Exhibit 2: Amended Modified Negative Declaration CEQA — Alameda City Council, July 1, 2025 (part 2 of 4)

Glossary of Terms & Qualifier Definitions
Client: Ninyo & Moore
Project: 403773004; Alameda Aquatic Center
WorkOrder: 2401970
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" Glossary Abbreviation
%D Serial Dilution Percent Difference
95% Interval 95% Confident Interval
CCV Continuing Calibration Verification.

CCV REC (%) % recovery of Continuing Calibration Verification.

CPT Consumer Product Testing not NELAP Accredited
DF Dilution Factor
DI WET (DISTLC) Waste Extraction Test using DI water
DISS Dissolved (direct analysis of 0.45 µm filtered and acidified water sample) DLT Dilution Test (Serial Dilution)
DUP Duplicate
EDL Estimated Detection Limit
ERS External reference sample. Second source calibration verification.

ITEF International Toxicity Equivalence Factor
LCS Laboratory Control Sample
LCS2 Second LCS for the batch. Spike level is lower than that for the first LCS; applicable to method 1633.

LQL Lowest Quantitation Level
MB Method Blank
MB % Rec % Recovery of Surrogate in Method Blank, if applicable MDL Method Detection Limit ¹
ML Minimum Level of Quantitation
MS Matrix Spike
MSD Matrix Spike Duplicate
NA Not Applicable
ND Not detected at or above the indicated MDL or RL
NR Data Not Reported due to matrix interference or insufficient sample amount.

PDS Post Digestion Spike
PF Prep Factor
RD Relative Difference
RL Reporting Limit ²
RPD Relative Percent Difference
RRT Relative Retention Time
RSD Relative Standard Deviation
SNR Surrogate is diluted out of the calibration range
SPK Val Spike Value
¹ MDL is the minimum measured concentration of a substance that can be reported with 99% confidence that the measured concentration is distinguishable from method blank results. Definition and Procedure for the Determination of the Method Detection Limit, Revision 2, 40CFR, Part 136, Appendix B, EPA 821-R-16-006, December 2016. Values are based upon our default extraction volume/amount and are subject to change.
² RL is the lowest level that can be reliably determined within specified limits of precision and accuracy during routine laboratory operating conditions. (The RL cannot be lower than the lowest calibration standard used in the initial calibration of the instrument and must be greater than the MDL.) Values are based upon our default extraction volume/amount and are subject to change.

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Glossary of Terms & Qualifier Definitions
Client: Ninyo & Moore
Project: 403773004; Alameda Aquatic Center
WorkOrder: 2401970
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" SPKRef Val Spike Reference Value
SPLP Synthetic Precipitation Leachate Procedure
ST Sorbent Tube
TCLP Toxicity Characteristic Leachate Procedure
TEQ Toxicity Equivalents
TNTC “Too Numerous to Count;” greater than 250 colonies observed on the plate.

TZA TimeZone Net Adjustment for sample collected outside of MAI's UTC.

WET (STLC) Waste Extraction Test (Soluble Threshold Limit Concentration) Quality Control Qualifiers
F2 LCS/LCSD recovery and/or RPD/RSD is out of acceptance criteria.

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Analytical Report
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" Client: Ninyo & Moore
Project: 403773004; Alameda Aquatic Center
Date Received: 01/16/2024 15:30
Date Prepared: 01/23/2024
WorkOrder: 2401970
Extraction Method: SW5030B
Analytical Method: SW8260D
Unit: µg/L
Volatile Organics
MW-1 2401970-001A Water 01/15/2024 14:45 GC45 01222425.D 286330 Analytes Result DF Date AnalyzedRL
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND 40 1 01/23/2024 00:17
tert-Amyl methyl ether (TAME) ND 0.50 1 01/23/2024 00:17 Benzene ND 0.20 1 01/23/2024 00:17
Bromobenzene ND 0.50 1 01/23/2024 00:17
Bromochloromethane ND 0.50 1 01/23/2024 00:17
Bromodichloromethane ND 0.050 1 01/23/2024 00:17
Bromoform ND 0.50 1 01/23/2024 00:17
Bromomethane ND 0.50 1 01/23/2024 00:17
2-Butanone (MEK) ND 5.0 1 01/23/2024 00:17
t-Butyl alcohol (TBA) ND 5.0 1 01/23/2024 00:17
n-Butyl benzene ND 0.50 1 01/23/2024 00:17
sec-Butyl benzene ND 0.50 1 01/23/2024 00:17
tert-Butyl benzene ND 0.50 1 01/23/2024 00:17
Carbon Disulfide ND 0.50 1 01/23/2024 00:17
Carbon Tetrachloride ND 0.050 1 01/23/2024 00:17
Chlorobenzene ND 0.50 1 01/23/2024 00:17
Chloroethane ND 0.50 1 01/23/2024 00:17
Chloroform ND 0.10 1 01/23/2024 00:17
Chloromethane ND 0.50 1 01/23/2024 00:17
2-Chlorotoluene ND 0.50 1 01/23/2024 00:17
4-Chlorotoluene ND 0.50 1 01/23/2024 00:17
Dibromochloromethane ND 0.15 1 01/23/2024 00:17
1,2-Dibromo-3-chloropropane ND 0.020 1 01/23/2024 00:17 1,2-Dibromoethane (EDB) ND 0.040 1 01/23/2024 00:17
Dibromomethane ND 0.50 1 01/23/2024 00:17
1,2-Dichlorobenzene ND 0.50 1 01/23/2024 00:17
1,3-Dichlorobenzene ND 0.50 1 01/23/2024 00:17
1,4-Dichlorobenzene ND 0.50 1 01/23/2024 00:17
Dichlorodifluoromethane ND 0.50 1 01/23/2024 00:17
1,1-Dichloroethane ND 0.50 1 01/23/2024 00:17
1,2-Dichloroethane (1,2-DCA) ND 0.020 1 01/23/2024 00:17 1,1-Dichloroethene ND 0.010 1 01/23/2024 00:17
cis-1,2-Dichloroethene ND 0.50 1 01/23/2024 00:17
trans-1,2-Dichloroethene ND 0.50 1 01/23/2024 00:17
1,2-Dichloropropane ND 0.20 1 01/23/2024 00:17
1,3-Dichloropropane ND 0.50 1 01/23/2024 00:17
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" Client: Ninyo & Moore
Project: 403773004; Alameda Aquatic Center
Date Received: 01/16/2024 15:30
Date Prepared: 01/23/2024
WorkOrder: 2401970
Extraction Method: SW5030B
Analytical Method: SW8260D
Unit: µg/L
Volatile Organics
MW-1 2401970-001A Water 01/15/2024 14:45 GC45 01222425.D 286330 Analytes Result DF Date AnalyzedRL
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,2-Dichloropropane ND 0.50 1 01/23/2024 00:17
1,1-Dichloropropene ND 0.50 1 01/23/2024 00:17
cis-1,3-Dichloropropene ND 0.50 1 01/23/2024 00:17
trans-1,3-Dichloropropene ND 0.50 1 01/23/2024 00:17
Diisopropyl ether (DIPE) ND 0.50 1 01/23/2024 00:17
Ethylbenzene ND 0.50 1 01/23/2024 00:17
Ethyl tert-butyl ether (ETBE) ND 0.50 1 01/23/2024 00:17 Freon 113 ND 0.50 1 01/23/2024 00:17
Hexachlorobutadiene ND 0.50 1 01/23/2024 00:17
Hexachloroethane ND 0.20 1 01/23/2024 00:17
2-Hexanone ND 0.50 1 01/23/2024 00:17
Isopropylbenzene ND 0.50 1 01/23/2024 00:17
4-Isopropyl toluene ND 0.50 1 01/23/2024 00:17
Methyl-t-butyl ether (MTBE) ND 0.50 1 01/23/2024 00:17
Methylene chloride ND 2.0 1 01/23/2024 00:17
4-Methyl-2-pentanone (MIBK) ND 0.50 1 01/23/2024 00:17
Naphthalene ND 0.30 1 01/23/2024 00:17
n-Propyl benzene ND 0.50 1 01/23/2024 00:17
Styrene ND 2.0 1 01/23/2024 00:17
1,1,1,2-Tetrachloroethane ND 0.50 1 01/23/2024 00:17
1,1,2,2-Tetrachloroethane ND 0.020 1 01/23/2024 00:17
Tetrachloroethene ND 0.20 1 01/23/2024 00:17
Toluene ND 0.50 1 01/23/2024 00:17
1,2,3-Trichlorobenzene ND 0.50 1 01/23/2024 00:17
1,2,4-Trichlorobenzene ND 0.50 1 01/23/2024 00:17
1,1,1-Trichloroethane ND 0.50 1 01/23/2024 00:17
1,1,2-Trichloroethane ND 0.20 1 01/23/2024 00:17
Trichloroethene ND 0.50 1 01/23/2024 00:17
Trichlorofluoromethane ND 0.50 1 01/23/2024 00:17
1,2,3-Trichloropropane ND 0.0050 1 01/23/2024 00:17
1,2,4-Trimethylbenzene ND 0.50 1 01/23/2024 00:17
1,3,5-Trimethylbenzene ND 0.50 1 01/23/2024 00:17
Vinyl Chloride ND 0.0050 1 01/23/2024 00:17
m,p-Xylene ND 0.50 1 01/23/2024 00:17
o-Xylene ND 0.50 1 01/23/2024 00:17
Xylenes, Total ND 0.50 1 01/23/2024 00:17
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" Client: Ninyo & Moore
Project: 403773004; Alameda Aquatic Center
Date Received: 01/16/2024 15:30
Date Prepared: 01/23/2024
WorkOrder: 2401970
Extraction Method: SW5030B
Analytical Method: SW8260D
Unit: µg/L
Volatile Organics
MW-2 2401970-002A Water 01/15/2024 12:45 GC45 01222426.D 286330 Analytes Result DF Date AnalyzedRL
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND 40 1 01/23/2024 00:56
tert-Amyl methyl ether (TAME) ND 0.50 1 01/23/2024 00:56 Benzene ND 0.20 1 01/23/2024 00:56
Bromobenzene ND 0.50 1 01/23/2024 00:56
Bromochloromethane ND 0.50 1 01/23/2024 00:56
Bromodichloromethane ND 0.050 1 01/23/2024 00:56
Bromoform ND 0.50 1 01/23/2024 00:56
Bromomethane ND 0.50 1 01/23/2024 00:56
2-Butanone (MEK) ND 5.0 1 01/23/2024 00:56
t-Butyl alcohol (TBA) ND 5.0 1 01/23/2024 00:56
n-Butyl benzene ND 0.50 1 01/23/2024 00:56
sec-Butyl benzene ND 0.50 1 01/23/2024 00:56
tert-Butyl benzene ND 0.50 1 01/23/2024 00:56
Carbon Disulfide ND 0.50 1 01/23/2024 00:56
Carbon Tetrachloride ND 0.050 1 01/23/2024 00:56
Chlorobenzene ND 0.50 1 01/23/2024 00:56
Chloroethane ND 0.50 1 01/23/2024 00:56
Chloroform ND 0.10 1 01/23/2024 00:56
Chloromethane ND 0.50 1 01/23/2024 00:56
2-Chlorotoluene ND 0.50 1 01/23/2024 00:56
4-Chlorotoluene ND 0.50 1 01/23/2024 00:56
Dibromochloromethane ND 0.15 1 01/23/2024 00:56
1,2-Dibromo-3-chloropropane ND 0.020 1 01/23/2024 00:56 1,2-Dibromoethane (EDB) ND 0.040 1 01/23/2024 00:56
Dibromomethane ND 0.50 1 01/23/2024 00:56
1,2-Dichlorobenzene ND 0.50 1 01/23/2024 00:56
1,3-Dichlorobenzene ND 0.50 1 01/23/2024 00:56
1,4-Dichlorobenzene ND 0.50 1 01/23/2024 00:56
Dichlorodifluoromethane ND 0.50 1 01/23/2024 00:56
1,1-Dichloroethane ND 0.50 1 01/23/2024 00:56
1,2-Dichloroethane (1,2-DCA) ND 0.020 1 01/23/2024 00:56 1,1-Dichloroethene ND 0.010 1 01/23/2024 00:56
cis-1,2-Dichloroethene ND 0.50 1 01/23/2024 00:56
trans-1,2-Dichloroethene ND 0.50 1 01/23/2024 00:56
1,2-Dichloropropane ND 0.20 1 01/23/2024 00:56
1,3-Dichloropropane ND 0.50 1 01/23/2024 00:56
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" Client: Ninyo & Moore
Project: 403773004; Alameda Aquatic Center
Date Received: 01/16/2024 15:30
Date Prepared: 01/23/2024
WorkOrder: 2401970
Extraction Method: SW5030B
Analytical Method: SW8260D
Unit: µg/L
Volatile Organics
MW-2 2401970-002A Water 01/15/2024 12:45 GC45 01222426.D 286330 Analytes Result DF Date AnalyzedRL
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,2-Dichloropropane ND 0.50 1 01/23/2024 00:56
1,1-Dichloropropene ND 0.50 1 01/23/2024 00:56
cis-1,3-Dichloropropene ND 0.50 1 01/23/2024 00:56
trans-1,3-Dichloropropene ND 0.50 1 01/23/2024 00:56
Diisopropyl ether (DIPE) ND 0.50 1 01/23/2024 00:56
Ethylbenzene ND 0.50 1 01/23/2024 00:56
Ethyl tert-butyl ether (ETBE) ND 0.50 1 01/23/2024 00:56 Freon 113 ND 0.50 1 01/23/2024 00:56
Hexachlorobutadiene ND 0.50 1 01/23/2024 00:56
Hexachloroethane ND 0.20 1 01/23/2024 00:56
2-Hexanone ND 0.50 1 01/23/2024 00:56
Isopropylbenzene ND 0.50 1 01/23/2024 00:56
4-Isopropyl toluene ND 0.50 1 01/23/2024 00:56
Methyl-t-butyl ether (MTBE) ND 0.50 1 01/23/2024 00:56
Methylene chloride ND 2.0 1 01/23/2024 00:56
4-Methyl-2-pentanone (MIBK) ND 0.50 1 01/23/2024 00:56
Naphthalene ND 0.30 1 01/23/2024 00:56
n-Propyl benzene ND 0.50 1 01/23/2024 00:56
Styrene ND 2.0 1 01/23/2024 00:56
1,1,1,2-Tetrachloroethane ND 0.50 1 01/23/2024 00:56
1,1,2,2-Tetrachloroethane ND 0.020 1 01/23/2024 00:56
Tetrachloroethene ND 0.20 1 01/23/2024 00:56
Toluene ND 0.50 1 01/23/2024 00:56
1,2,3-Trichlorobenzene ND 0.50 1 01/23/2024 00:56
1,2,4-Trichlorobenzene ND 0.50 1 01/23/2024 00:56
1,1,1-Trichloroethane ND 0.50 1 01/23/2024 00:56
1,1,2-Trichloroethane ND 0.20 1 01/23/2024 00:56
Trichloroethene ND 0.50 1 01/23/2024 00:56
Trichlorofluoromethane ND 0.50 1 01/23/2024 00:56
1,2,3-Trichloropropane ND 0.0050 1 01/23/2024 00:56
1,2,4-Trimethylbenzene ND 0.50 1 01/23/2024 00:56
1,3,5-Trimethylbenzene ND 0.50 1 01/23/2024 00:56
Vinyl Chloride ND 0.0050 1 01/23/2024 00:56
m,p-Xylene ND 0.50 1 01/23/2024 00:56
o-Xylene ND 0.50 1 01/23/2024 00:56
Xylenes, Total ND 0.50 1 01/23/2024 00:56
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Quality Control Report
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" Client: Ninyo & Moore
Project: 403773004; Alameda Aquatic Center
Date Analyzed: 01/22/2024
Date Prepared: 01/22/2024
WorkOrder: 2401970
BatchID: 286330
Analytical Method: SW8260D
Unit: µg/L
Sample ID: MB/LCS/LCSD-286330
Instrument: GC45
Matrix: Water
Extraction Method: SW5030B
QC Summary Report for SW8260D
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Acetone ND 6.4 40 - - -
tert-Amyl methyl ether (TAME) ND 0.11 0.50 - - -
Benzene ND 0.034 0.20 - - -
Bromobenzene ND 0.090 0.50 - - -
Bromochloromethane ND 0.14 0.50 - - -
Bromodichloromethane ND 0.022 0.050 - - -
Bromoform ND 0.10 0.50 - - -
Bromomethane ND 0.26 0.50 - - -
2-Butanone (MEK) ND 1.2 5.0 - - -
t-Butyl alcohol (TBA) ND 1.4 5.0 - - -
n-Butyl benzene ND 0.20 0.50 - - -
sec-Butyl benzene ND 0.14 0.50 - - -
tert-Butyl benzene ND 0.17 0.50 - - -
Carbon Disulfide ND 0.14 0.50 - - -
Carbon Tetrachloride ND 0.033 0.050 - - -
Chlorobenzene ND 0.092 0.50 - - -
Chloroethane ND 0.23 0.50 - - -
Chloroform ND 0.015 0.10 - - -
Chloromethane ND 0.18 0.50 - - -
2-Chlorotoluene ND 0.11 0.50 - - -
4-Chlorotoluene ND 0.11 0.50 - - -
Dibromochloromethane ND 0.069 0.15 - - -
1,2-Dibromo-3-chloropropane ND 0.0056 0.020 - - -
1,2-Dibromoethane (EDB) ND 0.015 0.040 - - -
Dibromomethane ND 0.12 0.50 - - -
1,2-Dichlorobenzene ND 0.11 0.50 - - -
1,3-Dichlorobenzene ND 0.12 0.50 - - -
1,4-Dichlorobenzene ND 0.11 0.50 - - -
Dichlorodifluoromethane ND 0.15 0.50 - - -
1,1-Dichloroethane ND 0.14 0.50 - - -
1,2-Dichloroethane (1,2-DCA) ND 0.011 0.020 - - -
1,1-Dichloroethene ND 0.0036 0.010 - - -
cis-1,2-Dichloroethene ND 0.12 0.50 - - -
trans-1,2-Dichloroethene ND 0.12 0.50 - - -
1,2-Dichloropropane ND 0.029 0.20 - - -
1,3-Dichloropropane ND 0.14 0.50 - - -
2,2-Dichloropropane ND 0.20 0.50 - - -
1,1-Dichloropropene ND 0.19 0.50 - - -
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
cis-1,3-Dichloropropene ND 0.13 0.50 - - -
trans-1,3-Dichloropropene ND 0.20 0.50 - - -
Diisopropyl ether (DIPE) ND 0.21 0.50 - - -
Ethylbenzene ND 0.14 0.50 - - -
Ethyl tert-butyl ether (ETBE) ND 0.20 0.50 - - -
Freon 113 ND 0.13 0.50 - - -
Hexachlorobutadiene ND 0.052 0.50 - - -
Hexachloroethane ND 0.079 0.20 - - -
2-Hexanone ND 0.23 0.50 - - -
Isopropylbenzene ND 0.17 0.50 - - -
4-Isopropyl toluene ND 0.22 0.50 - - -
Methyl-t-butyl ether (MTBE) ND 0.14 0.50 - - -
Methylene chloride ND 0.75 2.0 - - -
4-Methyl-2-pentanone (MIBK) ND 0.16 0.50 - - -
Naphthalene ND 0.17 0.30 - - -
n-Propyl benzene ND 0.14 0.50 - - -
Styrene ND 0.16 2.0 - - -
1,1,1,2-Tetrachloroethane ND 0.14 0.50 - - -
1,1,2,2-Tetrachloroethane ND 0.018 0.020 - - -
Tetrachloroethene ND 0.028 0.20 - - -
Toluene ND 0.096 0.50 - - -
1,2,3-Trichlorobenzene ND 0.14 0.50 - - -
1,2,4-Trichlorobenzene ND 0.16 0.50 - - -
1,1,1-Trichloroethane ND 0.14 0.50 - - -
1,1,2-Trichloroethane ND 0.026 0.20 - - -
Trichloroethene ND 0.030 0.50 - - -
Trichlorofluoromethane ND 0.13 0.50 - - -
1,2,3-Trichloropropane ND 0.0030 0.0050 - - -
1,2,4-Trimethylbenzene ND 0.17 0.50 - - -
1,3,5-Trimethylbenzene ND 0.14 0.50 - - -
Vinyl Chloride ND 0.0027 0.0050 - - -
m,p-Xylene ND 0.25 0.50 - - -
o-Xylene ND 0.12 0.50 - - -
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Surrogate Recovery
Dibromofluoromethane 26 25 105 70-130
Toluene-d8 25 25 101 70-130
4-BFB 2.4 2.5 95 70-130
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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LCS/LCSD
Limits

