4.8. Stationary Emissions By Equipment Type
4.8.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Equipme
nt
Type
ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — —
4.9. User Defined Emissions By Equipment Type
4.9.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) 643
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Equipme ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e nt
Type
Daily,
Summer
(Max)
— — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — —
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Vegetatio
n
ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — —
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4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — —
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Species ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — — —
Avoided — — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — — —
Sequeste
red
— — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — — —
Removed — — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — —
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Daily, — — — — — — — — — — — — — — — — —
Winter
(Max)
Avoided — — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — — —
Sequeste
red
— — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — — —
Removed — — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — — — —
Avoided — — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — — —
Sequeste
red
— — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — — —
Removed — — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — —
5. Activity Data
5.1. Construction Schedule
Phase Name Phase Type Start Date End Date Days Per Week Work Days per Phase Phase Description Demolition Demolition 6/1/2024 6/7/2024 5.00 5.00 —
Site Preparation Site Preparation 6/8/2024 6/14/2024 5.00 5.00 — Grading Grading 6/15/2024 8/12/2024 5.00 41.0 —
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Building Construction Building Construction 8/13/2024 7/1/2025 5.00 230 — Paving Paving 7/2/2025 7/8/2025 5.00 5.00 —
Architectural Coating Architectural Coating 8/27/2024 7/14/2025 5.00 230 —
5.2. Off-Road Equipment
5.2.1. Unmitigated
Phase Name Equipment Type Fuel Type Engine Tier Number per Day Hours Per Day Horsepower Load Factor Demolition Concrete/Industrial
Saws
Diesel Average 1.00 8.00 33.0 0.73
Demolition Excavators Diesel Average 3.00 8.00 36.0 0.38 Demolition Rubber Tired Dozers Diesel Average 2.00 8.00 367 0.40 Site Preparation Rubber Tired Dozers Diesel Average 3.00 8.00 367 0.40 Site Preparation Tractors/Loaders/Backh
oes
Diesel Average 4.00 8.00 84.0 0.37
Grading Excavators Diesel Average 1.00 8.00 36.0 0.38
Grading Graders Diesel Average 1.00 8.00 148 0.41
Grading Rubber Tired Dozers Diesel Average 1.00 8.00 367 0.40 Grading Tractors/Loaders/Backh
oes
Diesel Average 3.00 8.00 84.0 0.37
Building Construction Cranes Diesel Average 1.00 7.00 367 0.29 Building Construction Forklifts Diesel Average 3.00 8.00 82.0 0.20 Building Construction Generator Sets Diesel Average 1.00 8.00 14.0 0.74 Building Construction Tractors/Loaders/Backh
oes
Diesel Average 3.00 7.00 84.0 0.37
Building Construction Welders Diesel Average 1.00 8.00 46.0 0.45 Paving Pavers Diesel Average 2.00 8.00 81.0 0.42
Paving Paving Equipment Diesel Average 2.00 8.00 89.0 0.36 Paving Rollers Diesel Average 2.00 8.00 36.0 0.38 647
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Architectural Coating Air Compressors Diesel Average 1.00 6.00 37.0 0.48
5.3. Construction Vehicles
5.3.1. Unmitigated
Phase Name Trip Type One-Way Trips per Day Miles per Trip Vehicle Mix Demolition — — — —
Demolition Worker 15.0 11.7 LDA,LDT1,LDT2
Demolition Vendor — 8.40 HHDT,MHDT
Demolition Hauling 4.60 20.0 HHDT
Demolition Onsite truck — — HHDT
Site Preparation — — — —
Site Preparation Worker 17.5 11.7 LDA,LDT1,LDT2
Site Preparation Vendor — 8.40 HHDT,MHDT
Site Preparation Hauling 0.00 20.0 HHDT
Site Preparation Onsite truck — — HHDT
Grading — — — —
Grading Worker 15.0 11.7 LDA,LDT1,LDT2
Grading Vendor — 8.40 HHDT,MHDT
Grading Hauling 125 20.0 HHDT
Grading Onsite truck — — HHDT
Building Construction — — — —
Building Construction Worker 29.9 11.7 LDA,LDT1,LDT2
Building Construction Vendor 8.87 8.40 HHDT,MHDT
Building Construction Hauling 0.00 20.0 HHDT
Building Construction Onsite truck — — HHDT
Paving — — — —
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Paving Worker 15.0 11.7 LDA,LDT1,LDT2
Paving Vendor — 8.40 HHDT,MHDT
Paving Hauling 0.00 20.0 HHDT
Paving Onsite truck — — HHDT
Architectural Coating — — — —
Architectural Coating Worker 5.98 11.7 LDA,LDT1,LDT2
Architectural Coating Vendor — 8.40 HHDT,MHDT
Architectural Coating Hauling 0.00 20.0 HHDT
Architectural Coating Onsite truck — — HHDT
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
Non-applicable. No control strategies activated by user.
5.5. Architectural Coatings
Phase Name Residential Interior Area Coated
(sq ft)
Residential Exterior Area Coated
(sq ft)
Non-Residential Interior Area
Coated (sq ft)
Non-Residential Exterior Area
Coated (sq ft)
Parking Area Coated (sq ft)
Architectural Coating 327,746 109,249 0.00 0.00 —
5.6. Dust Mitigation
5.6.1. Construction Earthmoving Activities
Phase Name Material Imported (Cubic Yards) Material Exported (Cubic Yards) Acres Graded (acres) Material Demolished (Building Square Footage)
Acres Paved (acres)
Demolition 0.00 0.00 0.00 2,000 —
Site Preparation 0.00 0.00 37.5 0.00 —
Grading 41,130 0.00 20.0 0.00 —
Paving 0.00 0.00 0.00 0.00 0.91 649
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5.6.2. Construction Earthmoving Control Strategies
Control Strategies Applied Frequency (per day) PM10 Reduction PM2.5 Reduction Water Exposed Area 2 61% 61%
Water Demolished Area 2 36% 36%
5.7. Construction Paving
Land Use Area Paved (acres) % Asphalt
Single Family Housing 0.91 0%
5.8. Construction Electricity Consumption and Emissions Factors kWh per Year and Emission Factor (lb/MWh)
Year kWh per Year CO2 CH4 N2O
2024 0.00 204 0.03 < 0.005
2025 0.00 204 0.03 < 0.005
5.9. Operational Mobile Sources
5.9.1. Unmitigated
Land Use Type Trips/Weekday Trips/Saturday Trips/Sunday Trips/Year VMT/Weekday VMT/Saturday VMT/Sunday VMT/Year Single Family
Housing
784 792 710 282,566 7,975 8,060 7,224 2,876,229
5.10. Operational Area Sources
5.10.1. Hearths
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5.10.1.1. Unmitigated
Hearth Type Unmitigated (number)
Single Family Housing —
Wood Fireplaces 0
Gas Fireplaces 0
Propane Fireplaces 0
Electric Fireplaces 0
No Fireplaces 83
Conventional Wood Stoves 0
Catalytic Wood Stoves 0
Non-Catalytic Wood Stoves 0
Pellet Wood Stoves 0
5.10.2. Architectural Coatings
Residential Interior Area Coated (sq ft) Residential Exterior Area Coated (sq ft) Non-Residential Interior Area Coated (sq ft)
Non-Residential Exterior Area Coated
(sq ft)
Parking Area Coated (sq ft)
327746.25 109,249 0.00 0.00 —
5.10.3. Landscape Equipment
Season Unit Value
Snow Days day/yr 0.00
Summer Days day/yr 180
5.11. Operational Energy Consumption
5.11.1. Unmitigated
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Electricity (kWh/yr) and CO2 and CH4 and N2O and Natural Gas (kBTU/yr) Land Use Electricity (kWh/yr) CO2 CH4 N2O Natural Gas (kBTU/yr) Single Family Housing 513,343 204 0.0330 0.0040 3,836,420
5.12. Operational Water and Wastewater Consumption
5.12.1. Unmitigated
Land Use Indoor Water (gal/year) Outdoor Water (gal/year) Single Family Housing 3,020,563 14,181,389
5.13. Operational Waste Generation
5.13.1. Unmitigated
Land Use Waste (ton/year) Cogeneration (kWh/year)
Single Family Housing 57.5 —
5.14. Operational Refrigeration and Air Conditioning Equipment
5.14.1. Unmitigated
Land Use Type Equipment Type Refrigerant GWP Quantity (kg) Operations Leak Rate Service Leak Rate Times Serviced Single Family Housing Average room A/C &
Other residential A/C
and heat pumps
R-410A 2,088 < 0.005 2.50 2.50 10.0
Single Family Housing Household refrigerators
and/or freezers
R-134a 1,430 0.12 0.60 0.00 1.00
5.15. Operational Off-Road Equipment
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5.15.1. Unmitigated
Equipment Type Fuel Type Engine Tier Number per Day Hours Per Day Horsepower Load Factor
5.16. Stationary Sources
5.16.1. Emergency Generators and Fire Pumps
Equipment Type Fuel Type Number per Day Hours per Day Hours per Year Horsepower Load Factor
5.16.2. Process Boilers
Equipment Type Fuel Type Number Boiler Rating (MMBtu/hr) Daily Heat Input (MMBtu/day) Annual Heat Input (MMBtu/yr)
5.17. User Defined
Equipment Type Fuel Type
— —
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
Vegetation Land Use Type Vegetation Soil Type Initial Acres Final Acres
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
Biomass Cover Type Initial Acres Final Acres
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5.18.2. Sequestration
5.18.2.1. Unmitigated
Tree Type Number Electricity Saved (kWh/year) Natural Gas Saved (btu/year)
6. Climate Risk Detailed Report
6.1. Climate Risk Summary
Cal-Adapt midcentury 2040–2059 average projections for four hazards are reported below for your project location. These are under Representation Concentration Pathway (RCP) 8.5 which assumes GHG emissions will continue to rise strongly through 2050 and then plateau around 2100.
Climate Hazard Result for Project Location Unit
Temperature and Extreme Heat 19.3 annual days of extreme heat Extreme Precipitation 2.10 annual days with precipitation above 20 mm Sea Level Rise 0.00 meters of inundation depth
Wildfire 8.54 annual hectares burned
Temperature and Extreme Heat data are for grid cell in which your project are located. The projection is based on the 98th historical percentile of daily maximum/minimum temperatures from observed historical data (32 climate model ensemble from Cal-Adapt, 2040–2059 average under RCP 8.5). Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi.
Extreme Precipitation data are for the grid cell in which your project are located. The threshold of 20 mm is equivalent to about ¾ an inch of rain, which would be light to moderate rainfall if received over a full day or heavy rain if received over a period of 2 to 4 hours. Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi.
Sea Level Rise data are for the grid cell in which your project are located. The projections are from Radke et al. (2017), as reported in Cal-Adapt (2040–2059 average under RCP 8.5), and consider different increments of sea level rise coupled with extreme storm events. Users may select from four model simulations to view the range in potential inundation depth for the grid cell. The four simulations make different assumptions about expected rainfall and temperature are: Warmer/drier (HadGEM2-ES), Cooler/wetter (CNRM-CM5), Average conditions (CanESM2), Range of different rainfall and temperature possibilities (MIROC5). Each grid cell is 50 meters (m) by 50 m, or about 164 feet (ft) by 164 ft.
Wildfire data are for the grid cell in which your project are located. The projections are from UC Davis, as reported in Cal-Adapt (2040–2059 average under RCP 8.5), and consider historical data of climate, vegetation, population density, and large (> 400 ha) fire history. Users may select from four model simulations to view the range in potential wildfire probabilities for the grid cell. The four simulations make different assumptions about expected rainfall and temperature are: Warmer/drier (HadGEM2-ES), Cooler/wetter (CNRM-CM5), Average conditions (CanESM2), Range of different rainfall and temperature possibilities (MIROC5). Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi.
6.2. Initial Climate Risk Scores
Climate Hazard Exposure Score Sensitivity Score Adaptive Capacity Score Vulnerability Score Temperature and Extreme Heat N/A N/A N/A N/A
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Extreme Precipitation 1 0 0 N/A
Sea Level Rise 1 0 0 N/A
Wildfire 1 0 0 N/A
Flooding N/A N/A N/A N/A
Drought N/A N/A N/A N/A
Snowpack Reduction N/A N/A N/A N/A
Air Quality Degradation 0 0 0 N/A
The sensitivity score reflects the extent to which a project would be adversely affected by exposure to a climate hazard. Exposure is rated on a scale of 1 to 5, with a score of 5 representing the greatest exposure.
The adaptive capacity of a project refers to its ability to manage and reduce vulnerabilities from projected climate hazards. Adaptive capacity is rated on a scale of 1 to 5, with a score of 5 representing the greatest ability to adapt.
The overall vulnerability scores are calculated based on the potential impacts and adaptive capacity assessments for each hazard. Scores do not include implementation of climate risk reduction measures.
6.3. Adjusted Climate Risk Scores
Climate Hazard Exposure Score Sensitivity Score Adaptive Capacity Score Vulnerability Score Temperature and Extreme Heat N/A N/A N/A N/A
Extreme Precipitation 1 1 1 2
Sea Level Rise 1 1 1 2
Wildfire 1 1 1 2
Flooding N/A N/A N/A N/A
Drought N/A N/A N/A N/A
Snowpack Reduction N/A N/A N/A N/A
Air Quality Degradation 1 1 1 2
The sensitivity score reflects the extent to which a project would be adversely affected by exposure to a climate hazard. Exposure is rated on a scale of 1 to 5, with a score of 5 representing the greatest exposure.
The adaptive capacity of a project refers to its ability to manage and reduce vulnerabilities from projected climate hazards. Adaptive capacity is rated on a scale of 1 to 5, with a score of 5 representing the greatest ability to adapt.
The overall vulnerability scores are calculated based on the potential impacts and adaptive capacity assessments for each hazard. Scores include implementation of climate risk reduction measures.
6.4. Climate Risk Reduction Measures
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7. Health and Equity Details
7.1. CalEnviroScreen 4.0 Scores
The maximum CalEnviroScreen score is 100. A high score (i.e., greater than 50) reflects a higher pollution burden compared to other census tracts in the state.
Indicator Result for Project Census Tract
Exposure Indicators —
AQ-Ozone 35.2
AQ-PM 27.7
AQ-DPM 61.3
Drinking Water 29.0
Lead Risk Housing 27.7
Pesticides 60.1
Toxic Releases 29.3
Traffic 17.3
Effect Indicators —
CleanUp Sites 62.4
Groundwater 54.5
Haz Waste Facilities/Generators 65.9
Impaired Water Bodies 96.3
Solid Waste 0.00
Sensitive Population —
Asthma 83.9
Cardio-vascular 86.0
Low Birth Weights 45.3
Socioeconomic Factor Indicators —
Education 59.6
Housing 69.9
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Linguistic 29.5
Poverty 68.9
Unemployment 37.7
7.2. Healthy Places Index Scores
The maximum Health Places Index score is 100. A high score (i.e., greater than 50) reflects healthier community conditions compared to other census tracts in the state.
Indicator Result for Project Census Tract
Economic —
Above Poverty 36.32747337
Employed 29.10304119
Median HI 43.73155396
Education —
Bachelor's or higher 13.64044655
High school enrollment 8.135506224
Preschool enrollment 15.37277044
Transportation —
Auto Access 48.06877967
Active commuting 10.66341589
Social —
2-parent households 43.60323367
Voting 45.34838958
Neighborhood —
Alcohol availability 52.97061465
Park access 18.88874631
Retail density 39.2403439
Supermarket access 74.40010266
Tree canopy 63.39022199
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Housing—
Homeownership 57.5003208
Housing habitability 33.63274734
Low-inc homeowner severe housing cost burden 20.08212498 Low-inc renter severe housing cost burden 3.349159502
Uncrowded housing 66.9190299
Health Outcomes—
Insured adults 50.62235339
Arthritis 0.0
Asthma ER Admissions 9.9
High Blood Pressure 0.0
Cancer (excluding skin) 0.0
Asthma 0.0
Coronary Heart Disease 0.0
Chronic Obstructive Pulmonary Disease 0.0
Diagnosed Diabetes 0.0
Life Expectancy at Birth 15.1
Cognitively Disabled 82.5
Physically Disabled 60.6
Heart Attack ER Admissions 6.1
Mental Health Not Good 0.0
Chronic Kidney Disease 0.0
Obesity 0.0
Pedestrian Injuries 42.4
Physical Health Not Good 0.0
Stroke 0.0
Health Risk Behaviors—
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Binge Drinking 0.0
Current Smoker 0.0
No Leisure Time for Physical Activity 0.0
Climate Change Exposures —
Wildfire Risk 0.0
SLR Inundation Area 0.0
Children 84.9
Elderly 49.5
English Speaking 74.0
Foreign-born 29.8
Outdoor Workers 18.9
Climate Change Adaptive Capacity —
Impervious Surface Cover 43.8
Traffic Density 39.1
Traffic Access 60.3
Other Indices —
Hardship 55.0
Other Decision Support —
2016 Voting 34.9
7.3. Overall Health & Equity Scores
Metric Result for Project Census Tract
CalEnviroScreen 4.0 Score for Project Location (a) 65.0 Healthy Places Index Score for Project Location (b) 29.0 Project Located in a Designated Disadvantaged Community (Senate Bill 535) Yes Project Located in a Low-Income Community (Assembly Bill 1550) Yes Project Located in a Community Air Protection Program Community (Assembly Bill 617) No 659
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a: The maximum CalEnviroScreen score is 100. A high score (i.e., greater than 50) reflects a higher pollution burden compared to other census tracts in the state. b: The maximum Health Places Index score is 100. A high score (i.e., greater than 50) reflects healthier community conditions compared to other census tracts in the state.
7.4. Health & Equity Measures
No Health & Equity Measures selected.
7.5. Evaluation Scorecard
Health & Equity Evaluation Scorecard not completed.
7.6. Health & Equity Custom Measures
No Health & Equity Custom Measures created.
8. User Changes to Default Data
Screen Justification
Land Use AQ questionnaire acreage.
Construction: Construction Phases AQ questionnaire - demo 5 days, site prep 5 days, paving 5 days.
Arch coatings phase starts 2 weeks after the start of building construction phase and lasts for the same amount of days.
Construction: Dust From Material Movement AQ questionnaire for grading imports. BAAQMD guidance indicates use water exposed area slide on.
Operations: Hearths AQ questionnaire indicated zero fire places.
Construction: On-Road Fugitive Dust BAAQMD guidance appendix D recommends changing road silt loading to 0.5 g/m2. BAAQMD guidance also recommends BMP-4 be captured in the modeling by changing vehicle speeds to 15 mph.
660
Road Construction Emissions Model, Version 9.0.0
Daily Emission Estimates for -> Total Exhaust Fugitive Dust Total Exhaust Fugitive Dust Project Phases (Pounds) ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) SOx (lbs/day) CO2 (lbs/day) CH4 (lbs/day) N2O (lbs/day) CO2e (lbs/day) Grubbing/Land Clearing 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Grading/Excavation 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Drainage/Utilities/Sub-Grade 1.84 21.90 17.26 1.56 0.76 0.80 0.86 0.69 0.17 0.04 4,067.43 0.69 0.06 4,103.24 Paving 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Maximum (pounds/day) 1.84 21.90 17.26 1.56 0.76 0.80 0.86 0.69 0.17 0.04 4,067.43 0.69 0.06 4,103.24 Total (tons/construction project) 0.08 0.90 0.71 0.06 0.03 0.03 0.04 0.03 0.01 0.00 166.76 0.03 0.00 168.23 Notes: Project Start Year -> 2024
Project Length (months) -> 2
Total Project Area (acres) -> 0
Maximum Area Disturbed/Day (acres) -> 0
Water Truck Used? -> Yes
Phase Soil Asphalt Soil Hauling Asphalt Hauling Worker Commute Water Truck Grubbing/Land Clearing 0 0 0 0 200 40
Grading/Excavation 0 0 0 0 800 40
Drainage/Utilities/Sub-Grade 0 0 0 0 560 40
Paving 0 0 0 0 400 40
CO2e emissions are estimated by multiplying mass emissions for each GHG by its global warming potential (GWP), 1 , 25 and 298 for CO2, CH4 and N2O, respectively. Total CO2e is then estimated by summing CO2e estimates over all GHGs.
Total Emission Estimates by Phase for -> Total Exhaust Fugitive Dust Total Exhaust Fugitive Dust Project Phases
(Tons for all except CO2e. Metric tonnes for CO2e) ROG (tons/phase) CO (tons/phase) NOx (tons/phase) PM10 (tons/phase) PM10 (tons/phase) PM10 (tons/phase) PM2.5 (tons/phase) PM2.5 (tons/phase) PM2.5 (tons/phase) SOx (tons/phase) CO2 (tons/phase) CH4 (tons/phase) N2O (tons/phase) CO2e (MT/phase) Grubbing/Land Clearing 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Grading/Excavation 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Drainage/Utilities/Sub-Grade 0.08 0.90 0.71 0.06 0.03 0.03 0.04 0.03 0.01 0.00 166.76 0.03 0.00 152.62 Paving 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Maximum (tons/phase) 0.08 0.90 0.71 0.06 0.03 0.03 0.04 0.03 0.01 0.00 166.76 0.03 0.00 152.62 Total (tons/construction project) 0.08 0.90 0.71 0.06 0.03 0.03 0.04 0.03 0.01 0.00 166.76 0.03 0.00 152.62 CO2e emissions are estimated by multiplying mass emissions for each GHG by its global warming potential (GWP), 1 , 25 and 298 for CO2, CH4 and N2O, respectively. Total CO2e is then estimated by summing CO2e estimates over all GHGs.
The CO2e emissions are reported as metric tons per phase.
Daily VMT (miles/day)
Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns G and H. Total PM2.5 emissions shown in Column I are the sum of exhaust and fugitive dust emissions shown in columns J and K.
Village at 2092 Oakley
PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.
Village at 2092 Oakley
PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.
Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns G and H. Total PM2.5 emissions shown in Column I are the sum of exhaust and fugitive dust emissions shown in columns J and K.
Total Material Imported/Exported
Volume (yd3
/day)
661
Appendix B
Planning Survey Report
662
Planning Survey Report Form, Revised July 2015
Application Form and Planning Survey Report
To Comply With and Receive Permit Coverage Under
The East Contra Costa County Habitat Conservation Plan
and Natural Community Conservation Plan
Please complete this application to apply for take authorization under the state and federal East Contra Costa County HCP/NCCP incidental take permits. The East Contra Costa County Habitat Conservancy (“Conservancy”) or local jurisdiction (City of Brentwood, City of Clayton, City of Oakley, City of Pittsburg, and Contra Costa County) may request more information in order to deem the application complete.
I. PROJECT OVERVIEW
PROJECT INFORMATION
PROJECT NAME: The Village at 2092 Oakley Road Subdivision PROJECT TYPE: Residential Commercial Transportation Utility Other PROJECT DESCRIPTION (BRIEF): Subdivide 9.99 acre Property into 83 single-family, detached residential lots, on-site parking, toddler park, & community gathering areas, as well as other improvements.
PROJECT ADDRESS/LOCATION: 2092 Oakley Road, Oakley, CA 94561 PARCEL/PROJECT SIZE (ACRES): 9.99 ac
PROJECT APN(S): 037-110-031
APPLICATION SUBMITTAL DATE: FINAL PSR DATE: (City/County/Conservancy use) LEAD PLANNER:
JURISDICTION: City of Brentwood City of Clayton City of Oakley City of Pittsburg Contra Costa County Participating Special Entity*
DEVELOPMENT FEE ZONE: Zone I Zone II Zone III Zone IV
See figure 9-1 of the HCP/NCCP at www.cocohcp.org for a generalized development fee zone map. Detailed development fee zone maps by jurisdiction are available from the jurisdiction.
PROJECT APPLICANT INFORMATION
APPLICANT’S NAME: John D'Ambrosio & Juliann D'Ambrosio, Trustees of the John D'Ambrosio Family Trust AUTHORIZED AGENT’S NAME AND TITLE: Owen Poole, Real Estate Services PHONE NO.: (925) 933-4928 APPLICANT’S E-MAIL: [email protected] MAILING ADDRESS: 151 Spyrock Court, Walnut Creek, CA 94595 BIOLOGIST INFORMATION1
BIOLOGICAL/ENVIRONMENTAL FIRM: Olberding Environmental, Inc.
CONTACT NAME AND TITLE: Jeff Olberding
PHONE NO.: (916) 985-1188 CONTACT’S E-MAIL: [email protected] MAILING ADDRESS: 193 Blue Ravine Road, Suite 165, Folsom, CA 95630 1 A USFWS/CDFW-approved biologist (project-specific) is required to conduct the surveys. Please submit biologist(s) approval request to the Conservancy. *Participating Special Entities are organizations not subject to the authority of a local jurisdiction. Such organizations may include school districts, irrigation districts, transportation agencies, local park districts, geological hazard abatement districts, or other utilities or special districts that own land or provide public services.
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Planning Survey Report Form, Revised July 2015
II. PROJECT DETAILS
Please complete and/or provide the following attachments:
1) Project Description
Attach as Attachment A: Project Description. Provide a detailed written description that concisely and completely describes the project and location. Include the following information:
• All activities proposed for the site or project, including roads utilized, construction staging areas, and the installation of underground facilities, to ensure the entire project is covered by the HCP/NCCP permit
• Proposed construction dates, including details on construction phases, if applicable • Reference a City/County application number for the project, if applicable • General Best Management Practices, if applicable
• If the project will have temporary impacts, please provide a restoration plan describing how the site will be restored to pre-project conditions, including revegetation seed mixes or plantings and timing 2) Project Vicinity Map
Provide a project vicinity map. Attach as Figure 1 in Attachment B: Figures. 3) Project Site Plans
Provide any project site plans for the project. Attach as Figure 2 in Attachment B: Figures. 4) CEQA Document
Indicate the status of CEQA documents prepared for the project. Provide additional comments below table if necessary.
Type of Document Status Date Completed
Initial Study In-Process TBD
Notice of Preparation
Draft EIR
Final EIR
Notice of Categorical Exemption
Notice of Statutory Exemption
Other (describe)
IS/MND to be conducted by Raney Planning & Management, Inc.
III. EXISTING CONDITIONS AND IMPACTS
Please complete and/or provide the following attachments:
1) Field-Verified Land Cover Map2
Attach a field-verified land cover map in Attachment B: Figures and label as Figure 3. The map should contain all land cover types present on-site overlaid on aerial/satellite imagery. Map colors for the land cover types should conform to the HCP/NCCP (see Figure 3-3: Landcover in the Inventory Area for land cover type legend).
2) Photographs of the Project Site
Attach representative photos of the project site in Attachment B: Figures and label as Figure 4. Please provide captions for each photo.
2 For PSEs and city or county public works projects, please also identify permanent and temporary impact areas by overlaying crosshatching (permanent impacts) and hatching (temporary impacts) on the land cover map.
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Planning Survey Report Form, Revised July 2015
3) Land Cover Types and Impacts and Supplemental Tables • For all terrestrial land cover types please provide calculations to the nearest hundredth of an acre (0.01).
For aquatic land cover types please provide calculations to the nearest thousandth of an acre (0.001). • Permanent Impacts are broadly defined in the ECCC HCP/NCCP to include all areas removed from an undeveloped or habitat-providing state and includes land in the same parcel or project that is not developed, graded, physically altered, or directly affected in any way but is isolated from natural areas by the covered activity. Unless such undeveloped land is dedicated to the Preserve System or is a deed-restricted creek setback, the development mitigation fee will apply (if proposed, would require Conservancy approval). • Temporary Impacts are broadly defined in the ECCC HCP/NCCP as any impact on vegetation or habitat that does not result in permanent habitat removal (i.e. vegetation can eventually recover). • If wetland (riparian woodland/scrub, wetland, or aquatic) land cover types are present on the parcel but will not be impacted please discuss in the following section 4) Jurisdictional Wetlands and Waters. Wetland impact fees will only be charged if wetland features are impacted. However, development fees will apply to the entire parcel. • Stream land cover type is considered a linear feature where impacts are calculated based on length impacted. The acreage within a stream, below Top of Bank (TOB), must be assigned to the adjacent land cover type(s). Insert area of impact to stream below TOB in parentheses after the Land Cover acreage number (e.g., Riparian Woodland/Scrub: 10 (0.036) – where 10 is the total impacted acreage including 0.036 acre, which is the acreage within stream TOB).
Complete following supplemental Stream Feature Detail table to provide information for linear feet. • Total Impacts acreage should be the total parcel acreage (development project) or project footprint acreage (rural infrastructure or utility project).
Table 1: Land Cover Types and Impacts
Land Cover Type Permanent
Impacts
Temporary
Impacts
Stream Setback Preserve System
Dedication
Grassland
Annual Grassland
Alkali Grassland
Ruderal
Shrubland
Chaparral and Scrub
Woodland
Oak Savannah
Oak Woodland
Riparian
Riparian Woodland/Scrub
Wetland
Permanent Wetland
Seasonal Wetland
Alkali Wetland
Aquatic
Aquatic (Reservoir/Open Water)
Slough/Channel
Pond
Stream (in linear feet) - - - -
Irrigated Agriculture
Pasture
Cropland
Orchard
Vineyard 9.99
Other
Nonnative woodland
Wind turbines
Developed (not counted toward Fees)
Urban
Aqueduct
Turf
Landfill
TOTAL IMPACTS 9.99
Proposed for HCP/NCCP
Dedication on the Parcel
(Requires Conservancy Approval)
665
Planning Survey Report Form, Revised July 2015
Identify any uncommon vegetation and uncommon landscape features3:
Supplemental to Table 1: Uncommon Vegetation and Landscape Features Please provide details of impacts to stream features:
Stream Name: N/A
Watershed:
Supplemental to Table 1: Stream Feature Detail5
3 These acreages are for Conservancy tracking purposes. Impacts to these uncommon vegetation and landscape features should be accounted for within the land cover types in Table 1 (e.g., x acres of purple needlegrass in this supplemental table should be accounted for within annual grassland in Table 1). 4 Insert amount/number, not acreage. Provide additional information on these features in Attachment A: Project Description. 5 Use more than 1 row as necessary to describe impacts to streams on site. 6 See glossary (Appendix A) for definition of stream type and order. 7 Stream length is measured along stream centerline, based on length of impact to any part of the stream channel, TOB to TOB.
Permanent
Impacts
Temporary
Impacts
Uncommon Grassland Alliances
Purple Needlegrass Grassland
Blue Wildrye Grassland
Creeping Ryegrass Grassland
Wildflower Fields
Squirreltail Grassland
One-sided Bluegrass Grassland
Serpentine Bunchgrass Grassland
Saltgrass Grassland
Alkali Sacaton Bunchgrass Grassland
Other
Uncommon Landscape Features
Rock Outcrops
Caves
Springs and seeps
Scalds
Sand Deposits 9.99
Mines4
Buildings (bat roosts)3 0.25
Potential nest sites (trees or cliffs)3 0.25
Stream Width Stream Type6 Permanent Impacts
(linear feet)7
Temporary Impacts
(linear feet)7
≤ 25 feet wide
> 25 feet wide
Perennial
Intermittent
Ephemeral, 3rd or higher order
Ephemeral, 1st or 2nd order
≤ 25 feet wide
> 25 feet wide
Perennial
Intermittent
Ephemeral, 3rd or higher order
Ephemeral, 1st or 2nd order
≤ 25 feet wide
> 25 feet wide
Perennial
Intermittent
Ephemeral, 3rd or higher order
Ephemeral, 1st or 2nd order
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Planning Survey Report Form, Revised July 2015
4) Summary of Land Cover Types
Please provide a written summary of descriptions for land cover types found on site including characteristic vegetation.
The Property is currently planted as a vineyard with rows of grape vines on a sandy soil substrate (Delhi sand, 2 to 9 percent slopes). There are two residences on the Property and associated outbuildings, and non-native, ornamental trees. Trees on the Property include almond, pine, and other non-native species. There is also a false water tower located in the northeast corner of the Property. 5) Jurisdictional Wetlands and Waters
If wetlands and waters are present on the project site, project proponents must conduct a delineation of jurisdictional wetlands and waters. Jurisdictional wetlands and waters are defined on pages 1-18 and 1-19 of the ECCC HCP/NCCP as the following land cover types: permanent wetland, seasonal wetland, alkali wetland, aquatic, pond, slough/channel, and stream. It should be noted that these features differ for federal and state jurisdictions. If you have identified any of these land cover types in Table 1, complete the section below. a) Attach the wetland delineation report as Attachment E: Wetland Delineation. If a wetland delineation has not been completed, please explain below in section 4c. b) Please check the following permits the project may require. Please submit copies of these permits to the Conservancy prior to the start of construction:
CWA Section 404 Permit8 CWA Section 401 Water Quality Certification Waste Discharge Requirements Lake and Streambed Alteration Agreement c) Provide any additional information on impacts to jurisdictional wetland and waters below, including status of the permit(s):
There are no wetlands/waters on the Property.
8 The USACE Sacramento District issued a Regional General Permit 1 (RGP) related to ECCC HCP/NCCP covered activities. The RGP is designed to streamline wetland permitting in the entire ECCC HCP/NCCP Plan Area by coordinating the avoidance, minimization, and mitigation measures in the Plan with the Corps’ wetland permitting requirement. Applicants seeking authorization under this RGP shall notify the Corps in accordance with RGP general condition number 18 (Notification). 667
Planning Survey Report Form, Revised July 2015
6) Species-Specific Planning Survey Requirements
Based on the land cover types found on-site and identified in Table 1, check the applicable boxes in Table 2a.
Table 2a. Species –Specific Planning Survey Requirements Land Cover Type
in Project Area Required Survey Species Habitat Element in Project Area Planning Survey Requirement9 Info in HCP Grasslands,
oak savannah,
agriculture, or
ruderal
San Joaquin kit fox Assumed if within modeled range
of species
If within modeled range of species,
identify and map potential breeding or
denning habitat within the project site
and a 250-ft radius around the project
footprint.
pp. 6-37
to 6-38
Western burrowing
owl
Assumed Identify and map potential breeding
habitat within the project site and a
500-ft radius around the project
footprint. Please note the HCP
requires buffers for occupied burrows.
Surveys may need to encompass an
area larger than the project footprint.
pp. 6-39
to 6-41
Aquatic
(ponds,
wetlands,
streams, sloughs,
channels, and
marshes)
Giant garter snake Aquatic habitat accessible from
the San Joaquin River
Identify and map potential habitat. pp. 6-43
to 6-45
California tiger
salamander
Ponds and wetlands
Vernal pools
Reservoirs
Small lakes
Identify and map potential breeding
habitat. Document habitat quality and
features. Provide the Conservancy
with photo-documentation and report.
pp. 6-45
California
red-legged frog
Slow-moving streams, ponds and
wetlands
Identify and map potential breeding
habitat. Document habitat quality and
features. Provide the Conservancy
with photo-documentation and report.
p. 6-46
Covered shrimp Seasonal wetlands
Vernal pools
Sandstone rock outcrops
Sandstone depressions
Identify and map potential habitat.
Please note the HCP requires a 50 foot
non-disturbance buffer from seasonal
wetlands that may be occupied by
covered shrimp. Surveys may need to
encompass an area larger than the
project footprint.
pp. 6-46
to 6-48
Any Townsend’s big-eared
bat
Rock formations with caves
Mines
Abandoned buildings outside
urban area
Map and document potential breeding
or roosting habitat.
pp. 6-36
to 6-37
Swainson’s hawk Potential nest sites within 1,000
feet of project
Inspect large trees for presence of nest
sites. Document and map.
pp. 6-41
to 6-43
Golden Eagle Potential nest sites with ½ mile of
project
Inspect large trees for presence of nest
sites. Document and map.
pp. 6-38
to 6-39
Surveys for all covered species must be conducted by a qualified biologist (USFWS/CDFW project-specific approved). Please submit biologist approval request to the East Contra Costa County Habitat Conservancy.
Surveys for all covered species must be conducted according to the respective USFWS or CDFW survey protocols, as identified in Chapter
6.4.3 in the HCP/NCCP.
7) Planning Survey Species Habitat Maps
Provide Planning Survey Species Habitat Maps as required in Table 2a, attach as Figure 5 in Attachment B:
Figures.
9 The planning survey requirements in this table are not comprehensive. Please refer to Chapter 6.4.3 in the ECCC HCP/NCCP for more detail. 668
Planning Survey Report Form, Revised July 2015
8) Results of Species Specific Surveys
Provide a written summary describing the results of the planning surveys. Please discuss the location, quantity, and quality of suitable habitat for specified covered wildlife species on the project site.
Olberding Environmental biologist, Richard Lescalleet, conducted a survey of species habitat within the entire study area, including visible portions of the adjacent properties on April 27, 2023 at approximately 2:00pm. The purpose ofthe habitat survey was to evaluate wildlife habitats and the potential for any protected species to occur on or adjacent to the Property. A reconnaissance‐level raptor survey was conducted on the Property. Observation points were established on the periphery of the site to view raptor activity over a thirty‐minute time period. This survey was conducted with the use of binoculars and notes were taken for each species occurrence. Additionally, utility poles and other perch sites in the vicinity of the Property were observed. All raptor activity within and adjacent to the Property was recorded during the reconnaissance‐level observation period. A reconnaissance‐level burrowing owl survey was also conducted on the Property, to identify potential burrow sites or burrowing owl use of on‐site habitat. The general presence and density of suitable burrow sites (e.g., rodent burrows) was evaluated for the Property. In addition to set observation points, transects no more than ten meters apart were walked across the entire property.
CNDDB listed 53 occurrences of burrowing owl within five miles of the Property. The closest occurrence (Occurrence #1873) was observed approximately 1.5 miles south of the Property in a fallow field just southwest of Laurel Road at Brown Road. Nine adults and three juveniles were observed in July 2007. The area surrounding the Property is historically known to provide suitable habitat for burrowing owls. Burrowing owls are known to occur within disked fields if small mammal burrows are present. The vineyard land use with sandy soil substrate on the Property could provide suitable foraging opportunities; however, no ground squirrels or burrows were observed on site. The burrows present on site were made by pocket gophers, which are too small for burrowing owls. Due to the high number occurrences in close proximity to the Property, pre‐construction surveys for burrowing owls would need to be completed before construction is initiated.
The CNDDB listed 14 occurrences of Swainson’s hawk within a 5‐mile radius of the Property. The closest occurrence (Occurrence #1799) is located approximately 1 miles northwest of the Property. In 2012, a nest was located within a dead redwood tree on the old Dupont property which was an old brownfield. That location is currently an Amazon Logistics and Shipping facility. It is unknown if the redwood tree is still present in that location. The area surrounding the Property is historically known to provide suitable habitat for Swainson’s hawk. The some of the ornamental trees on the Property and other trees within 1000 feet of the Property are of suitable size and may provide somewhat suitable nesting sites, but Swainson’s hawk characteristically prefers large, tall trees, such as eucalyptus, along riparian corridors. The Property provides somewhat suitable foraging habitat within the vineyard, but the surrounding developments may deter Swainson’s hawk as they prefer to forage in open habitat, such as fields. For these reasons, Swainson’s hawk has a moderate potential to occur on the Property in a breeding and foraging capacity.
The CNDDB did not list the golden eagle as occurring within five miles of the Property. There is no suitable habitat for golden eagle within a ½ ‐ mile buffer zone around the Property due to the lack of cliff‐walled canyons and tall trees with sufficient open space. The Property is surrounded by a highly urbanized area making golden eagle nesting and foraging unlikely.
9) Covered and No-Take Plants
Please check the applicable boxes in Table 2b based on the land cover types found in the project area. If suitable land cover types are present on site, surveys must be conducted using approved CDFW/USFWS methods during the appropriate season for identification of covered and no-take species (see page 6-9 of the ECCC HCP/NCCP). Reference populations of covered and no-take plants should be visited, where possible, prior to conducting surveys to confirm that the plant species is visible and detectable at the time surveys are conducted. In order to complete all the necessary covered and no-take plant surveys, spring, summer, and fall surveys may be required.
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Planning Survey Report Form, Revised July 2015
Table 2b. Covered and No-Take Plant Species
Plant Species
Covered
(C) or NoTake (N)Associated Land
Cover Type
Typical Habitat or Physical Conditions, if
Known
Typical Blooming
Period
Suitable Land
Cover Type
Present
Adobe navarretia
(Navarretia nigelliformis ssp.
radians)
a
C Annual Grassland Generally found on clay barrens in
Annual Grassland b
Apr–Jun Yes
No
Alkali milkvetch
(Astragalus tener ssp. tener)
N Alkali grassland
Alkali wetland
Annual grassland
Seasonal wetland
Generally found in vernally moist habitat
in soils with a slight to strongly elevated
pH
Mar–Jun Yes
No
Big tarplant
(Blepharizonia plumosa)
C Annual grassland Elevation below 1500 feet d most often on Altamont Series or Complex soils
Jul–Oct Yes
No
Brewer’s dwarf flax
(Hesperolinon breweri)
C Annual grassland
Chaparral and scrub
Oak savanna
Oak woodland
Generally, restricted to grassland areas
within a 500+ buffer from oak woodland
and/or chaparral/scrub d
May–Jul Yes
No
Brittlescale
(Atriplex depressa)
C Alkali grassland
Alkali wetland
Restricted to soils of the Pescadero or
Solano soil series; generally found in
southeastern region of plan area d
May–Oct Yes
No
Caper-fruited tropidocarpum
(Tropidocarpum capparideum)
N Alkali grassland Mar–Apr Yes
No
Contra Costa goldfields
(Lasthenia conjugens)
N Alkali grassland
Alkali wetland
Annual grassland
Seasonal wetland
Generally found in vernal pools Mar–Jun Yes
No
Diablo Helianthella
(Helianthella castanea)
C Chaparral and scrub
Oak savanna
Oak woodland
Elevations generally above 650 feet d Mar–Jun Yes
No
Diamond-petaled poppy
(Eschscholzia rhombipetala)
N Annual grassland Mar–Apr Yes
No
Large-flowered fiddleneck
(Amsinckia grandiflora)
N Annual grassland Generally on clay soil Apr–May Yes
No
Mount Diablo buckwheat
(Eriogonum truncatum)
N Annual grassland
Chaparral and scrub
Ecotone of grassland and chaparral/scrub Apr–Sep Yes
No
Mount Diablo fairy-lantern
(Calochortus pulchellus)
C Annual grassland
Chaparral and scrub
Oak savanna
Oak woodland
Elevations generally between 650 and
2,600d
Apr–Jun Yes
No
Mount Diablo Manzanita
(Arctostaphylos auriculata)
C Chaparral and scrub Elevations generally between 700 and 1,860 feet; restricted to the eastern and
northern flanks of Mt. Diablo d and the
vicinity of Black Diamond Mines
Jan–Mar Yes
No
Recurved larkspur
(Delphinium recurvatum)
C Alkali grassland
Alkali wetland
Mar–Jun Yes
No
Round-leaved filaree
(California macrophylla)
c
C Annual grassland Mar–May Yes
No
San Joaquin spearscale
(Extriplex joaquiniana)
e
C Alkali grassland
Alkali wetland
Apr–Oct Yes
No
Showy madia
(Madia radiata)
C Annual grassland
Oak savanna
Oak woodland
Primarily occupies open grassland or
grassland on edge of oak woodland
Mar–May Yes
No
a The species Navarretia nigelliformis subsp. nigelliformis is no longer considered to occur within Contra Costa County based on specimen annotations at the UC and Jepson Herbaria at the University of California Berkeley as well as the opinions of experts in the genus. This taxon is now recognized as Navarretia nigelliformis subsp. radians. Any subspecies of Navarretia nigelliformis encountered as a part of botanical surveys in support of a PSR should be considered as covered under this HCP/NCCP. b Habitat for the Navarretia nigelliformis subspecies that occurs within the inventory are is inaccurately described in the HCP/NCCP as vernal pools. The entity within the Inventory generally occupies clay barrens within Annual Grassland habitat, which is an upland habitat type. c From California Native Plant Society. 2007. Inventory of Rare and Endangered Plants (online edition, v7-07d). Sacramento, CA. Species may be identifiable outside of the typical blooming period; a professional botanist shall determine if a covered or no take plant occurs on the project site. Reference population of covered and no-take plants should be visited, where possible, prior to conducting surveys to confirm that the plant is visible and detectable at the time surveys are conducted. d See Species Profiles in Appendix D of the Final HCP/NCCP. Reference populations of covered and no-take plants should be visited, where possible, prior to conducting surveys to confirm that the plant species is visible and detectable at the time surveys are conducted. e In the recent update to the Jepson eflora (JFP 2013) Atriplex joaquinana has been circumscribed and segregated into a new genus called Extriplex based on the work of Elizabeth Zacharias and Bruce Baldwin (2010). The etymology of the genus Extriplex means, “beyond or outside Atriplex”. 670
Planning Survey Report Form, Revised July 2015
10) Results of Covered and No-Take Plant Species
Provide a written summary describing the results of the planning surveys conducted as required in Table 2b.
Describe the methods used to survey the site for all covered and no-take plants, including the dates and times of all surveys conducted (see Tables 3-8 and 6-5 of the ECCC HCP/NCCP for covered and no-take plants), including reference populations visited prior to conducting surveys.
If any covered or no-take plant species were found, include the following information in the results summary:
• Description and number of occurrences and their rough population size. • Description of the “health” of each occurrence, as defined on pages 5-49 and 5-50 of the HCP/NCCP. • A map of all the occurrences.
• Justification of surveying time window, if outside of the plant’s blooming period. • The CNDDB form(s) submitted to CDFW (if this is a new occurrence). • A description of the anticipated impacts that the covered activity will have on the occurrence and how the project will avoid impacts to all covered and no-take plant species. If impacts to covered plant species cannot be avoided and plants will be removed by covered activity, the Conservancy must be notified and has the option to salvage the covered plants. All projects must demonstrate avoidance of all six no-take plants (see table 6-5 of the HCP/NCCP).
There are no suitable land cover types on the Property for Covered and No‐Take Plant species. Therefore, plant surveys are not required.
671
Planning Survey Report Form, Revised July 2015
IV. SPECIES-SPECIFIC AVOIDANCE AND MINIMIZATION REQUIREMENTS Please complete and/or provide the following attachments:
1) Species-Specific Avoidance and Minimization for Selected Covered Wildlife Complete the following table and check the applicable box for covered species determined by the planning surveys.
Table 3. Summary of Applicable Preconstruction Surveys, Avoidance and Minimization, and Construction Monitoring Requirements10
Species Preconstruction Survey
Requirements
Avoidance and Minimization
Requirements Construction Monitoring Required Info in HCP San
Joaquin
kit fox
• On project footprint and 250-ft
radius, map all dens (>5 in.
diameter) and determine status
• Provide written survey results
to USFWS within 5 working
days after surveying
• Monitor dens
• Destroy unoccupied dens
• Discourage use of occupied (nonnatal) dens
• Establish exclusion zones ( >50 ft
for potential dens, and >100 ft for
known dens)
• Notify USFWS of occupied natal
dens
pp. 6-37
to 6-38
Western
burrowing
owl
• On project footprint and 500-ft
radius, identify and map all
owls and burrows, and
determine status
• Document use of habitat (e.g.
breeding, foraging)
• Avoid occupied nests during
breeding season (Feb-Sep)
• Avoid occupied burrows during
nonbreeding season (Sep – Feb)
• Install one-way doors in occupied
burrow (if avoidance not possible)
• Monitor burrows with doors
installed
• Establish buffer zones (250 ft
around nests)
• Establish buffer zones (160 ft
around burrows)
pp. 6-39
to 6-41
Giant
garter
snake
• Delineate aquatic habitat up to
200 ft from water’s edge on
each side
• Document any occurrences
• Limit construction to Oct-May
• Dewater habitat April 15 – Sep 30
prior to construction
• Minimize clearing for construction
• Delineate 200 ft buffer around
potential habitat near construction
• Provide field report on monitoring
efforts
• Stop construction activities if
snake is encountered; allow snake
to passively relocate
• Remove temporary fill or debris
from construction site
• Mandatory training for
construction personnel
pp. 6-43
to 6-45
California
tiger
salamander
• Provide written notification to
USFWS and CDFW regarding
timing of construction and
likelihood of occurrence on site
• Allow agency staff to translocate
species, if requested
• None p. 6-45
California
red-legged
frog
• Provide written notification to
USFWS and CDFW regarding
timing of construction and
likelihood of occurrence on site
• Allow agency staff to translocate
species, if requested
• None p. 6-46
Covered
shrimp
• Establish presence/absence
• Document and evaluate use of
all habitat features (e.g. vernal
pools, rock outcrops)
• Establish buffer near construction
activities
• Prohibit incompatible activities
• Establish buffer around outer edge
of all hydric vegetation associated
with habitat (50 ft or immediate
watershed, whichever is larger)
• Mandatory training for
construction personnel
pp. 6-46
to 6-48
Townsend’s
big-eared
bat
• Establish presence/absence
• Determine if potential sites
were recently occupied (guano)
• Seal hibernacula before Nov
• Seal nursery sites before April
• Delay construction near occupied
sites until hibernation or nursery
seasons are over
• None pp. 6-36
to 6-37
Swainson’s
hawk
• Determine whether potential
nests are occupied
• No construction within 1,000 ft of
occupied nests within breeding
season (March 15 - Sep 15)
• If necessary, remove active nest
tree after nesting season to
prevent occupancy in second year.
• Establish 1,000 ft buffer around
active nest and monitor
compliance (no activity within
established buffer)
pp. 6-41
to 6-43
Golden
Eagle
• Establish presence/absence of
nesting eagles
• No construction within ½ mile near
active nests (most activity late Jan
– Aug)
• Establish ½ mile buffer around
active nest and monitor
compliance with buffer
pp. 6-38
to 6-39
10 The requirements in this table are not comprehensive; they are detailed in the next section on the following page. 672
Planning Survey Report Form, Revised July 2015
2) Required Preconstruction Surveys, Avoidance and Minimization, and Construction Monitoring All preconstruction surveys shall be conducted in accordance with the requirements set forth in Section 6.4.3, Species-Level Measures, and Table 6-1 of the ECCC HCP/NCCP. Detailed descriptions of preconstruction surveys, avoidance and minimization, and construction monitoring applicable to each of the wildlife species in Table 3 are located below. Please remove the species-specific measures that do not apply to your project (highlight entire section and delete).
WESTERN BURROWING OWL
Preconstruction Surveys
Prior to any ground disturbance related to covered activities, a USFWS/CDFW- approved biologist will conduct a preconstruction survey in areas identified in the planning surveys as having potential burrowing owl habitat. The surveys will establish the presence or absence of western burrowing owl and/or habitat features and evaluate use by owls in accordance with CDFW survey guidelines (California Department of Fish and Game 1995).
On the parcel where the activity is proposed, the biologist will survey the proposed disturbance footprint and a 500- foot radius from the perimeter of the proposed footprint to identify burrows and owls. Adjacent parcels under different land ownership will not be surveyed. Surveys should take place near sunrise or sunset in accordance with CDFW guidelines. All burrows or burrowing owls will be identified and mapped. Surveys will take place no more than 30 days prior to construction. During the breeding season (February 1– August 31), surveys will document whether burrowing owls are nesting in or directly adjacent to disturbance areas. During the nonbreeding season (September 1–January 31), surveys will document whether burrowing owls are using habitat in or directly adjacent to any disturbance area. Survey results will be valid only for the season (breeding or nonbreeding) during which the survey is conducted.
Avoidance and Minimization and Construction Monitoring
This measure incorporates avoidance and minimization guidelines from CDFW’s Staff Report on Burrowing Owl Mitigation (California Department of Fish and Game 1995).
If burrowing owls are found during the breeding season (February 1 – August 31), the project proponent will avoid all nest sites that could be disturbed by project construction during the remainder of the breeding season or while the nest is occupied by adults or young. Avoidance will include establishment of a non-disturbance buffer zone (described below). Construction may occur during the breeding season if a qualified biologist monitors the nest and determines that the birds have not begun egg-laying and incubation or that the juveniles from the occupied burrows have fledged. During the nonbreeding season (September 1 – January 31), the project proponent should avoid the owls and the burrows they are using, if possible. Avoidance will include the establishment of a buffer zone (described below).
During the breeding season, buffer zones of at least 250 feet in which no construction activities can occur will be established around each occupied burrow (nest site). Buffer zones of 160 feet will be established around each burrow being used during the nonbreeding season. The buffers will be delineated by highly visible, temporary construction fencing.
If occupied burrows for burrowing owls are not avoided, passive relocation will be implemented. Owls should be excluded from burrows in the immediate impact zone and within a 160-foot buffer zone by installing one-way doors in burrow entrances. These doors should be in place for 48 hours prior to excavation. The project area should be monitored daily for 1 week to confirm that the owl has abandoned the burrow. Whenever possible, burrows should be excavated using hand tools and refilled to prevent reoccupation (California Department of Fish and Game 1995).
Plastic tubing or a similar structure should be inserted in the tunnels during excavation to maintain an escape route for any owls inside the burrow.
673
Planning Survey Report Form, Revised July 2015
SWAINSON’S HAWK
Preconstruction Survey
Prior to any ground disturbance related to covered activities that occurs during the nesting season (March 15– September 15), a qualified biologist will conduct a preconstruction survey no more than 1 month prior to construction to establish whether Swainson’s hawk nests within 1,000 feet of the project site are occupied. If potentially occupied nests within 1,000 feet are off the project site, then their occupancy will be determined by observation from public roads or by observations of Swainson’s hawk activity (e.g., foraging) near the project site. If nests are occupied, minimization measures and construction monitoring are required (see below).
Avoidance and Minimization and Construction Monitoring
During the nesting season (March 15–September 15), covered activities within 1,000 feet of occupied nests or nests under construction will be prohibited to prevent nest abandonment. If site-specific conditions or the nature of the covered activity (e.g., steep topography, dense vegetation, limited activities) indicate that a smaller buffer could be used, the Implementing Entity will coordinate with CDFW/USFWS to determine the appropriate buffer size.
If young fledge prior to September 15, covered activities can proceed normally. If the active nest site is shielded from view and noise from the project site by other development, topography, or other features, the project applicant can apply to the Implementing Entity for a waiver of this avoidance measure. Any waiver must also be approved by USFWS and CDFW. While the nest is occupied, activities outside the buffer can take place.
All active nest trees will be preserved on site, if feasible. Nest trees, including non-native trees, lost to covered activities will be mitigated by the project proponent according to the requirements below.
Mitigation for Loss of Nest Trees
The loss of non-riparian Swainson’s hawk nest trees will be mitigated by the project proponent by:
• If feasible on-site, planting 15 saplings for every tree lost with the objective of having at least 5 mature trees established for every tree lost according to the requirements listed below.
AND either
1) Pay the Implementing Entity an additional fee to purchase, plant, maintain, and monitor 15 saplings on the HCP/NCCP Preserve System for every tree lost according to the requirements listed below, OR 2) The project proponent will plant, maintain, and monitor 15 saplings for every tree lost at a site to be approved by the Implementing Entity (e.g., within an HCP/NCCP Preserve or existing open space linked to HCP/NCCP preserves), according to the requirements listed below.
The following requirements will be met for all planting options:
• Tree survival shall be monitored at least annually for 5 years, then every other year until year 12. All trees lost during the first 5 years will be replaced. Success will be reached at the end of 12 years if at least 5 trees per tree lost survive without supplemental irrigation or protection from herbivory. Trees must also survive for at least three years without irrigation.
• Irrigation and fencing to protect from deer and other herbivores may be needed for the first several years to ensure maximum tree survival.
• Native trees suitable for this site should be planted. When site conditions permit, a variety of native trees will be planted for each tree lost to provide trees with different growth rates, maturation, and life span, and to provide a variety of tree canopy structures for Swainson’s hawk. This variety will help to ensure that nest trees will be available in the short term (5-10 years for cottonwoods and willows) and in the long term (e.g., Valley oak, sycamore). This will also minimize the temporal loss of nest trees. • Riparian woodland restoration conducted as a result of covered activities (i.e., loss of riparian woodland) can be used to offset the nest tree planting requirement above, if the nest trees are riparian species. • Whenever feasible and when site conditions permit, trees should be planted in clumps together or with existing trees to provide larger areas of suitable nesting habitat and to create a natural buffer between nest trees and adjacent development (if plantings occur on the development site). 674
Planning Survey Report Form, Revised July 2015
• Whenever feasible, plantings on the site should occur closest to suitable foraging habitat outside the UDA. • Trees planted in the HCP/NCCP preserves or other approved offsite location will occur within the known range of Swainson’s hawk in the inventory area and as close as possible to high-quality foraging habitat. 3) Construction Monitoring Plan
Before implementing a covered activity, the applicant will develop and submit a construction monitoring plan to the planning department of the local land use jurisdiction and the East Contra Costa County Habitat Conservancy for review and approval. Elements of a brief construction monitoring plan will include the following:
• Results of planning and preconstruction surveys.11
• Description of avoidance and minimization measures to be implemented, including a description of project-specific refinements to the measures or additional measures not included in the HCP/NCCP. • Description of monitoring activities, including monitoring frequency and duration, and specific activities to be monitored.
• Description of the onsite authority of the construction monitor to modify implementation of the activity.
Check box to acknowledge this requirement.
11 If the preconstruction surveys do not trigger construction monitoring, results of preconstruction surveys should still be submitted to the local jurisdiction and the East Contra Costa County Habitat Conservancy.
675
Planning Survey Report Form, Revised July 2015
V. SPECIFIC CONDITIONS ON COVERED ACTIVITIES
1) Check off the HCP conservation measures that apply to the project.
APPLIES TO ALL PROJECTS
Conservation Measure 1.11. Avoid Direct Impacts on Extremely Rare Plants, Fully Protected Wildlife Species, or Migratory Birds. This conservation measure applies to all projects. All projects will avoid all impacts on extremely rare plants and fully protected species listed in Table 6-5 of the ECCC HCP/NCCP. See HCP pp. 6-23 to 6-25, and Table 6-5.
APPLIES TO PROJECTS THAT IMPACT COVERED PLANT SPECIES
Conservation Measure 3.10. Plant Salvage when Impacts are Unavoidable. This condition applies to projects that cannot avoid impacts on covered plants and help protect covered plants by prescribing salvage whenever avoidance of impacts is not feasible. Project proponents wishing to remove populations of covered plants must notify the Conservancy of their construction schedule to allow the Conservancy the option of salvaging the populations. See HCP pp. 6-48 to 6-50.
APPLIES TO PROJECTS THAT INCLUDE ARE ADJACENT TO STREAMS, PONDS, OR WETLANDS Conservation Measure 2.12. Wetland, Pond, and Stream Avoidance and Minimization. All projects will implement measures described in the HCP to avoid and minimize impacts on wetlands, ponds, streams, and riparian woodland/scrub. See HCP pp. 6-33 to 6-35.
APPLIES TO NEW DEVELOPMENT PROJECTS
Conservation Measure 1.10. Maintain Hydrologic Conditions and Minimize Erosion. All new development must avoid or minimize direct and indirect impacts on local hydrological conditions and erosion by incorporating the applicable Provision C.3 Amendments of the Contra Costa County Clean Water Program’s (CCCCWP’s) amended NPDES Permit (order no. R2-2003-0022; permit no. CAS002912). The overall goal of this measure is to ensure that new development covered under the HCP has no or minimal adverse effects on downstream fisheries to avoid take of fish listed under ESA or CESA. See HCP pp. 6-21 to 6-22.
APPLIES TO NEW DEVELOPMENT PROJECTS THAT INCLUDE OR ARE ADJACENT TO STREAMS, PONDS, OR WETLANDS Conservation Measure 1.7. Establish Stream Setbacks. A stream setback will be applied to all development projects covered by the HCP according to the stream types listed in Table 6-2 of the HCP. See HCP pp. 6-15 to 6-18 and Table 6-2.
APPLIES TO NEW DEVELOPMENT PROJECTS ADJACENT TO EXISTING PUBLIC OPEN SPACE, HCP PRESERVES, OR LIKELY HCP ACQUISITION SITES Conservation Measure 1.6. Minimize Development Footprint Adjacent to Open Space. Project applicants are encouraged to minimize their development footprint and set aside portions of their land to contribute to the HCP Preserve System. Land set aside that contributes to the HCP biological goals and objectives may be credited against development fees. See HCP pages 6-14 to 6-15.
Conservation Measure 1.8. Establish Fuel Management Buffer to Protect Preserves and Property. Buffer zones will provide a buffer between development and wildlands that allows adequate fuel management to minimize the risk of wildlife damage to property or to the preserve. The minimum buffer zone for new development is 100 feet. See HCP pages 6-18 to 6-19.
Conservation Measure 1.9. Incorporate Urban-Wildlife Interface Design Elements. These projects will incorporate design elements at the urban-wildlife interface to minimize the indirect impacts of development on the adjacent preserve. See HCP pp. 6-20 to 6-21.
APPLIES TO ROAD MAINTENANCE PROJECTS OUTSIDE THE UDA
Conservation Measure 1.12. Implement Best Management Practices for Rural Road Maintenance. Road maintenance activities have the potential to affect covered species by introducing sediment and other pollutants into downstream waterways, spreading invasive weeds, and disturbing breeding wildlife. In order to avoid and minimize these impacts, BMPs described in the HCP will be used where appropriate and feasible. See HCP pp. 6-25 to 6-26.
APPLIES TO NEW ROADS OR ROAD IMPROVEMENTS OUTSIDE THE UDA Conservation Measure 1.14. Design Requirements for Covered Roads Outside the Urban Development Area (UDA). New roads or road improvements outside the UDA have impacts on many covered species far beyond the direct impacts of their project footprints. To minimize the impacts of new, expanded, and improved roads in agricultural and natural areas of the inventory area, road and bridge construction projects will adopt siting, design, and construction requirements described in the HCP and listed in Table 6-6. See HCP pp. 6-27 to 6-33 and Table 6-6.
APPLIES TO FLOOD CONTROL MAINTENANCE ACTIVITIES
Conservation Measure 1.13. Implement Best Management Practices for Flood Control Facility Maintenance. Flood control maintenance activities have the potential to affect covered species by introducing sediment and other pollutants into downstream waterways and disturbing breeding wildlife. In order to avoid and minimize these impacts, BMPs described in the HCP will be used where appropriate and feasible. See HCP pp. 6-26 to 6-27.
676
Planning Survey Report Form, Revised July 2015
2) For all checked conservation measures, describe how the project will comply with each measure.
Attach as Attachment C: Project Compliance to HCP Conditions.
VI. MITIGATION MEASURES
1) Mitigation Fee Calculator(s)
Complete and attach the fee calculator (use permanent and/or temporary impact fee calculator as appropriate), and attach as Attachment D: Fee Calculator(s). 2) Briefly describe the amount of fees to be paid and when applicant plans to submit payment.
Fees to be paid are associated with the 9.99 acres of Zone III land. All impacts for the proposed residential development will be permanent. The total fees for permanent impacts to 9.99 acres in a Zone III area equals $97,959.54. The applicant shall submit payment before grading permits are issued. 677
ATTACHMENT A: PROJECT DESCRIPTION
678
The Village at 2092 Oakley Road – HCP Application
Short Project Description – Construction of 83 single family lots, on-site parking, a toddler park, community gathering areas, and other improvements.
Long Project Description:
Attachment A: Project Description. Provide a detailed written description that concisely and completely describes the project and location. Include the following information:
• All activities proposed for the site or project, including roads utilized, construction staging areas, and the installation of underground facilities, to ensure the entire project is covered by the HCP/NCCP permit.
The project site is located at 2092 Oakley Road in the City of Oakley, California. The 9.25-acre parcel (APN 037-110-031) is developed with two single-family residences, one ancillary structure, and one water tower. In addition, a gravel roadway runs along the eastern boundary of the site and provides access to the single-family residence in the northeast corner of the site. The remainder of the parcel is planted with row crops. Surrounding existing uses include a mobile home park to the north; a convenience store, gas station, and an oil change service shop to the east; a shopping center to the southeast, across Empire Avenue; single-family residences and agricultural land to the south, across Oakley Road; and a mobile home park and single-family residences to the west. The project site is located within the East Contra Costa County Habitat Conservation Plan/Natural Community Conservation Plan (HCP/NCCP). The City of Oakley General Plan designates the site as Commercial (CO) and the site is zoned Commercial (C).
The applicant is proposing to remove the existing on-site structures and subdivide the site into 83 single-family residential lots, ranging from 2,920 square feet (sf) to 3,790 sf. The two-story single-family residences will range from 2,277 sf to 2,656 sf and each unit will include four bedrooms and three bathrooms, as well as an attached two-car garage. An additional 83 parking stalls will be provided throughout the project site. The development will include an 8,730-sf community park in the northeast corner of the project site and a 5,840-sf open space area in the southern portion. An internal roadway system will be constructed, consisting of six new streets, and primary site access will be provided by a new driveway off of Oakley Road. Emergency vehicle access will be provided by a new driveway off of Main Street.
The site is currently zoned “C” (General Commercial) and would require a General Plan Amendment (GPA 01-22) to redesignate it from Commercial (CO) to Residential Medium (RM).
A Design Review (DR 07-22) for floor plans and architecture of three home types with three elevations and three color schemes, and landscaping and other improvements throughout the Project.
• Proposed construction dates, including details on construction phases, if applicable Construction is planned to start on ___________
679
• Reference a City/County application number for the project, if applicable – Project plans were submitted to the City of Oakley (GPA 01-22, RZ 03-22, FDP 01-22, TM 04- 22, DR 07-22) last updated December 2, 2022.
• General Best Management Practices, if applicable – During construction, the project will adhere to City and Bay Area Air Quality Management District BMPs and other requirements to ensure temporary impacts associated with grading construction are minimized. Typical BMPs to limit dust, noise, and traffic will be incorporated into the project grading and construction plans.
• If the Project will have temporary impacts, please provide a restoration plan describing how the site will be restored to pre-project conditions, including revegetation seed mixes or plantings and timing – Not Applicable. See attached design plans. 680
ATTACHMENT B: FIGURES
681
I 0 375 750 1,500
Feet
Scale: 1:12,000 1 inch = 1,000 feet
193 Blue Ravine Road, Ste. 165
Folsom, CA 95630
Phone: (916) 985-1188
Figure 1: Project Vicinity Map
2092 Oakley Road Property
Oakley, California
Document Path: E:\Google Drive\Olberding\Oakley Road Property\MXDs\Fig 1 Vicinity Map.mxd Revision Date: 5/9/2023
Property Boundary Print at: 8.5" x 11"
682
Figure 2 - Site Plans
683
OAKLEY ROAD
MAIN STREET
PARCEL A
PARCEL B 1 2 3 4 5 6 7 8 9 10 11 12 13 14
15 16
17 18
19 20
21 22
24 23
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
43 41
45 46
47 48
49 50
51 52
53 54
55 56
57 58
59 60
61 62
65 64
63 66
67 68
69 70
71 72
73 74
75 76
77 78
79 80
81 82
83 OAKLEY ROAD
42 44 A STREET
B STREET
G STREET C STREET D STREET E STREET F STREET
PARCEL A
PARCEL B
PARCEL C
PARCEL D
PARCEL E PARCEL F
PARCEL D
OAKLEY ROAD A STREET
B STREET
G STREET C STREET D STREET E STREET F STREET
684
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15 16
17 18
19 20
21 22
24 23
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
43 41
45 46
47 48
49 50
51 52
53 54
55 56
57 58
59 60
61 62
65 64
63 66
67 68
69 70
71 72
73 74
75 76
77 78
79 80
81 82
83 OAKLEY ROAD
42 44 A STREET
B STREET
G STREET C STREET D STREET E STREET F STREET
PARCEL A
PARCEL B
PARCEL C
PARCEL D
PARCEL E PARCEL F
PARCEL D
VICINITY MAP
685
OAKLEY ROAD
MAIN STREET
D
D
686
F STREET (PRIVATE)
B STREET (PRIVATE) A STREET (PRIVATE)
C STREET (PRIVATE) D & E STREET (PRIVATE)
G STREET (PRIVATE)
687
OAKLEY ROAD (PUBLIC)
MAIN STREET (PUBLIC)
688
OAKLEY ROAD
MAIN STREET
PARCEL B
PARCEL A
PARCEL B
PARCEL C
PARCEL D
PARCEL E PARCEL F
PARCEL D
OAKLEY ROAD A STREET
B STREET
G STREET C STREET D STREET E STREET F STREET SEE THIS SHEET SEE THIS SHEET 689
PARCEL A
PARCEL B
PARCEL C
PARCEL D
PARCEL E PARCEL F
PARCEL D
OAKLEY ROAD
MAIN STREET A STREET
B STREET
G STREET C STREET D STREET E STREET F STREET
690
691
692
MAIN STREET PARCEL D A STREET 6 7 8 9 10 11 12 13 14
OAKLEY ROAD A STREET
693
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15 16
17 18
19 20
21 22
24 23
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
43 41
45 46
47 48
49 50
51 52
53 54
55 56
57 58
59 60
61 62
65 64
63 66
67 68
69 70
71 72
73 74
75 76
77 78
79 80
81 82
83 OAKLEY ROAD
42 44 A STREET
B STREET
G STREET C STREET D STREET E STREET F STREET
PARCEL A
PARCEL B
PARCEL C
PARCEL D
PARCEL E PARCEL F
PARCEL D
MAIN STREET
DMA 1A
118,202 SF
DMA 3A 156,910 SF DMA 3B 6,991 SF
IMP 2
3,294 SF
DMA 10A
1,024 SF
DMA 10B
5,348 SF DMA 11B
11,009 SF DMA 12B
12,534 SF
DMA 11A
2,200 SF DMA 12A
1,781 SF
DMA 1B
11,211 SF
IMP 1
2,748 SF
IMP 3
3,556 SF
DMA 2A 81,299 SF DMA 2B 10,014 SF
DMA 4
6,343 SF
IMP 10
1,023 SF
IMP 11
2,045 SF
IMP 12
1,644 SF
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
PRIMARY
BEDROOM
14'-5" x 14'-0"
PRIMARY
BATH
BEDROOM 2
10'-1" x 11'-0"
BEDROOM 3
10'-1" x 11'-0"
LNDY
BATH 2
DN
LINEN
WALK-IN
CLOSET
WALK-IN
CLOSET
32'-0"
4'-0"
4'-0"
40'-0" 73'-0" 6'-2" 4'-0" 52'-4" 11'-8" 5'-0"
2-BAY GARAGE
20'-5" x 20'-1"
KITCHEN
DINING
14'-5" x 7'-0"
FAMILY
16'-5" x 14'-3"
BEDROOM 4
10'-1" x 10'-1"
ENTRY
BATH 3
PORCH
LINEN
PANTRY
UP 15'-8" 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
SQUARE FOOTAGES
FIRST FLOOR
SECOND FLOOR
TOTAL LIVING
2-BAY GARAGE
892 SQ. FT.
956 SQ. FT.
1848 SQ. FT.
429 SQ. FT.
SECOND FLOOR PLAN FIRST FLOOR PLAN
0 1' 2' 3' 4' 8'
PLAN 1 SPANISH FLOOR PLANS
A03
717
4 :12
5 :12
5 :12
5 :12
V.
