Agenda packet — Newark City Council, September 14, 2023 (part 11 of 13)

2335
Date: 9/2/2022
Client: Engeo (San Ramon)
Project: 38600 Cedar Blvd
Work Order: 2208230

CASE NARRATIVE
Unless otherwise indicated in the following narrative, no issues encountered with the receiving, preparation, analysis or reporting of the results associated with this work order.

Unless otherwise indicated in the following narrative, no results have been method and/or field blank corrected.

Reported results relate only to the items/samples tested by the laboratory.

This report shall not be reproduced, except in full, without the written approval of Torrent Laboratory, Inc.

Total Page Count: 39
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2336
Report prepared for: Monica Kunzel
Engeo (San Ramon)
Date Received: 08/26/22
Date Reported: 09/02/22
Sample Result Summary
SG-20 2208230-001
Parameters: Results
ug/m3
Analysis
Method

DF MDL PQL
Oxygen D1946 6.8 0.072 0.34 4.7%
1,1,1-Trichloroethane ETO15 10 7.9 27 63
Trichloroethylene ETO15 10 8.1 27 460
Tetrachloroethylene ETO15 10 15 34 2700
SG-21 2208230-002
Parameters: Results
ug/m3
Analysis
Method

DF MDL PQL
Oxygen D1946 6.7 0.071 0.34 1.0%
1,1-Difluoroethane ETO15 30 10 410 74000
Chloroethane ETO15 30 24 40 41
Hexane ETO15 30 14 53 3900
cis-1,2-Dichloroethene ETO15 30 25 59 860
Chloroform ETO15 30 29 73 600
SG-15 2208230-003
Parameters: Results
ug/m3
Analysis
Method

DF MDL PQL
Oxygen D1946 19 0.20 0.95 11%
Carbon Disulfide ETO15 1 0.37 1.6 15
Acetone ETO15 1 0.40 12 50
Hexane ETO15 1 0.46 1.8 2.2
Chloroform ETO15 1 0.97 2.4 9.3
1,1,1-Trichloroethane ETO15 1 0.79 2.7 9.4
2-Butanone (MEK) ETO15 1 0.39 1.5 3.1
Benzene ETO15 1 0.44 1.6 1.8
Toluene ETO15 1 0.75 1.9 12
m,p-Xylene ETO15 1 0.98 2.2 7.1
o-Xylene ETO15 1 0.30 2.2 3.9
SG-14 2208230-004
Parameters: Results
ug/m3
Analysis
Method

DF MDL PQL
Oxygen D1946 3.9 0.041 0.20 14%
Carbon Disulfide ETO15 1 0.37 1.6 6.4
Acetone ETO15 1 0.40 12 42
Chloroform ETO15 1 0.97 2.4 4.6
1,1,1-Trichloroethane ETO15 1 0.79 2.7 29
2-Butanone (MEK) ETO15 1 0.39 1.5 13
Toluene ETO15 1 0.75 1.9 6.1
4-Methyl-2-Pentanone (MIBK) ETO15 1 0.75 2.1 3.2
Tetrachloroethylene ETO15 1 1.5 3.4 15
Total Page Count: 39
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2337
Report prepared for: Monica Kunzel
Engeo (San Ramon)
Date Received: 08/26/22
Date Reported: 09/02/22
Sample Result Summary
SG-17 2208230-005
Parameters: Results
ug/m3
Analysis
Method

DF MDL PQL
Oxygen D1946 5.1 0.054 0.26 0.28%
Hexane ETO15 30 14 53 330
Chloroform ETO15 30 29 73 720
Benzene ETO15 30 13 48 890
Toluene ETO15 30 23 57 58
Acetone ETO15 60 24 710 4200
SG-16 2208230-006
Parameters: Results
ug/m3
Analysis
Method

DF MDL PQL
Oxygen D1946 5.1 0.054 0.26 0.48%
trans-1,2-Dichloroethene ETO15 30 14 59 150
1,1-Dichloroethane ETO15 30 16 61 120
cis-1,2-Dichloroethene ETO15 30 25 59 350
Chloroform ETO15 30 29 73 1000
Benzene ETO15 30 13 48 1800
m,p-Xylene ETO15 30 29 65 100
o-Xylene ETO15 30 9.1 65 79
1,2,4-Trichlorobenzene ETO15 30 65 110 130
Acetone ETO15 120 47 1400 3700
Hexane ETO15 120 56 210 11000
SG-19 2208230-007
Parameters: Results
ug/m3
Analysis
Method

DF MDL PQL
Oxygen D1946 5.9 0.062 0.30 0.14%
trans-1,2-Dichloroethene ETO15 30 14 59 580
Hexane ETO15 30 14 53 630
Chloroform ETO15 30 29 73 250
2-Butanone (MEK) ETO15 30 12 44 1700
Trichloroethylene ETO15 30 24 81 2900
Tetrachloroethylene ETO15 30 44 100 5200
cis-1,2-Dichloroethene ETO15 60 50 120 4700
SG-18 2208230-008
Parameters: Results
ug/m3
Analysis
Method

DF MDL PQL
Oxygen D1946 4.6 0.049 0.23 0.85%
1,1,1-Trichloroethane ETO15 30 24 82 270
Tetrachloroethylene ETO15 60 87 200 15000
Total Page Count: 39
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2338
Report prepared for: Monica Kunzel
Engeo (San Ramon)
Date Received: 08/26/22
Date Reported: 09/02/22
Sample Result Summary
SG-10 2208230-009
Parameters: Results
ug/m3
Analysis
Method

DF MDL PQL
Oxygen D1946 4.4 0.046 0.22 15%
Carbon Disulfide ETO15 2 0.75 3.1 23
Acetone ETO15 2 0.79 24 120
tert-Butanol ETO15 2 1.2 3.0 16
Carbon Tetrachloride ETO15 2 2.2 6.3 7.6
1,1,1-Trichloroethane ETO15 2 1.6 5.5 22
2-Butanone (MEK) ETO15 2 0.78 3.0 14
Benzene ETO15 2 0.87 3.2 5.0
Trichloroethylene ETO15 2 1.6 5.4 140
Toluene ETO15 2 1.5 3.8 12
Tetrachloroethylene ETO15 2 2.9 6.8 410
1,1,2-Trichloroethane ETO15 2 1.2 5.5 6.1
Total Page Count: 39
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2339

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 6116
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/23/22 / 13:33
15799.004.000
38600 Cedar Blvd
SG-20
Sample Matrix: Air
Lab Sample ID: 2208230-001A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 6.80 0.072 0.34 4.7 09/02/22 10:24 BA 468853 Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 10.00 16 25 ND ND 09/02/22 6:18 BA 468818 1,1-Difluoroethane ETO15 10.00 3.5 140 ND ND 09/02/22 6:18 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 10.00 14 35 ND ND 09/02/22 6:18 BA 468818 Chloromethane ETO15 10.00 20 41 ND ND 09/02/22 6:18 BA 468818 Vinyl Chloride ETO15 10.00 2.3 13 ND ND 09/02/22 6:18 BA 468818 1,3-Butadiene ETO15 10.00 3.4 11 ND ND 09/02/22 6:18 BA 468818 Bromomethane ETO15 10.00 6.6 19 ND ND 09/02/22 6:18 BA 468818 Chloroethane ETO15 10.00 8.1 13 ND ND 09/02/22 6:18 BA 468818 Trichlorofluoromethane ETO15 10.00 5.6 28 ND ND 09/02/22 6:18 BA 468818 1,1-Dichloroethene ETO15 10.00 8.3 20 ND ND 09/02/22 6:18 BA 468818 Freon 113 ETO15 10.00 10 38 ND ND 09/02/22 6:18 BA 468818 Carbon Disulfide ETO15 10.00 3.7 16 ND ND 09/02/22 6:18 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 10.00 13 120 ND ND 09/02/22 6:18 BA 468818 Methylene Chloride ETO15 10.00 7.0 100 ND ND 09/02/22 6:18 BA 468818 Acetone ETO15 10.00 4.0 120 ND ND 09/02/22 6:18 BA 468818 trans-1,2-Dichloroethene ETO15 10.00 4.8 20 ND ND 09/02/22 6:18 BA 468818 Hexane ETO15 10.00 4.6 18 ND ND 09/02/22 6:18 BA 468818 MTBE ETO15 10.00 4.4 18 ND ND 09/02/22 6:18 BA 468818
tert-Butanol ETO15 10.00 6.2 15 ND ND 09/02/22 6:18 BA 468818 Diisopropyl ether (DIPE) ETO15 10.00 7.4 21 ND ND 09/02/22 6:18 BA 468818 1,1-Dichloroethane ETO15 10.00 5.4 20 ND ND 09/02/22 6:18 BA 468818 ETBE ETO15 10.00 3.3 21 ND ND 09/02/22 6:18 BA 468818
cis-1,2-Dichloroethene ETO15 10.00 8.3 20 ND ND 09/02/22 6:18 BA 468818 Chloroform ETO15 10.00 9.7 24 ND ND 09/02/22 6:18 BA 468818 Vinyl Acetate ETO15 10.00 7.6 18 ND ND 09/02/22 6:18 BA 468818 Total Page Count: 39
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2340

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 6116
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/23/22 / 13:33
15799.004.000
38600 Cedar Blvd
SG-20
Sample Matrix: Air
Lab Sample ID: 2208230-001A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Carbon Tetrachloride ETO15 10.00 11 31 ND ND 09/02/22 6:18 BA 468818 1,1,1-Trichloroethane ETO15 10.00 7.9 27 63 11.54 09/02/22 6:18 BA 468818 2-Butanone (MEK) ETO15 10.00 3.9 15 ND ND 09/02/22 6:18 BA 468818 Ethyl Acetate ETO15 10.00 4.8 18 ND ND 09/02/22 6:18 BA 468818 Tetrahydrofuran ETO15 10.00 4.5 15 ND ND 09/02/22 6:18 BA 468818 Benzene ETO15 10.00 4.4 16 ND ND 09/02/22 6:18 BA 468818 TAME ETO15 10.00 6.7 21 ND ND 09/02/22 6:18 BA 468818
1,2-Dichloroethane (EDC) ETO15 10.00 4.2 20 ND ND 09/02/22 6:18 BA 468818 Trichloroethylene ETO15 10.00 8.1 27 460 85.66 09/02/22 6:18 BA 468818 1,2-Dichloropropane ETO15 10.00 7.6 23 ND ND 09/02/22 6:18 BA 468818 Bromodichloromethane ETO15 10.00 7.4 34 ND ND 09/02/22 6:18 BA 468818 1,4-Dioxane ETO15 10.00 18 36 ND ND 09/02/22 6:18 BA 468818 trans-1,3-Dichloropropene ETO15 10.00 11 23 ND ND 09/02/22 6:18 BA 468818 Toluene ETO15 10.00 7.5 19 ND ND 09/02/22 6:18 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 10.00 7.5 21 ND ND 09/02/22 6:18 BA 468818 cis-1,3-Dichloropropene ETO15 10.00 4.2 23 ND ND 09/02/22 6:18 BA 468818 Tetrachloroethylene ETO15 10.00 15 34 2700 398.23 09/02/22 6:18 BA 468818 1,1,2-Trichloroethane ETO15 10.00 5.8 27 ND ND 09/02/22 6:18 BA 468818 Dibromochloromethane ETO15 10.00 11 43 ND ND 09/02/22 6:18 BA 468818 1,2-Dibromoethane (EDB) ETO15 10.00 7.4 38 ND ND 09/02/22 6:18 BA 468818 2-Hexanone ETO15 10.00 6.5 21 ND ND 09/02/22 6:18 BA 468818 Ethyl Benzene ETO15 10.00 6.3 22 ND ND 09/02/22 6:18 BA 468818 Chlorobenzene ETO15 10.00 6.0 23 ND ND 09/02/22 6:18 BA 468818 1,1,1,2-Tetrachloroethane ETO15 10.00 8.4 34 ND ND 09/02/22 6:18 BA 468818 m,p-Xylene ETO15 10.00 9.8 22 ND ND 09/02/22 6:18 BA 468818 o-Xylene ETO15 10.00 3.0 22 ND ND 09/02/22 6:18 BA 468818 Styrene ETO15 10.00 4.6 21 ND ND 09/02/22 6:18 BA 468818 Bromoform ETO15 10.00 13 52 ND ND 09/02/22 6:18 BA 468818 1,1,2,2-Tetrachloroethane ETO15 10.00 8.2 34 ND ND 09/02/22 6:18 BA 468818 4-Ethyl Toluene ETO15 10.00 5.5 25 ND ND 09/02/22 6:18 BA 468818 1,3,5-Trimethylbenzene ETO15 10.00 3.0 25 ND ND 09/02/22 6:18 BA 468818 1,2,4-Trimethylbenzene ETO15 10.00 6.0 25 ND ND 09/02/22 6:18 BA 468818 1,4-Dichlorobenzene ETO15 10.00 7.5 30 ND ND 09/02/22 6:18 BA 468818 Total Page Count: 39
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2341

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 6116
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/23/22 / 13:33
15799.004.000
38600 Cedar Blvd
SG-20
Sample Matrix: Air
Lab Sample ID: 2208230-001A
SDG:

Page 8 of 39 ends

2342

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12221
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/23/22 / 13:49
15799.004.000
38600 Cedar Blvd
SG-21
Sample Matrix: Air
Lab Sample ID: 2208230-002A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 6.70 0.071 0.34 1.0 09/02/22 10:51 BA 468853 NOTE: Low Oxygen likely due to high microbial activity (high concentration of non-target gas).

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 30.00 47 74 ND ND 09/01/22 20:48 BA 468818 1,1-Difluoroethane ETO15 30.00 10 410 74000 27,407.41 E 09/01/22 20:48 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 30.00 42 100 ND ND 09/01/22 20:48 BA 468818 Chloromethane ETO15 30.00 61 120 ND ND 09/01/22 20:48 BA 468818 Vinyl Chloride ETO15 30.00 6.8 38 ND ND 09/01/22 20:48 BA 468818 1,3-Butadiene ETO15 30.00 10 33 ND ND 09/01/22 20:48 BA 468818 Bromomethane ETO15 30.00 20 58 ND ND 09/01/22 20:48 BA 468818 Chloroethane ETO15 30.00 24 40 41 15.53 09/01/22 20:48 BA 468818 Trichlorofluoromethane ETO15 30.00 17 84 ND ND 09/01/22 20:48 BA 468818 1,1-Dichloroethene ETO15 30.00 25 60 ND ND 09/01/22 20:48 BA 468818 Freon 113 ETO15 30.00 31 110 ND ND 09/01/22 20:48 BA 468818 Carbon Disulfide ETO15 30.00 11 47 ND ND 09/01/22 20:48 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 30.00 38 370 ND ND 09/01/22 20:48 BA 468818 Methylene Chloride ETO15 30.00 21 310 ND ND 09/01/22 20:48 BA 468818 Acetone ETO15 30.00 12 360 ND ND 09/01/22 20:48 BA 468818 trans-1,2-Dichloroethene ETO15 30.00 14 59 ND ND 09/01/22 20:48 BA 468818 Hexane ETO15 30.00 14 53 3900 1,107.95 09/01/22 20:48 BA 468818 MTBE ETO15 30.00 13 54 ND ND 09/01/22 20:48 BA 468818
tert-Butanol ETO15 30.00 19 45 ND ND 09/01/22 20:48 BA 468818 Diisopropyl ether (DIPE) ETO15 30.00 22 63 ND ND 09/01/22 20:48 BA 468818 1,1-Dichloroethane ETO15 30.00 16 61 ND ND 09/01/22 20:48 BA 468818 ETBE ETO15 30.00 9.8 63 ND ND 09/01/22 20:48 BA 468818
cis-1,2-Dichloroethene ETO15 30.00 25 59 860 217.17 09/01/22 20:48 BA 468818 Chloroform ETO15 30.00 29 73 600 122.95 09/01/22 20:48 BA 468818 Total Page Count: 39
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2343

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12221
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/23/22 / 13:49
15799.004.000
38600 Cedar Blvd
SG-21
Sample Matrix: Air
Lab Sample ID: 2208230-002A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Vinyl Acetate ETO15 30.00 23 53 ND ND 09/01/22 20:48 BA 468818 Carbon Tetrachloride ETO15 30.00 33 94 ND ND 09/01/22 20:48 BA 468818 1,1,1-Trichloroethane ETO15 30.00 24 82 ND ND 09/01/22 20:48 BA 468818 2-Butanone (MEK) ETO15 30.00 12 44 ND ND 09/01/22 20:48 BA 468818 Ethyl Acetate ETO15 30.00 14 54 ND ND 09/01/22 20:48 BA 468818 Tetrahydrofuran ETO15 30.00 13 44 ND ND 09/01/22 20:48 BA 468818 Benzene ETO15 30.00 13 48 ND ND 09/01/22 20:48 BA 468818 TAME ETO15 30.00 20 63 ND ND 09/01/22 20:48 BA 468818
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 09/01/22 20:48 BA 468818 Trichloroethylene ETO15 30.00 24 81 ND ND 09/01/22 20:48 BA 468818 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 09/01/22 20:48 BA 468818 Bromodichloromethane ETO15 30.00 22 100 ND ND 09/01/22 20:48 BA 468818 1,4-Dioxane ETO15 30.00 54 110 ND ND 09/01/22 20:48 BA 468818 trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 09/01/22 20:48 BA 468818 Toluene ETO15 30.00 23 57 ND ND 09/01/22 20:48 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 09/01/22 20:48 BA 468818 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 09/01/22 20:48 BA 468818 Tetrachloroethylene ETO15 30.00 44 100 ND ND 09/01/22 20:48 BA 468818 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 09/01/22 20:48 BA 468818 Dibromochloromethane ETO15 30.00 33 130 ND ND 09/01/22 20:48 BA 468818 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 09/01/22 20:48 BA 468818 2-Hexanone ETO15 30.00 20 62 ND ND 09/01/22 20:48 BA 468818 Ethyl Benzene ETO15 30.00 19 65 ND ND 09/01/22 20:48 BA 468818 Chlorobenzene ETO15 30.00 18 69 ND ND 09/01/22 20:48 BA 468818 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/01/22 20:48 BA 468818 m,p-Xylene ETO15 30.00 29 65 ND ND 09/01/22 20:48 BA 468818 o-Xylene ETO15 30.00 9.1 65 ND ND 09/01/22 20:48 BA 468818 Styrene ETO15 30.00 14 64 ND ND 09/01/22 20:48 BA 468818 Bromoform ETO15 30.00 39 160 ND ND 09/01/22 20:48 BA 468818 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/01/22 20:48 BA 468818 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 09/01/22 20:48 BA 468818 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 09/01/22 20:48 BA 468818 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 09/01/22 20:48 BA 468818 Total Page Count: 39
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2344

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12221
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/23/22 / 13:49
15799.004.000
38600 Cedar Blvd
SG-21
Sample Matrix: Air
Lab Sample ID: 2208230-002A
SDG:

Page 11 of 39 ends

2345

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 8344
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 10:21
15799.004.000
38600 Cedar Blvd
SG-15
Sample Matrix: Air
Lab Sample ID: 2208230-003A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 19.00 0.20 0.95 11 09/02/22 11:17 BA 468853 Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 1.00 1.6 2.5 ND ND 09/02/22 7:18 BA 468818 1,1-Difluoroethane ETO15 1.00 0.35 14 ND ND 09/02/22 7:18 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 1.00 1.4 3.5 ND ND 09/02/22 7:18 BA 468818 Chloromethane ETO15 1.00 2.0 4.1 ND ND 09/02/22 7:18 BA 468818 Vinyl Chloride ETO15 1.00 0.23 1.3 ND ND 09/02/22 7:18 BA 468818 1,3-Butadiene ETO15 1.00 0.34 1.1 ND ND 09/02/22 7:18 BA 468818 Bromomethane ETO15 1.00 0.66 1.9 ND ND 09/02/22 7:18 BA 468818 Chloroethane ETO15 1.00 0.81 1.3 ND ND 09/02/22 7:18 BA 468818 Trichlorofluoromethane ETO15 1.00 0.56 2.8 ND ND 09/02/22 7:18 BA 468818 1,1-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 09/02/22 7:18 BA 468818 Freon 113 ETO15 1.00 1.0 3.8 ND ND 09/02/22 7:18 BA 468818 Carbon Disulfide ETO15 1.00 0.37 1.6 15 4.82 09/02/22 7:18 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 1.00 1.3 12 ND ND 09/02/22 7:18 BA 468818 Methylene Chloride ETO15 1.00 0.70 10 ND ND 09/02/22 7:18 BA 468818 Acetone ETO15 1.00 0.40 12 50 21.01 09/02/22 7:18 BA 468818 trans-1,2-Dichloroethene ETO15 1.00 0.48 2.0 ND ND 09/02/22 7:18 BA 468818 Hexane ETO15 1.00 0.46 1.8 2.2 0.63 09/02/22 7:18 BA 468818 MTBE ETO15 1.00 0.44 1.8 ND ND 09/02/22 7:18 BA 468818
tert-Butanol ETO15 1.00 0.62 1.5 ND ND 09/02/22 7:18 BA 468818 Diisopropyl ether (DIPE) ETO15 1.00 0.74 2.1 ND ND 09/02/22 7:18 BA 468818 1,1-Dichloroethane ETO15 1.00 0.54 2.0 ND ND 09/02/22 7:18 BA 468818 ETBE ETO15 1.00 0.33 2.1 ND ND 09/02/22 7:18 BA 468818
cis-1,2-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 09/02/22 7:18 BA 468818 Chloroform ETO15 1.00 0.97 2.4 9.3 1.91 09/02/22 7:18 BA 468818 Vinyl Acetate ETO15 1.00 0.76 1.8 ND ND 09/02/22 7:18 BA 468818 Total Page Count: 39
Packet Page

Page 12 of 39 ends

2346

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 8344
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 10:21
15799.004.000
38600 Cedar Blvd
SG-15
Sample Matrix: Air
Lab Sample ID: 2208230-003A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Carbon Tetrachloride ETO15 1.00 1.1 3.1 ND ND 09/02/22 7:18 BA 468818 1,1,1-Trichloroethane ETO15 1.00 0.79 2.7 9.4 1.72 09/02/22 7:18 BA 468818 2-Butanone (MEK) ETO15 1.00 0.39 1.5 3.1 1.05 09/02/22 7:18 BA 468818 Ethyl Acetate ETO15 1.00 0.48 1.8 ND ND 09/02/22 7:18 BA 468818 Tetrahydrofuran ETO15 1.00 0.45 1.5 ND ND 09/02/22 7:18 BA 468818 Benzene ETO15 1.00 0.44 1.6 1.8 0.56 09/02/22 7:18 BA 468818 TAME ETO15 1.00 0.67 2.1 ND ND 09/02/22 7:18 BA 468818
1,2-Dichloroethane (EDC) ETO15 1.00 0.42 2.0 ND ND 09/02/22 7:18 BA 468818 Trichloroethylene ETO15 1.00 0.81 2.7 ND ND 09/02/22 7:18 BA 468818 1,2-Dichloropropane ETO15 1.00 0.76 2.3 ND ND 09/02/22 7:18 BA 468818 Bromodichloromethane ETO15 1.00 0.74 3.4 ND ND 09/02/22 7:18 BA 468818 1,4-Dioxane ETO15 1.00 1.8 3.6 ND ND 09/02/22 7:18 BA 468818 trans-1,3-Dichloropropene ETO15 1.00 1.1 2.3 ND ND 09/02/22 7:18 BA 468818 Toluene ETO15 1.00 0.75 1.9 12 3.18 09/02/22 7:18 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 1.00 0.75 2.1 ND ND 09/02/22 7:18 BA 468818 cis-1,3-Dichloropropene ETO15 1.00 0.42 2.3 ND ND 09/02/22 7:18 BA 468818 Tetrachloroethylene ETO15 1.00 1.5 3.4 ND ND 09/02/22 7:18 BA 468818 1,1,2-Trichloroethane ETO15 1.00 0.58 2.7 ND ND 09/02/22 7:18 BA 468818 Dibromochloromethane ETO15 1.00 1.1 4.3 ND ND 09/02/22 7:18 BA 468818 1,2-Dibromoethane (EDB) ETO15 1.00 0.74 3.8 ND ND 09/02/22 7:18 BA 468818 2-Hexanone ETO15 1.00 0.65 2.1 ND ND 09/02/22 7:18 BA 468818 Ethyl Benzene ETO15 1.00 0.63 2.2 ND ND 09/02/22 7:18 BA 468818 Chlorobenzene ETO15 1.00 0.60 2.3 ND ND 09/02/22 7:18 BA 468818 1,1,1,2-Tetrachloroethane ETO15 1.00 0.84 3.4 ND ND 09/02/22 7:18 BA 468818 m,p-Xylene ETO15 1.00 0.98 2.2 7.1 1.64 09/02/22 7:18 BA 468818 o-Xylene ETO15 1.00 0.30 2.2 3.9 0.90 09/02/22 7:18 BA 468818 Styrene ETO15 1.00 0.46 2.1 ND ND 09/02/22 7:18 BA 468818 Bromoform ETO15 1.00 1.3 5.2 ND ND 09/02/22 7:18 BA 468818 1,1,2,2-Tetrachloroethane ETO15 1.00 0.82 3.4 ND ND 09/02/22 7:18 BA 468818 4-Ethyl Toluene ETO15 1.00 0.55 2.5 ND ND 09/02/22 7:18 BA 468818 1,3,5-Trimethylbenzene ETO15 1.00 0.30 2.5 ND ND 09/02/22 7:18 BA 468818 1,2,4-Trimethylbenzene ETO15 1.00 0.60 2.5 ND ND 09/02/22 7:18 BA 468818 1,4-Dichlorobenzene ETO15 1.00 0.75 3.0 ND ND 09/02/22 7:18 BA 468818 Total Page Count: 39
Packet Page

Page 13 of 39 ends

2347

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 8344
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 10:21
15799.004.000
38600 Cedar Blvd
SG-15
Sample Matrix: Air
Lab Sample ID: 2208230-003A
SDG:

Page 14 of 39 ends

2348

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3966
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 10:29
15799.004.000
38600 Cedar Blvd
SG-14
Sample Matrix: Air
Lab Sample ID: 2208230-004A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 3.90 0.041 0.20 14 09/02/22 11:44 BA 468853 Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 1.00 1.6 2.5 ND ND 09/02/22 7:46 BA 468818 1,1-Difluoroethane ETO15 1.00 0.35 14 ND ND 09/02/22 7:46 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 1.00 1.4 3.5 ND ND 09/02/22 7:46 BA 468818 Chloromethane ETO15 1.00 2.0 4.1 ND ND 09/02/22 7:46 BA 468818 Vinyl Chloride ETO15 1.00 0.23 1.3 ND ND 09/02/22 7:46 BA 468818 1,3-Butadiene ETO15 1.00 0.34 1.1 ND ND 09/02/22 7:46 BA 468818 Bromomethane ETO15 1.00 0.66 1.9 ND ND 09/02/22 7:46 BA 468818 Chloroethane ETO15 1.00 0.81 1.3 ND ND 09/02/22 7:46 BA 468818 Trichlorofluoromethane ETO15 1.00 0.56 2.8 ND ND 09/02/22 7:46 BA 468818 1,1-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 09/02/22 7:46 BA 468818 Freon 113 ETO15 1.00 1.0 3.8 ND ND 09/02/22 7:46 BA 468818 Carbon Disulfide ETO15 1.00 0.37 1.6 6.4 2.06 09/02/22 7:46 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 1.00 1.3 12 ND ND 09/02/22 7:46 BA 468818 Methylene Chloride ETO15 1.00 0.70 10 ND ND 09/02/22 7:46 BA 468818 Acetone ETO15 1.00 0.40 12 42 17.65 09/02/22 7:46 BA 468818 trans-1,2-Dichloroethene ETO15 1.00 0.48 2.0 ND ND 09/02/22 7:46 BA 468818 Hexane ETO15 1.00 0.46 1.8 ND ND 09/02/22 7:46 BA 468818 MTBE ETO15 1.00 0.44 1.8 ND ND 09/02/22 7:46 BA 468818
tert-Butanol ETO15 1.00 0.62 1.5 ND ND 09/02/22 7:46 BA 468818 Diisopropyl ether (DIPE) ETO15 1.00 0.74 2.1 ND ND 09/02/22 7:46 BA 468818 1,1-Dichloroethane ETO15 1.00 0.54 2.0 ND ND 09/02/22 7:46 BA 468818 ETBE ETO15 1.00 0.33 2.1 ND ND 09/02/22 7:46 BA 468818
cis-1,2-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 09/02/22 7:46 BA 468818 Chloroform ETO15 1.00 0.97 2.4 4.6 0.94 09/02/22 7:46 BA 468818 Vinyl Acetate ETO15 1.00 0.76 1.8 ND ND 09/02/22 7:46 BA 468818 Total Page Count: 39
Packet Page

Page 15 of 39 ends

2349

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3966
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 10:29
15799.004.000
38600 Cedar Blvd
SG-14
Sample Matrix: Air
Lab Sample ID: 2208230-004A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Carbon Tetrachloride ETO15 1.00 1.1 3.1 ND ND 09/02/22 7:46 BA 468818 1,1,1-Trichloroethane ETO15 1.00 0.79 2.7 29 5.31 09/02/22 7:46 BA 468818 2-Butanone (MEK) ETO15 1.00 0.39 1.5 13 4.41 09/02/22 7:46 BA 468818 Ethyl Acetate ETO15 1.00 0.48 1.8 ND ND 09/02/22 7:46 BA 468818 Tetrahydrofuran ETO15 1.00 0.45 1.5 ND ND 09/02/22 7:46 BA 468818 Benzene ETO15 1.00 0.44 1.6 ND ND 09/02/22 7:46 BA 468818 TAME ETO15 1.00 0.67 2.1 ND ND 09/02/22 7:46 BA 468818
1,2-Dichloroethane (EDC) ETO15 1.00 0.42 2.0 ND ND 09/02/22 7:46 BA 468818 Trichloroethylene ETO15 1.00 0.81 2.7 ND ND 09/02/22 7:46 BA 468818 1,2-Dichloropropane ETO15 1.00 0.76 2.3 ND ND 09/02/22 7:46 BA 468818 Bromodichloromethane ETO15 1.00 0.74 3.4 ND ND 09/02/22 7:46 BA 468818 1,4-Dioxane ETO15 1.00 1.8 3.6 ND ND 09/02/22 7:46 BA 468818 trans-1,3-Dichloropropene ETO15 1.00 1.1 2.3 ND ND 09/02/22 7:46 BA 468818 Toluene ETO15 1.00 0.75 1.9 6.1 1.62 09/02/22 7:46 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 1.00 0.75 2.1 3.2 0.78 09/02/22 7:46 BA 468818 cis-1,3-Dichloropropene ETO15 1.00 0.42 2.3 ND ND 09/02/22 7:46 BA 468818 Tetrachloroethylene ETO15 1.00 1.5 3.4 15 2.21 09/02/22 7:46 BA 468818 1,1,2-Trichloroethane ETO15 1.00 0.58 2.7 ND ND 09/02/22 7:46 BA 468818 Dibromochloromethane ETO15 1.00 1.1 4.3 ND ND 09/02/22 7:46 BA 468818 1,2-Dibromoethane (EDB) ETO15 1.00 0.74 3.8 ND ND 09/02/22 7:46 BA 468818 2-Hexanone ETO15 1.00 0.65 2.1 ND ND 09/02/22 7:46 BA 468818 Ethyl Benzene ETO15 1.00 0.63 2.2 ND ND 09/02/22 7:46 BA 468818 Chlorobenzene ETO15 1.00 0.60 2.3 ND ND 09/02/22 7:46 BA 468818 1,1,1,2-Tetrachloroethane ETO15 1.00 0.84 3.4 ND ND 09/02/22 7:46 BA 468818 m,p-Xylene ETO15 1.00 0.98 2.2 ND ND 09/02/22 7:46 BA 468818 o-Xylene ETO15 1.00 0.30 2.2 ND ND 09/02/22 7:46 BA 468818 Styrene ETO15 1.00 0.46 2.1 ND ND 09/02/22 7:46 BA 468818 Bromoform ETO15 1.00 1.3 5.2 ND ND 09/02/22 7:46 BA 468818 1,1,2,2-Tetrachloroethane ETO15 1.00 0.82 3.4 ND ND 09/02/22 7:46 BA 468818 4-Ethyl Toluene ETO15 1.00 0.55 2.5 ND ND 09/02/22 7:46 BA 468818 1,3,5-Trimethylbenzene ETO15 1.00 0.30 2.5 ND ND 09/02/22 7:46 BA 468818 1,2,4-Trimethylbenzene ETO15 1.00 0.60 2.5 ND ND 09/02/22 7:46 BA 468818 1,4-Dichlorobenzene ETO15 1.00 0.75 3.0 ND ND 09/02/22 7:46 BA 468818 Total Page Count: 39
Packet Page

Page 16 of 39 ends

2350

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3966
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 10:29
15799.004.000
38600 Cedar Blvd
SG-14
Sample Matrix: Air
Lab Sample ID: 2208230-004A
SDG:

Page 17 of 39 ends

2351

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A7558
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 11:51
15799.004.000
38600 Cedar Blvd
SG-17
Sample Matrix: Air
Lab Sample ID: 2208230-005A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 5.10 0.054 0.26 0.28 09/02/22 12:11 BA 468853 NOTE: Low Oxygen likely due to high microbial activity (high concentration of non-target gases).

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 30.00 47 74 ND ND 09/01/22 22:02 BA 468818 1,1-Difluoroethane ETO15 30.00 10 410 ND ND 09/01/22 22:02 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 30.00 42 100 ND ND 09/01/22 22:02 BA 468818 Chloromethane ETO15 30.00 61 120 ND ND 09/01/22 22:02 BA 468818 Vinyl Chloride ETO15 30.00 6.8 38 ND ND 09/01/22 22:02 BA 468818 1,3-Butadiene ETO15 30.00 10 33 ND ND 09/01/22 22:02 BA 468818 Bromomethane ETO15 30.00 20 58 ND ND 09/01/22 22:02 BA 468818 Chloroethane ETO15 30.00 24 40 ND ND 09/01/22 22:02 BA 468818 Trichlorofluoromethane ETO15 30.00 17 84 ND ND 09/01/22 22:02 BA 468818 1,1-Dichloroethene ETO15 30.00 25 60 ND ND 09/01/22 22:02 BA 468818 Freon 113 ETO15 30.00 31 110 ND ND 09/01/22 22:02 BA 468818 Carbon Disulfide ETO15 30.00 11 47 ND ND 09/01/22 22:02 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 30.00 38 370 ND ND 09/01/22 22:02 BA 468818 Methylene Chloride ETO15 30.00 21 310 ND ND 09/01/22 22:02 BA 468818 trans-1,2-Dichloroethene ETO15 30.00 14 59 ND ND 09/01/22 22:02 BA 468818 Hexane ETO15 30.00 14 53 330 93.75 09/01/22 22:02 BA 468818 MTBE ETO15 30.00 13 54 ND ND 09/01/22 22:02 BA 468818
tert-Butanol ETO15 30.00 19 45 ND ND 09/01/22 22:02 BA 468818 Diisopropyl ether (DIPE) ETO15 30.00 22 63 ND ND 09/01/22 22:02 BA 468818 1,1-Dichloroethane ETO15 30.00 16 61 ND ND 09/01/22 22:02 BA 468818 ETBE ETO15 30.00 9.8 63 ND ND 09/01/22 22:02 BA 468818
cis-1,2-Dichloroethene ETO15 30.00 25 59 ND ND 09/01/22 22:02 BA 468818 Chloroform ETO15 30.00 29 73 720 147.54 09/01/22 22:02 BA 468818 Vinyl Acetate ETO15 30.00 23 53 ND ND 09/01/22 22:02 BA 468818 Total Page Count: 39
Packet Page

Page 18 of 39 ends

2352

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A7558
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 11:51
15799.004.000
38600 Cedar Blvd
SG-17
Sample Matrix: Air
Lab Sample ID: 2208230-005A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Carbon Tetrachloride ETO15 30.00 33 94 ND ND 09/01/22 22:02 BA 468818 1,1,1-Trichloroethane ETO15 30.00 24 82 ND ND 09/01/22 22:02 BA 468818 2-Butanone (MEK) ETO15 30.00 12 44 ND ND 09/01/22 22:02 BA 468818 Ethyl Acetate ETO15 30.00 14 54 ND ND 09/01/22 22:02 BA 468818 Tetrahydrofuran ETO15 30.00 13 44 ND ND 09/01/22 22:02 BA 468818 Benzene ETO15 30.00 13 48 890 279.00 09/01/22 22:02 BA 468818 TAME ETO15 30.00 20 63 ND ND 09/01/22 22:02 BA 468818
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 09/01/22 22:02 BA 468818 Trichloroethylene ETO15 30.00 24 81 ND ND 09/01/22 22:02 BA 468818 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 09/01/22 22:02 BA 468818 Bromodichloromethane ETO15 30.00 22 100 ND ND 09/01/22 22:02 BA 468818 1,4-Dioxane ETO15 30.00 54 110 ND ND 09/01/22 22:02 BA 468818 trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 09/01/22 22:02 BA 468818 Toluene ETO15 30.00 23 57 58 15.38 09/01/22 22:02 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 09/01/22 22:02 BA 468818 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 09/01/22 22:02 BA 468818 Tetrachloroethylene ETO15 30.00 44 100 ND ND 09/01/22 22:02 BA 468818 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 09/01/22 22:02 BA 468818 Dibromochloromethane ETO15 30.00 33 130 ND ND 09/01/22 22:02 BA 468818 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 09/01/22 22:02 BA 468818 2-Hexanone ETO15 30.00 20 62 ND ND 09/01/22 22:02 BA 468818 Ethyl Benzene ETO15 30.00 19 65 ND ND 09/01/22 22:02 BA 468818 Chlorobenzene ETO15 30.00 18 69 ND ND 09/01/22 22:02 BA 468818 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/01/22 22:02 BA 468818 m,p-Xylene ETO15 30.00 29 65 ND ND 09/01/22 22:02 BA 468818 o-Xylene ETO15 30.00 9.1 65 ND ND 09/01/22 22:02 BA 468818 Styrene ETO15 30.00 14 64 ND ND 09/01/22 22:02 BA 468818 Bromoform ETO15 30.00 39 160 ND ND 09/01/22 22:02 BA 468818 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/01/22 22:02 BA 468818 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 09/01/22 22:02 BA 468818 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 09/01/22 22:02 BA 468818 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 09/01/22 22:02 BA 468818 1,4-Dichlorobenzene ETO15 30.00 22 90 ND ND 09/01/22 22:02 BA 468818 Total Page Count: 39
Packet Page

Page 19 of 39 ends

2353

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A7558
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 11:51
15799.004.000
38600 Cedar Blvd
SG-17
Sample Matrix: Air
Lab Sample ID: 2208230-005A
SDG:

Page 20 of 39 ends

2354

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3990
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 11:59
15799.004.000
38600 Cedar Blvd
SG-16
Sample Matrix: Air
Lab Sample ID: 2208230-006A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 5.10 0.054 0.26 0.48 09/02/22 12:38 BA 468853 NOTE: Low Oxygen likely due to high microbial activity (high concentration of non-target gases).