RPD RPD
Limit
Acetone 32 37 40 81 92 60-130 12.9 20
tert-Amyl methyl ether (TAME) 3.5 3.8 4 88 96 60-130 8.14 20 Benzene 4.0 4.0 4 99 100 65-130 1.39 20
Bromobenzene 4.2 4.1 4 105 102 60-130 3.14 20
Bromochloromethane 4.3 4.5 4 108 113 65-130 3.93 20
Bromodichloromethane 4.0 4.2 4 100 105 60-130 4.66 20
Bromoform 3.3 3.5 4 83 87 70-130 4.73 20
Bromomethane 1.9 2.2 4 48,F2 55 50-130 13.9 20
2-Butanone (MEK) 13 15 16 84 93 60-130 10.5 20
t-Butyl alcohol (TBA) 13 14 16 79 89 50-130 12.7 20
n-Butyl benzene 4.6 4.5 4 115 113 60-130 1.70 20
sec-Butyl benzene 4.5 4.4 4 111 111 60-130 0.425 20
tert-Butyl benzene 4.5 4.4 4 113 110 60-130 2.44 20
Carbon Disulfide 4.3 4.3 4 108 109 60-130 0.118 20
Carbon Tetrachloride 4.5 4.5 4 111 112 70-130 0.658 20
Chlorobenzene 4.3 4.3 4 107 108 65-130 0.592 20
Chloroethane 3.3 3.3 4 83 82 60-140 1.31 20
Chloroform 4.2 4.3 4 106 108 70-130 1.51 20
Chloromethane 3.0 3.0 4 75 75 50-130 0.0255 20
2-Chlorotoluene 4.3 4.3 4 108 109 60-130 0.577 20
4-Chlorotoluene 4.3 4.3 4 108 109 60-130 0.577 20
Dibromochloromethane 4.0 4.2 4 99 104 70-130 5.07 20
1,2-Dibromo-3-chloropropane 1.8 2.0 2 90 101 50-130 11.4 20 1,2-Dibromoethane (EDB) 1.9 2.0 2 95 101 60-130 6.45 20 Dibromomethane 3.9 4.0 4 97 100 60-130 3.71 20
1,2-Dichlorobenzene 4.2 4.2 4 104 105 65-130 1.22 20
1,3-Dichlorobenzene 4.2 4.2 4 105 105 70-130 0.187 20
1,4-Dichlorobenzene 4.3 4.2 4 107 106 65-130 0.737 20
Dichlorodifluoromethane 3.1 3.1 4 77 77 40-140 0.494 20 1,1-Dichloroethane 4.1 4.2 4 104 104 70-130 0.274 20
1,2-Dichloroethane (1,2-DCA) 3.6 3.8 4 89 94 70-130 5.64 20 1,1-Dichloroethene 4.8 4.7 4 119 118 60-130 0.751 20
cis-1,2-Dichloroethene 4.5 4.5 4 112 113 60-130 0.975 20 trans-1,2-Dichloroethene 4.5 4.4 4 111 111 70-130 0.336 20 1,2-Dichloropropane 3.8 4.0 4 96 100 60-130 3.94 20
1,3-Dichloropropane 3.9 3.9 4 96 98 60-130 2.28 20
2,2-Dichloropropane 4.7 4.7 4 118 117 60-130 0.217 20
1,1-Dichloropropene 4.3 4.3 4 108 108 60-130 0.0190 20
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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LCS/LCSD
Limits

