02-01-2022 Searchable Packet — Cupertino City Council, February 1, 2022 (part 3 of 4)

22690 Stevens Creek Boulevard Residential Project Mitigated Construction - Santa Clara County, Annual 22690 Stevens Creek Boulevard Residential Project Mitigated Construction Santa Clara County, Annual
353
CC 02-01-2022
353 of 756
tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 2.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 2.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 2.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstDustMitigation CleanPavedRoadPercentReduction 0 9 tblConstDustMitigation WaterUnpavedRoadVehicleSpeed 0 15 tblArchitecturalCoating EF_Residential_Exterior 150.00 50.00 tblArchitecturalCoating EF_Residential_Interior 100.00 50.00 tblArchitecturalCoating ConstArea_Parking 1,777.00 450.00 tblArchitecturalCoating ConstArea_Residential_Exterior 17,666.00 10,600.00 Trips and VMT - based on trips from applicant, assuming 2 vt/day/water truck Demolition -
Grading -
Architectural Coating - based on applicant data: <50 g/L paints, 60% exterior coating, assuming striping of parking lot and internal circulation Construction Off-road Equipment Mitigation - BAAQMD BMPs, MM: Tier 4 Interim equipment for >25 HP Table Name Column Name Default Value New Value
Off-road Equipment - based on info from applicant
Off-road Equipment - no additional equipment needed for Demo Haul Off-road Equipment - based on info from applicant
Off-road Equipment - no additional equipment for soil haul Off-road Equipment - based on info from applicant
Off-road Equipment - based on info from applicant
354
CC 02-01-2022
354 of 756
tblLandUse LandUseSquareFeet 6,210.00 6,215.00
tblGrading AcresOfGrading 3.00 4.50
tblGrading MaterialExported 0.00 875.00
tblConstructionPhase NumDays 5.00 9.00
tblGrading AcresOfGrading 2.00 15.00
tblConstructionPhase NumDays 100.00 176.00
tblConstructionPhase NumDays 5.00 9.00
tblConstructionPhase NumDays 2.00 4.00
tblConstructionPhase NumDays 2.00 4.00
tblConstructionPhase NumDays 10.00 18.00
tblConstructionPhase NumDays 1.00 2.00
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstructionPhase NumDays 10.00 18.00
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 8.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 3.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 2.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 355
CC 02-01-2022
355 of 756
tblTripsAndVMT HaulingTripNumber 34.00 36.00
tblTripsAndVMT VendorTripNumber 0.00 2.00
tblOffRoadEquipment UsageHours 7.00 8.00
tblOffRoadEquipment UsageHours 8.00 7.00
tblOffRoadEquipment UsageHours 6.00 8.00
tblOffRoadEquipment UsageHours 6.00 7.00
tblOffRoadEquipment UsageHours 1.00 8.00
tblOffRoadEquipment UsageHours 8.00 6.00
tblOffRoadEquipment UsageHours 7.00 8.00
tblOffRoadEquipment UsageHours 1.00 8.00
tblOffRoadEquipment UsageHours 6.00 7.00
tblOffRoadEquipment UsageHours 7.00 8.00
tblOffRoadEquipment UsageHours 6.00 8.00
tblOffRoadEquipment UsageHours 4.00 1.00
tblOffRoadEquipment OffRoadEquipmentUnitAmount 4.00 1.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 1.00 2.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 2.00 0.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 2.00 1.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 1.00 0.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 1.00 0.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 2.00 0.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 1.00 0.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 1.00 0.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 1.00 0.00 tblLandUse LotAcreage 0.56 0.00
tblOffRoadEquipment OffRoadEquipmentUnitAmount 2.00 3.00 tblLandUse LandUseSquareFeet 1,280.00 1,279.00
tblLandUse LandUseSquareFeet 9,000.00 26,172.00
tblLandUse LandUseSquareFeet 22,130.00 22,127.00
356
CC 02-01-2022
356 of 756

0.00 0.00 0.00 0.00 0.00 0.0039.82 91.41 67.34 41.49 90.98 80.22 NBio-CO2 Total CO2 CH4 N20 CO2e
Percent
Reduction

37.03 29.02 -7.93 0.00
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2ROG NOx CO SO2 Fugitive
PM10

0.0000 152.8585 152.8585 0.0271 0.0000 153.53530.0242 3.9500e- 003

0.0282 7.0800e-
003

3.9400e-
003

0.0110Maximum 0.1110 0.6478 1.0583 1.7500e-
003

0.0000 152.8585 152.8585 0.0271 0.0000 153.53530.0242 3.9500e- 003

0.0282 7.0800e-
003

3.9400e-
003

0.01102022 0.1110 0.6478 1.0583 1.7500e-
003
Total CO2 CH4 N2O CO2e
Year tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2
Mitigated Construction
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 152.8587 152.8587 0.0271 0.0000 153.53550.0402 0.0460 0.0862 0.0121 0.0437 0.0558Maximum 0.1763 0.9126 0.9805 1.7500e- 003

0.0000 152.8587 152.8587 0.0271 0.0000 153.53550.0402 0.0460 0.0862 0.0121 0.0437 0.05582022 0.1763 0.9126 0.9805 1.7500e- 003
CH4 N2O CO2e
Year tons/yr MT/yr
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2
Unmitigated Construction
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
tblTripsAndVMT WorkerTripNumber 4.00 3.00

2.0 Emissions Summary

2.1 Overall Construction
tblTripsAndVMT VendorTripNumber 6.00 2.00
tblTripsAndVMT WorkerTripNumber 19.00 14.00
tblTripsAndVMT VendorTripNumber 0.00 2.00
tblTripsAndVMT VendorTripNumber 0.00 2.00
357
CC 02-01-2022
357 of 756
Demolition Rubber Tired Dozers 1 8.00 247 0.40
Load Factor
Demolition Concrete/Industrial Saws 1 8.00 81 0.73
Acres of Grading (Site Preparation Phase): 4.5
Acres of Grading (Grading Phase): 15
Acres of Paving: 0.68
Residential Indoor: 52,998; Residential Outdoor: 10,600; Non-Residential Indoor: 0; Non-Residential Outdoor: 0; Striped Parking Area:

OffRoad Equipment
Phase Name Offroad Equipment Type Amount Usage Hours Horse Power 9g
8 Architectural Coating Architectural Coating 10/21/2022 11/2/2022 5 9 h 7 Paving Paving 10/8/2022 10/20/2022 5
4e
6 Building Construction Building Construction 2/4/2022 10/7/2022 5 176 f 5 Grading Soil Haul Grading 1/31/2022 2/3/2022 5
2c
4 Grading Grading 1/31/2022 2/3/2022 5 4 d
3 Site Preparation Site Preparation 1/27/2022 1/30/2022 5 18 a
2 Demolition Haul Demolition 1/1/2022 1/26/2022 5 18 b
End Date Num Days
Week
Num Days Phase Description
1 Demolition Demolition 1/1/2022 1/26/2022 5

3.0 Construction Detail
Construction Phase
Phase
Number
Phase Name Phase Type Start Date
Highest 0.4168 0.2539
6 4-1-2022 6-30-2022 0.2655 0.1910
7 7-1-2022 9-30-2022 0.2684 0.1931
Quarter Start Date End Date Maximum Unmitigated ROG + NOX (tons/quarter) Maximum Mitigated ROG + NOX (tons/quarter) 5 1-1-2022 3-31-2022 0.4168 0.2539
358
CC 02-01-2022
358 of 756
Worker Trip
Length
Vendor Trip
Length
Hauling Trip
Length
Worker Vehicle
Class
Vendor
Vehicle
Class
Hauling
Vehicle
Class
Trips and VMT
Phase Name Offroad Equipment
Count
Worker Trip
Number
Vendor Trip
Number
Hauling Trip
Number
Architectural Coating Air Compressors 1 6.00 78 0.48
Paving Tractors/Loaders/Backhoes 1 8.00 97 0.37
Paving Rollers 2 8.00 80 0.38
Paving Paving Equipment 1 8.00 132 0.36
Paving Pavers 1 8.00 130 0.42
Paving Cement and Mortar Mixers 1 8.00 9 0.56
Building Construction Welders 3 1.00 46 0.45
Building Construction Tractors/Loaders/Backhoes 1 6.00 97 0.37 Building Construction Generator Sets 1 8.00 84 0.74
Building Construction Forklifts 2 7.00 89 0.20
Building Construction Cranes 1 1.00 231 0.29
Grading Soil Haul Tractors/Loaders/Backhoes 0 6.00 97 0.37 Grading Soil Haul Rubber Tired Dozers 0 1.00 247 0.40
Grading Soil Haul Concrete/Industrial Saws 0 8.00 81 0.73 Grading Tractors/Loaders/Backhoes 2 7.00 97 0.37
Grading Rubber Tired Dozers 1 8.00 247 0.40
Grading Graders 1 8.00 187 0.41
Grading Concrete/Industrial Saws 0 8.00 81 0.73
Site Preparation Tractors/Loaders/Backhoes 1 7.00 97 0.37 Site Preparation Scrapers 1 8.00 367 0.48
Site Preparation Graders 1 8.00 187 0.41
Demolition Haul Tractors/Loaders/Backhoes 0 6.00 97 0.37 Demolition Haul Rubber Tired Dozers 0 1.00 247 0.40
Demolition Haul Concrete/Industrial Saws 0 8.00 81 0.73 Demolition Tractors/Loaders/Backhoes 3 8.00 97 0.37
359
CC 02-01-2022
359 of 756

0.0000 18.9699 18.9699 4.8300e-
003

0.0000 19.09087.5400e-
003

7.5400e-
003

7.0500e-
003

7.0500e-
003
Total 0.0152 0.1496 0.1256 2.2000e-
004

0.0000 18.9699 18.9699 4.8300e-
003

0.0000 19.09087.5400e-
003

7.5400e-
003

7.0500e-
003

7.0500e-
003
Off-Road 0.0152 0.1496 0.1256 2.2000e-
004
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2

3.2 Demolition - 2022
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

3.1 Mitigation Measures Construction
Use Cleaner Engines for Construction Equipment
Replace Ground Cover
Water Exposed Area
Reduce Vehicle Speed on Unpaved Roads
Clean Paved Roads

10.80 7.30 20.00 LD_Mix HDT_Mix HHDT

7.30 20.00 LD_Mix HDT_Mix HHDT
Architectural Coating 1 3.00 0.00 0.00
Paving 6 15.00 0.00 0.00 10.80

10.80 7.30 20.00 LD_Mix HDT_Mix HHDT

7.30 20.00 LD_Mix HDT_Mix HHDT
Building Construction 8 14.00 2.00 0.00
Grading Soil Haul 0 0.00 0.00 109.00 10.80

10.80 7.30 20.00 LD_Mix HDT_Mix HHDT

7.30 20.00 LD_Mix HDT_Mix HHDT
Grading 4 10.00 2.00 0.00
Site Preparation 3 8.00 2.00 0.00 10.80

10.80 7.30 20.00 LD_Mix HDT_Mix HHDT

7.30 20.00 LD_Mix HDT_Mix HHDT
Demolition Haul 0 0.00 0.00 36.00
Demolition 5 13.00 2.00 0.00 10.80
360
CC 02-01-2022
360 of 756
Mitigated Construction Off-Site

0.0000 18.9699 18.9699 4.8300e-
003

0.0000 19.09083.4000e-
004

3.4000e-
004

3.4000e-
004
Total 4.1700e-
003

0.0769 0.1387 2.2000e-
004

0.0000 18.9699 18.9699 4.8300e-
003

0.0000 19.09083.4000e-
004

3.4000e-
004

3.4000e-
004
Off-Road 4.1700e-
003

0.0769 0.1387 2.2000e-
004
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 1.2020 1.2020 4.0000e-
005

0.0000 1.20291.0500e-
003

1.0000e-
005

1.0500e-
003

2.8000e-
004

1.0000e-
005

2.9000e-
004
Total 3.9000e-
004

1.9700e-
003

2.9200e-
003

1.0000e-
005

0.0000 0.7403 0.7403 2.0000e-
005

0.0000 0.74069.3000e-
004

1.0000e-
005

9.3000e-
004

2.5000e-
004

1.0000e-
005

2.5000e-
004
Worker 3.4000e-
004

2.2000e-
004

2.4600e-
003

1.0000e-
005

0.0000 0.4618 0.4618 2.0000e-
005

0.0000 0.46231.2000e-
004

0.0000 1.2000e-
004

3.0000e-
005

0.0000 4.0000e-
005
Vendor 5.0000e-
005

1.7500e-
003

4.6000e-
004

0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000 0.0000 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2
Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
361
CC 02-01-2022
361 of 756
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2
Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 0.0000 0.0000 0.0000 0.0000 0.00003.6800e-
003

0.0000 3.6800e-
003

5.6000e-
004

0.0000 5.6000e-
004
Total 0.0000 0.0000 0.0000 0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Off-Road 0.0000 0.0000 0.0000 0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00003.6800e-
003

0.0000 3.6800e-
003

5.6000e-
004

0.0000 5.6000e-
004
Fugitive Dust
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2

3.3 Demolition Haul - 2022
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 1.2020 1.2020 4.0000e-
005

0.0000 1.20299.7000e-
004

1.0000e-
005

9.7000e-
004

2.6000e-
004

1.0000e-
005

2.7000e-
004
Total 3.9000e-
004

1.9700e-
003

2.9200e-
003

1.0000e-
005

0.0000 0.7403 0.7403 2.0000e-
005

0.0000 0.74068.6000e-
004

1.0000e-
005

8.6000e-
004

2.3000e-
004

1.0000e-
005

2.3000e-
004
Worker 3.4000e-
004

2.2000e-
004

2.4600e-
003

1.0000e-
005

0.0000 0.4618 0.4618 2.0000e-
005

0.0000 0.46231.1000e-
004

0.0000 1.1000e-
004

3.0000e-
005

0.0000 4.0000e-
005
Vendor 5.0000e-
005

1.7500e-
003

4.6000e-
004

0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Worker 0.0000 0.0000 0.0000 0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Vendor 0.0000 0.0000 0.0000 0.0000

0.0000 1.3372 1.3372 6.0000e-
005

0.0000 1.33872.8000e-
004

1.0000e-
005

3.0000e-
004

8.0000e-
005

1.0000e-
005

9.0000e-
005
Hauling 1.3000e-
004

4.4200e-
003

1.0300e-
003

1.0000e-
005
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2
Mitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 0.0000 0.0000 0.0000 0.0000 0.00001.5800e-
003

0.0000 1.5800e-
003

2.4000e-
004

0.0000 2.4000e-
004
Total 0.0000 0.0000 0.0000 0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Off-Road 0.0000 0.0000 0.0000 0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00001.5800e-
003

0.0000 1.5800e-
003

2.4000e-
004

0.0000 2.4000e-
004
Fugitive Dust
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 1.3372 1.3372 6.0000e-
005

0.0000 1.33873.1000e-
004

1.0000e-
005

3.2000e-
004

8.0000e-
005

1.0000e-
005

1.0000e-
004
Total 1.3000e-
004

4.4200e-
003

1.0300e-
003

1.0000e-
005

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Worker 0.0000 0.0000 0.0000 0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Vendor 0.0000 0.0000 0.0000 0.0000

0.0000 1.3372 1.3372 6.0000e-
005

0.0000 1.33873.1000e-
004

1.0000e-
005

3.2000e-
004

8.0000e-
005

1.0000e-
005

1.0000e-
004
Hauling 1.3000e-
004

4.4200e-
003

1.0300e-
003

1.0000e-
005
363
CC 02-01-2022
363 of 756
Mitigated Construction On-Site

0.0000 0.1019 0.1019 0.0000 0.0000 0.10207.0000e-
005

0.0000 7.0000e-
005

2.0000e-
005

0.0000 2.0000e-
005
Total 3.0000e-
005

2.1000e-
004

2.2000e-
004

0.0000

0.0000 0.0506 0.0506 0.0000 0.0000 0.05066.0000e-
005

0.0000 6.0000e-
005

2.0000e-
005

0.0000 2.0000e-
005
Worker 2.0000e-
005

2.0000e-
005

1.7000e-
004

0.0000

0.0000 0.0513 0.0513 0.0000 0.0000 0.05141.0000e-
005

0.0000 1.0000e-
005

0.0000 0.0000 0.0000Vendor 1.0000e-
005

1.9000e-
004

5.0000e-
005

0.0000

0.0000 2.1547 2.1547 7.0000e-
004

0.0000 2.17212.3900e-
003

6.0000e-
004

2.9900e-
003

2.6000e-
004

5.5000e-
004

8.1000e-
004
Total 1.3800e-
003

0.0157 0.0101 2.0000e-
005

0.0000 2.1547 2.1547 7.0000e-
004

0.0000 2.17216.0000e-
004

6.0000e-
004

5.5000e-
004

5.5000e-
004
Off-Road 1.3800e-
003

0.0157 0.0101 2.0000e-
005

0.0000 0.0000 0.0000 0.0000 0.0000 0.00002.3900e-
003

0.0000 2.3900e-
003

2.6000e-
004

0.0000 2.6000e-
004
Fugitive Dust
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2

3.4 Site Preparation - 2022
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 1.3372 1.3372 6.0000e-
005

0.0000 1.33872.8000e-
004

1.0000e-
005

3.0000e-
004

8.0000e-
005

1.0000e-
005

9.0000e-
005
Total 1.3000e-
004

4.4200e-
003

1.0300e-
003

1.0000e-
005
364
CC 02-01-2022
364 of 756
Total CO2 CH4 N2O CO2ePM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2

3.5 Grading - 2022
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 0.1019 0.1019 0.0000 0.0000 0.10207.0000e-
005

0.0000 7.0000e-
005

2.0000e-
005

0.0000 2.0000e-
005
Total 3.0000e-
005

2.1000e-
004

2.2000e-
004

0.0000

0.0000 0.0506 0.0506 0.0000 0.0000 0.05066.0000e-
005

0.0000 6.0000e-
005

2.0000e-
005

0.0000 2.0000e-
005
Worker 2.0000e-
005

2.0000e-
005

1.7000e-
004

0.0000

0.0000 0.0513 0.0513 0.0000 0.0000 0.05141.0000e-
005

0.0000 1.0000e-
005

0.0000 0.0000 0.0000Vendor 1.0000e-
005

1.9000e-
004

5.0000e-
005

0.0000

0.0000 2.1547 2.1547 7.0000e-
004

0.0000 2.17211.0200e-
003

4.0000e-
005

1.0600e-
003

1.1000e-
004

4.0000e-
005

1.5000e-
004
Total 4.2000e-
004

6.9400e-
003

0.0136 2.0000e-
005

0.0000 2.1547 2.1547 7.0000e-
004

0.0000 2.17214.0000e-
005

4.0000e-
005

4.0000e-
005
Off-Road 4.2000e-
004

6.9400e-
003

0.0136 2.0000e-
005

0.0000 0.0000 0.0000 0.0000 0.0000 0.00001.0200e-
003

0.0000 1.0200e-
003

1.1000e-
004

0.0000 1.1000e-
004
Fugitive Dust
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
365
CC 02-01-2022
365 of 756

0.0000 0.0000 0.0000 0.0000 0.0000 0.00008.5500e-
003

0.0000 8.5500e-
003

3.2000e-
003

0.0000 3.2000e-
003
Fugitive Dust
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 0.2292 0.2292 0.0000 0.0000 0.22931.9000e-
004

0.0000 1.9000e-
004

5.0000e-
005

0.0000 5.0000e-
005
Total 7.0000e-
005

4.3000e-
004

5.2000e-
004

0.0000

0.0000 0.1265 0.1265 0.0000 0.0000 0.12661.6000e-
004

0.0000 1.6000e-
004

4.0000e-
005

0.0000 4.0000e-
005
Worker 6.0000e-
005

4.0000e-
005

4.2000e-
004

0.0000

0.0000 0.1026 0.1026 0.0000 0.0000 0.10273.0000e-
005

0.0000 3.0000e-
005

1.0000e-
005

0.0000 1.0000e-
005
Vendor 1.0000e-
005

3.9000e-
004

1.0000e-
004

0.0000

0.0000 3.6205 3.6205 1.1700e-
003

0.0000 3.64980.0200 1.4800e-
003

0.0215 7.4800e-
003

1.3700e-
003

8.8500e-
003
Total 3.0800e-
003

0.0340 0.0184 4.0000e-
005

0.0000 3.6205 3.6205 1.1700e-
003

0.0000 3.64981.4800e-
003

1.4800e-
003

1.3700e-
003

1.3700e-
003
Off-Road 3.0800e-
003

0.0340 0.0184 4.0000e-
005

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0200 0.0000 0.0200 7.4800e- 003

0.0000 7.4800e-
003
Fugitive Dust
Category tons/yr MT/yr
366
CC 02-01-2022
366 of 756

0.0000 0.0000 0.0000 0.0000 0.0000 0.00005.0000e-
005

0.0000 5.0000e-
005

1.0000e-
005

0.0000 1.0000e-
005
Total 0.0000 0.0000 0.0000 0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Off-Road 0.0000 0.0000 0.0000 0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00005.0000e-
005

0.0000 5.0000e-
005

1.0000e-
005

0.0000 1.0000e-
005
Fugitive Dust
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2

3.6 Grading Soil Haul - 2022
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 0.2292 0.2292 0.0000 0.0000 0.22931.7000e-
004

0.0000 1.8000e-
004

5.0000e-
005

0.0000 5.0000e-
005
Total 7.0000e-
005

4.3000e-
004

5.2000e-
004

0.0000

0.0000 0.1265 0.1265 0.0000 0.0000 0.12661.5000e-
004

0.0000 1.5000e-
004

4.0000e-
005

0.0000 4.0000e-
005
Worker 6.0000e-
005

4.0000e-
005

4.2000e-
004

0.0000

0.0000 0.1026 0.1026 0.0000 0.0000 0.10272.0000e-
005

0.0000 3.0000e-
005

1.0000e-
005

0.0000 1.0000e-
005
Vendor 1.0000e-
005

3.9000e-
004

1.0000e-
004

0.0000

0.0000 3.6205 3.6205 1.1700e-
003

0.0000 3.64988.5500e-
003

7.0000e-
005

8.6200e-
003

3.2000e-
003

7.0000e-
005

3.2700e-
003
Total 7.4000e-
004

0.0127 0.0243 4.0000e-
005

0.0000 3.6205 3.6205 1.1700e-
003

0.0000 3.64987.0000e-
005

7.0000e-
005

7.0000e-
005
Off-Road 7.4000e-
004

0.0127 0.0243 4.0000e-
005
367
CC 02-01-2022
367 of 756
Mitigated Construction Off-Site

0.0000 0.0000 0.0000 0.0000 0.0000 0.00002.0000e-
005

0.0000 2.0000e-
005

0.0000 0.0000 0.0000Total 0.0000 0.0000 0.0000 0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Off-Road 0.0000 0.0000 0.0000 0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00002.0000e-
005

0.0000 2.0000e-
005

0.0000 0.0000 0.0000Fugitive Dust
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 4.0487 4.0487 1.8000e-
004

0.0000 4.05339.2000e-
004

4.0000e-
005

9.6000e-
004

2.5000e-
004

4.0000e-
005

2.9000e-
004
Total 4.0000e-
004

0.0134 3.1200e-
003

4.0000e-
005

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Worker 0.0000 0.0000 0.0000 0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Vendor 0.0000 0.0000 0.0000 0.0000

0.0000 4.0487 4.0487 1.8000e-
004

0.0000 4.05339.2000e-
004

4.0000e-
005

9.6000e-
004

2.5000e-
004

4.0000e-
005

2.9000e-
004
Hauling 4.0000e-
004

0.0134 3.1200e-
003

4.0000e-
005
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2
Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
368
CC 02-01-2022
368 of 756
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2
Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 100.2434 100.2434 0.0174 0.0000 100.67920.0337 0.0337 0.0322 0.0322Total 0.0706 0.6250 0.7256 1.1700e- 003

0.0000 100.2434 100.2434 0.0174 0.0000 100.67920.0337 0.0337 0.0322 0.0322Off-Road 0.0706 0.6250 0.7256 1.1700e- 003
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2

3.7 Building Construction - 2022
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 4.0487 4.0487 1.8000e-
004

0.0000 4.05338.6000e-
004

4.0000e-
005

9.0000e-
004

2.4000e-
004

4.0000e-
005

2.8000e-
004
Total 4.0000e-
004

0.0134 3.1200e-
003

4.0000e-
005

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Worker 0.0000 0.0000 0.0000 0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Vendor 0.0000 0.0000 0.0000 0.0000

0.0000 4.0487 4.0487 1.8000e-
004

0.0000 4.05338.6000e-
004

4.0000e-
005

9.0000e-
004

2.4000e-
004

4.0000e-
005

2.8000e-
004
Hauling 4.0000e-
004

0.0134 3.1200e-
003

4.0000e-
005
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
369
CC 02-01-2022
369 of 756

0.0000 7.7948 7.7948 1.6000e-
004

0.0000 7.79899.0100e-
003

6.0000e-
005

9.0700e-
003

2.4100e-
003

6.0000e-
005

2.4700e-
003
Worker 3.5400e-
003

2.3600e-
003

0.0259 9.0000e-
005

0.0000 4.5153 4.5153 1.9000e-
004

0.0000 4.52001.0800e-
003

3.0000e-
005

1.1200e-
003

3.2000e-
004

3.0000e-
005

3.5000e-
004
Vendor 5.4000e-
004

0.0171 4.5300e-
003

5.0000e-
005

0.0000 100.2433 100.2433 0.0174 0.0000 100.67913.1400e- 003

3.1400e-
003

3.1400e-
003
Total 0.0230 0.4709 0.7736 1.1700e-
003

0.0000 100.2433 100.2433 0.0174 0.0000 100.67913.1400e- 003

3.1400e-
003

3.1400e-
003
Off-Road 0.0230 0.4709 0.7736 1.1700e-
003
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 12.3101 12.3101 3.5000e-
004

0.0000 12.31900.0109 9.0000e-
005

0.0110 2.9300e-
003

9.0000e-
005

3.0200e-
003
Total 4.0800e-
003

0.0195 0.0304 1.4000e-
004

0.0000 7.7948 7.7948 1.6000e-
004

0.0000 7.79899.7700e-
003

6.0000e-
005

9.8300e-
003

2.6000e-
003

6.0000e-
005

2.6500e-
003
Worker 3.5400e-
003

2.3600e-
003

0.0259 9.0000e-
005

0.0000 4.5153 4.5153 1.9000e-
004

0.0000 4.52001.1600e-
003

3.0000e-
005

1.1900e-
003

3.3000e-
004

3.0000e-
005

3.7000e-
004
Vendor 5.4000e-
004

0.0171 4.5300e-
003

5.0000e-
005

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000 0.0000 370
CC 02-01-2022
370 of 756
Mitigated Construction On-Site

0.0000 0.4271 0.4271 1.0000e-
005

0.0000 0.42735.4000e-
004

0.0000 5.4000e-
004

1.4000e-
004

0.0000 1.5000e-
004
Total 1.9000e-
004

1.3000e-
004

1.4200e-
003

0.0000

0.0000 0.4271 0.4271 1.0000e-
005

0.0000 0.42735.4000e-
004

0.0000 5.4000e-
004

1.4000e-
004

0.0000 1.5000e-
004
Worker 1.9000e-
004

1.3000e-
004

1.4200e-
003

0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Vendor 0.0000 0.0000 0.0000 0.0000

0.0000 6.9795 6.9795 2.2100e-
003

0.0000 7.03482.2000e-
003

2.2000e-
003

2.0200e-
003

2.0200e-
003
Total 4.4600e-
003

0.0420 0.0526 8.0000e-
005

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Paving 2.2000e- 004

0.0000 6.9795 6.9795 2.2100e-
003

0.0000 7.03482.2000e-
003

2.2000e-
003

2.0200e-
003

2.0200e-
003
Off-Road 4.2400e-
003

0.0420 0.0526 8.0000e-
005
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2

3.8 Paving - 2022
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 12.3101 12.3101 3.5000e-
004

0.0000 12.31900.0101 9.0000e-
005

0.0102 2.7300e-
003

9.0000e-
005

2.8200e-
003
Total 4.0800e-
003

0.0195 0.0304 1.4000e-
004
371
CC 02-01-2022
371 of 756
Total CO2 CH4 N2O CO2ePM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2

3.9 Architectural Coating - 2022
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 0.4271 0.4271 1.0000e-
005

0.0000 0.42734.9000e-
004

0.0000 5.0000e-
004

1.3000e-
004

0.0000 1.4000e-
004
Total 1.9000e-
004

1.3000e-
004

1.4200e-
003

0.0000

0.0000 0.4271 0.4271 1.0000e-
005

0.0000 0.42734.9000e-
004

0.0000 5.0000e-
004

1.3000e-
004

0.0000 1.4000e-
004
Worker 1.9000e-
004

1.3000e-
004

1.4200e-
003

0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Vendor 0.0000 0.0000 0.0000 0.0000

0.0000 6.9795 6.9795 2.2100e-
003

0.0000 7.03481.9000e-
004

1.9000e-
004

1.9000e-
004
Total 1.8100e-
003

0.0355 0.0598 8.0000e-
005

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Paving 2.2000e- 004

0.0000 6.9795 6.9795 2.2100e-
003

0.0000 7.03481.9000e-
004

1.9000e-
004

1.9000e-
004
Off-Road 1.5900e-
003

0.0355 0.0598 8.0000e-
005
Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
372
CC 02-01-2022
372 of 756

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Archit. Coating 0.0753 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10

0.0000 0.0854 0.0854 0.0000 0.0000 0.08551.1000e-
004

0.0000 1.1000e-
004

3.0000e-
005

0.0000 3.0000e-
005
Total 4.0000e-
005

3.0000e-
005

2.8000e-
004

0.0000

0.0000 0.0854 0.0854 0.0000 0.0000 0.08551.1000e-
004

0.0000 1.1000e-
004

3.0000e-
005

0.0000 3.0000e-
005
Worker 4.0000e-
005

3.0000e-
005

2.8000e-
004

0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Vendor 0.0000 0.0000 0.0000 0.0000

0.0000 1.1490 1.1490 7.0000e-
005

0.0000 1.15083.7000e-
004

3.7000e-
004

3.7000e-
004
Total 0.0762 6.3400e-
003

8.1600e-
003

1.0000e-
005

0.0000 1.1490 1.1490 7.0000e-
005

0.0000 1.15083.7000e-
004

3.7000e-
004

3.7000e-
004
Off-Road 9.2000e-
004

6.3400e-
003

8.1600e-
003

1.0000e-
005

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Archit. Coating 0.0753 Category tons/yr MT/yr
373
CC 02-01-2022
373 of 756

0.0000 0.0854 0.0854 0.0000 0.0000 0.08551.0000e-
004

0.0000 1.0000e-
004

3.0000e-
005

0.0000 3.0000e-
005
Total 4.0000e-
005

3.0000e-
005

2.8000e-
004

0.0000

0.0000 0.0854 0.0854 0.0000 0.0000 0.08551.0000e-
004

0.0000 1.0000e-
004

3.0000e-
005

0.0000 3.0000e-
005
Worker 4.0000e-
005

3.0000e-
005

2.8000e-
004

0.0000

0.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.0000Vendor 0.0000 0.0000 0.0000 0.0000

0.0000 1.1490 1.1490 7.0000e-
005

0.0000 1.15082.0000e-
005

2.0000e-
005

2.0000e-
005
Total 0.0755 4.7700e-
003

8.2500e-
003

1.0000e-
005

0.0000 1.1490 1.1490 7.0000e-
005

0.0000 1.15082.0000e-
005

2.0000e-
005

2.0000e-
005
Off-Road 2.5000e-
004

4.7700e-
003

8.2500e-
003

1.0000e-
005
374
CC 02-01-2022
374 of 756
375
CC 02-01-2022
375 of 756
........................................................................................................................

A PPENDIX B :

H EALTH R ISK A SSESSMENT

376
CC 02-01-2022
376 of 756
........................................................................................................................

377
CC 02-01-2022
377 of 756
Health Risk Assessment Background and Modeling Data
Health Risk Assessment Background and Modeling Data

1. Health Risk Assessment

1.1 CONSTRUCTION HEALTH RISK ASSESSMENT
The City of Cupertino (City) proposes to redevelop the project site with a residential development located at 22690 Stevens Creek Boulevard in Cupertino, California. The proposed project would involve demolishing the existing commercial building on an approximately 0.68-acre site and construction of a nine-unit, single- family attached residential, with one accessory dw elling unit. The site is currently developed with a convenience store and associated paved surface parking. A portion of the site is an undeveloped and unpaved lot. The following provides the background methodology used for the construction health risk assessment for the proposed project.

The latest version of the Bay Area Air Quality Management District (BAAQMD) CEQA Air Quality Guidelines requires projects to evaluate the impact s of construction activities on sensitive receptors (BAAQMD, 2017). Project construction is anticipated to take pl ace starting at the beginning of January 2022 and be completed by November 2022 (approximately 218 wo rkdays). The nearest sensitive receptors to the project site include the adja cent single-family residences to the south. Additional sensitive receptors within 1,000 feet of the site are senior living residents at Sunny View Bay Area Retirement Community, approximately 525 feet to the northeast. The BAAQMD has developed Screening Tables for Air Toxics Evaluation During Construction (2017) that evaluate constr uction-related health risks as sociated with residential, commercial, and industrial projects. According to the screening tables, the receptors are closer than the distance of 100 meters (328 feet) that would screen out potential health risks and, therefore, could be potentially impacted from the proposed construction activi ties. As a result, a site-specific construction health risk assessment (HRA) has been prepared for the proposed project. This HRA considers the health impact to off-site sensitive receptors (i.e., children at the nearby residences and senior living residents) from construction emissions at the project site, including di esel equipment exhaust (diesel particulate matter or DPM) and particulate matter less than 2.5 microns (PM

2.5).

It should be noted that these health impacts are based on conservative (i.e., health protective) assumptions.

The United States Environmental Protection Agency (USEPA, 2005) and the Office of Environmental Health Hazard Assessment (OEHHA, 2015) note that conservative assumptions used in a risk assessment are intended to ensure that the estimated risks do not unde restimate the actual risks. Therefore, the estimated risks may not necessarily represent ac tual risks experienced by populations at or near a site. The use of conservative assumptions tends to produce upper-bound estimates of exposure and thus risk.

For residential-based receptors, the following conservative assumptions were used:
 It was assumed that maximum-exposed off-site residential receptors (both children and adults) stood outdoors and are subject to DPM at their residence for 8 hours per day, and approximately 260 construction days per year. In reality, California re sidents typically will spend on average 2 hours per day 378
CC 02-01-2022
378 of 756

Page 2 ends

outdoors at their residences (USEPA, 2011). This would result in lower exposures to construction related DPM emissions and lower estimated risk values.
 The calculated risk for infants from third trimester to age 2 is multiplied by a factor of 10 to account for early life exposure and uncertainty in child versus adult exposure impacts (OEHHA, 2015).

For senior living residents, the following conservative assumptions were used:
 It was assumed that maximum exposed receptor (senior living resident) stood outside and are subject to DPM at the retirement community for 8 hours per weekday and approximately 260 construction days per year.

1.2 METHODOLOGY AND SIGNIFICANCE THRESHOLDS
For this HRA, the BAAQMD significance thresholds we re deemed to be appropriate and the thresholds that were used for this project are shown below:
 Excess cancer risk of more than 10 in a million
 Non-cancer hazard index (chronic or acute) greater than 1.0  Incremental increase in average annual PM2.5 concentration of greater than 0.3 μg/m3

The methodology used in this HRA is consistent with the following BAAQMD and the OEHHA guidance documents:
 BAAQMD, 2017. California Environmental Quality Act (CEQA) Air Quality Guidelines. May 2017.  BAAQMD, 2016. Planning Healthy Places. May 2016.
 BAAQMD, 2010. Screening Tables for Air Toxics Evaluation During Construction. May 2010.  BAAQMD, 2012. Recommended Methods for Screening and Modeling Local Risks and Hazards . Version 3.0. May 2012.
 OEHHA. 2015. Air Toxics Hot Spots Program Guidance Manual for the Preparation of Health Risk Assessments.

February 2015.

Potential exposures to DPM and PM 2.5 from proposed project construction were evaluated for off-site sensitive receptors in close proximity to the site. Pollutant concentrations were estimated using an air dispersion model, and excess lifetime cancer risks and chronic non-cancer hazard indexes were calculated.

These risks were then compared to the significance thresholds adopted for this HRA.

379
CC 02-01-2022
379 of 756
Health Risk Assessment Background and Modeling Data Page 3

1.3 CONSTRUCTION EMISSIONS
Construction emissions were calculated as average da ily emissions in pounds per day, using the proposed construction schedule and the latest version of California Emissions Estimation Model, known as CalEEMod Version 2016.3.2 (CAPCOA, 2016). DPM emissi ons were based on the CalEEMod construction runs, using annual exhaust PM 10 construction emissions presented in pounds (lbs) per day. The PM 2.5 emissions were taken from the CalEEMod output for exhaust PM2.5 also presented in lbs per day.

The project was assumed to take place over 10 months years (218 work days) from January 2022 to November 2022. The average daily emission rates from construction equipment used during the proposed project were determined by dividing the annual average emissions for each construction year by the number of construction days per year for each calendar year of construction (i.e., 2022). The off-site hauling emission rates were adjusted to evaluate lo calized emissions from the 0.42-mile haul route within 1,000 feet of the project site. The CalEEMod construction emissions outp ut and emission rate calculations are provided in Appendix A of the HRA.

1.4 DISPERSION MODELING
Air quality modeling was performed using the AERMOD at mospheric dispersion model to assess the impact of emitted compounds on sensitive receptors near the project. The model is a steady state Gaussian plume model and is an approved model by BAAQMD for estimating ground level impacts from point and fugitive sources in simple and complex terrain. The on-site construction emissions for the project were modeled as poly-area sources. The off-site mobile sources were modeled as adjacent line volume sources. The model requires additional input parameters, including chemical emission data and local meteorology. Inputs for the construction emission rates are those described in Section 1.3. Meteorological data obtained from the BAAQMD for the nearest representative meteorological station (Moffett Federal Airfield Airport) with the five latest available years (2009 to 2013) of record were used to represent loca l weather conditions and prevailing winds.

The modeling analysis also considered the spatial di stribution and elevation of each emitting source in relation to the sensitive receptors. To accommodate the model’s Cartesian grid format, direction-dependent calculations were obtained by iden tifying the Universal Transverse Mercator (UTM) coordinates for each source location. In addition, digital elevation model (DEM) data for the area were obtained and included in the model runs to account for complex terrain. An emission release height of 4.15 meters was used as representative of the stack exhaust height for off-road construction equipment and diesel truck traffic, and an initial vertical dispersion parameter of 1.93 m was used, per California Air Resources Board (CARB) guidance (2000).

To determine contaminant impacts during construction hours, the model’s Season-Hour-Day (HRDOW) scalar option was invoked to predict flagpole-level concentrations (1.5 m for receptors) for construction emissions generated between the hours of 7:00 AM and 4:00 PM with a 1-hour lunch break. In addition, a scalar factor was applied to the risk calculations to account for the number of days receptors are exposed to construction emissions per year.
380
CC 02-01-2022
380 of 756

Page 4 ends

A unit emission rate of 1 gram per second was used for all modeling runs. The unit emission rates were proportioned over the poly-area sources for on-site construction emissions and divided between the volume sources for off-site hauling emissions. The maximum modeled concentrations from the output files were then multiplied by the emission rates calculated in Appendix A to obtain the maximum flagpole-level concentrations at the off-site maximum exposed receptors (MER). The off-site MER is a single-family residence immediately south of the site. The MER loc ation is the receptor location associated with the maximum predicted AERMOD concentrations from the on-site emission source. The calculated on-site emission rates are approximately 4 orders of magnitude higher than the calculated off-site emission rates (see Appendix A). Therefore, the maximum concentrations a ssociated with the on-site emission sources produce the highest overall ground-level MER concentrations and, consequently, highest calculated health risks.

The air dispersion model output for the emission so urces is presented in Appendix B. The model output

DPM and PM2.5 concentrations from the construction emission sources are provided in Appendix C.

1.5 RISK CHARACTERIZATION

1.5.1 Carcinogenic Chemical Risk
A threshold of ten in a million (10x10 -6) has been established as a level posing no significant risk for exposures to carcinogens. Health risks associated with exposure to carcinogenic compounds can be defined in terms of the probability of developing cancer as a result of exposure to a chemical at a given concentration.

The cancer risk probability is determined by multiplyin g the chemical’s annual concentration by its cancer potency factor (CPF), a measure of the carcinogenic potential of a chemical when a dose is received through the inhalation pathway. It is an upper-limit estimate of the probability of contract ing cancer as a result of continuous exposure to an ambient concentr ation of one microgram per cubic meter (µg/m 3) over a lifetime of 70 years.

Recent guidance from OEHHA recommends a refinement to the standard point estimate approach with the use of age-specific breathing rates and age sensitivity factors (ASFs) to a ssess risk for susceptible subpopulations such as children. For the inhalation pathway, the procedure requires the incorporation of several discrete variates to effectively quantify dose for each age group. Once determined, contaminant dose is multiplied by the cancer potency fa ctor in units of inverse dose expressed in milligrams per kilogram per day (mg/kg/day)
-1 to derive the cancer risk estimate. Therefore, to accommodate the unique exposures associated with the sensitive receptors, the following dose algorithm was used.

