Chemical: GROSS ALPHA MDA95 Report units: PCI/L
Sample date: 04-APR-12 Finding: 3.
Dlr: 0.
Chemical: GROSS ALPHA COUNTING ERROR Report units: PCI/L Sample date: 04-APR-12 Finding: 2.5
Dlr: 1.
Chemical: URANIUM (PCI/L) Report units: PCI/L
Sample date: 04-APR-12 Finding: 3.5
Dlr: 0.4
Chemical: NITRATE + NITRITE (AS N) Report units: MG/L
Sample date: 17-MAY-12 Finding: 3800.
Dlr: 0.
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
7.d
Packet Pg. 1350 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction TC5726802.2s Page A-36
Comment 7: Not Reported
Comment 5: Not Reported Comment 6: Not Reported
Comment 3: Not Reported Comment 4: Not Reported
Comment 1: Not Reported Comment 2: Not Reported
Precision: 3 Status: AR
Latitude: 340230.0 Longitude: 1172000.0
Source nam: LINDA VISTA 01 Station ty: WELL/AMBNT
System no: 3610057 Water type: G
District: 13 User id: TAN
Frds no: 3610057001 County: 36
Seq: 971 Prim sta c: 01S/04W-32M01 S
11 NNW
1/2 - 1 Mile
Lower
CA WELLS 971
Area serve: GRAND TERR/HIGHGROVE-RIVERSIDE
Pop serv: 14542 Connection: 3873
Zip: 92324 Zip ext: Not Reported
City: COLTON State: CA
Hqname: Not Reported Address: 1450 WASHINGTON ST
System no: 3610057 System nam: RIVERSIDE HIGHLAND WATER CO Comment 7: Not Reported
Comment 5: Not Reported Comment 6: Not Reported
Comment 3: Not Reported Comment 4: Not Reported
Comment 1: Not Reported Comment 2: Not Reported
Precision: 3 Status: IR
Latitude: 340230.0 Longitude: 1171930.0
Source nam: LINDA VISTA 02 - INACTIVE Station ty: WELL/AMBNT System no: 3610057 Water type: G
District: 13 User id: TAN
Frds no: 3610057002 County: 36
Seq: 970 Prim sta c: 01S/04W-32M00 S
A10
NNE
1/2 - 1 Mile
Lower
CA WELLS 970
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 242
Construction Date: 19540101 Well Depth: 242
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32E010S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
B9
North
1/2 - 1 Mile
Lower
FED USGS USGS40000139996
Map ID
Direction
Distance
Elevation Database EDR ID Number
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
7.d
Packet Pg. 1351 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction TC5726802.2s Page A-37
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 170
Construction Date: 19260101 Well Depth: 170
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32E003S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
C14
North
1/2 - 1 Mile
Lower
FED USGS USGS40000140013
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 346
Construction Date: 19540101 Well Depth: 312
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32E009S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
B13
NNE
1/2 - 1 Mile
Lower
FED USGS USGS40000140006
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 388
Construction Date: 19420101 Well Depth: 388
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32E008S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
B12
North
1/2 - 1 Mile
Lower
FED USGS USGS40000140007
Area serve: GRAND TERR/HIGHGROVE-RIVERSIDE
Pop serv: 14542 Connection: 3873
Zip: 92324 Zip ext: Not Reported
City: COLTON State: CA
Hqname: Not Reported Address: 1450 WASHINGTON ST
System no: 3610057 System nam: RIVERSIDE HIGHLAND WATER CO GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
7.d
Packet Pg. 1352 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction TC5726802.2s Page A-38
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 209
Construction Date: 19200101 Well Depth: 209
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32E006S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
D17
NNE
1/2 - 1 Mile
Lower
FED USGS USGS40000140019
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 191
Construction Date: 19240101 Well Depth: 186
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32E005S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
E16
North
1/2 - 1 Mile
Lower
FED USGS USGS40000140023
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 363
Construction Date: 19290101 Well Depth: 307
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32E007S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
D15
NNE
1/2 - 1 Mile
Lower
FED USGS USGS40000140012
Map ID
Direction
Distance
Elevation Database EDR ID Number
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
7.d
Packet Pg. 1353 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction TC5726802.2s Page A-39
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 194
Construction Date: 19240101 Well Depth: 191
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32E001S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
20 North
1/2 - 1 Mile
Lower
FED USGS USGS40000140045
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 200
Construction Date: 19620101 Well Depth: 190
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32E012S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
E19
North
1/2 - 1 Mile
Lower
FED USGS USGS40000140041
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 194
Construction Date: 19260101 Well Depth: 191
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32E002S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
C18
North
1/2 - 1 Mile
Lower
FED USGS USGS40000140028
Map ID
Direction
Distance
Elevation Database EDR ID Number
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
7.d
Packet Pg. 1354 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction TC5726802.2s Page A-40
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 112
Construction Date: Not Reported Well Depth: 112
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32G002S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
F23
NE
1/2 - 1 Mile
Lower
FED USGS USGS40000140021
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 162
Construction Date: Not Reported Well Depth: 162
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32G001S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
F22
NNE
1/2 - 1 Mile
Lower
FED USGS USGS40000140022
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 239
Construction Date: 19070101 Well Depth: 239
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32Q001S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
21 East
1/2 - 1 Mile
Higher
FED USGS USGS40000139953
Map ID
Direction
Distance
Elevation Database EDR ID Number
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
7.d
Packet Pg. 1355 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction TC5726802.2s Page A-41
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 264
Construction Date: 19310101 Well Depth: 229
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32B001S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
26 NNE
1/2 - 1 Mile
Lower
FED USGS USGS40000140054
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 140
Construction Date: 19060101 Well Depth: 140
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32G004S Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
G25
NE
1/2 - 1 Mile
Lower
FED USGS USGS40000140027
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 81
Construction Date: 19410101 Well Depth: 69
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W31A00AS Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
24 North
1/2 - 1 Mile
Lower
FED USGS USGS40000140084
Map ID
Direction
Distance
Elevation Database EDR ID Number
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
7.d
Packet Pg. 1356 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction TC5726802.2s Page A-42
Well Hole Depth Units: ft
Well Depth Units: ft Well Hole Depth: 192
Construction Date: 19340101 Well Depth: 172
Formation Type: Not Reported Aquifer Type: Not Reported Aquifer: California Coastal Basin aquifers
Contrib Drainage Area: Not Reported Contrib Drainage Area Unts: Not Reported Drainage Area: Not Reported Drainage Area Units: Not Reported Description: Not Reported HUC: 18070203
Monitor Location: 001S004W32G00AS Type: Well
Organization Name: USGS California Water Science Center Organization ID: USGS-CA
G27
NE
1/2 - 1 Mile
Lower
FED USGS USGS40000140051
Map ID
Direction
Distance
Elevation Database EDR ID Number
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
7.d
Packet Pg. 1357 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction TC5726802.2s Page A-43
Basement Not Reported Not Reported Not Reported Not Reported Living Area - 2nd Floor Not Reported Not Reported Not Reported Not Reported Living Area - 1st Floor 0.000 pCi/L 100% 0% 0%
Area Average Activity % <4 pCi/L % 4-20 pCi/L % >20 pCi/L Number of sites tested: 1
Federal Area Radon Information for Zip Code: 92324
: Zone 3 indoor average level < 2 pCi/L.
: Zone 2 indoor average level >= 2 pCi/L and <= 4 pCi/L.
Note: Zone 1 indoor average level > 4 pCi/L.
Federal EPA Radon Zone for SAN BERNARDINO County: 2
92324 10 0
______ ________ ________
Zipcode Num Tests > 4 pCi/L
Radon Test Results
State Database: CA Radon
AREA RADON INFORMATION
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS
RADON
®
7.d
Packet Pg. 1358 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
TOPOGRAPHIC INFORMATION
USGS 7.5’ Digital Elevation Model (DEM)
Source: United States Geologic Survey
EDR acquired the USGS 7.5’ Digital Elevation Model in 2002 and updated it in 2006. The 7.5 minute DEM corresponds to the USGS 1:24,000- and 1:25,000-scale topographic quadrangle maps. The DEM provides elevation data with consistent elevation units and projection.
Current USGS 7.5 Minute Topographic Map
Source: U.S. Geological Survey
HYDROLOGIC INFORMATION
Flood Zone Data: This data was obtained from the Federal Emergency Management Agency (FEMA). It depicts 100-year and 500-year flood zones as defined by FEMA. It includes the National Flood Hazard Layer (NFHL) which incorporates Flood Insurance Rate Map (FIRM) data and Q3 data from FEMA in areas not covered by NFHL.
Source: FEMA
Telephone: 877-336-2627
Date of Government Version: 2003, 2015
NWI: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDR in 2002, 2005 and 2010 from the U.S. Fish and Wildlife Service.
State Wetlands Data: Wetland Inventory
Source: Department of Fish and Wildlife
Telephone: 916-445-0411
HYDROGEOLOGIC INFORMATION
AQUIFLOW Information System R
Source: EDR proprietary database of groundwater flow information EDR has developed the AQUIFLOW Information System (AIS) to provide data on the general direction of groundwater flow at specific points. EDR has reviewed reports submitted to regulatory authorities at select sites and has extracted the date of the report, hydrogeologically determined groundwater flow direction and depth to water table information.
GEOLOGIC INFORMATION
Geologic Age and Rock Stratigraphic Unit
Source: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology of the Conterminous U.S. at 1:2,500,000 Scale - A digital representation of the 1974 P.B. King and H.M. Beikman Map, USGS Digital Data Series DDS - 11 (1994).
STATSGO: State Soil Geographic Database
Source: Department of Agriculture, Natural Resources Conservation Service (NRCS) The U.S. Department of Agriculture’s (USDA) Natural Resources Conservation Service (NRCS) leads the national Conservation Soil Survey (NCSS) and is responsible for collecting, storing, maintaining and distributing soil survey information for privately owned lands in the United States. A soil map in a soil survey is a representation of soil patterns in a landscape. Soil maps for STATSGO are compiled by generalizing more detailed (SSURGO) soil survey maps.
SSURGO: Soil Survey Geographic Database
Source: Department of Agriculture, Natural Resources Conservation Service (NRCS) Telephone: 800-672-5559
SSURGO is the most detailed level of mapping done by the Natural Resources Conservation Service, mapping scales generally range from 1:12,000 to 1:63,360. Field mapping methods using national standards are used to construct the soil maps in the Soil Survey Geographic (SSURGO) database. SSURGO digitizing duplicates the original soil survey maps. This level of mapping is designed for use by landowners, townships and county natural resource planning and management.
TC5726802.2s Page PSGR-1
PHYSICAL SETTING SOURCE RECORDS SEARCHED
7.d
Packet Pg. 1359 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
LOCAL / REGIONAL WATER AGENCY RECORDS
FEDERAL WATER WELLS
PWS: Public Water Systems
Source: EPA/Office of Drinking Water
Telephone: 202-564-3750
Public Water System data from the Federal Reporting Data System. A PWS is any water system which provides water to at least 25 people for at least 60 days annually. PWSs provide water from wells, rivers and other sources.
PWS ENF: Public Water Systems Violation and Enforcement Data Source: EPA/Office of Drinking Water
Telephone: 202-564-3750
Violation and Enforcement data for Public Water Systems from the Safe Drinking Water Information System (SDWIS) after August 1995. Prior to August 1995, the data came from the Federal Reporting Data System (FRDS).
USGS Water Wells: USGS National Water Inventory System (NWIS) This database contains descriptive information on sites where the USGS collects or has collected data on surface water and/or groundwater. The groundwater data includes information on wells, springs, and other sources of groundwater.
STATE RECORDS
Water Well Database
Source: Department of Water Resources
Telephone: 916-651-9648
California Drinking Water Quality Database
Source: Department of Public Health
Telephone: 916-324-2319
The database includes all drinking water compliance and special studies monitoring for the state of California since 1984. It consists of over 3,200,000 individual analyses along with well and water system information.
OTHER STATE DATABASE INFORMATION
California Oil and Gas Well Locations
Source: Department of Conservation
Telephone: 916-323-1779
Oil and Gas well locations in the state.
California Earthquake Fault Lines
Source: California Division of Mines and Geology
The fault lines displayed on EDR’s Topographic map are digitized quaternary fault lines prepared in 1975 by the United State Geological Survey. Additional information (also from 1975) regarding activity at specific fault lines comes from California’s Preliminary Fault Activity Map prepared by the California Division of Mines and Geology.
RADON
State Database: CA Radon
Source: Department of Public Health
Telephone: 916-210-8558
Radon Database for California
Area Radon Information
Source: USGS
Telephone: 703-356-4020
The National Radon Database has been developed by the U.S. Environmental Protection Agency (USEPA) and is a compilation of the EPA/State Residential Radon Survey and the National Residential Radon Survey.
The study covers the years 1986 - 1992. Where necessary data has been supplemented by information collected at private sources such as universities and research institutions.
TC5726802.2s Page PSGR-2
PHYSICAL SETTING SOURCE RECORDS SEARCHED
7.d
Packet Pg. 1360 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction EPA Radon Zones
Source: EPA
Telephone: 703-356-4020
Sections 307 & 309 of IRAA directed EPA to list and identify areas of U.S. with the potential for elevated indoor radon levels.
OTHER
Airport Landing Facilities: Private and public use landing facilities Source: Federal Aviation Administration, 800-457-6656
Epicenters: World earthquake epicenters, Richter 5 or greater Source: Department of Commerce, National Oceanic and Atmospheric Administration California Earthquake Fault Lines: The fault lines displayed on EDR’s Topographic map are digitized quaternary fault lines, prepared in 1975 by the United State Geological Survey. Additional information (also from 1975) regarding activity at specific fault lines comes from California’s Preliminary Fault Activity Map prepared by the California Division of Mines and Geology.
STREET AND ADDRESS INFORMATION
© 2015 TomTom North America, Inc. All rights reserved. This material is proprietary and the subject of copyright protection and other intellectual property rights owned by or licensed to Tele Atlas North America, Inc. The use of this material is subject to the terms of a license agreement. You will be held liable for any unauthorized copying or disclosure of this material.
TC5726802.2s Page PSGR-3
PHYSICAL SETTING SOURCE RECORDS SEARCHED
7.d
Packet Pg. 1361 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
APPENDIX F
CREDENTIALS
7.d
Packet Pg. 1362 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Resume
Laura Hedman
Staff Geologist
PROFESSIONAL EXPERIENCE
Ms. Hedman is a staff geologist in Terracon’s Colton, CA office, Environmental Department. Ms. Hedman’s professional experience includes Environmental Services, Phase I Environmental Site Assessments (ESAs), Limited Site Investigations (LSIs), soil and groundwater sampling, and groundwater monitoring projects. She has conducted site assessments on office facilities, warehouses, manufacturing facilities, automotive dealerships, restaurants, medical offices, telecommunication towers, vacant, and agricultural land. She prepares environmental site assessment reports; researches city directories and regulatory agency files; and reviews aerial photographs and topographic maps. In addition, she assists the Senior Project Manager in Phase I Environmental Site Assessments.
PROJECT EXPERIENCE
Office Buildings/Medical Office Building – California
Project Manager and Environmental Site Assessments on office properties, which includes multi-story financial, educational, medical office buildings, and a 95,000-square-foot community hospital.
Warehouse Buildings/Logistical Centers – California
Project Manager and Environmental Site Assessment on warehouses and logistical centers, which includes commercial facilities with 1.2 million-square-foot warehousing space.
Restaurants/Retail Buildings – California
Project Manager and Environmental Site Assessment on family-style restaurants, and retail lease spaces.
Auto Dealership/Automotive Service– California
Project Manager and Environmental Site Assessment on automotive dealerships, automotive maintenance facilities, and automotive collision repair centers.
Undeveloped/Vacant/Agricultural – California
Project Manager and Environmental Site Assessments on undeveloped, vacant, and agricultural land; from less than one-acre- to over 200-acre parcel of land.
EDUCATION
Bachelor of Science, Geology/Earth
Science, University of California,
Riverside, 2016
Mount San Jacinto College
Associate of Science, Geographic
Information Systems (GIS), May
2014
CERTIFICATIONS
Geologist in Training (Fundamental
of Geology), June 2017
PROFESSIONAL TRAINING
40-Hour HAZWOPER
Asbestos Building Inspector Initial
Course, May 2019
WORK HISTORY
Terracon, Colton, California
Staff Geologist
January 2018 to Present
United States Army, Master
Sergeant, Retired;
Recruiting Battalion Operations
Senior NonCommissioned Officer/
Senior Career Counselor
August 1988 to February 2011
7.d
Packet Pg. 1363 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Carl A. Parten
Office Manager, Senior Principal
PROFESSIONAL EXPERIENCE
Mr. Parten has 32 years of experience in environmental consulting in multiple regional regulatory districts throughout the United States. His professional experience includes comprehensive site investigations and remediation studies for Industrial and Hazardous Waste sites, municipal solid waste landfill sites and underground storage tank (UST) facilities.
He has successfully managed and obtained regulatory closure of over 30 Voluntary Cleanup Program (VCP) sites and leaking underground storage tank (LUST) facilities, and coordinated UST removal and closure for numerous facilities in multiple states throughout the United States. Mr. Parten continues to serve as a technical lead with Terracon and he possesses extensive experience in the installation of monitor wells, aquifer characterization, sensitive receptor surveys, risk-based assessments, vapor intrusion (VI) evaluations, and soilgas assessments. Additionally, he has extensive experience in comprehensive soil and groundwater investigations on industrial facilities and municipal solid waste (MSW) landfill facilities, including evaluation of landfill gas/methane impacts. He has prepared and implemented corrective action work plans for remediation of chlorinated hydrocarbons at dry cleaner facilities and petroleum hydrocarbons at LUST facilities, MSW landfill facilities, and managed and implemented groundwater pump and treat, non-aqueous phase liquid (NAPL) recovery, and duel-phase vapor extraction systems for the recovery of petroleum hydrocarbons. Additionally, Mr. Parten developed work plans and implemented the remediation of heavy metals and poly-nuclear aromatic hydrocarbons (PAHs).
PROJECT EXPERIENCE
Kaiser Permanente, AV Behavioral Health, Lancaster, California Provided QA/QC for the Phase I ESA for the potential Kaiser Permanente AV Behavioral Health Building that consisted of a 29,245-square-foot (SF) single-story building with a mezzanine, in a multi-tenant commercial/retail shopping center on an approximately
6.12-acre parent tract. Our scope of services included the site
EDUCATION
Bachelor of Science, Geology, Sul
Ross State University, Alpine,
Texas, 1994
Additional Courses:
University of Houston TCEQ Texas
Risk Reduction Program: Mod. I, II,
and III
Roadmap to Remediation
CAPM Refresher Course, Texas
A&M University
TNRCC Hazardous Waste Seminar
TNRCC PST Risk Assessments
Seminar
TNRCC Pollution Prevention
Workshop
API Risk/Exposure Assessment
Contaminant Fate and Transport
Modeling in Risk Assessment
Environmental Hydrology / Soil
Science
REGISTRATIONS
Licensed Professional Geoscientist
(P.G.), I.D. # 221, Texas Board of
Professional Geoscientists 2003
(current)
Registered Professional Geologist
(P.G.), I.D. # 004037; State of
Tennessee, May 1996 (current)
TCEQ Corrective Action Project
Manager, CAPM #01091 (current)
40 Hour OSHA Hazardous Waste
Site & Waste Management Training
AFFILIATIONS
BDA/Orange County
Groundwater Resource Assoc.
Geological Society of America
7.d
Packet Pg. 1364 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction reconnaissance and soil and soil vapor sampling. Provided QA/QC review of the report before we sent it to the client.
Kaiser Permanente, Primary Care Medical Office Building, Wildomar, California Project Manager for the Phase I ESA for the potential Kaiser Permanente Primary Care Medical Office Building consisted of an approximately 36-acre tract of generally vacant land. Provided QA/QC review of the report before we sent it to the client.
Industrial Warehouse Facility – La Palma, California
Phase I ESA, comprehensive subsurface investigation and delineation of volatile organic compounds (VOCs), petroleum hydrocarbons TPH) in soil, groundwater and vapor to characterize environmental site conditions and development of response actions. Soil remediation, soil vapor extraction of VOCs, and waste characterization/disposal of impacted environmental media at a large warehouse facility. Active monitoring and additional response actions are on-going. Consulting services included preparation of investigation reports, response action work plans, client interaction and litigation support.
Industrial Warehouse Facility / Demolition / Soil Management – Los Angeles / Union Crossing - California
Phase I ESA, Limited Site Investigation, soil management plan / remediation of impacted soils, underground storage tank / structures management and support services, investigation and delineation of volatile organic compounds (VOCs), petroleum hydrocarbons TPH) in soil, and waste characterization and disposal of impacted environmental media. Consulting services included preparation of investigation reports, response action work plans, client interaction and construction management support.
Industrial Facility – Union City, California
Subsurface investigation and delineation of heavy metals and polynuclear aromatic hydrocarbons (PAHs) in soil to facilitate the development of response actions and waste characterization/disposal of impacted environmental media at a large industrial facility with over sixty years of operations. Consulting services included preparation of investigation reports, response action work plans, and client/regulatory interaction.
Industrial Facility – Land-use Change/Private School, Los Angeles, CA Environmental consulting services including Phase I Environmental Site Assessments (ESA) due diligence support, subsurface investigation activities to evaluate environmental media including soil, groundwater, soil gas and indoor / outdoor air. Services included a land-use change from an industrial facility to a private school. Prepared environmental investigation reports, regulatory interaction, corrective action design and work plan for management of environmental media.
USARC Facility – Mare Island, California
Environmental team leader for evaluation of an existing 32-acre military facility, Mare Island in California.
The teaming effort included the preparation of a Technical Assessment report on the facility to provide
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Packet Pg. 1365 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction USAR a decision making and programming tool to establish future restoration and replacement upgrades to the facility. The report included an evaluation of existing conditions of the site and facilities with respect to current mission and identified construction costs required to comply with USAR facility standards, AntiTerrorism/Force Protection requirements, handicapped accessibility regulations, and current building codes. Conceptual costs for related improvements and environmental mitigation were presented.
Major Department Store Commercial Retail Portfolio
Environmental team lead for evaluating environmental site conditions and due diligence review, including overseeing Phase I Environmental Site Assessments and Phase II Environmental Site Investigations for over fifty retail facilities with automotive maintenance across California. Findings from subsurface investigations were used to support regulatory closure of select facilities to facilitate a real estate transaction across the United States.
Automated Fuel Dispensing Facilities – Camp Pendleton, California Project scope included environmental and geotechnical investigations at six fueling existing/proposed facilities within Camp Pendleton, California. The project consisted of construction of new buildings, canopies, pavements, retaining walls, slopes, and installation of underground storage tanks (USTs), and other site facilities. Served as the primary client point of contact and environmental technical leader.
Mixed-Use High-rise Building, West Hollywood, California Conducted comprehensive investigation and assisted the client through enrolling and interacting with the DTSC / VCP regarding chlorinated solvent and heavy metal-impacted soil and groundwater. Provided construction management oversight to manage impacted soils and assisted the client in waste disposition, permitting and regulatory compliance interaction. A total of 52,000 cubic yards of soil was removed from the site and disposed at an off-site facility, prior to the construction of a $170M high-rise multi-use complex. Terracon’s support services allowed for significant savings in construction, on an expedited timeline in concert with the construction schedule.
Underground Storage Tank and Soil Remediation – Regional Water Board, Squaw Valley, CA Terracon assisted a private developer with the regulatory closure of an underground storage tank (UST) site located in Squaw Valley, California. The abandoned 10,000-gallon UST was responsible for a release of heavy waste oils to the ground surface and banks of a creek. Following disposal of the UST, approximately 70 cubic yards of petroleum-impacted soils were excavated and properly disposed.
Interaction with the Regional Water Board and Public Notification resulted in the issuance of case closure.
Retail Shopping Center – Former Dry Cleaners Facility – DTSC, Fremont, CA Conducted extensive site investigation activities to evaluate the magnitude and extent of chlorinated solvents identified in the vicinity of a former dry cleaners’ facility, including an evaluation of groundwater, soil, soil-gas and indoor vapors as a result of a chlorinated solvent plume. Mr. Parten provided direct support and interaction with client, client legal team and DTSC representatives to manage the closure
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Packet Pg. 1366 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction process, including the preparation of work plans and environmental investigation reports, risk-based human health evaluation, and response actions.
Soil Remediation – Riverside County Regulatory Oversight, Telecommunications Site, Perris, CA Terracon assessed the magnitude and extent of a surficial release of petroleum hydrocarbons, developed a work plan, approved by overseeing agency, and conducted remediation, removal and legal disposal of 80 cubic yards of non-hazardous soil.
Municipal Landfill – VCP Site
Successfully oversaw and managed the engineering design and construction quality assurance for the closure and restoration of a high-profile MSW landfill in accordance with regulatory standards, subsequent to significant investigation activities. The remedy consisted of removal and consolidation of wastes and construction of LFG recovery trenches to prevent migration of landfill gas. The remedy utilized engineering controls and removal of impacted media. Project management responsibilities included coordination with Local, State and Federal officials, public/neighborhood communications, and interaction with attorneys, and management of project budgets that exceeded $4.5 million over seven years.
Terracon continues to provide post closure care monitoring and O&M for the site.
Department of Transportation Contract - TX
Successfully managed a two-year environmental services contract with the Texas Department of Transportation (TxDOT) and coordinated multiple Terracon offices to provide geographic coverage of environmental consulting service throughout Texas. Mr. Parten was the liaison to TxDOT for the performance of environmental consulting services, and provided senior technical review of environmental investigations, Phase I ESAs, removal of underground storage tanks, remediation of affected media and waste management, asbestos and lead-based paint investigations, and management of financial metrics and budgets in strict conformance with negotiated fees and procedures under a $2,000,000 contract.
City-Operated LUST Facilities
Provided senior project management of 14 City operated LUST facilities through coordination of investigation, regulatory reporting and response actions in the pursuit of closure. Mr. Parten was responsible for managing all site activities, evaluation of data, reporting, communicating with local and state officials, and management of budget and schedule requirements.