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 30.00 47 74 ND ND 09/01/22 22:27 BA 468818 1,1-Difluoroethane ETO15 30.00 10 410 ND ND 09/01/22 22:27 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 30.00 42 100 ND ND 09/01/22 22:27 BA 468818 Chloromethane ETO15 30.00 61 120 ND ND 09/01/22 22:27 BA 468818 Vinyl Chloride ETO15 30.00 6.8 38 ND ND 09/01/22 22:27 BA 468818 1,3-Butadiene ETO15 30.00 10 33 ND ND 09/01/22 22:27 BA 468818 Bromomethane ETO15 30.00 20 58 ND ND 09/01/22 22:27 BA 468818 Chloroethane ETO15 30.00 24 40 ND ND 09/01/22 22:27 BA 468818 Trichlorofluoromethane ETO15 30.00 17 84 ND ND 09/01/22 22:27 BA 468818 1,1-Dichloroethene ETO15 30.00 25 60 ND ND 09/01/22 22:27 BA 468818 Freon 113 ETO15 30.00 31 110 ND ND 09/01/22 22:27 BA 468818 Carbon Disulfide ETO15 30.00 11 47 ND ND 09/01/22 22:27 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 30.00 38 370 ND ND 09/01/22 22:27 BA 468818 Methylene Chloride ETO15 30.00 21 310 ND ND 09/01/22 22:27 BA 468818 trans-1,2-Dichloroethene ETO15 30.00 14 59 150 37.88 09/01/22 22:27 BA 468818 MTBE ETO15 30.00 13 54 ND ND 09/01/22 22:27 BA 468818
tert-Butanol ETO15 30.00 19 45 ND ND 09/01/22 22:27 BA 468818 Diisopropyl ether (DIPE) ETO15 30.00 22 63 ND ND 09/01/22 22:27 BA 468818 1,1-Dichloroethane ETO15 30.00 16 61 120 29.63 09/01/22 22:27 BA 468818 ETBE ETO15 30.00 9.8 63 ND ND 09/01/22 22:27 BA 468818
cis-1,2-Dichloroethene ETO15 30.00 25 59 350 88.38 09/01/22 22:27 BA 468818 Chloroform ETO15 30.00 29 73 1000 204.92 09/01/22 22:27 BA 468818 Vinyl Acetate ETO15 30.00 23 53 ND ND 09/01/22 22:27 BA 468818 Carbon Tetrachloride ETO15 30.00 33 94 ND ND 09/01/22 22:27 BA 468818 Total Page Count: 39
Packet Page

Page 21 of 39 ends

2355

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3990
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 11:59
15799.004.000
38600 Cedar Blvd
SG-16
Sample Matrix: Air
Lab Sample ID: 2208230-006A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
1,1,1-Trichloroethane ETO15 30.00 24 82 ND ND 09/01/22 22:27 BA 468818 2-Butanone (MEK) ETO15 30.00 12 44 ND ND 09/01/22 22:27 BA 468818 Ethyl Acetate ETO15 30.00 14 54 ND ND 09/01/22 22:27 BA 468818 Tetrahydrofuran ETO15 30.00 13 44 ND ND 09/01/22 22:27 BA 468818 Benzene ETO15 30.00 13 48 1800 564.26 09/01/22 22:27 BA 468818 TAME ETO15 30.00 20 63 ND ND 09/01/22 22:27 BA 468818
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 09/01/22 22:27 BA 468818 Trichloroethylene ETO15 30.00 24 81 ND ND 09/01/22 22:27 BA 468818 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 09/01/22 22:27 BA 468818 Bromodichloromethane ETO15 30.00 22 100 ND ND 09/01/22 22:27 BA 468818 1,4-Dioxane ETO15 30.00 54 110 ND ND 09/01/22 22:27 BA 468818 trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 09/01/22 22:27 BA 468818 Toluene ETO15 30.00 23 57 ND ND 09/01/22 22:27 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 09/01/22 22:27 BA 468818 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 09/01/22 22:27 BA 468818 Tetrachloroethylene ETO15 30.00 44 100 ND ND 09/01/22 22:27 BA 468818 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 09/01/22 22:27 BA 468818 Dibromochloromethane ETO15 30.00 33 130 ND ND 09/01/22 22:27 BA 468818 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 09/01/22 22:27 BA 468818 2-Hexanone ETO15 30.00 20 62 ND ND 09/01/22 22:27 BA 468818 Ethyl Benzene ETO15 30.00 19 65 ND ND 09/01/22 22:27 BA 468818 Chlorobenzene ETO15 30.00 18 69 ND ND 09/01/22 22:27 BA 468818 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/01/22 22:27 BA 468818 m,p-Xylene ETO15 30.00 29 65 100 23.04 09/01/22 22:27 BA 468818 o-Xylene ETO15 30.00 9.1 65 79 18.20 09/01/22 22:27 BA 468818 Styrene ETO15 30.00 14 64 ND ND 09/01/22 22:27 BA 468818 Bromoform ETO15 30.00 39 160 ND ND 09/01/22 22:27 BA 468818 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/01/22 22:27 BA 468818 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 09/01/22 22:27 BA 468818 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 09/01/22 22:27 BA 468818 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 09/01/22 22:27 BA 468818 1,4-Dichlorobenzene ETO15 30.00 22 90 ND ND 09/01/22 22:27 BA 468818 1,3-Dichlorobenzene ETO15 30.00 40 90 ND ND 09/01/22 22:27 BA 468818 Total Page Count: 39
Packet Page

Page 22 of 39 ends

2356

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3990
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 11:59
15799.004.000
38600 Cedar Blvd
SG-16
Sample Matrix: Air
Lab Sample ID: 2208230-006A
SDG:

Page 23 of 39 ends

2357

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 8264
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 12:42
15799.004.000
38600 Cedar Blvd
SG-19
Sample Matrix: Air
Lab Sample ID: 2208230-007A
SDG:

Oxygen D1946 5.90 0.062 0.30 0.14 J 09/02/22 14:21 BA 468853 NOTE: Low Oxygen likely due to high microbial activity (high concentration of non-target gases).

Page 24 of 39 ends

2358

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 8264
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 12:42
15799.004.000
38600 Cedar Blvd
SG-19
Sample Matrix: Air
Lab Sample ID: 2208230-007A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Vinyl Acetate ETO15 30.00 23 53 ND ND 09/02/22 8:39 BA 468818 Carbon Tetrachloride ETO15 30.00 33 94 ND ND 09/02/22 8:39 BA 468818 1,1,1-Trichloroethane ETO15 30.00 24 82 ND ND 09/02/22 8:39 BA 468818 2-Butanone (MEK) ETO15 30.00 12 44 1700 576.27 09/02/22 8:39 BA 468818 Ethyl Acetate ETO15 30.00 14 54 ND ND 09/02/22 8:39 BA 468818 Tetrahydrofuran ETO15 30.00 13 44 ND ND 09/02/22 8:39 BA 468818 Benzene ETO15 30.00 13 48 ND ND 09/02/22 8:39 BA 468818 TAME ETO15 30.00 20 63 ND ND 09/02/22 8:39 BA 468818
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 09/02/22 8:39 BA 468818 Trichloroethylene ETO15 30.00 24 81 2900 540.04 09/02/22 8:39 BA 468818 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 09/02/22 8:39 BA 468818 Bromodichloromethane ETO15 30.00 22 100 ND ND 09/02/22 8:39 BA 468818 1,4-Dioxane ETO15 30.00 54 110 ND ND 09/02/22 8:39 BA 468818 trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 09/02/22 8:39 BA 468818 Toluene ETO15 30.00 23 57 ND ND 09/02/22 8:39 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 09/02/22 8:39 BA 468818 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 09/02/22 8:39 BA 468818 Tetrachloroethylene ETO15 30.00 44 100 5200 766.96 09/02/22 8:39 BA 468818 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 09/02/22 8:39 BA 468818 Dibromochloromethane ETO15 30.00 33 130 ND ND 09/02/22 8:39 BA 468818 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 09/02/22 8:39 BA 468818 2-Hexanone ETO15 30.00 20 62 ND ND 09/02/22 8:39 BA 468818 Ethyl Benzene ETO15 30.00 19 65 ND ND 09/02/22 8:39 BA 468818 Chlorobenzene ETO15 30.00 18 69 ND ND 09/02/22 8:39 BA 468818 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/02/22 8:39 BA 468818 m,p-Xylene ETO15 30.00 29 65 ND ND 09/02/22 8:39 BA 468818 o-Xylene ETO15 30.00 9.1 65 ND ND 09/02/22 8:39 BA 468818 Styrene ETO15 30.00 14 64 ND ND 09/02/22 8:39 BA 468818 Bromoform ETO15 30.00 39 160 ND ND 09/02/22 8:39 BA 468818 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/02/22 8:39 BA 468818 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 09/02/22 8:39 BA 468818 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 09/02/22 8:39 BA 468818 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 09/02/22 8:39 BA 468818 Total Page Count: 39
Packet Page

Page 25 of 39 ends

2359

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 8264
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 12:42
15799.004.000
38600 Cedar Blvd
SG-19
Sample Matrix: Air
Lab Sample ID: 2208230-007A
SDG:

Page 26 of 39 ends

2360

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.8
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12194
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 12:52
15799.004.000
38600 Cedar Blvd
SG-18
Sample Matrix: Air
Lab Sample ID: 2208230-008A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 4.60 0.049 0.23 0.85 09/02/22 14:52 BA 468853 NOTE: Low Oxygen likely due to high microbial activity (high concentration of non-target gas).

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 30.00 47 74 ND ND 09/02/22 9:04 BA 468818 1,1-Difluoroethane ETO15 30.00 10 410 ND ND 09/02/22 9:04 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 30.00 42 100 ND ND 09/02/22 9:04 BA 468818 Chloromethane ETO15 30.00 61 120 ND ND 09/02/22 9:04 BA 468818 Vinyl Chloride ETO15 30.00 6.8 38 ND ND 09/02/22 9:04 BA 468818 1,3-Butadiene ETO15 30.00 10 33 ND ND 09/02/22 9:04 BA 468818 Bromomethane ETO15 30.00 20 58 ND ND 09/02/22 9:04 BA 468818 Chloroethane ETO15 30.00 24 40 ND ND 09/02/22 9:04 BA 468818 Trichlorofluoromethane ETO15 30.00 17 84 ND ND 09/02/22 9:04 BA 468818 1,1-Dichloroethene ETO15 30.00 25 60 ND ND 09/02/22 9:04 BA 468818 Freon 113 ETO15 30.00 31 110 ND ND 09/02/22 9:04 BA 468818 Carbon Disulfide ETO15 30.00 11 47 ND ND 09/02/22 9:04 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 30.00 38 370 ND ND 09/02/22 9:04 BA 468818 Methylene Chloride ETO15 30.00 21 310 ND ND 09/02/22 9:04 BA 468818 Acetone ETO15 30.00 12 360 ND ND 09/02/22 9:04 BA 468818 trans-1,2-Dichloroethene ETO15 30.00 14 59 ND ND 09/02/22 9:04 BA 468818 Hexane ETO15 30.00 14 53 ND ND 09/02/22 9:04 BA 468818
MTBE ETO15 30.00 13 54 ND ND 09/02/22 9:04 BA 468818
tert-Butanol ETO15 30.00 19 45 ND ND 09/02/22 9:04 BA 468818 Diisopropyl ether (DIPE) ETO15 30.00 22 63 ND ND 09/02/22 9:04 BA 468818 1,1-Dichloroethane ETO15 30.00 16 61 ND ND 09/02/22 9:04 BA 468818 ETBE ETO15 30.00 9.8 63 ND ND 09/02/22 9:04 BA 468818
cis-1,2-Dichloroethene ETO15 30.00 25 59 ND ND 09/02/22 9:04 BA 468818 Chloroform ETO15 30.00 29 73 ND ND 09/02/22 9:04 BA 468818 Total Page Count: 39
Packet Page

Page 27 of 39 ends

2361

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.8
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12194
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 12:52
15799.004.000
38600 Cedar Blvd
SG-18
Sample Matrix: Air
Lab Sample ID: 2208230-008A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Vinyl Acetate ETO15 30.00 23 53 ND ND 09/02/22 9:04 BA 468818 Carbon Tetrachloride ETO15 30.00 33 94 ND ND 09/02/22 9:04 BA 468818 1,1,1-Trichloroethane ETO15 30.00 24 82 270 49.45 09/02/22 9:04 BA 468818 2-Butanone (MEK) ETO15 30.00 12 44 ND ND 09/02/22 9:04 BA 468818 Ethyl Acetate ETO15 30.00 14 54 ND ND 09/02/22 9:04 BA 468818 Tetrahydrofuran ETO15 30.00 13 44 ND ND 09/02/22 9:04 BA 468818 Benzene ETO15 30.00 13 48 ND ND 09/02/22 9:04 BA 468818 TAME ETO15 30.00 20 63 ND ND 09/02/22 9:04 BA 468818
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 09/02/22 9:04 BA 468818 Trichloroethylene ETO15 30.00 24 81 ND ND 09/02/22 9:04 BA 468818 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 09/02/22 9:04 BA 468818 Bromodichloromethane ETO15 30.00 22 100 ND ND 09/02/22 9:04 BA 468818 1,4-Dioxane ETO15 30.00 54 110 ND ND 09/02/22 9:04 BA 468818 trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 09/02/22 9:04 BA 468818 Toluene ETO15 30.00 23 57 ND ND 09/02/22 9:04 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 09/02/22 9:04 BA 468818 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 09/02/22 9:04 BA 468818 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 09/02/22 9:04 BA 468818 Dibromochloromethane ETO15 30.00 33 130 ND ND 09/02/22 9:04 BA 468818 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 09/02/22 9:04 BA 468818 2-Hexanone ETO15 30.00 20 62 ND ND 09/02/22 9:04 BA 468818 Ethyl Benzene ETO15 30.00 19 65 ND ND 09/02/22 9:04 BA 468818 Chlorobenzene ETO15 30.00 18 69 ND ND 09/02/22 9:04 BA 468818 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/02/22 9:04 BA 468818 m,p-Xylene ETO15 30.00 29 65 ND ND 09/02/22 9:04 BA 468818 o-Xylene ETO15 30.00 9.1 65 ND ND 09/02/22 9:04 BA 468818 Styrene ETO15 30.00 14 64 ND ND 09/02/22 9:04 BA 468818 Bromoform ETO15 30.00 39 160 ND ND 09/02/22 9:04 BA 468818 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/02/22 9:04 BA 468818 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 09/02/22 9:04 BA 468818 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 09/02/22 9:04 BA 468818 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 09/02/22 9:04 BA 468818 1,4-Dichlorobenzene ETO15 30.00 22 90 ND ND 09/02/22 9:04 BA 468818 Total Page Count: 39
Packet Page

Page 28 of 39 ends

2362

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.8
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12194
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 12:52
15799.004.000
38600 Cedar Blvd
SG-18
Sample Matrix: Air
Lab Sample ID: 2208230-008A
SDG:

Page 29 of 39 ends

2363

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A7568
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 13:45
15799.004.000
38600 Cedar Blvd
SG-10
Sample Matrix: Air
Lab Sample ID: 2208230-009A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 4.40 0.046 0.22 15 09/02/22 15:28 BA 468853 Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 2.00 3.1 5.0 ND ND 09/02/22 10:47 BA 468818 1,1-Difluoroethane ETO15 2.00 0.69 27 ND ND 09/02/22 10:47 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 2.00 2.8 7.0 ND ND 09/02/22 10:47 BA 468818 Chloromethane ETO15 2.00 4.1 8.3 ND ND 09/02/22 10:47 BA 468818 Vinyl Chloride ETO15 2.00 0.45 2.6 ND ND 09/02/22 10:47 BA 468818 1,3-Butadiene ETO15 2.00 0.68 2.2 ND ND 09/02/22 10:47 BA 468818 Bromomethane ETO15 2.00 1.3 3.9 ND ND 09/02/22 10:47 BA 468818 Chloroethane ETO15 2.00 1.6 2.6 ND ND 09/02/22 10:47 BA 468818 Trichlorofluoromethane ETO15 2.00 1.1 5.6 ND ND 09/02/22 10:47 BA 468818 1,1-Dichloroethene ETO15 2.00 1.7 4.0 ND ND 09/02/22 10:47 BA 468818 Freon 113 ETO15 2.00 2.0 7.7 ND ND 09/02/22 10:47 BA 468818 Carbon Disulfide ETO15 2.00 0.75 3.1 23 7.40 09/02/22 10:47 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 2.00 2.6 25 ND ND 09/02/22 10:47 BA 468818 Methylene Chloride ETO15 2.00 1.4 21 ND ND 09/02/22 10:47 BA 468818 Acetone ETO15 2.00 0.79 24 120 50.42 09/02/22 10:47 BA 468818 trans-1,2-Dichloroethene ETO15 2.00 0.95 4.0 ND ND 09/02/22 10:47 BA 468818 Hexane ETO15 2.00 0.93 3.5 ND ND 09/02/22 10:47 BA 468818 MTBE ETO15 2.00 0.89 3.6 ND ND 09/02/22 10:47 BA 468818 tert-Butanol ETO15 2.00 1.2 3.0 16 5.28 09/02/22 10:47 BA 468818 Diisopropyl ether (DIPE) ETO15 2.00 1.5 4.2 ND ND 09/02/22 10:47 BA 468818 1,1-Dichloroethane ETO15 2.00 1.1 4.1 ND ND 09/02/22 10:47 BA 468818 ETBE ETO15 2.00 0.65 4.2 ND ND 09/02/22 10:47 BA 468818 cis-1,2-Dichloroethene ETO15 2.00 1.7 4.0 ND ND 09/02/22 10:47 BA 468818 Chloroform ETO15 2.00 1.9 4.9 ND ND 09/02/22 10:47 BA 468818 Vinyl Acetate ETO15 2.00 1.5 3.5 ND ND 09/02/22 10:47 BA 468818 Total Page Count: 39
Packet Page

Page 30 of 39 ends

2364

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A7568
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 13:45
15799.004.000
38600 Cedar Blvd
SG-10
Sample Matrix: Air
Lab Sample ID: 2208230-009A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Carbon Tetrachloride ETO15 2.00 2.2 6.3 7.6 1.21 09/02/22 10:47 BA 468818 1,1,1-Trichloroethane ETO15 2.00 1.6 5.5 22 4.03 09/02/22 10:47 BA 468818 2-Butanone (MEK) ETO15 2.00 0.78 3.0 14 4.75 09/02/22 10:47 BA 468818 Ethyl Acetate ETO15 2.00 0.95 3.6 ND ND 09/02/22 10:47 BA 468818 Tetrahydrofuran ETO15 2.00 0.90 3.0 ND ND 09/02/22 10:47 BA 468818 Benzene ETO15 2.00 0.87 3.2 5.0 1.57 09/02/22 10:47 BA 468818 TAME ETO15 2.00 1.3 4.2 ND ND 09/02/22 10:47 BA 468818
1,2-Dichloroethane (EDC) ETO15 2.00 0.84 4.1 ND ND 09/02/22 10:47 BA 468818 Trichloroethylene ETO15 2.00 1.6 5.4 140 26.07 09/02/22 10:47 BA 468818 1,2-Dichloropropane ETO15 2.00 1.5 4.6 ND ND 09/02/22 10:47 BA 468818 Bromodichloromethane ETO15 2.00 1.5 6.7 ND ND 09/02/22 10:47 BA 468818 1,4-Dioxane ETO15 2.00 3.6 7.2 ND ND 09/02/22 10:47 BA 468818 trans-1,3-Dichloropropene ETO15 2.00 2.1 4.5 ND ND 09/02/22 10:47 BA 468818 Toluene ETO15 2.00 1.5 3.8 12 3.18 09/02/22 10:47 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 2.00 1.5 4.1 ND ND 09/02/22 10:47 BA 468818 cis-1,3-Dichloropropene ETO15 2.00 0.84 4.5 ND ND 09/02/22 10:47 BA 468818 Tetrachloroethylene ETO15 2.00 2.9 6.8 410 60.47 09/02/22 10:47 BA 468818 1,1,2-Trichloroethane ETO15 2.00 1.2 5.5 6.1 1.12 09/02/22 10:47 BA 468818 Dibromochloromethane ETO15 2.00 2.2 8.5 ND ND 09/02/22 10:47 BA 468818 1,2-Dibromoethane (EDB) ETO15 2.00 1.5 7.7 ND ND 09/02/22 10:47 BA 468818 2-Hexanone ETO15 2.00 1.3 4.1 ND ND 09/02/22 10:47 BA 468818 Ethyl Benzene ETO15 2.00 1.3 4.3 ND ND 09/02/22 10:47 BA 468818 Chlorobenzene ETO15 2.00 1.2 4.6 ND ND 09/02/22 10:47 BA 468818 1,1,1,2-Tetrachloroethane ETO15 2.00 1.7 6.9 ND ND 09/02/22 10:47 BA 468818 m,p-Xylene ETO15 2.00 2.0 4.3 ND ND 09/02/22 10:47 BA 468818 o-Xylene ETO15 2.00 0.61 4.3 ND ND 09/02/22 10:47 BA 468818 Styrene ETO15 2.00 0.93 4.3 ND ND 09/02/22 10:47 BA 468818 Bromoform ETO15 2.00 2.6 10 ND ND 09/02/22 10:47 BA 468818 1,1,2,2-Tetrachloroethane ETO15 2.00 1.6 6.9 ND ND 09/02/22 10:47 BA 468818 4-Ethyl Toluene ETO15 2.00 1.1 4.9 ND ND 09/02/22 10:47 BA 468818 1,3,5-Trimethylbenzene ETO15 2.00 0.60 4.9 ND ND 09/02/22 10:47 BA 468818 1,2,4-Trimethylbenzene ETO15 2.00 1.2 4.9 ND ND 09/02/22 10:47 BA 468818 1,4-Dichlorobenzene ETO15 2.00 1.5 6.0 ND ND 09/02/22 10:47 BA 468818 Total Page Count: 39
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2365

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A7568
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 13:45
15799.004.000
38600 Cedar Blvd
SG-10
Sample Matrix: Air
Lab Sample ID: 2208230-009A
SDG:

Page 32 of 39 ends

2366
MB Summary Report
Work Order:

Matrix:

Units:

Prep Method:

Analytical ETO15
Method:

Prep Date:

Analyzed Date:
09/01/22 Prep Batch:

Analytical
Batch:
ppbv
TO15-P 1144571
Air 468818
2208230
9/1/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Dichlorodifluoromethane 0.32 0.50 ND
1,1-Difluoroethane 0.13 5.0 ND
1,2-Dichlorotetrafluoroethane 0.20 0.50 ND
Chloromethane 0.99 2.0 ND
Vinyl Chloride 0.088 0.50 ND
1,3-Butadiene 0.15 0.50 ND
Bromomethane 0.17 0.50 ND
Chloroethane 0.31 0.50 ND
Trichlorofluoromethane 0.099 0.50 ND
1,1-Dichloroethene 0.21 0.50 ND
Freon 113 0.13 0.50 ND
Carbon Disulfide 0.12 0.50 ND
2-Propanol (Isopropyl Alcohol) 0.52 5.0 ND
Methylene Chloride 0.20 3.0 ND
Acetone 0.17 5.0 ND
trans-1,2-Dichloroethene 0.12 0.50 ND
Hexane 0.13 0.50 ND
MTBE 0.12 0.50 ND
tert-Butanol 0.20 0.50 ND
Diisopropyl ether (DIPE) 0.18 0.50 ND
1,1-Dichloroethane 0.13 0.50 ND
ETBE 0.078 0.50 ND
cis-1,2-Dichloroethene 0.21 0.50 ND
Chloroform 0.20 0.50 ND
Vinyl Acetate 0.22 0.50 ND
Carbon Tetrachloride 0.18 0.50 ND
1,1,1-Trichloroethane 0.15 0.50 ND
2-Butanone (MEK) 0.13 0.50 ND
Ethyl Acetate 0.13 0.50 ND
Tetrahydrofuran 0.15 0.50 ND
Benzene 0.14 0.50 ND
TAME 0.16 0.50 ND
1,2-Dichloroethane (EDC) 0.10 0.50 ND
Trichloroethylene 0.15 0.50 ND
1,2-Dichloropropane 0.17 0.50 ND
Bromodichloromethane 0.11 0.50 ND
1,4-Dioxane 0.50 1.0 ND
trans-1,3-Dichloropropene 0.23 0.50 ND
Toluene 0.20 0.50 ND
4-Methyl-2-Pentanone (MIBK) 0.18 0.50 ND
cis-1,3-Dichloropropene 0.093 0.50 ND
Tetrachloroethylene 0.22 0.50 ND
Total Page Count: 39
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2367
MB Summary Report
Work Order:

Matrix:

Units:

Prep Method:

Analytical ETO15
Method:

Prep Date:

Analyzed Date:
09/01/22 Prep Batch:

Analytical
Batch:
ppbv
TO15-P 1144571
Air 468818
2208230
9/1/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
1,1,2-Trichloroethane 0.11 0.50 ND
Dibromochloromethane 0.13 0.50 ND
1,2-Dibromoethane (EDB) 0.096 0.50 ND
2-Hexanone 0.16 0.50 ND
Ethyl Benzene 0.15 0.50 ND
Chlorobenzene 0.13 0.50 ND
1,1,1,2-Tetrachloroethane 0.12 0.50 ND
m,p-Xylene 0.23 0.50 ND
o-Xylene 0.070 0.50 ND
Styrene 0.11 0.50 ND
Bromoform 0.13 0.50 ND
1,1,2,2-Tetrachloroethane 0.12 0.50 ND
4-Ethyl Toluene 0.11 0.50 ND
1,3,5-Trimethylbenzene 0.061 0.50 ND
1,2,4-Trimethylbenzene 0.12 0.50 ND
1,4-Dichlorobenzene 0.12 0.50 ND
1,3-Dichlorobenzene 0.22 0.50 ND
1,2-Dichlorobenzene 0.18 0.50 ND
Hexachlorobutadiene 0.17 0.50 ND
1,2,4-Trichlorobenzene 0.29 0.50 ND
Naphthalene 0.24 0.50 ND
Cyclohexane 0.50 0.50 ND
Benzyl Chloride 0.20 0.50 ND
Heptane 0.13 0.50 ND
(S) 4-Bromofluorobenzene 88
Work Order:

Matrix:

Units:

Prep Method:

Analytical D1946
Method:

Prep Date:

Analyzed Date:
09/02/22 Prep Batch:

Analytical
Batch:
ppmv
FG-P 1144606
Air 468853
2208230
9/2/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Oxygen 110 500 ND
Total Page Count: 39
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2368
LCS/LCSD Summary Report
Raw values are used in quality control assessment.

Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed Date:
09/01/22 Prep Batch:

Analytical
Batch:

TO15-P 1144571
ETO15 9/1/2022 468818
ppbv
2208230
Air
Parameters MDL PQL
Method
Blank
Conc.

Spike
Conc.

LCS %
Recovery
LCSD %
Recovery

LCS/LCSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
1,1-Dichloroethene 0.21 0.50 ND 8.00 108 111 3.08 65 - 135 30 Benzene 0.14 0.50 ND 8.00 93.3 95.7 2.65 65 - 135 30
Trichloroethylene 0.15 0.50 ND 8.00 101 100 0.991 65 - 135 30 Toluene 0.20 0.50 ND 8.00 88.3 91.5 3.62 65 - 135 30
Chlorobenzene 0.13 0.50 ND 8.00 87.7 91.5 4.18 65 - 135 30 (S) 4-Bromofluorobenzene 20.0 88.4 89.9 50 - 150
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed Date:
09/02/22 Prep Batch:

Analytical
Batch:

FG-P 1144606
D1946 9/2/2022 468853
ppmv
2208230
Air
Parameters MDL PQL
Method
Blank
Conc.

Spike
Conc.

LCS %
Recovery
LCSD %
Recovery

LCS/LCSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Oxygen 110 500 ND 2500 113 92.9 19.8 65 - 135 30
Total Page Count: 39
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2369
Laboratory Qualifiers and Definitions
Method Detection Limit (MDL) - the minimum concentration of a substance that can be measured and reported with a 99% confidence that the analyte concentration is greater than zero
Matrix Spike (MS/MSD) - Client sample spiked with identical concentrations of target analyte (s). The spiking occurs prior to the sample preparation and analysis. They are used to document the precision and bias of a method in a given sample matrix.

Matrix - the component or substrate that contains the analyte of interest (e.g., - groundwater, sediment, soil, waste water, etc) Laboratory Control Sample (LCS ad LCSD) - A known matrix spiked with compounds representative of the target analyte(s). This is used to document laboratory performance.

Duplicate - a field sample and/or laboratory QC sample prepared in duplicate following all of the same processes and procedures used on the original sample (sample duplicate, LCSD, MSD)
Blank (Method/Preparation Blank) -MB/PB - An analyte-free matrix to which all reagents are added in the same volumes/proportions as used in sample processing. The method blank is used to document contamination resulting from the analytical process.

Practical Quantitation Limit/Reporting Limit/Limit of Quantitation (PQL/RL/LOQ) - a laboratory determined value at 2 to 5 times above the MDL that can be reproduced in a manner that results in a 99% confidence level that the result is both accurate and precise. PQLs/RLs/LODs reflect all preparation factors and/or dilution factors that have been applied to the sample during the preparation and/or analytical processes.

Precision (%RPD) - The agreement among a set of replicate/duplicate measurements without regard to known value of the replicates Surrogate (S) or (Surr) - An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical process, but which is not normally found in environmental samples. Surrogates are used in most organic analysis to demonstrate matrix compatibility with the chosen method of analysis
Tentatively Identified Compound (TIC) - A compound not contained within the analytical calibration standards but present in the GCMS library of defined compounds. When the library is searched for an unknown compound, it can frequently give a tentative identification to the compound based on retention time and primary and secondary ion match. TICs are reported as estimates and are candidates for further investigation.

Units: the unit of measure used to express the reported result - mg/L and mg/Kg (equivalent to PPM - parts per million in liquid and solid), ug/L and ug/Kg (equivalent to PPB - parts per billion in liquid and solid), ug/m3, mg/m3, ppbv and ppmv (all units of measure for reporting concentrations in air), % ( equivalent to 10000 ppm or 1,000,000 ppb), ug/Wipe ( concentration found on the surface of a single Wipe usually taken over a 100cm2 surface) B - Indicates when the analyte is found in the associated method or preparation blank D - Surrogate is not recoverable due to the necessary dilution of the sample E - Indicates the reportable value is outside of the calibration range of the instrument but within the linear range of the instrument (unless otherwise noted) Values reported with an E qualifier should be considered as estimated.

H- Indicates that the recommended holding time for the analyte or compound has been exceeded J- Indicates a value between the method MDL and PQL and that the reported concentration should be considered as estimated rather the quantitative NA - Not Analyzed
N/A - Not Applicable
ND - Not Detected at a concentration greater than the PQL/RL or, if reported to the MDL, at greater than the MDL.

NR - Not recoverable - a matrix spike concentration is not recoverable due to a concentration within the original sample that is greater than four times the spike concentration added
R- The % RPD between a duplicate set of samples is outside of the absolute values established by laboratory control charts S- Spike recovery is outside of established method and/or laboratory control limits. Further explanation of the use of this qualifier should be included within a case narrative
X -Used to indicate that a value based on pattern identification is within the pattern range but not typical of the pattern found in standards.

Further explanation may or may not be provided within the sample footnote and/or the case narrative.

DEFINITIONS:

Accuracy/Bias (% Recovery) - The closeness of agreement between an observed value and an accepted reference value.

LABORATORY QUALIFIERS:

Total Page Count: 39
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2370
Sample Receipt Checklist
Client Name: Engeo (San Ramon)
Project Name: 38600 Cedar Blvd
Work Order No.: 2208230
Date and Time Received: 8/26/2022 2:48:00PM
Received By: Lorna Imbat
Physically Logged By: Lorna Imbat
Carrier Name: Client Drop Off
Checklist Completed By: Lorna Imbat
Comments:

Chain of Custody (COC) Information
Shipping Container/Cooler In Good Condition?
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Chain of custody present?
Chain of custody signed when relinquished and received? Chain of custody agrees with sample labels?
Samples in proper container/bottle?
Sufficient sample volume for indicated test?
All samples received within holding time?
Container/Temp Blank temperature in compliance?
Water-VOA vials have zero headspace?
Water-pH acceptable upon receipt?
Temperature:

Yes
Not Present
Not Present
Yes
Yes
Yes
Yes
Yes
Yes
No VOA vials submitted
N/A
Samples containers intact? Yes
°C
Sample Receipt Information
Sample Preservation and Hold Time (HT) Information
pH Checked by: n/a pH Adjusted by: n/a
Total Page Count: 39
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2371
Login Summary Report
Report Due Date:
8/26/2022
TL5123 Engeo (San Ramon) II
38600 Cedar Blvd
15799.004.000
9/2/2022
TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:
5+ day:5
2:48 pm
Work Order # : 2208230
Requested Subbed
Tests
Test
On Hold
Sample
On Hold
Scheduled
Disposal
Collection Matrix
Date/Time
Client
Sample ID
WO Sample ID
2208230-001A Air SG-20 08/23/22 13:33
VOC_A_TO15
VOC_A_FG D1946
Sample Note: TO15 & O2
2208230-002A SG-21 08/23/22 13:49 Air
VOC_A_TO15
VOC_A_FG D1946
2208230-003A SG-15 08/26/22 10:21 Air
VOC_A_TO15
VOC_A_FG D1946
2208230-004A SG-14 08/26/22 10:29 Air
VOC_A_TO15
VOC_A_FG D1946
2208230-005A SG-17 08/26/22 11:51 Air
VOC_A_TO15
VOC_A_FG D1946
2208230-006A SG-16 08/26/22 11:59 Air
VOC_A_TO15
VOC_A_FG D1946
2208230-007A SG-19 08/26/22 12:42 Air
VOC_A_TO15
VOC_A_FG D1946
2208230-008A SG-18 08/26/22 12:52 Air
VOC_A_FG D1946
VOC_A_TO15
2208230-009A SG-10 08/26/22 13:45 Air
VOC_A_TO15
VOC_A_FG D1946
Total Page Count: 39
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2372
Total Page Count: 39
Packet Page

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2373

SAMPLE RESULTS
Report prepared for:

Date Reported: 08/12/22
Date/Time Received: 08/05/22, 6:00 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 10.4
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3597
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/05/22 / 15:10
15799.004.000
Cedar Blvd
SG-5 @ 6'
Sample Matrix: Air
Lab Sample ID: 2208064-001A
SDG:

Prep Batch ID: 1144543
Prep Batch Date/Time: 8/25/22 4:30:00PM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 2.40 0.025 0.12 11 08/25/22 17:54 BA 468795 Prep Batch ID: 1143938
Prep Batch Date/Time: 8/8/22 1:30:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 30.00 47 74 ND ND 08/08/22 19:34 BA 468228 1,1-Difluoroethane ETO15 30.00 10 410 ND ND 08/08/22 19:34 BA 468228 1,2-Dichlorotetrafluoroethane ETO15 30.00 42 100 ND ND 08/08/22 19:34 BA 468228 Chloromethane ETO15 30.00 61 120 ND ND 08/08/22 19:34 BA 468228 Vinyl Chloride ETO15 30.00 6.8 38 1900 742.19 08/08/22 19:34 BA 468228 1,3-Butadiene ETO15 30.00 10 33 ND ND 08/08/22 19:34 BA 468228 Bromomethane ETO15 30.00 20 58 ND ND 08/08/22 19:34 BA 468228 Chloroethane ETO15 30.00 24 40 ND ND 08/08/22 19:34 BA 468228 Trichlorofluoromethane ETO15 30.00 17 84 ND ND 08/08/22 19:34 BA 468228 1,1-Dichloroethene ETO15 30.00 25 60 350 88.16 08/08/22 19:34 BA 468228 Freon 113 ETO15 30.00 31 110 ND ND 08/08/22 19:34 BA 468228 Carbon Disulfide ETO15 30.00 11 47 ND ND 08/08/22 19:34 BA 468228 2-Propanol (Isopropyl Alcohol) ETO15 30.00 38 370 ND ND 08/08/22 19:34 BA 468228 Methylene Chloride ETO15 30.00 21 310 ND ND 08/08/22 19:34 BA 468228 Acetone ETO15 30.00 12 360 ND ND 08/08/22 19:34 BA 468228 trans-1,2-Dichloroethene ETO15 30.00 14 59 74 18.69 08/08/22 19:34 BA 468228 Hexane ETO15 30.00 14 53 110 31.25 08/08/22 19:34 BA 468228 MTBE ETO15 30.00 13 54 ND ND 08/08/22 19:34 BA 468228
tert-Butanol ETO15 30.00 19 45 ND ND 08/08/22 19:34 BA 468228 Diisopropyl ether (DIPE) ETO15 30.00 22 63 ND ND 08/08/22 19:34 BA 468228 1,1-Dichloroethane ETO15 30.00 16 61 6900 1,703.70 08/08/22 19:34 BA 468228 ETBE ETO15 30.00 9.8 63 ND ND 08/08/22 19:34 BA 468228
Chloroform ETO15 30.00 29 73 ND ND 08/08/22 19:34 BA 468228 Vinyl Acetate ETO15 30.00 23 53 ND ND 08/08/22 19:34 BA 468228 Carbon Tetrachloride ETO15 30.00 33 94 ND ND 08/08/22 19:34 BA 468228 2-Butanone (MEK) ETO15 30.00 12 44 ND ND 08/08/22 19:34 BA 468228 Ethyl Acetate ETO15 30.00 14 54 ND ND 08/08/22 19:34 BA 468228 Tetrahydrofuran ETO15 30.00 13 44 ND ND 08/08/22 19:34 BA 468228 Benzene ETO15 30.00 13 48 280 87.77 08/08/22 19:34 BA 468228 Total Page Count: 18 Page 4 of 18
Packet Page 2374