Dose୅୍ୖ,୮ୣ୰ ୟ୥ୣ ୥୰୭୳୮ ൌ ሺCୟ୧୰ ൈ EF ൈ ሾ BR
BWሿ ൈ A ൈ CFሻ
Where:

DoseAIR = dose by inhalation (mg/kg-day), per age group Cair = concentration of contaminant in air (µg/m 3)
EF = exposure frequency (number of days/365 days)
BR/BW = daily breathing rate norma lized to body weight (L/kg-day) A = inhalation absorption factor (default = 1)
CF = conversion factor (1x10
-6, µg to mg, L to m3)
381
CC 02-01-2022
381 of 756
Health Risk Assessment Background and Modeling Data Page 5 The inhalation absorption factor (A) is a unitless factor that is only used if the cancer potency factor included a correction for absorption across the lung. The defa ult value of 1 was used for this assessment. For residential receptors, the exposure frequency (EF) of 0.96 is used to represent 350 days per year to allow for a two week period away from home each year (OEHHA, 2015). The 95 th percentile dail y breathing rates (BR/BW), exposure duration (ED), age sensitivity factors (ASFs), and fraction of time at home (FAH) for the various age groups are provided herein:

Age Groups BR/BW (L/kg-day) ED ASF FAH
Third trimester 361 0.25 10 0.85
0-2 age group 1,090 2 10 0.85
2-9 age group 861 7 3 0.72
2-16 age group 745 14 3 0.72
16-30 age group 335 14 1 0.73
16-70 age group 290 54 1 0.73
For construction analysis, the expos ure duration spans the length of construction (e.g. 218 work days, approximately 0.84 year). As the length of construction is less than 2 years, only the third trimester and 0-2 age bins apply to the construction analysis for the off-site residential receptors.

To represent the unique characteristics of senior living populations, the assessment employed the USEPA’s guidance to develop viable dose estimates based on reasonable maximum exposure, defined as the “highest exposure that is reasonably expected to occur” for a given receptor population. To assess senior living residential risk, exposures were adjusted to account for an employment period of 365 days per year for 30 years. This timeline is considered appropriate for potential senior living exposures established by OEHHA.

To calculate the overall cancer risk, the risk for each appropriate age group is calculated per the following equation:

Cancer Risk
୅୍ୖ ൌ Dose ୅୍ୖ ൈ CPF ൈ ASF ൈ FAH ൈ ED
𝐴𝑇
Where:

DoseAIR = dose by inhalation (mg/kg-day), per age group CPF = cancer potency factor, chemical-specific (mg/kg-day) -1 ASF = age sensitivity factor, per age group
FAH = fraction of time at home, per age group (for residential receptors only) ED = exposure duration (years)
AT = averaging time period over which exposure duration is averaged (70 years) The CPFs used in the assessment were obtained from OEHHA guidance. The excess lifetime cancer risks during the construction period to the maximally exposed resident were calculated based on the factors provided above. The cancer risks for each age group are summed to estimate the total cancer risk for each toxic chemical species. The final step converts the cancer risk in scientific notation to a whole number that expresses the cancer risk in “chances per million” by multiplying the cancer risk by a factor of 1x10 6 (i.e. 1
million).
382
CC 02-01-2022
382 of 756

Page 6 ends

The calculated results are provided in Appendix C.

1.5.2 Non-Carcinogenic Hazards
An evaluation was also conducted of the potential non-cancer effects of chronic chemical exposures. Adverse health effects are evaluated by comparing the annual receptor level (flagpole) concentration of each chemical compound with the appropriate reference exposure limit (REL). Available RELs promulgated by OEHHA were considered in the assessment.

The hazard index approach was used to quantify non-ca rcinogenic impacts. The hazard index assumes that chronic sub-threshold exposures adversely affect a specific organ or organ system (toxicological endpoint).

Target organs presented in regulatory guidance were us ed for each discrete chemic al exposure. To calculate the hazard index, each chemical concentration or dose is divided by the appropriate toxicity value. This ratio is summed for compounds affecting the same toxicological endpoint. A health hazard is presumed to exist where the total equals or exceeds one.

The chronic hazard analysis for DPM is provided in Appendix C. The calculations contain the relevant exposure concentrations and corresponding reference dose values used in the evaluation of non-carcinogenic exposures.

1.5.3 Criteria Pollutants
The BAAQMD has recently incorporated PM 2.5 into the District’s CEQA significance thresholds due to recent studies that show adverse health impacts from ex posure to this pollutant. An incremental increase of greater than 0.3 µg/m3 for the annual average PM2.5 concentration is considered to be a significant impact.

383
CC 02-01-2022
383 of 756
Health Risk Assessment Background and Modeling Data Page 7

1.6 CONSTRUCTION HRA RESULTS
The calculated results are provided in Appendix C and the results are summarized in Table 1.

TABLE 1. CONSTRUCTION RISK SUMMARY ‐ UNMITIGATED
Receptor
Cancer Risk
(per million)
Chronic
Hazards
PM2.5
(µg/m3)
Maximum Exposed Receptor – Off-site Resident 59.4 0.133 0.63 Maximum Exposed Receptor – Senior Living Resident 0.009 0.002 0.001 BAAQMD Threshold 10 1.0 0.30
Exceeds Threshold? Yes No Yes
Note: Cancer risk calculated using 2015 OEHHA HRA guidance.

Cancer risk for the residential MER from project-related construction emissions was calculated to be 59.4in a million, which exceeds the 10 in a million significance threshold. In accordance with the latest 2015 OEHHA guidance, the calculated total cancer risk conservati vely assumes that the risk for the MER consists of a pregnant woman in the third trimester that subsequently gives birth to an infant during the approximately 10- month construction period; therefore, all calculated risk values were multiplied by a factor of 10. In addition, it was conservatively assumed that the residents were outdoors 8 hours a day, 260-261 construction days per year and exposed to all of the daily construction emi ssions. The cancer risk for the maximum exposed senior living residential receptor would not exceed 10 per million.

For non-carcinogenic effects, the chronic hazard index id entified for each toxicological endpoint totaled less than one for all the off-site sensitive receptors. Therefore, chronic non-carcinogenic hazards are within acceptable limits. For the reside ntial MER, the maximum annual PM

2.5 concentration of 0.63 µg/m3 exceeds
the BAAQMD significance threshold of 0.3 micrograms per cubic meter (µg/m 3). However, the maximum annual PM2.5 concentration for the maximum exposed senior living residential receptor does not exceed the threshold.

The following mitigation measure to project construc tion equipment is proposed because the incremental cancer risk and maximum annual PM 2.5 concentration at the residential MER would exceed BAAQMD’s significance thresholds:

Mitigation Measure AQ-2: During construction, the construction contractor(s) shall:
 Use construction equipment that meets the United States Environmental Protection Agency’s (EPA) Tier 4 Interim emissions standards for of f-road diesel-powered construction equipment with more than 25 horsepower, unless it can be demonstrated to the City of Cupertino Building Division that such equipment is not availabl e. Any emissions control device used by the contractor shall achieve emissions reductions that are no less than what could be achieved by Tier 4 Interim emissions standards for a similarl y sized engine, as defined by the California Air Resources Board’s regulations.
384
CC 02-01-2022
384 of 756

Page 8 ends

 Prior to issuance of any construction permit, ensure that all construction plans submitted to the City of Cupertino Planning Department and/or Building Division clearly show the requirement for EPA Tier 4 Interim emissions standards for construction equipment over 25 horsepower.  Maintain a list of all operating equipment in use on the project site for verification by the City of Cupertino Building Division official or his/her designee. The construction equipment list shall state the makes, models, and number of construction equipment on-site.  Ensure that all equipment shall be properly serviced and maintained in accordance with the manufacturer’s recommendations.
 Communicate with all sub-contractors in contracts and construction documents that all nonessential idling of construction equipment is restricted to 5 minutes or less in compliance with California Air Resources Board Rule 2449 and is responsible for ensuring that this requirement is met.

Mitigation Measure AQ-2 would reduce the project’s localized construction emissions, as shown in Table 2.

The results indicate that, with mitigation, cancer risks and annual PM

2.5 concentrations would be less than
BAAQMD’s significance thresholds for residential-based receptors. Therefore, the project would not expose off-site sensitive receptors to substantial concentration s of air pollutant emissions during construction and impacts would be less than significant with mitigation.

TABLE 2 CONSTRUCTION RISK SUMMARY – MITIGATED
Receptor
Cancer Risk
(per million)
Chronic
Hazards
PM2.5
(µg/m3)a
Maximum Exposed Receptor – Off-site Resident 4.9 0.011 0.05 Maximum Exposed Receptor – Senior Living Resident <0.001 <0.001 <0.001 BAAQMD Threshold 10 1.0 0.3
Exceeds Threshold? No No No
Risks incorporate Mitigation Measure AQ‐2, which requires all equipment of 25 horsepower or more be fitted with engines that meet the EPA’s Tier 4 Interim emissions standards.

Note: Cancer risk calculated using 2015 OEHHA HRA guidance.

385
CC 02-01-2022
385 of 756
Health Risk Assessment Background and Modeling Data Page 9

2. References
Bay Area Air Quality Management District. 2017. California Environmental Quality Act Air Quality Guidelines. ———. 2016. Planning Healthy Places. Dated May 2016.
———. 2012. Recommended Methods for Screening and Modeling Local Risks and Hazards. Version 3.0. Dated May 2012.
———. 2010. Screening Tables for Air Toxics Evaluation During Construction. Version 1.0. Dated May 2010.
———. 2009-2013. Meteorological Data Set for Metro Oakland International Airport.

California Air Pollution Control Officers Association (CAPCOA). 2016. California Emissions Estimator Model (CalEEMod). Version 2016.3.2. Prepared by: ENVIRON International Corporation and the California Air Districts.

California Air Resources Board (CARB). 2000. Risk Reduction Plan to Reduce Particulate Matter Emissions from Diesel-Fueled Engines and Vehicles.
———. 2020. Meteorological Files. https://ww2.arb.ca.gov/resources/documents/harp-aermod- meteorological-files
Office of Environmental Health Hazard Assessment (OEHHA). 2015. Air Toxics Hot Spots Program Guidance Manual for the Preparation of Health Risk Assessments. Dated February 2015.

United States Environmental Protection Agency (USEPA). 2011. Exposure Factors Handbook 2011 Edition (Final). EPA/600/R-09/052F, 2011.
______. 2005. Guideline on Air Quality Models (Revised). EPA-450/2-78-027R.

386
CC 02-01-2022
386 of 756
387
CC 02-01-2022
387 of 756
Health Risk Assessment Background and Modeling Data
Appendix A. Emission Rate Calculations

388
CC 02-01-2022
388 of 756
Health Risk Assessment Background and Modeling Data
Appendix B. Air Dispersion Model Output

389
CC 02-01-2022
389 of 756
Health Risk Assessment Background and Modeling Data
Appendix C. Construction Risk Calculations
390
CC 02-01-2022
390 of 756

PLACEWORKS
0 Scale (Feet)
500
Source: Google Earth Pro, 2020; PlaceWorks, 2020.

Project Site Maximum Exposed Receptor - Residential
Receptors - Residential
Truck Route
Figure 1
Site and Off-Site Receptor Locations
Maximum Exposed Receptor - Senior Living Resident
Receptors - Senior Living Resident
Long Oak LnLong Oak Ln
Spanish Oak CtSpanish Oak Ct
California Oak WyCalifornia Oak Wy
Majestic Oak WyMajestic Oak Wy
English Oak WyEnglish Oak Wy
Salem AveSalem Ave
Poppy DrPoppy Dr
Alpine DrAlpine Dr
Cupertino RdCupertino Rd
Anthony PlAnthony Pl
Silver Oak WySilver Oak Wy
N Foothill BlvdN Foothill Blvd
Stevens Creek BlvdStevens Creek Blvd
Hillcrest RdHillcrest Rd
Bellvue AveBellvue Ave
Janice AveJanice Ave
Dubon AveDubon Ave
Woodridge CtWoodridge Ct
Walnut Cir NWalnut Cir N
Medina LnMedina Ln
Rancho Ventura St
Rancho Ventura St
S Foothill BlvdS Foothill Blvd
Mira Vista RdMira Vista Rd
Palo Vista RdPalo Vista Rd
Casa PlCasa Pl
Ramona CtRamona Ct
Camino Vista DrCamino Vista Dr
Palo Vista AvePalo Vista Ave
Lockwood DrLockwood Dr
Lebanon DrLebanon Dr
McKlintlock LnMcKlintlock Ln
Amad
or Oak Ct
Amad
or Oak Ct
Silver Oak LnSilver Oak Ln
SwanOak LnSwanOak Ln
Residential
Residential
Residential
22690 STEVENS CREEK BOULEVARD CONSTRUCTION HEALTH RISK ASSESSMENT

CITY OF CUPERTINO
391
CC 02-01-2022
391 of 756
Health Risk Assessment Background and Modeling Data
Appendix A. Emission Rate Calculations

392
CC 02-01-2022
392 of 756
Construction Emissions - DPM and PM2.5
Input to Risk Tables
Average Daily Emissions and Emission Rates
Onsite Construction PM10 Exhaust Emissions1 Onsite Construction PM2.5 Exhaust Emissions2 Year
Average
Daily
Emissions
(lbs/day)
Average
Daily
Emissions
(lbs/hr)
Emission
Rate (g/s)
Average
Daily
Emissions
(lbs/day)
Average
Daily
Emissions
(lbs/hr)
Emission
Rate (g/s)
2022 0.42 5.26E-02 6.63E-03 0.40 5.00E-02 6.29E-03
Offsite Construction PM10 Exhaust Emissions1 Offsite Construction PM2.5 Exhaust Emissions2 Year
Average
Daily
Emissions
(lbs/day)
Hauling
Emissions
w/in 1,000ft
(lbs/day) 3
Emission
Rate (lbs/hr)
Emission
Rate (g/s)
Average
Daily
Emissions
(lbs/day)
Hauling
Emissions
w/in 1,000ft
(lbs/day) 3
Emission
Rate (lbs/hr)
Emission
Rate (g/s)
2022 1.38E-03 2.89E-05 3.61E-06 4.55E-07 1.38E-03 2.89E-05 3.61E-06 4.55E-07 Note: Emissions evenly distributed over 55 modeled volume sources.

Year Workdays Risk Scalar 5
Hauling Length (miles) 20 miles
Haul Length within 1,000 ft of Site (mile) 3 0.42 miles 2022 218 0.84 8 hours
1 DPM emissions taken as PM10 exhaust emissions from CalEEMod average daily emissions. 2 PM2.5 emissions taken as PM2.5 exhaust emissions from CalEEMod average daily emissions. 4 Work hours applied in By Hour/Day (HRDOW) variable emissions module in air dispersion model (see App B - Air Dispersion Model Output).

Hours per work day (7:00 AM to 4:00 PM, 1-
hour of breaks) 4
3 Emissions from CalEEMod offsite average daily emissions, which is based on proportioned haul truck trip distances, are adjusted to evaluate emissions from the 0.42-mile route within 1,000 of the project site.
5 Risk scalars determined for each year of construction to adjust receptor exposures to the exposure durations for each construction year (see App C - Risk Calculations). 393
CC 02-01-2022
393 of 756
Construction Emissions - DPM and PM2.5
Input to Risk Tables
With Mitigation - Tier 4 Interim Engines for Eq. > 25 hp Average Daily Emissions and Emission Rates: Mitigated Scenario Onsite Construction PM10 Exhaust Emissions1 Onsite Construction PM2.5 Exhaust Emissions2 Year
Average
Daily
Emissions
(lbs/day)
Average
Daily
Emissions
(lbs/hr)
Emission
Rate (g/s)
Average
Daily
Emissions
(lbs/day)
Average
Daily
Emissions
(lbs/hr)
Emission
Rate (g/s)
2022 0.03 4.36E-03 5.49E-04 0.03 4.36E-03 5.49E-04
Offsite Construction PM10 Exhaust Emissions1 Offsite Construction PM2.5 Exhaust Emissions2 Year
Average
Daily
Emissions
(lbs/day)
Hauling
Emissions
w/in 1,000ft
(lbs/day) 3
Emission
Rate (lbs/hr)
Emission
Rate (g/s)
Average
Daily
Emissions
(lbs/day)
Hauling
Emissions
w/in 1,000ft
(lbs/day) 3
Emission
Rate (lbs/hr)
Emission
Rate (g/s)
2022 1.38E-03 2.89E-05 3.61E-06 4.55E-07 1.38E-03 2.89E-05 3.61E-06 4.55E-07 Note: Emissions evenly distributed over 55 modeled volume sources.

395
CC 02-01-2022
395 of 756
*** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 1
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** MODEL SETUP OPTIONS SUMMARY ***
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

**Model Is Setup For Calculation of Average CONCentration Values.

-- DEPOSITION LOGIC --
**NO GAS DEPOSITION Data Provided.
**NO PARTICLE DEPOSITION Data Provided.
**Model Uses NO DRY DEPLETION. DRYDPLT = F
**Model Uses NO WET DEPLETION. WETDPLT = F

**Model Uses URBAN Dispersion Algorithm for the SBL for 56 Source(s), for Total of 1 Urban Area(s):

Urban Population = 1928000.0 ; Urban Roughness Length = 1.000 m

**Model Uses Regulatory DEFAULT Options:

1. Stack-tip Downwash.

2. Model Accounts for ELEVated Terrain Effects.

3. Use Calms Processing Routine.

4. Use Missing Data Processing Routine.

5. No Exponential Decay.

6. Urban Roughness Length of 1.0 Meter Assumed.

**Other Options Specified:

CCVR_Sub - Meteorological data includes CCVR substitutions TEMP_Sub - Meteorological data includes TEMP substitutions

**Model Accepts FLAGPOLE Receptor Heights.

**The User Specified a Pollutant Type of: OTHER

**Model Calculates PERIOD Averages Only

**This Run Includes: 56 Source(s); 2 Source Group(s); and 391 Receptor(s)

with: 0 POINT(s), including
0 POINTCAP(s) and 0 POINTHOR(s)
and: 55 VOLUME source(s)
and: 1 AREA type source(s)
and: 0 LINE source(s)
and: 0 RLINE/RLINEXT source(s)
and: 0 OPENPIT source(s)
and: 0 BUOYANT LINE source(s) with 0 line(s)

**Model Set To Continue RUNning After the Setup Testing.

Model Output
Unit Emission Rates (1 g/s)
396
CC 02-01-2022
396 of 756

**The AERMET Input Meteorological Data Version Date: 14134

**Output Options Selected:

Model Outputs Tables of PERIOD Averages by Receptor
Model Outputs External File(s) of High Values for Plotting (PLOTFILE Keyword) Model Outputs Separate Summary File of High Ranked Values (SUMMFILE Keyword)

**NOTE: The Following Flags May Appear Following CONC Values: c for Calm Hours m for Missing Hours
b for Both Calm and Missing Hours

**Misc. Inputs: Base Elev. for Pot. Temp. Profile (m MSL) = 11.90 ; Decay Coef. = 0.000 ; Rot. Angle = 0.0 Emission Units = GRAMS/SEC ; Emission Rate Unit Factor = 0.10000E+07 Output Units = MICROGRAMS/M**3

**Approximate Storage Requirements of Model = 3.6 MB of RAM.

**Input Runstream File: aermod.inp
**Output Print File: aermod.out

**Detailed Error/Message File: COCU18.err
**File for Summary of Results: COCU18.sum
Model Output
Unit Emission Rates (1 g/s)
397
CC 02-01-2022
397 of 756
*** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 2
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** VOLUME SOURCE DATA ***

NUMBER EMISSION RATE BASE RELEASE INIT. INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC) X Y ELEV. HEIGHT SY SZ SOURCE SCALAR VARY ID CATS. (METERS) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

L0000001 0 0.18182E-01 582491.5 4131335.0 114.4 4.15 5.67 3.26 YES HRDOW L0000002 0 0.18182E-01 582493.1 4131322.9 114.8 4.15 5.67 3.26 YES HRDOW L0000003 0 0.18182E-01 582494.6 4131310.8 115.2 4.15 5.67 3.26 YES HRDOW L0000004 0 0.18182E-01 582496.2 4131298.8 115.7 4.15 5.67 3.26 YES HRDOW L0000005 0 0.18182E-01 582497.8 4131286.7 116.1 4.15 5.67 3.26 YES HRDOW L0000006 0 0.18182E-01 582499.3 4131274.6 116.2 4.15 5.67 3.26 YES HRDOW L0000007 0 0.18182E-01 582500.9 4131262.5 116.4 4.15 5.67 3.26 YES HRDOW L0000008 0 0.18182E-01 582502.2 4131250.4 116.3 4.15 5.67 3.26 YES HRDOW L0000009 0 0.18182E-01 582503.6 4131238.2 116.0 4.15 5.67 3.26 YES HRDOW L0000010 0 0.18182E-01 582504.9 4131226.1 115.8 4.15 5.67 3.26 YES HRDOW L0000011 0 0.18182E-01 582506.2 4131214.0 115.7 4.15 5.67 3.26 YES HRDOW L0000012 0 0.18182E-01 582507.5 4131201.9 115.7 4.15 5.67 3.26 YES HRDOW L0000013 0 0.18182E-01 582508.7 4131189.8 115.8 4.15 5.67 3.26 YES HRDOW L0000014 0 0.18182E-01 582509.7 4131177.6 115.9 4.15 5.67 3.26 YES HRDOW L0000015 0 0.18182E-01 582510.6 4131165.4 115.9 4.15 5.67 3.26 YES HRDOW L0000016 0 0.18182E-01 582511.6 4131153.3 116.0 4.15 5.67 3.26 YES HRDOW L0000017 0 0.18182E-01 582512.5 4131141.1 116.1 4.15 5.67 3.26 YES HRDOW L0000018 0 0.18182E-01 582513.5 4131129.0 116.2 4.15 5.67 3.26 YES HRDOW L0000019 0 0.18182E-01 582514.4 4131116.8 116.3 4.15 5.67 3.26 YES HRDOW L0000020 0 0.18182E-01 582514.8 4131104.6 116.5 4.15 5.67 3.26 YES HRDOW L0000021 0 0.18182E-01 582515.2 4131092.4 116.6 4.15 5.67 3.26 YES HRDOW L0000022 0 0.18182E-01 582515.7 4131080.3 116.7 4.15 5.67 3.26 YES HRDOW L0000023 0 0.18182E-01 582516.1 4131068.1 116.8 4.15 5.67 3.26 YES HRDOW L0000024 0 0.18182E-01 582516.5 4131055.9 117.0 4.15 5.67 3.26 YES HRDOW L0000025 0 0.18182E-01 582517.0 4131043.7 117.2 4.15 5.67 3.26 YES HRDOW L0000026 0 0.18182E-01 582517.4 4131031.5 117.5 4.15 5.67 3.26 YES HRDOW L0000027 0 0.18182E-01 582517.8 4131019.3 117.8 4.15 5.67 3.26 YES HRDOW L0000028 0 0.18182E-01 582518.3 4131007.2 118.0 4.15 5.67 3.26 YES HRDOW L0000029
0 0.18182E-01 582518.7 4130995.0 118.1 4.15 5.67 3.26 YES HRDOW L0000030 0 0.18182E-01 582530.6 4130995.2 117.8 4.15 5.67 3.26 YES HRDOW L0000031 0 0.18182E-01 582542.8 4130995.8 117.8 4.15 5.67 3.26 YES HRDOW L0000032 0 0.18182E-01 582555.0 4130996.4 117.7 4.15 5.67 3.26 YES HRDOW L0000033 0 0.18182E-01 582567.1 4130996.9 117.8 4.15 5.67 3.26 YES HRDOW L0000034 0 0.18182E-01 582579.3 4130997.5 117.8 4.15 5.67 3.26 YES HRDOW L0000035 0 0.18182E-01 582591.5 4130998.0 118.1 4.15 5.67 3.26 YES HRDOW L0000036 0 0.18182E-01 582603.7 4130998.6 118.3 4.15 5.67 3.26 YES HRDOW L0000037 0 0.18182E-01 582615.8 4130999.2 118.5 4.15 5.67 3.26 YES HRDOW L0000038 0 0.18182E-01 582628.0 4130999.7 118.6 4.15 5.67 3.26 YES HRDOW Model Output
Unit Emission Rates (1 g/s)
398
CC 02-01-2022
398 of 756
L0000039 0 0.18182E-01 582640.2 4131000.3 118.7 4.15 5.67 3.26 YES HRDOW L0000040 0 0.18182E-01 582652.4 4131000.9 118.7 4.15 5.67 3.26 YES HRDOW *** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 3
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** VOLUME SOURCE DATA ***

L0000041 0 0.18182E-01 582664.6 4131001.4 118.6 4.15 5.67 3.26 YES HRDOW L0000042 0 0.18182E-01 582676.7 4131002.0 118.5 4.15 5.67 3.26 YES HRDOW L0000043 0 0.18182E-01 582688.9 4131001.9 118.6 4.15 5.67 3.26 YES HRDOW L0000044 0 0.18182E-01 582701.1 4131001.7 118.8 4.15 5.67 3.26 YES HRDOW L0000045 0 0.18182E-01 582713.3 4131001.5 119.0 4.15 5.67 3.26 YES HRDOW L0000046 0 0.18182E-01 582725.5 4131001.3 119.1 4.15 5.67 3.26 YES HRDOW L0000047 0 0.18182E-01 582737.7 4131001.1 119.3 4.15 5.67 3.26 YES HRDOW L0000048 0 0.18182E-01 582749.9 4131000.9 119.5 4.15 5.67 3.26 YES HRDOW L0000049 0 0.18182E-01 582762.1 4131000.7 119.6 4.15 5.67 3.26 YES HRDOW L0000050 0 0.18182E-01 582774.2 4131001.3 119.5 4.15 5.67 3.26 YES HRDOW L0000051 0 0.18182E-01 582786.3 4131003.2 119.5 4.15 5.67 3.26 YES HRDOW L0000052 0 0.18182E-01 582798.3 4131005.0 119.5 4.15 5.67 3.26 YES HRDOW L0000053 0 0.18182E-01 582810.4 4131006.9 119.5 4.15 5.67 3.26 YES HRDOW L0000054 0 0.18182E-01 582822.4 4131008.7 119.5 4.15 5.67 3.26 YES HRDOW L0000055 0 0.18182E-01 582834.5 4131010.6 119.5 4.15 5.67 3.26 YES HRDOW

*** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 4
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** AREAPOLY SOURCE DATA ***

NUMBER EMISSION RATE LOCATION OF AREA BASE RELEASE NUMBER INIT. URBAN EMISSION RATE SOURCE PART. (GRAMS/SEC X Y ELEV. HEIGHT OF VERTS. SZ SOURCE SCALAR VARY ID CATS. /METER**2) (METERS) (METERS) (METERS) (METERS) (METERS) BY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

1 0 0.32580E-03 582509.2 4130943.0 118.2 4.15 11

1.93 YES HRDOW
Model Output
Unit Emission Rates (1 g/s)
399
CC 02-01-2022
399 of 756
*** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 5
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** SOURCE IDs DEFINING SOURCE GROUPS ***

SRCGROUP ID SOURCE IDs ----------- ---------- ONSITE 1 ,

HAUL L0000001 , L0000002 , L0000003 , L0000004 , L0000005 , L0000006 , L0000007 , L0000008 ,

L0000009 , L0000010 , L0000011 , L0000012 , L0000013 , L0000014 , L0000015 , L0000016 ,

L0000017 , L0000018 , L0000019 , L0000020 , L0000021 , L0000022 , L0000023 , L0000024 ,

L0000025 , L0000026 , L0000027 , L0000028 , L0000029 , L0000030 , L0000031 , L0000032 ,

L0000033 , L0000034 , L0000035 , L0000036 , L0000037 , L0000038 , L0000039 , L0000040 ,

L0000041 , L0000042 , L0000043 , L0000044 , L0000045 , L0000046 , L0000047 , L0000048 ,

L0000049 , L0000050 , L0000051 , L0000052 , L0000053 , L0000054 , L0000055 ,

*** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 6
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** SOURCE IDs DEFINED AS URBAN SOURCES ***

URBAN ID URBAN POP SOURCE IDs -------- --------- ----------

1928000. 1 , L0000001 , L0000002 , L0000003 , L0000004 , L0000005 , L0000006 , L0000007 ,

L0000008 , L0000009 , L0000010 , L0000011 , L0000012 , L0000013 , L0000014 , L0000015 ,

L0000016 , L0000017 , L0000018 , L0000019 , L0000020 , L0000021 , L0000022 , L0000023 ,

L0000024 , L0000025 , L0000026 , L0000027 , L0000028 , L0000029 , L0000030 , L0000031 ,

L0000032 , L0000033 , L0000034 , L0000035 , L0000036 , L0000037 , L0000038 , L0000039 ,

L0000040 , L0000041 , L0000042 , L0000043 , L0000044 , L0000045 , L0000046 , L0000047 ,

L0000048 , L0000049 , L0000050 , L0000051 , L0000052 , L0000053 , L0000054 , L0000055 , Model Output
Unit Emission Rates (1 g/s)
400
CC 02-01-2022
400 of 756
*** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 7
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

* SOURCE EMISSION RATE SCALARS WHICH VARY DIURNALLY AND BY DAY OF WEEK (HRDOW) *

SOURCE ID = ALL SOURCES ; SOURCE TYPE = AREAPOLY and VOLUME:

HOUR SCALAR HOUR SCALAR HOUR SCALAR HOUR SCALAR HOUR SCALAR HOUR SCALAR HOUR SCALAR HOUR SCALAR - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - DAY OF WEEK = WEEKDAY
1 .0000E+00 2 .0000E+00 3 .0000E+00 4 .0000E+00 5 .0000E+00 6 .0000E+00 7 .0000E+00 8 .1000E+01 9 .1000E+01 10 .1000E+01 11 .1000E+01 12 .1000E+01 13 .0000E+00 14 .1000E+01 15 .1000E+01 16 .1000E+01 17 .0000E+00 18 .0000E+00 19 .0000E+00 20 .0000E+00 21 .0000E+00 22 .0000E+00 23 .0000E+00 24 .0000E+00 DAY OF WEEK = SATURDAY
1 .0000E+00 2 .0000E+00 3 .0000E+00 4 .0000E+00 5 .0000E+00 6 .0000E+00 7 .0000E+00 8 .0000E+00 9 .0000E+00 10 .0000E+00 11 .0000E+00 12 .0000E+00 13 .0000E+00 14 .0000E+00 15 .0000E+00 16 .0000E+00 17 .0000E+00 18 .0000E+00 19 .0000E+00 20 .0000E+00 21 .0000E+00 22 .0000E+00 23 .0000E+00 24 .0000E+00 DAY OF WEEK = SUNDAY
1 .0000E+00 2 .0000E+00 3 .0000E+00 4 .0000E+00 5 .0000E+00 6 .0000E+00 7 .0000E+00 8 .0000E+00 9 .0000E+00 10 .0000E+00 11 .0000E+00 12 .0000E+00 13 .0000E+00 14 .0000E+00 15 .0000E+00 16 .0000E+00 17 .0000E+00 18 .0000E+00 19 .0000E+00 20 .0000E+00 21 .0000E+00 22 .0000E+00 23 .0000E+00 24 .0000E+00 Model Output
Unit Emission Rates (1 g/s)
401
CC 02-01-2022
401 of 756
*** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 69
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** METEOROLOGICAL DAYS SELECTED FOR PROCESSING ***
(1=YES; 0=NO)

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

NOTE: METEOROLOGICAL DATA ACTUALLY PROCESSED WILL ALSO DEPEND ON WHAT IS INCLUDED IN THE DATA FILE.

*** UPPER BOUND OF FIRST THROUGH FIFTH WIND SPEED CATEGORIES *** (METERS/SEC)

1.54, 3.09, 5.14, 8.23, 10.80,
Model Output
Unit Emission Rates (1 g/s)
402
CC 02-01-2022
402 of 756
*** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 70
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** UP TO THE FIRST 24 HOURS OF METEOROLOGICAL DATA ***

Surface file: ..\MetData\745090.SFC Met Version: 14134 Profile file: ..\MetData\745090.PFL
Surface format: FREE
Profile format: FREE
Surface station no.: 23244 Upper air station no.: 23230 Name: UNKNOWN Name: OAKLAND/WSO_AP Year: 2009 Year: 2009

First 24 hours of scalar data
YR MO DY JDY HR H0 U* W* DT/DZ ZICNV ZIMCH M-O LEN Z0 BOWEN ALBEDO REF WS WD HT REF TA HT - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 09 01 01 1 01 -12.1 0.213 -9.000 -9.000 -999. 236. 72.6 0.09 0.54 1.00 2.86 1. 10.0 282.5 2.0 09 01 01 1 02 -14.9 0.261 -9.000 -9.000 -999. 321. 109.2 0.09 0.54 1.00 3.36 18. 10.0 282.0 2.0 09 01 01 1 03 -9.1 0.160 -9.000 -9.000 -999. 158. 40.7 0.09 0.54 1.00 2.36 24. 10.0 282.0 2.0 09 01 01 1 04 -999.0 -9.000 -9.000 -9.000 -999. -999. -99999.0 0.24 0.54 1.00 0.00 0. 10.0 281.4 2.0 09 01 01 1 05 -3.9 0.075 -9.000 -9.000 -999. 49. 9.8 0.09 0.54 1.00 1.76 23. 10.0 281.4 2.0 09 01 01 1 06 -9.1 0.159 -9.000 -9.000 -999. 153. 40.5 0.09 0.54 1.00 2.36 2. 10.0 280.9 2.0 09 01 01 1 07 -9.1 0.159 -9.000 -9.000 -999. 153. 40.5 0.09 0.54 1.00 2.36 15. 10.0 280.9 2.0 09 01 01 1 08 -4.7 0.084 -9.000 -9.000 -999. 61. 11.7 0.15 0.54 0.73 1.76 323. 10.0 280.9 2.0 09 01 01 1 09 -4.9 0.212 -9.000 -9.000 -999. 234. 179.0 0.15 0.54 0.38 2.36 357. 10.0 280.4 2.0 09 01 01 1 10 5.7 0.163 0.241 0.014 89. 159. -69.3 0.09 0.54 0.25 1.76 11. 10.0 280.9 2.0 09 01 01 1 11 12.2 -9.000 -9.000 -9.000 158. -999. -99999.0 0.24 0.54 0.21 0.00 0. 10.0 280.9 2.0 09 01 01 1 12 16.0 0.426 0.456 0.016 216. 668. -442.4 0.15 0.54 0.19 4.36 346. 10.0 281.4 2.0 09 01 01 1 13 16.6 0.236 0.493 0.015 263. 305. -71.8 0.36 0.54 0.19 1.76 253. 10.0 281.4 2.0 09 01 01 1 14 14.2 -9.000 -9.000 -9.000 297. -999. -99999.0 0.24 0.54 0.20 0.00 0. 10.0 282.0 2.0 09 01 01 1 15 44.9 -9.000 -9.000 -9.000 387.
-999. -99999.0 0.24 0.54 0.23 0.00 0. 10.0 283.8 2.0 09 01 01 1 16 13.2 -9.000 -9.000 -9.000 410. -999. -99999.0 0.24 0.54 0.31 0.00 0. 10.0 284.1 2.0 09 01 01 1 17 -12.3 0.130 -9.000 -9.000 -999. 112. 16.2 0.15 0.54 0.55 2.36 351. 10.0 282.1 2.0 09 01 01 1 18 -9.3 0.106 -9.000 -9.000 -999. 83. 11.6 0.36 0.54 1.00 1.76 297. 10.0 282.1 2.0 09 01 01 1 19 -999.0 -9.000 -9.000 -9.000 -999. -999. -99999.0 0.24 0.54 1.00 0.00 0. 10.0 281.1 2.0 09 01 01 1 20 -999.0 -9.000 -9.000 -9.000 -999. -999. -99999.0 0.24 0.54 1.00 0.00 0. 10.0 281.1 2.0 09 01 01 1 21 -999.0 -9.000 -9.000 -9.000 -999. -999. -99999.0 0.24 0.54 1.00 0.00 0. 10.0 281.1 2.0 09 01 01 1 22 -999.0 -9.000 -9.000 -9.000 -999. -999. -99999.0 0.24 0.54 1.00 0.00 0. 10.0 281.1 2.0 09 01 01 1 23 -999.0 -9.000 -9.000 -9.000 -999. -999. -99999.0 0.24 0.54 1.00 0.00 0. 10.0 281.1 2.0 09 01 01 1 24 -999.0 -9.000 -9.000 -9.000 -999. -999. -99999.0 0.24 0.54 1.00 0.00 0. 10.0 280.1 2.0

First hour of profile data
YR MO DY HR HEIGHT F WDIR WSPD AMB_TMP sigmaA sigmaW sigmaV 09 01 01 01 10.0 1 1. 2.86 282.6 99.0 -99.00 -99.00

F indicates top of profile (=1) or below (=0)
Model Output
Unit Emission Rates (1 g/s)
403
CC 02-01-2022
403 of 756
*** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 71
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** THE PERIOD ( 43872 HRS) AVERAGE CONCENTRATION VALUES FOR SOURCE GROUP: ONSITE *** INCLUDING SOURCE(S): 1 ,

*** DISCRETE CARTESIAN RECEPTOR POINTS ***

** CONC OF OTHER IN MICROGRAMS/M**3 **

X-COORD (M) Y-COORD (M) CONC X-COORD (M) Y-COORD (M) CONC - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 582111.53 4130697.09 0.05189 582151.53 4130697.09 0.07355 582191.53 4130697.09 0.11089 582231.53 4130697.09 0.17458 582271.53 4130697.09 0.28405 582311.53 4130697.09 0.47641 582351.53 4130697.09 0.81880 582391.53 4130697.09 1.40788 582431.53 4130697.09 2.30141 582471.53 4130697.09 3.32345 582511.53 4130697.09 3.99311 582551.53 4130697.09 3.94542 582591.53 4130697.09 3.26933 582631.53 4130697.09 2.38250 582671.53 4130697.09 1.60654 582711.53 4130697.09 1.06612 582751.53 4130697.09 0.72524 582791.53 4130697.09 0.50365 582831.53 4130697.09 0.36942 582111.53 4130727.09 0.04952 582151.53 4130727.09 0.06999 582191.53 4130727.09 0.10432 582231.53 4130727.09 0.16687 582271.53 4130727.09 0.28133 582311.53 4130727.09 0.48998 582351.53 4130727.09 0.88966 582391.53 4130727.09 1.63663 582431.53 4130727.09 2.82829 582471.53 4130727.09 4.21964 582511.53 4130727.09 5.07564 582551.53 4130727.09 4.82709 582591.53 4130727.09 3.75293 582631.53 4130727.09 2.55915 582671.53 4130727.09 1.63694 582711.53 4130727.09 1.04707 582751.53 4130727.09 0.69840 582791.53 4130727.09 0.48244 582831.53 4130727.09 0.35241 582111.53 4130757.09 0.04771 582151.53 4130757.09 0.06665 582191.53 4130757.09 0.09885 582231.53 4130757.09 0.15697 582271.53 4130757.09 0.27029 582311.53 4130757.09 0.50033 582351.53 4130757.09 0.96869 582391.53 4130757.09 1.91856 582431.53 4130757.09 3.55198 582471.53 4130757.09 5.52092 582511.53 4130757.09 6.61787 582551.53 4130757.09 5.96909 582591.53 4130757.09 4.28447 582631.53 4130757.09 2.68401 582671.53 4130757.09 1.61156 582711.53 4130757.09 0.99565 582751.53 4130757.09 0.66169 582791.53 4130757.09 0.45952 582831.53 4130757.09 0.33672 582111.53 4130787.09 0.04610 582151.53 4130787.09 0.06314 582191.53 4130787.09 0.09220 582231.53 4130787.09 0.14623 582271.53 4130787.09 0.25486 582311.53 4130787.09 0.49388 582351.53 4130787.09 1.02153 582391.53 4130787.09 2.24565 582431.53 4130787.09 4.57734 582471.53 4130787.09 7.49411 582511.53 4130787.09 8.89340 582551.53 4130787.09 7.44053 582591.53 4130787.09 4.77933 582631.53 4130787.09 2.71167 582671.53 4130787.09 1.53764 582711.53 4130787.09 0.93253 582751.53 4130787.09 0.62012

Model Output
Unit Emission Rates (1 g/s)
404
CC 02-01-2022
404 of 756
582791.53 4130787.09 0.43549 582831.53 4130787.09 0.32200 582111.53 4130817.09 0.04577 582151.53 4130817.09 0.06132 582191.53 4130817.09 0.08694 582231.53 4130817.09 0.13549 *** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 72
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** THE PERIOD ( 43872 HRS) AVERAGE CONCENTRATION VALUES FOR SOURCE GROUP: ONSITE *** INCLUDING SOURCE(S): 1 ,