4 :12 RIDGE
4 :12
4 :12
4 :12 4 :12
VALLEY
VALLEY
RIDGE
RIDGE RIDGE RIDGE
4 :12
4 :12 4 :12 RIDGE
VALLEY
VALLEY 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
SPANISH ROOF PLAN
0 1' 2' 3' 4' 8'
PLAN 1 SPANISH ROOF PLAN
A04
718
719
PRIMARY
BEDROOM
14'-5" x 14'-0"
PRIMARY
BATH
BEDROOM 2
10'-1" x 11'-0"
BEDROOM 3
10'-1" x 11'-0"
LNDY
BATH 2
DN
LINEN
32'-0"
4'-0"
4'-0"
40'-0" 73'-0" 10'-2" 52'-4" 11'-8" 5'-0"
2-BAY GARAGE
20'-5" x 20'-1"
KITCHEN
DINING
14'-5" x 7'-0"
FAMILY
16'-5" x 14'-3"
BEDROOM 4
10'-1" x 10'-1"
ENTRY
BATH 3
PORCH
LINEN
PANTRY
UP 15'-8" 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
SQUARE FOOTAGES
FIRST FLOOR
SECOND FLOOR
TOTAL LIVING
2-BAY GARAGE
892 SQ. FT.
956 SQ. FT.
1848 SQ. FT.
429 SQ. FT.
SECOND FLOOR PLAN FIRST FLOOR PLAN
0 1' 2' 3' 4' 8'
PLAN 1 BUNGALOW FLOOR PLANS
A06
720
4 :12
5 :12
5 :12
5 :12
HIP
4 :12 RIDGE
4 :12
4 :12
4 :12 4 :12
VALLEY
VALLEY
RIDGE
RIDGE RIDGE RIDGE
4 :12
4 :12 4 :12 RIDGE
VALLEY
VALLEY
VALLEY 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
BUNGALOW ROOF PLAN
0 1' 2' 3' 4' 8'
PLAN 1 BUNGALOW ROOF PLAN
A07
721
722
PRIMARY
BEDROOM
14'-5" x 14'-0"
PRIMARY
BATH
BEDROOM 2
10'-1" x 11'-0"
BEDROOM 3
10'-1" x 11'-0"
LNDY
BATH 2
DN
LINEN
32'-0"
4'-0"
4'-0"
40'-0" 73'-0" 10'-2" 52'-4" 11'-8" 5'-0"
2-BAY GARAGE
20'-5" x 20'-1"
KITCHEN
DINING
14'-5" x 7'-0"
FAMILY
16'-5" x 14'-3"
BEDROOM 4
10'-1" x 10'-1"
ENTRY
BATH 3
PORCH
LINEN
PANTRY
UP 15'-8" 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
SQUARE FOOTAGES
FIRST FLOOR
SECOND FLOOR
TOTAL LIVING
2-BAY GARAGE
892 SQ. FT.
956 SQ. FT.
1848 SQ. FT.
429 SQ. FT.
SECOND FLOOR PLAN FIRST FLOOR PLAN
0 1' 2' 3' 4' 8'
PLAN 1 FARMHOUSE FLOOR PLANS
A09
723
5 :12
5 :12
5 :12
5 :12
5 :12 RIDGE
4 :12
7 :12
VALLEY
RIDGE
RIDGE RIDGE
7 :12
4 :12 4 :12 RIDGE
VALLEY
VALLEY VALLEY
7 :12 RIDGE7 :12
VALLEY
VALLEY 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
FARMHOUSE ROOF PLAN
0 1' 2' 3' 4' 8'
PLAN 1 FARMHOUSE ROOF PLAN
A10
724
725
726
15'-0" 53'-0" 5'-0"
32'-0"
4'-0"
4'-0"
40'-0" 73'-0"
2-BAY GARAGE
21'-1" x 20'-1"
KITCHEN
DINING
9'-10" x 15'-0"
FAMILY
16'-5" x 15'-5"
BEDROOM 4
10'-1" x 10'-4"
ENTRY
BATH 3
PORCH
PANTRY
UP
PRIMARY
BEDROOM
PRIMARY 15'-6" x 13'-8"
BATH
BEDROOM 2
11'-0" x 12'-1"
BEDROOM 3
11'-2" x 11'-3"
LNDY
BATH 2
DN
LINEN
WALK-IN
CLOSET
WALK-IN
CLOSET 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
SECOND FLOOR PLAN FIRST FLOOR PLAN
PLAN 2 SQUARE FOOTAGES
FIRST FLOOR
SECOND FLOOR
TOTAL LIVING
2-BAY GARAGE
1006 SQ. FT.
1077 SQ. FT.
2083 SQ. FT.
441 SQ. FT.
0 1' 2' 3' 4' 8'
PLAN 2 SPANISH FLOOR PLANS
A13
727
4 :12
5 :12
5 :12
V.
4 :12 RIDGE
4 :12
4 :12
4 :12 4 :12
VALLEY
VALLEY
RIDGE RIDGE RIDGE
4 :12
3 :12 3 :12 RIDGE
VALLEY
VALLEY R. 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
SPANISH ROOF PLAN
0 1' 2' 3' 4' 8'
PLAN 2 SPANISH ROOF PLAN
A14
728
729
15'-0" 53'-0" 5'-0"
32'-0"
4'-0"
4'-0"
40'-0" 73'-0"
2-BAY GARAGE
21'-1" x 20'-1"
KITCHEN
DINING
9'-10" x 15'-0"
FAMILY
16'-5" x 15'-5"
BEDROOM 4
10'-1" x 10'-4"
ENTRY
BATH 3
PORCH
PANTRY
UP
PRIMARY
BEDROOM
PRIMARY 15'-6" x 13'-8"
BATH
BEDROOM 2
11'-0" x 12'-1"
BEDROOM 3
11'-2" x 11'-3"
LNDY
BATH 2
DN
LINEN
WALK-IN
CLOSET
WALK-IN
CLOSET 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
SECOND FLOOR PLAN FIRST FLOOR PLAN
PLAN 2 SQUARE FOOTAGES
FIRST FLOOR
SECOND FLOOR
TOTAL LIVING
2-BAY GARAGE
1006 SQ. FT.
1077 SQ. FT.
2083 SQ. FT.
441 SQ. FT.
0 1' 2' 3' 4' 8'
PLAN 2 BUNGALOW FLOOR PLANS
A16
730
4 :12
5 :12
5 :12
V.
4 :12 RIDGE
4 :12
4 :12
4 :12 4 :12
VALLEY
VALLEY
RIDGE RIDGE R.
4 :12
3 :12 3 :12 RIDGE
VALLEY
VALLEY R. RIDGE
4 :12
4 :12 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
BUNGALOW ROOF PLAN
0 1' 2' 3' 4' 8'
PLAN 2 BUNGALOW ROOF PLAN
A17
731
732
15'-0" 53'-0" 5'-0"
32'-0"
4'-0"
4'-0"
40'-0" 73'-0"
2-BAY GARAGE
21'-1" x 20'-1"
KITCHEN
DINING
9'-10" x 15'-0"
FAMILY
16'-5" x 15'-5"
BEDROOM 4
10'-1" x 10'-4"
ENTRY
BATH 3
PORCH
PANTRY
UP
PRIMARY
BEDROOM
PRIMARY 15'-6" x 13'-8"
BATH
BEDROOM 2
11'-0" x 12'-1"
BEDROOM 3
11'-2" x 11'-3"
LNDY
BATH 2
DN
LINEN
WALK-IN
CLOSET
WALK-IN
CLOSET 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
SECOND FLOOR PLAN FIRST FLOOR PLAN
PLAN 2 SQUARE FOOTAGES
FIRST FLOOR
SECOND FLOOR
TOTAL LIVING
2-BAY GARAGE
1006 SQ. FT.
1077 SQ. FT.
2083 SQ. FT.
441 SQ. FT.
0 1' 2' 3' 4' 8'
PLAN 2 FARMHOUSE FLOOR PLANS
A19
733
7 :12
5 :12
5 :12
7 :12 RIDGE
3 :12
7 :12
VALLEY
RIDGE RIDGE
7 :12
3 :12 3 :12 RIDGE
VALLEY R.
VALLEY
VALLEY
7 :12 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
FARMHOUSE ROOF PLAN
0 1' 2' 3' 4' 8'
PLAN 2 FARMHOUSE ROOF PLAN
A20
734
735
736
15'-0" 53'-0"
32'-0" 5'-0"
4'-0"
4'-0"
40'-0" 73'-0"
2-BAY GARAGE
20'-1" x 20'-1"
KITCHEN
NOOK
11'-1" x 11'-1"
FAMILY
15'-6" x 13'-7"
BEDROOM 4 ENTRY 11'-7" x 10'-6"
BATH 3
PANTRY
UP
FLEX
10'-9" x 12'-0"
PORCH
PRIMARY
BEDROOM
12'-9" x 14'-0" PRIMARY
BATH
BEDROOM 2
11'-0" x 11'-10"
BEDROOM 3
13'-6" x 11'-0"
LNDY
BATH 2
DN
LINEN
WALK-IN
CLOSET
LOFT/ OPT.
BEDROOM 5
11'-7" x 13'-0" 399.203 The Village at 2092 Oakley Road Oakley, CA
March 8, 2023
SECOND FLOOR PLAN FIRST FLOOR PLAN
PLAN 3 SQUARE FOOTAGES
FIRST FLOOR
SECOND FLOOR
TOTAL LIVING
2-BAY GARAGE
1095 SQ. FT.
1141 SQ. FT.
2236 SQ. FT.
420 SQ. FT.
0 1' 2' 3' 4' 8'
PLAN 3 SPANISH FLOOR PLANS
A23
737
4 :12
5 :12
5 :12
4 :12
4 :12
4 :12 4 :12
VALLEY
VALLEY
RIDGE RIDGE RIDGE
3 :12
3 :12 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
SPANISH ROOF PLAN
0 1' 2' 3' 4' 8'
PLAN 3 SPANISH ROOF PLAN
A24
738
739
15'-0" 53'-0"
32'-0" 5'-0"
4'-0"
4'-0"
40'-0" 73'-0"
2-BAY GARAGE
20'-1" x 20'-1"
KITCHEN
NOOK
11'-1" x 11'-1"
FAMILY
15'-6" x 13'-7"
BEDROOM 4 ENTRY 11'-7" x 10'-6"
BATH 3
PANTRY
UP
FLEX
10'-9" x 12'-0"
PORCH
PRIMARY
BEDROOM
12'-9" x 14'-0" PRIMARY
BATH
BEDROOM 2
11'-0" x 11'-10"
BEDROOM 3
13'-6" x 11'-0"
LNDY
BATH 2
DN
LINEN
WALK-IN
CLOSET
LOFT/ OPT.
BEDROOM 5
11'-7" x 13'-0" 399.203 The Village at 2092 Oakley Road Oakley, CA
March 8, 2023
SECOND FLOOR PLAN FIRST FLOOR PLAN
PLAN 3 SQUARE FOOTAGES
FIRST FLOOR
SECOND FLOOR
TOTAL LIVING
2-BAY GARAGE
1095 SQ. FT.
1141 SQ. FT.
2236 SQ. FT.
420 SQ. FT.
0 1' 2' 3' 4' 8'
PLAN 3 BUNGALOW FLOOR PLANS
A26
740
5 :12
5 :12
5 :12
5 :12
3 :12 3 :12
VALLEY
RIDGE RIDGE RIDGE
3 :12
3 :12
VALLEY
VALLEY RIDGE VALLEY
4 :12 4 :12 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
BUNGALOW ROOF PLAN
0 1' 2' 3' 4' 8'
PLAN 3 BUNGALOW ROOF PLAN
A27
741
742
15'-0" 53'-0"
32'-0" 5'-0"
4'-0"
4'-0"
40'-0" 73'-0"
2-BAY GARAGE
20'-1" x 20'-1"
KITCHEN
NOOK
11'-1" x 11'-1"
FAMILY
15'-6" x 13'-7"
BEDROOM 4 ENTRY 11'-7" x 10'-6"
BATH 3
PANTRY
UP
FLEX
10'-9" x 12'-0"
PORCH
PRIMARY
BEDROOM
12'-9" x 14'-0" PRIMARY
BATH
BEDROOM 2
11'-0" x 11'-10"
BEDROOM 3
13'-6" x 11'-0"
LNDY
BATH 2
DN
LINEN
WALK-IN
CLOSET
LOFT/ OPT.
BEDROOM 5
11'-7" x 13'-0" 399.203 The Village at 2092 Oakley Road Oakley, CA
March 8, 2023
SECOND FLOOR PLAN FIRST FLOOR PLAN
PLAN 3 SQUARE FOOTAGES
FIRST FLOOR
SECOND FLOOR
TOTAL LIVING
2-BAY GARAGE
1095 SQ. FT.
1141 SQ. FT.
2236 SQ. FT.
420 SQ. FT.
0 1' 2' 3' 4' 8'
PLAN 3 FARMHOUSE FLOOR PLANS
A29
743
5 :12
5 :12
5 :12
5 :12
VALLEY
RIDGE RIDGE RIDGE
3 :12
3 :12
VALLEY
VALLEY
VALLEY
3 :12
7 :12 7 :12 399.203 The Village at 2092 Oakley Road
Oakley, CA
March 8, 2023
FARMHOUSE ROOF PLAN
0 1' 2' 3' 4' 8'
PLAN 3 FARMHOUSE ROOF PLAN
A30
744
745
746
747
I 0 37.5 75 150
Feet
Scale: 1:1,200 1 inch = 100 feet
193 Blue Ravine Road, Ste. 165
Folsom, CA 95630
Phone: (916) 985-1188
Figure 3: Field Verified Land Use Map
2092 Oakley Road Property
Oakley, California
Document Path: E:\Google Drive\Olberding\Oakley Road Property\MXDs\Fig 3 Land Use Map.mxd Revision Date: 5/9/2023
Oakley Road
Main Street
Parcel
Field-Verified Land Use
Vinyard (9.99 ac) Print at: 8.5" x 11"
748
2092 Oakley Road Property – April 27, 2023
1. Panorama of the Property taken from the current residence in the northeast corner of the Property facing west. Rows of grape vines currently occupy the land.
2. View of the Property from the south east corner of the Property near Oakley Road and the adjacent shopping center driveway (7-Eleven).
749
2092 Oakley Road Property – April 27, 2023
3. Rows of grapes with a solitary almond tree on the Property.
4. Property had sandy soils. One of the residences on the Property in the background located along Oakley Road on the south side of the Property.
750
2092 Oakley Road Property – April 27, 2023
5. The second residence on the Property in the northeast corner.
6. Rows of grape vines on the Property facing north towards the mobile home park north of the property. 751
I 0 150 300 600
Feet
Scale: 1:4,800 1 inch = 400 feet
193 Blue Ravine Road, Ste. 165
Folsom, CA 95630
Phone: (916) 985-1188
Figure 5: Planning Survey Species Habitat Map
2092 Oakley Road Property
Oakley, California
Document Path: E:\Google Drive\Olberding\Oakley Road Property\MXDs\Fig 5 Species Survey Map.mxd Revision Date: 5/9/2023
Oakley Road
Main Street Empire Avenue
Parcel
Potential Burrowing Owl Habitat
500-foot buffer
1000-foot buffer Print at: 8.5" x 11"
752
ATTACHMENT C: PROJECT COMPLIANCE TO HCP CONDITIONS
753
Attachment C – Project Compliance to HCP Conditions
East Contra Costa County HCP/NCCP Application
SPECIFIC CONDITIONS ON COVERED ACTIVITIES
1) Check off the HCP conservation measures that apply to the project. 2) For all checked conservation measures, describe how the project will comply with each measure. Attach as Attachment C: Project Compliance to HCP Conditions.
APPLIES TO ALL PROJECTS
Conserva�on Measure 1.11. Avoid Direct Impacts on Extremely Rare Plants, Fully Protected Wildlife Species, or Migratory Birds. This conserva�on measure applies to all projects. All projects will avoid all impacts on extremely rare plants and fully protected species listed in Table 6-5 of the ECCC HCP/NCCP.
See HCP pp. 6-23 to 6-25, and Table 6-5
Response: As indicated on page 14 of the The Village at 2092 Oakley Road HCP Applica�on, there are two applicable Conserva�on Measure, Conserva�on Measure 1.11 and Conserva�on Measure 1.10.
Condi�ons associated with mee�ng Conserva�on Measure 1.11 include protec�on for extremely rare plants and fully protected species listed in Table 6-5 of the ECCC HCP/NCCP. See HCP pp. 6-23 to 6-25, and Table 6-5 of the HCP/NCCP document (htp://www.co.contracosta. ca.us/depart/cd/water/HCP/archive/final-hcp-rev/pdfs/Ch06condi�ons.pdf). There are two avian species that may occur on the proposed project site – western burrowing owl and Swainson’s hawk.
Neither were sighted during a April 2023 biological survey of the site.
During the April 27, 2023 biological survey of the site, the biologist, Richard Lescalleet, conducted a visual survey to search for signs of ac�ve nes�ng by raptors or passerine birds. The survey began from the periphery of the Property where the area was scanned with binoculars for approximately 30 minutes to look for birds leaving or returning to nes�ng sites prior to walking among the trees. Following the sta�onary visual survey, each individual tree was approached for a closer inspec�on to search for nest sites. Trees within 50-feet of the project boundary were also visually inspected for ac�ve bird nests.
If project construc�on-related ac�vi�es would take place during the nes�ng season (February 1 through August 31), preconstruc�on surveys for nes�ng passerine birds and raptors (birds of prey) within the Property and any large trees adjacent to the Property should be conducted by a competent biologist within 14 days prior to the commencement of the tree removal or site grading ac�vi�es. If any bird listed under the Migratory Bird Treaty Act is found to be nes�ng within the project site or within the area of influence, an adequate protec�ve buffer zone should be established by a qualified biologist to protect the nes�ng site. This buffer shall be a minimum of 75 feet from the project ac�vi�es for passerine birds, and a minimum of 200 feet for raptors. The distance shall be determined by a competent biologist based on the site condi�ons (topography, if the nest is in a line of sight of the construc�on and the sensi�vity of the birds nes�ng). The nest site(s) shall be monitored by a competent biologist periodically to see if the bird’s behavior indicates stress caused by construc�on ac�vi�es that may lead to nest abandonment and if the protec�ve buffer needs to be increased. Once the young have fledged and are flying well enough to avoid project construc�on zones (typically by August), the project can proceed without further regard to the nest site(s). 754
APPLIES TO NEW DEVELOPMENT PROJECTS
Conserva�on Measure 1.10. Maintain Hydrologic Condi�ons and Minimize Erosion. All new development must avoid or minimize direct and indirect impacts on local hydrological condi�ons and erosion by incorpora�ng the applicable Provision C.3 Amendments of the Contra Costa County Clean Water Program’s (CCCCWP’s) amended NPDES Permit (order no. R2-2003-0022; permit no. CAS002912).
The overall goal of this measure is to ensure that new development covered under the HCP has no or minimal adverse effects on downstream fisheries to avoid take of fish listed under ESA or CESA. See HCP pp. 6-21 to 6-22.
Response: During construc�on and grading, standard BMPs and SWPPP protocols will be implemented to minimize erosion and storm water pollu�on including the use of silt fence and watles where appropriate.
755
ATTACHMENT D: FEE CALCULATOR(S)
756
ECCC HCP/NCCP 2023 Fee Calculator Worksheet
Permanent Impacts
PROJECT APPLICANT:
PROJECT NAME:
APN(s):
JURISDICTION:
DATE:
DEVELOPMENT FEE
PERMANENT IMPACTS
(ACRES)
2023 FEE/ACRE
subject to change 1
Fee Zone 1 x $19,611.52 = $0.00
Fee Zone 2 x $39,223.04 = $0.00
Fee Zone 3 9.99 x $9,805.76 = $97,959.54
Fee Zone 42 x $29,417.28 = $0.00
Development Fee Total = $97,959.54
WETLAND MITIGATION FEE
PERMANENT IMPACTS
(ACRES)
2023 FEE/ACRE
subject to change 1
x $110,667.08 = $0.00
Perennial Wetland x $167,718.29 = $0.00
Seasonal Wetland x $392,489.03 = $0.00
Alkali Wetland x $396,778.59 = $0.00
Ponds x $215,976.51 = $0.00
Aquatic (open water) x $107,988.87 = $0.00
Slough / Channel x $154,206.78 = $0.00
STREAMS
PERMANENT IMPACTS
(LINEAR FEET)
2023 FEE/LINEAR FT
subject to change 1
x $569.07 = $0.00
x $854.23 = $0.00
Wetland Mitigation Fee Total = $0.00
FEE REDUCTION4 Development Fee reduction for land in lieu of fee = Development Fee reduction (up to 33% ) for permanent assessments = Wetland Mitigation Fee reduction for wetland restoration/creation performed by applicant = Reduction Total = $0.00
FINAL FEE CALCULATION6 Development Fee Total $97,959.54 Wetland Mitigation Fee Total + $0.00
Mitigation Fee Subtotal = $97,959.54
+
= $97,959.54
4 Fee reductions must be reviewed and approved by the Conservancy. 6 The Conservancy conducted the periodic fee audit required by the HCP/NCCP in 2023. Action by the County and participating cities is pending, which could result in adjustments to some or all fees 3 Per Chapter 9.3.1 of the HCP/NCCP, for every acre of impact on wetlands, streams, ponds, and riparian woodland/scrub, applicants will pay the appropriate development fee (according to fee zone) towards land acquisition and the conservation program as a whole, as well as a wetland mitigation fee to cover the costs of successful restoration or creation.
Impacts to riparian/scrub, wetlands, ponds,
aquatic, and slough/channel are charged both
a wetland mitigation fee and a development
fee. Please also include these impact acres to
development fee above 3
See appropriate ordinance or HCP/NCCP
Figure 9-1 to determine Fee Zone
March 7, 2023
Contribution to Recovery5
Streams greater than 25 feet wide
TOTAL AMOUNT TO BE PAID
2 Fee Zone 4 is not shown on Figure 9-1 of the HCP/NCCP but refers to the fee applicable to those few covered acitivities located in northeastern Antioch (p. 9-21). 1 Development fees are adjusted annually (no later than March 15 of each year) according to a formula that includes both a Home Price Index (HPI) and a Consumer Price Index (CPI). The Wetland Mitigation Fees are adjusted according to a CPI.
Streams 25 feet wide or less
5 Participating Special Entities (PSEs) are required to pay fees over and above permanent and temporary impact mitigation fees to cover indirect costs of extending permit coverage, including a portion of the costs of the initial preparation of the Plan, and a portion of the costs of conservation actions designed to contribute to species recovery. This amount will be determined in accordance with the Contribution to Recovery Implementation Policy adopted by the Conservancy Governing Board on December 8, 2014.
Riparian woodland / scrub
John D'Ambrosio & Juliann D'Ambrosio, Trustees of the John D'Ambrosio Family Trust The Villages at 2092 Oakley Road Subdivision
037-110-031
May 9, 2023
City of Oakley
757
ATTACHMENT E: WETLAND DELINEATION (if applicable)
758
Appendix C
CNDDB Search Results
759
Query Summary:
Quad IS (Brentwood (3712186) OR Antioch North (3812117) OR Antioch South (3712187) OR Bouldin Island (3812115) OR Jersey Island (3812116) OR Woodward Island (3712185) OR Tassajara (3712177) OR Byron Hot Springs (3712176) OR Clifton Court Forebay (3712175)) AND Other Status CONTAINS (CDFW_FP-Fully Protected OR CDFW_SSC-Species of Special Concern OR CDFW_WL-Watch List) Print Close
CNDDB Element Query Results
Scientific
Name
Common
Name
Taxonomic
Group
Element
Code
Total
Occs
Returned
Occs
Federal
Status
State
Status
Global
Rank
State
Rank
CA
Rare
Plant
Rank
Other
Status Habitats
Agelaius tricolor tricolored
blackbird Birds ABPBXB0020 955 11 None Threatened G1G2 S2 null BLM_SSensitive,
CDFW_SSCSpecies of
Special
Concern,
IUCN_ENEndangered,
USFWS_BCCBirds of
Conservation
Concern
Freshwater
marsh, Marsh &
swamp, Swamp,
Wetland
Ambystoma
californiense
pop. 1
California
tiger
salamander
- central
California
DPS
Amphibians AAAAA01181 1271 213 Threatened Threatened G2G3T3 S3 null CDFW_WLWatch List,
IUCN_VUVulnerable
Cismontane
woodland,
Meadow & seep,
Riparian
woodland,
Valley & foothill
grassland,
Vernal pool,
Wetland
Ammodramus
savannarum
grasshopper
sparrow Birds ABPBXA0020 27 1 None None G5 S3 null
CDFW_SSCSpecies of
Special
Concern,
IUCN_LCLeast Concern
Valley & foothill
grassland
Anniella pulchra
Northern
California
legless
lizard
Reptiles ARACC01020 383 7 None None G3 S2S3 null
CDFW_SSCSpecies of
Special
Concern,
USFS_SSensitive
Chaparral,
Coastal dunes,
Coastal scrub
Antrozous
pallidus pallid bat Mammals AMACC10010 420 1 None None G4 S3 null BLM_SSensitive,
CDFW_SSCSpecies of
Special
Concern,
IUCN_LCLeast
Concern,
USFS_SSensitive
Chaparral,
Coastal scrub,
Desert wash,
Great Basin
grassland, Great
Basin scrub,
Mojavean desert
scrub, Riparian
woodland,
Sonoran desert
scrub, Upper
montane
coniferous
forest, Valley &
foothill
grassland
Aquila
chrysaetos
golden
eagle
Birds ABNKC22010 325 14 None None G5 S3 null BLM_SSensitive, CDF_SSensitive,
CDFW_FPFully
Protected,
CDFW_WLWatch List,
IUCN_LCLeast Concern
Broadleaved
upland forest,
Cismontane
woodland,
Coastal prairie,
Great Basin
grassland, Great
Basin scrub,
Lower montane
coniferous
forest, Pinon &
juniper
woodlands,
Upper montane
coniferous
forest, Valley &
760
foothill
grassland
Archoplites
interruptus
Sacramento
perch Fish AFCQB07010
51 None None G1 S1 null
AFS_THThreatened,
CDFW_SSCSpecies of
Special
Concern,
IUCN_ENEndangered
Aquatic,
Sacramento/San
Joaquin flowing
waters,
Sacramento/San
Joaquin
standing waters
Arizona elegans
occidentalis
California
glossy
snake
Reptiles ARADB01017 2601 None None G5T2 S2 null
CDFW_SSCSpecies of
Special
Concern
null
Athene
cunicularia
burrowing
owl Birds ABNSB10010 201
1 124 None None G4 S3 null
BLM_SSensitive,
CDFW_SSCSpecies of
Special
Concern,
IUCN_LCLeast
Concern,
USFWS_BCCBirds of
Conservation
Concern
Coastal prairie,
Coastal scrub,
Great Basin
grassland, Great
Basin scrub,
Mojavean desert
scrub, Sonoran
desert scrub, Valley & foothill
grassland
Buteo regalis ferruginous
hawk Birds ABNKC19120 107
2 None None G4 S3S4 null
CDFW_WL- Watch List,
IUCN_LCLeast Concern
Great Basin
grassland, Great
Basin scrub,
Pinon & juniper
woodlands, Valley & foothill
grassland
Circus
hudsonius
northern
harrier Birds ABNKC1101
1 542 None None G5 S3 null
CDFW_SSCSpecies of
Special
Concern,
IUCN_LCLeast
Concern,
USFWS_BCCBirds of
Conservation
Concern
Coastal scrub,
Great Basin
grassland,
Marsh & swamp,
Riparian scrub, Valley & foothill
grassland, Wetland
Elanus leucurus white-tailed
kite Birds ABNKC06010 184
7 None None G5 S3S4 null
BLM_SSensitive,
CDFW_FPFully
Protected,
IUCN_LCLeast Concern
Cismontane
woodland,
Marsh & swamp,
Riparian
woodland, Valley & foothill
grassland, Wetland
Emys
marmorata
western
pond turtle Reptiles ARAAD02030 1424 61 None None G3G4 S3 null BLM_SSensitive,
CDFW_SSCSpecies of
Special
Concern,
IUCN_VU- Vulnerable,
USFS_SSensitive
Aquatic, Artificial
flowing waters,
Klamath/North
coast flowing
waters,
Klamath/North
coast standing
waters, Marsh &
swamp,
Sacramento/San
Joaquin flowing
waters,
Sacramento/San
Joaquin
standing waters,
South coast
flowing waters,
South coast
standing waters, Wetland
Eremophila
alpestris actia
California
horned lark Birds ABPAT0201
1 945 None None G5T4Q S4 null
CDFW_WL- Watch List,
IUCN_LCLeast Concern
Marine intertidal
& splash zone
communities,
Meadow & seep
Falco mexicanus prairie
falcon
Birds ABNKD06090 4515 None None G5 S4 null CDFW_WL- Watch List, IUCN_LCLeast Concern
Great Basin
grassland, Great
Basin scrub,
Mojavean desert
scrub, Sonoran
desert scrub,
761
Valley & foothill
grassland
Falco peregrinus
anatum
American
peregrine
falcon
Birds ABNKD06071 731 Delisted Delisted G4T4 S3S4 null
CDF_SSensitive,
CDFW_FPFully
Protected
null
Geothlypis
trichas sinuosa
saltmarsh
common
yellowthroat
Birds ABPBX1201A1124 None None G5T3 S3 null
CDFW_SSCSpecies of
Special
Concern,
USFWS_BCCBirds of
Conservation
Concern
Marsh & swamp
Lanius
ludovicianus
loggerhead
shrike Birds ABPBR01030
1102 None None G4 S4 null
CDFW_SSCSpecies of
Special
Concern,
IUCN_NTNear
Threatened
Broadleaved
upland forest,
Desert wash,
Joshua tree
woodland,
Mojavean desert
scrub, Pinon &
juniper
woodlands,
Riparian
woodland,
Sonoran desert
scrub
Lasiurus frantzii western red
bat Mammals AMACC05080 128
2 None None G4 S3 null
CDFW_SSCSpecies of
Special
Concern,
IUCN_LCLeast Concern
Cismontane
woodland,
Lower montane
coniferous
forest, Riparian
forest, Riparian
woodland
Laterallus
jamaicensis
coturniculus
California
black rail Birds ABNME03041 303 22 None Threatened G3T1 S2 null BLM_SSensitive,
CDFW_FPFully
Protected,
IUCN_ENEndangered
Brackish marsh,
Freshwater
marsh, Marsh &
swamp, Salt
marsh, Wetland
Masticophis
flagellum
ruddocki
San Joaquin
coachwhip Reptiles ARADB21021 96
1 None None G5T2T3 S3 null
CDFW_SSCSpecies of
Special
Concern
Chenopod
scrub, Valley &
foothill
grassland
Melospiza
melodia
maxillaris
Suisun song
sparrow Birds ABPBXA301K 36
6 None None G5T3 S3 null
CDFW_SSCSpecies of
Special
Concern
Marsh & swamp, Wetland
Melospiza
melodia pop. 1
song
sparrow
("Modesto"
population)
Birds ABPBXA3013 92 31 None None G5T3?Q S3? null
CDFW_SSCSpecies of
Special
Concern
Artificial flowing
waters,
Freshwater
marsh, Riparian
forest, Riparian
scrub, Riparian
woodland,
Sacramento/San
Joaquin flowing
waters,
Sacramento/San
Joaquin
standing waters
Nannopterum
auritum
doublecrested
cormorant
Birds ABNFD01020 391 None None G5 S4 null
CDFW_WL- Watch List,
IUCN_LCLeast Concern
Riparian forest,
Riparian scrub,
Riparian
woodland
Neotoma
fuscipes
annectens
San
Francisco
duskyfooted
woodrat
Mammals AMAFF08082 421 None None G5T2T3 S2S3 null
CDFW_SSCSpecies of
Special
Concern
Chaparral,
Redwood
Phrynosoma
blainvillii
coast
horned
lizard
Reptiles ARACF12100 7841 None None G4 S4 null BLM_SSensitive, CDFW_SSCSpecies of
Special
Concern,
IUCN_LCLeast Concern
Chaparral,
Cismontane
woodland,
Coastal bluff
scrub, Coastal
scrub, Desert
wash, Pinon &
juniper
woodlands,
Riparian scrub,
Riparian
762
woodland,
Valley & foothill
grassland
Rana draytonii
California
red-legged
frog
Amphibians AAABH01022 1685 184 Threatened None G2G3 S2S3 null CDFW_SSCSpecies of
Special
Concern,
IUCN_VUVulnerable
Aquatic, Artificial
flowing waters,
Artificial
standing waters,
Freshwater
marsh, Marsh &
swamp, Riparian
forest, Riparian
scrub, Riparian
woodland,
Sacramento/San
Joaquin flowing
waters,
Sacramento/San
Joaquin
standing waters,
South coast
flowing waters,
South coast
standing waters,
Wetland
Reithrodontomys
raviventris
salt-marsh
harvest
mouse
Mammals AMAFF02040 144 7 Endangered Endangered G1G2 S1S2 null CDFW_FPFully
Protected,
IUCN_ENEndangered
Marsh & swamp,
Wetland
Taxidea taxus American
badger
Mammals AMAJF04010 594 11 None None G5 S3 null CDFW_SSCSpecies of Special
Concern,
IUCN_LCLeast Concern
Alkali marsh,
Alkali playa,
Alpine, Alpine
dwarf scrub,
Bog & fen,
Brackish marsh,
Broadleaved
upland forest,
Chaparral,
Chenopod
scrub,
Cismontane
woodland,
Closed-cone
coniferous
forest, Coastal
bluff scrub,
Coastal dunes,
Coastal prairie,
Coastal scrub,
Desert dunes,
Desert wash,
Freshwater
marsh, Great
Basin grassland,
Great Basin
scrub, Interior
dunes, Ione
formation,
Joshua tree
woodland,
Limestone,
Lower montane
coniferous
forest, Marsh &
swamp,
Meadow & seep,
Mojavean desert
scrub, Montane
dwarf scrub,
North coast
coniferous
forest,
Oldgrowth,
Pavement plain,
Redwood,
Riparian forest,
Riparian scrub,
Riparian
woodland, Salt
marsh, Sonoran
desert scrub,
Sonoran thorn
woodland,
Ultramafic,
Upper montane
coniferous
forest, Upper
763
Sonoran scrub,
Valley & foothill
grassland
764
Query Summary:
Quad IS (Brentwood (3712186) OR Antioch North (3812117) OR Antioch South (3712187) OR Bouldin Island (3812115) OR Jersey Island (3812116) OR Woodward Island (3712185) OR Tassajara (3712177) OR Byron Hot Springs (3712176) OR Clifton Court Forebay (3712175)) AND CA Rare Plant Rank IS (1A OR 1B OR 1B.1 OR 1B.2 OR 1B.3 OR 2A OR 2B OR 2B.1 OR 2B.2 OR 2B.3) Print Close
CNDDB Element Query Results
Scientific
Name
Common
Name
Taxonomic
Group
Element
Code
Total
Occs
Returned
Occs
Federal
Status
State
Status
Global
Rank
State
Rank
CA
Rare
Plant
Rank
Other
Status Habitats
Amsinckia
grandiflora
large-flowered
fiddleneck Dicots PDBOR01050 9 4 Endangered Endangered G1 S1 1B.1 SB_UCBG-UC
Botanical Garden at
Berkeley
Cismontane
woodland,
Valley &
foothill
grassland
Arctostaphylos
auriculata
Mt. Diablo
manzanita Dicots PDERI04040 17 10 None None G2 S2 1B.3 SB_UCSC-UCSanta Cruz Chaparral,
Cismontane
woodland
Arctostaphylos
manzanita ssp.
laevigata
Contra Costa
manzanita Dicots PDERI04273 10 2 None None G5T2 S2 1B.2 SB_UCSC-UCSanta Cruz Chaparral Astragalus tener
var. tener
alkali milkvetch Dicots PDFAB0F8R1 65 4 None None G2T1 S1 1B.2 SB_UCSC-UC Santa Cruz
Alkali playa,
Valley &
foothill
grassland,
Vernal pool,
Wetland
Atriplex
cordulata var.
cordulata
heartscale Dicots PDCHE040B0 66 2 None None G3T2 S2 1B.2 BLM_S-Sensitive Chenopod
scrub,
Meadow &
seep, Valley
& foothill
grassland
Atriplex
depressa brittlescale Dicots PDCHE042L0 60 11 None None G2 S2 1B.2 null Alkali playa,
Chenopod
scrub,
Meadow &
seep, Valley
& foothill
grassland,
Vernal pool,
Wetland
Atriplex
minuscula
lesser
saltscale Dicots PDCHE042M0 52 1 None None G2 S2 1B.1
SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Alkali playa,
Chenopod
scrub,
Valley &
foothill
grassland
Blepharizonia
plumosa big tarplant Dicots PDAST1C011 53 24 None None G1G2 S1S2 1B.1 SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Valley &
foothill
grassland
Brasenia
schreberi watershield Dicots PDCAB01010 43 1 None None G5 S3 2B.3 IUCN_LC-LeastConcern Marsh &
swamp,
Wetland
Calochortus
pulchellus
Mt. Diablo
fairy-lantern Monocots PMLIL0D160 52 16 None None G2 S2 1B.2 SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Chaparral,
Cismontane
woodland,
Riparian
woodland,
Valley &
foothill
grassland
Carex comosa bristly sedge Monocots PMCYP032Y0 31 1 None None G5 S2 2B.1 IUCN_LC-Least Concern
Coastal
prairie,
Freshwater
marsh,
Marsh &
swamp,
Valley &
foothill
grassland,
Wetland
765
Centromadia
parryi ssp.
congdonii
Congdon's
tarplant Dicots PDAST4R0P1 96 10 None None G3T2 S2 1B.1 BLM_S-Sensitive,
SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Valley &
foothill
grassland
Chloropyron
molle ssp. molle
soft salty
bird's-beak Dicots PDSCR0J0D2 27
1 Endangered Rare G2T1 S1 1B.2
SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Marsh &
swamp, Salt
marsh, Wetland
Cicuta maculata
var. bolanderi
Bolander's
waterhemlockDicots PDAPI0M051 173 None None G5T4T5 S2? 2B.1 SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Marsh &
swamp, Salt
marsh, Wetland
Cryptantha
hooveri
Hoover's
cryptantha Dicots PDBOR0A190
41 None None GH SH 1A null
Interior
dunes, Valley &
foothill
grassland
Delphinium
recurvatum
recurved
larkspur Dicots PDRAN0B1J0
1194 None None G2? S2? 1B.2
BLM_S-Sensitive,
SB_SBBG-Santa
Barbara Botanic
Garden
Chenopod
scrub,
Cismontane
woodland, Valley &
foothill
grassland
Downingia
pusilla
dwarf
downingia Dicots PDCAM060C0 132
2 None None GU S2 2B.2 null
Valley &
foothill
grassland, Vernal pool, Wetland
Eriogonum
nudum var.
psychicola
Antioch
Dunes
buckwheat
Dicots PDPGN0849Q11 None None G5T1 S1 1B.1 null Interior dunes
Eriogonum
truncatum
Mt. Diablo
buckwheat Dicots PDPGN085Z0
73 None None G1 S1 1B.1
SB_UCBG-UC
Botanical Garden at
Berkeley
Chaparral,
Coastal
scrub, Valley &
foothill
grassland
Eryngium
jepsonii
Jepson's
coyote-thistle Dicots PDAPI0Z130 19
1 None None G2 S2 1B.2
SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Valley &
foothill
grassland, Vernal pool
Eryngium
racemosum
Delta buttoncelery Dicots PDAPI0Z0S0 26
1 None Endangered G1 S1 1B.1 null
Riparian
scrub, Wetland
Eryngium
spinosepalum
spiny-sepaled
button-celery Dicots PDAPI0Z0Y0 108
1 None None G2 S2 1B.2
BLM_S-Sensitive,
SB_SBBG-Santa
Barbara Botanic
Garden
Valley &
foothill
grassland, Vernal pool, Wetland
Erysimum
capitatum var.
angustatum
Contra Costa
wallflower Dicots PDBRA16052
44 Endangered Endangered G5T1 S1 1B.1
SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Interior
dunes
Eschscholzia
rhombipetala
diamondpetaled
California
poppy
Dicots PDPAP0A0D0 123 None None G1 S1 1B.1
SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden,
SB_UCBG-UC
Botanical Garden at
Berkeley
Valley &
foothill
grassland
Extriplex
joaquinana
San Joaquin
spearscale Dicots PDCHE041F3 127 47 None None G2 S2 1B.2 BLM_S-Sensitive,
SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Alkali playa,
Chenopod
scrub,
Meadow &
seep, Valley
& foothill
grassland
Fritillaria liliacea fragrant
fritillary Monocots PMLIL0V0C0 82
1 None None G2 S2 1B.2
SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden, USFS_SSensitive
Cismontane
woodland,
Coastal
prairie,
Coastal
scrub,
Ultramafic, Valley &
foothill
grassland
Helianthella
castanea
Diablo
helianthella
Dicots PDAST4M020 107 19 None None G2 S2 1B.2 SB_CalBG/RSABGCalifornia/RanchoBroadleaved upland
forest,
766
Santa Ana Botanic
Garden
Chaparral,
Cismontane
woodland,
Coastal
scrub, Valley &
foothill
grassland
Hesperolinon
breweri
Brewer's
western flax Dicots PDLIN01030 29 12 None None G2 S2 1B.2 null Chaparral,
Cismontane
woodland,
Ultramafic, Valley &
foothill
grassland
Hibiscus
lasiocarpos var.
occidentalis
woolly rosemallow Dicots PDMAL0H0R3 173 60 None None G5T3 S3 1B.2 SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden,
SB_UCBG-UC
Botanical Garden at
Berkeley
Freshwater
marsh,
Marsh &
swamp, Wetland
Lasthenia
conjugens
Contra Costa
goldfields Dicots PDAST5L040 36
1 Endangered None G1 S1 1B.1
SB_UCBG-UC
Botanical Garden at
Berkeley
Alkali playa,
Cismontane
woodland, Valley &
foothill
grassland, Vernal pool, Wetland
Lathyrus
jepsonii var.
jepsonii
Delta tule pea Dicots PDFAB250D2 133 38 None None G5T2 S2 1B.2 SB_BerrySB-Berry
Seed Bank,
SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Freshwater
marsh,
Marsh &
swamp, Wetland
Lilaeopsis
masonii
Mason's
lilaeopsis Dicots PDAPI19030 198
119 None Rare G2 S2 1B.1 null
Freshwater
marsh,
Marsh &
swamp,
Riparian
scrub, Wetland
Limosella
australis
Delta
mudwort Dicots PDSCR10030 59 45 None None G4G5 S2 2B.1 null Brackish
marsh,
Freshwater
marsh,
Marsh &
swamp,
Riparian
scrub, Wetland
Madia radiata showy golden
madia Dicots PDAST650E0 100
2 None None G3 S3 1B.1
BLM_S-Sensitive,
SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden, SB_SBBGSanta Barbara
Botanic Garden
Cismontane
woodland, Valley &
foothill
grassland
Malacothamnus
hallii
Hall's bushmallow Dicots PDMAL0Q0F0 46
1 None None G2 S2 1B.2
BLM_S-Sensitive,
SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Chaparral,
Coastal
scrub,
Ultramafic
Navarretia
nigelliformis ssp.
radians
shining
navarretia Dicots PDPLM0C0J2 102
4 None None G4T2 S2 1B.2 BLM_S-Sensitive
Cismontane
woodland, Valley &
foothill
grassland, Vernal pool, Wetland
Oenothera
deltoides ssp.
howellii
Antioch
Dunes
eveningprimrose
Dicots PDONA0C0B4 109 Endangered Endangered G5T1 S1 1B.1 SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden,
SB_UCBG-UC
Botanical Garden at
Berkeley
Interior
dunes
Plagiobothrys
hystriculus
bearded
popcornflower Dicots PDBOR0V0H0 15
1 None None G2 S2 1B.1 null
Valley &
foothill
grassland, Vernal pool, Wetland
767
Potamogeton
zosteriformis
eel-grass
pondweed Monocots PMPOT03160 20 1 None None G5 S3 2B.2 null Marsh &
swamp,
Wetland
Puccinellia
simplex
California
alkali grass Monocots PMPOA53110 80 6 None None G2 S2 1B.2 BLM_S-Sensitive Chenopod
scrub,
Meadow &
seep, Valley
& foothill
grassland,
Vernal pool
Scutellaria
galericulata
marsh
skullcap Dicots PDLAM1U0J0 39 3 None None G5 S2 2B.2 null Lower
montane
coniferous
forest,
Marsh &
swamp,
Meadow &
seep,
Wetland
Scutellaria
lateriflora
side-flowering
skullcap Dicots PDLAM1U0Q0 13 1 None None G5 S2 2B.2 IUCN_LC-LeastConcern Marsh &
swamp,
Meadow &
seep,
Wetland
Senecio
aphanactis
chaparral
ragwort Dicots PDAST8H060 98 2 None None G3 S2 2B.2
SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden, SB_CRESSan Diego Zoo
CRES Native Gene
Seed Bank
Chaparral,
Cismontane
woodland,
Coastal
scrub
Sidalcea keckii Keck's
checkerbloom Dicots PDMAL110D0 50 1 Endangered None G2 S2 1B.1 SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Cismontane
woodland,
Ultramafic,
Valley &
foothill
grassland
Spergularia
macrotheca var.
longistyla
long-styled
sand-spurrey Dicots PDCAR0W062 22 9 None None G5T2 S2 1B.2 null Marsh &
swamp,
Meadow &
seep
Symphyotrichum
lentum
Suisun Marsh
aster Dicots PDASTE8470 175 73 None None G2 S2 1B.2
SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden, SB_USDAUS Dept of
Agriculture
Brackish
marsh,
Freshwater
marsh,
Marsh &
swamp,
Wetland
Tropidocarpum
capparideum
caper-fruited
tropidocarpum Dicots PDBRA2R010 20 8 None None G1 S1 1B.1 SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden, USFS_SSensitive
Valley &
foothill
grassland
Viburnum
ellipticum
oval-leaved
viburnum Dicots PDCPR07080 39 2 None None G4G5 S3? 2B.3 null Chaparral,
Cismontane
woodland,
Lower
montane
coniferous
forest
768
Query Summary:
Quad IS (Brentwood (3712186) OR Antioch North (3812117) OR Antioch South (3712187) OR Bouldin Island (3812115) OR Jersey Island (3812116) OR Woodward Island (3712185) OR Tassajara (3712177) OR Byron Hot Springs (3712176) OR Clifton Court Forebay (3712175)) AND Federal Listing Status IS (Endangered OR Threatened OR Proposed Endangered OR Proposed Threatened OR Candidate) OR State Listing Status IS (Endangered OR Threatened OR Candidate Endangered OR Candidate Threatened) Print Close
CNDDB Element Query Results
Scientific
Name
Common
Name
Taxonomic
Group
Element
Code
Total
Occs
Returned
Occs
Federal
Status
State
Status
Global
Rank
State
Rank
CA
Rare
Plant
Rank
Other
Status Habitats
Acipenser
medirostris pop.
1 green
sturgeon -
southern DPS
Fish AFCAA01031 14 2 Threatened None G2T1 S1 null
AFS_VUVulnerable,
IUCN_ENEndangered
Aquatic,
Estuary, Marine
bay,
Sacramento/San
Joaquin flowing
waters
Agelaius tricolor tricolored
blackbird Birds ABPBXB0020 955 11 None Threatened G1G2 S2 null BLM_S-Sensitive,
CDFW_SSCSpecies of Special
Concern,
IUCN_ENEndangered,
USFWS_BCC-Birds
of Conservation
Concern
Freshwater
marsh, Marsh &
swamp, Swamp,
Wetland
Ambystoma
californiense
pop. 1
California
tiger
salamander -
central
California
DPS
Amphibians AAAAA01181 1271 213 Threatened Threatened G2G3T3 S3 null CDFW_WL-Watch
List, IUCN_VUVulnerable
Cismontane
woodland,
Meadow & seep,
Riparian
woodland,
Valley & foothill
grassland,
Vernal pool,
Wetland
Amsinckia
grandiflora
largeflowered
fiddleneck
Dicots PDBOR01050 9 4 Endangered Endangered G1 S1 1B.1
SB_UCBG-UC
Botanical Garden at
Berkeley
Cismontane
woodland,
Valley & foothill
grassland
Apodemia
mormo langei
Lange's
metalmark
butterfly
Insects IILEPH7012 1 1 Endangered None G5T1 S1 null null Interior dunes Bombus crotchii Crotch
bumble bee Insects IIHYM24480 437 1 None CandidateEndangered G2 S2 null IUCN_ENEndangered null Bombus
occidentalis
western
bumble bee Insects IIHYM24252 306 4 None CandidateEndangered G3 S1 null IUCN_VUVulnerable,
USFS_S-Sensitive
null
Branchinecta
conservatio
Conservancy
fairy shrimp Crustaceans ICBRA03010 53 1 Endangered None G2 S2 null IUCN_ENEndangered Valley & foothill
grassland,
Vernal pool,
Wetland
Branchinecta
longiantenna
longhorn fairy
shrimp Crustaceans ICBRA03020 23 5 Endangered None G1 S2 null IUCN_ENEndangered Valley & foothill
grassland,
Vernal pool,
Wetland
Branchinecta
lynchi
vernal pool
fairy shrimp Crustaceans ICBRA03030 796 21 Threatened None G3 S3 null IUCN_VUVulnerable Valley & foothill
grassland,
Vernal pool,
Wetland
Buteo swainsoni Swainson's
hawk Birds ABNKC19070 2561 71 None Threatened G5 S4 null BLM_S-Sensitive,
IUCN_LC-Least
Concern
Great Basin
grassland,
Riparian forest,
Riparian
woodland,
Valley & foothill
grassland
Chloropyron
molle ssp. molle
soft salty
bird's-beak Dicots PDSCR0J0D2 27 1 Endangered Rare G2T1 S1 1B.2 SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Marsh & swamp,
Salt marsh,
Wetland
Eryngium
racemosum
Delta buttoncelery Dicots PDAPI0Z0S0 26 1 None Endangered G1 S1 1B.1 null Riparian scrub, Wetland
Erysimum
capitatum var.
angustatum
Contra Costa
wallflower
Dicots PDBRA16052 4 4 Endangered Endangered G5T1 S1 1B.1 SB_CalBG/RSABGCalifornia/RanchoInterior dunes 769
Santa Ana Botanic
Garden
Hypomesus
transpacificus Delta smelt Fish AFCHB01040 29 12 Threatened Endangered G1 S1 null AFS_THThreatened,
IUCN_CR-Critically
Endangered
Aquatic, Estuary
Lasthenia
conjugens
Contra Costa
goldfields Dicots PDAST5L040 36 1 Endangered None G1 S1 1B.1 SB_UCBG-UC
Botanical Garden at
Berkeley
Alkali playa,
Cismontane
woodland,
Valley & foothill
grassland,
Vernal pool,
Wetland
Laterallus
jamaicensis
coturniculus
California
black rail Birds ABNME03041 303 22 None Threatened G3T1 S2 null BLM_S-Sensitive,
CDFW_FP-Fully
Protected,
IUCN_ENEndangered
Brackish marsh,
Freshwater
marsh, Marsh &
swamp, Salt
marsh, Wetland
Lepidurus
packardi
vernal pool
tadpole
shrimp
Crustaceans ICBRA10010 330 2 Endangered None G4 S3 null IUCN_ENEndangered Valley & foothill
grassland,
Vernal pool,
Wetland
Masticophis
lateralis
euryxanthus
Alameda
whipsnake Reptiles ARADB21031 167 18 Threatened Threatened G4T2 S2 null null Chaparral,
Cismontane
woodland,
Coastal scrub,
Valley & foothill
grassland
Oenothera
deltoides ssp.
howellii
Antioch
Dunes
eveningprimrose
Dicots PDONA0C0B4 10 9 Endangered Endangered G5T1 S1 1B.1 SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden,
SB_UCBG-UC
Botanical Garden at
Berkeley
Interior dunes
Oncorhynchus
mykiss irideus
pop. 11
steelhead -
Central Valley
DPS
Fish AFCHA0209K 31 2 Threatened None G5T2Q S2 null AFS_THThreatened Aquatic,
Sacramento/San
Joaquin flowing
waters
Rana boylii pop.
4 foothill
yellow-legged
frog - central
coast DPS
Amphibians AAABH01054 178 1
Proposed
Threatened Endangered G3T2 S2 null BLM_S-Sensitive,USFS_S-Sensitive Aquatic,
Riparian forest,
Riparian scrub,
Riparian
woodland, South
coast flowing
waters
Rana draytonii
California
red-legged
frog
Amphibians AAABH01022 1685 184 Threatened None G2G3 S2S3 null CDFW_SSCSpecies of Special
Concern,
IUCN_VUVulnerable
Aquatic, Artificial
flowing waters,
Artificial
standing waters,
Freshwater
marsh, Marsh &
swamp, Riparian
forest, Riparian
scrub, Riparian
woodland,
Sacramento/San
Joaquin flowing
waters,
Sacramento/San
Joaquin
standing waters,
South coast
flowing waters,
South coast
standing waters,
Wetland
Reithrodontomys
raviventris
salt-marsh
harvest
mouse
Mammals AMAFF02040 144 7 Endangered Endangered G1G2 S1S2 null CDFW_FP-Fully
Protected,
IUCN_ENEndangered
Marsh & swamp,
Wetland
Riparia riparia bank swallow Birds ABPAU08010 299 1 None Threatened G5 S3 null BLM_S-Sensitive,
IUCN_LC-Least
Concern
Riparian scrub,
Riparian
woodland
Sidalcea keckii Keck's
checkerbloom Dicots PDMAL110D0 50 1 Endangered None G2 S2 1B.1 SB_CalBG/RSABGCalifornia/Rancho
Santa Ana Botanic
Garden
Cismontane
woodland,
Ultramafic,
Valley & foothill
grassland
Spirinchus
thaleichthys longfin smelt Fish AFCHB03010 46 9 Candidate Threatened G5 S1 null IUCN_LC-LeastConcern Aquatic, Estuary Thaleichthys
pacificus eulachon Fish AFCHB04010 10 1 Threatened None G5 S1 null IUCN_LC-LeastConcern Aquatic,
Klamath/North
coast flowing
waters
770
Thamnophis
gigas
giant
gartersnake Reptiles ARADB36150 373 11 Threatened Threatened G2 S2 null IUCN_VUVulnerable Marsh & swamp,
Riparian scrub,
Wetland
Vulpes macrotis
mutica
San Joaquin
kit fox Mammals AMAJA03041 1020 32 Endangered Threatened G4T2 S2 null null Chenopod
scrub, Valley &
foothill
grassland
771
Appendix D
Preliminary Arborist Report
772
Atlas Tree Service, Inc.
Arborist Report
Prepared For: Dan Cosgrnve
Mercantile Systems, Inc.
9040 Brentwood Blvd.
Brentwood, CA 94513
Location: 2092 Oakley Road
Oakley, Ca. 94561
September 15, 2022
On September 12, 2022 Adas T ree Service, Inc. conducted a survey and assessment of the trees on the above referenced properly for future development construction. T hese trees have been tagged with numbered metal disks and assessed using the guide provided in the book "Trees and Development" by Matheny and Clark.
There a.re a total of 16 living trees on this property: 1 Native and 15 Non-Natives.
T he Native tree:
1 Jug/ans nigra. (Black Walnut)
T he Non-Native trees:
2 Pirws radiate (Monterey Pine)
2 Cinnamomum camphora (Camphor)
I Sabal palmetto (Cabbage Palmetto Palm)
3 Marus alba (Fruitless Mulberry)
I Juniperus chinensis (Hollywood Juniper)
3 Prunus dulcis (Almond)
I Pinus pinea (Italian Stone Pine)
1 A cer saccharinum (Silver Maple)
I Pinus halep ensis (Alleppo Pine)
P.O. Box 23343 • Pleasant Hill, CA 94523 · 925-687-3631 · Fax 925-687-2465 · www.atlastreeservice.com 773
Observation/Recommendations:
These trees are listed by species, common name, diameter in inches, conditions and suitability for Preservations. Conditions ranges are 1-5 from Severe Decline to Excellent ratings. All the trees that are listed have a condition of 3 or less with poor location and I recommend removing them. Long term wise, I feel the need for these trees to be removed due to poor location and suitability. None of the trees on this properly are listed on the Registry of Significant Trees. This properly appears to be an old vineyard with two existing residences and out buildings. All of these trees show signs of drought stress and age.
Recommendations:
Two of the Non-Native Pines #7 56 and #7 57 can be preserved. All of the other trees will need to be removed due to their location and or poor conditions.
During construction it is vital that the roots of trees to be preserved be protected. Roots provide 4 vital functions. They anchor the tree and hold it up1ight. They absorb water and nutrients and conduct them to the trunk where they are transported throughout the tree. Roots store water and starch for later use. They also synthesize hormones that act as growth regulators and are used to protect the tree from pathogens and al Limes even animals eating the leaves. Some researchers compare the roots to a brain.
Care should be taken to avoid crushing or tearing roots during grnding or trenching. Many species are also negatively impacted by fill over their root zone and may need measures to avoid this damage. This is best accomplished by establishing a Tree Protection Zone or TPZ. This is a fenced area wherein little or no construction activity is allowed.
Preservation Recommendations:
• Provide protective fencing to establish a TPZ as recommended by the Project Arborist.
Fencing may be specified by city ordinance.
• There should be no activity within the TPZ without prior approval of Project Arborist. • As feasible underground utility lines should be routed so as to avoid possible damage to any trees' roots.
• If necessary trenching within the TPZ should be done by hand or pneumatic tools. Roots less than 3" dia. may be cut cleanly. Roots greater than 3" should be preserved. 774
• If there is to be 1.5' or more of fill over 33%or more of the root zone implement an aeration system approved by the Project Arborist.
• Some trimming may be needed to avoid damage by construction equipment. This work should be done by or under the direction of a Certified Arborist. • T here should be no parking or storing of materials within the TPZ. • Do nol allow concrete washout or dumping of any toxic materials within the TPZ.
By following these recommendations there will be little or no impact to the protected trees.
Dia. In
~ Species Common Name inches Condition Suitability for
Preservat ion
#745 Pinus radiata Monterey Pine 14" 2 Poor/location
#746 Pinus radiata Monterey Pine 14" 2 Poor/location
Cinnamomum
#747 camphora Camphor Multi 10" 3 Poor
Cabbage Palmetto
#748 Sabal palmetto Palm 24" 3 Poor
Cinnamomum
#749 camphora Camphor Multi 8" 3 Poor/location
#750 Marus alba Mulberry Fruitless 29" 3 Poor
#751 Marus alba Mulberry Fruitless 27" 3 Poor
#752 Marus alba Mulberry Fruitless 15" 2 Poor
#753 Juniperus chinensis Hollywood Juniper 8" 2 Poor
#754 Prunus dulcis Almond 26" 2 Poor
#755 Prunus dulcis Almond Multi 6" 2 Poor
Multi
#756 Pinus ha/epensis Alleppo Pine 12",17" 2 Moderate
#757 Pinus pinea Italian Stone Pine 27" 3 Moderate
#758 Prunus du/cis Almond 16" 1 Poor
#759 Jug/ans nigra Black Walnut Multi 8" 1 Poor
#760 Acer saccharin um Silver Maple Multi 12" 2 Poor
775
Condition Rate Overall vigor Canopy Amount of deadwood Historv of Pests density failure
1 Severe <20% Large;major More than Infested
decline
scaffold one scaffold
branches
2 Declining 20-60% Twig and Scaffold Infestation
branch branches of significant
dieback pests
3 Low 60-90% Small twigs Small Minor
branches
4 Good 90-100% Little or None Minor
none
5 Excellent 100% None None None,or
insignificant
If you have any questions you can reach me at my office (925) 687-3631.
Respectfully SubmiUcd,
~~ Jarred Juarez
Certified Arborist
WE-1334-l A
JJ :p1j
Extent of decay
Major-conks
and cavities
One to a few
conks;small
cavities
Present at
pruning wounds
Present at
pruning wounds
Absent
776
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;-- , , , .• , ~ • \ '.._, ,\~ XISTING CONDITIONS AND CONSTRAINTS ~·'
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\. '\',\\~ CONTRA COSTA COUNTY, CAUFORNIA
'" ~·
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TO BC PROT(Clto'
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BELLECCI k ASSOCIATES, INC.
CONCORD, CALIFORNIA
SBPTBJlBER 9, 2022 SCALE, I "=30'
NOTES: -tH[IINIIE(JfOHIIIKIOFU:IIIUJ'l'tl
l'Nlll.lllif"lQIKIMIIS90IIIIIOtMSWI'
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"TPZ"
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777
Appendix E
Historic Evaluation
778
Tom Origer & Associates
Archaeology / Historical Research
www.origer.com P.O. Box 1531, Rohnert Park, California 94927 (707) 584-8200 September 28, 2023
Rod Stinson
Raney Planning and Management, Inc.
1501 Sports Drive, Suite A
Sacramento, CA 95834
Re: The Results of an Historical Evaluation of the Property at 2092 Oakley Road, Oakley, Contra Costa County
Dear Mr. Stinson
Enclosed are the appropriate DPR523 forms which document our research and findings of our historical evaluation of the property 2092 Oakley Road, Oakley. In short, the property is a good example of a small farm/vineyard in the Oakley area that has been used for over 100 years. The property meets Criterion 1 for its association with the viticulture industry in Contra Costa County and the 1936 house meets Criterion 3 as a good example of a Depression-era small, farmhouse. However, the integrity aspects of the property and its surroundings have degraded to the point that it no longer qualifies for inclusion on the California Register of Historic Resources and the property may be released for development.
Please contact us if you have questions.
Sincerely,
Eileen Barrow
Senior Associate
779
PRIMARY RECORD Primary #:
HRI #:
Trinomial:
Other Listings: NRHP Status Code:
Review Code: Reviewer: Date: Resource Name or #: 2092 Oakley Road
P1. Other Identifier:
P2. Location: Unrestricted a. County: Contra Costa
b. USGS 7.5' Quad: Brentwood Date: 1978
T 2 N/R 2 E; SE 1/4 of SE 1/4 of Sec.; 22 MDBM (measured from the NW section corner) c. Address: 2092 Oakley Road City: Oakley Zip: 94561
d. UTM: Zone: 10 611202mE 4206445mN (NAD 83)
e. Other Locational Information: From the center of Oakley, take Highway 4 (Main Street) west for one mile. The property is at the northwest corner of the intersection of Highway 4, Empire Avenue, and Oakley Road.
P3a. Description: The property contains two single-family houses, an outbuilding, and a vineyard. One of the houses was constructed in 1936 and is the subject of this evaluation. The other house was constructed in 1967 and was not considered eligible for inclusion on the California Register of Historic Resources.
The house is a single-story, wood-framed building on a simple rectangular plan. The roof is front-gabled with composite shingles. The cladding is wood and appears to be drop siding with a false bevel. There are no additions to the building.
The façade is asymmetrical with an inset porch on the northeast corner with a gable-roofed extension protruding from the inset. A waist-high wall which encloses the porch is clad in the same siding as the house and the supports are simple posts.
There is a small, decorative vent at the apex of the gable. Description continued on Continuation Sheet, page 2.
P3b. Resource Attributes: HP2. Single Family Property; HP4. Ancillary Building; HP33. Farm P4. Resources Present: Buildings
P5. Photograph or Drawing: P5b. Description of Photo: View of the front of the house, facing west.
P6. Date Constructed/Age
and Sources:
1936
P7. Owner and Address:
John Dambrosio
3130 Balfour Road #269
Brentwood, CA 94513
P8. Recorded by:
Eileen Barrow
Tom Origer & Associates
P.O. Box 1531
Rohnert Park, CA 94927
P9. Date Recorded:
September 2023
P10. Type of Survey:
Intensive
P11. Report Citation:
None
P12. Attachments: Continuation Sheet (13), Building, Structure, and Object Record, Location Map 780
CONTINUATION SHEET Primary #:
HRI #:
Trinomial:
Recorded by: Eileen Barrow, Tom Origer & Associates Date: September 2023 P3a. Description: (continued from Primary Sheet)
Windows throughout the building have been updated to vinyl.
Behind the house is a small gabled shed with an attached shed-roofed double-bay carport.
Most of the property is planted with vineyard.
There is another house on the property constructed in 1967 that is not considered potentially important, as well as a cell tower that resembles a water tower.
View of house facing northwest.
781
CONTINUATION SHEET Primary #:
HRI #:
Trinomial:
Recorded by: Eileen Barrow, Tom Origer & Associates Date: September 2023 View of shed and carport facing northwest.
782
BUILDING, STRUCTURE, Primary #:
AND OBJECT RECORD HRI #:
NRHP Status Code:
Resource Name or #: 2092 Oakley Road
B1. Historic Name: None B2. Common Name: None
B3. Original Use: Residence B4. Present Use: Residence
B5. Architectural Style: Vernacular
B6. Construction History: Review of archival evidence showed that the house was constructed in 1936 by Ben Romiti, the then property owner (Romiti 2010).
B7. Moved? No Date: NA Original Location: NA
B8. Related Features: See the description on the Primary Record and Continuation Sheets (pages 1-3).
B9a. Architect: None
B9b. Builder: Ben Romiti (see Continuation Sheets [pages 8 and 9]).
B10. Significance: Theme: Contra Costa County Agriculture - Viticulture Area: Oakley, Contra Costa County Period of Significance: 1936-1973
Property Type: Farm
Applicable Criteria: Criterion 1 and Criterion 3
Context Statement (see Continuation Sheet 15 through 21) B11. Additional Resource Attributes:
B12. References:
See Continuation Sheets pages 13 through 15.
B13. Remarks:
B14. Evaluator: E. Barrow
Date of Evaluation: September 2023
North
783
CONTINUATION SHEET Primary #:
HRI #:
Trinomial:
Recorded by: E. Barrow Date: September 2023
Historical Context Statement
Oakley lies in eastern Contra Costa County, not far from the Sacramento-San Joaquin Delta. The environs of present-day Oakley are shown on the 1871 county map (Figure 1), where the future Oakley townsite is shown as a square and the study location as a circle. Extensive delta marshlands are also shown, though much of the marsh was reclaimed later in the century.
Figure 1. Map of eastern Contra Costa County, 1871 (Contra Costa County Board of Supervisors 1871) The first permanent, non-native settler in this area was John Marsh, who purchased the Los Meganos land grant in 1837 and moved on to the land in 1838. He also established a landing on the San Joaquin River (US District Court 1861). Over time, Marsh acquired more than 50,000 acres but his holdings were reduced to the original grant of 13,316 acres by the State Lands Commission in the 1850s.
Historical maps filed with the 1852 land grant case in which Marsh’s ownership was challenged show that Marsh had a pier, a house, and two other buildings (Whitcher 1853a, 1853b) (see Figure 2). Reports that he also had a slaughterhouse and smokehouse at the landing are consistent with the expansive cattle enterprise he developed.
An article appearing in the California Farmer and Journal of Useful Sciences (1856) described Marsh’s ranch, which by this time was situated some eight miles south of the landing:
Between the grove and the house is a vineyard filled with young und thrifty vines of the finest varieties of grapes, together with fig, almond, apple, pear and plum trees. In rear of the adobe is another extensive vineyard. The two vineyards will probably yield this year twenty tons of grapes. Though much of the Rancho is admirably adapted to cultivation, its proprietor has preferred to devote it to the purpose of raising cattle. The stock of cattle at present upon the place is six thousand, and the annual increase is estimated at fifteen hundred. 784
CONTINUATION SHEET Primary #:
HRI #:
Trinomial:
Recorded by: E. Barrow Date: September 2023
Figure 2. Portions of maps filed with the Meganos land grant case (Whitcher 1953a, 1953b).
Marsh was murdered just a month after the article appeared. His estate went to his son, Charles, and daughter, Alice.
The 1850 Census data for Contra Costa County was lost en route to the Census Bureau, and while the California census of 1852 substitutes for the population census, agriculture and industry data are not available. Agricultural data for subsequent decades show that in eastern Contra Costa County, the initial focus was on ranged animals with limited production of grain, butter, and wool (United States Bureau of the Census 1860). Ten years later, the census shows a shift toward more grain production. For example, James O’Hara, who at one time owned much of the surrounding Oakley land, reported owning just two horses but had produced 2,000 bushels of winter wheat and 500 bushels of barley (United States Bureau of Census [USBC] 1870). Limited orchard products and wine were also reported in 1870, and by 1880, many reported growing apple orchards and vineyards (USBC 1880).
This shift was not a localized trend, as discussed by Olmstead and Rhode (2003) Their data show that in 1879, over 75 percent of California’s croplands produced wheat and barley while fruit, nuts, vegetables, and cotton were grown on about five percent.
However, “Between 1890 and 1914, the California farm economy fundamentally and swiftly shifted from large-scale ranching and grain-growing operations to smaller-scale, intensive fruit cultivation” Olmstead and Rhode (2003:3).
In the Oakley area, where farmers were ridiculed as “sandlappers” for attempting to cultivate the deep Oakley sand, the introduction of vineyards and fruit and nut orchards was slow but had a lasting influence on the area’s economy. James O’Hara is credited with first planting almond and fruit trees in the Oakley area (Munro-Fraser 1926:172). O’Hara was an early settler in the Oakley area and owned quite a bit of land that was originally railroad grant land.
The town itself was not founded until after the turn of the century. Randolph Marsh wrote in 1916, “Shortly after this [1897] I got a line on the Haven nineteen-acre lot across the road in section 25. Associating N. A. Norcross with myself, we purchased that property, platted and recorded it-and Oakley was on the map” (Marsh 1917:401). In 1901, Marsh and Norcross recorded a plat map of the town where lots were laid out on a 10-block grid (Contra Costa County Recorder 1901). Lands donated to the San Francisco and San Joaquin Valley Railway cut through Block 10 at the northeast end of the map.
The Antioch Ledger(1914) declared “The almond is king in Eastern Contra Costa County” as it reported that another 100 acres of almonds had been planted near Oakley, and by 1916, advertisements touted Oakley as the “home of fruits, grapes, and almonds” (Byron Times 1916, cited in Stanford, et al. 2011).
785
CONTINUATION SHEET Primary #:
HRI #:
Trinomial:
Recorded by: E. Barrow Date: September 2023
Theme - Contra Costa County Viticulture
Especially germane to this study is viticulture. The beginning of viticulture in California dates to the Spanish and Mexican mission period with the first vineyards planted for use in making sacramental wine. Later, wine for general consumption was also being produced by the missions using grapes that became commonly known as “Mission grapes.” The mission grapes grew well, but generally resulted in wines notable only for their blandness (although those from the northern missions were more highly regarded).
As settlement spread throughout California, so too did the cultivation of grapes for wine and for the table. French winemaker Jean-Louis Vignes imported vines from Bordeaux in 1833, establishing the El Aliso vineyard and winery in what is now downtown Los Angeles. Vignes is considered by many to be the founder of California’s wine industry. In Napa County, George Yount is credited with planting the first grapes in the Napa Valley in 1838. His vines came from cuttings taken from Vallejo’s vineyard in Sonoma County, where General Mariano Vallejo continued cultivation of the Sonoma Mission vineyards after secularization in 1834.
Southern California was the first notable grape-growing and wine-making region in California, but by the late 1870s, Sonoma and Napa counties outpaced the south as Italian immigrants brought their expertise to the region. The 1880s witnessed many acres of land planted with vineyards that were previously used for orchards and dairy lands. Data regarding the growth of vineyards and wine production in Northern California were presented by Thomas Pinney (1989) in his book on the history of American winemaking. Using figures from the California State Board of Agriculture, Pinney shows that from 1860 to 1890, “…Los Angeles's share of the state's total [gallons of wine] sank from nearly two-thirds to less than a tenth; in the same span the Bay Area counties saw their share rise from little more than a tenth to near two-thirds, an almost symmetrical exchange” (Pinney 1989:311).
Of Contra Costa County, Pinney (1989: 259) writes that “Dr. John Marsh had a small vineyard in 1846, from which he made wine. Besides Mission vines he had Isabella and Catawba.” During the 1850s, phylloxera, an aphid-like insect, attacked vineyards in both Europe and California. Northern California was not affected until later in the century, with the insect reaching Contra Costa County between 1880 and 1890 (Contra Costa County Agriculture and Weights & Measures 2012). Up until that time, vines were planted using their own roots but phylloxera forced many growers to replant their vineyards, grafting the desirable European grape vines onto the more resistant American rootstock.
Most grape vines planted today are grafted.
In 1920, another blow was struck to the California wine industry when the United States Congress passed the 18th Amendment to the Constitution which forbade the manufacture, sale, or transportation of intoxicating liquors. While many states had already enacted statewide sanctions, the federal government’s actions virtually ended all wine production, except for the few winemakers who were able to obtain permits to make wines used for medicinal and sacramental purposes.
Ironically, while wine production plummeted, the state saw a dramatic increase in the number of acres planted with grapes. State records show that in 1920, there were 410,000 acres of grapes growing statewide: in 1930, there were 570,000 acres of grapes with only 200,000 of those being wine grapes (Peninou 1998:264). Grape growers switched from premium wine grapes to grapes that traveled better as Prohibition created a new demand for these grapes in the East.