SAMPLE RESULTS
Report prepared for:

Date Reported: 08/12/22
Date/Time Received: 08/05/22, 6:00 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 10.4
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3597
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/05/22 / 15:10
15799.004.000
Cedar Blvd
SG-5 @ 6'
Sample Matrix: Air
Lab Sample ID: 2208064-001A
SDG:

Prep Batch ID: 1143938
Prep Batch Date/Time: 8/8/22 1:30:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
TAME ETO15 30.00 20 63 ND ND 08/08/22 19:34 BA 468228
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 08/08/22 19:34 BA 468228 Trichloroethylene ETO15 30.00 24 81 10000 1,862.20 E 08/08/22 19:34 BA 468228 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 08/08/22 19:34 BA 468228 Bromodichloromethane ETO15 30.00 22 100 ND ND 08/08/22 19:34 BA 468228 1,4-Dioxane ETO15 30.00 54 110 ND ND 08/08/22 19:34 BA 468228 trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 08/08/22 19:34 BA 468228 Toluene ETO15 30.00 23 57 ND ND 08/08/22 19:34 BA 468228 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 08/08/22 19:34 BA 468228 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 08/08/22 19:34 BA 468228 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 08/08/22 19:34 BA 468228 Dibromochloromethane ETO15 30.00 33 130 ND ND 08/08/22 19:34 BA 468228 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 08/08/22 19:34 BA 468228 2-Hexanone ETO15 30.00 20 62 ND ND 08/08/22 19:34 BA 468228 Ethyl Benzene ETO15 30.00 19 65 ND ND 08/08/22 19:34 BA 468228 Chlorobenzene ETO15 30.00 18 69 ND ND 08/08/22 19:34 BA 468228 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 08/08/22 19:34 BA 468228 m,p-Xylene ETO15 30.00 29 65 ND ND 08/08/22 19:34 BA 468228 o-Xylene ETO15 30.00 9.1 65 ND ND 08/08/22 19:34 BA 468228 Styrene ETO15 30.00 14 64 ND ND 08/08/22 19:34 BA 468228 Bromoform ETO15 30.00 39 160 ND ND 08/08/22 19:34 BA 468228 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 08/08/22 19:34 BA 468228 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 08/08/22 19:34 BA 468228 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 08/08/22 19:34 BA 468228 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 08/08/22 19:34 BA 468228 1,4-Dichlorobenzene ETO15 30.00 22 90 ND ND 08/08/22 19:34 BA 468228 1,3-Dichlorobenzene ETO15 30.00 40 90 ND ND 08/08/22 19:34 BA 468228 1,2-Dichlorobenzene ETO15 30.00 32 90 ND ND 08/08/22 19:34 BA 468228 Hexachlorobutadiene ETO15 30.00 56 160 ND ND 08/08/22 19:34 BA 468228 1,2,4-Trichlorobenzene ETO15 30.00 65 110 ND ND 08/08/22 19:34 BA 468228 Naphthalene ETO15 30.00 38 79 ND ND 08/08/22 19:34 BA 468228 (S) 4-Bromofluorobenzene ETO15 30.00 50 150 58 % 08/08/22 19:34 BA 468228 Prep Batch ID: 1143980
Prep Batch Date/Time: 8/10/22 11:33:00AM
Prep Analyst: BPATEL
Prep Method: TO15-P
Total Page Count: 18 Page 5 of 18
Packet Page 2375

SAMPLE RESULTS
Report prepared for:

Date Reported: 08/12/22
Date/Time Received: 08/05/22, 6:00 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 10.4
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3597
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/05/22 / 15:10
15799.004.000
Cedar Blvd
SG-5 @ 6'
Sample Matrix: Air
Lab Sample ID: 2208064-001A
SDG:

Prep Batch ID: 1143980
Prep Batch Date/Time: 8/10/22 11:33:00AM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
cis-1,2-Dichloroethene ETO15 240.0 200 480 31000 7,828.28 08/10/22 21:45 BA 468265 1,1,1-Trichloroethane ETO15 240.0 190 660 11000 2,014.65 08/10/22 21:45 BA 468265 Tetrachloroethylene ETO15 240.0 350 810 47000 6,932.15 08/10/22 21:45 BA 468265 (S) 4-Bromofluorobenzene ETO15 240.0 50 150 91 % 08/10/22 21:45 BA 468265 Total Page Count: 18 Page 6 of 18
Packet Page 2376

SAMPLE RESULTS
Report prepared for:

Date Reported: 08/12/22
Date/Time Received: 08/05/22, 6:00 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12298
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/05/22 / 15:15
15799.004.000
Cedar Blvd
SG-5 @ 10'
Sample Matrix: Air
Lab Sample ID: 2208064-002A
SDG:

Prep Batch ID: 1144543
Prep Batch Date/Time: 8/25/22 4:30:00PM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 2.40 0.025 0.12 7.4 08/25/22 18:48 BA 468795 Prep Batch ID: 1143938
Prep Batch Date/Time: 8/8/22 1:30:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 30.00 47 74 ND ND 08/08/22 19:59 BA 468228 1,1-Difluoroethane ETO15 30.00 10 410 ND ND 08/08/22 19:59 BA 468228 1,2-Dichlorotetrafluoroethane ETO15 30.00 42 100 ND ND 08/08/22 19:59 BA 468228 Chloromethane ETO15 30.00 61 120 ND ND 08/08/22 19:59 BA 468228 Vinyl Chloride ETO15 30.00 6.8 38 2100 820.31 08/08/22 19:59 BA 468228 1,3-Butadiene ETO15 30.00 10 33 ND ND 08/08/22 19:59 BA 468228 Bromomethane ETO15 30.00 20 58 ND ND 08/08/22 19:59 BA 468228 Chloroethane ETO15 30.00 24 40 ND ND 08/08/22 19:59 BA 468228 Trichlorofluoromethane ETO15 30.00 17 84 ND ND 08/08/22 19:59 BA 468228 1,1-Dichloroethene ETO15 30.00 25 60 310 78.09 08/08/22 19:59 BA 468228 Freon 113 ETO15 30.00 31 110 ND ND 08/08/22 19:59 BA 468228 Carbon Disulfide ETO15 30.00 11 47 ND ND 08/08/22 19:59 BA 468228 2-Propanol (Isopropyl Alcohol) ETO15 30.00 38 370 ND ND 08/08/22 19:59 BA 468228 Methylene Chloride ETO15 30.00 21 310 ND ND 08/08/22 19:59 BA 468228 Acetone ETO15 30.00 12 360 ND ND 08/08/22 19:59 BA 468228 trans-1,2-Dichloroethene ETO15 30.00 14 59 86 21.72 08/08/22 19:59 BA 468228 Hexane ETO15 30.00 14 53 150 42.61 08/08/22 19:59 BA 468228 MTBE ETO15 30.00 13 54 ND ND 08/08/22 19:59 BA 468228
tert-Butanol ETO15 30.00 19 45 ND ND 08/08/22 19:59 BA 468228 Diisopropyl ether (DIPE) ETO15 30.00 22 63 ND ND 08/08/22 19:59 BA 468228 1,1-Dichloroethane ETO15 30.00 16 61 5500 1,358.02 08/08/22 19:59 BA 468228 ETBE ETO15 30.00 9.8 63 ND ND 08/08/22 19:59 BA 468228
Chloroform ETO15 30.00 29 73 ND ND 08/08/22 19:59 BA 468228 Vinyl Acetate ETO15 30.00 23 53 ND ND 08/08/22 19:59 BA 468228 Carbon Tetrachloride ETO15 30.00 33 94 ND ND 08/08/22 19:59 BA 468228 2-Butanone (MEK) ETO15 30.00 12 44 ND ND 08/08/22 19:59 BA 468228 Ethyl Acetate ETO15 30.00 14 54 ND ND 08/08/22 19:59 BA 468228 Tetrahydrofuran ETO15 30.00 13 44 ND ND 08/08/22 19:59 BA 468228 Benzene ETO15 30.00 13 48 310 97.18 08/08/22 19:59 BA 468228 Total Page Count: 18 Page 7 of 18
Packet Page 2377

SAMPLE RESULTS
Report prepared for:

Date Reported: 08/12/22
Date/Time Received: 08/05/22, 6:00 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12298
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/05/22 / 15:15
15799.004.000
Cedar Blvd
SG-5 @ 10'
Sample Matrix: Air
Lab Sample ID: 2208064-002A
SDG:

Prep Batch ID: 1143938
Prep Batch Date/Time: 8/8/22 1:30:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
TAME ETO15 30.00 20 63 ND ND 08/08/22 19:59 BA 468228
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 08/08/22 19:59 BA 468228 Trichloroethylene ETO15 30.00 24 81 9200 1,713.22 08/08/22 19:59 BA 468228 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 08/08/22 19:59 BA 468228 Bromodichloromethane ETO15 30.00 22 100 ND ND 08/08/22 19:59 BA 468228 1,4-Dioxane ETO15 30.00 54 110 ND ND 08/08/22 19:59 BA 468228 trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 08/08/22 19:59 BA 468228 Toluene ETO15 30.00 23 57 140 37.14 08/08/22 19:59 BA 468228 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 08/08/22 19:59 BA 468228 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 08/08/22 19:59 BA 468228 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 08/08/22 19:59 BA 468228 Dibromochloromethane ETO15 30.00 33 130 ND ND 08/08/22 19:59 BA 468228 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 08/08/22 19:59 BA 468228 2-Hexanone ETO15 30.00 20 62 ND ND 08/08/22 19:59 BA 468228 Ethyl Benzene ETO15 30.00 19 65 160 36.87 08/08/22 19:59 BA 468228 Chlorobenzene ETO15 30.00 18 69 ND ND 08/08/22 19:59 BA 468228 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 08/08/22 19:59 BA 468228 m,p-Xylene ETO15 30.00 29 65 700 161.29 08/08/22 19:59 BA 468228 o-Xylene ETO15 30.00 9.1 65 670 154.38 08/08/22 19:59 BA 468228 Styrene ETO15 30.00 14 64 ND ND 08/08/22 19:59 BA 468228 Bromoform ETO15 30.00 39 160 ND ND 08/08/22 19:59 BA 468228 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 08/08/22 19:59 BA 468228 4-Ethyl Toluene ETO15 30.00 16 74 140 28.46 08/08/22 19:59 BA 468228 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 180 36.59 08/08/22 19:59 BA 468228 1,2,4-Trimethylbenzene ETO15 30.00 18 74 400 81.30 08/08/22 19:59 BA 468228 1,4-Dichlorobenzene ETO15 30.00 22 90 ND ND 08/08/22 19:59 BA 468228 1,3-Dichlorobenzene ETO15 30.00 40 90 ND ND 08/08/22 19:59 BA 468228 1,2-Dichlorobenzene ETO15 30.00 32 90 ND ND 08/08/22 19:59 BA 468228 Hexachlorobutadiene ETO15 30.00 56 160 ND ND 08/08/22 19:59 BA 468228 1,2,4-Trichlorobenzene ETO15 30.00 65 110 ND ND 08/08/22 19:59 BA 468228 Naphthalene ETO15 30.00 38 79 ND ND 08/08/22 19:59 BA 468228 (S) 4-Bromofluorobenzene ETO15 30.00 50 150 41 % S 08/08/22 19:59 BA 468228 NOTE: S - Surrogate recovery out of limits and attributed to matrix interference (heavy end hydrocarbons).

Prep Batch ID: 1143980
Prep Batch Date/Time: 8/10/22 11:33:00AM
Prep Analyst: BPATEL
Prep Method: TO15-P
Total Page Count: 18 Page 8 of 18
Packet Page 2378

SAMPLE RESULTS
Report prepared for:

Date Reported: 08/12/22
Date/Time Received: 08/05/22, 6:00 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12298
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/05/22 / 15:15
15799.004.000
Cedar Blvd
SG-5 @ 10'
Sample Matrix: Air
Lab Sample ID: 2208064-002A
SDG:

Prep Batch ID: 1143980
Prep Batch Date/Time: 8/10/22 11:33:00AM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
cis-1,2-Dichloroethene ETO15 240.0 200 480 33000 8,333.33 08/10/22 22:09 BA 468265 1,1,1-Trichloroethane ETO15 240.0 190 660 10000 1,831.50 08/10/22 22:09 BA 468265 Tetrachloroethylene ETO15 240.0 350 810 45000 6,637.17 08/10/22 22:09 BA 468265 (S) 4-Bromofluorobenzene ETO15 240.0 50 150 94 % 08/10/22 22:09 BA 468265 Total Page Count: 18 Page 9 of 18
Packet Page 2379

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 6116
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/23/22 / 13:33
15799.004.000
38600 Cedar Blvd
SG-20
Sample Matrix: Air
Lab Sample ID: 2208230-001A
SDG:

Page 6 of 39 ends

2380

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 6116
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/23/22 / 13:33
15799.004.000
38600 Cedar Blvd
SG-20
Sample Matrix: Air
Lab Sample ID: 2208230-001A
SDG:

Page 7 of 39 ends

2381

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 6116
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/23/22 / 13:33
15799.004.000
38600 Cedar Blvd
SG-20
Sample Matrix: Air
Lab Sample ID: 2208230-001A
SDG:

Page 8 of 39 ends

2382

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12221
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/23/22 / 13:49
15799.004.000
38600 Cedar Blvd
SG-21
Sample Matrix: Air
Lab Sample ID: 2208230-002A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 6.70 0.071 0.34 1.0 09/02/22 10:51 BA 468853 NOTE: Low Oxygen likely due to high microbial activity (high concentration of non-target gas).

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 30.00 47 74 ND ND 09/01/22 20:48 BA 468818 1,1-Difluoroethane ETO15 30.00 10 410 74000 27,407.41 E 09/01/22 20:48 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 30.00 42 100 ND ND 09/01/22 20:48 BA 468818 Chloromethane ETO15 30.00 61 120 ND ND 09/01/22 20:48 BA 468818 Vinyl Chloride ETO15 30.00 6.8 38 ND ND 09/01/22 20:48 BA 468818 1,3-Butadiene ETO15 30.00 10 33 ND ND 09/01/22 20:48 BA 468818 Bromomethane ETO15 30.00 20 58 ND ND 09/01/22 20:48 BA 468818 Chloroethane ETO15 30.00 24 40 41 15.53 09/01/22 20:48 BA 468818 Trichlorofluoromethane ETO15 30.00 17 84 ND ND 09/01/22 20:48 BA 468818 1,1-Dichloroethene ETO15 30.00 25 60 ND ND 09/01/22 20:48 BA 468818 Freon 113 ETO15 30.00 31 110 ND ND 09/01/22 20:48 BA 468818 Carbon Disulfide ETO15 30.00 11 47 ND ND 09/01/22 20:48 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 30.00 38 370 ND ND 09/01/22 20:48 BA 468818 Methylene Chloride ETO15 30.00 21 310 ND ND 09/01/22 20:48 BA 468818 Acetone ETO15 30.00 12 360 ND ND 09/01/22 20:48 BA 468818 trans-1,2-Dichloroethene ETO15 30.00 14 59 ND ND 09/01/22 20:48 BA 468818 Hexane ETO15 30.00 14 53 3900 1,107.95 09/01/22 20:48 BA 468818 MTBE ETO15 30.00 13 54 ND ND 09/01/22 20:48 BA 468818
tert-Butanol ETO15 30.00 19 45 ND ND 09/01/22 20:48 BA 468818 Diisopropyl ether (DIPE) ETO15 30.00 22 63 ND ND 09/01/22 20:48 BA 468818 1,1-Dichloroethane ETO15 30.00 16 61 ND ND 09/01/22 20:48 BA 468818 ETBE ETO15 30.00 9.8 63 ND ND 09/01/22 20:48 BA 468818
cis-1,2-Dichloroethene ETO15 30.00 25 59 860 217.17 09/01/22 20:48 BA 468818 Chloroform ETO15 30.00 29 73 600 122.95 09/01/22 20:48 BA 468818 Total Page Count: 39
Packet Page

Page 9 of 39 ends

2383

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12221
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/23/22 / 13:49
15799.004.000
38600 Cedar Blvd
SG-21
Sample Matrix: Air
Lab Sample ID: 2208230-002A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Vinyl Acetate ETO15 30.00 23 53 ND ND 09/01/22 20:48 BA 468818 Carbon Tetrachloride ETO15 30.00 33 94 ND ND 09/01/22 20:48 BA 468818 1,1,1-Trichloroethane ETO15 30.00 24 82 ND ND 09/01/22 20:48 BA 468818 2-Butanone (MEK) ETO15 30.00 12 44 ND ND 09/01/22 20:48 BA 468818 Ethyl Acetate ETO15 30.00 14 54 ND ND 09/01/22 20:48 BA 468818 Tetrahydrofuran ETO15 30.00 13 44 ND ND 09/01/22 20:48 BA 468818 Benzene ETO15 30.00 13 48 ND ND 09/01/22 20:48 BA 468818 TAME ETO15 30.00 20 63 ND ND 09/01/22 20:48 BA 468818
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 09/01/22 20:48 BA 468818 Trichloroethylene ETO15 30.00 24 81 ND ND 09/01/22 20:48 BA 468818 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 09/01/22 20:48 BA 468818 Bromodichloromethane ETO15 30.00 22 100 ND ND 09/01/22 20:48 BA 468818 1,4-Dioxane ETO15 30.00 54 110 ND ND 09/01/22 20:48 BA 468818 trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 09/01/22 20:48 BA 468818 Toluene ETO15 30.00 23 57 ND ND 09/01/22 20:48 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 09/01/22 20:48 BA 468818 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 09/01/22 20:48 BA 468818 Tetrachloroethylene ETO15 30.00 44 100 ND ND 09/01/22 20:48 BA 468818 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 09/01/22 20:48 BA 468818 Dibromochloromethane ETO15 30.00 33 130 ND ND 09/01/22 20:48 BA 468818 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 09/01/22 20:48 BA 468818 2-Hexanone ETO15 30.00 20 62 ND ND 09/01/22 20:48 BA 468818 Ethyl Benzene ETO15 30.00 19 65 ND ND 09/01/22 20:48 BA 468818 Chlorobenzene ETO15 30.00 18 69 ND ND 09/01/22 20:48 BA 468818 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/01/22 20:48 BA 468818 m,p-Xylene ETO15 30.00 29 65 ND ND 09/01/22 20:48 BA 468818 o-Xylene ETO15 30.00 9.1 65 ND ND 09/01/22 20:48 BA 468818 Styrene ETO15 30.00 14 64 ND ND 09/01/22 20:48 BA 468818 Bromoform ETO15 30.00 39 160 ND ND 09/01/22 20:48 BA 468818 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/01/22 20:48 BA 468818 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 09/01/22 20:48 BA 468818 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 09/01/22 20:48 BA 468818 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 09/01/22 20:48 BA 468818 Total Page Count: 39
Packet Page

Page 10 of 39 ends

2384

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12221
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/23/22 / 13:49
15799.004.000
38600 Cedar Blvd
SG-21
Sample Matrix: Air
Lab Sample ID: 2208230-002A
SDG:

Page 11 of 39 ends

2385

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 8344
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 10:21
15799.004.000
38600 Cedar Blvd
SG-15
Sample Matrix: Air
Lab Sample ID: 2208230-003A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 19.00 0.20 0.95 11 09/02/22 11:17 BA 468853 Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 1.00 1.6 2.5 ND ND 09/02/22 7:18 BA 468818 1,1-Difluoroethane ETO15 1.00 0.35 14 ND ND 09/02/22 7:18 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 1.00 1.4 3.5 ND ND 09/02/22 7:18 BA 468818 Chloromethane ETO15 1.00 2.0 4.1 ND ND 09/02/22 7:18 BA 468818 Vinyl Chloride ETO15 1.00 0.23 1.3 ND ND 09/02/22 7:18 BA 468818 1,3-Butadiene ETO15 1.00 0.34 1.1 ND ND 09/02/22 7:18 BA 468818 Bromomethane ETO15 1.00 0.66 1.9 ND ND 09/02/22 7:18 BA 468818 Chloroethane ETO15 1.00 0.81 1.3 ND ND 09/02/22 7:18 BA 468818 Trichlorofluoromethane ETO15 1.00 0.56 2.8 ND ND 09/02/22 7:18 BA 468818 1,1-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 09/02/22 7:18 BA 468818 Freon 113 ETO15 1.00 1.0 3.8 ND ND 09/02/22 7:18 BA 468818 Carbon Disulfide ETO15 1.00 0.37 1.6 15 4.82 09/02/22 7:18 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 1.00 1.3 12 ND ND 09/02/22 7:18 BA 468818 Methylene Chloride ETO15 1.00 0.70 10 ND ND 09/02/22 7:18 BA 468818 Acetone ETO15 1.00 0.40 12 50 21.01 09/02/22 7:18 BA 468818 trans-1,2-Dichloroethene ETO15 1.00 0.48 2.0 ND ND 09/02/22 7:18 BA 468818 Hexane ETO15 1.00 0.46 1.8 2.2 0.63 09/02/22 7:18 BA 468818 MTBE ETO15 1.00 0.44 1.8 ND ND 09/02/22 7:18 BA 468818
tert-Butanol ETO15 1.00 0.62 1.5 ND ND 09/02/22 7:18 BA 468818 Diisopropyl ether (DIPE) ETO15 1.00 0.74 2.1 ND ND 09/02/22 7:18 BA 468818 1,1-Dichloroethane ETO15 1.00 0.54 2.0 ND ND 09/02/22 7:18 BA 468818 ETBE ETO15 1.00 0.33 2.1 ND ND 09/02/22 7:18 BA 468818
cis-1,2-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 09/02/22 7:18 BA 468818 Chloroform ETO15 1.00 0.97 2.4 9.3 1.91 09/02/22 7:18 BA 468818 Vinyl Acetate ETO15 1.00 0.76 1.8 ND ND 09/02/22 7:18 BA 468818 Total Page Count: 39
Packet Page

Page 12 of 39 ends

2386

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 8344
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 10:21
15799.004.000
38600 Cedar Blvd
SG-15
Sample Matrix: Air
Lab Sample ID: 2208230-003A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Carbon Tetrachloride ETO15 1.00 1.1 3.1 ND ND 09/02/22 7:18 BA 468818 1,1,1-Trichloroethane ETO15 1.00 0.79 2.7 9.4 1.72 09/02/22 7:18 BA 468818 2-Butanone (MEK) ETO15 1.00 0.39 1.5 3.1 1.05 09/02/22 7:18 BA 468818 Ethyl Acetate ETO15 1.00 0.48 1.8 ND ND 09/02/22 7:18 BA 468818 Tetrahydrofuran ETO15 1.00 0.45 1.5 ND ND 09/02/22 7:18 BA 468818 Benzene ETO15 1.00 0.44 1.6 1.8 0.56 09/02/22 7:18 BA 468818 TAME ETO15 1.00 0.67 2.1 ND ND 09/02/22 7:18 BA 468818
1,2-Dichloroethane (EDC) ETO15 1.00 0.42 2.0 ND ND 09/02/22 7:18 BA 468818 Trichloroethylene ETO15 1.00 0.81 2.7 ND ND 09/02/22 7:18 BA 468818 1,2-Dichloropropane ETO15 1.00 0.76 2.3 ND ND 09/02/22 7:18 BA 468818 Bromodichloromethane ETO15 1.00 0.74 3.4 ND ND 09/02/22 7:18 BA 468818 1,4-Dioxane ETO15 1.00 1.8 3.6 ND ND 09/02/22 7:18 BA 468818 trans-1,3-Dichloropropene ETO15 1.00 1.1 2.3 ND ND 09/02/22 7:18 BA 468818 Toluene ETO15 1.00 0.75 1.9 12 3.18 09/02/22 7:18 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 1.00 0.75 2.1 ND ND 09/02/22 7:18 BA 468818 cis-1,3-Dichloropropene ETO15 1.00 0.42 2.3 ND ND 09/02/22 7:18 BA 468818 Tetrachloroethylene ETO15 1.00 1.5 3.4 ND ND 09/02/22 7:18 BA 468818 1,1,2-Trichloroethane ETO15 1.00 0.58 2.7 ND ND 09/02/22 7:18 BA 468818 Dibromochloromethane ETO15 1.00 1.1 4.3 ND ND 09/02/22 7:18 BA 468818 1,2-Dibromoethane (EDB) ETO15 1.00 0.74 3.8 ND ND 09/02/22 7:18 BA 468818 2-Hexanone ETO15 1.00 0.65 2.1 ND ND 09/02/22 7:18 BA 468818 Ethyl Benzene ETO15 1.00 0.63 2.2 ND ND 09/02/22 7:18 BA 468818 Chlorobenzene ETO15 1.00 0.60 2.3 ND ND 09/02/22 7:18 BA 468818 1,1,1,2-Tetrachloroethane ETO15 1.00 0.84 3.4 ND ND 09/02/22 7:18 BA 468818 m,p-Xylene ETO15 1.00 0.98 2.2 7.1 1.64 09/02/22 7:18 BA 468818 o-Xylene ETO15 1.00 0.30 2.2 3.9 0.90 09/02/22 7:18 BA 468818 Styrene ETO15 1.00 0.46 2.1 ND ND 09/02/22 7:18 BA 468818 Bromoform ETO15 1.00 1.3 5.2 ND ND 09/02/22 7:18 BA 468818 1,1,2,2-Tetrachloroethane ETO15 1.00 0.82 3.4 ND ND 09/02/22 7:18 BA 468818 4-Ethyl Toluene ETO15 1.00 0.55 2.5 ND ND 09/02/22 7:18 BA 468818 1,3,5-Trimethylbenzene ETO15 1.00 0.30 2.5 ND ND 09/02/22 7:18 BA 468818 1,2,4-Trimethylbenzene ETO15 1.00 0.60 2.5 ND ND 09/02/22 7:18 BA 468818 1,4-Dichlorobenzene ETO15 1.00 0.75 3.0 ND ND 09/02/22 7:18 BA 468818 Total Page Count: 39
Packet Page

Page 13 of 39 ends

2387

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 8344
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 10:21
15799.004.000
38600 Cedar Blvd
SG-15
Sample Matrix: Air
Lab Sample ID: 2208230-003A
SDG:

Page 14 of 39 ends

2388

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3966
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 10:29
15799.004.000
38600 Cedar Blvd
SG-14
Sample Matrix: Air
Lab Sample ID: 2208230-004A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 3.90 0.041 0.20 14 09/02/22 11:44 BA 468853 Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 1.00 1.6 2.5 ND ND 09/02/22 7:46 BA 468818 1,1-Difluoroethane ETO15 1.00 0.35 14 ND ND 09/02/22 7:46 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 1.00 1.4 3.5 ND ND 09/02/22 7:46 BA 468818 Chloromethane ETO15 1.00 2.0 4.1 ND ND 09/02/22 7:46 BA 468818 Vinyl Chloride ETO15 1.00 0.23 1.3 ND ND 09/02/22 7:46 BA 468818 1,3-Butadiene ETO15 1.00 0.34 1.1 ND ND 09/02/22 7:46 BA 468818 Bromomethane ETO15 1.00 0.66 1.9 ND ND 09/02/22 7:46 BA 468818 Chloroethane ETO15 1.00 0.81 1.3 ND ND 09/02/22 7:46 BA 468818 Trichlorofluoromethane ETO15 1.00 0.56 2.8 ND ND 09/02/22 7:46 BA 468818 1,1-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 09/02/22 7:46 BA 468818 Freon 113 ETO15 1.00 1.0 3.8 ND ND 09/02/22 7:46 BA 468818 Carbon Disulfide ETO15 1.00 0.37 1.6 6.4 2.06 09/02/22 7:46 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 1.00 1.3 12 ND ND 09/02/22 7:46 BA 468818 Methylene Chloride ETO15 1.00 0.70 10 ND ND 09/02/22 7:46 BA 468818 Acetone ETO15 1.00 0.40 12 42 17.65 09/02/22 7:46 BA 468818 trans-1,2-Dichloroethene ETO15 1.00 0.48 2.0 ND ND 09/02/22 7:46 BA 468818 Hexane ETO15 1.00 0.46 1.8 ND ND 09/02/22 7:46 BA 468818 MTBE ETO15 1.00 0.44 1.8 ND ND 09/02/22 7:46 BA 468818
tert-Butanol ETO15 1.00 0.62 1.5 ND ND 09/02/22 7:46 BA 468818 Diisopropyl ether (DIPE) ETO15 1.00 0.74 2.1 ND ND 09/02/22 7:46 BA 468818 1,1-Dichloroethane ETO15 1.00 0.54 2.0 ND ND 09/02/22 7:46 BA 468818 ETBE ETO15 1.00 0.33 2.1 ND ND 09/02/22 7:46 BA 468818
cis-1,2-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 09/02/22 7:46 BA 468818 Chloroform ETO15 1.00 0.97 2.4 4.6 0.94 09/02/22 7:46 BA 468818 Vinyl Acetate ETO15 1.00 0.76 1.8 ND ND 09/02/22 7:46 BA 468818 Total Page Count: 39
Packet Page

Page 15 of 39 ends

2389

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3966
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 10:29
15799.004.000
38600 Cedar Blvd
SG-14
Sample Matrix: Air
Lab Sample ID: 2208230-004A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Carbon Tetrachloride ETO15 1.00 1.1 3.1 ND ND 09/02/22 7:46 BA 468818 1,1,1-Trichloroethane ETO15 1.00 0.79 2.7 29 5.31 09/02/22 7:46 BA 468818 2-Butanone (MEK) ETO15 1.00 0.39 1.5 13 4.41 09/02/22 7:46 BA 468818 Ethyl Acetate ETO15 1.00 0.48 1.8 ND ND 09/02/22 7:46 BA 468818 Tetrahydrofuran ETO15 1.00 0.45 1.5 ND ND 09/02/22 7:46 BA 468818 Benzene ETO15 1.00 0.44 1.6 ND ND 09/02/22 7:46 BA 468818 TAME ETO15 1.00 0.67 2.1 ND ND 09/02/22 7:46 BA 468818
1,2-Dichloroethane (EDC) ETO15 1.00 0.42 2.0 ND ND 09/02/22 7:46 BA 468818 Trichloroethylene ETO15 1.00 0.81 2.7 ND ND 09/02/22 7:46 BA 468818 1,2-Dichloropropane ETO15 1.00 0.76 2.3 ND ND 09/02/22 7:46 BA 468818 Bromodichloromethane ETO15 1.00 0.74 3.4 ND ND 09/02/22 7:46 BA 468818 1,4-Dioxane ETO15 1.00 1.8 3.6 ND ND 09/02/22 7:46 BA 468818 trans-1,3-Dichloropropene ETO15 1.00 1.1 2.3 ND ND 09/02/22 7:46 BA 468818 Toluene ETO15 1.00 0.75 1.9 6.1 1.62 09/02/22 7:46 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 1.00 0.75 2.1 3.2 0.78 09/02/22 7:46 BA 468818 cis-1,3-Dichloropropene ETO15 1.00 0.42 2.3 ND ND 09/02/22 7:46 BA 468818 Tetrachloroethylene ETO15 1.00 1.5 3.4 15 2.21 09/02/22 7:46 BA 468818 1,1,2-Trichloroethane ETO15 1.00 0.58 2.7 ND ND 09/02/22 7:46 BA 468818 Dibromochloromethane ETO15 1.00 1.1 4.3 ND ND 09/02/22 7:46 BA 468818 1,2-Dibromoethane (EDB) ETO15 1.00 0.74 3.8 ND ND 09/02/22 7:46 BA 468818 2-Hexanone ETO15 1.00 0.65 2.1 ND ND 09/02/22 7:46 BA 468818 Ethyl Benzene ETO15 1.00 0.63 2.2 ND ND 09/02/22 7:46 BA 468818 Chlorobenzene ETO15 1.00 0.60 2.3 ND ND 09/02/22 7:46 BA 468818 1,1,1,2-Tetrachloroethane ETO15 1.00 0.84 3.4 ND ND 09/02/22 7:46 BA 468818 m,p-Xylene ETO15 1.00 0.98 2.2 ND ND 09/02/22 7:46 BA 468818 o-Xylene ETO15 1.00 0.30 2.2 ND ND 09/02/22 7:46 BA 468818 Styrene ETO15 1.00 0.46 2.1 ND ND 09/02/22 7:46 BA 468818 Bromoform ETO15 1.00 1.3 5.2 ND ND 09/02/22 7:46 BA 468818 1,1,2,2-Tetrachloroethane ETO15 1.00 0.82 3.4 ND ND 09/02/22 7:46 BA 468818 4-Ethyl Toluene ETO15 1.00 0.55 2.5 ND ND 09/02/22 7:46 BA 468818 1,3,5-Trimethylbenzene ETO15 1.00 0.30 2.5 ND ND 09/02/22 7:46 BA 468818 1,2,4-Trimethylbenzene ETO15 1.00 0.60 2.5 ND ND 09/02/22 7:46 BA 468818 1,4-Dichlorobenzene ETO15 1.00 0.75 3.0 ND ND 09/02/22 7:46 BA 468818 Total Page Count: 39
Packet Page

Page 16 of 39 ends

2390

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3966
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 10:29
15799.004.000
38600 Cedar Blvd
SG-14
Sample Matrix: Air
Lab Sample ID: 2208230-004A
SDG:

Page 17 of 39 ends

2391

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A7558
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 11:51
15799.004.000
38600 Cedar Blvd
SG-17
Sample Matrix: Air
Lab Sample ID: 2208230-005A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 5.10 0.054 0.26 0.28 09/02/22 12:11 BA 468853 NOTE: Low Oxygen likely due to high microbial activity (high concentration of non-target gases).

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 30.00 47 74 ND ND 09/01/22 22:02 BA 468818 1,1-Difluoroethane ETO15 30.00 10 410 ND ND 09/01/22 22:02 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 30.00 42 100 ND ND 09/01/22 22:02 BA 468818 Chloromethane ETO15 30.00 61 120 ND ND 09/01/22 22:02 BA 468818 Vinyl Chloride ETO15 30.00 6.8 38 ND ND 09/01/22 22:02 BA 468818 1,3-Butadiene ETO15 30.00 10 33 ND ND 09/01/22 22:02 BA 468818 Bromomethane ETO15 30.00 20 58 ND ND 09/01/22 22:02 BA 468818 Chloroethane ETO15 30.00 24 40 ND ND 09/01/22 22:02 BA 468818 Trichlorofluoromethane ETO15 30.00 17 84 ND ND 09/01/22 22:02 BA 468818 1,1-Dichloroethene ETO15 30.00 25 60 ND ND 09/01/22 22:02 BA 468818 Freon 113 ETO15 30.00 31 110 ND ND 09/01/22 22:02 BA 468818 Carbon Disulfide ETO15 30.00 11 47 ND ND 09/01/22 22:02 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 30.00 38 370 ND ND 09/01/22 22:02 BA 468818 Methylene Chloride ETO15 30.00 21 310 ND ND 09/01/22 22:02 BA 468818 trans-1,2-Dichloroethene ETO15 30.00 14 59 ND ND 09/01/22 22:02 BA 468818 Hexane ETO15 30.00 14 53 330 93.75 09/01/22 22:02 BA 468818 MTBE ETO15 30.00 13 54 ND ND 09/01/22 22:02 BA 468818
tert-Butanol ETO15 30.00 19 45 ND ND 09/01/22 22:02 BA 468818 Diisopropyl ether (DIPE) ETO15 30.00 22 63 ND ND 09/01/22 22:02 BA 468818 1,1-Dichloroethane ETO15 30.00 16 61 ND ND 09/01/22 22:02 BA 468818 ETBE ETO15 30.00 9.8 63 ND ND 09/01/22 22:02 BA 468818
cis-1,2-Dichloroethene ETO15 30.00 25 59 ND ND 09/01/22 22:02 BA 468818 Chloroform ETO15 30.00 29 73 720 147.54 09/01/22 22:02 BA 468818 Vinyl Acetate ETO15 30.00 23 53 ND ND 09/01/22 22:02 BA 468818 Total Page Count: 39
Packet Page

Page 18 of 39 ends

2392

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A7558
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 11:51
15799.004.000
38600 Cedar Blvd
SG-17
Sample Matrix: Air
Lab Sample ID: 2208230-005A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Carbon Tetrachloride ETO15 30.00 33 94 ND ND 09/01/22 22:02 BA 468818 1,1,1-Trichloroethane ETO15 30.00 24 82 ND ND 09/01/22 22:02 BA 468818 2-Butanone (MEK) ETO15 30.00 12 44 ND ND 09/01/22 22:02 BA 468818 Ethyl Acetate ETO15 30.00 14 54 ND ND 09/01/22 22:02 BA 468818 Tetrahydrofuran ETO15 30.00 13 44 ND ND 09/01/22 22:02 BA 468818 Benzene ETO15 30.00 13 48 890 279.00 09/01/22 22:02 BA 468818 TAME ETO15 30.00 20 63 ND ND 09/01/22 22:02 BA 468818
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 09/01/22 22:02 BA 468818 Trichloroethylene ETO15 30.00 24 81 ND ND 09/01/22 22:02 BA 468818 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 09/01/22 22:02 BA 468818 Bromodichloromethane ETO15 30.00 22 100 ND ND 09/01/22 22:02 BA 468818 1,4-Dioxane ETO15 30.00 54 110 ND ND 09/01/22 22:02 BA 468818 trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 09/01/22 22:02 BA 468818 Toluene ETO15 30.00 23 57 58 15.38 09/01/22 22:02 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 09/01/22 22:02 BA 468818 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 09/01/22 22:02 BA 468818 Tetrachloroethylene ETO15 30.00 44 100 ND ND 09/01/22 22:02 BA 468818 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 09/01/22 22:02 BA 468818 Dibromochloromethane ETO15 30.00 33 130 ND ND 09/01/22 22:02 BA 468818 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 09/01/22 22:02 BA 468818 2-Hexanone ETO15 30.00 20 62 ND ND 09/01/22 22:02 BA 468818 Ethyl Benzene ETO15 30.00 19 65 ND ND 09/01/22 22:02 BA 468818 Chlorobenzene ETO15 30.00 18 69 ND ND 09/01/22 22:02 BA 468818 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/01/22 22:02 BA 468818 m,p-Xylene ETO15 30.00 29 65 ND ND 09/01/22 22:02 BA 468818 o-Xylene ETO15 30.00 9.1 65 ND ND 09/01/22 22:02 BA 468818 Styrene ETO15 30.00 14 64 ND ND 09/01/22 22:02 BA 468818 Bromoform ETO15 30.00 39 160 ND ND 09/01/22 22:02 BA 468818 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/01/22 22:02 BA 468818 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 09/01/22 22:02 BA 468818 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 09/01/22 22:02 BA 468818 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 09/01/22 22:02 BA 468818 1,4-Dichlorobenzene ETO15 30.00 22 90 ND ND 09/01/22 22:02 BA 468818 Total Page Count: 39
Packet Page

Page 19 of 39 ends

2393

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A7558
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 11:51
15799.004.000
38600 Cedar Blvd
SG-17
Sample Matrix: Air
Lab Sample ID: 2208230-005A
SDG:

Page 20 of 39 ends

2394

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3990
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 11:59
15799.004.000
38600 Cedar Blvd
SG-16
Sample Matrix: Air
Lab Sample ID: 2208230-006A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 5.10 0.054 0.26 0.48 09/02/22 12:38 BA 468853 NOTE: Low Oxygen likely due to high microbial activity (high concentration of non-target gases).