RPD RPD
Limit
cis-1,3-Dichloropropene 4.1 4.2 4 103 105 60-130 1.86 20 trans-1,3-Dichloropropene 3.9 4.0 4 98 101 60-130 2.90 20 Diisopropyl ether (DIPE) 3.5 3.6 4 87 90 60-130 3.77 20 Ethylbenzene 4.2 4.1 4 104 102 60-130 1.94 20
Ethyl tert-butyl ether (ETBE) 3.7 3.9 4 93 97 60-130 4.26 20 Freon 113 4.6 4.5 4 114 113 60-130 0.952 20
Hexachlorobutadiene 4.9 5.0 4 124 125 60-130 0.821 20
Hexachloroethane 3.1 3.1 4 78 76 50-130 2.16 20
2-Hexanone 2.8 3.2 4 71 80 50-130 12.1 20
Isopropylbenzene 4.4 4.3 4 109 108 60-130 0.629 20
4-Isopropyl toluene 4.5 4.4 4 113 110 60-130 2.45 20
Methyl-t-butyl ether (MTBE) 3.6 4.0 4 90 99 60-130 9.33 20 Methylene chloride 2.4 2.4 4 59,F2 61 60-130 2.01 20
4-Methyl-2-pentanone (MIBK) 2.8 3.2 4 70 80 50-130 12.6 20 Naphthalene 4.1 4.4 4 103 111 60-130 7.22 20
n-Propyl benzene 4.5 4.4 4 113 109 60-130 4.21 20
Styrene 3.8 3.8 4 95 96 60-130 0.970 20
1,1,1,2-Tetrachloroethane 4.1 4.2 4 102 104 60-130 2.18 20 1,1,2,2-Tetrachloroethane 3.5 3.8 4 87 95 60-130 9.18 20 Tetrachloroethene 4.7 4.7 4 118 117 70-130 0.743 20
Toluene 4.2 4.1 4 105 103 70-130 2.05 20
1,2,3-Trichlorobenzene 4.9 5.0 4 122 125 60-130 2.49 20 1,2,4-Trichlorobenzene 4.9 5.0 4 121 126 60-130 3.64 20 1,1,1-Trichloroethane 4.4 4.4 4 109 110 70-130 0.472 20 1,1,2-Trichloroethane 3.9 4.1 4 98 103 70-130 4.70 20
Trichloroethene 4.4 4.4 4 109 110 65-130 0.786 20
Trichlorofluoromethane 4.5 4.5 4 113 113 60-130 0.386 20 1,2,3-Trichloropropane 1.8 1.9 2 90 97 60-130 7.45 20
1,2,4-Trimethylbenzene 4.3 4.3 4 108 108 60-130 0.336 20 1,3,5-Trimethylbenzene 4.4 4.3 4 109 107 60-130 1.77 20 Vinyl Chloride 1.6 1.6 2 80 79 60-130 1.17 20
m,p-Xylene 8.8 8.8 8 109 110 60-130 0.463 20
o-Xylene 4.2 4.1 4 104 103 60-130 0.886 20
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Page 19 of 30 ends

LCS/LCSD
Limits

RPD RPD
Limit
Surrogate Recovery
Dibromofluoromethane 26 27 25 104 107 70-130 2.54 20
Toluene-d8 25 25 25 102 100 70-130 1.12 20
4-BFB 2.5 2.4 2.5 99 98 70-130 1.60 20
CA ELAP 1644 • NELAP 4033ORELAP

Page 20 of 30 ends

Quality Control Report
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" Client: Ninyo & Moore
Project: 403773004; Alameda Aquatic Center
Date Analyzed: 01/17/2024 - 01/18/2024
Date Prepared: 01/17/2024
WorkOrder: 2401970
BatchID: 285941
Analytical Method: SW6020
Unit: µg/L
Sample ID: MB/LCS/LCSD-285941
Instrument: ICP-MS4, ICP-MS6
Matrix: Water
Extraction Method: SW3005
QC Summary Report for Metals
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Antimony ND 0.084 0.50 - - -
Arsenic ND 0.071 0.50 - - -
Barium ND 0.52 5.0 - - -
Beryllium ND 0.060 0.50 - - -
Cadmium ND 0.050 0.50 - - -
Chromium ND 0.78 2.0 - - -
Cobalt ND 0.051 0.50 - - -
Copper ND 0.63 1.5 - - -
Lead ND 0.19 0.50 - - -
Molybdenum ND 0.19 1.0 - - -
Nickel ND 0.33 0.50 - - -
Selenium ND 0.18 0.50 - - -
Silver ND 0.051 0.50 - - -
Thallium ND 0.067 0.50 - - -
Vanadium ND 0.19 0.50 - - -
Zinc ND 11 20 - - -
Surrogate Recovery
Terbium 540 500 108 70-130
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Page 21 of 30 ends

Quality Control Report
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" Client: Ninyo & Moore
Project: 403773004; Alameda Aquatic Center
Date Analyzed: 01/17/2024 - 01/18/2024
Date Prepared: 01/17/2024
WorkOrder: 2401970
BatchID: 285941
Analytical Method: SW6020
Unit: µg/L
Sample ID: MB/LCS/LCSD-285941
Instrument: ICP-MS4, ICP-MS6
Matrix: Water
Extraction Method: SW3005
QC Summary Report for Metals
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
Antimony 51 51 50 101 102 85-115 1.15 20
Arsenic 54 55 50 107 109 85-115 1.93 20
Barium 530 540 500 106 107 85-115 1.09 20
Beryllium 53 53 50 105 106 85-115 0.844 20
Cadmium 54 51 50 107 103 85-115 4.18 20
Chromium 52 53 50 105 105 85-115 0.405 20
Cobalt 54 54 50 108 107 85-115 0.351 20
Copper 54 55 50 108 109 85-115 1.08 20
Lead 52 53 50 104 105 85-115 1.33 20
Molybdenum 51 52 50 101 103 85-115 2.12 20
Nickel 54 55 50 108 109 85-115 1.56 20
Selenium 55 55 50 110 110 85-115 0.257 20
Silver 52 53 50 104 105 85-115 1.60 20
Thallium 53 54 50 106 108 85-115 1.90 20
Vanadium 53 54 50 107 109 85-115 1.82 20
Zinc 540 550 500 109 110 85-115 1.19 20
Surrogate Recovery
Terbium 550 550 500 110 110 70-130 0.463 20
CA ELAP 1644 • NELAP 4033ORELAP

Page 22 of 30 ends

Quality Control Report
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" Client: Ninyo & Moore
Project: 403773004; Alameda Aquatic Center
Date Analyzed: 01/23/2024
Date Prepared: 01/23/2024
WorkOrder: 2401970
BatchID: 286471
Analytical Method: SW8021B/8015Bm
Unit: µg/L
Sample ID: MB/LCS/LCSD-286471
Instrument: GC3
Matrix: Water
Extraction Method: SW5030B
QC Summary Report for SW8021B/8015Bm
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
TPH(g) (C6-C12) ND 14 50 - - -
MTBE ND 0.23 1.0 - - -
Benzene ND 0.093 0.50 - - -
Toluene ND 0.11 0.50 - - -
Ethylbenzene ND 0.093 0.50 - - -
m,p-Xylene ND 0.16 1.0 - - -
o-Xylene ND 0.089 0.50 - - -
Surrogate Recovery
aaa-TFT 11 10 112 74-117
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
TPH(btex) 60 59 60 101 99 78-116 1.53 20
MTBE 10 10 10 103 104 72-122 1.72 20
Benzene 10 11 10 104 106 81-123 2.38 20
Toluene 10 10 10 103 105 83-129 2.14 20
Ethylbenzene 10 11 10 103 105 88-126 2.20 20
m,p-Xylene 21 22 20 106 108 80-120 1.74 20
o-Xylene 10 11 10 105 107 80-120 1.57 20
Surrogate Recovery
aaa-TFT 9.9 9.9 10 99 99 74-117 0.843 20
CA ELAP 1644 • NELAP 4033ORELAP

Page 23 of 30 ends

Quality Control Report
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" Client: Ninyo & Moore
Project: 403773004; Alameda Aquatic Center
Date Analyzed: 01/22/2024
Date Prepared: 01/19/2024
WorkOrder: 2401970
BatchID: 286203
Analytical Method: SW7470A
Unit: µg/L
Sample ID: MB/LCS/LCSD-286203
Instrument: AA1
Matrix: Water
Extraction Method: SW7470A
QC Summary Report for Mercury
Analyte MB
Result
MDL RL
Mercury ND 0.13 0.20 - - -
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
Mercury 1.9 1.9 2 93 94 85-115 0.552 20
NELAP 4033ORELAP

Page 24 of 30 ends

Quality Control Report
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" Client: Ninyo & Moore
Project: 403773004; Alameda Aquatic Center
Date Analyzed: 01/24/2024
Date Prepared: 01/16/2024
WorkOrder: 2401970
BatchID: 285964
Analytical Method: SW8015B
Unit: µg/L
Sample ID: MB/LCS/LCSD-285964
Instrument: GC39A
Matrix: Water
Extraction Method: SW3510C
QC Report for SW8015B w/out SG Clean-Up
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
TPH-Diesel (C10-C23) ND 54 100 - - -
TPH-Motor Oil (C18-C36) ND 160 500 - - -
Surrogate Recovery
C9 510 625 82 70-130
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
TPH-Diesel (C10-C23) 1100 1100 1000 110 108 70-130 1.36 20 Surrogate Recovery
C9 530 520 625 85 83 70-130 1.76 20
CA ELAP 1644 • NELAP 4033ORELAP

Page 25 of 30 ends

McCampbell Analytical, Inc.
1534 Willow Pass Rd
Pittsburg, CA 94565-1701
(925) 252-9262

CHAIN-OF-CUSTODY RECORD
Page
Lab ID Matrix Collection Date Hold
Requested Tests (See legend below)
Report to:

Sean Igoe
1301 Marina Village Parkway, Suite 110
Alameda, CA 94501
(925) 708-2775 FAX: (510) 633-5646
PO:
01/16/2024
ClientSampID
Project: 403773004; Alameda Aquatic Center
WorkOrder: 2401970
1 of 1
Date Logged:

Date Received: 01/16/2024
1 2 3 4 5 6 7 8 9 10 11 12
Ninyo & Moore
Bill to:

Accounts Payable
Ninyo & Moore
1301 Marina Village Parkway, Suite 110
Alameda, CA 94501
Requested TAT: 5 days;
ClientCode: NMO
Email: [email protected]
EDF EQuIS Email HardCopy ThirdParty
[email protected]
Excel
J-flagCLIP
cc/3rd Party: [email protected];
WaterTrax
Detection Summary
Dry-Weight
A2401970-001 Water 1/15/2024 14:45MW-1 C B C A B
A2401970-002 Water 1/15/2024 12:45MW-2 C B C A B
Prepared by: Adrianna Cardoza
NOTE: Soil samples are discarded 60 days after receipt unless other arrangements are made (Water samples are 30 days).

Hazardous samples will be returned to client or disposed of at client expense.

Comments:
8260_W CAM17MS_6020_TTLC_W G-MBTEX_W HG_7470A_W
PRDisposal Fee TPH(DMO)_W
1 2 3 4
5 6 7 8
9 10
Test Legend:
11 12
The following SampIDs: 001B, 002B contain testgroup Multi Range_W.

Project Manager: Jennifer Lagerbom

Page 26 of 30 ends

LabID ClientSampID Collection Date
& Time
Date Logged:

TATMatrix Test Name Containers
/Composites

WORK ORDER SUMMARY
Work Order: 2401970
Comments:

Client Name: NINYO & MOORE Project: 403773004; Alameda Aquatic Center QC Level: LEVEL 2
HoldDry-
Weight
Sub
Out
Bottle &
Preservative
1/16/2024
Sediment
Content
EDF EQuIS Email HardCopy ThirdPartyExcel J-flagCLIP
Sean IgoeClient Contact:
[email protected]'s Email:

WaterTrax
Test Due DateHead
Space
U**
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" 001A MW-1 1/15/2024 14:45 5 daysWater SW8260D (VOCs) 2 VOA w/ HCl None1/23/2024 001B MW-1 1/15/2024 14:45 5 daysWater Multi-Range TPH Gas, Diesel, and Motor Oil
4 2 VOAs w/HCL + 2-
aVOAs (multi-range)
None1/23/2024
001C MW-1 1/15/2024 14:45 5 daysWater SW7470A (Mercury) 1 250mL HDPE w/ HNO3
None1/23/2024
5 daysSW6020 (CAM 17) <Antimony,
Arsenic, Barium, Beryllium, Cadmium,
Chromium, Cobalt, Copper, Lead,
Molybdenum, Nickel, Selenium, Silver,
Thallium, Vanadium, Zinc>
None1/23/2024
002A MW-2 1/15/2024 12:45 5 daysWater SW8260D (VOCs) 2 VOA w/ HCl None1/23/2024 002B MW-2 1/15/2024 12:45 5 daysWater Multi-Range TPH Gas, Diesel, and Motor Oil
4 2 VOAs w/HCL + 2-
aVOAs (multi-range)
None1/23/2024
002C MW-2 1/15/2024 12:45 5 daysWater SW7470A (Mercury) 1 250mL HDPE w/ HNO3
None1/23/2024
1 of 2Page
* STLC and TCLP extractions require 2 days to complete; therefore, all TATs begin after the extraction is completed (i.e., One-day TAT yields results in 3 days from sample submission).