*** DISCRETE CARTESIAN RECEPTOR POINTS ***

** CONC OF OTHER IN MICROGRAMS/M**3 **

X-COORD (M) Y-COORD (M) CONC X-COORD (M) Y-COORD (M) CONC - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 582271.53 4130817.09 0.23558 582311.53 4130817.09 0.46890 582351.53 4130817.09 1.05415 582391.53 4130817.09 2.63392 582431.53 4130817.09 6.04365 582471.53 4130817.09 10.62496 582511.53 4130817.09 12.42714 582551.53 4130817.09 9.31481 582591.53 4130817.09 5.18312 582631.53 4130817.09 2.63745 582671.53 4130817.09 1.42584 582711.53 4130817.09 0.86979 582751.53 4130817.09 0.57752 582791.53 4130817.09 0.41270 582831.53 4130817.09 0.30963 582111.53 4130847.09 0.04705 582151.53 4130847.09 0.06131 582191.53 4130847.09 0.08443 582231.53 4130847.09 0.12732 582271.53 4130847.09 0.21588 582311.53 4130847.09 0.43081 582351.53 4130847.09 1.02414 582391.53 4130847.09 3.01469 582431.53 4130847.09 8.23465 582471.53 4130847.09 16.01141 582511.53 4130847.09 18.27891 582551.53 4130847.09 11.55991 582591.53 4130847.09 5.34022 582631.53 4130847.09 2.44792 582671.53 4130847.09 1.29038 582711.53 4130847.09 0.79329 582751.53 4130847.09 0.53716 582791.53 4130847.09 0.39246 582831.53 4130847.09 0.29926 582111.53 4130877.09 0.05020 582151.53 4130877.09 0.06442 582191.53 4130877.09 0.08617 582231.53 4130877.09 0.12472 582271.53 4130877.09 0.20059 582311.53 4130877.09 0.38597 582351.53 4130877.09 0.94648 582391.53 4130877.09 3.35059 582431.53 4130877.09 11.79760 582471.53 4130877.09 26.20561 582511.53 4130877.09 28.81194 582551.53 4130877.09 13.59630 582591.53 4130877.09 4.96884 582631.53 4130877.09 2.14041 582671.53 4130877.09 1.14880 582711.53 4130877.09 0.72485 582751.53 4130877.09 0.50483 582791.53 4130877.09 0.37574 582831.53 4130877.09 0.29007 582111.53 4130907.09 0.05579 582151.53 4130907.09 0.07130 582191.53 4130907.09 0.09367 582231.53 4130907.09 0.13185 582271.53 4130907.09 0.20049 582311.53 4130907.09 0.36494 582351.53 4130907.09 0.83355 582391.53 4130907.09 3.37559 582431.53 4130907.09 18.27494 582471.53 4130907.09 47.59861 582511.53 4130907.09 49.39619 582551.53 4130907.09 13.60759 582591.53 4130907.09 4.07477

582631.53 4130907.09 1.80554 582671.53 4130907.09 1.02630 Model Output
Unit Emission Rates (1 g/s)
405
CC 02-01-2022
405 of 756
582711.53 4130907.09 0.67270 582751.53 4130907.09 0.47952 582791.53 4130907.09 0.36197 582831.53 4130907.09 0.28218 582111.53 4130937.09 0.06519 582151.53 4130937.09 0.08381 582191.53 4130937.09 0.11147 582231.53 4130937.09 0.15502 582351.53 4130937.09 0.79028 582391.53 4130937.09 2.78391 582431.53 4130937.09 34.50093 582471.53 4130937.09 100.09548 Residential MER *** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 73
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** THE PERIOD ( 43872 HRS) AVERAGE CONCENTRATION VALUES FOR SOURCE GROUP: ONSITE *** INCLUDING SOURCE(S): 1 ,

*** DISCRETE CARTESIAN RECEPTOR POINTS ***

** CONC OF OTHER IN MICROGRAMS/M**3 **

X-COORD (M) Y-COORD (M) CONC X-COORD (M) Y-COORD (M) CONC - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 582511.53 4130937.09 82.87908 582551.53 4130937.09 10.03204 582591.53 4130937.09 3.11132 582631.53 4130937.09 1.53411 582671.53 4130937.09 0.93244 582711.53 4130937.09 0.63124 582751.53 4130937.09 0.45748 582791.53 4130937.09 0.34873 582831.53 4130937.09 0.27389 582111.53 4130967.09 0.08051 582151.53 4130967.09 0.10516 582191.53 4130967.09 0.14347 582231.53 4130967.09 0.20338 582346.84 4130955.96 0.85895 582432.70 4130954.20 63.76270 582591.53 4130967.09 2.44773 582631.53 4130967.09 1.33224 582671.53 4130967.09 0.84815 582711.53 4130967.09 0.58825 582751.53 4130967.09 0.43211 582791.53 4130967.09 0.33208 582831.53 4130967.09 0.26319 582791.53 4130997.09 0.31055 582831.53 4130997.09 0.24894 582111.53 4131027.09 0.13618 582151.53 4131027.09 0.18690 582191.53 4131027.09 0.28764 582231.53 4131027.09 0.43190 582271.53 4131027.09 0.70203 582311.53 4131027.09 1.26051 582351.53 4131027.09 2.61908 582391.53 4131027.09 5.80612 582431.53 4131027.09 8.86529 582551.53 4131027.09 1.87406 582591.53 4131027.09 1.26219 582631.53 4131027.09 0.86566 582671.53 4131027.09 0.61821 582711.53 4131027.09 0.46207 582751.53 4131027.09 0.35649 582791.53 4131027.09 0.28340 582831.53 4131027.09 0.23097 582111.53 4131057.09 0.18496 582151.53 4131057.09 0.25401 582191.53 4131057.09 0.36403 582231.53 4131057.09 0.54775 582271.53 4131057.09 0.87426 582311.53 4131057.09 1.48729 582351.53 4131057.09 2.62758 582391.53 4131057.09 4.17865 582431.53 4131057.09 4.65023 582551.53 4131057.09 1.07905 582591.53 4131057.09 0.82318 582631.53 4131057.09 0.63545 582671.53 4131057.09 0.49180 582711.53 4131057.09 0.38700 582751.53 4131057.09 0.30892 582791.53 4131057.09 0.25148 582831.53 4131057.09 0.20952 582111.53 4131087.09 0.22281 582151.53 4131087.09 0.30569 582191.53 4131087.09 0.43406 582231.53 4131087.09 0.64013 Model Output
Unit Emission Rates (1 g/s)
406
CC 02-01-2022
406 of 756
582271.53 4131087.09 0.97725 582311.53 4131087.09 1.50923 582351.53 4131087.09 2.24413 582391.53 4131087.09 2.84264 582431.53 4131087.09 2.64266 582551.53 4131087.09 0.68446 582591.53 4131087.09 0.55723 582631.53 4131087.09 0.46111 582671.53 4131087.09 0.38214 582711.53 4131087.09 0.31667 582751.53 4131087.09 0.26128 582791.53 4131087.09 0.21848 582831.53 4131087.09 0.18631 582111.53 4131117.09 0.25874 582151.53 4131117.09 0.35121 582191.53 4131117.09 0.48792 582231.53 4131117.09 0.69163 582271.53 4131117.09 0.98900 *** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 74
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** THE PERIOD ( 43872 HRS) AVERAGE CONCENTRATION VALUES FOR SOURCE GROUP: ONSITE *** INCLUDING SOURCE(S): 1 ,

*** DISCRETE CARTESIAN RECEPTOR POINTS ***

** CONC OF OTHER IN MICROGRAMS/M**3 **

X-COORD (M) Y-COORD (M) CONC X-COORD (M) Y-COORD (M) CONC - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 582311.53 4131117.09 1.38063 582351.53 4131117.09 1.78228 582391.53 4131117.09 1.94068 582431.53 4131117.09 1.63066 582471.53 4131117.09 1.06596 582551.53 4131117.09 0.47546 582591.53 4131117.09 0.39693 582631.53 4131117.09 0.34144 582671.53 4131117.09 0.29512 582711.53 4131117.09 0.25477 582751.53 4131117.09 0.21816 582791.53 4131117.09 0.18724 582831.53 4131117.09 0.16369 582111.53 4131147.09 0.28920 582151.53 4131147.09 0.38420 582191.53 4131147.09 0.51711 582231.53 4131147.09 0.69943 582271.53 4131147.09 0.93330 582311.53 4131147.09 1.18975 582351.53 4131147.09 1.37674 582391.53 4131147.09 1.35359 582431.53 4131147.09 1.07509 582471.53 4131147.09 0.73475 582551.53 4131147.09 0.35128 Senior Living MER 582591.53 4131147.09 0.29613 582631.53 4131147.09 0.26066 582671.53 4131147.09 0.23117 582711.53 4131147.09 0.20513 582751.53 4131147.09 0.18133 582791.53 4131147.09 0.15919 582831.53 4131147.09 0.14238 582191.53 4131177.09 0.52245 582231.53 4131177.09 0.67294 582271.53 4131177.09 0.84153 582311.53 4131177.09 0.99177 582351.53 4131177.09 1.05745 582391.53 4131177.09 0.96851 582431.53 4131177.09 0.74691 582471.53 4131177.09 0.53006 582551.53 4131177.09 0.27049 582591.53 4131177.09 0.22966 582631.53 4131177.09 0.20512 582671.53 4131177.09 0.18481 582711.53 4131177.09 0.16720 582751.53 4131177.09 0.15120 582791.53 4131177.09 0.13508 582831.53 4131177.09 0.12319 582191.53 4131207.09 0.50886 582231.53 4131207.09 0.62482 582271.53 4131207.09 0.73702 582311.53 4131207.09 0.81443 582351.53 4131207.09 0.81501 582391.53 4131207.09 0.71201 582431.53 4131207.09 0.54578 582471.53 4131207.09 0.39239 582551.53 4131207.09 0.21524 Model Output
Unit Emission Rates (1 g/s) 407
CC 02-01-2022
407 of 756
582591.53 4131207.09 0.18420 582631.53 4131207.09 0.16575 582671.53 4131207.09 0.15099 582711.53 4131207.09 0.13822 582751.53 4131207.09 0.12710 582791.53 4131207.09 0.11511 582831.53 4131207.09 0.10693 582191.53 4131237.09 0.48155 582231.53 4131237.09 0.56590 582271.53 4131237.09 0.63460 582311.53 4131237.09 0.66528 582351.53 4131237.09 0.63328 582391.53 4131237.09 0.53726 582431.53 4131237.09 0.41256 582471.53 4131237.09 0.30158 582551.53 4131237.09 0.17565 582591.53 4131237.09 0.15125 582631.53 4131237.09 0.13683 582671.53 4131237.09 0.12562 582711.53 4131237.09 0.11591 582751.53 4131237.09 0.10769 582791.53 4131237.09 0.09844 582831.53 4131237.09 0.09265 582191.53 4131267.09 0.44593 Model Output
Unit Emission Rates (1 g/s)
408
CC 02-01-2022
408 of 756
*** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 75
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** THE PERIOD ( 43872 HRS) AVERAGE CONCENTRATION VALUES FOR SOURCE GROUP: ONSITE *** INCLUDING SOURCE(S): 1 ,

*** DISCRETE CARTESIAN RECEPTOR POINTS ***

** CONC OF OTHER IN MICROGRAMS/M**3 **

X-COORD (M) Y-COORD (M) CONC X-COORD (M) Y-COORD (M) CONC - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 582231.53 4131267.09 0.50378 582271.53 4131267.09 0.54105 582311.53 4131267.09 0.54341 582351.53 4131267.09 0.49812 582391.53 4131267.09 0.41455 582431.53 4131267.09 0.32036 582471.53 4131267.09 0.24115 582551.53 4131267.09 0.14620 582591.53 4131267.09 0.12649 582631.53 4131267.09 0.11479 582671.53 4131267.09 0.10613 582711.53 4131267.09 0.09861 582751.53 4131267.09 0.09206 582791.53 4131267.09 0.08453 582831.53 4131267.09 0.08071 582111.53 4131297.09 0.31074 582151.53 4131297.09 0.35967 582191.53 4131297.09 0.40678 582231.53 4131297.09 0.44331 582271.53 4131297.09 0.45907 582311.53 4131297.09 0.44568 582351.53 4131297.09 0.39689 582391.53 4131297.09 0.32638 582431.53 4131297.09 0.25717 582471.53 4131297.09 0.19865 582551.53 4131297.09 0.12362 582591.53 4131297.09 0.10719 582631.53 4131297.09 0.09763 582671.53 4131297.09 0.09079 582711.53 4131297.09 0.08490 582751.53 4131297.09 0.07920 582791.53 4131297.09 0.07345 582831.53 4131297.09 0.07071 582111.53 4131327.09 0.29669 582151.53 4131327.09 0.33396 582191.53 4131327.09 0.36628 582231.53 4131327.09 0.38743 582271.53 4131327.09 0.38913 582311.53 4131327.09 0.36796 582351.53 4131327.09 0.32176 582391.53 4131327.09 0.26334 582431.53 4131327.09 0.21073 582471.53 4131327.09 0.16437 582551.53 4131327.09 0.10582 582591.53 4131327.09 0.09219 582631.53 4131327.09 0.08416 582671.53 4131327.09 0.07857 582711.53 4131327.09 0.07399 582751.53 4131327.09 0.06897 582791.53 4131327.09 0.06523 582831.53 4131327.09 0.06141 582111.53 4131357.09 0.27967 582151.53 4131357.09 0.30744 582191.53 4131357.09 0.32741 582231.53 4131357.09 0.33693 582271.53 4131357.09 0.32985 582311.53 4131357.09 0.30547 582351.53 4131357.09 0.26400 582391.53 4131357.09 0.21569 582431.53 4131357.09 0.17357 582471.53 4131357.09 0.13805 582511.53 4131357.09 0.11018 582551.53 4131357.09 0.09154 582591.53 4131357.09 0.08018 582631.53 4131357.09 0.07333 582671.53 4131357.09 0.06868 582711.53 4131357.09 0.06491 582751.53 4131357.09 0.06080 582791.53 4131357.09 0.05661 582831.53 4131357.09 0.05563 582397.42 4130968.19 3.87683

Model Output
Unit Emission Rates (1 g/s)
409
CC 02-01-2022
409 of 756
*** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 76
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** THE PERIOD ( 43872 HRS) AVERAGE CONCENTRATION VALUES FOR SOURCE GROUP: HAUL *** INCLUDING SOURCE(S): L0000001 , L0000002 , L0000003 , L0000004 , L0000005 , L0000006 , L0000007 , L0000008 , L0000009 , L0000010 , L0000011 , L0000012 , L0000013 , L0000014 , L0000015 , L0000016 , L0000017 , L0000018 , L0000019 , L0000020 , L0000021 , L0000022 , L0000023 , L0000024 , L0000025 , L0000026 , L0000027 , L0000028 , . . . ,

*** DISCRETE CARTESIAN RECEPTOR POINTS ***

** CONC OF OTHER IN MICROGRAMS/M**3 **

X-COORD (M) Y-COORD (M) CONC X-COORD (M) Y-COORD (M) CONC - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 582111.53 4130697.09 0.05167 582151.53 4130697.09 0.06331 582191.53 4130697.09 0.07974 582231.53 4130697.09 0.10132 582271.53 4130697.09 0.13072 582311.53 4130697.09 0.17310 582351.53 4130697.09 0.23498 582391.53 4130697.09 0.32612 582431.53 4130697.09 0.46467 582471.53 4130697.09 0.66271 582511.53 4130697.09 0.91001 582551.53 4130697.09 1.16888 582591.53 4130697.09 1.38560 582631.53 4130697.09 1.51096 582671.53 4130697.09 1.54037 582711.53 4130697.09 1.49919 582751.53 4130697.09 1.41292 582791.53 4130697.09 1.28713 582831.53 4130697.09 1.13567 582111.53 4130727.09 0.05304 582151.53 4130727.09 0.06530 582191.53 4130727.09 0.08140 582231.53 4130727.09 0.10448 582271.53 4130727.09 0.13651 582311.53 4130727.09 0.18076 582351.53 4130727.09 0.24873 582391.53 4130727.09 0.35357 582431.53 4130727.09 0.51553 582471.53 4130727.09 0.75512 582511.53 4130727.09 1.06432 582551.53 4130727.09 1.38424 582591.53 4130727.09 1.63707 582631.53 4130727.09 1.76723 582671.53 4130727.09 1.77899 582711.53 4130727.09 1.71214 582751.53 4130727.09 1.60006 582791.53 4130727.09 1.44895 582831.53 4130727.09 1.26482 582111.53 4130757.09 0.05503 582151.53 4130757.09 0.06765 582191.53 4130757.09 0.08473 582231.53 4130757.09 0.10774 582271.53 4130757.09 0.14117 582311.53 4130757.09 0.19170 582351.53 4130757.09 0.26672 582391.53 4130757.09 0.38865 582431.53 4130757.09 0.57920 582471.53 4130757.09 0.87133 582511.53 4130757.09 1.26118 582551.53 4130757.09 1.66597 582591.53 4130757.09 1.96289 582631.53 4130757.09 2.08739 582671.53 4130757.09 2.06739 582711.53 4130757.09 1.96458 582751.53 4130757.09 1.82865 582791.53 4130757.09 1.64930 582831.53 4130757.09 1.42469 582111.53 4130787.09 0.05636 582151.53 4130787.09 0.06905 582191.53 4130787.09 0.08659 582231.53 4130787.09 0.11153 582271.53 4130787.09 0.14709 582311.53 4130787.09 0.20189 582351.53 4130787.09 0.28329 582391.53 4130787.09 0.42628
582431.53 4130787.09 0.65277
582471.53 4130787.09 1.01510 582511.53 4130787.09 1.51837 Model Output
Unit Emission Rates (1 g/s)
410
CC 02-01-2022
410 of 756
582551.53 4130787.09 2.03749 582591.53 4130787.09 2.38798 582631.53 4130787.09 2.49246 582671.53 4130787.09 2.42283 582711.53 4130787.09 2.27891 582751.53 4130787.09 2.11582 582791.53 4130787.09 1.90475 582831.53 4130787.09 1.62696 582111.53 4130817.09 0.05820 582151.53 4130817.09 0.07145 582191.53 4130817.09 0.08888 582231.53 4130817.09 0.11539 *** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 77
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** DISCRETE CARTESIAN RECEPTOR POINTS ***

** CONC OF OTHER IN MICROGRAMS/M**3 **

X-COORD (M) Y-COORD (M) CONC X-COORD (M) Y-COORD (M) CONC - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 582271.53 4130817.09 0.15371 582311.53 4130817.09 0.21388 582351.53 4130817.09 0.30388 582391.53 4130817.09 0.46589 582431.53 4130817.09 0.73654 582471.53 4130817.09 1.19003 582511.53 4130817.09 1.86731 582551.53 4130817.09 2.55825 582591.53 4130817.09 2.96581 582631.53 4130817.09 3.01828 582671.53 4130817.09 2.87423 582711.53 4130817.09 2.69283 582751.53 4130817.09 2.49136 582791.53 4130817.09 2.24369 582831.53 4130817.09 1.89265 582111.53 4130847.09 0.06055 582151.53 4130847.09 0.07381 582191.53 4130847.09 0.09200 582231.53 4130847.09 0.11993 582271.53 4130847.09 0.16126 582311.53 4130847.09 0.22684 582351.53 4130847.09 0.31988 582391.53 4130847.09 0.50944 582431.53 4130847.09 0.82585 582471.53 4130847.09 1.41254 582511.53 4130847.09 2.36058 582551.53 4130847.09 3.31987 582591.53 4130847.09 3.77196 582631.53 4130847.09 3.71822 582671.53 4130847.09 3.46970 582711.53 4130847.09 3.23395 582751.53 4130847.09 3.00444 582791.53 4130847.09 2.71420 582831.53 4130847.09 2.25416 582111.53 4130877.09 0.06311 582151.53 4130877.09 0.07722 582191.53 4130877.09 0.09606 582231.53 4130877.09 0.12535 582271.53 4130877.09 0.17059 582311.53 4130877.09 0.24370 582351.53 4130877.09 0.34594 582391.53 4130877.09 0.55532 582431.53 4130877.09 0.92945 582471.53 4130877.09 1.69634 582511.53 4130877.09 3.09613 582551.53 4130877.09 4.49736 582591.53 4130877.09 4.93492 582631.53 4130877.09 4.68033 582671.53 4130877.09 4.29814 582711.53 4130877.09 4.00340 582751.53 4130877.09 3.75841 582791.53 4130877.09 3.40977

582831.53 4130877.09 2.77396 582111.53 4130907.09 0.06602 582151.53 4130907.09 0.08090 582191.53 4130907.09 0.10022 Model Output
Unit Emission Rates (1 g/s)
411
CC 02-01-2022
411 of 756
582231.53 4130907.09 0.13144 582271.53 4130907.09 0.17923 582311.53 4130907.09 0.25980 582351.53 4130907.09 0.37613 582391.53 4130907.09 0.59813 582431.53 4130907.09 1.03941 582471.53 4130907.09 2.04509 582511.53 4130907.09 4.28167 582551.53 4130907.09 6.48070 582591.53 4130907.09 6.69201 582631.53 4130907.09 6.09257 582671.53 4130907.09 5.55213 582711.53 4130907.09 5.21053 582751.53 4130907.09 4.95637 582791.53 4130907.09 4.52873 582831.53 4130907.09 3.58090 582111.53 4130937.09 0.06958 582151.53 4130937.09 0.08499 582191.53 4130937.09 0.10663 582231.53 4130937.09 0.13806 582351.53 4130937.09 0.40978 582391.53 4130937.09 0.64673 582431.53 4130937.09 1.16261 582471.53 4130937.09 2.46913 Residential MER *** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 78
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** DISCRETE CARTESIAN RECEPTOR POINTS ***

** CONC OF OTHER IN MICROGRAMS/M**3 **

X-COORD (M) Y-COORD (M) CONC X-COORD (M) Y-COORD (M) CONC - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 582511.53 4130937.09 6.46338 582551.53 4130937.09 10.17475 582591.53 4130937.09 9.51216 582631.53 4130937.09 8.37963 582671.53 4130937.09 7.67943 582711.53 4130937.09 7.31784 582751.53 4130937.09 7.08066 582791.53 4130937.09 6.54256 582831.53 4130937.09 4.97111 582111.53 4130967.09 0.07375 582151.53 4130967.09 0.08980 582191.53 4130967.09 0.11471 582231.53 4130967.09 0.14728 582346.84 4130955.96 0.40835 582432.70 4130954.20 1.27035 582591.53 4130967.09 14.50955 582631.53 4130967.09 12.61346 582671.53 4130967.09 11.79222 582711.53 4130967.09 11.50556 582751.53 4130967.09 11.30374 582791.53 4130967.09 10.50606 582831.53 4130967.09 7.71376 582791.53 4130997.09 5.97759 582831.53 4130997.09 13.90706 582111.53 4131027.09 0.08778 582151.53 4131027.09 0.10781 582191.53 4131027.09 0.13747 582231.53 4131027.09 0.17737 582271.53 4131027.09 0.24245 582311.53 4131027.09 0.33929 582351.53 4131027.09 0.52439 582391.53 4131027.09 0.88209 582431.53 4131027.09 1.71829 582551.53 4131027.09 13.06873 582591.53 4131027.09 8.64230 582631.53 4131027.09 7.33676 582671.53 4131027.09 6.65000 582711.53 4131027.09 6.21801 582751.53 4131027.09 5.69418 582791.53 4131027.09 5.61049 582831.53 4131027.09 4.53402 582111.53 4131057.09 0.09609 582151.53 4131057.09 0.11940 582191.53 4131057.09 0.15098 Model Output
Unit Emission Rates (1 g/s)
412
CC 02-01-2022
412 of 756
582231.53 4131057.09 0.19588 582271.53 4131057.09 0.26270 582311.53 4131057.09 0.37166 582351.53 4131057.09 0.57967 582391.53 4131057.09 0.97790 582431.53 4131057.09 1.95677 582551.53 4131057.09 11.08283 582591.53 4131057.09 5.87362 582631.53 4131057.09 4.29355 582671.53 4131057.09 3.63376 582711.53 4131057.09 3.22691 582751.53 4131057.09 2.83303 582791.53 4131057.09 2.39781 582831.53 4131057.09 1.69674 582111.53 4131087.09 0.10460 582151.53 4131087.09 0.12928 582191.53 4131087.09 0.16358 582231.53 4131087.09 0.21530 582271.53 4131087.09 0.29750 582311.53 4131087.09 0.41570 582351.53 4131087.09 0.63543 582391.53 4131087.09 1.07086 582431.53 4131087.09 2.09843 582551.53 4131087.09 10.03954 582591.53 4131087.09 4.74800 582631.53 4131087.09 3.12262 582671.53 4131087.09 2.43297 582711.53 4131087.09 2.05446 582751.53 4131087.09 1.72927 582791.53 4131087.09 1.34769 582831.53 4131087.09 0.98257 582111.53 4131117.09 0.11462 582151.53 4131117.09 0.14405 582191.53 4131117.09 0.18379 582231.53 4131117.09 0.24142 582271.53 4131117.09 0.33054 *** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 79
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** DISCRETE CARTESIAN RECEPTOR POINTS ***

** CONC OF OTHER IN MICROGRAMS/M**3 **

X-COORD (M) Y-COORD (M) CONC X-COORD (M) Y-COORD (M) CONC - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 582311.53 4131117.09 0.46162 582351.53 4131117.09 0.69205 582391.53 4131117.09 1.14711 582431.53 4131117.09 2.17961 582471.53 4131117.09 5.25086 582551.53 4131117.09 9.05604 582591.53 4131117.09 4.03365 582631.53 4131117.09 2.48101 582671.53 4131117.09 1.81692 582711.53 4131117.09 1.46229 582751.53 4131117.09 1.19176 582791.53 4131117.09 0.90705 582831.53 4131117.09 0.70126 582111.53 4131147.09 0.12817 582151.53 4131147.09 0.15812 582191.53 4131147.09 0.19975 582231.53 4131147.09 0.26104 582271.53 4131147.09 0.35304 582311.53 4131147.09 0.49772 582351.53 4131147.09 0.73985 582391.53 4131147.09 1.19780 582431.53 4131147.09 2.18580 582471.53 4131147.09 5.54534 582551.53 4131147.09 8.07810 Senior Living MER 582591.53 4131147.09 3.47273 582631.53 4131147.09 2.03535 582671.53 4131147.09 1.43406 582711.53 4131147.09 1.11463 582751.53 4131147.09 0.88494 582791.53 4131147.09 0.67626 582831.53 4131147.09 0.53997 582191.53 4131177.09 0.21200 Model Output
Unit Emission Rates (1 g/s) 413
CC 02-01-2022
413 of 756
582231.53 4131177.09 0.27632 582271.53 4131177.09 0.37353 582311.53 4131177.09 0.52444 582351.53 4131177.09 0.76845 582391.53 4131177.09 1.20335 582431.53 4131177.09 2.12790 582471.53 4131177.09 5.82646 582551.53 4131177.09 7.10314 582591.53 4131177.09 2.93618 582631.53 4131177.09 1.68132 582671.53 4131177.09 1.16194 582711.53 4131177.09 0.88512 582751.53 4131177.09 0.69286 582791.53 4131177.09 0.53429 582831.53 4131177.09 0.43484 582191.53 4131207.09 0.22392 582231.53 4131207.09 0.29001 582271.53 4131207.09 0.38993 582311.53 4131207.09 0.53967 582351.53 4131207.09 0.77476 582391.53 4131207.09 1.17754 582431.53 4131207.09 2.10803 582471.53 4131207.09 5.82456 582551.53 4131207.09 5.98920 582591.53 4131207.09 2.43515 582631.53 4131207.09 1.38644 582671.53 4131207.09 0.95496 582711.53 4131207.09 0.72292 582751.53 4131207.09 0.56383 582791.53 4131207.09 0.43992 582831.53 4131207.09 0.36410 582191.53 4131237.09 0.23462 582231.53 4131237.09 0.30005 582271.53 4131237.09 0.39991 582311.53 4131237.09 0.54588 582351.53 4131237.09 0.76509 582391.53 4131237.09 1.14414 582431.53 4131237.09 2.05135 582471.53 4131237.09 5.81887 582551.53 4131237.09 4.82430 582591.53 4131237.09 1.96034 582631.53 4131237.09 1.13834 582671.53 4131237.09 0.79269 582711.53 4131237.09 0.60175 582751.53 4131237.09 0.46952 582791.53 4131237.09 0.36976 582831.53 4131237.09 0.31102 582191.53 4131267.09 0.24272 *** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 80
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** DISCRETE CARTESIAN RECEPTOR POINTS ***

** CONC OF OTHER IN MICROGRAMS/M**3 **

X-COORD (M) Y-COORD (M) CONC X-COORD (M) Y-COORD (M) CONC - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 582231.53 4131267.09 0.30747 582271.53 4131267.09 0.40504 582311.53 4131267.09 0.54478 582351.53 4131267.09 0.74653 582391.53 4131267.09 1.10679 582431.53 4131267.09 1.93989 582471.53 4131267.09 5.84643 582551.53 4131267.09 3.62973 582591.53 4131267.09 1.53456 582631.53 4131267.09 0.93176 582671.53 4131267.09 0.66246 582711.53 4131267.09 0.50707 582751.53 4131267.09 0.39549 582791.53 4131267.09 0.31736 582831.53 4131267.09 0.26953 582111.53 4131297.09 0.16431 582151.53 4131297.09 0.20121 582191.53 4131297.09 0.24862

582231.53 4131297.09 0.31327 582271.53 4131297.09 0.40640 Model Output
Unit Emission Rates (1 g/s)
414
CC 02-01-2022
414 of 756
582311.53 4131297.09 0.53806 582351.53 4131297.09 0.72082 582391.53 4131297.09 1.05697 582431.53 4131297.09 1.82672 582471.53 4131297.09 5.69981 582551.53 4131297.09 2.50871 582591.53 4131297.09 1.17928 582631.53 4131297.09 0.75941 582671.53 4131297.09 0.55493 582711.53 4131297.09 0.43030 582751.53 4131297.09 0.33540 582791.53 4131297.09 0.27293 582831.53 4131297.09 0.23343 582111.53 4131327.09 0.16747 582151.53 4131327.09 0.20535 582191.53 4131327.09 0.25367 582231.53 4131327.09 0.31494 582271.53 4131327.09 0.40264 582311.53 4131327.09 0.52522 582351.53 4131327.09 0.69299 582391.53 4131327.09 1.00594 582431.53 4131327.09 1.69329 582471.53 4131327.09 4.85240 582551.53 4131327.09 1.66482 582591.53 4131327.09 0.90533 582631.53 4131327.09 0.61717 582671.53 4131327.09 0.46389 582711.53 4131327.09 0.36528 582751.53 4131327.09 0.28576 582791.53 4131327.09 0.23081 582831.53 4131327.09 0.20298 582111.53 4131357.09 0.16775 582151.53 4131357.09 0.20613 582191.53 4131357.09 0.25454 582231.53 4131357.09 0.31391 582271.53 4131357.09 0.39478 582311.53 4131357.09 0.50711 582351.53 4131357.09 0.65401 582391.53 4131357.09 0.92886 582431.53 4131357.09 1.41802 582471.53 4131357.09 2.82995 582511.53 4131357.09 2.11478 582551.53 4131357.09 1.08243 582591.53 4131357.09 0.68512 582631.53 4131357.09 0.49688 582671.53 4131357.09 0.38623 582711.53 4131357.09 0.31095 582751.53 4131357.09 0.24654 582791.53 4131357.09 0.19212 582831.53 4131357.09 0.17279 582397.42 4130968.19 0.77674
Model Output
Unit Emission Rates (1 g/s)
415
CC 02-01-2022
415 of 756
*** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 81
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** THE SUMMARY OF MAXIMUM PERIOD ( 43872 HRS) RESULTS ***

** CONC OF OTHER IN MICROGRAMS/M**3 **

NETWORK

GROUP ID AVERAGE CONC RECEPTOR (XR, YR, ZELEV, ZHILL, ZFLAG) OF TYPE GRID-ID - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Residential MER
ONSITE 1ST HIGHEST VALUE IS 100.09548 AT ( 582471.53, 4130937.09, 119.33, 254.10, 1.50) DC 2ND HIGHEST VALUE IS 82.87908 AT ( 582511.53, 4130937.09, 118.32, 254.10, 1.50) DC 3RD HIGHEST VALUE IS 63.76270 AT ( 582432.70, 4130954.20, 119.91, 254.10, 1.50) DC 4TH HIGHEST VALUE IS 49.39619 AT ( 582511.53, 4130907.09, 118.67, 254.10, 1.50) DC 5TH HIGHEST VALUE IS 47.59861 AT ( 582471.53, 4130907.09, 119.44, 254.10, 1.50) DC 6TH HIGHEST VALUE IS 34.50093 AT ( 582431.53, 4130937.09, 120.06, 254.10, 1.50) DC 7TH HIGHEST VALUE IS 28.81194 AT ( 582511.53, 4130877.09, 118.77, 254.10, 1.50) DC 8TH HIGHEST VALUE IS 26.20561 AT ( 582471.53, 4130877.09, 119.56, 254.10, 1.50) DC 9TH HIGHEST VALUE IS 18.27891 AT ( 582511.53, 4130847.09, 119.02, 254.10, 1.50) DC 10TH HIGHEST VALUE IS 18.27494 AT ( 582431.53, 4130907.09, 120.13, 254.10, 1.50) DC

HAUL 1ST HIGHEST VALUE IS 14.50955 AT ( 582591.53, 4130967.09, 118.21, 254.10, 1.50) DC 2ND HIGHEST VALUE IS 13.90706 AT ( 582831.53, 4130997.09, 119.67, 119.67, 1.50) DC 3RD HIGHEST VALUE IS 13.06873 AT ( 582551.53, 4131027.09, 117.53, 254.10, 1.50) DC 4TH HIGHEST VALUE IS 12.61346 AT ( 582631.53, 4130967.09, 119.30, 254.10, 1.50) DC 5TH HIGHEST VALUE IS 11.79222 AT ( 582671.53, 4130967.09, 119.16, 252.84, 1.50) DC 6TH HIGHEST VALUE IS 11.50556 AT ( 582711.53, 4130967.09, 119.28, 119.28, 1.50) DC 7TH HIGHEST VALUE IS 11.30374 AT ( 582751.53, 4130967.09, 119.72, 119.72, 1.50) DC 8TH HIGHEST VALUE IS 11.08283 AT ( 582551.53, 4131057.09, 116.80, 254.10, 1.50) DC 9TH HIGHEST VALUE IS 10.50606 AT ( 582791.53, 4130967.09, 119.60, 119.60, 1.50) DC 10TH HIGHEST VALUE IS 10.17475 AT ( 582551.53, 4130937.09, 118.24, 254.10, 1.50) DC

*** RECEPTOR TYPES: GC = GRIDCART
GP = GRIDPOLR
DC = DISCCART
DP = DISCPOLR
Model Output
Unit Emission Rates (1 g/s)
416
CC 02-01-2022
416 of 756
*** AERMOD - VERSION 19191 *** *** 22690 Stevens Creek Blvd, Cupertino *** 07/21/20 *** AERMET - VERSION 14134 *** *** Construction HRA, Residential Receptors *** 09:29:47 PAGE 82
*** MODELOPTs: RegDFAULT CONC ELEV FLGPOL URBAN

*** Message Summary : AERMOD Model Execution ***

--------- Summary of Total Messages --------

A Total of 0 Fatal Error Message(s)
A Total of 0 Warning Message(s)
A Total of 15496 Informational Message(s)

A Total of 43872 Hours Were Processed

A Total of 14061 Calm Hours Identified

A Total of 1435 Missing Hours Identified ( 3.27 Percent)

******** FATAL ERROR MESSAGES ********
*** NONE ***

******** WARNING MESSAGES ********
*** NONE ***

************************************
*** AERMOD Finishes Successfully ***
************************************

Model Output
Unit Emission Rates (1 g/s)
417
CC 02-01-2022
417 of 756
Health Risk Assessment Background and Modeling Data
Appendix C. Construction Risk Calculations
418
CC 02-01-2022
418 of 756
Table C1
Residential MER Concentrations for Risk Calculations
Contaminant Model Emission Rates 2 MER Total MER Conc.

Output 1 Conc. Annual Average
(µg/m3) (g/s) (µg/m3)( µg/m3)
( a ) ( c ) ( d ) ( e ) ( f )
Residential Receptors - Unmitigated
DPM 2022 On-Site Emissions 100.1 6.63E-03 6.64E-01 6.64E-01 Truck Route 2.47 4.55E-07 1.12E-06
Total DPM concentrations used for Cancer Risk and Chronic Hazard calculations 2022 On-Site Emissions 100.1 6.29E-03 6.30E-01 6.30E-01 Truck Route 2.47 4.55E-07 1.12E-06
Maximum Annual PM2.5 Concentration 0.63
Residential Receptors - Mitigated Run: Tier 4 Interim Engines for eq. > 25 HP DPM 2022 On-Site Emissions 100.1 5.49E-04 5.50E-02 5.50E-02 Truck Route 2.47 4.55E-07 1.12E-06
Total DPM concentrations used for Cancer Risk and Chronic Hazard calculations 2022 On-Site Emissions 100.1 5.49E-04 5.50E-02 5.50E-02 Truck Route 2.47 4.55E-07 1.12E-06
Maximum Annual PM2.5 Concentration 0.05
Maximum Exposed Receptor (MER) UTM coordinates: 582471.53E, 4130937.09N 1 Model Output at the MER based on unit emission rates for sources (1 g/s). 2 Emission Rates from Emission Rate Calculations (Appendix A - Construction Emissions).

Source
( b )
PM2.5
PM2.5
419
CC 02-01-2022
419 of 756
Table C2
Residential MER Health Risk Calculations
MER Weight Contaminant Total Cancer
Risk
Conc. Fraction URF CPF 3rd Trimester 0 < 2 years 3rd Trimester 0 < 2 years REL RESP (µg/m3) (µg/m3)-1 (mg/kg/day)-1 (mg/kg-day) (mg/kg-day) per million per million per million (µg/m3) ( b ) ( c ) ( d ) ( e ) ( f ) ( g ) ( h ) ( j ) ( k ) ( m ) ( n ) ( o ) Residential Receptors - Unmitigated
2022 6.64E-01 1.00E+00 DPM 3.0E-04 1.1E+00 2.30E-04 6.94E-04 7.32E+00 5.20E+01 59.4 5.0E+00 1.33E-01 Total 59.4 0.133
Residential Receptors - Mitigated Run: Tier 4 Interim Engines for eq. > 25 HP 2022 5.50E-02 1.00E+00 DPM 3.0E-04 1.1E+00 1.90E-05 5.74E-05 6.06E-01 4.31E+00 4.9 5.0E+00 1.10E-02 Total 4.9 0.011
Maximum Exposed Receptor (MER) UTM coordinates: 582471.53E, 4130937.09N OEHHA age bin 3rd Trimester 0 < 2 years
exposure year(s) 2022 2022
Dose Exposure Factors: exposure frequency (days/year) 350 350 inhalation rate (L/kg-day) 1 361 1090
inhalation absorption factor 11
conversion factor (mg/µg; m3/L) 1.0E-06 1.0E-06
Risk Calculation Factors: age sensitivity factor 10 10
averaging time (years) 70 70
per million 1.0E+06 1.0E+06
fraction of time at home 0.85 0.85
exposure durations per age bin
Construction Year Risk Scalar 2 3rd Trimester 0 < 2 years 2022 0.84 0.25 0.59
Total 0.84 0.25 0.59
1 Inhalation rate taken as the 95th percentile breathing rates (OEHHA, 2015). 2 Risk scalar determined for each year of construction to adjust receptor exposures to the exposure durations for each construction year (see App A - Construction Emissions). 3 Chronic Hazards for DPM using the chronic reference exposure level (REL) for the Respiratory Toxicological Endpoint.

Chronic Hazards 3
( a )
Source
On & Off-Site Emissions
On & Off-Site Emissions
Carcinogenic Risks
(by age bin)Dose (by age bin)
exposure durations (year)
420
CC 02-01-2022
420 of 756
Table C3
Senior Living MER Concentrations for Risk Calculations
Contaminant Model Emission Rates 2 MER Total MER Conc.

Output 1 Conc. Annual Average
(µg/m3) (g/s) (µg/m3)( µg/m3)
( a ) ( c ) ( d ) ( e ) ( f )
Senior Living Receptors - Unmitigated
DPM 2022 On-Site Emissions 0.35 6.63E-03 2.33E-03 2.33E-03 Truck Route 8.08 4.55E-07 3.68E-06
Total DPM concentrations used for Cancer Risk and Chronic Hazard calculations PM25 2022 On-Site Emissions 0.35 6.29E-03 2.21E-03 2.21E-03 Truck Route 8.08 4.55E-07 3.68E-06
Maximum Annual PM2.5 Concentration 2.2E-03
Senior Living Receptors - Mitigated Run: Tier 4 Interim Engines for eq. > 50 HP DPM 2022 On-Site Emissions 0.35 5.49E-04 1.92E-04 1.96E-04 Truck Route 8.08 4.55E-07 3.68E-06
Total DPM concentrations used for Cancer Risk and Chronic Hazard calculations 2022 On-Site Emissions 0.35 5.49E-04 1.92E-04 1.96E-04
Truck Route 8.08 4.55E-07 3.68E-06
Maximum Annual PM2.5 Concentration 2.0E-04
Senior Living MER UTM coordinates: 582551.53E, 4131147.09N 2 Emission Rates from Emission Rate Calculations (Appendix A - Construction Emissions).

Source
( b )
1 Model Output at the MER based on unit emission rates for sources (1 g/s).