Municipal Property
Provided senior project management and technical review of several properties, including the remediation of metals and PAH-impacted soils, using a combination of excavation and removal and inplace stabilization. Work was performed under the EPA Brownfields Program and the Voluntary Cleanup Program. The $1.2 million-dollar remediation project was part of a high-profile downtown parks and recreation redevelopment project that successfully established LEED Certified public parks in areas once occupied by commercial and industrial property. Mr. Parten was responsible for managing all site
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Packet Pg. 1367 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction activities, evaluation of data, reporting, communicating with local and state officials, and management of budget and schedule requirements.
Retail Shopping Center – VCP Site
Conducted extensive site investigation activities to evaluate the magnitude and extent of chlorinated solvents identified in the vicinity of a former dry cleaners’ facility. The chlorinated solvent plume was defined to drinking water standards and was delineated to a creek channel nearly 1,200 feet from the source property. Based on site investigation results, assisted the property owner in entering the site into the VCP, and managed and implemented response actions and treatment of affected media utilizing a combination of source-removal/excavation (750 cubic yards) within the building interiors, hydrogenreleasing compound (HRC®) treatment of backfill, and HRC injection into the underlying soil and groundwater across the site. Treatment technology effectively remediated affected soils and significantly reduced contaminant levels within the on-site source areas. Additional response actions were conducted to reduce on-site groundwater contamination levels through HRC injection at over 250 locations.
Monitored natural attenuation and groundwater monitoring was performed for a period of approximately four years. Mr. Parten assisted the client in the establishment of a deed restriction (Municipal Setting Designation) that restricted the use of groundwater on the site. Mr. Parten interacted with City and State officials and prepared and submitted multiple reports documenting site activities and managed a project budget totaling $1,200,000.
Additional Project Experience
Under the direction and senior technical review by Mr. Parten, final site closure has been obtained for over thirty VCP, Innocent Owner/Operator Program, LUST, and Industrial and Hazardous Waste facilities in multiple states across the United States. Additionally, Mr. Parten has coordinated and managed the removal of dozens of underground storage tank (UST) systems and remediation of contaminated soil and groundwater. Mr. Parten has provided expert testimony on multiple projects and is a primary point of contact interacting with environmental attorneys and regulatory agencies.
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Packet Pg. 1368 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Todd G. McFarland, PG, CHG
DEPARTMENT MANAGER
PROFESSIONAL EXPERIENCE
Mr. McFarland has over 19 years of experience as a professional geologist and hydrogeologist, in over 200 site characterization and remediation projects throughout California. He is an environmental Department Manager for Terracon’s Colton office.
Mr. McFarland has been involved with geotechnical investigations, well design and construction, aquifer testing, Phase I and II ESAs, including agricultural, petroleum, and industrial properties; and remediation mitigation for commercial, industrial and LUST/LUFT projects. Mr. McFarland’s expertise includes hydrogeology, contaminant transport in soil and groundwater, soil and groundwater remediation, and California UST Cleanup Fund regulations for commercial properties, government agencies and major oil companies.
His areas of expertise includes Phase I & II Environmental Assessments, Hazardous Waste Site Investigations, LUST/LUFT Site Investigation and Remediation (soil, vapor, and groundwater) Hydrogeology, Contaminant Fate & Transport, Well Design and Construction, Remedial Strategy and Design, California UST Cleanup Fund and Triad Approach Investigation Methods.
PROJECT EXPERIENCE
Charis Corporation/US Army, Aquifer and Well Evaluation, Fort Irwin, California Project Geologist for the identification, assessment and testing of domestic and agricultural wells associated with the expansion of Ft. Irwin military base. Responsible for field mapping, staff and logistics coordination, subcontractor management, well pumping, mine shaft mapping and collection of samples for heavy metal analytical testing.
Bechtel, Mountain View Power Plant Expansion Project, Loma Linda, California Project Geologist support for pump test and analytical testing of new production well within the Bunker Hill Basin. Sampling and testing of water for Title 22, perchlorate and TCE to determine well viability, and ability to discharge surplus water to Santa Ana River.
Herzog, Rail Line Rehabilitation Project, San Bernardino, California Project Geologist for compliance monitoring, soil sampling and remediation management of soils during rail line rehabilitation. Project work conducted for BNSF under their oversight and safety management guidelines. Managed daily soil screening, mobile laboratory analysis oversight and directed soil excavation and segregation for offsite disposal of hydrocarbon and solvent impacted soils.
Amtrak, 8th Street Amtrak Yard ROW Investigation, Los Angeles, California Project Geologist for Phase I & II assessments along ROWs within the active rail yard for proposed ROW exchange. Project work included drilling and soil sampling adjacent to active rail lines associated with train maintenance and wash rack. Reporting and recommendations for soil remediation options.
EDUCATION
Bachelor of Science, Hydrogeology,
Northern Arizona University, 1998
AA, Art/Architecture, Pasadena City
College, 1992
REGISTRATIONS
California Professional Geologist, PG
#7685
California Certified Hydrogeologist,
CHG #979
CERTIFICATIONS
GIS Certification, University of
California, Riverside, 2017
40-Hour OSHA Hazardous Materials
Training
8-Hour OSHA Supervisory and
Confined Space Training
8-Hour LPS/OSHA Refresher
(current)
CPR/First Aid Certified (current)
LPS 8-Hour Training Certification,
5/2006
16-Hour Chevron EMC CSOC
Training, 11/2007
Defensive Driving Course, 6/2006
DOT-Basic HazMat Training, 5/2007
Title 22 California-Hazardous Waste
Generator Training, 5/2007
Lean Six Sigma Training, 3/2011
Cost Engineering and Cost Loaded
Scheduling and Training, 4/2011 &
3/2012
WORK HISTORY
Terracon Consultants, Inc.,
Department Manager, 2018-Present
AECOM, Sr. Project Manager/Sr.
Hydrogeologist, 2013-2018
HFA, Sr. Geologist/Sr. Project
Manager, 2009-2013, Assoc.
Geologist/Sr. Geologist/Project
Manager/Office Manager, 2004-2009
Geo-Cal, Inc., Project Geologist,
2003 – 2004
CHJ, Inc., Staff Geologist, 1998-2003
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Packet Pg. 1369 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Chevron and ExxonMobil, Service Station and Terminal Facility Management, Southern and Northern California Project/Senior Geologist and Project Manager for portfolio of underground storage tank facilities. Managed schedule, costs and project work for numerous retail service station and bulk tank facilities. Scoped and executed assessment and remedial efforts targeted to model and remove contaminants. Geological logging and drilling oversight for the installation of numerous shallow and deep monitoring wells within unconsolidated and over-consolidated soils. Develop and execute aquifer, soil vapor extraction, and air sparge testing to determine feasibility of remedial options. Prepare conceptual site models to evaluate project data and develop remedial action plans and human health risk assessments. Collaborate with engineers to design, build and execute remedial systems for treatment of petroleum impacted soil and groundwater. Responsible for direct interaction with client and regulators to develop and execute strategies.
Chevron EMC, MTBE Groundwater Plume Investigation and Remediation, San Juan Capistrano California Senior Geologist and Project Manager for two underground storage tank facilities that allegedly affected the City’s water production supply. Scoped and executed assessment and remedial efforts targeted to model and remove benzene and MTBE. Installed and operated in-situ soil and groundwater remedial systems. Geological logging and drilling oversight for the installation of numerous shallow and deep monitoring and remediation wells. Testing and evaluation of City’s production wells. Attend and participate in public hearings, plan and participate in planning and design review meetings. Conduct client meetings and provide project details to client’s legal team.
Confidential Client, Crafton-Redlands Perchlorate Plume Investigation, Mentone, California Project Geologist for underground storage tank facility. Geological logging and drilling oversight for the installation of deep monitoring wells within the Crafton-Redlands Plume using rotary casing hammer and sonic drilling rigs. Collection of soil and groundwater samples to evaluation aquifer for petroleum hydrocarbons, including MTBE and perchlorate. Conduct soil vapor extraction pilot testing for in-situ soil remediation of hydrocarbon impacts.
City of Rialto, Landfill Investigation and Post-Closure Monitoring, Rialto, California. Project Geologist for landfill closure and post-closure investigations and monitoring. On going monitoring of water quality beneath and surrounding the boundary limits of landfill. Statistical analysis and reporting of water quality data to determine trends and stability postclosure.
City of Los Angeles, Community Park Development, Lead Removal, California Project Geologist for development of a community park. Planned, coordinated, and conducted assessment and remediation of aerial deposited lead within a residential community. Conducted lead dust monitoring, excavation activities and verification sampling and reporting.
Confidential Client, Federal Social Security Building Development, San Bernardino, California Project Geologist for compliance monitoring and soil sampling during over-excavation of unpermitted landfill from the 1920’s.
Soil sampling/analysis, soil management and excavation of lead-impacted soils.
City of Blythe, Citywide Commingled Plume Investigation, Blythe, California Project Manager for city wide commingled plume assessment and remedial cleanup of 7 commingled plumes (over 30 individual sites) related to petroleum releases to groundwater. Conducted large-scale site assessment, well installation and remedial actions including soil vapor extraction, dual-phase extraction, free-product extraction and soil excavation. Managed complex financial contract and UST Cleanup Fund reimbursement. Responsible for direct interaction with client (City), UST Cleanup Fund and California’s Water Board to develop and execute strategies.
AFCEC, Industrial Waste Line Removal and Vapor Intrusion Risk Assessment, Former Norton Air Force Base, San Bernardino, California
Senior hydrogeologist for evaluation of soil and soil vapor sampling. Conducted closure report review, human health risk assessment modeling and evaluation, and closure recommendations. Evaluation and reporting resulted in obtaining closure from DTSC.
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Packet Pg. 1370 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
APPENDIX G
DESCRIPTION OF TERMS AND ACRONYMS
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Packet Pg. 1371 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Description of Selected General Terms and Acronyms
Term/Acronym Description
ACM
Asbestos Containing Material. Asbestos is a naturally occurring mineral, three varieties of which (chrysotile, amosite, crocidolite) have been commonly used as fireproofing or binding agents in construction materials. Exposure to asbestos, as well as ACM, has been documented to cause lung diseases including asbestosis (scarring of the lung), lung cancer and mesothelioma (a cancer of the lung lining).
Regulatory agencies have generally defined ACM as a material containing greater that one (1) percent asbestos, however some states (e.g. California) define ACM as materials having 0.1% asbestos. In order to define a homogenous material as non-ACM, a minimum number of samples must be collected from the material dependent upon its type and quantity. Homogenous materials defined as nonACM must either have 1) no asbestos identified in all of its samples or 2) an identified asbestos concentration below the appropriate regulatory threshold. Asbestos concentrations are generally determined using polarized light microscopy or transmission electron microscopy. Point counting is an analytical method to statistically quantify the percentage of asbestos in a sample. The asbestos component of ACM may either be friable or non-friable. Friable materials, when dry, can be crumbled, pulverized, or reduced to powder by hand pressure and have a higher potential for a fiber release than non-friable ACM. Non-friable ACM are materials that are firmly bound in a matrix by plastic, cement, etc. and, if handled carefully, will not become friable.
Federal and state regulations require that either all suspect building materials be presumed ACM or that an asbestos survey be performed prior to renovation, dismantling, demolition, or other activities that may disturb potential ACM. Notifications are required prior to demolition and/or renovation activities that may impact the condition of ACM in a building. ACM removal may be required if the ACM is likely to be disturbed or damaged during the demolition or renovation. Abatement of friable or potentially friable ACM must be performed by a licensed abatement contractor in accordance with state rules and NESHAP. Additionally, OSHA regulations for work classification, worker training and worker protection will apply.
AHERA Asbestos Hazard Emergency Response Act
AST
Aboveground Storage Tanks. ASTs are generally described as storage tanks less than 10% of which are below ground (i.e., buried).
Tanks located in a basement, but not buried, are also considered ASTs. Whether, and the extent to which, an AST is regulated, is determined on a case-by-case basis and depends upon tank size, its contents and the jurisdiction of its location.
BGS Below Ground Surface
BTEX Benzene, Toluene, Ethylbenzene, and Xylenes. BTEX are VOC components found in gasoline and commonly used as analytical indicators of a petroleum hydrocarbon release.
CERCLA
Comprehensive Environmental Response, Compensation and Liability Act (a.k.a. Superfund). CERCLA is the federal act that regulates abandoned or uncontrolled hazardous waste sites. Under this Act, joint and several liability may be imposed on potentially responsible parties for cleanup-related costs.
CERCLIS
Comprehensive Environmental Response, Compensation and Liability Information System. An EPA compilation of sites having suspected or actual releases of hazardous substances to the environment. CERCLIS also contains information on site inspections, preliminary assessments and remediation of hazardous waste sites. These sites are typically reported to EPA by states and municipalities or by third parties pursuant to CERCLA Section 103.
CESQG Conditionally exempt small quantity generators.
CFR Code of Federal Regulations
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Packet Pg. 1372 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Description of Selected General Terms and Acronyms (cont.) Term/Acronym Description
CREC
Controlled Recognized Environmental Condition is defined in ASTM E 1527-13 as “a recognized environmental condition resulting from a past release of hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority (for example, as evidenced by the issuance of a no further action letter or equivalent, or meeting risk-based criteria established by regulatory authority) , with hazardous substances or petroleum products allowed to remain in place subject to the implementation of required controls (for example, property use restrictions, activity and use limitations, institutional controls, or engineering controls). A condition considered by the environmental professional to be a controlled recognized environmental condition shall be listed in the findings section of the Phase I Environmental Site Assessment report, and as a recognized environmental condition in the conclusions section of the Phase I Environmental Site Assessment report.”
DOT U.S. Department of Transportation
ERNS
Emergency Response Notification System. An EPA-maintained federal database which stores information on notifications of oil discharges and hazardous substance releases in quantities greater than the applicable reportable quantity under CERCLA. ERNS is a cooperative datasharing effort between EPA, DOT, and the National Response Center.
ESA Environmental Site Assessment
FRP Fiberglass Reinforced Plastic
Hazardous
Substance
As defined under CERCLA, this is (A) any substance designated pursuant to section 1321(b)(2)(A) of Title 33, (B) any element, compound, mixture, solution, or substance designated pursuant to section 9602 of this title; (C) any hazardous waste having characteristics identified under or listed pursuant to section 3001 of the Solid Waste Disposal Act (with some exclusions); (D) any toxic pollutant listed under section 1317(a) of Title 33; (E) any hazardous air pollutant listed under section 112 of the Clean Air Act; and (F) any imminently hazardous chemical substance or mixture with respect to which the EPA Administrator has taken action under section 2606 of Title 15. This term does not include petroleum, including crude oil or any fraction thereof which is not otherwise listed as a hazardous substance under subparagraphs (A) through (F) above, and the term include natural gas, or synthetic gas usable for fuel (or mixtures of natural gas and such synthetic gas).
Hazardous Waste
This is defined as having characteristics identified or listed under section 3001 of the Solid Waste Disposal Act (with some exceptions).
RCRA, as amended by the Solid Waste Disposal Act of 1980, defines this term as a “solid waste, or combination of solid wastes, which because of its quantity, concentration, or physical, chemical, or infectious characteristics may (A) cause, or significantly contribute to an increase in mortality or an increase in serious irreversible, or incapacitating reversible illness; or (B) pose a substantial present or potential hazard to human health or the environment when improperly treated, stored, transported, or disposed of, or otherwise managed.” HREC
Historical Recognized Environmental Condition is defined in ASTM E 1527-13 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 residential use criteria established by a regulatory authority, without subjecting the property to any required controls (for example, property use restrictions, activity and use limitations, institutional controls, or engineering controls). Before calling the past release a historical recognized environmental condition, the environmental professional must determine whether the past release is a recognized environmental condition at the time of the Phase I Environmental Site Assessment is conducted (for example, if there has been a change in the regulatory criteria). If the EP considers the past release to be a recognized environmental condition at the time the Phase I ESA is conducted, the condition shall be included in the conclusions section of the report as a recognized environmental condition.” ILP Innocent Landowner/Operator Program
LQG Large quantity generators.
LUST Leaking Underground Storage Tank. This is a federal term set forth under RCRA for leaking USTs. Some states also utilize this term.
MCL Maximum Contaminant Level. This Safe Drinking Water concept (and also used by many states as a ground water cleanup criteria) refers to the limit on drinking water contamination that determines whether a supplier can deliver water from a specific source without treatment.
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Packet Pg. 1373 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Description of Selected General Terms and Acronyms (cont.) Term/Acronym Description
PCB
Polychlorinated Biphenyl. A halogenated organic compound commonly in the form of a viscous liquid or resin, a flowing yellow oil, or a waxy solid. This compound was historically used as dielectric fluid in electrical equipment (such as electrical transformers and capacitors, electrical ballasts, hydraulic and heat transfer fluids), and for numerous heat and fire sensitive applications. PCB was preferred due to its durability, stability (even at high temperatures), good chemical resistance, low volatility, flammability, and conductivity. PCBs, however, do not break down in the environment and are classified by the EPA as a suspected carcinogen. 1978 regulations, under the Toxic Substances Control Act, prohibit manufacturing of PCB-containing equipment; however, some of this equipment may still be in use today. pCi/L Pico Curies per Liter of Air. Unit of measurement for Radon and similar radioactive materials.
PLM Polarized Light Microscopy (see ACM section of the report, if included in the scope of services) PST Petroleum Storage Tank. An AST or UST that contains a petroleum product.
Radon
A radioactive gas resulting from radioactive decay of naturally-occurring radioactive materials in rocks and soils containing uranium, granite, shale, phosphate, and pitchblende. Radon concentrations are measured in Pico Curies per Liter of Air. Exposure to elevated levels of radon creates a risk of lung cancer; this risk generally increases as the level of radon and the duration of exposure increases. Outdoors, radon is diluted to such low concentrations that it usually does not present a health concern. However, radon can accumulate in building basements or similar enclosed spaces to levels that can pose a risk to human health. Indoor radon concentrations depend primarily upon the building's construction, design and the concentration of radon in the underlying soil and ground water. The EPA recommended annual average indoor “action level” concentration for residential structures is 4.0 pCi/l.
RCRA Resource Conservation and Recovery Act. Federal act regulating solid and hazardous wastes from point of generation to time of disposal (‘cradle to grave”). 42 U.S.C. 6901 et seq.
RCRA
Generators
The RCRA generators list is part of the RCRIS database maintained by EPA and lists facilities that generate hazardous waste as part of their normal business operations, as more particularly defined under Section 4.1 of this report.
RCRA
CORRACTS/TS
Ds
The USEPA maintains a database of RCRA facilities associated with treatment, storage, and disposal (TSD) of hazardous materials which are undergoing “corrective action”. A “corrective action” order is issued when there is a release of hazardous waste or constituents into the environment from a RCRA facility.
RCRA NonCORRACTS/TS
Ds
The RCRA Non-CORRACTS/TSD Database is a compilation by the USEPA of facilities which report storage, transportation, treatment, or disposal of hazardous waste. Unlike the RCRA CORRACTS/TSD database, the RCRA Non-CORRACTS/TSD database does not include RCRA facilities where corrective action is required.
RCRA
Violators List
RAATS. RCRA Administrative Actions Taken. RAATS information is now contained in the RCRIS database and includes records of administrative enforcement actions against facilities for noncompliance.
RCRIS Resource Conservation and Recovery Information System, as defined in the Records Review section of this report.
REC
Recognized Environmental Conditions are defined by ASTM E1527-13 as “the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property: 1)due to any 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. De minimis conditions are not recognized environmental conditions.”
SCL State “CERCLIS” List (see SPL /State Priority List, below).
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Packet Pg. 1374 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Description of Selected General Terms and Acronyms (cont.) Term/Acronym Description
MSDS Material Safety Data Sheets. Written/printed forms prepared by chemical manufacturers, importers and employers which identify the physical and chemical traits of hazardous chemicals under OSHA’s Hazard Communication Standard.
NESHAP National Emissions Standard for Hazardous Air Pollutants (Federal Clean Air Act). This part of the Clean Air Act regulates emissions of hazardous air pollutants.
NFRAP Facilities where there is “No Further Remedial Action Planned,” as more particularly described under the Records Review section of this report.
NOV Notice of Violation. A notice of violation or similar citation issued to an entity, company or individual by a state or federal regulatory body indicating a violation of applicable rule or regulations has been identified.
NPDES National Pollutant Discharge Elimination System (Clean Water Act). The federal permit system for discharges of polluted water.
NPL National Priorities List, as more particularly described under the Records Review section of this report.
OSHA Occupational Safety and Health Administration or Occupational Safety and Health Act PACM Presumed Asbestos-Containing Material. A material that is suspected of containing or presumed to contain asbestos but which has not been analyzed to confirm the presence or absence of asbestos.
SPCC
Spill Prevention, Control and Countermeasures. SPCC plans are required under federal law (Clean Water Act and Oil Pollution Act) for any facility storing petroleum in tanks and/or containers of 55-gallons or more that when taken in aggregate exceed 1,320 gallons. SPCC plans are also required for facilities with underground petroleum storage tanks with capacities of over 42,000 gallons. Many states have similar spill prevention programs, which may have additional requirements.
SPL State Priority List. State list of confirmed sites having contamination in which the state is actively involved in clean up activities or is actively pursuing potentially responsible parties for clean up. Sometimes referred to as a State “CERCLIS” List.
SQG Small quantity generator.
SWF Solid Waste Facility
TPH Total Petroleum Hydrocarbons
TRI Toxic Release Inventory. Routine EPA report on releases of toxic chemicals to the environment based upon information submitted by entities subject to reporting under the Emergency Planning and Community Right to Know Act.
TSCA Toxic Substances Control Act. A federal law regulating manufacture, import, processing and distribution of chemical substances not specifically regulated by other federal laws (such as asbestos, PCBs, lead-based paint and radon). 15 U.S.C 2601 et seq.
USACE United States Army Corps of Engineers
USC United States Code
USGS United States Geological Survey
USNRCS United States Department of Agriculture-Natural Resource Conservation Service UST
Underground Storage Tank. Most federal and state regulations, as well as ASTM E1527-05, define this as any tank, incl., underground piping connected to the tank, that is or has been used to contain hazardous substances or petroleum products and the volume of which is 10% or more beneath the surface of the ground (i.e., buried).
VCP Voluntary Cleanup Program
VOC Volatile Organic Compound
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Packet Pg. 1375 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Term/Acronym Description
Wetlands
Areas that are typically saturated with surface or ground water that creates an environment supportive of wetland vegetation (i.e., swamps, marshes, bogs). The Corps of Engineers Wetlands Delineation Manual (Technical Report Y-87-1) defines wetlands as areas inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. For an area to be considered a jurisdictional wetland, it must meet the following criteria: more than 50 percent of the dominant plant species must be categorized as Obligate, Facultative Wetland, or Facultative on lists of plant species that occur in wetlands; the soil must be hydric; and, wetland hydrology must be present.
The federal Clean Water Act which regulates “waters of the US,” also regulates wetlands, a program jointly administered by the USACE and the EPA. Waters of the U.S. are defined as: (1) waters used in interstate or foreign commerce, including all waters subject to the ebb and flow of tides; (2) all interstate waters including interstate wetlands; (3) all other waters such as intrastate lakes, rivers, streams (including intermittent streams), mudflats, sandflats, wetlands, sloughs, prairie potholes, wet meadows, playa lakes, or natural ponds, etc., which the use, degradation, or destruction could affect interstate/ foreign commerce; (4) all impoundments of waters otherwise defined as waters of the U. S., (5) tributaries of waters identified in 1 through 4 above; (6) the territorial seas; and (7) wetlands adjacent to waters identified in 1 through 6 above. Only the USACE has the authority to make a final wetlands jurisdictional determination.
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Packet Pg. 1376 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Supplemental Hazardous Materials
Survey
Barton Road Bridge Removal and Road Construction
Project No. BRLS-5065(024); Bridge No. 54C-0379
Barton Road, West of Grand Terrace Road
Colton and Grand Terrace, San Bernardino County, CA
January 21, 2021
Terracon Project No. CB175228
Prepared for:
CNS Engineers, Inc.
Riverside, California
Prepared by:
Terracon Consultants, Inc.
Tustin, California
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Packet Pg. 1377 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Terracon Consultants, Inc. 1421 Edinger Avenue, Suite C Tustin, California 92780 P [949] 261-0051 F [949] 261-6110 terracon.com
January 21, 2021
CNS Engineers, Inc.
11870 Pierce Street, Suite 265
Riverside, California 92505
Attn: Mr. Steve Hosford
E: [email protected]
RE: Supplemental Asbestos and Lead Survey
Barton Road Bridge
Barton Road and Grand Terrace Road
Colton, California 92313
Terracon Project No. CB175228
Dear Mr. Hosford:
Terracon Consultants, Inc. (Terracon) is pleased to present the findings of the supplemental asbestos and lead survey performed on December 15, 2020 at the above referenced site. This survey was conducted in general accordance with CNS Engineering, Inc. Subconsultant Agreement dated May 24, 2019. We understand that this survey was requested due to the planned demolition of the bridge and the section of Barton Road between South Terrace Avenue and Grand Terrace Road.
Terracon appreciates the opportunity to provide this service to CNS Engineers, Inc. If you have any questions regarding this report, or if you need assistance with project oversight and sampling during demolition of this site, please contact the undersigned at (949) 383-1976.
Sincerely,
Terracon Consultants, Inc.
Mark Korte, CAC For Kenneth Pilgrim, CAC
Project Manager Environmental Department Manager
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Packet Pg. 1378 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
TABLE OF CONTENTS
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1.0 INTRODUCTION ...................................................................................................................... 1
1.1 Project Objective .......................................................................................................... 1
2.0 BUILDING DESCRIPTION ..................................................................................................... 1
3.0 FIELD ACTIVITIES .................................................................................................................. 2
3.1 Visual Assessment ...................................................................................................... 2
3.2 Physical Assessment .................................................................................................. 2
3.3 Sample Collection ........................................................................................................ 2
3.4 Sample Analysis .......................................................................................................... 3
4.0 REGULATORY OVERVIEW ................................................................................................... 7
5.0 FINDINGS ................................................................................................................................ 7
6.0 GENERAL COMMENTS ......................................................................................................... 8
APPENDIX A HAZARDOUS MATERIALS ANALYTICAL DATA
(FROM SAMPLES COLLECTED ON 12/15/20)
APPENDIX B SAMPLE LOCATION DIAGRAM
APPENDIX C LICENSES AND CERTIFICATIONS
APPENDIX D INITIAL ASBESTOS AND LEAD SURVEY
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Packet Pg. 1379 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Reliable ■ Responsive ■ Resourceful 1
SUPPLEMENTAL HAZARDOUS MATERIALS SURVEY REPORT
Barton Road Bridge
Barton Road and Grand Terrace Road
Colton, California 92313
Terracon Project No. CB175228
January 20, 2021
1.0 INTRODUCTION
Terracon Consultants, Inc. (Terracon) conducted a supplemental asbestos and lead survey of the above referenced site located at Barton Road and Grand Terrace Road in Colton, California on December 15, 2020. An initial survey of the site was conducted on August 6, 2019 by a State of California Certified Site Surveillance Technician (CSST) and California Department of Public Health (CDPH) certified lead inspector/assessor in general accordance with CNS Engineering, Inc.