NOTES:
- MAI assumes that all material present in the provided sampling container is considered part of the sample - MAI does not exclude any material from the sample prior to sample preparation unless requested in writing by the client.

U** = An unpreserved container was received for a method that suggests a preservation in order to extend hold time for analysis. - Organic extracts are held for 40 days before disposal; Inorganic extract are held for 30 days. - ISM prep requires 5 to 10 days to complete; therefore, all TATs begin after the extraction is completed (i.e., One-day TAT yields results in 6 to 11 days from sample submission). Due date listed on WO summary will not accurately reflect the time needed for sample preparation.

Page 27 of 30 ends

LabID ClientSampID Collection Date
& Time
Date Logged:

TATMatrix Test Name Containers
/Composites

WORK ORDER SUMMARY
Work Order: 2401970
Comments:

Page 28 of 30 ends

Page 29 of 30 ends

Sample Receipt Checklist
McCampbell Analytical, Inc.
1534 Willow Pass Road, Pittsburg, CA 94565-1701
Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected]"When Quality Counts" Client Name: Ninyo & Moore
WorkOrder №: 2401970
Date Logged: 1/16/2024
Logged by: Adrianna CardozaMatrix: Water
Carrier: Antonio Mason (MAI Courier)
Shipping container/cooler in good condition? Yes No
Custody seals intact on shipping container/cooler? Yes No NA Samples Received on Ice? Yes No
Chain of custody present? Yes No
Chain of custody signed when relinquished and received? Yes No Chain of custody agrees with sample labels? Yes No
Samples in proper containers/bottles? Yes No
Sample containers intact? Yes No
Sufficient sample volume for indicated test? Yes No
NAAll samples received within holding time? Yes No
NASample/Temp Blank temperature
Yes No NAZHS conditional analyses: VOA meets zero headspace requirement (VOCs, TPHg/BTEX, RSK)?
pH acceptable upon receipt (Metal: <2; Nitrate 353.2/4500NO3:
<2; 522: <4; 218.7: >8)?
Yes No NA
Temp: 1.1°C
Chain of Custo dy (COC) Info rmatio n
Yes NoSample IDs noted by Client on COC?
Yes NoDate and Time of collection noted by Client on COC? Yes NoSampler's name noted on COC?
Sample Receipt Inform ation
Sample Preservatio n and Hold Time (HT) Informatio n
Sample labels checked for correct preservation? Yes No
Project: 403773004; Alameda Aquatic Center
(Ice Type: WET ICE )
Comments:
pH tested and acceptable upon receipt (200.7: ≤2; 533: 6 - 8; 537.1: 6 - 8)?
Yes No NA
UCMR Samples:

Free Chlorine tested and acceptable upon receipt (<0.1mg/L) [not applicable to 200.7]?
Yes No NA
Date and Time Received: 1/16/2024 15:30
Received by: Adrianna Cardoza
COC agrees with Quote? Yes No NA
Custody seals intact on sample bottles? Yes No NA

Page 30 of 30 ends

Ninyo & Moore | 1100 Atlantic Avenue, Alameda, California | 403773006 | May 13, 2024

APPENDIX C

Groundwater Modelling Data

Formatted Hydraulic Test Data and Graphic Plots
Elapsed Time
(sec)
Reading
(ft)
Displacement
(ft)
Elapsed Time
(sec)
Reading
(ft)
Displacement
(ft)
0 53.11 1.68 0 52.15 2.58
1 53.18 1.61 1 52.40 2.32
2 53.30 1.48 2 52.42 2.31
3 53.43 1.36 3 52.37 2.35
4 53.54 1.24 4 52.28 2.44
5 53.64 1.14 5 52.10 2.62
6 53.63 1.15 6 52.14 2.58
7 53.71 1.08 7 52.22 2.50
8 53.76 1.02 8 52.46 2.26
9 53.80 0.98 9 52.52 2.20
10 53.84 0.94 10 52.60 2.12
20 54.14 0.65 20 53.22 1.50
30 54.30 0.48 30 53.58 1.14
40 54.40 0.39 40 53.83 0.89
50 54.46 0.32 50 54.01 0.71
60 54.50 0.28 60 54.14 0.58
70 54.54 0.25 70 54.24 0.48
80 54.56 0.22 80 54.32 0.41
90 54.59 0.20 90 54.37 0.35
100 54.60 0.18 100 54.42 0.31
200 54.69 0.09 200 54.58 0.14
300 54.72 0.06 300 54.63 0.09
400 54.74 0.04 400 54.67 0.05
500 54.75 0.01 500 54.70 0.03
600 54.76 0.00 600 54.72 0.01
Test 1 Test 2

0.0 0.5

1.0 1.5

2.0 2.5

3.0 0 100 200 300 400 500 600 700
Displacement (ft)
Elapsed Time (sec)
Test 1

0.00 0.50

1.00 1.50

2.00 2.50

3.00 0 100 200 300 400 500 600 700
Displacement (ft)
Elapsed Time (sec)
Test 2
Output for Hydraulic Conductivity Analyses ‐ Low Value

Output for Hydraulic Conductivity Analyses ‐ High Value

Groundwater Model Static Water Level Contours and Profile

Groundwater Model Pumping Water Level Contours and Profile

Description

3. Description

APPENDIX B

1301 Marina Village Parkway, Suite 110 | Alameda, California 94501 | p. 510.343.3000

ninyoandmoore.com

Appendix D:

Removal Action
Report

Jean Sweeney Open Space Park
Removal Action Completion Report
Prepared for: City of Alameda
Client Ref: 102.01422.00001

April 2018
Revised - July 2018

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR i Revised - July 2018 Remov
al Action Completion Report
Prepared for:

City
of Alameda
2263 Santa Clara Ave.

Alameda, California 94501
This document has been prepared by SLR International Corporation. The material and data in this report were prepared under the supervision and direction of the undersigned.

Pert h Silvers
Staff Scientist
Mar k Trevor, P.G.

Senior Geologist

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR ii Revised - July 2018

CONTENTS

1. INTRODUCTION ........................................................................................................................ 1

1.1 Purpose .................................................................................................................................. 1

1.2 Project Objectives .................................................................................................................. 1

2. BACKGROUND .......................................................................................................................... 2

2.1 Overview ................................................................................................................................ 2

2.2 Site History ............................................................................................................................. 2

2.3 Regional and Local Geology and Hydrology ........................................................................... 3

3. PREVIOUS ENVIRONMENTAL WORK .......................................................................................... 4

3.1 Phase I Environmental Assessment ....................................................................................... 4

3.2 PEA, RI, and Site Investigation Reports .................................................................................. 4

3.3 Other Site Characterization Efforts ........................................................................................ 5

3.4 2016 Remedial Investigation .................................................................................................. 6

3.4.1 Field Activities ........................................................................................................ 6

3.4.2 Results .................................................................................................................... 7

4. REMOVAL ACTION OBJECTIVES AND GOALS ............................................................................... 9

4.1 Removal Action Objectives .................................................................................................... 9

4.1.1 Removal Action Goals .......................................................................................... 10

4.2 Remedial Action Alternative Implementation ..................................................................... 10

5. REMOVAL ACTION .................................................................................................................. 12

5.1 Notifications ......................................................................................................................... 12

5.2 Health and Safety Plan ......................................................................................................... 12

5.3 Field Activities ...................................................................................................................... 12

5.3.1 Field Oversight and Reporting ............................................................................. 12

5.4 Excavation of Impacted Soil, RailRoad Ties, and Subsurface Concrete Structures .............. 13

5.4.1 Construction Equipment ...................................................................................... 13

5.4.2 Stockpiling Procedures ........................................................................................ 13

5.5 Dust Control ......................................................................................................................... 14

5.6 Air Monitoring During Excavation ................................ ........................................................ 15

5.7 Confirmation Sampling......................................................................................................... 15

5.7.1 Silica Gel Clean UP ............................................................................................... 16

5.7.2 Over-Excavation and Additional Confirmation Sampling .................................... 17

5.8 Waste Characterization and Disposal .................................................................................. 18

6. CAP and CONSOLIDATION AREA .............................................................................................. 19

6.1 Cap and COnsolidation Area Construction ........................................................................... 19

6.2 Covenant and Environmental Restriction on Property ........................................................ 19

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR iii Revised - July 2018

6.3 Cap Operation and Maintenance ......................................................................................... 20

6.3.1 Summary of Operation and Maintenance Plan ................................................... 20

7. VARIANCES TO THE RAW ......................................................................................................... 21

8. CONCLUSIONS ........................................................................................................................ 22

9. REFERENCES ........................................................................................................................... 23

FIGURES
Figure 1 Site Vicinity Map
Figure 2 Site Plan Showing Excavation Areas
Figure 3 Site Plan Showing Former Maintenance Areas of Excavation Figure 4 Site Plan Showing Eastern Lead Impacted Areas of Excavation Figure 5 Detail Map of Excavation and Sampling of Area A Figure 6 Detail Map of Excavation and Sampling of Area B Figure 7 Detail Map of Excavation and Sampling of Area C Figure 8 Detail Map of Excavation and Sampling of Area D Figure 9 Eastern Lead Impacted Area L5 Soil Confirmation Samples Figure 10 Eastern Lead Impacted Areas L3 & L4 Soil Confirmation Samples Figure 11 Eastern Lead Impacted Areas L1 & L2 Soil Confirmation Samples Figure 12 Site Plan Showing Cap Cross Section

TABLES
Table 1 RAO Exceedance Summary
Table 2 Average Concentrations of PM10 during Excavation activities in Milligrams per Meter Cubed
Table 3 Summary of Former Maintenance Area Confirmation Sample Analytical Exceedances and Re-Sampling Results
Table 4 Eastern Lead Impacted Area L2 Confirmation Sample Analytical Results Table 5 Former Maintenance Area Confirmation Samples Full Analytical Results Table 6 Eastern Lead Impacted Soil Confirmation Samples Full Analytical Results

APPENDICES

Appendix A Laboratory Analytical Reports
Appendix B Site Photo Log
Appendix C Waste Manifests, Bills of Lading
Appendix D Detailed Air Monitoring Data

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR iv Revised - July 2018

ACRONYMS
ARARs Applicable or Relevant and Appropriate Requirements ABL Alameda Belt Line
ACEH Alameda County Environmental Health
AOPC Area of Potential Concern
ASTs Aboveground Storage Tanks
bgs below ground surface
CLS CLS Environmental Services
CCR California Code of Regulations
COCs Chemical of Concern
DTSC Department of Toxic Substances Control
DTSC SLs Department of Toxic Substances Control Modified Screening Levels EPA Environmental Protection Agency
ESA Environmental Site Assessment
ESLs Environmental Screening Levels
HHRA Human Health Risk Assessment
HERO Human and Ecological Risk
HSP Health and Safety Plan
JSOSP Jean Sweeney Open Space Park
OSHA Occupational Safety and Health Administration
PAHs Polynuclear Aromatic Compounds
PEA Prior Environmental Assessment
P.G. Professional Geologist
RAOs Remedial Action Objectives
RAW Removal Action Workplan
RECs Recognized Environmental Conditions
RI Remedial Investigation
SGCU Silica Gel Cleanup
SLR SLR International Corporation
TBC To Be Considered
TCE Trichloroethylene
TSI Targeted Site Investigation
TPH Total Petroleum Hydrocarbons
TPH-D TPH as Diesel
TPH-G TPH as Gasoline
TPH-MO TPH as Motor Oil
URSGWC URS/Greiner Woodward Clyde
USCS Unified Soil Classification System
USGS United States Geological Survey
UST Underground Storage Tank
VOCs Volatile Organic Compounds

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 1 Revised - July 2018

1. INTRODUCTION

1.1 PURPOSE
On behalf of The City of Alameda, SLR International Corporation (SLR) has prepared this Removal Action Completion Report (RACR) documenting the results of the soil removal activities performed at Jean Sweeney Open Space Park (JSOSP) located at 1925 Sherman Ave in Alameda, California (Figure 1, Site) .