California grape growers planted hearty, thick-skinned grapes that could be shipped easily and used for smallscale and home wine making. Much of the California wine-grape crop was shipped to Chicago and New York in newly developed refrigerated boxcars. The grapes were bought right off the train by wholesalers, who resold them in immigrant neighborhoods. The home-made wine was then distributed to smaller cities and towns, where it was sometimes called "dago red" [Muscatine, Amerine, and Thompson 1984].
Prohibition lasted until 1933, disrupting not only the legal production of wine but also having a far-reaching effect on consumers.
Pinney (1989:442) describes the daunting task vintners faced after 1933:
786
CONTINUATION SHEET Primary #:
HRI #:
Trinomial:
Recorded by: E. Barrow Date: September 2023
The immediate question for the winemakers looking over the desolate scene left behind by the Dry years was to educate the American public in the renewed use of wine. If they were older Americans, they had forgotten what the civilized use of wine was; if they were younger, they had never known. …a hard and bitter labor faced the American winegrowers: their vineyards were debased, their wineries decayed, their markets confused by arbitrary and unpredictable barriers, and their public ill-instructed and corrupted by the habits of a harddrinking bootleg style.
To those factors affecting California’s wine industry, add the depressed economy of the 1930s and the onset of World War II.
Before Prohibition, California had more than 700 bonded wineries. That number dropped to 140 by 1933 and in 1960, nearly 30 years after the repeal of Prohibition, the number of wineries was just 271 (Peninou 1998:264). It took another 25 years (in the mid-1980s) before the number of wineries reached pre-Prohibition levels.
Though Napa and Sonoma County have become famous for their wines, there was still an importance for grapes grown in the surrounding counties to support their industry. Author, Frederick J. Hulaniski wrote in 1917, “The vineyards of Contra Costa County have become famous the world over. The soil and climatic conditions are peculiarly favorable to the successful growing of dry-wine grapes, out of which has emerged a great industry. Vineyards have quadrupled in twenty years, the acreage increasing from 1500 to over 6000” (Hulaniski 1917:91). Indeed, the sand hills of eastern Contra Costa County proved to be valuable vineyard lands as growers adopted a dry-root method for their vines where the deep, well-drained sands allowed roots to spread, readily. The lack of moisture resulted in “vines [producing] small, concentrated berries with thick skins. This, in turn, leads to concentrated wines with firm tannins and excellent structure” (Wine-searcher 2023). Growing in sand was also beneficial during the phylloxera infestation. An article published in Scientific American in 1882 discussed the benefits of sandy soil in fighting the disease (Scientific American 1882), and other studies concurred over the years:
The soil and the climate may also affect the resistance by favoring or hindering the approach, dissemination, or activity of the insect. For instance, sand of a certain fineness is an obstacle to the insect in going from the surface of the ground to the root of the vines and from one vine to another [Husmann 1910:15].
Planting grapes on phylloxera-resistant rootstocks or where soil is sandy are the only completely effective methods for controlling grape phylloxera” [emphasis added] [University of California Agriculture and Natural Resources 2022].
During the Depression, many Contra Costa County growers moved on to other crops, but there were several Oakley growers of Italian descent who maintained their vineyards. The Romiti family was among the hardy few who stayed.
Architectural Context – Vernacular
Though vernacular architecture is difficult to define because this term can be all-encompassing, this is typically defined as a simple construct of building that can be specific to a region, period, or culture. Vernacular buildings are not designed by architects but rely on the use of local, historical, or cultural knowledge to construct buildings. Later in time when catalogs became available, people would model buildings after those seen if they did not order kits. Originally, the term “vernacular” was used by colonialists to describe the local buildings of the colonies, but more recently in the United States, it is used as a term that incorporatesseveral types of modest, simple, buildings that were constructed without the design of an architect. Because the definition of vernacular architecture is so broad, it has been argued that the definitions that exist are “non-definitions” and some have even said that vernacular buildings are not architecture (Pevsner 1963:15; Upton and Vlach 2002:xv).
Vernacular houses are of simple design and are constructed with inexpensive materials. The buildings are primarily utilitarian but may have some decorative elements. Vernacular buildings often incorporate local environmental knowledge to make the buildings more comfortable to live in depending on the types of elements. For example, in places where the climate is warm, houses often had summer kitchens constructed near the rear of the building so that cooking wouldn’t warm the house when temperatures were high.
787
CONTINUATION SHEET Primary #:
HRI #:
Trinomial:
Recorded by: E. Barrow Date: September 2023
Property History
Guiseppi (Joe) Romiti emigrated from Italy in 1902 and Clementina Frediani arrived in 1903 (Ancestry.com 1903, 1909). Both settled in Jackson, California, where they married in 1905 (Ancestry.com 1905). The Romitis helped run a family boarding house and while in Jackson, they had three daughters. In 1911, the Romitis left Jackson and purchased the property at 530 O’Hara Avenue in Oakley, where they raised almonds (Romiti 2010). In Oakley, they added four boys to their family. In addition to the 10 acres on O’Hara Avenue, the Romitis purchased 30 more acres of almond trees across the street to the west. When the Romitis moved to Oakley, family from Jackson followed and those relatives owned businessessuch as the Oakley Hotel and the Del Porto Garage. The Romitis were known as a generous family which is evidenced by their donation of six of the 30-acres of almonds to the city to construct a school and their donation of the property at 530 O’Hara Avenue for the construction of a new fire station many years later (Romiti 2010).
Joe died in 1921. Though this left Clementina alone with the children ranging in age from 13 years old to six months, she had the support and help of friends and family. Clementina and her children maintained the almond orchards on O’Hara Avenue.
Clementina stayed at the O’Hara Avenue property until her death in 1955.
In 1930, the Romitis’ son Ben purchased a 10-acre parcel at 2092 Oakley Road for $4,000. The property was already planted with grape vines when Ben bought the property (Brinkley 2018). The exact age of the vineyard is unknown but is estimated to be about 140 years. Based on an aerial photo from 1939, there appears to be part of an orchard on the property as well, as a 2.5-acre area in the northeast corner of the property surrounding the house has different vegetation suggesting larger plants (see Figure 3).
Figure 3. View of the subject property (UCSB 1939).
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The Romiti vineyard is typical of the old Oakley vineyards planted on their own roots and head trained. The sand in which they are planted is resistant to phylloxera making grafted vines unnecessary. Oakley growers take pride in their own-rooted, headtrained vines. Head-trained vines are plants where the “branches” of the vines are trained out from the main trunk.
The house on the property at 2092 Oakley Road was built in 1936 by Ben Romiti. Ben’s niece, Marlene, quoted Ben as saying, “If you live in Oakley why would you want to live at any other place?” (Romiti 2010). Ben farmed the 10-acre property until his death at 95 in 2007. In addition to farming the property, Ben worked for 26 years for Contra Costa County Public Works (Legacy.com 2007). The property passed to Ben’s sons, Frank and Bernard, who decided that they did not want to continue farming the land and they sold the property in 2019.
Statement of Significance
This complex was evaluated for inclusion on the California Register of Historical Resources (California Register). Briefly, a resource eligible for the California Register is one that meets one of the following criteria.
1. Is associated with events that have made a significant contribution to the broad patterns of local or regional history, or the cultural heritage of California or the United States.
2. Is associated with the lives of persons important to local, California, or national history.
3. Embodies the distinctive characteristics of a type, period, region or method of construction, or represents the work of a master, or possesses high artistic values.
4. Has yielded, or may be likely to yield, information important to the prehistory or history of the local area, California, or the nation.
In addition to meeting one or more of the above criteria, eligibility for both the California Register requires that a resource retains sufficient integrity to convey a sense of its significance or importance. Seven elements are considered key in considering a property’s integrity: location, design, setting, materials, workmanship, feeling, and association.
The context used for this property was Contra Costa County Agriculture - Viticulture. The following conclusions were reached regarding the property’s eligibility for the California Register as an individual resource.
Criterion 1. The property at 2092 Oakley Road is associated with the most important aspect of Contra Costa County’s economy, agriculture. Viticulture played a major role in the county’s agricultural development. To meet Criterion 1, the property at 2092 Oakley Road would need to be an exemplary model of a resource type related to viticulture. The Romiti family grew wine grapes for nearly 100 years. The vineyard on the property predates the ownership period of the Romitis and is still present to this day.
Given the longevity and endurance of the vineyard, it is our opinion that the vineyard is exemplary of a small vineyard in Contra Costa County; therefore, Criterion 1 is met.
Criterion 2. The property at 2092 Oakley Road is best associated with Ben Romiti, who owned and farmed the property for over 60 years. Ben Romiti was a locally notable person, as were many of his family members. Though he was well known and well respected, archival research did not show that Ben was a particularly significant individual on his own merits; rather it was the sum of the Romiti family’s contributions that made an impact on the Oakley community. Because of this, it is our opinion that Criterion 2 is not met.
Criterion 3. Criterion 3 speaks to the architectural significance of a property. It appears that the house on the property was constructed in 1936 by Ben Romiti. Ben also had built the house on the property that was constructed in 1967, which is not viewed as an important building. The original house is a simple vernacular building that is indicative of a small, mid-Depression era house in a farming community. There have been few changes to the building (such as additions) and the biggest change has been the replacement of the original windows. It is our opinion that the original house is a good example of a simple Great Depression-era farmhouse in the Oakley vicinity; therefore, Criterion 3 is met. 789
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Criterion 4. This property does not meet Criterion 4. Criterion 4 generally applies to archaeological resources or resources that, through the study of construction details, can provide information that cannot be obtained in other ways. The house and outbuilding possess no intrinsic qualities that could answer questions or provide important information about our history.
Integrity
As the property meets Criterion 1 for its association with the viticulture industry in Contra Costa County and the house meets Criteria 3 as an example of a simple, vernacular, Depression-era house. Our discussion will now turn to the integrity of the property.
Location. The property retains the integrity of location as the house has not been moved and the vineyards are in place as they were over a hundred years ago. The property retains the integrity of location.
Design. Though the property was not designed per se, it did have a layout which has been altered. Review of the 1939 aerial photo (see Figure 3) showed that during the early part of the Romiti ownership, there was a 2.5-acre area of the parcel that was comprised of an orchard and the Romiti house, with the remaining 6.5 acres comprising the old vineyard. In 1967, 0.5 acres of old vineyard was removed to construct the house at the southern end of the property. Based on review of more recent aerial photos, the orchard suffered from neglect and between 1993 and 2002, it was removed and replaced with new grape vines (GoogleEarth 1993 and 2002). In addition, a cell tower designed as a faux water tank sits in the northeast corner of the property. To summarize, the original orchard has been removed and replaced with new grape vines, a half-acre of the original grape vines was removed to construct a single-family house, and a cell tower was added to the northeast corner of the property.
Setting. The house that was constructed in 1967 required the removal of a half-acre of grape vines (approx. 8% of the property). Though not a significant amount of area, it not only removed the grapes but imposed a new feature on the landscape. The original orchard was removed, which in and of itself is not a horrible change, but new grapes were added creating again altering the landscape. Finally, the faux water tower was added at the northeast corner of the property. The setting of the property has been compromised.
In addition, the setting of the surrounding properties has drastically changed. An aerial photo taken in 1939 shows that the subject property as well as the surrounding parcels were all agricultural properties (see Figure 3). The following aerial photo taken in 2021 showsthe property is surrounded by residential and commercial development, with the exception of the parcel directly to the south which is comprised of agricultural land (see Figure 4). In addition, Oakley Road and Main Street are no longer small, two-lane roads, but have been widened into four-lane thoroughfares.
This property’s integrity of setting is greatly diminished due to the changes within and surrounding the parcel.
Materials. The house still largely retains its materials as the siding appears to be original and there are no additions. The major exception is the replacement of the windows from wood-framed to vinyl. Because this is the only change to the house, it is our opinion that the building largely retains the integrity of materials.
Workmanship. This aspect of integrity is the “physical evidence of the crafts of a particular culture or people during any given period in history.” As Ben Romiti was not known as a craftsman, and the house is a simple vernacular building, it does not have any workmanship to express. Therefore, this is not an applicable integrity consideration for this property.
Feeling. Though most of the vineyard is intact as is the original house, this property no longer retains the integrity of feeling.
Between the intrusions of the newer house and cell tower on the property, and the roar of the busy streets and the commercial and residential developments that nearly completely envelope this property, it no longer retains the feeling of a small farm in the Oakley vicinity. Because of the surrounding development, including the widening of Oakley Road and Main Street, this property no longer retains the integrity of feeling.
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Figure 4. View of the subject property (GoogleEarth 2021).
Association. This integrity consideration mostly applies to the property’s eligibility for inclusion under Criterion 1 for its association with the important event of viticulture in Contra Costa County. The property retains the original 100+ year old grape vines and the original house built by Ben Romiti in 1936. These features must convey the important historical theme of viticulture for it to have the integrity of association. Though most people think of the vast lands and palatial wineries of Napa and Sonoma counties when considering vineyards and the wine industry, the industry was very different nearly 100 years ago when the Romitis purchased this property. The house, though small and simple, is a good example of its time and the vineyards are still present.
Because of this, it is our opinion that the property retains the integrity of association.
A property cannot simply meet the necessary criteria for inclusion on the California Register, it must also retain sufficient integrity to convey its significance. Though the property retains integrity of location, materials, and association, it does not retain integrity of design, setting, or feeling (the integrity element of workmanship does not apply). Typically for a property to retain sufficient integrity to be listed on the California it should retain most if not all of the integrity considerations. Though the property retains its integrity of association, which is an important integrity consideration for a property to be listed under Criterion 1, the degradation of the element of setting and the changes that took place on the property itself to affect the element of design precludes this property from retaining sufficient integrity to convey its importance. Therefore, it is our opinion that this property does not retain sufficient integrity to be listed on the California Register. 791
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Conclusion
Research and field examination of the property at 2092 Oakley Road has shown that there are no features or buildings on the property that are eligible for inclusion on the California Register as the property no longer retains the integrity of design, setting, and feeling necessary to reflect a small agricultural property in the Oakley vicinity.
References.
Ancestry.com
1903 Arriving Passenger and Crew Lists, New York, Clementina Frediani, August 1903. Available online at https://www.ancestry.com/
1905 California, Amador County Marriage Record for Guiseppe Romiti and Clementina Frediani. Available online at https://www.ancestry.com/
1909 California Naturalization Records for Giuseppe Romiti. Available online at https://www.ancestry.com/ Antioch Ledger
1914 The Almond Orchards. Antioch Ledger, 7 February 1914.
Brinkely, L.
2018 Vineyard bought for $4,000 up for sale in Oakley for $5M. Interview available online at erhttps://abc7news.com/oakleyvineyard-vinyard-for-sale-in-romiti-family/3252543/.
Byron Times
1916 Oakley - home of fruits, grapes, and almonds. Fifth Booster Edition.
California Department of Transportation
2007 A Historical Context and Archaeological Research Design for Agricultural Properties in California. Division of Environmental Analysis, California Department of Transportation, Sacramento, California.
California Farmer and Journal of Useful Sciences
1856 A California Home. California Farmer and Journal of Useful Sciences, 15 August 1856.
Contra Costa County Agriculture and Weights & Measures
2012 Contra Costa County Agriculture and Weights & Measures Newsletter. Summer 2012. Concord, California.
Contra Costa County Board of Supervisors
1871 Topographical Map of Contra Costa County. Britton & Rey, San Francisco. Available online at https://digitallibrary.californiahistoricalsociety.org/islandora/object/islandora%3A1528.
Contra Costa County Recorder
1901 Map A of the Town of Oakley.
Contra Costa Winegrowers Association
2023 History. Available online at https://ccwinegrowers.com/history/.
Emanuels, G.
1986 California’s Contra Costa County: An Illustrated History. Panorama West Books. Fresno, California.
GoogleEarth
1993 Aerial view of the property at 2092 Oakley Road, Oakley, California. Accessed via the GoogleEarth Pro Application on August 24, 2023.
2002 Aerial view of the property at 2092 Oakley Road, Oakley, California. Accessed via the GoogleEarth Pro Application on August 24, 2023.
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Grimmer, A.
2017 The Secretary of the Interior’s Standards for the Treatment of Historic Properties with Guidelines for Preserving, Rehabilitating, Restoring & Reconstructing Historic Buildings. National Park Service, Washington, D.C.
Hulaniski, F. (Editor)
1917 The History of Contra Costa County. The Elms Publishing, Berkeley.
Husmann, G.
1910 Grape Investigations in the Vinifera Regions of the United States with Reference to Resistant Stocks, Direct Producers, and Viniferas. Bureau of Plant Industry Bulletin 172, United States Department of Agriculture, Washington, DC.
Kukulich, T.
2018 Historic Oakley vineyard up for sale. The Press Hometown News, 12 April 2018. Available online at https://www.thepress.net/news/historic-oakley-vineyard-up-for-sale/article_2c2e5c9e-3e7d-11e8 -aca4- f3d1a7c04eae.html
Legacy.com
2007 Ben S. Romiti. Accessed from https://www.legacy.com/us/obituaries/eastbaytimes/name/ben-romitiobituary?id=24545055 on August 24, 2023.
Lyman, G.
1930 John Marsh, Pioneer: The Life Story of a Trail-Blazer on Six Frontiers. Scribner, New York.
Marsh, R.
1917 Oakley and Sand Lands. In The History of Contra Costa County, edited by F. Hulaniski, pp. 399-403.
McAlester, V. and L. McAlester
1988 A Field Guide to American Houses. Alfred A. Knopf. New York.
Munro-Fraser, J.
1926 History of Contra Costa County, California. Historic Record Company, Los Angelos.
Muscatine, D., M. Amerine, B. Thompson
1984 The University of California/Sotheby Book of California Wine. University of California Press, Berkeley.
National Park Service
1997 How to Apply the National Register Criteria for Evaluation. National Register Bulletin 15. <https://www.nps.gov/nr/publications/bulletins/nrb15/>
Office of Historic Preservation (OHP)
1995 Instructions for Recording Historical Resources. California Office of Historic Preservation, Sacramento.
Olmstead, A. and P. Rhode
2003 The Evolution of California Agriculture 1850-2000. In California Agriculture: Dimensions and Issues, edited by J.
Siebert, pp. 1-28. University of California Giannini Foundation of Agricultural Economics, Division of Agriculture and Natural Resources.
Peninou, E.
1998 History of the Sonoma Viticulture District. Nomis Press, Santa Rosa.
Pevsner, N.
1963 An Outline of European Architecture. Penguin Books. London.
Pinney, T.
1989 A History of Wine in America From the Beginnings To Prohibition. University of California Press, Berkeley. 793
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Romiti, M.
2010 Fire Station Groundbreaking at 530 O’Hara. Accessed from Scientific American
1882 Resistance of Grape Vines to Phylloxera in Sandy Soil. Scientific American. Volume 13, Supplemental Issue 319.
Smith & Elliott
1879 Illustrations of Contra Costa Co., California: with Historical Sketch. Smith & Elliott. Oakland.
Stanford, B., Grossinger R., Askevold R., Whipple A., Leidy R., Beller E., Salomon M., Striplen C. 2011 East Contra Costa County Historical Ecology Study. Historical Ecology Program, SFEI Publication #648, San Francisco Estuary Institute, Oakland.
United States Bureau of Census
1860 Products of Agriculture, Township No. 3, Contra Costa County. 1870 Products of Agriculture, Township No. 3, Contra Costa County. 1880 Products of Agriculture, Township No. 3, Contra Costa County.
United States District Court, Northern District California 1861 Case file for United States vs. John Marsh. Case No. 107, Northern District of California. Documents Pertaining to the Adjudication of Private Land Claims in California, Berkeley Library Digital Collections, BANC MSS Land Case Files 107 ND, UC Berkeley.
University of California Agriculture and Natural Resources 2022 Grape phylloxera-Daktulosphaira vitifoliae. Agriculture and Natural Resources, University of California Statewide Integrated Pest Management Program. Available online at https://ipm.ucanr.edu/PMG/GARDEN/FRUIT/PESTS/grapephylloxera.html University of California Santa Barbara (UCSB)
1939 Flight C 5750. Frame 268-31. Accessed from https://mil.library.ucsb.edu/ap_indexes/FrameFinder/ on May 15, 2023.
Upton, D. and M. Vlach
2002 Common Places: Readings in American Vernacular Architecture. The University of Georgia Press. Athens, Georgia.
Whitcher J.
1853a Map of the Rancho Los Meganos, California. United States District Court, Northern District. One file at the Bancroft Library, UC Berkeley.
1853b U.S. v. John Marsh, Land Case No. 107 [Los Meganos]. United States District Court, Northern District. One file at the Bancroft Library, UC Berkeley.
Wine-searcher
2023 Contra Costa County Wine. Available online at https://www.wine-searcher.com/regions-contra+costa+county. 794
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Map Name: Brentwood and Jersey Island Scale: 7.5’ Date of Map: 1978 795
Appendix F
Geotechnical Investigation
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5236 REDWOOD ROAD, HUGHSON, CA 95326 | P.O. BOX 296, OAKDALE, CA 95361 | 355 EARHART WAY, LIVERMORE, CA 94551 | (209) 602-6569
GEOTECHNICAL INVESTIGATION
PASEO RESIDENTIAL SUBDIVISION
2092 OAKLEY ROAD
OAKLEY, CALIFORNIA
for
John D’Ambrosio Family Trust
November 9, 2022
BGG Project No. G289.01
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5236 REDWOOD ROAD, HUGHSON, CA 95326 | P.O. BOX 296, OAKDALE, CA 95361 | 355 EARHART WAY, LIVERMORE, CA 94551 | (209) 602-6569 Via E-Mail
November 9, 2022
BGG Project No. G289.01
Dan Cosgrove
John D’Ambrosio Family Trust
c/o Mercantile Systems, Inc.
9040 Brentwood Boulevard
Brentwood, California 94513
Subject: Geotechnical Investigation
Paseo Residential Subdivision
2092 Oakley Road
Oakley, California
Dear Mr. Cosgrove:
Baez Geotechnical Group (BGG) has completed a geotechnical investigation for the subject Paseo residential subdivision in Oakley, California. The approximately 9.7-acre site is located at the northwest corner of the intersection of Oakley Road and Main Street, as shown on Plate 1, Vicinity Map. It is our understanding that the proposed residential development will contain 80 new two-story, alley-loaded homes with private backyards. Other improvements will include Asphalt Concrete (AC) paved streets and alleys, 63 guest parking spaces, two parks, and bioretention areas. Some of the proposed building pads may be graded with imported fill to raise the pad elevations, but the extent of elevation increase has not yet been determined. The site is otherwise relatively flat, hence minor grading is anticipated.
PURPOSE AND SCOPE OF SERVICES
The purpose of our geotechnical investigation was to evaluate the subject site with respect to soil and groundwater conditions, and to provide geotechnical recommendations for the design and construction of the proposed improvements. The scope of our services included a review of available geologic literature covering the site, field exploration, field percolation testing, laboratory testing, engineering analyses, and preparation of this report.
FIELD EXPLORATION, PERCOLATION TESTING AND LABORATORY TESTING Our field exploration consisted of drilling borings and advancing cone penetrometer tests at the site on September 30, 2022, in the locations shown on Plate 2, Site Plan. The borings were drilled using a truck-mounted drill rig equipped with solid flight augers and were grouted upon completion with agency observation. Materials encountered in the borings were visually classified in the field and logs were recorded. Bulk soil samples and driven Standard Penetration Test (SPT) and Modified California split spoon tube soil samples were obtained for laboratory testing. The 798
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BAEZ Geotechnical Group Geotechnical Investigation – Paseo Residential Subdivision Page 2 boring logs, showing soil classifications and blow counts, are contained in Appendix A. Field percolation testing was performed at the bottom of borings B3 and B5 at depths of 7-feet and 4-feet bgs, respectively.
Cone Penetrometer Tests (CPTs) were performed in two locations and advanced to depths of 50-feet bgs for CPT1 and 80-feet bgs for CPT2, due to auger refusal. Pore pressure dissipation and shear wave velocity measurements were recorded in CPT2. The CPT data graphs are attached as Appendix B and the locations of the CPTs are shown on Plate 2, Site Plan.
Laboratory testing included tests for in-situ moisture, sieve analysis, hydrometer, consolidation/swell, two-point direct shear, R-Value, and corrosion. A tube soil sample obtained from boring B2 at a depth of 3.5 to 4 feet bgs was found to have a friction angle of 28 degrees and cohesion of 60 psf. A mixture of soil from the upper 4-feet from borings B1 and B3 was found to have an R-Value of 67. Some of the laboratory test results are summarized below and within the boring logs, and the complete laboratory test results are contained in Appendix C.
LABORATORY TEST RESULTS – SIEVES, HYDROMETERS
Location Soil Type % Gravel % Sand % Fines % Clay
B4: 3-3.5 feet SM – Silty Sand Zero 84 16 7
B2: 5.5-6 feet SM – Silty Sand Zero 85 15 5
B1: 13.5-15 feet CL – Silty Clay --- --- 91 ---
B2: 13.5-15 feet SM – Silty Sand --- --- 15 ---
B4: 18.5-20 feet SM – Silty Sand --- --- 37 ---
Note: % Fines = Percent Passing No. 200 sieve (silt and clay particles), % Clay = Percent smaller than 2 microns The consolidation/swell tests consisted of loading relatively undisturbed tube soil samples with an initial seating load approximately equivalent to the in-situ overburden pressure, then loading the samples with a 1,000 psf or 2,000 psf surcharge load, and subsequently saturating the samples.
The amount of long-term consolidation or swell was recorded after applying the surcharge load and again after saturation. The following is a summary of the consolidation/swell test results.
LABORATORY TEST RESULTS – CONSOLIDATION/SWELL
Location Soil
Type
Surcharge
Load
Consolidation
or Swell (1)
Consolidation
or Swell (2)
B1: 1.5-2 feet SM – Silty Sand 1,000 psf -0.2% -0.5%
B3: 2-2.5 feet SM – Silty Sand 1,000 psf -0.1% Zero
B1: 2-2.5 feet SM – Silty Sand 2,500 psf -0.1% -2.0%
B3: 2.5-3 feet SM – Silty Sand 2,500 psf -0.1% -0.8%
(1) Consolidation or swell percent after adding surcharge load (2) Additional consolidation or swell after saturation
A soil sample from B1 at a depth of 4.5 to 5 feet was submitted to Cerco Analytical, a state certified analytical laboratory, for corrosion testing. The tests indicate that the soils are considered mildly corrosive to buried metals and not corrosive to reinforced concrete in contact with the ground. The corrosion test results and a brief evaluation are contained in Appendix D. 799
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BAEZ Geotechnical Group Geotechnical Investigation – Paseo Residential Subdivision Page 3
GEOTECHNICAL FINDINGS
SITE DESCRIPTION
At the time of our field exploration, the site contained a mature grape vineyard and two residences, one in the northeast corner of the site and one near the middle of the southern property line. The site is situated at about 10-feet elevation lower than Main Street and about 8-feet lower than Oakley Road.
Some mature landscape trees are located around the residences. The site is relatively flat with surface elevations of about 20-feet above mean sea level (MSL).
SUBSURFACE CONDITIONS
The upper five feet of the site is mantled by the Dehli sand soil series, according to the USDA Web Soil Survey. These soils reportedly contain 100 percent particles passing the No. 4 sieve (contain no gravel), have 5 to 15 percent fines (silt-sized and clay-sized particles), are nonplastic, and are in Hydrologic Group A. Additionally, the soils are reported to have infiltration rates between 6 to 20 inches per hour.
The following is a general description of the soils encountered in our borings and CPTs. More detailed descriptions of the subsurface soil conditions observed at the site are contained in the boring logs in Appendix A and the CPT interpretation graphs in Appendices E and F. • Upper 5 to 15 feet: Medium dense silty sand grading to dense silty sand with depth. • 5 to 15 feet deep to about 20 to 30 feet deep: The soil below the upper silty sands consists of alternating layers and lenses of dense silty sand, stiff clay, and stiff silty clay. • Between 20 to 30 feet deep down to 50 to 65 feet deep: Stiff clay. • Below 65 feet deep to 80 feet deep: Alternating layers and lenses of dense silty sand, stiff clay, and stiff silty clay.
FIELD PERCOLATION TESTING
Field percolation testing was performed at locations P1 and P2 for the proposed bioretention basins. The percolation tests were performed at depths of 4-feet and 7-feet below the ground surface (bgs) and the test locations are shown on Plate 2, Site Plan. Borings were drilled to the specified percolation test depths at each location and the soils encountered in the borings were classified and logged. Open-ended PVC pipes were utilized for percolation testing by setting the pipes into the boreholes, adding a 2-inch layer of clean gravel, and filling the pipes with water to saturate the soil. Approximately 2-feet vertical head of water was then added into the pipes and the rate of the water level drop in the pipes was monitored until stabilized rates were observed and recorded. The following is a summary of the percolation rates recorded during our testing:
SUMMARY OF FIELD PERCOLATION RATES
Test
Location
Depth of Test
(feet, bgs)
Soil Type at
Bottom of Boring/Test Depth
Infiltration Rate
(inches/hour)
P1 (B3) 7 SM – Silty Sand 27
P2 (B5) 4 SM – Silty Sand 24
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BAEZ Geotechnical Group Geotechnical Investigation – Paseo Residential Subdivision Page 4 The stormwater management system designer should determine the appropriate rate to be used for site drainage design purposes. An appropriate safety factor should be applied to the field percolation rates.
GROUNDWATER
According to the California Water Data Library website, one well is located within about 2 miles from the site. Groundwater levels in this nearby well, which is at an elevation of 30 feet MSL, have reportedly varied between about 20 to 40-feet deep since 2010, with the highest levels reported in the winter and lower levels measured in the summer. Groundwater was reported in CPT2 at a depth of 27 feet bgs during our field exploration. Numerous factors contribute to groundwater level fluctuations including precipitation, irrigation, and well pumping. A detailed evaluation of these and other factors, which may be responsible for groundwater fluctuations, was beyond the scope of this investigation.
RELEVANT GEOLOGIC HAZARDS
The site is located within a seismically active region and will experience seismic shaking from nearby and distant earthquakes. The site modified peak ground acceleration (PGA), according to the Structural Engineers Association of California (SEAOC) website, is 0.66g based on ASCE7-22, which will likely be the adopted standard for the California Building Code (CBC) in the near future. The site is not located within a seismic hazard zone mapped for earthquake faults by the California Geological Survey. Hence, the likelihood for surface fault rupture to occur at the site is nil.
The site is located within a California mapped seismic hazard zone for liquefaction. Liquefaction is the temporary transformation of saturated, loose to medium dense, sandy and silty soils from a solid state to a liquid state due to strong ground shaking during a major earthquake. We performed liquefaction analyses utilizing CLiq liquefaction assessment software (version 3.5.2.5, 2022) by GeoLogismiki. We utilized the Idriss and Boulanger (2014) analyses method, a moment magnitude (Mmax) of 7.0 and a peak ground acceleration (PGA) of 0.66g. The analyses were performed using depths to groundwater of 20-feet and 25-feet, and our analysis results are contained in Appendices E and F, respectively. The lateral spreading analyses assumed flat ground.
Our analyses included evaluating the liquefaction hazards of settlement, lateral spreading, and surface ground rupture, as well as dry sand settlement of the soil above the water table. The following is a summary of the CLiq analyses results.
LIQUEFACTION ANALYSES – GROUNDWATER AT A DEPTH OF 20-FEET CPT Liquefaction
Settlement (in)
Dry Sand
Settlement (in)
Lateral
Displacement Index
Surface Ground
Rupture
CPT1 0.3 0.0 2.6 N/A
CPT2 1.1 1.2 5.5 N/A
Average 0.7 0.6 4.1 None
Note: N/A – Not applicable
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BAEZ Geotechnical Group Geotechnical Investigation – Paseo Residential Subdivision Page 5 LIQUEFACTION ANALYSES – GROUNDWATER AT A DEPTH OF 25-FEET CPT Liquefaction
Settlement (in)
Dry Sand
Settlement (in)
Lateral
Displacement Index
Surface Ground
Rupture
CPT1 0.1 0.1 0.5 N/A
CPT2 0.9 1.2 4.9 N/A
Average 0.5 0.6 2.7 None
The following are our conclusions regarding the potential seismic impacts to the site (liquefaction settlement, dry sand settlement, lateral spreading, and surface ground rupture combined). The worst-case condition occurs when the groundwater level is at a depth of 20-feet bgs during the winter months. A conservative average condition is represented by groundwater occurring at a depth of 25-feet. If groundwater is more than 25-feet deep, seismic impacts would be very low. • Total liquefaction induced ground settlement and dry sand settlement is estimated to be about 1-inch.
• Differential liquefaction induced ground settlement and dry sand settlement is estimated at about ½-inch across the project site.
• The lateral displacement index is 0.5 to 4.9, which is relatively low and below the accuracy level for minor displacements less than about 4 inches. • The likelihood for surface ground rupture is nil.
Total seismically induced ground settlement should not impact the proposed surface improvements since the settlement would likely occur over the general area. Differential settlement could impact surface structures due to the increased amount of potential combined seismic and static differential settlement for the structures. Potential impacts to surface improvements from lateral spreading and surface disturbance are nil.
CONCLUSIONS AND RECOMMENDATIONS
GENERAL
We conclude, from a geotechnical engineering standpoint, that the proposed residential subdivision can generally be constructed as planned, provided that the conclusions and recommendations contained in this report are incorporated into the project design and during construction. The predominant geotechnical condition that may impact the proposed development is the presence of loose soil in the upper one to two feet. The site has been historically utilized for agriculture; hence, the surface soils are disturbed from farming operations and will likely be further disturbed during vineyard removal. The upper 2-feet of existing ground will need to be reworked as properly compacted engineered fill in building pad and other fill areas.
Other potential geotechnical impacts include import fill if needed to raise site grades, the stability of trench sidewalls for underground utility excavations, and the potential for encountering buried structures. Imported fill will need to be evaluated by the geotechnical engineer prior to importing since the recommendations contained in this report are based on the existing site soils. Utility 802
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BAEZ Geotechnical Group Geotechnical Investigation – Paseo Residential Subdivision Page 6 trenches may need to be laid back if caving sand conditions are encountered. Additionally, demolition of the existing structures will likely generate excavations from foundation removal that will need to be backfilled with engineered fill. It is not known if septic systems, leach fields, or irrigation lines are buried at the site, which would also require removal and backfilling with engineered fill.
SITE PREPARATION AND GRADING
Our general site preparation and grading recommendations are as follows:
1. The site will need to be cleared of the existing grape vineyards and structures. Remaining excavations from the removal of foundations, septic systems, leach fields, and buried irrigation lines will need to be backfilled with engineered fill.
2. In areas that will support new structures and receive fill, the upper 2-feet of the exposed soils will need to be reworked as engineered fill. This can be accomplished by a combination of overexcavation and scarification (maximum 12-inch-deep scarify-in-place).
3. If zones of soft or loose soil are encountered during grading operations, overexcavation of the loose soils may be required to expose deeper, firm soils. This should be determined in the field by the soils engineer.
4. Engineered fill soils should be moisture conditioned to above the optimum moisture content and compacted to at least 90 percent relative compaction. Relative compaction refers to the in-place dry density of soil expressed as a percentage of its maximum dry density, as determined by ASTM D1557 compaction test procedure. Optimum moisture is the water content (percentage by dry weight) corresponding to the maximum dry density.
5. Fill should be properly moisture conditioned and placed in thin lifts (normally 6 to 8 inches depending on the compaction equipment) and compacted as prescribed above.
6. The onsite soils are generally suitable for use as engineered fill, provided they are free of debris, significant vegetation, rocks greater than 4 inches in largest dimension and other deleterious matter. Debris, if encountered during grading, will need to be removed from the site.
7. Import fill, if required, should be subject to the evaluation of the soil engineer prior to its use.
Import fill should be predominantly sandy, nonplastic, and contain no deleterious matter or rocks greater than 4 inches in largest dimension.
8. Observations and soil density tests should be performed during grading and backfilling to assist the contractor in obtaining the required degree of compaction and proper moisture content. Where the compaction is outside the range required, additional effort and adjustments to the moisture content should be made until the specified compaction and moisture conditioning are achieved.
9. The soils engineer should be notified at least 48 hours prior to any grading operations. The procedure and methods of grading may then be discussed between the contractor and the soils engineer.
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UTILITY TRENCH EXCAVATION AND BACKFILL
Excavations should conform to applicable State and Federal industrial safety requirements.
Temporary trench sidewalls more than 4-feet-deep may have to be laid back to 1H:1V or flatter to have stable sidewalls. Flatter trench slopes may be required if seepage is encountered during construction or if exposed soil conditions are conducive to instability.
The site soils are predominantly sandy with minor fines, and as such may not stand vertically or may slough into the excavations. The trench excavation sidewalls in these sandy soils may need to be laid back for stability.
Materials quality, placement procedures, and compaction operations for utility line bedding and shading materials should meet local agency and/or other applicable agency requirements. Utility trench backfill above the shading materials may consist of onsite soils, processed to remove rubble, rock fragments over 4 inches in largest dimension, rubbish, vegetation, and other undesirable substances. Backfill materials should be placed in level lifts about 8 to 10 inches in loose thickness, moisture conditioned, and mechanically compacted to at least 90 percent relative compaction.
CALIFORNIA BUILDING CODE (CBC) SEISMIC DESIGN PARAMETERS
The subject site is located at approximately 37.9988 degrees north latitude and -121.7335 degrees west longitude. The site is located within a large, deep alluvial valley; hence, the structural engineer should utilize Site Class D – Stiff Soil for determining seismic response spectra parameters. According to the ASCE 7 Hazard Tool and SEAOC websites (utilizing ASCE7-16), the site modified peak ground acceleration is 0.62g. Alternately, the site modified peak ground acceleration utilizing ASCE7-22 is 0.66g.
FOUNDATIONS
It is our opinion, from a geotechnical engineering standpoint, that shallow foundations can support the proposed structures. We are providing options for both shallow strip and isolated foundations and Post-Tensioned (PT) slab foundations.
SHALLOW STRIP AND ISOLATED FOUNDATIONS
Allowable Bearing Capacity (DL + LL)
(may be increased by one-third for temporary seismic and wind loads at the discretion of the structural engineer)
2,500 psf
Allowable Passive Equivalent Fluid Pressure (neglect the upper 1 foot if the ground surface is not confined by slabs or pavement) 350 pcf
Allowable Base Friction Coefficient 0.35
Minimum Footing Depth 18-inches
Potential Differential Settlement
Static – in an approximate 20-feet span
Seismic – across one building pad
¾-inch
½-inch
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BAEZ Geotechnical Group Geotechnical Investigation – Paseo Residential Subdivision Page 8 We recommend that footing excavations be probed by the geotechnical engineer prior to reinforcing steel and concrete placement. Concrete for footings should be placed against undisturbed engineered fill or firm onsite soils.
The site is underlain by predominantly sandy soils with about 5% clay content, which are considered not expansive soils. However, we are providing two options for PT slab design parameters for the structural engineer to utilize: (1) expansive soil conditions and (2) compressible soil conditions. The expansive soil design parameters that are provided have been utilized for similar projects in the general site vicinity where the soils are predominantly poorly graded sands or silty sands. The compressible soil design parameters provided are based on estimated settlements for the subsurface soil conditions. We should discuss the design methods and results with the structural engineer during the foundation design process.
PT SLAB DESIGN PARAMETERS – EXPANSIVE SOILS
Allowable Bearing Capacity
(may be increased by 1/3 for temporary seismic and wind loads, at the discretion of the structural engineer)
1,500 psf overall
2,200 psf isolated
Passive Equivalent Fluid Pressure
(neglect the upper foot if the ground surface is not confined by slabs or pavement)
350 pcf
Base Friction Coefficient 0.35
Edge Moisture Variation Distance
Center Lift
Edge Lift
9.0 feet
5.0 feet
Differential Swell
Center Lift
Edge Lift
0.60 inches
1.00 inches
Potential Differential Settlement
Static – in an approximate 20-feet span
Seismic – across a building pad
¾-inch
½-inch
Minimum PT Slab Thickness 9 inches
PT SLAB DESIGN PARAMETERS – COMPRESSIBLE SOILS
Allowable Bearing Capacity
(may be increased by 1/3 for temporary seismic and wind loads, at the discretion of the structural engineer)
1,500 psf overall
2,200 psf isolated
Passive Equivalent Fluid Pressure
(neglect the upper foot if the ground surface is not confined by slabs or pavement)
350 pcf
Base Friction Coefficient 0.35
Potential Differential Settlement
Static – in an approximate 20-feet span
Seismic – across a building pad
¾-inch
½-inch
Minimum PT Slab Thickness 9 inches
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BAEZ Geotechnical Group Geotechnical Investigation – Paseo Residential Subdivision Page 9 Where moisture vapor through the floor slabs would be objectionable, the use of a vapor retarder may be necessary. From a geotechnical standpoint, we do not require a layer of sand above the vapor retarder. We suggest utilizing ASTM E1745 and ASTM E1643 as guidelines for the vapor retarder material and for installation of the vapor retarder.
Other minor site structures, such as site walls, can be supported on drilled, reinforced concrete pier foundations, utilizing the following recommendations.
DRILLED REINFORCED CONCRETE PIERS
Allowable Skin Friction, Vertically Down
Ignore the upper foot
400 psf
Allowable Skin Friction, Vertically Up
Ignore the upper foot
250 psf
Allowable Lateral Passive Resistance, equivalent fluid pressure, acting on 1.5 pier diameters, ignore the upper foot
350 pcf
Minimum Pier Diameter 12 inches
CONCRETE SLAB-ON-GRADE FLOORS
Reinforced concrete floor slabs can be utilized if the residences are supported on shallow strip and isolated foundations. The floor slabs should be at least 5-inches-thick and reinforced with reinforcing bars and can be supported directly on properly prepared subgrade soil. The subgrade soil should be moisture conditioned and compacted to at least 90% relative compaction at moisture contents above the optimum moisture. Where moisture vapor through the floor slab would be objectionable, the use of a vapor retarder may be necessary. From a geotechnical standpoint, we do not require a layer of sand above the vapor retarder. We suggest utilizing ASTM E1745 and ASTM E1643 as guidelines for the vapor retarder material and for installation of the vapor retarder.
During foundation and/or utility trench excavation, previously compacted subgrade soils may become disturbed. Before placement of concrete slabs, the disturbed subgrade soils should be moisture conditioned and compacted according to the requirements outlined under the section titled “Site Preparation and Grading” in this report. Subgrade soils should be maintained in a moist and compacted condition until covered with the complete slab section.
EXTERIOR FLATWORK SUGGESTIONS
We suggest that exterior concrete flatwork, such as sidewalks and patios, be at least 5-inches-thick and reinforced with reinforcing bars and driveways should be at least 6-inches-thick. Where possible, flatwork should be doweled into adjacent flatwork to reduce the potential for differential vertical movement. The flatwork can be constructed directly on properly prepared subgrade soils moisture conditioned to above optimum moisture and compacted to at least 90% relative compaction.
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RETAINING WALLS
The following are recommended pressures to be utilized for the design of retaining walls.
Retaining walls should be limited to a height of 6-feet, and the recommended lateral pressures are based on drained conditions. Backdrains are not required for retaining walls less than 2-feet high.
RETAINING WALL DESIGN PARAMETERS
Active Equivalent Fluid Pressure
(Level backfill and drained conditions)
35 pcf
At-Rest Equivalent Fluid Pressure
(Level backfill and drained conditions)
55 pcf
Surcharge Load, where applicable Designated by structural engineer Mechanically Stabilized Earth (MSE) retaining walls (stacked block walls possibly with geogrid reinforcing) can be designed utilizing a friction angle of 30 degrees, zero cohesion, and a moist soil unit weight of 115 pcf. MSE retaining wall backfill materials should consist of the onsite sandy soils. The base of these modular block walls should be at least 1-foot-deep on level ground and at least 2-feet-deep if the ground is sloping.
PAVEMENT RECOMMENDATIONS
We are providing structural pavement recommendations for the onsite soils. Our pavement analyses are based upon an R-Value of 30 using the Caltrans Design Method for Flexible Pavement for a 20-year design life. The following are our recommendations for Asphalt Concrete (AC) pavement sections along with their corresponding traffic indices (TI), which are indications of load frequency and intensity.
AC PAVEMENT SECTIONS
Traffic Index AC (in) Class 2 AB (in) Total (in)
TI=4.5 3 4 7
TI=5 3 5 8
TI=6 3 8 11
TI=7 4
5 9
7 13
12 TI=8 4
5 12
10 16
15 TI=9 5
6 14
12 19
18 The upper foot of the subgrade soils in pavement areas should be compacted to at least 95 percent relative compaction and rolled to provide a smooth and unyielding surface. Class 2 aggregate base (AB) in pavement areas should also be compacted to at least 95 percent relative compaction.
ADDITIONAL SOIL ENGINEERING SERVICES
To a degree, the performance of the proposed project is dependent on the procedures and quality of the construction. Therefore, we should provide observation of the contractor's procedures and 807
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BAEZ Geotechnical Group Geotechnical Investigation – Paseo Residential Subdivision Page 11 the exposed soil conditions, and field and laboratory testing during site preparation and grading, placement and compaction of fill, underground utility backfilling, and foundation construction.
These observations will allow us to check the contractor's work for conformance with the intent of our recommendations and to observe any unanticipated soil conditions that could require modification of our recommendations. In addition, we would welcome the opportunity to meet with the contractor prior to the start of earthwork operations to discuss the procedures and methods of construction. This can facilitate the performance of the construction operation and minimize possible misunderstanding and construction delays.
LIMITATIONS
The conclusions and recommendations contained in this report are based upon the information provided to us regarding the proposed site improvements, subsurface conditions encountered in our field explorations, laboratory testing, and professional judgment. This study has been conducted in accordance with current professional geotechnical engineering standards; no other warranty is expressed or implied.
If changes are planned or implemented regarding the nature, design, and/or location of the proposed improvements, or if it is found during construction that subsurface conditions differ from those described in this report, then the conclusions and recommendations in this report shall be considered invalid, unless the changes are reviewed, and the conclusions and recommendations are modified or approved in writing.
Should you have questions or need additional information, please contact us. We appreciate the opportunity to provide professional services to you and to be involved in the design of this project.
William R. Stevens
Principal Engineer
GE 2339
Respectfully submitted,
BAEZ GEOTECHNICAL GROUP
Stefanie Parman-Ribeiro
Project Engineer
Attachments:
Plate 1 – Vicinity Map
Plate 2 – Site Plan
Appendix A – Boring Logs
Appendix B – CPT Graphs
Appendix C – Laboratory Test Results
Appendix D – Corrosion Test Results
Appendix E – Liquefaction Analyses – Groundwater 20-feet Deep Appendix F – Liquefaction Analyses – Groundwater 25-feet Deep E://BGG/G289-2092 Oakley Road/GI G289 Paseo Oakley.docx 808
809
810
APPENDIX A
Boring Logs
811
USCS
ELEVATION
(feet)
DEPTH
(feet)
SAMPLER
FINES CONTENT
% PASSING #200
PLASTICITY
INDEX
MOISTURE
CONTENT (%)
DRY UNIT
BLOW COUNT
WEIGHT (pcf)
(blows/foot)
MATERIAL DESCRIPTION
0 5
10 15
20 A-1
PAGE 1 OF 1
PROJECT NAME:
PROJECT NUMBER:
DATE DRILLED:
DRILLING CONTRACTOR:
DRILLING METHOD:
LOGGED BY:
NOTES:
BORING NUMBER: B1
BAEZ GEOTECHNICAL GROUP
10 10
35 53
4.2 3.6
91 PROJECT LOCATION:
CLIENT:
GROUND ELEVATION:
GROUNDWATER ELEVATION:
SAMPLER TYPE:
Paseo Subdivision
G289.01
09/30/2022
West Coast Exploration
Solid Flight Auger
KJR
Elevation obtained from Google Earth
2092 Oakley Road, Oakley
Mercantile Systems, Inc.
32 feet MSL
Not encountered
Modified California
Sampler
SM SILTY SAND, tan and medium brown with gray, moist, dense, fine- to medium-grained sand
SM
CL SILTY CLAY, tan and light brown with light and dark gray, slightly moist, hard
SILTY SAND, tan to medium brown, dry, loose, fine- to medium-grained sand
Bottom of Boring at 15 feet below the ground surface (bgs).
Groundwater was not encountered.
32 27
22 17
12 below 1 foot, moist, medium dense
Standard
Penetration Test
(Sample consolidated % upon loading to 1,000 psf and an 0.1 additional 0.5% after saturation)
(Sample consolidated 0.1% upon loading to 2,500 psf and an additional 0.8% after saturation)
812
USCS
ELEVATION
(feet)
DEPTH
(feet)
SAMPLER
FINES CONTENT
% PASSING #200
PLASTICITY
INDEX
MOISTURE
CONTENT (%)
DRY UNIT
WEIGHT (pcf)
BLOW COUNT
(blows/foot)
MATERIAL DESCRIPTION
0 5
10 15
20 A-2
PAGE 1 OF 1
PROJECT NAME:
PROJECT NUMBER:
DATE DRILLED:
DRILLING CONTRACTOR:
DRILLING METHOD:
LOGGED BY:
NOTES:
BORING NUMBER: B2
BAEZ GEOTECHNICAL GROUP
18 17
27 24
15 15
PROJECT LOCATION:
CLIENT:
GROUND ELEVATION:
GROUNDWATER ELEVATION:
SAMPLER TYPE:
Paseo Subdivision
G289.01
09/30/2022
West Coast Exploration
Solid Flight Auger
KJR
Elevation obtained from Google Earth
2092 Oakley Road, Oakley
Mercantile Systems, Inc.
30 feet MSL
Not encountered
Modified California
Sampler
SM SILTY SAND, light tan and gray, moist, medium dense, fine- to mediumgrained sand SM
SM/
ML
SILTY SAND to SANDY SILT, tan and light gray, dry to slightly moist, dense to very stiff
SILTY SAND, tan to medium brown, dry, loose, fine- to medium-grained sand
Bottom of Boring at 15 feet . bgs
Groundwater was not encountered.
30 25
20 15
10 below 1 foot, moist, medium dense
at 10 feet, fine- to coarse-grained sand
Standard
Penetration Test
(84.6% sand, 10.4% silt, 5.0% clay)
813
USCS
ELEVATION
(feet)
DEPTH
(feet)
SAMPLER
FINES CONTENT
% PASSING #200
PLASTICITY
INDEX
MOISTURE
CONTENT (%)
DRY UNIT
WEIGHT (pcf)
BLOW COUNT
(blows/foot)
MATERIAL DESCRIPTION
0 5
10 15
20 A-3
PAGE 1 OF 1
PROJECT NAME:
PROJECT NUMBER:
DATE DRILLED:
DRILLING CONTRACTOR:
DRILLING METHOD:
LOGGED BY:
NOTES:
BORING NUMBER: B3/P1
BAEZ GEOTECHNICAL GROUP
15 25
3.7 3.7
PROJECT LOCATION:
CLIENT:
GROUND ELEVATION:
GROUNDWATER ELEVATION:
SAMPLER TYPE:
Paseo Subdivision
G289.01
09/30/2022
West Coast Exploration
Solid Flight Auger
KJR
Elevation obtained from Google Earth
2092 Oakley Road, Oakley
Mercantile Systems, Inc.
32 feet MSL
Not encountered
Modified California
Sampler
SP SAND with SILT, tan to medium brown, medium dense, moist, fine- to coarse-grained sand
SM SILTY SAND, tan to medium brown, dry, loose, fine- to medium-grained sand
Bottom of Boring at 7 feet . bgs
Groundwater was not encountered.
32 27
22 17
12 below 1 foot, moist, medium dense
Standard
Penetration Test
below 3 feet, fine- to coarse-grained sand
(Sample consolidated % upon loading to 1,000 psf and 0.1 nearly zero additional consolidation after saturation)
(Sample consolidated 0.1% upon loading to 2,500 psf and an additional 0.8% after saturation)
814
USCS
ELEVATION
(feet)
DEPTH
(feet)
SAMPLER
FINES CONTENT
% PASSING #200
PLASTICITY
INDEX
MOISTURE
CONTENT (%)
DRY UNIT
WEIGHT (pcf)
BLOW COUNT
(blows/foot)
MATERIAL DESCRIPTION
A-4
PAGE 1 OF 1
PROJECT NAME:
PROJECT NUMBER:
DATE DRILLED:
DRILLING CONTRACTOR:
DRILLING METHOD:
LOGGED BY:
NOTES:
BORING NUMBER: B4
BAEZ GEOTECHNICAL GROUP
13 50/6”
12 PROJECT LOCATION:
CLIENT:
GROUND ELEVATION:
GROUNDWATER ELEVATION:
SAMPLER TYPE:
Standard
Penetration Test
Bottom of Boring at feet . 20 bgs Groundwater not encountered. 16 37
SM
Paseo Subdivision
G289.01
09/30/2022
West Coast Exploration
Solid Flight Auger
KJR
Elevation obtained from Google Earth
2092 Oakley Road, Oakley
Mercantile Systems, Inc.
29 feet MSL
Not encountered
saturated below 19 feet
29 24
19 14
9 0
5 10
15 20
Modified California
Sampler
SILTY SAND, tan to medium brown, dry, loose, fine- to medium-grained sand
below 1 foot, moist, medium dense
ML SANDY SILT, tan and light gray, dry to slightly moist, hard SM SILTY SAND, tan and light brown, moist to wet, medium dense, fine- to medium-grained sand
(84.2% sand, 9.3% silt, 6.5% clay)
815
USCS
ELEVATION
(feet)
DEPTH
(feet)
SAMPLER
FINES CONTENT
% PASSING #200
PLASTICITY
INDEX
MOISTURE
CONTENT (%)
DRY UNIT
WEIGHT (pcf)
BLOW COUNT
(blows/foot)
MATERIAL DESCRIPTION
0 5
10 15
20 A-5
PAGE 1 OF 1
PROJECT NAME:
PROJECT NUMBER:
DATE DRILLED:
DRILLING CONTRACTOR:
DRILLING METHOD:
LOGGED BY:
NOTES:
BORING NUMBER: B5/P2
BAEZ GEOTECHNICAL GROUP
PROJECT LOCATION:
CLIENT:
GROUND ELEVATION:
GROUNDWATER ELEVATION:
SAMPLER TYPE:
Paseo Subdivision
G289.01
09/30/2022
West Coast Exploration
Solid Flight Auger
KJR
Elevation obtained from Google Earth
2092 Oakley Road, Oakley
Mercantile Systems, Inc.
30 feet MSL
Not encountered
Modified California
Sampler
SM SILTY SAND, tan to medium brown, dry, loose, fine- to medium-grained sand
Bottom of Boring at 4 feet . bgs
Groundwater was not encountered.
30 25
20 15
10 below 1 foot, moist and medium dense
Standard
Penetration Test
816
APPENDIX B
Middle Earth Earth Geo Testing, Inc.
Cone Penetrometer Test (CPT) Graphs
817
Baez Geotechnical
Project Oakley Paseos Operator AJ-BH Filename SDF(231).cptJob Number G289.01 Cone Number DDG1589 GPSHole Number CPT-01 Date and Time 9/30/2022 11:16:19 AM Maximum Depth 50.36 ftEST GW Depth During Test 15.00 ft Net Area Ratio .8Cone Size 15cm squared Soil Behavior Referance *Soil behavior type and SPT based on data from UBC-1983 0 10 20 30 40 50 60 70 80
0 600
TIP
TSF 0 10
FRICTION
TSF 0 9
Fs/Qt
% -20 100
PRESSURE U2
PSI 0 12
1 - sensitive fine grained 2 - organic material 3 - clay 4 - silty clay to clay 5 - clayey silt to silty clay 6 - sandy silt to clayey silt 7 - silty sand to sandy silt 8 - sand to silty sand 9 - sand 10 - gravelly sand to sand 11 - very stiff fine grained (*)12 - sand to clayey sand (*)
CPT DATA
DEPTH
(ft)
SOIL
BEHAVIOR
TYPE
818
Baez Geotechnical
Project Oakley Paseos Operator AJ-BH Filename SDF(230).cptJob Number G289.01 Cone Number DDG1589 GPSHole Number CPT-02 Date and Time 9/30/2022 8:45:23 AM Maximum Depth 79.72 ftEST GW Depth During Test 26.60 ft Net Area Ratio .8Cone Size 15cm squared Soil Behavior Referance *Soil behavior type and SPT based on data from UBC-1983 0 10 20 30 40 50 60 70 80
0 600
TIP
TSF 0 10
FRICTION
TSF 0 9
Fs/Qt
% -20 100
PRESSURE U2
PSI 0 12
1 - sensitive fine grained 2 - organic material 3 - clay 4 - silty clay to clay 5 - clayey silt to silty clay 6 - sandy silt to clayey silt 7 - silty sand to sandy silt 8 - sand to silty sand 9 - sand 10 - gravelly sand to sand 11 - very stiff fine grained (*)12 - sand to clayey sand (*)
CPT DATA
DEPTH
(ft)
SOIL
BEHAVIOR
TYPE
819
Baez Geotechnical
Depth 4.99ftRef*
Arrival 8.75mSVelocity*
Depth 10.01ftRef 4.99ft
Arrival 13.36mSVelocity 847.95ft/S
Depth 15.03ftRef 10.01ft
Arrival 18.59mSVelocity 866.65ft/S
Depth 20.01ftRef 15.03ft
Arrival 23.28mSVelocity 1008.52ft/S
Depth 30.02ftRef 20.01ft
Arrival 33.51mSVelocity 951.29ft/S
Depth 35.01ftRef 30.02ft
Arrival 39.06mSVelocity 884.89ft/S
Depth 40.03ftRef 35.01ft
Arrival 43.75mSVelocity 1058.16ft/S
Depth 45.01ftRef 40.03ft
Arrival 48.28mSVelocity 1090.38ft/S
Depth 50.03ftRef 45.01ft
Arrival 54.14mSVelocity 850.35ft/S
Depth 55.02ftRef 50.03ft
Arrival 60.00mSVelocity 845.94ft/S
Depth 60.04ftRef 55.02ft
Arrival 65.07mSVelocity 983.50ft/S
Depth 65.03ftRef 60.04ft
Arrival 69.21mSVelocity 1199.24ft/S
Depth 70.05ftRef 65.03ft
Arrival 73.98mSVelocity 1049.47ft/S
0 10 20 30 40 50 60 70 80 90 100
Depth 79.72ftRef 70.05ft
Arrival 80.07mSVelocity 1583.55ft/S
Time (mS)
Hammer to Rod String Distance (ft): 5.83
* = Not Determined
COMMENT:
CPT-02 Oakley Paseos
820
APPENDIX C
Laboratory Test Results
821
B1&B3@0-4
SAMPLE ID
Dark brown silty SAND B1 and B3 at 0-4 feet
MATERIAL DESCRIPTION ¹ SAMPLE LOCATION
R-VALUE TEST REPORT
CTM 301
2213 Plaza Drive | Rocklin, CA 95765 | T: (916) 786-8883 | F: (888) 279-2698 | www.engeo.com TESTED BY:
REVIEWED BY:
14368.000.174 PHLAB
G289.01 - Paseo Homes, Oakley, Ca
Oakley, CA
10/12/2022
M. Ryan
M. Gilbert
PROJECT LOCATION:
PROJECT NO:
R-VALUE 79 72 65
MOISTURE CONTENT (%) 9.0 10.7 12.8
REPORT DATE:
PROJECT NAME:
CLIENT: Baez Geotechnical Group, Inc.
DRY DENSITY (pcf)
¹ Material description per ASTM D2488
0 110.3 112.2 110.7
67 TEST RESULT
R-VALUE AT EXUDATION PRESSURE OF 300 psi
EXPANSION PRESSURE (psf) AT EXUDATION PRESSURE OF 300 psi 00 SPECIMENS 1 2 3
EXUDATION PRESSURE (psi) 575 453 126
EXPANSION PRESSURE (psf) 0
R-VALUE
0 5
10 15
20 25
30 35
40 45
50 55
60 65
70 75
80 85
90 95
100
0 5
10 15
20 25
30 35
40 45
50 55
60 65
70 75
80 85
90 95
100
900 800 700 600 500 400 300 200 100 0
EXPANSION PRESSURE (psf)
R-VALUE
EXUDATION PRESSURE (psi)
822
SAMPLE ID: B1 @ 1.5-2' IN-SITU LOAD (psf): 150
SAMPLE DESCRIPTION: See exploration logs DESIGN LOAD (psf): 1000 TYPE OF WATER USED: Distilled USCS: n/a SOURCE OF WATER: Distilled TRANSPORTATION METHOD: Insulated bucket SAMPLING DATE: n/a STORAGE ENVIRONMENT: Controlled TEST START DATE: 10/03/22 Remolded? (Y/N): N Initial % Saturation: 17.77
Number of lifts, if remolded: n/a Final % Saturation: 100.00 Specific Gravity, <#4 (Measured): 2.682 Initial water content: 4.24 Initial sample height (in): 0.9990 Final water content: 23.38 Dry in-situ load height (in): 0.9987 Post-test dry density (pcf): 102.83 Dry design load height (in): 0.9972 Dry In-situ load % SWELL/COLLAPSE: -0.03 Wet design load height (in): 0.9919 Dry design load % SWELL/COLLAPSE: -0.15 Initial sample mass (g): 126.10 Wet design load % SWELL/COLLAPSE: -0.53 Final saturated sample mass (g): 149.25 Overall % SWELL/COLLAPSE: -0.71 Testing remarks:
PROJECT NAME: G289.01 - Paseo Homes REPORT DATE: 10/06/22 PROJECT NUMBER: 14368.000.174 PHLAB
CLIENT: Baez Geotechnical Group, Inc.
PHASE NUMBER: LAB
Tested by: K. Lecce Reviewed by: M. Tong
ONE DIMENSIONAL SWELL/COLLAPSE POTENTIAL - METHOD 'C' Modified ASTM D4546
0.9850
0.9870
0.9890
0.9910
0.9930
0.9950
0.9970
0.9990
1.0010
1.0030
1.0050
0.0 0.1 1.0 10.0 100.0 1000.0 10000.0
Height (in)
Time (minutes)
Sample Height vs Time
Lab Address: 17278 Golden Valley Parkway, Lathrop, CA 95330. Phone No. (209) 835-0610. 823 SAMPLE ID: B1 @ 2-2.5' IN-SITU LOAD (psf): 200
SAMPLE DESCRIPTION: See exploration logs DESIGN LOAD (psf): 2500 TYPE OF WATER USED: Distilled USCS: n/a SOURCE OF WATER: Distilled TRANSPORTATION METHOD: Insulated bucket SAMPLING DATE: n/a STORAGE ENVIRONMENT: Controlled TEST START DATE: 10/03/22 Remolded? (Y/N): N Initial % Saturation: 15.05
Number of lifts, if remolded: n/a Final % Saturation: 100.00 Specific Gravity, <#4 (Measured): 2.663 Initial water content: 3.62 Initial sample height (in): 1.0020 Final water content: 22.68 Dry in-situ load height (in): 1.0018 Post-test dry density (pcf): 103.57 Dry design load height (in): 1.0004 Dry In-situ load % SWELL/COLLAPSE: -0.02 Wet design load height (in): 0.9806 Dry design load % SWELL/COLLAPSE: -0.14 Initial sample mass (g): 124.60 Wet design load % SWELL/COLLAPSE: -1.98 Final saturated sample mass (g): 147.52 Overall % SWELL/COLLAPSE: -2.14 Testing remarks:
PROJECT NAME: G289.01 - Paseo Homes REPORT DATE: 10/06/22 PROJECT NUMBER: 14368.000.174 PHLAB
CLIENT: Baez Geotechnical Group, Inc.
PHASE NUMBER: LAB
Tested by: K. Lecce Reviewed by: M. Tong
ONE DIMENSIONAL SWELL/COLLAPSE POTENTIAL - METHOD 'C' Modified ASTM D4546
0.9700
0.9730
0.9760
0.9790
0.9820
0.9850
0.9880
0.9910
0.9940
0.9970
1.0000
1.0030
1.0060
1.0090
0.0 0.1 1.0 10.0 100.0 1000.0 10000.0
Height (in)
Time (minutes)
Sample Height vs Time
Lab Address: 17278 Golden Valley Parkway, Lathrop, CA 95330. Phone No. (209) 835-0610. 824 SAMPLE ID: B3 @ 2-2.5' IN-SITU LOAD (psf): 200
SAMPLE DESCRIPTION: See exploration logs DESIGN LOAD (psf): 1000 TYPE OF WATER USED: Distilled USCS: n/a SOURCE OF WATER: Distilled TRANSPORTATION METHOD: Insulated bucket SAMPLING DATE: n/a STORAGE ENVIRONMENT: Controlled TEST START DATE: 10/03/22 Remolded? (Y/N): N Initial % Saturation: 16.29
Number of lifts, if remolded: n/a Final % Saturation: 99.99 Specific Gravity, <#4 (Measured): 2.658 Initial water content: 3.73 Initial sample height (in): 0.9990 Final water content: 22.74 Dry in-situ load height (in): 0.9980 Post-test dry density (pcf): 103.35 Dry design load height (in): 0.9973 Dry In-situ load % SWELL/COLLAPSE: -0.10 Wet design load height (in): 0.9970 Dry design load % SWELL/COLLAPSE: -0.07 Initial sample mass (g): 128.42 Wet design load % SWELL/COLLAPSE: -0.03 Final saturated sample mass (g): 151.95 Overall % SWELL/COLLAPSE: -0.20 Testing remarks:
PROJECT NAME: G289.01 - Paseo Homes REPORT DATE: 10/13/22 PROJECT NUMBER: 14368.000.174 PHLAB
CLIENT: Baez Geotechnical Group, Inc.
PHASE NUMBER: LAB
Tested by: K. Lecce Reviewed by: M. Tong
ONE DIMENSIONAL SWELL/COLLAPSE POTENTIAL - METHOD 'C' Modified ASTM D4546
0.9900
0.9910
0.9920
0.9930
0.9940
0.9950
0.9960
0.9970
0.9980
0.9990
1.0000
1.0010
1.0020
1.0030
1.0040
1.0050
0.0 0.1 1.0 10.0 100.0 1000.0 10000.0
Height (in)
Time (minutes)
Sample Height vs Time
Lab Address: 17278 Golden Valley Parkway, Lathrop, CA 95330. Phone No. (209) 835-0610. 825 SAMPLE ID: B3 @ 2.5-3' IN-SITU LOAD (psf): 250
SAMPLE DESCRIPTION: See exploration logs DESIGN LOAD (psf): 2500 TYPE OF WATER USED: Distilled USCS: n/a SOURCE OF WATER: Distilled TRANSPORTATION METHOD: Insulated bucket SAMPLING DATE: n/a STORAGE ENVIRONMENT: Controlled TEST START DATE: 10/03/22 Remolded? (Y/N): N Initial % Saturation: 15.21
Number of lifts, if remolded: n/a Final % Saturation: 100.00 Specific Gravity, <#4 (Measured): 2.688 Initial water content: 3.71 Initial sample height (in): 1.0550 Final water content: 23.78 Dry in-situ load height (in): 1.0549 Post-test dry density (pcf): 102.30 Dry design load height (in): 1.0535 Dry In-situ load % SWELL/COLLAPSE: -0.01 Wet design load height (in): 1.0455 Dry design load % SWELL/COLLAPSE: -0.13 Initial sample mass (g): 133.16 Wet design load % SWELL/COLLAPSE: -0.76 Final saturated sample mass (g): 158.93 Overall % SWELL/COLLAPSE: -0.90 Testing remarks:
PROJECT NAME: G289.01 - Paseo Homes REPORT DATE: 10/13/22 PROJECT NUMBER: 14368.000.174 PHLAB
CLIENT: Baez Geotechnical Group, Inc.
PHASE NUMBER: LAB
Tested by: K. Lecce Reviewed by: M. Tong
ONE DIMENSIONAL SWELL/COLLAPSE POTENTIAL - METHOD 'C' Modified ASTM D4546
1.0400
1.0410
1.0420
1.0430
1.0440
1.0450
1.0460
1.0470
1.0480
1.0490
1.0500
1.0510
1.0520
1.0530
1.0540
1.0550
1.0560
1.0570
1.0580
1.0590
1.0600
0.0 0.1 1.0 10.0 100.0 1000.0 10000.0
Height (in)
Time (minutes)
Sample Height vs Time
Lab Address: 17278 Golden Valley Parkway, Lathrop, CA 95330. Phone No. (209) 835-0610. 826 ===
===
===
B4
FINE COARSE
DEPTH (ft):
COARSE
9.3 6.5
MEDIUM FINE
ATTERBERG LIMITS
PL =
SAMPLE ID:
3-3.5
[email protected]'
19.3 64.9
% FINES
SILT CLAY
% +75mm
% GRAVEL % SAND
LOCATION:
0.1306 mm D15
ASTM D422
PARTICLE SIZE DISTRIBUTION REPORT
SIEVE
SIZE
PERCENT
FINER
SPEC.*
PERCENT
PASS?
(X=NO)
SOIL DESCRIPTION
See exploration logs
#4
#10
#20
#40
#60
#100
#140
#200
0.0359 mm.
0.0227 mm.
0.0131 mm.
0.0093 mm.
0.0066 mm.
0.0047 mm.
0.0038 mm.
0.0032 mm.
0.0014mm.
100.0
100.0
98.3 80.7
59.1 34.2
23.4 15.8
9.5 9.5
9.5 9.5
7.7 7.7
7.7 7.7
5.6 Silt/clay division of 0.002mm used
USCS: ASTM D2487
* (no specification provided)
LL = PI =
#DIV/0!
COEFFICIENTS
D90 0.6164 mm D85 0.5079 mm D60 0.2557 mm
D50 0.2074 mm D30
REMARKS
#DIV/0!
CLASSIFICATION
USCS =
D10 #DIV/0! Cu #DIV/0! Cc
17278 Golden Valley Parkway | Lathrop, CA 95330 | T: (209) 835-0610 | F: (888) 279-2698 | www.engeo.com REPORT DATE: 10/10/2022
TESTED BY: K. Lecce
REVIEWED BY: M. Tong
CLIENT: Baez Geotechnical Group, Inc.
PROJECT NAME: G289.01 - Paseo Homes
PROJECT NO: 14368.000.173 PHLAB
PROJECT LOCATION: Oakley, CA
0 10
20 30
40 50
60 70
80 90
100
100 10 1 0.1 0.01 0.001
PERCENT FINER
GRAIN SIZE - mm.
6 in.
3 in.
2 in.
1 ½ in.
1 in.
¾ in.
½ in.
⅜ in.
#4
#10
#20
#40
#60#100
#140
#200
827
===
===
===
17278 Golden Valley Parkway | Lathrop, CA 95330 | T: (209) 835-0610 | F: (888) 279-2698 | www.engeo.com REPORT DATE: 10/10/2022
TESTED BY: K. Lecce
REVIEWED BY: M. Tong
CLIENT: Baez Geotechnical Group, Inc.
PROJECT NAME: G289.01 - Paseo Homes
PROJECT NO: 14368.000.173 PHLAB
PROJECT LOCATION: Oakley, CA
REMARKS
#N/A
CLASSIFICATION
USCS =
D10 #N/A Cu #N/A Cc
Silt/clay division of 0.002mm used
USCS: ASTM D2487
* (no specification provided)
LL = PI =
#N/A
COEFFICIENTS
D90 0.5212 mm D85 0.4130 mm D60 0.2226 mm
D50 0.1851 mm D30 0.1185 mm D15
ASTM D422
PARTICLE SIZE DISTRIBUTION REPORT
SIEVE
SIZE
PERCENT
FINER
SPEC.*
PERCENT
PASS?
(X=NO)
SOIL DESCRIPTION
See exploration logs
#4
#10
#20
#40
#60
#100
#140
#200
0.0359 mm.
0.0227 mm.
0.0131 mm.
0.0093 mm.
0.0066 mm.
0.0047 mm.
0.0038 mm.
0.0033 mm.
0.0014mm.
100.0
100.0
98.9 86.5
66.3 38.6
25.6 15.4
9.5 9.5
9.5 7.7
7.7 7.7
5.8 5.1
4.9 ATTERBERG LIMITS
PL =
SAMPLE ID:
5.5-6
[email protected]'
13.5 71.1
% FINES
SILT CLAY
% +75mm
% GRAVEL % SAND
LOCATION: B2
FINE COARSE
DEPTH (ft):
COARSE
10.4 5.0
MEDIUM FINE
0 10
20 30
40 50
60 70
80 90
100
100 10 1 0.1 0.01 0.001
PERCENT FINER
GRAIN SIZE - mm.