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 30.00 47 74 ND ND 09/01/22 22:27 BA 468818 1,1-Difluoroethane ETO15 30.00 10 410 ND ND 09/01/22 22:27 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 30.00 42 100 ND ND 09/01/22 22:27 BA 468818 Chloromethane ETO15 30.00 61 120 ND ND 09/01/22 22:27 BA 468818 Vinyl Chloride ETO15 30.00 6.8 38 ND ND 09/01/22 22:27 BA 468818 1,3-Butadiene ETO15 30.00 10 33 ND ND 09/01/22 22:27 BA 468818 Bromomethane ETO15 30.00 20 58 ND ND 09/01/22 22:27 BA 468818 Chloroethane ETO15 30.00 24 40 ND ND 09/01/22 22:27 BA 468818 Trichlorofluoromethane ETO15 30.00 17 84 ND ND 09/01/22 22:27 BA 468818 1,1-Dichloroethene ETO15 30.00 25 60 ND ND 09/01/22 22:27 BA 468818 Freon 113 ETO15 30.00 31 110 ND ND 09/01/22 22:27 BA 468818 Carbon Disulfide ETO15 30.00 11 47 ND ND 09/01/22 22:27 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 30.00 38 370 ND ND 09/01/22 22:27 BA 468818 Methylene Chloride ETO15 30.00 21 310 ND ND 09/01/22 22:27 BA 468818 trans-1,2-Dichloroethene ETO15 30.00 14 59 150 37.88 09/01/22 22:27 BA 468818 MTBE ETO15 30.00 13 54 ND ND 09/01/22 22:27 BA 468818
tert-Butanol ETO15 30.00 19 45 ND ND 09/01/22 22:27 BA 468818 Diisopropyl ether (DIPE) ETO15 30.00 22 63 ND ND 09/01/22 22:27 BA 468818 1,1-Dichloroethane ETO15 30.00 16 61 120 29.63 09/01/22 22:27 BA 468818 ETBE ETO15 30.00 9.8 63 ND ND 09/01/22 22:27 BA 468818
cis-1,2-Dichloroethene ETO15 30.00 25 59 350 88.38 09/01/22 22:27 BA 468818 Chloroform ETO15 30.00 29 73 1000 204.92 09/01/22 22:27 BA 468818 Vinyl Acetate ETO15 30.00 23 53 ND ND 09/01/22 22:27 BA 468818 Carbon Tetrachloride ETO15 30.00 33 94 ND ND 09/01/22 22:27 BA 468818 Total Page Count: 39
Packet Page

Page 21 of 39 ends

2395

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3990
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 11:59
15799.004.000
38600 Cedar Blvd
SG-16
Sample Matrix: Air
Lab Sample ID: 2208230-006A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
1,1,1-Trichloroethane ETO15 30.00 24 82 ND ND 09/01/22 22:27 BA 468818 2-Butanone (MEK) ETO15 30.00 12 44 ND ND 09/01/22 22:27 BA 468818 Ethyl Acetate ETO15 30.00 14 54 ND ND 09/01/22 22:27 BA 468818 Tetrahydrofuran ETO15 30.00 13 44 ND ND 09/01/22 22:27 BA 468818 Benzene ETO15 30.00 13 48 1800 564.26 09/01/22 22:27 BA 468818 TAME ETO15 30.00 20 63 ND ND 09/01/22 22:27 BA 468818
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 09/01/22 22:27 BA 468818 Trichloroethylene ETO15 30.00 24 81 ND ND 09/01/22 22:27 BA 468818 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 09/01/22 22:27 BA 468818 Bromodichloromethane ETO15 30.00 22 100 ND ND 09/01/22 22:27 BA 468818 1,4-Dioxane ETO15 30.00 54 110 ND ND 09/01/22 22:27 BA 468818 trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 09/01/22 22:27 BA 468818 Toluene ETO15 30.00 23 57 ND ND 09/01/22 22:27 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 09/01/22 22:27 BA 468818 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 09/01/22 22:27 BA 468818 Tetrachloroethylene ETO15 30.00 44 100 ND ND 09/01/22 22:27 BA 468818 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 09/01/22 22:27 BA 468818 Dibromochloromethane ETO15 30.00 33 130 ND ND 09/01/22 22:27 BA 468818 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 09/01/22 22:27 BA 468818 2-Hexanone ETO15 30.00 20 62 ND ND 09/01/22 22:27 BA 468818 Ethyl Benzene ETO15 30.00 19 65 ND ND 09/01/22 22:27 BA 468818 Chlorobenzene ETO15 30.00 18 69 ND ND 09/01/22 22:27 BA 468818 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/01/22 22:27 BA 468818 m,p-Xylene ETO15 30.00 29 65 100 23.04 09/01/22 22:27 BA 468818 o-Xylene ETO15 30.00 9.1 65 79 18.20 09/01/22 22:27 BA 468818 Styrene ETO15 30.00 14 64 ND ND 09/01/22 22:27 BA 468818 Bromoform ETO15 30.00 39 160 ND ND 09/01/22 22:27 BA 468818 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/01/22 22:27 BA 468818 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 09/01/22 22:27 BA 468818 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 09/01/22 22:27 BA 468818 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 09/01/22 22:27 BA 468818 1,4-Dichlorobenzene ETO15 30.00 22 90 ND ND 09/01/22 22:27 BA 468818 1,3-Dichlorobenzene ETO15 30.00 40 90 ND ND 09/01/22 22:27 BA 468818 Total Page Count: 39
Packet Page

Page 22 of 39 ends

2396

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3990
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 11:59
15799.004.000
38600 Cedar Blvd
SG-16
Sample Matrix: Air
Lab Sample ID: 2208230-006A
SDG:

Page 23 of 39 ends

2397

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 8264
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 12:42
15799.004.000
38600 Cedar Blvd
SG-19
Sample Matrix: Air
Lab Sample ID: 2208230-007A
SDG:

Oxygen D1946 5.90 0.062 0.30 0.14 J 09/02/22 14:21 BA 468853 NOTE: Low Oxygen likely due to high microbial activity (high concentration of non-target gases).

Page 24 of 39 ends

2398

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 8264
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 12:42
15799.004.000
38600 Cedar Blvd
SG-19
Sample Matrix: Air
Lab Sample ID: 2208230-007A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Vinyl Acetate ETO15 30.00 23 53 ND ND 09/02/22 8:39 BA 468818 Carbon Tetrachloride ETO15 30.00 33 94 ND ND 09/02/22 8:39 BA 468818 1,1,1-Trichloroethane ETO15 30.00 24 82 ND ND 09/02/22 8:39 BA 468818 2-Butanone (MEK) ETO15 30.00 12 44 1700 576.27 09/02/22 8:39 BA 468818 Ethyl Acetate ETO15 30.00 14 54 ND ND 09/02/22 8:39 BA 468818 Tetrahydrofuran ETO15 30.00 13 44 ND ND 09/02/22 8:39 BA 468818 Benzene ETO15 30.00 13 48 ND ND 09/02/22 8:39 BA 468818 TAME ETO15 30.00 20 63 ND ND 09/02/22 8:39 BA 468818
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 09/02/22 8:39 BA 468818 Trichloroethylene ETO15 30.00 24 81 2900 540.04 09/02/22 8:39 BA 468818 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 09/02/22 8:39 BA 468818 Bromodichloromethane ETO15 30.00 22 100 ND ND 09/02/22 8:39 BA 468818 1,4-Dioxane ETO15 30.00 54 110 ND ND 09/02/22 8:39 BA 468818 trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 09/02/22 8:39 BA 468818 Toluene ETO15 30.00 23 57 ND ND 09/02/22 8:39 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 09/02/22 8:39 BA 468818 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 09/02/22 8:39 BA 468818 Tetrachloroethylene ETO15 30.00 44 100 5200 766.96 09/02/22 8:39 BA 468818 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 09/02/22 8:39 BA 468818 Dibromochloromethane ETO15 30.00 33 130 ND ND 09/02/22 8:39 BA 468818 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 09/02/22 8:39 BA 468818 2-Hexanone ETO15 30.00 20 62 ND ND 09/02/22 8:39 BA 468818 Ethyl Benzene ETO15 30.00 19 65 ND ND 09/02/22 8:39 BA 468818 Chlorobenzene ETO15 30.00 18 69 ND ND 09/02/22 8:39 BA 468818 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/02/22 8:39 BA 468818 m,p-Xylene ETO15 30.00 29 65 ND ND 09/02/22 8:39 BA 468818 o-Xylene ETO15 30.00 9.1 65 ND ND 09/02/22 8:39 BA 468818 Styrene ETO15 30.00 14 64 ND ND 09/02/22 8:39 BA 468818 Bromoform ETO15 30.00 39 160 ND ND 09/02/22 8:39 BA 468818 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/02/22 8:39 BA 468818 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 09/02/22 8:39 BA 468818 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 09/02/22 8:39 BA 468818 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 09/02/22 8:39 BA 468818 Total Page Count: 39
Packet Page

Page 25 of 39 ends

2399

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: 8264
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 12:42
15799.004.000
38600 Cedar Blvd
SG-19
Sample Matrix: Air
Lab Sample ID: 2208230-007A
SDG:

Page 26 of 39 ends

2400

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.8
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12194
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 12:52
15799.004.000
38600 Cedar Blvd
SG-18
Sample Matrix: Air
Lab Sample ID: 2208230-008A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 4.60 0.049 0.23 0.85 09/02/22 14:52 BA 468853 NOTE: Low Oxygen likely due to high microbial activity (high concentration of non-target gas).

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 30.00 47 74 ND ND 09/02/22 9:04 BA 468818 1,1-Difluoroethane ETO15 30.00 10 410 ND ND 09/02/22 9:04 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 30.00 42 100 ND ND 09/02/22 9:04 BA 468818 Chloromethane ETO15 30.00 61 120 ND ND 09/02/22 9:04 BA 468818 Vinyl Chloride ETO15 30.00 6.8 38 ND ND 09/02/22 9:04 BA 468818 1,3-Butadiene ETO15 30.00 10 33 ND ND 09/02/22 9:04 BA 468818 Bromomethane ETO15 30.00 20 58 ND ND 09/02/22 9:04 BA 468818 Chloroethane ETO15 30.00 24 40 ND ND 09/02/22 9:04 BA 468818 Trichlorofluoromethane ETO15 30.00 17 84 ND ND 09/02/22 9:04 BA 468818 1,1-Dichloroethene ETO15 30.00 25 60 ND ND 09/02/22 9:04 BA 468818 Freon 113 ETO15 30.00 31 110 ND ND 09/02/22 9:04 BA 468818 Carbon Disulfide ETO15 30.00 11 47 ND ND 09/02/22 9:04 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 30.00 38 370 ND ND 09/02/22 9:04 BA 468818 Methylene Chloride ETO15 30.00 21 310 ND ND 09/02/22 9:04 BA 468818 Acetone ETO15 30.00 12 360 ND ND 09/02/22 9:04 BA 468818 trans-1,2-Dichloroethene ETO15 30.00 14 59 ND ND 09/02/22 9:04 BA 468818 Hexane ETO15 30.00 14 53 ND ND 09/02/22 9:04 BA 468818
MTBE ETO15 30.00 13 54 ND ND 09/02/22 9:04 BA 468818
tert-Butanol ETO15 30.00 19 45 ND ND 09/02/22 9:04 BA 468818 Diisopropyl ether (DIPE) ETO15 30.00 22 63 ND ND 09/02/22 9:04 BA 468818 1,1-Dichloroethane ETO15 30.00 16 61 ND ND 09/02/22 9:04 BA 468818 ETBE ETO15 30.00 9.8 63 ND ND 09/02/22 9:04 BA 468818
cis-1,2-Dichloroethene ETO15 30.00 25 59 ND ND 09/02/22 9:04 BA 468818 Chloroform ETO15 30.00 29 73 ND ND 09/02/22 9:04 BA 468818 Total Page Count: 39
Packet Page

Page 27 of 39 ends

2401

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.8
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12194
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 12:52
15799.004.000
38600 Cedar Blvd
SG-18
Sample Matrix: Air
Lab Sample ID: 2208230-008A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Vinyl Acetate ETO15 30.00 23 53 ND ND 09/02/22 9:04 BA 468818 Carbon Tetrachloride ETO15 30.00 33 94 ND ND 09/02/22 9:04 BA 468818 1,1,1-Trichloroethane ETO15 30.00 24 82 270 49.45 09/02/22 9:04 BA 468818 2-Butanone (MEK) ETO15 30.00 12 44 ND ND 09/02/22 9:04 BA 468818 Ethyl Acetate ETO15 30.00 14 54 ND ND 09/02/22 9:04 BA 468818 Tetrahydrofuran ETO15 30.00 13 44 ND ND 09/02/22 9:04 BA 468818 Benzene ETO15 30.00 13 48 ND ND 09/02/22 9:04 BA 468818 TAME ETO15 30.00 20 63 ND ND 09/02/22 9:04 BA 468818
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 09/02/22 9:04 BA 468818 Trichloroethylene ETO15 30.00 24 81 ND ND 09/02/22 9:04 BA 468818 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 09/02/22 9:04 BA 468818 Bromodichloromethane ETO15 30.00 22 100 ND ND 09/02/22 9:04 BA 468818 1,4-Dioxane ETO15 30.00 54 110 ND ND 09/02/22 9:04 BA 468818 trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 09/02/22 9:04 BA 468818 Toluene ETO15 30.00 23 57 ND ND 09/02/22 9:04 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 09/02/22 9:04 BA 468818 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 09/02/22 9:04 BA 468818 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 09/02/22 9:04 BA 468818 Dibromochloromethane ETO15 30.00 33 130 ND ND 09/02/22 9:04 BA 468818 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 09/02/22 9:04 BA 468818 2-Hexanone ETO15 30.00 20 62 ND ND 09/02/22 9:04 BA 468818 Ethyl Benzene ETO15 30.00 19 65 ND ND 09/02/22 9:04 BA 468818 Chlorobenzene ETO15 30.00 18 69 ND ND 09/02/22 9:04 BA 468818 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/02/22 9:04 BA 468818 m,p-Xylene ETO15 30.00 29 65 ND ND 09/02/22 9:04 BA 468818 o-Xylene ETO15 30.00 9.1 65 ND ND 09/02/22 9:04 BA 468818 Styrene ETO15 30.00 14 64 ND ND 09/02/22 9:04 BA 468818 Bromoform ETO15 30.00 39 160 ND ND 09/02/22 9:04 BA 468818 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 09/02/22 9:04 BA 468818 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 09/02/22 9:04 BA 468818 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 09/02/22 9:04 BA 468818 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 09/02/22 9:04 BA 468818 1,4-Dichlorobenzene ETO15 30.00 22 90 ND ND 09/02/22 9:04 BA 468818 Total Page Count: 39
Packet Page

Page 28 of 39 ends

2402

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.8
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12194
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 12:52
15799.004.000
38600 Cedar Blvd
SG-18
Sample Matrix: Air
Lab Sample ID: 2208230-008A
SDG:

Page 29 of 39 ends

2403

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A7568
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 13:45
15799.004.000
38600 Cedar Blvd
SG-10
Sample Matrix: Air
Lab Sample ID: 2208230-009A
SDG:

Prep Batch ID: 1144606
Prep Batch Date/Time: 9/2/22 10:00:00AM
Prep Analyst: BALI
Prep Method: FG-P
Parameters: Q
Results
%
PQL
%
MDL
%
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Oxygen D1946 4.40 0.046 0.22 15 09/02/22 15:28 BA 468853 Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 2.00 3.1 5.0 ND ND 09/02/22 10:47 BA 468818 1,1-Difluoroethane ETO15 2.00 0.69 27 ND ND 09/02/22 10:47 BA 468818 1,2-Dichlorotetrafluoroethane ETO15 2.00 2.8 7.0 ND ND 09/02/22 10:47 BA 468818 Chloromethane ETO15 2.00 4.1 8.3 ND ND 09/02/22 10:47 BA 468818 Vinyl Chloride ETO15 2.00 0.45 2.6 ND ND 09/02/22 10:47 BA 468818 1,3-Butadiene ETO15 2.00 0.68 2.2 ND ND 09/02/22 10:47 BA 468818 Bromomethane ETO15 2.00 1.3 3.9 ND ND 09/02/22 10:47 BA 468818 Chloroethane ETO15 2.00 1.6 2.6 ND ND 09/02/22 10:47 BA 468818 Trichlorofluoromethane ETO15 2.00 1.1 5.6 ND ND 09/02/22 10:47 BA 468818 1,1-Dichloroethene ETO15 2.00 1.7 4.0 ND ND 09/02/22 10:47 BA 468818 Freon 113 ETO15 2.00 2.0 7.7 ND ND 09/02/22 10:47 BA 468818 Carbon Disulfide ETO15 2.00 0.75 3.1 23 7.40 09/02/22 10:47 BA 468818 2-Propanol (Isopropyl Alcohol) ETO15 2.00 2.6 25 ND ND 09/02/22 10:47 BA 468818 Methylene Chloride ETO15 2.00 1.4 21 ND ND 09/02/22 10:47 BA 468818 Acetone ETO15 2.00 0.79 24 120 50.42 09/02/22 10:47 BA 468818 trans-1,2-Dichloroethene ETO15 2.00 0.95 4.0 ND ND 09/02/22 10:47 BA 468818 Hexane ETO15 2.00 0.93 3.5 ND ND 09/02/22 10:47 BA 468818 MTBE ETO15 2.00 0.89 3.6 ND ND 09/02/22 10:47 BA 468818 tert-Butanol ETO15 2.00 1.2 3.0 16 5.28 09/02/22 10:47 BA 468818 Diisopropyl ether (DIPE) ETO15 2.00 1.5 4.2 ND ND 09/02/22 10:47 BA 468818 1,1-Dichloroethane ETO15 2.00 1.1 4.1 ND ND 09/02/22 10:47 BA 468818 ETBE ETO15 2.00 0.65 4.2 ND ND 09/02/22 10:47 BA 468818 cis-1,2-Dichloroethene ETO15 2.00 1.7 4.0 ND ND 09/02/22 10:47 BA 468818 Chloroform ETO15 2.00 1.9 4.9 ND ND 09/02/22 10:47 BA 468818 Vinyl Acetate ETO15 2.00 1.5 3.5 ND ND 09/02/22 10:47 BA 468818 Total Page Count: 39
Packet Page

Page 30 of 39 ends

2404

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A7568
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 13:45
15799.004.000
38600 Cedar Blvd
SG-10
Sample Matrix: Air
Lab Sample ID: 2208230-009A
SDG:

Prep Batch ID: 1144571
Prep Batch Date/Time: 9/1/22 4:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Carbon Tetrachloride ETO15 2.00 2.2 6.3 7.6 1.21 09/02/22 10:47 BA 468818 1,1,1-Trichloroethane ETO15 2.00 1.6 5.5 22 4.03 09/02/22 10:47 BA 468818 2-Butanone (MEK) ETO15 2.00 0.78 3.0 14 4.75 09/02/22 10:47 BA 468818 Ethyl Acetate ETO15 2.00 0.95 3.6 ND ND 09/02/22 10:47 BA 468818 Tetrahydrofuran ETO15 2.00 0.90 3.0 ND ND 09/02/22 10:47 BA 468818 Benzene ETO15 2.00 0.87 3.2 5.0 1.57 09/02/22 10:47 BA 468818 TAME ETO15 2.00 1.3 4.2 ND ND 09/02/22 10:47 BA 468818
1,2-Dichloroethane (EDC) ETO15 2.00 0.84 4.1 ND ND 09/02/22 10:47 BA 468818 Trichloroethylene ETO15 2.00 1.6 5.4 140 26.07 09/02/22 10:47 BA 468818 1,2-Dichloropropane ETO15 2.00 1.5 4.6 ND ND 09/02/22 10:47 BA 468818 Bromodichloromethane ETO15 2.00 1.5 6.7 ND ND 09/02/22 10:47 BA 468818 1,4-Dioxane ETO15 2.00 3.6 7.2 ND ND 09/02/22 10:47 BA 468818 trans-1,3-Dichloropropene ETO15 2.00 2.1 4.5 ND ND 09/02/22 10:47 BA 468818 Toluene ETO15 2.00 1.5 3.8 12 3.18 09/02/22 10:47 BA 468818 4-Methyl-2-Pentanone (MIBK) ETO15 2.00 1.5 4.1 ND ND 09/02/22 10:47 BA 468818 cis-1,3-Dichloropropene ETO15 2.00 0.84 4.5 ND ND 09/02/22 10:47 BA 468818 Tetrachloroethylene ETO15 2.00 2.9 6.8 410 60.47 09/02/22 10:47 BA 468818 1,1,2-Trichloroethane ETO15 2.00 1.2 5.5 6.1 1.12 09/02/22 10:47 BA 468818 Dibromochloromethane ETO15 2.00 2.2 8.5 ND ND 09/02/22 10:47 BA 468818 1,2-Dibromoethane (EDB) ETO15 2.00 1.5 7.7 ND ND 09/02/22 10:47 BA 468818 2-Hexanone ETO15 2.00 1.3 4.1 ND ND 09/02/22 10:47 BA 468818 Ethyl Benzene ETO15 2.00 1.3 4.3 ND ND 09/02/22 10:47 BA 468818 Chlorobenzene ETO15 2.00 1.2 4.6 ND ND 09/02/22 10:47 BA 468818 1,1,1,2-Tetrachloroethane ETO15 2.00 1.7 6.9 ND ND 09/02/22 10:47 BA 468818 m,p-Xylene ETO15 2.00 2.0 4.3 ND ND 09/02/22 10:47 BA 468818 o-Xylene ETO15 2.00 0.61 4.3 ND ND 09/02/22 10:47 BA 468818 Styrene ETO15 2.00 0.93 4.3 ND ND 09/02/22 10:47 BA 468818 Bromoform ETO15 2.00 2.6 10 ND ND 09/02/22 10:47 BA 468818 1,1,2,2-Tetrachloroethane ETO15 2.00 1.6 6.9 ND ND 09/02/22 10:47 BA 468818 4-Ethyl Toluene ETO15 2.00 1.1 4.9 ND ND 09/02/22 10:47 BA 468818 1,3,5-Trimethylbenzene ETO15 2.00 0.60 4.9 ND ND 09/02/22 10:47 BA 468818 1,2,4-Trimethylbenzene ETO15 2.00 1.2 4.9 ND ND 09/02/22 10:47 BA 468818 1,4-Dichlorobenzene ETO15 2.00 1.5 6.0 ND ND 09/02/22 10:47 BA 468818 Total Page Count: 39
Packet Page

Page 31 of 39 ends

2405

SAMPLE RESULTS
Report prepared for:

Date Reported: 09/02/22
Date/Time Received: 08/26/22, 2:48 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.7
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A7568
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
08/26/22 / 13:45
15799.004.000
38600 Cedar Blvd
SG-10
Sample Matrix: Air
Lab Sample ID: 2208230-009A
SDG:

Page 32 of 39 ends

2406

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.3
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N1433
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 13:00
15799.004.000
Cedar Boulevard
SG-1 @ 6'
Sample Matrix: Air
Lab Sample ID: 2207125-001A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 10.00 16 25 ND ND 07/18/22 16:31 BP 467655 1,1-Difluoroethane ETO15 10.00 3.5 140 ND ND 07/18/22 16:31 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 10.00 14 35 ND ND 07/18/22 16:31 BP 467655 Chloromethane ETO15 10.00 20 41 ND ND 07/18/22 16:31 BP 467655 Vinyl Chloride ETO15 10.00 2.3 13 ND ND 07/18/22 16:31 BP 467655 1,3-Butadiene ETO15 10.00 3.4 11 ND ND 07/18/22 16:31 BP 467655 Bromomethane ETO15 10.00 6.6 19 ND ND 07/18/22 16:31 BP 467655 Chloroethane ETO15 10.00 8.1 13 ND ND 07/18/22 16:31 BP 467655 Trichlorofluoromethane ETO15 10.00 5.6 28 ND ND 07/18/22 16:31 BP 467655 1,1-Dichloroethene ETO15 10.00 8.3 20 ND ND 07/18/22 16:31 BP 467655 Freon 113 ETO15 10.00 10 38 ND ND 07/18/22 16:31 BP 467655 Carbon Disulfide ETO15 10.00 3.7 16 ND ND 07/18/22 16:31 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 10.00 13 120 ND ND 07/18/22 16:31 BP 467655 Methylene Chloride ETO15 10.00 7.0 100 ND ND 07/18/22 16:31 BP 467655 Acetone ETO15 10.00 4.0 120 ND ND 07/18/22 16:31 BP 467655 trans-1,2-Dichloroethene ETO15 10.00 4.8 20 ND ND 07/18/22 16:31 BP 467655 Hexane ETO15 10.00 4.6 18 ND ND 07/18/22 16:31 BP 467655 MTBE ETO15 10.00 4.4 18 ND ND 07/18/22 16:31 BP 467655
tert-Butanol ETO15 10.00 6.2 15 ND ND 07/18/22 16:31 BP 467655 Diisopropyl ether (DIPE) ETO15 10.00 7.4 21 ND ND 07/18/22 16:31 BP 467655 1,1-Dichloroethane ETO15 10.00 5.4 20 ND ND 07/18/22 16:31 BP 467655 ETBE ETO15 10.00 3.3 21 ND ND 07/18/22 16:31 BP 467655
cis-1,2-Dichloroethene ETO15 10.00 8.3 20 ND ND 07/18/22 16:31 BP 467655 Chloroform ETO15 10.00 9.7 24 ND ND 07/18/22 16:31 BP 467655 Vinyl Acetate ETO15 10.00 7.6 18 ND ND 07/18/22 16:31 BP 467655 Carbon Tetrachloride ETO15 10.00 11 31 ND ND 07/18/22 16:31 BP 467655 1,1,1-Trichloroethane ETO15 10.00 7.9 27 260 47.62 07/18/22 16:31 BP 467655 2-Butanone (MEK) ETO15 10.00 3.9 15 ND ND 07/18/22 16:31 BP 467655 Ethyl Acetate ETO15 10.00 4.8 18 ND ND 07/18/22 16:31 BP 467655 Tetrahydrofuran ETO15 10.00 4.5 15 ND ND 07/18/22 16:31 BP 467655 Benzene ETO15 10.00 4.4 16 ND ND 07/18/22 16:31 BP 467655 TAME ETO15 10.00 6.7 21 ND ND 07/18/22 16:31 BP 467655
1,2-Dichloroethane (EDC) ETO15 10.00 4.2 20 ND ND 07/18/22 16:31 BP 467655 Trichloroethylene ETO15 10.00 8.1 27 ND ND 07/18/22 16:31 BP 467655 1,2-Dichloropropane ETO15 10.00 7.6 23 ND ND 07/18/22 16:31 BP 467655 Bromodichloromethane ETO15 10.00 7.4 34 ND ND 07/18/22 16:31 BP 467655 1,4-Dioxane ETO15 10.00 18 36 ND ND 07/18/22 16:31 BP 467655 Total Page Count: 46 Page 6 of 46
Packet Page 2407

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.3
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N1433
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 13:00
15799.004.000
Cedar Boulevard
SG-1 @ 6'
Sample Matrix: Air
Lab Sample ID: 2207125-001A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 10.00 11 23 ND ND 07/18/22 16:31 BP 467655 Toluene ETO15 10.00 7.5 19 ND ND 07/18/22 16:31 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 10.00 7.5 21 ND ND 07/18/22 16:31 BP 467655 cis-1,3-Dichloropropene ETO15 10.00 4.2 23 ND ND 07/18/22 16:31 BP 467655 Tetrachloroethylene ETO15 10.00 15 34 1400 206.49 07/18/22 16:31 BP 467655 1,1,2-Trichloroethane ETO15 10.00 5.8 27 ND ND 07/18/22 16:31 BP 467655 Dibromochloromethane ETO15 10.00 11 43 ND ND 07/18/22 16:31 BP 467655 1,2-Dibromoethane (EDB) ETO15 10.00 7.4 38 ND ND 07/18/22 16:31 BP 467655 2-Hexanone ETO15 10.00 6.5 21 ND ND 07/18/22 16:31 BP 467655 Ethyl Benzene ETO15 10.00 6.3 22 ND ND 07/18/22 16:31 BP 467655 Chlorobenzene ETO15 10.00 6.0 23 ND ND 07/18/22 16:31 BP 467655 1,1,1,2-Tetrachloroethane ETO15 10.00 8.4 34 ND ND 07/18/22 16:31 BP 467655 m,p-Xylene ETO15 10.00 9.8 22 ND ND 07/18/22 16:31 BP 467655 o-Xylene ETO15 10.00 3.0 22 ND ND 07/18/22 16:31 BP 467655 Styrene ETO15 10.00 4.6 21 ND ND 07/18/22 16:31 BP 467655 Bromoform ETO15 10.00 13 52 ND ND 07/18/22 16:31 BP 467655 1,1,2,2-Tetrachloroethane ETO15 10.00 8.2 34 ND ND 07/18/22 16:31 BP 467655 4-Ethyl Toluene ETO15 10.00 5.5 25 ND ND 07/18/22 16:31 BP 467655 1,3,5-Trimethylbenzene ETO15 10.00 3.0 25 ND ND 07/18/22 16:31 BP 467655 1,2,4-Trimethylbenzene ETO15 10.00 6.0 25 ND ND 07/18/22 16:31 BP 467655 1,4-Dichlorobenzene ETO15 10.00 7.5 30 ND ND 07/18/22 16:31 BP 467655 1,3-Dichlorobenzene ETO15 10.00 13 30 ND ND 07/18/22 16:31 BP 467655 1,2-Dichlorobenzene ETO15 10.00 11 30 ND ND 07/18/22 16:31 BP 467655 Hexachlorobutadiene ETO15 10.00 19 53 ND ND 07/18/22 16:31 BP 467655 1,2,4-Trichlorobenzene ETO15 10.00 22 37 ND ND 07/18/22 16:31 BP 467655 Naphthalene ETO15 10.00 13 26 ND ND 07/18/22 16:31 BP 467655 (S) 4-Bromofluorobenzene ETO15 10.00 50 150 89 % 07/18/22 16:31 BP 467655 Total Page Count: 46 Page 7 of 46
Packet Page 2408

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 14.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3561
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 13:22
15799.004.000
Cedar Boulevard
SG-1 @ 10'
Sample Matrix: Air
Lab Sample ID: 2207125-002A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 10.00 16 25 ND ND 07/18/22 16:56 BP 467655 1,1-Difluoroethane ETO15 10.00 3.5 140 ND ND 07/18/22 16:56 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 10.00 14 35 ND ND 07/18/22 16:56 BP 467655 Chloromethane ETO15 10.00 20 41 ND ND 07/18/22 16:56 BP 467655 Vinyl Chloride ETO15 10.00 2.3 13 ND ND 07/18/22 16:56 BP 467655 1,3-Butadiene ETO15 10.00 3.4 11 ND ND 07/18/22 16:56 BP 467655 Bromomethane ETO15 10.00 6.6 19 ND ND 07/18/22 16:56 BP 467655 Chloroethane ETO15 10.00 8.1 13 ND ND 07/18/22 16:56 BP 467655 Trichlorofluoromethane ETO15 10.00 5.6 28 ND ND 07/18/22 16:56 BP 467655 1,1-Dichloroethene ETO15 10.00 8.3 20 ND ND 07/18/22 16:56 BP 467655 Freon 113 ETO15 10.00 10 38 ND ND 07/18/22 16:56 BP 467655 Carbon Disulfide ETO15 10.00 3.7 16 ND ND 07/18/22 16:56 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 10.00 13 120 ND ND 07/18/22 16:56 BP 467655 Methylene Chloride ETO15 10.00 7.0 100 ND ND 07/18/22 16:56 BP 467655 Acetone ETO15 10.00 4.0 120 ND ND 07/18/22 16:56 BP 467655 trans-1,2-Dichloroethene ETO15 10.00 4.8 20 ND ND 07/18/22 16:56 BP 467655 Hexane ETO15 10.00 4.6 18 ND ND 07/18/22 16:56 BP 467655 MTBE ETO15 10.00 4.4 18 ND ND 07/18/22 16:56 BP 467655
tert-Butanol ETO15 10.00 6.2 15 ND ND 07/18/22 16:56 BP 467655 Diisopropyl ether (DIPE) ETO15 10.00 7.4 21 ND ND 07/18/22 16:56 BP 467655 1,1-Dichloroethane ETO15 10.00 5.4 20 ND ND 07/18/22 16:56 BP 467655 ETBE ETO15 10.00 3.3 21 ND ND 07/18/22 16:56 BP 467655
cis-1,2-Dichloroethene ETO15 10.00 8.3 20 ND ND 07/18/22 16:56 BP 467655 Chloroform ETO15 10.00 9.7 24 ND ND 07/18/22 16:56 BP 467655 Vinyl Acetate ETO15 10.00 7.6 18 ND ND 07/18/22 16:56 BP 467655 Carbon Tetrachloride ETO15 10.00 11 31 ND ND 07/18/22 16:56 BP 467655 1,1,1-Trichloroethane ETO15 10.00 7.9 27 350 64.10 07/18/22 16:56 BP 467655 2-Butanone (MEK) ETO15 10.00 3.9 15 ND ND 07/18/22 16:56 BP 467655 Ethyl Acetate ETO15 10.00 4.8 18 ND ND 07/18/22 16:56 BP 467655 Tetrahydrofuran ETO15 10.00 4.5 15 ND ND 07/18/22 16:56 BP 467655 Benzene ETO15 10.00 4.4 16 ND ND 07/18/22 16:56 BP 467655 TAME ETO15 10.00 6.7 21 ND ND 07/18/22 16:56 BP 467655
1,2-Dichloroethane (EDC) ETO15 10.00 4.2 20 ND ND 07/18/22 16:56 BP 467655 Trichloroethylene ETO15 10.00 8.1 27 ND ND 07/18/22 16:56 BP 467655 1,2-Dichloropropane ETO15 10.00 7.6 23 ND ND 07/18/22 16:56 BP 467655 Bromodichloromethane ETO15 10.00 7.4 34 ND ND 07/18/22 16:56 BP 467655 1,4-Dioxane ETO15 10.00 18 36 ND ND 07/18/22 16:56 BP 467655 Total Page Count: 46 Page 8 of 46
Packet Page 2409

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 14.2
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3561
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 13:22
15799.004.000
Cedar Boulevard
SG-1 @ 10'
Sample Matrix: Air
Lab Sample ID: 2207125-002A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 10.00 11 23 ND ND 07/18/22 16:56 BP 467655 Toluene ETO15 10.00 7.5 19 ND ND 07/18/22 16:56 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 10.00 7.5 21 ND ND 07/18/22 16:56 BP 467655 cis-1,3-Dichloropropene ETO15 10.00 4.2 23 ND ND 07/18/22 16:56 BP 467655 Tetrachloroethylene ETO15 10.00 15 34 1800 265.49 07/18/22 16:56 BP 467655 1,1,2-Trichloroethane ETO15 10.00 5.8 27 ND ND 07/18/22 16:56 BP 467655 Dibromochloromethane ETO15 10.00 11 43 ND ND 07/18/22 16:56 BP 467655 1,2-Dibromoethane (EDB) ETO15 10.00 7.4 38 ND ND 07/18/22 16:56 BP 467655 2-Hexanone ETO15 10.00 6.5 21 ND ND 07/18/22 16:56 BP 467655 Ethyl Benzene ETO15 10.00 6.3 22 ND ND 07/18/22 16:56 BP 467655 Chlorobenzene ETO15 10.00 6.0 23 ND ND 07/18/22 16:56 BP 467655 1,1,1,2-Tetrachloroethane ETO15 10.00 8.4 34 ND ND 07/18/22 16:56 BP 467655 m,p-Xylene ETO15 10.00 9.8 22 ND ND 07/18/22 16:56 BP 467655 o-Xylene ETO15 10.00 3.0 22 ND ND 07/18/22 16:56 BP 467655 Styrene ETO15 10.00 4.6 21 ND ND 07/18/22 16:56 BP 467655 Bromoform ETO15 10.00 13 52 ND ND 07/18/22 16:56 BP 467655 1,1,2,2-Tetrachloroethane ETO15 10.00 8.2 34 ND ND 07/18/22 16:56 BP 467655 4-Ethyl Toluene ETO15 10.00 5.5 25 ND ND 07/18/22 16:56 BP 467655 1,3,5-Trimethylbenzene ETO15 10.00 3.0 25 ND ND 07/18/22 16:56 BP 467655 1,2,4-Trimethylbenzene ETO15 10.00 6.0 25 ND ND 07/18/22 16:56 BP 467655 1,4-Dichlorobenzene ETO15 10.00 7.5 30 ND ND 07/18/22 16:56 BP 467655 1,3-Dichlorobenzene ETO15 10.00 13 30 ND ND 07/18/22 16:56 BP 467655 1,2-Dichlorobenzene ETO15 10.00 11 30 ND ND 07/18/22 16:56 BP 467655 Hexachlorobutadiene ETO15 10.00 19 53 ND ND 07/18/22 16:56 BP 467655 1,2,4-Trichlorobenzene ETO15 10.00 22 37 ND ND 07/18/22 16:56 BP 467655 Naphthalene ETO15 10.00 13 26 ND ND 07/18/22 16:56 BP 467655 (S) 4-Bromofluorobenzene ETO15 10.00 50 150 89 % 07/18/22 16:56 BP 467655 Total Page Count: 46 Page 9 of 46
Packet Page 2410