Subconsultant Agreement dated May 24, 2019.
A supplemental survey was necessary since certain suspect materials were not feasible to sample during the initial survey due to the lack of traffic control. The initial report can be found in Appendix D.
1.1 Project Objective
We understand an asbestos survey was requested due to the planned demolition of the abovementioned section of Barton Road. EPA regulation 40 CFR 61, Subpart M, National Emission Standards for Hazardous Air Pollutants (NESHAP), prohibits the release of asbestos fibers to the atmosphere during renovation or demolition activities. The asbestos NESHAP requires that potentially regulated ACM (RACM) be identified, classified and quantified prior to planned disturbances or demolition activities.
The lead and chromium sampling was requested due to historical use of lead and chromium in traffic lane paints and thermoplastic striping (PTS). The detectable concentrations of lead chromate in the PTS applied to roadways would classify the waste generated as hazardous.
2.0 SITE DESCRIPTION
The site consists of an approximately 1,100-foot length of an asphalt-paved, two-lane road, that spans the approximate distance between Grand Terrace Road (east of the site) and South Terrace Avenue (west of the site). The site is improved with the Barton Road Bridge (Bridge No. 54C-0379), approximately 175 feet long by 25 feet wide, which was originally built in 1936 (on the central portion of the site), over a former abandoned railroad track (removed) and Union Pacific right-of-way, sidewalks (shutdown due to safety concerns), and easements (along the northern and southern perimeters of the site), and utilities.
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Packet Pg. 1380 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Supplemental Asbestos and Lead Survey
Barton Road Bridge ■ Colton, California
January 21, 2021 ■ Terracon Project No. CB175228
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3.0 FIELD ACTIVITIES
The supplemental survey was conducted on December 15, 2020, by Mr. Mark Korte, a California Division of Occupational Safety and Health (DOSH) – Certified Site Surveillance Asbestos Consultant and a CDPH Lead Sampling Technician. Copies of Mr. Korte’s certifications are attached in Appendix C. A summary of the field activities is described below.
3.1 Visual Assessment
Terracon began the supplemental survey with a visual assessment, identification and inventory of readily visible and accessible homogeneous areas of suspect ACM and suspect lead and chromium-containing paints. A homogeneous area consists of building materials that appear similar throughout in terms of color and texture. The assessment was limited to visually accessible materials. Building materials identified as glass (includes fiberglass), wood, masonry, metal, plastic were not considered suspect ACM.
3.2 Physical Assessment
Asbestos
A physical assessment of each homogeneous area of suspect ACM was conducted to assess the friability and condition of the materials. A friable material is defined by the EPA as a material which can be crumbled, pulverized or reduced to powder by hand pressure when dry. Friability was assessed by physically touching suspect materials.
Lead and Chromium Paint
A physical assessment of paint and coatings on the road section was conducted to determine its condition. The painted surfaces were assessed as intact, fair or damaged condition depending on degree of damage.
3.3 Sample Collection
Asbestos
Based on results of the visual observation, Terracon collected bulk samples of suspect ACM in general accordance with AHERA sampling protocols. Samples of the suspect ACM were collected using wet methods, where applicable, to reduce the potential for fiber release. Samples were placed in sealable containers and labeled with unique sample numbers.
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Packet Pg. 1381 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Supplemental Asbestos and Lead Survey
Barton Road Bridge ■ Colton, California
January 21, 2021 ■ Terracon Project No. CB175228
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During the supplemental survey, Terracon collected three (3) bulk samples from one (1) homogeneous area (HA) of suspect ACM, mastic under the street reflectors. The asbestos survey material summary is in Section 3.4.
Lead and Chromium Paint
For the supplemental lead and chromium paint survey, Terracon collected one (1) sample from the yellow paint strip in the center of the road for analysis by inductively coupled plasma (ICP), EPA Method 6010B. The lead and chromium and paint sample summary is Section 3.4.
3.4 Sample Analysis
Asbestos
Samples of suspect ACM were delivered under chain-of-custody protocol to EMLab P&K (EMLab) of Irvine, California. EMLab is a laboratory accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) under the National Institute of Standards and Technology (NIST) for analysis by polarized light microscopy (PLM). The percentage of asbestos, where applicable, was determined by microscopical visual estimation. Copies of the analytical report and chain-ofcustody form is provided in Appendix A.
The NESHAP, states that asbestos bulk samples that contain less than 10% asbestos as determined by visual PLM analysis are to be subsequently analyzed by point counting or accepted as asbestos containing. Consistent with the NESHAP, the EPA has clarified that results of point counting supersede visual PLM results.
Below is a summary of the findings from the survey activities conducted on November 5, 2020.
Table I
Asbestos Bulk Sample Results
HA Material Material
Location(s) Result NESHAPClassification Condition SquareFeet Main Building – Recreation Center
01 Black Mastic
Under Traffic
Reflectors
Yellow Center
Line on Road ND (None Detected) N/A Good 5
* N/A = Not Applicable, CH = Chrysotile
Lead and Chromium in Paint
The sample for lead and chromium paint associated with the yellow traffic line was delivered under proper chain-of-custody to Eurofins Calscience Irvine in Irvine, California. Eurofins is an Environmental Lead Laboratory Accreditation Program (ELLAP) accredited laboratory. The paint
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Packet Pg. 1382 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Supplemental Asbestos and Lead Survey
Barton Road Bridge ■ Colton, California
January 21, 2021 ■ Terracon Project No. CB175228
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sample was analyzed by EPA Method 6010B using inductively coupled plasma (ICP). Copies of the analytical report and chain-of-custody form is provided in Appendix A.
The results and sample summary for the sampling conducted on December 15, 2020 can be found below:
Table II
Lead and Chromium Sample Results
Sample
Number Color/Type Substrate Sample Location Condition Result(ppm) Lead
01 Yellow Paint Asphalt Center Road Paint
Stripe Intact 3.9
Chromium
01 Yellow Paint Asphalt Center Road Paint
Stripe Intact 6.7
< = Below the Laboratory Limit of Detection
4.0 REGULATORY OVERVIEW
Asbestos
As a consequence of the health hazard from inhalation of asbestos fibers, a body of federal and state regulations has been developed. Federal regulations pertaining to asbestos are included in AHERA (US EPA 40 CFR 763); NESHAP (EPA 40 CFR 61); OSHA Asbestos Standards (29 CFR 1910.1001 and 29 CFR 1926.1101), and ASHARA (Asbestos School Hazard Abatement Reauthorization Act). Many states have additional requirements including state-specific licensing and certification. In California, these regulations include, but are not limited to: Cal/OSHA in Title 8, Sections 1529 and 5208 and the South Coast Air Quality Management District (SCAQMD) Rule 1403.
The federal asbestos NESHAP standard (40 CFR Part 61, Subpart M) regulates asbestos fiber emissions and asbestos waste disposal practices. NESHAP also requires the identification and classification of asbestos removal in the South Coast Air Quality Management District. Under NESHAP, ACM are classified as either friable (regulated ACM), Category I non-friable or Category II non-friable ACM. Friable materials are those that, when dry, may be crumbled, pulverized or reduced to powder by hand pressure. Category I non-friable ACM includes packings, gaskets, resilient floor coverings and asphalt roofing products containing more than 1% asbestos. Category II non-friable ACM are any materials other than Category I materials that contain more than 1% asbestos.
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Packet Pg. 1383 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Supplemental Asbestos and Lead Survey
Barton Road Bridge ■ Colton, California
January 21, 2021 ■ Terracon Project No. CB175228
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Friable ACM, along with Category I and Category II non-friable ACM, which is in poor condition and has become friable or which will be subjected to drilling, sanding, grinding, cutting or abrading and which could be crushed or pulverized during anticipated renovation or demolition activities are considered regulated ACM (RACM).
Building materials confirmed to be ACM through the collection of bulk sampling and subsequent laboratory analysis, or presumed ACM, must be removed prior to intentional disturbance during planned renovation/demolition activities. Asbestos abatement must be conducted by Cal/OSHAaccredited workers and registered asbestos abatement contractors. Third-party air monitoring is recommended during abatement activities.
Cal/OSHA requires that only properly licensed and certified asbestos abatement contractors are allowed to remove ACM. As per NESHAP, all RACM shall be removed from a facility being demolished or renovated before any non-burning demolition or renovation begins that would break up, dislodge, or similarly disturb the material or preclude access to the material for subsequent removal. According to SCAQMD, if more than 100 square feet of any ACM is to be stripped, removed, dislodged, cut, drilled, or similarly disturbed, or for any demolition, the asbestos abatement contractor or facility owner must submit an Asbestos Notification of Demolition and Renovation form to SCAQMD along with the appropriate fees within at least 10 working days prior to the scheduled asbestos removal activity or demolition start date. Planned renovations that do not meet the definition of ‘demolition or renovation of a facility’ per SCAQMD and where no ACM exists do not require notification to SCAQMD.
The federal OSHA Asbestos standard for construction (29 CFR 1926.1101) and the Cal/OSHA asbestos standard for general industry and the construction industry (CCR Title 8, Sections 5208 and 1529, respectively) regulate workplace exposure to asbestos. Both the federal OSHA and Cal/OSHA standards require that employee exposure to airborne asbestos fibers be maintained below 0.1 asbestos fibers per cubic centimeter of air (0.1 f/cc) as an eight-hour time weighted average. The federal OSHA and Cal/OSHA standards classifies construction and maintenance activities which could disturb ACM and specifies work practices and precautions which employers must follow when engaging in each class of regulated work. However, workers who deliberately disturb any amount of asbestos should have pertinent training and wear proper personal protective equipment according to federal and state regulatory requirements (i.e., Cal/OSHA 8 CCR 1529 (g) (1) through (9) for Class I, II and III work).
Asbestos containing construction materials (ACCM) is a term developed by Cal/OSHA out of concern for non-hazardous building materials used inside and outside a building that contain less than 1% asbestos. The definition of ACCM includes any manufactured building material that has more than one-tenth of 1% (>0.1%) asbestos content. The SCAQMD requires point counting of friable samples of ACM at concentrations of less than 10% to determine more accurately the content of asbestos and proper classification of the material for proper abatement and disposal requirements. Alternatively, materials may be presumed as ACMs. If the material is less than one
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Packet Pg. 1384 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Supplemental Asbestos and Lead Survey
Barton Road Bridge ■ Colton, California
January 21, 2021 ■ Terracon Project No. CB175228
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tenth of 1%, the material is not regulated by the EPA however Cal/OSHA worker protection regulations apply if any asbestos is detected.
Lead Paint
The Resource Conservation and Recovery Act (RCRA) gave the USEPA authority to regulate the waste status of demolition and renovation debris, including lead-containing materials. Specific notification and testing requirements must be addressed prior to transporting, treating, storing, or disposing of hazardous wastes. Lead containing wastes are considered hazardous waste under RCRA if Toxicity Characteristic Leaching Procedure (TCLP) results exceed 5 milligrams per liter (mg/L). EPA exempts from most RCRA requirements those generators whose combined hazardous waste generation is less than 100 kilograms (kg) per month.
Detectable lead quantities may constitute a lead dust hazard during renovation/demolition activities.
Personnel performing renovation/demolition activities that may disturb painted components with concentrations of lead above the designated analytical detection limit should comply with all current OSHA regulations in order to minimize employee exposure. OSHA regulates construction activities that disturb lead-containing material regardless of the concentration. Currently, any proposed renovation/demolition is subject to the OSHA regulations (29 CFR 1926.62 – Lead Exposure in Construction).
In California, the lead standard was adopted by Cal-OSHA as Title 8 CCR, Section 1532.1 (Occupational Lead Poisoning Prevention Program). The California Department of Public Health also regulates accreditations, certifications and work practices for activities involving leadcontaining materials under Title 17 CCR. The federal and Cal-OSHA regulations define specific training requirements, engineering controls and working practices for construction personnel subject to this standard. Occupational exposure to lead occurring in the course of construction work, including maintenance activities, painting, alteration and repairs is subject to the OSHA Lead Exposure in Construction standard.
Contractors and employers are required to comply with 29 CFR 1926.62 and Title 8 CCR 1532.1.
Construction work covered by federal and Cal-OSHA standards includes any repair or renovation activities or other activities that disturb in-place lead-containing materials. Employers must assure that no employee will be exposed to lead at concentrations greater than 50 micrograms per cubic meter (mg/m3) averaged over an eight-hour period without adequate protection. The Federal and California OSHA Standards also establish an action level of 30 mg/m3, which if exceeded, triggers the requirement for medical monitoring.
Proper waste stream categorization is required for the disposal of all lead containing materials and painted construction debris with total lead content that exceeds 50 ppm. The debris should be classified as hazardous waste if lead waste concentrations exceed either the total lead concentration or soluble lead concentration regulatory limits. Total lead concentration is determined
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Packet Pg. 1385 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Supplemental Asbestos and Lead Survey
Barton Road Bridge ■ Colton, California
January 21, 2021 ■ Terracon Project No. CB175228
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by Total Threshold Limit Concentration (TTLC). Soluble or leachable lead is determined by the Soluble Threshold Limit Concentration (STLC, California required test) and/or Toxicity Characteristic Leaching Procedure (TCLP) (Federal EPA required test). Regulatory limits characterize a lead waste as a hazardous waste if lead concentrations exceed 1,000 ppm by TTLC or 5 milligrams per liter by STLC or TCLP.
The above overview is not intended to be inclusive of all potentially pertinent regulatory information.
The relevant EPA and OSHA standards should be consulted prior to undertaking activities involving the demolition, renovation, or maintenance of ACMs or surfaces coated with lead paints.
Chromium in Paint
Similar to the use of lead paint, chrome yellow (containing lead chromate) was used as the primary yellow pigment in traffic lane paints and thermoplastic striping. In California, lead chromate traffic striping has been phased out of traffic paint between 1997 and 2000 and was phased out from thermoplastic striping by 2004. The concentrations of lead chromate in the traffic lane paints and thermoplastic striping applied to roadways is considered hazardous waste. During construction activities, chromium is considered to have potential to impact the environment and workers on site, as well as affect disposal methods.
5.0 FINDINGS AND CONCLUSIONS
Asbestos
Asbestos was not detected in the samples collected.
Should suspect materials other than those which were identified during the initial and supplemental survey be uncovered prior to or during the renovation and demolition, those materials should be assumed asbestos-containing until sampling and analysis can confirm or refute the asbestos content.
Lead-Containing and Chromium Paint
Based on the results of laboratory analysis, the sampled material was found to contain a lead concentration above the laboratory limit of detection and is considered lead-containing paint (LCP).
Additional lead-based paints (LBP) and LCP are listed in the Initial Pre-Demolition Hazardous Materials Survey report, which can be found in Appendix D.
Based on the laboratory analysis, the sampled material was found to contain chromium in concentrations above the laboratory limit of detection.
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Packet Pg. 1386 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Supplemental Asbestos and Lead Survey
Barton Road Bridge ■ Colton, California
January 21, 2021 ■ Terracon Project No. CB175228
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Solubility testing (STLC) of the paint should be conducted for the chromium prior to disposal to determine if the waste is hazardous. STLC is not required for lead since the total concentration of lead detected in the sampled collected is not above 50 ppm.
The laboratory results and chain of custody for the suspect lead and chromium paint sample can be found in Appendix A.
6.0 GENERAL COMMENTS
This supplemental survey was conducted in a manner consistent with the level of care and skill ordinarily exercised by members of the profession currently practicing under similar conditions in the same locale. The results, findings, conclusions and recommendations expressed in this report are based on conditions observed during our survey of the buildings. The information contained in this report is relevant to the date on which this survey was performed and should not be relied upon to represent conditions at a later date. This report has been prepared on behalf of and exclusively for use by CNS Engineering, Inc. for specific application to their project as discussed. This report is not a bidding document. Contractors or consultants reviewing this report must draw their own conclusions regarding further investigation or remediation deemed necessary. Terracon does not warrant the work of regulatory agencies, laboratories or other third parties supplying information which may have been used in the preparation of this report. No warranty, express or implied is made.
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Packet Pg. 1387 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
APPENDIX A
ASBESTOS, LEAD, & CHROMIUM LABORATORY ANALYTICAL LABORATORY DATA (From the samples collected on 12/15/20)
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Packet Pg. 1388 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Approved by:
Approved Signatory
Danny Li
Report for:
Mark Korte, Danish Mansoor
Terracon Consultants, Inc. - Tustin, CA
1421 Edinger Ave
suite C
Tustin, CA 92780
Regarding: Project: CB175228; Barton Rd/Grand Terrace Rd, Colton, CA EML ID: 2541475
All samples were received in acceptable condition unless noted in the Report Comments portion in the body of the report. The results relate only to the samples as received. The results include an inherent uncertainty of measurement associated with estimating percentages by polarized light microscopy. Measurement uncertainty data for sample results with >1% asbestos concentration can be provided when requested.
Eurofins EMLab P&K ("the Company") shall have no liability to the client or the client's customer with respect to decisions or recommendations made, actions taken or courses of conduct implemented by either the client or the client's customer as a result of or based upon the Test Results. In no event shall the Company be liable to the client with respect to the Test Results except for the Company's own willful misconduct or gross negligence nor shall the Company be liable for incidental or consequential damages or lost profits or revenues to the fullest extent such liability may be disclaimed by law, even if the Company has been advised of the possibility of such damages, lost profits or lost revenues. In no event shall the Company's liability with respect to the Test Results exceed the amount paid to the Company by the client therefor.
Dates of Analysis:
Asbestos PLM: 12-17-2020
Service SOPs: Asbestos PLM (EPA 40CFR App E to Sub E of Part 763 & EPA METHOD 600/R-93-116, SOP EM-AS-S-1267) NVLAP Lab Code 200757-0
EMLab P&K, LLC EMLab ID: 2541475, Page 1 of 2
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Packet Pg. 1389 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Eurofins EMLab P&K
17461 Derian Ave, Suite 100, Irvine, CA 92614
(866) 888-6653 Fax (623) 780-7695 www.emlab.com Client: Terracon Consultants, Inc. - Tustin, CA C/O: Mark Korte, Danish Mansoor
Re: CB175228; Barton Rd/Grand Terrace Rd,
Colton,
CA
Date of Sampling: 12-15-2020
Date of Receipt: 12-15-2020
Date of Report: 12-18-2020
ASBESTOS PLM REPORT
Total Samples Submitted: 3
Total Samples Analyzed: 3
Total Samples with Layer Asbestos Content > 1%: 0
Location: 1-MS5-1, Black Mastic Under Reflectors, Center Line of Bridge-Middle Lab ID-Version‡: 12112816-1 Sample Layers Asbestos Content
Black Mastic ND
Sample Composite Homogeneity: Good
Location: 1-MS5-2, Black Mastic Under Reflectors, Center Line of Bridge-East Lab ID-Version‡: 12112817-1 Sample Layers Asbestos Content
Black Mastic ND
Sample Composite Homogeneity: Good
Location: 1-MS5-3, Black Mastic Under Reflectors, Center Line of Bridge-East Lab ID-Version‡: 12112818-1 Sample Layers Asbestos Content
Black Mastic ND
Sample Composite Homogeneity: Good
EMLab P&K, LLC EMLab ID: 2541475, Page 2 of 2
The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. Eurofins EMLab P&K reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.
Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.
‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x".
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Packet Pg. 1390 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
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Packet Pg. 1391
Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road
ANALYTICAL REPORT
Eurofins Calscience Irvine
17461 Derian Ave
Suite 100
Irvine, CA 92614-5817
Tel: (949)261-1022
Laboratory Job ID: 440-276146-1
Laboratory SDG: Barton Rd & Grand Terrace Rd, Colton, CA Client Project/Site: Barton Bridge
For:
Terracon Consulting Eng & Scientists
1421 Edinger Ave, Suite C
Tustin, California 92780
Attn: Danish Mansoor
Authorized for release by:
12/27/2020 7:44:30 AM
Danielle Roberts, Senior Project Manager
(949)260-3249
[email protected]
The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page.
This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature.
Results relate only to the items tested and the sample(s) as received by the laboratory. 1 2
3 4
5 6
7 8
9 10
11 12
13 14
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Packet Pg. 1392 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Table of Contents
Client: Terracon Consulting Eng & Scientists
Project/Site: Barton Bridge
Laboratory Job ID: 440-276146-1
SDG: Barton Rd & Grand Terrace Rd, Colton, CA
Eurofins Calscience Irvine
12/27/2020
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1 2
3 4
5 6
7 8
9 10
11 12
13 14
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Packet Pg. 1393 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Sample Summary
Client: Terracon Consulting Eng & Scientists Job ID: 440-276146-1 Project/Site: Barton Bridge SDG: Barton Rd & Grand Terrace Rd, Colton, CA Lab Sample ID Client Sample ID Matrix Collected Received Asset ID 440-276146-1 1 Solid 12/15/20 00:01 12/15/20 14:45
Eurofins Calscience Irvine
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Packet Pg. 1394 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Case Narrative
Client: Terracon Consulting Eng & Scientists Job ID: 440-276146-1 Project/Site: Barton Bridge SDG: Barton Rd & Grand Terrace Rd, Colton, CA Job ID: 440-276146-1
Laboratory: Eurofins Calscience Irvine
Narrative
Job Narrative
440-276146-1
Comments
No additional comments.
Receipt
The sample was received on 12/15/2020 2:45 PM; the sample arrived in good condition. The temperature of the cooler at receipt was 21.5º C.
Receipt Exceptions
The following sample was received at the laboratory without a sample collection time documented on the chain of custody or on the container: 1 (440-276146-1). The sample was logged in with a time of collection at 00:01am per default.
Metals
Method 6010B: The following sample was diluted due to the nature of the sample matrix: 1 (440-276146-1). Elevated reporting limits (RLs) are provided.
Method 6010B: The matrix spike / matrix spike duplicate (MS/MSD) recoveries and precision of Lead for preparation batch 440-633733 and analytical batch 440-634006 were outside control limits. Sample matrix interference and/or non-homogeneity are suspected because the associated laboratory control sample (LCS) was within acceptance limits No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
General Chemistry
Method Moisture: Insufficient sample volume was available to perform a sample duplicate (DUP) associated with analytical batch 440-633898.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
Eurofins Calscience Irvine Page 4 of 14 12/27/2020
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Packet Pg. 1395 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Detection Summary
Client: Terracon Consulting Eng & Scientists Job ID: 440-276146-1 Project/Site: Barton Bridge SDG: Barton Rd & Grand Terrace Rd, Colton, CA Client Sample ID: 1 Lab Sample ID: 440-276146-1
Lead
☼
RL
4.0 mg/Kg
MDL
2.0 Analyte Result Qualifier Unit Dil Fac D Method Prep Type J3.9 10 6010B Total/NA
Chromium 6.7 2.0 1.0 mg/Kg 10
☼ 6010B Total/NA
Eurofins Calscience Irvine
This Detection Summary does not include radiochemical test results.
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Packet Pg. 1396 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Client Sample Results
Client: Terracon Consulting Eng & Scientists Job ID: 440-276146-1 Project/Site: Barton Bridge SDG: Barton Rd & Grand Terrace Rd, Colton, CA Client Sample ID: 1 Lab Sample ID: 440-276146-1
Date Collected: 12/15/20 00:01 Matrix: Solid
Date Received: 12/15/20 14:45 Percent Solids: 99.8
Method: 6010B - Metals (ICP)
RL MDL
Lead 3.9 J 4.0 2.0 mg/Kg
☼ 12/17/20 08:37 12/17/20 16:48 10
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Chromium 6.7 2.0 1.0 mg/Kg
☼ 12/17/20 08:37 12/17/20 16:48 10
Eurofins Calscience Irvine
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Packet Pg. 1397 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Method Summary
Client: Terracon Consulting Eng & Scientists Job ID: 440-276146-1 Project/Site: Barton Bridge SDG: Barton Rd & Grand Terrace Rd, Colton, CA Method Method Description Protocol Laboratory
6010B Metals (ICP) SW846 TAL IRV
3050B Preparation, Metals SW846 TAL IRV
Protocol References:
SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.
Laboratory References: TAL IRV = Eurofins Calscience Irvine, 17461 Derian Ave, Suite 100, Irvine, CA 92614-5817, TEL (949)261-1022 Eurofins Calscience Irvine
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Packet Pg. 1398 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Lab Chronicle
Client: Terracon Consulting Eng & Scientists Job ID: 440-276146-1 Project/Site: Barton Bridge SDG: Barton Rd & Grand Terrace Rd, Colton, CA Client Sample ID: 1 Lab Sample ID: 440-276146-1
Date Collected: 12/15/20 00:01 Matrix: Solid
Date Received: 12/15/20 14:45 Percent Solids: 99.8
Prep 3050B 633733 12/17/20 08:37 NE1 TAL IRV
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 1.99 g 50 mL
Total/NA Analysis 6010B 10 634006 12/17/20 16:48 P1R TAL IRV Laboratory References: TAL IRV = Eurofins Calscience Irvine, 17461 Derian Ave, Suite 100, Irvine, CA 92614-5817, TEL (949)261-1022 Eurofins Calscience Irvine
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Packet Pg. 1399 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction QC Sample Results
Client: Terracon Consulting Eng & Scientists Job ID: 440-276146-1 Project/Site: Barton Bridge SDG: Barton Rd & Grand Terrace Rd, Colton, CA Method: 6010B - Metals (ICP)
Lab Sample ID: MB 440-633733/1-A ^5 Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 634006 Prep Batch: 633733
RL MDL
Lead <2.0 2.0 0.99 mg/Kg 12/17/20 08:37 12/17/20 15:08 5 MB MB
Analyte Result Qualifier UnitD Prepared Analyzed Dil Fac Chromium <0.99 0.99 0.50 mg/Kg 12/17/20 08:37 12/17/20 15:08 5 Lab Sample ID: LCS 440-633733/2-A ^5 Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 634006 Prep Batch: 633733
Lead 49.8 44.3 mg/Kg 89 80
- 120
Analyte
LCS LCS
Result Qualifier UnitD %Rec
Spike
Added
%Rec.