The removal action was performed in accordance with the Final Removal Action Work plan (RAW), dated December 7, 2016 (SLR International Corp., SLR, 2016), which was approved by the Department of Toxic Substances Control (DTSC) on December 6, 2016.Removal activities consisted of the excavation of petroleum hydrocarbon contaminated soil in the western side of the Site and shallow lead - contaminated soil in the eastern side of the Site.

1.2 PROJECT OBJECTIVES
Project objectives were established that are protective of human health and the environment and reduce the potential for exposure to the COCs in media encountered at the Site. These include:

• Minimize or eliminate potential exposure of humans to contaminants at the site; these are primarily petroleum hydrocarbons and lead through direct contact or ingestion. • Reduce the human health -based risks associated with onsite lead and petroleum hydrocarbon contamination in soil to a level that is acceptable for recreational land use. Com mercial DTSC screening levels and EPA Regional Screening Levels (in the absence of DTSC screening levels) are protective of this land use.
• Provide for a Site that can be redeveloped for recreational/park use. • Minimize the potential for chemicals of concern in soil to impact groundwater. • Remove residual railroad ties which could be a potential source of creosote or PAHs to soil or groundwater
• Remove residual debris associated with the former operations or tenants • Remove sub-surface concrete structures relate d to the maintenance pits and the Wood Street foundation.

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 2 Revised - July 2018

2. BACKGROUND

2.1 OVERVIEW
The Site consists of 27 acres of land comprised of several parcels of a former rail yard and maintenance facility. The Site is located within ¼ mile of the Oakland Inner Harbor portion of the San Francisco Bay.

The planned development for the Site is a public park with a bike path, walking path, and greenspace by the City of Alameda.

Prior to construction activities the Site was vacant and almost all the original structures had been removed in preparation for building the park. Several concrete pads, foundations likely from a former housing development, and other ruins remained on the Site.

2.2 SITE HISTORY
The Site was historically operated as a rail yard and maintenance facility by the Alameda Belt Line railway (ABL). In 1918, the City of Alameda owned the Site and reportedly constructed a belt line railroad on the Site. It was initially managed by the City’s Board of Public Utilities and operated by Southern Pacific Railroad. In 1924, the City entered into a contract (the “1924 Agreement”) with Western Pacific Railroad Company and Atchison, Topeka and Santa Fe Railway Company, with ABL acting as the belt line operator.

Box cars, open top gondolas, flat cars, and tank cars, primarily from customers within the network of rail spurs between Grand Avenue and Sherman Street, utilized the tracks. The rail yard parcels were developed with several buildings as early as 1949. The maintenance building and one other building reportedly were located at the west end of the parcels. Maintenance cranes with two underlying maintenance pits were located within the maintenance bui lding, with railroad tracks running into the building to provide access for the rail cars.

The placement of tracks appears to be extensive as early as 1939 (see aerial photography in Blackie, 2010). By 1946, 75% of the yard was occupied by rail lines, spurs or other tracks. Only the southwestern portion of the rail yard appears to be unoccupied by tracks. This suggests that the majority of the rail yard was also covered in several feet of ballast as early as the 1940’s.

Several smaller structures and two aboveground storage tanks (ASTs) were also observed in the vicinity of the maintenance building. One AST reportedly was a diesel tank and the second was thought to contain water. By 1959, two additional buildings were present on the eastern side of the pro perty, a Yard House, and a small shed (Figure 2 , RAW). Soil piles were reportedly visible on the property in a 1969 aerial photograph , URS/Greiner Woodward Clyde (URSGWC, 1999a). The maintenance building burned in 1980 and the Yard House was relocated in t he early 1990s, to facilitate realignment of adjacent Sherman Street.

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 3 Revised - July 2018 ABL reportedly ceased operation of the belt line on the Site in 1998. In 1999, the City of Alameda began proceedings to repurchase the ABL property under terms outlined in the 1924 agr eement, completing the property transaction in 2010. Union Pacific Railroad continued to run cars until 2001 (Blackie, 2010).

The majority of the railroad ties were removed from the parcels in 2004 and 2005; the rails having been removed prior to that time (presumably between 2001 and 2004). The maintenance pits are believed to have been filled (TSI, 2014). Debris remaining on the Site, including debris illegally dumped, also was removed at that time. It is unclear when the majority of the ballast rock was removed. It was reportedly sampled by URS in 1999, but more recent observations (Blackie, 2010, TSG, 2014, and SLR in 2015) all indicate a mix of coarse rock and silt on the surface with significant young vegetation. This suggests the majority of the “clean” ballast rock had been stripped away. Areas of debris, concrete and asphalt rubble; assorted trash and rail ties remain across the parcel as of late 2015.

The northern portion of the Site was not occupied by rail lines or other railyard buildings. A strip of land approximately 100 -ft wide (north -south) and extending the entire east- west length of the Site was occupied by rectangular buildings associated with what appears in aerial photos to be a shipbuilding employee housing development. This use is consi stent with known operations of the Alameda Works Shipyard, which was located north of the Site in what is now the Marina Village development. The Alameda Works Shipyard (later Bethlehem Shipbuilding Corporation) was one of the largest wartime shipyards in the country and included on -site worker housing. The yard closed in 1956. Several of the concrete pads associated with the former buildings were still visible in the northeast portion of the Site (see Figure 2, RAW). This area was used for tenant storage until the late 1980’s, but the majority of the former development appears to have been a vacant lot from the 1950s to present.

2.3 REGIONAL AND LOCAL GEOLOGY AND HYDROLOGY
The Site is located along the eastern margin of the San Francisco Bay, at an elevation of approximately 16 feet above mean sea level (USGS, 1980). Previous investigations conducted at the Site indicate that the subsurface consists of fill material, which is underlain, in turn, by Bay Mud and sand deposits to depths of greater than 200 feet ( URS Greiner Woodward Clyde [URSGWC], 1999b). The fill material, consisting of sandy clay and coarse ballast gravel at the surface, is up to 5.0 feet thick and reportedly increases in thickness from south to north. Beneath the fill, the soil types encountered at the Site consist of fine-grained silts and clays, and coarse-grained sands and gravels to depths of approximately 16 bgs.

Groundwater at the Site occurs at depths ranging from approximately 4 to 8 bgs. In some areas (e.g. the Wood Street Foundation) saturated soil was not encountered as deep as 15 bgs. However, in the Maintenance Area, groundwater was encountered at 4 bgs. Due to the man -made surface grade and heterogeneous nature of shallow soil, it is probable that perched groundwater zones are pres ent in some areas. Based on hydrogeological information available from nearby sites (CRA, 2013 and AARS, 2004, SLR 2016 ), groundwater in the vicinity of the Site occurs at a depth of approximately 5 to 7 bgs.

Groundwater flow beneath the Site may be variable, but based on the above referenced reports is likely to flow north to northwest in the direction of the nearest surface water body.

Site characterization has revealed the presence of chemicals of potential concern in soil and groundwater at the Site. Removal Action Objectives (RAOs) have been developed based upon the current environmental conditions and reasonably anticipated future uses of the Site.

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Jean Sweeney Open Space Park - RACR 4 Revised - July 2018

3. PREVIOUS ENVIRONMENTAL WORK
A summary of previous Site activities and results are discussed in the sections below.

3.1 PHASE I ENVIRONMENTAL ASSESSMENT
A Phase I Environmental Site Assessment conducted by URS/Greiner Woodward Clyde (URSGWC) in 1999 (URSGWC, 1999a). Recognized environmental concerns identified b y the URSGWC Phase I assessment included: historical use of paint, gasoline and diesel, waste oil, solvents, and lubricating fluids, possible release of hazardous materials in maintenance pit at west end of the Site, suspected petroleum stained surface soils in location of former rail spurs into maintenance building, petroleum stains in tenant spaces, stains in ballast rock areas in rail yard, potential hazardous materials in stockpiles of soil along northern portion of Site, possible lead-based paint on marine equipment within one tenant space, and a potential fuel release from a former UST. No other reference to this former UST was found in the report. Soil, ballast rock, stockpiled soil, and groundwater characterization were recommended, as was an asbestos survey of the Yard House building.

In 2010, the City of Alameda retained Belinda Blackie to perform a Phase I ESA of the Alameda Belt Line Parcels. The assessment included nine non -contiguous parcels, comprising approximately 39 acres of land. The assessment included a number of Recognized Environmental Conditions (REC)s. Only those related to the Site are presented here:
• The possible presence of impacted soil near the former railroad tracks; the possible presence of impacted soil where the historic ABL maintenance building burned; • The possible presence of elevated concentrations of lead and arsenic in dredge fill materials placed on Site parcels;
• The possible presence of contaminants on the rail yard parcels, resulting from the import of potentially impacted soil from other vicinity properties.

3.2 PEA, RI, AND SITE INVESTIGATION REPORTS
A 1999 Phase II report (URSGWC 1999b), summarized results of soil and groundwater characterization activities conducted to follow up on potential concerns identified by the earlier Phase I assessment.

Phase II activities consisted of the advancement of 12 borings. At each boring location, soil samples were collected at the surface (0 to 1 bgs) and subsurface (2 to 3 feet bgs). The soil samples were generally spread acros s the Site, however two soil samples were collected outside the concrete slab footprint associated with the Maintenance Pits and two were collected on the east and west side of the former AST.

A 1999 remedial investigation report (URSGWC, 1999c) summarized results of additional ballast rock and groundwater characterization activities conducted to evaluate the extent of impacted media detected in the previous Phase II investigation. The investigation included analysis of 14 additional ballast rock samples in the general location of the sample previously demonstrating an elevated concentration of

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 5 Revised - July 2018 lead; analysis of five additional grab groundwater samples collected in the general location of the sample previously containing elevated diesel and motor oil concentrations; and analysis of five additional grab groundwater samples collected in the general location of the sample previously containing the elevated chlorinated hydrocarbons cis- and trans-1,2-DCE and TCE.

The remedial investigation report recommended no further evaluation of ballast rock or petroleum hydrocarbons and chlorinated solvents in groundwater where previously detected. The report did recommended removal of the remaining rail ties and tenant materials and demolition of the two maintenance pits, followed by collection of soil and possibly groundwater samples from the vicinity of the pits. There is no documentation that any of the recommendations were implemented.

In 2014, a Targeted Site Investigation conducted a targeted soil and groundwater investigation focusing on 6 Areas of Potential Concern (AOPCs). The TSI concluded that the only remaining constituents of concern at the Site are TPH -D, TPH -MO and lead in isolated Site soils and that previous groundwater contamination had attenuated. The repo rt recommended either soil removal in the isolated areas of contaminant exceedance (specifically, portions of the former tenant area, maintenance building, AST area and yard area); or in -place management of contaminated soil via capping. The report recommended no further action relating to groundwater

1. 3.3 OTHER SITE CHARACTERIZATION EFFORTS
In October 2006, CLS Environmental Services (CLS) responded to a spill along the north -eastern edge of the Alameda Belt Line Railway Site. CLS observed two overturned 55 -gallon drums which had released approximately 100 -gallons of waste oil/hydraulic oil o nto Site soils. According to the report, the spill appeared to encompass an area that extended approximately 27 feet from the point of origin. The exact location of the spill event as documented in the April 2007 Report is not precisely known. A backhoe was used to excavate approximately 90 tons of impacted soils. Impacted soil was transported under hazardous materials waste manifest by MP Environmental and disposed of at Chemical Waste Management’s facility in Kettleman City, CA. The excavation cavity was then backfilled with soil stockpiled in another area of the Site. The location of the spill is shown approximately on a map. None of the borings were surveyed. The map does not have any other features that may help approximate the location of the spill.

A Remedial Investigation (RI) work plan was approved by DTSC in April 2016 for further Site characterization in advance of removal action activities. The work plan preparation process resulted in the delineation of a number of Areas of Potential Concern, with which future Site investigation could be conducted. The AOPCs defined for the 2016 RI followed from those developed during the 2014 Targeted Site Investigation and are as follows:
• Former Maintenance Yard Area Consisting of:
− Former 20,000 -Gallon Abovegr ound Storage Tank (AST) (Combined with Former Maintenance Building)
− Former Maintenance Building (combined with AST Area)

1 SLR conducted its Remedial Investigation Work Plan (Workplan) dated April 6, 2016 to verify the state of groundwater contamination at the Site,

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Jean Sweeney Open Space Park - RACR 6 Revised - July 2018 − 8th Street Pad
• Yard House Location
• Former Barracks Area Consisting of
− Former Tenant Area
− Spill Excavation Area
− Soil Stockpiles
− Former Barracks Area
• Site-wide (includes Ballast Rock discussion) including:
− Eastern Lead-Impacted Area
• Wood Street Foundation
• Current Railroad Ties Area

3.4 2016 REMEDIAL INVESTIGATION
The following sub-sections provide details of the 2016 Remedial Investigation field activities, laboratory testing, and results. The work described in the following sections was conducted in general accordance with the DTSC-Approved Remedial Investigation Work Plan (Workplan) dated April 6, 2016.