6 in.
3 in.
2 in.
1 ½ in.
1 in.
¾ in.
½ in.
⅜ in.
#4
#10
#20
#40
#60#100
#140
#200
828
===
===
===
17278 Golden Valley Parkway | Lathrop, CA 95330 | T: (209) 835-0610 | F: (888) 279-2698 | www.engeo.com REPORT DATE: 10/6/2022
TESTED BY: K. Lecce
REVIEWED BY: M. Tong
CLIENT: Baez Geotechnical Group, Inc.
PROJECT NAME: G289.01 - Paseo Homes
PROJECT NO: 14368.000.174 PHLAB
PROJECT LOCATION: Oakley, CA
REMARKS
CLASSIFICATION
USCS =
D10 Cu Cc
Soak time = 180 min
Dry sample weight = 296.4 g
Largest particle size < No. 4 Sieve
* (no specification provided)
LL = PI =
COEFFICIENTS
D90 D85 D60
D50 D30 D15
ASTM D1140, Method B
PARTICLE SIZE DISTRIBUTION REPORT
SIEVE
SIZE
PERCENT
FINER
SPEC.*
PERCENT
PASS?
(X=NO)
SOIL DESCRIPTION
See exploration logs
#200 90.8
DEPTH (ft):
ATTERBERG LIMITS
PL =
SAMPLE ID:
13.5-15
B1 @ 13.5-15'
% FINES
SILT CLAY
% +75mm
% GRAVEL % SAND
MEDIUM FINE
LOCATION: B1
90.8 COARSE FINE COARSE
0 10
20 30
40 50
60 70
80 90
100
100 10 1 0.1 0.01 0.001
PERCENT FINER
GRAIN SIZE - mm.
6 in.
3 in.
2 in.
1 ½ in.
1 in.
¾ in.
½ in.
⅜ in.
#4
#10
#20
#40
#60#100
#140
#200
829
===
===
===
17278 Golden Valley Parkway | Lathrop, CA 95330 | T: (209) 835-0610 | F: (888) 279-2698 | www.engeo.com REPORT DATE: 10/6/2022
TESTED BY: K. Lecce
REVIEWED BY: M. Tong
CLIENT: Baez Geotechnical Group, Inc.
PROJECT NAME: G289.01 - Paseo Homes
PROJECT NO: 14368.000.174 PHLAB
PROJECT LOCATION: Oakley, CA
REMARKS
CLASSIFICATION
USCS =
D10 Cu Cc
Soak time = 180 min
Dry sample weight = 331.55 g
Largest particle size < No. 4 Sieve
* (no specification provided)
LL = PI =
COEFFICIENTS
D90 D85 D60
D50 D30 D15
ASTM D1140, Method B
PARTICLE SIZE DISTRIBUTION REPORT
SIEVE
SIZE
PERCENT
FINER
SPEC.*
PERCENT
PASS?
(X=NO)
SOIL DESCRIPTION
See exploration logs
#200 15.4
DEPTH (ft):
ATTERBERG LIMITS
PL =
SAMPLE ID:
13.5-15
B2 @ 13.5-15'
% FINES
SILT CLAY
% +75mm
% GRAVEL % SAND
MEDIUM FINE
LOCATION: B2
15.4 COARSE FINE COARSE
0 10
20 30
40 50
60 70
80 90
100
100 10 1 0.1 0.01 0.001
PERCENT FINER
GRAIN SIZE - mm.
6 in.
3 in.
2 in.
1 ½ in.
1 in.
¾ in.
½ in.
⅜ in.
#4
#10
#20
#40
#60#100
#140
#200
830
===
===
===
17278 Golden Valley Parkway | Lathrop, CA 95330 | T: (209) 835-0610 | F: (888) 279-2698 | www.engeo.com REPORT DATE: 10/6/2022
TESTED BY: K. Lecce
REVIEWED BY: M. Tong
CLIENT: Baez Geotechnical Group, Inc.
PROJECT NAME: G289.01 - Paseo Homes
PROJECT NO: 14368.000.174 PHLAB
PROJECT LOCATION: Oakley, CA
REMARKS
CLASSIFICATION
USCS =
D10 Cu Cc
Soak time = 180 min
Dry sample weight = 419.4 g
Largest particle size < No. 4 Sieve
* (no specification provided)
LL = PI =
COEFFICIENTS
D90 D85 D60
D50 D30 D15
ASTM D1140, Method B
PARTICLE SIZE DISTRIBUTION REPORT
SIEVE
SIZE
PERCENT
FINER
SPEC.*
PERCENT
PASS?
(X=NO)
SOIL DESCRIPTION
See exploration logs
#200 36.7
DEPTH (ft):
ATTERBERG LIMITS
PL =
SAMPLE ID:
18.5-20
B4 @ 18.5-20'
% FINES
SILT CLAY
% +75mm
% GRAVEL % SAND
MEDIUM FINE
LOCATION: B4
36.7 COARSE FINE COARSE
0 10
20 30
40 50
60 70
80 90
100
100 10 1 0.1 0.01 0.001
PERCENT FINER
GRAIN SIZE - mm.
6 in.
3 in.
2 in.
1 ½ in.
1 in.
¾ in.
½ in.
⅜ in.
#4
#10
#20
#40
#60#100
#140
#200
831
APPENDIX D
CERCO Analytical Corrosion Test Results
832
833
834
835
APPENDIX E
CLiq Liquefaction Analyses Reports
for Groundwater at 20-feet Deep
836
LI Q UEFACTION ANALYSIS REPORT
Input parameters and analysis data
Analysis method:
Fines correction method:
Points to test:
Earthquake magnitude Mw:
Peak ground acceleration:
B&I (2014)
B&I (2014)
Based on Ic value
7.00 0.66
G.W.T. (in-situ):
G.W.T. (earthq.):
Average results interval:
Ic cut-off value:
Unit weight calculation:
Project title : G289.01 Paseo Location : Oakley Road, Oakley Baez Geotechnical Group
Geotechnical Engineers
BGG
http://www.baezgeotechnicalgroup.com
CPT file : CPT-01
20.00 ft
20.00 ft
3 2.60
Based on SBT
Use fill:
Fill height:
Fill weight:
Trans. detect. applied:
Kσ applied:
No
N/A
N/A
Yes
Yes
Clay like behavior
applied:
Limit depth applied:
Limit depth:
MSF method:
Sands only
No
N/A
Method
bd Cone resistance
qt (tsf)
100 200
Depth (ft)
50 48
46 44
42 40
38 36
34 32
30 28
26 24
22 20
18 16
14 12
10 8
6 4
2 Cone resistance SBTn Plot
Ic (Robertson 1990)
1 2 3 4
50 48
46 44
42 40
38 36
34 32
30 28
26 24
22 20
18 16
14 12
10 8
6 4
2 SBTn Plot CRR plot
CRR & CSR
0 0.2 0.4 0.6
50 48
46 44
42 40
38 36
34 32
30 28
26 24
22 20
18 16
14 12
10 8
6 4
2 CRR plot
During earthq.
qc1N,cs
0 20 40 60 80 100 120 140 160 180 200
Cyclic Stress Ratio* (CSR*)
0.8 0.7
0.6 0.5
0.4 0.3
0.2 0.1
0 Liquefaction
No Liquefaction
Normalized friction ratio (%)
0.1 1 10
Normalized CPT penetration resistance
1 10
100
1,000
Friction Ratio
Rf (%)
0 2 4 6 8 10
50 48
46 44
42 40
38 36
34 32
30 28
26 24
22 20
18 16
14 12
10 8
6 4
2 Friction Ratio
Mw=71/2, sigma'=1 atm base curve Summary of liquefaction potential FS Plot
Factor of safety
0 0.5 1 1.5 2
50 48
46 44
42 40
38 36
34 32
30 28
26 24
22 20
18 16
14 12
10 8
6 4
2 FS Plot
During earthq.
Zone A1: Cyclic liquefaction likely depending on size and duration of cyclic loading Zone A2: Cyclic liquefaction and strength loss likely depending on loading and ground geometry
Zone B: Liquefaction and post-earthquake strength loss unlikely, check cyclic softening Zone C: Cyclic liquefaction and strength loss possible depending on soil plasticity, brittleness/sensitivity, strain to peak undrained strength and ground geometry CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 1 837
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Norm. cone resistance
Qtn
0 50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Norm. cone resistance
CPT basic interpretation plots (normalized)
Norm. friction ratio
Fr (%)
0 2 4 6 8 10
Depth (ft)
504846444240383634323028262422201816141210
8642
Norm. friction ratio Nom. pore pressure ratio
Bq
-0.2 0 0.2 0.4 0.6 0.8 1
Depth (ft)
504846444240383634323028262422201816141210
8642
Nom. pore pressure ratio SBTn Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
SBTn Plot Norm. Soil Behaviour Type
SBTn (Robertson 1990)
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Depth (ft)
504846444240383634323028262422201816141210
8642
Norm. Soil Behaviour Type
Silty sand & sandy siltSand & silty sandSilty sand & sandy siltClayClay & silty clay Silty sand & sandy silt Clay Sand & silty sand Clay & silty claySilty sand & sandy silt Very dense/stiff soil Clay Very dense/stiff soil Clay Sand & silty sand Clay & silty clayClayClay & silty clay Clay Clay & silty clayClay Clay & silty clay Clay Clay & silty clay Clay & silty clay Clay Clay Sand & silty sand CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 3Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq SBTn legend
1. Sensitive fine grained
2. Organic material3. Clay to silty clay
4. Clayey silt to silty5. Silty sand to sandy silt6. Clean sand to silty sand
7. Gravely sand to sand8. Very stiff sand to9. Very stiff fine grained Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6620.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
20.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
838
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Norm. cone resistance
qc1N
50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Norm. cone resistance
Liquefaction analysis overall plots (intermediate results) SBTn Index
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
SBTn Index Apparent fines content
FC (%)
0 50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Apparent fines content "Fines" adjustment
Delta qc1N
0 1 2 3 4 5 6 7 8 9 10
Depth (ft)
504846444240383634323028262422201816141210
8642
"Fines" adjustment Corrected norm. cone resistance
qc1N,cs
0 50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Corrected norm. cone resistance
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 4Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6620.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
20.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
839
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 CRR plot
CRR & CSR
0 0.2 0.4 0.6
Depth (ft)
504846444240383634323028262422201816141210
8642
CRR plot
During earthq.
Liquefaction analysis overall plots
FS Plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
504846444240383634323028262422201816141210
8642
FS Plot
During earthq.
Liquefaction potential
LPI
0 5 10 15 20
Depth (ft)
504846444240383634323028262422201816141210
8642
Liquefaction potential Vertical settlements
Settlement (in)
0 0.1 0.2 0.3
Depth (ft)
504846444240383634323028262422201816141210
8642
Vertical settlements Lateral displacements
LDI
0 0.5 1 1.5 2 2.5
Depth (ft)
504846444240383634323028262422201816141210
8642
Lateral displacements
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 5Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6620.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
20.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
F.S. color scheme LPI color scheme
Almost certain it will liquefy
Very likely to liquefyLiquefaction and no liq. are equally likelyUnlike to liquefy Almost certain it will not liquefy
Very high riskHigh riskLow risk
840
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Normalized friction ratio (%)
0.1 1 10
Normalized CPT penetration resistance
1 10
100
1,000
Liquefaction analysis summary plots
qc1N,cs
0 20 40 60 80 100 120 140 160 180 200
Cyclic Stress Ratio*(CSR*)
0.80.70.60.50.40.30.20.1 0
Liquefaction
No Liquefaction
Thickness of surface layer, H1 (m)
0 1 2 3 4 5 6 7 8 9 10
Thickness of liquefiable sand layer, H2 (m)
12.011.010.0
9.08.07.06.05.04.03.02.01.00.0 Analysis PGA: 0.66
PGA
0.40g - 0.50g
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 6Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6620.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
20.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
841
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Norm. cone resistance
qc1N
50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Norm. cone resistance
Check for strength loss plots (Idriss & Boulanger (2008)) Residual strength correction
Delta qc1N-Sr
0 1 2 3 4 5 6 7 8 9 10
Depth (ft)
504846444240383634323028262422201816141210
8642
Residual strength correction Corrected norm. cone resistance qc1Ncs-Sr
0 50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Corrected norm. cone resistance SBTn Index
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
SBTn Index Liquefied Su/Sig'v
Su/Sig'v
0 0.1 0.2 0.3 0.4 0.5
Depth (ft)
504846444240383634323028262422201816141210
8642
Peak Su ratio Liq. Su ratio
Liquefied Su/Sig'v
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 7Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6620.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
20.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
842
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Cone resistance
qt (tsf)
50 100 150 200 250
Depth (ft)
504846444240383634323028262422201816141210
8642
Cone resistance SBTn Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
SBTn Plot FS Plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
504846444240383634323028262422201816141210
8642
FS Plot
During earthq.
Vertical settlements
Settlement (in)
0 0.1 0.2 0.3
Depth (ft)
504846444240383634323028262422201816141210
8642
Vertical settlements
Estimation of post-earthquake settlements
Strain plot
Volumentric strain (%)
0 1 2 3 4 5 6
Depth (ft)
504846444240383634323028262422201816141210
8642
Strain plot
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 35Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Abbreviationsqt:
Ic:
FS:
Volumentric strain:
Total cone resistance (cone resistance qc corrected for pore water effects) Soil Behaviour Type IndexCalculated Factor of Safety against liquefactionPost-liquefaction volumentric strain 843
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Post-earthquake settlement of dry sands ::
Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
0.33 2.12 42.17 1.45 61.16 13 346 0.38 0.003 0.01 10.85 0.00 0.000
0.49 1.85 76.97 1.20 92.10 18 446 0.37 0.003 0.00 10.85 0.00 0.000
0.66 1.64 127.62 1.00 127.62 23 573 0.36 0.003 0.00 10.85 0.00 0.000
0.82 1.60 161.72 1.00 161.72 29 686 0.33 0.004 0.00 10.85 0.00 0.000
0.98 1.59 185.75 1.00 185.75 33 776 0.32 0.004 0.00 10.85 0.00 0.000
1.15 1.62 192.85 1.00 192.85 35 837 0.32 0.004 0.00 10.85 0.00 0.000
1.31 1.64 189.20 1.00 189.20 35 845 0.32 0.005 0.00 10.85 0.00 0.000
1.48 1.67 178.36 1.00 178.36 33 828 0.33 0.006 0.00 10.85 0.00 0.000
1.64 1.69 162.39 1.00 162.39 30 777 0.34 0.007 0.00 10.85 0.00 0.000
1.80 1.74 142.29 1.07 152.18 29 723 0.35 0.009 0.01 10.85 0.00 0.000
1.97 1.78 124.01 1.13 140.22 27 663 0.37 0.012 0.01 10.85 0.01 0.000
2.13 1.81 109.75 1.17 128.08 25 611 0.37 0.015 0.01 10.85 0.01 0.000
2.30 1.81 102.56 1.17 119.78 23 571 0.37 0.019 0.02 10.85 0.01 0.001
2.46 1.81 98.10 1.16 114.04 22 543 0.37 0.024 0.02 10.85 0.02 0.001
2.62 1.81 95.99 1.16 111.42 22 530 0.37 0.028 0.03 10.85 0.02 0.001
2.79 1.80 95.50 1.16 110.48 21 525 0.37 0.032 0.03 10.85 0.03 0.001
2.95 1.80 95.11 1.15 109.70 21 521 0.37 0.036 0.03 10.85 0.03 0.001
3.12 1.80 93.86 1.15 108.32 21 514 0.37 0.041 0.04 10.85 0.03 0.001
3.28 1.81 92.13 1.16 106.88 21 508 0.37 0.046 0.04 10.85 0.04 0.001
3.45 1.81 90.78 1.16 105.71 21 504 0.37 0.052 0.05 10.85 0.04 0.002
3.61 1.81 89.85 1.16 104.61 20 498 0.37 0.058 0.06 10.85 0.05 0.002
3.77 1.81 88.61 1.17 103.31 20 492 0.37 0.066 0.07 10.85 0.06 0.002
3.94 1.82 87.31 1.17 102.36 20 489 0.37 0.073 0.07 10.85 0.06 0.003
4.10 1.83 86.33 1.18 101.88 20 489 0.37 0.079 0.08 10.85 0.07 0.003
4.27 1.83 86.48 1.18 102.45 20 493 0.37 0.083 0.08 10.85 0.07 0.003
4.43 1.83 88.50 1.18 104.68 20 503 0.37 0.083 0.08 10.85 0.07 0.003
4.59 1.82 94.16 1.17 110.41 21 528 0.37 0.076 0.07 10.85 0.06 0.002
4.76 1.80 104.32 1.15 120.17 23 570 0.37 0.063 0.05 10.85 0.05 0.002
4.92 1.78 116.14 1.13 131.49 25 622 0.36 0.052 0.04 10.85 0.03 0.001
5.09 1.81 122.98 1.17 143.32 0 0 0.36 0.000 0.00 0.00 0.00 0.000
5.25 1.94 116.80 1.26 147.50 0 0 0.34 0.000 0.00 0.00 0.00 0.000
5.41 2.14 97.03 1.49 144.78 0 0 0.34 0.000 0.00 0.00 0.00 0.000
5.58 2.40 70.77 2.35 166.57 0 0 0.35 0.000 0.00 0.00 0.00 0.000
5.74 2.63 49.45 3.98 196.89 0 0 0.37 0.000 0.00 0.00 0.00 0.000
5.91 2.77 38.40 5.47 209.91 0 0 0.37 0.000 0.00 0.00 0.00 0.000
6.07 2.80 36.73 5.82 213.95 0 0 0.37 0.000 0.00 0.00 0.00 0.000
6.23 2.77 40.35 5.54 223.41 0 0 0.37 0.000 0.00 0.00 0.00 0.000
6.40 2.73 46.55 5.08 236.24 0 0 0.36 0.000 0.00 0.00 0.00 0.000
6.56 2.69 52.79 4.64 245.22 0 0 0.36 0.000 0.00 0.00 0.00 0.000
6.73 2.66 57.48 4.29 246.86 0 0 0.36 0.000 0.00 0.00 0.00 0.000
6.89 2.64 58.70 4.13 242.58 0 0 0.36 0.000 0.00 0.00 0.00 0.000
7.05 2.65 55.79 4.18 233.18 0 0 0.36 0.000 0.00 0.00 0.00 0.000
7.22 2.67 50.21 4.39 220.65 0 0 0.36 0.000 0.00 0.00 0.00 0.000
7.38 2.72 44.25 4.89 216.16 0 0 0.37 0.000 0.00 0.00 0.00 0.000
7.55 2.77 40.38 5.47 220.68 0 0 0.37 0.000 0.00 0.00 0.00 0.000
7.71 2.81 38.55 5.98 230.66 0 0 0.37 0.000 0.00 0.00 0.00 0.000
7.87 2.83 37.51 6.24 233.93 0 0 0.37 0.000 0.00 0.00 0.00 0.000
8.04 2.83 36.86 6.21 228.94 0 0 0.37 0.000 0.00 0.00 0.00 0.000 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 36 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 844
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Post-earthquake settlement of dry sands :: (continued) Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
8.20 2.80 37.91 5.81 220.38 0 0 0.37 0.000 0.00 0.00 0.00 0.000
8.37 2.70 43.10 4.74 204.17 0 0 0.37 0.000 0.00 0.00 0.00 0.000
8.53 2.63 49.30 4.02 197.97 0 0 0.37 0.000 0.00 0.00 0.00 0.000
8.69 2.59 54.10 3.69 199.60 54 808 0.37 0.069 0.02 10.85 0.02 0.001
8.86 2.61 54.94 3.87 212.58 0 0 0.37 0.000 0.00 0.00 0.00 0.000
9.02 2.66 52.89 4.26 225.31 0 0 0.37 0.000 0.00 0.00 0.00 0.000
9.19 2.69 50.26 4.58 230.01 0 0 0.37 0.000 0.00 0.00 0.00 0.000
9.35 2.65 50.88 4.24 215.84 0 0 0.37 0.000 0.00 0.00 0.00 0.000
9.51 2.51 58.70 3.07 180.40 0 0 0.37 0.000 0.00 0.00 0.00 0.000
9.68 2.33 68.01 2.03 138.23 0 0 0.36 0.000 0.00 0.00 0.00 0.000
9.84 2.19 77.13 1.59 122.32 0 0 0.36 0.000 0.00 0.00 0.00 0.000
10.01 2.16 81.95 1.52 124.55 0 0 0.36 0.000 0.00 0.00 0.00 0.000
10.17 2.27 78.09 1.82 142.30 0 0 0.36 0.000 0.00 0.00 0.00 0.000
10.34 2.44 66.43 2.58 171.15 0 0 0.37 0.000 0.00 0.00 0.00 0.000
10.50 2.62 51.14 3.90 199.54 0 0 0.38 0.000 0.00 0.00 0.00 0.000
10.66 2.73 39.77 4.99 198.55 0 0 0.38 0.000 0.00 0.00 0.00 0.000
10.83 2.77 32.16 5.48 176.12 0 0 0.38 0.000 0.00 0.00 0.00 0.000
10.99 2.78 26.81 5.60 150.11 0 0 0.39 0.000 0.00 0.00 0.00 0.000
11.16 2.75 25.55 5.22 133.49 0 0 0.39 0.000 0.00 0.00 0.00 0.000
11.32 2.63 31.90 4.00 127.53 0 0 0.39 0.000 0.00 0.00 0.00 0.000
11.48 2.31 57.34 1.97 112.69 0 0 0.38 0.000 0.00 0.00 0.00 0.000
11.65 2.01 99.91 1.31 131.35 0 0 0.36 0.000 0.00 0.00 0.00 0.000
11.81 1.86 140.78 1.21 169.75 0 0 0.34 0.000 0.00 0.00 0.00 0.000
11.98 1.86 155.06 1.21 187.89 0 0 0.33 0.000 0.00 0.00 0.00 0.000
12.14 2.01 132.13 1.31 173.48 0 0 0.33 0.000 0.00 0.00 0.00 0.000
12.30 2.23 95.69 1.69 162.17 0 0 0.36 0.000 0.00 0.00 0.00 0.000
12.47 2.45 66.75 2.67 178.44 0 0 0.37 0.000 0.00 0.00 0.00 0.000
12.63 2.58 56.93 3.61 205.35 0 0 0.38 0.000 0.00 0.00 0.00 0.000
12.80 2.62 57.07 3.90 222.74 0 0 0.37 0.000 0.00 0.00 0.00 0.000
12.96 2.47 75.02 2.80 210.39 0 0 0.37 0.000 0.00 0.00 0.00 0.000
13.12 2.22 113.06 1.65 186.88 0 0 0.34 0.000 0.00 0.00 0.00 0.000
13.29 1.97 153.26 1.29 197.16 0 0 0.32 0.000 0.00 0.00 0.00 0.000
13.45 1.85 171.19 1.20 206.15 0 0 0.32 0.000 0.00 0.00 0.00 0.000
13.62 1.88 158.82 1.22 194.00 39 1393 0.33 0.040 0.02 10.85 0.02 0.001
13.78 2.00 135.37 1.31 176.85 37 1380 0.34 0.042 0.02 10.85 0.02 0.001
13.94 2.09 119.90 1.41 168.75 36 1374 0.34 0.043 0.02 10.85 0.02 0.001
14.11 2.03 125.27 1.34 167.51 35 1350 0.35 0.045 0.02 10.85 0.02 0.001
14.27 1.94 138.13 1.27 174.95 36 1352 0.33 0.046 0.02 10.85 0.02 0.001
14.44 1.92 147.83 1.25 184.91 0 0 0.33 0.000 0.00 0.00 0.00 0.000
14.60 2.03 140.89 1.34 188.55 0 0 0.32 0.000 0.00 0.00 0.00 0.000
14.76 2.21 122.46 1.64 201.23 0 0 0.32 0.000 0.00 0.00 0.00 0.000
14.93 2.36 99.54 2.19 217.98 0 0 0.35 0.000 0.00 0.00 0.00 0.000
15.09 2.51 77.04 3.07 236.20 0 0 0.36 0.000 0.00 0.00 0.00 0.000
15.26 2.62 59.66 3.93 234.28 0 0 0.37 0.000 0.00 0.00 0.00 0.000
15.42 2.70 49.10 4.69 230.25 0 0 0.38 0.000 0.00 0.00 0.00 0.000
15.58 2.72 44.03 4.89 215.29 0 0 0.38 0.000 0.00 0.00 0.00 0.000
15.75 2.70 42.39 4.72 199.89 0 0 0.38 0.000 0.00 0.00 0.00 0.000
15.91 2.71 40.13 4.77 191.32 0 0 0.38 0.000 0.00 0.00 0.00 0.000 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 37 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 845
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Post-earthquake settlement of dry sands :: (continued) Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
16.08 2.71 38.40 4.86 186.80 0 0 0.38 0.000 0.00 0.00 0.00 0.000
16.24 2.72 38.24 4.89 186.95 0 0 0.39 0.000 0.00 0.00 0.00 0.000
16.40 2.72 40.08 4.93 197.70 0 0 0.38 0.000 0.00 0.00 0.00 0.000
16.57 2.69 46.29 4.59 212.49 0 0 0.38 0.000 0.00 0.00 0.00 0.000
16.73 2.59 60.69 3.63 220.35 59 1471 0.38 0.048 0.01 10.85 0.01 0.000
16.90 2.50 74.00 2.99 221.32 57 1630 0.36 0.041 0.01 10.85 0.01 0.000
17.06 2.50 72.68 3.01 218.69 56 1621 0.36 0.042 0.01 10.85 0.01 0.000
17.23 2.58 58.49 3.55 207.74 56 1441 0.38 0.053 0.02 10.85 0.01 0.001
17.39 2.71 40.87 4.77 194.90 0 0 0.38 0.000 0.00 0.00 0.00 0.000
17.55 2.76 32.54 5.37 174.69 0 0 0.39 0.000 0.00 0.00 0.00 0.000
17.72 2.76 29.63 5.42 160.62 0 0 0.39 0.000 0.00 0.00 0.00 0.000
17.88 2.76 29.47 5.40 159.05 0 0 0.39 0.000 0.00 0.00 0.00 0.000
18.05 2.78 30.61 5.57 170.40 0 0 0.39 0.000 0.00 0.00 0.00 0.000
18.21 2.80 31.80 5.89 187.44 0 0 0.39 0.000 0.00 0.00 0.00 0.000
18.37 2.74 37.63 5.16 194.23 0 0 0.39 0.000 0.00 0.00 0.00 0.000
18.54 2.48 58.57 2.87 168.37 0 0 0.38 0.000 0.00 0.00 0.00 0.000
18.70 2.16 97.31 1.52 148.28 0 0 0.36 0.000 0.00 0.00 0.00 0.000
18.87 1.95 134.15 1.27 170.44 0 0 0.34 0.000 0.00 0.00 0.00 0.000
19.03 1.89 151.10 1.23 186.33 0 0 0.34 0.000 0.00 0.00 0.00 0.000
19.19 2.00 131.82 1.31 172.28 0 0 0.34 0.000 0.00 0.00 0.00 0.000
19.36 2.18 95.56 1.57 150.03 0 0 0.36 0.000 0.00 0.00 0.00 0.000
19.52 2.40 59.12 2.39 141.11 0 0 0.38 0.000 0.00 0.00 0.00 0.000
19.69 2.55 38.96 3.38 131.57 0 0 0.39 0.000 0.00 0.00 0.00 0.000
19.85 2.55 33.35 3.37 112.35 30 907 0.39 0.224 0.14 10.85 0.12 0.005 Total estimated settlement: 0.04
Abbreviations
Qtn:
Kc:
Qtn,cs:
Gmax:
CSR:
γ:
evol(15):
Nc:
ev:
Settle.:
Normalized cone resistance
Fines correction factor
Equivalent clean sand normalized cone resistance
Small strain shear modulus
Soil cyclic stress ratio
Cyclic shear strain
Volumetric strain after 15 cycles
Equivalent number of cycles
Volumetric strain
Calculated settlement
:: Post-earthquake settlement due to soil liquefaction ::
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
20.01 96.03 0.34 3.35 0.06 1.00 20.18 96.76 0.34 3.32 0.07 1.00
20.34 100.97 0.36 3.18 0.06 1.00 20.51 42.61 2.00 0.00 0.00 1.00
20.67 42.26 2.00 0.00 0.00 1.00 20.83 42.99 2.00 0.00 0.00 1.00
21.00 40.77 2.00 0.00 0.00 1.00 21.16 38.91 2.00 0.00 0.00 1.00
21.33 38.57 2.00 0.00 0.00 1.00 21.49 36.20 2.00 0.00 0.00 1.00
21.65 37.62 2.00 0.00 0.00 1.00 21.82 37.80 2.00 0.00 0.00 1.00
21.98 38.17 2.00 0.00 0.00 1.00 22.15 38.61 2.00 0.00 0.00 1.00
22.31 38.36 2.00 0.00 0.00 1.00 22.47 37.94 2.00 0.00 0.00 1.00
22.64 38.21 2.00 0.00 0.00 1.00 22.80 36.57 2.00 0.00 0.00 1.00
22.97 36.75 2.00 0.00 0.00 1.00 23.13 37.20 2.00 0.00 0.00 1.00
23.30 37.12 2.00 0.00 0.00 1.00 23.46 37.23 2.00 0.00 0.00 1.00 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 38 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 846
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Post-earthquake settlement due to soil liquefaction :: (continued) Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
23.62 38.45 2.00 0.00 0.00 1.00 23.79 37.85 2.00 0.00 0.00 1.00
23.95 34.95 2.00 0.00 0.00 1.00 24.12 31.63 2.00 0.00 0.00 1.00
24.28 28.60 2.00 0.00 0.00 1.00 24.44 27.19 2.00 0.00 0.00 1.00
24.61 26.96 2.00 0.00 0.00 1.00 24.77 25.81 2.00 0.00 0.00 1.00
24.94 23.67 2.00 0.00 0.00 1.00 25.10 22.53 2.00 0.00 0.00 1.00
25.26 21.25 2.00 0.00 0.00 1.00 25.43 20.87 2.00 0.00 0.00 1.00
25.59 27.75 2.00 0.00 0.00 1.00 25.76 28.69 2.00 0.00 0.00 1.00
25.92 27.81 2.00 0.00 0.00 1.00 26.08 26.59 2.00 0.00 0.00 1.00
26.25 26.96 2.00 0.00 0.00 1.00 26.41 26.99 2.00 0.00 0.00 1.00
26.58 26.78 2.00 0.00 0.00 1.00 26.74 25.33 2.00 0.00 0.00 1.00
26.90 25.45 2.00 0.00 0.00 1.00 27.07 26.38 2.00 0.00 0.00 1.00
27.23 26.83 2.00 0.00 0.00 1.00 27.40 26.62 2.00 0.00 0.00 1.00
27.56 26.24 2.00 0.00 0.00 1.00 27.72 27.50 2.00 0.00 0.00 1.00
27.89 30.33 2.00 0.00 0.00 1.00 28.05 27.48 2.00 0.00 0.00 1.00
28.22 28.17 2.00 0.00 0.00 1.00 28.38 29.92 2.00 0.00 0.00 1.00
28.54 29.37 2.00 0.00 0.00 1.00 28.71 29.07 2.00 0.00 0.00 1.00
28.87 28.20 2.00 0.00 0.00 1.00 29.04 26.52 2.00 0.00 0.00 1.00
29.20 24.38 2.00 0.00 0.00 1.00 29.36 24.90 2.00 0.00 0.00 1.00
29.53 24.21 2.00 0.00 0.00 1.00 29.69 25.06 2.00 0.00 0.00 1.00
29.86 25.41 2.00 0.00 0.00 1.00 30.02 26.81 2.00 0.00 0.00 1.00
30.19 25.96 2.00 0.00 0.00 1.00 30.35 27.44 2.00 0.00 0.00 1.00
30.51 27.63 2.00 0.00 0.00 1.00 30.68 28.22 2.00 0.00 0.00 1.00
30.84 27.85 2.00 0.00 0.00 1.00 31.01 27.72 2.00 0.00 0.00 1.00
31.17 27.60 2.00 0.00 0.00 1.00 31.33 26.04 2.00 0.00 0.00 1.00
31.50 23.47 2.00 0.00 0.00 1.00 31.66 21.78 2.00 0.00 0.00 1.00
31.83 22.37 2.00 0.00 0.00 1.00 31.99 22.96 2.00 0.00 0.00 1.00
32.15 25.59 2.00 0.00 0.00 1.00 32.32 21.01 2.00 0.00 0.00 1.00
32.48 18.88 2.00 0.00 0.00 1.00 32.65 19.31 2.00 0.00 0.00 1.00
32.81 21.21 2.00 0.00 0.00 1.00 32.97 22.88 2.00 0.00 0.00 1.00
33.14 23.62 2.00 0.00 0.00 1.00 33.30 25.14 2.00 0.00 0.00 1.00
33.47 25.56 2.00 0.00 0.00 1.00 33.63 25.75 2.00 0.00 0.00 1.00
33.79 26.02 2.00 0.00 0.00 1.00 33.96 25.19 2.00 0.00 0.00 1.00
34.12 22.69 2.00 0.00 0.00 1.00 34.29 22.19 2.00 0.00 0.00 1.00
34.45 22.54 2.00 0.00 0.00 1.00 34.61 24.66 2.00 0.00 0.00 1.00
34.78 24.53 2.00 0.00 0.00 1.00 34.94 27.81 2.00 0.00 0.00 1.00
35.11 25.29 2.00 0.00 0.00 1.00 35.27 22.81 2.00 0.00 0.00 1.00
35.43 22.78 2.00 0.00 0.00 1.00 35.60 23.88 2.00 0.00 0.00 1.00
35.76 25.44 2.00 0.00 0.00 1.00 35.93 28.14 2.00 0.00 0.00 1.00
36.09 31.32 2.00 0.00 0.00 1.00 36.26 32.74 2.00 0.00 0.00 1.00
36.42 38.52 2.00 0.00 0.00 1.00 36.58 45.89 2.00 0.00 0.00 1.00
36.75 45.98 2.00 0.00 0.00 1.00 36.91 39.14 2.00 0.00 0.00 1.00
37.08 34.11 2.00 0.00 0.00 1.00 37.24 31.68 2.00 0.00 0.00 1.00
37.40 32.24 2.00 0.00 0.00 1.00 37.57 35.41 2.00 0.00 0.00 1.00
37.73 38.04 2.00 0.00 0.00 1.00 37.90 32.98 2.00 0.00 0.00 1.00
38.06 26.58 2.00 0.00 0.00 1.00 38.22 25.69 2.00 0.00 0.00 1.00
38.39 59.88 2.00 0.00 0.00 1.00 38.55 182.70 1.83 0.07 0.00 1.00
38.72 64.54 2.00 0.00 0.00 1.00 38.88 56.64 2.00 0.00 0.00 1.00
39.04 47.68 2.00 0.00 0.00 1.00 39.21 35.97 2.00 0.00 0.00 1.00 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 39 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 847
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Post-earthquake settlement due to soil liquefaction :: (continued) Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
39.37 32.96 2.00 0.00 0.00 1.00 39.54 29.30 2.00 0.00 0.00 1.00
39.70 29.49 2.00 0.00 0.00 1.00 39.86 32.60 2.00 0.00 0.00 1.00
40.03 40.31 2.00 0.00 0.00 1.00 40.19 33.23 2.00 0.00 0.00 1.00
40.36 39.00 2.00 0.00 0.00 1.00 40.52 144.68 2.00 0.00 0.00 1.00
40.68 163.55 2.00 0.00 0.00 1.00 40.85 165.52 0.95 0.89 0.02 1.00
41.01 153.33 0.67 1.99 0.04 1.00 41.18 55.89 2.00 0.00 0.00 1.00
41.34 46.17 2.00 0.00 0.00 1.00 41.50 60.08 2.00 0.00 0.00 1.00
41.67 68.53 2.00 0.00 0.00 1.00 41.83 64.22 2.00 0.00 0.00 1.00
42.00 45.82 2.00 0.00 0.00 1.00 42.16 33.86 2.00 0.00 0.00 1.00
42.32 26.33 2.00 0.00 0.00 1.00 42.49 30.76 2.00 0.00 0.00 1.00
42.65 30.45 2.00 0.00 0.00 1.00 42.82 59.01 2.00 0.00 0.00 1.00
42.98 165.11 0.93 0.93 0.02 1.00 43.15 142.74 0.52 2.19 0.04 1.00
43.31 51.75 2.00 0.00 0.00 1.00 43.47 53.42 2.00 0.00 0.00 1.00
43.64 56.88 2.00 0.00 0.00 1.00 43.80 43.90 2.00 0.00 0.00 1.00
43.97 58.59 2.00 0.00 0.00 1.00 44.13 45.06 2.00 0.00 0.00 1.00
44.29 42.12 2.00 0.00 0.00 1.00 44.46 32.97 2.00 0.00 0.00 1.00
44.62 28.10 2.00 0.00 0.00 1.00 44.79 57.16 2.00 0.00 0.00 1.00
44.95 186.17 2.00 0.00 0.00 1.00 45.11 163.11 0.87 1.08 0.02 1.00
45.28 178.82 1.51 0.25 0.01 1.00 45.44 182.57 1.76 0.11 0.00 1.00
45.61 73.54 2.00 0.00 0.00 1.00 45.77 52.86 2.00 0.00 0.00 1.00
45.93 54.88 2.00 0.00 0.00 1.00 46.10 49.03 2.00 0.00 0.00 1.00
46.26 48.90 2.00 0.00 0.00 1.00 46.43 39.51 2.00 0.00 0.00 1.00
46.59 36.00 2.00 0.00 0.00 1.00 46.75 41.21 2.00 0.00 0.00 1.00
46.92 50.41 2.00 0.00 0.00 1.00 47.08 48.86 2.00 0.00 0.00 1.00
47.25 52.83 2.00 0.00 0.00 1.00 47.41 55.98 2.00 0.00 0.00 1.00
47.57 48.83 2.00 0.00 0.00 1.00 47.74 79.63 2.00 0.00 0.00 1.00
47.90 76.77 2.00 0.00 0.00 1.00 48.07 55.54 2.00 0.00 0.00 1.00
48.23 67.91 2.00 0.00 0.00 1.00 48.39 94.08 2.00 0.00 0.00 1.00
48.56 228.75 2.00 0.00 0.00 1.00 48.72 217.41 2.00 0.00 0.00 1.00
48.89 219.30 2.00 0.00 0.00 1.00 49.05 220.56 2.00 0.00 0.00 1.00
49.22 193.78 2.00 0.00 0.00 1.00 49.38 204.82 2.00 0.00 0.00 1.00
49.54 227.31 2.00 0.00 0.00 1.00 49.71 273.10 2.00 0.00 0.00 1.00
49.87 277.86 2.00 0.00 0.00 1.00
Total estimated settlement: 0.34
Abbreviations
Qtn,cs:
FS:
ev (%):
DF:
Settlement:
Equivalent clean sand normalized cone resistance
Factor of safety against liquefaction
Post-liquefaction volumentric strain
ev depth weighting factor
Calculated settlement
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 40 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 848
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Cone resistance
qt (tsf)
100 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Cone resistance SBTn Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
SBTn Plot Corrected norm. cone resista
qc1N,cs
0 50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Corrected norm. cone resista FS Plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
504846444240383634323028262422201816141210
8642
FS Plot
During earthq.
Cyclic shear strain
Gamma max (%)
0 10 20 30 40 50 60
Depth (ft)
504846444240383634323028262422201816141210
8642
Cyclic shear strain Lateral displacements
LDI
0 1 2
Depth (ft)
504846444240383634323028262422201816141210
8642
Lateral displacements
Estimation of post-earthquake lateral Displacements
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 41Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq qt: Total cone resistance (cone resistance qc corrected for pore water effects) Ic: Soil Behaviour Type Index
qc1N,cs: Equivalent clean sand normalized CPT total cone resistance F.S.: Factor of safetyγmax: Maximum cyclic shear strain LDI: Lateral displacement index
Abbreviations
849
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Lateral displacement index calculation ::
Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
20.01 96.03 0.34 0.34 0.82 0.34 0.65
20.18 96.76 0.33 0.34 0.82 0.33 0.68
20.34 100.97 0.30 0.36 0.78 0.30 0.58
20.51 42.61 0.00 2.00 0.00 0.00 0.00
20.67 42.26 0.00 2.00 0.00 0.00 0.00
20.83 42.99 0.00 2.00 0.00 0.00 0.00
21.00 40.77 0.00 2.00 0.00 0.00 0.00
21.16 38.91 0.00 2.00 0.00 0.00 0.00
21.33 38.57 0.00 2.00 0.00 0.00 0.00
21.49 36.20 0.00 2.00 0.00 0.00 0.00
21.65 37.62 0.00 2.00 0.00 0.00 0.00
21.82 37.80 0.00 2.00 0.00 0.00 0.00
21.98 38.17 0.00 2.00 0.00 0.00 0.00
22.15 38.61 0.00 2.00 0.00 0.00 0.00
22.31 38.36 0.00 2.00 0.00 0.00 0.00
22.47 37.94 0.00 2.00 0.00 0.00 0.00
22.64 38.21 0.00 2.00 0.00 0.00 0.00
22.80 36.57 0.00 2.00 0.00 0.00 0.00
22.97 36.75 0.00 2.00 0.00 0.00 0.00
23.13 37.20 0.00 2.00 0.00 0.00 0.00
23.30 37.12 0.00 2.00 0.00 0.00 0.00
23.46 37.23 0.00 2.00 0.00 0.00 0.00
23.62 38.45 0.00 2.00 0.00 0.00 0.00
23.79 37.85 0.00 2.00 0.00 0.00 0.00
23.95 34.95 0.00 2.00 0.00 0.00 0.00
24.12 31.63 0.00 2.00 0.00 0.00 0.00
24.28 28.60 0.00 2.00 0.00 0.00 0.00
24.44 27.19 0.00 2.00 0.00 0.00 0.00
24.61 26.96 0.00 2.00 0.00 0.00 0.00
24.77 25.81 0.00 2.00 0.00 0.00 0.00
24.94 23.67 0.00 2.00 0.00 0.00 0.00
25.10 22.53 0.00 2.00 0.00 0.00 0.00
25.26 21.25 0.00 2.00 0.00 0.00 0.00
25.43 20.87 0.00 2.00 0.00 0.00 0.00
25.59 27.75 0.00 2.00 0.00 0.00 0.00
25.76 28.69 0.00 2.00 0.00 0.00 0.00
25.92 27.81 0.00 2.00 0.00 0.00 0.00
26.08 26.59 0.00 2.00 0.00 0.00 0.00
26.25 26.96 0.00 2.00 0.00 0.00 0.00
26.41 26.99 0.00 2.00 0.00 0.00 0.00
26.58 26.78 0.00 2.00 0.00 0.00 0.00
26.74 25.33 0.00 2.00 0.00 0.00 0.00
26.90 25.45 0.00 2.00 0.00 0.00 0.00
27.07 26.38 0.00 2.00 0.00 0.00 0.00
27.23 26.83 0.00 2.00 0.00 0.00 0.00
27.40 26.62 0.00 2.00 0.00 0.00 0.00
27.56 26.24 0.00 2.00 0.00 0.00 0.00
27.72 27.50 0.00 2.00 0.00 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 42 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 850
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
27.89 30.33 0.00 2.00 0.00 0.00 0.00
28.05 27.48 0.00 2.00 0.00 0.00 0.00
28.22 28.17 0.00 2.00 0.00 0.00 0.00
28.38 29.92 0.00 2.00 0.00 0.00 0.00
28.54 29.37 0.00 2.00 0.00 0.00 0.00
28.71 29.07 0.00 2.00 0.00 0.00 0.00
28.87 28.20 0.00 2.00 0.00 0.00 0.00
29.04 26.52 0.00 2.00 0.00 0.00 0.00
29.20 24.38 0.00 2.00 0.00 0.00 0.00
29.36 24.90 0.00 2.00 0.00 0.00 0.00
29.53 24.21 0.00 2.00 0.00 0.00 0.00
29.69 25.06 0.00 2.00 0.00 0.00 0.00
29.86 25.41 0.00 2.00 0.00 0.00 0.00
30.02 26.81 0.00 2.00 0.00 0.00 0.00
30.19 25.96 0.00 2.00 0.00 0.00 0.00
30.35 27.44 0.00 2.00 0.00 0.00 0.00
30.51 27.63 0.00 2.00 0.00 0.00 0.00
30.68 28.22 0.00 2.00 0.00 0.00 0.00
30.84 27.85 0.00 2.00 0.00 0.00 0.00
31.01 27.72 0.00 2.00 0.00 0.00 0.00
31.17 27.60 0.00 2.00 0.00 0.00 0.00
31.33 26.04 0.00 2.00 0.00 0.00 0.00
31.50 23.47 0.00 2.00 0.00 0.00 0.00
31.66 21.78 0.00 2.00 0.00 0.00 0.00
31.83 22.37 0.00 2.00 0.00 0.00 0.00
31.99 22.96 0.00 2.00 0.00 0.00 0.00
32.15 25.59 0.00 2.00 0.00 0.00 0.00
32.32 21.01 0.00 2.00 0.00 0.00 0.00
32.48 18.88 0.00 2.00 0.00 0.00 0.00
32.65 19.31 0.00 2.00 0.00 0.00 0.00
32.81 21.21 0.00 2.00 0.00 0.00 0.00
32.97 22.88 0.00 2.00 0.00 0.00 0.00
33.14 23.62 0.00 2.00 0.00 0.00 0.00
33.30 25.14 0.00 2.00 0.00 0.00 0.00
33.47 25.56 0.00 2.00 0.00 0.00 0.00
33.63 25.75 0.00 2.00 0.00 0.00 0.00
33.79 26.02 0.00 2.00 0.00 0.00 0.00
33.96 25.19 0.00 2.00 0.00 0.00 0.00
34.12 22.69 0.00 2.00 0.00 0.00 0.00
34.29 22.19 0.00 2.00 0.00 0.00 0.00
34.45 22.54 0.00 2.00 0.00 0.00 0.00
34.61 24.66 0.00 2.00 0.00 0.00 0.00
34.78 24.53 0.00 2.00 0.00 0.00 0.00
34.94 27.81 0.00 2.00 0.00 0.00 0.00
35.11 25.29 0.00 2.00 0.00 0.00 0.00
35.27 22.81 0.00 2.00 0.00 0.00 0.00
35.43 22.78 0.00 2.00 0.00 0.00 0.00
35.60 23.88 0.00 2.00 0.00 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 43 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 851
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
35.76 25.44 0.00 2.00 0.00 0.00 0.00
35.93 28.14 0.00 2.00 0.00 0.00 0.00
36.09 31.32 0.00 2.00 0.00 0.00 0.00
36.26 32.74 0.00 2.00 0.00 0.00 0.00
36.42 38.52 0.00 2.00 0.00 0.00 0.00
36.58 45.89 0.00 2.00 0.00 0.00 0.00
36.75 45.98 0.00 2.00 0.00 0.00 0.00
36.91 39.14 0.00 2.00 0.00 0.00 0.00
37.08 34.11 0.00 2.00 0.00 0.00 0.00
37.24 31.68 0.00 2.00 0.00 0.00 0.00
37.40 32.24 0.00 2.00 0.00 0.00 0.00
37.57 35.41 0.00 2.00 0.00 0.00 0.00
37.73 38.04 0.00 2.00 0.00 0.00 0.00
37.90 32.98 0.00 2.00 0.00 0.00 0.00
38.06 26.58 0.00 2.00 0.00 0.00 0.00
38.22 25.69 0.00 2.00 0.00 0.00 0.00
38.39 59.88 0.00 2.00 0.00 0.00 0.00
38.55 182.70 0.04 1.83 -0.20 0.00 0.01
38.72 64.54 0.00 2.00 0.00 0.00 0.00
38.88 56.64 0.00 2.00 0.00 0.00 0.00
39.04 47.68 0.00 2.00 0.00 0.00 0.00
39.21 35.97 0.00 2.00 0.00 0.00 0.00
39.37 32.96 0.00 2.00 0.00 0.00 0.00
39.54 29.30 0.00 2.00 0.00 0.00 0.00
39.70 29.49 0.00 2.00 0.00 0.00 0.00
39.86 32.60 0.00 2.00 0.00 0.00 0.00
40.03 40.31 0.00 2.00 0.00 0.00 0.00
40.19 33.23 0.00 2.00 0.00 0.00 0.00
40.36 39.00 0.00 2.00 0.00 0.00 0.00
40.52 144.68 0.11 2.00 0.32 0.00 0.00
40.68 163.55 0.07 2.00 0.07 0.00 0.00
40.85 165.52 0.06 0.95 0.04 0.04 0.08
41.01 153.33 0.09 0.67 0.20 0.08 0.15
41.18 55.89 0.00 2.00 0.00 0.00 0.00
41.34 46.17 0.00 2.00 0.00 0.00 0.00
41.50 60.08 0.00 2.00 0.00 0.00 0.00
41.67 68.53 0.00 2.00 0.00 0.00 0.00
41.83 64.22 0.00 2.00 0.00 0.00 0.00
42.00 45.82 0.00 2.00 0.00 0.00 0.00
42.16 33.86 0.00 2.00 0.00 0.00 0.00
42.32 26.33 0.00 2.00 0.00 0.00 0.00
42.49 30.76 0.00 2.00 0.00 0.00 0.00
42.65 30.45 0.00 2.00 0.00 0.00 0.00
42.82 59.01 0.00 2.00 0.00 0.00 0.00
42.98 165.11 0.06 0.93 0.05 0.04 0.08
43.15 142.74 0.11 0.52 0.34 0.11 0.23
43.31 51.75 0.00 2.00 0.00 0.00 0.00
43.47 53.42 0.00 2.00 0.00 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 44 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 852
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
43.64 56.88 0.00 2.00 0.00 0.00 0.00
43.80 43.90 0.00 2.00 0.00 0.00 0.00
43.97 58.59 0.00 2.00 0.00 0.00 0.00
44.13 45.06 0.00 2.00 0.00 0.00 0.00
44.29 42.12 0.00 2.00 0.00 0.00 0.00
44.46 32.97 0.00 2.00 0.00 0.00 0.00
44.62 28.10 0.00 2.00 0.00 0.00 0.00
44.79 57.16 0.00 2.00 0.00 0.00 0.00
44.95 186.17 0.03 2.00 -0.25 0.00 0.00
45.11 163.11 0.07 0.87 0.07 0.05 0.09
45.28 178.82 0.04 1.51 -0.14 0.01 0.02
45.44 182.57 0.04 1.76 -0.20 0.01 0.01
45.61 73.54 0.00 2.00 0.00 0.00 0.00
45.77 52.86 0.00 2.00 0.00 0.00 0.00
45.93 54.88 0.00 2.00 0.00 0.00 0.00
46.10 49.03 0.00 2.00 0.00 0.00 0.00
46.26 48.90 0.00 2.00 0.00 0.00 0.00
46.43 39.51 0.00 2.00 0.00 0.00 0.00
46.59 36.00 0.00 2.00 0.00 0.00 0.00
46.75 41.21 0.00 2.00 0.00 0.00 0.00
46.92 50.41 0.00 2.00 0.00 0.00 0.00
47.08 48.86 0.00 2.00 0.00 0.00 0.00
47.25 52.83 0.00 2.00 0.00 0.00 0.00
47.41 55.98 0.00 2.00 0.00 0.00 0.00
47.57 48.83 0.00 2.00 0.00 0.00 0.00
47.74 79.63 0.00 2.00 0.00 0.00 0.00
47.90 76.77 0.00 2.00 0.00 0.00 0.00
48.07 55.54 0.00 2.00 0.00 0.00 0.00
48.23 67.91 0.00 2.00 0.00 0.00 0.00
48.39 94.08 0.00 2.00 0.00 0.00 0.00
48.56 228.75 0.01 2.00 -0.88 0.00 0.00
48.72 217.41 0.01 2.00 -0.71 0.00 0.00
48.89 219.30 0.01 2.00 -0.74 0.00 0.00
49.05 220.56 0.01 2.00 -0.76 0.00 0.00
49.22 193.78 0.03 2.00 -0.36 0.00 0.00
49.38 204.82 0.02 2.00 -0.52 0.00 0.00
49.54 227.31 0.01 2.00 -0.86 0.00 0.00
49.71 273.10 0.00 2.00 -1.58 0.00 0.00
49.87 277.86 0.00 2.00 -1.65 0.00 0.00
Depth:
qc1N,cs:
Gammalim:
FS:
Fa:
Gammamax:
Lat. disp.:
Depth of test point
Adjusted and corrected cone resistance due to fines
Limiting shear strain
Calculated factor of safety against liquefaction
Maximum cyclic shear strain
Lateral displacement
Abbreviations
Total estimated displacement: 2.58
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:37:51 PM 45 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 853
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Total cone resistance
qt (tsf)
50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Total cone resistance Custom Vs data
Vs (ft/s)
0 Depth (ft) 0
Custom Vs data Rigidity Index
K*G
0 Depth (ft)
504846444240383634323028262422201816141210
8642
Rigidity Index Deposit resistance factor
K(DR)
1 Depth (ft)
504846444240383634323028262422201816141210
8642
Deposit resistance factor Cyclic resistance ratio
CRR
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
Cyclic resistance ratio
Aging Calculation Estimation
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software 53Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 854
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Corrected norm. cone resistan
Qtn,cs
100 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Corrected norm. cone resista SBTn Index Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
SBTn Index Plot
zAzBzAB H1
FS plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
504846444240383634323028262422201816141210
8642
FS plot Stresses vs Depth
Stresses (tsf)
0 1 2 3
Depth (ft)
504846444240383634323028262422201816141210
8642
σv o (EQ )uo (EQ )EQu
Stresses vs Depth Excess Head
hexc (ft)
0 2 4 6 8 10
Depth (ft)
504846444240383634323028262422201816141210
8642
hexcσ'v o=0hA
Excess Head Liq. ejecta demand
LD (ton/ft)
0 10 20
Depth (ft)
4140393837363534333231302928272625242322212019181716151413121110 9876543210
LD: 0.00C R: 24.75
Liq. ejecta demand
Ejecta severity
N/A
Ejecta Severity Estimation
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software 54Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 855
LI Q UEFACTION ANALYSIS REPORT
Input parameters and analysis data
Analysis method:
Fines correction method:
Points to test:
Earthquake magnitude Mw:
Peak ground acceleration:
B&I (2014)
B&I (2014)
Based on Ic value
7.00 0.66
G.W.T. (in-situ):
G.W.T. (earthq.):
Average results interval:
Ic cut-off value:
Unit weight calculation:
Project title : G289.01 Paseo Location : Oakley Road, Oakley Baez Geotechnical Group
Geotechnical Engineers
BGG
http://www.baezgeotechnicalgroup.com
CPT file : CPT-02
20.00 ft
20.00 ft
3 2.60
Based on SBT
Use fill:
Fill height:
Fill weight:
Trans. detect. applied:
Kσ applied:
No
N/A
N/A
Yes
Yes
Clay like behavior
applied:
Limit depth applied:
Limit depth:
MSF method:
Sands only
No
N/A
Method
bd Cone resistance
qt (tsf)
100 200 300
Depth (ft)
75 70
65 60
55 50
45 40
35 30
25 20
15 10
5 0
Cone resistance SBTn Plot
Ic (Robertson 1990)
1 2 3 4
75 70
65 60
55 50
45 40
35 30
25 20
15 10
5 0
SBTn Plot CRR plot
CRR & CSR
0 0.2 0.4 0.6
75 70
65 60
55 50
45 40
35 30
25 20
15 10
5 0
CRR plot
During earthq.
qc1N,cs
0 20 40 60 80 100 120 140 160 180 200
Cyclic Stress Ratio* (CSR*)
0.8 0.7
0.6 0.5
0.4 0.3
0.2 0.1
0 Liquefaction
No Liquefaction
Normalized friction ratio (%)
0.1 1 10
Normalized CPT penetration resistance
1 10
100
1,000
Friction Ratio
Rf (%)
0 2 4 6 8 10
75 70
65 60
55 50
45 40
35 30
25 20
15 10
5 0
Friction Ratio
Mw=71/2, sigma'=1 atm base curve Summary of liquefaction potential FS Plot
Factor of safety
0 0.5 1 1.5 2
75 70
65 60
55 50
45 40
35 30
25 20
15 10
5 0
FS Plot
During earthq.
Zone A1: Cyclic liquefaction likely depending on size and duration of cyclic loading Zone A2: Cyclic liquefaction and strength loss likely depending on loading and ground geometry
Zone B: Liquefaction and post-earthquake strength loss unlikely, check cyclic softening Zone C: Cyclic liquefaction and strength loss possible depending on soil plasticity, brittleness/sensitivity, strain to peak undrained strength and ground geometry CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 1 856
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Norm. cone resistance
Qtn
0 50 100 150 200
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Norm. cone resistance
CPT basic interpretation plots (normalized)
Norm. friction ratio
Fr (%)
0 2 4 6 8 10
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Norm. friction ratio Nom. pore pressure ratio
Bq
-0.2 0 0.2 0.4 0.6 0.8 1
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Nom. pore pressure ratio SBTn Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
SBTn Plot Norm. Soil Behaviour Type
SBTn (Robertson 1990)
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Norm. Soil Behaviour Type
Sand & silty sandSilty sand & sandy silt Clay & silty clayClay Clay & silty clay Sand & silty sand ClaySand & silty sand Silty sand & sandy silt Sand & silty sandClayClay & silty clayClayClay & silty claySand & silty sand Clay & silty claySand & silty sand Silty sand & sandy silt Clay & silty clay Silty sand & sandy silt Clay & silty clay CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 3Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq SBTn legend
1. Sensitive fine grained
2. Organic material3. Clay to silty clay
4. Clayey silt to silty5. Silty sand to sandy silt6. Clean sand to silty sand
7. Gravely sand to sand8. Very stiff sand to9. Very stiff fine grained Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6620.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
20.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
857
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Norm. cone resistance
qc1N
100 200 300
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Norm. cone resistance
Liquefaction analysis overall plots (intermediate results) SBTn Index
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
SBTn Index Apparent fines content
FC (%)
0 50 100 150 200
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Apparent fines content "Fines" adjustment
Delta qc1N
0 1 2 3 4 5 6 7 8 9 10
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
"Fines" adjustment Corrected norm. cone resistance
qc1N,cs
0 50 100 150 200
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Corrected norm. cone resistance
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 4Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6620.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
20.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
858
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 CRR plot
CRR & CSR
0 0.2 0.4 0.6
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
CRR plot
During earthq.
Liquefaction analysis overall plots
FS Plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
FS Plot
During earthq.
Liquefaction potential
LPI
0 5 10 15 20
Depth (ft)
64626058565452504846444240383634323028262422201816141210 8642
Liquefaction potential Vertical settlements
Settlement (in)
0 0.5 1 1.5 2
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Vertical settlements Lateral displacements
LDI
0 1 2 3 4 5
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Lateral displacements
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 5Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6620.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
20.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
F.S. color scheme LPI color scheme
Almost certain it will liquefy
Very likely to liquefyLiquefaction and no liq. are equally likelyUnlike to liquefy Almost certain it will not liquefy
Very high riskHigh riskLow risk
859
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Normalized friction ratio (%)
0.1 1 10
Normalized CPT penetration resistance
1 10
100
1,000
Liquefaction analysis summary plots
qc1N,cs
0 20 40 60 80 100 120 140 160 180 200
Cyclic Stress Ratio*(CSR*)
0.80.70.60.50.40.30.20.1 0
Liquefaction
No Liquefaction
Thickness of surface layer, H1 (m)
0 1 2 3 4 5 6 7 8 9 10
Thickness of liquefiable sand layer, H2 (m)
12.011.010.0
9.08.07.06.05.04.03.02.01.00.0 C PT-02 (1.23)
Analysis PGA: 0.66
PGA
0.40g - 0.50g
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 6Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6620.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
20.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
860
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Norm. cone resistance
qc1N
100 200 300
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Norm. cone resistance
Check for strength loss plots (Idriss & Boulanger (2008)) Residual strength correction
Delta qc1N-Sr
0 1 2 3 4 5 6 7 8 9 10
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Residual strength correction Corrected norm. cone resistance qc1Ncs-Sr
0 50 100 150 200
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Corrected norm. cone resistance SBTn Index
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
SBTn Index Liquefied Su/Sig'v
Su/Sig'v
0 0.1 0.2 0.3 0.4 0.5
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Peak Su ratio Liq. Su ratio
Liquefied Su/Sig'v
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 7Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6620.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
20.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
861
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Cone resistance
qt (tsf)
100 200 300
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Cone resistance SBTn Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
SBTn Plot FS Plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
FS Plot
During earthq.