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 14.3
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12215
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 14:26
15799.004.000
Cedar Boulevard
SG-2 @ 6'
Sample Matrix: Air
Lab Sample ID: 2207125-003A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 30.00 47 74 ND ND 07/18/22 14:50 BP 467655 1,1-Difluoroethane ETO15 30.00 10 410 ND ND 07/18/22 14:50 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 30.00 42 100 ND ND 07/18/22 14:50 BP 467655 Chloromethane ETO15 30.00 61 120 ND ND 07/18/22 14:50 BP 467655 Vinyl Chloride ETO15 30.00 6.8 38 ND ND 07/18/22 14:50 BP 467655 1,3-Butadiene ETO15 30.00 10 33 ND ND 07/18/22 14:50 BP 467655 Bromomethane ETO15 30.00 20 58 ND ND 07/18/22 14:50 BP 467655 Chloroethane ETO15 30.00 24 40 ND ND 07/18/22 14:50 BP 467655 Trichlorofluoromethane ETO15 30.00 17 84 ND ND 07/18/22 14:50 BP 467655 1,1-Dichloroethene ETO15 30.00 25 60 ND ND 07/18/22 14:50 BP 467655 Freon 113 ETO15 30.00 31 110 ND ND 07/18/22 14:50 BP 467655 Carbon Disulfide ETO15 30.00 11 47 ND ND 07/18/22 14:50 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 30.00 38 370 ND ND 07/18/22 14:50 BP 467655 Methylene Chloride ETO15 30.00 21 310 ND ND 07/18/22 14:50 BP 467655 Acetone ETO15 30.00 12 360 ND ND 07/18/22 14:50 BP 467655 trans-1,2-Dichloroethene ETO15 30.00 14 59 ND ND 07/18/22 14:50 BP 467655 Hexane ETO15 30.00 14 53 ND ND 07/18/22 14:50 BP 467655 MTBE ETO15 30.00 13 54 ND ND 07/18/22 14:50 BP 467655
tert-Butanol ETO15 30.00 19 45 ND ND 07/18/22 14:50 BP 467655 Diisopropyl ether (DIPE) ETO15 30.00 22 63 ND ND 07/18/22 14:50 BP 467655 1,1-Dichloroethane ETO15 30.00 16 61 1300 320.99 07/18/22 14:50 BP 467655 ETBE ETO15 30.00 9.8 63 ND ND 07/18/22 14:50 BP 467655
cis-1,2-Dichloroethene ETO15 30.00 25 59 2900 732.32 07/18/22 14:50 BP 467655 Chloroform ETO15 30.00 29 73 ND ND 07/18/22 14:50 BP 467655 Vinyl Acetate ETO15 30.00 23 53 ND ND 07/18/22 14:50 BP 467655 Carbon Tetrachloride ETO15 30.00 33 94 ND ND 07/18/22 14:50 BP 467655 1,1,1-Trichloroethane ETO15 30.00 24 82 11000 2,014.65 E 07/18/22 14:50 BP 467655 2-Butanone (MEK) ETO15 30.00 12 44 ND ND 07/18/22 14:50 BP 467655 Ethyl Acetate ETO15 30.00 14 54 ND ND 07/18/22 14:50 BP 467655 Tetrahydrofuran ETO15 30.00 13 44 ND ND 07/18/22 14:50 BP 467655 Benzene ETO15 30.00 13 48 ND ND 07/18/22 14:50 BP 467655 TAME ETO15 30.00 20 63 ND ND 07/18/22 14:50 BP 467655
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 07/18/22 14:50 BP 467655 Trichloroethylene ETO15 30.00 24 81 1900 353.82 07/18/22 14:50 BP 467655 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 07/18/22 14:50 BP 467655 Bromodichloromethane ETO15 30.00 22 100 ND ND 07/18/22 14:50 BP 467655 1,4-Dioxane ETO15 30.00 54 110 ND ND 07/18/22 14:50 BP 467655 Total Page Count: 46 Page 10 of 46
Packet Page 2411

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 14.3
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12215
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 14:26
15799.004.000
Cedar Boulevard
SG-2 @ 6'
Sample Matrix: Air
Lab Sample ID: 2207125-003A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 07/18/22 14:50 BP 467655 Toluene ETO15 30.00 23 57 ND ND 07/18/22 14:50 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 07/18/22 14:50 BP 467655 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 07/18/22 14:50 BP 467655 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 07/18/22 14:50 BP 467655 Dibromochloromethane ETO15 30.00 33 130 ND ND 07/18/22 14:50 BP 467655 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 07/18/22 14:50 BP 467655 2-Hexanone ETO15 30.00 20 62 ND ND 07/18/22 14:50 BP 467655 Ethyl Benzene ETO15 30.00 19 65 ND ND 07/18/22 14:50 BP 467655 Chlorobenzene ETO15 30.00 18 69 ND ND 07/18/22 14:50 BP 467655 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 07/18/22 14:50 BP 467655 m,p-Xylene ETO15 30.00 29 65 ND ND 07/18/22 14:50 BP 467655 o-Xylene ETO15 30.00 9.1 65 ND ND 07/18/22 14:50 BP 467655 Styrene ETO15 30.00 14 64 ND ND 07/18/22 14:50 BP 467655 Bromoform ETO15 30.00 39 160 ND ND 07/18/22 14:50 BP 467655 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 07/18/22 14:50 BP 467655 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 07/18/22 14:50 BP 467655 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 07/18/22 14:50 BP 467655 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 07/18/22 14:50 BP 467655 1,4-Dichlorobenzene ETO15 30.00 22 90 ND ND 07/18/22 14:50 BP 467655 1,3-Dichlorobenzene ETO15 30.00 40 90 ND ND 07/18/22 14:50 BP 467655 1,2-Dichlorobenzene ETO15 30.00 32 90 ND ND 07/18/22 14:50 BP 467655 Hexachlorobutadiene ETO15 30.00 56 160 ND ND 07/18/22 14:50 BP 467655 1,2,4-Trichlorobenzene ETO15 30.00 65 110 ND ND 07/18/22 14:50 BP 467655 Naphthalene ETO15 30.00 38 79 ND ND 07/18/22 14:50 BP 467655 (S) 4-Bromofluorobenzene ETO15 30.00 50 150 89 % 07/18/22 14:50 BP 467655 Prep Batch ID: 1143417
Prep Batch Date/Time: 7/21/22 9:00:00AM
Prep Analyst: BALI
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Tetrachloroethylene ETO15 400.0 580 1400 63000 9,292.04 07/21/22 20:35 BA 467724 (S) 4-Bromofluorobenzene ETO15 400.0 50 150 91 % 07/21/22 20:35 BA 467724 Total Page Count: 46 Page 11 of 46
Packet Page 2412

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.6
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3579
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 12:56
15799.004.000
Cedar Boulevard
SG-3 @ 6'
Sample Matrix: Air
Lab Sample ID: 2207125-004A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 60.00 94 150 ND ND 07/18/22 17:21 BP 467655 1,1-Difluoroethane ETO15 60.00 21 810 ND ND 07/18/22 17:21 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 60.00 84 210 ND ND 07/18/22 17:21 BP 467655 Chloromethane ETO15 60.00 120 250 ND ND 07/18/22 17:21 BP 467655 Vinyl Chloride ETO15 60.00 14 77 ND ND 07/18/22 17:21 BP 467655 1,3-Butadiene ETO15 60.00 20 66 ND ND 07/18/22 17:21 BP 467655 Bromomethane ETO15 60.00 39 120 ND ND 07/18/22 17:21 BP 467655 Chloroethane ETO15 60.00 49 79 ND ND 07/18/22 17:21 BP 467655 Trichlorofluoromethane ETO15 60.00 33 170 ND ND 07/18/22 17:21 BP 467655 1,1-Dichloroethene ETO15 60.00 50 120 ND ND 07/18/22 17:21 BP 467655 Freon 113 ETO15 60.00 61 230 ND ND 07/18/22 17:21 BP 467655 Carbon Disulfide ETO15 60.00 22 93 ND ND 07/18/22 17:21 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 60.00 77 740 ND ND 07/18/22 17:21 BP 467655 Methylene Chloride ETO15 60.00 42 620 ND ND 07/18/22 17:21 BP 467655 Acetone ETO15 60.00 24 710 ND ND 07/18/22 17:21 BP 467655 trans-1,2-Dichloroethene ETO15 60.00 29 120 ND ND 07/18/22 17:21 BP 467655 Hexane ETO15 60.00 28 110 ND ND 07/18/22 17:21 BP 467655 MTBE ETO15 60.00 27 110 ND ND 07/18/22 17:21 BP 467655
tert-Butanol ETO15 60.00 37 91 ND ND 07/18/22 17:21 BP 467655 Diisopropyl ether (DIPE) ETO15 60.00 44 130 ND ND 07/18/22 17:21 BP 467655 1,1-Dichloroethane ETO15 60.00 33 120 ND ND 07/18/22 17:21 BP 467655 ETBE ETO15 60.00 20 130 ND ND 07/18/22 17:21 BP 467655
cis-1,2-Dichloroethene ETO15 60.00 50 120 ND ND 07/18/22 17:21 BP 467655 Chloroform ETO15 60.00 58 150 ND ND 07/18/22 17:21 BP 467655 Vinyl Acetate ETO15 60.00 45 110 ND ND 07/18/22 17:21 BP 467655 Carbon Tetrachloride ETO15 60.00 66 190 ND ND 07/18/22 17:21 BP 467655 1,1,1-Trichloroethane ETO15 60.00 48 160 1400 256.41 07/18/22 17:21 BP 467655 2-Butanone (MEK) ETO15 60.00 23 89 ND ND 07/18/22 17:21 BP 467655 Ethyl Acetate ETO15 60.00 29 110 ND ND 07/18/22 17:21 BP 467655 Tetrahydrofuran ETO15 60.00 27 89 ND ND 07/18/22 17:21 BP 467655 Benzene ETO15 60.00 26 96 ND ND 07/18/22 17:21 BP 467655 TAME ETO15 60.00 40 130 ND ND 07/18/22 17:21 BP 467655
1,2-Dichloroethane (EDC) ETO15 60.00 25 120 ND ND 07/18/22 17:21 BP 467655 Trichloroethylene ETO15 60.00 48 160 300 55.87 07/18/22 17:21 BP 467655 1,2-Dichloropropane ETO15 60.00 46 140 ND ND 07/18/22 17:21 BP 467655 Bromodichloromethane ETO15 60.00 45 200 ND ND 07/18/22 17:21 BP 467655 1,4-Dioxane ETO15 60.00 110 220 ND ND 07/18/22 17:21 BP 467655 Total Page Count: 46 Page 12 of 46
Packet Page 2413

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.6
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3579
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 12:56
15799.004.000
Cedar Boulevard
SG-3 @ 6'
Sample Matrix: Air
Lab Sample ID: 2207125-004A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 60.00 64 140 ND ND 07/18/22 17:21 BP 467655 Toluene ETO15 60.00 45 110 ND ND 07/18/22 17:21 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 60.00 45 120 ND ND 07/18/22 17:21 BP 467655 cis-1,3-Dichloropropene ETO15 60.00 25 140 ND ND 07/18/22 17:21 BP 467655 Tetrachloroethylene ETO15 60.00 87 200 13000 1,917.40 07/18/22 17:21 BP 467655 1,1,2-Trichloroethane ETO15 60.00 35 160 ND ND 07/18/22 17:21 BP 467655 Dibromochloromethane ETO15 60.00 67 260 ND ND 07/18/22 17:21 BP 467655 1,2-Dibromoethane (EDB) ETO15 60.00 44 230 ND ND 07/18/22 17:21 BP 467655 2-Hexanone ETO15 60.00 39 120 ND ND 07/18/22 17:21 BP 467655 Ethyl Benzene ETO15 60.00 38 130 ND ND 07/18/22 17:21 BP 467655 Chlorobenzene ETO15 60.00 36 140 ND ND 07/18/22 17:21 BP 467655 1,1,1,2-Tetrachloroethane ETO15 60.00 50 210 ND ND 07/18/22 17:21 BP 467655 m,p-Xylene ETO15 60.00 59 130 ND ND 07/18/22 17:21 BP 467655 o-Xylene ETO15 60.00 18 130 ND ND 07/18/22 17:21 BP 467655 Styrene ETO15 60.00 28 130 ND ND 07/18/22 17:21 BP 467655 Bromoform ETO15 60.00 78 310 ND ND 07/18/22 17:21 BP 467655 1,1,2,2-Tetrachloroethane ETO15 60.00 49 210 ND ND 07/18/22 17:21 BP 467655 4-Ethyl Toluene ETO15 60.00 33 150 ND ND 07/18/22 17:21 BP 467655 1,3,5-Trimethylbenzene ETO15 60.00 18 150 ND ND 07/18/22 17:21 BP 467655 1,2,4-Trimethylbenzene ETO15 60.00 36 150 ND ND 07/18/22 17:21 BP 467655 1,4-Dichlorobenzene ETO15 60.00 45 180 ND ND 07/18/22 17:21 BP 467655 1,3-Dichlorobenzene ETO15 60.00 80 180 ND ND 07/18/22 17:21 BP 467655 1,2-Dichlorobenzene ETO15 60.00 64 180 ND ND 07/18/22 17:21 BP 467655 Hexachlorobutadiene ETO15 60.00 110 320 ND ND 07/18/22 17:21 BP 467655 1,2,4-Trichlorobenzene ETO15 60.00 130 220 ND ND 07/18/22 17:21 BP 467655 Naphthalene ETO15 60.00 76 160 ND ND 07/18/22 17:21 BP 467655 (S) 4-Bromofluorobenzene ETO15 60.00 50 150 88 % 07/18/22 17:21 BP 467655 Total Page Count: 46 Page 13 of 46
Packet Page 2414

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12175
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 17:04
15799.004.000
Cedar Boulevard
SG-3 @ 10'
Sample Matrix: Air
Lab Sample ID: 2207125-005A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 60.00 94 150 ND ND 07/18/22 17:46 BP 467655 1,1-Difluoroethane ETO15 60.00 21 810 ND ND 07/18/22 17:46 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 60.00 84 210 ND ND 07/18/22 17:46 BP 467655 Chloromethane ETO15 60.00 120 250 ND ND 07/18/22 17:46 BP 467655 Vinyl Chloride ETO15 60.00 14 77 ND ND 07/18/22 17:46 BP 467655 1,3-Butadiene ETO15 60.00 20 66 ND ND 07/18/22 17:46 BP 467655 Bromomethane ETO15 60.00 39 120 ND ND 07/18/22 17:46 BP 467655 Chloroethane ETO15 60.00 49 79 ND ND 07/18/22 17:46 BP 467655 Trichlorofluoromethane ETO15 60.00 33 170 ND ND 07/18/22 17:46 BP 467655 1,1-Dichloroethene ETO15 60.00 50 120 ND ND 07/18/22 17:46 BP 467655 Freon 113 ETO15 60.00 61 230 ND ND 07/18/22 17:46 BP 467655 Carbon Disulfide ETO15 60.00 22 93 ND ND 07/18/22 17:46 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 60.00 77 740 ND ND 07/18/22 17:46 BP 467655 Methylene Chloride ETO15 60.00 42 620 ND ND 07/18/22 17:46 BP 467655 Acetone ETO15 60.00 24 710 ND ND 07/18/22 17:46 BP 467655 trans-1,2-Dichloroethene ETO15 60.00 29 120 ND ND 07/18/22 17:46 BP 467655 Hexane ETO15 60.00 28 110 ND ND 07/18/22 17:46 BP 467655 MTBE ETO15 60.00 27 110 ND ND 07/18/22 17:46 BP 467655
tert-Butanol ETO15 60.00 37 91 ND ND 07/18/22 17:46 BP 467655 Diisopropyl ether (DIPE) ETO15 60.00 44 130 ND ND 07/18/22 17:46 BP 467655 1,1-Dichloroethane ETO15 60.00 33 120 ND ND 07/18/22 17:46 BP 467655 ETBE ETO15 60.00 20 130 ND ND 07/18/22 17:46 BP 467655
cis-1,2-Dichloroethene ETO15 60.00 50 120 ND ND 07/18/22 17:46 BP 467655 Chloroform ETO15 60.00 58 150 ND ND 07/18/22 17:46 BP 467655 Vinyl Acetate ETO15 60.00 45 110 ND ND 07/18/22 17:46 BP 467655 Carbon Tetrachloride ETO15 60.00 66 190 ND ND 07/18/22 17:46 BP 467655 1,1,1-Trichloroethane ETO15 60.00 48 160 1100 201.47 07/18/22 17:46 BP 467655 2-Butanone (MEK) ETO15 60.00 23 89 ND ND 07/18/22 17:46 BP 467655 Ethyl Acetate ETO15 60.00 29 110 ND ND 07/18/22 17:46 BP 467655 Tetrahydrofuran ETO15 60.00 27 89 ND ND 07/18/22 17:46 BP 467655 Benzene ETO15 60.00 26 96 ND ND 07/18/22 17:46 BP 467655 TAME ETO15 60.00 40 130 ND ND 07/18/22 17:46 BP 467655
1,2-Dichloroethane (EDC) ETO15 60.00 25 120 ND ND 07/18/22 17:46 BP 467655 Trichloroethylene ETO15 60.00 48 160 280 52.14 07/18/22 17:46 BP 467655 1,2-Dichloropropane ETO15 60.00 46 140 ND ND 07/18/22 17:46 BP 467655 Bromodichloromethane ETO15 60.00 45 200 ND ND 07/18/22 17:46 BP 467655 1,4-Dioxane ETO15 60.00 110 220 ND ND 07/18/22 17:46 BP 467655 Total Page Count: 46 Page 14 of 46
Packet Page 2415

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12175
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 17:04
15799.004.000
Cedar Boulevard
SG-3 @ 10'
Sample Matrix: Air
Lab Sample ID: 2207125-005A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 60.00 64 140 ND ND 07/18/22 17:46 BP 467655 Toluene ETO15 60.00 45 110 ND ND 07/18/22 17:46 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 60.00 45 120 ND ND 07/18/22 17:46 BP 467655 cis-1,3-Dichloropropene ETO15 60.00 25 140 ND ND 07/18/22 17:46 BP 467655 Tetrachloroethylene ETO15 60.00 87 200 9800 1,445.43 07/18/22 17:46 BP 467655 1,1,2-Trichloroethane ETO15 60.00 35 160 ND ND 07/18/22 17:46 BP 467655 Dibromochloromethane ETO15 60.00 67 260 ND ND 07/18/22 17:46 BP 467655 1,2-Dibromoethane (EDB) ETO15 60.00 44 230 ND ND 07/18/22 17:46 BP 467655 2-Hexanone ETO15 60.00 39 120 ND ND 07/18/22 17:46 BP 467655 Ethyl Benzene ETO15 60.00 38 130 ND ND 07/18/22 17:46 BP 467655 Chlorobenzene ETO15 60.00 36 140 ND ND 07/18/22 17:46 BP 467655 1,1,1,2-Tetrachloroethane ETO15 60.00 50 210 ND ND 07/18/22 17:46 BP 467655 m,p-Xylene ETO15 60.00 59 130 ND ND 07/18/22 17:46 BP 467655 o-Xylene ETO15 60.00 18 130 ND ND 07/18/22 17:46 BP 467655 Styrene ETO15 60.00 28 130 ND ND 07/18/22 17:46 BP 467655 Bromoform ETO15 60.00 78 310 ND ND 07/18/22 17:46 BP 467655 1,1,2,2-Tetrachloroethane ETO15 60.00 49 210 ND ND 07/18/22 17:46 BP 467655 4-Ethyl Toluene ETO15 60.00 33 150 ND ND 07/18/22 17:46 BP 467655 1,3,5-Trimethylbenzene ETO15 60.00 18 150 ND ND 07/18/22 17:46 BP 467655 1,2,4-Trimethylbenzene ETO15 60.00 36 150 ND ND 07/18/22 17:46 BP 467655 1,4-Dichlorobenzene ETO15 60.00 45 180 ND ND 07/18/22 17:46 BP 467655 1,3-Dichlorobenzene ETO15 60.00 80 180 ND ND 07/18/22 17:46 BP 467655 1,2-Dichlorobenzene ETO15 60.00 64 180 ND ND 07/18/22 17:46 BP 467655 Hexachlorobutadiene ETO15 60.00 110 320 ND ND 07/18/22 17:46 BP 467655 1,2,4-Trichlorobenzene ETO15 60.00 130 220 ND ND 07/18/22 17:46 BP 467655 Naphthalene ETO15 60.00 76 160 ND ND 07/18/22 17:46 BP 467655 (S) 4-Bromofluorobenzene ETO15 60.00 50 150 89 % 07/18/22 17:46 BP 467655 Total Page Count: 46 Page 15 of 46
Packet Page 2416

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 14.1
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3598
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 16:36
15799.004.000
Cedar Boulevard
SG-4 @ 6'
Sample Matrix: Air
Lab Sample ID: 2207125-006A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 60.00 94 150 ND ND 07/18/22 20:01 BP 467655 1,1-Difluoroethane ETO15 60.00 21 810 ND ND 07/18/22 20:01 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 60.00 84 210 ND ND 07/18/22 20:01 BP 467655 Chloromethane ETO15 60.00 120 250 ND ND 07/18/22 20:01 BP 467655 Vinyl Chloride ETO15 60.00 14 77 ND ND 07/18/22 20:01 BP 467655 1,3-Butadiene ETO15 60.00 20 66 ND ND 07/18/22 20:01 BP 467655 Bromomethane ETO15 60.00 39 120 ND ND 07/18/22 20:01 BP 467655 Chloroethane ETO15 60.00 49 79 ND ND 07/18/22 20:01 BP 467655 Trichlorofluoromethane ETO15 60.00 33 170 ND ND 07/18/22 20:01 BP 467655 1,1-Dichloroethene ETO15 60.00 50 120 ND ND 07/18/22 20:01 BP 467655 Freon 113 ETO15 60.00 61 230 ND ND 07/18/22 20:01 BP 467655 Carbon Disulfide ETO15 60.00 22 93 ND ND 07/18/22 20:01 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 60.00 77 740 ND ND 07/18/22 20:01 BP 467655 Methylene Chloride ETO15 60.00 42 620 ND ND 07/18/22 20:01 BP 467655 Acetone ETO15 60.00 24 710 ND ND 07/18/22 20:01 BP 467655 trans-1,2-Dichloroethene ETO15 60.00 29 120 ND ND 07/18/22 20:01 BP 467655 Hexane ETO15 60.00 28 110 ND ND 07/18/22 20:01 BP 467655 MTBE ETO15 60.00 27 110 ND ND 07/18/22 20:01 BP 467655
tert-Butanol ETO15 60.00 37 91 ND ND 07/18/22 20:01 BP 467655 Diisopropyl ether (DIPE) ETO15 60.00 44 130 ND ND 07/18/22 20:01 BP 467655 1,1-Dichloroethane ETO15 60.00 33 120 ND ND 07/18/22 20:01 BP 467655 ETBE ETO15 60.00 20 130 ND ND 07/18/22 20:01 BP 467655
cis-1,2-Dichloroethene ETO15 60.00 50 120 ND ND 07/18/22 20:01 BP 467655 Chloroform ETO15 60.00 58 150 ND ND 07/18/22 20:01 BP 467655 Vinyl Acetate ETO15 60.00 45 110 ND ND 07/18/22 20:01 BP 467655 Carbon Tetrachloride ETO15 60.00 66 190 ND ND 07/18/22 20:01 BP 467655 1,1,1-Trichloroethane ETO15 60.00 48 160 1900 347.99 07/18/22 20:01 BP 467655 2-Butanone (MEK) ETO15 60.00 23 89 ND ND 07/18/22 20:01 BP 467655 Ethyl Acetate ETO15 60.00 29 110 ND ND 07/18/22 20:01 BP 467655 Tetrahydrofuran ETO15 60.00 27 89 ND ND 07/18/22 20:01 BP 467655 Benzene ETO15 60.00 26 96 ND ND 07/18/22 20:01 BP 467655 TAME ETO15 60.00 40 130 ND ND 07/18/22 20:01 BP 467655
1,2-Dichloroethane (EDC) ETO15 60.00 25 120 ND ND 07/18/22 20:01 BP 467655 Trichloroethylene ETO15 60.00 48 160 ND ND 07/18/22 20:01 BP 467655 1,2-Dichloropropane ETO15 60.00 46 140 ND ND 07/18/22 20:01 BP 467655 Bromodichloromethane ETO15 60.00 45 200 ND ND 07/18/22 20:01 BP 467655 1,4-Dioxane ETO15 60.00 110 220 ND ND 07/18/22 20:01 BP 467655 Total Page Count: 46 Page 16 of 46
Packet Page 2417

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 14.1
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3598
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 16:36
15799.004.000
Cedar Boulevard
SG-4 @ 6'
Sample Matrix: Air
Lab Sample ID: 2207125-006A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 60.00 64 140 ND ND 07/18/22 20:01 BP 467655 Toluene ETO15 60.00 45 110 ND ND 07/18/22 20:01 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 60.00 45 120 ND ND 07/18/22 20:01 BP 467655 cis-1,3-Dichloropropene ETO15 60.00 25 140 ND ND 07/18/22 20:01 BP 467655 Tetrachloroethylene ETO15 60.00 87 200 17000 2,507.37 07/18/22 20:01 BP 467655 1,1,2-Trichloroethane ETO15 60.00 35 160 ND ND 07/18/22 20:01 BP 467655 Dibromochloromethane ETO15 60.00 67 260 ND ND 07/18/22 20:01 BP 467655 1,2-Dibromoethane (EDB) ETO15 60.00 44 230 ND ND 07/18/22 20:01 BP 467655 2-Hexanone ETO15 60.00 39 120 ND ND 07/18/22 20:01 BP 467655 Ethyl Benzene ETO15 60.00 38 130 ND ND 07/18/22 20:01 BP 467655 Chlorobenzene ETO15 60.00 36 140 ND ND 07/18/22 20:01 BP 467655 1,1,1,2-Tetrachloroethane ETO15 60.00 50 210 ND ND 07/18/22 20:01 BP 467655 m,p-Xylene ETO15 60.00 59 130 ND ND 07/18/22 20:01 BP 467655 o-Xylene ETO15 60.00 18 130 ND ND 07/18/22 20:01 BP 467655 Styrene ETO15 60.00 28 130 ND ND 07/18/22 20:01 BP 467655 Bromoform ETO15 60.00 78 310 ND ND 07/18/22 20:01 BP 467655 1,1,2,2-Tetrachloroethane ETO15 60.00 49 210 ND ND 07/18/22 20:01 BP 467655 4-Ethyl Toluene ETO15 60.00 33 150 ND ND 07/18/22 20:01 BP 467655 1,3,5-Trimethylbenzene ETO15 60.00 18 150 ND ND 07/18/22 20:01 BP 467655 1,2,4-Trimethylbenzene ETO15 60.00 36 150 ND ND 07/18/22 20:01 BP 467655 1,4-Dichlorobenzene ETO15 60.00 45 180 ND ND 07/18/22 20:01 BP 467655 1,3-Dichlorobenzene ETO15 60.00 80 180 ND ND 07/18/22 20:01 BP 467655 1,2-Dichlorobenzene ETO15 60.00 64 180 ND ND 07/18/22 20:01 BP 467655 Hexachlorobutadiene ETO15 60.00 110 320 ND ND 07/18/22 20:01 BP 467655 1,2,4-Trichlorobenzene ETO15 60.00 130 220 ND ND 07/18/22 20:01 BP 467655 Naphthalene ETO15 60.00 76 160 ND ND 07/18/22 20:01 BP 467655 (S) 4-Bromofluorobenzene ETO15 60.00 50 150 85 % 07/18/22 20:01 BP 467655 Total Page Count: 46 Page 17 of 46
Packet Page 2418

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.3
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12262
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 17:07
15799.004.000
Cedar Boulevard
SG-4 @ 10'
Sample Matrix: Air
Lab Sample ID: 2207125-007A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 60.00 94 150 ND ND 07/18/22 18:36 BP 467655 1,1-Difluoroethane ETO15 60.00 21 810 ND ND 07/18/22 18:36 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 60.00 84 210 ND ND 07/18/22 18:36 BP 467655 Chloromethane ETO15 60.00 120 250 ND ND 07/18/22 18:36 BP 467655 Vinyl Chloride ETO15 60.00 14 77 ND ND 07/18/22 18:36 BP 467655 1,3-Butadiene ETO15 60.00 20 66 ND ND 07/18/22 18:36 BP 467655 Bromomethane ETO15 60.00 39 120 ND ND 07/18/22 18:36 BP 467655 Chloroethane ETO15 60.00 49 79 ND ND 07/18/22 18:36 BP 467655 Trichlorofluoromethane ETO15 60.00 33 170 ND ND 07/18/22 18:36 BP 467655 1,1-Dichloroethene ETO15 60.00 50 120 ND ND 07/18/22 18:36 BP 467655 Freon 113 ETO15 60.00 61 230 ND ND 07/18/22 18:36 BP 467655 Carbon Disulfide ETO15 60.00 22 93 ND ND 07/18/22 18:36 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 60.00 77 740 ND ND 07/18/22 18:36 BP 467655 Methylene Chloride ETO15 60.00 42 620 ND ND 07/18/22 18:36 BP 467655 Acetone ETO15 60.00 24 710 ND ND 07/18/22 18:36 BP 467655 trans-1,2-Dichloroethene ETO15 60.00 29 120 ND ND 07/18/22 18:36 BP 467655 Hexane ETO15 60.00 28 110 ND ND 07/18/22 18:36 BP 467655 MTBE ETO15 60.00 27 110 ND ND 07/18/22 18:36 BP 467655
tert-Butanol ETO15 60.00 37 91 ND ND 07/18/22 18:36 BP 467655 Diisopropyl ether (DIPE) ETO15 60.00 44 130 ND ND 07/18/22 18:36 BP 467655 1,1-Dichloroethane ETO15 60.00 33 120 ND ND 07/18/22 18:36 BP 467655 ETBE ETO15 60.00 20 130 ND ND 07/18/22 18:36 BP 467655
cis-1,2-Dichloroethene ETO15 60.00 50 120 ND ND 07/18/22 18:36 BP 467655 Chloroform ETO15 60.00 58 150 ND ND 07/18/22 18:36 BP 467655 Vinyl Acetate ETO15 60.00 45 110 ND ND 07/18/22 18:36 BP 467655 Carbon Tetrachloride ETO15 60.00 66 190 ND ND 07/18/22 18:36 BP 467655 1,1,1-Trichloroethane ETO15 60.00 48 160 2100 384.62 07/18/22 18:36 BP 467655 2-Butanone (MEK) ETO15 60.00 23 89 ND ND 07/18/22 18:36 BP 467655 Ethyl Acetate ETO15 60.00 29 110 ND ND 07/18/22 18:36 BP 467655 Tetrahydrofuran ETO15 60.00 27 89 ND ND 07/18/22 18:36 BP 467655 Benzene ETO15 60.00 26 96 ND ND 07/18/22 18:36 BP 467655 TAME ETO15 60.00 40 130 ND ND 07/18/22 18:36 BP 467655
1,2-Dichloroethane (EDC) ETO15 60.00 25 120 ND ND 07/18/22 18:36 BP 467655 Trichloroethylene ETO15 60.00 48 160 ND ND 07/18/22 18:36 BP 467655 1,2-Dichloropropane ETO15 60.00 46 140 ND ND 07/18/22 18:36 BP 467655 Bromodichloromethane ETO15 60.00 45 200 ND ND 07/18/22 18:36 BP 467655 1,4-Dioxane ETO15 60.00 110 220 ND ND 07/18/22 18:36 BP 467655 Total Page Count: 46 Page 18 of 46
Packet Page 2419

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.3
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12262
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 17:07
15799.004.000
Cedar Boulevard
SG-4 @ 10'
Sample Matrix: Air
Lab Sample ID: 2207125-007A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 60.00 64 140 ND ND 07/18/22 18:36 BP 467655 Toluene ETO15 60.00 45 110 ND ND 07/18/22 18:36 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 60.00 45 120 ND ND 07/18/22 18:36 BP 467655 cis-1,3-Dichloropropene ETO15 60.00 25 140 ND ND 07/18/22 18:36 BP 467655 Tetrachloroethylene ETO15 60.00 87 200 16000 2,359.88 07/18/22 18:36 BP 467655 1,1,2-Trichloroethane ETO15 60.00 35 160 ND ND 07/18/22 18:36 BP 467655 Dibromochloromethane ETO15 60.00 67 260 ND ND 07/18/22 18:36 BP 467655 1,2-Dibromoethane (EDB) ETO15 60.00 44 230 ND ND 07/18/22 18:36 BP 467655 2-Hexanone ETO15 60.00 39 120 ND ND 07/18/22 18:36 BP 467655 Ethyl Benzene ETO15 60.00 38 130 ND ND 07/18/22 18:36 BP 467655 Chlorobenzene ETO15 60.00 36 140 ND ND 07/18/22 18:36 BP 467655 1,1,1,2-Tetrachloroethane ETO15 60.00 50 210 ND ND 07/18/22 18:36 BP 467655 m,p-Xylene ETO15 60.00 59 130 ND ND 07/18/22 18:36 BP 467655 o-Xylene ETO15 60.00 18 130 ND ND 07/18/22 18:36 BP 467655 Styrene ETO15 60.00 28 130 ND ND 07/18/22 18:36 BP 467655 Bromoform ETO15 60.00 78 310 ND ND 07/18/22 18:36 BP 467655 1,1,2,2-Tetrachloroethane ETO15 60.00 49 210 ND ND 07/18/22 18:36 BP 467655 4-Ethyl Toluene ETO15 60.00 33 150 ND ND 07/18/22 18:36 BP 467655 1,3,5-Trimethylbenzene ETO15 60.00 18 150 ND ND 07/18/22 18:36 BP 467655 1,2,4-Trimethylbenzene ETO15 60.00 36 150 ND ND 07/18/22 18:36 BP 467655 1,4-Dichlorobenzene ETO15 60.00 45 180 ND ND 07/18/22 18:36 BP 467655 1,3-Dichlorobenzene ETO15 60.00 80 180 ND ND 07/18/22 18:36 BP 467655 1,2-Dichlorobenzene ETO15 60.00 64 180 ND ND 07/18/22 18:36 BP 467655 Hexachlorobutadiene ETO15 60.00 110 320 ND ND 07/18/22 18:36 BP 467655 1,2,4-Trichlorobenzene ETO15 60.00 130 220 ND ND 07/18/22 18:36 BP 467655 Naphthalene ETO15 60.00 76 160 ND ND 07/18/22 18:36 BP 467655 (S) 4-Bromofluorobenzene ETO15 60.00 50 150 82 % 07/18/22 18:36 BP 467655 Total Page Count: 46 Page 19 of 46
Packet Page 2420

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.4
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3583
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 14:25
15799.004.000
Cedar Boulevard
SG-6 @ 6'
Sample Matrix: Air
Lab Sample ID: 2207125-008A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 60.00 94 150 ND ND 07/18/22 19:01 BP 467655 1,1-Difluoroethane ETO15 60.00 21 810 ND ND 07/18/22 19:01 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 60.00 84 210 ND ND 07/18/22 19:01 BP 467655 Chloromethane ETO15 60.00 120 250 360 173.91 07/18/22 19:01 BP 467655 Vinyl Chloride ETO15 60.00 14 77 ND ND 07/18/22 19:01 BP 467655 1,3-Butadiene ETO15 60.00 20 66 ND ND 07/18/22 19:01 BP 467655 Bromomethane ETO15 60.00 39 120 ND ND 07/18/22 19:01 BP 467655 Chloroethane ETO15 60.00 49 79 ND ND 07/18/22 19:01 BP 467655 Trichlorofluoromethane ETO15 60.00 33 170 ND ND 07/18/22 19:01 BP 467655 1,1-Dichloroethene ETO15 60.00 50 120 ND ND 07/18/22 19:01 BP 467655 Freon 113 ETO15 60.00 61 230 ND ND 07/18/22 19:01 BP 467655 Carbon Disulfide ETO15 60.00 22 93 ND ND 07/18/22 19:01 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 60.00 77 740 ND ND 07/18/22 19:01 BP 467655 Methylene Chloride ETO15 60.00 42 620 ND ND 07/18/22 19:01 BP 467655 Acetone ETO15 60.00 24 710 ND ND 07/18/22 19:01 BP 467655 trans-1,2-Dichloroethene ETO15 60.00 29 120 ND ND 07/18/22 19:01 BP 467655 Hexane ETO15 60.00 28 110 ND ND 07/18/22 19:01 BP 467655 MTBE ETO15 60.00 27 110 ND ND 07/18/22 19:01 BP 467655
tert-Butanol ETO15 60.00 37 91 ND ND 07/18/22 19:01 BP 467655 Diisopropyl ether (DIPE) ETO15 60.00 44 130 ND ND 07/18/22 19:01 BP 467655 1,1-Dichloroethane ETO15 60.00 33 120 140 34.57 07/18/22 19:01 BP 467655 ETBE ETO15 60.00 20 130 ND ND 07/18/22 19:01 BP 467655
cis-1,2-Dichloroethene ETO15 60.00 50 120 ND ND 07/18/22 19:01 BP 467655 Chloroform ETO15 60.00 58 150 ND ND 07/18/22 19:01 BP 467655 Vinyl Acetate ETO15 60.00 45 110 ND ND 07/18/22 19:01 BP 467655 Carbon Tetrachloride ETO15 60.00 66 190 ND ND 07/18/22 19:01 BP 467655 1,1,1-Trichloroethane ETO15 60.00 48 160 210 38.46 07/18/22 19:01 BP 467655 2-Butanone (MEK) ETO15 60.00 23 89 ND ND 07/18/22 19:01 BP 467655 Ethyl Acetate ETO15 60.00 29 110 ND ND 07/18/22 19:01 BP 467655 Tetrahydrofuran ETO15 60.00 27 89 ND ND 07/18/22 19:01 BP 467655 Benzene ETO15 60.00 26 96 ND ND 07/18/22 19:01 BP 467655 TAME ETO15 60.00 40 130 ND ND 07/18/22 19:01 BP 467655
1,2-Dichloroethane (EDC) ETO15 60.00 25 120 ND ND 07/18/22 19:01 BP 467655 Trichloroethylene ETO15 60.00 48 160 ND ND 07/18/22 19:01 BP 467655 1,2-Dichloropropane ETO15 60.00 46 140 ND ND 07/18/22 19:01 BP 467655 Bromodichloromethane ETO15 60.00 45 200 ND ND 07/18/22 19:01 BP 467655 1,4-Dioxane ETO15 60.00 110 220 ND ND 07/18/22 19:01 BP 467655 Total Page Count: 46 Page 20 of 46
Packet Page 2421