Limits
Chromium 49.8 45.2 mg/Kg 91 80
- 120
Lab Sample ID: 440-275199-A-21-C MS ^5 Client Sample ID: Matrix Spike Matrix: Solid Prep Type: Total/NA
Analysis Batch: 634006 Prep Batch: 633733
Lead 130 F2 F1 49.3 147 F1 mg/Kg 38 75
- 125
Analyte
MS MS
Result Qualifier UnitD %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.
Limits
Chromium 20 49.3 65.5 mg/Kg 92 75
- 125
Lab Sample ID: 440-275199-A-21-D MSD ^5 Client Sample ID: Matrix Spike Duplicate Matrix: Solid Prep Type: Total/NA
Analysis Batch: 634006 Prep Batch: 633733
Lead 130 F2 F1 49.8 320 F1 F2 mg/Kg 386 75
- 125 74 20
Analyte
MSD MSD
Result Qualifier UnitD %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.
Limits RPD Limit
RPD
Chromium 20 49.8 66.5 mg/Kg 93 75
- 125 1 20
Eurofins Calscience Irvine
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Packet Pg. 1400 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction QC Association Summary
Client: Terracon Consulting Eng & Scientists Job ID: 440-276146-1 Project/Site: Barton Bridge SDG: Barton Rd & Grand Terrace Rd, Colton, CA Metals
Prep Batch: 633733
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 440-276146-11 Total/NA Solid 3050B
MB 440-633733/1-A ^5 Method Blank Total/NA Solid 3050B
LCS 440-633733/2-A ^5 Lab Control Sample Total/NA Solid 3050B 440-275199-A-21-C MS ^5 Matrix Spike Total/NA Solid 3050B 440-275199-A-21-D MSD ^5 Matrix Spike Duplicate Total/NA Solid 3050B Analysis Batch: 634006
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 440-276146-11 Total/NA Solid 6010B 633733
MB 440-633733/1-A ^5 Method Blank Total/NA Solid 6010B 633733 LCS 440-633733/2-A ^5 Lab Control Sample Total/NA Solid 6010B 633733 440-275199-A-21-C MS ^5 Matrix Spike Total/NA Solid 6010B 633733 440-275199-A-21-D MSD ^5 Matrix Spike Duplicate Total/NA Solid 6010B 633733 Eurofins Calscience Irvine
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Packet Pg. 1401 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Definitions/Glossary
Client: Terracon Consulting Eng & Scientists Job ID: 440-276146-1 Project/Site: Barton Bridge SDG: Barton Rd & Grand Terrace Rd, Colton, CA Qualifiers
Metals
Qualifier Description
F1 MS and/or MSD recovery exceeds control limits.
Qualifier
F2 MS/MSD RPD exceeds control limits J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.
Glossary
These commonly used abbreviations may or may not be present in this report. ¤ Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level"
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MQL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Eurofins Calscience Irvine
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Packet Pg. 1402 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Accreditation/Certification Summary
Client: Terracon Consulting Eng & Scientists Job ID: 440-276146-1 Project/Site: Barton Bridge SDG: Barton Rd & Grand Terrace Rd, Colton, CA Laboratory: Eurofins Calscience Irvine
The accreditations/certifications listed below are applicable to this report.
Authority Program Identification Number Expiration Date California State 2706 06-30-21
Oregon NELAP 4028 - 008 01-29-21
Eurofins Calscience Irvine
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Packet Pg. 1403 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
9 8
7 6
5 4
3 2
1 14
13 12
11 10
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Packet Pg. 1404
Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Login Sample Receipt Checklist
Client: Terracon Consulting Eng & Scientists Job Number: 440-276146-1 SDG Number: Barton Rd & Grand Terrace Rd, Colton, CA
Login Number: 276146
Question Answer Comment
Creator: Skinner, Alma D
List Source: Eurofins Irvine
List Number: 1
Radioactivity wasn't checked or is </= background as measured by a survey True meter.
The cooler's custody seal, if present, is intact. N/A Not present Sample custody seals, if present, are intact. N/A Not Present The cooler or samples do not appear to have been compromised or True tampered with.
Samples were received on ice. True
Cooler Temperature is acceptable. True
Cooler Temperature is recorded. True
COC is present. True
COC is filled out in ink and legible. True
COC is filled out with all pertinent information. False No time on COC or containers.
Is the Field Sampler's name present on COC? True
There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs)
Sample containers have legible labels. True
Containers are not broken or leaking. True
Sample collection date/times are provided. False No time on COC or sample containers Appropriate sample containers are used. True
Sample bottles are completely filled. True
Sample Preservation Verified. N/A
There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs
Containers requiring zero headspace have no headspace or bubble is True <6mm (1/4").
Multiphasic samples are not present. True
Samples do not require splitting or compositing. True
Residual Chlorine Checked. N/A
Eurofins Irvine Page 14 of 14 12/27/2020
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Packet Pg. 1405 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
APPENDIX B
SAMPLE LOCATION DIAGRAM
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Packet Pg. 1406 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 1 Sample Location Drawing Prepared for: CNS Engineers, Inc.
Project: Supplemental Hazardous Materials
Survey
Scale: Not to Scale
Terracon Project Number: CB175228
LEGEND
Barton Road Bridge
Barton Road and Grand Terrace Road
Exhibit
Asbestos Samples
Lead and Chromium
Samples
Survey Area
01 02
01 03
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Packet Pg. 1407 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge
APPENDIX C
LICENSES AND CERTIFICATIONS
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Packet Pg. 1408 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
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Packet Pg. 1409 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
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Packet Pg. 1410 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
APPENDIX D
INITIAL ASBESTOS AND LEAD SURVEY REPORT
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Packet Pg. 1411 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Pre-Demolition Hazardous
Materials Survey
Barton Road Bridge Removal and Road Construction
Project No. BRLS-5065(024); Bridge No. 54C-0379
Barton Road, West of Grand Terrace Road
Colton and Grand Terrace, San Bernardino County, CA
October 21, 2019
Terracon Project No. CB175228
Prepared for:
City of Colton, Public Works Department/Engineering Division Colton, California
Prepared by:
Terracon Consultants, Inc.
Tustin, California
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Packet Pg. 1412 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
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Packet Pg. 1413 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Responsive ■ Resourceful ■ Reliable i
TABLE OF CONTENTS
Page
1.0 INTRODUCTION .............................................................................................1
1.1 Project Objective ................................................................................ 1
2.0 BUILDING DESCRIPTION ..............................................................................1
3.0 FIELD ACTIVITIES ..........................................................................................2
3.1 Visual Assessment ............................................................................. 2
3.2 Physical Assessment .......................................................................... 2
3.3 Sample Collection ............................................................................... 2
3.4 Sample Analysis ................................................................................. 3
4.0 REGULATORY OVERVIEW ............................................................................3
5.0 FINDINGS AND RECOMMENDATIONS ..........................................................6
6.0 GENERAL COMMENTS ..................................................................................7
APPENDIX A HAZARDOUS MATERIALS SURVEY SAMPLE SUMMARY
APPENDIX B ASSUMED ASBESTOS CONTAINING MATERIALS
APPENDIX C ANALYTICAL LABORATORY DATA
APPENDIX D SAMPLE LOCATION DIAGRAM
APPENDIX E LICENSES AND CERTIFICATIONS
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Packet Pg. 1414 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Responsive ■ Resourceful ■ Reliable 1
PRE-DEMOLITION HAZARDOUS MATERIALS SURVEY REPORT
Barton Road Bridge
Barton Road and Grand Terrace Road
Colton, California 92313
Terracon Project No. CB175228
October 21, 2019
1.0 INTRODUCTION
Terracon Consultants, Inc. (Terracon) conducted a pre-demolition hazardous materials survey of the above referenced site located at Barton Road and Grand Terrace Road in Colton, California. The survey was conducted on August 6, 2019 by a State of California Certified Site Surveillance Technician (CSST) and California Department of Public Health (CDPH) certified lead inspector/assessor in general accordance with the CNS Engineering, Inc. Subconsultant Agreement dated May 24, 2019.
1.1 Project Objective
We understand this asbestos survey was requested due to the planned demolition of the above-mentioned section of Barton Road. EPA regulation 40 CFR 61, Subpart M, National Emission Standards for Hazardous Air Pollutants (NESHAP), prohibits the release of asbestos fibers to the atmosphere during renovation or demolition activities. The asbestos NESHAP requires that potentially regulated ACM (RACM) be identified, classified and quantified prior to planned disturbances or demolition activities.
The lead and chromium sampling was requested due to historical use of lead and chromium in traffic lane paints and thermoplastic striping (PTS). The concentrations of lead chromate in the PTS applied to roadways would classify waste PTS as hazardous.
2.0 SITE DESCRIPTION
The site consists of an approximately 1,100-foot length of an asphalt-paved, two-lane road, that spans the approximate distance between Grand Terrace Road (east of the site) and South Terrace Avenue (west of the site). The site is improved with the Barton Road bridge (Bridge No. 54C-0379), approximately 175-feet long by 25-feet wide, which was originally built in 1936 (on the central portion of the site), over a former abandoned railroad track (removed) and Union Pacific right-of-way, sidewalks (shutdown due to safety concerns), and easements (along the northern and southern perimeters of the site), and utilities.
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Packet Pg. 1415 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Pre-Demolition Hazardous Materials Survey
Barton Road Bridge Removal and Road Construction ■ Colton, California October 21, 2019 ■ Terracon Project No. CB175228
Responsive ■ Resourceful ■ Reliable 2
3.0 FIELD ACTIVITIES
The hazardous materials survey was conducted on August 6, 2019, by Mr. Mike Jarboe, a California Division of Occupational Safety and Health (DOSH) - Certified Site Surveillance Technicians (CSST) and a CDPH Lead Inspector/Assessor. A copy of Mr. Jarboe’s licenses are attached in Appendix E. A summary of the field activities is described below.
3.1 Visual Assessment
Terracon began the asbestos, lead and chromium sampling activities with a visual assessment, identification and inventory of readily visible and accessible homogeneous areas of suspect ACM and suspect lead and chromium-containing paints. A homogeneous area consists of building materials that appear similar throughout in terms of color and texture. The assessment was limited to visually accessible materials. Building materials identified as glass (includes fiberglass), wood, masonry, metal, plastic were not considered suspect ACM.
3.2 Physical Assessment
Asbestos
A physical assessment of each homogeneous area of suspect ACM was conducted to assess the friability and condition of the materials. A friable material is defined by the EPA as a material which can be crumbled, pulverized or reduced to powder by hand pressure when dry.
Friability was assessed by physically touching suspect materials.
Lead and Chromium Paint
A physical assessment of each suspect painted component and/or surface coating was conducted to determine its condition. The painted surfaces were assessed as intact, fair or damaged condition depending on degree of damage.
3.3 Sample Collection
Asbestos
Based on results of the visual observation, bulk samples of suspect ACM were collected in general accordance with AHERA sampling protocols. Representative samples of suspect materials were collected in each homogeneous area. Bulk samples were collected using wet methods as applicable to reduce the potential for fiber release. Samples were placed in sealable containers and labeled with unique sample numbers.
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Packet Pg. 1416 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Pre-Demolition Hazardous Materials Survey
Barton Road Bridge Removal and Road Construction ■ Colton, California October 21, 2019 ■ Terracon Project No. CB175228
Responsive ■ Resourceful ■ Reliable 3
Twenty-five (25) bulk samples were collected from seven (7) homogeneous materials. The asbestos survey sample summary can be found in Appendix A.
Lead and Chromium Paint
Eight (8) painted surfaces were sampled from the subject area scheduled for demolition.
General sampling locations are provided in Appendix A. The laboratory results of the suspect materials sampled are in Appendix C.
3.4 Sample Analysis
Asbestos
Bulk samples were submitted under chain of custody to EMLab P&K (EMLab) of Irvine, California for analysis by polarized light microscopy (PLM) per EPA methodology EPA/600/R93/116. EMLab is a laboratory accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) under the National Institute of Standards and Technology (NIST) for analysis by PLM.
Asbestos was not detected in the samples collected. The laboratory results and chain of custody for the suspect asbestos samples can be found in Appendix C.
Due to safety concerns, the black mastic located underneath the reflectors in the center of the road were assumed to contain asbestos.
Lead and Chromium
The paint samples collected for lead and chromium were delivered under chain-of-custody to Eurofins TestAmerica in Irvine, California. The samples were analyzed by Inductively Coupled Plasma spectroscopy in accordance to EPA Method 6010B.
Lead was detected in all of the samples collected. Chromium was detected in six (6) of the materials sampled. Due to safety concerns, the yellow paint striping in the center of the road was assumed to contain lead and chromium. The sample location summary can be found in Appendix A.
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Packet Pg. 1417 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Pre-Demolition Hazardous Materials Survey
Barton Road Bridge Removal and Road Construction ■ Colton, California October 21, 2019 ■ Terracon Project No. CB175228
Responsive ■ Resourceful ■ Reliable 4
4.0 REGULATORY OVERVIEW
Asbestos
As a consequence of the health hazard from inhalation of asbestos fibers, a body of federal and state regulations has been developed. Federal regulations pertaining to asbestos are included in AHERA (US EPA 40 CFR 763); NESHAP (EPA 40 CFR 61); OSHA Asbestos Standards (29 CFR 1910.1001 and 29 CFR 1926.1101), and ASHARA (Asbestos School Hazard Abatement Reauthorization Act). Many states have additional requirements including state-specific licensing and certification. In California, these regulations include, but are not limited to: Cal/OSHA in Title 8, Sections 1529 and 5208 and the South Coast Air Quality Management District (SCAQMD) Rule 1403.
The federal asbestos NESHAP standard (40 CFR Part 61, Subpart M) regulates asbestos fiber emissions and asbestos waste disposal practices. NESHAP also requires the identification and classification of asbestos removal in the South Coast Air Quality Management District (SCAQMD). Under NESHAP, ACM are classified as either friable (regulated ACM), Category I non-friable or Category II non-friable ACM. Friable materials are those that, when dry, may be crumbled, pulverized or reduced to powder by hand pressure. Category I non-friable ACM includes packings, gaskets, resilient floor coverings and asphalt roofing products containing more than 1% asbestos. Category II non-friable ACM are any materials other than Category I materials that contain more than 1% asbestos.
Friable ACM, along with Category I and Category II non-friable ACM, which is in poor condition and has become friable or which will be subjected to drilling, sanding, grinding, cutting or abrading and which could be crushed or pulverized during anticipated renovation or demolition activities are considered regulated ACM (RACM).
Building materials confirmed to be ACM through the collection of bulk sampling and subsequent laboratory analysis, or presumed ACM, must be removed prior to intentional disturbance during planned renovation/demolition activities. Asbestos abatement must be conducted by Cal/OSHA-accredited asbestos abatement contractors. Third-party air monitoring is recommended during the abatement activities.
Cal/OSHA requires that only properly licensed and certified asbestos abatement contractors are allowed to remove ACM. As per NESHAP, all RACM shall be removed from a facility being demolished or renovated before any non-burning demolition or renovation begins that would break up, dislodge, or similarly disturb the material or preclude access to the material for subsequent removal.
The federal OSHA Asbestos standard for construction (29 CFR 1926.1101) and the Cal/OSHA asbestos standard for general industry and the construction industry (CCR Title 8, Sections 5208 and 1529, respectively) regulate workplace exposure to asbestos. Both the federal
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Barton Road Bridge Removal and Road Construction ■ Colton, California October 21, 2019 ■ Terracon Project No. CB175228
Responsive ■ Resourceful ■ Reliable 5
OSHA and Cal/OSHA standards require that employee exposure to airborne asbestos fibers be maintained below 0.1 asbestos fibers per cubic centimeter of air (0.1 f/cc) as an eight-hour time weighted average. The federal OSHA and Cal/OSHA standards classifies construction and maintenance activities which could disturb ACM, and specifies work practices and precautions which employers must follow when engaging in each class of regulated work.
However, workers who deliberately disturb any amount of asbestos should have pertinent training and wear proper personal protective equipment according to federal and state regulatory requirements (i.e., Cal/OSHA 8 CCR 1529 (g) (1) through (9) for Class I, II and III work).
Asbestos containing construction materials (ACCM) is a term developed by Cal/OSHA out of concern for non-hazardous building materials used inside and outside a building that contain less than 1% asbestos. The definition of ACCM includes any manufactured building material that has more than one-tenth of 1% (>0.1%) asbestos content. The SCAQMD requires point counting of friable samples of ACM at concentrations of less than 10% to determine more accurately the content of asbestos and proper classification of the material for proper abatement and disposal requirements. Alternatively, materials may be presumed as ACMs. If the material is less than one tenth of 1%, the material is not regulated by the EPA however Cal/OSHA worker protection regulations apply if any asbestos is detected.
Lead Paint
Detectable lead quantities may constitute a lead dust hazard during renovation/demolition activities. Personnel performing renovation/demolition activities that may disturb painted components with concentrations of lead above the designated analytical detection limit should comply with all current OSHA regulations to minimize employee exposure. OSHA regulates construction activities that disturb lead-containing material regardless of the concentration.
Currently, any proposed renovation/demolition is subject to the OSHA regulations (29 CFR 1926.62 – Lead Exposure in Construction).
In California, the lead standard was adopted by Cal-OSHA as Title 8 CCR, Section 1532.1 (Occupational Lead Poisoning Prevention Program). The California Department of Public Health also regulates accreditations, certifications and work practices for activities involving lead-containing materials under Title 17 CCR. The federal and Cal-OSHA regulations define specific training requirements, engineering controls and working practices for construction personnel subject to this standard. Occupational exposure to lead occurring in the course of construction work, including maintenance activities, painting, alteration and repairs is subject to the OSHA Lead Exposure in Construction standard.
Contractors and employers are required to comply with 29 CFR 1926.62 and Title 8 CCR 1532.1. Construction work covered by federal and Cal-OSHA standards includes any repair or renovation activities or other activities that disturb in-place lead-containing materials.
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Packet Pg. 1419 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Pre-Demolition Hazardous Materials Survey
Barton Road Bridge Removal and Road Construction ■ Colton, California October 21, 2019 ■ Terracon Project No. CB175228
Responsive ■ Resourceful ■ Reliable 6
Employers must assure that no employee will be exposed to lead at concentrations greater than 50 micrograms per cubic meter (mg/m3) averaged over an eight-hour period without adequate protection. The Federal and California OSHA Standards also establish an action level of 30 mg/m3, which if exceeded, triggers the requirement for medical monitoring.
Proper waste stream categorization is required for the disposal of all lead containing materials and painted construction debris with total lead content that exceeds 50 ppm. The debris should be classified as hazardous waste if lead waste concentrations exceed either the total lead concentration or soluble lead concentration regulatory limits. Total lead concentration is determined by Total Threshold Limit Concentration (TTLC). Soluble or leachable lead is determined by the Soluble Threshold Limit Concentration (STLC, California required test) and/or Toxicity Characteristic Leaching Procedure (TCLP) (Federal EPA required test).
Regulatory limits characterize a lead waste as a hazardous waste if lead concentrations exceed 1,000 ppm by TTLC or 5 milligrams per liter by STLC or TCLP.
The above overview is not intended to be inclusive of all potentially pertinent regulatory information. The relevant EPA and OSHA standards should be consulted prior to undertaking activities involving the demolition, renovation, or maintenance of surfaces coated with lead containing paints.
Chromium in Paint
Similar to the use of lead paint, chrome yellow (containing lead chromate) was used as the primary yellow pigment in traffic lane paints and thermoplastic striping. In California, lead chromate traffic striping has been phased out of traffic paint between 1997 and 2000 and was phased out from thermoplastic striping by 2004. The concentrations of lead chromate in the traffic lane paints and thermoplastic striping applied to roadways is considered hazardous waste. During construction activities, chromium is considered to have potential to impact the environment and workers on site, as well as affect disposal methods.
5.0 FINDINGS AND RECOMMENDATIONS
Asbestos
Asbestos was not detected in the samples collected. The lab results and chain of custody for the suspect asbestos samples can be found in Appendix C.
Due to safety concerns, the black mastic located underneath the reflectors in the center of the road were assumed to contain asbestos.
7.d
Packet Pg. 1420 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Pre-Demolition Hazardous Materials Survey
Barton Road Bridge Removal and Road Construction ■ Colton, California October 21, 2019 ■ Terracon Project No. CB175228
Responsive ■ Resourceful ■ Reliable 7
Prior to demolition the assumed ACMs must be sampled to determine asbestos content, or must be removed by an asbestos abatement contractor licensed with the California State Contractor License Board (CSLB) and registered with the Division of Occupational Safety and Health (DOSH). Prior notification of the asbestos removal is required to DOSH. Removal of ACMs must be performed in accordance with Cal/OSHA (Title 8 CCR 1529) and SCAQMD Rule 1403
Appendix A provides information about sampling locations of the suspect ACM. A summary of the assumed ACM can be found in Appendix B. The lab results and chain of custody for the suspect ACMs can be found in Appendix C.
Lead and Chromium Paint
Based on the results of laboratory analysis, all of the sampled materials were found to contain lead in concentrations above the laboratory limit of detection. Based on the findings of this survey, six (6) of the samples meet the definition of lead-based paint (LBP). The other two (2) samples with detectable amounts of lead are considered lead-containing paint (LCP).
Construction impacting LBP or LCP is regulated by Cal/OSHA Lead in Construction Standard (8 CCR 1532.1).
Based on the laboratory analysis, six (6) of the sampling materials were found to contain chromium in concentrations above the laboratory limit of detection.
The laboratory results and chain of custody for the suspect lead and chromium paint samples can be found in Appendix C.
6.0 GENERAL COMMENTS
This pre-demolition hazardous materials survey was conducted in a manner consistent with the level of care and skill ordinarily exercised by members of the profession currently practicing under similar conditions in the same locale. The results, findings, conclusions and recommendations expressed in this report are based on conditions observed during our survey of the building. The information contained in this report is relevant to the date on which this survey was performed, and should not be relied upon to represent conditions at a later date.
This report has been prepared on behalf of and exclusively for use by CNS Engineers, Inc. for specific application to their project as discussed. This report is not a bidding document.
Contractors or consultants reviewing this report must draw their own conclusions regarding further investigation or remediation deemed necessary. Terracon does not warrant the work of regulatory agencies, laboratories or other third parties supplying information which may have been used in the preparation of this report. No warranty, express or implied is made.
7.d
Packet Pg. 1421 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
APPENDIX A
HAZARDOUS MATERIALS SURVEY SAMPLE LOCATION SUMMARY
7.d
Packet Pg. 1422 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction HA Sample No. Description Sample Location Result
MS5-01 Concrete Abutment East None Detected (ND)
MS5-02 Concrete Abutment East ND
MS5-03 Concrete Abutment West ND
MS5-04 Concrete Retaining Wall Northeast ND
MS5-05 Concrete Retaining Wall Southwest ND
MS5-06 Concrete Retaining Wall Southwest ND
MS5-07 Concrete Encase Around Valve & Pipe East ND
MS5-08 Concrete Encase Around Valve & Pipe East ND
MS5-09 Concrete Encase Around Valve & Pipe East ND
MS5-10 Black Asphalt Road Northeast ND
MS5-11 Black Asphalt Road Northeast ND
MS5-12 Black Asphalt Road Northwest ND
MS5-13 Black Asphalt Road Southeast ND
MS5-14 Black Asphalt Road Southeast ND
MS5-15 Black Asphalt Road Southwest ND
MS5-16 Black Asphalt Road Northeast ND
MS5-17 Black Creosote Southeast ND
MS5-18 Black Creosote Southeast ND
MS5-19 Black Creosote East ND
MS5-20 Multicolor Texture Coat on Abutment East ND
MS5-21 Multicolor Texture Coat on Abutment East ND
MS5-22 Multicolor Texture Coat on Abutment West ND
PI5-23 Black Pipe Wrap on 12" Diameter Pipe East ND
PI5-24 Black Pipe Wrap on 12" Diameter Pipe East ND
PI5-25 Black Pipe Wrap on 12" Diameter Pipe West ND
5 6
7 4
APPENDIX A
Barton Road Bridge
Barton Road and Grand Terrace Road
Colton, California
ASBESTOS SURVEY SAMPLE LOCATION SUMMARY
1 2
3 7.d
Packet Pg. 1423 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Sample ID Description Sample Location Condition Result
Pb-01 Gray Paint Metal Guard Rail Good Lead - 73,000 ppm Chromium - 1,600 ppm
Pb-02 Gray Paint Lower Guard Rail Good Lead - 59,000 ppm Chromium - 590 ppm
Pb-03 White Paint Concrete w/ Valve Under
Bridge Good Lead - 81,000 ppm
Chromium - 1,400 ppm
Pb-04 Yellow Paint Gas Pipe Under Bridge Good Lead - 420 ppm Chromium - 8 ppm
Pb-05 Gray Paint Cross Beams (Metal) Good Lead - 41,000 ppm Chromium - 780 ppm
Pb-06 White Paint Metal Bollard on Road
Northeast Good Lead - 43,000 ppm
Chromium - ND
Pb-07 White Paint Wood Bollard on Road
Northeast Good Lead - 25,000 ppm
Chromium - ND
Pb-08 Red with Blue Paint Curb Northwest Good Lead - 61 ppm Chromium - 12 ppm
APPENDIX A
Barton Road Bridge
Barton Road and Grand Terrace Road
Colton, California
LEAD AND CHROMIUM SURVEY SAMPLE LOCATION SUMMARY
7.d
Packet Pg. 1424 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
APPENDIX B
ASSUMED ASBESTOS CONTAINING MATERIALS
7.d
Packet Pg. 1425 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction HA No. Description Material Location Percent/Type Asbestos NESHAP Classification Condition Estimated Quantity*
NA Black Mastic Under
Reflectors on Road Center of Road Assumed (Not Sampled) Cat. II Good 5 SF
APPENDIX B
Barton Road Bridge
Barton Road and Grand Terrace Road
Colton, California
ASSUMED ASBESTOS-CONTAINING MATERIALS
*Quantities listed are approximate for the total square footage of the building. Total quantities of materials to be abated is to be determined by the contractor. CH=Chrysotile
RACM = Regulated Asbestos Containing Material, Cat. I = Category I Non-friable asbestos containing material, Cat. II – Category II Non-friable asbestos containing material, NA = Not Applicable
7.d
Packet Pg. 1426 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
APPENDIX C
ANALYTICAL LABORATORY DATA
7.d
Packet Pg. 1427 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Approved by:
Approved Signatory
Danny Li
Report for:
Danish Mansoor
Terracon Consultants, Inc. - Tustin, CA
1421 Edinger Ave
suite C
Tustin, CA 92780
Regarding: Project: CB175228; Barton Road Bridge, Barton Rd/Grand Terrace Rd, Colton, CA EML ID: 2222860
All samples were received in acceptable condition unless noted in the Report Comments portion in the body of the report. The results relate only to the samples as received. The results include an inherent uncertainty of measurement associated with estimating percentages by polarized light microscopy. Measurement uncertainty data for sample results with >1% asbestos concentration can be provided when requested.