PM2.5
421
CC 02-01-2022
421 of 756
Table C4
Senior Living MER Health Risk Calculations
MER Weight
Conc. Fraction URF CPF Senior Resident
16 < 70 years
Senior Resident
16 < 70 years REL
RESP
(µg/m3) (µg/m3)-1 (mg/kg/day)-1 (mg/kg-day) per million (µg/ m3) ( b ) ( c ) ( d ) ( e ) ( f ) ( g ) ( j ) ( n ) ( o )
Senior Living Receptors - Unmitigated
2022 2.33E-03 1.00E+00 DPM 3.0E-04 1.1E+00 6.77E-07 8.51E-03 5.0E+00 4.67E-04 Total 8.5E-03 4.7E-04
Senior Living Receptors - Mitigated Run: Tier 4 Interim Engines for eq. > 50 HP 2022 1.96E-04 1.00E+00 DPM 3.0E-04 1.1E+00 5.68E-08 7.14E-04 5.0E+00 3.92E-05 Total 7.1E-04 3.9E-05
Senior Resident
OEHHA age bin 16 < 70 years
exposure year(s) 2021-2022
Dose Exposure Factors: exposure frequency (days/year) 365 inhalation rate (L/kg-day) 1 290
inhalation absorption factor 1
conversion factor (mg/µg; m3/L) 1.0E-06
Risk Calculation Factors: age sensitivity factor 1
averaging time (years) 70
per million 1.0E+06
Construction Year Risk Scalar 2 Senior Res
2022 0.84 0.84
Total 0.84 0.84
1 Inhalation rate taken as the 95th percentile breathing rates (OEHHA, 2015). 3 Chronic Hazards for DPM using the chronic reference exposure level (REL) for the Respiratory Toxicological Endpoint.

Source Dose (by age bin) Carcinogenic Risks
(by age bin) Chronic Hazards 3Contaminant
( a )
On & Off-
Site
On & Off-
Site
exposure durations
(year)
2 Risk scalar determined for each year of construction to adjust receptor exposures to the exposure durations for each construction year (see App A - Construction Emissions).
exposure durations per age bin
422
CC 02-01-2022
422 of 756
423
CC 02-01-2022
423 of 756
........................................................................................................................

A PPENDIX C :

G EOTECHNICAL R EPORT
424
CC 02-01-2022
424 of 756
........................................................................................................................

425
CC 02-01-2022
425 of 756

Geotechnical Report

For the New Development at
22690 Stevens Creek
Cupertino, CA 95014
APN#342-14-104

Prepared for

Mr. Ali Mozaffari
Alan Enterprise LLC

Achievement Engineering Corp.
2455 Autumnvale Drive, Unit E
San Jose, California, 95131

Project Number: 413
4 Date: March 03, 2020
426
CC 02-01-2022
426 of 756

Project Number: 4134
Date: March 03, 2020

Mr. Ali Mozaffari
22690 Stevens Creek
Cupertino, CA 95014

Subject: Geotechnical Report
for the New Development at
22690 Stevens Creek
Cupertino,
CA 95014
APN#342-14-104

Dear
Sir,

Achievement Engineering Corp. (AEC) is pleased to submit this Geotechnical Report for the above -
referenced project. The purpose of this study was to evaluate the subsurface soil conditions at the proposed site and develop recommendations for the design and construction of the structure foundations.

We appreciate the opportunity to be of service to you on this project and would be happy to discuss our findings with you. We look forward to serving as your geotechnical/ environmental engineer on the future projects.

Respectfully Submitted,
Achievement Engineering Corp.

Sadaf M. Safaai,
PE
Project Engineer

Copies: Mr. Ali Mozaffari, Alan Enterprise LLC
427
CC 02-01-2022
427 of 756

Achievement Engineering Corp.
ii
Table of Contents
1- Introduction ........................................................................................................................................... 1 1-1- Project Description ....................................................................................................................... 1 1-2- Geologic Setting and Faults .......................................................................................................... 1 1-2-1 Regional Geology ............................................................................................................................ 1 2- Project Investigation ............................................................................................................................. 3 2-1- Field Investigation and Exploratory Boreholes ............................................................................ 3 2-1-1- Ground Water Table .............................................................................................................. 4 2-1-2- Standard Penetration Test (SPT) (ASTM: D1586) ............................................................... 4 2-2- Laboratory Test Results ................................................................................................................ 6 2-2-1- Grain Size Analysis ............................................................................................................... 6 2-3- Natural Moisture Content and Density Test ................................................................................. 7 3- Description of Soil Layers .................................................................................................................... 8 3-1- General Description of the Subsurface Soil Layers ...................................................................... 8 3-2- Geotechnical Parameters .............................................................................................................. 8 4- Foundation Design Recommendations ............................................................................................... 10 4-1- Recommended Foundation ......................................................................................................... 10 4-2- Allowable Bearing Capacity ....................................................................................................... 10 4-3- Total Settlement .......................................................................................................................... 11 4-4- Differential Settlement ............................................................................................................... 11 4-5- Modulus of Subgrade Reaction .................................................................................................. 11 4-6- Ground Floor Slabs ..................................................................................................................... 11 4-7- Lateral Resistance ....................................................................................................................... 11 4-8- Site and Foundation Drainage .................................................................................................... 12 4-9- Utility Trenches .......................................................................................................................... 13 5- Liquefaction Consideration................................................................................................................. 13 6- Seismic Design Considerations .......................................................................................................... 14 7- Construction Considerations ............................................................................................................... 14 7-1- General........................................................................................................................................ 14 7-2- Fill Materials............................................................................................................................... 14 7-2-1- Compacted Structural Fill ................................................................................................... 14 7-2-2- Common Fill ....................................................................................................................... 15 7-3- Quality Control ........................................................................................................................... 15 8- Summary of Design recommendation ................................................................................................ 16 9- Limitations .......................................................................................................................................... 16 10- References ........................................................................................................................................... 17

428
CC 02-01-2022
428 of 756

Achievement Engineering Corp.
iii
Exhibit I – Boring Logs
Exhibit II - Lab Results
Exhibit III - Maps
Exhibit IV – USGS Seismic Design
Exhibit V – Shallow Footing Design

429
CC 02-01-2022
429 of 756

Achievement Engineering Corp.
1 1- Introduction

Achievement Engineering Corp. (AEC) has performed a geotechnical investigation at 22690 Stevens Creek, Cupertino, CA 95014. This report discusses the findings of the geotechnical investigation program, including the site soils and groundwater presence, and presents recommendations for the design and construction of the foundation of the structure.

The objective of this report is to evaluate the characteristics of the subsurface strata and to obtain geotechnical parameters for the design of the foundation.

The following report highlights the significant findings and conclusions representing our best professional judgment based on information and data available to us during the course of this investigation.

1 -1- Project Description

The purpose of this study was to investigate the subsurface soil and groundwater presence at the site of 22690 Stevens Creek, Cupertino, CA 95014 and to develop foundation design recommendations for the project based on our evaluation of subsurface conditions. In addition, comments and recommendations related to foundation are provided in this report. Other geotechnical aspects of the project design, including lateral earth pressures, drainage and backfill requirements, are also
discussed.

The Site is located at 22690 Stevens Creek, Cupertino, CA 95014 , with coordinates of 37 ° 19’

18.32” N and 122° 04’ 8.12” W.

The vicinity map of the project is illustrated in Exhibit III. The Site Location in Topographic Map and Landslide Map have also been presented in Exhibit III of the report showing the subject site is located on Class 0 –
No Susceptibility Landslide Zone (Source USGS).

1-2- Geologic Setting and Faults
1-2-1 Regional Geology

The project site is located within the Coast Range Geomorphic Province. Local uplift of the Santa Cruz Mountains within the last 2 to 3 million years has occurred due to a restraining bend of the San Andreas Fault, producing transpressional forces across the plate boundary. Thrust faults bound the San Andreas Fault, are responsible for uplift of the range. The range is characterized by rugged hills with moderate relief, steep valleys, and locally steep hillsides abutting drainages. East-flowing 430
CC 02-01-2022
430 of 756

Achievement Engineering Corp.
2 drainages result in dissection of the mountain range and alluvial deposition within the San Francisco Bay structural trough.

The site is underlain by surficial sediments (Qoa/Qt), older surficial sediments (age; late Pleistocene) older alluvial terrace gravel; sand and clay, un-deformed.

The Site Location on 7.5' Series Geologic Map by USGS, has been represented in Exhibit III of the report.
1 -2-2- Faults

Fault activity map of California (CGS, 2010) shows that there are some faults around the site location (Exhibit III). Among the eight faults of Monte Vista-Shannon, Berrocal, Cascade, Stanford, San Andreas San Jose, Pulgas and Butano, the nearest one to the site location is Monte Vista- Shannon fault with a distance of 0.5 mile (Exhibit III) and the most major one is San Andreas with a distance of 4.7 miles.

The project site is located on the north of Monte Vista-Shannon (0.5 mi.), northeast of Berrocal Fault (1.91 mi.), northwest of Cascade Fault (2.13), southwest of Stanford Fault (4.0 mi.), northeast of San Andreas fault (4.7 mi.), southwest of San Jose (6.32 mi.) , southeast of Pulgas (7.29 mi.) and northeast of Butano Fault (8.45 mi).

The Monte Vista Shannon Fault is a potentially active fault. It is a relatively short fault that runs between and generally parallel to the much longer San Andreas Fault and Hayward Fault Zones, trending northwest along the eastern foothills of the Santa Cruz Mountains in the Coast Range Geomorphic Province. The most recent activity has been estimated to have been approximately 700,000 years ago. It has a slip rate of 0.4 mm/year. The fault runs through the campus of the Foothill College.

The Berrocal is a late Quaternary southwest-dipping, reverse-dextral oblique slip fault zone that forms a part of what has been referred to as the Southwestern Santa Clara Valley thrust belt. The Berrocal fault zone, which is commonly associated with the Monte Vista-Shannon fault zone, offsets sediment of the Pliocene-Pleistocene Santa Clara Formation and probably deforms late Pleistocene fluvial and alluvial fan deposits. It has been concluded that the Berrocal fault zone lacks evidence of Holocene displacement. Late Quaternary slip rate is poorly constrained and the recurrence interval is not known. The amount of uplift of late Pleistocene terraces (about 250 ka) of ancestral Los Gatos Creek suggests a post-250 ka incision rate of 0.6 mm/yr.

The Cascade fault is a potentially active fault. It is a relatively short fault that stretches from City of Los Gatos to City of Los Altos in Southern Bay Area. This fault is an undifferentiated Quaternary possibly active in Late Quaternary or Holocene, reverse to reverse-dextral oblique slip fault that 431
CC 02-01-2022
431 of 756

Achievement Engineering Corp.
3 forms a part of what McLaughlin et al. (1996) refer to as the Southwestern Santa Clara Valley thrust belt, which is located generally along the foothills of the northeastern Santa Cruz Mountains. Slip rates for the Cascade fault is still unknown, although Hitchcock and Kelson (1999) determined a

0.2±0.05 mm/yr incision rate of Regnart Creek across the trace of the Cascade fault.

Stanford and Pulgas Faults are Quaternary fault with undifferentiated ages. The San Andreas is the best-known and largest fault system in North America. This fault trends in a northwesterly direction for nearly 780 miles through much of western California. It is a transform boundary separating two crustal plates that move very slowly. The Pacific plate located at the west, moves northwestward relative to the North America plate, causing earthquakes along the faults. The slip rate for this fault is up to 1.5 in./year.

The San Jose fault dips steeply to the north. Type of Faulting is left-lateral strike-slip; minor reverse component possible with a length of 18 km, close to Claremont, La Verne and Pomona. Its last Significant Quake was Feb. 28, 1990 (ML 5.4). Its most recent surface rupture was Late Quaternary.

It has a slip rate between 0.2 and 2.0 mm/yr with probable magnitude of ML 5 to 6.

The San Andreas is the best-known and largest fault system in North America. This fault trends in a northwesterly direction for nearly 780 miles through much of western California. It is a transform boundary separating two crustal plates that move very slowly. The Pacific plate located at the west, moves northwestward relative to the North America plate, causing earthquakes along the faults. The slip rate for this fault is up to 1.5 in./year.

The Butano Fault extends for 46 km from San Gregorio to the San Andreas Fault; it exhibits right lateral motion, at slip rate of less than 0.2 mm/yr. (Quaternary Fault and Fold Database of the United States).
2- Project Investigation

A subsurface exploration program consisting of two test borings was conducted on 2 February 2020
under the supervision of AEC.
2-1- Field Investigation and Exploratory Boreholes

The test borings were drilled up to depths of 7 and 8 ft. below the ground surface. Borings were advanced using 3 1/2” diameter hollow stem augers. Borings were terminated at these depths due to refusal. Table 1 shows the specifications of the boreholes; the boreholes location is shown in Exhibit III. Boreholes log is also presented in Exhibit I of the report.

432
CC 02-01-2022
432 of 756

Achievement Engineering Corp.
4 Table 1- Specifications of the borehole
Borehole Name Depth (ft.) Diameter (inch)
B1 7 3 1/2”
B2 8 3 1/2”

2-1-1- Ground Water Table

According to the boreholes log, no water table has been encountered in borehole up to depth of 8 ft.

2-1-2- Standard Penetration Test (SPT) (ASTM: D1586)

Soil samples were typically recovered continuously at 1 -2 ft. intervals by driving a standard split- spoon sampler ((1-3/8 in). I.D., (2 in.) O.D., a distance of 18 inches or 24 inches into the undisturbed soil under the impact of a 140 lb. hammer free-falling 30 inches. The number of blows required to advance the sampler through each 6 in. interval was recorded. The “N” value is taken as the number of blows required to advance the sampler the last 12 in. of the 18-in. sampling range. When the split- spoon sampler was advanced over 24- in. range, the “N” value is the number of blows required to drive the sampler the middle 12 in. Variations of SPT versus depth, in different boreholes, are presented in Figure 1 and Table 2.

Table 2-The value of SPT versus depth in borehole

Depth (ft) Nspt

B1
2 >50
5 >50
B2
2 15
5 >50

433
CC 02-01-2022
433 of 756

Achievement Engineering Corp.
5 Figure 1-Variation of SPT versus depth in different boreholes

According to SPT test results, the SPT value is more than 50 in B1 which is due to a very dense layer of clayey sand, also the SPT values are 15 near the ground surface in B2 and are more than 50

in other depths, this shows existence of a firm layer of clay near ground at B2, but eventually that the consistency will change to hard.

According to the US Army Corps of Engineers, ENGINEER MANUAL ENGINEERING AND DESIGN, Geotechnical Investigations, the descriptive consistency of fine-grained soils may be classified as “very firm” to “hard”
per SPT correlation and “very dense” for coarse-grained soils.

Table 3- Granular soils classification based on SPT number (US Army Corps of Engineers Manual)

0 2
4 6
8 10
12 0 20 40 60 80 100
Depth (ft)
NSPT
SPT vs Depth
B1
B2
434
CC 02-01-2022
434 of 756

Achievement Engineering Corp.
6 Table 4- Strength of fine-grained soils (US Army Corps of Engineers Manual)

2-2- Laboratory Test Results

A laboratory soil testing program was performed to determine soil classification and for correlation of engineering properties. Laboratory tests were performed on selected samples of the soils. Testing consisted of geotechnical index tests including water content and density determinations and grain
size distributions and Atterberg Limits. The results of these tests have been used to estimate the main parameters required for designing of the foundation, such as internal friction angle and cohesion.

The details of Lab tests are presented in Exhibit II.

2-2-1- Grain Size Analysis

Particle size analysis ASTM (D421-85(02)), (D422-63(02)) Atterberg limits (AASHTO T89 and T90 – ASTM D4318)
The particle size analysis is conducted on the selected soil samples in accordance with the abovementioned standards.

According to particle distribution results, soil classification is determined in compliance with the Unified Soil Classification System (USCS) (ASTM D2487 and ASTM D2488) and is recorded on the borehole log. Grain size distribution tests results are presented in Table 5 . According to grain size distribution tests results, alluvial part of the site is categorized mainly as clay of low plastici ty and clayey sand.

435
CC 02-01-2022
435 of 756

Achievement Engineering Corp.
7 Table 5- Grain size distribution tests results

Classification
(USCS)
Atterberg
Limits Graining (%) Sample
Depth (ft.)
Borehole
No. PI % LL % Clay and
Silt Sand Gravel
SC 9 23.9 32.9 44.3 22.8 2 B1
CL 9.5 22.8 54.2 36.3 9.5 2 B1

2-3- Natural Moisture Content and Density Test

- Natural moisture content ASTM (D2216-98)
The natural moisture contents of soil samples are measured for the selected samples, the value of each is indicated in borehole logs.

-
Density Tests
Density of the selected soil samples has been determined by measuring the weight and volume of the samples obtained from sample liners. Water content and dry density tests results of the soil samples are summarized in Table 6
.

Table 6- Water content and dry unit weight

Borehole
No.

Sample
Depth (ft.)
Height of
Sample w (%) Dry Density
(pcf)
B1 1-2 - 12 -
B1 2-3.5 6” 10 122.2
B1 4-5 - 11 -
B1 5-6.5 6” 11 120.7
B2 1-2 - 9 -
B2 2-3.5 6” 10 107.4
B2 4-5 - 11 -
B2 5-6.5 6” 12 116.5

436
CC 02-01-2022
436 of 756

Achievement Engineering Corp.
8 3- Description of Soil Layers
3-1- General Description of the Subsurface Soil Layers

Based on the visual observations during the drilling, in-situ test results and laboratory testing, the encountered soil is generally classified as:
 Clayey sand (SC)
 Clay of low plasticity (CL)
The soil is classified as very dense clayey sand in B1 and a very firm low plasticity clay in B2 (at surface).
3-2- Geotechnical Parameters

The SPT has been used to correlate engineering parameters such as strength, angle of internal friction (Table 7) and the stress-strain modulus (Es) as shown in Table 8.

Table 7- Typical values of soil friction angle for different soils according to USCS

Description USCS
Soil friction angle [°]
Reference
min max
Inorganic clays, silty clays, sandy clays
of low plasticity CL 27 35
[1]
Silty clay OL, CL,
OH, CH 18 32 [2]
Clay CL, CH,
OH, OL 18 28 [2]

1. Swiss Standard SN 670 010b, Characteristic Coefficients of soils, Association of Swiss Road and Traffic Engineers

2. Minnesota Department of Transportation, Pavement Design, 2007

437
CC 02-01-2022
437 of 756

Achievement Engineering Corp.
9 Table 8-Equations for stress-strain modulus Es by several test methods (Bowles, 2002) Es in kPa for SPT and units of qc for CPT; divide kPa by 50 to obtain ksf.

Final values of geotechnical parameters for the subject site using the field observations, in -situ and laboratory tests are summarized in Table 9.

Table 9- Geotechnical Parameters Estimates

Material γwet (pcf) γsat (pcf) c (ksf) φ
(degrees) Es (ksf) ν K0 Ka Kp
SC 134 138 0.3 30 600 0.3 0.5 0.33 3.0
CL 124 132 0.35 27 350 0.4 0.55 0.38 2.66
γwet : wet unit weight in the field. Es : elasticity modulus γsat : saturated unit weight. ν : poisson ratio
c : cohesion. K0 : at rest earth pressure
φ : angle of internal friction Ka , Kp: active and passive earth pressure 438
CC 02-01-2022
438 of 756

Achievement Engineering Corp.
10 4- Foundation Design Recommendations
Recommendations presented herein are based on the proposed building layout and site development plan as understood at this time. The development is muli-family residential and commercial structures of three story. However, at the time of preparation of this report, structural column loads were not available and no construction document is available. As further information is developed by the architect and/or structural engineer concerning these items, the design criteria should be reviewed by AEC for continued applicability. As a general recommendation, foundation and below- grade elements of the building should be designed in accordance with the building code selected for design. The following sections provide specific geotechnical design recommendations for the foundation and below-grade structure, if any.

The foundation bearing soils are typically very firm low plasticity clay and very dense clayey sand.

It is necessary to build up the subgrade to achieve the proposed footing subgrade level, for this it is recommended that compacted structural fill be used. The compacted structural fill should be graded in accordance with the recommendations in Section 7.2.1. 4 -1- Recommended Foundation

Based on the loading conditions assumed by us and subsurface conditions as observed in the field investigations it is our opinion that direct soil bearing foundations such as reinforced concrete strip foundation will likely provide the most technically-feasible and cost-effective foundation system for the proposed structure.
4-2- Allowable Bearing Capacity

As noted above, the foundation bearing soils at the site consist of very firm low plasticity clay and very dense clayey sand. The recommended maximum allowable gross bearing pressure for design of strip footing in these soils in undisturbed condition is 3.3 ksf for 18 in. width and 3.2 ksf for 15 in. widths. This bearing pressure value applies to the total dead load plus permanently and/or frequently applied live loads including the weight of the foundation elements. This bearing pressure may however, be increased by one-third when considering transient loads such as earthquake forces.

The least lateral dimension of continuous footings should be 1 8 in., for the structures. Exterior
footings and footings in unheated areas should bear a minimum of 12 in. below the adjacent ground surface. The bottom of footings should be established below a 2 horizontal to 1 vertical (2H:1V) slope line drawn upward and outward from the bottom of any adjacent utility or structure.

The outputs of foundation bearing capacity are presented in Exhibit V and can be consulted for other footing widths, in case of existence of detached parkings in the development for example. 439
CC 02-01-2022
439 of 756

Achievement Engineering Corp.
11 4-3- Total Settlement

Settlement considerations, rather than bearing capacity, generally control spread footing or reinforced concrete mat foundation selection and design at these depths in these soils. It is our opinion that for the maximum allowable bearing pressure recommended above, soil bearing foundations should experience a maximum post-construction settlement of approximately 1 in. We anticipate that the majority of the settlements will occur during or soon after construction with the largest settlements occurring at the center of the structure. As noted above, the anticipated bearing pressure is more than the existing pressure of the overburden soils at the proposed bearing elevation so settlement will control foundation selection.
4 -4- Differential Settlement

Differential settlements are generally caused by variations in soil profile (including layer thickness), compressibility characteristics, applied load, bearing pressures, foundation dimension, and foundation stiffness. At this time, it is expected that the differential settlement should be on the order of ½ inch. However, when the design documents are ready, this value should be re-evaluated. 4 -5- Modulus of Subgrade Reaction

If a reinforced concrete strip is selected as the preferred option, the structural design of reinforced concrete strip foundations typically requires a modulus of subgrade reaction (Winkler spring) or a similar elastic analysis method to determine thickness and reinforcing requirements for the strip foundation. We recommend that a modulus of subgrade reaction (k s) of 116 kips per cubic foot (kcf) be used.
4-6- Ground Floor Slabs

It is recommended that the ground floor slabs of buildings and structures, if any, be designed as soil- supported slabs-on-grade, bearing on a minimum 6-inch thick layer of crushed stone that is graded in accordance with the recommendations in Section 7 .2. We also recommend that a 10 mil-thick polyethylene vapor barrier be placed on top of the aggregate layer to reduce moisture condensation on the underside of the slab-on-grade.
4-7- Lateral Resistance

Shallow foundations bearing on a reinforced subgrade or on compacted structural fill may be designed to resist lateral forces using a friction coefficient of 0.4 along the bottom of the foundations and a passive resistance of 365 pounds per square foot per foot (pcf) of depth on the vertical sides of the foundations. This value does not include a safety factor; a safety factor of 1.5 should be used 440
CC 02-01-2022
440 of 756

Achievement Engineering Corp.
12 against sliding in the design. The frictional and passive pressure components of lateral resistance may be combined, provided that passive resistance does not exceed two-thirds of the total. The top 24-in of soil should be neglected when calculating passive lateral earth pressures unless the area around the foundation is covered with pavement.

Retaining wall, if any, will be subjected to lateral earth pressures. A soil wet unit weight and coefficient of active lateral earth pressure (k a) of 129 pcf and 0.42 , respectively, should be utilized for design of walls.

Additional active pressure should be added for a surcharge condition due to sloping ground, vehicular traffic or adjacent structures and should be designed for each condition as the project progresses.
4 -8- Site and Foundation Drainage

As previously discussed, and as shown on the test boring logs, groundwater was not encountered in any of the other explorations. However, during periods of significant precipitation, or during the spring thaw, there is a possibility that water could become trapped on the outside face of the walls, with no way to relieve the pressure head from the accumulated water, the water could exert excess pressure on the walls and leak into the finished below grade spaces.

To drain such water, it is recommended that a perimeter wall drain be provided along the outside of the wall. The perimeter drain should consist of a 0.1 m (4-inch) diameter perforated pipe surrounded by 0.15 m (6 inches) of crushed stone, graded in accordance with the recommendations in Section 7 .2.2, placed inside a non-woven geotextile filter fabric to limit silting. The perimeter drain trench should be backfilled with compacted structural fill. Pipe invert elevations should be kept below the bottom of the adjacent slab but above the footing bearing elevation. The perimeter drain should be pitched to drain by gravity to the site storm drain system.

All grades must provide effective drainage away from the structures, during and after construction.

Water ponding next to the structures can result in greater than calculated soil movement and differential floor slab settlement, cracked slab and wall movement or leaked roof. Effective drainage should be maintained during life time of the building.

Exposed ground should be sloped at a minimum 5 percent away from the structure for the at least 10 ft. beyond the perimeter of the structure. After the construction (building and landscape), we recommend final grades to be inspected for effective drainage. Grades of the around of the building should also be inspected periodically during life time of the building.

Planters located within 10 ft. of the structure should be self-contained to prevent water accessing the building and pavement subgrade soil (if any). Sprinkler main and spray heads should be located a minimum 5 ft. away from the building lines. Low volume, drip styled landscaped irrigation should 441
CC 02-01-2022
441 of 756

Achievement Engineering Corp.
13 not be used near the building. Roof run off should be located in the drains or gutters. Roof drain and downspouts should discharge onto pavements that slope away from building/structures or the downspouts should extend a minimum of 10 ft. away from the structures.

4-9- Utility Trenches

Utility trenches should be properly backfilled. The pipes should be bedded on clean sands (Sand Equivalent greater than 30) to a depth of at least 1 foot over the pipe, and the bedding material must be inspected and approved in writing by a representative from our firm. The use of gravel is not acceptable unless used in conjunction with filter fabric to prevent the gravel from having direct contact with soil. The remainder of the trench backfill may be derived from onsite soil or approved import soil, compacted as necessary, until the required compaction is obtained as below:

Utility trenches should be backfilled with fill placed in lifts not exceeding 8 inches in uncompacted thickness. Native backfill materials should be compacted to at least 90 percent relative compaction and granular import material should be compacted to at least 95 percent relative compaction. These compaction recommendations assume a reasonable “cushion” layer around the pipes.

If imported granular soil is used, sufficient water should be added during the trench backfilling operations to prevent the soil from “bulking” during compaction.

5- Liquefaction Consideration

Liquefaction is a phenomenon in which loose, saturated, relatively cohesionless soil deposits lose shear strength during strong ground motions. Primary factors controlling liquefaction include intensity and duration of ground motion, gradation characteristics of the subsurface soils, in-situ stress conditions, and the depth to groundwater. Liquefaction is typified by a loss of shear strength in the liquefied layers due to rapid increases in pore water pressure generated by earthquake accelerations.

Liquefaction typically occurs in areas where the soils below the water table are composed of poorly consolidated, fine to medium-grained, primarily sandy soil. In addition to the requisite soil conditions, the ground acceleration and duration of the earthquake must also be of a sufficient level to induce liquefaction.

The project location on liquefaction map (Source CGS) site is not within liquefaction hazard zone, thus further study was not within the scope of services for this report.

442
CC 02-01-2022
442 of 756

Achievement Engineering Corp.
14 6- Seismic Design Considerations

The details of USGS seismic design are presented in Exhibit IV. 7- Construction Considerations

7-1- General

The primary purpose of this section of the report is to comment on items related to excavation, earthwork and related geotechnical aspects of the proposed foundation design. It is written primarily for the engineer having responsibility of preparation for the plans and specifications of the foundation,
but it may also aid personnel who monitor the construction. Prospective contractors for this project must evaluate construction problems on the basis of their experience on similar projects, taking into account their own construction methods and procedures.

7 -2- Fill Materials

7-2-1- Compacted Structural Fill

The structural fill should be a well-graded granular material. Caltrans AB Class II is recommended to be used for this purpose with the following specifications.

Table 10-CALTRANS AB Class II recommended parameters

Material γd (pcf) γsat (pcf) c (ksf) φ
(degrees)

CALTRANS AB CLASS
II
(92% compacted)
125 130 0.1 38

Minimum 5 feet of the compacted backfill behind any wall is required for wall of 10’ tall , shorter wall can have narrower backfill zone.

Imported structural fill should be used if the on-site excavated soils cannot meet the gradation requirements indicated above.

In addition to the above requirements, structural fill to be placed in the upper 3 ft. of filled areas
during periods of wet and/or freezing weather should contain less than 5 percent passing the No. 200 443
CC 02-01-2022
443 of 756

Achievement Engineering Corp.
15 sieve. Material proposed as structural fill should be tested and approved by a qualified geotechnical engineer prior to its use.

To evaluate the suitability and the quality of the fill source, we recommend that the laborator y testing of fill material be performed in accordance with the ASTM Test Methods indicated below.

Table 11- Summary of ASTM Test Methods

Summary of ASTM Test Methods
Test ASTM Designation
Moisture Content D 2216
Modified Proctor D 1557
Sieve Analysis D 422
Atterberg Limits D 4318

Structural fill in unconfined areas should be placed in horizontal lifts not exceeding 9-in. in loose thickness and compacted to at least 95 percent of the laboratory maximum dry density, as determined by ASTM Test D 1557 (Modified Proctor). Structural fill should be moisture conditioned to within 2 percentage points of the optimum moisture content.

Structural fill should be compacted by self-propelled vibratory rollers or other approved compaction equipment. Where compaction occurs in confined areas, the loose lift thickness should be reduced to a maximum of 6 in.
and compaction performed by hand-guided vibratory compactors or tampers.

Before placing fill materials, the exposed natural soil should be observed and proof rolled to identif y any soft compressible layers. At the end of each day’s operations, the last lift should be rolled by a smooth-wheel roller to eliminate ridges of un-compacted soil to aid runoff and drainage. No layer of fill should be placed until the underlying materials have been approved.

7-2-2- Common Fill

Common (non-structural) fill should consist of sandy or gravelly soil with a maximum particle size of 3 inches, with less than 35 percent passing the No. 200 sieve, and with a plasticity index of 20 or less.
7-3- Quality Control

Placement and compaction of all fill materials should be monitored and tested by a qualified technician under supervision of a professional geotechnical engineer. We recommend that all structural fill placements be tested in accordance with ASTM D2922 and D3017 (Nuclear Density Method) to verify the density, degree of compaction, and moisture content of the fill. The 444
CC 02-01-2022
444 of 756

Achievement Engineering Corp.
16 specifications should call for frequent testing on each lift. In the event where any portion of the fill fails to meet the compaction requirements, the area should be reworked, re-compacted, and retested until the specified compaction is achieved.

8- Summary of Design recommendation

The site soil parameters need to be chosen from Table 9.

The in-fill soil back of any wall in contact with geogrid in general needs to be in compliance of section 7.2.

All the design methods and parameters including factor of safeties need to be followed per requirements of the engineer designing the structure. All the construction details are required to be per direction of the engineer designing the structure.

Drainage is required per detail and specs of footings.

All the deviations from this report needs to be brought to the attention of AEC as will be discussed in section 9
.

Section 7
.3 of this report and all the special inspection requirements mentioned in the report are required to be performed by AEC and needs to be identified on the cover sheet of the construction documents before being submitted to the authority having jurisdiction. The plans are required to be reviewed by AEC and be verified to be in compliance with the requirements of this report before being submitted to jurisdiction having authority.

9- Limitations

This Report was prepared pursuant to an Agreement dated 01 /24/2020 between Mr. Ali Mozaffari
(Alan Enterprise LLC) and AEC. All uses of this Report are subject to, and deemed acceptance of, the conditions and restrictions contained in the Agreement. The observations and conclusions described in this Report are based solely on the Scope of Services provided pursuant to the Agreement. AEC has not performed any additional observations, investigations, studies or other testing not specified in the Agreement and the Report. AEC shall not be liable for the existence of any condition the discovery of which would have required the performance of services not authorized under the Agreement.

This Report is prepared for the exclusive use Alan Enterprise LLC in connection with the design and construction of the mentioned development.

There are no intended beneficiaries other than Alan
Enterprise LLC AEC shall owe no duty, whatsoever, to any other person or entity on account of the 445
CC 02-01-2022
445 of 756

Achievement Engineering Corp.
17 Agreement or the Report. Use of this Report by any person or entity other than Alan Enterprise LLC for any purpose whatsoever is expressly forbidden unless such other person or entity obtains written authorization from Alan Enterprise LLC and from AEC. Use of this Report by such other person or entity without the written authorization of Alan Enterprise LLC and AEC shall be at such other person's or entities sole risk, and shall be without legal exposure or liability to AEC.

Use of this Report by any person or entity, including by Alan Enterprise LLC for a purpose other than for the design and construction of the proposed development is expressly prohibited unless such person or entity obtains written authorization from AEC indicating that the Report is adequate for such other use. Use of this Report by any person or entity for such other purpose without written authorization by AEC shall be at such person's or entities sole risk and shall be without legal exposure or liability to AEC.

This report reflects site conditions observed and
described by records available to AEC as of the date
of report preparation. The passage of time may result in significant changes in site conditions, technology, or economic conditions which could alter the findings and/or recommendations of the report. Accordingly, Alan Enterprise LLC and any other party to whom the report is provided recognize and agree that AEC shall bear no liability for deviations from observed conditions or available records after the time of report preparation.

Use of this Report by any person or entity in violation of the restrictions expressed in this Report shall be deemed and accepted by the user as conclusive evidence that such use and the reliance placed on this Report, or any portions thereof, is unreasonable, and that the user accepts full and exclusive responsibility and liability for any losses, damages or other liability which may result.

10- References

1 - 7.5' Series Geologic Map, USGS.
2- 7.5' Series Topographic Map, USGS.
3- ASTM test methods.
4- Department of the U.S. army corps of engineers Washington, DC 20314-1000, Engineering and design geotechnical investigations, Manual No. 1110-1-1804. 5- Fault activity map of California, CGS, 2010.
6- Foundation analysis and design, Joseph E. Bowles, McGraw-Hill, fifth edition. 7- Liquefaction map, USGS.
446
CC 02-01-2022
446 of 756

Achievement Engineering Corp.
18 8- Landslide map, USGS.
9- Minnesota Department of Transportation, Pavement Design, 2007. 10- Swiss Standard SN 670 010b, Characteristic Coefficients of soils, Association of Swiss Road and Traffic Engineers.
11- Quaternary Fault and Fold Database of the United States.

447
CC 02-01-2022
447 of 756

Exhibit I
Boring Log

448
CC 02-01-2022
448 of 756
Address:

SPT
C2
C2.5
Notes:

0.0 - 7 ft
Brown clayey sand with gravel ( SC ) - 1
Damp - Particle is angular with elongated 12.0
shape and gravel maximum size - None 2 40
reaction with HCL - Hard to very hard C2.5 49 66 >4.5 122.2 10 32.9 44.3 22.8 23.9 9.0 consistency - Strong cementation - Blocky 3 53
structure - None dilatancy - Low to none
dry strength - High toughness - Non 4
plastic - Very dense. 11.0
5 58
C2.5 67 91 >4.5 120.7 11.0
6 73
7 No underground water encountered 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
---
Weather:

BLOWS PER FOOT
POCKET PEN. (tsf)
DRY DENSITY (pcf)
Sunny
B1
Logged By : NamiTest Date : 2/4/2020
BORING ELEV.: BORING DIA.:

EXPLORATORY BORING LOG Project No : Borehole No. : 4134 Cupertino
SAMPLER:

SPT
:cal. 2"
Company Drilling: AEC Drilling Corp.
:cal. 2.5"

LIQUID LIMIT

PLASTICITY INDEX
Refusal depth at 7 ft
LOACATION OF BOREHOLE : Specified on Plan
Description:

SANDS (%)
GRAVELS (%)

USCS SOIL TYPE
DEPTH (feet)
MOIST. CONT. (%)
N-SPT
SAMPLE
FINES (%)
FORM#: S-10 REV.2 DATE PREPARED: 10/20/2014 DATE REVISED: 11/25/2014 449
CC 02-01-2022
449 of 756
Address:

SPT
C2
C2.5
Notes:

0.0 - 4 ft
Brown to light brown sandy lean clay ( CL) 1
Wet - Maximum particle size is cobble and 9.0
angular with elongated shape - No odor - 2 7
None reaction with HCL-Hard consistency C2.5 11 15 >4.5 107.4 10 54.2 36.3 9.5 22.8 9.5 Strong cementation - Blocky structure - 3 12
None dilatancy - None dry strength - High
Toughness - None plastic - Stiff. 4

11.0 4.0 - 8.0 ft 5 44
Same as above but hard. C2.5 68 92 >4.5 116.5 12.0
6 73
7 8
Refusal depth at 8 ft
No underground water encountered 9
10 11
12 13
14 15
16 17
18 19
20 21
22 23
24 25
26 SAMPLE
FINES (%)
LOACATION OF BOREHOLE : Specified on Plan
Description:

SANDS (%)
GRAVELS (%)

USCS SOIL TYPE
DEPTH (feet)
MOIST. CONT. (%)
N-SPT

LIQUID LIMIT

PLASTICITY INDEX
EXPLORATORY BORING LOG Project No : Borehole No. : 4134 Cupertino
SAMPLER:

SPT
:cal. 2"
Company Drilling: AEC Drilling Corp.
:cal. 2.5"
B2
Logged By : NamiTest Date : 2/4/2020
BORING ELEV.: BORING DIA.: ---
Weather:

BLOWS PER FOOT
POCKET PEN. (tsf)
DRY DENSITY (pcf)
Sunny
FORM#: S-10 REV.2 DATE PREPARED: 10/20/2014 DATE REVISED: 11/25/2014 450
CC 02-01-2022
450 of 756

Exhibit II
Lab Results

451
CC 02-01-2022
451 of 756
Moisture Density
(AASHTO T265 - ASTM D2216)
Report Date:

Project No:

Project Name:

Project Address:

Technician:

Type of Material:

Source:

Sampled by: Sample Date:

Sample No: B1 1'- 2' B1 2' - 3.5' B1 4' - 5' B1 5' - 6.5' Ht. of Sample: Disturbed 6.00 Disturbed 6.00
Tare No: CA - 17 CA - 10 CA - 5 CA - 14
Gross Wet Wt: 1057.69 1255.72 1270.78 1241.74
Gross Dry Wt: 977.95 1167.76 1174.42 1152.29
Tare Wt: 309.93 315.16 313.25 310.13
Net Dry Wt: 668.02 852.60 861.17 842.16
Wt. of Water: 79.74 87.96 96.36 89.45
% Moisture 12% 10% 11% 11%
Liners Dia 2.5" 2.5"
Density Factors 0.860 0.860
Dry Density 122.21 120.71
Tested By: Reviewed By:

Signature: Signature:
2/17/2020
4134
Alan
Cupertino
Nami
Soil Sample Description:

Project No:

Project Name:

Project Address:

Technician:

Type of Material:

Source:

Sampled by: Sample Date:

Sample No: B2 1'- 2' B2 2' - 3.5' B2 4' - 5' B2 5' - 6.5' Ht. of Sample: Disturbed 6.00 Disturbed 6.00
Tare No: CA - 2 CA - 3 CA - 6 CA - 15
Gross Wet Wt: 1221.66 1139.35 1328.28 1217.07
Gross Dry Wt: 1144.92 1060.98 1224.34 1123.01
Tare Wt: 311.43 311.66 311.80 309.96
Net Dry Wt: 833.49 749.32 912.54 813.05
Wt. of Water: 76.74 78.37 103.94 94.06
% Moisture 9% 10% 11% 12%
Liners Dia 2.5" 2.5"
Density Factors 0.860 0.860
Dry Density 107.40 116.54
Tested By: Reviewed By:

Signature: Signature:

Sample Description:

SIEVE ANALYSIS SHEET
(AASHTO T27-ASTM C136 and D6913)
2/20/2020
B1 2' - 3.5' 4134
½” Alan
2 [4] Cupertino
8" Nami
Soil
Sieve
Size
Sieve
Size
Wt. Ret.
(gr) % Ret. % Passing Retained
Limit (kg) Pan #: CA - 10
4 100mm 4” 0 0.00% 100.00% DntUse Pan weight (gr): 315.16 3 75mm 3” 0 0.00% 100.00% DntUse
2 50mm 2” 0 0.00% 100.00% 3.6 Mass of pan & dried sample 1 37.5mm 1 ½” 0 0.00% 100.00% 2.7 before wash (gr): 609.13 1 25mm 1” 0 0.00% 100.00% 1.8
1 19mm ¾” 0 0.00% 100.00% 1.4 Original mass before wash (gr): 293.97 0 12.5mm ½” 23.15 7.87% 92.13% 0.89
0 9.5mm 3/8” 8.56 2.91% 89.21% 0.67 Min. readability of scale (gr) = 0.29 0 4.75mm #4 35.44 12.06% 77.16% 0.33
0 2.36mm #8 27.6 9.39% 67.77% Mass of pan & dried sample 0 1.18mm #16 18.9 6.43% 61.34% after wash (gr): 512.6
0 600µm #30 16.07 5.47% 55.87%
0 300µm #50 22.47 7.64% 48.23% Mass of sample after wash & 0 150µm #100 24.18 8.23% 40.00% being dried (gr): 197.44 0 75µm #200 21.01 7.15% 32.86%
Mass after mechanical shake (gr): 197.38
SampleSE= Df Percent of Gravel = 22.84%
Fine Content = 32.86%
100 Percent of Sand = 44.30%
D10 (mm)= 0.0750
D30 (mm)= 0.0750
D60 (mm)= 1.0379
D50 (mm)= 0.3695
Fineness Modules (FM): Total Percentages of Coarser Than #100 = 100 Cc= 13.8
Cu= 0.1
Total H²O:

Check for waste limt (0.3%) : 0.03%
Material:

Wt Ret: %Passing:

Project Address:

Date:

Project No.:

Project Name:

Tested By:

Borehole Number and Depth:

Min. Test Sample size in kg [lb] =
Nominal Max. Size in sample =
Nominal Dimension of seive =

0.00%

20.00%

40.00%

60.00%

80.00%
100.00%

SIEVE ANALYSIS SHEET
(AASHTO T27-ASTM C136 and D6913)
2/20/2020
B2 2' - 3.5' 4134
½” Alan
2 [4] Cupertino
8" Nami
Soil
Sieve
Size
Sieve
Size
Wt. Ret.
(gr) % Ret. % Passing Retained
Limit (kg) Pan #: CA - 3
4 100mm 4” 0 0.00% 100.00% DntUse Pan weight (gr): 311.66 3 75mm 3” 0 0.00% 100.00% DntUse
2 50mm 2” 0 0.00% 100.00% 3.6 Mass of pan & dried sample 1 37.5mm 1 ½” 0 0.00% 100.00% 2.7 before wash (gr): 609.98 1 25mm 1” 0 0.00% 100.00% 1.8
1 19mm ¾” 0 0.00% 100.00% 1.4 Original mass before wash (gr): 298.32 0 12.5mm ½” 7.43 2.49% 97.51% 0.89
0 9.5mm 3/8” 5.59 1.87% 95.64% 0.67 Min. readability of scale (gr) = 0.30 0 4.75mm #4 15.17 5.09% 90.55% 0.33
0 2.36mm #8 12.91 4.33% 86.22% Mass of pan & dried sample 0 1.18mm #16 13.15 4.41% 81.81% after wash (gr): 448.3
0 600µm #30 14.83 4.97% 76.84%
0 300µm #50 22.92 7.68% 69.16% Mass of sample after wash & 0 150µm #100 23.68 7.94% 61.22% being dried (gr): 136.64 0 75µm #200 20.87 7.00% 54.23%
Mass after mechanical shake (gr): 136.55
SampleSE= Df Percent of Gravel = 9.45%
Fine Content = 54.23%
100 Percent of Sand = 36.32%
D10 (mm)= 0.0750
D30 (mm)= 0.0750
D60 (mm)= 0.1369
D50 (mm)= 0.0750
Fineness Modules (FM): Total Percentages of Coarser Than #100 = 100 Cc= 1.8
Cu= 0.5
Total H²O:

Check for waste limt (0.3%) : 0.07%
Material:

Wt Ret: %Passing:

Project Address:

Date:

Project No.:

Project Name:

Tested By:

Borehole Number and Depth:

Min. Test Sample size in kg [lb] =
Nominal Max. Size in sample =
Nominal Dimension of seive =

0.00%

20.00%

40.00%

60.00%

80.00%
100.00%

Boring No: Project No:

Sample ID: Project Name:

Sample Depth: Project Address:

Material: Technician:
0 1 2 3 4 1 2 3
29 26 17 13
AB - 2 LB - 6 AE - 2 AD - 1 LB - 8 AC - 2 AD - 2

20.63 23.33 23.90 21.82 5.42 5.21 5.38

18.82 21.02 21.42 19.69 5.29 5.08 5.25

11.17 11.28 11.30 11.23 4.35 4.27 4.37

7.65 9.74 10.12 8.46 0.94 0.81 0.88

1.81 2.31 2.48 2.13 0.13 0.13 0.13

23.66% 23.72% 24.51% 25.18% 13.83% 16.05% 14.77%

20.00%

3.37 3.26 2.83 2.56
Group Symbol CL
-0.019136 0.3001706 25

0.0017126 0.0051777

0.9842326 0.0011079 23.9% Shrinkage Limit Results
Liquid Limit % 23.86
Plastic Limit % 14.88
Plasticity Index 8.97
Shrinkage Limit %
B – Value
Toughness Index
Tested By: Reviewed By:

Signature: Signature:

Net Dry Weight (gr)
Weight of Water (gr)
Water Content (%)
Nami A.F
No. of blows
Tare No.