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.4
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3583
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 14:25
15799.004.000
Cedar Boulevard
SG-6 @ 6'
Sample Matrix: Air
Lab Sample ID: 2207125-008A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 60.00 64 140 ND ND 07/18/22 19:01 BP 467655 Toluene ETO15 60.00 45 110 ND ND 07/18/22 19:01 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 60.00 45 120 ND ND 07/18/22 19:01 BP 467655 cis-1,3-Dichloropropene ETO15 60.00 25 140 ND ND 07/18/22 19:01 BP 467655 Tetrachloroethylene ETO15 60.00 87 200 11000 1,622.42 07/18/22 19:01 BP 467655 1,1,2-Trichloroethane ETO15 60.00 35 160 ND ND 07/18/22 19:01 BP 467655 Dibromochloromethane ETO15 60.00 67 260 ND ND 07/18/22 19:01 BP 467655 1,2-Dibromoethane (EDB) ETO15 60.00 44 230 ND ND 07/18/22 19:01 BP 467655 2-Hexanone ETO15 60.00 39 120 ND ND 07/18/22 19:01 BP 467655 Ethyl Benzene ETO15 60.00 38 130 ND ND 07/18/22 19:01 BP 467655 Chlorobenzene ETO15 60.00 36 140 ND ND 07/18/22 19:01 BP 467655 1,1,1,2-Tetrachloroethane ETO15 60.00 50 210 ND ND 07/18/22 19:01 BP 467655 m,p-Xylene ETO15 60.00 59 130 ND ND 07/18/22 19:01 BP 467655 o-Xylene ETO15 60.00 18 130 ND ND 07/18/22 19:01 BP 467655 Styrene ETO15 60.00 28 130 ND ND 07/18/22 19:01 BP 467655 Bromoform ETO15 60.00 78 310 ND ND 07/18/22 19:01 BP 467655 1,1,2,2-Tetrachloroethane ETO15 60.00 49 210 ND ND 07/18/22 19:01 BP 467655 4-Ethyl Toluene ETO15 60.00 33 150 ND ND 07/18/22 19:01 BP 467655 1,3,5-Trimethylbenzene ETO15 60.00 18 150 ND ND 07/18/22 19:01 BP 467655 1,2,4-Trimethylbenzene ETO15 60.00 36 150 ND ND 07/18/22 19:01 BP 467655 1,4-Dichlorobenzene ETO15 60.00 45 180 ND ND 07/18/22 19:01 BP 467655 1,3-Dichlorobenzene ETO15 60.00 80 180 ND ND 07/18/22 19:01 BP 467655 1,2-Dichlorobenzene ETO15 60.00 64 180 ND ND 07/18/22 19:01 BP 467655 Hexachlorobutadiene ETO15 60.00 110 320 ND ND 07/18/22 19:01 BP 467655 1,2,4-Trichlorobenzene ETO15 60.00 130 220 ND ND 07/18/22 19:01 BP 467655 Naphthalene ETO15 60.00 76 160 ND ND 07/18/22 19:01 BP 467655 (S) 4-Bromofluorobenzene ETO15 60.00 50 150 92 % 07/18/22 19:01 BP 467655 Total Page Count: 46 Page 21 of 46
Packet Page 2422

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.3
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A11734
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 14:32
15799.004.000
Cedar Boulevard
SG-6 @ 10'
Sample Matrix: Air
Lab Sample ID: 2207125-009A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 60.00 94 150 ND ND 07/18/22 19:26 BP 467655 1,1-Difluoroethane ETO15 60.00 21 810 ND ND 07/18/22 19:26 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 60.00 84 210 ND ND 07/18/22 19:26 BP 467655 Chloromethane ETO15 60.00 120 250 440 212.56 07/18/22 19:26 BP 467655 Vinyl Chloride ETO15 60.00 14 77 ND ND 07/18/22 19:26 BP 467655 1,3-Butadiene ETO15 60.00 20 66 ND ND 07/18/22 19:26 BP 467655 Bromomethane ETO15 60.00 39 120 ND ND 07/18/22 19:26 BP 467655 Chloroethane ETO15 60.00 49 79 ND ND 07/18/22 19:26 BP 467655 Trichlorofluoromethane ETO15 60.00 33 170 ND ND 07/18/22 19:26 BP 467655 1,1-Dichloroethene ETO15 60.00 50 120 ND ND 07/18/22 19:26 BP 467655 Freon 113 ETO15 60.00 61 230 ND ND 07/18/22 19:26 BP 467655 Carbon Disulfide ETO15 60.00 22 93 ND ND 07/18/22 19:26 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 60.00 77 740 ND ND 07/18/22 19:26 BP 467655 Methylene Chloride ETO15 60.00 42 620 ND ND 07/18/22 19:26 BP 467655 Acetone ETO15 60.00 24 710 ND ND 07/18/22 19:26 BP 467655 trans-1,2-Dichloroethene ETO15 60.00 29 120 ND ND 07/18/22 19:26 BP 467655 Hexane ETO15 60.00 28 110 ND ND 07/18/22 19:26 BP 467655 MTBE ETO15 60.00 27 110 ND ND 07/18/22 19:26 BP 467655
tert-Butanol ETO15 60.00 37 91 ND ND 07/18/22 19:26 BP 467655 Diisopropyl ether (DIPE) ETO15 60.00 44 130 ND ND 07/18/22 19:26 BP 467655 1,1-Dichloroethane ETO15 60.00 33 120 190 46.91 07/18/22 19:26 BP 467655 ETBE ETO15 60.00 20 130 ND ND 07/18/22 19:26 BP 467655
cis-1,2-Dichloroethene ETO15 60.00 50 120 ND ND 07/18/22 19:26 BP 467655 Chloroform ETO15 60.00 58 150 ND ND 07/18/22 19:26 BP 467655 Vinyl Acetate ETO15 60.00 45 110 ND ND 07/18/22 19:26 BP 467655 Carbon Tetrachloride ETO15 60.00 66 190 ND ND 07/18/22 19:26 BP 467655 1,1,1-Trichloroethane ETO15 60.00 48 160 ND ND 07/18/22 19:26 BP 467655 2-Butanone (MEK) ETO15 60.00 23 89 ND ND 07/18/22 19:26 BP 467655 Ethyl Acetate ETO15 60.00 29 110 ND ND 07/18/22 19:26 BP 467655 Tetrahydrofuran ETO15 60.00 27 89 ND ND 07/18/22 19:26 BP 467655 Benzene ETO15 60.00 26 96 ND ND 07/18/22 19:26 BP 467655 TAME ETO15 60.00 40 130 ND ND 07/18/22 19:26 BP 467655
1,2-Dichloroethane (EDC) ETO15 60.00 25 120 ND ND 07/18/22 19:26 BP 467655 Trichloroethylene ETO15 60.00 48 160 270 50.28 07/18/22 19:26 BP 467655 1,2-Dichloropropane ETO15 60.00 46 140 ND ND 07/18/22 19:26 BP 467655 Bromodichloromethane ETO15 60.00 45 200 ND ND 07/18/22 19:26 BP 467655 1,4-Dioxane ETO15 60.00 110 220 ND ND 07/18/22 19:26 BP 467655 Total Page Count: 46 Page 22 of 46
Packet Page 2423

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.3
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A11734
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 14:32
15799.004.000
Cedar Boulevard
SG-6 @ 10'
Sample Matrix: Air
Lab Sample ID: 2207125-009A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 60.00 64 140 ND ND 07/18/22 19:26 BP 467655 Toluene ETO15 60.00 45 110 ND ND 07/18/22 19:26 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 60.00 45 120 ND ND 07/18/22 19:26 BP 467655 cis-1,3-Dichloropropene ETO15 60.00 25 140 ND ND 07/18/22 19:26 BP 467655 Tetrachloroethylene ETO15 60.00 87 200 11000 1,622.42 07/18/22 19:26 BP 467655 1,1,2-Trichloroethane ETO15 60.00 35 160 ND ND 07/18/22 19:26 BP 467655 Dibromochloromethane ETO15 60.00 67 260 ND ND 07/18/22 19:26 BP 467655 1,2-Dibromoethane (EDB) ETO15 60.00 44 230 ND ND 07/18/22 19:26 BP 467655 2-Hexanone ETO15 60.00 39 120 ND ND 07/18/22 19:26 BP 467655 Ethyl Benzene ETO15 60.00 38 130 ND ND 07/18/22 19:26 BP 467655 Chlorobenzene ETO15 60.00 36 140 ND ND 07/18/22 19:26 BP 467655 1,1,1,2-Tetrachloroethane ETO15 60.00 50 210 ND ND 07/18/22 19:26 BP 467655 m,p-Xylene ETO15 60.00 59 130 ND ND 07/18/22 19:26 BP 467655 o-Xylene ETO15 60.00 18 130 ND ND 07/18/22 19:26 BP 467655 Styrene ETO15 60.00 28 130 ND ND 07/18/22 19:26 BP 467655 Bromoform ETO15 60.00 78 310 ND ND 07/18/22 19:26 BP 467655 1,1,2,2-Tetrachloroethane ETO15 60.00 49 210 ND ND 07/18/22 19:26 BP 467655 4-Ethyl Toluene ETO15 60.00 33 150 ND ND 07/18/22 19:26 BP 467655 1,3,5-Trimethylbenzene ETO15 60.00 18 150 ND ND 07/18/22 19:26 BP 467655 1,2,4-Trimethylbenzene ETO15 60.00 36 150 ND ND 07/18/22 19:26 BP 467655 1,4-Dichlorobenzene ETO15 60.00 45 180 ND ND 07/18/22 19:26 BP 467655 1,3-Dichlorobenzene ETO15 60.00 80 180 ND ND 07/18/22 19:26 BP 467655 1,2-Dichlorobenzene ETO15 60.00 64 180 ND ND 07/18/22 19:26 BP 467655 Hexachlorobutadiene ETO15 60.00 110 320 ND ND 07/18/22 19:26 BP 467655 1,2,4-Trichlorobenzene ETO15 60.00 130 220 ND ND 07/18/22 19:26 BP 467655 Naphthalene ETO15 60.00 76 160 ND ND 07/18/22 19:26 BP 467655 (S) 4-Bromofluorobenzene ETO15 60.00 50 150 90 % 07/18/22 19:26 BP 467655 Total Page Count: 46 Page 23 of 46
Packet Page 2424

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.4
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3554
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 15:32
15799.004.000
Cedar Boulevard
SG-7 @ 6'
Sample Matrix: Air
Lab Sample ID: 2207125-010A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 30.00 47 74 ND ND 07/18/22 20:26 BP 467655 1,1-Difluoroethane ETO15 30.00 10 410 ND ND 07/18/22 20:26 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 30.00 42 100 ND ND 07/18/22 20:26 BP 467655 Chloromethane ETO15 30.00 61 120 ND ND 07/18/22 20:26 BP 467655 Vinyl Chloride ETO15 30.00 6.8 38 ND ND 07/18/22 20:26 BP 467655 1,3-Butadiene ETO15 30.00 10 33 ND ND 07/18/22 20:26 BP 467655 Bromomethane ETO15 30.00 20 58 ND ND 07/18/22 20:26 BP 467655 Chloroethane ETO15 30.00 24 40 ND ND 07/18/22 20:26 BP 467655 Trichlorofluoromethane ETO15 30.00 17 84 ND ND 07/18/22 20:26 BP 467655 1,1-Dichloroethene ETO15 30.00 25 60 120 30.23 07/18/22 20:26 BP 467655 Freon 113 ETO15 30.00 31 110 ND ND 07/18/22 20:26 BP 467655 Carbon Disulfide ETO15 30.00 11 47 ND ND 07/18/22 20:26 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 30.00 38 370 ND ND 07/18/22 20:26 BP 467655 Methylene Chloride ETO15 30.00 21 310 ND ND 07/18/22 20:26 BP 467655 Acetone ETO15 30.00 12 360 500 210.08 07/18/22 20:26 BP 467655 trans-1,2-Dichloroethene ETO15 30.00 14 59 990 250.00 07/18/22 20:26 BP 467655 Hexane ETO15 30.00 14 53 130 36.93 07/18/22 20:26 BP 467655 MTBE ETO15 30.00 13 54 ND ND 07/18/22 20:26 BP 467655
tert-Butanol ETO15 30.00 19 45 ND ND 07/18/22 20:26 BP 467655 Diisopropyl ether (DIPE) ETO15 30.00 22 63 ND ND 07/18/22 20:26 BP 467655 1,1-Dichloroethane ETO15 30.00 16 61 800 197.53 07/18/22 20:26 BP 467655 ETBE ETO15 30.00 9.8 63 ND ND 07/18/22 20:26 BP 467655
cis-1,2-Dichloroethene ETO15 30.00 25 59 7300 1,843.43 07/18/22 20:26 BP 467655 Chloroform ETO15 30.00 29 73 ND ND 07/18/22 20:26 BP 467655 Vinyl Acetate ETO15 30.00 23 53 ND ND 07/18/22 20:26 BP 467655 Carbon Tetrachloride ETO15 30.00 33 94 ND ND 07/18/22 20:26 BP 467655 1,1,1-Trichloroethane ETO15 30.00 24 82 ND ND 07/18/22 20:26 BP 467655 2-Butanone (MEK) ETO15 30.00 12 44 ND ND 07/18/22 20:26 BP 467655 Ethyl Acetate ETO15 30.00 14 54 ND ND 07/18/22 20:26 BP 467655 Tetrahydrofuran ETO15 30.00 13 44 ND ND 07/18/22 20:26 BP 467655 Benzene ETO15 30.00 13 48 ND ND 07/18/22 20:26 BP 467655 TAME ETO15 30.00 20 63 ND ND 07/18/22 20:26 BP 467655
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 07/18/22 20:26 BP 467655 Trichloroethylene ETO15 30.00 24 81 3800 707.64 07/18/22 20:26 BP 467655 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 07/18/22 20:26 BP 467655 Bromodichloromethane ETO15 30.00 22 100 ND ND 07/18/22 20:26 BP 467655 1,4-Dioxane ETO15 30.00 54 110 ND ND 07/18/22 20:26 BP 467655 Total Page Count: 46 Page 24 of 46
Packet Page 2425

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.4
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3554
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 15:32
15799.004.000
Cedar Boulevard
SG-7 @ 6'
Sample Matrix: Air
Lab Sample ID: 2207125-010A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 07/18/22 20:26 BP 467655 Toluene ETO15 30.00 23 57 ND ND 07/18/22 20:26 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 07/18/22 20:26 BP 467655 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 07/18/22 20:26 BP 467655 Tetrachloroethylene ETO15 30.00 44 100 4400 648.97 07/18/22 20:26 BP 467655 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 07/18/22 20:26 BP 467655 Dibromochloromethane ETO15 30.00 33 130 ND ND 07/18/22 20:26 BP 467655 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 07/18/22 20:26 BP 467655 2-Hexanone ETO15 30.00 20 62 ND ND 07/18/22 20:26 BP 467655 Ethyl Benzene ETO15 30.00 19 65 ND ND 07/18/22 20:26 BP 467655 Chlorobenzene ETO15 30.00 18 69 ND ND 07/18/22 20:26 BP 467655 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 07/18/22 20:26 BP 467655 m,p-Xylene ETO15 30.00 29 65 ND ND 07/18/22 20:26 BP 467655 o-Xylene ETO15 30.00 9.1 65 ND ND 07/18/22 20:26 BP 467655 Styrene ETO15 30.00 14 64 ND ND 07/18/22 20:26 BP 467655 Bromoform ETO15 30.00 39 160 ND ND 07/18/22 20:26 BP 467655 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 07/18/22 20:26 BP 467655 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 07/18/22 20:26 BP 467655 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 07/18/22 20:26 BP 467655 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 07/18/22 20:26 BP 467655 1,4-Dichlorobenzene ETO15 30.00 22 90 ND ND 07/18/22 20:26 BP 467655 1,3-Dichlorobenzene ETO15 30.00 40 90 ND ND 07/18/22 20:26 BP 467655 1,2-Dichlorobenzene ETO15 30.00 32 90 ND ND 07/18/22 20:26 BP 467655 Hexachlorobutadiene ETO15 30.00 56 160 ND ND 07/18/22 20:26 BP 467655 1,2,4-Trichlorobenzene ETO15 30.00 65 110 ND ND 07/18/22 20:26 BP 467655 Naphthalene ETO15 30.00 38 79 ND ND 07/18/22 20:26 BP 467655 (S) 4-Bromofluorobenzene ETO15 30.00 50 150 93 % 07/18/22 20:26 BP 467655 Total Page Count: 46 Page 25 of 46
Packet Page 2426

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12261
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 15:24
15799.004.000
Cedar Boulevard
SG-7 @ 10'
Sample Matrix: Air
Lab Sample ID: 2207125-011A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 30.00 47 74 ND ND 07/18/22 20:51 BP 467655 1,1-Difluoroethane ETO15 30.00 10 410 ND ND 07/18/22 20:51 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 30.00 42 100 ND ND 07/18/22 20:51 BP 467655 Chloromethane ETO15 30.00 61 120 ND ND 07/18/22 20:51 BP 467655 Vinyl Chloride ETO15 30.00 6.8 38 ND ND 07/18/22 20:51 BP 467655 1,3-Butadiene ETO15 30.00 10 33 ND ND 07/18/22 20:51 BP 467655 Bromomethane ETO15 30.00 20 58 ND ND 07/18/22 20:51 BP 467655 Chloroethane ETO15 30.00 24 40 ND ND 07/18/22 20:51 BP 467655 Trichlorofluoromethane ETO15 30.00 17 84 ND ND 07/18/22 20:51 BP 467655 1,1-Dichloroethene ETO15 30.00 25 60 220 55.42 07/18/22 20:51 BP 467655 Freon 113 ETO15 30.00 31 110 ND ND 07/18/22 20:51 BP 467655 Carbon Disulfide ETO15 30.00 11 47 ND ND 07/18/22 20:51 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 30.00 38 370 ND ND 07/18/22 20:51 BP 467655 Methylene Chloride ETO15 30.00 21 310 ND ND 07/18/22 20:51 BP 467655 Acetone ETO15 30.00 12 360 500 210.08 07/18/22 20:51 BP 467655 trans-1,2-Dichloroethene ETO15 30.00 14 59 1300 328.28 07/18/22 20:51 BP 467655 Hexane ETO15 30.00 14 53 110 31.25 07/18/22 20:51 BP 467655 MTBE ETO15 30.00 13 54 ND ND 07/18/22 20:51 BP 467655
tert-Butanol ETO15 30.00 19 45 ND ND 07/18/22 20:51 BP 467655 Diisopropyl ether (DIPE) ETO15 30.00 22 63 ND ND 07/18/22 20:51 BP 467655 1,1-Dichloroethane ETO15 30.00 16 61 1000 246.91 07/18/22 20:51 BP 467655 ETBE ETO15 30.00 9.8 63 ND ND 07/18/22 20:51 BP 467655
Chloroform ETO15 30.00 29 73 ND ND 07/18/22 20:51 BP 467655 Vinyl Acetate ETO15 30.00 23 53 ND ND 07/18/22 20:51 BP 467655 Carbon Tetrachloride ETO15 30.00 33 94 ND ND 07/18/22 20:51 BP 467655 1,1,1-Trichloroethane ETO15 30.00 24 82 ND ND 07/18/22 20:51 BP 467655 2-Butanone (MEK) ETO15 30.00 12 44 ND ND 07/18/22 20:51 BP 467655 Ethyl Acetate ETO15 30.00 14 54 ND ND 07/18/22 20:51 BP 467655 Tetrahydrofuran ETO15 30.00 13 44 ND ND 07/18/22 20:51 BP 467655 Benzene ETO15 30.00 13 48 ND ND 07/18/22 20:51 BP 467655 TAME ETO15 30.00 20 63 ND ND 07/18/22 20:51 BP 467655
1,2-Dichloroethane (EDC) ETO15 30.00 13 61 ND ND 07/18/22 20:51 BP 467655 Trichloroethylene ETO15 30.00 24 81 4900 912.48 07/18/22 20:51 BP 467655 1,2-Dichloropropane ETO15 30.00 23 69 ND ND 07/18/22 20:51 BP 467655 Bromodichloromethane ETO15 30.00 22 100 ND ND 07/18/22 20:51 BP 467655 1,4-Dioxane ETO15 30.00 54 110 ND ND 07/18/22 20:51 BP 467655 trans-1,3-Dichloropropene ETO15 30.00 32 68 ND ND 07/18/22 20:51 BP 467655 Total Page Count: 46 Page 26 of 46
Packet Page 2427

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 12.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12261
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 15:24
15799.004.000
Cedar Boulevard
SG-7 @ 10'
Sample Matrix: Air
Lab Sample ID: 2207125-011A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Toluene ETO15 30.00 23 57 ND ND 07/18/22 20:51 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 30.00 22 62 ND ND 07/18/22 20:51 BP 467655 cis-1,3-Dichloropropene ETO15 30.00 13 68 ND ND 07/18/22 20:51 BP 467655 Tetrachloroethylene ETO15 30.00 44 100 840 123.89 07/18/22 20:51 BP 467655 1,1,2-Trichloroethane ETO15 30.00 18 82 ND ND 07/18/22 20:51 BP 467655 Dibromochloromethane ETO15 30.00 33 130 ND ND 07/18/22 20:51 BP 467655 1,2-Dibromoethane (EDB) ETO15 30.00 22 120 ND ND 07/18/22 20:51 BP 467655 2-Hexanone ETO15 30.00 20 62 ND ND 07/18/22 20:51 BP 467655 Ethyl Benzene ETO15 30.00 19 65 ND ND 07/18/22 20:51 BP 467655 Chlorobenzene ETO15 30.00 18 69 ND ND 07/18/22 20:51 BP 467655 1,1,1,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 07/18/22 20:51 BP 467655 m,p-Xylene ETO15 30.00 29 65 ND ND 07/18/22 20:51 BP 467655 o-Xylene ETO15 30.00 9.1 65 ND ND 07/18/22 20:51 BP 467655 Styrene ETO15 30.00 14 64 ND ND 07/18/22 20:51 BP 467655 Bromoform ETO15 30.00 39 160 ND ND 07/18/22 20:51 BP 467655 1,1,2,2-Tetrachloroethane ETO15 30.00 25 100 ND ND 07/18/22 20:51 BP 467655 4-Ethyl Toluene ETO15 30.00 16 74 ND ND 07/18/22 20:51 BP 467655 1,3,5-Trimethylbenzene ETO15 30.00 9.0 74 ND ND 07/18/22 20:51 BP 467655 1,2,4-Trimethylbenzene ETO15 30.00 18 74 ND ND 07/18/22 20:51 BP 467655 1,4-Dichlorobenzene ETO15 30.00 22 90 ND ND 07/18/22 20:51 BP 467655 1,3-Dichlorobenzene ETO15 30.00 40 90 ND ND 07/18/22 20:51 BP 467655 1,2-Dichlorobenzene ETO15 30.00 32 90 ND ND 07/18/22 20:51 BP 467655 Hexachlorobutadiene ETO15 30.00 56 160 ND ND 07/18/22 20:51 BP 467655 1,2,4-Trichlorobenzene ETO15 30.00 65 110 ND ND 07/18/22 20:51 BP 467655 Naphthalene ETO15 30.00 38 79 ND ND 07/18/22 20:51 BP 467655 (S) 4-Bromofluorobenzene ETO15 30.00 50 150 100 % 07/18/22 20:51 BP 467655 Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
cis-1,2-Dichloroethene ETO15 60.00 50 120 8200 2,070.71 07/19/22 0:08 BP 467655 (S) 4-Bromofluorobenzene ETO15 60.00 50 150 91 % 07/19/22 0:08 BP 467655 Total Page Count: 46 Page 27 of 46
Packet Page 2428

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 4.3
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3585
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 15:57
15799.004.000
Cedar Boulevard
SG-8
Sample Matrix: Air
Lab Sample ID: 2207125-012A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 3.00 4.7 7.4 ND ND 07/19/22 10:13 BP 467655 1,1-Difluoroethane ETO15 3.00 1.0 41 ND ND 07/19/22 10:13 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 3.00 4.2 10 ND ND 07/19/22 10:13 BP 467655 Chloromethane ETO15 3.00 6.1 12 ND ND 07/19/22 10:13 BP 467655 Vinyl Chloride ETO15 3.00 0.68 3.8 ND ND 07/19/22 10:13 BP 467655 1,3-Butadiene ETO15 3.00 1.0 3.3 ND ND 07/19/22 10:13 BP 467655 Bromomethane ETO15 3.00 2.0 5.8 ND ND 07/19/22 10:13 BP 467655 Chloroethane ETO15 3.00 2.4 4.0 ND ND 07/19/22 10:13 BP 467655 Trichlorofluoromethane ETO15 3.00 1.7 8.4 ND ND 07/19/22 10:13 BP 467655 1,1-Dichloroethene ETO15 3.00 2.5 6.0 ND ND 07/19/22 10:13 BP 467655 Freon 113 ETO15 3.00 3.1 11 ND ND 07/19/22 10:13 BP 467655 Carbon Disulfide ETO15 3.00 1.1 4.7 ND ND 07/19/22 10:13 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 3.00 3.8 37 ND ND 07/19/22 10:13 BP 467655 Methylene Chloride ETO15 3.00 2.1 31 ND ND 07/19/22 10:13 BP 467655 Acetone ETO15 3.00 1.2 36 ND ND 07/19/22 10:13 BP 467655 trans-1,2-Dichloroethene ETO15 3.00 1.4 5.9 ND ND 07/19/22 10:13 BP 467655 Hexane ETO15 3.00 1.4 5.3 ND ND 07/19/22 10:13 BP 467655 MTBE ETO15 3.00 1.3 5.4 ND ND 07/19/22 10:13 BP 467655
tert-Butanol ETO15 3.00 1.9 4.5 ND ND 07/19/22 10:13 BP 467655 Diisopropyl ether (DIPE) ETO15 3.00 2.2 6.3 ND ND 07/19/22 10:13 BP 467655 1,1-Dichloroethane ETO15 3.00 1.6 6.1 ND ND 07/19/22 10:13 BP 467655 ETBE ETO15 3.00 0.98 6.3 ND ND 07/19/22 10:13 BP 467655 cis-1,2-Dichloroethene ETO15 3.00 2.5 5.9 ND ND 07/19/22 10:13 BP 467655 Chloroform ETO15 3.00 2.9 7.3 ND ND 07/19/22 10:13 BP 467655 Vinyl Acetate ETO15 3.00 2.3 5.3 ND ND 07/19/22 10:13 BP 467655 Carbon Tetrachloride ETO15 3.00 3.3 9.4 ND ND 07/19/22 10:13 BP 467655 1,1,1-Trichloroethane ETO15 3.00 2.4 8.2 12 2.20 07/19/22 10:13 BP 467655 2-Butanone (MEK) ETO15 3.00 1.2 4.4 ND ND 07/19/22 10:13 BP 467655 Ethyl Acetate ETO15 3.00 1.4 5.4 ND ND 07/19/22 10:13 BP 467655 Tetrahydrofuran ETO15 3.00 1.3 4.4 ND ND 07/19/22 10:13 BP 467655 Benzene ETO15 3.00 1.3 4.8 ND ND 07/19/22 10:13 BP 467655 TAME ETO15 3.00 2.0 6.3 ND ND 07/19/22 10:13 BP 467655
1,2-Dichloroethane (EDC) ETO15 3.00 1.3 6.1 ND ND 07/19/22 10:13 BP 467655 Trichloroethylene ETO15 3.00 2.4 8.1 ND ND 07/19/22 10:13 BP 467655 1,2-Dichloropropane ETO15 3.00 2.3 6.9 ND ND 07/19/22 10:13 BP 467655 Bromodichloromethane ETO15 3.00 2.2 10 ND ND 07/19/22 10:13 BP 467655 1,4-Dioxane ETO15 3.00 5.4 11 ND ND 07/19/22 10:13 BP 467655 Total Page Count: 46 Page 28 of 46
Packet Page 2429

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 4.3
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: R3585
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 15:57
15799.004.000
Cedar Boulevard
SG-8
Sample Matrix: Air
Lab Sample ID: 2207125-012A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 3.00 3.2 6.8 ND ND 07/19/22 10:13 BP 467655 Toluene ETO15 3.00 2.3 5.7 ND ND 07/19/22 10:13 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 3.00 2.2 6.2 ND ND 07/19/22 10:13 BP 467655 cis-1,3-Dichloropropene ETO15 3.00 1.3 6.8 ND ND 07/19/22 10:13 BP 467655 Tetrachloroethylene ETO15 3.00 4.4 10 16 2.36 07/19/22 10:13 BP 467655 1,1,2-Trichloroethane ETO15 3.00 1.8 8.2 ND ND 07/19/22 10:13 BP 467655 Dibromochloromethane ETO15 3.00 3.3 13 ND ND 07/19/22 10:13 BP 467655 1,2-Dibromoethane (EDB) ETO15 3.00 2.2 12 ND ND 07/19/22 10:13 BP 467655 2-Hexanone ETO15 3.00 2.0 6.2 ND ND 07/19/22 10:13 BP 467655 Ethyl Benzene ETO15 3.00 1.9 6.5 ND ND 07/19/22 10:13 BP 467655 Chlorobenzene ETO15 3.00 1.8 6.9 ND ND 07/19/22 10:13 BP 467655 1,1,1,2-Tetrachloroethane ETO15 3.00 2.5 10 ND ND 07/19/22 10:13 BP 467655 m,p-Xylene ETO15 3.00 2.9 6.5 ND ND 07/19/22 10:13 BP 467655 o-Xylene ETO15 3.00 0.91 6.5 ND ND 07/19/22 10:13 BP 467655 Styrene ETO15 3.00 1.4 6.4 ND ND 07/19/22 10:13 BP 467655 Bromoform ETO15 3.00 3.9 16 ND ND 07/19/22 10:13 BP 467655 1,1,2,2-Tetrachloroethane ETO15 3.00 2.5 10 ND ND 07/19/22 10:13 BP 467655 4-Ethyl Toluene ETO15 3.00 1.6 7.4 ND ND 07/19/22 10:13 BP 467655 1,3,5-Trimethylbenzene ETO15 3.00 0.90 7.4 ND ND 07/19/22 10:13 BP 467655 1,2,4-Trimethylbenzene ETO15 3.00 1.8 7.4 ND ND 07/19/22 10:13 BP 467655 1,4-Dichlorobenzene ETO15 3.00 2.2 9.0 ND ND 07/19/22 10:13 BP 467655 1,3-Dichlorobenzene ETO15 3.00 4.0 9.0 ND ND 07/19/22 10:13 BP 467655 1,2-Dichlorobenzene ETO15 3.00 3.2 9.0 ND ND 07/19/22 10:13 BP 467655 Hexachlorobutadiene ETO15 3.00 5.6 16 ND ND 07/19/22 10:13 BP 467655 1,2,4-Trichlorobenzene ETO15 3.00 6.5 11 ND ND 07/19/22 10:13 BP 467655 Naphthalene ETO15 3.00 3.8 7.9 ND ND 07/19/22 10:13 BP 467655 (S) 4-Bromofluorobenzene ETO15 3.00 50 150 100 % 07/19/22 10:13 BP 467655 NOTE: Low canister pressure.

Total Page Count: 46 Page 29 of 46
Packet Page 2430

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12200
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 16:28
15799.004.000
Cedar Boulevard
SG-9
Sample Matrix: Air
Lab Sample ID: 2207125-013A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 1.00 1.6 2.5 ND ND 07/18/22 22:16 BP 467655 1,1-Difluoroethane ETO15 1.00 0.35 14 ND ND 07/18/22 22:16 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 1.00 1.4 3.5 ND ND 07/18/22 22:16 BP 467655 Chloromethane ETO15 1.00 2.0 4.1 ND ND 07/18/22 22:16 BP 467655 Vinyl Chloride ETO15 1.00 0.23 1.3 ND ND 07/18/22 22:16 BP 467655 1,3-Butadiene ETO15 1.00 0.34 1.1 ND ND 07/18/22 22:16 BP 467655 Bromomethane ETO15 1.00 0.66 1.9 ND ND 07/18/22 22:16 BP 467655 Chloroethane ETO15 1.00 0.81 1.3 ND ND 07/18/22 22:16 BP 467655 Trichlorofluoromethane ETO15 1.00 0.56 2.8 ND ND 07/18/22 22:16 BP 467655 1,1-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 07/18/22 22:16 BP 467655 Freon 113 ETO15 1.00 1.0 3.8 ND ND 07/18/22 22:16 BP 467655 Carbon Disulfide ETO15 1.00 0.37 1.6 3.9 1.25 07/18/22 22:16 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 1.00 1.3 12 18 7.32 07/18/22 22:16 BP 467655 Methylene Chloride ETO15 1.00 0.70 10 ND ND 07/18/22 22:16 BP 467655 Acetone ETO15 1.00 0.40 12 110 46.22 07/18/22 22:16 BP 467655 trans-1,2-Dichloroethene ETO15 1.00 0.48 2.0 ND ND 07/18/22 22:16 BP 467655 Hexane ETO15 1.00 0.46 1.8 ND ND 07/18/22 22:16 BP 467655 MTBE ETO15 1.00 0.44 1.8 ND ND 07/18/22 22:16 BP 467655 tert-Butanol ETO15 1.00 0.62 1.5 ND ND 07/18/22 22:16 BP 467655 Diisopropyl ether (DIPE) ETO15 1.00 0.74 2.1 ND ND 07/18/22 22:16 BP 467655 1,1-Dichloroethane ETO15 1.00 0.54 2.0 ND ND 07/18/22 22:16 BP 467655 ETBE ETO15 1.00 0.33 2.1 ND ND 07/18/22 22:16 BP 467655 cis-1,2-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 07/18/22 22:16 BP 467655 Chloroform ETO15 1.00 0.97 2.4 9.1 1.86 07/18/22 22:16 BP 467655 Vinyl Acetate ETO15 1.00 0.76 1.8 ND ND 07/18/22 22:16 BP 467655 Carbon Tetrachloride ETO15 1.00 1.1 3.1 ND ND 07/18/22 22:16 BP 467655 1,1,1-Trichloroethane ETO15 1.00 0.79 2.7 23 4.21 07/18/22 22:16 BP 467655 2-Butanone (MEK) ETO15 1.00 0.39 1.5 7.8 2.64 07/18/22 22:16 BP 467655 Ethyl Acetate ETO15 1.00 0.48 1.8 ND ND 07/18/22 22:16 BP 467655 Tetrahydrofuran ETO15 1.00 0.45 1.5 ND ND 07/18/22 22:16 BP 467655 Benzene ETO15 1.00 0.44 1.6 ND ND 07/18/22 22:16 BP 467655 TAME ETO15 1.00 0.67 2.1 ND ND 07/18/22 22:16 BP 467655 1,2-Dichloroethane (EDC) ETO15 1.00 0.42 2.0 ND ND 07/18/22 22:16 BP 467655 Trichloroethylene ETO15 1.00 0.81 2.7 ND ND 07/18/22 22:16 BP 467655 1,2-Dichloropropane ETO15 1.00 0.76 2.3 ND ND 07/18/22 22:16 BP 467655 Bromodichloromethane ETO15 1.00 0.74 3.4 ND ND 07/18/22 22:16 BP 467655 1,4-Dioxane ETO15 1.00 1.8 3.6 ND ND 07/18/22 22:16 BP 467655 Total Page Count: 46 Page 30 of 46
Packet Page 2431

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12200
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 16:28
15799.004.000
Cedar Boulevard
SG-9
Sample Matrix: Air
Lab Sample ID: 2207125-013A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 1.00 1.1 2.3 ND ND 07/18/22 22:16 BP 467655 Toluene ETO15 1.00 0.75 1.9 ND ND 07/18/22 22:16 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 1.00 0.75 2.1 ND ND 07/18/22 22:16 BP 467655 cis-1,3-Dichloropropene ETO15 1.00 0.42 2.3 ND ND 07/18/22 22:16 BP 467655 Tetrachloroethylene ETO15 1.00 1.5 3.4 46 6.78 07/18/22 22:16 BP 467655 1,1,2-Trichloroethane ETO15 1.00 0.58 2.7 ND ND 07/18/22 22:16 BP 467655 Dibromochloromethane ETO15 1.00 1.1 4.3 ND ND 07/18/22 22:16 BP 467655 1,2-Dibromoethane (EDB) ETO15 1.00 0.74 3.8 ND ND 07/18/22 22:16 BP 467655 2-Hexanone ETO15 1.00 0.65 2.1 ND ND 07/18/22 22:16 BP 467655 Ethyl Benzene ETO15 1.00 0.63 2.2 ND ND 07/18/22 22:16 BP 467655 Chlorobenzene ETO15 1.00 0.60 2.3 ND ND 07/18/22 22:16 BP 467655 1,1,1,2-Tetrachloroethane ETO15 1.00 0.84 3.4 ND ND 07/18/22 22:16 BP 467655 m,p-Xylene ETO15 1.00 0.98 2.2 ND ND 07/18/22 22:16 BP 467655 o-Xylene ETO15 1.00 0.30 2.2 ND ND 07/18/22 22:16 BP 467655 Styrene ETO15 1.00 0.46 2.1 ND ND 07/18/22 22:16 BP 467655 Bromoform ETO15 1.00 1.3 5.2 ND ND 07/18/22 22:16 BP 467655 1,1,2,2-Tetrachloroethane ETO15 1.00 0.82 3.4 ND ND 07/18/22 22:16 BP 467655 4-Ethyl Toluene ETO15 1.00 0.55 2.5 ND ND 07/18/22 22:16 BP 467655 1,3,5-Trimethylbenzene ETO15 1.00 0.30 2.5 ND ND 07/18/22 22:16 BP 467655 1,2,4-Trimethylbenzene ETO15 1.00 0.60 2.5 ND ND 07/18/22 22:16 BP 467655 1,4-Dichlorobenzene ETO15 1.00 0.75 3.0 ND ND 07/18/22 22:16 BP 467655 1,3-Dichlorobenzene ETO15 1.00 1.3 3.0 ND ND 07/18/22 22:16 BP 467655 1,2-Dichlorobenzene ETO15 1.00 1.1 3.0 ND ND 07/18/22 22:16 BP 467655 Hexachlorobutadiene ETO15 1.00 1.9 5.3 ND ND 07/18/22 22:16 BP 467655 1,2,4-Trichlorobenzene ETO15 1.00 2.2 3.7 ND ND 07/18/22 22:16 BP 467655 Naphthalene ETO15 1.00 1.3 2.6 ND ND 07/18/22 22:16 BP 467655 (S) 4-Bromofluorobenzene ETO15 1.00 50 150 90 % 07/18/22 22:16 BP 467655 Total Page Count: 46 Page 31 of 46
Packet Page 2432