Vertical settlements
Settlement (in)
0 0.5 1 1.5 2
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Vertical settlements
Estimation of post-earthquake settlements
Strain plot
Volumentric strain (%)
0 1 2 3 4 5 6
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Strain plot
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 49Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Abbreviationsqt:
Ic:
FS:
Volumentric strain:
Total cone resistance (cone resistance qc corrected for pore water effects) Soil Behaviour Type IndexCalculated Factor of Safety against liquefactionPost-liquefaction volumentric strain 862
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement of dry sands ::
Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
0.33 1.50 184.53 1.00 184.53 32 694 0.34 0.001 0.00 10.85 0.00 0.000
0.49 1.56 155.22 1.00 155.22 28 629 0.32 0.002 0.00 10.85 0.00 0.000
0.66 1.63 128.85 1.00 128.85 23 570 0.38 0.004 0.00 10.85 0.00 0.000
0.82 1.80 96.28 1.15 110.72 21 525 0.38 0.006 0.01 10.85 0.00 0.000
0.98 1.71 117.20 1.01 118.61 22 574 0.37 0.006 0.01 10.85 0.00 0.000
1.15 1.64 135.88 1.00 135.88 25 611 0.35 0.007 0.01 10.85 0.00 0.000
1.31 1.66 141.60 1.00 141.60 26 647 0.35 0.007 0.01 10.85 0.00 0.000
1.48 1.70 139.61 1.00 139.61 26 674 0.36 0.008 0.01 10.85 0.00 0.000
1.64 1.69 151.28 1.00 151.28 28 717 0.36 0.008 0.01 10.85 0.00 0.000
1.80 1.59 191.08 1.00 191.08 34 798 0.33 0.008 0.00 10.85 0.00 0.000
1.97 1.47 250.34 1.00 250.34 43 901 0.32 0.007 0.00 10.85 0.00 0.000
2.13 1.40 297.19 1.00 297.19 50 982 0.32 0.007 0.00 10.85 0.00 0.000
2.30 1.39 312.57 1.00 312.57 53 1020 0.32 0.007 0.00 10.85 0.00 0.000
2.46 1.45 303.57 1.00 303.57 52 1064 0.32 0.008 0.00 10.85 0.00 0.000
2.62 1.53 285.08 1.00 285.08 50 1113 0.32 0.008 0.00 10.85 0.00 0.000
2.79 1.63 258.81 1.00 258.81 47 1147 0.32 0.008 0.00 10.85 0.00 0.000
2.95 1.68 237.86 1.00 237.86 44 1125 0.32 0.009 0.00 10.85 0.00 0.000
3.12 1.68 232.38 1.00 232.38 43 1089 0.32 0.010 0.00 10.85 0.00 0.000
3.28 1.61 250.58 1.00 250.58 45 1078 0.32 0.011 0.00 10.85 0.00 0.000
3.45 1.52 292.19 1.00 292.19 51 1126 0.32 0.010 0.00 10.85 0.00 0.000
3.61 1.46 341.42 1.00 341.42 59 1214 0.32 0.010 0.00 10.85 0.00 0.000
3.77 1.42 377.09 1.00 377.09 64 1281 0.32 0.010 0.00 10.85 0.00 0.000
3.94 1.43 374.44 1.00 374.44 64 1285 0.32 0.010 0.00 10.85 0.00 0.000
4.10 1.47 339.97 1.00 339.97 59 1224 0.32 0.012 0.00 10.85 0.00 0.000
4.27 1.53 294.08 1.00 294.08 52 1137 0.32 0.014 0.00 10.85 0.00 0.000
4.43 1.57 250.40 1.00 250.40 45 1028 0.32 0.017 0.01 10.85 0.01 0.000
4.59 1.62 213.91 1.00 213.91 39 927 0.32 0.021 0.01 10.85 0.01 0.000
4.76 1.64 183.84 1.00 183.84 34 822 0.33 0.028 0.01 10.85 0.01 0.001
4.92 1.69 154.31 1.00 154.31 29 732 0.34 0.038 0.02 10.85 0.02 0.001
5.09 1.74 127.46 1.06 135.36 26 644 0.36 0.056 0.04 10.85 0.04 0.001
5.25 1.80 102.70 1.15 118.52 23 563 0.37 0.090 0.08 10.85 0.07 0.003
5.41 1.85 85.23 1.20 102.47 20 498 0.37 0.149 0.15 10.85 0.13 0.005
5.58 1.90 71.66 1.24 88.70 18 446 0.37 0.257 0.30 10.85 0.26 0.010
5.74 1.93 62.65 1.26 78.73 16 404 0.37 0.444 0.58 10.85 0.50 0.019
5.91 1.95 57.17 1.27 72.46 15 377 0.37 0.701 1.01 10.85 0.87 0.036
6.07 1.96 52.71 1.00 52.71 11 354 0.37 1.087 2.27 10.85 1.97 0.075
6.23 1.96 51.25 1.00 51.25 11 345 0.38 1.350 2.92 10.85 2.52 0.097
6.40 1.96 50.86 1.00 50.86 10 342 0.37 1.535 3.35 10.85 2.90 0.118
6.56 1.94 52.56 1.00 52.56 11 345 0.38 1.561 3.30 10.85 2.86 0.110
6.73 1.93 54.26 1.00 54.26 11 350 0.38 1.516 3.11 10.85 2.69 0.110
6.89 1.91 57.62 1.00 57.62 12 361 0.38 1.325 2.55 10.85 2.21 0.085
7.05 1.88 62.42 1.00 62.42 12 377 0.38 1.083 1.92 10.85 1.66 0.064
7.22 1.85 67.65 1.00 67.65 13 396 0.38 0.869 1.42 10.85 1.22 0.050
7.38 1.83 71.80 1.00 71.80 14 416 0.38 0.692 1.06 10.85 0.92 0.035
7.55 1.81 75.24 1.00 75.24 15 434 0.38 0.584 0.85 10.85 0.74 0.030
7.71 1.80 78.22 1.00 78.22 15 450 0.38 0.509 0.71 10.85 0.62 0.024
7.87 1.78 81.10 1.00 81.10 16 466 0.38 0.445 0.60 10.85 0.52 0.020
8.04 1.75 83.74 1.00 83.74 16 472 0.38 0.440 0.58 10.85 0.50 0.020 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 50 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 863
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement of dry sands :: (continued) Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
8.20 1.73 86.29 1.00 86.29 16 481 0.38 0.422 0.54 10.85 0.47 0.018
8.37 1.71 88.33 1.00 88.33 17 490 0.38 0.403 0.51 10.85 0.44 0.018
8.53 1.74 87.16 1.00 87.16 17 502 0.38 0.376 0.47 10.85 0.41 0.016
8.69 1.75 88.57 1.00 88.57 17 518 0.38 0.338 0.42 10.85 0.36 0.014
8.86 1.75 90.37 1.00 90.37 17 534 0.38 0.307 0.37 10.85 0.32 0.013
9.02 1.73 96.23 1.00 96.23 18 560 0.38 0.259 0.29 10.85 0.25 0.010
9.19 1.71 100.55 1.00 100.55 19 583 0.37 0.227 0.24 10.85 0.21 0.009
9.35 1.70 106.13 1.00 106.13 20 612 0.37 0.194 0.20 10.85 0.17 0.007
9.51 1.68 111.59 1.00 111.59 21 635 0.37 0.174 0.17 10.85 0.14 0.006
9.68 1.66 116.56 1.00 116.56 21 660 0.37 0.156 0.14 10.85 0.12 0.005
9.84 1.66 119.92 1.00 119.92 22 679 0.36 0.145 0.13 10.85 0.11 0.004
10.01 1.67 120.71 1.00 120.71 22 697 0.36 0.137 0.12 10.85 0.10 0.004
10.17 1.68 118.99 1.00 118.99 22 703 0.37 0.138 0.12 10.85 0.11 0.004
10.34 1.70 115.42 1.00 115.42 22 700 0.37 0.144 0.13 10.85 0.11 0.005
10.50 1.71 112.68 1.00 112.83 21 695 0.37 0.152 0.14 10.85 0.12 0.005
10.66 1.71 111.71 1.00 111.77 21 694 0.37 0.158 0.15 10.85 0.13 0.005
10.83 1.70 112.42 1.00 112.42 21 699 0.37 0.159 0.15 10.85 0.13 0.005
10.99 1.69 114.08 1.00 114.08 21 706 0.37 0.158 0.15 10.85 0.13 0.005
11.16 1.67 115.28 1.00 115.28 21 708 0.37 0.161 0.15 10.85 0.13 0.005
11.32 1.66 116.08 1.00 116.08 21 707 0.37 0.166 0.15 10.85 0.13 0.005
11.48 1.64 116.44 1.00 116.44 21 698 0.37 0.179 0.17 10.85 0.14 0.006
11.65 1.63 117.48 1.00 117.48 21 700 0.37 0.183 0.17 10.85 0.15 0.006
11.81 1.62 120.09 1.00 120.09 22 715 0.37 0.174 0.16 10.85 0.14 0.005
11.98 1.62 124.49 1.00 124.49 23 750 0.37 0.150 0.13 10.85 0.11 0.005
12.14 1.63 131.80 1.00 131.80 24 800 0.36 0.124 0.10 10.85 0.09 0.003
12.30 1.62 141.37 1.00 141.37 26 858 0.36 0.103 0.08 10.85 0.07 0.003
12.47 1.62 153.26 1.00 153.26 28 942 0.35 0.081 0.05 10.85 0.05 0.002
12.63 1.61 164.38 1.00 164.38 30 1003 0.34 0.070 0.04 10.85 0.04 0.001
12.80 1.61 174.83 1.00 174.83 32 1067 0.33 0.062 0.04 10.85 0.03 0.001
12.96 1.62 175.75 1.00 175.75 32 1100 0.33 0.059 0.03 10.85 0.03 0.001
13.12 1.62 186.61 1.00 186.61 34 1171 0.34 0.052 0.03 10.85 0.02 0.001
13.29 1.61 197.45 1.00 197.45 36 1237 0.31 0.047 0.02 10.85 0.02 0.001
13.45 1.58 215.46 1.00 215.46 39 1306 0.31 0.043 0.02 10.85 0.02 0.001
13.62 1.57 221.03 1.00 221.03 40 1343 0.31 0.042 0.02 10.85 0.02 0.001
13.78 1.57 223.91 1.00 223.91 40 1369 0.31 0.041 0.02 10.85 0.02 0.001
13.94 1.58 226.06 1.00 226.06 40 1392 0.31 0.040 0.02 10.85 0.01 0.001
14.11 1.58 226.64 1.00 226.64 41 1411 0.32 0.040 0.02 10.85 0.01 0.001
14.27 1.59 222.40 1.00 222.40 40 1414 0.32 0.040 0.02 10.85 0.02 0.001
14.44 1.62 209.68 1.00 209.68 38 1381 0.32 0.043 0.02 10.85 0.02 0.001
14.60 1.65 191.12 1.00 191.12 35 1320 0.32 0.048 0.02 10.85 0.02 0.001
14.76 1.69 170.14 1.00 170.14 32 1239 0.34 0.055 0.03 10.85 0.03 0.001
14.93 1.73 149.28 1.06 157.72 30 1151 0.36 0.066 0.04 10.85 0.04 0.001
15.09 1.77 132.58 1.12 148.24 28 1077 0.37 0.079 0.05 10.85 0.04 0.002
15.26 1.80 120.11 1.15 138.31 27 1014 0.37 0.094 0.07 10.85 0.06 0.002
15.42 1.81 114.60 1.17 133.76 26 991 0.38 0.102 0.07 10.85 0.06 0.002
15.58 1.82 113.43 1.18 133.29 26 996 0.38 0.102 0.07 10.85 0.06 0.002
15.75 1.83 115.79 1.18 137.01 27 1034 0.37 0.094 0.07 10.85 0.06 0.002
15.91 1.83 119.98 1.18 141.89 28 1077 0.37 0.086 0.06 10.85 0.05 0.002 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 51 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 864
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement of dry sands :: (continued) Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
16.08 1.83 123.29 1.18 145.77 28 1114 0.37 0.080 0.05 10.85 0.05 0.002
16.24 1.84 125.95 1.19 149.78 29 1156 0.37 0.074 0.05 10.85 0.04 0.002
16.40 1.86 126.18 1.21 152.52 30 1200 0.36 0.069 0.04 10.85 0.04 0.001
16.57 1.88 125.33 1.23 153.74 0 0 0.36 0.000 0.00 0.00 0.00 0.000
16.73 1.98 124.96 1.29 161.77 0 0 0.35 0.000 0.00 0.00 0.00 0.000
16.90 2.07 121.84 1.38 168.63 0 0 0.33 0.000 0.00 0.00 0.00 0.000
17.06 2.21 109.82 1.64 180.48 0 0 0.33 0.000 0.00 0.00 0.00 0.000
17.23 2.34 90.21 2.10 189.73 0 0 0.35 0.000 0.00 0.00 0.00 0.000
17.39 2.43 77.66 2.56 199.16 0 0 0.37 0.000 0.00 0.00 0.00 0.000
17.55 2.44 73.65 2.61 192.56 48 1526 0.36 0.046 0.02 10.85 0.01 0.001
17.72 2.40 74.68 2.37 176.95 44 1477 0.36 0.050 0.02 10.85 0.02 0.001
17.88 2.40 70.46 2.37 167.22 41 1405 0.37 0.056 0.02 10.85 0.02 0.001
18.05 2.42 65.14 2.47 160.66 40 1339 0.37 0.063 0.03 10.85 0.02 0.001
18.21 2.44 60.72 2.59 157.12 39 1293 0.37 0.069 0.03 10.85 0.03 0.001
18.37 2.45 57.32 2.68 153.49 39 1254 0.38 0.075 0.03 10.85 0.03 0.001
18.54 2.48 52.54 2.87 150.98 39 1205 0.38 0.083 0.04 10.85 0.03 0.001
18.70 2.52 47.29 3.12 147.39 38 1144 0.38 0.096 0.04 10.85 0.04 0.001
18.87 2.57 41.90 3.46 145.18 39 1084 0.38 0.113 0.05 10.85 0.04 0.002
19.03 2.59 39.22 3.65 143.11 38 1052 0.38 0.124 0.06 10.85 0.05 0.002
19.19 2.61 37.27 3.81 142.10 0 0 0.39 0.000 0.00 0.00 0.00 0.000
19.36 2.62 35.59 3.96 140.82 0 0 0.39 0.000 0.00 0.00 0.00 0.000
19.52 2.64 33.81 4.09 138.40 0 0 0.39 0.000 0.00 0.00 0.00 0.000
19.69 2.65 32.28 4.20 135.60 0 0 0.39 0.000 0.00 0.00 0.00 0.000
19.85 2.67 30.64 4.37 133.98 0 0 0.39 0.000 0.00 0.00 0.00 0.000 Total estimated settlement: 1.15
Abbreviations
Qtn:
Kc:
Qtn,cs:
Gmax:
CSR:
γ:
evol(15):
Nc:
ev:
Settle.:
Normalized cone resistance
Fines correction factor
Equivalent clean sand normalized cone resistance
Small strain shear modulus
Soil cyclic stress ratio
Cyclic shear strain
Volumetric strain after 15 cycles
Equivalent number of cycles
Volumetric strain
Calculated settlement
:: Post-earthquake settlement due to soil liquefaction ::
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
20.01 31.27 2.00 0.00 0.00 1.00 20.18 30.13 2.00 0.00 0.00 1.00
20.34 29.27 2.00 0.00 0.00 1.00 20.51 29.56 2.00 0.00 0.00 1.00
20.67 29.50 2.00 0.00 0.00 1.00 20.83 28.82 2.00 0.00 0.00 1.00
21.00 28.31 2.00 0.00 0.00 1.00 21.16 27.99 2.00 0.00 0.00 1.00
21.33 27.31 2.00 0.00 0.00 1.00 21.49 26.73 2.00 0.00 0.00 1.00
21.65 26.94 2.00 0.00 0.00 1.00 21.82 26.44 2.00 0.00 0.00 1.00
21.98 24.90 2.00 0.00 0.00 1.00 22.15 24.15 2.00 0.00 0.00 1.00
22.31 24.19 2.00 0.00 0.00 1.00 22.47 23.62 2.00 0.00 0.00 1.00
22.64 23.31 2.00 0.00 0.00 1.00 22.80 23.26 2.00 0.00 0.00 1.00
22.97 23.99 2.00 0.00 0.00 1.00 23.13 24.81 2.00 0.00 0.00 1.00
23.30 25.19 2.00 0.00 0.00 1.00 23.46 25.74 2.00 0.00 0.00 1.00 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 52 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 865
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement due to soil liquefaction :: (continued) Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
23.62 28.45 2.00 0.00 0.00 1.00 23.79 31.15 2.00 0.00 0.00 1.00
23.95 32.20 2.00 0.00 0.00 1.00 24.12 45.92 2.00 0.00 0.00 1.00
24.28 136.71 2.00 0.00 0.00 1.00 24.44 146.37 2.00 0.00 0.00 1.00
24.61 145.37 2.00 0.00 0.00 1.00 24.77 146.01 0.66 2.14 0.04 1.00
24.94 157.19 0.87 1.16 0.02 1.00 25.10 168.50 1.23 0.50 0.01 1.00
25.26 164.44 1.07 0.71 0.01 1.00 25.43 167.05 1.16 0.58 0.01 1.00
25.59 140.37 0.57 2.24 0.04 1.00 25.76 127.53 2.00 0.00 0.00 1.00
25.92 137.28 2.00 0.00 0.00 1.00 26.08 139.39 2.00 0.00 0.00 1.00
26.25 126.02 2.00 0.00 0.00 1.00 26.41 114.06 2.00 0.00 0.00 1.00
26.58 45.09 2.00 0.00 0.00 1.00 26.74 31.03 2.00 0.00 0.00 1.00
26.90 26.30 2.00 0.00 0.00 1.00 27.07 20.46 2.00 0.00 0.00 1.00
27.23 18.86 2.00 0.00 0.00 1.00 27.40 18.82 2.00 0.00 0.00 1.00
27.56 16.09 2.00 0.00 0.00 1.00 27.72 20.63 2.00 0.00 0.00 1.00
27.89 27.86 2.00 0.00 0.00 1.00 28.05 107.94 2.00 0.00 0.00 1.00
28.22 136.27 2.00 0.00 0.00 1.00 28.38 118.26 2.00 0.00 0.00 1.00
28.54 122.79 0.41 2.59 0.05 1.00 28.71 126.28 0.43 2.51 0.05 1.00
28.87 132.92 0.48 2.38 0.05 1.00 29.04 144.57 0.60 2.16 0.04 1.00
29.20 149.56 0.67 2.08 0.04 1.00 29.36 150.35 0.68 2.07 0.04 1.00
29.53 149.63 0.67 2.08 0.04 1.00 29.69 154.59 0.76 1.56 0.03 1.00
29.86 160.81 0.90 1.04 0.02 1.00 30.02 173.00 1.34 0.38 0.01 1.00
30.19 175.63 1.48 0.28 0.01 1.00 30.35 173.76 1.37 0.36 0.01 1.00
30.51 178.10 2.00 0.00 0.00 1.00 30.68 181.17 2.00 0.00 0.00 1.00
30.84 166.89 2.00 0.00 0.00 1.00 31.01 120.45 2.00 0.00 0.00 1.00
31.17 38.71 2.00 0.00 0.00 1.00 31.33 32.68 2.00 0.00 0.00 1.00
31.50 28.61 2.00 0.00 0.00 1.00 31.66 35.30 2.00 0.00 0.00 1.00
31.83 113.03 2.00 0.00 0.00 1.00 31.99 117.27 2.00 0.00 0.00 1.00
32.15 117.20 2.00 0.00 0.00 1.00 32.32 121.20 2.00 0.00 0.00 1.00
32.48 128.84 2.00 0.00 0.00 1.00 32.65 151.04 2.00 0.00 0.00 1.00
32.81 164.35 2.00 0.00 0.00 1.00 32.97 165.12 2.00 0.00 0.00 1.00
33.14 144.38 2.00 0.00 0.00 1.00 33.30 124.62 2.00 0.00 0.00 1.00
33.47 44.22 2.00 0.00 0.00 1.00 33.63 35.25 2.00 0.00 0.00 1.00
33.79 34.09 2.00 0.00 0.00 1.00 33.96 34.59 2.00 0.00 0.00 1.00
34.12 33.82 2.00 0.00 0.00 1.00 34.29 32.25 2.00 0.00 0.00 1.00
34.45 30.94 2.00 0.00 0.00 1.00 34.61 30.90 2.00 0.00 0.00 1.00
34.78 28.03 2.00 0.00 0.00 1.00 34.94 26.99 2.00 0.00 0.00 1.00
35.11 25.47 2.00 0.00 0.00 1.00 35.27 26.59 2.00 0.00 0.00 1.00
35.43 27.01 2.00 0.00 0.00 1.00 35.60 28.36 2.00 0.00 0.00 1.00
35.76 29.16 2.00 0.00 0.00 1.00 35.93 30.36 2.00 0.00 0.00 1.00
36.09 30.62 2.00 0.00 0.00 1.00 36.26 28.18 2.00 0.00 0.00 1.00
36.42 25.76 2.00 0.00 0.00 1.00 36.58 24.58 2.00 0.00 0.00 1.00
36.75 22.87 2.00 0.00 0.00 1.00 36.91 21.63 2.00 0.00 0.00 1.00
37.08 20.31 2.00 0.00 0.00 1.00 37.24 19.61 2.00 0.00 0.00 1.00
37.40 19.20 2.00 0.00 0.00 1.00 37.57 18.58 2.00 0.00 0.00 1.00
37.73 17.73 2.00 0.00 0.00 1.00 37.90 17.85 2.00 0.00 0.00 1.00
38.06 19.68 2.00 0.00 0.00 1.00 38.22 22.40 2.00 0.00 0.00 1.00
38.39 26.26 2.00 0.00 0.00 1.00 38.55 29.02 2.00 0.00 0.00 1.00
38.72 28.29 2.00 0.00 0.00 1.00 38.88 29.23 2.00 0.00 0.00 1.00
39.04 33.76 2.00 0.00 0.00 1.00 39.21 35.15 2.00 0.00 0.00 1.00 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 53 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 866
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement due to soil liquefaction :: (continued) Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
39.37 33.05 2.00 0.00 0.00 1.00 39.54 28.00 2.00 0.00 0.00 1.00
39.70 29.78 2.00 0.00 0.00 1.00 39.86 30.27 2.00 0.00 0.00 1.00
40.03 27.29 2.00 0.00 0.00 1.00 40.19 23.75 2.00 0.00 0.00 1.00
40.36 18.66 2.00 0.00 0.00 1.00 40.52 15.59 2.00 0.00 0.00 1.00
40.68 20.27 2.00 0.00 0.00 1.00 40.85 23.68 2.00 0.00 0.00 1.00
41.01 21.96 2.00 0.00 0.00 1.00 41.18 20.61 2.00 0.00 0.00 1.00
41.34 19.21 2.00 0.00 0.00 1.00 41.50 18.60 2.00 0.00 0.00 1.00
41.67 17.14 2.00 0.00 0.00 1.00 41.83 16.19 2.00 0.00 0.00 1.00
42.00 16.66 2.00 0.00 0.00 1.00 42.16 16.43 2.00 0.00 0.00 1.00
42.32 16.76 2.00 0.00 0.00 1.00 42.49 17.37 2.00 0.00 0.00 1.00
42.65 17.06 2.00 0.00 0.00 1.00 42.82 16.83 2.00 0.00 0.00 1.00
42.98 17.30 2.00 0.00 0.00 1.00 43.15 17.91 2.00 0.00 0.00 1.00
43.31 18.38 2.00 0.00 0.00 1.00 43.47 18.93 2.00 0.00 0.00 1.00
43.64 19.82 2.00 0.00 0.00 1.00 43.80 20.58 2.00 0.00 0.00 1.00
43.97 19.20 2.00 0.00 0.00 1.00 44.13 18.04 2.00 0.00 0.00 1.00
44.29 18.37 2.00 0.00 0.00 1.00 44.46 19.97 2.00 0.00 0.00 1.00
44.62 19.51 2.00 0.00 0.00 1.00 44.79 19.20 2.00 0.00 0.00 1.00
44.95 18.90 2.00 0.00 0.00 1.00 45.28 18.49 2.00 0.00 0.00 1.00
45.44 18.19 2.00 0.00 0.00 1.00 45.61 17.54 2.00 0.00 0.00 1.00
45.77 16.89 2.00 0.00 0.00 1.00 45.93 17.21 2.00 0.00 0.00 1.00
46.10 16.43 2.00 0.00 0.00 1.00 46.26 16.27 2.00 0.00 0.00 1.00
46.43 16.52 2.00 0.00 0.00 1.00 46.59 17.12 2.00 0.00 0.00 1.00
46.75 17.92 2.00 0.00 0.00 1.00 46.92 17.55 2.00 0.00 0.00 1.00
47.08 16.98 2.00 0.00 0.00 1.00 47.25 16.47 2.00 0.00 0.00 1.00
47.41 16.11 2.00 0.00 0.00 1.00 47.57 15.68 2.00 0.00 0.00 1.00
47.74 15.59 2.00 0.00 0.00 1.00 47.90 16.93 2.00 0.00 0.00 1.00
48.07 16.50 2.00 0.00 0.00 1.00 48.23 15.94 2.00 0.00 0.00 1.00
48.39 16.46 2.00 0.00 0.00 1.00 48.56 16.23 2.00 0.00 0.00 1.00
48.72 15.54 2.00 0.00 0.00 1.00 48.89 14.91 2.00 0.00 0.00 1.00
49.05 14.89 2.00 0.00 0.00 1.00 49.22 15.21 2.00 0.00 0.00 1.00
49.38 15.46 2.00 0.00 0.00 1.00 49.54 15.10 2.00 0.00 0.00 1.00
49.71 14.75 2.00 0.00 0.00 1.00 49.87 14.40 2.00 0.00 0.00 1.00
50.04 15.04 2.00 0.00 0.00 1.00 50.20 16.70 2.00 0.00 0.00 1.00
50.36 16.34 2.00 0.00 0.00 1.00 50.53 15.52 2.00 0.00 0.00 1.00
50.69 14.50 2.00 0.00 0.00 1.00 50.86 14.09 2.00 0.00 0.00 1.00
51.02 14.73 2.00 0.00 0.00 1.00 51.18 15.11 2.00 0.00 0.00 1.00
51.35 13.97 2.00 0.00 0.00 1.00 51.51 14.02 2.00 0.00 0.00 1.00
51.68 14.26 2.00 0.00 0.00 1.00 51.84 14.05 2.00 0.00 0.00 1.00
52.00 14.43 2.00 0.00 0.00 1.00 52.17 15.07 2.00 0.00 0.00 1.00
52.33 14.39 2.00 0.00 0.00 1.00 52.50 14.51 2.00 0.00 0.00 1.00
52.66 14.29 2.00 0.00 0.00 1.00 52.82 14.21 2.00 0.00 0.00 1.00
52.99 14.78 2.00 0.00 0.00 1.00 53.15 15.62 2.00 0.00 0.00 1.00
53.32 15.80 2.00 0.00 0.00 1.00 53.48 15.32 2.00 0.00 0.00 1.00
53.64 15.04 2.00 0.00 0.00 1.00 53.81 15.48 2.00 0.00 0.00 1.00
53.97 16.31 2.00 0.00 0.00 1.00 54.14 16.81 2.00 0.00 0.00 1.00
54.30 17.85 2.00 0.00 0.00 1.00 54.46 17.69 2.00 0.00 0.00 1.00
54.63 17.34 2.00 0.00 0.00 1.00 54.79 17.58 2.00 0.00 0.00 1.00
54.96 18.22 2.00 0.00 0.00 1.00 55.12 18.19 2.00 0.00 0.00 1.00 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 54 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 867
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement due to soil liquefaction :: (continued) Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
55.28 19.09 2.00 0.00 0.00 1.00 55.45 19.79 2.00 0.00 0.00 1.00
55.61 20.16 2.00 0.00 0.00 1.00 55.78 20.14 2.00 0.00 0.00 1.00
55.94 21.04 2.00 0.00 0.00 1.00 56.11 20.42 2.00 0.00 0.00 1.00
56.27 20.33 2.00 0.00 0.00 1.00 56.43 19.97 2.00 0.00 0.00 1.00
56.60 20.74 2.00 0.00 0.00 1.00 56.76 21.11 2.00 0.00 0.00 1.00
56.93 19.90 2.00 0.00 0.00 1.00 57.09 18.24 2.00 0.00 0.00 1.00
57.25 17.37 2.00 0.00 0.00 1.00 57.42 16.58 2.00 0.00 0.00 1.00
57.58 16.18 2.00 0.00 0.00 1.00 57.75 16.74 2.00 0.00 0.00 1.00
57.91 16.34 2.00 0.00 0.00 1.00 58.07 15.88 2.00 0.00 0.00 1.00
58.24 15.41 2.00 0.00 0.00 1.00 58.40 15.65 2.00 0.00 0.00 1.00
58.57 15.44 2.00 0.00 0.00 1.00 58.73 15.30 2.00 0.00 0.00 1.00
58.89 15.03 2.00 0.00 0.00 1.00 59.06 15.26 2.00 0.00 0.00 1.00
59.22 14.87 2.00 0.00 0.00 1.00 59.39 15.11 2.00 0.00 0.00 1.00
59.55 15.55 2.00 0.00 0.00 1.00 59.71 14.90 2.00 0.00 0.00 1.00
59.88 14.69 2.00 0.00 0.00 1.00 60.04 14.43 2.00 0.00 0.00 1.00
60.21 17.88 2.00 0.00 0.00 1.00 60.37 25.69 2.00 0.00 0.00 1.00
60.53 25.01 2.00 0.00 0.00 1.00 60.70 22.10 2.00 0.00 0.00 1.00
60.86 35.39 2.00 0.00 0.00 1.00 61.03 43.88 2.00 0.00 0.00 1.00
61.19 35.07 2.00 0.00 0.00 1.00 61.35 35.81 2.00 0.00 0.00 1.00
61.52 29.16 2.00 0.00 0.00 1.00 61.68 25.44 2.00 0.00 0.00 1.00
61.85 22.55 2.00 0.00 0.00 1.00 62.01 18.76 2.00 0.00 0.00 1.00
62.17 16.80 2.00 0.00 0.00 1.00 62.34 16.34 2.00 0.00 0.00 1.00
62.50 26.79 2.00 0.00 0.00 1.00 62.67 40.44 2.00 0.00 0.00 1.00
62.83 34.49 2.00 0.00 0.00 1.00 63.00 28.66 2.00 0.00 0.00 1.00
63.16 22.85 2.00 0.00 0.00 1.00 63.32 32.51 2.00 0.00 0.00 1.00
63.49 39.47 2.00 0.00 0.00 1.00 63.65 29.21 2.00 0.00 0.00 1.00
63.82 22.55 2.00 0.00 0.00 1.00 63.98 22.52 2.00 0.00 0.00 1.00
64.14 20.47 2.00 0.00 0.00 1.00 64.31 22.09 2.00 0.00 0.00 1.00
64.47 28.89 2.00 0.00 0.00 1.00 64.64 29.64 2.00 0.00 0.00 1.00
64.80 41.44 2.00 0.00 0.00 1.00 64.96 35.30 2.00 0.00 0.00 1.00
65.13 42.79 2.00 0.00 0.00 1.00 65.29 44.08 2.00 0.00 0.00 1.00
65.46 50.02 2.00 0.00 0.00 1.00 65.62 66.05 2.00 0.00 0.00 1.00
65.78 57.27 2.00 0.00 0.00 1.00 65.95 166.56 2.00 0.00 0.00 1.00
66.11 226.47 2.00 0.00 0.00 1.00 66.28 242.25 2.00 0.00 0.00 1.00
66.44 182.85 2.00 0.00 0.00 1.00 66.60 87.39 2.00 0.00 0.00 1.00
66.77 57.26 2.00 0.00 0.00 1.00 66.93 42.64 2.00 0.00 0.00 1.00
67.10 131.19 2.00 0.00 0.00 1.00 67.26 185.77 2.00 0.00 0.00 1.00
67.42 157.81 2.00 0.00 0.00 1.00 67.59 157.44 2.00 0.00 0.00 1.00
67.75 169.25 1.04 0.73 0.01 1.00 67.92 159.20 0.77 1.43 0.03 1.00
68.08 163.84 0.88 1.06 0.02 1.00 68.24 174.52 1.25 0.47 0.01 1.00
68.41 164.40 0.89 1.03 0.02 1.00 68.57 149.13 0.59 2.09 0.04 1.00
68.74 135.61 0.45 2.32 0.05 1.00 68.90 131.08 2.00 0.00 0.00 1.00
69.07 162.82 2.00 0.00 0.00 1.00 69.23 191.50 2.00 0.00 0.00 1.00
69.39 185.55 2.00 0.00 0.00 1.00 69.56 188.34 2.00 0.00 0.00 1.00
69.72 170.27 2.00 0.00 0.00 1.00 69.89 66.07 2.00 0.00 0.00 1.00
70.05 73.35 2.00 0.00 0.00 1.00 70.21 164.14 2.00 0.00 0.00 1.00
70.38 190.15 2.00 0.00 0.00 1.00 70.54 156.64 2.00 0.00 0.00 1.00
70.71 245.60 2.00 0.00 0.00 1.00 70.87 217.77 2.00 0.00 0.00 1.00 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 55 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 868
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement due to soil liquefaction :: (continued) Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
71.03 204.77 2.00 0.00 0.00 1.00 71.20 192.70 2.00 0.00 0.00 1.00
71.36 182.43 1.70 0.14 0.00 1.00 71.53 185.75 1.96 0.02 0.00 1.00
71.69 195.86 2.00 0.00 0.00 1.00 71.85 215.90 2.00 0.00 0.00 1.00
72.02 222.06 2.00 0.00 0.00 1.00 72.18 234.73 2.00 0.00 0.00 1.00
72.35 235.12 2.00 0.00 0.00 1.00 72.51 233.27 2.00 0.00 0.00 1.00
72.67 212.07 2.00 0.00 0.00 1.00 72.84 192.62 2.00 0.00 0.00 1.00
73.00 170.86 2.00 0.00 0.00 1.00 73.17 154.53 2.00 0.00 0.00 1.00
73.33 161.08 2.00 0.00 0.00 1.00 73.49 167.66 2.00 0.00 0.00 1.00
73.66 173.21 2.00 0.00 0.00 1.00 73.82 178.75 2.00 0.00 0.00 1.00
73.99 198.19 2.00 0.00 0.00 1.00 74.15 177.16 2.00 0.00 0.00 1.00
74.31 163.96 2.00 0.00 0.00 1.00 74.48 179.64 2.00 0.00 0.00 1.00
74.64 140.46 0.50 2.23 0.04 1.00 74.81 139.98 0.50 2.24 0.05 1.00
74.97 193.61 2.00 0.00 0.00 1.00 75.13 169.24 1.05 0.72 0.01 1.00
75.30 125.91 0.39 2.52 0.05 1.00 75.46 56.08 2.00 0.00 0.00 1.00
75.63 162.94 0.86 1.11 0.02 1.00 75.79 84.59 2.00 0.00 0.00 1.00
75.96 42.21 2.00 0.00 0.00 1.00 76.12 27.61 2.00 0.00 0.00 1.00
76.28 143.53 0.53 2.18 0.04 1.00 76.45 174.59 1.26 0.46 0.01 1.00
76.61 185.18 1.92 0.03 0.00 1.00 76.78 157.79 0.75 1.53 0.03 1.00
76.94 120.82 0.37 2.64 0.05 1.00 77.10 150.68 0.63 2.06 0.04 1.00
77.27 161.94 0.84 1.18 0.02 1.00 77.43 180.11 2.00 0.00 0.00 1.00
77.60 195.50 2.00 0.00 0.00 1.00 77.76 171.56 2.00 0.00 0.00 1.00
77.92 62.84 2.00 0.00 0.00 1.00 78.09 55.52 2.00 0.00 0.00 1.00
78.25 37.61 2.00 0.00 0.00 1.00 78.42 61.55 2.00 0.00 0.00 1.00
78.58 67.35 2.00 0.00 0.00 1.00 78.74 101.27 2.00 0.00 0.00 1.00
78.91 206.55 2.00 0.00 0.00 1.00 79.07 214.37 2.00 0.00 0.00 1.00
79.24 258.63 2.00 0.00 0.00 1.00
Total estimated settlement: 1.08
Abbreviations
Qtn,cs:
FS:
ev (%):
DF:
Settlement:
Equivalent clean sand normalized cone resistance
Factor of safety against liquefaction
Post-liquefaction volumentric strain
ev depth weighting factor
Calculated settlement
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 56 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 869
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Cone resistance
qt (tsf)
100 200 300
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 86420
Cone resistance SBTn Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 86420
SBTn Plot Corrected norm. cone resista
qc1N,cs
0 50 100 150 200
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 86420
Corrected norm. cone resista FS Plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 86420
FS Plot
During earthq.
Cyclic shear strain
Gamma max (%)
0 10 20 30 40 50 60
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 86420
Cyclic shear strain Lateral displacements
LDI
0 2 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 86420
Lateral displacements
Estimation of post-earthquake lateral Displacements
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 57Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq qt: Total cone resistance (cone resistance qc corrected for pore water effects) Ic: Soil Behaviour Type Index
qc1N,cs: Equivalent clean sand normalized CPT total cone resistance F.S.: Factor of safetyγmax: Maximum cyclic shear strain LDI: Lateral displacement index
Abbreviations
870
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Lateral displacement index calculation ::
Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
20.01 31.27 0.00 2.00 0.00 0.00 0.00
20.18 30.13 0.00 2.00 0.00 0.00 0.00
20.34 29.27 0.00 2.00 0.00 0.00 0.00
20.51 29.56 0.00 2.00 0.00 0.00 0.00
20.67 29.50 0.00 2.00 0.00 0.00 0.00
20.83 28.82 0.00 2.00 0.00 0.00 0.00
21.00 28.31 0.00 2.00 0.00 0.00 0.00
21.16 27.99 0.00 2.00 0.00 0.00 0.00
21.33 27.31 0.00 2.00 0.00 0.00 0.00
21.49 26.73 0.00 2.00 0.00 0.00 0.00
21.65 26.94 0.00 2.00 0.00 0.00 0.00
21.82 26.44 0.00 2.00 0.00 0.00 0.00
21.98 24.90 0.00 2.00 0.00 0.00 0.00
22.15 24.15 0.00 2.00 0.00 0.00 0.00
22.31 24.19 0.00 2.00 0.00 0.00 0.00
22.47 23.62 0.00 2.00 0.00 0.00 0.00
22.64 23.31 0.00 2.00 0.00 0.00 0.00
22.80 23.26 0.00 2.00 0.00 0.00 0.00
22.97 23.99 0.00 2.00 0.00 0.00 0.00
23.13 24.81 0.00 2.00 0.00 0.00 0.00
23.30 25.19 0.00 2.00 0.00 0.00 0.00
23.46 25.74 0.00 2.00 0.00 0.00 0.00
23.62 28.45 0.00 2.00 0.00 0.00 0.00
23.79 31.15 0.00 2.00 0.00 0.00 0.00
23.95 32.20 0.00 2.00 0.00 0.00 0.00
24.12 45.92 0.00 2.00 0.00 0.00 0.00
24.28 136.71 0.13 2.00 0.41 0.00 0.00
24.44 146.37 0.10 2.00 0.29 0.00 0.00
24.61 145.37 0.10 2.00 0.31 0.00 0.00
24.77 146.01 0.10 0.66 0.30 0.09 0.18
24.94 157.19 0.08 0.87 0.15 0.05 0.10
25.10 168.50 0.06 1.23 0.00 0.02 0.04
25.26 164.44 0.06 1.07 0.06 0.03 0.06
25.43 167.05 0.06 1.16 0.02 0.03 0.05
25.59 140.37 0.12 0.57 0.37 0.12 0.23
25.76 127.53 0.16 2.00 0.52 0.00 0.00
25.92 137.28 0.13 2.00 0.41 0.00 0.00
26.08 139.39 0.12 2.00 0.38 0.00 0.00
26.25 126.02 0.17 2.00 0.54 0.00 0.00
26.41 114.06 0.22 2.00 0.67 0.00 0.00
26.58 45.09 0.00 2.00 0.00 0.00 0.00
26.74 31.03 0.00 2.00 0.00 0.00 0.00
26.90 26.30 0.00 2.00 0.00 0.00 0.00
27.07 20.46 0.00 2.00 0.00 0.00 0.00
27.23 18.86 0.00 2.00 0.00 0.00 0.00
27.40 18.82 0.00 2.00 0.00 0.00 0.00
27.56 16.09 0.00 2.00 0.00 0.00 0.00
27.72 20.63 0.00 2.00 0.00 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 58 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 871
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
27.89 27.86 0.00 2.00 0.00 0.00 0.00
28.05 107.94 0.26 2.00 0.72 0.00 0.00
28.22 136.27 0.13 2.00 0.42 0.00 0.00
28.38 118.26 0.20 2.00 0.62 0.00 0.00
28.54 122.79 0.18 0.41 0.57 0.18 0.35
28.71 126.28 0.17 0.43 0.54 0.17 0.34
28.87 132.92 0.14 0.48 0.46 0.14 0.27
29.04 144.57 0.11 0.60 0.32 0.11 0.22
29.20 149.56 0.09 0.67 0.25 0.08 0.16
29.36 150.35 0.09 0.68 0.24 0.08 0.15
29.53 149.63 0.09 0.67 0.25 0.08 0.17
29.69 154.59 0.08 0.76 0.19 0.06 0.12
29.86 160.81 0.07 0.90 0.10 0.04 0.09
30.02 173.00 0.05 1.34 -0.06 0.02 0.03
30.19 175.63 0.05 1.48 -0.10 0.01 0.03
30.35 173.76 0.05 1.37 -0.07 0.02 0.03
30.51 178.10 0.04 2.00 -0.13 0.00 0.00
30.68 181.17 0.04 2.00 -0.18 0.00 0.00
30.84 166.89 0.06 2.00 0.02 0.00 0.00
31.01 120.45 0.19 2.00 0.60 0.00 0.00
31.17 38.71 0.00 2.00 0.00 0.00 0.00
31.33 32.68 0.00 2.00 0.00 0.00 0.00
31.50 28.61 0.00 2.00 0.00 0.00 0.00
31.66 35.30 0.00 2.00 0.00 0.00 0.00
31.83 113.03 0.23 2.00 0.68 0.00 0.00
31.99 117.27 0.21 2.00 0.63 0.00 0.00
32.15 117.20 0.21 2.00 0.63 0.00 0.00
32.32 121.20 0.19 2.00 0.59 0.00 0.00
32.48 128.84 0.16 2.00 0.51 0.00 0.00
32.65 151.04 0.09 2.00 0.23 0.00 0.00
32.81 164.35 0.06 2.00 0.06 0.00 0.00
32.97 165.12 0.06 2.00 0.05 0.00 0.00
33.14 144.38 0.11 2.00 0.32 0.00 0.00
33.30 124.62 0.17 2.00 0.55 0.00 0.00
33.47 44.22 0.00 2.00 0.00 0.00 0.00
33.63 35.25 0.00 2.00 0.00 0.00 0.00
33.79 34.09 0.00 2.00 0.00 0.00 0.00
33.96 34.59 0.00 2.00 0.00 0.00 0.00
34.12 33.82 0.00 2.00 0.00 0.00 0.00
34.29 32.25 0.00 2.00 0.00 0.00 0.00
34.45 30.94 0.00 2.00 0.00 0.00 0.00
34.61 30.90 0.00 2.00 0.00 0.00 0.00
34.78 28.03 0.00 2.00 0.00 0.00 0.00
34.94 26.99 0.00 2.00 0.00 0.00 0.00
35.11 25.47 0.00 2.00 0.00 0.00 0.00
35.27 26.59 0.00 2.00 0.00 0.00 0.00
35.43 27.01 0.00 2.00 0.00 0.00 0.00
35.60 28.36 0.00 2.00 0.00 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 59 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 872
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
35.76 29.16 0.00 2.00 0.00 0.00 0.00
35.93 30.36 0.00 2.00 0.00 0.00 0.00
36.09 30.62 0.00 2.00 0.00 0.00 0.00
36.26 28.18 0.00 2.00 0.00 0.00 0.00
36.42 25.76 0.00 2.00 0.00 0.00 0.00
36.58 24.58 0.00 2.00 0.00 0.00 0.00
36.75 22.87 0.00 2.00 0.00 0.00 0.00
36.91 21.63 0.00 2.00 0.00 0.00 0.00
37.08 20.31 0.00 2.00 0.00 0.00 0.00
37.24 19.61 0.00 2.00 0.00 0.00 0.00
37.40 19.20 0.00 2.00 0.00 0.00 0.00
37.57 18.58 0.00 2.00 0.00 0.00 0.00
37.73 17.73 0.00 2.00 0.00 0.00 0.00
37.90 17.85 0.00 2.00 0.00 0.00 0.00
38.06 19.68 0.00 2.00 0.00 0.00 0.00
38.22 22.40 0.00 2.00 0.00 0.00 0.00
38.39 26.26 0.00 2.00 0.00 0.00 0.00
38.55 29.02 0.00 2.00 0.00 0.00 0.00
38.72 28.29 0.00 2.00 0.00 0.00 0.00
38.88 29.23 0.00 2.00 0.00 0.00 0.00
39.04 33.76 0.00 2.00 0.00 0.00 0.00
39.21 35.15 0.00 2.00 0.00 0.00 0.00
39.37 33.05 0.00 2.00 0.00 0.00 0.00
39.54 28.00 0.00 2.00 0.00 0.00 0.00
39.70 29.78 0.00 2.00 0.00 0.00 0.00
39.86 30.27 0.00 2.00 0.00 0.00 0.00
40.03 27.29 0.00 2.00 0.00 0.00 0.00
40.19 23.75 0.00 2.00 0.00 0.00 0.00
40.36 18.66 0.00 2.00 0.00 0.00 0.00
40.52 15.59 0.00 2.00 0.00 0.00 0.00
40.68 20.27 0.00 2.00 0.00 0.00 0.00
40.85 23.68 0.00 2.00 0.00 0.00 0.00
41.01 21.96 0.00 2.00 0.00 0.00 0.00
41.18 20.61 0.00 2.00 0.00 0.00 0.00
41.34 19.21 0.00 2.00 0.00 0.00 0.00
41.50 18.60 0.00 2.00 0.00 0.00 0.00
41.67 17.14 0.00 2.00 0.00 0.00 0.00
41.83 16.19 0.00 2.00 0.00 0.00 0.00
42.00 16.66 0.00 2.00 0.00 0.00 0.00
42.16 16.43 0.00 2.00 0.00 0.00 0.00
42.32 16.76 0.00 2.00 0.00 0.00 0.00
42.49 17.37 0.00 2.00 0.00 0.00 0.00
42.65 17.06 0.00 2.00 0.00 0.00 0.00
42.82 16.83 0.00 2.00 0.00 0.00 0.00
42.98 17.30 0.00 2.00 0.00 0.00 0.00
43.15 17.91 0.00 2.00 0.00 0.00 0.00
43.31 18.38 0.00 2.00 0.00 0.00 0.00
43.47 18.93 0.00 2.00 0.00 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 60 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 873
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
43.64 19.82 0.00 2.00 0.00 0.00 0.00
43.80 20.58 0.00 2.00 0.00 0.00 0.00
43.97 19.20 0.00 2.00 0.00 0.00 0.00
44.13 18.04 0.00 2.00 0.00 0.00 0.00
44.29 18.37 0.00 2.00 0.00 0.00 0.00
44.46 19.97 0.00 2.00 0.00 0.00 0.00
44.62 19.51 0.00 2.00 0.00 0.00 0.00
44.79 19.20 0.00 2.00 0.00 0.00 0.00
44.95 18.90 0.00 2.00 0.00 0.00 0.00
45.28 18.49 0.00 2.00 0.00 0.00 0.00
45.44 18.19 0.00 2.00 0.00 0.00 0.00
45.61 17.54 0.00 2.00 0.00 0.00 0.00
45.77 16.89 0.00 2.00 0.00 0.00 0.00
45.93 17.21 0.00 2.00 0.00 0.00 0.00
46.10 16.43 0.00 2.00 0.00 0.00 0.00
46.26 16.27 0.00 2.00 0.00 0.00 0.00
46.43 16.52 0.00 2.00 0.00 0.00 0.00
46.59 17.12 0.00 2.00 0.00 0.00 0.00
46.75 17.92 0.00 2.00 0.00 0.00 0.00
46.92 17.55 0.00 2.00 0.00 0.00 0.00
47.08 16.98 0.00 2.00 0.00 0.00 0.00
47.25 16.47 0.00 2.00 0.00 0.00 0.00
47.41 16.11 0.00 2.00 0.00 0.00 0.00
47.57 15.68 0.00 2.00 0.00 0.00 0.00
47.74 15.59 0.00 2.00 0.00 0.00 0.00
47.90 16.93 0.00 2.00 0.00 0.00 0.00
48.07 16.50 0.00 2.00 0.00 0.00 0.00
48.23 15.94 0.00 2.00 0.00 0.00 0.00
48.39 16.46 0.00 2.00 0.00 0.00 0.00
48.56 16.23 0.00 2.00 0.00 0.00 0.00
48.72 15.54 0.00 2.00 0.00 0.00 0.00
48.89 14.91 0.00 2.00 0.00 0.00 0.00
49.05 14.89 0.00 2.00 0.00 0.00 0.00
49.22 15.21 0.00 2.00 0.00 0.00 0.00
49.38 15.46 0.00 2.00 0.00 0.00 0.00
49.54 15.10 0.00 2.00 0.00 0.00 0.00
49.71 14.75 0.00 2.00 0.00 0.00 0.00
49.87 14.40 0.00 2.00 0.00 0.00 0.00
50.04 15.04 0.00 2.00 0.00 0.00 0.00
50.20 16.70 0.00 2.00 0.00 0.00 0.00
50.36 16.34 0.00 2.00 0.00 0.00 0.00
50.53 15.52 0.00 2.00 0.00 0.00 0.00
50.69 14.50 0.00 2.00 0.00 0.00 0.00
50.86 14.09 0.00 2.00 0.00 0.00 0.00
51.02 14.73 0.00 2.00 0.00 0.00 0.00
51.18 15.11 0.00 2.00 0.00 0.00 0.00
51.35 13.97 0.00 2.00 0.00 0.00 0.00
51.51 14.02 0.00 2.00 0.00 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 61 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 874
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
51.68 14.26 0.00 2.00 0.00 0.00 0.00
51.84 14.05 0.00 2.00 0.00 0.00 0.00
52.00 14.43 0.00 2.00 0.00 0.00 0.00
52.17 15.07 0.00 2.00 0.00 0.00 0.00
52.33 14.39 0.00 2.00 0.00 0.00 0.00
52.50 14.51 0.00 2.00 0.00 0.00 0.00
52.66 14.29 0.00 2.00 0.00 0.00 0.00
52.82 14.21 0.00 2.00 0.00 0.00 0.00
52.99 14.78 0.00 2.00 0.00 0.00 0.00
53.15 15.62 0.00 2.00 0.00 0.00 0.00
53.32 15.80 0.00 2.00 0.00 0.00 0.00
53.48 15.32 0.00 2.00 0.00 0.00 0.00
53.64 15.04 0.00 2.00 0.00 0.00 0.00
53.81 15.48 0.00 2.00 0.00 0.00 0.00
53.97 16.31 0.00 2.00 0.00 0.00 0.00
54.14 16.81 0.00 2.00 0.00 0.00 0.00
54.30 17.85 0.00 2.00 0.00 0.00 0.00
54.46 17.69 0.00 2.00 0.00 0.00 0.00
54.63 17.34 0.00 2.00 0.00 0.00 0.00
54.79 17.58 0.00 2.00 0.00 0.00 0.00
54.96 18.22 0.00 2.00 0.00 0.00 0.00
55.12 18.19 0.00 2.00 0.00 0.00 0.00
55.28 19.09 0.00 2.00 0.00 0.00 0.00
55.45 19.79 0.00 2.00 0.00 0.00 0.00
55.61 20.16 0.00 2.00 0.00 0.00 0.00
55.78 20.14 0.00 2.00 0.00 0.00 0.00
55.94 21.04 0.00 2.00 0.00 0.00 0.00
56.11 20.42 0.00 2.00 0.00 0.00 0.00
56.27 20.33 0.00 2.00 0.00 0.00 0.00
56.43 19.97 0.00 2.00 0.00 0.00 0.00
56.60 20.74 0.00 2.00 0.00 0.00 0.00
56.76 21.11 0.00 2.00 0.00 0.00 0.00
56.93 19.90 0.00 2.00 0.00 0.00 0.00
57.09 18.24 0.00 2.00 0.00 0.00 0.00
57.25 17.37 0.00 2.00 0.00 0.00 0.00
57.42 16.58 0.00 2.00 0.00 0.00 0.00
57.58 16.18 0.00 2.00 0.00 0.00 0.00
57.75 16.74 0.00 2.00 0.00 0.00 0.00
57.91 16.34 0.00 2.00 0.00 0.00 0.00
58.07 15.88 0.00 2.00 0.00 0.00 0.00
58.24 15.41 0.00 2.00 0.00 0.00 0.00
58.40 15.65 0.00 2.00 0.00 0.00 0.00
58.57 15.44 0.00 2.00 0.00 0.00 0.00
58.73 15.30 0.00 2.00 0.00 0.00 0.00
58.89 15.03 0.00 2.00 0.00 0.00 0.00
59.06 15.26 0.00 2.00 0.00 0.00 0.00
59.22 14.87 0.00 2.00 0.00 0.00 0.00
59.39 15.11 0.00 2.00 0.00 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 62 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 875
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
59.55 15.55 0.00 2.00 0.00 0.00 0.00
59.71 14.90 0.00 2.00 0.00 0.00 0.00
59.88 14.69 0.00 2.00 0.00 0.00 0.00
60.04 14.43 0.00 2.00 0.00 0.00 0.00
60.21 17.88 0.00 2.00 0.00 0.00 0.00
60.37 25.69 0.00 2.00 0.00 0.00 0.00
60.53 25.01 0.00 2.00 0.00 0.00 0.00
60.70 22.10 0.00 2.00 0.00 0.00 0.00
60.86 35.39 0.00 2.00 0.00 0.00 0.00
61.03 43.88 0.00 2.00 0.00 0.00 0.00
61.19 35.07 0.00 2.00 0.00 0.00 0.00
61.35 35.81 0.00 2.00 0.00 0.00 0.00
61.52 29.16 0.00 2.00 0.00 0.00 0.00
61.68 25.44 0.00 2.00 0.00 0.00 0.00
61.85 22.55 0.00 2.00 0.00 0.00 0.00
62.01 18.76 0.00 2.00 0.00 0.00 0.00
62.17 16.80 0.00 2.00 0.00 0.00 0.00
62.34 16.34 0.00 2.00 0.00 0.00 0.00
62.50 26.79 0.00 2.00 0.00 0.00 0.00
62.67 40.44 0.00 2.00 0.00 0.00 0.00
62.83 34.49 0.00 2.00 0.00 0.00 0.00
63.00 28.66 0.00 2.00 0.00 0.00 0.00
63.16 22.85 0.00 2.00 0.00 0.00 0.00
63.32 32.51 0.00 2.00 0.00 0.00 0.00
63.49 39.47 0.00 2.00 0.00 0.00 0.00
63.65 29.21 0.00 2.00 0.00 0.00 0.00
63.82 22.55 0.00 2.00 0.00 0.00 0.00
63.98 22.52 0.00 2.00 0.00 0.00 0.00
64.14 20.47 0.00 2.00 0.00 0.00 0.00
64.31 22.09 0.00 2.00 0.00 0.00 0.00
64.47 28.89 0.00 2.00 0.00 0.00 0.00
64.64 29.64 0.00 2.00 0.00 0.00 0.00
64.80 41.44 0.00 2.00 0.00 0.00 0.00
64.96 35.30 0.00 2.00 0.00 0.00 0.00
65.13 42.79 0.00 2.00 0.00 0.00 0.00
65.29 44.08 0.00 2.00 0.00 0.00 0.00
65.46 50.02 0.00 2.00 0.00 0.00 0.00
65.62 66.05 0.00 2.00 0.00 0.00 0.00
65.78 57.27 0.00 2.00 0.00 0.00 0.00
65.95 166.56 0.06 2.00 0.03 0.00 0.00
66.11 226.47 0.01 2.00 -0.85 0.00 0.00
66.28 242.25 0.00 2.00 -1.09 0.00 0.00
66.44 182.85 0.04 2.00 -0.20 0.00 0.00
66.60 87.39 0.00 2.00 0.00 0.00 0.00
66.77 57.26 0.00 2.00 0.00 0.00 0.00
66.93 42.64 0.00 2.00 0.00 0.00 0.00
67.10 131.19 0.15 2.00 0.48 0.00 0.00
67.26 185.77 0.03 2.00 -0.24 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 63 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 876
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
67.42 157.81 0.08 2.00 0.15 0.00 0.00
67.59 157.44 0.08 2.00 0.15 0.00 0.00
67.75 169.25 0.06 1.04 -0.01 0.03 0.06
67.92 159.20 0.07 0.77 0.13 0.06 0.12
68.08 163.84 0.06 0.88 0.06 0.05 0.09
68.24 174.52 0.05 1.25 -0.08 0.02 0.04
68.41 164.40 0.06 0.89 0.06 0.04 0.09
68.57 149.13 0.10 0.59 0.26 0.10 0.18
68.74 135.61 0.13 0.45 0.43 0.13 0.27
68.90 131.08 0.15 2.00 0.48 0.00 0.00
69.07 162.82 0.07 2.00 0.08 0.00 0.00
69.23 191.50 0.03 2.00 -0.33 0.00 0.00
69.39 185.55 0.03 2.00 -0.24 0.00 0.00
69.56 188.34 0.03 2.00 -0.28 0.00 0.00
69.72 170.27 0.05 2.00 -0.02 0.00 0.00
69.89 66.07 0.00 2.00 0.00 0.00 0.00
70.05 73.35 0.00 2.00 0.00 0.00 0.00
70.21 164.14 0.06 2.00 0.06 0.00 0.00
70.38 190.15 0.03 2.00 -0.31 0.00 0.00
70.54 156.64 0.08 2.00 0.16 0.00 0.00
70.71 245.60 0.00 2.00 -1.15 0.00 0.00
70.87 217.77 0.01 2.00 -0.72 0.00 0.00
71.03 204.77 0.02 2.00 -0.52 0.00 0.00
71.20 192.70 0.03 2.00 -0.34 0.00 0.00
71.36 182.43 0.04 1.70 -0.20 0.01 0.01
71.53 185.75 0.03 1.96 -0.24 0.00 0.00
71.69 195.86 0.02 2.00 -0.39 0.00 0.00
71.85 215.90 0.01 2.00 -0.69 0.00 0.00
72.02 222.06 0.01 2.00 -0.78 0.00 0.00
72.18 234.73 0.01 2.00 -0.98 0.00 0.00
72.35 235.12 0.01 2.00 -0.98 0.00 0.00
72.51 233.27 0.01 2.00 -0.95 0.00 0.00
72.67 212.07 0.01 2.00 -0.63 0.00 0.00
72.84 192.62 0.03 2.00 -0.34 0.00 0.00
73.00 170.86 0.05 2.00 -0.03 0.00 0.00
73.17 154.53 0.08 2.00 0.19 0.00 0.00
73.33 161.08 0.07 2.00 0.10 0.00 0.00
73.49 167.66 0.06 2.00 0.01 0.00 0.00
73.66 173.21 0.05 2.00 -0.07 0.00 0.00
73.82 178.75 0.04 2.00 -0.14 0.00 0.00
73.99 198.19 0.02 2.00 -0.42 0.00 0.00
74.15 177.16 0.04 2.00 -0.12 0.00 0.00
74.31 163.96 0.06 2.00 0.06 0.00 0.00
74.48 179.64 0.04 2.00 -0.16 0.00 0.00
74.64 140.46 0.12 0.50 0.37 0.12 0.23
74.81 139.98 0.12 0.50 0.37 0.12 0.24
74.97 193.61 0.03 2.00 -0.36 0.00 0.00
75.13 169.24 0.06 1.05 -0.01 0.03 0.06
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 64 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 877
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
75.30 125.91 0.17 0.39 0.54 0.17 0.34
75.46 56.08 0.00 2.00 0.00 0.00 0.00
75.63 162.94 0.07 0.86 0.08 0.05 0.10
75.79 84.59 0.00 2.00 0.00 0.00 0.00
75.96 42.21 0.00 2.00 0.00 0.00 0.00
76.12 27.61 0.00 2.00 0.00 0.00 0.00
76.28 143.53 0.11 0.53 0.33 0.11 0.21
76.45 174.59 0.05 1.26 -0.08 0.02 0.04
76.61 185.18 0.03 1.92 -0.24 0.00 0.00
76.78 157.79 0.08 0.75 0.15 0.06 0.13
76.94 120.82 0.19 0.37 0.60 0.19 0.37
77.10 150.68 0.09 0.63 0.24 0.09 0.18
77.27 161.94 0.07 0.84 0.09 0.05 0.10
77.43 180.11 0.04 2.00 -0.16 0.00 0.00
77.60 195.50 0.03 2.00 -0.38 0.00 0.00
77.76 171.56 0.05 2.00 -0.04 0.00 0.00
77.92 62.84 0.00 2.00 0.00 0.00 0.00
78.09 55.52 0.00 2.00 0.00 0.00 0.00
78.25 37.61 0.00 2.00 0.00 0.00 0.00
78.42 61.55 0.00 2.00 0.00 0.00 0.00
78.58 67.35 0.00 2.00 0.00 0.00 0.00
78.74 101.27 0.30 2.00 0.78 0.00 0.00
78.91 206.55 0.02 2.00 -0.55 0.00 0.00
79.07 214.37 0.01 2.00 -0.67 0.00 0.00
79.24 258.63 0.00 2.00 -1.35 0.00 0.00
Depth:
qc1N,cs:
Gammalim:
FS:
Fa:
Gammamax:
Lat. disp.:
Depth of test point
Adjusted and corrected cone resistance due to fines
Limiting shear strain
Calculated factor of safety against liquefaction
Maximum cyclic shear strain
Lateral displacement
Abbreviations
Total estimated displacement: 5.49
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 2:36:59 PM 65 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 878
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Total cone resistance
qt (tsf)
100 200 300
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Total cone resistance Custom Vs data
Vs (ft/s)
0 Depth (ft) 0
Custom Vs data Rigidity Index
K*G
0 Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Rigidity Index Deposit resistance factor
K(DR)
1 Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Deposit resistance factor Cyclic resistance ratio
CRR
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Cyclic resistance ratio
Aging Calculation Estimation
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software 77Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 879
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Corrected norm. cone resistan
Qtn,cs
100 200 300
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Corrected norm. cone resista SBTn Index Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
SBTn Index Plot
zAzBzAB H1
FS plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
FS plot Stresses vs Depth
Stresses (tsf)
0 2 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642 σv o (EQ )
uo (EQ )EQu
Stresses vs Depth Excess Head
hexc (ft)
0 2 4 6 8 10
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642 hexc
σ'v o=0hA
Excess Head Liq. ejecta demand
LD (ton/ft)
0 5 10
Depth (ft)
4140393837363534333231302928272625242322212019181716151413121110 9876543210
LD: 0.07C R: 13.76
Liq. ejecta demand
Ejecta severity
N/A
Ejecta Severity Estimation
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software 78Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 880
APPENDIX F
CLiq Liquefaction Analyses Reports
for Groundwater at 25-feet Deep
881
LI Q UEFACTION ANALYSIS REPORT
Input parameters and analysis data
Analysis method:
Fines correction method:
Points to test:
Earthquake magnitude Mw:
Peak ground acceleration:
B&I (2014)
B&I (2014)
Based on Ic value
7.00 0.66
G.W.T. (in-situ):
G.W.T. (earthq.):
Average results interval:
Ic cut-off value:
Unit weight calculation:
Project title : G289.01 Paseo Location : Oakley Road, Oakley Baez Geotechnical Group
Geotechnical Engineers
BGG
http://www.baezgeotechnicalgroup.com
CPT file : CPT-01
25.00 ft
25.00 ft
3 2.60
Based on SBT
Use fill:
Fill height:
Fill weight:
Trans. detect. applied:
Kσ applied:
No
N/A
N/A
Yes
Yes
Clay like behavior
applied:
Limit depth applied:
Limit depth:
MSF method:
Sands only
No
N/A
Method
bd Cone resistance
qt (tsf)
100 200
Depth (ft)
50 48
46 44
42 40
38 36
34 32
30 28
26 24
22 20
18 16
14 12
10 8
6 4
2 Cone resistance SBTn Plot
Ic (Robertson 1990)
1 2 3 4
50 48
46 44
42 40
38 36
34 32
30 28
26 24
22 20
18 16
14 12
10 8
6 4
2 SBTn Plot CRR plot
CRR & CSR
0 0.2 0.4 0.6
50 48
46 44
42 40
38 36
34 32
30 28
26 24
22 20
18 16
14 12
10 8
6 4
2 CRR plot
During earthq.
qc1N,cs
0 20 40 60 80 100 120 140 160 180 200
Cyclic Stress Ratio* (CSR*)
0.8 0.7
0.6 0.5
0.4 0.3
0.2 0.1
0 Liquefaction
No Liquefaction
Normalized friction ratio (%)
0.1 1 10
Normalized CPT penetration resistance
1 10
100
1,000
Friction Ratio
Rf (%)
0 2 4 6 8 10
50 48
46 44
42 40
38 36
34 32
30 28
26 24
22 20
18 16
14 12
10 8
6 4
2 Friction Ratio
Mw=71/2, sigma'=1 atm base curve Summary of liquefaction potential FS Plot
Factor of safety
0 0.5 1 1.5 2
50 48
46 44
42 40
38 36
34 32
30 28
26 24
22 20
18 16
14 12
10 8
6 4
2 FS Plot
During earthq.
Zone A1: Cyclic liquefaction likely depending on size and duration of cyclic loading Zone A2: Cyclic liquefaction and strength loss likely depending on loading and ground geometry
Zone B: Liquefaction and post-earthquake strength loss unlikely, check cyclic softening Zone C: Cyclic liquefaction and strength loss possible depending on soil plasticity, brittleness/sensitivity, strain to peak undrained strength and ground geometry CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 1 882
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Norm. cone resistance
Qtn
0 50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Norm. cone resistance
CPT basic interpretation plots (normalized)
Norm. friction ratio
Fr (%)
0 2 4 6 8 10
Depth (ft)
504846444240383634323028262422201816141210
8642
Norm. friction ratio Nom. pore pressure ratio
Bq
-0.2 0 0.2 0.4 0.6 0.8 1
Depth (ft)
504846444240383634323028262422201816141210
8642
Nom. pore pressure ratio SBTn Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
SBTn Plot Norm. Soil Behaviour Type
SBTn (Robertson 1990)
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Depth (ft)
504846444240383634323028262422201816141210
8642
Norm. Soil Behaviour Type
Silty sand & sandy siltSand & silty sandSilty sand & sandy siltClayClay & silty clay Silty sand & sandy silt Clay Sand & silty sand Clay & silty claySilty sand & sandy silt Very dense/stiff soil Clay Very dense/stiff soil Clay Sand & silty sand Clay & silty clayClayClay & silty clay Clay Clay & silty clayClay Clay & silty clay Clay Clay & silty clay Clay & silty clayClay & silty clay Silty sand & sandy silt CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 3Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq SBTn legend
1. Sensitive fine grained
2. Organic material3. Clay to silty clay
4. Clayey silt to silty5. Silty sand to sandy silt6. Clean sand to silty sand
7. Gravely sand to sand8. Very stiff sand to9. Very stiff fine grained Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6625.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
25.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
883
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Norm. cone resistance
qc1N
50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Norm. cone resistance
Liquefaction analysis overall plots (intermediate results) SBTn Index
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
SBTn Index Apparent fines content
FC (%)
0 50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Apparent fines content "Fines" adjustment
Delta qc1N
0 1 2 3 4 5 6 7 8 9 10
Depth (ft)
504846444240383634323028262422201816141210
8642
"Fines" adjustment Corrected norm. cone resistance
qc1N,cs
0 50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Corrected norm. cone resistance
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 4Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6625.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
25.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
884
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 CRR plot
CRR & CSR
0 0.2 0.4 0.6
Depth (ft)
504846444240383634323028262422201816141210
8642
CRR plot
During earthq.
Liquefaction analysis overall plots
FS Plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
504846444240383634323028262422201816141210
8642
FS Plot
During earthq.
Liquefaction potential
LPI
0 5 10 15 20
Depth (ft)
504846444240383634323028262422201816141210
8642
Liquefaction potential Vertical settlements
Settlement (in)
0 0.05 0.1 0.15
Depth (ft)
504846444240383634323028262422201816141210
8642
Vertical settlements Lateral displacements
LDI
0 0.1 0.2 0.3 0.4
Depth (ft)
504846444240383634323028262422201816141210
8642
Lateral displacements
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 5Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6625.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
25.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
F.S. color scheme LPI color scheme
Almost certain it will liquefy
Very likely to liquefyLiquefaction and no liq. are equally likelyUnlike to liquefy Almost certain it will not liquefy
Very high riskHigh riskLow risk
885
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Normalized friction ratio (%)
0.1 1 10
Normalized CPT penetration resistance
1 10
100
1,000
Liquefaction analysis summary plots
qc1N,cs
0 20 40 60 80 100 120 140 160 180 200
Cyclic Stress Ratio*(CSR*)
0.80.70.60.50.40.30.20.1 0
Liquefaction
No Liquefaction
Thickness of surface layer, H1 (m)
0 1 2 3 4 5 6 7 8 9 10
Thickness of liquefiable sand layer, H2 (m)
12.011.010.0
9.08.07.06.05.04.03.02.01.00.0 Analysis PGA: 0.66
PGA
0.40g - 0.50g
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 6Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6625.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
25.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
886
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Norm. cone resistance
qc1N
50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Norm. cone resistance
Check for strength loss plots (Idriss & Boulanger (2008)) Residual strength correction
Delta qc1N-Sr
0 1 2 3 4 5 6 7 8 9 10
Depth (ft)
504846444240383634323028262422201816141210
8642
Residual strength correction Corrected norm. cone resistance qc1Ncs-Sr
0 50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Corrected norm. cone resistance SBTn Index
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
SBTn Index Liquefied Su/Sig'v
Su/Sig'v
0 0.1 0.2 0.3 0.4 0.5
Depth (ft)
504846444240383634323028262422201816141210
8642
Peak Su ratio Liq. Su ratio
Liquefied Su/Sig'v
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 7Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6625.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
25.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
887
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Cone resistance
qt (tsf)
50 100 150 200 250
Depth (ft)
504846444240383634323028262422201816141210
8642
Cone resistance SBTn Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
SBTn Plot FS Plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
504846444240383634323028262422201816141210
8642
FS Plot
During earthq.