EMLab P&K ("the Company") shall have no liability to the client or the client's customer with respect to decisions or recommendations made, actions taken or courses of conduct implemented by either the client or the client's customer as a result of or based upon the Test Results. In no event shall the Company be liable to the client with respect to the Test Results except for the Company's own willful misconduct or gross negligence nor shall the Company be liable for incidental or consequential damages or lost profits or revenues to the fullest extent such liability may be disclaimed by law, even if the Company has been advised of the possibility of such damages, lost profits or lost revenues. In no event shall the Company's liability with respect to the Test Results exceed the amount paid to the Company by the client therefor.
Dates of Analysis:
Asbestos PLM: 08-13-2019
Service SOPs: Asbestos PLM (EPA 40CFR App E to Sub E of Part 763 & EPA METHOD 600/R-93-116, SOP EM-AS-S-1267) EMLab P&K, LLC EMLab ID: 2222860, Page 1 of 8
7.d
Packet Pg. 1428 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction EMLab P&K
17461 Derian Ave, Suite 100, Irvine, CA 92614
(866) 888-6653 Fax (623) 780-7695 www.emlab.com
Client: Terracon Consultants, Inc. - Tustin, CA
C/O: Danish Mansoor
Re: CB175228; Barton Road Bridge, Barton Rd/
Grand Terrace Rd, Colton, CA
Date of Sampling: 08-06-2019
Date of Receipt: 08-06-2019
Date of Report: 08-13-2019
ASBESTOS PLM REPORT
Total Samples Submitted: 25
Total Samples Analyzed: 25
Total Samples with Layer Asbestos Content > 1%: 0
Location: 01-MS5-01, Concrete abatement, East Lab ID-Version‡: 10565637-1 Sample Layers Asbestos Content
Gray Concrete ND
Sample Composite Homogeneity: Good
Location: 01-MS5-02, Concrete abatement, East Lab ID-Version‡: 10565638-1 Sample Layers Asbestos Content
Gray Concrete ND
Sample Composite Homogeneity: Good
Location: 01-MS5-03, Concrete abatement, West Lab ID-Version‡: 10565639-1 Sample Layers Asbestos Content
Gray Concrete ND
Sample Composite Homogeneity: Good
Location: 02-MS5-04, Concrete retaining wall, N/E Lab ID-Version‡: 10565640-1 Sample Layers Asbestos Content
Gray Concrete ND
Sample Composite Homogeneity: Good
EMLab P&K, LLC EMLab ID: 2222860, Page 2 of 8
The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. EMLab P&K reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.
Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.
‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x".
7.d
Packet Pg. 1429 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction EMLab P&K
17461 Derian Ave, Suite 100, Irvine, CA 92614
(866) 888-6653 Fax (623) 780-7695 www.emlab.com
Client: Terracon Consultants, Inc. - Tustin, CA
C/O: Danish Mansoor
Re: CB175228; Barton Road Bridge, Barton Rd/
Grand Terrace Rd, Colton, CA
Date of Sampling: 08-06-2019
Date of Receipt: 08-06-2019
Date of Report: 08-13-2019
ASBESTOS PLM REPORT
Location: 02-MS5-05, Concrete retaining wall, S/W Lab ID-Version‡: 10565641-1 Sample Layers Asbestos Content
Gray Concrete ND
Sample Composite Homogeneity: Good
EMLab P&K, LLC EMLab ID: 2222860, Page 3 of 8
The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. EMLab P&K reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.
Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.
‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x".
7.d
Packet Pg. 1430 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction EMLab P&K
17461 Derian Ave, Suite 100, Irvine, CA 92614
(866) 888-6653 Fax (623) 780-7695 www.emlab.com
Client: Terracon Consultants, Inc. - Tustin, CA
C/O: Danish Mansoor
Re: CB175228; Barton Road Bridge, Barton Rd/
Grand Terrace Rd, Colton, CA
Date of Sampling: 08-06-2019
Date of Receipt: 08-06-2019
Date of Report: 08-13-2019
ASBESTOS PLM REPORT
Location: 02-MS5-06, Concrete retaining wall, S/W Lab ID-Version‡: 10565642-1 Sample Layers Asbestos Content
Gray Concrete ND
Sample Composite Homogeneity: Good
Location: 03-MS5-07, Concrete encase around valve and pipe, East Lab ID-Version‡: 10565643-1 Sample Layers Asbestos Content
Gray Concrete ND
Sample Composite Homogeneity: Good
Location: 03-MS5-08, Concrete encase around valve and pipe, East Lab ID-Version‡: 10565644-1 Sample Layers Asbestos Content
Gray Concrete ND
Sample Composite Homogeneity: Good
Location: 03-MS5-09, Concrete encase around valve and pipe, East Lab ID-Version‡: 10565645-1 Sample Layers Asbestos Content
Gray Concrete ND
Sample Composite Homogeneity: Good
EMLab P&K, LLC EMLab ID: 2222860, Page 4 of 8
The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. EMLab P&K reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.
Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.
‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x".
7.d
Packet Pg. 1431 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction EMLab P&K
17461 Derian Ave, Suite 100, Irvine, CA 92614
(866) 888-6653 Fax (623) 780-7695 www.emlab.com
Client: Terracon Consultants, Inc. - Tustin, CA
C/O: Danish Mansoor
Re: CB175228; Barton Road Bridge, Barton Rd/
Grand Terrace Rd, Colton, CA
Date of Sampling: 08-06-2019
Date of Receipt: 08-06-2019
Date of Report: 08-13-2019
ASBESTOS PLM REPORT
Location: 04-MS5-10, Black asphalt road, N/E Lab ID-Version‡: 10565646-1 Sample Layers Asbestos Content
Black Asphalt ND
Sample Composite Homogeneity: Moderate
Location: 04-MS5-11, Black asphalt road, N/E Lab ID-Version‡: 10565647-1 Sample Layers Asbestos Content
Black Asphalt ND
Sample Composite Homogeneity: Moderate
Location: 04-MS5-12, Black asphalt road, N/W Lab ID-Version‡: 10565648-1 Sample Layers Asbestos Content
Black Asphalt ND
Sample Composite Homogeneity: Moderate
Location: 04-MS5-13, Black asphalt road, S/E Lab ID-Version‡: 10565649-1 Sample Layers Asbestos Content
Black Asphalt ND
Sample Composite Homogeneity: Moderate
EMLab P&K, LLC EMLab ID: 2222860, Page 5 of 8
The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. EMLab P&K reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.
Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.
‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x".
7.d
Packet Pg. 1432 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction EMLab P&K
17461 Derian Ave, Suite 100, Irvine, CA 92614
(866) 888-6653 Fax (623) 780-7695 www.emlab.com
Client: Terracon Consultants, Inc. - Tustin, CA
C/O: Danish Mansoor
Re: CB175228; Barton Road Bridge, Barton Rd/
Grand Terrace Rd, Colton, CA
Date of Sampling: 08-06-2019
Date of Receipt: 08-06-2019
Date of Report: 08-13-2019
ASBESTOS PLM REPORT
Location: 04-MS5-14, Black asphalt road, S/E Lab ID-Version‡: 10565650-1 Sample Layers Asbestos Content
Black Asphalt ND
Sample Composite Homogeneity: Moderate
Location: 04-MS5-15, Black asphalt road, S/W Lab ID-Version‡: 10565651-1 Sample Layers Asbestos Content
Black Asphalt ND
Sample Composite Homogeneity: Moderate
Location: 04-MS5-16, Black asphalt road, S/W Lab ID-Version‡: 10565652-1 Sample Layers Asbestos Content
Black Asphalt ND
Sample Composite Homogeneity: Moderate
Location: 05-MS5-17, Black cresote, S/E Lab ID-Version‡: 10565653-1 Sample Layers Asbestos Content
Black Tar ND
Sample Composite Homogeneity: Good
EMLab P&K, LLC EMLab ID: 2222860, Page 6 of 8
The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. EMLab P&K reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.
Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.
‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x".
7.d
Packet Pg. 1433 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction EMLab P&K
17461 Derian Ave, Suite 100, Irvine, CA 92614
(866) 888-6653 Fax (623) 780-7695 www.emlab.com
Client: Terracon Consultants, Inc. - Tustin, CA
C/O: Danish Mansoor
Re: CB175228; Barton Road Bridge, Barton Rd/
Grand Terrace Rd, Colton, CA
Date of Sampling: 08-06-2019
Date of Receipt: 08-06-2019
Date of Report: 08-13-2019
ASBESTOS PLM REPORT
Location: 05-MS5-18, Black cresote, S/E Lab ID-Version‡: 10565654-1 Sample Layers Asbestos Content
Black Tar ND
Sample Composite Homogeneity: Good
Location: 05-MS5-19, Black cresote, East Lab ID-Version‡: 10565655-1 Sample Layers Asbestos Content
Black Tar ND
Sample Composite Homogeneity: Good
Location: 06-MS5-20, Multi color texture coat on abatement, East Lab ID-Version‡: 10565656-1 Sample Layers Asbestos Content
Gray Coating with Multicolored Paint ND
Sample Composite Homogeneity: Good
Location: 06-MS5-21, Multi color texture coat on abatement, East Lab ID-Version‡: 10565657-1 Sample Layers Asbestos Content
Gray Coating with Multicolored Paint ND
Sample Composite Homogeneity: Good
EMLab P&K, LLC EMLab ID: 2222860, Page 7 of 8
The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. EMLab P&K reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.
Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.
‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x".
7.d
Packet Pg. 1434 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction EMLab P&K
17461 Derian Ave, Suite 100, Irvine, CA 92614
(866) 888-6653 Fax (623) 780-7695 www.emlab.com
Client: Terracon Consultants, Inc. - Tustin, CA
C/O: Danish Mansoor
Re: CB175228; Barton Road Bridge, Barton Rd/
Grand Terrace Rd, Colton, CA
Date of Sampling: 08-06-2019
Date of Receipt: 08-06-2019
Date of Report: 08-13-2019
ASBESTOS PLM REPORT
Location: 06-MS5-22, Multi color texture coat on abatement, West Lab ID-Version‡: 10565658-1 Sample Layers Asbestos Content
Gray Coating with Multicolored Paint ND
Sample Composite Homogeneity: Good
Location: 07-MS5-23, Black pipe wrap on 12" diameter pipe, East Lab ID-Version‡: 10565659-1 Sample Layers Asbestos Content
Black Tar ND
Black Felt ND
Composite Non-Asbestos Content: 15% Cellulose
5% Synthetic Fibers
Sample Composite Homogeneity: Moderate
Location: 07-MS5-24, Black pipe wrap on 12" diameter pipe, East Lab ID-Version‡: 10565660-1 Sample Layers Asbestos Content
Black Tar ND
Black Felt ND
Composite Non-Asbestos Content: 15% Cellulose
5% Synthetic Fibers
Sample Composite Homogeneity: Moderate
Location: 07-MS5-25, Black pipe wrap on 12" diameter pipe, West Lab ID-Version‡: 10565661-1 Sample Layers Asbestos Content
Black Tar ND
Black Felt ND
Composite Non-Asbestos Content: 15% Cellulose
5% Synthetic Fibers
Sample Composite Homogeneity: Moderate
EMLab P&K, LLC EMLab ID: 2222860, Page 8 of 8
The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. EMLab P&K reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.
Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.
‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x".
7.d
Packet Pg. 1435 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
7.d
Packet Pg. 1436
Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge
7.d
Packet Pg. 1437
Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge
ANALYTICAL REPORT
Eurofins TestAmerica, Irvine
17461 Derian Ave
Suite 100
Irvine, CA 92614-5817
Tel: (949)261-1022
Laboratory Job ID: 440-247455-1
Client Project/Site: 2222861
For:
EMLab P&K
Bascom Airport Executive Suites
17461 Derian Ave - Suite 100
Irvine, California 92614
Attn: Angela Hetherington
Authorized for release by:
8/12/2019 10:02:03 AM
Janice Hsu, Project Manager I
(949)260-3263
[email protected]
The test results in this report meet all 2003 NELAC and 2009 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page.
This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature.
Results relate only to the items tested and the sample(s) as received by the laboratory. 1 2
3 4
5 6
7 8
9 10
11 12
7.d
Packet Pg. 1438 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Table of Contents
Client: EMLab P&K
Project/Site: 2222861
Laboratory Job ID: 440-247455-1
Eurofins TestAmerica, Irvine
8/12/2019
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 1 2
3 4
5 6
7 8
9 10
11 12
7.d
Packet Pg. 1439 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Sample Summary
Client: EMLab P&K Job ID: 440-247455-1
Project/Site: 2222861
Lab Sample ID Client Sample ID Matrix Collected Received Asset ID 440-247455-1 Pb-01 Solid 08/06/19 00:01 08/07/19 12:45
440-247455-2 Pb-02 Solid 08/06/19 00:01 08/07/19 12:45
440-247455-3 Pb-03 Solid 08/06/19 00:01 08/07/19 12:45
440-247455-4 Pb-04 Solid 08/06/19 00:01 08/07/19 12:45
440-247455-5 Pb-05 Solid 08/06/19 00:01 08/07/19 12:45
440-247455-6 Pb-06 Solid 08/06/19 00:01 08/07/19 12:45
440-247455-7 Pb-07 Solid 08/06/19 00:01 08/07/19 12:45
440-247455-8 Pb-08 Solid 08/06/19 00:01 08/07/19 12:45
Eurofins TestAmerica, Irvine
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7.d
Packet Pg. 1440 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Case Narrative
Client: EMLab P&K Job ID: 440-247455-1
Project/Site: 2222861
Job ID: 440-247455-1
Laboratory: Eurofins TestAmerica, Irvine
Narrative
Job Narrative
440-247455-1
Comments
No additional comments.
Receipt
The samples were received on 8/7/2019 12:45 PM; the samples arrived in good condition, properly preserved and, where required, on ice.
The temperature of the cooler at receipt was 23.2º C.
Metals
Method(s) 3050B: Elevated reporting limits are provided for the following samples due to insufficient sample provided for 440-247453-A-1,2 and 440-247455-A-1,2,3,4,7,8 preparation/analysis: Pb-01 (440-247455-1), Pb-02 (440-247455-2), Pb-03 (440-247455-3), Pb-04 (440-247455-4), Pb-07 (440-247455-7) and Pb-08 (440-247455-8).
Method(s) 6010B: The continuing calibration blank (CCB) for 440-562346 contained Lead above the reporting limit (RL). All reported samples associated with this CCB were either ND for this analyte or contained this analyte at a concentration greater than 10X the value found in the CCB; therefore, re-analysis of samples was not performed.
Method(s) 6010B: The following samples were diluted due to the nature of the sample matrix: Pb-06 (440-247455-6) and Pb-07 (440-247455-7). Elevated reporting limits (RLs) are provided.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
Eurofins TestAmerica, Irvine Page 4 of 15 8/12/2019
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Packet Pg. 1441 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Client Sample Results
Client: EMLab P&K Job ID: 440-247455-1
Project/Site: 2222861
Client Sample ID: Pb-01 Lab Sample ID: 440-247455-1
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Method: 6010B - Metals (ICP)
RL
Lead 73000 ^ 56 mg/Kg 08/07/19 16:55 08/09/19 16:47 50
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Chromium 1600 28 mg/Kg 08/07/19 16:55 08/09/19 16:47 50 Client Sample ID: Pb-02 Lab Sample ID: 440-247455-2
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Method: 6010B - Metals (ICP)
RL
Lead 59000 ^ 75 mg/Kg 08/07/19 16:55 08/09/19 16:49 100 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Chromium 590 38 mg/Kg 08/07/19 16:55 08/09/19 16:49 100 Client Sample ID: Pb-03 Lab Sample ID: 440-247455-3
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Method: 6010B - Metals (ICP)
RL
Lead 81000 ^ 91 mg/Kg 08/07/19 16:55 08/09/19 16:51 50
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Chromium 1400 45 mg/Kg 08/07/19 16:55 08/09/19 16:51 50 Client Sample ID: Pb-04 Lab Sample ID: 440-247455-4
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Method: 6010B - Metals (ICP)
RL
Lead 420 8.0 mg/Kg 08/07/19 16:55 08/09/19 17:26 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Chromium 8.0 4.0 mg/Kg 08/07/19 16:55 08/09/19 17:26 5
Client Sample ID: Pb-05 Lab Sample ID: 440-247455-5
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Method: 6010B - Metals (ICP)
RL
Lead 41000 ^ 40 mg/Kg 08/07/19 16:55 08/09/19 16:56 100 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Chromium 780 20 mg/Kg 08/07/19 16:55 08/09/19 16:56 100 Client Sample ID: Pb-06 Lab Sample ID: 440-247455-6
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Method: 6010B - Metals (ICP)
RL
Lead 43000 ^ 40 mg/Kg 08/07/19 16:55 08/09/19 16:59 100 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Chromium ND 20 mg/Kg 08/07/19 16:55 08/09/19 16:59 100
Eurofins TestAmerica, Irvine
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7.d
Packet Pg. 1442 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Client Sample Results
Client: EMLab P&K Job ID: 440-247455-1
Project/Site: 2222861
Client Sample ID: Pb-07 Lab Sample ID: 440-247455-7
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Method: 6010B - Metals (ICP)
RL
Lead 25000 ^ 20 mg/Kg 08/07/19 16:55 08/09/19 17:01 50
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Chromium ND 9.9 mg/Kg 08/07/19 16:55 08/09/19 17:01 50
Client Sample ID: Pb-08 Lab Sample ID: 440-247455-8
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Method: 6010B - Metals (ICP)
RL
Lead 61 ^ 2.0 mg/Kg 08/07/19 16:55 08/09/19 17:08 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Chromium 12 0.98 mg/Kg 08/07/19 16:55 08/09/19 17:08 5
Eurofins TestAmerica, Irvine
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7.d
Packet Pg. 1443 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Method Summary
Client: EMLab P&K Job ID: 440-247455-1
Project/Site: 2222861
Method Method Description Protocol Laboratory
6010B Metals (ICP) SW846 TAL IRV
3050B Preparation, Metals SW846 TAL IRV
Protocol References:
SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.
Laboratory References:
TAL IRV = Eurofins TestAmerica, Irvine, 17461 Derian Ave, Suite 100, Irvine, CA 92614-5817, TEL (949)261-1022 Eurofins TestAmerica, Irvine
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7.d
Packet Pg. 1444 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Lab Chronicle
Client: EMLab P&K Job ID: 440-247455-1
Project/Site: 2222861
Client Sample ID: Pb-01 Lab Sample ID: 440-247455-1
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Prep 3050B 561874 08/07/19 16:55 DT TAL IRV
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 0.36 g 25 mL
Total/NA Analysis 6010B 50 562346 08/09/19 16:47 P1R TAL IRV Client Sample ID: Pb-02 Lab Sample ID: 440-247455-2
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Prep 3050B 561874 08/07/19 16:55 DT TAL IRV
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 0.53 g 25 mL
Total/NA Analysis 6010B 100 562346 08/09/19 16:49 P1R TAL IRV Client Sample ID: Pb-03 Lab Sample ID: 440-247455-3
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Prep 3050B 561874 08/07/19 16:55 DT TAL IRV
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 0.22 g 25 mL
Total/NA Analysis 6010B 50 562346 08/09/19 16:51 P1R TAL IRV Client Sample ID: Pb-04 Lab Sample ID: 440-247455-4
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Prep 3050B 561874 08/07/19 16:55 DT TAL IRV
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 0.25 g 25 mL
Total/NA Analysis 6010B 5 562346 08/09/19 17:26 P1R TAL IRV Client Sample ID: Pb-05 Lab Sample ID: 440-247455-5
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Prep 3050B 561874 08/07/19 16:55 DT TAL IRV
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 2.01 g 50 mL
Total/NA Analysis 6010B 100 562346 08/09/19 16:56 P1R TAL IRV Client Sample ID: Pb-06 Lab Sample ID: 440-247455-6
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Prep 3050B 561874 08/07/19 16:55 DT TAL IRV
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 1.98 g 50 mL
Total/NA Analysis 6010B 100 562346 08/09/19 16:59 P1R TAL IRV Eurofins TestAmerica, Irvine
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7.d
Packet Pg. 1445 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Lab Chronicle
Client: EMLab P&K Job ID: 440-247455-1
Project/Site: 2222861
Client Sample ID: Pb-07 Lab Sample ID: 440-247455-7
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Prep 3050B 561874 08/07/19 16:55 DT TAL IRV
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 1.01 g 25 mL
Total/NA Analysis 6010B 50 562346 08/09/19 17:01 P1R TAL IRV Client Sample ID: Pb-08 Lab Sample ID: 440-247455-8
Date Collected: 08/06/19 00:01 Matrix: Solid
Date Received: 08/07/19 12:45
Prep 3050B 561874 08/07/19 16:55 DT TAL IRV
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 1.02 g 25 mL
Total/NA Analysis 6010B 5 562346 08/09/19 17:08 P1R TAL IRV Laboratory References:
TAL IRV = Eurofins TestAmerica, Irvine, 17461 Derian Ave, Suite 100, Irvine, CA 92614-5817, TEL (949)261-1022 Eurofins TestAmerica, Irvine
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7.d
Packet Pg. 1446 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction QC Association Summary
Client: EMLab P&K Job ID: 440-247455-1
Project/Site: 2222861
Metals
Prep Batch: 561874
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 440-247455-1 Pb-01 Total/NA Solid 3050B
440-247455-2 Pb-02 Total/NA Solid 3050B
440-247455-3 Pb-03 Total/NA Solid 3050B
440-247455-4 Pb-04 Total/NA Solid 3050B
440-247455-5 Pb-05 Total/NA Solid 3050B
440-247455-6 Pb-06 Total/NA Solid 3050B
440-247455-7 Pb-07 Total/NA Solid 3050B
440-247455-8 Pb-08 Total/NA Solid 3050B
Analysis Batch: 562346
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 440-247455-1 Pb-01 Total/NA Solid 6010B 561874
440-247455-2 Pb-02 Total/NA Solid 6010B 561874
440-247455-3 Pb-03 Total/NA Solid 6010B 561874
440-247455-4 Pb-04 Total/NA Solid 6010B 561874
440-247455-5 Pb-05 Total/NA Solid 6010B 561874
440-247455-6 Pb-06 Total/NA Solid 6010B 561874
440-247455-7 Pb-07 Total/NA Solid 6010B 561874
440-247455-8 Pb-08 Total/NA Solid 6010B 561874
Eurofins TestAmerica, Irvine
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7.d
Packet Pg. 1447 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Definitions/Glossary
Client: EMLab P&K Job ID: 440-247455-1
Project/Site: 2222861
Qualifiers
Metals
Qualifier Description
^ ICV,CCV,ICB,CCB, ISA, ISB, CRI, CRA, DLCK or MRL standard: Instrument related QC is outside acceptance limits.
Qualifier
Glossary
These commonly used abbreviations may or may not be present in this report. ¤ Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation
%R Percent Recovery
CFL Contains Free Liquid
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown) PQL Practical Quantitation Limit
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
Eurofins TestAmerica, Irvine
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7.d
Packet Pg. 1448 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Accreditation/Certification Summary
Client: EMLab P&K Job ID: 440-247455-1
Project/Site: 2222861
Laboratory: Eurofins TestAmerica, Irvine
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.
Authority Program EPA Region Identification Number Expiration Date California State Program 9 CA ELAP 2706 06-30-19 *
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification.
Analysis Method Prep Method Matrix Analyte
Eurofins TestAmerica, Irvine
* Accreditation/Certification renewal pending - accreditation/certification considered valid.
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7.d
Packet Pg. 1449 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
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7.d
Packet Pg. 1450
Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge
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7.d
Packet Pg. 1451
Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Login Sample Receipt Checklist
Client: EMLab P&K Job Number: 440-247455-1
Login Number: 247455
Question Answer Comment
Creator: Escalante, Maria I
List Source: Eurofins TestAmerica, Irvine
List Number: 1
Radioactivity wasn't checked or is </= background as measured by a survey True meter.
The cooler's custody seal, if present, is intact. N/A Not present Sample custody seals, if present, are intact. N/A Not Present The cooler or samples do not appear to have been compromised or True tampered with.
Samples were received on ice. N/A Thermal preservation not required.
Cooler Temperature is acceptable. True
Cooler Temperature is recorded. True
COC is present. True
COC is filled out in ink and legible. True
COC is filled out with all pertinent information. True
Is the Field Sampler's name present on COC? True
There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs)
Sample containers have legible labels. True
Containers are not broken or leaking. True
Sample collection date/times are provided. True
Appropriate sample containers are used. True
Sample bottles are completely filled. True
Sample Preservation Verified. N/A
There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs
Containers requiring zero headspace have no headspace or bubble is True <6mm (1/4").
Multiphasic samples are not present. True
Samples do not require splitting or compositing. True
Residual Chlorine Checked. N/A
Eurofins TestAmerica, Irvine Page 15 of 15 8/12/2019
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7.d
Packet Pg. 1452 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
APPENDIX D
SAMPLE LOCATION DIAGRAM
7.d
Packet Pg. 1453 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 1 Sample Location Drawing Prepared for: CNS Engineers, Inc.