Gross Wet Weight (gr)
Gross Dry Weight (gr)
Tare Weight (gr)
Liquid Limit Plastic Limit
2' - 3.5'
Alan
Cupertino
SOIL Nami
SOIL 2/28/2020
B1 4134
228204134

23.66%23.72%

24.51%

25.18%

23.9%
y = -0.019ln(x) + 0.3002

23.40%

23.60%

23.80%

24.00%

24.20%

24.40%

24.60%

24.80%

25.00%

25.20%

25.40%
10 100
WATER CONTENT (%)

NUMBER OF BLOWS
Flow curve
-

10.00 20.00

30.00 40.00

50.00 60.00
- 20.00 40.00 60.00 80.00 100.00
Plasticity Index (%)
Liquid Limit (%)
Plasticity chart
CH or OH
MH or OH
CL or OL
ML or OLCL - ML
|Form #L-21 | Date Prepared: | Rev #2| Revised: 05/26/2018| 2455 Autumnvale Drive, Unit E | San Jose, CA 95131| Tel: (408) 217-9174 | Fax: (408) 217-9632 www.achieveng.com 456
CC 02-01-2022
456 of 756
Atterberg Limits
(AASHTO T89 and T90 - ASTM D4318)
Sample Description: Report Date:

Boring No: Project No:

Sample ID: Project Name:

Sample Depth: Project Address:

Material: Technician:
0 1 2 3 4 1 2 3
35 31 28 24
AL - 2 AE - 3 AD - 2 LB - 1 L - 3 AC - 3 AE - 6

24.86 22.92 24.38 23.76 5.45 5.48 5.82

22.44 20.83 22.00 21.41 5.32 5.34 5.66

11.15 11.21 11.26 11.25 4.32 4.36 4.39

11.29 9.62 10.74 10.16 1 0.98 1.27

2.42 2.09 2.38 2.35 0.13 0.14 0.16

21.43% 21.73% 22.16% 23.13% 13.00% 14.29% 12.60%

20.00%

3.56 3.43 3.33 3.18
Group Symbol CL
-0.045344 0.3741577 25

0.0067981 0.0229623

0.9569798 0.0018818 22.8% Shrinkage Limit Results
Liquid Limit % 22.82
Plastic Limit % 13.29
Plasticity Index 9.53
Shrinkage Limit %
B – Value
Toughness Index
Tested By: Reviewed By:

Signature: Signature:

Plastic Limit
2' - 3.5'
Alan
Cupertino
SOIL Nami
SOIL 2/28/2020
B2 4134
22820 -4134
No. of blows
Tare No.

Gross Wet Weight (gr)
Gross Dry Weight (gr)
Tare Weight (gr)
Liquid Limit
Net Dry Weight (gr)
Weight of Water (gr)
Water Content (%)
Nami A.F

21.43%

21.73%

22.16%

23.13%

22.8%
y = -0.045ln(x) + 0.3742

21.00%

21.50%

22.00%

22.50%

23.00%

23.50%
10 100
WATER CONTENT (%)

NUMBER OF BLOWS
Flow curve
-

10.00 20.00

30.00 40.00

50.00 60.00
- 20.00 40.00 60.00 80.00 100.00
Plasticity Index (%)
Liquid Limit (%)
Plasticity chart
CH or OH
MH or OH
CL or OL
ML or OLCL - ML
|Form #L-21 | Date Prepared: | Rev #2| Revised: 05/26/2018| 2455 Autumnvale Drive, Unit E | San Jose, CA 95131| Tel: (408) 217-9174 | Fax: (408) 217-9632 www.achieveng.com 457
CC 02-01-2022
457 of 756
Exhibit III
Maps
458
CC 02-01-2022
458 of 756

MM/DD/YYYY REMARKS
0 02/29/2020
1 ___ / ___/___
2 ___ / ___/___
3 ___ / ___/___
4 ___ / ___/___
Project Number:
4134
01 M
Project Title:

Ali Mozaffari - 22690 Stevens Creek Blv –
Exhibit III

REVISIONS
Vicinity Map
22690 Stevens Creek
Boulevard, Cupertino, CA
459
CC 02-01-2022
459 of 756

MM/DD/YYYY REMARKS
0 02/29/2020
1 ___ / ___/___
2 ___ / ___/___
3 ___ / ___/___
4 ___ / ___/___
Project Number:
4134
02 M
Project Title:

Ali Mozaffari - 22690 Stevens Creek Blv –
Exhibit III

REVISIONS
Boring Location Map
460
CC 02-01-2022
460 of 756

MM/DD/YYYY REMARKS
0 02/29/2020
1 ___ / ___/___
2 ___ / ___/___
3 ___ / ___/___
4 ___ / ___/___
Project Number:
4134
03 M
Project Title:

Ali Mozaffari - 22690 Stevens Creek Blv –
Exhibit III

REVISIONS
Site Location on 7.5' quadrangle Series
Topographical Map by USGS
22690 Stevens Creek
Boulevard, Cupertino, CA
461
CC 02-01-2022
461 of 756

MM/DD/YYYY REMARKS
0 02/29/2020
1 ___ / ___/___
2 ___ / ___/___
3 ___ / ___/___
4 ___ / ___/___
Project Number:
4134
04 M
Project Title:

Ali Mozaffari - 22690 Stevens Creek Blv –
Exhibit III

REVISIONS
Site Location on 7.5' quadrangle Series
Geological Map by USGS
22690 Stevens Creek
Boulevard, Cupertino, CA
462
CC 02-01-2022
462 of 756

MM/DD/YYYY REMARKS
0 02/29/2020
1 ___ / ___/___
2 ___ / ___/___
3 ___ / ___/___
4 ___ / ___/___
Project Number:
4134
05 M
Project Title:

Ali Mozaffari - 22690 Stevens Creek Blv –
Exhibit III

REVISIONS
Site Location on State Map for Earthquake Zone of required investigation by CGS (site is NOT located within hazard zone) 22690 Stevens Creek
Boulevard, Cupertino, CA
463
CC 02-01-2022
463 of 756

MM/DD/YYYY REMARKS
0 02/29/2020
1 ___ / ___/___
2 ___ / ___/___
3 ___ / ___/___
4 ___ / ___/___
Project Number:
4134
06 M
Project Title:

Ali Mozaffari - 22690 Stevens Creek Blv –
Exhibit III

REVISIONS
Site Location on Fault Activity Map
of California (2010) by CGS
22690 Stevens Creek
Boulevard, Cupertino, CA
464
CC 02-01-2022
464 of 756

MM/DD/YYYY REMARKS
0 02/29/2020
1 ___ / ___/___
2 ___ / ___/___
3 ___ / ___/___
4 ___ / ___/___
Project Number:
4134
07 M
Project Title:

Ali Mozaffari - 22690 Stevens Creek Blv –
Exhibit III

REVISIONS
Site Location distance to Nears Faults
(10-mile Radius)
Fault Name and Distance to Project Site
1 Monte Vista-Shannon Fault System 0.5 Miles
2 Berrocal Faults 1.91 Miles
3 Cascade Fault 2.13 Miles
4 Stanford Fault 4 Miles
5 San Andreas Fault System 4.7 Miles
6 San Jose Fault 6.32 Miles
7 Pulgas Fault 7.29 Miles
8 Butano Fault 8.45 Miles
465
CC 02-01-2022
465 of 756

MM/DD/YYYY REMARKS
0 02/29/2020
1 ___ / ___/___
2 ___ / ___/___
3 ___ / ___/___
4 ___ / ___/___
Project Number:
4134
08 M
Project Title:

Ali Mozaffari - 22690 Stevens Creek Blv –
Exhibit III

REVISIONS
Project Location on Landslide Susceptibility Map (Source USGS) site is within Class 0 – No Susceptibility
22690 Stevens Creek
Boulevard, Cupertino, CA
466
CC 02-01-2022
466 of 756

Exhibit IV
USGS Seismic Design

467
CC 02-01-2022
467 of 756
2/13/2020 U.S. Seismic Design Maps
https://seismicmaps.org 1/2
4134
22690 Stevens Creek Blvd, Cupertino, CA 95014, USA
Latitude, Longitude: 37.3217554, -122.068922
Date 2/13/2020, 2:11:29 PM
Design Code Reference Document ASCE7-16
Risk Category II
Site Class D - Stiff Soil
Type Value Description
SS 2.281 MCER ground motion. (for 0.2 second period)
S1 0.821 MCER ground motion. (for 1.0s period)
SMS 2.281 Site-modified spectral acceleration value
SM1 null -See Section 11.4.8 Site-modified spectral acceleration value SDS 1.521 Numeric seismic design value at 0.2 second SA SD1 null -See Section 11.4.8 Numeric seismic design value at 1.0 second SA Type Value Description
SDC null -See Section 11.4.8 Seismic design category
Fa 1 Site amplification factor at 0.2 second
Fv null -See Section 11.4.8 Site amplification factor at 1.0 second PGA 0.943 MCEG peak ground acceleration
FPGA 1.1 Site amplification factor at PGA
PGAM 1.037 Site modified peak ground acceleration
TL 12 Long-period transition period in seconds
SsRT 2.335 Probabilistic risk-targeted ground motion. (0.2 second) SsUH 2.573 Factored uniform-hazard (2% probability of exceedance in 50 years) spectral acceleration SsD 2.281 Factored deterministic acceleration value. (0.2 second) S1RT 0.941 Probabilistic risk-targeted ground motion. (1.0 second) S1UH 1.054 Factored uniform-hazard (2% probability of exceedance in 50 years) spectral acceleration.

S1D 0.821 Factored deterministic acceleration value. (1.0 second) PGAd 0.943 Factored deterministic acceleration value. (Peak Ground Acceleration) CRS 0.907 Mapped value of the risk coefficient at short periods CR1 0.893 Mapped value of the risk coefficient at a period of 1 s 468
CC 02-01-2022
468 of 756

Exhibit V
Shallow Footing Design

469
CC 02-01-2022
469 of 756

0 500
1000
1500
2000
2500
3000
3500
4000
4500
5000
0 2 4 6 8 10 12
q (psf)
B (ft)
Strip Footing
0 0.2

0.4 0.6

0.8 1

1.2 0 2 4 6 8 10 12
settlement (in)
B (ft)
Strip Footing
470
CC 02-01-2022
470 of 756

Address: 2455 Autumnvale Drive, Unit E, San Jose, CA 95131, Tel: (408) 217-9174, Fax: (408) 217-9632 www.achieveng.com

Form #: R-15, V-Ι, C-ΙΙ, S-8 Date Prepared: 7/29/2014 Revision No.: 1 Revised: 11/26/2014

Project Number: 4134
Date: March 25, 2020

Mr. Ali Mozaffari
22690 Stevens Creek
Cupertino, CA 95014

Subject: Addendum to Geotechnical Report
(Pavement Design) for the New Development at
22690 Stevens Creek
Cupertino,
CA 95014
APN#342-14-104
Dear Sir,
In response to your inquiry, and your authorization, the following professional services were provided:

 Two sets of CBR test (ASTM D1383) have been performed on selected samples collected from the site (Please refer to the attached test results).  Recommendations for pavement design and pedestrian concrete sidewalk.

Pavement Design and Pedestrian Rigid Concrete Sidewalk
Recommendations

As previously discussed , two sets of CBR tests (per ASTM D1383) have been performed for two surficial samples collected from the Site. California Bearing Ratio (CBR) test results indicated that near surface soils have an average CBR value of approximately 1.4 that is classified as poor subgrade per Reference 1. Based on the correlations between CBR and MR (Resilient Modulus) per Reference 2, the corresponding MR and California R-Value for the surficial soil at the Site are 2025 psi and 3, respectively. The soil classification test shows the surface soil of the site is SC / CL, in Unified Soil Classification System.

Subgrade Preparation

Remove all debris, large rocks, vegetation and topsoil from the area to be paved. These items either do not compact well or cause non-uniform compaction and mat thickness.

It is recommended that the poor soil undergo subgrade treatment or replacement before placing aggregate and asphalt. For more information on subgrade treatments refer to Chapter 4.0 of Reference

1. 471
CC 02-01-2022
471 of 756

Address: 2455 Autumnvale Drive, Unit E, San Jose, CA 95131, Tel: (408) 217-9174, Fax: (408) 217-9632 www.achieveng.com

Form #: R-15, V-Ι, C-ΙΙ, S-8 Date Prepared: 7/29/2014 Revision No.: 1 Revised: 11/26/2014

The subgrade should be compacted to a minimum of 95 percent of the maximum dry density as determined by ASTM D1557 to ensure the compacted subgrade is able to support construction traffic.

If the subgrade ruts excessively under construction traffic, it should be repaired before being paved over. Left unrepaired subgrade ruts may reflectively cause premature pavement rutting.

It is recommended that a representative from our firm be present at the site and observe the integrity of the subgrade during the construction. In case the poor soil is present or unsuitable materials are encountered as predicted, the subgrade may require stabilization (such as lime treatment), over -
excavation (and replacing the unsuitable soil with gravel borrows) and adding a base course and perhaps a subbase course over the subgrade, that proper methods will be recommended if needed during construction observation.

After final grading (often called fine-grading), the subgrade elevation should generally conform closely to the construction plan subgrade elevation. Large elevation discrepancies should not be compensated for by varying pavement or base thickness because hot mix asphalt (HMA) and aggregates
are more expensive than subgrade.

Rigid Concrete Pavement Recommendation for a TI (Traffic Index) below 9

Utilizing the Reference 3 rigid pavement catalog decision tree, the site surface soil is classified as Type II of subgrade and the Site is located in Caltrans Pavement Climate Region of Central Coast.

Thus, the recommended rigid pavement structural depth for TI ≤ 9, with lateral support is 0.70 ft. doweled JPCP (Jointed Plain Concrete Pavement) or 1.00 ft. AB (Class 2 Aggregate Base) and for the case without lateral support is 0.75 ft. doweled JPCP or 1.00 ft. AB and the (Table 623.1E, Reference 3).

AC (Asphalt Concrete) pavement recommendations for a TI of 5, 6 and 7

Considerations regarding worker safety, short construction windows, or the amount of area to be paved may make it desirable to reduce the total thickness of the pavement by placing full depth hot mix asphalt (HMA). Also, full depth hot mix asphalt is less affected by moisture or frost, does not allow moisture build up in the subgrade
, provides no permeable layers that entrap water, and has a more uniform pavement structure. In this step of design, assuming a full depth HMA for pavement and using the Reference 3, the recommendation for AC pavement structural depth has been summarized in the table below.

472
CC 02-01-2022
472 of 756

Address: 2455 Autumnvale Drive, Unit E, San Jose, CA 95131, Tel: (408) 217-9174, Fax: (408) 217-9632 www.achieveng.com

Form #: R-15, V-Ι, C-ΙΙ, S-8 Date Prepared: 7/29/2014 Revision No.: 1 Revised: 11/26/2014

Table 1- Recommended AC pavement structural depth

TI GE
1(ft.)
HMA Thickness (ft.)
5 1.6 0.60
6 2.0 0.75
7 2.3 0.90
1) Gravel Equivalent in ft.

Proper mix of AC with Performance Grade for climate region of Central Coast can be used for full depth pavement (please refer to Table 632.1 of Reference 3).

Please note that the thicknesses determined and outlined in this section, are not intended to preclude other combinations and thicknesses of materials. Adjustments to the thickness of the various materials may be made to accommodate construction restrictions or practices, and minimize costs, provided the minimum thicknesses, maximum thicknesses, and minimum GE requirements (including safety factors) of the entire pavement structure and each layer are as specified and the contractor can modify
them based on credible references as the project progresses and more data will be available (Per Reference 3).

It is our pleasure to provide you our professional services. If you have any question or need any additional information, please do not hesitate
to call us at your convenience.

Sincerely Yours,
Sadaf M. Safaai P.E.

State of California Licensed Civil Engineer

Reference
1 - Asphalt Paving Design Guide, Asphalt Pavement Association of Oregon, Revised October 2003.
2- FHWA, Geotechnical Aspects of Pavements Reference Manual / Participant Workbook, Publication No. FHWA NHI-05
-037, May 2006.
3- California Department of Transportation, Highway Design Manual, Sixth Edition, 2017. 473
CC 02-01-2022
473 of 756
CBR
Test Result

Alan
Enterprise LLc
# 4134
474
CC 02-01-2022
474 of 756

C B R 1

475
CC 02-01-2022
475 of 756
California Bearing Ratio (CBR)
ASTM: D 1883 - AASHTO: T193-99
3/23/2020 AEC Project#:

Alan Enterprise Sample No.:

Page #: 1
Date Prepared: 02/11/2019 Revision No: 1 Revised: 04/06/2019Form#: L-50 12 Dry Density, (Lbs/C.F) 126.72
NamiTested by (Name / Initial): Signature:NH
Water Content Data
10 4.59
0 0.022

0.022
Final Dial Gauge Reading, (in)
After SoakingBefore SoakingCondition of specimen
Density Data
6 Wt. of Sample, (Lb)
032320 - 4134 - L50 - NH
Cupertino
Report Date:
*Client:

Report ID:
*Project Address:
4134
CBR1-1
Surcharge Weight, (Lb) Expansion Ratio (ER):

25.848 25.951Wt. of Compacted Sample,
Mold and Base Plate, (Lb)
Wt. of Mold and Base Plate, (Lb) 15.83

10.018
Height of Speciment, (in3) 4.59
Vol. of Specimen, (in3)
Moisture Content, (%)
Gross wet weight
Gross Dry Weight
Tare No
Expansion Ratio Determination
Sample Condition:

Initial Dial Gauge Reading, (in)
Difference, (in)
Initial Height of Specimen, (in)
Sample No CBR1-1
Net Dry weight
Weight of Water
Tare Weight
Moisture (%)
After Soakingbefore Soaking
CA - 19
589.15
562.13
336.93
225.2

27.02 12
Remark:

𝐸𝑅 = 0.022

4.59 = 0.479
2455 Autumnvale Drive, Unit E, San Jose, CA 95131, Tel: (408) 217-9174, Fax: (408) 217-9632 / www.achieveng.com 476
CC 02-01-2022
476 of 756
California Bearing Ratio (CBR)
ASTM: D 1883 - AASHTO: T193-99
3/23/2020 AEC Project#:

Alan Enterprise Sample No.:

Page #: 2
Date Prepared: 02/11/2019 Revision No: 1 Revised: 04/06/2019Form#: L-50 12 Dry Density, (Lbs/C.F) 126.72
NamiTested by (Name / Initial): Signature:NH
Water Content Data
10 4.59
0 0.022

0.022
Final Dial Gauge Reading, (in)
After SoakingBefore SoakingCondition of specimen
Density Data
6 Wt. of Sample, (Lb)
032320 - 4134 - L50 - NH
Cupertino
Report Date:
*Client:

Report ID:
*Project Address:
4134
CBR1-2
Surcharge Weight, (Lb) Expansion Ratio (ER):

26.019 25.951Wt. of Compacted Sample,
Mold and Base Plate, (Lb)
Wt. of Mold and Base Plate, (Lb) 15.866

10.153
Height of Speciment, (in3) 4.59
Vol. of Specimen, (in3)
Moisture Content, (%)
Gross wet weight
Gross Dry Weight
Tare No
Expansion Ratio Determination
Sample Condition:

Initial Dial Gauge Reading, (in)
Difference, (in)
Initial Height of Specimen, (in)
Sample No CBR1-2
Net Dry weight
Weight of Water
Tare Weight
Moisture (%)
After Soakingbefore Soaking
CA - 22
535.63
514.41
336.73
177.68

21.22 12
Remark:

𝐸𝑅 = 0.022

4.59 = 0.479
2455 Autumnvale Drive, Unit E, San Jose, CA 95131, Tel: (408) 217-9174, Fax: (408) 217-9632 / www.achieveng.com 477
CC 02-01-2022
477 of 756
California Bearing Ratio (CBR)
ASTM: D 1883 - AASHTO: T193-99
3/23/2020 AEC Project#:

Alan Enterprise Sample No.:

Page #: 3
Date Prepared: 02/11/2019 Revision No: 1 Revised: 04/06/2019Form#: L-50 12 Dry Density, (Lbs/C.F) 126.72
NamiTested by (Name / Initial): Signature:NH
Water Content Data
10 4.59
0 0.022

0.022
Final Dial Gauge Reading, (in)
After SoakingBefore SoakingCondition of specimen
Density Data
6 Wt. of Sample, (Lb)
032320 - 4134 - L50 - NH
Cupertino
Report Date:
*Client:

Report ID:
*Project Address:
4134
CBR1-3
Surcharge Weight, (Lb) Expansion Ratio (ER):

25.949 26.028Wt. of Compacted Sample,
Mold and Base Plate, (Lb)
Wt. of Mold and Base Plate, (Lb) 15.792

10.157
Height of Speciment, (in3) 4.59
Vol. of Specimen, (in3)
Moisture Content, (%)
Gross wet weight
Gross Dry Weight
Tare No
Expansion Ratio Determination
Sample Condition:

Initial Dial Gauge Reading, (in)
Difference, (in)
Initial Height of Specimen, (in)
Sample No CBR1-3
Net Dry weight
Weight of Water
Tare Weight
Moisture (%)
After Soakingbefore Soaking
CA - 21
526.28
505.99
337.93
168.06

20.29 12
Remark:

𝐸𝑅 = 0.022

4.59 = 0.479
2455 Autumnvale Drive, Unit E, San Jose, CA 95131, Tel: (408) 217-9174, Fax: (408) 217-9632 / www.achieveng.com 478
CC 02-01-2022
478 of 756

ELE International Page 1 of 2 California Bearing Ratio of Laboratory
Compacted Soils (CBR)

Client AEC Lab Ref
Project Alan Enterprise LLC Job 4134
Borehole CBR1-1 Sample CBR1-1

Test Details
Standard ASTM D1883-99 / AASHTO T193-98
Sample Type Bulk disturbed sample
Sample Description Silty Sand
Location Cupertino
Variations from Procedure None

Specimen & Equipment Details
Specimen Reference A Method of Sample
Preparation
ASTM D 1883
Diameter 6.0000 in
Height 4.5900 in
Dry Density before Soak 1.91 lb/ft3 Dry Density after Soak 1.91 lb/ft3 Surcharge Weight 10.0000 lb Comments
Moisture Content
Before Compaction 1.00 % After Compaction 12.00 %
Top 1” Layer after penetration 0.00 % Average after soak 13.15 %

Soaking Details
Soaking Time 96.00 hrs
Sample Weight after Soaking 10.1210 lb
Soaking Travel 0.0220 in
Swell 0.48 %

Tested By
and Date:

Nami 03/23/20
Checked By
and Date:

A.F 03/23/20
Approved By
and Date:

S.H 03/236/20

479
CC 02-01-2022
479 of 756

ELE International Page 2 of 2 California Bearing Ratio of Laboratory
Compacted Soils (CBR)

Client AEC Lab Ref
Project Alan Enterprise LLC Job 4134
Borehole CBR1-1 Sample CBR1-1

480
CC 02-01-2022
480 of 756

ELE International Page 1 of 2 California Bearing Ratio of Laboratory
Compacted Soils (CBR)

Client AEC Lab Ref
Project Alan Enterprise LLC Job 4134
Borehole CBR1 Sample CBR1-2

Test Details
Standard ASTM D1883-99 / AASHTO T193-98
Sample Type Bulk disturbed sample
Sample Description Silty Sand
Location Cupertino
Variations from Procedure None

Specimen & Equipment Details
Specimen Reference B Method of Sample
Preparation
ASTM D 1883
Diameter 6.0000 in
Height 4.5900 in
Dry Density before Soak 1.93 lb/ft3 Dry Density after Soak 1.93 lb/ft3 Surcharge Weight 1.0000 lb Comments
Moisture Content
Before Compaction 1.00 % After Compaction 12.00 %
Top 1” Layer after penetration 0.00 % Average after soak 12.88 %

Soaking Details
Soaking Time 96.00 hrs
Sample Weight after Soaking 10.2330 lb
Soaking Travel 0.0220 in
Swell 0.48 %

Tested By
and Date:

Nami 03/23/2020
Checked By
and Date:

A.F 03/23/2020
Approved By
and Date:

S.H 03/23/2020

481
CC 02-01-2022
481 of 756

ELE International Page 2 of 2 California Bearing Ratio of Laboratory
Compacted Soils (CBR)

Client AEC Lab Ref
Project Alan Enterprise LLC Job 4134
Borehole CBR1 Sample CBR1-2

482
CC 02-01-2022
482 of 756

ELE International Page 1 of 2 California Bearing Ratio of Laboratory
Compacted Soils (CBR)

Client AEC Lab Ref
Project Alan Enterprise LLC Job 4134
Borehole CBR1 Sample CBR1-3

Test Details
Standard ASTM D1883-99 / AASHTO T193-98
Sample Type Bulk disturbed sample
Sample Description Silty Sand
Location Cupertino
Variations from Procedure None

Specimen & Equipment Details
Specimen Reference C Method of Sample
Preparation
ASTM D 1883
Diameter 6.0000 in
Height 4.5900 in
Dry Density before Soak 1.93 lb/ft3 Dry Density after Soak 1.93 lb/ft3 Surcharge Weight 10.0000 lb Comments
Moisture Content
Before Compaction 1.00 % After Compaction 12.00 %
Top 1” Layer after penetration 0.00 % Average after soak 12.87 %

Soaking Details
Soaking Time 96.00 hrs
Sample Weight after Soaking 10.2360 lb
Soaking Travel 0.0220 in
Swell 0.48 %

Tested By
and Date:

Nami 03/23/2020
Checked By
and Date:

A.F 03/23/2020
Approved By
and Date:

S.H 03/23/2020

483
CC 02-01-2022
483 of 756

ELE International Page 2 of 2 California Bearing Ratio of Laboratory
Compacted Soils (CBR)

Client AEC Lab Ref
Project Alan Enterprise LLC Job 4134
Borehole CBR1 Sample CBR1-3

484
CC 02-01-2022
484 of 756
LABORATORY COMPACTION (Modified)
(ASTM D1557)
3/10/2020
4134
Sample #: Alan Enterprise LLC
Sample ID: 22690 Stevens Creek BLVD, Cupertino
Curve No. GIVO

Page 1 of 2 ends

Silty Sand
3/10/2020
1 2 3 4
10163.1 10431.5 10709.8 10474.9
5905.7 5905.7 5905.7 5905.7
125.31 133.21 141.40 134.49
H-19 AE-9 H-25 H-30
126 125.6 127.5 127.3
457.8 442.3 389.9 456.2
438.12 416.95 362.65 413.46

19.68 25.35 27.25 42.74
312.12 291.35 235.15 286.16

6.31 8.70 11.59 14.94
117.88 122.55 126.72 117.01
126.72
12%
Weight Class A B C D Bulk Mass (lbs): 1015.3
Weight (lbs) 687.9 54.3 36.6 236.5
Percentage (%) 0.678 0.053 0.036 0.233
No Rammer Type: Mechanical
No
No
No
YES
No
Tested By: Reviewed By:

Signature: Signature:
#4 3/8" 3/4"
Method A:

Soil Compaction Data:
#REF!GIVO
Moisture Content %
Dry Unit Weight (pcf)
Weight of Mold (gr)
Wet Unit Weight (pcf)
Tare Number
Weight of Wet Soil & Tare (gr)
Weight of Dry Soil & Tare (gr)
Maximum Dry Density (Lbs/C.F):

List of Methods
1 Source:

Soil
FIELD
Type of Material:

Optimum Mositure (%):

Weight of Wet Soil & Mold (gr)
Weight of Water (gr)
Weight of Tare (gr)
Weight of Dry Soil (gr)
Page #:

Compaction Sample No.

Sample Date:

Report Date:

Project No:

Project Name:

Project Address:

Technician
Material Description:

Sampled by: MOBIN
CBR1
03102020 - 4134 - Soil - CBR1
Method A w/ Correction OR Method B:

Method B:

Method B w/ Correction OR Method C:

Method C:

Project No:

Project Name:

Project Address:

Technician:

Type of Material:

Source:

Sampled by: Sample Date:

Sample No: CBR1-1 CBR1-2 CBR1-3
Ht. of Sample: Disturbed Disturbed Disturbed
Tare No: CA - 19 CA - 22 CA - 21
Gross Wet Wt: 589.15 535.63 526.28
Gross Dry Wt: 562.13 514.41 505.99
Tare Wt: 336.93 336.73 337.93
Net Dry Wt: 225.20 177.68 168.06
Wt. of Water: 27.02 21.22 20.29
% Moisture 12% 12% 12%
Liners Dia
Density Factors
Dry Density
Tested By: Reviewed By:

Signature: Signature:

Sample Description:

C B R 2

487
CC 02-01-2022
487 of 756
California Bearing Ratio (CBR)
ASTM: D 1883 - AASHTO: T193-99
3/23/2020 AEC Project#:

Alan Enterprise Sample No.:

Page #: 4
Moisture (%)
After Soakingbefore Soaking
CA - 3
861.22
811.47
342.2
469.27

49.75 11
Remark:

Net Dry weight
Weight of Water
Tare Weight
Gross wet weight
Gross Dry Weight
Tare No
Expansion Ratio Determination
Sample Condition:

Initial Dial Gauge Reading, (in)
Difference, (in)
Initial Height of Specimen, (in)
Sample No CBR2-1
Surcharge Weight, (Lb) Expansion Ratio (ER):

24.947 25.509Wt. of Compacted Sample,
Mold and Base Plate, (Lb)
Wt. of Mold and Base Plate, (Lb) 15.822

9.125
Height of Speciment, (in3) 4.59
Vol. of Specimen, (in3)
Moisture Content, (%)
032320 - 4134 - L50 - NH
Cupertino
Report Date:
*Client:

Report ID:
*Project Address:
4134
CBR2-1
After SoakingBefore SoakingCondition of specimen
Density Data
6 Wt. of Sample, (Lb)
11 Dry Density, (Lbs/C.F) 123.99
NamiTested by (Name / Initial): Signature:NH
Water Content Data
10 4.59
0 0.048

0.048
Final Dial Gauge Reading, (in)
Date Prepared: 02/11/2019 Revision No: 1 Revised: 04/06/2019Form#: L-50 𝐸𝑅 = 0.048

4.59 = 1.045
2455 Autumnvale Drive, Unit E, San Jose, CA 95131, Tel: (408) 217-9174, Fax: (408) 217-9632 / www.achieveng.com 488
CC 02-01-2022
488 of 756
California Bearing Ratio (CBR)
ASTM: D 1883 - AASHTO: T193-99
3/23/2020 AEC Project#:

Alan Enterprise Sample No.:

Page #: 5
Moisture (%)
After Soakingbefore Soaking
CA - 4
525.94
506.92
336.3
170.62

19.02 11
Remark:

Net Dry weight
Weight of Water
Tare Weight
Gross wet weight
Gross Dry Weight
Tare No
Expansion Ratio Determination
Sample Condition:

Initial Dial Gauge Reading, (in)
Difference, (in)
Initial Height of Specimen, (in)
Sample No CBR2-2
Surcharge Weight, (Lb) Expansion Ratio (ER):

27.418 27.697Wt. of Compacted Sample,
Mold and Base Plate, (Lb)
Wt. of Mold and Base Plate, (Lb) 17.558

9.86 Height of Speciment, (in3) 4.59
Vol. of Specimen, (in3)
Moisture Content, (%)
032320 - 4134 - L50 - NH
Cupertino
Report Date:
*Client:

0.048
Final Dial Gauge Reading, (in)
Date Prepared: 02/11/2019 Revision No: 1 Revised: 04/06/2019Form#: L-50 𝐸𝑅 = 0.048

4.59 = 1.045
2455 Autumnvale Drive, Unit E, San Jose, CA 95131, Tel: (408) 217-9174, Fax: (408) 217-9632 / www.achieveng.com 489
CC 02-01-2022
489 of 756
California Bearing Ratio (CBR)
ASTM: D 1883 - AASHTO: T193-99
3/23/2020 AEC Project#:

Alan Enterprise Sample No.:

Page #: 6
Date Prepared: 02/11/2019 Revision No: 1 Revised: 04/06/2019Form#: L-50 11 Dry Density, (Lbs/C.F) 123.99
NamiTested by (Name / Initial): Signature:NH
Water Content Data
10 4.59
0 0.048

0.048
Final Dial Gauge Reading, (in)
After SoakingBefore SoakingCondition of specimen
Density Data
6 Wt. of Sample, (Lb)
032320 - 4134 - L50 - NH
Cupertino
Report Date:
*Client:

Report ID:
*Project Address:
4134
CBR2-1
Surcharge Weight, (Lb) Expansion Ratio (ER):

27.798 27.969Wt. of Compacted Sample,
Mold and Base Plate, (Lb)
Wt. of Mold and Base Plate, (Lb) 17.696

10.102
Height of Speciment, (in3) 4.59
Vol. of Specimen, (in3)
Moisture Content, (%)
Gross wet weight
Gross Dry Weight
Tare No
Expansion Ratio Determination
Sample Condition:

Initial Dial Gauge Reading, (in)
Difference, (in)
Initial Height of Specimen, (in)
Sample No CBR2-3
Net Dry weight
Weight of Water
Tare Weight
Moisture (%)
After Soakingbefore Soaking
CA - 5
416.63
408.8
337.02

71.78 7.83
11 Remark:

𝐸𝑅 = 0.048

4.59 = 1.045
2455 Autumnvale Drive, Unit E, San Jose, CA 95131, Tel: (408) 217-9174, Fax: (408) 217-9632 / www.achieveng.com 490
CC 02-01-2022
490 of 756

ELE International Page 1 of 2 California Bearing Ratio of Laboratory
Compacted Soils (CBR)

Client AEC Lab Ref
Project Alan Enterprise LLC Job 4134
Borehole CBR2 Sample CBR2-1

Test Details
Standard ASTM D1883-99 / AASHTO T193-98
Sample Type Bulk disturbed sample
Sample Description Silty Sand
Location Cupertino
Variations from Procedure None

Specimen & Equipment Details
Specimen Reference A Method of Sample
Preparation
ASTM D 1883
Diameter 6.0000 in
Height 4.5900 in
Dry Density before Soak 1.75 lb/ft3 Dry Density after Soak 1.75 lb/ft3 Surcharge Weight 10.0000 lb Comments
Moisture Content
Before Compaction 1.00 % After Compaction 11.00 %
Top 1” Layer after penetration 0.00 % Average after soak 17.84 %

Soaking Details
Soaking Time 96.00 hrs
Sample Weight after Soaking 9.6870 lb
Soaking Travel 0.0480 in
Swell 1.05 %

Tested By
and Date:

Nami 03/23/2020
Checked By
and Date:

A.F 03/23/2020
Approved By
and Date:

S.H 03/23/2020

491
CC 02-01-2022
491 of 756

ELE International Page 2 of 2 California Bearing Ratio of Laboratory
Compacted Soils (CBR)

Client AEC Lab Ref
Project Alan Enterprise LLC Job 4134
Borehole CBR2 Sample CBR2-1

492
CC 02-01-2022
492 of 756

ELE International Page 1 of 2 California Bearing Ratio of Laboratory
Compacted Soils (CBR)

Client AEC Lab Ref
Project Alan Enterprise LLC Job 4134
Borehole CBR2 Sample CBR2-2

Test Details
Standard ASTM D1883-99 / AASHTO T193-98
Sample Type Bulk disturbed sample
Sample Description Silty Sand
Location Cupertino
Variations from Procedure None

Specimen & Equipment Details
Specimen Reference B Method of Sample
Preparation
ASTM D 1883
Diameter 6.0000 in
Height 4.5900 in
Dry Density before Soak 1.89 lb/ft3 Dry Density after Soak 1.89 lb/ft3 Surcharge Weight 10.0000 lb Comments
Moisture Content
Before Compaction 1.00 % After Compaction 11.00 %
Top 1” Layer after penetration 0.00 % Average after soak 14.14 %

Soaking Details
Soaking Time 96.00 hrs
Sample Weight after Soaking 10.1390 lb
Soaking Travel 0.0480 in
Swell 1.05 %

Tested By
and Date:

Nami 03/23/2020
Checked By
and Date:

A.F 03/23/2020
Approved By
and Date:

S.H 03/23/2020

493
CC 02-01-2022
493 of 756

ELE International Page 2 of 2 California Bearing Ratio of Laboratory
Compacted Soils (CBR)

Client AEC Lab Ref
Project Alan Enterprise LLC Job 4134
Borehole CBR2 Sample CBR2-2

494
CC 02-01-2022
494 of 756

ELE International Page 1 of 2 California Bearing Ratio of Laboratory
Compacted Soils (CBR)

Client AEC Lab Ref
Project Alan Enterprise LLC Job 4134
Borehole CBR2 Sample CBR2-3

Test Details
Standard ASTM D1883-99 / AASHTO T193-98
Sample Type Bulk disturbed sample
Sample Description Silty Sand
Location Cupertino
Variations from Procedure None

Specimen & Equipment Details
Specimen Reference C Method of Sample
Preparation
ASTM D 1883
Diameter 6.0000 in
Height 4.5900 in
Dry Density before Soak 1.94 lb/ft3 Dry Density after Soak 1.94 lb/ft3 Surcharge Weight 10.0000 lb Comments
Moisture Content
Before Compaction 1.00 % After Compaction 11.00 %
Top 1” Layer after penetration 0.00 % Average after soak 12.88 %

Soaking Details
Soaking Time 96.00 hrs
Sample Weight after Soaking 10.2730 lb
Soaking Travel 0.0480 in
Swell 1.05 %

Tested By
and Date:

Nami 03/23/2020
Checked By
and Date:

A.F 03/23/2020
Approved By
and Date:

S.H 03/23/2020

495
CC 02-01-2022
495 of 756

ELE International Page 2 of 2 California Bearing Ratio of Laboratory
Compacted Soils (CBR)

Client AEC Lab Ref
Project Alan Enterprise LLC Job 4134
Borehole CBR2 Sample CBR2-3

496
CC 02-01-2022
496 of 756
LABORATORY COMPACTION (Modified)
(ASTM D1557)
3/10/2020
4134
Sample #: Alan Enterprise LLC
Sample ID: 22690 Stevens Creek BLVD, Cupertino
Curve No. GIVO

Page 1 of 2 ends

Silty Sand
3/10/2020
1 2 3 4
10206.8 10503.3 10591.2 10310.9
5905.7 5905.7 5905.7 5905.7
126.60 135.32 137.91 129.66
A-7 AE-21 H-31 H-8
134.2 126.3 127.9 129.5
451.4 453.8 433.5 444.4
431.75 425.35 400.95 402.1

19.65 28.45 32.55 42.3
297.55 299.05 273.05 272.6

6.60 9.51 11.92 15.52
118.75 123.57 123.22 112.24
123.99
11%
Weight Class A B C D Bulk Mass (lbs): 1058.7
Weight (lbs) 756.3 37.5 45.6 219.3
Percentage (%) 0.714 0.035 0.043 0.207
No Rammer Type: Mechanical
No
No
No
YES
No
Tested By: Reviewed By:

Signature: Signature:

Method A w/ Correction OR Method B:

Method B:

Method B w/ Correction OR Method C:

Method C:

Not Applicable:

Page #:

Compaction Sample No.