Vertical settlements
Settlement (in)
0 0.05 0.1 0.15
Depth (ft)
504846444240383634323028262422201816141210
8642
Vertical settlements
Estimation of post-earthquake settlements
Strain plot
Volumentric strain (%)
0 1 2 3 4 5 6
Depth (ft)
504846444240383634323028262422201816141210
8642
Strain plot
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 35Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Abbreviationsqt:
Ic:
FS:
Volumentric strain:
Total cone resistance (cone resistance qc corrected for pore water effects) Soil Behaviour Type IndexCalculated Factor of Safety against liquefactionPost-liquefaction volumentric strain 888
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Post-earthquake settlement of dry sands ::
Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
0.33 2.12 42.17 1.45 61.16 13 346 0.38 0.003 0.01 10.85 0.00 0.000
0.49 1.85 76.97 1.20 92.10 18 446 0.37 0.003 0.00 10.85 0.00 0.000
0.66 1.64 127.62 1.00 127.62 23 573 0.36 0.003 0.00 10.85 0.00 0.000
0.82 1.60 161.72 1.00 161.72 29 686 0.33 0.004 0.00 10.85 0.00 0.000
0.98 1.59 185.75 1.00 185.75 33 776 0.32 0.004 0.00 10.85 0.00 0.000
1.15 1.62 192.85 1.00 192.85 35 837 0.32 0.004 0.00 10.85 0.00 0.000
1.31 1.64 189.20 1.00 189.20 35 845 0.32 0.005 0.00 10.85 0.00 0.000
1.48 1.67 178.36 1.00 178.36 33 828 0.33 0.006 0.00 10.85 0.00 0.000
1.64 1.69 162.39 1.00 162.39 30 777 0.34 0.007 0.00 10.85 0.00 0.000
1.80 1.74 142.29 1.07 152.18 29 723 0.35 0.009 0.01 10.85 0.00 0.000
1.97 1.78 124.01 1.13 140.22 27 663 0.37 0.012 0.01 10.85 0.01 0.000
2.13 1.81 109.75 1.17 128.08 25 611 0.37 0.015 0.01 10.85 0.01 0.000
2.30 1.81 102.56 1.17 119.78 23 571 0.37 0.019 0.02 10.85 0.01 0.001
2.46 1.81 98.10 1.16 114.04 22 543 0.37 0.024 0.02 10.85 0.02 0.001
2.62 1.81 95.99 1.16 111.42 22 530 0.37 0.028 0.03 10.85 0.02 0.001
2.79 1.80 95.50 1.16 110.48 21 525 0.37 0.032 0.03 10.85 0.03 0.001
2.95 1.80 95.11 1.15 109.70 21 521 0.37 0.036 0.03 10.85 0.03 0.001
3.12 1.80 93.86 1.15 108.32 21 514 0.37 0.041 0.04 10.85 0.03 0.001
3.28 1.81 92.13 1.16 106.88 21 508 0.37 0.046 0.04 10.85 0.04 0.001
3.45 1.81 90.78 1.16 105.71 21 504 0.37 0.052 0.05 10.85 0.04 0.002
3.61 1.81 89.85 1.16 104.61 20 498 0.37 0.058 0.06 10.85 0.05 0.002
3.77 1.81 88.61 1.17 103.31 20 492 0.37 0.066 0.07 10.85 0.06 0.002
3.94 1.82 87.31 1.17 102.36 20 489 0.37 0.073 0.07 10.85 0.06 0.003
4.10 1.83 86.33 1.18 101.88 20 489 0.37 0.079 0.08 10.85 0.07 0.003
4.27 1.83 86.48 1.18 102.45 20 493 0.37 0.083 0.08 10.85 0.07 0.003
4.43 1.83 88.50 1.18 104.68 20 503 0.37 0.083 0.08 10.85 0.07 0.003
4.59 1.82 94.16 1.17 110.41 21 528 0.37 0.076 0.07 10.85 0.06 0.002
4.76 1.80 104.32 1.15 120.17 23 570 0.37 0.063 0.05 10.85 0.05 0.002
4.92 1.78 116.14 1.13 131.49 25 622 0.36 0.052 0.04 10.85 0.03 0.001
5.09 1.81 122.98 1.17 143.32 0 0 0.36 0.000 0.00 0.00 0.00 0.000
5.25 1.94 116.80 1.26 147.50 0 0 0.34 0.000 0.00 0.00 0.00 0.000
5.41 2.14 97.03 1.49 144.78 0 0 0.34 0.000 0.00 0.00 0.00 0.000
5.58 2.40 70.77 2.35 166.57 0 0 0.35 0.000 0.00 0.00 0.00 0.000
5.74 2.63 49.45 3.98 196.89 0 0 0.37 0.000 0.00 0.00 0.00 0.000
5.91 2.77 38.40 5.47 209.91 0 0 0.37 0.000 0.00 0.00 0.00 0.000
6.07 2.80 36.73 5.82 213.95 0 0 0.37 0.000 0.00 0.00 0.00 0.000
6.23 2.77 40.35 5.54 223.41 0 0 0.37 0.000 0.00 0.00 0.00 0.000
6.40 2.73 46.55 5.08 236.24 0 0 0.36 0.000 0.00 0.00 0.00 0.000
6.56 2.69 52.79 4.64 245.22 0 0 0.36 0.000 0.00 0.00 0.00 0.000
6.73 2.66 57.48 4.29 246.86 0 0 0.36 0.000 0.00 0.00 0.00 0.000
6.89 2.64 58.70 4.13 242.58 0 0 0.36 0.000 0.00 0.00 0.00 0.000
7.05 2.65 55.79 4.18 233.18 0 0 0.36 0.000 0.00 0.00 0.00 0.000
7.22 2.67 50.21 4.39 220.65 0 0 0.36 0.000 0.00 0.00 0.00 0.000
7.38 2.72 44.25 4.89 216.16 0 0 0.37 0.000 0.00 0.00 0.00 0.000
7.55 2.77 40.38 5.47 220.68 0 0 0.37 0.000 0.00 0.00 0.00 0.000
7.71 2.81 38.55 5.98 230.66 0 0 0.37 0.000 0.00 0.00 0.00 0.000
7.87 2.83 37.51 6.24 233.93 0 0 0.37 0.000 0.00 0.00 0.00 0.000
8.04 2.83 36.86 6.21 228.94 0 0 0.37 0.000 0.00 0.00 0.00 0.000 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 36 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 889
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Post-earthquake settlement of dry sands :: (continued) Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
8.20 2.80 37.91 5.81 220.38 0 0 0.37 0.000 0.00 0.00 0.00 0.000
8.37 2.70 43.10 4.74 204.17 0 0 0.37 0.000 0.00 0.00 0.00 0.000
8.53 2.63 49.30 4.02 197.97 0 0 0.37 0.000 0.00 0.00 0.00 0.000
8.69 2.59 54.10 3.69 199.60 54 808 0.37 0.069 0.02 10.85 0.02 0.001
8.86 2.61 54.94 3.87 212.58 0 0 0.37 0.000 0.00 0.00 0.00 0.000
9.02 2.66 52.89 4.26 225.31 0 0 0.37 0.000 0.00 0.00 0.00 0.000
9.19 2.69 50.26 4.58 230.01 0 0 0.37 0.000 0.00 0.00 0.00 0.000
9.35 2.65 50.88 4.24 215.84 0 0 0.37 0.000 0.00 0.00 0.00 0.000
9.51 2.51 58.70 3.07 180.40 0 0 0.37 0.000 0.00 0.00 0.00 0.000
9.68 2.33 68.01 2.03 138.23 0 0 0.36 0.000 0.00 0.00 0.00 0.000
9.84 2.19 77.13 1.59 122.32 0 0 0.36 0.000 0.00 0.00 0.00 0.000
10.01 2.16 81.95 1.52 124.55 0 0 0.36 0.000 0.00 0.00 0.00 0.000
10.17 2.27 78.09 1.82 142.30 0 0 0.36 0.000 0.00 0.00 0.00 0.000
10.34 2.44 66.43 2.58 171.15 0 0 0.37 0.000 0.00 0.00 0.00 0.000
10.50 2.62 51.14 3.90 199.54 0 0 0.38 0.000 0.00 0.00 0.00 0.000
10.66 2.73 39.77 4.99 198.55 0 0 0.38 0.000 0.00 0.00 0.00 0.000
10.83 2.77 32.16 5.48 176.12 0 0 0.38 0.000 0.00 0.00 0.00 0.000
10.99 2.78 26.81 5.60 150.11 0 0 0.39 0.000 0.00 0.00 0.00 0.000
11.16 2.75 25.55 5.22 133.49 0 0 0.39 0.000 0.00 0.00 0.00 0.000
11.32 2.63 31.90 4.00 127.53 0 0 0.39 0.000 0.00 0.00 0.00 0.000
11.48 2.31 57.34 1.97 112.69 0 0 0.38 0.000 0.00 0.00 0.00 0.000
11.65 2.01 99.91 1.31 131.35 0 0 0.36 0.000 0.00 0.00 0.00 0.000
11.81 1.86 140.78 1.21 169.75 0 0 0.34 0.000 0.00 0.00 0.00 0.000
11.98 1.86 155.06 1.21 187.89 0 0 0.33 0.000 0.00 0.00 0.00 0.000
12.14 2.01 132.13 1.31 173.48 0 0 0.33 0.000 0.00 0.00 0.00 0.000
12.30 2.23 95.69 1.69 162.17 0 0 0.36 0.000 0.00 0.00 0.00 0.000
12.47 2.45 66.75 2.67 178.44 0 0 0.37 0.000 0.00 0.00 0.00 0.000
12.63 2.58 56.93 3.61 205.35 0 0 0.38 0.000 0.00 0.00 0.00 0.000
12.80 2.62 57.07 3.90 222.74 0 0 0.37 0.000 0.00 0.00 0.00 0.000
12.96 2.47 75.02 2.80 210.39 0 0 0.37 0.000 0.00 0.00 0.00 0.000
13.12 2.22 113.06 1.65 186.88 0 0 0.34 0.000 0.00 0.00 0.00 0.000
13.29 1.97 153.26 1.29 197.16 0 0 0.32 0.000 0.00 0.00 0.00 0.000
13.45 1.85 171.19 1.20 206.15 0 0 0.32 0.000 0.00 0.00 0.00 0.000
13.62 1.88 158.82 1.22 194.00 39 1393 0.33 0.040 0.02 10.85 0.02 0.001
13.78 2.00 135.37 1.31 176.85 37 1380 0.34 0.042 0.02 10.85 0.02 0.001
13.94 2.09 119.90 1.41 168.75 36 1374 0.34 0.043 0.02 10.85 0.02 0.001
14.11 2.03 125.27 1.34 167.51 35 1350 0.35 0.045 0.02 10.85 0.02 0.001
14.27 1.94 138.13 1.27 174.95 36 1352 0.33 0.046 0.02 10.85 0.02 0.001
14.44 1.92 147.83 1.25 184.91 0 0 0.33 0.000 0.00 0.00 0.00 0.000
14.60 2.03 140.89 1.34 188.55 0 0 0.32 0.000 0.00 0.00 0.00 0.000
14.76 2.21 122.46 1.64 201.23 0 0 0.32 0.000 0.00 0.00 0.00 0.000
14.93 2.36 99.54 2.19 217.98 0 0 0.35 0.000 0.00 0.00 0.00 0.000
15.09 2.51 77.04 3.07 236.20 0 0 0.36 0.000 0.00 0.00 0.00 0.000
15.26 2.62 59.66 3.93 234.28 0 0 0.37 0.000 0.00 0.00 0.00 0.000
15.42 2.70 49.10 4.69 230.25 0 0 0.38 0.000 0.00 0.00 0.00 0.000
15.58 2.72 44.03 4.89 215.29 0 0 0.38 0.000 0.00 0.00 0.00 0.000
15.75 2.70 42.39 4.72 199.89 0 0 0.38 0.000 0.00 0.00 0.00 0.000
15.91 2.71 40.13 4.77 191.32 0 0 0.38 0.000 0.00 0.00 0.00 0.000 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 37 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 890
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Post-earthquake settlement of dry sands :: (continued) Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
16.08 2.71 38.40 4.86 186.80 0 0 0.38 0.000 0.00 0.00 0.00 0.000
16.24 2.72 38.24 4.89 186.95 0 0 0.39 0.000 0.00 0.00 0.00 0.000
16.40 2.72 40.08 4.93 197.70 0 0 0.38 0.000 0.00 0.00 0.00 0.000
16.57 2.69 46.29 4.59 212.49 0 0 0.38 0.000 0.00 0.00 0.00 0.000
16.73 2.59 60.69 3.63 220.35 59 1471 0.38 0.048 0.01 10.85 0.01 0.000
16.90 2.50 74.00 2.99 221.32 57 1630 0.36 0.041 0.01 10.85 0.01 0.000
17.06 2.50 72.68 3.01 218.69 56 1621 0.36 0.042 0.01 10.85 0.01 0.000
17.23 2.58 58.49 3.55 207.74 56 1441 0.38 0.053 0.02 10.85 0.01 0.001
17.39 2.71 40.87 4.77 194.90 0 0 0.38 0.000 0.00 0.00 0.00 0.000
17.55 2.76 32.54 5.37 174.69 0 0 0.39 0.000 0.00 0.00 0.00 0.000
17.72 2.76 29.63 5.42 160.62 0 0 0.39 0.000 0.00 0.00 0.00 0.000
17.88 2.76 29.47 5.40 159.05 0 0 0.39 0.000 0.00 0.00 0.00 0.000
18.05 2.78 30.61 5.57 170.40 0 0 0.39 0.000 0.00 0.00 0.00 0.000
18.21 2.80 31.80 5.89 187.44 0 0 0.39 0.000 0.00 0.00 0.00 0.000
18.37 2.74 37.63 5.16 194.23 0 0 0.39 0.000 0.00 0.00 0.00 0.000
18.54 2.48 58.57 2.87 168.37 0 0 0.38 0.000 0.00 0.00 0.00 0.000
18.70 2.16 97.31 1.52 148.28 0 0 0.36 0.000 0.00 0.00 0.00 0.000
18.87 1.95 134.15 1.27 170.44 0 0 0.34 0.000 0.00 0.00 0.00 0.000
19.03 1.89 151.10 1.23 186.33 0 0 0.34 0.000 0.00 0.00 0.00 0.000
19.19 2.00 131.82 1.31 172.28 0 0 0.34 0.000 0.00 0.00 0.00 0.000
19.36 2.18 95.56 1.57 150.03 0 0 0.36 0.000 0.00 0.00 0.00 0.000
19.52 2.40 59.12 2.39 141.11 0 0 0.38 0.000 0.00 0.00 0.00 0.000
19.69 2.55 38.96 3.38 131.57 0 0 0.39 0.000 0.00 0.00 0.00 0.000
19.85 2.55 33.35 3.37 112.35 30 907 0.39 0.224 0.14 10.85 0.12 0.005
20.01 2.55 32.61 3.31 108.07 28 885 0.39 0.248 0.16 10.85 0.14 0.005
20.18 2.56 33.82 3.44 116.30 31 945 0.39 0.201 0.12 10.85 0.10 0.004
20.34 2.59 35.70 3.71 132.31 36 1048 0.39 0.146 0.07 10.85 0.06 0.002
20.51 2.63 37.29 4.02 149.77 0 0 0.39 0.000 0.00 0.00 0.00 0.000
20.67 2.66 38.21 4.34 165.65 0 0 0.39 0.000 0.00 0.00 0.00 0.000
20.83 2.71 37.32 4.80 178.98 0 0 0.38 0.000 0.00 0.00 0.00 0.000
21.00 2.73 36.04 5.04 181.81 0 0 0.39 0.000 0.00 0.00 0.00 0.000
21.16 2.75 34.49 5.25 180.93 0 0 0.39 0.000 0.00 0.00 0.00 0.000
21.33 2.75 32.94 5.29 174.09 0 0 0.39 0.000 0.00 0.00 0.00 0.000
21.49 2.75 32.38 5.28 170.88 0 0 0.39 0.000 0.00 0.00 0.00 0.000
21.65 2.76 31.96 5.38 171.87 0 0 0.39 0.000 0.00 0.00 0.00 0.000
21.82 2.76 32.33 5.41 175.02 0 0 0.39 0.000 0.00 0.00 0.00 0.000
21.98 2.77 32.42 5.45 176.63 0 0 0.39 0.000 0.00 0.00 0.00 0.000
22.15 2.77 32.39 5.43 175.94 0 0 0.39 0.000 0.00 0.00 0.00 0.000
22.31 2.77 32.14 5.46 175.36 0 0 0.39 0.000 0.00 0.00 0.00 0.000
22.47 2.78 31.82 5.58 177.44 0 0 0.39 0.000 0.00 0.00 0.00 0.000
22.64 2.79 31.09 5.74 178.37 0 0 0.39 0.000 0.00 0.00 0.00 0.000
22.80 2.80 30.57 5.83 178.37 0 0 0.39 0.000 0.00 0.00 0.00 0.000
22.97 2.80 30.12 5.83 175.56 0 0 0.39 0.000 0.00 0.00 0.00 0.000
23.13 2.79 30.12 5.78 174.05 0 0 0.39 0.000 0.00 0.00 0.00 0.000
23.30 2.80 30.07 5.83 175.22 0 0 0.39 0.000 0.00 0.00 0.00 0.000
23.46 2.80 30.24 5.85 176.80 0 0 0.39 0.000 0.00 0.00 0.00 0.000
23.62 2.80 30.27 5.85 177.02 0 0 0.39 0.000 0.00 0.00 0.00 0.000
23.79 2.81 29.47 5.93 174.69 0 0 0.39 0.000 0.00 0.00 0.00 0.000 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 38 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 891
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Post-earthquake settlement of dry sands :: (continued) Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
23.95 2.83 27.40 6.30 172.57 0 0 0.39 0.000 0.00 0.00 0.00 0.000
24.12 2.88 24.80 6.86 170.10 0 0 0.39 0.000 0.00 0.00 0.00 0.000
24.28 2.91 22.63 7.36 166.56 0 0 0.39 0.000 0.00 0.00 0.00 0.000
24.44 2.92 21.29 7.53 160.36 0 0 0.39 0.000 0.00 0.00 0.00 0.000
24.61 2.93 20.45 7.69 157.21 0 0 0.39 0.000 0.00 0.00 0.00 0.000
24.77 2.92 19.43 7.52 146.09 0 0 0.39 0.000 0.00 0.00 0.00 0.000
24.94 2.93 18.18 7.66 139.18 0 0 0.39 0.000 0.00 0.00 0.00 0.000 Total estimated settlement: 0.05
Abbreviations
Qtn:
Kc:
Qtn,cs:
Gmax:
CSR:
γ:
evol(15):
Nc:
ev:
Settle.:
Normalized cone resistance
Fines correction factor
Equivalent clean sand normalized cone resistance
Small strain shear modulus
Soil cyclic stress ratio
Cyclic shear strain
Volumetric strain after 15 cycles
Equivalent number of cycles
Volumetric strain
Calculated settlement
:: Post-earthquake settlement due to soil liquefaction ::
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
25.10 21.24 2.00 0.00 0.00 1.00 25.26 20.02 2.00 0.00 0.00 1.00
25.43 19.67 2.00 0.00 0.00 1.00 25.59 26.21 2.00 0.00 0.00 1.00
25.76 27.11 2.00 0.00 0.00 1.00 25.92 26.28 2.00 0.00 0.00 1.00
26.08 25.12 2.00 0.00 0.00 1.00 26.25 25.48 2.00 0.00 0.00 1.00
26.41 25.52 2.00 0.00 0.00 1.00 26.58 25.32 2.00 0.00 0.00 1.00
26.74 23.94 2.00 0.00 0.00 1.00 26.90 24.05 2.00 0.00 0.00 1.00
27.07 24.95 2.00 0.00 0.00 1.00 27.23 25.38 2.00 0.00 0.00 1.00
27.40 25.18 2.00 0.00 0.00 1.00 27.56 24.83 2.00 0.00 0.00 1.00
27.72 26.04 2.00 0.00 0.00 1.00 27.89 28.74 2.00 0.00 0.00 1.00
28.05 26.03 2.00 0.00 0.00 1.00 28.22 26.68 2.00 0.00 0.00 1.00
28.38 28.36 2.00 0.00 0.00 1.00 28.54 27.84 2.00 0.00 0.00 1.00
28.71 27.56 2.00 0.00 0.00 1.00 28.87 26.73 2.00 0.00 0.00 1.00
29.04 25.14 2.00 0.00 0.00 1.00 29.20 23.09 2.00 0.00 0.00 1.00
29.36 23.60 2.00 0.00 0.00 1.00 29.53 22.94 2.00 0.00 0.00 1.00
29.69 23.75 2.00 0.00 0.00 1.00 29.86 24.09 2.00 0.00 0.00 1.00
30.02 25.43 2.00 0.00 0.00 1.00 30.19 24.62 2.00 0.00 0.00 1.00
30.35 26.04 2.00 0.00 0.00 1.00 30.51 26.23 2.00 0.00 0.00 1.00
30.68 26.80 2.00 0.00 0.00 1.00 30.84 26.45 2.00 0.00 0.00 1.00
31.01 26.33 2.00 0.00 0.00 1.00 31.17 26.21 2.00 0.00 0.00 1.00
31.33 24.73 2.00 0.00 0.00 1.00 31.50 22.27 2.00 0.00 0.00 1.00
31.66 20.66 2.00 0.00 0.00 1.00 31.83 21.22 2.00 0.00 0.00 1.00
31.99 21.79 2.00 0.00 0.00 1.00 32.15 24.31 2.00 0.00 0.00 1.00
32.32 19.93 2.00 0.00 0.00 1.00 32.48 17.91 2.00 0.00 0.00 1.00
32.65 18.32 2.00 0.00 0.00 1.00 32.81 20.14 2.00 0.00 0.00 1.00
32.97 21.74 2.00 0.00 0.00 1.00 33.14 22.45 2.00 0.00 0.00 1.00
33.30 23.90 2.00 0.00 0.00 1.00 33.47 24.31 2.00 0.00 0.00 1.00
33.63 24.50 2.00 0.00 0.00 1.00 33.79 24.76 2.00 0.00 0.00 1.00
33.96 23.97 2.00 0.00 0.00 1.00 34.12 21.58 2.00 0.00 0.00 1.00 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 39 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 892
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Post-earthquake settlement due to soil liquefaction :: (continued) Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
34.29 21.10 2.00 0.00 0.00 1.00 34.45 21.44 2.00 0.00 0.00 1.00
34.61 23.46 2.00 0.00 0.00 1.00 34.78 23.35 2.00 0.00 0.00 1.00
34.94 26.50 2.00 0.00 0.00 1.00 35.11 24.09 2.00 0.00 0.00 1.00
35.27 21.71 2.00 0.00 0.00 1.00 35.43 21.68 2.00 0.00 0.00 1.00
35.60 22.74 2.00 0.00 0.00 1.00 35.76 24.24 2.00 0.00 0.00 1.00
35.93 26.84 2.00 0.00 0.00 1.00 36.09 29.89 2.00 0.00 0.00 1.00
36.26 31.25 2.00 0.00 0.00 1.00 36.42 36.82 2.00 0.00 0.00 1.00
36.58 43.94 2.00 0.00 0.00 1.00 36.75 44.03 2.00 0.00 0.00 1.00
36.91 37.42 2.00 0.00 0.00 1.00 37.08 32.60 2.00 0.00 0.00 1.00
37.24 30.25 2.00 0.00 0.00 1.00 37.40 30.80 2.00 0.00 0.00 1.00
37.57 33.86 2.00 0.00 0.00 1.00 37.73 36.40 2.00 0.00 0.00 1.00
37.90 31.52 2.00 0.00 0.00 1.00 38.06 25.38 2.00 0.00 0.00 1.00
38.22 24.53 2.00 0.00 0.00 1.00 38.39 57.54 2.00 0.00 0.00 1.00
38.55 99.14 2.00 0.00 0.00 1.00 38.72 62.07 2.00 0.00 0.00 1.00
38.88 54.42 2.00 0.00 0.00 1.00 39.04 45.75 2.00 0.00 0.00 1.00
39.21 34.44 2.00 0.00 0.00 1.00 39.37 31.55 2.00 0.00 0.00 1.00
39.54 28.03 2.00 0.00 0.00 1.00 39.70 28.21 2.00 0.00 0.00 1.00
39.86 31.22 2.00 0.00 0.00 1.00 40.03 38.65 2.00 0.00 0.00 1.00
40.19 31.83 2.00 0.00 0.00 1.00 40.36 37.39 2.00 0.00 0.00 1.00
40.52 141.85 2.00 0.00 0.00 1.00 40.68 160.46 2.00 0.00 0.00 1.00
40.85 162.33 0.92 0.98 0.02 1.00 41.01 150.24 0.67 2.07 0.04 1.00
41.18 53.76 2.00 0.00 0.00 1.00 41.34 44.34 2.00 0.00 0.00 1.00
41.50 57.85 2.00 0.00 0.00 1.00 41.67 66.08 2.00 0.00 0.00 1.00
41.83 61.88 2.00 0.00 0.00 1.00 42.00 44.03 2.00 0.00 0.00 1.00
42.16 32.48 2.00 0.00 0.00 1.00 42.32 25.21 2.00 0.00 0.00 1.00
42.49 29.49 2.00 0.00 0.00 1.00 42.65 29.19 2.00 0.00 0.00 1.00
42.82 56.84 2.00 0.00 0.00 1.00 42.98 161.92 0.90 1.03 0.02 1.00
43.15 68.79 2.00 0.00 0.00 1.00 43.31 49.81 2.00 0.00 0.00 1.00
43.47 51.44 2.00 0.00 0.00 1.00 43.64 54.80 2.00 0.00 0.00 1.00
43.80 42.21 2.00 0.00 0.00 1.00 43.97 56.47 2.00 0.00 0.00 1.00
44.13 43.34 2.00 0.00 0.00 1.00 44.29 40.50 2.00 0.00 0.00 1.00
44.46 31.66 2.00 0.00 0.00 1.00 44.62 26.96 2.00 0.00 0.00 1.00
44.79 55.11 2.00 0.00 0.00 1.00 44.95 182.78 1.88 0.05 0.00 1.00
45.11 160.10 0.85 1.18 0.02 1.00 45.28 175.51 1.40 0.33 0.01 1.00
45.44 179.17 1.62 0.18 0.00 1.00 45.61 71.09 2.00 0.00 0.00 1.00
45.77 50.96 2.00 0.00 0.00 1.00 45.93 52.93 2.00 0.00 0.00 1.00
46.10 47.25 2.00 0.00 0.00 1.00 46.26 47.13 2.00 0.00 0.00 1.00
46.43 38.03 2.00 0.00 0.00 1.00 46.59 34.63 2.00 0.00 0.00 1.00
46.75 39.67 2.00 0.00 0.00 1.00 46.92 48.61 2.00 0.00 0.00 1.00
47.08 47.10 2.00 0.00 0.00 1.00 47.25 50.97 2.00 0.00 0.00 1.00
47.41 54.04 2.00 0.00 0.00 1.00 47.57 47.08 2.00 0.00 0.00 1.00
47.74 77.13 2.00 0.00 0.00 1.00 47.90 74.33 2.00 0.00 0.00 1.00
48.07 53.62 2.00 0.00 0.00 1.00 48.23 65.68 2.00 0.00 0.00 1.00
48.39 91.32 2.00 0.00 0.00 1.00 48.56 225.11 2.00 0.00 0.00 1.00
48.72 214.33 2.00 0.00 0.00 1.00 48.89 217.50 2.00 0.00 0.00 1.00
49.05 221.25 2.00 0.00 0.00 1.00 49.22 195.43 2.00 0.00 0.00 1.00
49.38 206.56 2.00 0.00 0.00 1.00 49.54 228.21 2.00 0.00 0.00 1.00
49.71 271.80 2.00 0.00 0.00 1.00 49.87 275.64 2.00 0.00 0.00 1.00 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 40 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 893
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Post-earthquake settlement due to soil liquefaction :: (continued) Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
Total estimated settlement: 0.11
Abbreviations
Qtn,cs:
FS:
ev (%):
DF:
Settlement:
Equivalent clean sand normalized cone resistance
Factor of safety against liquefaction
Post-liquefaction volumentric strain
ev depth weighting factor
Calculated settlement
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 41 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 894
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Cone resistance
qt (tsf)
100 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Cone resistance SBTn Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
SBTn Plot Corrected norm. cone resista
qc1N,cs
0 50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Corrected norm. cone resista FS Plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
504846444240383634323028262422201816141210
8642
FS Plot
During earthq.
Cyclic shear strain
Gamma max (%)
0 10 20 30 40 50 60
Depth (ft)
504846444240383634323028262422201816141210
8642
Cyclic shear strain Lateral displacements
LDI
0 0.2 0.4
Depth (ft)
504846444240383634323028262422201816141210
8642
Lateral displacements
Estimation of post-earthquake lateral Displacements
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 42Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq qt: Total cone resistance (cone resistance qc corrected for pore water effects) Ic: Soil Behaviour Type Index
qc1N,cs: Equivalent clean sand normalized CPT total cone resistance F.S.: Factor of safetyγmax: Maximum cyclic shear strain LDI: Lateral displacement index
Abbreviations
895
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Lateral displacement index calculation ::
Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
25.10 21.24 0.00 2.00 0.00 0.00 0.00
25.26 20.02 0.00 2.00 0.00 0.00 0.00
25.43 19.67 0.00 2.00 0.00 0.00 0.00
25.59 26.21 0.00 2.00 0.00 0.00 0.00
25.76 27.11 0.00 2.00 0.00 0.00 0.00
25.92 26.28 0.00 2.00 0.00 0.00 0.00
26.08 25.12 0.00 2.00 0.00 0.00 0.00
26.25 25.48 0.00 2.00 0.00 0.00 0.00
26.41 25.52 0.00 2.00 0.00 0.00 0.00
26.58 25.32 0.00 2.00 0.00 0.00 0.00
26.74 23.94 0.00 2.00 0.00 0.00 0.00
26.90 24.05 0.00 2.00 0.00 0.00 0.00
27.07 24.95 0.00 2.00 0.00 0.00 0.00
27.23 25.38 0.00 2.00 0.00 0.00 0.00
27.40 25.18 0.00 2.00 0.00 0.00 0.00
27.56 24.83 0.00 2.00 0.00 0.00 0.00
27.72 26.04 0.00 2.00 0.00 0.00 0.00
27.89 28.74 0.00 2.00 0.00 0.00 0.00
28.05 26.03 0.00 2.00 0.00 0.00 0.00
28.22 26.68 0.00 2.00 0.00 0.00 0.00
28.38 28.36 0.00 2.00 0.00 0.00 0.00
28.54 27.84 0.00 2.00 0.00 0.00 0.00
28.71 27.56 0.00 2.00 0.00 0.00 0.00
28.87 26.73 0.00 2.00 0.00 0.00 0.00
29.04 25.14 0.00 2.00 0.00 0.00 0.00
29.20 23.09 0.00 2.00 0.00 0.00 0.00
29.36 23.60 0.00 2.00 0.00 0.00 0.00
29.53 22.94 0.00 2.00 0.00 0.00 0.00
29.69 23.75 0.00 2.00 0.00 0.00 0.00
29.86 24.09 0.00 2.00 0.00 0.00 0.00
30.02 25.43 0.00 2.00 0.00 0.00 0.00
30.19 24.62 0.00 2.00 0.00 0.00 0.00
30.35 26.04 0.00 2.00 0.00 0.00 0.00
30.51 26.23 0.00 2.00 0.00 0.00 0.00
30.68 26.80 0.00 2.00 0.00 0.00 0.00
30.84 26.45 0.00 2.00 0.00 0.00 0.00
31.01 26.33 0.00 2.00 0.00 0.00 0.00
31.17 26.21 0.00 2.00 0.00 0.00 0.00
31.33 24.73 0.00 2.00 0.00 0.00 0.00
31.50 22.27 0.00 2.00 0.00 0.00 0.00
31.66 20.66 0.00 2.00 0.00 0.00 0.00
31.83 21.22 0.00 2.00 0.00 0.00 0.00
31.99 21.79 0.00 2.00 0.00 0.00 0.00
32.15 24.31 0.00 2.00 0.00 0.00 0.00
32.32 19.93 0.00 2.00 0.00 0.00 0.00
32.48 17.91 0.00 2.00 0.00 0.00 0.00
32.65 18.32 0.00 2.00 0.00 0.00 0.00
32.81 20.14 0.00 2.00 0.00 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 43 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 896
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
32.97 21.74 0.00 2.00 0.00 0.00 0.00
33.14 22.45 0.00 2.00 0.00 0.00 0.00
33.30 23.90 0.00 2.00 0.00 0.00 0.00
33.47 24.31 0.00 2.00 0.00 0.00 0.00
33.63 24.50 0.00 2.00 0.00 0.00 0.00
33.79 24.76 0.00 2.00 0.00 0.00 0.00
33.96 23.97 0.00 2.00 0.00 0.00 0.00
34.12 21.58 0.00 2.00 0.00 0.00 0.00
34.29 21.10 0.00 2.00 0.00 0.00 0.00
34.45 21.44 0.00 2.00 0.00 0.00 0.00
34.61 23.46 0.00 2.00 0.00 0.00 0.00
34.78 23.35 0.00 2.00 0.00 0.00 0.00
34.94 26.50 0.00 2.00 0.00 0.00 0.00
35.11 24.09 0.00 2.00 0.00 0.00 0.00
35.27 21.71 0.00 2.00 0.00 0.00 0.00
35.43 21.68 0.00 2.00 0.00 0.00 0.00
35.60 22.74 0.00 2.00 0.00 0.00 0.00
35.76 24.24 0.00 2.00 0.00 0.00 0.00
35.93 26.84 0.00 2.00 0.00 0.00 0.00
36.09 29.89 0.00 2.00 0.00 0.00 0.00
36.26 31.25 0.00 2.00 0.00 0.00 0.00
36.42 36.82 0.00 2.00 0.00 0.00 0.00
36.58 43.94 0.00 2.00 0.00 0.00 0.00
36.75 44.03 0.00 2.00 0.00 0.00 0.00
36.91 37.42 0.00 2.00 0.00 0.00 0.00
37.08 32.60 0.00 2.00 0.00 0.00 0.00
37.24 30.25 0.00 2.00 0.00 0.00 0.00
37.40 30.80 0.00 2.00 0.00 0.00 0.00
37.57 33.86 0.00 2.00 0.00 0.00 0.00
37.73 36.40 0.00 2.00 0.00 0.00 0.00
37.90 31.52 0.00 2.00 0.00 0.00 0.00
38.06 25.38 0.00 2.00 0.00 0.00 0.00
38.22 24.53 0.00 2.00 0.00 0.00 0.00
38.39 57.54 0.00 2.00 0.00 0.00 0.00
38.55 99.14 0.00 2.00 0.00 0.00 0.00
38.72 62.07 0.00 2.00 0.00 0.00 0.00
38.88 54.42 0.00 2.00 0.00 0.00 0.00
39.04 45.75 0.00 2.00 0.00 0.00 0.00
39.21 34.44 0.00 2.00 0.00 0.00 0.00
39.37 31.55 0.00 2.00 0.00 0.00 0.00
39.54 28.03 0.00 2.00 0.00 0.00 0.00
39.70 28.21 0.00 2.00 0.00 0.00 0.00
39.86 31.22 0.00 2.00 0.00 0.00 0.00
40.03 38.65 0.00 2.00 0.00 0.00 0.00
40.19 31.83 0.00 2.00 0.00 0.00 0.00
40.36 37.39 0.00 2.00 0.00 0.00 0.00
40.52 141.85 0.11 2.00 0.35 0.00 0.00
40.68 160.46 0.07 2.00 0.11 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 44 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 897
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
40.85 162.33 0.07 0.92 0.08 0.04 0.08
41.01 150.24 0.09 0.67 0.24 0.08 0.16
41.18 53.76 0.00 2.00 0.00 0.00 0.00
41.34 44.34 0.00 2.00 0.00 0.00 0.00
41.50 57.85 0.00 2.00 0.00 0.00 0.00
41.67 66.08 0.00 2.00 0.00 0.00 0.00
41.83 61.88 0.00 2.00 0.00 0.00 0.00
42.00 44.03 0.00 2.00 0.00 0.00 0.00
42.16 32.48 0.00 2.00 0.00 0.00 0.00
42.32 25.21 0.00 2.00 0.00 0.00 0.00
42.49 29.49 0.00 2.00 0.00 0.00 0.00
42.65 29.19 0.00 2.00 0.00 0.00 0.00
42.82 56.84 0.00 2.00 0.00 0.00 0.00
42.98 161.92 0.07 0.90 0.09 0.04 0.08
43.15 68.79 0.00 2.00 0.00 0.00 0.00
43.31 49.81 0.00 2.00 0.00 0.00 0.00
43.47 51.44 0.00 2.00 0.00 0.00 0.00
43.64 54.80 0.00 2.00 0.00 0.00 0.00
43.80 42.21 0.00 2.00 0.00 0.00 0.00
43.97 56.47 0.00 2.00 0.00 0.00 0.00
44.13 43.34 0.00 2.00 0.00 0.00 0.00
44.29 40.50 0.00 2.00 0.00 0.00 0.00
44.46 31.66 0.00 2.00 0.00 0.00 0.00
44.62 26.96 0.00 2.00 0.00 0.00 0.00
44.79 55.11 0.00 2.00 0.00 0.00 0.00
44.95 182.78 0.04 1.88 -0.20 0.00 0.00
45.11 160.10 0.07 0.85 0.11 0.05 0.09
45.28 175.51 0.05 1.40 -0.10 0.02 0.03
45.44 179.17 0.04 1.62 -0.15 0.01 0.02
45.61 71.09 0.00 2.00 0.00 0.00 0.00
45.77 50.96 0.00 2.00 0.00 0.00 0.00
45.93 52.93 0.00 2.00 0.00 0.00 0.00
46.10 47.25 0.00 2.00 0.00 0.00 0.00
46.26 47.13 0.00 2.00 0.00 0.00 0.00
46.43 38.03 0.00 2.00 0.00 0.00 0.00
46.59 34.63 0.00 2.00 0.00 0.00 0.00
46.75 39.67 0.00 2.00 0.00 0.00 0.00
46.92 48.61 0.00 2.00 0.00 0.00 0.00
47.08 47.10 0.00 2.00 0.00 0.00 0.00
47.25 50.97 0.00 2.00 0.00 0.00 0.00
47.41 54.04 0.00 2.00 0.00 0.00 0.00
47.57 47.08 0.00 2.00 0.00 0.00 0.00
47.74 77.13 0.00 2.00 0.00 0.00 0.00
47.90 74.33 0.00 2.00 0.00 0.00 0.00
48.07 53.62 0.00 2.00 0.00 0.00 0.00
48.23 65.68 0.00 2.00 0.00 0.00 0.00
48.39 91.32 0.00 2.00 0.00 0.00 0.00
48.56 225.11 0.01 2.00 -0.83 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 45 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 898
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
48.72 214.33 0.01 2.00 -0.67 0.00 0.00
48.89 217.50 0.01 2.00 -0.71 0.00 0.00
49.05 221.25 0.01 2.00 -0.77 0.00 0.00
49.22 195.43 0.03 2.00 -0.38 0.00 0.00
49.38 206.56 0.02 2.00 -0.55 0.00 0.00
49.54 228.21 0.01 2.00 -0.88 0.00 0.00
49.71 271.80 0.00 2.00 -1.56 0.00 0.00
49.87 275.64 0.00 2.00 -1.62 0.00 0.00
Depth:
qc1N,cs:
Gammalim:
FS:
Fa:
Gammamax:
Lat. disp.:
Depth of test point
Adjusted and corrected cone resistance due to fines
Limiting shear strain
Calculated factor of safety against liquefaction
Maximum cyclic shear strain
Lateral displacement
Abbreviations
Total estimated displacement: 0.47
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:47:40 AM 46 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 899
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Total cone resistance
qt (tsf)
50 100 150 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Total cone resistance Custom Vs data
Vs (ft/s)
0 Depth (ft) 0
Custom Vs data Rigidity Index
K*G
0 Depth (ft)
504846444240383634323028262422201816141210
8642
Rigidity Index Deposit resistance factor
K(DR)
1 Depth (ft)
504846444240383634323028262422201816141210
8642
Deposit resistance factor Cyclic resistance ratio
CRR
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
Cyclic resistance ratio
Aging Calculation Estimation
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software 54Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 900
This software is licensed to: Baez Geotechnical Group CPT name: CPT-01 Corrected norm. cone resistan
Qtn,cs
100 200
Depth (ft)
504846444240383634323028262422201816141210
8642
Corrected norm. cone resista SBTn Index Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
504846444240383634323028262422201816141210
8642
SBTn Index Plot
zAzBzAB H1
FS plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
504846444240383634323028262422201816141210
8642
FS plot Stresses vs Depth
Stresses (tsf)
0 1 2 3
Depth (ft)
504846444240383634323028262422201816141210
8642
σv o (EQ )uo (EQ )EQu
Stresses vs Depth Excess Head
hexc (ft)
0 2 4 6 8 10
Depth (ft)
504846444240383634323028262422201816141210
8642
hexcσ'v o=0hA
Excess Head Liq. ejecta demand
LD (ton/ft)
0 20 40 60 80
Depth (ft)
4140393837363534333231302928272625242322212019181716151413121110 9876543210
LD: 0.00C R: 79.62
Liq. ejecta demand
Ejecta severity
N/A
Ejecta Severity Estimation
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software 55Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 901
LI Q UEFACTION ANALYSIS REPORT
Input parameters and analysis data
Analysis method:
Fines correction method:
Points to test:
Earthquake magnitude Mw:
Peak ground acceleration:
B&I (2014)
B&I (2014)
Based on Ic value
7.00 0.66
G.W.T. (in-situ):
G.W.T. (earthq.):
Average results interval:
Ic cut-off value:
Unit weight calculation:
Project title : G289.01 Paseo Location : Oakley Road, Oakley Baez Geotechnical Group
Geotechnical Engineers
BGG
http://www.baezgeotechnicalgroup.com
CPT file : CPT-02
25.00 ft
25.00 ft
3 2.60
Based on SBT
Use fill:
Fill height:
Fill weight:
Trans. detect. applied:
Kσ applied:
No
N/A
N/A
Yes
Yes
Clay like behavior
applied:
Limit depth applied:
Limit depth:
MSF method:
Sands only
No
N/A
Method
bd Cone resistance
qt (tsf)
100 200 300
Depth (ft)
75 70
65 60
55 50
45 40
35 30
25 20
15 10
5 0
Cone resistance SBTn Plot
Ic (Robertson 1990)
1 2 3 4
75 70
65 60
55 50
45 40
35 30
25 20
15 10
5 0
SBTn Plot CRR plot
CRR & CSR
0 0.2 0.4 0.6
75 70
65 60
55 50
45 40
35 30
25 20
15 10
5 0
CRR plot
During earthq.
qc1N,cs
0 20 40 60 80 100 120 140 160 180 200
Cyclic Stress Ratio* (CSR*)
0.8 0.7
0.6 0.5
0.4 0.3
0.2 0.1
0 Liquefaction
No Liquefaction
Normalized friction ratio (%)
0.1 1 10
Normalized CPT penetration resistance
1 10
100
1,000
Friction Ratio
Rf (%)
0 2 4 6 8 10
75 70
65 60
55 50
45 40
35 30
25 20
15 10
5 0
Friction Ratio
Mw=71/2, sigma'=1 atm base curve Summary of liquefaction potential FS Plot
Factor of safety
0 0.5 1 1.5 2
75 70
65 60
55 50
45 40
35 30
25 20
15 10
5 0
FS Plot
During earthq.
Zone A1: Cyclic liquefaction likely depending on size and duration of cyclic loading Zone A2: Cyclic liquefaction and strength loss likely depending on loading and ground geometry
Zone B: Liquefaction and post-earthquake strength loss unlikely, check cyclic softening Zone C: Cyclic liquefaction and strength loss possible depending on soil plasticity, brittleness/sensitivity, strain to peak undrained strength and ground geometry CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 1 902
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Norm. cone resistance
Qtn
0 50 100 150 200
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Norm. cone resistance
CPT basic interpretation plots (normalized)
Norm. friction ratio
Fr (%)
0 2 4 6 8 10
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Norm. friction ratio Nom. pore pressure ratio
Bq
-0.2 0 0.2 0.4 0.6 0.8 1
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Nom. pore pressure ratio SBTn Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
SBTn Plot Norm. Soil Behaviour Type
SBTn (Robertson 1990)
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Norm. Soil Behaviour Type
Sand & silty sandSilty sand & sandy silt Clay & silty clayClay Clay & silty clay Silty sand & sandy silt Clay & silty clay Sand & silty sand Silty sand & sandy silt Sand & silty sandClayClay & silty claySand & silty sand Clay & silty claySand & silty sand Silty sand & sandy silt Clay & silty clay Clay & silty clay Clay & silty clay CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 3Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq SBTn legend
1. Sensitive fine grained
2. Organic material3. Clay to silty clay
4. Clayey silt to silty5. Silty sand to sandy silt6. Clean sand to silty sand
7. Gravely sand to sand8. Very stiff sand to9. Very stiff fine grained Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6625.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
25.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
903
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Norm. cone resistance
qc1N
100 200 300
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Norm. cone resistance
Liquefaction analysis overall plots (intermediate results) SBTn Index
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
SBTn Index Apparent fines content
FC (%)
0 50 100 150 200
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Apparent fines content "Fines" adjustment
Delta qc1N
0 1 2 3 4 5 6 7 8 9 10
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
"Fines" adjustment Corrected norm. cone resistance
qc1N,cs
0 50 100 150 200
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Corrected norm. cone resistance
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 4Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6625.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
25.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
904
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 CRR plot
CRR & CSR
0 0.2 0.4 0.6
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
CRR plot
During earthq.
Liquefaction analysis overall plots
FS Plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
FS Plot
During earthq.
Liquefaction potential
LPI
0 5 10 15 20
Depth (ft)
64626058565452504846444240383634323028262422201816141210 8642
Liquefaction potential Vertical settlements
Settlement (in)
0 0.5 1 1.5 2
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Vertical settlements Lateral displacements
LDI
0 1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Lateral displacements
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 5Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6625.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
25.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
F.S. color scheme LPI color scheme
Almost certain it will liquefy
Very likely to liquefyLiquefaction and no liq. are equally likelyUnlike to liquefy Almost certain it will not liquefy
Very high riskHigh riskLow risk
905
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Normalized friction ratio (%)
0.1 1 10
Normalized CPT penetration resistance
1 10
100
1,000
Liquefaction analysis summary plots
qc1N,cs
0 20 40 60 80 100 120 140 160 180 200
Cyclic Stress Ratio*(CSR*)
0.80.70.60.50.40.30.20.1 0
Liquefaction
No Liquefaction
Thickness of surface layer, H1 (m)
0 1 2 3 4 5 6 7 8 9 10
Thickness of liquefiable sand layer, H2 (m)
12.011.010.0
9.08.07.06.05.04.03.02.01.00.0 C PT-02 (1.04)
Analysis PGA: 0.66
PGA
0.40g - 0.50g
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 6Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6625.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
25.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
906
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Norm. cone resistance
qc1N
100 200 300
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Norm. cone resistance
Check for strength loss plots (Idriss & Boulanger (2008)) Residual strength correction
Delta qc1N-Sr
0 1 2 3 4 5 6 7 8 9 10
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Residual strength correction Corrected norm. cone resistance qc1Ncs-Sr
0 50 100 150 200
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Corrected norm. cone resistance SBTn Index
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
SBTn Index Liquefied Su/Sig'v
Su/Sig'v
0 0.1 0.2 0.3 0.4 0.5
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Peak Su ratio Liq. Su ratio
Liquefied Su/Sig'v
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 7Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Input parameters and analysis dataAnalysis method:
Fines correction method:Points to test:Earthquake magnitude Mw:
Peak ground acceleration:Depth to water table (insitu):
B&I (2014)B&I (2014)Based on Ic value7.000.6625.00 ft
Depth to GWT (erthq.):
Average results interval:
Ic cut-off value:Unit weight calculation:Use fill:Fill height:
25.00 ft32.60Based on SBTNoN/A
Fill weight:Transition detect. applied:
Kσ applied:
Clay like behavior applied:Limit depth applied:Limit depth:
N/A
YesYesSands onlyNoN/A
907
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Cone resistance
qt (tsf)
100 200 300
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Cone resistance SBTn Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
SBTn Plot FS Plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
FS Plot
During earthq.
Vertical settlements
Settlement (in)
0 0.5 1 1.5 2
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Vertical settlements
Estimation of post-earthquake settlements
Strain plot
Volumentric strain (%)
0 1 2 3 4 5 6
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Strain plot
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 49Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq Abbreviationsqt:
Ic:
FS:
Volumentric strain:
Total cone resistance (cone resistance qc corrected for pore water effects) Soil Behaviour Type IndexCalculated Factor of Safety against liquefactionPost-liquefaction volumentric strain 908
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement of dry sands ::
Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
0.33 1.50 184.53 1.00 184.53 32 694 0.34 0.001 0.00 10.85 0.00 0.000
0.49 1.56 155.22 1.00 155.22 28 629 0.32 0.002 0.00 10.85 0.00 0.000
0.66 1.63 128.85 1.00 128.85 23 570 0.38 0.004 0.00 10.85 0.00 0.000
0.82 1.80 96.28 1.15 110.72 21 525 0.38 0.006 0.01 10.85 0.00 0.000
0.98 1.71 117.20 1.01 118.61 22 574 0.37 0.006 0.01 10.85 0.00 0.000
1.15 1.64 135.88 1.00 135.88 25 611 0.35 0.007 0.01 10.85 0.00 0.000
1.31 1.66 141.60 1.00 141.60 26 647 0.35 0.007 0.01 10.85 0.00 0.000
1.48 1.70 139.61 1.00 139.61 26 674 0.36 0.008 0.01 10.85 0.00 0.000
1.64 1.69 151.28 1.00 151.28 28 717 0.36 0.008 0.01 10.85 0.00 0.000
1.80 1.59 191.08 1.00 191.08 34 798 0.33 0.008 0.00 10.85 0.00 0.000
1.97 1.47 250.34 1.00 250.34 43 901 0.32 0.007 0.00 10.85 0.00 0.000
2.13 1.40 297.19 1.00 297.19 50 982 0.32 0.007 0.00 10.85 0.00 0.000
2.30 1.39 312.57 1.00 312.57 53 1020 0.32 0.007 0.00 10.85 0.00 0.000
2.46 1.45 303.57 1.00 303.57 52 1064 0.32 0.008 0.00 10.85 0.00 0.000
2.62 1.53 285.08 1.00 285.08 50 1113 0.32 0.008 0.00 10.85 0.00 0.000
2.79 1.63 258.81 1.00 258.81 47 1147 0.32 0.008 0.00 10.85 0.00 0.000
2.95 1.68 237.86 1.00 237.86 44 1125 0.32 0.009 0.00 10.85 0.00 0.000
3.12 1.68 232.38 1.00 232.38 43 1089 0.32 0.010 0.00 10.85 0.00 0.000
3.28 1.61 250.58 1.00 250.58 45 1078 0.32 0.011 0.00 10.85 0.00 0.000
3.45 1.52 292.19 1.00 292.19 51 1126 0.32 0.010 0.00 10.85 0.00 0.000
3.61 1.46 341.42 1.00 341.42 59 1214 0.32 0.010 0.00 10.85 0.00 0.000
3.77 1.42 377.09 1.00 377.09 64 1281 0.32 0.010 0.00 10.85 0.00 0.000
3.94 1.43 374.44 1.00 374.44 64 1285 0.32 0.010 0.00 10.85 0.00 0.000
4.10 1.47 339.97 1.00 339.97 59 1224 0.32 0.012 0.00 10.85 0.00 0.000
4.27 1.53 294.08 1.00 294.08 52 1137 0.32 0.014 0.00 10.85 0.00 0.000
4.43 1.57 250.40 1.00 250.40 45 1028 0.32 0.017 0.01 10.85 0.01 0.000
4.59 1.62 213.91 1.00 213.91 39 927 0.32 0.021 0.01 10.85 0.01 0.000
4.76 1.64 183.84 1.00 183.84 34 822 0.33 0.028 0.01 10.85 0.01 0.001
4.92 1.69 154.31 1.00 154.31 29 732 0.34 0.038 0.02 10.85 0.02 0.001
5.09 1.74 127.46 1.06 135.36 26 644 0.36 0.056 0.04 10.85 0.04 0.001
5.25 1.80 102.70 1.15 118.52 23 563 0.37 0.090 0.08 10.85 0.07 0.003
5.41 1.85 85.23 1.20 102.47 20 498 0.37 0.149 0.15 10.85 0.13 0.005
5.58 1.90 71.66 1.24 88.70 18 446 0.37 0.257 0.30 10.85 0.26 0.010
5.74 1.93 62.65 1.26 78.73 16 404 0.37 0.444 0.58 10.85 0.50 0.019
5.91 1.95 57.17 1.27 72.46 15 377 0.37 0.701 1.01 10.85 0.87 0.036
6.07 1.96 52.71 1.00 52.71 11 354 0.37 1.087 2.27 10.85 1.97 0.075
6.23 1.96 51.25 1.00 51.25 11 345 0.38 1.350 2.92 10.85 2.52 0.097
6.40 1.96 50.86 1.00 50.86 10 342 0.37 1.535 3.35 10.85 2.90 0.118
6.56 1.94 52.56 1.00 52.56 11 345 0.38 1.561 3.30 10.85 2.86 0.110
6.73 1.93 54.26 1.00 54.26 11 350 0.38 1.516 3.11 10.85 2.69 0.110
6.89 1.91 57.62 1.00 57.62 12 361 0.38 1.325 2.55 10.85 2.21 0.085
7.05 1.88 62.42 1.00 62.42 12 377 0.38 1.083 1.92 10.85 1.66 0.064
7.22 1.85 67.65 1.00 67.65 13 396 0.38 0.869 1.42 10.85 1.22 0.050
7.38 1.83 71.80 1.00 71.80 14 416 0.38 0.692 1.06 10.85 0.92 0.035
7.55 1.81 75.24 1.00 75.24 15 434 0.38 0.584 0.85 10.85 0.74 0.030
7.71 1.80 78.22 1.00 78.22 15 450 0.38 0.509 0.71 10.85 0.62 0.024
7.87 1.78 81.10 1.00 81.10 16 466 0.38 0.445 0.60 10.85 0.52 0.020
8.04 1.75 83.74 1.00 83.74 16 472 0.38 0.440 0.58 10.85 0.50 0.020 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 50 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 909
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement of dry sands :: (continued) Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
8.20 1.73 86.29 1.00 86.29 16 481 0.38 0.422 0.54 10.85 0.47 0.018
8.37 1.71 88.33 1.00 88.33 17 490 0.38 0.403 0.51 10.85 0.44 0.018
8.53 1.74 87.16 1.00 87.16 17 502 0.38 0.376 0.47 10.85 0.41 0.016
8.69 1.75 88.57 1.00 88.57 17 518 0.38 0.338 0.42 10.85 0.36 0.014
8.86 1.75 90.37 1.00 90.37 17 534 0.38 0.307 0.37 10.85 0.32 0.013
9.02 1.73 96.23 1.00 96.23 18 560 0.38 0.259 0.29 10.85 0.25 0.010
9.19 1.71 100.55 1.00 100.55 19 583 0.37 0.227 0.24 10.85 0.21 0.009
9.35 1.70 106.13 1.00 106.13 20 612 0.37 0.194 0.20 10.85 0.17 0.007
9.51 1.68 111.59 1.00 111.59 21 635 0.37 0.174 0.17 10.85 0.14 0.006
9.68 1.66 116.56 1.00 116.56 21 660 0.37 0.156 0.14 10.85 0.12 0.005
9.84 1.66 119.92 1.00 119.92 22 679 0.36 0.145 0.13 10.85 0.11 0.004
10.01 1.67 120.71 1.00 120.71 22 697 0.36 0.137 0.12 10.85 0.10 0.004
10.17 1.68 118.99 1.00 118.99 22 703 0.37 0.138 0.12 10.85 0.11 0.004
10.34 1.70 115.42 1.00 115.42 22 700 0.37 0.144 0.13 10.85 0.11 0.005
10.50 1.71 112.68 1.00 112.83 21 695 0.37 0.152 0.14 10.85 0.12 0.005
10.66 1.71 111.71 1.00 111.77 21 694 0.37 0.158 0.15 10.85 0.13 0.005
10.83 1.70 112.42 1.00 112.42 21 699 0.37 0.159 0.15 10.85 0.13 0.005
10.99 1.69 114.08 1.00 114.08 21 706 0.37 0.158 0.15 10.85 0.13 0.005
11.16 1.67 115.28 1.00 115.28 21 708 0.37 0.161 0.15 10.85 0.13 0.005
11.32 1.66 116.08 1.00 116.08 21 707 0.37 0.166 0.15 10.85 0.13 0.005
11.48 1.64 116.44 1.00 116.44 21 698 0.37 0.179 0.17 10.85 0.14 0.006
11.65 1.63 117.48 1.00 117.48 21 700 0.37 0.183 0.17 10.85 0.15 0.006
11.81 1.62 120.09 1.00 120.09 22 715 0.37 0.174 0.16 10.85 0.14 0.005
11.98 1.62 124.49 1.00 124.49 23 750 0.37 0.150 0.13 10.85 0.11 0.005
12.14 1.63 131.80 1.00 131.80 24 800 0.36 0.124 0.10 10.85 0.09 0.003
12.30 1.62 141.37 1.00 141.37 26 858 0.36 0.103 0.08 10.85 0.07 0.003
12.47 1.62 153.26 1.00 153.26 28 942 0.35 0.081 0.05 10.85 0.05 0.002
12.63 1.61 164.38 1.00 164.38 30 1003 0.34 0.070 0.04 10.85 0.04 0.001
12.80 1.61 174.83 1.00 174.83 32 1067 0.33 0.062 0.04 10.85 0.03 0.001
12.96 1.62 175.75 1.00 175.75 32 1100 0.33 0.059 0.03 10.85 0.03 0.001
13.12 1.62 186.61 1.00 186.61 34 1171 0.34 0.052 0.03 10.85 0.02 0.001
13.29 1.61 197.45 1.00 197.45 36 1237 0.31 0.047 0.02 10.85 0.02 0.001
13.45 1.58 215.46 1.00 215.46 39 1306 0.31 0.043 0.02 10.85 0.02 0.001
13.62 1.57 221.03 1.00 221.03 40 1343 0.31 0.042 0.02 10.85 0.02 0.001
13.78 1.57 223.91 1.00 223.91 40 1369 0.31 0.041 0.02 10.85 0.02 0.001
13.94 1.58 226.06 1.00 226.06 40 1392 0.31 0.040 0.02 10.85 0.01 0.001
14.11 1.58 226.64 1.00 226.64 41 1411 0.32 0.040 0.02 10.85 0.01 0.001
14.27 1.59 222.40 1.00 222.40 40 1414 0.32 0.040 0.02 10.85 0.02 0.001
14.44 1.62 209.68 1.00 209.68 38 1381 0.32 0.043 0.02 10.85 0.02 0.001
14.60 1.65 191.12 1.00 191.12 35 1320 0.32 0.048 0.02 10.85 0.02 0.001
14.76 1.69 170.14 1.00 170.14 32 1239 0.34 0.055 0.03 10.85 0.03 0.001
14.93 1.73 149.28 1.06 157.72 30 1151 0.36 0.066 0.04 10.85 0.04 0.001
15.09 1.77 132.58 1.12 148.24 28 1077 0.37 0.079 0.05 10.85 0.04 0.002
15.26 1.80 120.11 1.15 138.31 27 1014 0.37 0.094 0.07 10.85 0.06 0.002
15.42 1.81 114.60 1.17 133.76 26 991 0.38 0.102 0.07 10.85 0.06 0.002
15.58 1.82 113.43 1.18 133.29 26 996 0.38 0.102 0.07 10.85 0.06 0.002
15.75 1.83 115.79 1.18 137.01 27 1034 0.37 0.094 0.07 10.85 0.06 0.002
15.91 1.83 119.98 1.18 141.89 28 1077 0.37 0.086 0.06 10.85 0.05 0.002 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 51 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 910
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement of dry sands :: (continued) Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
16.08 1.83 123.29 1.18 145.77 28 1114 0.37 0.080 0.05 10.85 0.05 0.002
16.24 1.84 125.95 1.19 149.78 29 1156 0.37 0.074 0.05 10.85 0.04 0.002
16.40 1.86 126.18 1.21 152.52 30 1200 0.36 0.069 0.04 10.85 0.04 0.001
16.57 1.88 125.33 1.23 153.74 0 0 0.36 0.000 0.00 0.00 0.00 0.000
16.73 1.98 124.96 1.29 161.77 0 0 0.35 0.000 0.00 0.00 0.00 0.000
16.90 2.07 121.84 1.38 168.63 0 0 0.33 0.000 0.00 0.00 0.00 0.000
17.06 2.21 109.82 1.64 180.48 0 0 0.33 0.000 0.00 0.00 0.00 0.000
17.23 2.34 90.21 2.10 189.73 0 0 0.35 0.000 0.00 0.00 0.00 0.000
17.39 2.43 77.66 2.56 199.16 0 0 0.37 0.000 0.00 0.00 0.00 0.000
17.55 2.44 73.65 2.61 192.56 48 1526 0.36 0.046 0.02 10.85 0.01 0.001
17.72 2.40 74.68 2.37 176.95 44 1477 0.36 0.050 0.02 10.85 0.02 0.001
17.88 2.40 70.46 2.37 167.22 41 1405 0.37 0.056 0.02 10.85 0.02 0.001
18.05 2.42 65.14 2.47 160.66 40 1339 0.37 0.063 0.03 10.85 0.02 0.001
18.21 2.44 60.72 2.59 157.12 39 1293 0.37 0.069 0.03 10.85 0.03 0.001
18.37 2.45 57.32 2.68 153.49 39 1254 0.38 0.075 0.03 10.85 0.03 0.001
18.54 2.48 52.54 2.87 150.98 39 1205 0.38 0.083 0.04 10.85 0.03 0.001
18.70 2.52 47.29 3.12 147.39 38 1144 0.38 0.096 0.04 10.85 0.04 0.001
18.87 2.57 41.90 3.46 145.18 39 1084 0.38 0.113 0.05 10.85 0.04 0.002
19.03 2.59 39.22 3.65 143.11 38 1052 0.38 0.124 0.06 10.85 0.05 0.002
19.19 2.61 37.27 3.81 142.10 0 0 0.39 0.000 0.00 0.00 0.00 0.000
19.36 2.62 35.59 3.96 140.82 0 0 0.39 0.000 0.00 0.00 0.00 0.000
19.52 2.64 33.81 4.09 138.40 0 0 0.39 0.000 0.00 0.00 0.00 0.000
19.69 2.65 32.28 4.20 135.60 0 0 0.39 0.000 0.00 0.00 0.00 0.000
19.85 2.67 30.64 4.37 133.98 0 0 0.39 0.000 0.00 0.00 0.00 0.000
20.01 2.69 29.10 4.57 133.07 0 0 0.39 0.000 0.00 0.00 0.00 0.000
20.18 2.72 27.62 4.87 134.55 0 0 0.39 0.000 0.00 0.00 0.00 0.000
20.34 2.74 26.90 5.09 136.90 0 0 0.39 0.000 0.00 0.00 0.00 0.000
20.51 2.75 26.51 5.27 139.79 0 0 0.39 0.000 0.00 0.00 0.00 0.000
20.67 2.77 26.18 5.48 143.40 0 0 0.39 0.000 0.00 0.00 0.00 0.000
20.83 2.79 25.61 5.71 146.38 0 0 0.39 0.000 0.00 0.00 0.00 0.000
21.00 2.81 24.96 5.94 148.40 0 0 0.39 0.000 0.00 0.00 0.00 0.000
21.16 2.82 24.34 6.12 148.89 0 0 0.39 0.000 0.00 0.00 0.00 0.000
21.33 2.84 23.69 6.31 149.42 0 0 0.39 0.000 0.00 0.00 0.00 0.000
21.49 2.85 23.22 6.46 150.01 0 0 0.39 0.000 0.00 0.00 0.00 0.000
21.65 2.86 22.82 6.59 150.34 0 0 0.39 0.000 0.00 0.00 0.00 0.000
21.82 2.87 22.14 6.84 151.36 0 0 0.39 0.000 0.00 0.00 0.00 0.000
21.98 2.90 21.21 7.22 153.07 0 0 0.39 0.000 0.00 0.00 0.00 0.000
22.15 2.92 20.43 7.54 154.12 0 0 0.39 0.000 0.00 0.00 0.00 0.000
22.31 2.94 19.95 7.74 154.38 0 0 0.39 0.000 0.00 0.00 0.00 0.000
22.47 2.94 19.61 7.86 154.15 0 0 0.39 0.000 0.00 0.00 0.00 0.000
22.64 2.96 19.24 8.05 154.85 0 0 0.39 0.000 0.00 0.00 0.00 0.000
22.80 2.95 19.24 8.01 154.09 0 0 0.39 0.000 0.00 0.00 0.00 0.000
22.97 2.95 19.56 7.89 154.29 0 0 0.39 0.000 0.00 0.00 0.00 0.000
23.13 2.94 20.01 7.79 155.79 0 0 0.39 0.000 0.00 0.00 0.00 0.000
23.30 2.94 20.38 7.73 157.64 0 0 0.39 0.000 0.00 0.00 0.00 0.000
23.46 2.92 21.28 7.58 161.23 0 0 0.39 0.000 0.00 0.00 0.00 0.000
23.62 2.90 22.80 7.26 165.64 0 0 0.39 0.000 0.00 0.00 0.00 0.000
23.79 2.89 24.44 7.06 172.62 0 0 0.39 0.000 0.00 0.00 0.00 0.000 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 52 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 911
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement of dry sands :: (continued) Depth
(ft)
Ic K Qtn c Qtn,cs N1,60
(blows)
Gmax
(tsf)
CSR Shear, γ
(%)
evol(15)
(%)
Nc ev
(%)
Settle.
(in)
23.95 2.81 29.13 6.01 174.92 0 0 0.39 0.000 0.00 0.00 0.00 0.000
24.12 2.66 39.71 4.26 168.98 0 0 0.38 0.000 0.00 0.00 0.00 0.000
24.28 2.48 53.62 2.83 151.54 0 0 0.37 0.000 0.00 0.00 0.00 0.000
24.44 2.32 65.14 2.01 130.64 0 0 0.37 0.000 0.00 0.00 0.00 0.000
24.61 2.21 70.95 1.64 116.41 0 0 0.37 0.000 0.00 0.00 0.00 0.000
24.77 2.17 75.33 1.55 117.00 26 1451 0.37 0.082 0.06 10.85 0.05 0.002
24.94 2.18 80.55 1.56 125.96 28 1571 0.37 0.070 0.05 10.85 0.04 0.002 Total estimated settlement: 1.15
Abbreviations
Qtn:
Kc:
Qtn,cs:
Gmax:
CSR:
γ:
evol(15):
Nc:
ev:
Settle.:
Normalized cone resistance
Fines correction factor
Equivalent clean sand normalized cone resistance
Small strain shear modulus
Soil cyclic stress ratio
Cyclic shear strain
Volumetric strain after 15 cycles
Equivalent number of cycles
Volumetric strain
Calculated settlement
:: Post-earthquake settlement due to soil liquefaction ::
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
25.10 165.11 1.20 0.54 0.01 1.00 25.26 161.67 1.07 0.72 0.01 1.00
25.43 165.67 1.21 0.52 0.01 1.00 25.59 141.08 0.64 2.22 0.04 1.00
25.76 128.44 2.00 0.00 0.00 1.00 25.92 135.94 2.00 0.00 0.00 1.00
26.08 136.47 2.00 0.00 0.00 1.00 26.25 123.00 2.00 0.00 0.00 1.00
26.41 46.68 2.00 0.00 0.00 1.00 26.58 42.78 2.00 0.00 0.00 1.00
26.74 29.34 2.00 0.00 0.00 1.00 26.90 24.85 2.00 0.00 0.00 1.00
27.07 19.29 2.00 0.00 0.00 1.00 27.23 17.78 2.00 0.00 0.00 1.00
27.40 17.74 2.00 0.00 0.00 1.00 27.56 15.16 2.00 0.00 0.00 1.00
27.72 19.47 2.00 0.00 0.00 1.00 27.89 26.34 2.00 0.00 0.00 1.00
28.05 106.07 2.00 0.00 0.00 1.00 28.22 136.58 2.00 0.00 0.00 1.00
28.38 116.48 2.00 0.00 0.00 1.00 28.54 119.62 0.43 2.66 0.05 1.00
28.71 121.10 0.43 2.63 0.05 1.00 28.87 126.58 0.47 2.51 0.05 1.00
29.04 137.98 0.57 2.28 0.05 1.00 29.20 142.88 0.63 2.19 0.04 1.00
29.36 144.30 0.64 2.17 0.04 1.00 29.53 147.08 0.68 2.12 0.04 1.00
29.69 154.65 0.82 1.33 0.03 1.00 29.86 161.41 0.99 0.85 0.02 1.00
30.02 173.69 1.49 0.27 0.01 1.00 30.19 176.26 1.63 0.17 0.00 1.00
30.35 174.34 1.52 0.25 0.00 1.00 30.51 177.95 2.00 0.00 0.00 1.00
30.68 179.25 2.00 0.00 0.00 1.00 30.84 163.64 2.00 0.00 0.00 1.00
31.01 117.90 2.00 0.00 0.00 1.00 31.17 36.82 2.00 0.00 0.00 1.00
31.33 31.05 2.00 0.00 0.00 1.00 31.50 27.16 2.00 0.00 0.00 1.00
31.66 33.57 2.00 0.00 0.00 1.00 31.83 110.69 2.00 0.00 0.00 1.00
31.99 114.95 2.00 0.00 0.00 1.00 32.15 115.22 2.00 0.00 0.00 1.00
32.32 120.03 2.00 0.00 0.00 1.00 32.48 129.28 2.00 0.00 0.00 1.00
32.65 150.84 2.00 0.00 0.00 1.00 32.81 162.33 2.00 0.00 0.00 1.00
32.97 161.97 2.00 0.00 0.00 1.00 33.14 141.29 2.00 0.00 0.00 1.00
33.30 121.93 2.00 0.00 0.00 1.00 33.47 42.20 2.00 0.00 0.00 1.00
33.63 33.58 2.00 0.00 0.00 1.00 33.79 32.48 2.00 0.00 0.00 1.00
33.96 32.96 2.00 0.00 0.00 1.00 34.12 32.22 2.00 0.00 0.00 1.00 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 53 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 912
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement due to soil liquefaction :: (continued) Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
34.29 30.72 2.00 0.00 0.00 1.00 34.45 29.46 2.00 0.00 0.00 1.00
34.61 29.43 2.00 0.00 0.00 1.00 34.78 26.69 2.00 0.00 0.00 1.00
34.94 25.69 2.00 0.00 0.00 1.00 35.11 24.24 2.00 0.00 0.00 1.00
35.27 25.32 2.00 0.00 0.00 1.00 35.43 25.72 2.00 0.00 0.00 1.00
35.60 27.02 2.00 0.00 0.00 1.00 35.76 27.79 2.00 0.00 0.00 1.00
35.93 28.94 2.00 0.00 0.00 1.00 36.09 29.20 2.00 0.00 0.00 1.00
36.26 26.86 2.00 0.00 0.00 1.00 36.42 24.55 2.00 0.00 0.00 1.00
36.58 23.42 2.00 0.00 0.00 1.00 36.75 21.78 2.00 0.00 0.00 1.00
36.91 20.59 2.00 0.00 0.00 1.00 37.08 19.34 2.00 0.00 0.00 1.00
37.24 18.67 2.00 0.00 0.00 1.00 37.40 18.28 2.00 0.00 0.00 1.00
37.57 17.69 2.00 0.00 0.00 1.00 37.73 16.88 2.00 0.00 0.00 1.00
37.90 17.00 2.00 0.00 0.00 1.00 38.06 18.75 2.00 0.00 0.00 1.00
38.22 21.36 2.00 0.00 0.00 1.00 38.39 25.06 2.00 0.00 0.00 1.00
38.55 27.71 2.00 0.00 0.00 1.00 38.72 27.02 2.00 0.00 0.00 1.00
38.88 27.93 2.00 0.00 0.00 1.00 39.04 32.29 2.00 0.00 0.00 1.00
39.21 33.63 2.00 0.00 0.00 1.00 39.37 31.61 2.00 0.00 0.00 1.00
39.54 26.76 2.00 0.00 0.00 1.00 39.70 28.47 2.00 0.00 0.00 1.00
39.86 28.93 2.00 0.00 0.00 1.00 40.03 26.07 2.00 0.00 0.00 1.00
40.19 22.68 2.00 0.00 0.00 1.00 40.36 17.80 2.00 0.00 0.00 1.00
40.52 14.87 2.00 0.00 0.00 1.00 40.68 19.35 2.00 0.00 0.00 1.00
40.85 22.62 2.00 0.00 0.00 1.00 41.01 20.97 2.00 0.00 0.00 1.00
41.18 19.68 2.00 0.00 0.00 1.00 41.34 18.34 2.00 0.00 0.00 1.00
41.50 17.76 2.00 0.00 0.00 1.00 41.67 16.36 2.00 0.00 0.00 1.00
41.83 15.45 2.00 0.00 0.00 1.00 42.00 15.91 2.00 0.00 0.00 1.00
42.16 15.68 2.00 0.00 0.00 1.00 42.32 16.00 2.00 0.00 0.00 1.00
42.49 16.59 2.00 0.00 0.00 1.00 42.65 16.30 2.00 0.00 0.00 1.00
42.82 16.07 2.00 0.00 0.00 1.00 42.98 16.53 2.00 0.00 0.00 1.00
43.15 17.12 2.00 0.00 0.00 1.00 43.31 17.57 2.00 0.00 0.00 1.00
43.47 18.09 2.00 0.00 0.00 1.00 43.64 18.95 2.00 0.00 0.00 1.00
43.80 19.68 2.00 0.00 0.00 1.00 43.97 18.36 2.00 0.00 0.00 1.00
44.13 17.25 2.00 0.00 0.00 1.00 44.29 17.57 2.00 0.00 0.00 1.00
44.46 19.10 2.00 0.00 0.00 1.00 44.62 18.67 2.00 0.00 0.00 1.00
44.79 18.37 2.00 0.00 0.00 1.00 44.95 18.08 2.00 0.00 0.00 1.00
45.28 17.70 2.00 0.00 0.00 1.00 45.44 17.41 2.00 0.00 0.00 1.00
45.61 16.78 2.00 0.00 0.00 1.00 45.77 16.16 2.00 0.00 0.00 1.00
45.93 16.47 2.00 0.00 0.00 1.00 46.10 15.72 2.00 0.00 0.00 1.00
46.26 15.57 2.00 0.00 0.00 1.00 46.43 15.81 2.00 0.00 0.00 1.00
46.59 16.39 2.00 0.00 0.00 1.00 46.75 17.16 2.00 0.00 0.00 1.00
46.92 16.81 2.00 0.00 0.00 1.00 47.08 16.26 2.00 0.00 0.00 1.00
47.25 15.78 2.00 0.00 0.00 1.00 47.41 15.43 2.00 0.00 0.00 1.00
47.57 15.02 2.00 0.00 0.00 1.00 47.74 14.93 2.00 0.00 0.00 1.00
47.90 16.22 2.00 0.00 0.00 1.00 48.07 15.81 2.00 0.00 0.00 1.00
48.23 15.27 2.00 0.00 0.00 1.00 48.39 15.77 2.00 0.00 0.00 1.00
48.56 15.55 2.00 0.00 0.00 1.00 48.72 14.89 2.00 0.00 0.00 1.00
48.89 14.29 2.00 0.00 0.00 1.00 49.05 14.27 2.00 0.00 0.00 1.00
49.22 14.57 2.00 0.00 0.00 1.00 49.38 14.81 2.00 0.00 0.00 1.00
49.54 14.48 2.00 0.00 0.00 1.00 49.71 14.14 2.00 0.00 0.00 1.00
49.87 13.80 2.00 0.00 0.00 1.00 50.04 14.42 2.00 0.00 0.00 1.00 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 54 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 913
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement due to soil liquefaction :: (continued) Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
50.20 16.02 2.00 0.00 0.00 1.00 50.36 15.67 2.00 0.00 0.00 1.00
50.53 14.88 2.00 0.00 0.00 1.00 50.69 13.91 2.00 0.00 0.00 1.00
50.86 13.51 2.00 0.00 0.00 1.00 51.02 14.13 2.00 0.00 0.00 1.00
51.18 14.50 2.00 0.00 0.00 1.00 51.35 13.40 2.00 0.00 0.00 1.00
51.51 13.45 2.00 0.00 0.00 1.00 51.68 13.68 2.00 0.00 0.00 1.00
51.84 13.48 2.00 0.00 0.00 1.00 52.00 13.84 2.00 0.00 0.00 1.00
52.17 14.46 2.00 0.00 0.00 1.00 52.33 13.81 2.00 0.00 0.00 1.00
52.50 13.92 2.00 0.00 0.00 1.00 52.66 13.72 2.00 0.00 0.00 1.00
52.82 13.64 2.00 0.00 0.00 1.00 52.99 14.19 2.00 0.00 0.00 1.00
53.15 15.00 2.00 0.00 0.00 1.00 53.32 15.17 2.00 0.00 0.00 1.00
53.48 14.71 2.00 0.00 0.00 1.00 53.64 14.44 2.00 0.00 0.00 1.00
53.81 14.87 2.00 0.00 0.00 1.00 53.97 15.67 2.00 0.00 0.00 1.00
54.14 16.16 2.00 0.00 0.00 1.00 54.30 17.15 2.00 0.00 0.00 1.00
54.46 17.01 2.00 0.00 0.00 1.00 54.63 16.67 2.00 0.00 0.00 1.00
54.79 16.90 2.00 0.00 0.00 1.00 54.96 17.51 2.00 0.00 0.00 1.00
55.12 17.49 2.00 0.00 0.00 1.00 55.28 18.36 2.00 0.00 0.00 1.00
55.45 19.04 2.00 0.00 0.00 1.00 55.61 19.40 2.00 0.00 0.00 1.00
55.78 19.38 2.00 0.00 0.00 1.00 55.94 20.25 2.00 0.00 0.00 1.00
56.11 19.65 2.00 0.00 0.00 1.00 56.27 19.56 2.00 0.00 0.00 1.00
56.43 19.22 2.00 0.00 0.00 1.00 56.60 19.96 2.00 0.00 0.00 1.00
56.76 20.32 2.00 0.00 0.00 1.00 56.93 19.15 2.00 0.00 0.00 1.00
57.09 17.56 2.00 0.00 0.00 1.00 57.25 16.72 2.00 0.00 0.00 1.00
57.42 15.96 2.00 0.00 0.00 1.00 57.58 15.58 2.00 0.00 0.00 1.00
57.75 16.12 2.00 0.00 0.00 1.00 57.91 15.74 2.00 0.00 0.00 1.00
58.07 15.29 2.00 0.00 0.00 1.00 58.24 14.84 2.00 0.00 0.00 1.00
58.40 15.06 2.00 0.00 0.00 1.00 58.57 14.86 2.00 0.00 0.00 1.00
58.73 14.73 2.00 0.00 0.00 1.00 58.89 14.47 2.00 0.00 0.00 1.00
59.06 14.70 2.00 0.00 0.00 1.00 59.22 14.32 2.00 0.00 0.00 1.00
59.39 14.55 2.00 0.00 0.00 1.00 59.55 14.97 2.00 0.00 0.00 1.00
59.71 14.35 2.00 0.00 0.00 1.00 59.88 14.15 2.00 0.00 0.00 1.00
60.04 13.89 2.00 0.00 0.00 1.00 60.21 17.22 2.00 0.00 0.00 1.00
60.37 24.79 2.00 0.00 0.00 1.00 60.53 24.12 2.00 0.00 0.00 1.00
60.70 21.31 2.00 0.00 0.00 1.00 60.86 34.20 2.00 0.00 0.00 1.00
61.03 42.46 2.00 0.00 0.00 1.00 61.19 33.90 2.00 0.00 0.00 1.00
61.35 34.62 2.00 0.00 0.00 1.00 61.52 28.16 2.00 0.00 0.00 1.00
61.68 24.55 2.00 0.00 0.00 1.00 61.85 21.76 2.00 0.00 0.00 1.00
62.01 18.10 2.00 0.00 0.00 1.00 62.17 16.20 2.00 0.00 0.00 1.00
62.34 15.75 2.00 0.00 0.00 1.00 62.50 25.88 2.00 0.00 0.00 1.00
62.67 39.13 2.00 0.00 0.00 1.00 62.83 33.36 2.00 0.00 0.00 1.00
63.00 27.69 2.00 0.00 0.00 1.00 63.16 22.06 2.00 0.00 0.00 1.00
63.32 31.45 2.00 0.00 0.00 1.00 63.49 38.18 2.00 0.00 0.00 1.00
63.65 28.24 2.00 0.00 0.00 1.00 63.82 21.77 2.00 0.00 0.00 1.00
63.98 21.75 2.00 0.00 0.00 1.00 64.14 19.76 2.00 0.00 0.00 1.00
64.31 21.33 2.00 0.00 0.00 1.00 64.47 27.93 2.00 0.00 0.00 1.00
64.64 28.66 2.00 0.00 0.00 1.00 64.80 40.13 2.00 0.00 0.00 1.00
64.96 34.17 2.00 0.00 0.00 1.00 65.13 41.46 2.00 0.00 0.00 1.00
65.29 42.71 2.00 0.00 0.00 1.00 65.46 48.51 2.00 0.00 0.00 1.00
65.62 64.17 2.00 0.00 0.00 1.00 65.78 55.59 2.00 0.00 0.00 1.00 CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 55 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 914
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Post-earthquake settlement due to soil liquefaction :: (continued) Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
Depth
(ft)
qc1N,cs FS ev (%) Settlement
(in)
DF DF
65.95 164.10 2.00 0.00 0.00 1.00 66.11 223.79 2.00 0.00 0.00 1.00
66.28 239.37 2.00 0.00 0.00 1.00 66.44 180.20 2.00 0.00 0.00 1.00
66.60 85.14 2.00 0.00 0.00 1.00 66.77 55.60 2.00 0.00 0.00 1.00
66.93 41.34 2.00 0.00 0.00 1.00 67.10 129.44 2.00 0.00 0.00 1.00
67.26 184.54 2.00 0.00 0.00 1.00 67.42 159.47 2.00 0.00 0.00 1.00
67.59 159.84 2.00 0.00 0.00 1.00 67.75 171.65 1.18 0.55 0.01 1.00
67.92 161.53 0.86 1.14 0.02 1.00 68.08 166.19 0.98 0.83 0.02 1.00
68.24 176.95 1.42 0.31 0.01 1.00 68.41 166.00 0.98 0.84 0.02 1.00
68.57 148.49 0.61 2.10 0.04 1.00 68.74 133.89 0.46 2.36 0.05 1.00
68.90 131.97 2.00 0.00 0.00 1.00 69.07 164.78 2.00 0.00 0.00 1.00
69.23 190.45 2.00 0.00 0.00 1.00 69.39 183.42 2.00 0.00 0.00 1.00
69.56 185.80 2.00 0.00 0.00 1.00 69.72 167.77 2.00 0.00 0.00 1.00
69.89 64.27 2.00 0.00 0.00 1.00 70.05 71.41 2.00 0.00 0.00 1.00
70.21 161.75 2.00 0.00 0.00 1.00 70.38 187.58 2.00 0.00 0.00 1.00
70.54 155.04 2.00 0.00 0.00 1.00 70.71 246.48 2.00 0.00 0.00 1.00
70.87 219.09 2.00 0.00 0.00 1.00 71.03 200.82 2.00 0.00 0.00 1.00
71.20 190.57 2.00 0.00 0.00 1.00 71.36 181.97 1.74 0.12 0.00 1.00
71.53 185.88 2.00 0.00 0.00 1.00 71.69 193.50 2.00 0.00 0.00 1.00
71.85 211.42 2.00 0.00 0.00 1.00 72.02 217.60 2.00 0.00 0.00 1.00
72.18 229.64 2.00 0.00 0.00 1.00 72.35 230.01 2.00 0.00 0.00 1.00
72.51 228.18 2.00 0.00 0.00 1.00 72.67 207.03 2.00 0.00 0.00 1.00
72.84 187.76 2.00 0.00 0.00 1.00 73.00 166.25 2.00 0.00 0.00 1.00
73.17 154.41 2.00 0.00 0.00 1.00 73.33 163.13 2.00 0.00 0.00 1.00
73.49 168.33 2.00 0.00 0.00 1.00 73.66 172.72 2.00 0.00 0.00 1.00
73.82 177.53 2.00 0.00 0.00 1.00 73.99 196.10 2.00 0.00 0.00 1.00
74.15 174.89 2.00 0.00 0.00 1.00 74.31 161.74 2.00 0.00 0.00 1.00
74.48 177.15 2.00 0.00 0.00 1.00 74.64 138.59 0.51 2.27 0.04 1.00
74.81 138.21 0.50 2.28 0.05 1.00 74.97 191.27 2.00 0.00 0.00 1.00
75.13 167.09 1.02 0.78 0.01 1.00 75.30 56.85 2.00 0.00 0.00 1.00
75.46 54.58 2.00 0.00 0.00 1.00 75.63 84.94 2.00 0.00 0.00 1.00
75.79 82.57 2.00 0.00 0.00 1.00 75.96 41.04 2.00 0.00 0.00 1.00
76.12 26.81 2.00 0.00 0.00 1.00 76.28 141.65 0.54 2.21 0.04 1.00
76.45 172.54 1.22 0.50 0.01 1.00 76.61 183.08 1.82 0.08 0.00 1.00
76.78 155.79 0.74 1.61 0.03 1.00 76.94 119.42 0.38 2.67 0.05 1.00
77.10 148.88 0.63 2.09 0.04 1.00 77.27 160.29 0.83 1.21 0.02 1.00
77.43 178.20 2.00 0.00 0.00 1.00 77.60 193.20 2.00 0.00 0.00 1.00
77.76 169.30 2.00 0.00 0.00 1.00 77.92 61.24 2.00 0.00 0.00 1.00
78.09 54.07 2.00 0.00 0.00 1.00 78.25 36.58 2.00 0.00 0.00 1.00
78.42 59.99 2.00 0.00 0.00 1.00 78.58 65.68 2.00 0.00 0.00 1.00
78.74 100.36 2.00 0.00 0.00 1.00 78.91 207.33 2.00 0.00 0.00 1.00
79.07 209.59 2.00 0.00 0.00 1.00 79.24 255.22 2.00 0.00 0.00 1.00 Total estimated settlement: 0.93
Abbreviations
Qtn,cs:
FS:
ev (%):
DF:
Settlement:
Equivalent clean sand normalized cone resistance
Factor of safety against liquefaction
Post-liquefaction volumentric strain
ev depth weighting factor
Calculated settlement
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 56 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 915
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Cone resistance
qt (tsf)
100 200 300
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 86420
Cone resistance SBTn Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 86420
SBTn Plot Corrected norm. cone resista
qc1N,cs
0 50 100 150 200
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 86420
Corrected norm. cone resista FS Plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 86420
FS Plot
During earthq.