Project: Pre Demolition Hazardous Materials
Survey
Scale: Not to Scale
Terracon Project Number: CB175228
LEGEND
Barton Road Bridge
Barton Road and Grand Terrace Road
Exhibit
Asbestos Samples
Lead and Chromium
Samples
Survey Area
20-25
17-19
16 15 14
05 06
04 01 - 03
07-09
13 11 12 10 09
06 07
05 03
04 02
01 7.d
Packet Pg. 1454 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge
APPENDIX E
CERTIFICATIONS AND LICENSES
7.d
Packet Pg. 1455 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
7.d
Packet Pg. 1456 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
7.d
Packet Pg. 1457 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
INITIAL STUDY/MITIGATED NEGATIVE DECLARATION
BARTON ROAD BRIDGE REMOVAL AND ROAD CONSTRUCTION PROJECT
THIS PAGE INTENTIONALLY LEFT BLANK
7.d
Packet Pg. 1458 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
INITIAL STUDY/MITIGATED NEGATIVE DECLARATION
BARTON ROAD BRIDGE REMOVAL AND ROAD CONSTRUCTION PROJECT
APPENDIX E
DRAINAGE STUDY
7.d
Packet Pg. 1459 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
DRAINAGE STUDY
FOR BARTON ROAD
IMPROVEMENTS
CITY OF COLTON
CALIFORNIA
PREPARED FOR:
CNS ENGINEERS, INC.
11870 PIERCE STREET, SUITE 265
RIVERSIDE, CA 92505
(951) 687-1005
PREPARED BY:
41660 IVY STREET, SUITE A
MURRIETA, CA 92562
PH. 951.304.9552
FAX 951.304.3568
JANUARY 15, 2020
REVISED MARCH 2, 2020
7.d
Packet Pg. 1460 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
DRAINAGE STUDY FOR
BARTON ROAD IMPROVEMENTS
CITY OF COLTON, CA
O:\285.01.19\Engineering\Hydrology_Plan\Reports\Report\Hydro_Report.doc i This report has been prepared by or under the direction of the following registered civil engineer who attests to the technical information contained herein. The registered civil engineer has also judged the qualifications of any technical specialists providing engineering data upon which recommendations, conclusions, and decisions are based.
03/02/2020
Joseph L. Castaneda RCE 59835 Date Seal
Registered Civil Engineer
7.d
Packet Pg. 1461 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
DRAINAGE STUDY FOR
BARTON ROAD IMPROVEMENTS
CITY OF COLTON, CA
O:\285.01.19\Engineering\Hydrology_Plan\Reports\Report\Hydro_Report.doc ii
TABLE OF CONTENTS
I. PURPOSE AND SCOPE ....................................................................................................................1 II. PROJECT SITE AND DRAINAGE AREA OVERVIEW ..........................................................................1 III. HYDROLOGY .................................................................................................................................2 IV. STORM DRAIN SYSTEMS ...............................................................................................................4 V. FINDINGS ......................................................................................................................................6 VI. REFERENCES .................................................................................................................................6
FIGURES
FIGURE 1: VICINITY MAP
FIGURE 2: BARTON ROAD STREET SECTIONS
APPENDICES
APPENDIX A: PRE-PROJECT HYDROLOGY
APPENDIX A.1: 100 & 10-YEAR STORM EVENT – AREA “A”
APPENDIX A.2: 100 & 10-YEAR STORM EVENT – AREA “B”
APPENDIX A.3: 100 & 10-YEAR STORM EVENT – AREA “C”
APPENDIX A.4: 100 & 10-YEAR STORM EVENT – AREA “D”
APPENDIX B: POST-PROJECT HYDROLOGY
APPENDIX B.1: 100 & 10-YEAR STORM EVENT – AREA “A”
APPENDIX B.2: 100 & 10-YEAR STORM EVENT – AREA “B”
APPENDIX B.3: 100 & 10-YEAR STORM EVENT – AREA “C”
APPENDIX B.4: 100 & 10-YEAR STORM EVENT – AREA “D”
APPENDIX C: STORM DRAIN HYDRAULIC ANALYSES
APPENDIX C.1: BARTON ROAD 30-INCH CULVERT
APPENDIX C.2: BARTON ROAD STORM DRAIN LINE 1
APPENDIX C.3: BARTON ROAD STORM DRAIN LINE 2
EXHIBITS
EXHIBIT A: PRE-PROJECT HYDROLOGY MAP
EXHIBIT B: POST-PROJECT HYDROLOGY MAP
EXHIBIT C: DRAINAGE FACILITIES MAP
EXCERPTS
EXCERPT 1: BARTON ROAD CONCEPTUAL DESIGN
EXCERPT 2: NOAA ATLAS 14 RAINFALL VALUES
EXCERPT 3: NCRS SOILS DATA
EXCERPT 4: CALTRANS I-215/BARTON ROAD INTERCHANGE HYDROLOGY MAP
7.d
Packet Pg. 1462 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
DRAINAGE STUDY FOR
BARTON ROAD IMPROVEMENTS
CITY OF COLTON, CA
O:\285.01.19\Engineering\Hydrology_Plan\Reports\Report\Hydro_Report.doc 1 I. PURPOSE AND SCOPE
The Barton Road improvements are proposed roadway improvements that will be performed as part of the removal of the existing bridge that crosses the existing railroad corridor. The project is located in the City of Colton and City of Grand Terrace, see Figure 1 Vicinity Map. The purpose of this study is to determine the pre-project and post-project hydrology runoff rates and the necessary drainage improvements required for the Barton Road Improvement Plans.
The scope of the study includes the following:
1. Determination of points of flow concentration and watershed subareas for the project areas.
2. Determination of 10-year and 100-year storm event flow rates within the project watershed area. The project area will utilize the Rational Method as outlined in the San Bernardino County Hydrology Manual.
3. Determine the limits of storm drain required to flood protect the project site, and meet the City of Colton and City of Grand Terrace street design criteria.
4. Preparation of a drainage report, which consist of hydrological and analytical results and exhibits.
II. PROJECT SITE AND DRAINAGE AREA OVERVIEW
The Barton Road Improvements is a project that consist of removing an existing bridge and preparing roadway improvements that will construct a roadway section within the existing Barton Road right-of-way as shown on Excerpt 1. The proposed sections for the Barton Road Improvements have been included in Figure 2. The project will be constructed from the existing limits of the I-215/Barton Road interchange to the east to South Terrace Avenue to the west, which totals approximately 1,000 linear feet of roadway.
The overall drainage area drains in the westerly direction; however, the railroad corridor drains in the northern direction towards the Santa Ana River. The I-215/Barton Road interchange construct inlets at the easterly limits of the project boundary and has included several new storm drain inlets and subsurface pipe to collect the runoff from the interchange area. The design concept will implement a design concept that perpetuate the existing drainage patterns in order not to impact existing downstream properties.
III. HYDROLOGY
The San Bernardino County Hydrology Manual (Reference 1), was used to develop the hydrological parameters for the hydrology analyses. The rational method was used for the analyses and the computations were performed using the CivilDesign Hydrology software.
The hydrology parameters for the project were obtained from the following sources:
7.d
Packet Pg. 1463 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
DRAINAGE STUDY FOR
BARTON ROAD IMPROVEMENTS
CITY OF COLTON, CA
O:\285.01.19\Engineering\Hydrology_Plan\Reports\Report\Hydro_Report.doc 2 • 100 Year and 10 Year Rainfall Data was obtained from NOAA Atlas 14. • Soil Classification were based on NRCS Soil Map
• Land Cover and impervious area were obtained from San Bernardino County Hydrology Manual
The hydrology analyses performed for the project site was developed in the following manner:
1. A watershed area was identified for the project for the pre-project condition using topographic features and improvement plans obtained from Caltrans that is associated with the I-215/Barton Road Interchange Project. The watershed was divided into 4 drainage areas and the flow rates were identified to establish a baseline condition. The hydrology map for the pre-project condition has been included as Exhibit A.
2. A watershed area was identified for the project for the post-project condition using design concept shown in Excerpt 1 that was developed by CNS. The watershed was divided into 4 drainage areas and the flow rates were identified to compare the flow rates to the baseline condition. The hydrology map for the post-project condition has been included as Exhibit B.
The hydrology analyses resulted in the following flow rates for the 4 drainage areas for the pre-project condition:
Table 1 – “Pre Project Condition” Peak Flow Rate for Drainage Areas Subarea Drainage
Area
(acres)
100-Year Flow Rate
(ft3/s)
10-Year Flow Rate
(ft3/s)
A 0.44 1.42 2.5
B 6.11 9.7 5.9
C 0.4 1.3 0.9
D 0.4 1.2 0.8
The hydrology analyses resulted in the following flow rates for the 4 drainage areas for the post-project condition:
Table 2 – “Post Project Condition” Peak Flow Rate for Drainage Areas Subarea Drainage
Area
(acres)
100-Year Flow Rate
(ft3/s)
10-Year Flow Rate
(ft3/s)
A 0.15 0.41 0.26
B 6.56 12.2 7.5
C 0.4 1.2 0.8
D 0.4 1.2 0.8
The hydrology results for the Barton Road Improvements indicate that Area A flow rates decreased in the post-project condition and the flow rates increased in the post project condition for Area B. The changes in the flow rate can be attributed to the altering of drainage areas that
7.d
Packet Pg. 1464 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
DRAINAGE STUDY FOR
BARTON ROAD IMPROVEMENTS
CITY OF COLTON, CA
O:\285.01.19\Engineering\Hydrology_Plan\Reports\Report\Hydro_Report.doc 3 result from the removal of the existing bridge and the high point that exists over the railroad corridor that is depicted in Excerpt 1. Moreover, based on the overall drainage patterns, Area A and Area B both drain into the railroad corridor. Area A drains into the railroad corridor via the existing 39-inch storm drain shown on Exhibit C “Drainage Facilities Map. Area B runoff flows along the railroad corridor as a surface flow condition. In order to do a comparative analysis the sum of the flow rates for Area A and Area B should be compared to assess changes in the magnitude of the flow rate. The pre-project flow rate for area A and B equals 11.1 ft3/s and is tributary to the railroad corridor for the 100 year storm event. The post-project flow rate for area A and B equals 12.6 ft3/s and is tributary to the railroad corridor for the 100 year storm event. The change of flow rate is insignificant and will not adversely impact the downstream property owners. Area C and Area D remain unchanged.
The hydrology calculations have been included in Appendix A and Appendix B for the preproject and post-project conditions, respectively.
IV. STORM DRAIN SYSTEMS
The Drainage Facilities Map, Exhibit A, provides the existing storm drain and proposed storm drain systems required to service the project. The project will be required to construct the following storm drain systems:
1. Construction of a 30-inch culvert that will be located under the proposed fill area that will replace the existing bridge structure. The 30-inch culvert will allow flows to be perpetuated from the south side to the north side in order to mimic the existing drainage pattern.
2. Construction of two inlet structures that will be located west of the existing bridge structure. The two inlets will intercept the street surface flow and convey the runoff to a proposed water quality BMP. After the low flows area treated, the runoff will be conveyed to the proposed 30-inch storm drain.
3. Construction of an 18-inch storm drain that will convey the runoff from the two existing inlets constructed by Caltrans into the proposed 30-inch culvert. The existing design connects to an existing circular inlet structure that connects to an existing 8-inch outlet pipe. This design is substandard and must be repaired to provide adequate flood protection for Barton Road.
The proposed inlets and storm drain identified have been sized sufficiently to intercept the project runoff. It should be noted, that the system may change once more detailed design data and topographical mapping is obtained.
7.d
Packet Pg. 1465 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
DRAINAGE STUDY FOR
BARTON ROAD IMPROVEMENTS
CITY OF COLTON, CA
O:\285.01.19\Engineering\Hydrology_Plan\Reports\Report\Hydro_Report.doc 4 V. FINDINGS
The hydrology analyses evaluated the proposed runoff conditions for the pre-project and postproject conditions. It has been concluded that:
1. The proposed drainage facilities shown in Exhibit C will adequately convey the 100-year flows and provide flood protection to the project site.
2. The project will not adversely impact downstream properties since the flow rates are similar between the pre-project and post-project condition. The negligible change in the flow rate will not result in change in that will induce erosion or increase flooding.
VI. REFERENCES
1. San Bernardino County Hydrology Manual
2. Caltrans Preliminary Drainage Report for Interstate 215/Barton Road, June 9, 2011
3. Caltrans Improvement Plans for Interstate 215/Barton Road, May 22, 2017
7.d
Packet Pg. 1466 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
FIGURES
7.d
Packet Pg. 1467 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction FIGURE 1: VICINITY
MAP
7.d
Packet Pg. 1468 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 41660 IVY STREET, SUITE A
MURRIETA, CA 92562
PH. 951.304.9552 FAX 951.304.3568
Engineering & Consulting, Inc.
7.d
Packet Pg. 1469 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction FIGURE 2: BARTON
ROAD STREET SECTIONS
7.d
Packet Pg. 1470 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
7.d
Packet Pg. 1471 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
APPENDICES
7.d
Packet Pg. 1472 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction APPENDIX A: PRE-PROJECT
HYDROLOGY
7.d
Packet Pg. 1473 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction APPENDIX A.1: 100
& 10-YEAR STORM EVENT –AREA “A”
7.d
Packet Pg. 1474 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 1 San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 03/02/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
100 YEAR HYDROLOGY ANALYSIS
FILENAME: ARAPR100
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 100.0
Computed rainfall intensity:
Storm year = 100.00 1 hour rainfall = 1.080 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 101.000 to Point/Station 102.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 443.000(Ft.)
Top (of initial area) elevation = 979.000(Ft.)
Bottom (of initial area) elevation = 971.000(Ft.)
Difference in elevation = 8.000(Ft.)
Slope = 0.01806 s(%)= 1.81
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 7.764 min.
Rainfall intensity = 3.683(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.876 Subarea runoff = 1.420(CFS)
Total initial stream area = 0.440(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
End of computations, Total Study Area = 0.44 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.100
Area averaged SCS curve number = 32.0
7.d
Packet Pg. 1475 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 1 San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 03/02/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
100 YEAR HYDROLOGY ANALYSIS
FILENAME: ARAPR100
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 100.0
Computed rainfall intensity:
Storm year = 100.00 1 hour rainfall = 1.080 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 101.000 to Point/Station 102.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 443.000(Ft.)
Top (of initial area) elevation = 979.000(Ft.)
Bottom (of initial area) elevation = 971.000(Ft.)
Difference in elevation = 8.000(Ft.)
Slope = 0.01806 s(%)= 1.81
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 7.764 min.
Rainfall intensity = 3.683(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.876 Subarea runoff = 1.420(CFS)
Total initial stream area = 0.440(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
End of computations, Total Study Area = 0.44 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.100
Area averaged SCS curve number = 32.0
7.d
Packet Pg. 1476 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction APPENDIX A.2: 100
& 10-YEAR STORM EVENT –AREA “B”
7.d
Packet Pg. 1477 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 1 San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 03/02/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
100 YEAR HYDROLOGY ANALYSIS
FILENAME: ARBEX100
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 100.0
Computed rainfall intensity:
Storm year = 100.00 1 hour rainfall = 1.080 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 200.000 to Point/Station 201.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 0.550
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.450
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 48.65
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.083(In/Hr) Initial subarea data:
Initial area flow distance = 565.000(Ft.)
Top (of initial area) elevation = 981.000(Ft.)
Bottom (of initial area) elevation = 971.000(Ft.)
Difference in elevation = 10.000(Ft.)
Slope = 0.01770 s(%)= 1.77
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 8.592 min.
Rainfall intensity = 3.466(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.879 Subarea runoff = 2.710(CFS)
Total initial stream area = 0.890(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.083(In/Hr)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 201.000 to Point/Station 202.000 **** IMPROVED CHANNEL TRAVEL TIME ****
______________________________________________________________________ Upstream point elevation = 971.000(Ft.)
Downstream point elevation = 955.000(Ft.)
7.d
Packet Pg. 1478 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 2 Channel length thru subarea = 689.000(Ft.)
Channel base width = 0.000(Ft.)
Slope or 'Z' of left channel bank = 20.000
Slope or 'Z' of right channel bank = 20.000
Estimated mean flow rate at midpoint of channel = 6.108(CFS) Manning's 'N' = 0.015
Maximum depth of channel = 1.000(Ft.)
Flow(q) thru subarea = 6.108(CFS)
Depth of flow = 0.276(Ft.), Average velocity = 4.023(Ft/s) Channel flow top width = 11.020(Ft.)
Flow Velocity = 4.02(Ft/s)
Travel time = 2.85 min.
Time of concentration = 11.45 min.
Critical depth = 0.357(Ft.)
Adding area flow to channel
COMMERCIAL subarea type
Decimal fraction soil group A = 0.840
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.160
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 37.92
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.094(In/Hr) Rainfall intensity = 2.918(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.872
Subarea runoff = 6.730(CFS) for 2.820(Ac.)
Total runoff = 9.440(CFS)
Effective area this stream = 3.71(Ac.)
Total Study Area (Main Stream No. 1) = 3.71(Ac.)
Area averaged Fm value = 0.091(In/Hr)
Depth of flow = 0.324(Ft.), Average velocity = 4.486(Ft/s) Critical depth = 0.426(Ft.)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 202.000 to Point/Station 203.000 **** IMPROVED CHANNEL TRAVEL TIME ****
______________________________________________________________________ Upstream point elevation = 955.000(Ft.)
Downstream point elevation = 953.000(Ft.)
Channel length thru subarea = 401.000(Ft.)
Channel base width = 5.000(Ft.)
Slope or 'Z' of left channel bank = 4.000
Slope or 'Z' of right channel bank = 4.000
Estimated mean flow rate at midpoint of channel = 9.474(CFS) Manning's 'N' = 0.035
Maximum depth of channel = 1.000(Ft.)
Flow(q) thru subarea = 9.474(CFS)
Depth of flow = 0.666(Ft.), Average velocity = 1.855(Ft/s) Channel flow top width = 10.330(Ft.)
Flow Velocity = 1.86(Ft/s)
Travel time = 3.60 min.
Time of concentration = 15.05 min.
Critical depth = 0.426(Ft.)
Adding area flow to channel
UNDEVELOPED (poor cover) subarea
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 67.00
7.d
Packet Pg. 1479 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 3 Pervious ratio(Ap) = 1.0000 Max loss rate(Fm)= 0.578(In/Hr) The area added to the existing stream causes a
a lower flow rate of Q = 9.417(CFS)
therefore the upstream flow rate of Q = 9.440(CFS) is being used Rainfall intensity = 2.476(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.834
Subarea runoff = 0.000(CFS) for 0.850(Ac.)
Total runoff = 9.440(CFS)
Effective area this stream = 4.56(Ac.)
Total Study Area (Main Stream No. 1) = 4.56(Ac.)
Area averaged Fm value = 0.182(In/Hr)
Depth of flow = 0.665(Ft.), Average velocity = 1.853(Ft/s) Critical depth = 0.426(Ft.)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.000 to Point/Station 204.000 **** IMPROVED CHANNEL TRAVEL TIME ****
______________________________________________________________________ Upstream point elevation = 953.000(Ft.)
Downstream point elevation = 952.000(Ft.)
Channel length thru subarea = 461.000(Ft.)
Channel base width = 5.000(Ft.)
Slope or 'Z' of left channel bank = 4.000
Slope or 'Z' of right channel bank = 4.000
Estimated mean flow rate at midpoint of channel = 9.609(CFS) Manning's 'N' = 0.035
Maximum depth of channel = 1.000(Ft.)
Flow(q) thru subarea = 9.609(CFS)
Depth of flow = 0.834(Ft.), Average velocity = 1.383(Ft/s) Channel flow top width = 11.668(Ft.)
Flow Velocity = 1.38(Ft/s)
Travel time = 5.55 min.
Time of concentration = 20.60 min.
Critical depth = 0.430(Ft.)
Adding area flow to channel
UNDEVELOPED (poor cover) subarea
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 67.00
Pervious ratio(Ap) = 1.0000 Max loss rate(Fm)= 0.578(In/Hr) Rainfall intensity = 2.051(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.776
Subarea runoff = 0.285(CFS) for 1.550(Ac.)
Total runoff = 9.725(CFS)
Effective area this stream = 6.11(Ac.)
Total Study Area (Main Stream No. 1) = 6.11(Ac.)
Area averaged Fm value = 0.282(In/Hr)
Depth of flow = 0.839(Ft.), Average velocity = 1.388(Ft/s) Critical depth = 0.434(Ft.)
End of computations, Total Study Area = 6.11 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.454
7.d
Packet Pg. 1480 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 4 Area averaged SCS curve number = 50.9
7.d
Packet Pg. 1481 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 1 San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 03/02/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
10 YEAR HYDROLOGY ANALYSIS
FILENAME: ARBEX10
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 10.0
Computed rainfall intensity:
Storm year = 10.00 1 hour rainfall = 0.698 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 200.000 to Point/Station 201.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 0.550
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.450
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 48.65
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.083(In/Hr) Initial subarea data:
Initial area flow distance = 565.000(Ft.)
Top (of initial area) elevation = 981.000(Ft.)
Bottom (of initial area) elevation = 971.000(Ft.)
Difference in elevation = 10.000(Ft.)
Slope = 0.01770 s(%)= 1.77
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 8.592 min.
Rainfall intensity = 2.240(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.867 Subarea runoff = 1.728(CFS)
Total initial stream area = 0.890(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.083(In/Hr)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 201.000 to Point/Station 202.000 **** IMPROVED CHANNEL TRAVEL TIME ****
______________________________________________________________________ Upstream point elevation = 971.000(Ft.)
Downstream point elevation = 955.000(Ft.)
7.d
Packet Pg. 1482 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 2 Channel length thru subarea = 689.000(Ft.)
Channel base width = 0.000(Ft.)
Slope or 'Z' of left channel bank = 20.000
Slope or 'Z' of right channel bank = 20.000
Estimated mean flow rate at midpoint of channel = 3.850(CFS) Manning's 'N' = 0.015
Maximum depth of channel = 1.000(Ft.)
Flow(q) thru subarea = 3.850(CFS)
Depth of flow = 0.232(Ft.), Average velocity = 3.585(Ft/s) Channel flow top width = 9.269(Ft.)
Flow Velocity = 3.58(Ft/s)
Travel time = 3.20 min.
Time of concentration = 11.80 min.
Critical depth = 0.297(Ft.)
Adding area flow to channel
COMMERCIAL subarea type
Decimal fraction soil group A = 0.840
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.160
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 37.92
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.094(In/Hr) Rainfall intensity = 1.852(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.856
Subarea runoff = 4.153(CFS) for 2.820(Ac.)
Total runoff = 5.881(CFS)
Effective area this stream = 3.71(Ac.)
Total Study Area (Main Stream No. 1) = 3.71(Ac.)
Area averaged Fm value = 0.091(In/Hr)
Depth of flow = 0.272(Ft.), Average velocity = 3.986(Ft/s) Critical depth = 0.352(Ft.)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 202.000 to Point/Station 203.000 **** IMPROVED CHANNEL TRAVEL TIME ****
______________________________________________________________________ Upstream point elevation = 955.000(Ft.)
Downstream point elevation = 953.000(Ft.)
Channel length thru subarea = 401.000(Ft.)
Channel base width = 5.000(Ft.)
Slope or 'Z' of left channel bank = 4.000
Slope or 'Z' of right channel bank = 4.000
Estimated mean flow rate at midpoint of channel = 5.924(CFS) Manning's 'N' = 0.035
Maximum depth of channel = 1.000(Ft.)
Flow(q) thru subarea = 5.924(CFS)
Depth of flow = 0.518(Ft.), Average velocity = 1.615(Ft/s) Channel flow top width = 9.147(Ft.)
Flow Velocity = 1.62(Ft/s)
Travel time = 4.14 min.
Time of concentration = 15.93 min.
Critical depth = 0.320(Ft.)
Adding area flow to channel
UNDEVELOPED (poor cover) subarea
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 67.00
7.d
Packet Pg. 1483 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 3 Pervious ratio(Ap) = 1.0000 Max loss rate(Fm)= 0.578(In/Hr) The area added to the existing stream causes a
a lower flow rate of Q = 5.601(CFS)
therefore the upstream flow rate of Q = 5.881(CFS) is being used Rainfall intensity = 1.547(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.794
Subarea runoff = 0.000(CFS) for 0.850(Ac.)
Total runoff = 5.881(CFS)
Effective area this stream = 4.56(Ac.)
Total Study Area (Main Stream No. 1) = 4.56(Ac.)
Area averaged Fm value = 0.182(In/Hr)
Depth of flow = 0.516(Ft.), Average velocity = 1.612(Ft/s) Critical depth = 0.320(Ft.)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.000 to Point/Station 204.000 **** IMPROVED CHANNEL TRAVEL TIME ****
______________________________________________________________________ Upstream point elevation = 953.000(Ft.)
Downstream point elevation = 952.000(Ft.)
Channel length thru subarea = 461.000(Ft.)
Channel base width = 5.000(Ft.)
Slope or 'Z' of left channel bank = 4.000
Slope or 'Z' of right channel bank = 4.000
Estimated mean flow rate at midpoint of channel = 5.913(CFS) Manning's 'N' = 0.035
Maximum depth of channel = 1.000(Ft.)
Flow(q) thru subarea = 5.913(CFS)
Depth of flow = 0.647(Ft.), Average velocity = 1.204(Ft/s) Channel flow top width = 10.177(Ft.)
Flow Velocity = 1.20(Ft/s)
Travel time = 6.38 min.
Time of concentration = 22.31 min.
Critical depth = 0.320(Ft.)
Adding area flow to channel
UNDEVELOPED (poor cover) subarea
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 67.00
Pervious ratio(Ap) = 1.0000 Max loss rate(Fm)= 0.578(In/Hr) The area added to the existing stream causes a
a lower flow rate of Q = 5.396(CFS)
therefore the upstream flow rate of Q = 5.881(CFS) is being used Rainfall intensity = 1.264(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.699
Subarea runoff = 0.000(CFS) for 1.550(Ac.)
Total runoff = 5.881(CFS)
Effective area this stream = 6.11(Ac.)
Total Study Area (Main Stream No. 1) = 6.11(Ac.)
Area averaged Fm value = 0.282(In/Hr)
Depth of flow = 0.645(Ft.), Average velocity = 1.202(Ft/s) Critical depth = 0.320(Ft.)