Sample Date:

Report Date:

Project No:

Project Name:

Project Address:

Technician
Material Description:

Sampled by: MOBIN
CBR2
03102020 - 4134 - Soil - CBR2
Optimum Mositure (%):

Weight of Wet Soil & Mold (gr)
Weight of Water (gr)
Weight of Tare (gr)
Weight of Dry Soil (gr)
2 Source:

Soil
FIELD
Type of Material:
#4 3/8" 3/4"
Method A:

Project No:

Project Name:

Project Address:

Technician:

Type of Material:

Source:

Sampled by: Sample Date:

Sample No: CBR2 - 1 CBR2 - 2 CBR2 - 3
Ht. of Sample: Disturbed Disturbed Disturbed
Tare No: CA - 3 CA - 4 CA - 5
Gross Wet Wt: 861.22 525.94 416.63
Gross Dry Wt: 811.47 506.92 408.80
Tare Wt: 342.20 336.30 337.02
Net Dry Wt: 469.27 170.62 71.78
Wt. of Water: 49.75 19.02 7.83
% Moisture 11% 11% 11%
Liners Dia
Density Factors
Dry Density
Tested By: Reviewed By:

Signature: Signature:
3/23/2020
4134
Alan Enterprise LLC
Cupertino
Nami
Soil Sample Description:

A PPENDIX D :

P HASE I E NVIRONMENTAL S ITE

A SSESSMENT
500
CC 02-01-2022
500 of 756
........................................................................................................................

501
CC 02-01-2022
501 of 756

Achievement Engineering Corp.

July 29, 2019

Alan Enterprise LLC.

Mr. Ali Mozafari

Reference: Phase I Environmental Site Assessment Report for 22690 Stevens Creek Boulevard,
Cupertino, California 95014
(Three parcels with APNs 342-14-04, 342-14-05, and 342-14-66) AEC Project No. 3940

Dear Mr. Mozafari:

Achievement Engineering Corp. (AEC) is pleased to submit this report of Phase I Environmental Site Assessment (ESA) for the above-referenced project. This report presents a review of the information collected through historical research and our site visit (including interviews) and a summary of our professional judgment based on the information available.

We appreciate the opportunity to be of service to you on this project and would be happy to discuss our findings with you. We look forward to serving as your environmental/geotechnical engineer on your future projects.

Respectfully,

ACHIEVEMENT ENGINEERING CORP.

Sadaf Safaai, PE
Project Engineer

Copies: Mr. Ali Mozafari
502
CC 02-01-2022
502 of 756
AEC Project No. 3940
July 29, 2019

TABLE OF CONTENTS

1- EXECUTIVE SUMMARY ................................................................................................. 2 2- PURPOSE ....................................................................................................................... 5 3- METHODOLOGY USED ................................................................................................. 6 4- REGULATORY REVIEW ................................................................................................ 8 Standard Environmental Records Reviewed. ............................................................... 8 Surrounding Sites Search results ................................................................................ 9 4-2-1- Federal CERCLIS NFRAP: ................................................................................... 9 4-2-2- State- and tribal - equivalent CERCLIS ................................................................. 9 4-2-3- State and tribal leaking storage tank lists .............................................................10 4-2-4- State and tribal registered storage tank lists ........................................................11 4-2-5- State and tribal voluntary cleanup sites ................................................................12 4-2-6- Local Lists of Hazardous waste / Contaminated Sites ..........................................12 4-2-7- Local Lists of Registered Storage Tanks ..............................................................13 4-2-8- Other Ascertainable Records ...............................................................................14 4-2-9- EDR HIGH RISK HISTORICAL RECORDS .........................................................16 4-2-10- Unmapped addresses ......................................................................................17 OTHER REGULATORY INFORMATION ....................................................................17 FREEDOM OF INFORMATION ACT (FOIA) REQUEST ............................................17 5- PHYSICAL SETTING .....................................................................................................18 TOPOGRAPHY ..........................................................................................................18 SOILS .........................................................................................................................18 FLOOD PLAIN INFORMATION ..................................................................................18 GEOLOGY .................................................................................................................18 SURFACE WATER/GROUND WATER HYDROLOGY ...............................................19 6- HISTORICAL REVIEW ..................................................................................................20 PRESENT OWNER ....................................................................................................20 AERIAL PHOTOGRAPHS ..........................................................................................20 HISTORICAL MAPS ...................................................................................................20 HISTORICAL CHAIN OF TITLE REPORT ..................................................................20 ZONING AND LAND USE RECORDS ........................................................................20 7- SITE RECONNAISSANCE .............................................................................................21 HAZARDOUS SUBSTANCES AND CONTAINERS ...................................................21 FACILITY STORAGE TANKS .....................................................................................21 SOLID WASTE GENERATION AND DISPOSAL ........................................................21 STORM WATER AND WASTE WATER SYSTEMS ...................................................21 503
CC 02-01-2022
503 of 756
AEC Project No. 3940
July 29, 2019

SURFACE AREAS .....................................................................................................21 AREA RECONNAISSANCE .......................................................................................22 8- ADDITIONAL ENVIRONMENTAL CONCERNS ............................................................23 WETLANDS ...............................................................................................................23 AIR EMISSIONS .........................................................................................................23 9- FINDINGS AND CONCLUSIONS ..................................................................................24 10- LIMITATIONS ................................................................................................................27

APPENDIX A ! EDR REPORT
APPENDIX B ! TOPOGRAPHIC MAPS
APPENDIX C ! AERIAL PHOTOGRAPHS
APPENDIX D ! SANBORN MAPS
APPENDIX E! CITY DIRECTORY ABSTRACTS
APPENDIX F ! FOIA INFORMATION
APPENDIX G ! SITE PHOTOS
APPENDIX H ! SITE MAP
APPENDIX I ! SITE ZONE MAP
APPENDIX J ! BUILDING PERMIT REPORT
APPENDIX K ! TAX REPORT
APPENDIX L ! ENVIRONMENTAL LIEN

504
CC 02-01-2022
504 of 756
AEC Project No. 3940
July 29, 2019

1- EXECUTIVE SUMMARY

Achievement Engineering Corp. (AEC) was retained by Alan Enterprise LLC. to perform a Phase I Environmental Site Assessment (ESA) of the property located at 22690 Stevens Creek Boulevard, Cupertino, California 95014 (Three parcels with APNs 342-14-04, 342-14-05, and 342- 14-66). The following summary highlights the significant findings and conclusions representing our best professional judgment based on the information and data available to us during the course of this assessment. The reader is referred to the report text for full details.

PHYSICAL SETTING

! The subject site is located at 22690 Stevens Creek Boulevard, Cupertino, California 95014 (Three parcels with APNs 342-14-04, 342-14-05, and 342-14-66), with coordinates of 37° 19!

18.27!! N and 122° 4! 8.20!! W.
! The topography of the subject is relatively flat at the target property with an average elevation of approximately 386.0 feet (General topographic gradient is NNE). ! It appears that the upper soil near the site is Urban Land, with unreported surface texture and drainage class.
! Rock stratigraphic unit geologic age identification is as follows:

Era: Cenozoic
Category: Continental Deposits
System: Tertiary
Series: Pliocene
Code: Tpc (decoded above as Era, System & Series)
The subject site does not contain any evidence of jurisdictional non-tidal wetlands (national or state).

HISTORICAL DATA

The subject site is currently owned by Bateh Brothers Liquors and Mini Mart (George and Nahida Bateh) and is located on the west south corner of Stevens Creek Blvd. and Foothill Blvd. intersection at 22690 Stevens Creek Boulevard, Cupertino, California 95014, within mixed use plan development( General Commercial) zone of Cupertino.

The subject site comprised of three parcels with assessor parcel number (APN) 342-14-04, 342- 14-05, and 342-14-66, with a total area of approximately 0.75 acre. Review of the historical data available for the subject site reveals that most probably the development of the site as is took place between 1950 and 1956 (based on aerial photos), the first city directory listing for this 505
CC 02-01-2022
505 of 756
AEC Project No. 3940
July 29, 2019
3 property belongs to 1975, before that, this address does not exist in 1970 and 1968 listings. Bateh Brothers Liquors and Mini Mart has been listed in 2014 back to 1980 listings. In 1975 directory, a "#$%&!' ()*+,# $%- .#,/0#1 23,#0 4$' 500% 6)'30-7 86', $% )%30#9)0: /,%-+/30- 51 ,340#' )% ;<=> reveals that before 1976, the place was used as a bar. No building permit was found indicating any other use for this property. Per aerial photos, in 1939 an orchard was in the property that cannot be observed in 1950 aerial photo. Sometime between 1939 and 1950 the trees were gradually cleared, starting from north to south. The existence of fertilizers, pesticides and metals are possible in the shallow soil due to this historical land use.

Also, review of the historical data for adjacent properties of the subject site using the City Directory Abstract (refer to Appendix E) provided by EDR reveals that for the most part, uses were mixed residential and commercial (a veterinary clinic has existed since (at least 1989) at 10012 N.

Foothill Blvd.) and Beacon Service Station has been in service under different names as follows:

1995- to Present -Cupertino Beacon Service Station, Cupertino Auto Care 1989- Foothill Mobil
1981-1984 -McElroy Mobil Service
1976 -D&D Mobil Service
1971 -Johns Mobil Service, Mobil Oil Corporation
1968 -Johns Mobil

ENVIRONMENTAL LIEN

The search by EDR indicates that no environmental lien was found for the subject property. Also no OTHER ACTIVITY AND USE LIMITATIONS (AULs) was found for this property. The Appendix L exhibits the search results.

SITE RECONNAISSANCE

Hazardous Materials !Hazardous chemicals and/or products, as defined in the Code of Federal Regulations 29 CFR 1910.1200, is not used per record and was not observed at the subject site.

Storage Tanks ! Currently, no underground storage tank is being used at the subject site. Per Phase I performed by EIS in March 2017, the current business stored small quantities of propane in a locked metal cabinet adjacent to the northeastern building exterior.

Waste Generation ! At the time of this ESA, no hazardous or regulated wastes has been observed at the Site. Dumpsters for domestic waste located at the back of building.

Surface Areas ! Currently, The subject property consists of three conjoined parcels that form an L-shaped area of approximately 0.75-acres. One 3,025-SF commercial structure is developed on the northeastern corner of the property. The building is currently occupied by Bateh Bros Liquors & Mini Mart. Paved asphalt parking spaces are located on the eastern portion of the Site. The rest of the property is currently an undeveloped dirt and gravel lot.

506
CC 02-01-2022
506 of 756
AEC Project No. 3940
July 29, 2019
4 Adjacent Properties ? Adjacent properties are mixed use (commercial, services and residentials) Two major properties are Beacon Service Station at 22510 Stevens Creek Blvd. and Arcadia Veterinary at 10012 N. Foothill Blvd.

CONCLUSIONS
Based on the currently available information, the subject site is currently owned by Bateh Brothers Liquors and Mini Mart (George and Nahida Bateh), located at 22690 Stevens Creek Boulevard, Cupertino, CA 95014 within mixed use plan development (General Commercial) zone of Cupertino. The site itself has not been listed in any data base searched.

In May 2017 EIS performed a limited Phase II investigation at this property to assess the impact of neighboring site (Cupertino Beacon at 22510 Stevens Creek) at this property. Above-ESL benzene concentration in soil vapor was found in the borings at the subject site.

There is one site listed on various databases in the close proximity to and at higher elevation of the subject site;

! Santa Clara County Fire Station (Also recorded as Monta Vista Fire station) at 22620 Stevens Creek Blvd., 332 ft., west of the subject site.

There are two sites in the close proximity of the site, but at lower elevations:

! Cupertino Beacon at 22510 Stevens Creek, 180 ft. east of the subject property

! Foothill Auto Services at 10121 N. Foothill, 620 ft., north of the subject property

The review of the aerial photos and historical use of the property as an orchard from at least 1939 to 1950 indicate that there is a potential that metals and pesticides exist in shallow site soil. Above- ESL benzene concentration in soil vapor was found in the borings at the subject site is also a recognized environmental conditions. Besides, the open LUST case and documented soil, groundwater, and soil vapor contamination at neighboring property 22510 Stevens Creek Boulevard (Cupertino Beacon) represents an offsite controlled recognized environmental condition. To assess the impacts of the neighboring site at the subject site, conducting a limited Phase II investigation is recommended.

No disturbed soil areas, discolored or polluted water, unusual or noxious, floor drains, PCB containing transformers or nearby former railroad tracks was observed at the subject site.

507
CC 02-01-2022
507 of 756
AEC Project No. 3940
July 29, 2019
5 2- PURPOSE

The purpose of this Phase I ESA is limited to providing an assessment of current environmental conditions at the subject site, to the extent feasible, based on the data available and as referenced as part of an estate transaction process. The assessment was conducted to identify and highlight recognized environmental conditions (REC). REC can be defined 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. The following scope of work was performed to identify REC associated with the subject site:

! A review and evaluation of federal and state databases systems including Federal NPL, Federal Delisted NPL site list, Federal CERCLIS, Federal RCRA (CORRACTS and non- CORRACTS) facilities list, Federal CERCLIS NFRAP, Federal RCRA Generator list, Federal institutional controls/engineering controls registries, Federal ERNS list, State- and tribal, State and tribal landfill and/or solid waste disposal site lists, State and tribal leaking storage tank lists, State and tribal registered storage tank lists, State and tribal voluntary cleanup sites and State and tribal Brownfields sites, Local Brownfield lists, Local Lists of Landfill / Solid Waste Disposal Sites, Local Lists of Hazardous waste / Contaminated Sites, Local Land Records, Records of Emergency Release Reports, EDR High Risk Historical Records, EDR Recovered Government Archives and Other Ascertainable Records, as indicated in Appendix A, pages 6 and 7.

! An evaluation of the physical characteristics of the site including topography, geology, soil type, wetlands, and flood plain information.

! A review and evaluation of standards practiced including historical information available for the subject site such as aerial photographs, zoning records and historical maps, reviewing land uses by the aid of City Directory.

! A site visit searching for physical indication of any contamination, documenting it with photographs and interviews with land owner/local peopleworking in the area looking for history of any contamination or release.

! @09)0: ,A 340 3:, #0B,#3' CD4$'0 E F%9)#,%G0%3$6 2)30 8''0''G0%3H ;;IJ< 23090%' K#00& Boulevard, Santa Clara, K$6)A,#%)$L -$30- M$#/4 ;<=> $%- CPhase II Limited Soil, Groundwater, & Soil Vapor Investigation Report, 22690 Stevens Creek Boulevard, Cupertino, CaliforniaLH dated May 2017, both prepared by EIS.

508
CC 02-01-2022
508 of 756
AEC Project No. 3940
July 29, 2019
6 3- METHODOLOGY USED

The following assessment and pertaining report were prepared in accordance with ASTM E 1527- 2013, Standard Practice for Environmental Site Assessment: Phase I Environmental Site Assessment Process. We used the following methods to evaluate the environmental conditions at the subject site.

A review of the regulatory status of the subject site as it pertains to regulated activities involving the use of hazardous chemicals, the generation of hazardous waste, the treatment, storage, or disposal of hazardous waste, or the release of regulated substances. AEC used services of Environmental Data Resources, Inc. (EDR) to conduct the appropriate radius searches of the subject site of this report in conformance with the scope and limitations of the above referenced ASTM. The Standard approximate minimum search review distances requirements are as follows (The ones in italic font do not have standard distances, but have been reviewed under the distances specified, if any data available for the subject site):

To One (1) Mile:

! Federal National Priorities List (NPL).
! Resource Conservation and Recovery Act - Treatment, Storage, and Disposal Facilities (RCRA-TSD).
! Federal RCRA CORRACTS facilities list
! State- and tribal-equivalent NPL
! Notify 65
To One-Half (0.5) of a Mile:

! Federal Delisted NPL site list
! Federal CERCLIS list
! Federal CERCLIS NFRAP site list
! Solid Waste Disposal Facilities, Active and Inactive (SWLF) ! Federal RCRA non-CORRACTS TSD facilities list
! State- and tribal-equivalent CERCLIS
! State and tribal landfill and/or solid waste disposal site lists ! State and tribal leaking storage tank lists (LUST)
! State and tribal voluntary cleanup sites
! HIST CORTESE
! Local Lists of Hazardous waste / Contaminated Sites
To One-Quarter (0.25) of a Mile:

! RCRA-SQG
! RCRA-LQG
509
CC 02-01-2022
509 of 756
AEC Project No. 3940
July 29, 2019
7 ! RCRA-CESQG
! Local Lists of Registered Storage Tanks (SWEEPS, HIST UST, CA FID UST, CERS TANKS) ! Available State Lists of Underground Storage Tanks (USTs). ! CUPA Listings
! DRYCLEANERS
To One-Eighth (0.125) of a Mile:

! Environmental Response Notification System (ERNS)
! Resource Conservation and Recovery Act - Large Quantity Generators (RCRA- LgGen) ! Resource Conservation and Recovery Act - Small Quantity Generators (RCRA- SmGen) ! EDR Hist Cleaner
! EDR Hist Auto list
! Federal institutional controls/engineering controls registries A copy of the EDR Report is attached as Appendix A. This report also includes the time that information requested, last updated by EDR and last updated by the original reference. ! AEC has forwarded correspondences to Santa Clara Department of Environmental Health (SCDEH) and Santa Clara Fire Department in compliance with the Freedom of Information Act (FOIA). The results of all inquiries will be documented in Appendix F. DTSC (Department of Toxic Substances Control) Archives will also be consulted.

! Historical research of the subject site back to year 1897 was conducted (when data available).

The history of site development and usage was developed using the following historical sources:
" Aerial photographs available from EDR back to 1939.
" City directories available from EDR back to 1968.
" Historical Topographic maps obtained from EDR back to 1897. " Certified Sanborn maps obtained for this address was not available.

AEC representative visually and physically observed the peripheral surface areas of the subject site on 27 July, 2019. In addition, the observations of the adjacent properties to identify high-risk and contamination migration concerns were made by a walk-through of the accessible sections of the referenced site and its surroundings. An interview was conducted with George Bateh the owner of the liquor store and a mechanic who has worked in Cupertino Beacon for almost 19 years which the responses have been used in preparing this report.

510
CC 02-01-2022
510 of 756
AEC Project No. 3940
July 29, 2019
8 4- REGULATORY REVIEW

Standard Environmental Records Reviewed.

The target property was not listed in any of the databases searched by EDR. Among the standard databases searched by EDR, the following can be named (for full details, see end of Appendix A):

Federal NPL site list
NPL National Priority List
Proposed NPL- Proposed National Priority List Sites
NPL LIENS Federal Superfund Liens
Federal Delisted NPL site list
Delisted NPL National Priority List Deletions
Federal CERCLIS list
FEDERAL FACILITY Federal Facility Site Information listing SEMS Superfund Enterprise Management System
Federal CERCLIS NFRAP site list
SEMS-ARCHIVE: Superfund Enterprise Management System Archive Federal RCRA CORRACTS facilities list
CORRACTS Corrective Action Report
Federal RCRA non-CORRACTS TSD facilities list
RCRA-TSDF: RCRA - Treatment, Storage and Disposal
Federal RCRA generators list
RCRA-LQG RCRA - Large Quantity Generators
RCRA-CESQG RCRA - Conditionally Exempt Small Quantity Generator Federal institutional controls / engineering controls registries LUCIS Land Use Control Information System
US ENG CONTROLS Engineering Controls Sites List
US INST CONTROL Sites with Institutional Controls
Federal ERNS list
ERNS Emergency Response Notification System
State- and tribal - equivalent NPL
CA RESPONSE: State Response Sites
State and tribal leaking storage tank lists

INDIAN LUST
State and tribal landfill and/or solid waste disposal site lists SWF/LF Solid Waste Information System
State and tribal registered storage tank lists
FEMA UST Underground Storage Tank Listing
UST CLOSURE: Proposed Closure of Underground Storage Tank (UST) Cases UST: Active UST Facilities
State and tribal voluntary cleanup sites
INDIAN VCP: Voluntary Cleanup Priority Listing
State and tribal Brownfields sites
BROWNFIELDS Considered Brownfields Sites Listing
511
CC 02-01-2022
511 of 756
AEC Project No. 3940
July 29, 2019
9 Additional Environmental Records are listed in pages 5 to 7, Appendix A.

Surrounding Sites Search results
4-2-1- Federal CERCLIS NFRAP:

SEMS-ARCHIVE: SEMS-ARCHIVE (Superfund Enterprise Management System Archive) tracks sites that have no further interest under the Federal Superfund Program based on available information. The list was formerly known as the CERCLIS-NFRAP, renamed to SEMS ARCHIVE by the EPA in 2015. EPA may perform a minimal level of assessment work at a site while it is archived if site conditions change and/or new information becomes available. Archived sites have been removed and archived from the inventory of SEMS sites. Archived status indicates that, to 340 50'3 ,A FD8!' &%,:60-N0H $''0''G0%3 $3 $ ')30 4$' 500% /,GB6030- $%- 34$3 FD8 4$' determined no further steps will be taken to list the site on the National Priorities List (NPL), unless information indicates this decision was not appropriate or other considerations require a recommendation for listing at a later time. The decision does not necessarily mean that there is no hazard associated with a given site; it only means that based upon available information, the location is not judged to be potential NPL site.

A review of the SEMS-ARCHIVE list, as provided by EDR, and dated 04/11/2019 has revealed that there is 1 SEMS-ARCHIVE site within approximately 0.5 miles of the target property:

SEMS-ARCHIVE
Equal/Higher
Elevation Address Direction / Distance

KAISER ALUMINUM
FOIL 23333 STEVENS CREEK W 1/4 - 1/2 (0.366 mi.)

4-2-2- State- and tribal - equivalent CERCLIS

K8 FOPE@Q2RQ@S R40 T0B$#3G0%3 ,A R,U)/ 2+5'3$%/0' K,%3#,6!' VTR2K!'W 2)30 M)3)N$3),% $%- X#,:%A)06-' @0+'0 D#,N#$G!' V2MX@D!'W FnviroStor database identifies sites that have known contamination or sites for which here may be reasons to investigate further. The database includes the following site types: Federal Superfund sites (National Priorities List (NPL)); State Response, including Military Facilities and State Superfund; Voluntary Cleanup; and School sites.

EnviroStor provides similar information to the information that was available in CalSites, and provides additional site information, including, but not limited to, identification of formerly- contaminated properties that have been released for reuse, properties where environmental deed restrictions have been recorded to prevent inappropriate land uses, and risk characterization information that is used to assess potential impacts to public health and the environment at contaminated sites.

A review of the CA ENVIROSTOR list, as provided by EDR, and dated 04/29/2019 has revealed that there are 4 CA ENVIROSTOR sites within approximately 1 mile of the target property.

512
CC 02-01-2022
512 of 756
AEC Project No. 3940
July 29, 2019
10 CA ENVIROSTOR
Equal/Higher Elevation
Lower Elevation Address Direction / Distance
KAISER ALUMINUM AND 23333 STEVENS CREEK W 1/4 - 1/2 (0.366 mi.) KAISER CEMENT CORP 2401 STEVENS CREEK B W 1/2 - 1 (0.994 mi.)

CA ENVIROSTOR
Lower Elevation
Lower Elevation Address Direction / Distance
BLACKBERRY FARM PLAY 21979 SAN FERNANDO D ESE 1/4 - 1/2 (0.485 mi.) ACRIAN INC 10131 BUBB RD E 1/2 - 1 (0.973 mi.)

4-2-3- State and tribal leaking storage tank lists
CA LUST: Leaking Underground Storage Tank (LUST) Sites included in GeoTracker.

GeoTracker is the Water Boards data management system for sites that impact, or have the potential to impact, water quality in California, with emphasis on groundwater.

A review of the CA LUST list, as provided by EDR, has revealed that there are 7 CA LUST sites within approximately 0.5 miles of the target property.

CA LUST
Equal/Higher Elevation
Equal/Higher Address Direction / Distance
SANTA CLARA COUNTY F 22620 STEVENS CREEK W 0 - 1/8 (0.063 mi.) MONTA VISTA SUBSTATI 10110 CALIFORNIA OAK NW 1/4 - 1/2 (0.327 mi.)

CA LUST
Lower Elevation
Lower Address Direction / Distance
CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) ARCO #6182 10121 N FOOTHILL BLV N 0 - 1/8 (0.119 mi.)
FOOTHILL AUTO SERVIC 10121 N. FOOTHILL BO N 0 - 1/8 (0.119 mi.) FACCIOLA RESIDENCE 22371 CUPERTINO RD ENE 1/8 - 1/4 (0.189 mi.)

CA CPS-SLIC: Cleanup Program Sites (CPS; also known as Site Cleanups [SC] and formerly known as Spills, Leaks, Investigations, and Cleanups [SLIC] sites) included in GeoTracker.

GeoTracker is the Water Boards data management system for sites that impact, or have the potential to impact, water quality in California, with emphasis on groundwater.

A review of the CA CPS-SLIC list, as provided by EDR, has revealed that there are 2 CA CPS- SLIC sites within approximately 0.5 miles of the target property.

513
CC 02-01-2022
513 of 756
AEC Project No. 3940
July 29, 2019
11 CA CPS-SLIC
Equal/Higher Elevation
Equal/Higher Address Direction / Distance
KAISER ALUMINUM AND 23333 STEVENS CREEK W 1/4 - 1/2 (0.366 mi.) PRIVATE RESIDENCE PRIVATE RESIDENCE S 1/4 - 1/2 (0.495 mi.)

CA HIST LUST: A listing of open and closed leaking underground storage tanks. This listing is no longer updated by the county. Leaking underground storage tanks are now handled by the Department of Environmental Health.

A review of the CA HIST LUST list, as provided by EDR, and dated 03/29/2005 has revealed that there are 4 CA HIST LUST sites within approximately 0.5 miles of the target property.

CA HIST LUST
Equal/Higher Elevation
Equal/Higher Address Direction / Distance
SANTA CLARA COUNTY F 22620 STEVENS CREEK W 0 - 1/8 (0.063 mi.)

CA HIST LUST
Lower Elevation
Lower Address Direction / Distance
CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) ARCO #6182 10121 N FOOTHILL BLV N 0 - 1/8 (0.119 mi.)
FACCIOLA RESIDENCE 22371 CUPERTINO RD ENE 1/8 - 1/4 (0.189 mi.)

4-2-4- State and tribal registered storage tank lists

CA UST: The Underground Storage Tank database contains registered USTs. USTs are regulated under Subtitle I of the Resource Conservation and Recovery Act (RCRA). The data /,G0 A#,G 340 23$30 Y$30# @0',+#/0' K,%3#,6 X,$#-!' Z$[$#-,+' 2+5'3$%/0 23,#$N0 K,%3$)%0# Database.

A review of the UST list, as provided by EDR, has revealed that there is 1 UST site within approximately 0.25 miles of the target property.

CA UST
Equal/Higher Elevation
Equal/Higher Address Direction / Distance
MONTA VISTA FIRE STA 22620 STEVENS CREEK W 0 - 1/8 (0.063 mi.)

CA UST
Lower Elevation
Lower Address Direction / Distance
CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) 514
CC 02-01-2022
514 of 756
AEC Project No. 3940
July 29, 2019
12 CA UST
Lower Elevation
Lower Address Direction / Distance
BEACON SERVICE STATI 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) ARCO SERVICE STATION 10121 N FOOTHILL BL N 0 - 1/8 (0.119 mi.)

4-2-5- State and tribal voluntary cleanup sites

CA VCP: Contains low threat level properties with either confirmed or unconfirmed releases and the project proponents have request that DTSC oversee investigation and/or cleanup activities $%- 4$90 $N#00- 3, B#,9)-0 /,90#$N0 A,# TR2K!' /,'3'7

A review of the CA VCP list, as provided by EDR, and dated 04/29/2019 has revealed that there is 1 CA VCP site within approximately 0.5 miles of the target property.

CA VCP
Lower Elevation
Lower Address Direction / Distance
BLACKBERRY FARM PLAY 21979 SAN FERNANDO D ESE 1/4 - 1/2 (0.485 mi.)

4-2-6- Local Lists of Hazardous waste / Contaminated Sites

CA CERS HAZ WASTE: List of sites in the California Environmental Protection Agency (CalEPA) Regulated Site Portal which fall under the Hazardous Chemical Management, Hazardous Waste Onsite Treatment, Household Hazardous Waste Collection, Hazardous Waste Generator, and RCRA LQ HW Generator programs.

A review of the CA CERS HAZ WASTE list, as provided by EDR, and dated 04/09/2019 has revealed that there are 4 CA CERS HAZ WASTE sites within approximately 0.25 miles of the target property.

CA CERS HAZ WASTE
Equal/Higher Elevation
Equal/Higher Address Direction / Distance
DONNA COTNER DDS 10011 N FOOTHILL BL NW 0 - 1/8 (0.021 mi.)

CA CERS HAZ WASTE
Lower Elevation
Lower Address Direction / Distance
CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) CUPERTINO AUTO REPAIR 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) ACADIA VETERINARY CL 10012 N FOOTHILL BL NE 0 - 1/8 (0.038 mi.)

515
CC 02-01-2022
515 of 756
AEC Project No. 3940
July 29, 2019
13 4-2-7- Local Lists of Registered Storage Tanks

CA SWEEPS UST: Statewide Environmental Evaluation and Planning System. This underground storage tank listing was updated and maintained by a company contacted by the SWRCB in the 0$#61 =JJ<!'7 R40 6)'3)%N )' %, longer updated or maintained. The local agency is the contact for more information on a site on the SWEEPS list.

A review of the CA SWEEPS UST list, as provided by EDR, and dated 06/01/1994 has revealed that there are 4 CA SWEEPS UST sites within approximately 0.25 miles of the target property.

CA SWEEPS UST
Equal/Higher Elevation
Equal/Higher Address Direction / Distance
SANTA CLARA COUNTY F 22620 STEVENS CREEK W 0 - 1/8 (0.063 mi.)

CA SWEEPS UST
Lower Elevation
Lower Address Direction / Distance
BEACON SERVICE STATI 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) FOOTHILL AUTO SERVIC 10121 N. FOOTHILL BO N 0 - 1/8 (0.119 mi.) FACCIOLA RESIDENCE 22371 CUPERTINO RD ENE 1/8 - 1/4 (0.189 mi.)

CA HIST UST: Historical UST Registered Database.

A review of the CA HIST UST list, as provided by EDR, and dated 10/15/1990 has revealed that there are 4 CA HIST UST sites within approximately 0.25 miles of the target property.

CA HIST UST
Lower Elevation
Lower Address Direction / Distance
MOBIL SERVICE STATIO 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) !" #$%&$%'& INC. 10121 N FOOTHILL BLV N 0 - 1/8 (0.119 mi.) !" #$%&$%'& (%)" 10121 N FOOTHILL BLV N 0 - 1/8 (0.119 mi.) FOOTHILL AUTO SERVIC 10121 N FOOTHILL BLV N 0 - 1/8 (0.119 mi.)

CA FID UST: The Facility Inventory Database contains active and inactive underground storage tank locations. The source is the State Water Resource Control Board.

A review of the CA FID UST list, as provided by EDR, and dated 10/31/1994 has revealed that there is 1 CA FID UST site within approximately 0.25 miles of the target property.

CA FID UST Lower Elevation
Lower Address Direction / Distance
MOBIL SERVICE STATIO 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.)

516
CC 02-01-2022
516 of 756
AEC Project No. 3940
July 29, 2019
14 CA CERS TANKS: List of sites in the California Environmental Protection Agency (CalEPA) Regulated Site Portal which fall under the Aboveground Petroleum Storage and Underground Storage Tank regulatory programs.

A review of the CA CERS TANKS list, as provided by EDR, and dated 04/09/2019 has revealed that there are 2 CA CERS TANKS sites within approximately 0.25 miles of the target property.

CA CERS TANKS
Equal/Higher Elevation
Equal/Higher Address Direction / Distance
MONTA VISTA FIRE STA 22620 STEVENS CREEK W 0 - 1/8 (0.063 mi.)

CA CERS TANKS
Lower Elevation
Lower Address Direction / Distance
CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.)

4-2-8- Other Ascertainable Records
@K@8 O,%.0% \ O(@S @K@8E%A, )' FD8!' /,GB#040%')90 )%A,#G$3),% '1'30GH B#,9)-)%N $//0'' to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Non-Generators do not presently generate hazardous waste.

A review of the RCRA NonGen / NLR list, as provided by EDR, and dated 03/25/2019 has revealed that there are 4 RCRA NonGen / NLR sites within approximately 0.25 miles of the target property.

RCRA NonGen / NLR
Equal/Higher Elevation
Equal/Higher Address Direction / Distance
LIFETIME DENTAL CARE 10011 N FOOTHILL BLV NW 0 - 1/8 (0.021 mi.) CAMBRIDGE PROPERTY M 22731 STEVENS CREEK W 1/8 - 1/4 (0.174 mi.)

RCRA NonGen / NLR
Lower Elevation
Lower Address Direction / Distance
CUPERTINO AUTO CARE 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) DAVID RANNELLS 10073 AMADOR OAK COU NNW 1/8 - 1/4 (0.151 mi.)

CA Cortese: The sites for the list are designated by the State Water Resource Control Board (LUST), the Integrated Waste Board (SWF/LS), and the Department of Toxic Substances Control (Cal-Sites).

A review of the CA Cortese list, as provided by EDR, and dated 03/25/2019 has revealed that there is 1 CA Cortese site within approximately 0.5 miles of the target property.

517
CC 02-01-2022
517 of 756
AEC Project No. 3940
July 29, 2019
15 CA Cortese
Lower Elevation
Lower Address Direction / Distance
CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.)

K8 K]D8 ()'3)%N'S 8 6)'3)%N ,A ')30' )%/6+-0- )% 340 /,+%31!' K0#3)A)0- ]%)A)0- D#,N#$G 8N0%/1 -$3$5$'07 K$6)A,#%)$!' 20/#03$#1 A,# F%9)#,%G0%3al Protection established the unified hazardous materials and hazardous waste regulatory program as required by chapter 6.11 of the California Health and Safety Code. The Unified Program consolidates the administration, permits, inspections, and enforcement activities.

A review of the CA CUPA Listings list, as provided by EDR, has revealed that there are 10 CA CUPA Listings sites within approximately 0.25 miles of the target property.

CA CUPA
Equal/Higher Elevation
Equal/Higher Address Direction / Distance
DONNA COTNER DDS 10011 N FOOTHILL BL NW 0 - 1/8 (0.021 mi.) GARFIELD FAMILY CHIR 10011 N FOOTHILL BL NW 0 - 1/8 (0.021 mi.) LIFETIME DENTAL CARE 10011 N FOOTHILL BL NW 0 - 1/8 (0.021 mi.)

CA CUPA
Lower Elevation
Lower Address Direction / Distance
CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) CUPERTINO AUTO CARE 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) ACADIA VETERINARY CL 10012 N FOOTHILL BL NE 0 - 1/8 (0.038 mi.) FOOTHILL VALERO 10121 N FOOTHILL BL N 0 - 1/8 (0.119 mi.) FREEMANS AUTO SERVIC 10121 N FOOTHILL BL N 0 - 1/8 (0.119 mi.) FOOTHILL AUTO SERVIC 10121 N FOOTHILL BL N 0 - 1/8 (0.119 mi.) AAA AUTO REPAIR AND 10121 N FOOTHILL BL N 0 - 1/8 (0.119 mi.)

CA HIST CORTESE: The sites for the list are designated by the State Water Resource Control Board [LUST], the Integrated Waste Board [SWF/LS], and the Department of Toxic Substances Control [CALSITES]. This listing is no longer updated by the state agency.

A review of the CA HIST CORTESE list, as provided by EDR, and dated 04/01/2001 has revealed that there are 5 CA HIST CORTESE sites within approximately 0.5 miles of the target property.

CA HIST CORTESE
Equal/Higher Elevation
Equal/Higher Address Direction / Distance
SANTA CLARA COUNTY F 22620 STEVENS CREEK W 0 - 1/8 (0.063 mi.) KAISER ALUMINUM AND 23333 STEVENS CREEK W 1/4 - 1/2 (0.366 mi.)

518
CC 02-01-2022
518 of 756
AEC Project No. 3940
July 29, 2019
16 CA HIST CORTESE
Lower Elevation
Lower Address Direction / Distance
CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) ARCO #6182 10121 N FOOTHILL BLV N 0 - 1/8 (0.113 mi.)
FACCIOLA RESIDENCE 22371 CUPERTINO RD ENE 1/8 - 1/4 (0.189 mi.)

CA HWP: Detailed information on permitted hazardous waste facilities and corrective action ("clean ups") tracked in EnviroStor.

A review of the CA HWP list, as provided by EDR, and dated 05/20/2019 has revealed that there is 1 CA HWP site within approximately 1 mile of the target property.

CA HWP
Lower Elevation
Lower Address Direction / Distance
ACRIAN INC 10131 BUBB RD E 1/2 - 1 (0.973 mi.)

CA Notify 65: Listings of all Proposition 65 incidents reported to counties by the State Water Resources Control Board and the Regional Water Quality Control Board. This database is no longer updated by the reporting agency.

A review of the CA Notify 65 list, as provided by EDR, and dated 03/18/2019 has revealed that there is 1 CA Notify 65 site within approximately 1 mile of the target property.

CA HIST CORTESE
Lower Elevation
Lower Address Direction / Distance
ARCO SERVICE STA 10121 N FOOTHILL BLV N 0 - 1/8 (0.119 mi.)

4-2-9- EDR HIGH RISK HISTORICAL RECORDS
4-2-9-1- EDR Exclusive Records
EDR Hist Auto: EDR has searched selected national collections of business directories and has collected listings of potential gas station/filling station/service station sites that were available to EDR re'0$#/40#'7 FT@!' #09)0: :$' 6)G)30- 3, 34,'0 /$30N,#)0' ,A ',+#/0' 34$3 G)N43H )% FT@!' opinion, include gas station/filling station/service station establishments. The categories reviewed included, but were not limited to gas, gas station, gasoline station, filling station, auto, automobile repair, auto service station, service station, etc. This database falls within a category of )%A,#G$3),% FT@ /6$'')A)0' $' ^Z)N4 @)'& Z)'3,#)/$6 @0/,#-'^H ,# Z@Z@7 FT@!' Z@Z@ 0AA,#3 presents unique and sometimes proprietary data about past sites and operations that typically create environmental concerns, but may not show up in current government records searches.

519
CC 02-01-2022
519 of 756
AEC Project No. 3940
July 29, 2019
17 A review of the EDR Hist Auto list, as provided by EDR, has revealed that there are 4 EDR Hist Auto sites within approximately 0.125 miles of the target property.

Hist Auto list
Lower Elevation
Lower Address Direction / Distance
ACTION AUTO SERVICE 10010 FOOTHILL BLVD NE 0 - 1/8 (0.026 mi.) JOHNS MOBIL SERVICE 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) FOOTHILL AUTO SERVIC 10121 N FOOTHILL BLV N 0 - 1/8 (0.119 mi.) ACED ACRO SERVICE 10121 FOOTHILL N 0 - 1/8 (0.119 mi.)

4-2-10- Unmapped addresses
Due to poor or inadequate address information, the following sites were not mapped:

CA CDL
Kaiser Cement Corp Permanente Plan SEMS
1x Stevens Creek Quarry CA HAZNET
Stevens Creek Dam FINDS
Bridge 37c0571 Over Stevens Creek FINDS
Stevens Creek Quarry, Inc. US MINES

OTHER REGULATORY INFORMATION
In addition to the above referenced databases, EDR supplied information from numerous existing government databases. The list of the databases is provided in the attached EDR report (Appendix A).

FREEDOM OF INFORMATION ACT (FOIA) REQUEST
AEC has forwarded correspondences to Santa Clara Department of Environmental Health (SCDEH) and Santa Clara Fire Department in compliance with the Freedom of Information Act (FOIA). The results of all inquiries will be documented in Appendix F. DTSC (Department of Toxic Substances Control) Archives will also be consulted.

520
CC 02-01-2022
520 of 756
AEC Project No. 3940
July 29, 2019
18 5- PHYSICAL SETTING

TOPOGRAPHY

The United States Geological Survey (USGS) maps were reviewed. The topography of the subject site is relatively flat and general topographic gradient is NNE. The site itself is at an approximate average elevation of 386.0 feet above mean sea level. Elevation profiles are provided in Appendix A under physical setting.