3.4.1 FIELD ACTIVITIES
Field activities were conducted between March and June 2016 and included the following elements • Pre-field work site reconnaissance, sample location marking and USA clearance, • Selective brush clearance for geophysical survey access • Geophysical survey in select locations as described in the Work plan • Exploratory excavation of structure pads or foundations in the Maintenance Area and Wood Street Foundation Area.
• Test pit exploration of ballast
• Soil borings for soil and groundwater sampling.

A limited geophysical survey was conducted on April 6, 2016. The results were described in a technical memorandum submitted to DTSC on April 13, 2016. The principal result was the discovery of an underground metal vessel and associated piping near the 8th Street Pad. The ot her potential targets did not ultimately result in significant findings.

On April 8, 2016, a ballast mapping exercise was conducted as described in the April 12, 2016 technical memorandum. The memo identified areas of residual ballast and estimated thickn ess and volume. The memo recommended the installation of 10 test pits for the purpose of evaluating ballast thickne ss and residual contamination.

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 7 Revised - July 2018 The main field activities began with test- pitting on April 22, 2016. Test pitting was conducted using a standard backhoe. A total of 10 test pits were advanced for the purpose of ballast investigation and sampling. Several additional investigatory test pits were excavated in the Maintenance Area AOPC for the purpose of visually inspecting the condition concrete pads, maintenance pits and geophysical investigation target.

A total of 76 soil borings were advanced by a track -mounted direct push drill rig between April 25 and April 28, 2016. Soil borings were advanced for the purpose of soil and groundwater sample co llection.

All borings were logged in accordance with the Unified Soil Classification System (USCS ) (ASTM, 1985) and periodically screened for VOCs.

An excavator was used to conduct subsurface investigations of the maintenance pits in the Maintenance Area AOPC and the Wood Street Foundation AOPC.

All samples collected during soil and groundwater sampling activities were labeled with the site name, sample number, sample depth, personnel initials, and date and time of collection. After the samples are labeled and documented in the chain of custody record, they were placed in a chilled cooler for transportation to a California-certified analytical laboratory.

Duplicate samples were collected in the field at a rate of five percent of the total number of samples to be collected for the event, excluding quality control samples. Duplicates were collected by filling additional sample container(s) just after collection of the original sample; to avoid aeration and exposure to the environment. Groundwater was not split between containers.

3.4.2 RESULTS
The RAOs developed for the Site are based on commercial/industrial land use, as presented and discussed in Section 4.0. In general, the 2016 RI investigation resulted in RAO exceedances for soil in the Maintenance Area, the Eastern Lead Impacted Area, the Site Wide AOPC, Wood Street Foundation AOPC and the former Tenant Area. No other AOPC yielded sample results above RAOs. The locations of RAO exceedances, nature of soil contamination, and AOPC, are presented in the following table. It should be noted that the RAO exceedances listed in Table 1 include all data collected at the Site since 1999. RAO exceedances for the RAW were based on the findings in the 2016 RI investigation.

The results of exploratory test pits in the vicinity of concrete pads and foundations in the Maintenance Area (Hydrocarbon Impacted Area) indicated the presence petroleum hydrocarbon- impacted soil in these locations. Soil samples collected from these areas indicated concentrations of TPH -D and TPH-MO with maximum concentrations of 660 and 4,400 mg/kg respectively. Excavation of the 8th Street Pad indicated the presence of petroleum-impacted soil to a depth of at least 5 feet below grade (see figures 4 through 7). The maximum Bunker-C concentration from this area was 71,000 mg/kg.

Soil analytical results from the 2016 remedial investigation are presented in the RAW . The highest concentrations of COCs were encountered in the Maintenance Area AOPC, with minor exceedances for either lead or PAHs in the Lead Impacted and Former Tenant areas, respectively. Evaluation and cleanup of groundwater is not included in RAW for this project which addresses soil related concerns only.

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 8 Revised - July 2018 The results of the ballast investigation s uggest that residual ballast is negligible and no ballast -related soil contamination was detected. It is unlikely the remaining ballast will need to be removed from the Site as it is, in most areas, thoroughly mixed into the underlying formation and appears to contain no detectable levels of COCs.

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Jean Sweeney Open Space Park - RACR 9 Revised - July 2018

4. REMOVAL ACTION OBJECTIVES AND GOALS
Based on the RAOs, removal goals were developed that establish specific concentrations of chemicals in soil that are protective of both human health and the environment. Sp ecific removal goals have been developed for the Site from: (1) information obtained during previous investigations at the Site; and (2) risk management decisions based upon the proposed future use of the Site. Information used to develop these removal goals included laboratory analytical results, geologic data, and a Site-specific risk evaluation, as applicable.

In addition, a review of pertinent laws, regulations, and other criteria was performed to identify applicable or relevant and appropriate requirements (ARARs) and other criteria to be considered (TBC) for remediating the Site.

Discussions of regulatory requirements, an assessment of human health risks, and the removal goals developed for the Site are presented below.

4.1 REMOVAL ACTION OBJECTIVES
Removal action objectives (RAOs) have been established that are protective of human health and the environment and reduce the potential for exposure to the COCs in media encountered at the Site.

These include:
• Minimize or eliminate potential exposure of humans to contaminants at the Site; these are primarily petroleum hydrocarbons and lead through direct contact or ingestion. • Reduce the human health -based risks associated with onsite lead and petroleum hydrocarbon contamination in soil to a level that is acceptable for recreational land use. Commercial DTSC screening levels and RSLs (in the absence of DTSC screening levels) are protective of this land use.
• Provide for a Site that can be redeveloped for recreational/park use. • Provide for two small portions of the Site to be used for fruit trees. • Minimize the potential for chemicals of concern in soil to impact groundwater. • Remove residual railroad ties which could be a potential source of creosote or PAHs to soil or groundwater
• Remove residual debris associated with the former operations or tenants • Remove sub-surface concrete structures related to the maintenance pits and the Wood Street foundation.

The removal goals developed and adopted for contaminated media at the Site are responsive to these RAOs.

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Jean Sweeney Open Space Park - RACR 10 Revised - July 2018

4.1.1 REMOVAL ACTION GOALS
The removal goals for the primary contaminants at the Site for the scope of work documented in this RACR were to contain impacted soil Site-wide that:

1. Exceeds the RWQCB Environmental Screening Levels (ESLs) (December 2013) for petroleum hydrocarbons (Table A-2); and

2. Exceeds the DTSC’s Office of Human and Ecological Risk (HERO) Human Health Risk Assessment (HHRA) Note Number 3 (January 2016) “DTSC -modified Screening Levels” Screening Levels for Commercial/Industrial Soil (DTSC-SLs, June 2016) for lead.

The RAOs established in the RAW for soil in the Former Maintenance Area of the Site are based on the San Francisco Bay Regional Water Quality Control B oard’s (RWQCB’s) Environmental Screening Levels (ESLs) for where shallow soil groundwater is a current or potential source of drinking water interim final as of December 2013 - Table A-2 Commercial/Industrial Land Use. The ESLs are the following:

• Diesel Range Organics (DRO) at 110 (milligrams per kilogram) mg/kg • Motor Oil at 500 mg/kg
• Bunker C at 500 mg/kg
The RAOs established in the RAW for the soil cleanup level for the Eastern Lead Impacted Soil A rea of the Site are based on the DTSC modified screening levels (DTSC SLs) for Commercial/Industrial soil as of June 2016 as part of the DTSC’s Human and Ecological Risk (HERO) and Human Health Risk Assessment (HHRA) Note number 3. The DTSC SLs are the following:
• Total Lead at 320 mg/kg
Other contaminants present at the Site, which are collocated with TPH, include naphthalene and PCBs.

Concentrations of arsenic and PAHs which exceed RAOs were detected but are present at levels consistent with background and do not require additional evalu ation. A summary of analytical results for samples taken as part of the RAW are presented in Figures 4 through 10 and Table 3. Tables 5 and 6 contain full analytical results. Appendix A contains original laboratory analytical reports.

4.2 REMEDIAL ACTION ALTERNATIVE IMPLEMENTATION
Three remedial action alternatives were evaluated for the Site in the RAW . Excavation and on -Site containment was the preferred and chosen removal action for achieving the removal action objectives.

The rationale for this choice was provided in the DTSC-approved RAW

2. The field activities were implemented using readily available standard construction equipment. The area of hydrocarbon excavation and area of lead excavation was adequately documented to be below applicable ESLs and DTSC SLs respectively. Soil designated as contaminated but not saturated with

2 SLR, 2016. Removal Action Work Plan – Soils Only Jean Sweeney Open Space Park, Oakland, CA. December.

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 11 Revised - July 2018 hydrocarbons and soil containing low levels of lead were taken and placed in an HDPE liner set at the bottom of a trench which served as the Consolidation Area built in the area underneath the location of the planned bike path in accordance with DTSC guidance. The liner was sealed with adhesive and capped with aggregate base (AB), a geotextile membrane, and asphalt for the bike path. Soil and debris saturated with hydrocarbon mat erial was stockpiled and placed on a polyethylene plastic liner (visqueen), covered with another sheet of visqueen liner that was weighted. Stockpiled soil containing saturated material was then mixed with excess impacted (non-saturated) soil from excavation area C for purposes of stabilization . The soil was the n placed in trucks contracted by Dirt Shop, Inc. for transportation and disposal at an appropriate off-Site facility for disposal.

Periodic inspections of the Consolidation Area and the Cap will be required for settlement, cracking, ponding of liquids, erosion, and naturally occurring invasion by deep -rooted vegetation and to ensure that the land use has not changed. Additionally, precautions will have to be taken to ensure that the integrity of the Consolidation Area and the Cap is not compromised by land use activities.

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Jean Sweeney Open Space Park - RACR 12 Revised - July 2018

5. REMOVAL ACTION
The removal activities were performed by a California- certified contractor with supervision by a California-registered professional geologist (P.G.).

5.1 NOTIFICATIONS
Final approval for remedial activities was given by the Department of Toxic Substances Control (DTSC) on December 6, 2016. A work notice was given to community members in July 2017. Prior to starting ground disturbance activities, SLR personnel notified Underground Services Alert for utility clearance.

5.2 HEALTH AND SAFETY PLAN
A Site-specific Health and Safety Plan (HSP), was developed by SLR to inform SLR personnel and contractors under the direct oversight of SLR, of the potential hazards associated with implementing the RAW and to minimize exposure to Site contaminants. The HSP was prepared in order to meet federal and California Occupational Safety and Health Administration (OSHA) standards for hazardous waste operations (29 CFR 1910.120 and 8 CCR 5192), and requirements of the California Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65).

The general construction contractor hired by the City of Alameda to perform the removal work (McGuire & Hester) was required to develop their own HSP which established health and safety protocols for their employees, in accordance with the above-mentioned standards.

5.3 FIELD ACTIVITIES

5.3.1 FIELD OVERSIGHT AND REPORTING
During removal action activities, SLR personnel were responsible for observing excavation, off-haul, and grading activities ; perimeter air monitoring and sampling ; monitoring health and safety measures ; decontamination procedures ; confirmation sampling ; and confirming that contractors activities were being completed in accordance with the DTSC-approved RAW. As part of this process, Daily Field Reports (DFRs) were used to document Site activities.

Entries in the DFRs included, at a minimum, the following for each field work date:
• Site name and address;
• Recorder’s name;
• Time of Site arrival/entry on Site and time of departure; • Other personnel on Site;
• Removal activities performed during the day.

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 13 Revised - July 2018 The DFRs were sent as emails to project management personnel.