End of computations, Total Study Area = 6.11 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area
7.d
Packet Pg. 1484 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 4 effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.454
Area averaged SCS curve number = 50.9
7.d
Packet Pg. 1485 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction APPENDIX A.3: 100
& 10-YEAR STORM EVENT –AREA “C”
7.d
Packet Pg. 1486 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 01/14/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
100 YEAR HYDROLOGY ANALYSIS
FILENAME: ARCEX100
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 100.0
Computed rainfall intensity:
Storm year = 100.00 1 hour rainfall = 1.080 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 301.000 to Point/Station 302.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 630.000(Ft.)
Top (of initial area) elevation = 979.000(Ft.)
Bottom (of initial area) elevation = 953.000(Ft.)
Difference in elevation = 26.000(Ft.)
Slope = 0.04127 s(%)= 4.13
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 7.577 min.
Rainfall intensity = 3.738(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.876 Subarea runoff = 1.343(CFS)
Total initial stream area = 0.410(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
End of computations, Total Study Area = 0.41 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.100
Area averaged SCS curve number = 32.0
7.d
Packet Pg. 1487 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 01/14/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
10 YEAR HYDROLOGY ANALYSIS
FILENAME: ARCEX10
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 10.0
Computed rainfall intensity:
Storm year = 10.00 1 hour rainfall = 0.698 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 301.000 to Point/Station 302.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 630.000(Ft.)
Top (of initial area) elevation = 979.000(Ft.)
Bottom (of initial area) elevation = 953.000(Ft.)
Difference in elevation = 26.000(Ft.)
Slope = 0.04127 s(%)= 4.13
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 7.577 min.
Rainfall intensity = 2.416(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.864 Subarea runoff = 0.855(CFS)
Total initial stream area = 0.410(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
End of computations, Total Study Area = 0.41 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.100
Area averaged SCS curve number = 32.0
7.d
Packet Pg. 1488 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
7.d
Packet Pg. 1489 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction APPENDIX A.4: 100
& 10-YEAR STORM EVENT –AREA “D”
7.d
Packet Pg. 1490 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 01/14/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
100 YEAR HYDROLOGY ANALYSIS
FILENAME: ARDEX100
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 100.0
Computed rainfall intensity:
Storm year = 100.00 1 hour rainfall = 1.080 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 401.000 to Point/Station 402.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 646.000(Ft.)
Top (of initial area) elevation = 979.000(Ft.)
Bottom (of initial area) elevation = 953.000(Ft.)
Difference in elevation = 26.000(Ft.)
Slope = 0.04025 s(%)= 4.02
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 7.692 min.
Rainfall intensity = 3.704(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.876 Subarea runoff = 1.169(CFS)
Total initial stream area = 0.360(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
End of computations, Total Study Area = 0.36 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.100
Area averaged SCS curve number = 32.0
7.d
Packet Pg. 1491 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 01/14/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
10 YEAR HYDROLOGY ANALYSIS
FILENAME: ARDEX10
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 10.0
Computed rainfall intensity:
Storm year = 10.00 1 hour rainfall = 0.698 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 401.000 to Point/Station 402.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 646.000(Ft.)
Top (of initial area) elevation = 979.000(Ft.)
Bottom (of initial area) elevation = 953.000(Ft.)
Difference in elevation = 26.000(Ft.)
Slope = 0.04025 s(%)= 4.02
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 7.692 min.
Rainfall intensity = 2.394(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.863 Subarea runoff = 0.744(CFS)
Total initial stream area = 0.360(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
End of computations, Total Study Area = 0.36 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.100
Area averaged SCS curve number = 32.0
7.d
Packet Pg. 1492 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
7.d
Packet Pg. 1493 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction APPENDIX B: POST-PROJECT
HYDROLOGY
7.d
Packet Pg. 1494 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction APPENDIX B.1: 100
& 10-YEAR STORM EVENT –AREA “A”
7.d
Packet Pg. 1495 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 1 San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 03/03/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
100 YEAR HYDROLOGY ANALYSIS
FILENAME: ARAPR100
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 100.0
Computed rainfall intensity:
Storm year = 100.00 1 hour rainfall = 1.080 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 101.000 to Point/Station 102.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 429.000(Ft.)
Top (of initial area) elevation = 973.000(Ft.)
Bottom (of initial area) elevation = 971.000(Ft.)
Difference in elevation = 2.000(Ft.)
Slope = 0.00466 s(%)= 0.47
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 10.049 min.
Rainfall intensity = 3.155(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.872 Subarea runoff = 0.413(CFS)
Total initial stream area = 0.150(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
End of computations, Total Study Area = 0.15 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
7.d
Packet Pg. 1496 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 2 Area averaged pervious area fraction(Ap) = 0.100
Area averaged SCS curve number = 32.0
7.d
Packet Pg. 1497 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 1 San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 03/03/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
10 YEAR HYDROLOGY ANALYSIS
FILENAME: ARAPR10
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 10.0
Computed rainfall intensity:
Storm year = 10.00 1 hour rainfall = 0.698 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 101.000 to Point/Station 102.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 429.000(Ft.)
Top (of initial area) elevation = 973.000(Ft.)
Bottom (of initial area) elevation = 971.000(Ft.)
Difference in elevation = 2.000(Ft.)
Slope = 0.00466 s(%)= 0.47
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 10.049 min.
Rainfall intensity = 2.039(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.857 Subarea runoff = 0.262(CFS)
Total initial stream area = 0.150(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
End of computations, Total Study Area = 0.15 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.100
Area averaged SCS curve number = 32.
7.d
Packet Pg. 1498 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction APPENDIX B.2: 100
& 10-YEAR STORM EVENT –AREA “B”
7.d
Packet Pg. 1499 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 1 San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 03/02/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
100 YEAR HYDROLOGY ANALYSIS
FILENAME: ARBPR100
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 100.0
Computed rainfall intensity:
Storm year = 100.00 1 hour rainfall = 1.080 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 201.000 to Point/Station 202.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 0.840
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.160
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 37.92
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.094(In/Hr) Initial subarea data:
Initial area flow distance = 689.000(Ft.)
Top (of initial area) elevation = 971.000(Ft.)
Bottom (of initial area) elevation = 955.000(Ft.)
Difference in elevation = 16.000(Ft.)
Slope = 0.02322 s(%)= 2.32
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 8.810 min.
Rainfall intensity = 3.414(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.875 Subarea runoff = 8.429(CFS)
Total initial stream area = 2.820(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.094(In/Hr)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 202.000 to Point/Station 203.000 **** IMPROVED CHANNEL TRAVEL TIME ****
______________________________________________________________________ Upstream point elevation = 955.000(Ft.)
Downstream point elevation = 953.000(Ft.)
7.d
Packet Pg. 1500 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 2 Channel length thru subarea = 342.000(Ft.)
Channel base width = 5.000(Ft.)
Slope or 'Z' of left channel bank = 4.000
Slope or 'Z' of right channel bank = 4.000
Estimated mean flow rate at midpoint of channel = 8.603(CFS) Manning's 'N' = 0.035
Maximum depth of channel = 1.000(Ft.)
Flow(q) thru subarea = 8.603(CFS)
Depth of flow = 0.607(Ft.), Average velocity = 1.908(Ft/s) Channel flow top width = 9.856(Ft.)
Flow Velocity = 1.91(Ft/s)
Travel time = 2.99 min.
Time of concentration = 11.80 min.
Critical depth = 0.402(Ft.)
Adding area flow to channel
UNDEVELOPED (poor cover) subarea
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 67.00
Pervious ratio(Ap) = 1.0000 Max loss rate(Fm)= 0.578(In/Hr) Rainfall intensity = 2.866(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.837
Subarea runoff = 0.275(CFS) for 0.810(Ac.)
Total runoff = 8.704(CFS)
Effective area this stream = 3.63(Ac.)
Total Study Area (Main Stream No. 1) = 3.63(Ac.)
Area averaged Fm value = 0.202(In/Hr)
Depth of flow = 0.611(Ft.), Average velocity = 1.915(Ft/s) Critical depth = 0.406(Ft.)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.000 to Point/Station 203.300 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 953.000(Ft.)
Downstream point/station elevation = 952.800(Ft.)
Pipe length = 155.00(Ft.) Manning's N = 0.013
No. of pipes = 1 Required pipe flow = 8.704(CFS)
Nearest computed pipe diameter = 27.00(In.)
Calculated individual pipe flow = 8.704(CFS)
Normal flow depth in pipe = 17.98(In.)
Flow top width inside pipe = 25.47(In.)
Critical Depth = 12.17(In.)
Pipe flow velocity = 3.10(Ft/s)
Travel time through pipe = 0.83 min.
Time of concentration (TC) = 12.63 min.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.000 to Point/Station 203.300 **** CONFLUENCE OF MAIN STREAMS ****
______________________________________________________________________ The following data inside Main Stream is listed:
In Main Stream number: 1
Stream flow area = 3.630(Ac.)
Runoff from this stream = 8.704(CFS)
Time of concentration = 12.63 min.
7.d
Packet Pg. 1501 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 3 Rainfall intensity = 2.751(In/Hr)
Area averaged loss rate (Fm) = 0.2017(In/Hr)
Area averaged Pervious ratio (Ap) = 0.3008
Program is now starting with Main Stream No. 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.100 to Point/Station 203.110 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 565.000(Ft.)
Top (of initial area) elevation = 981.000(Ft.)
Bottom (of initial area) elevation = 971.000(Ft.)
Difference in elevation = 10.000(Ft.)
Slope = 0.01770 s(%)= 1.77
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 8.592 min.
Rainfall intensity = 3.466(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.875 Subarea runoff = 1.940(CFS)
Total initial stream area = 0.640(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.110 to Point/Station 203.120 **** STREET FLOW TRAVEL TIME + SUBAREA FLOW ADDITION **** ______________________________________________________________________ Top of street segment elevation = 971.000(Ft.)
End of street segment elevation = 963.000(Ft.)
Length of street segment = 517.000(Ft.)
Height of curb above gutter flowline = 8.0(In.)
Width of half street (curb to crown) = 20.000(Ft.)
Distance from crown to crossfall grade break = 18.000(Ft.) Slope from gutter to grade break (v/hz) = 0.020
Slope from grade break to crown (v/hz) = 0.020
Street flow is on [1] side(s) of the street
Distance from curb to property line = 10.000(Ft.)
Slope from curb to property line (v/hz) = 0.020
Gutter width = 2.000(Ft.)
Gutter hike from flowline = 2.000(In.)
Manning's N in gutter = 0.0150
Manning's N from gutter to grade break = 0.0150
Manning's N from grade break to crown = 0.0150
Estimated mean flow rate at midpoint of street = 2.258(CFS) Depth of flow = 0.299(Ft.), Average velocity = 2.606(Ft/s) Streetflow hydraulics at midpoint of street travel:
Halfstreet flow width = 8.601(Ft.)
Flow velocity = 2.61(Ft/s)
Travel time = 3.31 min. TC = 11.90 min.
Adding area flow to street
COMMERCIAL subarea type
7.d
Packet Pg. 1502 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 4 Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Rainfall intensity = 2.851(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.869
Subarea runoff = 0.563(CFS) for 0.370(Ac.)
Total runoff = 2.503(CFS)
Effective area this stream = 1.01(Ac.)
Total Study Area (Main Stream No. 2) = 4.64(Ac.)
Area averaged Fm value = 0.098(In/Hr)
Street flow at end of street = 2.503(CFS)
Half street flow at end of street = 2.503(CFS)
Depth of flow = 0.307(Ft.), Average velocity = 2.666(Ft/s) Flow width (from curb towards crown)= 9.011(Ft.)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.120 to Point/Station 203.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 959.000(Ft.)
Downstream point/station elevation = 958.000(Ft.)
Pipe length = 38.00(Ft.) Manning's N = 0.013
No. of pipes = 1 Required pipe flow = 2.503(CFS)
Nearest computed pipe diameter = 9.00(In.)
Calculated individual pipe flow = 2.503(CFS)
Normal flow depth in pipe = 6.89(In.)
Flow top width inside pipe = 7.62(In.)
Critical Depth = 8.31(In.)
Pipe flow velocity = 6.90(Ft/s)
Travel time through pipe = 0.09 min.
Time of concentration (TC) = 11.99 min.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.100 to Point/Station 203.200 **** CONFLUENCE OF MINOR STREAMS ****
______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1
Stream flow area = 1.010(Ac.)
Runoff from this stream = 2.503(CFS)
Time of concentration = 11.99 min.
Rainfall intensity = 2.838(In/Hr)
Area averaged loss rate (Fm) = 0.0978(In/Hr)
Area averaged Pervious ratio (Ap) = 0.1000
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 102.000 to Point/Station 203.200 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
7.d
Packet Pg. 1503 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 5 Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 512.000(Ft.)
Top (of initial area) elevation = 971.000(Ft.)
Bottom (of initial area) elevation = 963.000(Ft.)
Difference in elevation = 8.000(Ft.)
Slope = 0.01563 s(%)= 1.56
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 8.469 min.
Rainfall intensity = 3.496(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.875 Subarea runoff = 1.376(CFS)
Total initial stream area = 0.450(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 102.000 to Point/Station 203.200 **** CONFLUENCE OF MINOR STREAMS ****
______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2
Stream flow area = 0.450(Ac.)
Runoff from this stream = 1.376(CFS)
Time of concentration = 8.47 min.
Rainfall intensity = 3.496(In/Hr)
Area averaged loss rate (Fm) = 0.0978(In/Hr)
Area averaged Pervious ratio (Ap) = 0.1000
Summary of stream data:
Stream Flow rate Area TC Fm Rainfall Intensity
No. (CFS) (Ac.) (min) (In/Hr) (In/Hr)
1 2.50 1.010 11.99 0.098 2.838
2 1.38 0.450 8.47 0.098 3.496
Qmax(1) =
1.000 * 1.000 * 2.503) +
0.806 * 1.000 * 1.376) + = 3.613
Qmax(2) =
1.240 * 0.706 * 2.503) +
1.000 * 1.000 * 1.376) + = 3.569
Total of 2 streams to confluence:
Flow rates before confluence point:
2.503 1.376
Maximum flow rates at confluence using above data:
3.613 3.569
Area of streams before confluence:
1.010 0.450
Effective area values after confluence:
1.460 1.163
Results of confluence:
Total flow rate = 3.613(CFS)
Time of concentration = 11.990 min.
Effective stream area after confluence = 1.460(Ac.)
Study area average Pervious fraction(Ap) = 0.100
Study area average soil loss rate(Fm) = 0.098(In/Hr)
Study area total (this main stream) = 1.46(Ac.)
7.d
Packet Pg. 1504 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 6 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.200 to Point/Station 203.300 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 958.000(Ft.)
Downstream point/station elevation = 952.800(Ft.)
Pipe length = 85.00(Ft.) Manning's N = 0.013
No. of pipes = 1 Required pipe flow = 3.613(CFS)
Nearest computed pipe diameter = 9.00(In.)
Calculated individual pipe flow = 3.613(CFS)
Normal flow depth in pipe = 6.57(In.)
Flow top width inside pipe = 7.99(In.)
Critical depth could not be calculated.
Pipe flow velocity = 10.46(Ft/s)
Travel time through pipe = 0.14 min.
Time of concentration (TC) = 12.13 min.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.200 to Point/Station 203.300 **** CONFLUENCE OF MAIN STREAMS ****
______________________________________________________________________ The following data inside Main Stream is listed:
In Main Stream number: 2
Stream flow area = 1.460(Ac.)
Runoff from this stream = 3.613(CFS)
Time of concentration = 12.13 min.
Rainfall intensity = 2.819(In/Hr)
Area averaged loss rate (Fm) = 0.0978(In/Hr)
Area averaged Pervious ratio (Ap) = 0.1000
Summary of stream data:
Stream Flow rate Area TC Fm Rainfall Intensity
No. (CFS) (Ac.) (min) (In/Hr) (In/Hr)
1 8.70 3.630 12.63 0.202 2.751
2 3.61 1.460 12.13 0.098 2.819
Qmax(1) =
1.000 * 1.000 * 8.704) +
0.975 * 1.000 * 3.613) + = 12.226
Qmax(2) =
1.027 * 0.960 * 8.704) +
1.000 * 1.000 * 3.613) + = 12.192
Total of 2 main streams to confluence:
Flow rates before confluence point:
9.704 4.613
Maximum flow rates at confluence using above data:
12.226 12.192
Area of streams before confluence:
3.630 1.460
Effective area values after confluence:
5.090 4.945
Results of confluence:
Total flow rate = 12.226(CFS)
Time of concentration = 12.632 min.
Effective stream area after confluence = 5.090(Ac.)
Study area average Pervious fraction(Ap) = 0.243
7.d
Packet Pg. 1505 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 7 Study area average soil loss rate(Fm) = 0.172(In/Hr)
Study area total = 5.09(Ac.)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.300 to Point/Station 204.000 **** IMPROVED CHANNEL TRAVEL TIME ****
______________________________________________________________________ Upstream point elevation = 952.800(Ft.)
Downstream point elevation = 952.000(Ft.)
Channel length thru subarea = 362.000(Ft.)
Channel base width = 5.000(Ft.)
Slope or 'Z' of left channel bank = 4.000
Slope or 'Z' of right channel bank = 4.000
Estimated mean flow rate at midpoint of channel = 12.254(CFS) Manning's 'N' = 0.035
Maximum depth of channel = 1.000(Ft.)
Flow(q) thru subarea = 12.254(CFS)
Depth of flow = 0.939(Ft.), Average velocity = 1.490(Ft/s) Channel flow top width = 12.512(Ft.)
Flow Velocity = 1.49(Ft/s)
Travel time = 4.05 min.
Time of concentration = 16.68 min.
Critical depth = 0.496(Ft.)
Adding area flow to channel
UNDEVELOPED (poor cover) subarea
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 67.00
Pervious ratio(Ap) = 1.0000 Max loss rate(Fm)= 0.578(In/Hr) The area added to the existing stream causes a
a lower flow rate of Q = 12.192(CFS)
therefore the upstream flow rate of Q = 12.226(CFS) is being used Rainfall intensity = 2.328(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.798
Subarea runoff = 0.000(CFS) for 1.470(Ac.)
Total runoff = 12.226(CFS)
Effective area this stream = 6.56(Ac.)
Total Study Area (Main Stream No. 1) = 6.56(Ac.)
Area averaged Fm value = 0.263(In/Hr)
Depth of flow = 0.938(Ft.), Average velocity = 1.489(Ft/s) Critical depth = 0.496(Ft.)
End of computations, Total Study Area = 6.56 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.413
Area averaged SCS curve number = 46.7
7.d
Packet Pg. 1506 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 1 San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 03/02/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
10 YEAR HYDROLOGY ANALYSIS
FILENAME: ARBPR10
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 10.0
Computed rainfall intensity:
Storm year = 10.00 1 hour rainfall = 0.698 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 201.000 to Point/Station 202.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 0.840
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.160
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 37.92
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.094(In/Hr) Initial subarea data:
Initial area flow distance = 689.000(Ft.)
Top (of initial area) elevation = 971.000(Ft.)
Bottom (of initial area) elevation = 955.000(Ft.)
Difference in elevation = 16.000(Ft.)
Slope = 0.02322 s(%)= 2.32
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 8.810 min.
Rainfall intensity = 2.207(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.862 Subarea runoff = 5.363(CFS)
Total initial stream area = 2.820(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.094(In/Hr)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 202.000 to Point/Station 203.000 **** IMPROVED CHANNEL TRAVEL TIME ****
______________________________________________________________________
7.d
Packet Pg. 1507 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 2 Upstream point elevation = 955.000(Ft.)
Downstream point elevation = 953.000(Ft.)
Channel length thru subarea = 342.000(Ft.)
Channel base width = 5.000(Ft.)
Slope or 'Z' of left channel bank = 4.000
Slope or 'Z' of right channel bank = 4.000
Estimated mean flow rate at midpoint of channel = 5.412(CFS) Manning's 'N' = 0.035
Maximum depth of channel = 1.000(Ft.)
Flow(q) thru subarea = 5.412(CFS)
Depth of flow = 0.473(Ft.), Average velocity = 1.661(Ft/s) Channel flow top width = 8.781(Ft.)
Flow Velocity = 1.66(Ft/s)
Travel time = 3.43 min.
Time of concentration = 12.24 min.
Critical depth = 0.305(Ft.)
Adding area flow to channel
UNDEVELOPED (poor cover) subarea
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 67.00
Pervious ratio(Ap) = 1.0000 Max loss rate(Fm)= 0.578(In/Hr) The area added to the existing stream causes a
a lower flow rate of Q = 5.260(CFS)
therefore the upstream flow rate of Q = 5.363(CFS) is being used Rainfall intensity = 1.812(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.800
Subarea runoff = 0.000(CFS) for 0.810(Ac.)
Total runoff = 5.363(CFS)
Effective area this stream = 3.63(Ac.)
Total Study Area (Main Stream No. 1) = 3.63(Ac.)
Area averaged Fm value = 0.202(In/Hr)
Depth of flow = 0.470(Ft.), Average velocity = 1.657(Ft/s) Critical depth = 0.301(Ft.)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.000 to Point/Station 203.300 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 953.000(Ft.)
Downstream point/station elevation = 952.800(Ft.)
Pipe length = 155.00(Ft.) Manning's N = 0.013
No. of pipes = 1 Required pipe flow = 5.363(CFS)
Nearest computed pipe diameter = 21.00(In.)
Calculated individual pipe flow = 5.363(CFS)
Normal flow depth in pipe = 16.22(In.)
Flow top width inside pipe = 17.61(In.)
Critical Depth = 10.22(In.)
Pipe flow velocity = 2.69(Ft/s)
Travel time through pipe = 0.96 min.
Time of concentration (TC) = 13.20 min.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.000 to Point/Station 203.300
7.d
Packet Pg. 1508 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 3 **** CONFLUENCE OF MAIN STREAMS ****
______________________________________________________________________ The following data inside Main Stream is listed:
In Main Stream number: 1
Stream flow area = 3.630(Ac.)
Runoff from this stream = 5.363(CFS)
Time of concentration = 13.20 min.
Rainfall intensity = 1.731(In/Hr)
Area averaged loss rate (Fm) = 0.2017(In/Hr)
Area averaged Pervious ratio (Ap) = 0.3008
Program is now starting with Main Stream No. 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.100 to Point/Station 203.110 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 565.000(Ft.)
Top (of initial area) elevation = 981.000(Ft.)
Bottom (of initial area) elevation = 971.000(Ft.)
Difference in elevation = 10.000(Ft.)
Slope = 0.01770 s(%)= 1.77
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 8.592 min.
Rainfall intensity = 2.240(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.861 Subarea runoff = 1.234(CFS)
Total initial stream area = 0.640(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.110 to Point/Station 203.120 **** STREET FLOW TRAVEL TIME + SUBAREA FLOW ADDITION **** ______________________________________________________________________ Top of street segment elevation = 971.000(Ft.)
End of street segment elevation = 963.000(Ft.)
Length of street segment = 517.000(Ft.)
Height of curb above gutter flowline = 8.0(In.)
Width of half street (curb to crown) = 20.000(Ft.)
Distance from crown to crossfall grade break = 18.000(Ft.) Slope from gutter to grade break (v/hz) = 0.020
Slope from grade break to crown (v/hz) = 0.020
Street flow is on [1] side(s) of the street
Distance from curb to property line = 10.000(Ft.)
Slope from curb to property line (v/hz) = 0.020
Gutter width = 2.000(Ft.)
Gutter hike from flowline = 2.000(In.)
Manning's N in gutter = 0.0150
Manning's N from gutter to grade break = 0.0150
7.d
Packet Pg. 1509 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 4 Manning's N from grade break to crown = 0.0150
Estimated mean flow rate at midpoint of street = 1.446(CFS) Depth of flow = 0.266(Ft.), Average velocity = 2.371(Ft/s) Streetflow hydraulics at midpoint of street travel:
Halfstreet flow width = 6.952(Ft.)
Flow velocity = 2.37(Ft/s)
Travel time = 3.63 min. TC = 12.23 min.
Adding area flow to street
COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Rainfall intensity = 1.813(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.851
Subarea runoff = 0.325(CFS) for 0.370(Ac.)
Total runoff = 1.559(CFS)
Effective area this stream = 1.01(Ac.)
Total Study Area (Main Stream No. 2) = 4.64(Ac.)
Area averaged Fm value = 0.098(In/Hr)
Street flow at end of street = 1.559(CFS)
Half street flow at end of street = 1.559(CFS)
Depth of flow = 0.271(Ft.), Average velocity = 2.408(Ft/s) Flow width (from curb towards crown)= 7.216(Ft.)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.120 to Point/Station 203.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 959.000(Ft.)
Downstream point/station elevation = 958.000(Ft.)
Pipe length = 38.00(Ft.) Manning's N = 0.013
No. of pipes = 1 Required pipe flow = 1.559(CFS)
Nearest computed pipe diameter = 9.00(In.)
Calculated individual pipe flow = 1.559(CFS)
Normal flow depth in pipe = 4.93(In.)
Flow top width inside pipe = 8.96(In.)
Critical Depth = 6.90(In.)
Pipe flow velocity = 6.30(Ft/s)
Travel time through pipe = 0.10 min.
Time of concentration (TC) = 12.33 min.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.100 to Point/Station 203.200 **** CONFLUENCE OF MINOR STREAMS ****
______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1
Stream flow area = 1.010(Ac.)
Runoff from this stream = 1.559(CFS)
Time of concentration = 12.33 min.
Rainfall intensity = 1.804(In/Hr)
Area averaged loss rate (Fm) = 0.0978(In/Hr)
Area averaged Pervious ratio (Ap) = 0.1000
7.d
Packet Pg. 1510 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 5 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 102.000 to Point/Station 203.200 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 512.000(Ft.)
Top (of initial area) elevation = 971.000(Ft.)
Bottom (of initial area) elevation = 963.000(Ft.)
Difference in elevation = 8.000(Ft.)
Slope = 0.01563 s(%)= 1.56
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 8.469 min.
Rainfall intensity = 2.260(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.861 Subarea runoff = 0.876(CFS)
Total initial stream area = 0.450(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 102.000 to Point/Station 203.200 **** CONFLUENCE OF MINOR STREAMS ****
______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2
Stream flow area = 0.450(Ac.)