SOILS

The Soil Survey of the area, available from the United States Department of Agriculture-NRCS was reviewed. It appears that the upper soil near the site is Urban Land, with unreported surface texture and drainage class.

FLOOD PLAIN INFORMATION

The Federal Emergency Management Agency (FEMA), through its National Flood Insurance Program, has published Flood Insurance Rate Maps that delineate flood zones. Flood events of a magnitude that are expected to be equaled or exceeded once on the average during any 100- year, or 500-year period have been selected as having special significance for flood plain management and for flood insurance rates. These events, commonly termed the 100- and 500- year floods, have a 1 and 0.2 percent chance, respectively, of being equaled or exceeded during any year. Although the recurrence interval represents the long-term average period between floods of a specific magnitude, rare floods could occur at short intervals or even within the same year. FEMA has made delineations based on whether a particular area experiences minimal flooding, is within the boundary of the 100-year flood, or is within the boundary of the 500-year flood. The Site is noted on FEMA Map Number 06085C0204H (FEMA firm Flood data). The site is not located within 100- year but it is within 500-year flood zone.

GEOLOGY

The project site is located within the Coast Range Geomorphic Province. Local uplift of the Santa Cruz Mountains within the last 2 to 3 million years has occurred due to a restraining bend of the San Andreas Fault, producing transpressional forces across the plate boundary. Thrust faults bound the San Andreas Fault are responsible for uplift of the range. The range is characterized by rugged hills with moderate relief, steep valleys, and locally steep hillsides abutting drainages.

East-flowing drainages result in dissection of the mountain range and alluvial deposition within the San Francisco Bay structural trough.

The site is located on SEARS POINT ASSEMBLAGE, TPc, Claystone_Massive to laminated gray claystone.

Rock stratigraphic unit geologic age identification is as follows:

521
CC 02-01-2022
521 of 756
AEC Project No. 3940
July 29, 2019
19 Era: Cenozoic
Category: Continental Deposits
System: Tertiary
Series: Pliocene
Code: Tpc (decoded above as Era, System & Series)

SURFACE WATER/GROUND WATER HYDROLOGY

Groundwater flow direction for a particular site is best determined by a qualified environmental professional using site-specific well data. Since ascertainable well data for the subject site is not available, it is necessary to rely on EDR to determine ground water flow. EDR utilized the information available from federal and state well databases from the nearest wells located near to the subject site. The direction of the flow for the existing wells farther from the subject site that can be helpful in deciding if the contamination can travel toward the subject site has been presented in EDR, Appendix A, TC5722958.2s Page A-6 .The groundwater levels vary near the subject site and has not been reported in EDR Report. The direction of flow, in the vicinity of the site is also variable and it has not been reported in the report. Phase II Subsurface Investigation Report for the subject site by EIS, May 2017, indicated that groundwater was observed at 21.6 to

29.0 ft. bgs in the two advanced borings.

522
CC 02-01-2022
522 of 756
AEC Project No. 3940
July 29, 2019
20 6- HISTORICAL REVIEW

PRESENT OWNER

The subject site is currently owned by Bateh Brothers Liquors and Mini Market (George and Nahida Bateh)!

AERIAL PHOTOGRAPHS

A review of historical aerial photographs for the years 1939, 1948,1950 1956, 1963, 1968, 1974, 1980, 1998, 2006, 2009, 2012 and 2016 was performed (Appendix C). Review of the historical data available for the subject site reveals that most probably the development of the site as is took place in 1953 (based on aerial photos).

HISTORICAL MAPS

Sanborn Fire Insurance maps were requested from EDR. EDR certified that the complete holdings of the Sanborn Library, LLC collection have been searched based on the supplied target property information and no map for the subject site was found (Appendix D).

The first city directory listing for this property belongs to 1975 :)34 340 %$G0 ,A "#$%&!' ()*+,# $%- grocery. Bateh Brothers Liquors has been listed since 1980. No building permit indicating any other land-use was found in the searched records. Per aerial photos, in 1939 an orchard was in the property that cannot be observed in 1950 aerial photo. Sometime between 1939 and 1950 the trees were gradually cleared, starting from north to south. The existence of fertilizers and pesticides are possible in the soil due to this historical land use.

HISTORICAL CHAIN OF TITLE REPORT

Obtaining a Historical Chain of Title Report is beyond the scope of services of this Phase I ESA report for the subject site.

ZONING AND LAND USE RECORDS

By reviewing Cupertino zoning map, the target property located at 22690 Stevens Creek Boulevard in mixed use plan development (General Commercial) zone of Cupertino. (Refer to Appendix I).
523
CC 02-01-2022
523 of 756
AEC Project No. 3940
July 29, 2019
21 7- SITE RECONNAISSANCE

HAZARDOUS SUBSTANCES AND CONTAINERS

During our site visit dated 27 July, 2109, no pools or sumps containing possible hazardous substances or petroleum products were observed.

FACILITY STORAGE TANKS

Our observations did not reveal the presence of any tank on the subject site. In addition, no evidence of underground pipelines bisecting the subject site was observed during the site visit dated 27 July, 2109. No current evidence of above ground gasoline or diesel storage tanks was observed at the subject site. The historical and regulatory record review revealed no evidence of any USTs previously used at the property. The current business stored small quantities of propane in a locked metal cabinet adjacent to the northeastern building exterior.

SOLID WASTE GENERATION AND DISPOSAL

The property is currently a liquor store and parking lot and no regulated solid waste is generated at the property. A Dumpster for collecting domestic wastes exists at the property.

STORM WATER AND WASTE WATER SYSTEMS

Storm water from paved surface areas is sloped to a public drain. Observation of the storm water system did not identify any abnormal accumulation of petroleum run-off or foreign material. No unusual blockages of the storm water control system were observed. Public water and sewer services are available to the area. During the ESA, no wastewater pretreatment or discharge control devices were observed or reported. The subject site did not contain any pits, ponds, or lagoons.

SURFACE AREAS

The subject property consists of three conjoined parcels that form an L-shaped area of approximately 0.75-acres. One 3,025-SF commercial structure is developed on the northeastern corner of the property. The building is currently occupied by Bateh Bros Liquors & Mini Mart.

Paved asphalt parking spaces are located on the eastern portion of the Site. The rest of the property is currently an undeveloped dirt and gravel lot.

524
CC 02-01-2022
524 of 756
AEC Project No. 3940
July 29, 2019
22 AREA RECONNAISSANCE

During the site visit dated 27 July, 2109, observations were made of the adjacent properties.

These observations were made to identify recognized environmental conditions that have the potential for impacting the subject site. No issues of environmental concern were obvious as the site visit was conducted except existence of a Cupertino Beacon (Formerly Foothill Mobil) that is within 180 ft .radius, but at a lower elevation of the subject site.

525
CC 02-01-2022
525 of 756
AEC Project No. 3940
July 29, 2019
23 8- ADDITIONAL ENVIRONMENTAL CONCERNS

WETLANDS

Wetlands include freshwater marshes, wet meadows, bogs, shrub swamps, wooded swamps, bottomland hardwood forests, shallow ponds, seepage areas, and springs. They range in size from small isolated depressions surrounded by uplands to large complexes thousands of acres in size on the flood plains of major rivers. Review of the available site information did not identify any jurisdictional wetlands (State Wetlands or National Wetlands Inventory) at the subject site.

AIR EMISSIONS

No activity generating any air emission was recognized by the land use in the subject site.

526
CC 02-01-2022
526 of 756
AEC Project No. 3940
July 29, 2019
24 9- FINDINGS AND CONCLUSIONS

AEC performed a Phase I Environmental Site Assessment in conformance with the scope and limitations of ASTM Practice E 1527-13 Phase I Environmental Site Assessment Process of the property located at 22690 Stevens Creek Boulevard, Cupertino, CA 95014, (Three parcels with APNs 342-14-04, 342-14-05, and 342-14-66). Any exceptions to, or deletions from this practice are described in Section 10.0 of this report. AEC has additionally made the following observations:

Based on the currently available information, the subject site is currently owned by Bateh Brothers Liquors and Mini Mart (George and Nahida Bateh), located at 22690 Stevens Creek Boulevard, Cupertino, CA 95014 within mixed use plan development (General Commercial) zone of Cupertino. The site itself has not been listed in any data base searched.

In May 2017 EIS performed a limited Phase II investigation at this property to assess the impact of neighboring site (Cupertino Beacon at 22510 Stevens Creek) at this property:

EIS advanced two exploratory soil borings on the subject property to collect soil, groundwater, and oil vapor samples on May 2, 2017. EIS concluded as followed:

! Soils encountered during the investigation included interbedded gravelly sand, silty sand, sandy gravel, clayey sand, and sandy silt to an explored depth of approximately 34 ft. bgs.

Groundwater was encountered in boreholes SB-1 and SB-2 at depths of 21.61 and 29.09 ft. bgs, respectively.

! There were no detectable concentrations of TPH-g, BTEX or MTBE in the soil or groundwater samples.

! Soil sample SB-;`;a!H /,660/30- A#,G -)#0/361 3, 340 0$'3 ,A 340 2)30 6)*+,# '3,#0H /,%3$)%0- TPH-d at 1.9 mg/kg and TPH-o at 11 mg/kg. Both concentrations are below applicable ESLs for residential and commercial/industrial uses.

! Groundwater sample SB-2, collected directly to the east of the Site liquor store, contained TPH-d at 310 bN\( $%- RDZ-, $3 I;< bN\(7 X,34 /,%/0%3#$3),%' 0U/00- 340 $BB6)/$560 ESL ,A =c< bN\(7 RDZ-d and TPH-o were not detected in the groundwater sample collected from boring SB-2.

! Soil vapor sample SB-=`c!H /,660/30- A#,G 340 $'B4$63-paved parking lot in the southeastern B,#3),% ,A 340 2)30H /,%3$)%0- RDZ $3 ;<H<<< bN\Gd $%- 50%[0%0 $3 Jd< bN\Gd7 R40 50%[0%0 concentration exceeds the applicable ESLs for residential and commercial/industrial uses. The TPH concentration is below the applicable TPH-g ESLs.

TPH and benzene were not detected above laboratory reporting limits in soil vapor sample SB-;`c! /,660/30- 0$'3 ,A 340 Site liquor store.

There is one site listed on various databases in the close proximity to and at higher elevation of the subject site;

527
CC 02-01-2022
527 of 756
AEC Project No. 3940
July 29, 2019
25 1- Santa Clara County Fire Station (Also recorded as Monta Vista Fire station) at 22620 Stevens Creek Blvd., 332 ft., west of the subject site

This site is a closed clean up site. The leak (diesel) was reported in 1997 and the case reported closed in 1998. The facility currently owns a UST, but no leakage or violation found in the record.

There are two sites in the close proximity of the site, but at lower elevations:

2- Cupertino Beacon at 22510 Stevens Creek, 180 ft. east of the subject property

This property located east across the street from the subject site, has historically been occupied by multiple fuel service stations and auto repair businesses since 1968. Former occupants include Cupertino Beacon service station and Cupertino Auto Care from at least 1995 to present, Foothill Mobil in 1989, McElroy Mobil Service from 1981 to 1984, D&D Mobil Service in 1976, and Johns Mobil Service from at least 1968 to 1971. There is currently an open regulatory LUST case at 22510 Stevens Creek Boulevard.

In 1999, the SCVWD advanced borings adjacent to the site within Stevens Creek and South Foothill Boulevards. MTBE was detected in soil and groundwater samples collected from the borings at concentrations of up to 0.8 ppm and 8.5 ppb, respectively. In December, a waste oil UST was removed and the fuel piping was replaced. An estimated 275 tons of soil were removed at this time. Prior to installation of the new piping and fuel dispensers, 3 horizontal vapor extraction wells were installed parallel to the fuel dispenser islands.

January 2000 - 7 direct-push soil borings (GP1 through GP7) were advanced onsite to 15-34 feet below the ground surface (ft bgs). Groundwater was not encountered in the borings. The highest TPHg concentrations (2,200 ppm) were reported for borings in the central portion of the site.

MTBE was detected in all soil samples at concentrations up to 140 ppm.

April 2002 - 3 direct push soil borings (GP8 through GP10) and 6 vapor extraction wells were advanced onsite. Grab groundwater samples were collected and reported to contain up to 120,000 ppb TPHg, 24,000 ppb Benzene, and 34,000 ppb MTBE. In December, 9 monitoring wells (MW1 through MW9) and one vapor well were installed onsite. Periodic groundwater monitoring began at the site.

Between January 2003 and December 2004, several extended soil vapor extraction (SVE) events were conducted at the site.

February 2004 - offsite well MW10 was advanced to the north of the site across Stevens Creek Blvd. to a depth of 40 ft bgs. In May, 5 direct-push borings (DP1 through DP5) were advanced offsite. TPHg was not detected in any of the soil samples. Grab groundwater samples were reported to contain up to 96 ppb TPHg; Benzene and MTBE were not reported to be present above the laboratory reporting limits.

January 2007 - 3 additional offsite monitoring wells (MW11 through MW13), 3 onsite monitoring wells (MW14 through MW16), 3 onsite vapor probe wells and 2 vapor extraction wells were 528
CC 02-01-2022
528 of 756
AEC Project No. 3940
July 29, 2019
26 installed. In April, vapor extraction and multi-phase extraction feasibility tests were conducted.

Dual phase extraction with air sparging has been proposed as the remedial alternative for this site.

In April 2008 ? two monitoring wells (MW17 and MW18), 2 air sparging wells (AS1 and AS2) and 1 vapor extraction well (V1A) were installed onsite.

In
April 2009 - 4 discrete-screened wells (DSW1 through DSW4) were advanced to depths of up to 66 ft bgs to asses if higher permeability soils are present below the depth of 40 ft bgs. Initial groundwater samples from these wells reported concentrations up to 409 ppb TPHg, 2.3 ppb Benzene, and 695 ppb MTBE. These wells were incorporated into the groundwater monitoring program.

The address is currently occupied by a Cupertino Beacon service station and Cupertino Auto Care. The service station has one 6,000-gallon diesel UST and two gasoline USTs of 10,000 and 12,000-gallons, located on the northwestern section of the property.

3- Foothill Auto Services at 10121 N. Foothill, 620 ft., north of the subject property

This site is a closed LUST clean up site, its initial record going back to 1988.

The review of the aerial photos and historical use of the property as an orchard from at least 1938 to early 1950s indicate that there is a potential that metals and pesticides exist in shallow site soil.

Above-ESL benzene concentration in soil vapor was found in the borings at the subject site is a recognized environmental conditions. Besides, the open LUST case and documented soil, groundwater, and soil vapor contamination at neighboring property (Cupertino Beacon) 22510 Stevens Creek Boulevard represents an offsite controlled recognized environmental condition. To assess the impacts of the neighboring site at the subject site, a limited Phase II investigation is recommended.

No disturbed soil areas, discolored or polluted water, unusual or noxious, floor drains, PCB containing transformers or nearby former railroad tracks was observed at the subject site. 529
CC 02-01-2022
529 of 756
AEC Project No. 3940
July 29, 2019
27 10- LIMITATIONS

The following limitations and exceptions are noted:

! AEC relied on Environmental Data Resources, Inc. (EDR) for regulatory review information (i.e., NPL, CERCLIS, CERC, etc.) and the Directory listing, While it is believed that the third party information contained in this report is reliable, AEC cannot guarantee the accuracy or completeness of this information.

! The scope of this assessment does not include site testing of ASTM non-scope considerations that include but are not limited to the following: asbestos-containing materials; radon; lead- based paint; and lead in drinking water.

! The scope of this assessment does not include any testing or sampling of materials such as soils, water, air, etc.

! The scope of this assessment does not include the evaluation of any subsurface conditions.

! Visual and physical observations were limited to accessible areas of the subject site and the areas of the site that AEC is contractually obligated.

! Any additional limitations to the methodology has been used, is specifically addressed in the relevant sections of this report and Appendices.

! This Phase I Environmental Site Assessment report has been prepared for the benefit of the Tesla and may solely be relied upon by its employees and affiliates, and their counsel and consultants.
530
CC 02-01-2022
530 of 756

APPENDIX A ! EDR REPORT

531
CC 02-01-2022
531 of 756

FORM-LBB-LMI
®kcehCoeG htiw tropeR ™paM suidaR RDE ehT
6 Armstrong Road, 4th floor
Shelton, CT 06484
Toll Free: 800.352.0050
www.edrnet.com
22690 Stevens Creek Boulevard
22690 Stevens Creek Boulevard
Cupertino, CA 95014
Inquiry Number: 5722958.2s
July 22, 2019
532
CC 02-01-2022
532 of 756

SECTION PAGE
Executive Summary ES1
Overview Map 2
Detail Map 3
Map Findings Summary 4
Map Findings 9
Orphan Summary 120
Government Records Searched/Data Currency Tracking GR-1

GEOCHECK ADDENDUM
Physical Setting Source Addendum A-1
Physical Setting Source Summary A-2
Physical Setting Source Map A-7
Physical Setting Source Map Findings A-8
Physical Setting Source Records Searched PSGR-1
TC5722958.2s Page 1
Thank you for your business.

Please contact EDR at 1-800-352-0050
with any questions or comments.

Disclaimer - Copyright and Trademark Notice
This Report contains certain information obtained from a variety of public and other sources reasonably available to Environmental Data Resources, Inc. It cannot be concluded from this Report that coverage information for the target and surrounding properties does not exist from other sources. NO WARRANTY EXPRESSED OR IMPLIED, IS MADE WHATSOEVER IN CONNECTION WITH THIS REPORT. ENVIRONMENTAL DATA RESOURCES, INC. SPECIFICALLY DISCLAIMS THE MAKING OF ANY SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE. ALL RISK IS ASSUMED BY THE USER. IN NO EVENT SHALL ENVIRONMENTAL DATA RESOURCES, INC. BE LIABLE TO ANYONE, WHETHER ARISING OUT OF ERRORS OR OMISSIONS, NEGLIGENCE,

ACCIDENT OR ANY OTHER CAUSE, FOR ANY LOSS OF DAMAGE, INCLUDING, WITHOUT LIMITATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES. ANY LIABILITY ON THE PART OF ENVIRONMENTAL DATA RESOURCES, INC. IS STRICTLY LIMITED TO A REFUND OF THE AMOUNT PAID FOR THIS REPORT. Purchaser accepts this Report "AS IS". Any analyses, estimates, ratings, environmental risk levels or risk codes provided in this Report are provided for illustrative purposes only, and are not intended to provide, nor should they be interpreted as providing any facts regarding, or prediction or forecast of, any environmental risk for any property. Only a Phase I Environmental Site Assessment performed by an environmental professional can provide information regarding the environmental risk for any property. Additionally, the information provided in this Report is not to be construed as legal advice.

Copyright 2019 by Environmental Data Resources, Inc. All rights reserved. Reproduction in any media or format, in whole or in part, of any report or map of Environmental Data Resources, Inc., or its affiliates, is prohibited without prior written permission.

EDR and its logos (including Sanborn and Sanborn Map) are trademarks of Environmental Data Resources, Inc. or its affiliates. All other trademarks used herein are the property of their respective owners.

TABLE OF CONTENTS
533
CC 02-01-2022
533 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 1
A search of available environmental records was conducted by Environmental Data Resources, Inc (EDR).

The report was designed to assist parties seeking to meet the search requirements of EPA’s Standards and Practices for All Appropriate Inquiries (40 CFR Part 312), the ASTM Standard Practice for Environmental Site Assessments (E 1527-13), the ASTM Standard Practice for Environmental Site Assessments for Forestland or Rural Property (E 2247-16), the ASTM Standard Practice for Limited Environmental Due Diligence: Transaction Screen Process (E 1528-14) or custom requirements developed for the evaluation of environmental risk associated with a parcel of real estate.

TARGET PROPERTY INFORMATION

ADDRESS
22690 STEVENS CREEK BOULEVARD
CUPERTINO, CA 95014

COORDINATES

37.3217440 - 37˚ 19’ 18.27’’Latitude (North):
122.0689470 - 122˚ 4’ 8.20’’Longitude (West):

Zone 10Universal Tranverse Mercator:
582494.1UTM X (Meters):
4130767.8UTM Y (Meters):
386 ft. above sea levelElevation:

USGS TOPOGRAPHIC MAP ASSOCIATED WITH TARGET PROPERTY
5640178 CUPERTINO, CATarget Property Map:
2012Version Date:

AERIAL PHOTOGRAPHY IN THIS REPORT
20140606, 20140608Portions of Photo from:

USDASource:
534
CC 02-01-2022
534 of 756
5722958.2s Page 2
39 PRIVATE RESIDENCE PRIVATE RESIDENCE CA CPS-SLIC Higher 2615, 0.495, South 38 BLACKBERRY FARM PLAY 21979 SAN FERNANDO D CA ENVIROSTOR, CA VCP, CA CUPA Listings Lower 2560, 0.485, ESE E37 KAISER ALUMINUM FOIL 23333 STEVENS CREEK SEMS-ARCHIVE, RCRA-SQG, NY MANIFEST Higher 1932, 0.366, West E36 KAISER ALUMINUM AND 23333 STEVENS CREEK CA ENVIROSTOR, CA CPS-SLIC, CA EMI, CA HIST... Higher 1932, 0.366, West 35 MONTA VISTA SUBSTATI 10110 CALIFORNIA OAK CA LUST, CA NPDES, CA CIWQS, CA CERS Higher 1725, 0.327, NW 34 FACCIOLA RESIDENCE 22371 CUPERTINO RD CA LUST, CA HIST LUST, CA SWEEPS UST, CA HIST... Lower 999, 0.189, ENE 33 CAMBRIDGE PROPERTY M 22731 STEVENS CREEK RCRA NonGen / NLR Higher 920, 0.174, West 32 DAVID RANNELLS 10073 AMADOR OAK COU RCRA NonGen / NLR Lower 798, 0.151, NNW D31 ACED ACRO SERVICE 10121 FOOTHILL EDR Hist Auto Lower 627, 0.119, North D30 ARCO SERVICE STATION 10121 NORTH FOOTHILL CA Notify 65 Lower 626, 0.119, North D29 FOOTHILL AUTO SERVIC 10121 N. FOOTHILL BO CA LUST, CA SWEEPS UST, CA HIST UST, CA CERS Lower 626, 0.119, North D28 ARCO SERVICE STATION 10121 N FOOTHILL BL CA UST Lower 626, 0.119, North D27 AAA AUTO REPAIR AND 10121 N FOOTHILL BL CA CUPA Listings Lower 626, 0.119, North D26 G. JENSEN’S INC. 10121 N FOOTHILL BLV CA HIST UST Lower 626, 0.119, North D25 FOOTHILL AUTO SERVIC 10121 N FOOTHILL BL CA CUPA Listings Lower 626, 0.119, North D24 G JENSENS INC 10121 NORTH FOOTHILL CA HIST UST, CA HAZNET Lower 626, 0.119, North D23 ARCO #6182 10121 N FOOTHILL BLV CA LUST, CA HIST LUST, CA CERS Lower 626, 0.119, North D22 FREEMANS AUTO SERVIC 10121 N FOOTHILL BL CA CUPA Listings Lower 626, 0.119, North D21 FOOTHILL VALERO 10121 N FOOTHILL BL CA CUPA Listings Lower 626, 0.119, North D20 FOOTHILL AUTO SERVIC 10121 N FOOTHILL BLV EDR Hist Auto Lower 626, 0.119, North D19 ARCO 10121 FOOTHILL CA HIST CORTESE Lower 597, 0.113, North C18 SANTA CLARA COUNTY F 22620 STEVENS CREEK CA LUST, CA HIST LUST, CA SWEEPS UST, CA EMI, CA... Higher 332, 0.063, West C17 MONTA VISTA FIRE STA 22620 STEVENS CREEK CA UST Higher 332, 0.063, West C16 MONTA VISTA FIRE STA 22620 STEVENS CREEK CA CERS TANKS, CA CERS Higher 332, 0.063, West B15 ACADIA VETERINARY CL 10012 N FOOTHILL BL CA CERS HAZ WASTE, CA CUPA Listings Lower 202, 0.038, NE B14 CUPERTINO AUTO REPAI 22510 STEVENS CREEK CA CERS HAZ WASTE, CA CUPA Listings, CA CERS Lower 180, 0.034, East B13 BEACON SERVICE STATI 22510 STEVENS CREEK CA UST Lower 180, 0.034, East B12 JOHNS MOBIL SERVICE 22510 STEVENS CREEK EDR Hist Auto Lower 180, 0.034, East B11 CUPERTINO BEACON 22510 STEVENS CREEK CA UST Lower 180, 0.034, East B10 CUPERTINO BEACON 22510 STEVENS CREEK CA LUST, CA CERS HAZ WASTE, CA CERS TANKS, CA... Lower 180, 0.034, East B9 CUPERTINO AUTO CARE 22510 STEVENS CREEK RCRA NonGen / NLR Lower 180, 0.034, East B8 CUPERTINO BEACON 22510 STEVENS CREEK CA LUST, CA HIST LUST Lower 180, 0.034, East B7 MOBIL SERVICE STATIO 22510 STEVENS CREEK CA HIST UST Lower 180, 0.034, East B6 BEACON SERVICE STATI 22510 STEVENS CREEK CA SWEEPS UST, CA FID UST Lower 180, 0.034, East A5 ACTION AUTO SERVICE 10010 FOOTHILL BLVD EDR Hist Auto Lower 135, 0.026, NE A4 LIFETIME DENTAL CARE 10011 N FOOTHILL BL CA CUPA Listings Higher 111, 0.021, NW A3 LIFETIME DENTAL CARE 10011 N FOOTHILL BLV RCRA NonGen / NLR Higher 111, 0.021, NW A2 GARFIELD FAMILY CHIR 10011 N FOOTHILL BL CA CUPA Listings Higher 111, 0.021, NW A1 DONNA COTNER DDS 10011 N FOOTHILL BL CA CERS HAZ WASTE, CA CUPA Listings Higher 111, 0.021, NW

MAPPED SITES SUMMARY
Target Property Address:
22690 STEVENS CREEK BOULEVARD
CUPERTINO, CA 95014
Click on Map ID to see full detail.

MAP RELATIVE DIST (ft. & mi.)

ID DATABASE ACRONYMS ELEVATION DIRECTIONSITE NAME ADDRESS 535
CC 02-01-2022
535 of 756
5722958.2s Page 3
41 KAISER CEMENT CORP, 2401 STEVENS CREEK B CA ENVIROSTOR, CA HIST CORTESE Higher 5250, 0.994, West 40 ACRIAN INC 10131 BUBB RD SEMS-ARCHIVE, CA ENVIROSTOR, CA HIST UST, RCRA... Lower 5138, 0.973, East

MAPPED SITES SUMMARY
Target Property Address:
22690 STEVENS CREEK BOULEVARD
CUPERTINO, CA 95014
Click on Map ID to see full detail.

MAP RELATIVE DIST (ft. & mi.)

ID DATABASE ACRONYMS ELEVATION DIRECTIONSITE NAME ADDRESS 536
CC 02-01-2022
536 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 4

TARGET PROPERTY SEARCH RESULTS
The target property was not listed in any of the databases searched by EDR.

DATABASES WITH NO MAPPED SITES
No mapped sites were found in EDR’s search of available ("reasonably ascertainable ") government records either on the target property or within the search radius around the target property for the following databases:

STANDARD ENVIRONMENTAL RECORDS
Federal NPL site list
NPL National Priority List
Proposed NPL Proposed National Priority List Sites
NPL LIENS Federal Superfund Liens
Federal Delisted NPL site list
Delisted NPL National Priority List Deletions
Federal CERCLIS list
FEDERAL FACILITY Federal Facility Site Information listing SEMS Superfund Enterprise Management System
Federal RCRA CORRACTS facilities list
CORRACTS Corrective Action Report
Federal RCRA non-CORRACTS TSD facilities list
RCRA-TSDF RCRA - Treatment, Storage and Disposal
Federal RCRA generators list
RCRA-LQG RCRA - Large Quantity Generators
RCRA-CESQG RCRA - Conditionally Exempt Small Quantity Generator Federal institutional controls / engineering controls registries LUCIS Land Use Control Information System
US ENG CONTROLS Engineering Controls Sites List
US INST CONTROL Sites with Institutional Controls
Federal ERNS list
ERNS Emergency Response Notification System
537
CC 02-01-2022
537 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 5
State- and tribal - equivalent NPL
CA RESPONSE State Response Sites
State and tribal landfill and/or solid waste disposal site lists CA SWF/LF Solid Waste Information System
State and tribal leaking storage tank lists
INDIAN LUST Leaking Underground Storage Tanks on Indian Land State and tribal registered storage tank lists
FEMA UST Underground Storage Tank Listing
CA AST Aboveground Petroleum Storage Tank Facilities
INDIAN UST Underground Storage Tanks on Indian Land
State and tribal voluntary cleanup sites
INDIAN VCP Voluntary Cleanup Priority Listing
State and tribal Brownfields sites
CA BROWNFIELDS Considered Brownfieds Sites Listing

ADDITIONAL ENVIRONMENTAL RECORDS
Local Brownfield lists
US BROWNFIELDS A Listing of Brownfields Sites
Local Lists of Landfill / Solid Waste Disposal Sites
CA WMUDS/SWAT Waste Management Unit Database
CA SWRCY Recycler Database
CA HAULERS Registered Waste Tire Haulers Listing
INDIAN ODI Report on the Status of Open Dumps on Indian Lands DEBRIS REGION 9 Torres Martinez Reservation Illegal Dump Site Locations ODI Open Dump Inventory
IHS OPEN DUMPS Open Dumps on Indian Land
Local Lists of Hazardous waste / Contaminated Sites
US HIST CDL Delisted National Clandestine Laboratory Register CA HIST Cal-Sites Historical Calsites Database
CA SCH School Property Evaluation Program
CA CDL Clandestine Drug Labs
CA Toxic Pits Toxic Pits Cleanup Act Sites
US CDL National Clandestine Laboratory Register
CA PFAS PFAS Contamination Site Location Listing
Local Land Records
CA LIENS Environmental Liens Listing
538
CC 02-01-2022
538 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 6
LIENS 2 CERCLA Lien Information
CA DEED Deed Restriction Listing
Records of Emergency Release Reports
HMIRS Hazardous Materials Information Reporting System
CA CHMIRS California Hazardous Material Incident Report System CA LDS Land Disposal Sites Listing
CA MCS Military Cleanup Sites Listing
CA SPILLS 90 SPILLS 90 data from FirstSearch
Other Ascertainable Records
FUDS Formerly Used Defense Sites
DOD Department of Defense Sites
SCRD DRYCLEANERS State Coalition for Remediation of Drycleaners Listing US FIN ASSUR Financial Assurance Information

EPA WATCH LIST EPA WATCH LIST
2020 COR ACTION 2020 Corrective Action Program List
TSCA Toxic Substances Control Act
TRIS Toxic Chemical Release Inventory System
SSTS Section 7 Tracking Systems
ROD Records Of Decision
RMP Risk Management Plans
RAATS RCRA Administrative Action Tracking System
PRP Potentially Responsible Parties
PADS PCB Activity Database System
ICIS Integrated Compliance Information System
FTTS FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act)
MLTS Material Licensing Tracking System
COAL ASH DOE Steam-Electric Plant Operation Data
COAL ASH EPA Coal Combustion Residues Surface Impoundments List PCB TRANSFORMER PCB Transformer Registration Database
RADINFO Radiation Information Database
HIST FTTS FIFRA/TSCA Tracking System Administrative Case Listing DOT OPS Incident and Accident Data
CONSENT Superfund (CERCLA) Consent Decrees
INDIAN RESERV Indian Reservations
FUSRAP Formerly Utilized Sites Remedial Action Program
UMTRA Uranium Mill Tailings Sites
LEAD SMELTERS Lead Smelter Sites
US AIRS Aerometric Information Retrieval System Facility Subsystem US MINES Mines Master Index File
ABANDONED MINES Abandoned Mines
UXO Unexploded Ordnance Sites
DOCKET HWC Hazardous Waste Compliance Docket Listing
FUELS PROGRAM EPA Fuels Program Registered Listing
CA BOND EXP. PLAN Bond Expenditure Plan
CA DRYCLEANERS Cleaner Facilities
CA ENF Enforcement Action Listing
CA Financial Assurance Financial Assurance Information Listing

CA ICE ICE
CA HWT Registered Hazardous Waste Transporter Database
CA MINES Mines Site Location Listing
539
CC 02-01-2022
539 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 7
CA MWMP Medical Waste Management Program Listing
CA PEST LIC Pesticide Regulation Licenses Listing
CA PROC Certified Processors Database
CA HAZMAT Hazardous Material Facilities
CA UIC UIC Listing

CA UIC GEO UIC GEO (GEOTRACKER)
CA WASTEWATER PITS Oil Wastewater Pits Listing
CA WDS Waste Discharge System
CA WIP Well Investigation Program Case List

CA MILITARY PRIV SITES MILITARY PRIV SITES (GEOTRACKER)

CA PROJECT PROJECT (GEOTRACKER)
CA WDR Waste Discharge Requirements Listing

CA OTHER OIL GAS OTHER OIL & GAS (GEOTRACKER)

CA PROD WATER PONDS PROD WATER PONDS (GEOTRACKER)

CA SAMPLING POINT SAMPLING POINT (GEOTRACKER)
CA WELL STIM PROJ Well Stimulation Project (GEOTRACKER)

EDR HIGH RISK HISTORICAL RECORDS
EDR Exclusive Records
EDR MGP EDR Proprietary Manufactured Gas Plants
EDR Hist Cleaner EDR Exclusive Historical Cleaners

EDR RECOVERED GOVERNMENT ARCHIVES
Exclusive Recovered Govt. Archives
CA RGA LF Recovered Government Archive Solid Waste Facilities List CA RGA LUST Recovered Government Archive Leaking Underground Storage Tank SURROUNDING SITES: SEARCH RESULTS
Surrounding sites were identified in the following databases.

Elevations have been determined from the USGS Digital Elevation Model and should be evaluated on a relative (not an absolute) basis. Relative elevation information between sites of close proximity should be field verified. Sites with an elevation equal to or higher than the target property have been differentiated below from sites with an elevation lower than the target property.

Page numbers and map identification numbers refer to the EDR Radius Map report where detailed data on individual sites can be reviewed.

Sites listed in bold italics are in multiple databases.

Unmappable (orphan) sites are not considered in the foregoing analysis.

STANDARD ENVIRONMENTAL RECORDS
Federal CERCLIS NFRAP site list
SEMS-ARCHIVE: SEMS-ARCHIVE (Superfund Enterprise Management System Archive) tracks sites that have no further interest under the Federal Superfund Program based on available information. The list was formerly 540
CC 02-01-2022
540 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 8
known as the CERCLIS-NFRAP, renamed to SEMS ARCHIVE by the EPA in 2015. EPA may perform a minimal level of assessment work at a site while it is archived if site conditions change and/or new information becomes available. Archived sites have been removed and archived from the inventory of SEMS sites. Archived status indicates that, to the best of EPA’s knowledge, assessment at a site has been completed and that EPA has determined no further steps will be taken to list the site on the National Priorities List (NPL), unless information indicates this decision was not appropriate or other considerations require a recommendation for listing at a later time. The decision does not necessarily mean that there is no hazard associated with a given site; it only means that. based upon available information, the location is not judged to be potential NPL site.

A review of the SEMS-ARCHIVE list, as provided by EDR, and dated 04/11/2019 has revealed that there is 1 SEMS-ARCHIVE site within approximately 0.5 miles of the target property.

PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____ KAISER ALUMINUM FOIL 23333 STEVENS CREEK W 1/4 - 1/2 (0.366 mi.) E37 103 Site ID: 0901179
EPA Id: CAD009155284
State- and tribal - equivalent CERCLIS
CA ENVIROSTOR: The Department of Toxic Substances Control’s (DTSC’s) Site Mitigation and Brownfields Reuse Program’s (SMBRP’s) EnviroStor database identifes sites that have known contamination or sites for which there may be reasons to investigate further. The database includes the following site types: Federal Superfund sites (National Priorities List (NPL)); State Response, including Military Facilities and State Superfund; Voluntary Cleanup; and School sites. EnviroStor provides similar information to the information that was available in CalSites, and provides additional site information, including, but not limited to, identification of formerly-contaminated properties that have been released for reuse, properties where environmental deed restrictions have been recorded to prevent inappropriate land uses, and risk characterization information that is used to assess potential impacts to public health and the environment at contaminated sites.

A review of the CA ENVIROSTOR list, as provided by EDR, and dated 04/29/2019 has revealed that there are 4 CA ENVIROSTOR sites within approximately 1 mile of the target property.

PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____ KAISER ALUMINUM AND 23333 STEVENS CREEK W 1/4 - 1/2 (0.366 mi.) E36 100 Facility Id: 43330001
Status: Refer: RWQCB
KAISER CEMENT CORP, 2401 STEVENS CREEK B W 1/2 - 1 (0.994 mi.) 41 117 Facility Id: 43350079
Status: Refer: Other Agency
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ BLACKBERRY FARM PLAY 21979 SAN FERNANDO D ESE 1/4 - 1/2 (0.485 mi.) 38 108 Facility Id: 60001205
Status: No Further Action
ACRIAN INC 10131 BUBB RD E 1/2 - 1 (0.973 mi.) 40 111 Facility Id: 80001710
Status: Inactive - Needs Evaluation
541
CC 02-01-2022
541 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 9
State and tribal leaking storage tank lists
CA LUST: Leaking Underground Storage Tank (LUST) Sites included in GeoTracker. GeoTracker is the Water Boards data management system for sites that impact, or have the potential to impact, water quality in California, with emphasis on groundwater.

A review of the CA LUST list, as provided by EDR, has revealed that there are 7 CA LUST sites within approximately 0.5 miles of the target property.

PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____ SANTA CLARA COUNTY F 22620 STEVENS CREEK W 0 - 1/8 (0.063 mi.) C18 70 Database: LUST, Date of Government Version: 12/10/2018
Database: LUST REG 2, Date of Government Version: 09/30/2004 Database: LUST SANTA CLARA, Date of Government Version: 03/03/2014 Status: Completed - Case Closed
Facility Status: Case Closed
Date Closed: 03/30/1998
Global Id: T0608502037
SCVWD ID: 07S2W15F02F
date9: 3/30/1998
MONTA VISTA SUBSTATI 10110 CALIFORNIA OAK NW 1/4 - 1/2 (0.327 mi.) 35 96 Database: LUST, Date of Government Version: 12/10/2018
Database: LUST SANTA CLARA, Date of Government Version: 03/03/2014 Status: Completed - Case Closed
Date Closed: 11/20/2006
Global Id: T0608594350
SCVWD ID: 07S2W15F03F
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B8 16 Database: LUST REG 2, Date of Government Version: 09/30/2004 Facility Status: Pollution Characterization
CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B10 18 Database: LUST, Date of Government Version: 12/10/2018
Database: LUST SANTA CLARA, Date of Government Version: 03/03/2014 Status: Open - Verification Monitoring
Global Id: T0608548766
SCVWD ID: 07S2W15K01F
ARCO #6182 10121 N FOOTHILL BLV N 0 - 1/8 (0.119 mi.) D23 77 Database: LUST REG 2, Date of Government Version: 09/30/2004 Facility Status: Case Closed
date9: 7/29/1996
FOOTHILL AUTO SERVIC 10121 N. FOOTHILL BO N 0 - 1/8 (0.119 mi.) D29 82 Database: LUST, Date of Government Version: 12/10/2018
Database: LUST SANTA CLARA, Date of Government Version: 03/03/2014 Status: Completed - Case Closed
Date Closed: 07/29/1996
Global Id: T10000004993
Global Id: T0608500152
SCVWD ID: 07S2W15F04F
SCVWD ID: 07S2W15F01F
FACCIOLA RESIDENCE 22371 CUPERTINO RD ENE 1/8 - 1/4 (0.189 mi.) 34 95 Database: LUST REG 2, Date of Government Version: 09/30/2004 Database: LUST SANTA CLARA, Date of Government Version: 03/03/2014 542
CC 02-01-2022
542 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 10
Facility Status: Case Closed
Date Closed: 01/09/1995
SCVWD ID: 07S2W15G01F
date9: 1/9/1995
CA CPS-SLIC: Cleanup Program Sites (CPS; also known as Site Cleanups [SC] and formerly known as Spills, Leaks, Investigations, and Cleanups [SLIC] sites) included in GeoTracker. GeoTracker is the Water Boards data management system for sites that impact, or have the potential to impact, water quality in California, with emphasis on groundwater.

A review of the CA CPS-SLIC list, as provided by EDR, has revealed that there are 2 CA CPS-SLIC sites within approximately 0.5 miles of the target property.

PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____ KAISER ALUMINUM AND 23333 STEVENS CREEK W 1/4 - 1/2 (0.366 mi.) E36 100 Database: SLIC REG 2, Date of Government Version: 09/30/2004 Facility Id: 43S0663
PRIVATE RESIDENCE PRIVATE RESIDENCE S 1/4 - 1/2 (0.495 mi.) 39 110 Database: CPS-SLIC, Date of Government Version: 12/10/2018 Facility Status: Completed - Case Closed
Global Id: T10000003039
CA HIST LUST: A listing of open and closed leaking underground storage tanks. This listing is no longer updated by the county. Leaking underground storage tanks are now handled by the Department of Environmental Health.

A review of the CA HIST LUST list, as provided by EDR, and dated 03/29/2005 has revealed that there are 4 CA HIST LUST sites within approximately 0.5 miles of the target property.

PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____ SANTA CLARA COUNTY F 22620 STEVENS CREEK W 0 - 1/8 (0.063 mi.) C18 70 SCVWD ID: 07S2W15F02
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B8 16 SCVWD ID: 07S2W15K01
ARCO #6182 10121 N FOOTHILL BLV N 0 - 1/8 (0.119 mi.) D23 77 SCVWD ID: 07S2W15F01
FACCIOLA RESIDENCE 22371 CUPERTINO RD ENE 1/8 - 1/4 (0.189 mi.) 34 95 SCVWD ID: 07S2W15G01
State and tribal registered storage tank lists
CA UST: The Underground Storage Tank database contains registered USTs. USTs are regulated under Subtitle I of the Resource Conservation and Recovery Act (RCRA). The data come from the State Water Resources Control Board’s Hazardous Substance Storage Container Database.

A review of the CA UST list, as provided by EDR, has revealed that there are 4 CA UST sites within 543
CC 02-01-2022
543 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 11
approximately 0.25 miles of the target property.

PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____ MONTA VISTA FIRE STA 22620 STEVENS CREEK W 0 - 1/8 (0.063 mi.) C17 69 Database: UST, Date of Government Version: 12/10/2018
Facility Id: 45
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B11 46 Database: UST, Date of Government Version: 12/10/2018
BEACON SERVICE STATI 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B13 48 Database: UST, Date of Government Version: 12/10/2018
Facility Id: 44
ARCO SERVICE STATION 10121 N FOOTHILL BL N 0 - 1/8 (0.119 mi.) D28 82 Database: UST, Date of Government Version: 12/10/2018
Facility Id: 35
State and tribal voluntary cleanup sites
CA VCP: Contains low threat level properties with either confirmed or unconfirmed releases and the project proponents have request that DTSC oversee investigation and/or cleanup activities and have agreed to provide coverage for DTSC’s costs.

A review of the CA VCP list, as provided by EDR, and dated 04/29/2019 has revealed that there is 1 CA VCP site within approximately 0.5 miles of the target property.

PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ BLACKBERRY FARM PLAY 21979 SAN FERNANDO D ESE 1/4 - 1/2 (0.485 mi.) 38 108 Status: No Further Action
Facility Id: 60001205

ADDITIONAL ENVIRONMENTAL RECORDS
Local Lists of Hazardous waste / Contaminated Sites
CA CERS HAZ WASTE: List of sites in the California Environmental Protection Agency (CalEPA) Regulated Site Portal which fall under the Hazardous Chemical Management, Hazardous Waste Onsite Treatment, Household Hazardous Waste Collection, Hazardous Waste Generator, and RCRA LQ HW Generator programs.

A review of the CA CERS HAZ WASTE list, as provided by EDR, and dated 04/09/2019 has revealed that there are 4 CA CERS HAZ WASTE sites within approximately 0.25 miles of the target property.

PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____ DONNA COTNER DDS 10011 N FOOTHILL BL NW 0 - 1/8 (0.021 mi.) A1 9 PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B10 18 544
CC 02-01-2022
544 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 12
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ CUPERTINO AUTO REPAI 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B14 48 ACADIA VETERINARY CL 10012 N FOOTHILL BL NE 0 - 1/8 (0.038 mi.) B15 57 Local Lists of Registered Storage Tanks
CA SWEEPS UST: Statewide Environmental Evaluation and Planning System. This underground storage tank listing was updated and maintained by a company contacted by the SWRCB in the early 1990’s. The listing is no longer updated or maintained. The local agency is the contact for more information on a site on the SWEEPS list.

A review of the CA SWEEPS UST list, as provided by EDR, and dated 06/01/1994 has revealed that there are 4 CA SWEEPS UST sites within approximately 0.25 miles of the target property.

PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____ SANTA CLARA COUNTY F 22620 STEVENS CREEK W 0 - 1/8 (0.063 mi.) C18 70 Status: A
Tank Status: A
Comp Number: 298
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ BEACON SERVICE STATI 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B6 13 Status: A
Tank Status: A
Comp Number: 39475
FOOTHILL AUTO SERVIC 10121 N. FOOTHILL BO N 0 - 1/8 (0.119 mi.) D29 82 Status: A
Tank Status: A
Comp Number: 27102
FACCIOLA RESIDENCE 22371 CUPERTINO RD ENE 1/8 - 1/4 (0.189 mi.) 34 95 Comp Number: 337
CA HIST UST: Historical UST Registered Database.

A review of the CA HIST UST list, as provided by EDR, and dated 10/15/1990 has revealed that there are 4 CA HIST UST sites within approximately 0.25 miles of the target property.

PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ MOBIL SERVICE STATIO 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B7 15 Facility Id: 00000039475
G JENSENS INC 10121 NORTH FOOTHILL N 0 - 1/8 (0.119 mi.) D24 78 G. JENSEN’S INC. 10121 N FOOTHILL BLV N 0 - 1/8 (0.119 mi.) D26 80 Facility Id: 00000060177
FOOTHILL AUTO SERVIC 10121 N. FOOTHILL BO N 0 - 1/8 (0.119 mi.) D29 82 Facility Id: 00000027102
545
CC 02-01-2022
545 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 13
CA FID UST: The Facility Inventory Database contains active and inactive underground storage tank locations. The source is the State Water Resource Control Board.

A review of the CA FID UST list, as provided by EDR, and dated 10/31/1994 has revealed that there is 1 CA FID UST site within approximately 0.25 miles of the target property.

PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ BEACON SERVICE STATI 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B6 13 Facility Id: 43001931
Status: A
CA CERS TANKS: List of sites in the California Environmental Protection Agency (CalEPA) Regulated Site Portal which fall under the Aboveground Petroleum Storage and Underground Storage Tank regulatory programs.

A review of the CA CERS TANKS list, as provided by EDR, and dated 04/09/2019 has revealed that there are 2 CA CERS TANKS sites within approximately 0.25 miles of the target property.

PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____ MONTA VISTA FIRE STA 22620 STEVENS CREEK W 0 - 1/8 (0.063 mi.) C16 61 PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B10 18 Other Ascertainable Records
RCRA NonGen / NLR: RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Non-Generators do not presently generate hazardous waste.

A review of the RCRA NonGen / NLR list, as provided by EDR, and dated 03/25/2019 has revealed that there are 4 RCRA NonGen / NLR sites within approximately 0.25 miles of the target property.

PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____ LIFETIME DENTAL CARE 10011 N FOOTHILL BLV NW 0 - 1/8 (0.021 mi.) A3 11 EPA ID:: CAL000441261
CAMBRIDGE PROPERTY M 22731 STEVENS CREEK W 1/8 - 1/4 (0.174 mi.) 33 93 EPA ID:: CAC002981476
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ CUPERTINO AUTO CARE 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B9 16 EPA ID:: CAL000419408
DAVID RANNELLS 10073 AMADOR OAK COU NNW 1/8 - 1/4 (0.151 mi.) 32 92 EPA ID:: CAC002974544
546
CC 02-01-2022
546 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 14
CA Cortese: The sites for the list are designated by the State Water Resource Control Board (LUST), the Integrated Waste Board (SWF/LS), and the Department of Toxic Substances Control (Cal-Sites).

A review of the CA Cortese list, as provided by EDR, and dated 03/25/2019 has revealed that there is 1 CA Cortese site within approximately 0.5 miles of the target property.

PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B10 18 Cleanup Status: OPEN - VERIFICATION MONITORING
CA CUPA Listings: A listing of sites included in the county’s Certified Unified Program Agency database.

California’s Secretary for Environmental Protection established the unified hazardous materials and hazardous waste regulatory program as required by chapter 6.11 of the California Health and Safety Code. The Unified Program consolidates the administration, permits, inspections, and enforcement activities.

A review of the CA CUPA Listings list, as provided by EDR, has revealed that there are 10 CA CUPA Listings sites within approximately 0.25 miles of the target property.

PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____ DONNA COTNER DDS 10011 N FOOTHILL BL NW 0 - 1/8 (0.021 mi.) A1 9 Database: CUPA SANTA CLARA, Date of Government Version: 05/16/2019 GARFIELD FAMILY CHIR 10011 N FOOTHILL BL NW 0 - 1/8 (0.021 mi.) A2 11 Database: CUPA SANTA CLARA, Date of Government Version: 05/16/2019 LIFETIME DENTAL CARE 10011 N FOOTHILL BL NW 0 - 1/8 (0.021 mi.) A4 12 Database: CUPA SANTA CLARA, Date of Government Version: 05/16/2019 PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B10 18 Database: CUPA SANTA CLARA, Date of Government Version: 05/16/2019 CUPERTINO AUTO REPAI 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B14 48 Database: CUPA SANTA CLARA, Date of Government Version: 05/16/2019 ACADIA VETERINARY CL 10012 N FOOTHILL BL NE 0 - 1/8 (0.038 mi.) B15 57 Database: CUPA SANTA CLARA, Date of Government Version: 05/16/2019 FOOTHILL VALERO 10121 N FOOTHILL BL N 0 - 1/8 (0.119 mi.) D21 76 Database: CUPA SANTA CLARA, Date of Government Version: 05/16/2019 FREEMANS AUTO SERVIC 10121 N FOOTHILL BL N 0 - 1/8 (0.119 mi.) D22 76 Database: CUPA SANTA CLARA, Date of Government Version: 05/16/2019 FOOTHILL AUTO SERVIC 10121 N FOOTHILL BL N 0 - 1/8 (0.119 mi.) D25 80 Database: CUPA SANTA CLARA, Date of Government Version: 05/16/2019 AAA AUTO REPAIR AND 10121 N FOOTHILL BL N 0 - 1/8 (0.119 mi.) D27 81 Database: CUPA SANTA CLARA, Date of Government Version: 05/16/2019 CA HIST CORTESE: The sites for the list are designated by the State Water Resource Control Board [LUST], the Integrated Waste Board [SWF/LS], and the Department of Toxic Substances Control [CALSITES]. This listing is no longer updated by the state agency.

A review of the CA HIST CORTESE list, as provided by EDR, and dated 04/01/2001 has revealed that 547
CC 02-01-2022
547 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 15
there are 5 CA HIST CORTESE sites within approximately 0.5 miles of the target property.

PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____ SANTA CLARA COUNTY F 22620 STEVENS CREEK W 0 - 1/8 (0.063 mi.) C18 70 Reg Id: 43-2219
KAISER ALUMINUM AND 23333 STEVENS CREEK W 1/4 - 1/2 (0.366 mi.) E36 100 Reg Id: 43-0770
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ CUPERTINO BEACON 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B10 18 Reg Id: 43-0455
ARCO 10121 FOOTHILL N 0 - 1/8 (0.113 mi.) D19 75
Reg Id: 43-0084
FACCIOLA RESIDENCE 22371 CUPERTINO RD ENE 1/8 - 1/4 (0.189 mi.) 34 95 Reg Id: 43-1785
CA HWP: Detailed information on permitted hazardous waste facilities and corrective action ("cleanups") tracked in EnviroStor.

A review of the CA HWP list, as provided by EDR, and dated 05/20/2019 has revealed that there is 1 CA HWP site within approximately 1 mile of the target property.

PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ ACRIAN INC 10131 BUBB RD E 1/2 - 1 (0.973 mi.) 40 111 EPA Id: CAD092205889
Cleanup Status: CLOSED
CA Notify 65: Listings of all Proposition 65 incidents reported to counties by the State Water Resources Control Board and the Regional Water Quality Control Board. This database is no longer updated by the reporting agency.

A review of the CA Notify 65 list, as provided by EDR, and dated 03/18/2019 has revealed that there is 1 CA Notify 65 site within approximately 1 mile of the target property.

PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ ARCO SERVICE STATION 10121 NORTH FOOTHILL N 0 - 1/8 (0.119 mi.) D30 92

EDR HIGH RISK HISTORICAL RECORDS
EDR Exclusive Records
EDR Hist Auto: EDR has searched selected national collections of business directories and has collected listings of potential gas station/filling station/service station sites that were available to EDR researchers. EDR’s review was limited to those categories of sources that might, in EDR’s opinion, include gas station/filling station/service station establishments. The categories reviewed included, but were not 548
CC 02-01-2022
548 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 16
limited to gas, gas station, gasoline station, filling station, auto, automobile repair, auto service station, service station, etc. This database falls within a category of information EDR classifies as "High Risk Historical Records", or HRHR. EDR’s HRHR effort presents unique and sometimes proprietary data about past sites and operations that typically create environmental concerns, but may not show up in current government records searches.

A review of the EDR Hist Auto list, as provided by EDR, has revealed that there are 4 EDR Hist Auto sites within approximately 0.125 miles of the target property.

PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ ACTION AUTO SERVICE 10010 FOOTHILL BLVD NE 0 - 1/8 (0.026 mi.) A5 13 JOHNS MOBIL SERVICE 22510 STEVENS CREEK E 0 - 1/8 (0.034 mi.) B12 46 FOOTHILL AUTO SERVIC 10121 N FOOTHILL BLV N 0 - 1/8 (0.119 mi.) D20 75 ACED ACRO SERVICE 10121 FOOTHILL N 0 - 1/8 (0.119 mi.) D31 92 549
CC 02-01-2022
549 of 756

EXECUTIVE SUMMARY
TC5722958.2s EXECUTIVE SUMMARY 17
Due to poor or inadequate address information, the following sites were not mapped. Count: 6 records.

Site Name Database(s)____________ ____________
CA CDL

KAISER CEMENT CORP PERMANENTE PLAN SEMS
1X STEVENS CREEK QUARRY CA HAZNET

STEVENS CREEK DAM FINDS
BRIDGE 37C0571 OVER STEVENS CREEK FINDS
STEVENS CREEK QUARRY, INC. US MINES
550
CC 02-01-2022
550 of 756
551
CC 02-01-2022
551 of 756
........................................................................................................................

A PPENDIX E :

P HASE I I E NVIRONMENTAL S ITE

A SSESSMENT
552
CC 02-01-2022
552 of 756
........................................................................................................................

553
CC 02-01-2022
553 of 756
Phase II Environmental Site Assessment Report
Prepared for
Alan Enterprise LLC.
22690 Stevens Creek Boulevard,
Cupertino, California 95014
(Three parcels with APNs 342-14-04, 342-14-05, and 342-14-66) By
Achievement Engineering Corp.
2455 Autumnvale Drive, Unit E
San Jose, California, 95134
Project Number: 3974
Date: October 17, 2019
554
CC 02-01-2022
554 of 756
Project Number: 3974
Date: October 17, 2019
Alan Enterprise LLC.

Mr. Ali Mozafari
Subject: Phase II Environmental Site Assessment Report
22690 Stevens Creek Boulevard,
Cupertino, California 95014
(Three parcels with APNs 342-14
-04, 342-14-05, and 342-14-66)
Dear Sir,
Achievement Engineering Corp. (AEC) is pleased to submit this Phase II Environmental Site Assessment Report for the above-referenced project. The purpose of this study was to evaluate the subsurface conditions at the subject site and for the proposed development.

The subject site is
currently owned by Bateh Brothers Liquors and Mini Mart (George and Nahida Bateh) and is a land totaling of three parcels, approximately 0. 75 acre located on the west south corner of Stevens Creek Blvd. and Foothill Blvd. intersection, at 22690 Stevens Creek Boulevard, Cupertino, California 95014, within mixed-use plan development (General Commercial) zone of Cupertino. The site itself has not been listed in any searched data bases
(Please refer to reference 1).

In May 2017, EIS performed a limited Phase II investigation to assess the impact of the neighboring site (Cupertino Beacon at 22510 Stevens Creek Blvd.) at this property. Above-ESL benzene concentration in soil vapor was found in the borings at the subject site at that time.

There is one site listed on various databases in the close proximity to and at higher elevation of the subject site;
 Santa Clara County Fire Station (Also recorded as Monta Vista Fire station) at 22620 Stevens Creek Blvd., 332 ft. west of the subject site.

There are two sites in the close proximity of the site, but at lower elevations:
 Cupertino Beacon at 22510 Stevens Creek Blvd., 180 ft. east of the subject property.  Foothill Auto Services at 10121 N. Foothill Blvd., 620 ft., north of the subject property. 555
CC 02-01-2022
555 of 756
The review of the aerial photos and historical use of the property as an orchard, from at least 1939 to 1950, indicate that there is also a potential of metals and pesticides existing in shallow site soil.

Above-ESL benzene concentration in soil vapor was found in the borings at the subject site is also a recognized environmental conditions. Besides, the open LUST case and documented soil, groundwater, and soil vapor contamination at neighboring property 22510 Stevens Creek Blvd. (Cupertino Beacon) represents an offsite controlled recognized environmental condition. To assess the impacts of the neighboring site at the subject site, conducting a limited Phase II investigation was recommended.

This subsurface investigation program was designed to evaluate the soil and water conditions regarding the above mentioned contaminants.

Respectfully Submitted,
Achievement Engineering Corp.

Sadaf Safaai, PE
Project Engineer
Copies: Alan Enterprise LLC.

Mr. Ali Mozafari
556
CC 02-01-2022
556 of 756
ii
Ach
ievement Engineering
Table of Contents
1- INTRODUCTION .............................................................................................................................. 1 2- SCOPE OF WORK ............................................................................................................................ 2 3- PROPERTY DESCRIPTION ............................................................................................................ 2 3-1- Topography and Geological Setting ............................................................................................. 3 4- PROJECT INVESTIGATION .......................................................................................................... 3 4-1- Field Investigation and Exploratory Boreholes ............................................................................ 4 4-2- Laboratory Analysis ..................................................................................................................... 4 5- ENVIRONMENTAL SCREENING LEVELS................................................................................. 5 6- INVESTIGATION RESULTS AND RECOMMENDATIONS ..................................................... 6 6-1- Soil and Water: Organics .............................................................................................................. 6 6-2- Soil and Water: Heavy Metals ...................................................................................................... 7 6-3- Soil Vapor ..................................................................................................................................... 7 6-4- Recommendations ........................................................................................................................ 9 7- LIMITATIONS ................................................................................................................................... 9 8- REFERENCES ................................................................................................................................. 10 Exhibit I – Site Location Plan
Exhibit II – Environmental
Screening Levels and STLC and
TTLC Regulatory Limits Tables
Exhibit III – Analytical Test
Results
557
CC 02-01-2022
557 of 756
1 Achievement Engineering
1- INTRODUCTION
Achievement Engineering Corp. (AEC) was retained by Alan Enterprise LLC. to conduct a Phase II Environmental Site Assessment (Phase II ESA) for 22690 Stevens Creek Boulevard, Cupertino, California 95014, (three parcels with APNs 342-14-04, 342-14-05, and 342-14-66).

The attached Figure M01, Exhibit I shows the general location of the subject property. Providing technical assistance to Alan Enterprise LLC, AEC is contracted to assess the subject property for potential contaminants of concern, namely total petroleum hydrocarbons as gasoline, diesel, and motor oil (TPH- g/-d/-o), the aromatic hydrocarbons benzene, toluene, ethylbenzene total xylenes (BTEX) and MTBE. Soil vapor samples were analyzed for TPH and benzene. The samples at B3 ha
ve been tested for the presence of the pesticides and heavy metals. The Phase II ESA was performed in conformance with the scope and limitations of the American Society of Testing and Materials (ASTM) Standard Designation E1903-1 1, Standard Practice for Environmental Site Assessments: Phase II Environmental Site Assessment Process. Any limitations have been practiced, is summarized in section7.

The Phase II ESA activities consisted of the drilling of three (3 ) exploratory borings and the collection of soil samples for submittal to an analytical lab for analyses for potential contaminants of concern.

Soil vapor sampling was also performed during this project following the guidelines of the Department of Toxic Substances Control’s (DTSC) “Guidance for the Evaluation and Mitigation of Subsurface Vapor Intrusion to Indoor Air” (DTSC, 2011) and “Advisory – Active Soil Gas Investigations” (DTSC et al, 2015). Temporary soil vapor probes were installed in borings B-1 , B-2 and B-3 at a depth of 5.0 ft. bgs. The samples were taken on September 18 , 2019. Utilizing 1 L Summa Canisters at negative pressure. Three ( 3) samples were taken from each of the three (3) boreholes. A purge canister was used to purge the tubes first to minimize contamination from above layers.

This report documents the activities and results of the environmental investigation conducted by AEC
on September 11, 2019 and September 18, 2019.

The following report highlights the significant findings and conclusions representing our best professional judgment based on the information and data available to us during the course of this investigation.
558
CC 02-01-2022
558 of 756
2 Achievement Engineering
2- SCOPE OF WORK
The Phase II ESA was performed in general accordance with the scope of work in AEC Fee Proposal, Phase II Environmental Site Assessment, f22690 Stevens Creek Boulevard, Cupertino, California 95014 (three parcels with APNs 342-14-04, 342 -14-05, and 342-14 -66). The scope of
work was to evaluate shallow subsurface soil conditions of the subject site (at specific new development location) with respect to potential contaminants of concern.

The scope of work for this investigation included the following:
 The drilling o n 11 September, 2019 of three (3 ) exploratory borings to collect soil samples for laboratory analyses.
 Installing micro soil vapor probe on 11 September, 2019.  Collecting soil vapor samples in canisters on 18 September 2019.  Laboratory analysis of the soil samples for potential contaminants of concern, namely TPH gasoline, TPH diesel, TPH motor oil, MTBE, BTEX, heavy metals and pesticides.  Laboratory analysis of soil vapor samples for TPH and benzene.  Preparation of this technical report documenting the investigation activities and results. 3- PROPERTY DESCRIPTION
The subject site is currently owned by Bateh Brothers Liquors and Mini Mart (George and Nahida Bateh) and is a land totaling 0.75
acre (combined three parcels) located on the west south corner of Stevens Creek Blvd. and Foothill Blvd. intersection at 22690 Stevens Creek Boulevard, Cupertino, California 95014, within mixed use plan development (General Commercial) zone of Cupertino.

The site itself has not been listed in any data bases. Review of the historical data available for the subject site reveals that most probably the development of the site, as is, took place between 1950
and 1956 (based on aerial photos), the first city directory listing for this property belongs to 1975, before that, this address does not exist in 1970 and 1968 listings. Bateh Brothers Liquors and Mini Mart has been listed in 2014 back to 1980 listings. In 1975 directory, a Frank’s Liquor and Grocery Store has been listed. Also an interview conducted by others in 2017 reveals that before 1976, the place was used as a bar. No building permit was found indicating any other use for this property.

Per aerial photos, in 1939 an orchard was in the property that cannot be observed in 1950 aerial photo. Sometime between 1939 and 1950 the trees were gradually cleared, starting from north to south. The existence of fertilizers, pesticides and metals are possible in the shallow soil due to this historical land use.
559
CC 02-01-2022
559 of 756
3 Achievement Engineering
Also, rev reveals that for the most part, uses were mixed residential and commercial (a veterinary clinic has existed since, at least 1989, at 10012 N. Foothill Blvd. and Beacon Service Station has be
en in service under different names as follows:
1995- to Present -Cupertino Beacon Service Station, Cupertino Auto Care 1989- Foothill Mobil
1981-1984 -McElroy Mobil Service
1976 -D&D Mobil Service
1971 -Johns Mobil Service, Mobil Oil Corporation
1968 -Johns Mobil
3-1- Topography and Geological Setting
The United States Geological Survey (USGS) maps were reviewed. The topography of the subject site is relatively flat and general topographic gradient is NNE. The site itself is at an approximate average elevation of 386.0 feet above mean sea level.

The project site is located within the Coast Range Geomorphic Province. Local uplift of the Santa Cruz Mountains within the last 2 to 3 million years has occurred due to a restraining bend of the San Andreas Fault, producing transpressional forces across the plate boundary. Thrust faults bound the San Andreas Fault are responsible for uplift of the range. The range is characterized by rugged hills with moderate relief, steep valleys, and locally steep hillsides abutting drainages. East-flowing drainages result in dissection of the mountain range and alluvial deposition within the San Francisco Bay structural trough.

Soils encountered during the investigation included interbedded gravelly sand, silty sand, sandy gravel, clayey sand, and sandy silt to an explored depth of approximately 40ft bgs. Groundwater was not encountered during this investigation, however in previous explorations by others, groundwater had been encountered between 20 and 30 ft. bgs.
4- PROJECT INVESTIGATION
Prior to the field activities, AEC attempted to secure a Soil Boring Permit from the Santa Clara Department of Environmental Health. No need for permitting was confirmed by the DEH.

The proposed boring locations were marked on the ground with white paint. Underground Service Alert (USA) was notified to provide the required utility clearance. The boring locations were cleared of underground utilities. A health and safety plan was prepared to govern and control the field work by AEC staff and subcontractors.

560
CC 02-01-2022
560 of 756
4 Achievement Engineering
4-1- Field Investigation and Exploratory Boreholes
Three (3) exploratory borings, designated B-1 , B-2 and B-3, were completed by AEC on September 11, 2019. Isotech Environmental Corp., a C57 licensed drilling contractor (C57 #799951 B), drilled the borings under the direction of a geologist from AEC. The drilling was accomplished with the use of direct push drilling equipment providing continuous soil sampling capability. B1 and B2 were advanced into approximately forty (40 ) feet below ground surface (bgs. ), B3 was advanced into ten (10) feet. Bgs. DPT drives or pushes small- diameter rods (2 in.) tools into the subsurface by hydraulic or percussive methods. Closed piston, single-tube samplers provided high integrity samples. Dual tube samplers utilize concentric casings to advance the boring. The outer casing remains in place as the inner casing is used to trip out the sample as the boring is advanced incrementally. The outer casing prevents borehole collapse and generally reduces the potential for cross contamination between sampling intervals.

The geologist collected soil samples from each boring for potential laboratory analyses. Sampling consisted of sealing the samples and then labeling and placing the sample in an ice chest for cold storage. Following the protocol provided by the laboratory and manufacturer, Torrent Laboratory Inc. sampling was also performed as follows. A dedicated syringe was driven into freshly exposed soil to retrieve approximately five (5) grams of soil. The extracted soil was then transferred into laboratory-supplied, 40-milliliter volatile organic analysis vials (40 mL VOAs). The VOAs were promptly sealed with Teflon caps provided, labeled with identification information, and placed in the ice chest. AEC followed chain of custody protocol in the transfer of the soil samples to the laboratory, as presented in Exhibit III.

The soil vapor samples were taken on September 19, 2019, using 1L Summa Canisters at negative pressure. Three samples were taken from each of three boreholes. A purge canister was used to purge the tubes first to minimize contamination from above layers.

All down-hole drilling and sampling equipment was cleaned with environmental detergent and rinsed between uses to prevent cross-contamination.
4-2- Laboratory Analysis
The soil samples were submitted with chain of custody documentation to Torrent Laboratory Inc., of Milpitas, California. Torrent Laboratory Inc. is certified for chemical analyses by the Department of Health Services, Environmental Laboratory Accreditation Program (ELAP No. 1991).

The samples were subjected to the following laboratory analytical methods:

TPH gasoline, Test Method 8260TPH
TPH motor oil, Test Method USEPA Method 8015B
561
CC 02-01-2022
561 of 756
5 Achievement Engineering
TPH as Diesel, Test Method SW8015B
MTBE, Test Method SW8260B
BTEX, Test Method SW8260B
Pesticides (Organochlorine Pesticides by Me thod 8081B) and heavy metals (CAM 17, heavy metals) The latter tests were just performed for samples from B-3.

Soil vapor samples were analyzed for TPH and benzene by USEPA method TO-15.

Please note that it is our understanding that the new development is residential. Laboratory analytical testings have been performed on selected soil samples at 25.0 and 35.0 ft. for B1, 25.0 ft. for B2 and

5.0 ft. for B3 and the rest of the samples were put on hold in case further investigations required (per page 20 of Exhibit III, Analytical Test Results).

The laboratories reported that the samples were received in good condition and with appropriate chain of custody documentation. The analytical results were laboratory certified with no significant anomalies reported in the data. The laboratory analytical reports are provided in Exhibit III. 5- ENVIRONMENTAL SCREENING LEVELS
The Regional Water Quality Control Board, San Francisco Bay Region (RWQCB, February 201 6- REV 3.0) guidance, Screening for Environmental Concerns at Sites with Contaminated Soil and Groundwater, presents environmental screening levels (ESLs) for soil and groundwater that address human health exposure risk, ecological habitat protection, and groundwater protection. For carcinogens, the human health screening levels for carcinogens are based on a target cancer risk of one-in-a-million (10-6). A hazard quotient of

0.2 is the basis for non-carcinogenic risk.

The RWQCB (February 2016) considers two (2) groundwater use scenarios: one where groundwater IS a potential source of drinking water resource, and the other where groundwater IS NOT a potential drinking water resource.

The role of environmental screening levels is to screen sites and help identify areas, contaminants and conditions that may require further attention and risk assessment. In general, at sites where contaminants are below screening levels, no further action is warranted provided that the exposure assumptions match or approximate those used in developing the screening levels. Furthermore, contaminants above screening levels,
does not automatically trigger or require remedial action.

According to RWQCB (February 201 6), chemical concentrations in soil and groundwater above ESLs could pose negligible risk.
562
CC 02-01-2022
562 of 756
6 Achievement Engineering
Factors, such as background levels, have to be considered in evaluating sample data and the need for remedial action or risk management. Remedial action is generally not warranted for naturally- occurring metals in soil and groundwater.
6- INVESTIGATION RESULTS AND RECOMMENDATIONS
Three (3) exploratory borings were completed on September 11, 2019 at the subject site and the result of the investigation is as follows.
6-1- Soil and Water: Organics
Soil samples from 25.0 and 35.0 feet depths for B1 and from 25.0 feet depth for B2 were a
nalyzed for TPH (Gasoline), TPH (Diesel), TPH (Motor oil) MTBE and BTEX. Soil sample from 5.0 feet depth for B3 was analyzed for heavy metals and Organochlorine Pesticides. The soil analytical results for organics are compared with Tier 1 ESL values (that are conservative) as well as Toxicity Characteristic Leaching Procedure (TCLP) Regulatory Levels as attached in the Exhibit II, Environmental Screening Levels and STLC and TTLC Regulatory Limits Tables.

Analytical Results
B
1- 25 ft.: TPH diesel: 16.2 mg/Kg, TPH motor oil: 141 mg/Kg, Pentacosane: 72.6 %4, (S)4 Bromofluorobenzene: 104 %
(S) Dibromofluoromethane: 106 %
(S) Toluene-d8: 94.7 %
(S) 4-Bromofluorobenzene: 84.6 %
B1-35 ft.: All compounds were non-detectable for this sample.

Pentacosane: 67.1 %4,
(S)4 Bromofluorobenzene: 107 %
(S) Dibromofluoromethane: 106 %
(S) Toluene-d8: 95.4 %
(S) 4-Bromofluorobenzene: 84.7 %
B2-
25 ft.: All compounds were non-detectable for this sample.

Pentacosane (S): 63.8 %
(S)4 Bromofluorobenzene: 102 %
(S) Dibromofluoromethane: 109 %
(S) Toluene-d8: 94.4 %
(S) 4-Bromofluorobenzene: 84.9 %
563
CC 02-01-2022
563 of 756

7 Achievement Engineering

B3- 5 ft.:

TPH as Diesel: 2.04 mg/Kg, Pentacosane (S): 70.3 %,
(S) 4-Bromofluorobenzene: 99.2 %
(S) Dibromofluoromethane: 107 %
(S) Toluene-d8: 98.1 %
(S) 4-Bromofluorobenzene: 88.4 %
TCMX (S): 58.5 %
DCBP (S): 64.5 %

Groundwater was not encountered or tested at any borings.

6 -2- Soil and Water: Heavy Metals
B3- 5 ft.:

Arsenic: 2.50 mg/Kg
Barium: 150 mg/Kg
Chromium: 56.6 mg/Kg
Cobalt: 14.7 mg/Kg
Copper: 26.0 mg/Kg
Lead: 4.92 mg/Kg
Nickel: 41.3 mg/Kg
Vanadium: 72.1 mg/Kg
Zinc: 52.8 mg/Kg

6 -3- Soil Vapor

Soil vapor samples collected from 5. f t. bgs and were analyzed for TPH and benzene by USEPA method TO-15.

564
CC 02-01-2022
564 of 756

8 Achievement Engineering

SP1-B1

Environmental Screening Results

The soil analytical results for organics meet the RWQCB (February 2016) ESLs for a residential land use (the most conservative scenario) for soil and heavy metal concentrations does not exceed TTLC values.

However,
Arsenic in the soil sample is higher than 6.7 x 10 -2 mg/Kg of Tier 1 screening level.

For the case of Chromium since the concentration was 50 mg/Kg, per code recommendation a WET extraction test has been conducted. No Chromium was detected (STLC) as indicated in page
(17 of 33) of Exhibit III.

Based on these national studies and the regional data presented (Reference 2), it is apparent that arsenic concentrations across much of the United States are elevated with respect to residential RBSLs. Several states have recognized the importance of background with regards to remediation involving arsenic in soil:

California Environmental Protection Agency (CalEPA) Department of Toxic Substances Control (DTSC) has set an arsenic background concentration of 6 mg/kg to be used at Los Angeles Unified District school sites (CalEPA, 2005).

565
CC 02-01-2022
565 of 756

9 Achievement Engineering

6-4- Recommendations

There are no drinking water supply wells on the subject property and vicinity, and the subject property is in the service area of the municipal potable water supply system.

Although the recent investigation results indicate no
-risk or insignificant levels of TPH
(Gasoline), TPH (Diesel), TPH (Motor Oils), MTBE, BETEX, Organochlorine Pesticides and heavy metals in the soil, above the regulatory values, AEC recommends the following in the event the subject property is to be redeveloped:

•
A routine health and safety plan to ensure the safety and protection of the public and construction workers during construction.

• Installation of a vapor barrier beneath the concrete foundation slab of the proposed building at the site to mitigate potential odor risks associated with concentration of vapors (such as propanol).

The soil of the site may be hauled to any landfill.

7- LIMITATIONS

This Report was prepared pursuant to an Agreement dated 8 August 2019 between Alan Enterprise
LLC. and AEC. All uses of this Report are subject to, and deemed acceptance of, the conditions and restrictions contained in the Agreement. The observations and conclusions described in this Report are based solely on the Scope of Services provided pursuant to the Agreement. AEC has not performed any additional observations, investigations, studies or other testing not specified in the Agreement and the Report.

AEC shall not be liable for the existence of any condition the discovery of which would have required the performance of services not authorized under the Agreement.

This Report is prepared for the exclusive use of Alan Enterprise LLC. and its sub-contractors in connection with the design and construction of the development. There are no intended beneficiaries other than Alan Enterprise LLC. and its sub-contractors. AEC shall owe no duty, whatsoever, to any other person or entity on account of the Agreement or the Report. Use of this Report by any person or entity other than Alan Enterprise LLC. and its sub-contractors for any purpose whatsoever is
expressly forbidden unless such other person or entity obtains written authorization from Alan Enterprise LLC. and
AEC. Use of this Report by such other person or entity without the written authorization of Alan Enterprise LLC. and AEC shall be at such other person's or entities sole risk, and shall be without legal exposure or liability to AEC.

Use of this Report by any person or entity, including by Alan Enterprise LLC. and its sub- contractors, for a purpose other than for the design and construction of the proposed development is expressly prohibited unless such person or entity obtains written authorization from AEC indicating 566
CC 02-01-2022
566 of 756

10 Achievement Engineering

that the Report is adequate for such other use. Use of this Report by any person or entity for such other purpose without written authorization by AEC shall be at such person's or entities sole risk and shall be without legal exposure or liability to AEC.

This report reflects site conditions observed and described by records available to AEC as of the date
of report preparation. The passage of time may result in significant changes in site conditions, technology, or economic conditions which could alter the findings and/or recommendations of the report. Accordingly, Alan Enterprise LLC. and any other party to whom the report is provided recognize and agree that AEC shall bear no liability for deviations from observed conditions or available records after the time of report preparation.

8- REFERENCES

1 - Phase I Environmental Site Assessment Report for 22690 Stevens Creek Boulevard, Cupertino, California 95014 (Three parcels with APNs 342-14 -04, 342-14-05, and 342-14 - 66), AEC Project No. 3940, July 29, 2019.
2- Background Versus Risk-Based Screening Levels -An Examination Of Arsenic Background Soil Concentrations In Seven States, Kelly A.S. Vosnakis, Elizabeth Perry, Karen Madsen, Lisa J.N. Bradley, AECOM, Proceedings of the Annual International Conference on Soils, Sediments, Water and Energy, Volume 14, Article 10, January 2010.

567
CC 02-01-2022
567 of 756

Exhibit I

568
CC 02-01-2022
568 of 756
Project Number: Project Title:
0 1
2 3
4 MM/DD/YY
09/26/19
_ _ /_ _ /_ _
_ _ /_ _ /_ _
_ _ /_ _ /_ _
_ _ /_ _ /_ _

REVISIONS

REMARKS
...
...
...
...

M
3974
Ali Mozafari - Phase II - Exhibit III
Vicinity Map
01 569
CC 02-01-2022
569 of 756
Project Number: Project Title:
0 1
2 3
4 MM/DD/YY
09/26/19
_ _ /_ _ /_ _
_ _ /_ _ /_ _
_ _ /_ _ /_ _
_ _ /_ _ /_ _

REVISIONS

REMARKS
...
...
...
...

M
3974
Ali Mozafari - Phase II - Exhibit III
Boring Location
02 570
CC 02-01-2022
570 of 756
Project Number: Project Title:
0 1
2 3
4 MM/DD/YY
09/26/19
_ _ /_ _ /_ _
_ _ /_ _ /_ _
_ _ /_ _ /_ _
_ _ /_ _ /_ _

REVISIONS

REMARKS
...
...
...
...

M
3974
Ali Mozafari - Phase II - Exhibit III
Site Location on Cupertino quadrangle 7.5' Series
Topographic Map by USGS
03 571
CC 02-01-2022
571 of 756
Project Number: Project Title:
0 1
2 3
4 MM/DD/YY
09/26/19
_ _ /_ _ /_ _
_ _ /_ _ /_ _
_ _ /_ _ /_ _
_ _ /_ _ /_ _

REVISIONS

REMARKS
...
...
...
...

M
3974
Ali Mozafari - Phase II - Exhibit III
Site Location on Cupertino and San Jose West quadrangles

7.5' Series Geologic Map by T. W. Dibblee and J.A. Minch 2007 04 572
CC 02-01-2022
572 of 756

Exhibit II

573
CC 02-01-2022
573 of 756

Boring Sample
Depth (ft)
TPH
gasoline
(mg/Kg)
TPH
Diesel
(mg/Kg)
TPH
motor oil
(mg/Kg)
MTBE
(mg/Kg)
Benzene
(mg/Kg)
OCPs
(mg/Kg)
Aresenic
(mg/Kg)
Barium
(mg/Kg)
Chromium
(mg/Kg)
Cobalt
(mg/Kg)
Copper
(mg/Kg)
Lead
(mg/Kg)
Nickel
(mg/Kg)
B-1 35.0 ND 16.2 141 ND ND N/A N/A N/A N/A N/A N/A N/A N/A B-1 25.0 ND ND ND ND ND N/A N/A N/A N/A N/A N/A N/A N/A B-2 25.0 ND ND ND ND ND N/A N/A N/A N/A N/A N/A N/A N/A B-3 10.0 ND 2.04 ND ND ND ND 2.5 150 56.6 14.7 26 4.92 41.3 Tier 1 ESL (Soil) mg/Kg
100 230 5100 2.3 *10^-2 4.4 *10^-2 * 6.7 *10^-2 3000 0.3 230 3100 80 86 TTLC (mg/Kg) 500.0 10000.0 500.0 8000.0 2500.0 1000.0 2000.0 Boring Sample
Depth (ft)
Carbon
Disulfide
ug/m3
Hexane
ug/m3
tert-
Butanol
ug/m3
Chloroform
ug/m3
Toluene
ug/m3
Tetrachloro
ethylene
ug/m3
Ethyl
Benzene
ug/m3
m,p-
Xylene
ug/m3
4-Ethyl
Toluene
ug/m3
1,2,4-
Trimethyl
benzene
ug/m3
Naphthalene
ug/m3
2-
Propanol
(Isopropyl
Alcohol)
ug/m3
Aceton
ug/m3
B-1 5.0 36 2.6 1.9 3.1 5.2 26 2.6 7.5 9.1 10 2.6 320
B-2 5.0 ND ND ND ND 24
B-3 5.0 ND 1.9 ND ND 26 13
* * * 61 1.6 *10^5 240 560 5.2*10^4 * * 41 * 1.5*10^7Tier 1 ESL (Vapor) ug/m3 Concentration in soil samples
Concentrations in the vapor samples
574
CC 02-01-2022
574 of 756

Exhibit III

575
CC 02-01-2022
575 of 756
Arsh Firouzjaei
Achievement Engineering Corp
2455 Autumnvale Dr.

San Jose, California 95131
Tel: 408 217 9174
Fax: 408 217 9632
Email: [email protected]
RE: Alan Enterprise
Torrent Laboratory, Inc. received 9 sample(s) on September 11 , 2019 for the analyses presented in the following Report.

Dear Arash Firouzjaei:

Work Order No.: 1909078 Rev: 1
As requested on the Chain of Custody, five samples were placed on hold.

All data for associated QC met EPA or laboratory specification(s) except where noted in the case narrative.

Torrent Laboratory, Inc. is certified by the State of California, ELAP #1991 . If you have any questions regarding these test results, please feel free to contact the Project Management Team at (408)263-5258; ext 204.

Date
September 18, 2019
Kathie Evans
Project Manager

Page 1 of 33 ends

Cupertino City CouncilFebruary 1, 2022

Cupertino City Council
February 1, 2022