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N1430
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 13:10
15799.004.000
Cedar Boulevard
SG-11
Sample Matrix: Air
Lab Sample ID: 2207125-014A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 3.00 4.7 7.4 ND ND 07/18/22 22:41 BP 467655 1,1-Difluoroethane ETO15 3.00 1.0 41 ND ND 07/18/22 22:41 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 3.00 4.2 10 ND ND 07/18/22 22:41 BP 467655 Chloromethane ETO15 3.00 6.1 12 ND ND 07/18/22 22:41 BP 467655 Vinyl Chloride ETO15 3.00 0.68 3.8 ND ND 07/18/22 22:41 BP 467655 1,3-Butadiene ETO15 3.00 1.0 3.3 ND ND 07/18/22 22:41 BP 467655 Bromomethane ETO15 3.00 2.0 5.8 ND ND 07/18/22 22:41 BP 467655 Chloroethane ETO15 3.00 2.4 4.0 ND ND 07/18/22 22:41 BP 467655 Trichlorofluoromethane ETO15 3.00 1.7 8.4 ND ND 07/18/22 22:41 BP 467655 1,1-Dichloroethene ETO15 3.00 2.5 6.0 ND ND 07/18/22 22:41 BP 467655 Freon 113 ETO15 3.00 3.1 11 ND ND 07/18/22 22:41 BP 467655 Carbon Disulfide ETO15 3.00 1.1 4.7 ND ND 07/18/22 22:41 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 3.00 3.8 37 ND ND 07/18/22 22:41 BP 467655 Methylene Chloride ETO15 3.00 2.1 31 ND ND 07/18/22 22:41 BP 467655 Acetone ETO15 3.00 1.2 36 ND ND 07/18/22 22:41 BP 467655 trans-1,2-Dichloroethene ETO15 3.00 1.4 5.9 ND ND 07/18/22 22:41 BP 467655 Hexane ETO15 3.00 1.4 5.3 ND ND 07/18/22 22:41 BP 467655 MTBE ETO15 3.00 1.3 5.4 ND ND 07/18/22 22:41 BP 467655
tert-Butanol ETO15 3.00 1.9 4.5 ND ND 07/18/22 22:41 BP 467655 Diisopropyl ether (DIPE) ETO15 3.00 2.2 6.3 ND ND 07/18/22 22:41 BP 467655 1,1-Dichloroethane ETO15 3.00 1.6 6.1 ND ND 07/18/22 22:41 BP 467655 ETBE ETO15 3.00 0.98 6.3 ND ND 07/18/22 22:41 BP 467655 cis-1,2-Dichloroethene ETO15 3.00 2.5 5.9 ND ND 07/18/22 22:41 BP 467655 Chloroform ETO15 3.00 2.9 7.3 ND ND 07/18/22 22:41 BP 467655 Vinyl Acetate ETO15 3.00 2.3 5.3 ND ND 07/18/22 22:41 BP 467655 Carbon Tetrachloride ETO15 3.00 3.3 9.4 ND ND 07/18/22 22:41 BP 467655 1,1,1-Trichloroethane ETO15 3.00 2.4 8.2 28 5.13 07/18/22 22:41 BP 467655 2-Butanone (MEK) ETO15 3.00 1.2 4.4 ND ND 07/18/22 22:41 BP 467655 Ethyl Acetate ETO15 3.00 1.4 5.4 ND ND 07/18/22 22:41 BP 467655 Tetrahydrofuran ETO15 3.00 1.3 4.4 ND ND 07/18/22 22:41 BP 467655 Benzene ETO15 3.00 1.3 4.8 ND ND 07/18/22 22:41 BP 467655 TAME ETO15 3.00 2.0 6.3 ND ND 07/18/22 22:41 BP 467655
1,2-Dichloroethane (EDC) ETO15 3.00 1.3 6.1 ND ND 07/18/22 22:41 BP 467655 Trichloroethylene ETO15 3.00 2.4 8.1 13 2.42 07/18/22 22:41 BP 467655 1,2-Dichloropropane ETO15 3.00 2.3 6.9 ND ND 07/18/22 22:41 BP 467655 Bromodichloromethane ETO15 3.00 2.2 10 ND ND 07/18/22 22:41 BP 467655 1,4-Dioxane ETO15 3.00 5.4 11 ND ND 07/18/22 22:41 BP 467655 Total Page Count: 46 Page 32 of 46
Packet Page 2433

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.5
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N1430
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 13:10
15799.004.000
Cedar Boulevard
SG-11
Sample Matrix: Air
Lab Sample ID: 2207125-014A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 3.00 3.2 6.8 ND ND 07/18/22 22:41 BP 467655 Toluene ETO15 3.00 2.3 5.7 ND ND 07/18/22 22:41 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 3.00 2.2 6.2 ND ND 07/18/22 22:41 BP 467655 cis-1,3-Dichloropropene ETO15 3.00 1.3 6.8 ND ND 07/18/22 22:41 BP 467655 1,1,2-Trichloroethane ETO15 3.00 1.8 8.2 ND ND 07/18/22 22:41 BP 467655 Dibromochloromethane ETO15 3.00 3.3 13 ND ND 07/18/22 22:41 BP 467655 1,2-Dibromoethane (EDB) ETO15 3.00 2.2 12 ND ND 07/18/22 22:41 BP 467655 2-Hexanone ETO15 3.00 2.0 6.2 ND ND 07/18/22 22:41 BP 467655 Ethyl Benzene ETO15 3.00 1.9 6.5 ND ND 07/18/22 22:41 BP 467655 Chlorobenzene ETO15 3.00 1.8 6.9 ND ND 07/18/22 22:41 BP 467655 1,1,1,2-Tetrachloroethane ETO15 3.00 2.5 10 ND ND 07/18/22 22:41 BP 467655 m,p-Xylene ETO15 3.00 2.9 6.5 ND ND 07/18/22 22:41 BP 467655 o-Xylene ETO15 3.00 0.91 6.5 ND ND 07/18/22 22:41 BP 467655 Styrene ETO15 3.00 1.4 6.4 ND ND 07/18/22 22:41 BP 467655 Bromoform ETO15 3.00 3.9 16 ND ND 07/18/22 22:41 BP 467655 1,1,2,2-Tetrachloroethane ETO15 3.00 2.5 10 ND ND 07/18/22 22:41 BP 467655 4-Ethyl Toluene ETO15 3.00 1.6 7.4 ND ND 07/18/22 22:41 BP 467655 1,3,5-Trimethylbenzene ETO15 3.00 0.90 7.4 ND ND 07/18/22 22:41 BP 467655 1,2,4-Trimethylbenzene ETO15 3.00 1.8 7.4 ND ND 07/18/22 22:41 BP 467655 1,4-Dichlorobenzene ETO15 3.00 2.2 9.0 ND ND 07/18/22 22:41 BP 467655 1,3-Dichlorobenzene ETO15 3.00 4.0 9.0 ND ND 07/18/22 22:41 BP 467655 1,2-Dichlorobenzene ETO15 3.00 3.2 9.0 ND ND 07/18/22 22:41 BP 467655 Hexachlorobutadiene ETO15 3.00 5.6 16 ND ND 07/18/22 22:41 BP 467655 1,2,4-Trichlorobenzene ETO15 3.00 6.5 11 ND ND 07/18/22 22:41 BP 467655 Naphthalene ETO15 3.00 3.8 7.9 ND ND 07/18/22 22:41 BP 467655 (S) 4-Bromofluorobenzene ETO15 3.00 50 150 90 % 07/18/22 22:41 BP 467655 Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Tetrachloroethylene ETO15 6.00 8.7 20 950 140.12 07/19/22 8:13 BP 467655 (S) 4-Bromofluorobenzene ETO15 6.00 50 150 94 % 07/19/22 8:13 BP 467655 Total Page Count: 46 Page 33 of 46
Packet Page 2434

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.0
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3947
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 13:55
15799.004.000
Cedar Boulevard
SG-12
Sample Matrix: Air
Lab Sample ID: 2207125-015A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 1.00 1.6 2.5 ND ND 07/18/22 23:09 BP 467655 1,1-Difluoroethane ETO15 1.00 0.35 14 ND ND 07/18/22 23:09 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 1.00 1.4 3.5 ND ND 07/18/22 23:09 BP 467655 Chloromethane ETO15 1.00 2.0 4.1 ND ND 07/18/22 23:09 BP 467655 Vinyl Chloride ETO15 1.00 0.23 1.3 ND ND 07/18/22 23:09 BP 467655 1,3-Butadiene ETO15 1.00 0.34 1.1 ND ND 07/18/22 23:09 BP 467655 Bromomethane ETO15 1.00 0.66 1.9 ND ND 07/18/22 23:09 BP 467655 Chloroethane ETO15 1.00 0.81 1.3 ND ND 07/18/22 23:09 BP 467655 Trichlorofluoromethane ETO15 1.00 0.56 2.8 ND ND 07/18/22 23:09 BP 467655 1,1-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 07/18/22 23:09 BP 467655 Freon 113 ETO15 1.00 1.0 3.8 ND ND 07/18/22 23:09 BP 467655 Carbon Disulfide ETO15 1.00 0.37 1.6 3.0 0.96 07/18/22 23:09 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 1.00 1.3 12 ND ND 07/18/22 23:09 BP 467655 Methylene Chloride ETO15 1.00 0.70 10 ND ND 07/18/22 23:09 BP 467655 Acetone ETO15 1.00 0.40 12 29 12.18 07/18/22 23:09 BP 467655 trans-1,2-Dichloroethene ETO15 1.00 0.48 2.0 ND ND 07/18/22 23:09 BP 467655 Hexane ETO15 1.00 0.46 1.8 ND ND 07/18/22 23:09 BP 467655 MTBE ETO15 1.00 0.44 1.8 ND ND 07/18/22 23:09 BP 467655 tert-Butanol ETO15 1.00 0.62 1.5 ND ND 07/18/22 23:09 BP 467655 Diisopropyl ether (DIPE) ETO15 1.00 0.74 2.1 ND ND 07/18/22 23:09 BP 467655 1,1-Dichloroethane ETO15 1.00 0.54 2.0 ND ND 07/18/22 23:09 BP 467655 ETBE ETO15 1.00 0.33 2.1 ND ND 07/18/22 23:09 BP 467655 cis-1,2-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 07/18/22 23:09 BP 467655 Chloroform ETO15 1.00 0.97 2.4 6.8 1.39 07/18/22 23:09 BP 467655 Vinyl Acetate ETO15 1.00 0.76 1.8 ND ND 07/18/22 23:09 BP 467655 Carbon Tetrachloride ETO15 1.00 1.1 3.1 ND ND 07/18/22 23:09 BP 467655 1,1,1-Trichloroethane ETO15 1.00 0.79 2.7 6.1 1.12 07/18/22 23:09 BP 467655 2-Butanone (MEK) ETO15 1.00 0.39 1.5 4.9 1.66 07/18/22 23:09 BP 467655 Ethyl Acetate ETO15 1.00 0.48 1.8 ND ND 07/18/22 23:09 BP 467655 Tetrahydrofuran ETO15 1.00 0.45 1.5 ND ND 07/18/22 23:09 BP 467655 Benzene ETO15 1.00 0.44 1.6 ND ND 07/18/22 23:09 BP 467655 TAME ETO15 1.00 0.67 2.1 ND ND 07/18/22 23:09 BP 467655 1,2-Dichloroethane (EDC) ETO15 1.00 0.42 2.0 ND ND 07/18/22 23:09 BP 467655 Trichloroethylene ETO15 1.00 0.81 2.7 ND ND 07/18/22 23:09 BP 467655 1,2-Dichloropropane ETO15 1.00 0.76 2.3 ND ND 07/18/22 23:09 BP 467655 Bromodichloromethane ETO15 1.00 0.74 3.4 ND ND 07/18/22 23:09 BP 467655 1,4-Dioxane ETO15 1.00 1.8 3.6 ND ND 07/18/22 23:09 BP 467655 Total Page Count: 46 Page 34 of 46
Packet Page 2435

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 13.0
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: N3947
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 13:55
15799.004.000
Cedar Boulevard
SG-12
Sample Matrix: Air
Lab Sample ID: 2207125-015A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 1.00 1.1 2.3 ND ND 07/18/22 23:09 BP 467655 Toluene ETO15 1.00 0.75 1.9 ND ND 07/18/22 23:09 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 1.00 0.75 2.1 ND ND 07/18/22 23:09 BP 467655 cis-1,3-Dichloropropene ETO15 1.00 0.42 2.3 ND ND 07/18/22 23:09 BP 467655 Tetrachloroethylene ETO15 1.00 1.5 3.4 67 9.88 07/18/22 23:09 BP 467655 1,1,2-Trichloroethane ETO15 1.00 0.58 2.7 ND ND 07/18/22 23:09 BP 467655 Dibromochloromethane ETO15 1.00 1.1 4.3 ND ND 07/18/22 23:09 BP 467655 1,2-Dibromoethane (EDB) ETO15 1.00 0.74 3.8 ND ND 07/18/22 23:09 BP 467655 2-Hexanone ETO15 1.00 0.65 2.1 ND ND 07/18/22 23:09 BP 467655 Ethyl Benzene ETO15 1.00 0.63 2.2 ND ND 07/18/22 23:09 BP 467655 Chlorobenzene ETO15 1.00 0.60 2.3 ND ND 07/18/22 23:09 BP 467655 1,1,1,2-Tetrachloroethane ETO15 1.00 0.84 3.4 ND ND 07/18/22 23:09 BP 467655 m,p-Xylene ETO15 1.00 0.98 2.2 ND ND 07/18/22 23:09 BP 467655 o-Xylene ETO15 1.00 0.30 2.2 ND ND 07/18/22 23:09 BP 467655 Styrene ETO15 1.00 0.46 2.1 ND ND 07/18/22 23:09 BP 467655 Bromoform ETO15 1.00 1.3 5.2 ND ND 07/18/22 23:09 BP 467655 1,1,2,2-Tetrachloroethane ETO15 1.00 0.82 3.4 ND ND 07/18/22 23:09 BP 467655 4-Ethyl Toluene ETO15 1.00 0.55 2.5 ND ND 07/18/22 23:09 BP 467655 1,3,5-Trimethylbenzene ETO15 1.00 0.30 2.5 ND ND 07/18/22 23:09 BP 467655 1,2,4-Trimethylbenzene ETO15 1.00 0.60 2.5 ND ND 07/18/22 23:09 BP 467655 1,4-Dichlorobenzene ETO15 1.00 0.75 3.0 ND ND 07/18/22 23:09 BP 467655 1,3-Dichlorobenzene ETO15 1.00 1.3 3.0 ND ND 07/18/22 23:09 BP 467655 1,2-Dichlorobenzene ETO15 1.00 1.1 3.0 ND ND 07/18/22 23:09 BP 467655 Hexachlorobutadiene ETO15 1.00 1.9 5.3 6.8 0.64 07/18/22 23:09 BP 467655 1,2,4-Trichlorobenzene ETO15 1.00 2.2 3.7 ND ND 07/18/22 23:09 BP 467655 Naphthalene ETO15 1.00 1.3 2.6 ND ND 07/18/22 23:09 BP 467655 (S) 4-Bromofluorobenzene ETO15 1.00 50 150 94 % 07/18/22 23:09 BP 467655 Total Page Count: 46 Page 35 of 46
Packet Page 2436

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12193
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 14:10
15799.004.000
Cedar Boulevard
SG-13
Sample Matrix: Air
Lab Sample ID: 2207125-016A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
Dichlorodifluoromethane ETO15 1.00 1.6 2.5 ND ND 07/18/22 23:43 BP 467655 1,1-Difluoroethane ETO15 1.00 0.35 14 ND ND 07/18/22 23:43 BP 467655 1,2-Dichlorotetrafluoroethane ETO15 1.00 1.4 3.5 ND ND 07/18/22 23:43 BP 467655 Chloromethane ETO15 1.00 2.0 4.1 ND ND 07/18/22 23:43 BP 467655 Vinyl Chloride ETO15 1.00 0.23 1.3 ND ND 07/18/22 23:43 BP 467655 1,3-Butadiene ETO15 1.00 0.34 1.1 ND ND 07/18/22 23:43 BP 467655 Bromomethane ETO15 1.00 0.66 1.9 ND ND 07/18/22 23:43 BP 467655 Chloroethane ETO15 1.00 0.81 1.3 ND ND 07/18/22 23:43 BP 467655 Trichlorofluoromethane ETO15 1.00 0.56 2.8 ND ND 07/18/22 23:43 BP 467655 1,1-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 07/18/22 23:43 BP 467655 Freon 113 ETO15 1.00 1.0 3.8 ND ND 07/18/22 23:43 BP 467655 Carbon Disulfide ETO15 1.00 0.37 1.6 1.6 0.51 07/18/22 23:43 BP 467655 2-Propanol (Isopropyl Alcohol) ETO15 1.00 1.3 12 ND ND 07/18/22 23:43 BP 467655 Methylene Chloride ETO15 1.00 0.70 10 ND ND 07/18/22 23:43 BP 467655 Acetone ETO15 1.00 0.40 12 54 22.69 07/18/22 23:43 BP 467655 trans-1,2-Dichloroethene ETO15 1.00 0.48 2.0 ND ND 07/18/22 23:43 BP 467655 Hexane ETO15 1.00 0.46 1.8 ND ND 07/18/22 23:43 BP 467655 MTBE ETO15 1.00 0.44 1.8 ND ND 07/18/22 23:43 BP 467655 tert-Butanol ETO15 1.00 0.62 1.5 ND ND 07/18/22 23:43 BP 467655 Diisopropyl ether (DIPE) ETO15 1.00 0.74 2.1 ND ND 07/18/22 23:43 BP 467655 1,1-Dichloroethane ETO15 1.00 0.54 2.0 2.3 0.57 07/18/22 23:43 BP 467655 ETBE ETO15 1.00 0.33 2.1 ND ND 07/18/22 23:43 BP 467655 cis-1,2-Dichloroethene ETO15 1.00 0.83 2.0 ND ND 07/18/22 23:43 BP 467655 Chloroform ETO15 1.00 0.97 2.4 ND ND 07/18/22 23:43 BP 467655 Vinyl Acetate ETO15 1.00 0.76 1.8 ND ND 07/18/22 23:43 BP 467655 Carbon Tetrachloride ETO15 1.00 1.1 3.1 ND ND 07/18/22 23:43 BP 467655 1,1,1-Trichloroethane ETO15 1.00 0.79 2.7 ND ND 07/18/22 23:43 BP 467655 2-Butanone (MEK) ETO15 1.00 0.39 1.5 4.9 1.66 07/18/22 23:43 BP 467655 Ethyl Acetate ETO15 1.00 0.48 1.8 ND ND 07/18/22 23:43 BP 467655 Tetrahydrofuran ETO15 1.00 0.45 1.5 ND ND 07/18/22 23:43 BP 467655 Benzene ETO15 1.00 0.44 1.6 ND ND 07/18/22 23:43 BP 467655 TAME ETO15 1.00 0.67 2.1 ND ND 07/18/22 23:43 BP 467655 1,2-Dichloroethane (EDC) ETO15 1.00 0.42 2.0 ND ND 07/18/22 23:43 BP 467655 Trichloroethylene ETO15 1.00 0.81 2.7 ND ND 07/18/22 23:43 BP 467655 1,2-Dichloropropane ETO15 1.00 0.76 2.3 ND ND 07/18/22 23:43 BP 467655 Bromodichloromethane ETO15 1.00 0.74 3.4 ND ND 07/18/22 23:43 BP 467655 1,4-Dioxane ETO15 1.00 1.8 3.6 ND ND 07/18/22 23:43 BP 467655 Total Page Count: 46 Page 36 of 46
Packet Page 2437

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:37 pm
Engeo (San Ramon)
Monica Kunzel
Corrected PSI :

Received PSI : 11.9
Certified Clean WO # :

Collection Volume (L):

Canister/Tube ID: A12193
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 14:10
15799.004.000
Cedar Boulevard
SG-13
Sample Matrix: Air
Lab Sample ID: 2207125-016A
SDG:

Prep Batch ID: 1143357
Prep Batch Date/Time: 7/18/22 12:00:00PM
Prep Analyst: BPATEL
Prep Method: TO15-P
Parameters: Q
Results
ug/m3
PQL
ug/m3
MDL
ug/m3
DF
Analyzed
Analysis
Method
Results
ppbv Time By
Analytical
Batch
trans-1,3-Dichloropropene ETO15 1.00 1.1 2.3 ND ND 07/18/22 23:43 BP 467655 Toluene ETO15 1.00 0.75 1.9 ND ND 07/18/22 23:43 BP 467655 4-Methyl-2-Pentanone (MIBK) ETO15 1.00 0.75 2.1 ND ND 07/18/22 23:43 BP 467655 cis-1,3-Dichloropropene ETO15 1.00 0.42 2.3 ND ND 07/18/22 23:43 BP 467655 Tetrachloroethylene ETO15 1.00 1.5 3.4 55 8.11 07/18/22 23:43 BP 467655 1,1,2-Trichloroethane ETO15 1.00 0.58 2.7 ND ND 07/18/22 23:43 BP 467655 Dibromochloromethane ETO15 1.00 1.1 4.3 ND ND 07/18/22 23:43 BP 467655 1,2-Dibromoethane (EDB) ETO15 1.00 0.74 3.8 ND ND 07/18/22 23:43 BP 467655 2-Hexanone ETO15 1.00 0.65 2.1 ND ND 07/18/22 23:43 BP 467655 Ethyl Benzene ETO15 1.00 0.63 2.2 ND ND 07/18/22 23:43 BP 467655 Chlorobenzene ETO15 1.00 0.60 2.3 ND ND 07/18/22 23:43 BP 467655 1,1,1,2-Tetrachloroethane ETO15 1.00 0.84 3.4 ND ND 07/18/22 23:43 BP 467655 m,p-Xylene ETO15 1.00 0.98 2.2 ND ND 07/18/22 23:43 BP 467655 o-Xylene ETO15 1.00 0.30 2.2 ND ND 07/18/22 23:43 BP 467655 Styrene ETO15 1.00 0.46 2.1 ND ND 07/18/22 23:43 BP 467655 Bromoform ETO15 1.00 1.3 5.2 ND ND 07/18/22 23:43 BP 467655 1,1,2,2-Tetrachloroethane ETO15 1.00 0.82 3.4 ND ND 07/18/22 23:43 BP 467655 4-Ethyl Toluene ETO15 1.00 0.55 2.5 ND ND 07/18/22 23:43 BP 467655 1,3,5-Trimethylbenzene ETO15 1.00 0.30 2.5 ND ND 07/18/22 23:43 BP 467655 1,2,4-Trimethylbenzene ETO15 1.00 0.60 2.5 ND ND 07/18/22 23:43 BP 467655 1,4-Dichlorobenzene ETO15 1.00 0.75 3.0 ND ND 07/18/22 23:43 BP 467655 1,3-Dichlorobenzene ETO15 1.00 1.3 3.0 ND ND 07/18/22 23:43 BP 467655 1,2-Dichlorobenzene ETO15 1.00 1.1 3.0 ND ND 07/18/22 23:43 BP 467655 Hexachlorobutadiene ETO15 1.00 1.9 5.3 ND ND 07/18/22 23:43 BP 467655 1,2,4-Trichlorobenzene ETO15 1.00 2.2 3.7 ND ND 07/18/22 23:43 BP 467655 Naphthalene ETO15 1.00 1.3 2.6 ND ND 07/18/22 23:43 BP 467655 (S) 4-Bromofluorobenzene ETO15 1.00 50 150 95 % 07/18/22 23:43 BP 467655 Total Page Count: 46 Page 37 of 46
Packet Page 2438

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:43 pm
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 10:23
15799.004.000
Cedar Boulevard
MW-3
Sample Matrix: Groundwater
Lab Sample ID: 2207124-001A
SDG:

Prep Batch ID: 1143326
Prep Batch Date/Time: 7/18/22 11:17:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Dichlorodifluoromethane SW8260B 1 ug/L 467617 0.26 0.50 ND 07/18/22 16:30 JZ Chloromethane SW8260B 1 0.17 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Vinyl Chloride SW8260B 1 0.21 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Bromomethane SW8260B 1 0.21 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Chloroethane SW8260B 1 0.11 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Trichlorofluoromethane SW8260B 1 0.19 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,1-Dichloroethene SW8260B 1 0.14 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Freon 113 SW8260B 1 0.34 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Methylene Chloride SW8260B 1 0.13 1.0 ND ug/L 07/18/22 16:30 JZ 467617 trans-1,2-Dichloroethene SW8260B 1 0.16 0.50 ND ug/L 07/18/22 16:30 JZ 467617 MTBE SW8260B 1 0.077 0.50 ND ug/L 07/18/22 16:30 JZ 467617 tert-Butanol SW8260B 1 2.9 5.0 ND ug/L 07/18/22 16:30 JZ 467617 DIPE SW8260B 1 0.12 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,1-Dichloroethane SW8260B 1 0.12 0.50 ND ug/L 07/18/22 16:30 JZ 467617 ETBE SW8260B 1 0.064 0.50 ND ug/L 07/18/22 16:30 JZ 467617 cis-1,2-Dichloroethene SW8260B 1 0.15 0.50 ND ug/L 07/18/22 16:30 JZ 467617 2,2-Dichloropropane SW8260B 1 0.094 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Bromochloromethane SW8260B 1 0.15 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Chloroform SW8260B 1 0.12 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Carbon Tetrachloride SW8260B 1 0.16 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,1,1-Trichloroethane SW8260B 1 0.16 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,1-Dichloropropene SW8260B 1 0.19 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Benzene SW8260B 1 0.065 0.50 ND ug/L 07/18/22 16:30 JZ 467617 TAME SW8260B 1 0.072 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,2-Dichloroethane SW8260B 1 0.11 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Trichloroethylene SW8260B 1 0.15 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Dibromomethane SW8260B 1 0.11 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,2-Dichloropropane SW8260B 1 0.089 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Bromodichloromethane SW8260B 1 0.076 0.50 ND ug/L 07/18/22 16:30 JZ 467617 cis-1,3-Dichloropropene SW8260B 1 0.078 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Toluene SW8260B 1 0.14 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Tetrachloroethylene SW8260B 1 0.24 0.50 ND ug/L 07/18/22 16:30 JZ 467617 trans-1,3-Dichloropropene SW8260B 1 0.22 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,1,2-Trichloroethane SW8260B 1 0.076 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Dibromochloromethane SW8260B 1 0.18 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,3-Dichloropropane SW8260B 1 0.22 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,2-Dibromoethane SW8260B 1 0.079 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Chlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Ethylbenzene SW8260B 1 0.20 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Total Page Count: 14 Page 4 of 14
Packet Page 2439

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:43 pm
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 10:23
15799.004.000
Cedar Boulevard
MW-3
Sample Matrix: Groundwater
Lab Sample ID: 2207124-001A
SDG:

Prep Batch ID: 1143326
Prep Batch Date/Time: 7/18/22 11:17:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
1,1,1,2-Tetrachloroethane SW8260B 1 ug/L 467617 0.087 0.50 ND 07/18/22 16:30 JZ m,p-Xylene SW8260B 1 0.39 1.0 ND ug/L 07/18/22 16:30 JZ 467617 o-Xylene SW8260B 1 0.15 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Styrene SW8260B 1 0.11 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Bromoform SW8260B 1 0.076 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Isopropyl Benzene SW8260B 1 0.22 0.50 ND ug/L 07/18/22 16:30 JZ 467617 n-Propylbenzene SW8260B 1 0.30 0.50 ND ug/L 07/18/22 16:30 JZ 467617 Bromobenzene SW8260B 1 0.15 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,1,2,2-Tetrachloroethane SW8260B 1 0.079 0.50 ND ug/L 07/18/22 16:30 JZ 467617 2-Chlorotoluene SW8260B 1 0.25 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,3,5-Trimethylbenzene SW8260B 1 0.24 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,2,3-Trichloropropane SW8260B 1 0.15 0.50 ND ug/L 07/18/22 16:30 JZ 467617 4-Chlorotoluene SW8260B 1 0.22 0.50 ND ug/L 07/18/22 16:30 JZ 467617 tert-Butylbenzene SW8260B 1 0.26 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,2,4-Trimethylbenzene SW8260B 1 0.23 0.50 ND ug/L 07/18/22 16:30 JZ 467617 sec-Butyl Benzene SW8260B 1 0.30 0.50 ND ug/L 07/18/22 16:30 JZ 467617 p-Isopropyltoluene SW8260B 1 0.27 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,3-Dichlorobenzene SW8260B 1 0.17 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,4-Dichlorobenzene SW8260B 1 0.18 0.50 ND ug/L 07/18/22 16:30 JZ 467617 n-Butylbenzene SW8260B 1 0.27 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,2-Dichlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/18/22 16:30 JZ 467617 1,2-Dibromo-3-Chloropropane SW8260B 1 0.76 2.0 ND ug/L 07/18/22 16:30 JZ 467617 Hexachlorobutadiene SW8260B 1 0.62 2.0 ND ug/L 07/18/22 16:30 JZ 467617 1,2,4-Trichlorobenzene SW8260B 1 0.93 2.0 ND ug/L 07/18/22 16:30 JZ 467617 Naphthalene SW8260B 1 1.2 2.0 ND ug/L 07/18/22 16:30 JZ 467617 1,2,3-Trichlorobenzene SW8260B 1 1.2 2.0 ND ug/L 07/18/22 16:30 JZ 467617 (S) Dibromofluoromethane SW8260B 61.2 - 131 118 % 07/18/22 16:30 JZ 467617 (S) Toluene-d8 SW8260B 75.1 - 127 97.1 % 07/18/22 16:30 JZ 467617 (S) 4-Bromofluorobenzene SW8260B 64.1 - 120 101 % 07/18/22 16:30 JZ 467617 Total Page Count: 14 Page 5 of 14
Packet Page 2440

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:43 pm
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 10:23
15799.004.000
Cedar Boulevard
MW-3
Sample Matrix: Groundwater
Lab Sample ID: 2207124-001A
SDG:

Prep Batch ID: 1143327
Prep Batch Date/Time: 7/18/22 11:17:00AM
Prep Analyst: JZHAO
Prep Method: 5030GRO
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH Gasoline 8260TPH 1 ug/L 467617 29 50 ND 07/18/22 16:30 JZ (S) 4-Bromofluorobenzene 8260TPH 41.5 - 125 72.4 % 07/18/22 16:30 JZ 467617 Total Page Count: 14 Page 6 of 14
Packet Page 2441

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 5:43 pm
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/15/22 / 10:23
15799.004.000
Cedar Boulevard
MW-3
Sample Matrix: Groundwater
Lab Sample ID: 2207124-001B
SDG:

Prep Batch ID: 1143299
Prep Batch Date/Time: 7/19/22 9:23:00AM
Prep Analyst: AKIZ
Prep Method: 3510_TPH SG
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH as Diesel (SG) SW8015B 1 mg/L 467715 0.037 0.10 ND 07/19/22 21:03 SN TPH as Motor Oil (SG) SW8015B 1 0.11 0.40 ND mg/L 07/19/22 21:03 SN 467715 Acceptance Limits
Pentacosane (S) SW8015B 40 - 129 40.4 % 07/19/22 21:03 SN 467715 Total Page Count: 14 Page 7 of 14
Packet Page 2442

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 10:10
15799.004.000
Cedar Boulevard
MW-1
Sample Matrix: Groundwater
Lab Sample ID: 2207108-001A
SDG:

Prep Batch ID: 1143254
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Dichlorodifluoromethane SW8260B 1 ug/L 467555 0.26 0.50 ND 07/15/22 19:58 JZ Chloromethane SW8260B 1 0.17 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Vinyl Chloride SW8260B 1 0.21 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Bromomethane SW8260B 1 0.21 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Chloroethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Trichlorofluoromethane SW8260B 1 0.19 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,1-Dichloroethene SW8260B 1 0.14 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Freon 113 SW8260B 1 0.34 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Methylene Chloride SW8260B 1 0.13 1.0 ND ug/L 07/15/22 19:58 JZ 467555 trans-1,2-Dichloroethene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 19:58 JZ 467555 MTBE SW8260B 1 0.077 0.50 ND ug/L 07/15/22 19:58 JZ 467555 tert-Butanol SW8260B 1 2.9 5.0 ND ug/L 07/15/22 19:58 JZ 467555 DIPE SW8260B 1 0.12 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,1-Dichloroethane SW8260B 1 0.12 0.50 3.3 ug/L 07/15/22 19:58 JZ 467555 ETBE SW8260B 1 0.064 0.50 ND ug/L 07/15/22 19:58 JZ 467555 cis-1,2-Dichloroethene SW8260B 1 0.15 0.50 19 ug/L 07/15/22 19:58 JZ 467555 2,2-Dichloropropane SW8260B 1 0.094 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Bromochloromethane SW8260B 1 0.15 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Chloroform SW8260B 1 0.12 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Carbon Tetrachloride SW8260B 1 0.16 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,1,1-Trichloroethane SW8260B 1 0.16 0.50 3.8 ug/L 07/15/22 19:58 JZ 467555 1,1-Dichloropropene SW8260B 1 0.19 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Benzene SW8260B 1 0.065 0.50 ND ug/L 07/15/22 19:58 JZ 467555 TAME SW8260B 1 0.072 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,2-Dichloroethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Trichloroethylene SW8260B 1 0.15 0.50 3.1 ug/L 07/15/22 19:58 JZ 467555 Dibromomethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,2-Dichloropropane SW8260B 1 0.089 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Bromodichloromethane SW8260B 1 0.076 0.50 ND ug/L 07/15/22 19:58 JZ 467555 cis-1,3-Dichloropropene SW8260B 1 0.078 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Toluene SW8260B 1 0.14 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Tetrachloroethylene SW8260B 1 0.24 0.50 32 ug/L 07/15/22 19:58 JZ 467555 trans-1,3-Dichloropropene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,1,2-Trichloroethane SW8260B 1 0.076 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Dibromochloromethane SW8260B 1 0.18 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,3-Dichloropropane SW8260B 1 0.22 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,2-Dibromoethane SW8260B 1 0.079 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Chlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Ethylbenzene SW8260B 1 0.20 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Total Page Count: 34 Page 4 of 34
Packet Page 2443

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 10:10
15799.004.000
Cedar Boulevard
MW-1
Sample Matrix: Groundwater
Lab Sample ID: 2207108-001A
SDG:

Prep Batch ID: 1143254
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
1,1,1,2-Tetrachloroethane SW8260B 1 ug/L 467555 0.087 0.50 ND 07/15/22 19:58 JZ m,p-Xylene SW8260B 1 0.39 1.0 ND ug/L 07/15/22 19:58 JZ 467555 o-Xylene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Styrene SW8260B 1 0.11 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Bromoform SW8260B 1 0.076 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Isopropyl Benzene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 19:58 JZ 467555 n-Propylbenzene SW8260B 1 0.30 0.50 ND ug/L 07/15/22 19:58 JZ 467555 Bromobenzene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,1,2,2-Tetrachloroethane SW8260B 1 0.079 0.50 ND ug/L 07/15/22 19:58 JZ 467555 2-Chlorotoluene SW8260B 1 0.25 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,3,5-Trimethylbenzene SW8260B 1 0.24 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,2,3-Trichloropropane SW8260B 1 0.15 0.50 ND ug/L 07/15/22 19:58 JZ 467555 4-Chlorotoluene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 19:58 JZ 467555 tert-Butylbenzene SW8260B 1 0.26 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,2,4-Trimethylbenzene SW8260B 1 0.23 0.50 ND ug/L 07/15/22 19:58 JZ 467555 sec-Butyl Benzene SW8260B 1 0.30 0.50 ND ug/L 07/15/22 19:58 JZ 467555 p-Isopropyltoluene SW8260B 1 0.27 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,3-Dichlorobenzene SW8260B 1 0.17 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,4-Dichlorobenzene SW8260B 1 0.18 0.50 ND ug/L 07/15/22 19:58 JZ 467555 n-Butylbenzene SW8260B 1 0.27 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,2-Dichlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 19:58 JZ 467555 1,2-Dibromo-3-Chloropropane SW8260B 1 0.76 2.0 ND ug/L 07/15/22 19:58 JZ 467555 Hexachlorobutadiene SW8260B 1 0.62 2.0 ND ug/L 07/15/22 19:58 JZ 467555 1,2,4-Trichlorobenzene SW8260B 1 0.93 2.0 ND ug/L 07/15/22 19:58 JZ 467555 Naphthalene SW8260B 1 1.2 2.0 ND ug/L 07/15/22 19:58 JZ 467555 1,2,3-Trichlorobenzene SW8260B 1 1.2 2.0 ND ug/L 07/15/22 19:58 JZ 467555 (S) Dibromofluoromethane SW8260B 61.2 - 131 120 % 07/15/22 19:58 JZ 467555 (S) Toluene-d8 SW8260B 75.1 - 127 95.5 % 07/15/22 19:58 JZ 467555 (S) 4-Bromofluorobenzene SW8260B 64.1 - 120 105 % 07/15/22 19:58 JZ 467555 Total Page Count: 34 Page 5 of 34
Packet Page 2444

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 10:10
15799.004.000
Cedar Boulevard
MW-1
Sample Matrix: Groundwater
Lab Sample ID: 2207108-001A
SDG:

Prep Batch ID: 1143255
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030GRO
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH Gasoline 8260TPH 1 ug/L 467555 29 50 136 x 07/15/22 19:58 JZ (S) 4-Bromofluorobenzene 8260TPH 41.5 - 125 91.1 % 07/15/22 19:58 JZ 467555 NOTE: Reported TPH value includes amount due to discrete peak (cis-1,2DCE, TCE and PCE).