Runoff from this stream = 0.876(CFS)
Time of concentration = 8.47 min.
Rainfall intensity = 2.260(In/Hr)
Area averaged loss rate (Fm) = 0.0978(In/Hr)
Area averaged Pervious ratio (Ap) = 0.1000
Summary of stream data:
Stream Flow rate Area TC Fm Rainfall Intensity
No. (CFS) (Ac.) (min) (In/Hr) (In/Hr)
1 1.56 1.010 12.33 0.098 1.804
2 0.88 0.450 8.47 0.098 2.260
Qmax(1) =
1.000 * 1.000 * 1.559) +
0.789 * 1.000 * 0.876) + = 2.250
Qmax(2) =
1.267 * 0.687 * 1.559) +
1.000 * 1.000 * 0.876) + = 2.233
Total of 2 streams to confluence:
Flow rates before confluence point:
1.559 0.876
Maximum flow rates at confluence using above data:
2.250 2.233
7.d
Packet Pg. 1511 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 6 Area of streams before confluence:
1.010 0.450
Effective area values after confluence:
1.460 1.144
Results of confluence:
Total flow rate = 2.250(CFS)
Time of concentration = 12.326 min.
Effective stream area after confluence = 1.460(Ac.)
Study area average Pervious fraction(Ap) = 0.100
Study area average soil loss rate(Fm) = 0.098(In/Hr)
Study area total (this main stream) = 1.46(Ac.)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.200 to Point/Station 203.300 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 958.000(Ft.)
Downstream point/station elevation = 952.800(Ft.)
Pipe length = 85.00(Ft.) Manning's N = 0.013
No. of pipes = 1 Required pipe flow = 2.250(CFS)
Nearest computed pipe diameter = 9.00(In.)
Calculated individual pipe flow = 2.250(CFS)
Normal flow depth in pipe = 4.76(In.)
Flow top width inside pipe = 8.98(In.)
Critical Depth = 8.05(In.)
Pipe flow velocity = 9.48(Ft/s)
Travel time through pipe = 0.15 min.
Time of concentration (TC) = 12.48 min.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.200 to Point/Station 203.300 **** CONFLUENCE OF MAIN STREAMS ****
______________________________________________________________________ The following data inside Main Stream is listed:
In Main Stream number: 2
Stream flow area = 1.460(Ac.)
Runoff from this stream = 2.250(CFS)
Time of concentration = 12.48 min.
Rainfall intensity = 1.791(In/Hr)
Area averaged loss rate (Fm) = 0.0978(In/Hr)
Area averaged Pervious ratio (Ap) = 0.1000
Summary of stream data:
Stream Flow rate Area TC Fm Rainfall Intensity
No. (CFS) (Ac.) (min) (In/Hr) (In/Hr)
1 5.36 3.630 13.20 0.202 1.731
2 2.25 1.460 12.48 0.098 1.791
Qmax(1) =
1.000 * 1.000 * 5.363) +
0.965 * 1.000 * 2.250) + = 7.534
Qmax(2) =
1.039 * 0.945 * 5.363) +
1.000 * 1.000 * 2.250) + = 7.517
Total of 2 main streams to confluence:
7.d
Packet Pg. 1512 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 7 Flow rates before confluence point:
6.363 3.250
Maximum flow rates at confluence using above data:
7.534 7.517
Area of streams before confluence:
3.630 1.460
Effective area values after confluence:
5.090 4.891
Results of confluence:
Total flow rate = 7.534(CFS)
Time of concentration = 13.201 min.
Effective stream area after confluence = 5.090(Ac.)
Study area average Pervious fraction(Ap) = 0.243
Study area average soil loss rate(Fm) = 0.172(In/Hr)
Study area total = 5.09(Ac.)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 203.300 to Point/Station 204.000 **** IMPROVED CHANNEL TRAVEL TIME ****
______________________________________________________________________ Upstream point elevation = 952.800(Ft.)
Downstream point elevation = 952.000(Ft.)
Channel length thru subarea = 362.000(Ft.)
Channel base width = 5.000(Ft.)
Slope or 'Z' of left channel bank = 4.000
Slope or 'Z' of right channel bank = 4.000
Estimated mean flow rate at midpoint of channel = 7.568(CFS) Manning's 'N' = 0.035
Maximum depth of channel = 1.000(Ft.)
Flow(q) thru subarea = 7.568(CFS)
Depth of flow = 0.733(Ft.), Average velocity = 1.301(Ft/s) Channel flow top width = 10.865(Ft.)
Flow Velocity = 1.30(Ft/s)
Travel time = 4.64 min.
Time of concentration = 17.84 min.
Critical depth = 0.375(Ft.)
Adding area flow to channel
UNDEVELOPED (poor cover) subarea
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 67.00
Pervious ratio(Ap) = 1.0000 Max loss rate(Fm)= 0.578(In/Hr) The area added to the existing stream causes a
a lower flow rate of Q = 6.980(CFS)
therefore the upstream flow rate of Q = 7.534(CFS) is being used Rainfall intensity = 1.445(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.736
Subarea runoff = 0.000(CFS) for 1.470(Ac.)
Total runoff = 7.534(CFS)
Effective area this stream = 6.56(Ac.)
Total Study Area (Main Stream No. 1) = 6.56(Ac.)
Area averaged Fm value = 0.263(In/Hr)
Depth of flow = 0.731(Ft.), Average velocity = 1.300(Ft/s)
7.d
Packet Pg. 1513 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 8 Critical depth = 0.371(Ft.)
End of computations, Total Study Area = 6.56 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.413
Area averaged SCS curve number = 46.7
7.d
Packet Pg. 1514 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction APPENDIX B.3: 100
& 10-YEAR STORM EVENT –AREA “C”
7.d
Packet Pg. 1515 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 01/14/20
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 100.0
Computed rainfall intensity:
Storm year = 100.00 1 hour rainfall = 1.080 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 301.000 to Point/Station 302.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 553.000(Ft.)
Top (of initial area) elevation = 963.500(Ft.)
Bottom (of initial area) elevation = 953.000(Ft.)
Difference in elevation = 10.500(Ft.)
Slope = 0.01899 s(%)= 1.90
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 8.400 min.
Rainfall intensity = 3.514(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.875 Subarea runoff = 1.230(CFS)
Total initial stream area = 0.400(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
End of computations, Total Study Area = 0.40 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.100
Area averaged SCS curve number = 32.0
7.d
Packet Pg. 1516 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 01/14/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
10 YEAR HYDROLOGY ANALYSIS
FILENAME: ARCPR10
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 10.0
Computed rainfall intensity:
Storm year = 10.00 1 hour rainfall = 0.698 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 301.000 to Point/Station 302.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 553.000(Ft.)
Top (of initial area) elevation = 963.500(Ft.)
Bottom (of initial area) elevation = 953.000(Ft.)
Difference in elevation = 10.500(Ft.)
Slope = 0.01899 s(%)= 1.90
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 8.400 min.
Rainfall intensity = 2.271(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.861 Subarea runoff = 0.782(CFS)
Total initial stream area = 0.400(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
End of computations, Total Study Area = 0.40 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.100
Area averaged SCS curve number = 32.0
7.d
Packet Pg. 1517 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction APPENDIX B.4: 100
& 10-YEAR STORM EVENT –AREA “D”
7.d
Packet Pg. 1518 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 01/14/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
100 YEAR HYDROLOGY ANALYSIS
FILENAME: ARDPR100
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 100.0
Computed rainfall intensity:
Storm year = 100.00 1 hour rainfall = 1.080 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 401.000 to Point/Station 402.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 567.000(Ft.)
Top (of initial area) elevation = 963.500(Ft.)
Bottom (of initial area) elevation = 953.000(Ft.)
Difference in elevation = 10.500(Ft.)
Slope = 0.01852 s(%)= 1.85
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 8.527 min.
Rainfall intensity = 3.482(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.875 Subarea runoff = 1.218(CFS)
Total initial stream area = 0.400(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
End of computations, Total Study Area = 0.40 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.100
Area averaged SCS curve number = 32.0
7.d
Packet Pg. 1519 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction San Bernardino County Rational Hydrology Program
(Hydrology Manual Date - August 1986)
CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2014 Version 9.0 Rational Hydrology Study Date: 01/14/20
------------------------------------------------------------------------
BARTON ROAD IMPROVEMENTS
10 YEAR HYDROLOGY ANALYSIS
FILENAME: ARDPR10
------------------------------------------------------------------------ Program License Serial Number 6279
------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 10.0
Computed rainfall intensity:
Storm year = 10.00 1 hour rainfall = 0.698 (In.)
Slope used for rainfall intensity curve b = 0.6000
Soil antecedent moisture condition (AMC) = 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 401.000 to Point/Station 402.000 **** INITIAL AREA EVALUATION ****
______________________________________________________________________ COMMERCIAL subarea type
Decimal fraction soil group A = 1.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 0.000
SCS curve number for soil(AMC 2) = 32.00
Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data:
Initial area flow distance = 567.000(Ft.)
Top (of initial area) elevation = 963.500(Ft.)
Bottom (of initial area) elevation = 953.000(Ft.)
Difference in elevation = 10.500(Ft.)
Slope = 0.01852 s(%)= 1.85
TC = k(0.304)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 8.527 min.
Rainfall intensity = 2.250(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.861 Subarea runoff = 0.775(CFS)
Total initial stream area = 0.400(Ac.)
Pervious area fraction = 0.100
Initial area Fm value = 0.098(In/Hr)
End of computations, Total Study Area = 0.40 (Ac.)
The following figures may
be used for a unit hydrograph study of the same area.
Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation.
Area averaged pervious area fraction(Ap) = 0.100
Area averaged SCS curve number = 32.0
7.d
Packet Pg. 1520 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction APPENDIX C: STORM
DRAIN HYDRAULIC ANALYSES
7.d
Packet Pg. 1521 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction APPENDIX C.1: BARTON
ROAD 30-INCH CULVERT
7.d
Packet Pg. 1522 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Project Description
Friction Method Manning Formula
Solve For Normal Depth
Input Data
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 2.50 ft
Discharge 8.70 ft³/s
Results
Normal Depth 0.94 ft
Flow Area 1.68 ft²
Wetted Perimeter 3.30 ft
Hydraulic Radius 0.51 ft
Top Width 2.42 ft
Critical Depth 0.98 ft
Percent Full 37.6 %
Critical Slope 0.00423 ft/ft
Velocity 5.16 ft/s
Velocity Head 0.41 ft
Specific Energy 1.35 ft
Froude Number 1.09
Maximum Discharge 31.20 ft³/s
Discharge Full 29.00 ft³/s
Slope Full 0.00045 ft/ft
Flow Type SuperCritical
GVF Input Data
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
GVF Output Data
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 37.55 %
Downstream Velocity Infinity ft/s
Worksheet for Barton Road 30-Inch Culvert Reach #1
3/3/2020 9:53:45 AM
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster V8i (SELECTseries 1) [08.11.01.03] 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 1Page of 2
7.d
Packet Pg. 1523 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction GVF Output Data
Upstream Velocity Infinity ft/s
Normal Depth 0.94 ft
Critical Depth 0.98 ft
Channel Slope 0.00500 ft/ft
Critical Slope 0.00423 ft/ft
Messages
Notes
Flows tributary to the Upstream Entrance of Pipe
Q100 = 8.6 cfs
Worksheet for Barton Road 30-Inch Culvert Reach #1
3/3/2020 9:53:45 AM
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster V8i (SELECTseries 1) [08.11.01.03] 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 2Page of 2
7.d
Packet Pg. 1524 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Project Description
Friction Method Manning Formula
Solve For Normal Depth
Input Data
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 2.50 ft
Discharge 12.20 ft³/s
Results
Normal Depth 1.13 ft
Flow Area 2.16 ft²
Wetted Perimeter 3.69 ft
Hydraulic Radius 0.58 ft
Top Width 2.49 ft
Critical Depth 1.17 ft
Percent Full 45.3 %
Critical Slope 0.00441 ft/ft
Velocity 5.65 ft/s
Velocity Head 0.50 ft
Specific Energy 1.63 ft
Froude Number 1.07
Maximum Discharge 31.20 ft³/s
Discharge Full 29.00 ft³/s
Slope Full 0.00088 ft/ft
Flow Type SuperCritical
GVF Input Data
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
GVF Output Data
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 45.25 %
Downstream Velocity Infinity ft/s
Worksheet for Barton Road 30-Inch Culvert Reach #2
3/3/2020 9:54:51 AM
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster V8i (SELECTseries 1) [08.11.01.03] 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 1Page of 2
7.d
Packet Pg. 1525 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction GVF Output Data
Upstream Velocity Infinity ft/s
Normal Depth 1.13 ft
Critical Depth 1.17 ft
Channel Slope 0.00500 ft/ft
Critical Slope 0.00441 ft/ft
Messages
Notes
Barton Rd Culvert w/ 18" Lateral
Flows tributary to the Upstream Entrance of Pipe
and Area A
Q100 = 11.2 cfs
Worksheet for Barton Road 30-Inch Culvert Reach #2
3/3/2020 9:54:51 AM
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster V8i (SELECTseries 1) [08.11.01.03] 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 2Page of 2
7.d
Packet Pg. 1526 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction APPENDIX C.2: BARTON
ROAD STORM DRAIN LINE 1
7.d
Packet Pg. 1527 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Project Description
Friction Method Manning Formula
Solve For Normal Depth
Input Data
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 1.50 ft
Discharge 2.50 ft³/s
Results
Normal Depth 0.60 ft
Flow Area 0.66 ft²
Wetted Perimeter 2.05 ft
Hydraulic Radius 0.32 ft
Top Width 1.47 ft
Critical Depth 0.60 ft
Percent Full 40.0 %
Critical Slope 0.00503 ft/ft
Velocity 3.79 ft/s
Velocity Head 0.22 ft
Specific Energy 0.82 ft
Froude Number 1.00
Maximum Discharge 7.99 ft³/s
Discharge Full 7.43 ft³/s
Slope Full 0.00057 ft/ft
Flow Type SubCritical
GVF Input Data
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
GVF Output Data
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 39.97 %
Downstream Velocity Infinity ft/s
Worksheet for Proposed 18" Connector Pipe Reach #1
3/3/2020 9:56:42 AM
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster V8i (SELECTseries 1) [08.11.01.03] 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 1Page of 2
7.d
Packet Pg. 1528 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction GVF Output Data
Upstream Velocity Infinity ft/s
Normal Depth 0.60 ft
Critical Depth 0.60 ft
Channel Slope 0.00500 ft/ft
Critical Slope 0.00503 ft/ft
Messages
Notes
Flows Tributary to South Side of Barton Road
Q100=1.3 cfs
Worksheet for Proposed 18" Connector Pipe Reach #1
3/3/2020 9:56:42 AM
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster V8i (SELECTseries 1) [08.11.01.03] 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 2Page of 2
7.d
Packet Pg. 1529 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Project Description
Friction Method Manning Formula
Solve For Normal Depth
Input Data
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 1.50 ft
Discharge 3.60 ft³/s
Results
Normal Depth 0.74 ft
Flow Area 0.86 ft²
Wetted Perimeter 2.33 ft
Hydraulic Radius 0.37 ft
Top Width 1.50 ft
Critical Depth 0.72 ft
Percent Full 49.1 %
Critical Slope 0.00529 ft/ft
Velocity 4.17 ft/s
Velocity Head 0.27 ft
Specific Energy 1.01 ft
Froude Number 0.97
Maximum Discharge 7.99 ft³/s
Discharge Full 7.43 ft³/s
Slope Full 0.00117 ft/ft
Flow Type SubCritical
GVF Input Data
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
GVF Output Data
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 49.08 %
Downstream Velocity Infinity ft/s
Worksheet for Proposed 18" Connector Pipe Reach #2
3/3/2020 9:57:16 AM
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster V8i (SELECTseries 1) [08.11.01.03] 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 1Page of 2
7.d
Packet Pg. 1530 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction GVF Output Data
Upstream Velocity Infinity ft/s
Normal Depth 0.74 ft
Critical Depth 0.72 ft
Channel Slope 0.00500 ft/ft
Critical Slope 0.00529 ft/ft
Messages
Notes
Flows Tributary to South Side and North Side of Barton Road Q100=2.7 cfs
Worksheet for Proposed 18" Connector Pipe Reach #2
3/3/2020 9:57:16 AM
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster V8i (SELECTseries 1) [08.11.01.03] 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 2Page of 2
7.d
Packet Pg. 1531 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
EXHIBITS
7.d
Packet Pg. 1532 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction EXHIBIT A: PRE-PROJECT
HYDROLOGY MAP
7.d
Packet Pg. 1533 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 41660 IVY STREET, SUITE A
MURRIETA, CA 92562
PH. 951.304.9552 FAX 951.304.3568
Engineering & Consulting, Inc.
7.d
Packet Pg. 1534 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Project) EXHIBIT B: POST-PROJECT
HYDROLOGY MAP
7.d
Packet Pg. 1535 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction • •
41660 IVY STREET, SUITE A
MURRIETA, CA 92562
PH. 951.304.9552 FAX 951.304.3568
Engineering & Consulting, Inc.
7.d
Packet Pg. 1536 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Project) EXHIBIT C: DRAINAGE
FACILITIES MAP
7.d
Packet Pg. 1537 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction 41660 IVY STREET, SUITE A
MURRIETA, CA 92562
PH. 951.304.9552 FAX 951.304.3568
Engineering & Consulting, Inc.
7.d
Packet Pg. 1538 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Project)
EXCERPTS
7.d
Packet Pg. 1539 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction EXCERPT 1: BARTON
ROAD CONCEPTUAL DESIGN
7.d
Packet Pg. 1540 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction
7.d
Packet Pg. 1541
Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction EXCERPT 2: NOAA
ATLAS 14RAINFALL VALUES
7.d
Packet Pg. 1542 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction NOAA Atlas 14, Volume 6, Version 2
Location name: Grand Terrace, California, USA*
Latitude: 34.034°, Longitude: -117.328°
Elevation: 966.68 ft**
* source: ESRI Maps
** source: USGS
POINT PRECIPITATION FREQUENCY ESTIMATES
Sanja Perica, Sarah Dietz, Sarah Heim, Lillian Hiner, Kazungu Maitaria, Deborah Martin, Sandra Pavlovic, Ishani Roy, Carl Trypaluk, Dale Unruh, Fenglin Yan, Michael Yekta, Tan Zhao, Geoffrey Bonnin, Daniel Brewer, Li-Chuan Chen, Tye Parzybok, John Yarchoan NOAA, National Weather Service, Silver Spring, Maryland PF_tabular | PF_graphical | Maps_&_aerials
PF tabular
PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches/hour)1 Duration
Average recurrence interval (years)
1 2 5 10 25 50 100 200 500 1000
5-min 1.10
(0.924-1.34)
1.42 (1.18-1.72)
1.82 (1.51-2.22)
2.16 (1.78-2.65)
2.62 (2.08-3.32)
2.98 (2.32-3.86)
3.35 (2.53-4.45)
3.73 (2.75-5.11)
4.26 (3.00-6.10)
4.68 (3.18-6.94)
10-min 0.798
(0.660-0.966)
1.01 (0.846-1.23)
1.31 (1.09-1.59)
1.55 (1.27-1.90)
1.88 (1.49-2.38)
2.13 (1.66-2.77)
2.39 (1.82-3.19)
2.67 (1.97-3.67)
3.05 (2.15-4.37)
3.35 (2.28-4.97)
15-min 0.640
(0.536-0.776)
0.816
(0.680-0.992)
1.05 (0.872-1.28)
1.24 (1.02-1.53)
1.51 (1.20-1.92)
1.72 (1.34-2.23)
1.93 (1.46-2.57)
2.16 (1.59-2.95)
2.46 (1.74-3.52)
2.70 (1.84-4.00)
30-min 0.490
(0.408-0.594)
0.624
(0.520-0.758)
0.804
(0.666-0.978)
0.950
(0.782-1.17)
1.15 (0.918-1.47)
1.31 (1.02-1.70)
1.47 (1.12-1.96)
1.64 (1.21-2.25)
1.88 (1.33-2.69)
2.06 (1.40-3.06)
60-min 0.359
(0.299-0.435)
0.458
(0.381-0.556)
0.590
(0.489-0.718)
0.698
(0.574-0.857)
0.847
(0.673-1.08)
0.963
(0.749-1.25)
1.08 (0.821-1.44)
1.21 (0.889-1.65)
1.38 (0.973-1.97)
1.51 (1.03-2.24)
2-hr 0.254
(0.212-0.308)
0.324
(0.270-0.394)
0.417
(0.346-0.508)
0.494
(0.406-0.606)
0.598
(0.476-0.760)
0.680
(0.529-0.882)
0.764
(0.579-1.02)
0.850
(0.627-1.17)
0.970
(0.685-1.39)
1.06 (0.726-1.58)
3-hr 0.208
(0.173-0.252)
0.265
(0.221-0.322)
0.341
(0.283-0.415)
0.403
(0.332-0.495)
0.489
(0.389-0.621)
0.555
(0.432-0.721)
0.623
(0.473-0.830)
0.694
(0.512-0.952)
0.792
(0.559-1.13)
0.868
(0.592-1.29)
6-hr 0.146
(0.122-0.177)
0.187
(0.155-0.226)
0.240
(0.199-0.292)
0.283
(0.233-0.348)
0.343
(0.273-0.436)
0.389
(0.303-0.506)
0.437
(0.331-0.581)
0.486
(0.358-0.666)
0.553
(0.390-0.791)
0.605
(0.412-0.897)
12-hr 0.096
(0.080-0.117)
0.123
(0.103-0.149)
0.158
(0.131-0.193)
0.187
(0.154-0.229)
0.226
(0.180-0.287)
0.256
(0.199-0.332)
0.287
(0.217-0.381)
0.318
(0.234-0.436)
0.361
(0.255-0.516)
0.394
(0.269-0.584)
24-hr 0.064
(0.057-0.074)
0.083
(0.073-0.095)
0.107
(0.094-0.123)
0.126
(0.110-0.147)
0.152
(0.129-0.183)
0.172
(0.143-0.212)
0.192
(0.156-0.242)
0.213
(0.168-0.276)
0.241
(0.182-0.325)
0.263
(0.192-0.367)
2-day 0.039
(0.035-0.045)
0.051
(0.045-0.059)
0.067
(0.059-0.077)
0.079
(0.069-0.092)
0.096
(0.082-0.116)
0.110
(0.091-0.135)
0.123
(0.100-0.155)
0.137
(0.108-0.178)
0.156
(0.118-0.210)
0.171
(0.125-0.238)
3-day 0.028
(0.025-0.032)
0.037
(0.033-0.043)
0.049
(0.043-0.057)
0.059
(0.051-0.069)
0.072
(0.061-0.087)
0.083
(0.069-0.102)
0.094
(0.076-0.118)
0.105
(0.083-0.136)
0.120
(0.091-0.162)
0.132
(0.097-0.185)
4-day 0.022
(0.020-0.026)
0.030
(0.027-0.035)
0.040
(0.035-0.046)
0.048
(0.042-0.056)
0.060
(0.051-0.072)
0.069
(0.057-0.085)
0.078
(0.063-0.098)
0.088
(0.069-0.114)
0.101
(0.077-0.136)
0.112
(0.082-0.156)
7-day 0.015
(0.013-0.017)
0.020
(0.018-0.023)
0.027
(0.023-0.031)
0.032
(0.028-0.038)
0.040
(0.034-0.048)
0.046
(0.038-0.057)
0.052
(0.042-0.066)
0.059
(0.046-0.076)
0.068
(0.051-0.091)
0.075
(0.055-0.105)
10-day 0.011
(0.010-0.013)
0.015
(0.013-0.018)
0.020
(0.018-0.024)
0.025
(0.022-0.029)
0.031
(0.026-0.037)
0.035
(0.029-0.044)
0.040
(0.033-0.051)
0.045
(0.036-0.059)
0.052
(0.040-0.071)
0.058
(0.042-0.081)
20-day 0.007
(0.006-0.008)
0.009
(0.008-0.011)
0.013
(0.011-0.015)
0.015
(0.013-0.018)
0.019
(0.016-0.023)
0.022
(0.018-0.027)
0.025
(0.020-0.032)
0.028
(0.022-0.037)
0.033
(0.025-0.044)
0.037
(0.027-0.051)
30-day 0.005
(0.005-0.006)
0.007
(0.007-0.008)
0.010
(0.009-0.012)
0.012
(0.011-0.014)
0.015
(0.013-0.018)
0.018
(0.015-0.022)
0.020
(0.016-0.025)
0.023
(0.018-0.030)
0.027
(0.020-0.036)
0.030
(0.022-0.041)
45-day 0.004
(0.004-0.005)
0.006
(0.005-0.007)
0.008
(0.007-0.009)
0.010
(0.009-0.011)
0.012
(0.010-0.015)
0.014
(0.012-0.017)
0.016
(0.013-0.021)
0.018
(0.015-0.024)
0.022
(0.016-0.029)
0.024
(0.018-0.033)
60-day 0.004
(0.003-0.004)
0.005
(0.005-0.006)
0.007
(0.006-0.008)
0.009
(0.007-0.010)
0.011
(0.009-0.013)
0.012
(0.010-0.015)
0.014
(0.012-0.018)
0.016
(0.013-0.021)
0.019
(0.014-0.025)
0.021
(0.015-0.029)
1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS).
Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values.
Please refer to NOAA Atlas 14 document for more information.
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7.d
Packet Pg. 1543 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction PF graphical
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7.d
Packet Pg. 1544 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Maps & aerials
Small scale terrain Large scale terrain
Large scale map
+–
3km
2mi
+–
100km
60mi
+–
100km
60mi
7.d
Packet Pg. 1545 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Back to Top
US Department of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
National Water Center
1325 East West Highway Silver Spring, MD 20910
Questions?: [email protected]
Disclaimer
+–
100km
60mi
7.d
Packet Pg. 1546 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction EXCERPT 3: NCRS
SOILS DATA
7.d
Packet Pg. 1547 Attachment: Exhibit C_Part2 - Barton Road Bridge Removal ISMND (3479 : CEQA - Barton Road Bridge Removal and Road Construction Hydrologic Soil Group—San Bernardino County Southwestern Part, California Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
1/13/2020