Cyclic shear strain
Gamma max (%)
0 10 20 30 40 50 60
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 86420
Cyclic shear strain Lateral displacements
LDI
0 2 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 86420
Lateral displacements
Estimation of post-earthquake lateral Displacements
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 57Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq qt: Total cone resistance (cone resistance qc corrected for pore water effects) Ic: Soil Behaviour Type Index
qc1N,cs: Equivalent clean sand normalized CPT total cone resistance F.S.: Factor of safetyγmax: Maximum cyclic shear strain LDI: Lateral displacement index
Abbreviations
916
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Lateral displacement index calculation ::
Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
25.10 165.11 0.06 1.20 0.05 0.02 0.04
25.26 161.67 0.07 1.07 0.09 0.03 0.06
25.43 165.67 0.06 1.21 0.04 0.02 0.05
25.59 141.08 0.12 0.64 0.36 0.11 0.21
25.76 128.44 0.16 2.00 0.51 0.00 0.00
25.92 135.94 0.13 2.00 0.42 0.00 0.00
26.08 136.47 0.13 2.00 0.42 0.00 0.00
26.25 123.00 0.18 2.00 0.57 0.00 0.00
26.41 46.68 0.00 2.00 0.00 0.00 0.00
26.58 42.78 0.00 2.00 0.00 0.00 0.00
26.74 29.34 0.00 2.00 0.00 0.00 0.00
26.90 24.85 0.00 2.00 0.00 0.00 0.00
27.07 19.29 0.00 2.00 0.00 0.00 0.00
27.23 17.78 0.00 2.00 0.00 0.00 0.00
27.40 17.74 0.00 2.00 0.00 0.00 0.00
27.56 15.16 0.00 2.00 0.00 0.00 0.00
27.72 19.47 0.00 2.00 0.00 0.00 0.00
27.89 26.34 0.00 2.00 0.00 0.00 0.00
28.05 106.07 0.27 2.00 0.74 0.00 0.00
28.22 136.58 0.13 2.00 0.42 0.00 0.00
28.38 116.48 0.21 2.00 0.64 0.00 0.00
28.54 119.62 0.20 0.43 0.61 0.20 0.38
28.71 121.10 0.19 0.43 0.59 0.19 0.39
28.87 126.58 0.17 0.47 0.53 0.17 0.32
29.04 137.98 0.13 0.57 0.40 0.13 0.26
29.20 142.88 0.11 0.63 0.34 0.11 0.21
29.36 144.30 0.11 0.64 0.32 0.10 0.19
29.53 147.08 0.10 0.68 0.29 0.08 0.17
29.69 154.65 0.08 0.82 0.19 0.05 0.10
29.86 161.41 0.07 0.99 0.10 0.04 0.07
30.02 173.69 0.05 1.49 -0.07 0.01 0.02
30.19 176.26 0.05 1.63 -0.11 0.01 0.02
30.35 174.34 0.05 1.52 -0.08 0.01 0.02
30.51 177.95 0.04 2.00 -0.13 0.00 0.00
30.68 179.25 0.04 2.00 -0.15 0.00 0.00
30.84 163.64 0.06 2.00 0.07 0.00 0.00
31.01 117.90 0.20 2.00 0.63 0.00 0.00
31.17 36.82 0.00 2.00 0.00 0.00 0.00
31.33 31.05 0.00 2.00 0.00 0.00 0.00
31.50 27.16 0.00 2.00 0.00 0.00 0.00
31.66 33.57 0.00 2.00 0.00 0.00 0.00
31.83 110.69 0.24 2.00 0.70 0.00 0.00
31.99 114.95 0.22 2.00 0.66 0.00 0.00
32.15 115.22 0.22 2.00 0.65 0.00 0.00
32.32 120.03 0.19 2.00 0.60 0.00 0.00
32.48 129.28 0.16 2.00 0.50 0.00 0.00
32.65 150.84 0.09 2.00 0.24 0.00 0.00
32.81 162.33 0.07 2.00 0.08 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 58 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 917
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
32.97 161.97 0.07 2.00 0.09 0.00 0.00
33.14 141.29 0.12 2.00 0.36 0.00 0.00
33.30 121.93 0.19 2.00 0.58 0.00 0.00
33.47 42.20 0.00 2.00 0.00 0.00 0.00
33.63 33.58 0.00 2.00 0.00 0.00 0.00
33.79 32.48 0.00 2.00 0.00 0.00 0.00
33.96 32.96 0.00 2.00 0.00 0.00 0.00
34.12 32.22 0.00 2.00 0.00 0.00 0.00
34.29 30.72 0.00 2.00 0.00 0.00 0.00
34.45 29.46 0.00 2.00 0.00 0.00 0.00
34.61 29.43 0.00 2.00 0.00 0.00 0.00
34.78 26.69 0.00 2.00 0.00 0.00 0.00
34.94 25.69 0.00 2.00 0.00 0.00 0.00
35.11 24.24 0.00 2.00 0.00 0.00 0.00
35.27 25.32 0.00 2.00 0.00 0.00 0.00
35.43 25.72 0.00 2.00 0.00 0.00 0.00
35.60 27.02 0.00 2.00 0.00 0.00 0.00
35.76 27.79 0.00 2.00 0.00 0.00 0.00
35.93 28.94 0.00 2.00 0.00 0.00 0.00
36.09 29.20 0.00 2.00 0.00 0.00 0.00
36.26 26.86 0.00 2.00 0.00 0.00 0.00
36.42 24.55 0.00 2.00 0.00 0.00 0.00
36.58 23.42 0.00 2.00 0.00 0.00 0.00
36.75 21.78 0.00 2.00 0.00 0.00 0.00
36.91 20.59 0.00 2.00 0.00 0.00 0.00
37.08 19.34 0.00 2.00 0.00 0.00 0.00
37.24 18.67 0.00 2.00 0.00 0.00 0.00
37.40 18.28 0.00 2.00 0.00 0.00 0.00
37.57 17.69 0.00 2.00 0.00 0.00 0.00
37.73 16.88 0.00 2.00 0.00 0.00 0.00
37.90 17.00 0.00 2.00 0.00 0.00 0.00
38.06 18.75 0.00 2.00 0.00 0.00 0.00
38.22 21.36 0.00 2.00 0.00 0.00 0.00
38.39 25.06 0.00 2.00 0.00 0.00 0.00
38.55 27.71 0.00 2.00 0.00 0.00 0.00
38.72 27.02 0.00 2.00 0.00 0.00 0.00
38.88 27.93 0.00 2.00 0.00 0.00 0.00
39.04 32.29 0.00 2.00 0.00 0.00 0.00
39.21 33.63 0.00 2.00 0.00 0.00 0.00
39.37 31.61 0.00 2.00 0.00 0.00 0.00
39.54 26.76 0.00 2.00 0.00 0.00 0.00
39.70 28.47 0.00 2.00 0.00 0.00 0.00
39.86 28.93 0.00 2.00 0.00 0.00 0.00
40.03 26.07 0.00 2.00 0.00 0.00 0.00
40.19 22.68 0.00 2.00 0.00 0.00 0.00
40.36 17.80 0.00 2.00 0.00 0.00 0.00
40.52 14.87 0.00 2.00 0.00 0.00 0.00
40.68 19.35 0.00 2.00 0.00 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 59 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 918
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
40.85 22.62 0.00 2.00 0.00 0.00 0.00
41.01 20.97 0.00 2.00 0.00 0.00 0.00
41.18 19.68 0.00 2.00 0.00 0.00 0.00
41.34 18.34 0.00 2.00 0.00 0.00 0.00
41.50 17.76 0.00 2.00 0.00 0.00 0.00
41.67 16.36 0.00 2.00 0.00 0.00 0.00
41.83 15.45 0.00 2.00 0.00 0.00 0.00
42.00 15.91 0.00 2.00 0.00 0.00 0.00
42.16 15.68 0.00 2.00 0.00 0.00 0.00
42.32 16.00 0.00 2.00 0.00 0.00 0.00
42.49 16.59 0.00 2.00 0.00 0.00 0.00
42.65 16.30 0.00 2.00 0.00 0.00 0.00
42.82 16.07 0.00 2.00 0.00 0.00 0.00
42.98 16.53 0.00 2.00 0.00 0.00 0.00
43.15 17.12 0.00 2.00 0.00 0.00 0.00
43.31 17.57 0.00 2.00 0.00 0.00 0.00
43.47 18.09 0.00 2.00 0.00 0.00 0.00
43.64 18.95 0.00 2.00 0.00 0.00 0.00
43.80 19.68 0.00 2.00 0.00 0.00 0.00
43.97 18.36 0.00 2.00 0.00 0.00 0.00
44.13 17.25 0.00 2.00 0.00 0.00 0.00
44.29 17.57 0.00 2.00 0.00 0.00 0.00
44.46 19.10 0.00 2.00 0.00 0.00 0.00
44.62 18.67 0.00 2.00 0.00 0.00 0.00
44.79 18.37 0.00 2.00 0.00 0.00 0.00
44.95 18.08 0.00 2.00 0.00 0.00 0.00
45.28 17.70 0.00 2.00 0.00 0.00 0.00
45.44 17.41 0.00 2.00 0.00 0.00 0.00
45.61 16.78 0.00 2.00 0.00 0.00 0.00
45.77 16.16 0.00 2.00 0.00 0.00 0.00
45.93 16.47 0.00 2.00 0.00 0.00 0.00
46.10 15.72 0.00 2.00 0.00 0.00 0.00
46.26 15.57 0.00 2.00 0.00 0.00 0.00
46.43 15.81 0.00 2.00 0.00 0.00 0.00
46.59 16.39 0.00 2.00 0.00 0.00 0.00
46.75 17.16 0.00 2.00 0.00 0.00 0.00
46.92 16.81 0.00 2.00 0.00 0.00 0.00
47.08 16.26 0.00 2.00 0.00 0.00 0.00
47.25 15.78 0.00 2.00 0.00 0.00 0.00
47.41 15.43 0.00 2.00 0.00 0.00 0.00
47.57 15.02 0.00 2.00 0.00 0.00 0.00
47.74 14.93 0.00 2.00 0.00 0.00 0.00
47.90 16.22 0.00 2.00 0.00 0.00 0.00
48.07 15.81 0.00 2.00 0.00 0.00 0.00
48.23 15.27 0.00 2.00 0.00 0.00 0.00
48.39 15.77 0.00 2.00 0.00 0.00 0.00
48.56 15.55 0.00 2.00 0.00 0.00 0.00
48.72 14.89 0.00 2.00 0.00 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 60 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 919
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
48.89 14.29 0.00 2.00 0.00 0.00 0.00
49.05 14.27 0.00 2.00 0.00 0.00 0.00
49.22 14.57 0.00 2.00 0.00 0.00 0.00
49.38 14.81 0.00 2.00 0.00 0.00 0.00
49.54 14.48 0.00 2.00 0.00 0.00 0.00
49.71 14.14 0.00 2.00 0.00 0.00 0.00
49.87 13.80 0.00 2.00 0.00 0.00 0.00
50.04 14.42 0.00 2.00 0.00 0.00 0.00
50.20 16.02 0.00 2.00 0.00 0.00 0.00
50.36 15.67 0.00 2.00 0.00 0.00 0.00
50.53 14.88 0.00 2.00 0.00 0.00 0.00
50.69 13.91 0.00 2.00 0.00 0.00 0.00
50.86 13.51 0.00 2.00 0.00 0.00 0.00
51.02 14.13 0.00 2.00 0.00 0.00 0.00
51.18 14.50 0.00 2.00 0.00 0.00 0.00
51.35 13.40 0.00 2.00 0.00 0.00 0.00
51.51 13.45 0.00 2.00 0.00 0.00 0.00
51.68 13.68 0.00 2.00 0.00 0.00 0.00
51.84 13.48 0.00 2.00 0.00 0.00 0.00
52.00 13.84 0.00 2.00 0.00 0.00 0.00
52.17 14.46 0.00 2.00 0.00 0.00 0.00
52.33 13.81 0.00 2.00 0.00 0.00 0.00
52.50 13.92 0.00 2.00 0.00 0.00 0.00
52.66 13.72 0.00 2.00 0.00 0.00 0.00
52.82 13.64 0.00 2.00 0.00 0.00 0.00
52.99 14.19 0.00 2.00 0.00 0.00 0.00
53.15 15.00 0.00 2.00 0.00 0.00 0.00
53.32 15.17 0.00 2.00 0.00 0.00 0.00
53.48 14.71 0.00 2.00 0.00 0.00 0.00
53.64 14.44 0.00 2.00 0.00 0.00 0.00
53.81 14.87 0.00 2.00 0.00 0.00 0.00
53.97 15.67 0.00 2.00 0.00 0.00 0.00
54.14 16.16 0.00 2.00 0.00 0.00 0.00
54.30 17.15 0.00 2.00 0.00 0.00 0.00
54.46 17.01 0.00 2.00 0.00 0.00 0.00
54.63 16.67 0.00 2.00 0.00 0.00 0.00
54.79 16.90 0.00 2.00 0.00 0.00 0.00
54.96 17.51 0.00 2.00 0.00 0.00 0.00
55.12 17.49 0.00 2.00 0.00 0.00 0.00
55.28 18.36 0.00 2.00 0.00 0.00 0.00
55.45 19.04 0.00 2.00 0.00 0.00 0.00
55.61 19.40 0.00 2.00 0.00 0.00 0.00
55.78 19.38 0.00 2.00 0.00 0.00 0.00
55.94 20.25 0.00 2.00 0.00 0.00 0.00
56.11 19.65 0.00 2.00 0.00 0.00 0.00
56.27 19.56 0.00 2.00 0.00 0.00 0.00
56.43 19.22 0.00 2.00 0.00 0.00 0.00
56.60 19.96 0.00 2.00 0.00 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 61 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 920
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
56.76 20.32 0.00 2.00 0.00 0.00 0.00
56.93 19.15 0.00 2.00 0.00 0.00 0.00
57.09 17.56 0.00 2.00 0.00 0.00 0.00
57.25 16.72 0.00 2.00 0.00 0.00 0.00
57.42 15.96 0.00 2.00 0.00 0.00 0.00
57.58 15.58 0.00 2.00 0.00 0.00 0.00
57.75 16.12 0.00 2.00 0.00 0.00 0.00
57.91 15.74 0.00 2.00 0.00 0.00 0.00
58.07 15.29 0.00 2.00 0.00 0.00 0.00
58.24 14.84 0.00 2.00 0.00 0.00 0.00
58.40 15.06 0.00 2.00 0.00 0.00 0.00
58.57 14.86 0.00 2.00 0.00 0.00 0.00
58.73 14.73 0.00 2.00 0.00 0.00 0.00
58.89 14.47 0.00 2.00 0.00 0.00 0.00
59.06 14.70 0.00 2.00 0.00 0.00 0.00
59.22 14.32 0.00 2.00 0.00 0.00 0.00
59.39 14.55 0.00 2.00 0.00 0.00 0.00
59.55 14.97 0.00 2.00 0.00 0.00 0.00
59.71 14.35 0.00 2.00 0.00 0.00 0.00
59.88 14.15 0.00 2.00 0.00 0.00 0.00
60.04 13.89 0.00 2.00 0.00 0.00 0.00
60.21 17.22 0.00 2.00 0.00 0.00 0.00
60.37 24.79 0.00 2.00 0.00 0.00 0.00
60.53 24.12 0.00 2.00 0.00 0.00 0.00
60.70 21.31 0.00 2.00 0.00 0.00 0.00
60.86 34.20 0.00 2.00 0.00 0.00 0.00
61.03 42.46 0.00 2.00 0.00 0.00 0.00
61.19 33.90 0.00 2.00 0.00 0.00 0.00
61.35 34.62 0.00 2.00 0.00 0.00 0.00
61.52 28.16 0.00 2.00 0.00 0.00 0.00
61.68 24.55 0.00 2.00 0.00 0.00 0.00
61.85 21.76 0.00 2.00 0.00 0.00 0.00
62.01 18.10 0.00 2.00 0.00 0.00 0.00
62.17 16.20 0.00 2.00 0.00 0.00 0.00
62.34 15.75 0.00 2.00 0.00 0.00 0.00
62.50 25.88 0.00 2.00 0.00 0.00 0.00
62.67 39.13 0.00 2.00 0.00 0.00 0.00
62.83 33.36 0.00 2.00 0.00 0.00 0.00
63.00 27.69 0.00 2.00 0.00 0.00 0.00
63.16 22.06 0.00 2.00 0.00 0.00 0.00
63.32 31.45 0.00 2.00 0.00 0.00 0.00
63.49 38.18 0.00 2.00 0.00 0.00 0.00
63.65 28.24 0.00 2.00 0.00 0.00 0.00
63.82 21.77 0.00 2.00 0.00 0.00 0.00
63.98 21.75 0.00 2.00 0.00 0.00 0.00
64.14 19.76 0.00 2.00 0.00 0.00 0.00
64.31 21.33 0.00 2.00 0.00 0.00 0.00
64.47 27.93 0.00 2.00 0.00 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 62 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 921
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
64.64 28.66 0.00 2.00 0.00 0.00 0.00
64.80 40.13 0.00 2.00 0.00 0.00 0.00
64.96 34.17 0.00 2.00 0.00 0.00 0.00
65.13 41.46 0.00 2.00 0.00 0.00 0.00
65.29 42.71 0.00 2.00 0.00 0.00 0.00
65.46 48.51 0.00 2.00 0.00 0.00 0.00
65.62 64.17 0.00 2.00 0.00 0.00 0.00
65.78 55.59 0.00 2.00 0.00 0.00 0.00
65.95 164.10 0.06 2.00 0.06 0.00 0.00
66.11 223.79 0.01 2.00 -0.81 0.00 0.00
66.28 239.37 0.00 2.00 -1.05 0.00 0.00
66.44 180.20 0.04 2.00 -0.16 0.00 0.00
66.60 85.14 0.00 2.00 0.00 0.00 0.00
66.77 55.60 0.00 2.00 0.00 0.00 0.00
66.93 41.34 0.00 2.00 0.00 0.00 0.00
67.10 129.44 0.16 2.00 0.50 0.00 0.00
67.26 184.54 0.04 2.00 -0.23 0.00 0.00
67.42 159.47 0.07 2.00 0.12 0.00 0.00
67.59 159.84 0.07 2.00 0.12 0.00 0.00
67.75 171.65 0.05 1.18 -0.04 0.02 0.05
67.92 161.53 0.07 0.86 0.10 0.05 0.10
68.08 166.19 0.06 0.98 0.03 0.04 0.07
68.24 176.95 0.04 1.42 -0.12 0.01 0.03
68.41 166.00 0.06 0.98 0.03 0.04 0.07
68.57 148.49 0.10 0.61 0.27 0.10 0.19
68.74 133.89 0.14 0.46 0.45 0.14 0.28
68.90 131.97 0.15 2.00 0.47 0.00 0.00
69.07 164.78 0.06 2.00 0.05 0.00 0.00
69.23 190.45 0.03 2.00 -0.31 0.00 0.00
69.39 183.42 0.04 2.00 -0.21 0.00 0.00
69.56 185.80 0.03 2.00 -0.24 0.00 0.00
69.72 167.77 0.06 2.00 0.01 0.00 0.00
69.89 64.27 0.00 2.00 0.00 0.00 0.00
70.05 71.41 0.00 2.00 0.00 0.00 0.00
70.21 161.75 0.07 2.00 0.09 0.00 0.00
70.38 187.58 0.03 2.00 -0.27 0.00 0.00
70.54 155.04 0.08 2.00 0.18 0.00 0.00
70.71 246.48 0.00 2.00 -1.16 0.00 0.00
70.87 219.09 0.01 2.00 -0.74 0.00 0.00
71.03 200.82 0.02 2.00 -0.46 0.00 0.00
71.20 190.57 0.03 2.00 -0.31 0.00 0.00
71.36 181.97 0.04 1.74 -0.19 0.01 0.01
71.53 185.88 0.03 2.00 -0.25 0.00 0.00
71.69 193.50 0.03 2.00 -0.36 0.00 0.00
71.85 211.42 0.01 2.00 -0.62 0.00 0.00
72.02 217.60 0.01 2.00 -0.71 0.00 0.00
72.18 229.64 0.01 2.00 -0.90 0.00 0.00
72.35 230.01 0.01 2.00 -0.90 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 63 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 922
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
72.51 228.18 0.01 2.00 -0.88 0.00 0.00
72.67 207.03 0.02 2.00 -0.56 0.00 0.00
72.84 187.76 0.03 2.00 -0.27 0.00 0.00
73.00 166.25 0.06 2.00 0.03 0.00 0.00
73.17 154.41 0.08 2.00 0.19 0.00 0.00
73.33 163.13 0.07 2.00 0.07 0.00 0.00
73.49 168.33 0.06 2.00 0.00 0.00 0.00
73.66 172.72 0.05 2.00 -0.06 0.00 0.00
73.82 177.53 0.04 2.00 -0.13 0.00 0.00
73.99 196.10 0.02 2.00 -0.39 0.00 0.00
74.15 174.89 0.05 2.00 -0.09 0.00 0.00
74.31 161.74 0.07 2.00 0.09 0.00 0.00
74.48 177.15 0.04 2.00 -0.12 0.00 0.00
74.64 138.59 0.12 0.51 0.39 0.12 0.24
74.81 138.21 0.13 0.50 0.40 0.13 0.26
74.97 191.27 0.03 2.00 -0.32 0.00 0.00
75.13 167.09 0.06 1.02 0.02 0.03 0.07
75.30 56.85 0.00 2.00 0.00 0.00 0.00
75.46 54.58 0.00 2.00 0.00 0.00 0.00
75.63 84.94 0.00 2.00 0.00 0.00 0.00
75.79 82.57 0.00 2.00 0.00 0.00 0.00
75.96 41.04 0.00 2.00 0.00 0.00 0.00
76.12 26.81 0.00 2.00 0.00 0.00 0.00
76.28 141.65 0.12 0.54 0.35 0.12 0.22
76.45 172.54 0.05 1.22 -0.06 0.02 0.05
76.61 183.08 0.04 1.82 -0.20 0.00 0.01
76.78 155.79 0.08 0.74 0.17 0.06 0.13
76.94 119.42 0.20 0.38 0.61 0.20 0.38
77.10 148.88 0.10 0.63 0.26 0.10 0.18
77.27 160.29 0.07 0.83 0.11 0.05 0.10
77.43 178.20 0.04 2.00 -0.14 0.00 0.00
77.60 193.20 0.03 2.00 -0.35 0.00 0.00
77.76 169.30 0.06 2.00 -0.01 0.00 0.00
77.92 61.24 0.00 2.00 0.00 0.00 0.00
78.09 54.07 0.00 2.00 0.00 0.00 0.00
78.25 36.58 0.00 2.00 0.00 0.00 0.00
78.42 59.99 0.00 2.00 0.00 0.00 0.00
78.58 65.68 0.00 2.00 0.00 0.00 0.00
78.74 100.36 0.31 2.00 0.79 0.00 0.00
78.91 207.33 0.02 2.00 -0.56 0.00 0.00
79.07 209.59 0.02 2.00 -0.59 0.00 0.00
79.24 255.22 0.00 2.00 -1.30 0.00 0.00
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 64 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 923
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 :: Estimation of post-earthquake lateral Displacements :: (continued) Depth
(ft)
qc1N,cs FS Gamma Fa max
(%)
Gammalim LDI
(%)
Depth:
qc1N,cs:
Gammalim:
FS:
Fa:
Gammamax:
Lat. disp.:
Depth of test point
Adjusted and corrected cone resistance due to fines
Limiting shear strain
Calculated factor of safety against liquefaction
Maximum cyclic shear strain
Lateral displacement
Abbreviations
Total estimated displacement: 4.94
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software - Report created on: 10/19/2022, 8:48:38 AM 65 Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 924
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Total cone resistance
qt (tsf)
100 200 300
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Total cone resistance Custom Vs data
Vs (ft/s)
0 Depth (ft) 0
Custom Vs data Rigidity Index
K*G
0 Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Rigidity Index Deposit resistance factor
K(DR)
1 Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Deposit resistance factor Cyclic resistance ratio
CRR
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Cyclic resistance ratio
Aging Calculation Estimation
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software 77Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 925
This software is licensed to: Baez Geotechnical Group CPT name: CPT-02 Corrected norm. cone resistan
Qtn,cs
100 200 300
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
Corrected norm. cone resista SBTn Index Plot
Ic (Robertson 1990)
1 2 3 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
SBTn Index Plot
zAzBzAB H1
FS plot
Factor of safety
0 0.5 1 1.5 2
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642
FS plot Stresses vs Depth
Stresses (tsf)
0 2 4
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642 σv o (EQ )
uo (EQ )EQu
Stresses vs Depth Excess Head
hexc (ft)
0 2 4 6 8 10
Depth (ft)
7876747270686664626058565452504846444240383634323028262422201816141210 8642 hexc
σ'v o=0hA
Excess Head Liq. ejecta demand
LD (ton/ft)
0 5 10
Depth (ft)
4140393837363534333231302928272625242322212019181716151413121110 9876543210
LD: 0.05C R: 14.14
Liq. ejecta demand
Ejecta severity
N/A
Ejecta Severity Estimation
CLiq v.3.5.2.5 - CPT Liquefaction Assessment Software 78Project file: C:\Users\kribe\OneDrive\Desktop\BGG\Paseo CPT.clq 926
Appendix G
Phase I Environmental Site Assessment
927
6 5 5 1 2 T H S T R E E T , # 1 2 6 • O A K L A N D , C A • 9 4 6 0 7 • T E L / F A X 5 1 0 - 8 3 4 - 9 0 9 9 / 9 0 9 8
PHASE I
ENVIRONMENTAL
SITE ASSESSMENT
2092 Oakley Road
Oakley
California
FOR
John D’Ambrosio Family Trust c/o Mercantile Systems, Inc. 9040 Brentwood Boulevard
Brentwood, CA 94513
May 2, 2023
23-ENV6323
928
6 5 5 1 2 T H S T R E E T , # 1 2 6 • O A K L A N D , C A • 9 4 6 0 7 • T E L / F A X 5 1 0 - 8 3 4 - 9 0 9 9 / 9 0 9 8 May 2, 2023
23-ENV6323
John D’Ambrosio Family Trust c/o Mercantile Systems, Inc. 9040 Brentwood Boulevard
Brentwood, CA 94513
Attention: Mr. Dan Cosgrove
Subject: Phase I Environmental Site Assessment Report
2092 Oakley Road
Oakley, California 94561
Dear Mr. Cosgrove:
We have performed a Phase I Environmental Site Assessment in conformance with the scope and limitations of ASTM Practice E 1527-21/AAI of 2092 Oakley Road in Oakley, California, the property. Any exceptions to, or deletions from, this practice are described in Section 1 of this report. This assessment has revealed obvious evidence of a recognized environmental condition in connection with the property that warrants further investigation and/or documentation at this time.
Should you have any questions regarding this report, please contact the undersigned.
Sincerely,
Basics Environmental, Inc.
Donavan G. Tom, M.B.A., E.P., R.E.P.A.
Principal Consultant
929
PHASE I 23-ENV6323
TABLE OF CONTENTS
PROFESSIONAL CERTIFICATION
1.0 INTRODUCTION................................................................................................. 1-1
1.1 Purpose of Investigation ........................................................................................ 1-1
1.2 Scope of Work....................................................................................................... 1-1
1.3 Special Terms and Conditions................................................................................ 1-2
1.4 Limitations and Exceptions.................................................................................... 1-2
1.5 User Responsibilities............................................................................................. 1-2
2.0 SITE DESCRIPTION AND RECONNAISSANCE............................................... 2-1
2.1 Site Description and Uses...................................................................................... 2-1
2.1.1 Interviews.............................................................................................................. 2-1
2.1.2 Site Description and Uses...................................................................................... 2-2
2.1.3 Environmental Land-Use Conditions..................................................................... 2-3
2.2 Adjacent Properties................................................................................................ 2-7
2.2.1 Immediate Adjacent Properties.............................................................................. 2-7
2.2.2 Wells..................................................................................................................... 2-7
2.3 Non-ASTM E1527 Considerations ........................................................................ 2-8
2.3.1 Asbestos Containing Construction Materials.......................................................... 2-8
2.3.2 Lead-Based Paint................................................................................................... 2-8
2.3.3 Radon...................................................................................................................2-10
2.3.4 Mold.....................................................................................................................2-11
3.0 PHYSICAL SITE SETTING................................................................................. 3-1
3.1 Geomorphic Description........................................................................................ 3-1
3.2 Geologic Setting.................................................................................................... 3-1
3.3 Hydrogeologic Setting........................................................................................... 3-2
4.0 HISTORICAL REVIEW....................................................................................... 4-1
5.0 ENVIRONMENTAL DATABASE REVIEW ....................................................... 5-1
5.1 Agency Record Review ......................................................................................... 5-1
5.2 Local Agency File Review..................................................................................... 5-5
6.0 CONCLUSIONS AND RECOMMENDATIONS.................................................. 6-1
6.1 Conclusions........................................................................................................... 6-1
6.1.1 Data Gaps.............................................................................................................. 6-1
6.1.2 Environmental Issues/De Minimis Conditions........................................................ 6-1
6.1.3 Recognized Environmental Conditions (RECs)...................................................... 6-5
6.1.4 Controlled Recognized Environmental Conditions (CRECs).................................. 6-7 930
PHASE I 23-ENV6323
6.1.5 Historical Recognized Environmental Conditions (HRECs)................................... 6-7
6.1.6 Recommendations ................................................................................................. 6-7 List of Drawings
Drawing 1: Site Location
Drawing 2: Aerial Photograph (2020)
Drawing 3: Site Plan
Assessor’s Parcel Map
Photographs: 1–16
Appendices
APPENDIX A: Environmental Data Resources, Inc. Report
APPENDIX B: Historical USGS Topographic Maps
APPENDIX C: Historical Aerial Photographs
APPENDIX D: Historical Building Records
APPENDIX E: Phase I Environmental Questionnaire
APPENDIX F: Historical Oakley Vineyard Article (April 12, 2018) APPENDIX G: Verizon Wireless Hazmat Documents
APPENDIX H: Romiti Site Pesticide Use
APPENDIX I: Statement of Qualifications
931
PHASE I 23-ENV6323
PROFESSIONAL CERTIFICATION
PHASE I ENVIRONMENTAL SITE ASSESSMENT
2092 Oakley Road
Oakley, California
For
John D’Ambrosio Family Trust c/o Mercantile Systems, Inc. 23-ENV6323
May 2, 2023
I declare that, to the best of my professional knowledge and belief, 1 meet the definition of “Environmental Professional” as defined by the Environmental Protection Agency's Final Rule (40 CFR 312.21). I have the specific qualifications based on education, training and experience to assess a property of the nature, history and setting. In performing Phase I Environmental Site Assessments, I develop and perform the all appropriate inquiries in conformance with the standards and practices set forth in 40 CFR Part 312.
The findings, interpretations of data, recommendations, specifications or professional opinions are presented within the limits prescribed by available information at the time the report was prepared, in accordance with generally accepted professional environmental practice and within the requirements by the Client. There is no other warranty, either expressed or implied. The data and findings of this report are based on the readily available data and information obtained from numerous public and private agencies regarding the subject site and its immediate vicinity.
Additional search (at greater cost) may or may not disclose information which may significantly modify the findings of this report. We accept no liability on completeness or accuracy of the information presented and or provided to us, or any conclusions and decisions which may be made by the Client or others regarding the subject site.
This report was prepared solely for the benefit of Basic's Client. Basics consents to the release of this report to third parties involved in the transaction for which the report was prepared, including without limitation, lenders, title companies, public institutions, attorneys, and other consultants. However, any use of or reliance upon this report shall be solely at the risk of such party and without legal recourse against Basics, or its subcontractors, affiliates, or their respective employees, officers, or directors, regardless of whether the action in which recovery of damage is sought is based upon contract, tort (including the sole, concurrent or other negligence and strict liability of Basics), statute or otherwise. This report shall not be used or relied upon by a party that does not agree to be bound by the above statements.
Donavan G. Tom, M.B.A., E.P., R.E.P.A.
Principal Consultant
932
PHASE I 1-1 23-ENV6323
1.0 INTRODUCTION
1.1 Purpose of Investigation
Basics Environmental, Inc. (Basics) has performed this Phase I Environmental Site Assessment (ESA) for John D’Ambrosio Family Trust c/o Mercantile Systems, Inc. pursuant to our signed agreement on April 26, 2023. The "subject site" is at 2092 Oakley Road, Oakley, California (APN 037-110-031-4). The purpose of this ESA is to:
• Observe site conditions at the subject site in accordance with the protocols set forth by the American Society for Testing and Materials (ASTM) Standard E1527-21, Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process and U.S. Environmental Protection Agency’s All Appropriate Inquiry (AAI) Final Rule 40 CFR Part 312, except where modified by the proposal; • Identify to the extent feasible recognized environmental conditions in connection with the subject site. The ESA is intended to evaluate the potential for the presence of hazardous or toxic chemicals in the soil and/or groundwater resulting from past and present land use activities. To the extent possible, potential sources of hazardous or toxic chemicals from adjacent off-site operations will also be evaluated; and
• Render findings and professional opinions regarding the potential for adverse environmental impacts on or adjacent to the subject site.
1.2 Scope of Work
The scope of work performed for this ESA consisted of the following tasks:
• Field reconnaissance and personal interviews to evaluate environmental land-use conditions on the subject site and view adjacent properties; • Aerial Photograph, City Directory and/or Fire Insurance/Topographic Map review (typically back to 1940 or first developed use of the property) to evaluate former environmental land-use conditions on the subject site and adjacent properties; • Review of federal, state and county files and environmental database search report obtained from a commercial service providing up to date and current information; • Evaluation of the physical setting (geomorphic, geologic and hydrogeologic) of the subject site property; and
933
PHASE I 1-2 23-ENV6323
• Preparation of this ESA report to present the findings and professional opinions regarding potential recognized environmental conditions at the subject site.
The work for this ESA was performed within the Client approved scope of work and budget as set forth in the proposal.
1.3 Special Terms and Conditions
The goal of this ESA is to identify recognized environmental conditions indicating the presence or likely presence of any hazardous substances or petroleum hydrocarbons in structures, ground, groundwater, or surface water of the property. Recognized environmental conditions are not intended to include de minimis conditions that do not present risks to public health or environment and that would not be subject to enforcement actions by government agencies.
1.4 Limitations and Exceptions
This ESA only includes a visual evaluation of the presence of asbestos, lead paint, radon, or mold, if applicable. In addition, this ESA does not include the results of any sampling, monitoring, or other types of field and/or laboratory testing or investigation.
1.5 User Responsibilities
The User of this ESA will be responsible for: (1) determining the relationship of the purchase price to the value of the property; (2) disclosure of specialized knowledge, experience or information which may affect the environmental condition of the subject site; and (3) disclosure of any environmental cleanup liens against the property within recorded land title records, if applicable. None of the above was provided to Basics by the Client for our review. 934
PHASE I 2-1 23-ENV6323
2.0 SITE DESCRIPTION AND RECONNAISSANCE
2.1 Site Description and Uses
2.1.1 Interviews
A Basics representative (Mr. Donavan Tom, EP, REPA) visited the subject site on April 27, 2023. Basics observed the various facilities and operations conducted at the site and also noted the land-use in the vicinity of the site. Daniel J. Cosgrove, CEO- Chief Executive Officer of Mercantile Systems, Inc. and site representative, provided access to the subject site. Mr. Cosgrove was also briefly interviewed prior to the site visit. A standard environmental questionnaire was provided to Mr. Cosgrove prior to the site visit to obtain disclosure of specialized knowledge, experience or information that may affect the environmental condition of the subject site.
Discussions with and information provided by Mr. Cosgrove indicated the subject site is approximately 9.9-acres improved with two single family residential dwellings, working vineyard and cell tower/marketing sign. The subject site dwellings are 30+ years old and the property has been under the current ownership (John D’Ambrosio Family Trust) for approximately five years (2018). Mr. Cosgrove stated to his knowledge Mr. Al Lucchesi has been maintaining the vineyard for a long time and no barns, pesticides/herbicides or farming equipment is stored onsite. Mr.
Cosgrove indicated to his knowledge no hazardous materials or underground storage tanks have been utilized onsite. Mr. Cosgrove indicated that, for purposes of this assessment, he has no other specialized knowledge or experience pertaining to the site or the adjacent properties that is material to RECs in connection with the subject property.
Additional information obtained from interviews of onsite representatives is incorporated within the appropriate sections of this report.
935
PHASE I 2-2 23-ENV6323
2.1.2 Site Description and Uses
The subject site is located within the City of Oakley, along the north side of Oakley Road, approximately 300 feet west of the intersection of Empire Avenue and Main Street, and approximately one mile south of the San Joaquin River (See Drawings 1 and 2). The subject site consists of an approximately 435,034-square foot/9.987-acre “square” shaped parcel of land (APN 037-110-031-4) improved with an approximately 827-square foot one-story single family residential dwelling (2092 Oakley Road), an approximately 8271,751-square foot one-story single family residential dwelling (2100 Oakley Road), cell tower and vineyard (See Photos 1 – 2).
The one-story single-family residential dwelling (2092 Oakley Road) is constructed of wood framing on a concrete perimeter foundation with wood exterior walls. Interior building materials plaster/sheetrock interior walls and finished ceilings.
The one-story single-family residential dwelling (2100 Oakley Road) is constructed of wood framing on a concrete perimeter foundation with concrete stucco and brick facade exterior walls. Interior building materials sheetrock interior walls and finished ceilings.
Utilities including water, electric, and natural gas service are publicly available. Sewage was reported to be maintained by associated onsite septic tanks (however this could not be confirmed). Underground services for natural gas, water, and sanitary sewers transverse the street along the south side of the subject site. Located along Oakley Road is a telephone mounted electrical transformer owned and operated by PG&E. Such units are notable because they may be a polychlorinated biphenyl (PCB) source. PCB units may subject the owner/operator to various requirements. The release of PCB fluids or their combustion products (in the event of a fire) is a potential environmental liability and may require remediation. Observations of the area surrounding the transformer did not reveal any obvious signs of PCBs, hazardous material stains and/or spills. In addition, the transformer appeared to fairly new with no labels identifying PCBs.
Due to the age of the features and lack of PCB labels the probability of PCBs is low.
The general area surrounding the property is developed commercial and zoned C (General Commercial). A site plan illustrating the site and adjacent properties is shown in Drawing 3. 936
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The two single-family residential dwellings (2092 & 2100 Oakley Road) are currently occupied by private residences (Alejandro 925-724-3848 and Vivian 925-207-8424 respectively).
The cell tower is maintained by Verizon Wireless (2092 Oakley Road). The vineyard is maintained by Alan Lucchesi (Brownstone Growers, LLC).
2.1.3 Environmental Land-Use Conditions
The subject site was evaluated for the use and storage of hazardous substances and petroleum products; use of aboveground and underground storage tanks, storage and disposal of hazardous wastes; evidence of releases from hazardous materials, and identification of conduits to the subsurface.
One-Story Single-Family Residential Dwelling with Associated Detached Garage/Carport and Yard (2092 Oakley Road) (circa 1943) - The one-story single-family residential dwelling is located on the northeast portion of the subject site (See Photos 9 - 10). The one-story residential dwelling consists of one bedroom, one bath, kitchen, dining area and living room. The exterior includes a small sitting porch, outdoor patio, and associated landscaping. The associated yard of the residential dwelling is enclosed by a wooden fence. The main entrance is located along the east side of the building with an additional personnel door along the west side. Due to private occupancy, observations were limited to the exterior areas only. Discussions with Mr. Cosgrove indicated the building has always been utilized as a residential dwelling and no underground heating oil storage tanks were associated with the building. Visual observations of the exterior of the building did not reveal any obvious evidence of hazardous materials, stains or spills.
Associated One-Story Garage & Carport – The free standing one-story 1-car garage and 3-car carport is located southwest of the residential dwelling and are constructed of wood on a concrete slab (See Photos 11 - 12). Due to private occupancy, observations were limited to the exterior areas only. Discussions with Mr. Cosgrove indicated to his knowledge no hazardous materials, underground storage tanks, drains or sumps are associated with the garage building.
Visual observations of the exterior of the building did not reveal any obvious evidence of hazardous materials, stains or spills.
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Associated Yard Areas – An associated gravel paved access way is located on the east perimeter of the subject site providing access to the one-story residential dwelling from Oakley Road to the south. An additional gravel paved driveway is located on the east perimeter of the subject site providing access to the one-story residential dwelling from Main Street to the east. A concrete paved patio is located within the rear yard of the residential dwelling. The associated landscaped areas are located within the yard areas of the residential dwelling.
Visual observations of the rest of the associated yard areas did not reveal any obvious signs of hazardous materials, stains or spills. No obvious evidence of underground storage tanks, distressed vegetation, or surface impoundments were observed throughout the site during the inspection.
One-Story Single-Family Residential Dwelling with Associated Attached Garage and Yard (2100 Oakley Road) (circa 1967) - The one-story single-family residential dwelling is located along the center south perimeter of the subject site (See Photos 13 - 14). The one-story residential dwelling consists of three bedrooms, two bath, kitchen, dining area and living room. The exterior includes a front covered porch, outdoor patio, and associated landscaping. The associated rear yard of the residential dwelling is enclosed by a wooden fence. The main entrance is located along the south side of the building with an additional personnel door along the north side. Due to private occupancy, observations were limited to the exterior areas only. Discussions with Mr. Cosgrove indicated the building has always been utilized as a residential dwelling and no underground heating oil storage tanks were associated with the building. Visual observations of the exterior of the building did not reveal any obvious evidence of hazardous materials, stains or spills.
Associated Attached Garage – The attached one-story 2-car garage is located on the southwest portion of the residential dwelling and is constructed of wood framing on a concrete slab (See Photo 13). Due to private occupancy, observations were limited to the exterior areas only. Discussions with Mr. Cosgrove indicated to his knowledge no hazardous materials, underground storage tanks, drains or sumps are associated with the garage building. Visual observations of the exterior of the building did not reveal any obvious evidence of hazardous materials, stains or spills.
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Associated Yard Areas – An associated gravel paved access way is located on the southeast perimeter of the subject site providing access to the one-story residential dwelling from Oakley Road to the south. An additional gravel paved driveway is located on the south perimeter of the subject site providing access to the one-story residential dwelling from Oakley Road to the south.
A concrete paved patio is located within the rear yard of the residential dwelling. The associated landscaped areas are located within the yard areas of the residential dwelling.
Visual observations of the rest of the associated yard areas did not reveal any obvious signs of hazardous materials, stains or spills. No obvious evidence of underground storage tanks, distressed vegetation, or surface impoundments were observed throughout the site during the inspection.
Cell Tower Facility (2092 Oakley Road) (circa 2015) - The cell tower facility is located on the northeast corner of the subject site (See Photos 7 - 8). The cell tower facility consists of an approximately 67 foot tall wireless communications facility (cellular tower) designed as a faux water tank adorned with a City logo with nine (up to 18) hidden antennas. The structure and ancillary equipment is within a 25 foot by 45 foot screened area. The screened area consists of an eight foot high split-face CMU (concrete masonry unit) wall with capstones and pilasters that screen all of the equipment from public view. It also includes the footprint for the wireless structure. A six foot wide chain link access gate is along the south elevation to provide access the equipment and wireless structures. Due to private occupancy, observations were limited to the exterior. Discussions with Mr. Cosgrove indicated the building has a backup generator and no underground fuel storage tanks are associated with the tower. Visual observations of the cell tower facility did not reveal any obvious evidence of stains or spills.
Associated Vineyard - The associated vineyard occupies the majority of the subject site.
The associated vineyard consists of Zinfandel, Morvedra and Carrignan variety of grapes, and is accessible from Oakley Road to the South and Main Street to the east via gravel paved access ways. Located within the vineyards are rows of grape vines. Due to the large area of the subject site, site observations were limited to walking the perimeter boundaries of the associated vineyard.
Visual observations of the vineyard did not reveal any obvious signs of hazardous materials, stains or spills.
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Discussions with Mr. Cosgrove indicated to his knowledge no pesticides were stored, mixed, or disposed of onsite. However, Mr. Al Lucchesi has been maintaining the vineyard for a long time may have permits to apply pesticides. According to the City of Oakley website, Alan Lucchesi is part of a long-time Oakley family that has planted and cared for grape vines throughout the community for over 100 years. Most recently, Mr. Lucchesi has planted/transplanted dozens of acres of vines at the northeast corner of Rose Ave. and Laurel Rd., the northwest corner of Laurel and Empire Ave., the southwest corner of Empire and Oakley Rd., on the vacant land near the “Legless Lizard Preserve,” as well as in other areas. As has been mentioned by the City Council in the past, these plantings are welcomed, provide an attractive landscape, and help to preserve the agricultural heritage of Oakley. Mr. Lucchesi is permitted to utilize the premises exclusively for the transplanting, planting, cultivating and harvesting of grape vines. As part of the agreement, Mr. Lucchesi is not allowed to store, keep, or use hazardous substances on the premises. In addition, Mr. Cosgrove also indicated underground fuel tanks, equipment storage, repair, or maintenance were not located onsite.
Visual observations of the rest of the associated vineyard areas did not reveal any obvious signs of hazardous materials, stains or spills. No obvious evidence of underground storage tanks, distressed vegetation, or surface impoundments were observed throughout the site during the inspection.
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2.2 Adjacent Properties
2.2.1 Immediate Adjacent Properties
Sites in the vicinity of the subject site were observed during the sites reconnaissance to evaluate conditions or businesses indicative of hazardous or potentially toxic materials use.
The following are the uses of the adjoining properties.
North - Eagle City Mobile Home Trailer Park (2333 Main Street and Associated Private Streets)
South - Oakley Road followed by Residential Dwellings along Garden Court, Canopy Lane and Residential Farm House and Associated Vineyard (4961 Empire Avenue)
East - Valvoline Instant Oil Change (2435 Main Street), 7-Eleven/Citgo Gas Station (2437 Main Street) and Main Street followed by Residential Dwellings West - Eagle City Mobile Home Trailer Park (2333 Main Street and Associated Private Streets)
Visual observations of the Valvoline Instant Oil Change (2435 Main Street) and 7- Eleven/Citgo Gas Station (2437 Main Street) revealed obvious business activities indicative to the use, storage, and/or treatment of hazard materials. However, no obvious evidence was noted at the immediate adjacent properties that would represent a significant environmental concern to the subject site at this time.
2.2.2 Wells
No obvious evidence of wells, such as water supply wells and/or groundwater monitoring wells, were observed on the subject site. Mr. Cosgrove stated the vineyard is “dry farmed” meaning there is no water, the roots go deep into the sand to get water as needed. 941
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2.3 Non-ASTM E1527 Considerations
2.3.1 Asbestos Containing Construction Materials
An asbestos survey was not conducted at the property as a part of this assessment.
However, the subject site structures were confirmed to have been constructed before the ban on asbestos containing construction materials (ACCMs) in 1979, thus, ACCMs may have been utilized in their construction. No obvious evidence of friable or non-friable suspect asbestos containing materials was observed within easily accessible areas of the structures. Visual observations of the easily accessible areas of the structures appeared to be in fair condition with no obvious signs of significant health risk concerns.
Asbestos is a mineral fiber that occurs in rock and soil. Because of its fiber strength and heat resistance asbestos has been used in a variety of building construction materials for insulation and as a fire retardant. Original building materials not easily accessible including, but not limited to, flooring and masting materials, sheet rock muds and taping compounds, ceiling and roofing materials, and ducting and surfacing materials may contain ACCMs. To confirm if any asbestos materials are contained within the structures on the subject site, an asbestos survey should be performed by an AHERA trained asbestos professional. If the property buildings are slated for renovation or demolition, an asbestos inspection will be required, pursuant to the National Emission Standards for Hazardous Air Pollutant (NESHAPs.
2.3.2 Lead-Based Paint
A lead-based paint survey was not conducted at the property as a part of this assessment.
However, the subject site structures were confirmed to have been constructed before the ban on lead-based paints in 1978, thus, lead-based paints may have been utilized in their construction.
Visual observations of the easily accessible areas of the painted surfaces of the subject site structures appeared to be in fair condition with no obvious signs of chipping, cracking, and/or significant health risk concerns.
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Lead-based paint is any paint, varnish, stain, or other applied coating that has 1 mg per square cm (or 5,000 µg/g by dry weight) or more of lead. In Section 1017 of the Housing and Urban Development Guidelines, Residential Lead-Based Paint Hazard Reduction Act of 1992, otherwise known as " Title X", states that a lead-based paint hazard is "any condition that causes exposure to lead that would result in adverse human health effects" resulting from leadcontaminated dust, bare, lead-contaminated soil, and/or lead-contaminated paint that is deteriorated or present on accessible, friction, or impact surfaces. Therefore, under Title X, intact lead-based paint on most walls and ceilings would not be considered a "hazard,” although the paint should be maintained and its condition monitored to ensure that it does not deteriorate and become a hazard.
Common renovation activities like repairing, sanding, cutting, and demolition can create hazardous lead dust and chips by disturbing lead-based paint, which can be harmful to adults and children. If these materials are to be disturbed during renovation or demolition activities, proper lead based paint abatement will be required, pursuant to CAL/OSHA's Lead Construction Safety Orders, Title 8, Section 1532.1. One of the items (among several others) stated within these regulations is requirements to conduct personal air monitoring for airborne lead particulates of employees engaged in disturbance of lead-containing materials. The purpose of the air monitoring is to determine whether employee exposure to lead dust will exceed OSHA's established airborne lead Action Level (AL) and/or airborne Permissible Exposure Limit (PEL). Should personal air monitoring results reveal airborne lead exposure levels at or above CAL/OSHA's AL or PEL, additional requirements in the form of employee lead training, medical surveillance, record keeping, engineering controls, etc. are emphasized.
All potential waste with lead paint attached must be sampled and analyzed (characterized) for lead content prior to disposal as construction debris. If the total lead levels in the waste product are above 1,000 parts per million under TTLC (Total Threshold Limit Concentration) conditions, then the waste is classified as a hazardous lead-containing waste (RCRA waste). If the total lead levels are determined to be below 1,000 ppm under TTLC conditions, then the waste samples must be analyzed per STLC (Soluble Threshold Limit Concentration) conditions (California Waste 943
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Extraction Test (WET)) to confirm whether they should be classified as hazardous or nonhazardous waste.
Property owners who renovate, repair, or prepare surfaces for painting in pre-1978 rental housing or space rented by child-care facilities must, before beginning work, provide tenants with a copy of EPA's lead hazard information pamphlet Renovate Right: Important Lead Hazard Information for Families, Child Care Providers, and Schools. Owners of these rental properties must document compliance with this requirement — EPA's sample pre-renovation disclosure form may be used for this purpose. Under the rule, child-occupied facilities are defined as residential, public or commercial buildings where children under age six are present on a regular basis. The requirements apply to renovation, repair or painting activities. The rule does not apply to minor maintenance or repair activities where less than six square feet of lead-based paint is disturbed in a room or where less than 20 square feet of lead-based paint is disturbed on the exterior. Window replacement is not minor maintenance or repair. After April 2010, property owners who perform these projects in pre-1978 rental housing or space rented by child-care facilities must be certified and follow the lead-safe work practices required by EPA's Renovation, Repair and Remodeling rule.
2.3.3 Radon
Radon testing was not conducted at the property as a part of this assessment. However, based on the Map of Radon Zones provided by the United States Environmental Protection Agency (EPA), there is a low potential that radon concentrations at, or above, 4 picocuries per liter (pCi/l) are present at the site. Concentrations at, or above, 4 pCi/l are considered to be concentrations of concern per Cal-EPA and EPA. Based on the map, radon has been detected in Contra Costa County at average levels less than 2 pCi/l. Additional information can also be obtained from the California Department of Public Health’s Radon Program which provides a list of radon test results from throughout the state which are sorted by zip code.
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Radon is a naturally occurring radioactive gas that is odorless, invisible, and without taste. It is released during the natural decay of uranium, which is present in most rock, soil and water. Its occurrence in the state is influenced primarily by geology. Radon can be found throughout California because uranium exists in all rock and soil. Although certain areas of the state are more likely to contain higher radon levels than others, radon is a house-to-house issue.
You may live in an area of low radon potential yet your house can have elevated radon but your neighbor's house has a low radon level. Radon, in its natural state cannot be detected with the human senses. To confirm if any radon is contained within the structure on the subject site, testing should be performed by an EPA-authorized state certified radon testing professional.
2.3.4 Mold
A mold survey was not conducted at the property as a part of this assessment. No obvious evidence of mold or water damaged materials were observed within easily accessible areas of the structures.
In general, mold is a subset of the fungi family. Fungi are common and found in most ecosystems. Fungi is needed to help recycle organic material to sustain plant and animal life. In order to reproduce, mold release tiny spores into the air, which eventually attach onto surfaces favorable for growth. A class of fungi, molds have been found to cause a variety of health problems in humans, including allergic, toxicological, and infectious responses. Molds are decomposers of organic materials, and thrive in humid environments, and produce spores to reproduce as plants produce seeds. When mold spores land on a damp spot indoors, they may begin growing and digesting whatever they are growing on in order to survive. When excessive moisture or water accumulates indoors, mold growth will often occur, particularly if the moisture problems remain undiscovered or not addressed.
Currently, there are no established “sound, science-based Permissible Exposure Limits (PELs) for indoor molds at this time”. As mold becomes a more prevalent issue, building owners will need to stay informed on the subject. There are dozens of Internet web sites geared to the topic, and increased litigation in this area is also fueling increased interest. With any new trend there often is misinformation, incorrect conclusions, and conflicting information. Those involved 945
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in the building industry should consider the source and weight of information carefully before drawing conclusions and making decisions.
To confirm if any mold is present within the structure on the subject site, laboratory test and sampling can be performed by a qualified industrial hygienist for various species of fungi such as Aspergillus, Cladosporium, Stachybotris and other mycotoxyns, and bacteria families such as Legionella, etc. However, the only types of evidence that have been related consistently to adverse health effects are the presence of current or past water damage, damp materials, visible mold, and mold odor, not the number or type of mold spores nor the presence of other markers of mold in indoor air or dust.
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3.0 PHYSICAL SITE SETTING
3.1 Geomorphic Description
The subject site is located within the boundaries of the Sacramento/San Joaquin (Central) Valley, which extends from just north of Red Bluff southward to the Sacramento-San Joaquin River Delta, at approximately 25-30 feet above mean sea level near the western boundary of the Great Valley Geomorphic Province of California. The Central Valley is part of the Great Valley, a large northwest-trending structural trough, bordered on the east by the Sierra Nevada and the on west by the Coast Ranges.
The Central Valley can be divided into three primary geomorphic features; valley floors, uplands, and volcanic buttes (Olmsted and Davis, 1961). The valley floor features are generally composed of younger valley fill sediments and are located in the central part of the valley. On the east and west margins of the valley, upland geomorphic features predominate. These areas are generally composed of low hills, dissected uplands, and terraces mantled with a relatively thin soil cover. The sediments underlying these areas are generally older than those found in the flood plains.
3.2 Geologic Setting
The valley deposits are derived from the Coast Ranges to the west and the Sierra Nevada to the east. Granitic and metamorphic rocks outcrop along the eastern and southeastern flanks of the valley. Marine sedimentary rocks outcrop along most of the western, southwestern, southern, and southeastern flanks; and volcanic rocks and deposits outcrop along the northeastern flanks of the valley. The valley geomorphology includes dissected uplands, low alluvial plains and fans, river flood plains and channels, and overflow lands and lake bottoms. The majority of the native sediments near the site consist of Miocene to Holocene continental rocks and deposits of a heterogeneous mixture of generally poorly sorted clay, silt, sand, and gravel. Some beds of claystone, siltstone, sandstone, and conglomerate are also present. 947
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Information regarding oil and gas fields was researched at the California Department of Conservations website (http://maps.conservation.ca.gov/doggr/), the subject site falls within the River Break Gas Field; however no oil or gas wells, plugged and abandoned dry holes were noted on or nearby the subject site.
Information regarding soil lithology was researched at the California Water Resources Control Board’s website at https://geotracker.waterboards.ca.gov/. According to previous subsurface investigations performed at the Rain for Rent site (located at 5301 Live Oak Avenue, approximately 2,500 feet to the northwest), the subsurface soil encountered in the area consists of approximately 120 feet of unconsolidated sands, silts and clays overlying the Montezuma Formation. The Montezuma Formation is semi-consolidated silt and claystone that extends to approximately 390 feet bgs (Caprock 2007).
Based on a previous subsurface investigation performed at the Custom Cleaners site (located 2575 Main Street, approximately 1,000 feet to the south east and perceived up/cross gradient to the subject site), the subsurface is underlain by unconsolidated sands to approximately 12 feet bgs and followed by clay to at least 15 feet bgs (AEI 2001).
3.3 Hydrogeologic Setting
Information regarding local first depth to groundwater and flow direction were researched at the California Water Resources Control Board’s website at https://geotracker.waterboards.ca.gov. Information regarding regional groundwater aquifers and basins was researched at the California Department of Water Resources (DWR) website at https://data.cnra.ca.gov/dataset/ca-gw-basin-boundary-descriptions.
Regional Groundwater – The subject site is located within the East Contra Costa Groundwater Basin also referred to as San Joaquin Valley-East Contra Costa Subbasin covers a 168-square mile area (107,596 acres) in the eastern portion of Contra Costa County. The Subbasin includes the communities of Antioch, Bethel Island, Byron, Brentwood, the Town of Discovery Bay (TODB), Knightsen, and Oakley and two agricultural districts (Byron Bethany Irrigation District and East Contra Costa Irrigation District). The Subbasin is bounded on the north, east, and south by the Contra Costa County line, which is contiguous with the San Joaquin River (north) 948
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and Old River (east). In the west, the Subbasin is bounded by marine sediments of the Coast Range. The upper 400 feet of sediments are comprised of alluvial deposits with discontinuous clay layers interspersed with more permeable coarse-grained units.
East Contra Costa Groundwater Basin aquifer system is divided into the upper unconfined Shallow Zone (to about 150 feet below ground surface) and a lower semi-confined to confined Deep Zone (the Corcoran Clay is not present in the Subbasin). Most water wells are constructed within the upper 400 feet of the aquifer system. (DWR 1975).
Local Groundwater – Based on previous subsurface investigations performed at the Rain for Rent site (located at 5301 Live Oak Avenue, approximately 2,500 feet to the northwest and perceived down gradient to the subject site), the ground water within the area has been divided into three general aquifer units, consisting of the surficial, upper, and lower aquifers. The silt and clay layers of the upper unconsolidated material act as locally confining layers between these aquifers on a site specific scale. Groundwater depths range from the ground surface near the San Joaquin River to 10 feet bgs. and has been calculated to flow to the north-northeast towards the San Joaquin River (Caprock 2007).
Based on a previous subsurface investigation performed at the Custom Cleaners site (located 2575 Main Street, approximately 1,000 feet to the south east and perceived up/cross gradient to the subject site), the shallow groundwater has been encountered at 14 feet bgs (AEI 2001). Hillside runoff, aquifer pumping, tidal fluctuations or other factors may influence ground water levels. Seasonal variations should also be anticipated. 949
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4.0 HISTORICAL REVIEW
Site historical information was obtained from a review of Sanborn Fire Insurance Maps, United States Geological Survey (U.S.G.S.) Topographic Maps, aerial photographs, Google Street View Images, Polk, and Haines City Directories. In addition, local building and newspaper records were also reviewed. The following Sanborn maps, topographic maps, and city directories were reviewed on April 28, 2023, within the libraries maintained by the University of California in Berkeley, California and City of Oakland, in Oakland, California. The aerial photographs were reviewed online within the sites maintained by National Environmental Title Research, LLC, TerraServer, and Google Earth. In addition, Sanborn Fire Insurance Maps and additional aerials were obtained from Environmental Data Resources, Inc. (EDR).
Note: Copies of supporting aerials, city directories and maps are not typically included in the report. The historical references are reviewed within local public libraries and are copyright protected and cannot be reproduced without the consent of the owner. As such, our reports properly cite and reference the historical reference in accordance with ASTM E1527-21/AAI protocols.
Any incorporation of these documents without the permission of the owner would be against the law.
Reference Date
U.S.G.S. Topographic Map 1914
U.S.G.S. Topographic Map 1916
Sanborn Fire Insurance Map 1924
Sanborn Fire Insurance Map 1932
Aerial Photograph 1937
Aerial Photograph 1939
U.S.G.S. Topographic Map 1940
Aerial Photograph 1949
Aerial Photograph 1950
U.S.G.S. Topographic Map 1954
Aerial Photograph 1957
Pacific Telephone & Telegraph City Directory 1957
Aerial Photograph 1958
Aerial Photograph 1959
Aerial Photograph 1966
Aerial Photograph 1968
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U.S.G.S. Topographic Map 1968
Pacific Telephone & Telegraph City Directory 1968
Aerial Photograph 1970
Aerial Photograph 1972
Haines City Directory 1973
Haines City Directory 1976
U.S.G.S. Topographic Map 1978
Aerial Photograph 1979
Haines City Directory 1980
Aerial Photograph 1982
Aerial Photograph 1984
Haines City Directory 1985
Haines City Directory 1990
Aerial Photograph 1993
Haines City Directory 1995
Aerial Photograph 1998
Haines City Directory 2000
Aerial Photograph 2002
Aerial Photograph 2005
Haines City Directory 2005
Aerial Photograph 2006
Google Street View Image 2007
Aerial Photograph 2009
Aerial Photograph 2010
Haines City Directory 2010
Google Street View Image 2011
Aerial Photograph 2012
Aerial Photograph 2014
Haines City Directory 2015
Google Street View Image 2015
Aerial Photograph 2016
Google Street View Image 2017
Aerial Photograph 2018
Haines City Directory 2018
Google Street View Image 2019
Aerial Photograph 2020
Google Street View Image 2023
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According to the East Contra Costa Historical Society, the first accounts of identifiable cultural community in the west delta are attributed to the Bay Miwoks, Yokut and Ohlone Tribes, who occupied the region between 1100 and 1770 AD. During the 1700’s when California was part of Spain, Captain Pedro Fages passed through this region of California recording the first history of the area. Doctor John Marsh was the first Anglo settler in Contra Costa County and arrived on the scene in 1836. He built a riverboat freight landing on the San Joaquin River in the 1840’s near what is now Oakley.
Most people thought that the sandy soil in this section of Contra Costa County was not good for farming. It was covered with chaparral, oak trees, coyotes and jack rabbits. Early settlers of the area were laughingly referred to as Sandlappers as it was said that “only jack rabbits and coyotes can thrive here”. Within a few years Oakley’s orchards were blooming, and the little town was booming and no longer was anyone making fun of the settlers. James O’Hara was one of the first settlers in Oakley when he arrived in 1889. He purchased seven hundred acres of government grant land for five dollars an acre. He later sold most of this land to other settlers for fifty dollars an acre. It took his insight and the planting of nut trees and grapes to prove the sandy soil was good for growing crops.
On July 1, 1900, the first Santa Fe train stopped in Oakley. The Santa Fe Railroad provided the spur needed for agricultural growth of the area and afforded local farmers a means of transporting their products to market. By the 1930’s there were packing sheds along the Santa Fe spur that shipped carloads of produce to eastern markets.
In the USGS topographic maps of 1914 and 1916, the subject site is shown as undeveloped land approximately one mile west of the settlement of Oakley. During that time, bordering the site is undeveloped land to the north; a paved road (currently Oakley Road) and beyond undeveloped land to the south; a paved road (currently Main Street) and beyond undeveloped land to the east; and undeveloped land to the west.
In the Oakley Sanborn Fire Insurance Maps of 1924 and 1932, the subject site falls beyond the area of coverage and no site-specific map is available. 952
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According to an article within the “The Press Hometown News” dated April 12, 2018, Joe and Clemantina Romiti, grandparents to brothers Bernard and Frank Romiti (owners of the approximately 10-acre subject site in 2018), settled in Jackson after immigrating to the states from Italy. Joe then worked as a stone crusher for a gold mining operation. After the birth of three daughters, the family moved to Oakley and three sons were added to the family. They bought the subject site plot in 1930 for $4,000. According to Frank, it was purchased from the National Bank of Oakley. The bank had taken possession of the land after an embezzlement scheme involving a bank manager and a railroad employee was uncovered in the wake of the stock market crash of 1929. The land was already a well-established vineyard when the Romitis took over, and most of the vines still in production today are original, though no one is exactly sure how old they are.
Grapes were not the only crop grown here. Approximately three acres of almond trees shared the land with the vineyard until sometime in the late 1990s, when they were pulled out and replaced with grapevines. Joe and Clemantina built their first home on the property in 1936, and a second was added in 1966. They continued to purchase farm land around Oakley and eventually came to own four separate parcels. Over the years, the other parcels have been sold off.
In the aerial photograph of 1937, the north east portion of the subject site appears as agricultural land (orchard). The remainder of the subject site appears as agricultural land (vineyard). During that time, bordering the site is agricultural land (orchards) and small farm house to the north; no exposure to the south; a paved road (currently Main Street) and beyond agricultural land (vineyard) to the east; and agricultural land (vineyard) to the west.
In the aerial photograph of 1939, the north east portion of the subject site appears as agricultural land (orchard). A small structure (apparently the one-story residential dwelling at 2092 Oakley Road) is also shown on the northeast portion of the subject site. The remainder of the subject site appears as agricultural land (vineyard). During that time, bordering the site is agricultural land (orchards) and small farm house to the north; a paved road (currently Oakley Road) and beyond agricultural land (hay field) to the south; small vineyard and a paved road (currently Main Street) and beyond agricultural land (vineyard) to the east; and agricultural land (vineyard) to the west. Note: Main Street has been redirected (curved to the east), The original 953
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portion of Main Street appears to be the gravel paved access way along the east perimeter of the subject site (as noted during the site reconnaissance).
In the USGS topographic map of 1940, the subject site is shown as agricultural land (orchards) approximately one mile west of the settlement of Oakley. During that time, bordering the site is agricultural land (orchards) to the north; a paved road (currently Oakley Road) and beyond agricultural land (orchards) to the south; a paved road (currently Main Street) and beyond agricultural land (orchards) to the east; and agricultural land (orchards) to the west.
In the aerial photographs of 1949, 1950, 1957, 1958 and 1959, the north east portion of the subject site appears as agricultural land (orchard). A small residential structure with associated out building is also shown on the northeast portion of the subject site. The remainder of the subject site appears as agricultural land (vineyard). During that time, bordering the site is agricultural land (orchards) and small farm house to the north; a paved road (currently Oakley Road) and beyond agricultural land (orchards) and small farm house to the south; small vineyard and a paved road (currently Main Street) and beyond agricultural land (vineyard) and small farm house to the east; and agricultural land (orchard) and small farm house to the west.
In the USGS topographic map of 1954, the subject site is shown as primarily agricultural land (orchards) approximately one mile west of the settlement of Oakley. A small non-descript structure (most likely residential) is shown on the northeast portion of the subject site. During that time, bordering the site is agricultural land (orchards) to the north; a paved road (currently Oakley Road) and beyond agricultural land (orchards) with small non-descript structure (most likely residential) to the south; a paved road (currently Main Street) and beyond agricultural land (orchards) and small non-descript structure (most likely residential) to the east; and agricultural land (orchards) and small non-descript structure (most likely residential) to the west. Note: Main Street has been redirected (curved to the east), The original portion of Main Street appears to be the gravel paved access way along the east perimeter of the subject site (as noted during the site reconnaissance).
In the Pacific Telephone & Telegraph city directories of 1957 and 1968, the subject site address not listed, however several private individuals were listed on Oakley Road with no street numbers.
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In the aerial photograph of 1966, the north east portion of the subject site appears as agricultural land (orchard). A small residential structure with associated out building is also shown on the northeast portion of the subject site. The remainder of the subject site appears as agricultural land (vineyard). During that time, bordering the site is a trailer park to the north; a paved road (currently Oakley Road) and beyond agricultural land (orchards) and small farm house to the south; small vacant lot and a paved road (currently Main Street) and beyond agricultural land (vineyard) and small farm houses to the east; and agricultural land (orchard) and small farm house to the west.
According to local building records, the one-story residential dwelling (2100 Oakley Road) was constructed in 1967.
In the USGS topographic map of 1968, the subject site is shown as primarily agricultural land (orchards) approximately one mile west of the settlement of Oakley. A small non-descript structure (most likely residential) is shown on the northeast portion of the subject site. A new small non-descript structure (most likely residential) is shown on the south center portion of the subject site. During that time, bordering the site is a trailer park to the north; a paved road (currently Oakley Road) and beyond agricultural land (orchards) with small non-descript structure (most likely residential) to the south; a vacant lot and paved road (currently Main Street) and beyond agricultural land (orchards) and small non-descript structure (most likely residential) to the east; and agricultural land (orchards) and small non-descript structure (most likely residential) to the west.
In the aerial photographs of 1968 and 1972, the north east portion of the subject site appears as agricultural land (orchard). A small residential structure with associated out building is also shown on the northeast portion of the subject site. A small residential structure is shown on the south center portion of the subject site. The remainder of the subject site appears as agricultural land (vineyard). During that time, bordering the site is a trailer park to the north; a paved road (currently Oakley Road) and beyond agricultural land (orchards) and small farm house to the south; small vacant lot and a paved road (currently Main Street) and beyond agricultural land (vineyard) and small farm houses to the east; and agricultural land (orchard) and small farm house to the west.
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In the city directories of 1973, the subject site address not listed, however Romiti along with other several private individuals were listed on Oakley Road with no street numbers.