5.4 EXCAVATION OF IMPACTED SOIL, RAILROAD TIES, AND SUBSURFACE CONCRETE

STRUCTURES
The removal action consisted of the excavation and removal of approximately 2 ,950 cubic yards of hydrocarbon-impacted (i.e. not saturated) soil, 150 cubic yards of hydrocarbon-saturated soil, and 230 cubic yards of lead-containing soil. Excavation activities started on September 8, 2017 and concluded on October 4, 2017.

A total of nine areas were excavated. For simplicity , the excavation areas were divided into two regions—the Former Maintenance Area and Eastern Lead Impacted Area. An overview showing all excavation areas at the Site is found in Figure 2. The Former Maintenance Area contains four excavation areas labeled as Area A, Area B, Area C, and Area D. Details for each excavation area are shown in Figures 5, 6, 7, and 8 respec tively. The Easter n Lead impacted areas contain five excavation areas labelled as area L1, L2, L3, L4, and L5 . Details for excavations L1 and L2, L3 and L4, and L5 are shown in figures 9, 10, and 11 respectively. The excavatio n depth varied from 3 ft bgs t o 10 ft bgs , (Figures 5 through 11). The originally planned excavation boundaries were extended based on the delineation of contamination. The Photo L og documents the excavation, construction of the Consolidation Area and Cap, sealing of the Consolidation Area, pavement of the Cap and removal of debris from the excavation areas (Appendix B). Details of the over excavation are described in section 5.8.1.

All observed railroad ties were removed from the Site during excavation activities. Railroad ties and other railroad -related wooden debris were removed from the Former Maintenance Area during excavation. All railroad ties were stockpiled near the Site entrance. McGuire & Hester oversaw the removal of approximately 60 tons of railroad ties to Altamont Landfill & Resource Recovery in Livermore, CA. McGuire and Hester oversaw approximately 1200 tons of subsurface concrete encountered in non -saturated areas of excavation areas. This material was removed for recycling at Argent Materials and Inner City Recycling both located in Oakland, CA. Visually impacted concrete was removed from the Site with excavated soil and shipped to Potrero Hills Landfill in Suisun, CA.

5.4.1 CONSTRUCTION EQUIPMENT
Excavation and soil movement were performed with a variety of heavy machinery. An excavator, track loader, skip loader and backhoe were used to excavate and load soil into dump trucks for placement into the on-Site Consolidation Area. The track loader was used to load the material into transport trucks.

A water truck was used for dust control during the loading of the transport trucks. A scraper was used to add fill to the excavation areas after removal of impacted soil. An asphalt paver was used to finish the top layer of the Cap and pave the bike path.

5.4.2 STOCKPILING PROCEDURES
Saturated soil and the concrete sumps were temporarily stockpiled onto and covered with visqeen plastic at the southern end of excavation Area B. During the exca vation of Area C, the Consolidation

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 14 Revised - July 2018 Area was filled to capacity. Therefore, some soil generated from excavation Area C was placed on and covered with visqueen liner until it was removed from the Site and sent to Potrero Landfill in Suisun, CA.

A mixture of soil, visqueen, and small amounts of metallic debris from the stockpi les was sampled for characterization and final disposal. Information regarding manifest and bills of lading are enclosed in Appendix C.

5.5 DUST CONTROL
The following d ust control measures were utilized to minimize the generation of dust associated with excavation, stockpiling, loading, truck and vehicle traffic onto and off the Site, and the effects of ambient wind traversing exposed soil:

1. Exposed surfaces (e.g., parking areas, staging areas, soil piles, graded areas, and unpaved access roads) were be watered two times per day.

2. Haul trucks transporting soil, sand, or other loose material off-Site were covered.

3. Visible mud or dirt track -out onto adjacent public roads was removed using wet power vacuum street sweepers at least once per day. The use of dry power sweeping was prohibited.

4. Vehicle speeds on unpaved roads were limited to 15 mph.

5. Roadways, driveways, and sidewalks to be paved were completed as soon as possible. Building pads were laid as soon as possible after grading except in cases where seeding or soil binders were used.

6. Idling times were minimized either by shutting equipment off when not in use or reducing the maximum idling time to 5 minutes (as required by the California airborne toxics control measure Title 13, Section 2485 of California Code of Regulations [CCR]). Clear signage was provided for construction workers at all access points.

7. Construction equipment was maintained and properly tuned in accordance with manufacturer’s specifications. All equipment was checked by a certified mechanic and determined to be running in proper condition prior to operation.

8. Posted a publicly visible sign with the telephone number and person to contact at the Lead Agency regarding dust complaints. The Air District’s phone number was also visible to ensure compliance with applicable regulations. No complaints were made, dust control procedures continued through the duration of activities per RAW specifications.

In addition, near the Site excavation areas the following procedures applied:
• Application of water while excavating, stockpiling, and loading, as needed; • Limiting vehicle speeds to 5 miles per hour on unpaved portions of the Site; • Minimizing drop heights while loading/unloading soil;

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 15 Revised - July 2018 • Covering stockpiles with an impermeable liner; and
• Covering trucks with tarps prior to leaving the Site.

Confirmation of the effectiveness of the employed d ust control measures was provided by on-Site air monitoring conducted during excavation activities. Detailed air monitoring data generated during Site removal activities are provided in Appendix D.

5.6 AIR MONITORING DURING EXCAVATION
Air monitoring was conducted during excavation and containment operations to ensure that potential exposure to the public , as well as Site workers, was controlled . Additionally, air monitoring was conducted along the Site boundary and in the work zones, to ensure the absence of PM10 (i.e., particulate matter with aerodynamic diameter less than 10 microns in diameter) above the nuisance level of 50 micrograms per cubic meter (μ g/m3). Before air monitoring began, background levels of PM10 were measured for approximately an hour at each air monitoring locating. Background levels of PM10 were found to be approximately 30 μg/m3 at the Site. T herefore, based on the observed Site background levels and the baseline 50 μ g/m3 nuisance level, measurements of above 80 μ g/m3 were considered an exceedance and would require a “stop work” action.

Additionally, the Site established PM10 nuisance level of 80 μg/m3 is below the PM10 action level of 3.7 μg/m3 for lead detected in Site soils. Neither the established PM10 nuisance level nor the PM10 action level for Site lead was exceeded during excavation activities. Thus the PM10 action level for lead was not reached. Table 2 provides average concentrations of PM10 monitoring during excavation activities as measured by the air monitors at the end of each day of fieldwork. Detailed air monitoring data is located in Appendix D. Appendix D will be omitted from printed copies of this report due to its length.

5.7 CONFIRMATION SAMPLING
Confirmation sampling was performed to verify that lead and hydrocarbon impacted soil s, exceeding removal action goals, were removed from the proposed excavation areas (see Figures 5 through 11).

Confirmation samples were collected only after field methods including visual analysis of the excavation provided confidence that the impacted soils had been removed. Samples were analyzed by Enthalpy Analytical (formerly Curtis & Thompkins) in Berkeley, CA . Samples colle cted from the former maintenance area were analyzed for diesel range organics, motor oil, and bunker C by EPA Method 8015D. Samples collected from the eastern lead impacted soil area were analyzed for lead using EPA Method 6010B. Samples collected from the former maintenance area were analyzed using EPA Method 8015D and EPA Cleanup Method 3630C for silica gel cleanup (SGCU). SGCU was added for the purpose of removing naturally occurring hydrocarbons from samples to more accurately determine the concentrations of hydrocarbons present as a result of human activity (RWQCB, 2016). Additional rationale for using SGCU is included in section 5.7.1. Full tabulated analytical results are presented in Tables 5 and 6. Original laboratory analytical reports are included in Appendix A Confirmation s amples were collected from sidewalls and the bottom s of the excavation areas.

Confirmation sample locations for each excavation area are shown in Figures 5 through 11. A minimum

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 16 Revised - July 2018 of four sidewall samples were taken from each ex cavation. Initial sidewall samples were taken from approximately 2 feet below original grade. Sidewall samples were taken from over-excavated areas, with depths greater than 3 ft bgs , at approximately 1 foot above the bottom of the excavation depth.

One ba se sample was taken from each excavation for every 500 square feet with a minimum of two base samples taken from each excavation area.

Samples were given names based on the locations they were taken from. The first part of each sample names was titled with JS to denote these samples were taken at Jean Sweeney Open Space Park. The second part of each sa mple name refers to how the sample was taken. Samples with BS as the second part of their names were taken from the base of an excavation and samples with SW as the second part of their name were taken from the sidewall of an excavation. Samples with SU as the second part of their name were taken from the area s underneath one of the two sumps after they were removed. The third part of each sample name refers to the location in which each sample was taken. Samples with A, B, C, D, or L in the third part of their name were taken from areas A, B, C, D, or L respectively.

Two duplicate samples were taken during field work, JS -BS-A04DUP and JS -BS-A13DUP. A duplica te sample is taken from the same location as another in order to determine sampling precision and variation within the sampling area. Results varied little between the duplicates and their corresponding samples.

Of the 54 initial base and sidewall samples collected from the former maintenance area excavation, only 7 samples (JS-BS-A01, JS -BS-A10, JS -BS-B09, JS -SW-B02, JS -SW-B07, JS -SW-C01, and JS -SW-C09) when analyzed with silica gel clean up contained hydrocarbon concentrations above the remedial goals set for the Site in the RAW. A summary of samples treated with SGCU from this area are presented in Table 3.

Sample locations are shown in Figures 5 through 8.

Of the 26 samples taken from the eastern lead impacted soil area, only one (JS-BS-L201) contained lead in concentrations above the limits set forth in the RAW (Table 4). Sample locations are shown in Figure

10. 5.7.1 SILICA GEL CLEAN UP
In preliminary investigations performed before field work occurred for the RAW analytical lab oratory results from the site returned many Y-flags on samples tested for hydrocarbons. A Y-flag indicates that a sample exhibits a nonstandard chromatographic pattern mean ing that the tests likely detected non- petroleum hydrocarbons from samples taken from the Site. Non-petroleum organics can elute in diesel, motor oil, and bunker c ranges, possibly resulting in false exceedances. SGCU was used on samples analyzed for TPH-D, TPH-MO, and bunker C. Potential interferences may include:
• Naturally occurring organic material
• Terpenes
• Animal and vegetable oils/fats
• Phthalates

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 17 Revised - July 2018 • Chlorinated hydrocarbons
• Phenol organic acids
Silica gel cleanup was used to remove potential interferences in the diesel, motor oil, or bunker c range.

This alternative method was used for comparison purp oses in accordance with the Petroleum Metabolites Literature Review and Assessment Framework (RWQCB, 2016). Sample results varied little between non-SGCU trials and SGCU trials. One sample, JS -BS-A08, was below RAOs for only the SGCU trial. Based on adjace nt clean samples, the low exceedances to the ROAs from the non -SGCU analysis, and the SGCU analysis the area around the location in which sample JS -BS-A08 was taken from was considered to meet the ROAs from the RAW.

5.7.2 OVER-EXCAVATION AND ADDITIONAL CONFIRMATION SAMPLING Due to the detection of contaminants of concern above regulatory limits additional excavation was performed and additional confirmation samples were taken after overexcavation. Samples initially taken from an area prior to expanding excavation in that area are referred to as initial samples. Confirmation samples that were taken in order to determine if overexcavation successfully removed contaminants of concern from an area are referred to as secondary samples.

Area A Excavation
A detailed view of Area A excavation is shown in Figure 4. The sample JS-BS-A01 was analyzed and found to contain hydrocarbons above the RAOs. The area around sample JS-BS- A01 was e xcavated a n additional foot below ground and then sampled again (at 4 .5 ft bgs) to confirm that impacted soil was removed. Similarly, sample JS-BS-A10 was analyzed and found to contain hydrocarbons above the RAOs.

The area around the sample was excavated an additional 2 feet bgs ). The area around sample JS-BS-A09 was also excavated an additional two feet.

Area B Excavation
A detailed view of Area B Excavation is shown in Figure 5. Based on the failure of sample JS-SW-B02 and JS-SW-B07 and the presence of a layer of visual contamination at 1.5 ft bgs, the southern bound ary of excavation area B was expanded south by 10 ft at a depth of 3 ft bgs. Three additional base samples (JS- BS-B11, JS-BS-B13, JS-BS-B15) were taken and analyzed after the excavation area was expanded. Each of these base samples was analyzed and none exceeded the RAOs. Based on the results of these samples , the overexcavation, and the lack of visual contamination we consider the contamination present where sample JS-SW-B02 was taken to have been removed . The excavation was expanded outwardly from JS- SW-B07 to remove impacted soil. Soil located between the sample location and the concrete sump was removed to ensure any soil impacted from leakage out of the concrete sump was excavated . The edge of the expa nded excavation of Area B merged with the excavation of the concrete sump. Areas underneath metal (JS-SU-B01, JS-SU-B02) and concrete (JS -SU-B03, JS-SU-B04) sumps were sampled at

5.5 ft bgs and at 8 .5 ft bgs respectively and excavated based on the presence of visual contamination in the form of an oily sheen.