Total Page Count: 34 Page 6 of 34
Packet Page 2445

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 10:10
15799.004.000
Cedar Boulevard
MW-1
Sample Matrix: Groundwater
Lab Sample ID: 2207108-001B
SDG:

Prep Batch ID: 1143299
Prep Batch Date/Time: 7/19/22 9:23:00AM
Prep Analyst: AKIZ
Prep Method: 3510_TPH SG
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH as Diesel (SG) SW8015B 1 mg/L 467715 0.037 0.10 ND 07/19/22 18:40 SN TPH as Motor Oil (SG) SW8015B 1 0.11 0.40 ND mg/L 07/19/22 18:40 SN 467715 Acceptance Limits
Pentacosane (S) SW8015B 40 - 129 82.6 % 07/19/22 18:40 SN 467715 Total Page Count: 34 Page 7 of 34
Packet Page 2446

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 12:20
15799.004.000
Cedar Boulevard
MW-2
Sample Matrix: Groundwater
Lab Sample ID: 2207108-002A
SDG:

Prep Batch ID: 1143254
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Dichlorodifluoromethane SW8260B 1 ug/L 467555 0.26 0.50 ND 07/15/22 20:28 JZ Chloromethane SW8260B 1 0.17 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Vinyl Chloride SW8260B 1 0.21 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Bromomethane SW8260B 1 0.21 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Chloroethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Trichlorofluoromethane SW8260B 1 0.19 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,1-Dichloroethene SW8260B 1 0.14 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Freon 113 SW8260B 1 0.34 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Methylene Chloride SW8260B 1 0.13 1.0 ND ug/L 07/15/22 20:28 JZ 467555 trans-1,2-Dichloroethene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 20:28 JZ 467555 MTBE SW8260B 1 0.077 0.50 ND ug/L 07/15/22 20:28 JZ 467555 tert-Butanol SW8260B 1 2.9 5.0 ND ug/L 07/15/22 20:28 JZ 467555 DIPE SW8260B 1 0.12 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,1-Dichloroethane SW8260B 1 0.12 0.50 ND ug/L 07/15/22 20:28 JZ 467555 ETBE SW8260B 1 0.064 0.50 ND ug/L 07/15/22 20:28 JZ 467555 cis-1,2-Dichloroethene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 20:28 JZ 467555 2,2-Dichloropropane SW8260B 1 0.094 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Bromochloromethane SW8260B 1 0.15 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Chloroform SW8260B 1 0.12 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Carbon Tetrachloride SW8260B 1 0.16 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,1,1-Trichloroethane SW8260B 1 0.16 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,1-Dichloropropene SW8260B 1 0.19 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Benzene SW8260B 1 0.065 0.50 ND ug/L 07/15/22 20:28 JZ 467555 TAME SW8260B 1 0.072 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,2-Dichloroethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Trichloroethylene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Dibromomethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,2-Dichloropropane SW8260B 1 0.089 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Bromodichloromethane SW8260B 1 0.076 0.50 ND ug/L 07/15/22 20:28 JZ 467555 cis-1,3-Dichloropropene SW8260B 1 0.078 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Toluene SW8260B 1 0.14 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Tetrachloroethylene SW8260B 1 0.24 0.50 ND ug/L 07/15/22 20:28 JZ 467555 trans-1,3-Dichloropropene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,1,2-Trichloroethane SW8260B 1 0.076 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Dibromochloromethane SW8260B 1 0.18 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,3-Dichloropropane SW8260B 1 0.22 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,2-Dibromoethane SW8260B 1 0.079 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Chlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Ethylbenzene SW8260B 1 0.20 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Total Page Count: 34 Page 8 of 34
Packet Page 2447

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 12:20
15799.004.000
Cedar Boulevard
MW-2
Sample Matrix: Groundwater
Lab Sample ID: 2207108-002A
SDG:

Prep Batch ID: 1143254
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
1,1,1,2-Tetrachloroethane SW8260B 1 ug/L 467555 0.087 0.50 ND 07/15/22 20:28 JZ m,p-Xylene SW8260B 1 0.39 1.0 ND ug/L 07/15/22 20:28 JZ 467555 o-Xylene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Styrene SW8260B 1 0.11 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Bromoform SW8260B 1 0.076 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Isopropyl Benzene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 20:28 JZ 467555 n-Propylbenzene SW8260B 1 0.30 0.50 ND ug/L 07/15/22 20:28 JZ 467555 Bromobenzene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,1,2,2-Tetrachloroethane SW8260B 1 0.079 0.50 ND ug/L 07/15/22 20:28 JZ 467555 2-Chlorotoluene SW8260B 1 0.25 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,3,5-Trimethylbenzene SW8260B 1 0.24 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,2,3-Trichloropropane SW8260B 1 0.15 0.50 ND ug/L 07/15/22 20:28 JZ 467555 4-Chlorotoluene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 20:28 JZ 467555 tert-Butylbenzene SW8260B 1 0.26 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,2,4-Trimethylbenzene SW8260B 1 0.23 0.50 ND ug/L 07/15/22 20:28 JZ 467555 sec-Butyl Benzene SW8260B 1 0.30 0.50 ND ug/L 07/15/22 20:28 JZ 467555 p-Isopropyltoluene SW8260B 1 0.27 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,3-Dichlorobenzene SW8260B 1 0.17 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,4-Dichlorobenzene SW8260B 1 0.18 0.50 ND ug/L 07/15/22 20:28 JZ 467555 n-Butylbenzene SW8260B 1 0.27 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,2-Dichlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 20:28 JZ 467555 1,2-Dibromo-3-Chloropropane SW8260B 1 0.76 2.0 ND ug/L 07/15/22 20:28 JZ 467555 Hexachlorobutadiene SW8260B 1 0.62 2.0 ND ug/L 07/15/22 20:28 JZ 467555 1,2,4-Trichlorobenzene SW8260B 1 0.93 2.0 ND ug/L 07/15/22 20:28 JZ 467555 Naphthalene SW8260B 1 1.2 2.0 ND ug/L 07/15/22 20:28 JZ 467555 1,2,3-Trichlorobenzene SW8260B 1 1.2 2.0 ND ug/L 07/15/22 20:28 JZ 467555 (S) Dibromofluoromethane SW8260B 61.2 - 131 120 % 07/15/22 20:28 JZ 467555 (S) Toluene-d8 SW8260B 75.1 - 127 98.3 % 07/15/22 20:28 JZ 467555 (S) 4-Bromofluorobenzene SW8260B 64.1 - 120 107 % 07/15/22 20:28 JZ 467555 Total Page Count: 34 Page 9 of 34
Packet Page 2448

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 12:20
15799.004.000
Cedar Boulevard
MW-2
Sample Matrix: Groundwater
Lab Sample ID: 2207108-002A
SDG:

Prep Batch ID: 1143255
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030GRO
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH Gasoline 8260TPH 1 ug/L 467555 29 50 ND 07/15/22 20:28 JZ (S) 4-Bromofluorobenzene 8260TPH 41.5 - 125 82.5 % 07/15/22 20:28 JZ 467555 Total Page Count: 34 Page 10 of 34
Packet Page 2449

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 12:20
15799.004.000
Cedar Boulevard
MW-2
Sample Matrix: Groundwater
Lab Sample ID: 2207108-002B
SDG:

Prep Batch ID: 1143299
Prep Batch Date/Time: 7/19/22 9:23:00AM
Prep Analyst: AKIZ
Prep Method: 3510_TPH SG
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH as Diesel (SG) SW8015B 1 mg/L 467715 0.037 0.10 ND 07/19/22 19:04 SN TPH as Motor Oil (SG) SW8015B 1 0.11 0.40 ND mg/L 07/19/22 19:04 SN 467715 Acceptance Limits
Pentacosane (S) SW8015B 40 - 129 76.6 % 07/19/22 19:04 SN 467715 Total Page Count: 34 Page 11 of 34
Packet Page 2450

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 13:45
15799.004.000
Cedar Boulevard
MW-4
Sample Matrix: Groundwater
Lab Sample ID: 2207108-003A
SDG:

Prep Batch ID: 1143254
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Dichlorodifluoromethane SW8260B 1 ug/L 467555 0.26 0.50 ND 07/15/22 20:58 JZ Chloromethane SW8260B 1 0.17 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Vinyl Chloride SW8260B 1 0.21 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Bromomethane SW8260B 1 0.21 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Chloroethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Trichlorofluoromethane SW8260B 1 0.19 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,1-Dichloroethene SW8260B 1 0.14 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Freon 113 SW8260B 1 0.34 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Methylene Chloride SW8260B 1 0.13 1.0 ND ug/L 07/15/22 20:58 JZ 467555 trans-1,2-Dichloroethene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 20:58 JZ 467555 MTBE SW8260B 1 0.077 0.50 ND ug/L 07/15/22 20:58 JZ 467555 tert-Butanol SW8260B 1 2.9 5.0 ND ug/L 07/15/22 20:58 JZ 467555 DIPE SW8260B 1 0.12 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,1-Dichloroethane SW8260B 1 0.12 0.50 ND ug/L 07/15/22 20:58 JZ 467555 ETBE SW8260B 1 0.064 0.50 ND ug/L 07/15/22 20:58 JZ 467555 cis-1,2-Dichloroethene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 20:58 JZ 467555 2,2-Dichloropropane SW8260B 1 0.094 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Bromochloromethane SW8260B 1 0.15 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Chloroform SW8260B 1 0.12 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Carbon Tetrachloride SW8260B 1 0.16 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,1,1-Trichloroethane SW8260B 1 0.16 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,1-Dichloropropene SW8260B 1 0.19 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Benzene SW8260B 1 0.065 0.50 ND ug/L 07/15/22 20:58 JZ 467555 TAME SW8260B 1 0.072 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,2-Dichloroethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Trichloroethylene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Dibromomethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,2-Dichloropropane SW8260B 1 0.089 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Bromodichloromethane SW8260B 1 0.076 0.50 ND ug/L 07/15/22 20:58 JZ 467555 cis-1,3-Dichloropropene SW8260B 1 0.078 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Toluene SW8260B 1 0.14 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Tetrachloroethylene SW8260B 1 0.24 0.50 ND ug/L 07/15/22 20:58 JZ 467555 trans-1,3-Dichloropropene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,1,2-Trichloroethane SW8260B 1 0.076 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Dibromochloromethane SW8260B 1 0.18 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,3-Dichloropropane SW8260B 1 0.22 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,2-Dibromoethane SW8260B 1 0.079 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Chlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Ethylbenzene SW8260B 1 0.20 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Total Page Count: 34 Page 12 of 34
Packet Page 2451

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 13:45
15799.004.000
Cedar Boulevard
MW-4
Sample Matrix: Groundwater
Lab Sample ID: 2207108-003A
SDG:

Prep Batch ID: 1143254
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
1,1,1,2-Tetrachloroethane SW8260B 1 ug/L 467555 0.087 0.50 ND 07/15/22 20:58 JZ m,p-Xylene SW8260B 1 0.39 1.0 ND ug/L 07/15/22 20:58 JZ 467555 o-Xylene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Styrene SW8260B 1 0.11 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Bromoform SW8260B 1 0.076 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Isopropyl Benzene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 20:58 JZ 467555 n-Propylbenzene SW8260B 1 0.30 0.50 ND ug/L 07/15/22 20:58 JZ 467555 Bromobenzene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,1,2,2-Tetrachloroethane SW8260B 1 0.079 0.50 ND ug/L 07/15/22 20:58 JZ 467555 2-Chlorotoluene SW8260B 1 0.25 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,3,5-Trimethylbenzene SW8260B 1 0.24 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,2,3-Trichloropropane SW8260B 1 0.15 0.50 ND ug/L 07/15/22 20:58 JZ 467555 4-Chlorotoluene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 20:58 JZ 467555 tert-Butylbenzene SW8260B 1 0.26 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,2,4-Trimethylbenzene SW8260B 1 0.23 0.50 ND ug/L 07/15/22 20:58 JZ 467555 sec-Butyl Benzene SW8260B 1 0.30 0.50 ND ug/L 07/15/22 20:58 JZ 467555 p-Isopropyltoluene SW8260B 1 0.27 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,3-Dichlorobenzene SW8260B 1 0.17 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,4-Dichlorobenzene SW8260B 1 0.18 0.50 ND ug/L 07/15/22 20:58 JZ 467555 n-Butylbenzene SW8260B 1 0.27 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,2-Dichlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 20:58 JZ 467555 1,2-Dibromo-3-Chloropropane SW8260B 1 0.76 2.0 ND ug/L 07/15/22 20:58 JZ 467555 Hexachlorobutadiene SW8260B 1 0.62 2.0 ND ug/L 07/15/22 20:58 JZ 467555 1,2,4-Trichlorobenzene SW8260B 1 0.93 2.0 ND ug/L 07/15/22 20:58 JZ 467555 Naphthalene SW8260B 1 1.2 2.0 ND ug/L 07/15/22 20:58 JZ 467555 1,2,3-Trichlorobenzene SW8260B 1 1.2 2.0 ND ug/L 07/15/22 20:58 JZ 467555 (S) Dibromofluoromethane SW8260B 61.2 - 131 119 % 07/15/22 20:58 JZ 467555 (S) Toluene-d8 SW8260B 75.1 - 127 97.7 % 07/15/22 20:58 JZ 467555 (S) 4-Bromofluorobenzene SW8260B 64.1 - 120 105 % 07/15/22 20:58 JZ 467555 Total Page Count: 34 Page 13 of 34
Packet Page 2452

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 13:45
15799.004.000
Cedar Boulevard
MW-4
Sample Matrix: Groundwater
Lab Sample ID: 2207108-003A
SDG:

Prep Batch ID: 1143255
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030GRO
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH Gasoline 8260TPH 1 ug/L 467555 29 50 ND 07/15/22 20:58 JZ (S) 4-Bromofluorobenzene 8260TPH 41.5 - 125 70.9 % 07/15/22 20:58 JZ 467555 Total Page Count: 34 Page 14 of 34
Packet Page 2453

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 13:45
15799.004.000
Cedar Boulevard
MW-4
Sample Matrix: Groundwater
Lab Sample ID: 2207108-003B
SDG:

Prep Batch ID: 1143299
Prep Batch Date/Time: 7/19/22 9:23:00AM
Prep Analyst: AKIZ
Prep Method: 3510_TPH SG
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH as Diesel (SG) SW8015B 1 mg/L 467715 0.037 0.10 ND 07/19/22 19:27 SN TPH as Motor Oil (SG) SW8015B 1 0.11 0.40 ND mg/L 07/19/22 19:27 SN 467715 Acceptance Limits
Pentacosane (S) SW8015B 40 - 129 79.7 % 07/19/22 19:27 SN 467715 Total Page Count: 34 Page 15 of 34
Packet Page 2454

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 16:00
15799.004.000
Cedar Boulevard
MW-5
Sample Matrix: Groundwater
Lab Sample ID: 2207108-004A
SDG:

Prep Batch ID: 1143254
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Dichlorodifluoromethane SW8260B 1 ug/L 467555 0.26 0.50 ND 07/15/22 21:28 JZ Chloromethane SW8260B 1 0.17 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Vinyl Chloride SW8260B 1 0.21 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Bromomethane SW8260B 1 0.21 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Chloroethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Trichlorofluoromethane SW8260B 1 0.19 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,1-Dichloroethene SW8260B 1 0.14 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Freon 113 SW8260B 1 0.34 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Methylene Chloride SW8260B 1 0.13 1.0 ND ug/L 07/15/22 21:28 JZ 467555 trans-1,2-Dichloroethene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 21:28 JZ 467555 MTBE SW8260B 1 0.077 0.50 ND ug/L 07/15/22 21:28 JZ 467555 tert-Butanol SW8260B 1 2.9 5.0 ND ug/L 07/15/22 21:28 JZ 467555 DIPE SW8260B 1 0.12 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,1-Dichloroethane SW8260B 1 0.12 0.50 ND ug/L 07/15/22 21:28 JZ 467555 ETBE SW8260B 1 0.064 0.50 ND ug/L 07/15/22 21:28 JZ 467555 cis-1,2-Dichloroethene SW8260B 1 0.15 0.50 0.59 ug/L 07/15/22 21:28 JZ 467555 2,2-Dichloropropane SW8260B 1 0.094 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Bromochloromethane SW8260B 1 0.15 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Chloroform SW8260B 1 0.12 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Carbon Tetrachloride SW8260B 1 0.16 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,1,1-Trichloroethane SW8260B 1 0.16 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,1-Dichloropropene SW8260B 1 0.19 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Benzene SW8260B 1 0.065 0.50 ND ug/L 07/15/22 21:28 JZ 467555 TAME SW8260B 1 0.072 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,2-Dichloroethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Trichloroethylene SW8260B 1 0.15 0.50 0.51 ug/L 07/15/22 21:28 JZ 467555 Dibromomethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,2-Dichloropropane SW8260B 1 0.089 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Bromodichloromethane SW8260B 1 0.076 0.50 ND ug/L 07/15/22 21:28 JZ 467555 cis-1,3-Dichloropropene SW8260B 1 0.078 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Toluene SW8260B 1 0.14 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Tetrachloroethylene SW8260B 1 0.24 0.50 3.2 ug/L 07/15/22 21:28 JZ 467555 trans-1,3-Dichloropropene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,1,2-Trichloroethane SW8260B 1 0.076 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Dibromochloromethane SW8260B 1 0.18 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,3-Dichloropropane SW8260B 1 0.22 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,2-Dibromoethane SW8260B 1 0.079 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Chlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Ethylbenzene SW8260B 1 0.20 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Total Page Count: 34 Page 16 of 34
Packet Page 2455

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 16:00
15799.004.000
Cedar Boulevard
MW-5
Sample Matrix: Groundwater
Lab Sample ID: 2207108-004A
SDG:

Prep Batch ID: 1143254
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
1,1,1,2-Tetrachloroethane SW8260B 1 ug/L 467555 0.087 0.50 ND 07/15/22 21:28 JZ m,p-Xylene SW8260B 1 0.39 1.0 ND ug/L 07/15/22 21:28 JZ 467555 o-Xylene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Styrene SW8260B 1 0.11 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Bromoform SW8260B 1 0.076 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Isopropyl Benzene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 21:28 JZ 467555 n-Propylbenzene SW8260B 1 0.30 0.50 ND ug/L 07/15/22 21:28 JZ 467555 Bromobenzene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,1,2,2-Tetrachloroethane SW8260B 1 0.079 0.50 ND ug/L 07/15/22 21:28 JZ 467555 2-Chlorotoluene SW8260B 1 0.25 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,3,5-Trimethylbenzene SW8260B 1 0.24 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,2,3-Trichloropropane SW8260B 1 0.15 0.50 ND ug/L 07/15/22 21:28 JZ 467555 4-Chlorotoluene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 21:28 JZ 467555 tert-Butylbenzene SW8260B 1 0.26 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,2,4-Trimethylbenzene SW8260B 1 0.23 0.50 ND ug/L 07/15/22 21:28 JZ 467555 sec-Butyl Benzene SW8260B 1 0.30 0.50 ND ug/L 07/15/22 21:28 JZ 467555 p-Isopropyltoluene SW8260B 1 0.27 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,3-Dichlorobenzene SW8260B 1 0.17 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,4-Dichlorobenzene SW8260B 1 0.18 0.50 ND ug/L 07/15/22 21:28 JZ 467555 n-Butylbenzene SW8260B 1 0.27 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,2-Dichlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 21:28 JZ 467555 1,2-Dibromo-3-Chloropropane SW8260B 1 0.76 2.0 ND ug/L 07/15/22 21:28 JZ 467555 Hexachlorobutadiene SW8260B 1 0.62 2.0 ND ug/L 07/15/22 21:28 JZ 467555 1,2,4-Trichlorobenzene SW8260B 1 0.93 2.0 ND ug/L 07/15/22 21:28 JZ 467555 Naphthalene SW8260B 1 1.2 2.0 ND ug/L 07/15/22 21:28 JZ 467555 1,2,3-Trichlorobenzene SW8260B 1 1.2 2.0 ND ug/L 07/15/22 21:28 JZ 467555 (S) Dibromofluoromethane SW8260B 61.2 - 131 120 % 07/15/22 21:28 JZ 467555 (S) Toluene-d8 SW8260B 75.1 - 127 97.6 % 07/15/22 21:28 JZ 467555 (S) 4-Bromofluorobenzene SW8260B 64.1 - 120 107 % 07/15/22 21:28 JZ 467555 Total Page Count: 34 Page 17 of 34
Packet Page 2456

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 16:00
15799.004.000
Cedar Boulevard
MW-5
Sample Matrix: Groundwater
Lab Sample ID: 2207108-004A
SDG:

Prep Batch ID: 1143255
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030GRO
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH Gasoline 8260TPH 1 ug/L 467555 29 50 ND 07/15/22 21:28 JZ (S) 4-Bromofluorobenzene 8260TPH 41.5 - 125 75.4 % 07/15/22 21:28 JZ 467555 Total Page Count: 34 Page 18 of 34
Packet Page 2457

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 16:00
15799.004.000
Cedar Boulevard
MW-5
Sample Matrix: Groundwater
Lab Sample ID: 2207108-004B
SDG:

Prep Batch ID: 1143299
Prep Batch Date/Time: 7/19/22 9:23:00AM
Prep Analyst: AKIZ
Prep Method: 3510_TPH SG
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH as Diesel (SG) SW8015B 1 mg/L 467715 0.037 0.10 ND 07/19/22 19:52 SN TPH as Motor Oil (SG) SW8015B 1 0.11 0.40 ND mg/L 07/19/22 19:52 SN 467715 Acceptance Limits
Pentacosane (S) SW8015B 40 - 129 68.8 % 07/19/22 19:52 SN 467715 Total Page Count: 34 Page 19 of 34
Packet Page 2458

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 16:30
15799.004.000
Cedar Boulevard
MW-6
Sample Matrix: Groundwater
Lab Sample ID: 2207108-005A
SDG:

Prep Batch ID: 1143254
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Dichlorodifluoromethane SW8260B 1 ug/L 467555 0.26 0.50 ND 07/15/22 21:58 JZ Chloromethane SW8260B 1 0.17 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Vinyl Chloride SW8260B 1 0.21 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Bromomethane SW8260B 1 0.21 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Chloroethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Trichlorofluoromethane SW8260B 1 0.19 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,1-Dichloroethene SW8260B 1 0.14 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Freon 113 SW8260B 1 0.34 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Methylene Chloride SW8260B 1 0.13 1.0 ND ug/L 07/15/22 21:58 JZ 467555 trans-1,2-Dichloroethene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 21:58 JZ 467555 MTBE SW8260B 1 0.077 0.50 ND ug/L 07/15/22 21:58 JZ 467555 tert-Butanol SW8260B 1 2.9 5.0 ND ug/L 07/15/22 21:58 JZ 467555 DIPE SW8260B 1 0.12 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,1-Dichloroethane SW8260B 1 0.12 0.50 ND ug/L 07/15/22 21:58 JZ 467555 ETBE SW8260B 1 0.064 0.50 ND ug/L 07/15/22 21:58 JZ 467555 cis-1,2-Dichloroethene SW8260B 1 0.15 0.50 2.3 ug/L 07/15/22 21:58 JZ 467555 2,2-Dichloropropane SW8260B 1 0.094 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Bromochloromethane SW8260B 1 0.15 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Chloroform SW8260B 1 0.12 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Carbon Tetrachloride SW8260B 1 0.16 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,1,1-Trichloroethane SW8260B 1 0.16 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,1-Dichloropropene SW8260B 1 0.19 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Benzene SW8260B 1 0.065 0.50 ND ug/L 07/15/22 21:58 JZ 467555 TAME SW8260B 1 0.072 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,2-Dichloroethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Trichloroethylene SW8260B 1 0.15 0.50 1.1 ug/L 07/15/22 21:58 JZ 467555 Dibromomethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,2-Dichloropropane SW8260B 1 0.089 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Bromodichloromethane SW8260B 1 0.076 0.50 ND ug/L 07/15/22 21:58 JZ 467555 cis-1,3-Dichloropropene SW8260B 1 0.078 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Toluene SW8260B 1 0.14 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Tetrachloroethylene SW8260B 1 0.24 0.50 2.4 ug/L 07/15/22 21:58 JZ 467555 trans-1,3-Dichloropropene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,1,2-Trichloroethane SW8260B 1 0.076 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Dibromochloromethane SW8260B 1 0.18 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,3-Dichloropropane SW8260B 1 0.22 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,2-Dibromoethane SW8260B 1 0.079 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Chlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Ethylbenzene SW8260B 1 0.20 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Total Page Count: 34 Page 20 of 34
Packet Page 2459

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 16:30
15799.004.000
Cedar Boulevard
MW-6
Sample Matrix: Groundwater
Lab Sample ID: 2207108-005A
SDG:

Prep Batch ID: 1143254
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
1,1,1,2-Tetrachloroethane SW8260B 1 ug/L 467555 0.087 0.50 ND 07/15/22 21:58 JZ m,p-Xylene SW8260B 1 0.39 1.0 ND ug/L 07/15/22 21:58 JZ 467555 o-Xylene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Styrene SW8260B 1 0.11 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Bromoform SW8260B 1 0.076 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Isopropyl Benzene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 21:58 JZ 467555 n-Propylbenzene SW8260B 1 0.30 0.50 ND ug/L 07/15/22 21:58 JZ 467555 Bromobenzene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,1,2,2-Tetrachloroethane SW8260B 1 0.079 0.50 ND ug/L 07/15/22 21:58 JZ 467555 2-Chlorotoluene SW8260B 1 0.25 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,3,5-Trimethylbenzene SW8260B 1 0.24 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,2,3-Trichloropropane SW8260B 1 0.15 0.50 ND ug/L 07/15/22 21:58 JZ 467555 4-Chlorotoluene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 21:58 JZ 467555 tert-Butylbenzene SW8260B 1 0.26 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,2,4-Trimethylbenzene SW8260B 1 0.23 0.50 ND ug/L 07/15/22 21:58 JZ 467555 sec-Butyl Benzene SW8260B 1 0.30 0.50 ND ug/L 07/15/22 21:58 JZ 467555 p-Isopropyltoluene SW8260B 1 0.27 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,3-Dichlorobenzene SW8260B 1 0.17 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,4-Dichlorobenzene SW8260B 1 0.18 0.50 ND ug/L 07/15/22 21:58 JZ 467555 n-Butylbenzene SW8260B 1 0.27 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,2-Dichlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 21:58 JZ 467555 1,2-Dibromo-3-Chloropropane SW8260B 1 0.76 2.0 ND ug/L 07/15/22 21:58 JZ 467555 Hexachlorobutadiene SW8260B 1 0.62 2.0 ND ug/L 07/15/22 21:58 JZ 467555 1,2,4-Trichlorobenzene SW8260B 1 0.93 2.0 ND ug/L 07/15/22 21:58 JZ 467555 Naphthalene SW8260B 1 1.2 2.0 ND ug/L 07/15/22 21:58 JZ 467555 1,2,3-Trichlorobenzene SW8260B 1 1.2 2.0 ND ug/L 07/15/22 21:58 JZ 467555 (S) Dibromofluoromethane SW8260B 61.2 - 131 120 % 07/15/22 21:58 JZ 467555 (S) Toluene-d8 SW8260B 75.1 - 127 99.0 % 07/15/22 21:58 JZ 467555 (S) 4-Bromofluorobenzene SW8260B 64.1 - 120 106 % 07/15/22 21:58 JZ 467555 Total Page Count: 34 Page 21 of 34
Packet Page 2460

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 16:30
15799.004.000
Cedar Boulevard
MW-6
Sample Matrix: Groundwater
Lab Sample ID: 2207108-005A
SDG:

Prep Batch ID: 1143255
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030GRO
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH Gasoline 8260TPH 1 ug/L 467555 29 50 51.2 x 07/15/22 21:58 JZ (S) 4-Bromofluorobenzene 8260TPH 41.5 - 125 78.0 % 07/15/22 21:58 JZ 467555 NOTE: Reported TPH value includes amount due to discrete peak (cis-1,2DCE, TCE and PCE).

Total Page Count: 34 Page 22 of 34
Packet Page 2461

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 16:30
15799.004.000
Cedar Boulevard
MW-6
Sample Matrix: Groundwater
Lab Sample ID: 2207108-005B
SDG:

Prep Batch ID: 1143299
Prep Batch Date/Time: 7/19/22 9:23:00AM
Prep Analyst: AKIZ
Prep Method: 3510_TPH SG
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH as Diesel (SG) SW8015B 1 mg/L 467715 0.037 0.10 ND 07/19/22 20:16 SN TPH as Motor Oil (SG) SW8015B 1 0.11 0.40 ND mg/L 07/19/22 20:16 SN 467715 Acceptance Limits
Pentacosane (S) SW8015B 40 - 129 68.8 % 07/19/22 20:16 SN 467715 Total Page Count: 34 Page 23 of 34
Packet Page 2462

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 11:15
15799.004.000
Cedar Boulevard
MW-7
Sample Matrix: Groundwater
Lab Sample ID: 2207108-006A
SDG:

Prep Batch ID: 1143254
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Dichlorodifluoromethane SW8260B 1 ug/L 467555 0.26 0.50 ND 07/15/22 22:28 JZ Chloromethane SW8260B 1 0.17 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Vinyl Chloride SW8260B 1 0.21 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Bromomethane SW8260B 1 0.21 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Chloroethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Trichlorofluoromethane SW8260B 1 0.19 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,1-Dichloroethene SW8260B 1 0.14 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Freon 113 SW8260B 1 0.34 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Methylene Chloride SW8260B 1 0.13 1.0 ND ug/L 07/15/22 22:28 JZ 467555 trans-1,2-Dichloroethene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 22:28 JZ 467555 MTBE SW8260B 1 0.077 0.50 ND ug/L 07/15/22 22:28 JZ 467555 tert-Butanol SW8260B 1 2.9 5.0 ND ug/L 07/15/22 22:28 JZ 467555 DIPE SW8260B 1 0.12 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,1-Dichloroethane SW8260B 1 0.12 0.50 1.2 ug/L 07/15/22 22:28 JZ 467555 ETBE SW8260B 1 0.064 0.50 ND ug/L 07/15/22 22:28 JZ 467555 cis-1,2-Dichloroethene SW8260B 1 0.15 0.50 13 ug/L 07/15/22 22:28 JZ 467555 2,2-Dichloropropane SW8260B 1 0.094 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Bromochloromethane SW8260B 1 0.15 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Chloroform SW8260B 1 0.12 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Carbon Tetrachloride SW8260B 1 0.16 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,1,1-Trichloroethane SW8260B 1 0.16 0.50 0.73 ug/L 07/15/22 22:28 JZ 467555 1,1-Dichloropropene SW8260B 1 0.19 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Benzene SW8260B 1 0.065 0.50 ND ug/L 07/15/22 22:28 JZ 467555 TAME SW8260B 1 0.072 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,2-Dichloroethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Trichloroethylene SW8260B 1 0.15 0.50 1.3 ug/L 07/15/22 22:28 JZ 467555 Dibromomethane SW8260B 1 0.11 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,2-Dichloropropane SW8260B 1 0.089 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Bromodichloromethane SW8260B 1 0.076 0.50 ND ug/L 07/15/22 22:28 JZ 467555 cis-1,3-Dichloropropene SW8260B 1 0.078 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Toluene SW8260B 1 0.14 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Tetrachloroethylene SW8260B 1 0.24 0.50 6.3 ug/L 07/15/22 22:28 JZ 467555 trans-1,3-Dichloropropene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,1,2-Trichloroethane SW8260B 1 0.076 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Dibromochloromethane SW8260B 1 0.18 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,3-Dichloropropane SW8260B 1 0.22 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,2-Dibromoethane SW8260B 1 0.079 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Chlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Ethylbenzene SW8260B 1 0.20 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Total Page Count: 34 Page 24 of 34
Packet Page 2463

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 11:15
15799.004.000
Cedar Boulevard
MW-7
Sample Matrix: Groundwater
Lab Sample ID: 2207108-006A
SDG:

Prep Batch ID: 1143255
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030GRO
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH Gasoline 8260TPH 1 ug/L 467555 29 50 66.1 x 07/15/22 22:28 JZ (S) 4-Bromofluorobenzene 8260TPH 41.5 - 125 74.1 % 07/15/22 22:28 JZ 467555 NOTE: Reported TPH value includes amount due to discrete peak (cis-1,2DCE, TCE and PCE).

Total Page Count: 34 Page 26 of 34
Packet Page 2464

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 11:15
15799.004.000
Cedar Boulevard
MW-7
Sample Matrix: Groundwater
Lab Sample ID: 2207108-006A
SDG:

Prep Batch ID: 1143254
Prep Batch Date/Time: 7/15/22 11:25:00AM
Prep Analyst: JZHAO
Prep Method: 5030VOC
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
1,1,1,2-Tetrachloroethane SW8260B 1 ug/L 467555 0.087 0.50 ND 07/15/22 22:28 JZ m,p-Xylene SW8260B 1 0.39 1.0 ND ug/L 07/15/22 22:28 JZ 467555 o-Xylene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Styrene SW8260B 1 0.11 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Bromoform SW8260B 1 0.076 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Isopropyl Benzene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 22:28 JZ 467555 n-Propylbenzene SW8260B 1 0.30 0.50 ND ug/L 07/15/22 22:28 JZ 467555 Bromobenzene SW8260B 1 0.15 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,1,2,2-Tetrachloroethane SW8260B 1 0.079 0.50 ND ug/L 07/15/22 22:28 JZ 467555 2-Chlorotoluene SW8260B 1 0.25 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,3,5-Trimethylbenzene SW8260B 1 0.24 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,2,3-Trichloropropane SW8260B 1 0.15 0.50 ND ug/L 07/15/22 22:28 JZ 467555 4-Chlorotoluene SW8260B 1 0.22 0.50 ND ug/L 07/15/22 22:28 JZ 467555 tert-Butylbenzene SW8260B 1 0.26 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,2,4-Trimethylbenzene SW8260B 1 0.23 0.50 ND ug/L 07/15/22 22:28 JZ 467555 sec-Butyl Benzene SW8260B 1 0.30 0.50 ND ug/L 07/15/22 22:28 JZ 467555 p-Isopropyltoluene SW8260B 1 0.27 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,3-Dichlorobenzene SW8260B 1 0.17 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,4-Dichlorobenzene SW8260B 1 0.18 0.50 ND ug/L 07/15/22 22:28 JZ 467555 n-Butylbenzene SW8260B 1 0.27 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,2-Dichlorobenzene SW8260B 1 0.16 0.50 ND ug/L 07/15/22 22:28 JZ 467555 1,2-Dibromo-3-Chloropropane SW8260B 1 0.76 2.0 ND ug/L 07/15/22 22:28 JZ 467555 Hexachlorobutadiene SW8260B 1 0.62 2.0 ND ug/L 07/15/22 22:28 JZ 467555 1,2,4-Trichlorobenzene SW8260B 1 0.93 2.0 ND ug/L 07/15/22 22:28 JZ 467555 Naphthalene SW8260B 1 1.2 2.0 ND ug/L 07/15/22 22:28 JZ 467555 1,2,3-Trichlorobenzene SW8260B 1 1.2 2.0 ND ug/L 07/15/22 22:28 JZ 467555 (S) Dibromofluoromethane SW8260B 61.2 - 131 120 % 07/15/22 22:28 JZ 467555 (S) Toluene-d8 SW8260B 75.1 - 127 97.8 % 07/15/22 22:28 JZ 467555 (S) 4-Bromofluorobenzene SW8260B 64.1 - 120 101 % 07/15/22 22:28 JZ 467555 Total Page Count: 34 Page 25 of 34
Packet Page 2465

SAMPLE RESULTS
Report prepared for:

Date Reported: 07/22/22
Date/Time Received: 07/15/22, 10:00 am
Engeo (San Ramon)
Monica Kunzel
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
07/13/22 / 11:15
15799.004.000
Cedar Boulevard
MW-7
Sample Matrix: Groundwater
Lab Sample ID: 2207108-006B
SDG:

Prep Batch ID: 1143299
Prep Batch Date/Time: 7/19/22 9:23:00AM
Prep Analyst: AKIZ
Prep Method: 3510_TPH SG
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
TPH as Diesel (SG) SW8015B 1 mg/L 467715 0.037 0.10 ND 07/19/22 20:39 SN TPH as Motor Oil (SG) SW8015B 1 0.11 0.40 ND mg/L 07/19/22 20:39 SN 467715 Acceptance Limits
Pentacosane (S) SW8015B 40 - 129 63.6 % 07/19/22 20:39 SN 467715 Total Page Count: 34 Page 27 of 34
Packet Page 2466

MEMORANDUM
DATE: 2 May 2023
NAME: COMPANY: EMAIL:

Cedar Blvd Townhomes LLC
c/o Caden Proctor Waymark Development [email protected] FROM: Josh Roper, PE, LEED® AP
Matthew Hsiung
SUBJECT: 38600 Cedar Boulevard, Newark, CA
Environmental Review of Construction Noise and Vibration PROJECT: 22-0336
This memo discusses construction noise and vibration for the townhome project at 38600 Cedar Boulevard in Newark, California. The project consists of approximately 72 to 74 three-story residential units in sixteen buildings with common outdoor use space. The site is adjacent to Interstate 880. Existing residences are located across Cedar Boulevard, and a motel is located to the southeast. Construction at the site is expected to commence around October 2023 and be complete around April of 2026.

Noise and vibration levels from construction activities will vary significantly depending on the type of equipment being used, the process, and the location. Construction will not include pile driving. Interior roads to the site may use vibratory rollers, and demolition is expected to use jackhammers. Tasks/phases are expected to consist of the following: site demolition and preparation, grading, utilities, home construction, and landscaping. The Noise section of Newark’s General Plan Tune Up EIR, dated 13 August 2013, identifies the following typical levels for construction equipment:

Construction
Equipment
Typical Noise Level
(dBA) at 50 Feet Construction Equipment
Typical Noise Level
(dBA) at 50 Feet
Air Compressor 81 Jackhammer 88
Backhoe 80 Loader 85
Compactor 82 Paver 89
Concrete Mixer 85 Pneumatic Tool 85
Concrete Pump 71 Pump 76
Concrete Vibrator 76 Roller 74
Dozer 85 Saw 76
Generator 81 Scraper 89
Impact Wrench 85 Truck 88
APPENDIX E-1
Packet Page 2467
38600 Cedar Boulevard
2 May 2023
Environmental Review of Construction Noise and Vibration

Page 2 ends

Newark City CouncilSeptember 14, 2023

Newark City Council
September 14, 2023