In the aerial photographs of 1974, 1979, 1982 and 1984, the north east portion of the subject site appears as agricultural land (orchard). A small residential structure with associated out building is also shown on the northeast portion of the subject site. A small residential structure with outdoor pool is shown on the south center portion of the subject site. The remainder of the subject site appears as agricultural land (vineyard). During that time, bordering the site is a trailer park to the north; a paved road (currently Oakley Road) and beyond agricultural land (orchards) and small farm house to the south; small structure and a paved road (currently Main Street) and beyond agricultural land (vineyard) and small farm houses to the east; and trailer park expansion to the west.
In the city directories of 1976, 1980 and 1985, the subject site address not listed, however Romiti along with other several private individuals were listed on Oakley Road with no street numbers.
In the USGS topographic map of 1978, the subject site is shown as primarily agricultural land (orchards) approximately one mile west of the settlement of Oakley. A small non-descript structure (most likely residential) is shown on the northeast portion of the subject site. A small non-descript structure (most likely residential) is shown on the south center portion of the subject site. During that time, bordering the site is a trailer park to the north; a small non-descript structure and a paved road (currently Oakley Road) and beyond agricultural land (orchards) with small nondescript structure (most likely residential) to the south; a paved road (currently Main Street) and beyond agricultural land (orchards) and small non-descript structure (most likely residential) to the east; and agricultural land (orchards) and small non-descript structure (most likely residential) to the west. Note: Main Street has been redirected (curved to the east), The original portion of Main Street appears to be the gravel paved access way along the east perimeter of the subject site (as noted during the site reconnaissance).
In the city directories of 1990, 1995 and 2000, the subject site address not listed, however Romiti along with other several private individuals were listed on Oakley Road with no street numbers.
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PHASE I 4-8 23-ENV6323
In the aerial photograph of 1993, the north east portion of the subject site appears as agricultural land (orchard). A small residential structure with associated out building is also shown on the northeast portion of the subject site. A small residential structure with outdoor pool is shown on the south center portion of the subject site. The remainder of the subject site appears as agricultural land (vineyard). During that time, bordering the site is a trailer park to the north; a paved road (currently Oakley Road) and beyond agricultural land (orchards) and small farm house to the south; small structure and a paved road (currently Main Street) and beyond residential development to the east; and trailer park expansion to the west.
In the aerial photograph of 1998, the north east portion of the subject site appears as dry agricultural land (former orchard). A small residential structure with associated out building is also shown on the northeast portion of the subject site. A small residential structure with outdoor pool is shown on the south center portion of the subject site. The remainder of the subject site appears as agricultural land (vineyard). During that time, bordering the site is a trailer park to the north; a paved road (currently Oakley Road) and beyond residential development, agricultural land (orchards) and small farm house to the south; small structure and a paved road (currently Main Street) and beyond residential development to the east; and trailer park expansion to the west.
In the aerial photographs of 2002, 2005, 2006, 2009, 2010, 2012 and 2014, the north east portion of the subject site appears as agricultural land (vineyard). A small residential structure with associated out building is also shown on the northeast portion of the subject site. A small residential structure with former outdoor pool is shown on the south center portion of the subject site. The remainder of the subject site appears as agricultural land (vineyard). During that time, bordering the site is a trailer park to the north; a paved road (currently Oakley Road) and beyond residential development, agricultural land (orchards) and small farm house to the south; new gasoline station, small new structure (current oil changer) and a paved road (currently Main Street) and beyond residential development to the east; and trailer park expansion to the west.
In the city directories of 2005, 2010, 2015 and 2018, the subject site address not listed, however Romiti along with other several private individuals were listed on Oakley Road with no street numbers. In addition, a 7-Eleven gas station is listed at the adjacent addresses of 2435 & 2437 Main Street, respectively.
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In the Google Street View Images of (July 2007, June 2011 and June 2015), the subject site appears with a small one-story residential dwelling with associated garage (2092 Oakley Road), a one-story residential dwelling (2100 Oakley Road) and vineyard. During that time, a 7- Eleven/Citgo Gas Station and Oil Can Henry’s appear on the adjacent property.
According to local building records, the cell tower (2092 Oakley Road) was constructed inn 2016. The cell tower is disguised as a water tower.
In the aerial photographs of 2016, 2018 and 2020, the north east portion of the subject site appears as agricultural land (vineyard). A small residential structure with associated out building is also shown on the northeast portion of the subject site. A new cell tower facility is shown on the north east corner of the subject site. A small residential structure with former outdoor pool is shown on the south center portion of the subject site. The remainder of the subject site appears as agricultural land (vineyard). During that time, bordering the site is a trailer park to the north; a paved road (currently Oakley Road) and beyond residential development, agricultural land (orchards) and small farm house to the south; new gasoline station, small new structure (current oil changer) and a paved road (currently Main Street) and beyond residential development to the east; and trailer park expansion to the west.
In the Google Street View Images of (April 2017, March 2019 and February 2023), the subject site appears with a small one-story residential dwelling with associated garage, cell tower disguised as a water tower (2092 Oakley Road), a one-story residential dwelling (2100 Oakley Road) and vineyard. During that time, a 7-Eleven/Citgo Gas Station and Valvoline Instant Oil Change appear on the adjacent property.
According to news report by “ABC 7 San Francisco” dated March 23, 2018, the subject site was put up for sale. During that time, six generations had enjoyed farming there but the two brothers who own the land were reluctantly selling. Joe and Clementina Romiti arrived in Oakley from Italy in 1911 and promptly bought land. Frank Romiti says it was a 10-acre parcel with two barns and a house and they purchased it for $10 in gold. Frank Romiti said, "At this point, the fourth generation is not interested in farming anymore and we're getting surrounded by housing so we decided to put it up for sale."
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5.0 ENVIRONMENTAL DATABASE REVIEW
5.1 Agency Record Review
Environmental Data Resources, Inc. (EDR) was contracted to compile data from available government agency databases on locations of actual and potentially impacted sites within a onemile radius of the subject property. Copies of the environmental database lists and the location map for the subject site are included in Appendix A.
The results of the database search by EDR revealed 69 mapped sites and 3 unmapped sites within a one-mile radius, of which 25 mapped sites are within a one-eighth mile radius of the subject site. Based on distance from the subject property and regional hydrogeology the following selected site(s) identified by EDR were deemed to have the highest potential to impact the subject site. In addition, a Tier 1 Vapor Encroachment Screen (VES) pursuant to ASTM E2600-10 was performed on the following selected site(s) to assess whether a potential vapor encroachment condition (VEC) exists at the subject property caused by the release of vapors from contaminated soil or groundwater either on or near the subject site. These sites identified by EDR were located either at, adjacent or possibly up gradient of the subject site. • Verizon Wireless Empire Oakley Road – 2092 Oakley Road.
Located at the subject site. Listed on the COUNTY and CERS databases.
According to the information provided by EDR, this site is listed with the County as a site utilizing unspecified hazardous materials in 2017 (CAL EPA# CAC003041132). No reports of spills or unauthorized releases were reported for this site by EDR.
For additional information, see Section 5.2 Local Agency File Review. • 7 Eleven, Inc. #32787/Southland Corp – 2437 Main Street, Oakley Located adjacent to the east and perceived cross gradient to the subject site. Listed on the RCRA NON-GEN, COUNTY, UST, CERS, HWTS and HAZNET databases.
According to the information provided by EDR, this site is listed with the County as having active underground fuel storage tanks. This site is also listed as manifesting offspecification, aged or surplus organics, aqueous solutions with total organic residues and other organic solids from 2002 to 2020 (CAL EPA#s: CAC002559654, CAL000266011). 959
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UST system primary containment was cited in 2022 for not being constructed, operated, and maintained product-tight. The tank system was noted as regularly leaking fuel into secondary containment per the multiple fuel alarms in the '87 turbine sump. Returned to compliance on 02/03/2022. No other reports of major violations, spills or unauthorized releases were noted for this site by EDR. In addition, according to the RWQCB’s GeoTracker and Cal-EPA EnviroStor websites, this site is not listed as an active or inactive case.
Based on this information, there is no record of subsurface impact from the adjacent site to the subject site. However, if future environmental investigations indicate an impact to ground water has spread from the adjacent site onto the subject site, it appears unlikely that there will be any financial liability to the owner of the subject site even if it has been impacted by the release. This conclusion is based on established State policy, which has been promulgated in Resolution 92-49 of the RWCQB, which is entitled Policies and Procedures for Investigation and Cleanup and Abatement of Water Discharges Under Water Code Section 13304. The Resolution reads in part, “The Regional Water Board shall... Require the discharger to extend the investigation, and cleanup and abatement, to any location affected by the discharge or threatened discharge; This language and the general practice of the governing regulatory agency are such that it is unlikely that any financial responsibility would be passed to the current or future owner(s) of the subject site in the unlikely event that the remedial investigation were to extend to the subject site.
This site is also within 528 feet of the critical distance to the nearest boundary of the subject site for suspect contaminated sites with petroleum hydrocarbon and MBTEX sources and within 1,760 feet of suspect contaminated sites with chlorinated solvents. The critical distance, as defined in E 2600-10, effectively is the upper limit distance a vapor can reasonably be expected to migrate in relatively permeable soil assuming the path of least resistance is directly from the nearest edge of the contaminated media (such as groundwater) to the nearest subject site boundary. As such, the conclusion from Tier 1 screening is that a VEC cannot be ruled out.
However, based on: (1) no record of subsurface impact at this time; and (2) cross gradient position, the probability of a subsurface environmental impact and/or potential vapor encroachment from this site to the subject site is low. However, based on the proposed residential redevelopment and/or depending on the confidence level required by the client, additional assessment to rule out a VEC may be warranted. 960
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• Henly Pacific dba Valvoline Instant Oil Change/Valvoline LLC dba Oil Can Henry’s/ T & L Oil Company dba Oil Can Henry’s/SC Fuels– 2435 Main Street, Oakley Located adjacent to the east and perceived cross gradient to the subject site. Listed on the RCRA NON-GEN, COUNTY, AST, CERS, HWTS and HAZNET Lists.
According to the information provided by EDR, this site is listed with the County as having active aboveground storage tanks. This site is also listed as manifesting waste oil, mixed oil, oil/water separation sludge, unspecified oil-containing waste and other inorganic solid waste from 2003 to 2020 (CAL EPA#s: CAL000274020, CAC002856703, CAL000419916, CAL000432553, CAL000458346). No reports of major violations, spills or unauthorized releases were noted for this site by EDR. In addition, according to the RWQCB’s GeoTracker and Cal-EPA EnviroStor websites, this site is not listed as an active or inactive case.
Based on this information, there is no record of subsurface impact from the adjacent site to the subject site. However, if future environmental investigations indicate an impact to ground water has spread from the adjacent site onto the subject site, it appears unlikely that there will be any financial liability to the owner of the subject site even if it has been impacted by the release. This conclusion is based on established State policy, which has been promulgated in Resolution 92-49 of the RWCQB, which is entitled Policies and Procedures for Investigation and Cleanup and Abatement of Water Discharges Under Water Code Section 13304. The Resolution reads in part, “The Regional Water Board shall... Require the discharger to extend the investigation, and cleanup and abatement, to any location affected by the discharge or threatened discharge; This language and the general practice of the governing regulatory agency are such that it is unlikely that any financial responsibility would be passed to the current or future owner(s) of the subject site in the unlikely event that the remedial investigation were to extend to the subject site.
This site is also within 528 feet of the critical distance to the nearest boundary of the subject site for suspect contaminated sites with petroleum hydrocarbon and MBTEX sources and within 1,760 feet of suspect contaminated sites with chlorinated solvents. The critical distance, as defined in E 2600-10, effectively is the upper limit distance a vapor can reasonably be expected to migrate in relatively permeable soil assuming the path of least resistance is directly from the nearest edge of the contaminated media (such as groundwater) to the nearest subject site boundary. As such, the conclusion from Tier 1 screening is that a VEC cannot be ruled out.
However, based on: (1) no record of subsurface impact at this time; and (2) cross gradient position, the probability of a subsurface environmental impact and/or potential vapor encroachment from this site to the subject site is low. However, based on the proposed residential redevelopment and/or depending on the confidence level required by the client, additional assessment to rule out a VEC may be warranted. 961
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• Eagle City, Inc. – 33 Otsego Street, Oakley
Located adjacent to the north and perceived down gradient to the subject site. Listed on the HWTS and HAZNET databases.
According to the information provided by EDR, this site is listed as manifesting asbestos containing waste in 2016 (CAL EPA#s: CAC002876098). No reports of major violations, spills or unauthorized releases were noted for this site by EDR. In addition, according to the RWQCB’s GeoTracker and Cal-EPA EnviroStor websites, this site is not listed as an active or inactive case. Based on this information, the probability of a subsurface environmental impact and/or potential vapor encroachment from this site to the subject site is low.
• Custom Cleaners – 2575 Main Street, Oakley
Located adjacent to the north and perceived down gradient to the subject site. Listed on the EDR HIST CLEANER, RCRA NON GEN, COUNTY, DRY CLEANERS, HAZNET and CPS-SLIC.
According to the information provided by EDR, this site is listed as a dry cleaners from at least 1991 to 2014 (CAL EPA# CAL000043941). This site is also listed as manifesting halogenated solvents, liquids with halogenated organic compounds, off-specification, aged or surplus organics and solids or sludges with halogenated organic compounds from 1993 to 2003 (CAL EPA#s: CAL000043941, CAL000209496). Impacts to the subsurface was discovered in 2001.
According to the CAL EPA DTSC EnviroStor and RWQCB GeoTracker online databases, a dry cleaner operated between about 1990 and 2009. In January 2016 a Phase II assessment relating to a property transaction showed the dry cleaning solvent tetrachloroethene (PCE) in the shallow soil gas up to 2,400 µg/m3. A follow-up assessment conducted in March 2016 showed groundwater did not contain (PCE) dry cleaning solvents, however, PCE was detected in soil gas beneath the building and beneath the drive behind the building. The maximum concentration of PCE in soil vapor was 240 ug/m3.
Based on the review by the RWQCB, the risk posed by the highest PCE soil vapor concentration is 1 x 10-7 excess cancer risk which is below the threshold of 1 x 10-6. There no further investigation was required on April 21, 2016.
Based on this information, there is no record of ground water impact at this site. However, if future environmental investigations indicate an impact to ground water has spread from the adjacent site onto the subject site, it appears unlikely that there will be any financial liability to the owner of the subject site even if it has been impacted by the release. This conclusion is based on established State policy, which has been promulgated in Resolution 92-49 of the RWCQB, which is entitled Policies and Procedures for Investigation and Cleanup and Abatement of Water Discharges Under Water Code Section 13304. The 962
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Resolution reads in part, “The Regional Water Board shall... Require the discharger to extend the investigation, and cleanup and abatement, to any location affected by the discharge or threatened discharge; This language and the general practice of the governing regulatory agency are such that it is unlikely that any financial responsibility would be passed to the current or future owner(s) of the subject site in the unlikely event that the remedial investigation were to extend to the subject site.
This site is also within 528 feet of the critical distance to the nearest boundary of the subject site for suspect contaminated sites with petroleum hydrocarbon and MBTEX sources and within 1,760 feet of suspect contaminated sites with chlorinated solvents. The critical distance, as defined in E 2600-10, effectively is the upper limit distance a vapor can reasonably be expected to migrate in relatively permeable soil assuming the path of least resistance is directly from the nearest edge of the contaminated media (such as groundwater) to the nearest subject site boundary. As such, the conclusion from Tier 1 screening is that a VEC cannot be ruled out.
However, based on: (1) no record of ground water impact at this time; (2) distance from the subject site; and (3) cross gradient position, the probability of a subsurface environmental impact and/or potential vapor encroachment from this site to the subject site is low.
5.2 Local Agency File Review
On April 26, 2023, a Basics representative contacted the California EPA - Department of Toxic Substance Control (CAL EPA DTSC) in Berkeley, California, in regards to any information concerning the subject site.
• 2092 Oakley Road, Oakley CA 94561 (APN 037-110-031-4) The subject site.
No information regarding the subject site was available within the CAL EPA DTSC hard files. However, according to the CAL EPA Regulated Site Portal online database. the following information was provided for the subject site:
Verizon Wireless Empire Oakley Road
This site has a current permit to operate a radio telephone communications facility from at least 2016-Present. As part of onsite operations, a backup battery is utilized for the emergency backup generator.
See Contra Costa County Health Services Agency – Hazardous Materials Division. 963
PHASE I 5-6 23-ENV6323
On April 26, 2023, a Basics representative contacted the California Regional Water Quality Control Board (RWQCB) in Oakland, California, in regards to any information concerning the subject site.
• 2092 Oakley Road, Oakley CA 94561 (APN 037-110-031-4) The subject site.
No information regarding the subject site was available within the RWQCB files or GeoTracker online database. No information regarding hazardous materials, underground storage tanks or unauthorized releases was available for the subject site.
On April 26, 2023, a Basics representative contacted the Bay Area Air Quality Management District (BAAQMD) in San Francisco, California, in regards to any information concerning the subject site.
• 2092 Oakley Road, Oakley CA 94561 (APN 037-110-031-4) The subject site.
No information regarding the subject site was available within the BAAQMD files. No information regarding hazardous materials, underground storage tanks or unauthorized releases was available for the subject site.
On April 26, 2023, a Basics representative contacted the Contra Costa County Health Services Agency – Hazardous Materials Division (CCCHSA) in Pacheco, California, in regards to any information concerning the subject site:
• 2092 Oakley Road, Oakley CA 94561 (APN 037-110-031-4) The subject site.
Information provided by the CCCHSA revealed the following information was available for the subject site:
Verizon Wireless Empire Oakley Road
This site has a current permit to operate a cell phone transmission tower site from at least 2016-Present (CERS ID# 10666939). As part of onsite operations, an approximately 16.64- gallon backup battery and approximately 132-gallon diesel fuel aboveground storage tank is utilized for the emergency back-up generator.
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Inspections were conducted in 2017, 2019 and 2021 by the CCCHSA. No major violations, spills or unauthorized releases were reported.
No other information regarding hazardous materials, underground storage tanks or unauthorized releases was available for the subject site.
On April 26, 2023, a Basics representative contacted the Contra Costa County Agricultural Commission (CCCAC) in Concord, California, in regards to any information concerning the subject site:
• 2092 Oakley Road, Oakley CA 94561 (APN 037-110-031-4) The subject site.
Information regarding the subject site was available within the CCCAC online website (https://www.contracosta.ca.gov/6242/Pesticide-Use-Reporting-and-Data). According to the CCCAC online database, the following information was provided for the subject site:
Oakley Road/Empire Avenue
A current permit issued to Alan Lucchesi (Brownstone Growers, LLC) for cultivation of perennial wine grapes and uncultivated ag.
According to Mr. Dave Hallinan, Agricultural Biologist/Weights and Measures Inspector with the CCCAC, permits for the use of herbicides or pesticides are tracked only for five years. Mr. Hallinan provided 5 permit application recordsfor surfactants and sulphursfrom 2017 to 2022. Earlier records are no longer available.
On April 26, 2023, a Basics representative contacted the East Contra Costa County Fire Protection District (ECCCFPD) in Pittsburg, California, in regards to any information concerning the subject site:
• 2092 Oakley Road, Oakley CA 94561 (APN 037-110-031-4) The subject site.
No information regarding the subject site was available within the ECCCFPD files. No information regarding hazardous materials, underground storage tanks or unauthorized releases was available for the subject site.
965
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On April 26, 2023, a Basics representative contacted the City of Oakley Building Department (OBD) in Oakley, California, in regards to any information concerning the subject site:
• 2092 Oakley Road, Oakley CA 94561 (APN 037-110-031-4) The subject site.
According to the information available within the OBD files and review of the City of Oakley Building Department online database (https://aca-prod.accela.com/CONCORD), the following records were provided for the subject site address:
2015 Design review of a new approximately 67 foot tall wireless communications facility (cellular tower) and Oakley kiosk sign. Owner Frank Romiti. 2016 Permit and plan check only for Verizon Cell site. Owner Ben Romiti. 2017 Building permit renewal. Owner Frank Romiti.
2018 Permit to removal and replace radio heads, surge protection and cable. 2021 Permit add antennas, surge supressors and cable and replace RRU’s Verizon. 2022 Application by Owen Poole and Dan Cosgrove requesting approval of 1) a General Plan Amendment (GPA 01-22) to redesignate 9.25 acres from Commercial (CO) to Residential Medium (RM); 2) a Rezone (RZ 03-22) of 9.25 acres from C (General Commercial) District to P-1 (Planned Unit Development) District; 3) a Final Development Plan (FDP 01-22) for development of the 9.25 acres site; 4) a Tentative Map (TM 04-22) to subdivide 9.25 acres into 83 single family residential lots, additional on-site parking, a toddler park, community gathering areas, and other improvements; and 5) a Design Review (DR 07-22) for floor plans and architecture of three homes types with three elevations and three color schemes, and landscaping and other improvements throughout the project. 2023 Building permit renewal. Owner John Di’Ambrosio Family Trust.
No information regarding hazardous materials, underground storage tanks or unauthorized releases was available for the subject site.
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6.0 CONCLUSIONS AND RECOMMENDATIONS
6.1 Conclusions
These conclusions are based on the data collected during performance of this ESA and are therefore subject to the time limitations associated with accessing governmental and site data. The purpose of this assessment was to evaluate the likelihood of soil and ground water degradation as a result of the use, storage, treatment, and/or disposal of hazardous materials/waste on the subject site and sites located within a one-mile radius. Findings are based on a geological and hydrogeological information study, and an evaluation of historical and present property use (historical resource review, regulatory agency database and file review, personal interviews and site reconnaissance study).
6.1.1 Data Gaps
A data gap is the failure to obtain information required by the standard despite good faith efforts by the environmental professional to gather the information. Based on the findings of our investigation, it is our opinion that there are no apparent significant data gaps within the scope of work performed.
6.1.2 Environmental Issues/De Minimis Conditions
De Minimis Conditions are defined by the ASTM Standard Practice E1527-21 as condition that generally does not present a threat to human health or the environment and that generally would not be the subject of an enforcement action if brought to the attention of appropriate governmental agencies. On the basis of the information compiled and reviewed by Basics, our findings indicate the following de minimis conditions:
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(1) Sometime between 1899 and 1930, the subject site was developed as agricultural land approximately one mile west of the settlement of Oakley According to the East Contra Costa Historical Society, James O’Hara was one of the first settlers in Oakley when he arrived in 1889. He purchased seven hundred acres of government grant land for five dollars an acre. He later sold most of this land to other settlers for fifty dollars an acre. It took his insight and the planting of nut trees and grapes to prove the sandy soil was good for growing crops.
According to an article within the “The Press Hometown News” dated April 12, 2018, Joe and Clemantina Romiti, grandparents to brothers Bernard and Frank Romiti (owners of the approximately 10-acre subject site in 2018), settled in Jackson after immigrating to the states from Italy in 1911. Joe then worked as a stone crusher for a gold mining operation.
After the birth of three daughters, the family moved to Oakley and three sons were added to the family. They bought the subject site plot in 1930 for $4,000. According to Frank, it was purchased from the National Bank of Oakley. The bank had taken possession of the land after an embezzlement scheme involving a bank manager and a railroad employee was uncovered in the wake of the stock market crash of 1929. The land was already a wellestablished vineyard when the Romitis took over, and most of the vines still in production today are original, though no one is exactly sure how old they are. The vineyard currently consists of Zinfandel, Morvedra and Carrignan variety of grapes.
Grapes were not the only crop grown here. Approximately three acres of almond trees occupied the northeast portion of the subject site along side the vineyard until sometime in the late 1990s, when they were pulled out and replaced with grapevines. Joe and Clemantina Romiti continued to purchase farm land around Oakley and eventually came to own four separate parcels. Over the years, the other parcels have been sold off.
According to news report by “ABC 7 San Francisco” dated March 23, 2018, the subject site was put up for sale. During that time, six generations had enjoyed farming there but the two brothers who own the land were reluctantly selling. Frank Romiti said, "At this point, the fourth generation is not interested in farming anymore and we're getting surrounded by housing so we decided to put it up for sale”.
The use as agricultural land has an obvious high potential business activity indicative to the storage, treatment or disposal of hazardous or potentially toxic materials.
See Section 6.1.3 - Recognized Environmental Conditions (RECs) 968
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(2) In 1936, the northeast portion of the subject site was developed with a one-story residential dwelling with associated barn/garage and yard (2092 Oakley Road).
Based on the historical references reviewed, Joe and Clemantina Romiti built their first home on the property in 1936 and has been utilized as a private residence since its construction.
The use as a private residence does not appear to have an obvious high potential for business activities indicative to the use, storage and/or treatment of hazardous materials. In addition, no information regarding the use of hazardous materials was uncovered during this time frame within the scope of work performed.
Discussions with Mr. Cosgrove indicated the building has always been utilized as a residential dwelling and no underground heating oil storage tanks were associated with the building.
Note: Prior to PG&E delivering natural gas to northern California in 1930, the furnaces in most homes and commercial businesses used fuel oil stored in a tank. Underground oil tanks were common prior to that time. As such, an underground heating oil tank is typical for a site such as this.
During the site visit, no obvious evidence (i.e. fill port, vent pipes, etc.) was noted during the site inspection. As such, no conclusive evidence of a former underground storage tank was uncovered onsite within the scope of work performed, however the possibility cannot be ruled out. Additional due diligence (i.e. utility search, etc.) can be performed to further assess the potential of a former underground storage tank onsite. Any redevelopment of the subject site should have contingencies to deal with the possible discovery and removal of such tanks (and associated contamination, if any) in accordance with local and state regulations.
(3) In 1966, the south center portion of the subject site was developed with a one-story residential dwelling with associated yard (2100 Oakley Road).
Based on the historical references reviewed, Joe and Clemantina Romiti built their second home on the property in 1966 and has been utilized as a private residence since its construction.
The use as a private residence does not appear to have an obvious high potential for business activities indicative to the use, storage and/or treatment of hazardous materials. In addition, no information regarding the use of hazardous materials was uncovered during this time frame within the scope of work performed.
969
PHASE I 6-4 23-ENV6323
Discussions with Mr. Cosgrove indicated the building has always been utilized as a residential dwelling and no underground heating oil storage tanks were associated with the building.
(4) In 2016, the northeast corner of the subject site was developed with a 67-foot tall wireless communications facility (cellular tower) (2092 Oakley Road).
Based on the historical references reviewed, the wireless communications facility was listed as being occupied by Verizon Wireless (2016-Present).
The cell tower facility consists of an approximately 67-foot tall wireless communications facility (cellular tower) designed as a faux water tank adorned with a City logo with nine (up to 18) hidden antennas. The structure and ancillary equipment is within a 25 foot by 45 foot screened area. The screened area consists of an eight-foot high split-face CMU (concrete masonry unit) wall with capstones and pilasters that screen all of the equipment from public view. It also includes the footprint for the wireless structure. A six-foot wide chain link access gate is along the south elevation to provide access the equipment and wireless structures.
This site has a current permit to operate a cell phone transmission tower site from at least 2016-Present (CERS ID# 10666939). As part of onsite operations, an approximately 16.64- gallon backup battery and approximately 132-gallon diesel fuel aboveground storage tank is utilized for the emergency back-up generator.
Inspections were conducted in 2017, 2019 and 2021 by the CCCHSA. No major violations, spills or unauthorized releases were reported.
Discussions with Mr. Cosgrove indicated the building has a backup generator and no underground fuel storage tanks are associated with the tower. Visual observations of the cell tower facility did not reveal any obvious evidence of stains or spills.
Because ultimately it remains the user who accepts the liability for having entered into a chain of title, it remains important that the user recognize that the “risk tolerance” of a regulatory agency could change, as could be the case if information is later uncovered to suggest that the de minimus conditions (i.e., those that generally do not present a material risk of harm to public health or the environment and that generally would not be the subject of an enforcement action if brought to the attention of appropriate governmental agencies) are of greater significance than once thought.
970
PHASE I 6-5 23-ENV6323
Based on the de minimis conditions stated above, additional scope of services (i.e., baseline environmental sampling), but not limited to, may or may not disclose information which may significantly reduce the “risk tolerance” in connection with the acquisition of a parcel of commercial real estate.
6.1.3 Recognized Environmental Conditions (RECs)
Recognized Environmental Conditions (RECs) are defined by the ASTM Standard Practice E1527-21 as the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property: (1) due to release to the environment; (2) under conditions indicative of a release to the environment; or (3) under conditions that pose a material threat of a future release to the environment. Based on the findings of our investigation, the following RECs were identified onsite:
(1) Perform agricultural sampling in accordance with the CAL EPA Department of Toxics Substance Control's Interim Guidance for Sampling Agricultural Properties, August 7, 2008.
Based on the historical references reviewed, the subject site has been utilized as agricultural land from at least the 1930s to present. The use as agricultural land indicates a potential environmental risk due to the potential use of pesticides and associated farm equipment.
Such chemicals are notable because they may be organophosphate sources.
Discussions with Mr. Cosgrove indicated to his knowledge no pesticides were stored, mixed, or disposed of onsite. However, Mr. Al Lucchesi has been maintaining the vineyard for a long time may have permits to apply pesticides.
According to the City of Oakley website, Alan Lucchesi is part of a long-time Oakley family that has planted and cared for grape vines throughout the community for over 100 years. Most recently, Mr. Lucchesi has planted/transplanted dozens of acres of vines at the northeast corner of Rose Ave. and Laurel Rd., the northwest corner of Laurel and Empire Ave., the southwest corner of Empire and Oakley Rd., on the vacant land near the “Legless Lizard Preserve,” as well as in other areas. As has been mentioned by the City Council in the past, these plantings are welcomed, provide an attractive landscape, and help to preserve the agricultural heritage of Oakley. Mr. Lucchesi is permitted to utilize the premises exclusively for the transplanting, planting, cultivating and harvesting of grape vines. As part of the agreement, Mr. Lucchesi is not allowed to store, keep, or use 971
PHASE I 6-6 23-ENV6323
hazardous substances on the premises. In addition, Mr. Cosgrove also indicated underground fuel tanks, equipment storage, repair, or maintenance were not located onsite.
According to Mr. Dave Hallinan, Agricultural Biologist/Weights and Measures Inspector with the CCCAC, permits for the use of herbicides or pesticides are tracked only for five years. Mr. Hallinan provided 5 permit application recordsfor surfactants and sulphursfrom 2017 to 2022. Earlier records are no longer available.
Based on the intended change in land use from agricultural to residential, sampling of soil, sediment in drainage ditches, and/or groundwater appears warranted based on the CAL EPA Department of Toxics Substance Control's Interim Guidance for Sampling Agricultural Properties, August 7, 2008.
Generally, sampling of soil, sediment in drainage ditches, and/or groundwater should occur at former agricultural sites if any of the following applies:
• Persistent pesticides were or are likely to have been used. • Pesticides were or are likely to have been stored, mixed, or disposed of on the property, or pesticide-application equipment was cleaned there. • There are known or suspected spills or accumulations of pesticides. • Pesticides are present in groundwater or there is reason to believe they may be present in groundwater.
• The site has ever had intensive management for orchard, nursery, or other high-value crops, including significant use of pesticides and irrigation.
Currently, no obvious evidence of current pesticides being stored, mixed, or disposed was observed onsite. In addition, no obvious evidence of underground or aboveground fuel tanks, equipment storage, repair, or maintenance was observed onsite. 972
PHASE I 6-7 23-ENV6323
6.1.4 Controlled Recognized Environmental Conditions (CRECs) Controlled Recognized Environmental Conditions (CRECs) are defined by the ASTM Standard Practice E1527-21 as a past release of hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority, with hazardous substances or petroleum products allowed to remain in place subject to the implementation of required controls. Based on the findings of our investigation, no apparent CRECs were identified onsite.
6.1.5 Historical Recognized Environmental Conditions (HRECs) Historical Recognized Environmental Condition (HRECs) are defined by the ASTM Standard Practice E1527-21 as a past release of any hazardous substances or petroleum products that has occurred in connection with the property and has been addressed to the satisfaction of the applicable regulatory authority or meeting unrestricted use criteria established by a regulatory authority, without subjecting the property to any required controls. Based on the findings of our investigation, no apparent HRECs were identified onsite.
6.1.6 Recommendations
This assessment has revealed obvious evidence of a recognized environmental condition in connection with the property that warrants further investigation and/or documentation at this time. See Section 6.1.3 - Recognized Environmental Conditions (RECs). 973
Site Location
Phase I Environmental Site Assessment
2092 Oakley Road
Oakley, California
PROJECT NO.
DRAWING NO.
23-ENV6323
1 N
Topographic Map Source: U.S. Geological Survey, 1978 Jersey Island and Brentwood Quadrangles, California
APPROXIMATE SCALE IN FEET
0 1800
SITE
974
Aerial Photograph (2020)
Phase I Environmental Site Assessment
2092 Oakley Road
Oakley, California
PROJECT NO.
DRAWING NO.
23-ENV6323
2 N
SITE Aerial Photo Source:U.S. Geological Survey & Google Maps
APPROXIMATE SCALE IN FEET AS DETERMINED FROM GOOGLE MAPS 0 500 1000
975
APPROXIMATE SCALE IN FEET AS DETERMINED FROM GOOGLE MAPS 0 100
Site Plan
Phase I Environmental Site Assessment
2092 Oakley Road
Oakley, California
PROJECT NO.
DRAWING NO.
23-ENV6323
3 N
SITE
ASSOCIATED
PAVED AREA
200
VALVOLINE INSTANT OIL CHANGE
(2435 MAIN STREET)
7-ELEVEN GAS STATION AND MART
(2437 MAIN STREET)
EAGLE CITY MOBILE HOME PARK
(2333 MAIN STREET)
VINEYARDS
EAGLE CITY MOBILE HOME PARK
(2333 MAIN STREET)
RESIDENTIAL FARMHOUSE AND VINEYARD
(4961 EMPIRE AVENUE)
RESIDENTIAL
RESIDENTIAL
RESIDENTIAL
ELEVATED WATER TANK WITH CELL TOWER
RESIDENTIAL DWELLING (2092)
RESIDENTIAL DWELLING (2150)
STORM DRAIN
PAVED ACCESS WAY
976
977
978
Site Photographs
Phase I Environmental Site Assessment
2092 Oakley Road
Oakley, California
PROJECT NO.
23-ENV6323
Photo 1: Subject Site (Facing North)
Two (2) One-Story Residential Dwellings (2092 & 2100 Oakley Road) and Associated Vineyard (Source: Google Maps)
Photo 2: Subject Site (Facing South)
Two (2) One-Story Residential Dwellings (2092 & 2100 Oakley Road) and Associated Vineyard (Source: Google Maps)
979
Site Photographs
Phase I Environmental Site Assessment
2092 Oakley Road
Oakley, California
PROJECT NO.
23-ENV6323
Photo 3: Subject Site (Facing Northwest)
Two (2) One-Story Residential Dwellings (2092 & 2100 Oakley Road) and Associated Vineyard Photo 4: Subject Site (Facing Northeast)
Two (2) One-Story Residential Dwellings (2092 & 2100 Oakley Road) and Associated Vineyard 980
Site Photographs
Phase I Environmental Site Assessment
2092 Oakley Road
Oakley, California
PROJECT NO.
23-ENV6323
Photo 5: Subject Site (Facing Southwest)
Two (2) One-Story Residential Dwellings (2092 & 2100 Oakley Road) and Associated Vineyard Photo 6: Subject Site (Facing Southeast)
Two (2) One-Story Residential Dwellings (2092 & 2100 Oakley Road) and Associated Vineyard 981
Site Photographs
Phase I Environmental Site Assessment
2092 Oakley Road
Oakley, California
PROJECT NO.
23-ENV6323
Photo 7: Subject Site (Facing Southwest)
Elevator Water Tank and Cell Tower and Associated Vineyard Photo 8: Subject Site (Facing Southwest)
Elevator Water Tank and Cell Tower and Associated Vineyard 982
Site Photographs
Phase I Environmental Site Assessment
2092 Oakley Road
Oakley, California
PROJECT NO.
23-ENV6323
Photo 9: Subject Site (Facing Northwest)
One-Story Residential Dwelling & Associated Yard
(2092 Oakley Road)
Photo 10: Subject Site (Facing Southeast)
One-Story Residential Dwelling & Associated Yard
(2092 Oakley Road)
983
Site Photographs
Phase I Environmental Site Assessment
2092 Oakley Road
Oakley, California
PROJECT NO.
23-ENV6323
Photo 11: Subject Site (Facing Northwest)
One-Story Residential Dwelling Garage
(2092 Oakley Road)
Photo 12: Subject Site (Facing Southeast)
One-Story Residential Dwelling Garage
(2092 Oakley Road)
984
Site Photographs
Phase I Environmental Site Assessment
2092 Oakley Road
Oakley, California
PROJECT NO.
23-ENV6323
Photo 13: Subject Site (Facing Northeast)
One-Story Residential Dwelling & Associated Yard
(2100 Oakley Road)
Photo 14: Subject Site (Facing Southwest)
One-Story Residential Dwelling & Associated Yard
(2100 Oakley Road)
985
Site Photographs
Phase I Environmental Site Assessment
2092 Oakley Road
Oakley, California
PROJECT NO.
23-ENV6323
Photo 15: Adjacent Site (Facing Northeast)
7-Eleven Gas Station and Mart
(2437 Main Street)
Photo 16: Adjacent Site (Facing Northwest)
Valvoline Instant Oil Change Facility
(2435 Main Street)
986
Appendix H
Hydrology Report
987
CONCORD
2290 Diamond Blvd. Suite 100
Concord, CA 94520-5744
PLEASANTON
7077 Koll Center Parkway, Suite 210
Pleasanton, CA 94566 Civil Engineering Land Surveying
HYDROLOGY REPORT
for
THE VILLAGE AT 2092 OAKLEY ROAD
SUBDIVISION 9634
CITY OF OAKLEY
CONTRA COSTA COUNTY
CALIFORNIA
November 2022
Client
Forecast Land Investment, LLC
4021 Port Chicago Highway, Suite H
Concord, CA 94520
City of Oakley
Planning Division
DEC 02, 2022
RECEIVED
988
CONCORD
2290 Diamond Blvd. Suite 100
Concord, CA 94520-5744
PLEASANTON
7077 Koll Center Parkway, Suite 210
Pleasanton, CA 94566 Civil Engineering Land Surveying
TABLE OF CONTENTS
I. Project Location and Description ................................................................................3 II. Existing Conditions ......................................................................................................3 III. Proposed Conditions ....................................................................................................3 IV. Conclusions ..................................................................................................................4
ATTACHMENTS
Attachment A: CCCFCD Standard - Runoff Coefficients
Attachment B: CCCFCD Mean Seasonal Isohyets (B-166)
Attachment C: CCCFCD Precipitation Duration-Frequency-Depth Curves (B-159) Attachment D: Hydrology Exhibit
989
CONCORD
2290 Diamond Blvd. Suite 100
Concord, CA 94520-5744
PLEASANTON
7077 Koll Center Parkway, Suite 210
Pleasanton, CA 94566 Civil Engineering Land Surveying
I. PROJECT LOCATION AND DESCRIPTION
The purpose of this report is to design the storm drain facilities for The Village and verify hydraulic capacity for stormwater conveyance. The Rational method was used to calculate the design flows for storm drain sizing.
The proposed 83-lot single family housing project will occupy the 9.99± acres in the City of Oakley, Contra Costa County, California. The site is located north of Oakley Road and west of Main Street in the City of Oakley. According to FEMA map No. 06013C0355G effective date March 21, 2017, the site is in Zone X (Area of Minimal Flood Hazard).
The storm drain lines will feed into two bioretention basins located at the north and east ends of the project site and direct storm water to the existing catch basin at the intersection of Main Street and Carol Lane.
II. EXISTING CONDITIONS
Under existing conditions, project site serves as open space with vegetation and two houses in the southern and eastern parts of the site. Runoff from the site travels via shallow overland flow easterly and infiltrates the ground.
The site is located next to the 7-11 convenience story to the east and the Eagle City mobile home community to the north and west. USGS web soil survey indicated the site falls under soil group “A”.
Elevation in this site ranges from as low as 23’ on the eastern side of project boundary to as high as 33’ at the center of the site. Currently the site drainage is overland, with most of the site being self-treating.
III. PROPOSED CONDITIONS
Under proposed conditions, the stormwater will be diverted to the bioretention basins by means of sheet flow and curb cuts. There will be storm drain piping connecting the basins together and ultimately tying into the existing storm drain system on Main Street. The sizing of the basin is proposed to satisfy Contra Costa County C.3 requirements. The bioretention basins are enclosed in parcels dedicated for stormwater treatment purposes.
The following assumptions were made for the hydraulic analysis.
1. Recurrence Interval: 10 years
2. Land Use: Residential P-1 (Min: 2900 Square Feet)
3. Runoff Coefficient “C”: 0.69
o See Attachment A: CCCFCD Standard - Runoff Coefficients.
4. Time of Concentration “tc”: varies from 5 – 11 minutes o Calculated by summing the times of concentration of roof-to-gutter and gutter flow. o For time of concentration of roof-to-gutter, see Attachment A: CCCFCD Standard - Runoff Coefficients.
o Time of concentration of gutter flow is calculated by dividing longest travel distance via gutter flow over a minimum 2 fps of travel velocity for stormwater runoff within gutters.
5. Mean Seasonal Precipitation: 11.5 inches
o See Attachment B: CCCFCD Mean Seasonal Isohyets (B-166).
6. Rainfall Intensity "i": varies from 1.68 – 1.85 inches per hour o See Attachment C: CCCFCD Precipitation Duration-Frequency-Depth Curves (B-159) and Table 1: Rainfall Intensity.
990
CONCORD
2290 Diamond Blvd. Suite 100
Concord, CA 94520-5744
PLEASANTON
7077 Koll Center Parkway, Suite 210
Pleasanton, CA 94566 Civil Engineering Land Surveying
7. Peak Flow Rate "Q": Q = C*i*A (per the Rational method)
8. Manning’s “n” value for HDPE = 0.013
9. Manning’s “n” value for RCP = 0.015
Table 1: Rainfall Intensity
Mean Seasonal
Precipitation (in)
Time of Concentration
"tc" (min)
Precipitation Depth
(in)
Rainfall Intensity "i"
(in/hr)
11.5 5 0.20 2.4
11.5 6 0.22 2.2
11.5 7 0.23 2.0
11.5 8 0.25 1.9
11.5 9 0.26 1.7
11.5 10 0.28 1.7
11.5 11 0.29 1.6
Under proposed conditions, the project site is divided into 3 drainage areas (see Attachment E: Hydrology Exhibit for drainage area delineation). Each drainage area sheet flows into a bioretention basin for treatment and outfalls to the existing storm drain system on Main Street. The peak flow rates for the drainage areas are shown in Table 2: Proposed Conditions Peak Flow Rates.
Table 2: Proposed Conditions Peak Flow Rates
Drainage
Area
Storm
Event
Runoff
Coefficient
"C"
Time of
Concentration
"tc" (min)
Rainfall
Intensity "i"
(in/hr)
Tributary Area
"A" (ac)
Q = C * i * A
(cfs)
DA-1 10-year 0.69 10.2 1.7 2.62 3.04
DA-2 10-year 0.69 9.7 1.7 2.04 2.40
DA-3 10-year 0.69 9.1 1.9 3.72 4.75
IV. CONCLUSIONS
In general, the existing conditions drainage patterns have been maintained to the point that the flow rate leaving the site is not exceeded in the proposed condition.
It is in our opinion that the on-site storm water detention system and storm drain pipe sizing has been designed so that there are no negative impacts on the adjacent properties. 991
Attachment A: CCCFCD Standard - Runoff Coefficients
992
993
994
Attachment B: CCCFCD Mean Seasonal Isohyets (B-166)
995
996
Attachment C: CCCFCD Precipitation Duration-Frequency-Depth Curves (B-159)
997
998
Attachment D: Hydrology Exhibit
999
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15 16
17 18
19 20
21 22
24 23
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
43 41
45 46
47 48
49 50
51 52
53 54
55 56
57 58
59 60
61 62
65 64
63 66
67 68
69 70
71 72
73 74
75 76
77 78
79 80
81 82
83 OAKLEY ROAD
42 44 A STREET
B STREET
G STREET C STREET D STREET E STREET F STREET
2.62 AC 0.69
DA1 C
3.04 CFS
Tc
10.2 MIN Qi
2.04 AC 0.69
DA2 C
2.4 CFS
Tc
9.7 MIN Qi
1.68 IN/HR
1.68 IN/HR
3.72 AC 0.69
DA3 C
4.75 CFS
Tc
9.1MIN Qi
1.85 IN/HR
MAIN STREET
PARK
PARK
1000
Appendix I
Preliminary Stormwater Control Plan
1001
STORMWATER CONTROL PLAN
for
THE VILLAGE AT 2092 OAKLEY ROAD
CITY OF OAKLEY, CONTRA COSTA COUNTY
CALIFORNIA
March 2023
Client
John D’Ambrosio
Dan Cosgrove
3130 Balfour Road Suite D #269
Brentwood, CA 94513
prepared by:
Bellecci & Associates Inc.
2290 Diamond Blvd. Suite 100
Concord, CA 94520
1002
TABLE OF CONTENTS
I. Project Data ..................................................................................................................1 II. Setting ..........................................................................................................................2 II.A. Project Description and Location ................................................................................................................ 2 II.B. Existing Site Condition .................................................................................................................................. 2 II.C. Opportunities and Constraints for Stormwater Control ......................................................................... 2 III. Low Impact Development Design Strategies ..............................................................2 III.A. Optimization of Site Layout.......................................................................................................................... 2 III.B. Use of Permeable Pavements ....................................................................................................................... 3 III.C. Dispersal of Runoff to Pervious Areas ....................................................................................................... 3 III.D. Bioretention or other Integrated Management Practices ......................................................................... 3 IV. Documentation of Drainage Design .............................................................................5 IV.A. Descriptions of each Drainage Management Area ................................................................................... 5 IV.A.1. Table of Drainage Management Areas 5
IV.A.2. Drainage Management Area Descriptions 6
IV.B. Tabulation and Sizing Calculations .............................................................................................................. 7 IV.B.1. Information Summary for IMP Design 7
IV.B.2. Self-Treating Areas 7
IV.B.3. Self-Retaining Areas 7
IV.B.4. Areas Draining to Self-Retaining Areas 7
IV.B.5. Areas Draining to IMPs 8
V. Source Control Measures .............................................................................................9 V.A. Site activities and potential sources of pollutants ...................................................................................... 9 V.B. Source Control Table ................................................................................................................................... 10 V.C. Features, Materials, and Methods of Construction of Source Control BMPs ................................... 10 VI. Stormwater Facility Maintenance ..............................................................................11 VI.A. Ownership and Responsibility for Maintenance in Perpetuity ............................................................. 11 VI.B. Summary of Maintenance Requirements for Each Stormwater Facility ............................................. 11 VII. Construction Plan C.3 Checklist ................................................................................12 VIII.Certifications ..............................................................................................................12 Tables
Table 1. Project Data .......................................................................................................................................... 1 Table 2. Drainage Management Areas ............................................................................................................. 5 Table 3. Information Summary for IMP Sizing ............................................................................................. 7 Table 4. Self-Treating Areas List ....................................................................................................................... 7 Table 5. IMP Sizing Calculations ...................................................................................................................... 8 Table 6. Source Controls .................................................................................................................................. 10 Table 7. Construction Plan C.3 Checklist ...................................................................................................... 10 1003
Figures
Figure 1. Project Location ................................................................................................................................ 2 Figure 2. Typical Bioretention Facility ............................................................................................................. 4 Figure 3. Typical Dry Well ................................................................................................................................. 4 Attachments
Attachment A: Contra Costa County Bioretention Facilities & Dry Well Information Attachment B: NRCS Websoil Survey Report
Attachment C: Stormwater Control Plan Exhibit
This Stormwater Control Plan was prepared using the template dated February 2018. 1004
The Village at 2092 Oakley Road Page 1 of 12 March 2023 I. PROJECT DATA
Table 1. Project Data
Project Name/Number The Village at 2092 Oakley Road
Application Submittal Date November 2022
Project Location 2092 Oakley Road, Oakley CA 94561
Name of Developer John D’Ambrosio and Dan Cosgrove
Project Phase No. N/A
Project Type and Description Residential with 83 single-family homes Project Watershed Marsh Creek Watershed
Total Project Site Area (acres) 9.99
Total Area of Land Disturbed (acres) 9.99
Total New Impervious Surface Area (sq. ft.) 226,174 SF
Total Replaced Impervious Surface Area 0
Total Pre-Project Impervious Surface Area 0
Total Post-Project Impervious Surface Area 226,174 SF
50% Rule[*] Doesn’t Apply
Project Density 8.3 DU/Acre
Applicable Special Project Categories None
Percent LID and non-LID treatment 100%
HM Compliance [†] Exempt—drains to linear detention basin. [*50% rule applies if:
Total Replaced Impervious Surface Area > 0.5 x Pre-Project Impervious Surface Area] [†HM required (unless project meets one of the exemptions on Guidebook p. 9) if:
(Total New Impervious Surface Area + Total Replaced Impervious Surface Area) ≥ 1 acre] 1005
The Village at 2092 Oakley Road Page 2 of 12 March 2023 II. SETTING
II.A. Project Description and Location
The Village at 2092 Oakley Road will be 83 single family homes and two parks on approximately 0.33 acres. The project is located approximately at 2092 Oakley Road, north of Oakley Road and west of Main Street.
II.B. Existing Site Condition
The site varies in elevation from as
low as 25 ft at the eastern boundary to
as high as 33 ft at the center of the
site. There are currently two existing
homes on the site that will be
demolished prior to grading, but the
majority of the site is covered with a
mixture of low grass and exposed soil.
A custom soil resource report was
created for the project site. The report
is a product of the United States
Department of Agriculture and the
Natural Resources Conservation
Service. The report is dated
September 13, 2022.
The site primarily consists of sandy
soils (NRCS Hydrologic Soil Group
“A”) which promote for faster infiltration of onsite stormwater. The current flow of the onsite stormwater drains towards the northeastern section of the site.
The existing general plan zoning is commercial. The proposed land use is for single family residential with lots as small as 2,900 square feet
II.C. Opportunities and Constraints for Stormwater Control Opportunities include permeable soils (soil group A) and a mildly sloping site. Constraints are high density land use (2,900 square foot lots). The site will be extensively graded to create building pads and roads.
Constraints include the location of the tie in structure which is located at the intersection of Main Street and Carol Lane north of the project site. The storm drain will need to be extended along Main Street to provide for a connection point for the treated stormwater.
Fortunately, the site naturally drains to the northeastern section of the site, so it is optimal to place the storm drain basins at the north and eastern boundaries of the project site.
III. LOW IMPACT DEVELOPMENT DESIGN STRATEGIES
III.A. Optimization of Site Layout
Existing conditions have the stormwater naturally draining towards the northeastern section of the project site. It is most optimal to design the bioretention basins at the northeastern section of the Figure 1. Project Location
1006
The Village at 2092 Oakley Road Page 3 of 12 March 2023 project site for this reason as less fill will be required. The project also proposes to use landscaping to minimize impervious areas.
III.B. Use of Permeable Pavements
Permeable pavers are not used on this site. All stormwater runoff is captured and treated by either dry wells or a bioretention facility.
III.C. Dispersal of Runoff to Pervious Areas
Runoff from roofs will be directed to the alleys, using roof downspouts, and sheet flow towards the treatment facilities using catch basins and curb cuts. The catch basins and curb cuts will direct runoff towards the basin for treatment. These basins—dry wells and bioretention facility—are designed to treat the runoff through infiltration, decrease the time of concentration via evapotranspiration and percolation through engineered soil, and discharge the treated runoff into the storm drain system
III.D. Bioretention or other Integrated Management Practices Runoff from roofs and paved areas on each of the 83 residential lots, as well as the streets constructed in connection with the project, will be collected and conveyed to one of the two dry wells or the bioretention facility. Bioretention facilities detain runoff in a surface reservoir, filter it through plant roots and a biologically active soil mix, and then infiltrate it into the ground. Underdrains (4” perforated pipes) are used to convey treated runoff that does not infiltrate to a storm drain. The BMP’s are located at the low points of the respective drainage management areas. Each BMP has adequate hydraulic head to allow drainage into and away from the BMP without need for pumps. The sizes of each drainage area and the corresponding BMP are shown in Table 2.
The typical dry well is a prefabricated structure, such as an open-bottomed vault or box, placed in an excavation or boring. The vault may be empty, which provides maximum space efficiency, or may be filled with rock.
An infiltration basin has the same functional components—a volume to store runoff and sufficient area to infiltrate that volume into the native soil—but is open rather than covered. 1007
The Village at 2092 Oakley Road Page 4 of 12 March 2023 Figure 2. Typical Bioretention Facility
Figure 3. Typical Dry Well
1008
The Village at 2092 Oakley Road Page 5 of 12 March 2023 IV. DOCUMENTATION OF DRAINAGE DESIGN
IV.A. Descriptions of each Drainage Management Area
Impervious areas in the site (roofs, driveways, and walkways) have been divided into distinct drainage areas as shown on the Stormwater Control Plan exhibit. Runoff from each of these areas is managed by routing to the respective vegetative swale.
IV.A.1. Table of Drainage Management Areas
Table 2. Drainage Management Areas (DMA)
DMA Name Area (SF) Surface Type/Description Drains to
DMA 1A 118,202 Runoff generated from A Street, B Street, and F Street asphalt, concrete paved areas,
and parking stalls, as well as, the roof
runoff from Lots 1-23.
IMP-1
DMA 1B 11,211 Runoff from landscape surrounding IMP 1. IMP-1 DMA 2A 81,299 Runoff generated from E Street and half of G Street, concrete paved areas and parking
spots, as well as, the runoff from Lots 24-
55. IMP-2
DMA 2B 10,014 Runoff from landscape surrounding IMP 2,
Park Parcel B, and half of Park Parcel A.
IMP-2
DMA 3A 156,910 Runoff generated from C Street, D Street, and half of G Street, concrete paved areas,
parking stalls, as well as, Lots 43-83.
IMP-3
DMA 3B 6,991 Runoff from landscape surrounding IMP 3. IMP-3 DMA 4 6,343 Self-treating existing open space N/A
DMA 10A 1,024 Offsite sidewalk along Oakley Rd. IMP 10
DMA 10B 5,348 Offsite pavement addition to Oakley Rd. IMP 10 DMA 11A 2,200 Offsite sidewalk along Oakley Rd. IMP 11
DMA 11B 11,009 Offsite pavement addition to Oakley Rd. IMP 11 DMA 12A 1,781 Offsite sidewalk along Oakley Rd. IMP 12
DMA 12B 12,534 Offsite pavement addition to Oakley Rd. IMP 12 1009
The Village at 2092 Oakley Road Page 6 of 12 March 2023 IV.A.2. Drainage Management Area Descriptions
DMA-1A&1B Runoff generated from the house footprints of Lots 1 through 23, A Street, B Street, F street, all the parking stalls along Street A and Street F, as well as the landscape surrounding IMP1, drain towards the dry well (IMP-1) and discharges northeast. The total surface area of the basin will be approximately 2,743 square feet. Dry Well IMP-1 will be approximately in the shape of a rectangle with a length of 230 feet and a width varying from 12 feet. Perforated 4” pipe will function as an underdrain to transport treated runoff that has not infiltrated the ground to the City’s storm system.
DMA-2A&2B: Runoff generated from the house footprints of Lots 24 through 42, E Street, half of G Street, the corresponding portion of the Street G parking, as well as half of the Parcel A park and all of the Parcel B park, drain towards the bioretention basin (IMP-2) and discharges northeast. The total surface area of the basin will be approximately 3,294 square feet. Bioretention Basin IMP-2 will be approximately in the shape of a small rectangle with a length of 200 feet and a width of 5 feet combined with a triangle with a length of 50 feet and width of 50 feet. Perforated 4” pipe will function as an underdrain to transport treated runoff that has not infiltrated the ground to the City’s storm system.
DMA-3A&3B: Runoff generated from the house footprints of Lots 43 through 83, C Street, D Street, half of G street, the corresponding portion of the G Street parking, as well as, the landscape area surrounding IMP 3 and along the west side of the site, drains towards the dry well(IMP-3) and discharges northeast. The total surface area of the basin will be approximately 3,556 square feet. Dry Well IMP-3 will be approximately in the shape of a rectangle with a length of 117 feet and a width of 30 feet. Perforated 4” pipe will function as an underdrain to transport treated runoff that has not infiltrated the ground to the City’s storm system.
DMA-4: Is the existing self-treating Parcel E. The proposed sidewalk within Parcel E, connecting Main Street to the Site, is less than 5% of the total area. According to the C.3 Guidebook, a selftreating area can be contain 5% or less impervious area.
DMA-10A&10B: Runoff generated from the offsite sidewalk and Oakley Rd. pavement improvements will be captured and treated within the proposed landscape planter fronting the sidewalk. The treatment facility is a dry well with a modified bioretention facility. Dry wells need an additional source of treatment, if intended to treat a heavier trafficked roadway. As such, the dry well surface area has been increased almost ten times the required amount and a bioretention facility is being added to the top of the dry well. The required surface area of the dry well is 127 SF, the total surface area of the basin will be approximately 1,023 square feet. Perforated 4” pipe will function as an underdrain to transport treated runoff that has not infiltrated the ground to the City’s storm system.
DMA-11A&11B: Runoff generated from the offsite sidewalk and Oakley Rd. pavement improvements will be captured and treated within the proposed landscape planter fronting the sidewalk. The treatment facility is a dry well with a modified bioretention facility. Dry wells need an additional source of treatment, if intended to treat a heavier trafficked roadway. As such, the dry well surface area has been increased almost ten times the required amount and a bioretention facility is being added to the top of the dry well. The required surface area of the dry well is 264 SF, the total surface area of the basin will be approximately 2,045 square feet. Perforated 4” pipe will function as an underdrain to transport treated runoff that has not infiltrated the ground to the City’s storm system.
DMA-12A&12B: Runoff generated from the offsite sidewalk and Oakley Rd. pavement improvements will be captured and treated within the proposed landscape planter fronting the sidewalk. The treatment facility is a dry well with a modified bioretention facility. Dry wells need an additional source of treatment, if intended to treat a heavier trafficked roadway. As such, the dry well 1010
The Village at 2092 Oakley Road Page 7 of 12 March 2023 surface area has been increased almost six times the required amount and a bioretention facility is being added to the top of the dry well. The required surface area of the dry well is 286 SF, the total surface area of the basin will be approximately 1,644 square feet. Perforated 4” pipe will function as an underdrain to transport treated runoff that has not infiltrated the ground to the City’s storm system.
IV.B. Tabulation and Sizing Calculations
IV.B.1. Information Summary for IMP Design
Table 3. Information Summary for IMP Sizing
Total Project Area (Square Feet) 435,600 SF
Mean Annual Precipitation 12 in
IMPs Designed For: Treatment Only
IV.B.2. Self-Treating Areas
Table 4. Self-Treating Areas List
IV.B.3. Self-Retaining Areas
There are no self-retaining areas.
IV.B.4. Areas Draining to Self-Retaining Areas
There are no DMAs draining to self-retaining areas.
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The Village at 2092 Oakley Road Page 8 of 12 March 2023 IV.B.5. Areas Draining to IMPs
Table 5. IMP Sizing Calculations
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The Village at 2092 Oakley Road Page 9 of 12 March 2023 V. SOURCE CONTROL MEASURES
V.A.Site activities and potential sources of pollutants This single-family residential project will create few potential sources of stormwater pollutants.
Sources to be controlled are:
Potential dumping of washwater or other liquids into storm drain inlets Need for future indoor or structural pest control
Fertilizers and pesticides used in park maintenance and home yard and garden maintenance 1013
The Village at 2092 Oakley Road Page 10 of 12 March 2023 Vehicle washing
V.B.Source Control Table
Table 6. Source Controls
Potential source of
runoff pollutants
Permanent
source control BMPs
Operational
source control BMPs
On-site storm drain
inlets
All accessible on-site inlets will be marked
with the words “No dumping! Flows to
Bay”
Markings will be periodically
repainted or replaced
Inlets and pipes conveying
stormwater to BMPs will be
inspected and maintained as part of
BMP Operation and Maintenance
Plan
Need for future indoor
and structural pest
control
Integrated Pest Management (IPM)
information will be provided to
new homeowners
Landscape/outdoor
pesticide use
Final landscape plans will:
Be designed to minimize irrigation and
runoff and to minimize use of fertilizers and
pesticides that can contribute to stormwater
pollution.
Specify plantings within the vegetated
swales that are tolerant of the sandy loam
soils and periodic inundation
Include pest-resistant plants
Include plantings appropriate to site soils,
slopes, climate, sun, wind, rain, land use, air
movement, ecological consistency, and plant
interactions.
Landscape will be maintained using
minimum or no pesticides
IPM information will be provided
to new homeowners.
Vehicle washing Driveways and parking areas drain to the vegetated swales
Distribute stormwater pollution
prevention information to
homeowners
V.C.Features, Materials, and Methods of Construction of Source Control BMPs Source Control BMP’s will be constructed per the Contra Costa County C.3 Guidebook standard requirements.
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The Village at 2092 Oakley Road Page 11 of 12 March 2023 VI. STORMWATER FACILITY MAINTENANCE
VI.A. Ownership and Responsibility for Maintenance in Perpetuity All stormwater treatment facilities in this plan will be maintained by the HOA. The owner accepts full responsibility for interim operation and maintenance of the facilities until such time as this responsibility is formally transferred to the HOA.
VI.B. Summary of Maintenance Requirements for Each Stormwater Facility Bioretention facilities capture runoff from downspouts or sheet flow from paved areas. The runoff briefly floods the surface of the box/basin and then percolates through an active soil layer to drain rock and underdrain system below. Routine maintenance consists of the following:
Examine downspouts from rooftops or sheet flow from paving to ensure that flow to the planter is unimpeded. Remove any debris and repair any damaged pipes. Check splash blocks or rocks and repair, replace, or replenish as necessary. Examine the overflow pipe to make sure it can safely convey excess flows to a storm drain.
Repair or replace any damaged or disconnected piping.
Check the underdrain piping to make sure it is intact and unobstructed. Observe the structure of the box and fix any holes, cracks, rotting, or failure. Check that the soil is at the appropriate depth to allow a reservoir above the soil surface and is sufficient to effectively filter stormwater. Remove any accumulation of sediment, litter, and debris. Till or replace soil as necessary. Confirm that soil is not clogging and that the planter will drain within 3-4 hours after a storm event. Determine whether the vegetation is dense and healthy. Replace dead plants. Prune or remove any overgrown plants or shrubs that may interfere with planter operation. Clean up fallen leaves or debris and replenish mulch. Remove any nuisance or invasive vegetation. Bioretention maintenance shall include watering, weeding, pruning, removal of invasive species, and plant replacement to support healthy plant establishment; plant debris and trash removal; and sediment removal from the forebay to maintain flow paths. If a facility is not functioning properly, maintenance may involve removing soil media and/or mulch to clean out sediment deposits.
Specific maintenance requirements, including frequency of each activity and length of contracted maintenance period, shall be detailed in contract documents with HOA, and include the following activities:
o Ensure irrigation is functioning properly. Look for evidence of broken pipes or sprinklers.
o Follow recommend pruning practices by plant type for timing and amount to remove.
o Refer to the Planting Plan in the design documents to identify and remove invasive weeds.
o Ensure maintenance inspection takes place immediately following storms with rainfall of 0.25 inches or more.
o Complete and submit inspection checklists and maintenance logs based on the specification requirements.
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The Village at 2092 Oakley Road Page 12 of 12 March 2023 VII. CONSTRUCTION PLAN C.3 CHECKLIST
Table 7. Construction Plan C.3 Checklist
STORMWATER
CONTROL PLAN
PAGE #
BMP DESCRIPTION
SEE
PLAN
SHEET
#
6 Dry well (IMP-1) will be designed to treat runoff and decrease the time of concentration before discharging to the storm drain system.
10 6
Bioretention basin (IMP-2) will be designed to treat runoff and decrease the time of concentration before discharging to the storm drain system.
10 7
Dry well (IMP-3) will be designed to treat runoff and decrease the time of concentration before discharging to the storm drain system.
10 8 & 9
(Source Control Table) On-site drain inlets to be marked with “No Dumping” message. - 8 & 9
(Source Control Table) Preservation (if any) of native trees, shrubs or ground cover. - 8 & 9
(Source Control Table)
Plant selection to minimize irrigation and use of fertilizer and pesticides—pest-resistant. -
VIII.CERTIFICATIONS
The selection, sizing, and preliminary design of stormwater treatment and other control measures in this plan meet the requirements of Regional Water Quality Control Board Order R2-2015-0049.
By
Print Name
1016
ATTACHMENT A
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Bioretention facilities capture runoff in a shallow reservoir on the soil surface, then filter the runoff through plant roots and a biologically active soil mix. The treated runoff then trickles into a subsurface gravel layer. Runoff is held in the gravel layer until it infiltrates it into the ground. If the entire gravel layer becomes saturated, an underdrain conveys excess treated runoff to a storm drain or to surface drainage.
%HVW8VHV
Commercial areas
Residential
subdivisions
Industrial facilities
Roadways
Parking lots
Fit in setbacks,
medians, and other
landscaped areas
$GYDQWDJHV
Can be any shape
Low maintenance
/LPLWDWLRQV
Require 4%-15% of
tributary impervious
square footage
Typically require 3-4
feet of head
Irrigation may be
required
Bioretention facilities can be rectangular, linear, or nearly any shape.
Photo by Scott Wikstrom
Stormwater C.3
Guidebook
www.cccleanwater.org
inflow overflow
to storm drain
Class 2 permeable
gravel
sand/compost mix
perforated pipe
underdrain
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See the guidance on page 28 regarding how to incorporate bioretention facilities into your site. Also see “Integrating Your LID Design into Your Project” on page 42.
Place bioretention facilities in visible, well-trafficked areas and make them a focal point in the landscape.
On flatter sites, use surface drainage, rather than
underground pipes, to convey runoff to the bioretention facility inlets. The top of soil elevation should be as high as possible—typically 6 to 12 inches below surrounding
grade.
Where possible, design site drainage so only impervious roofs and pavement drain to the bioretention facility.
Avoid high walls or steep slopes adjacent to bioretention facilities. Avoid side slopes within bioretention areas as much as possible. The bioretention soil mix will tend to rill even on very mild slopes (>8:1).
Integrate bioretention facilities with the landscape design. Make the bioretention facilities level around their
perimeter.
Where possible, grade tributary paved areas to sheet flow runoff and disperse it among curb cuts, rather than
concentrating flow at one inlet location.
Place each facility in a common, accessible area. Avoid locating facilities on private residential lots.
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For development projects subject only to UXQRII WUHDWPHQW UHTXLUHPHQWV, the following minimum dimensions apply.
Parameter Criterion
Surface reservoir mean depth 6" minimum
Soil mix surface area 0.04 times tributary impervious
area (or equivalent)
Soil mix depth 18" minimum
Gravel layer 12" min. Class 2 permeable
Underdrain discharge At top of gravel layer
1019
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Where IORZFRQWURO UHTXLUHPHQWV also apply, the
bioretention facility must be designed to meet the
minimum surface area (A), surface volume (V1), and
subsurface volume (V2) using Equation 3-3 and the
sizing factors and equations in Tables 3-6 and 3-7. The IMP Sizing Calculator should be used.
0LQLPXP VXEVXUIDFH YROXPH For treatment-andflow-control facilities the minimum subsurface volume V2 specified in Table 3-6 is the void space, not the entire volume of gravel. Where the native soils are Hydrologic Soil Group C or D, V2 may be achieved by a 30" deep layer of gravel RI SRURVLW\ extending under the minimum footprint “A”. Note that if the facility area is increased, the required depth to achieve the same volume is correspondingly decreased.
*UDYHO “Class 2 permeable,” Caltrans specification 68-
2.02(F)(3), is preferred. Open-graded crushed rock, washed, may be used, but requires 4"-6" washed pea gravel be
substituted at the top of the crushed rock layer. 'R QRWXVH ILOWHUIDEULF to separate the soil mix from the gravel drainage layer or the gravel drainage layer from the native soil.
If desired, voids created by buried structures such as pipes or arches, may be substituted, as long as the voids are
hydraulically interconnected and the minimum subsurface volume calculated by Equation 3-3 is achieved.
6RLOPL[ Criteria for the required mix of sand and compost are in Appendix B. It is similar to a loamy sand and must maintain a minimum percolation rate of 5" per hour
throughout the life of the facility. It must be suitable for maintaining plant life with a minimum of fertilizer use. A list of suppliers is on the C.3 web pages.
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,QOHWV Curb cuts should be wide (12" is recommended) to avoid clogging with leaves or debris. Allow for a minimum reveal of 6" between the inlet and soil mix elevations to ensure turf or mulch buildup does not block the inlet. In addition, place an apron of stone or concrete, a foot square or larger, inside each inlet to prevent vegetation from growing up and blocking the inlet.
If the linear slope along the curb is greater than the orthogonal slope of the gutter pan, runoff flows will not enter the inlet efficiently. Use a drop inlet with a grate instead.
Where runoff is concentrated and conveyed to the facility in pipes or swales, protect the landscaping from high-velocity $
9(ponding volume)
9(pore volume)
1020
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flows with energy-dissipating cobble of appropriate size. In larger installations, provide cobble-lined channels to better distribute flows throughout the facility.
“Bubble ups” can be used to dissipate energy when runoff is piped from roofs and up-gradient paved areas.
6XUIDFHVWRUDJHDQGRYHUIORZ For treatment-only facilities, the surface reservoir should be a minimum 6" deep. In
treatment-and-flow-control facilities, the overflow elevation must be set to achieve the minimum surface storage volume calculated using Equation 3-3 and the V1 sizing factor.
Ensure the soil mix is installed level and at the specified elevation, and that the elevation does not change when plants are installed.
2YHUIORZ VWUXFWXUH A precast concrete catch basin or
manhole is best. The overflow elevation is critical and must be designed to achieve the surface reservoir requirements. The outlet should be designed to exclude floating mulch and debris.
Design in IUHHERDUG if needed to prevent flooding or protect adjacent structures.
8QGHUGUDLQV Underdrains must have their discharge elevation set at the top of gravel layer elevation. Perforated pipe can be laid in a shallow groove dug across the top of the gravel layer, holes facing down, and connected to the overflow structure.
Underdrains must be constructed of rigid pipe (SDR 35 or equivalent) and provided with a cleanout.
)ORZFRQWURO RULILFH For treatment-and-flow-control
facilities, the underdrain must be routed through a device designed to limit flows to that specified in Equation 3-10 or 3- 11 (page 40). Typically, a section of solid pipe is designed to protrude slightly into the overflow structure. The pipe is threaded and fitted with a standard cap; a hole of the specified diameter is drilled into the cap. The cap can then be easily removed for cleaning or adjustment and reinstalled.
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0XOWLSXUSRVH ODQGVFDSHG DUHDVBioretention facilities are easily adapted to serve multiple purposes. The loamy sand soil mix will support either turf or a plant palette suitable to the location and a well-drained soil. See Appendix B for additional guidance on soil, plant selection, and
irrigation.
5HVLGHQWLDOVXEGLYLVLRQV In the design of
many subdivisions, it has proven easiest
and most effective to drain roofs and
driveways to the streets (in the
conventional manner) and then drain the
streets to bioretention areas, with one
bioretention area for each 1 to 10 lots,
depending on subdivision layout and
topography.
Bioretention areas can be placed on one or more separate, dedicated parcels with joint ownership.
6ORSHGVLWHV Bioretention facilities must be constructed as a basin or as a series of basins, with the circumference of each basin level.
On the surface, a bioretention facility should be one level, shallow basin—or a series of basins. As runoff enters each basin, it should flood and fill throughout before runoff overflows to the outlet or to the next downstream basin. This helps prevent movement of surface mulch and soil mix.
Swales can be used on mild slopes. Check dams should be placed every 4 to 6 inches of elevation change and so that the lip of each dam is at least as high as the toe of the next upstream dam.
Treatment Area
sand/compost mix
Class 2 permeable p
Native soil, no compaction
Swale with check dams. Not suitable for steeper slopes. Movement of soil can be a problem even at mild slopes. Design must ensure ponding behind each check dam.