Area C Excavation

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 18 Revised - July 2018 A detailed view of Area C is shown in Figure 7. During the initial excavation of Area C two large wooden platforms were encountered at 4ft bgs. The platforms were parallel and extended east- west outside of the original excavation area on both sides. Based on visual and olfactory evidence ( strong hydrocarbon odor) the excavation was expanded one foot below the platforms (to 8 ft bgs) and one foot outside the footprint of the platforms.

Base Sample JS-SW-C01 exceeded remedial goals and the excavation was extended south by three feet on the southeast portion of the excavation and was resampled (JS- SW-C06). Sidewall sample JS-SW-C09 was taken from the northeast arm of the excavation at 8ft bgs from a small area containing debris interspersed with a black liquid. The sample was reported to be in exceedance of remedial goals ; and subsequently the debris containing area was delineated, excavated, and resampled as JS -SW-C109. The northeast portion of the excavation was expanded 1 foot east, approximately 7 feet south , and down to 10ft bgs. The analytical results for the second round of confirmation samples (JS -SW-C01 and JS -SW- C109) were below the remedial action goals and no further excavation was required.

Area D Excavation
A detailed view of Area D is shown in Figure 8. All analytical results from Area D were below the remedial action goals and no overexcavation was required.

Eastern Lead Impacted Areas
Only one sample, base sample JS -BS-L201, from the eastern lead impacted areas was found to contain lead in exceedance of the RAOs. As a result Lead Impacted Area L2 was excavated an additional foot to 4 ft bgs (Figure 10). Table 4 shows analytical results from Area L2 , full analytical re sults from the Eastern Lead Impacted Area can be found in Table 6.

5.8 WASTE CHARACTERIZATION AND DISPOSAL
Waste material that was removed from the Site included saturated material, excess non -saturated impacted soil, visqueen sheets used for soil stockpiling, metal debris associated with sumps, and concrete debris associated with sumps. The material was classified as Class II (non-hazardous) contaminated waste soil. McGuire & Hester contracted Dirt Shop, Inc. to handle the transportation and disposal of waste . Transportation activities began on October 19, 2017 and concluded on October 20, 2017. Saturated material was mixed with non- saturated material to prevent any leakage or spillage during transportation. Stockpiles were wetted and then loaded into trucks , covered, and transported to the Potrero Hill Landfill Inc., 3675 Potrero Hills Lane, Suisun, CA 94585. Waste manifests are included as Appendix C.

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 19 Revised - July 2018

6. CAP AND CONSOLIDATION AREA

6.1 CAP AND CONSOLIDATION AREA CONSTRUCTION
Construction of the Consolidation Area began prior to the excavation of impacted soils. Appendix B contains photos of the Cap and Consolidation Area construction. The Consolidation Area and Cap (Figure 2) was built from the eastern area and was extended to the eastern edge of the Former Maintenance Area. Consolidation Area and Cap construction diagrams are included in Figure G2. A 4 to 5 foot deep by 12 feet wide trench was dug for the placement of the Consolidation Area. The trench was initially excavated on the eastern side of the Site a nd extended west after excavation of impacted soil from the Former Maintenance A rea and eastern lead impacted area. After the first lengths of the trench were dug, McGuire & Hester cut section s of HDPE liner, laid it in the trench , and connected each section together with adhesive. Impacted soil from the excavation areas were placed into dump trucks and driven to the edge of the HDPE lined trench where they were placed. In addition, backhoes, bulldozers, and other heavy machinery were used to ensure all impacted soil was placed in the trench. Impacted soil was not stockpiled on exposed ground. For any instances in which soil was not placed directly into the HDPE covered trench it was either stockpiled at the edge of the trench on top of the HDPE liner used for the Consolidation Area or on visqueen sheets and later placed in the HDPE covered trench.

As the excavation of impacted soil from both areas of the Site continued, the Consolidation Area and was covered with HDPE liner sections and connected with adhesive to adjacent HDPE liner sections.

After each load of soil was placed in the partially constructed Consolidation Area, McGuire & Hester performed compaction testing on the soil to ensure that the encapsulated soil was properly compacted.

After each section was properly compacted, the portion of HDPE liner sections that extended out from underneath the impacted soil in the trench were folded over the contaminated soil and sealed together with adhesive. The ends of the partially constructed Consolidation Area were also folded over the top of the impacted soil and sealed using the same method. The Cap was then constructed on top of the Consolidation Area. A small layer of aggregate base (AB) was placed over the top of the sealed HDPE liner and was compacted. A geotextile liner was placed over this layer and buried with another layer of AB, which was then compacted. The AB layer extended approximately 1-2 ft past the sealed HDPE liner.

Asphalt for the bike path was placed on top of the AB with about 1 ft of AB material extending out from under the asphalt on each side.

Clean soil removed during the construction of the Consolidation Area and cap as part of the base for the trail was utilized as fill for the impacted soil excavation areas. During excavation activities, clean soil was stockpiled and then transported within the Site to the excavation areas. Any additional soil used as fill was taken from other non-impacted areas under McGuire & Hester’s discretion.

6.2 COVENANT AND ENVIRONMENTAL RESTRICTION ON PROPERTY
A land use restriction officially known as a Covenant and Environmental Restriction on Property will be placed on the Site by the City of Alameda.

The Site shall not be used for any of the following purposes:

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 20 Revised - July 2018

1. A residence, including any mobile home or factory built housing, constructed or installed for use as residential human habitation.

2. A hospital for humans.

3. A public or private school for persons under 21 years of age.

4. A day care center for children.

6.3 CAP OPERATION AND MAINTENANCE
An Operation and Maintenance Plan for the Consolidation Area, Cap, and land adjac ent to the Cap was prepared as a separate document. The following summarizes the information included in the Operation and Maintenance Plan for the Site.

6.3.1 SUMMARY OF OPERATION AND MAINTENANCE PLAN
The primary goal of the O&M Plan is to prevent exposures t o hydrocarbons and lead, contain hydrocarbon impacted and lead impacted soil, and to protect the health of park visitors and workers at the Site.

To accomplish this goal, the O&M Plan addresses the following objectives:
• Minimize disturbances of the Cap and all of its components and soils contained within the Consolidation Area;
• Describe the mitigation remedy (installed Consolidation Area and Cap); • Establish an inspection and monitoring program to identify damaged Consolidation Area and Cap areas and to evaluate ongoing cap effectiveness;
• Provide for timely repair or replacement needed to restore damaged Consolidation Area and Cap areas;
• Train O&M inspectors, and other staff as needed, in personal health and safety protection and proper methods of Consolidation Area and Cap inspection and repair; • Provide checklists and templates to be used for recordkeeping; and, • Make the O&M Plan available for public review with copies maintained at the Site and the City of Alameda Environmental Health office.

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 21 Revised - July 2018

7. VARIANCES TO THE RAW
Two variances to the RAW w ere implemented during the execution of this project. The first variance is that each sample analyzed for hydrocarbons (TPH- D, TPH-MO, and Bunker C) was analyzed once with SGCU and once without. See section 5.7.1 for the purpose of using this cleanup method.

The second variance is that work related to sampling soil from the proposed orchard areas was not performed during field activities. The City of Alameda evaluated the placement of orchards at the Site and determined that it will not plant trees with edible fruit at the Site; therefore soil sampling in the former proposed orchard area will not be performed

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 22 Revised - July 2018

8. CONCLUSIONS
Approximately 2,950 cubic yards of hydrocarbon impacted (non -hydrocarbon saturated) and approximately 230 cubic yards of lead impacted soil was placed inside the Consolidation Area.

Approximately 150 cubic yards of hydrocarbon -saturated material was removed from the Site and transported to Potrero Hill in Suisun, CA. Approximately 60 tons of railroad ties were removed and transported to Altamont Landfill & Resource Recovery in Livermore; CA (Appendix C). Approximately 3,250 cubic yards of on-Site generated clean fill was used to fill excavated areas.

The Consolidation Area and Cap were completed on October 13, 2017. Waste characterization and disposal procedures are discussed in section 5.8 and w aste manifests area presented in Appendix C Excavation sidewall and base sampling confirmed the absence of additional hydrocarbon and lead concentrations in their respective areas above the remedial goals in soils bounding the excavated areas.

Based on our field observations and laboratory testing, the soil removal activities described in the report were performed in general accordance with the approved RAW.

After the approval of this report the City of Alameda will set up a Land Use Covenant and Environmental Restriction on the Site property applying the restrictions discussed in section 6.2 . Additionally, the City of Alameda will be responsible for i mplementing the Operation and Maintenance Plan that will be submitted separately from this report. The Operations and Maintenance Plan provides guidelines for inspections of the Consolidation Area and Cap, training of personnel inspecting the Consolidation Area and Cap, required procedures when working around the Consolidation Area and Cap including health and safety, reporting and scheduling, and cost estimates for routine inspections.

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 23 Revised - July 2018

9. REFERENCES
Advanced Assessment & Remediation Services (AARS 2004), Quarterly Groundwater Monitoring and Sampling Report at Sheehan Property, 845 Pacific Avenue, Alameda, California, Feb 27, 2004 Blackie, Belinda P. P.E. R.E.A. 2010. Phase I Site Assessment. ABL Parcels Alameda, CA. March.

Conestoga-Rovers & Associates (CRA 2013), First Semi Annual 2013 Groundwater Monitoring and Sampling Report, Chevron Service Station 90290, 1802 Webster Street Alameda, California Fuel Leak Case No. RO0000195, July 12, 2013
Department of Toxic Substances Control (DTSC), Human and Ecological Risk Office (HERO). 2015. Human Health Risk Assessment (HHRA) Note Number 3. May 2015.

San Francisco Bay Regional Water Quality Control Board (RWQCB, 2013. Environmental Screening Levels– Interim Final December 2013 (Table A-2). December 2013.

San Francisco Bay Regional Water Quality Control Board (RWQCB), 2016. Petroleum Metabolites Literature Review and Assessment Framework. June 2016.

SLR, 2016. Removal Action Work Plan – Soils Only Jean Sweeney Open Space Park, Oakland, CA.

December.

United States Geological Survey (USGS), 1980. Oakland West 7.5 minute Quadrangle Scale 1:24,000.

URSGWC. 1999a. Phase II Environmental Assessment 22-Acre Former Alameda Belt Line Rail Yard, Alameda, California. March.

URSGWC. 1999b. Phase II Environmental Assessment 22-Acre Former Alameda Belt Line Rail Yard, Alameda, California. March.

URSGWC. 1999c. Remedial Investigation 22-Acre Former Alameda Belt Line Rail Yard, Alameda, California. June.

City of Alameda April 2018
Jean Sweeney Open Space Park - RACR 24 Revised - July 2018

LIMITATIONS
The services described in this work product were performed in accordance with generally accepted professional consulting principles and practices. No other representations or warranties, expressed or implied, are made. These services were performed consistent with our agreement with our client. This work product is intended solely for the use and information of our client unless otherwise noted. Any reliance on this work product by a third party is at such party's sole risk.

Opinions and recommendations contained in this work product are based on conditions that existed at the time the services were performed and are intended only for the client, purposes, locati ons, time frames, and project parameters indicated. The data reported and the findings, observations, and conclusions expressed are limited by the scope of work. We are not responsible for the impacts of any changes in environmental standards, practices, or regulations subsequent to performance of services.

We do not warrant the accuracy of information supplied by others, or the use of segregated portions of this work product.

The purpose of an environmental assessment is to reasonably evaluate the potentia l for, or actual impact of, past practices on a given site area. In performing an environmental assessment, it is understood that a balance must be struck between a reasonable inquiry into the environmental issues and an appropriate level of analysis for each conceivable issue of potential concern. The following paragraphs discuss the assumptions and parameters under which such an opinion is rendered.

No investigation can be thorough enough to exclude the presence of hazardous materials at a given site.

If hazardous conditions have not been identified during the assessment, such a finding should not therefore be construed as a guarantee of the absence of such materials on the site, but rather as the result of the services performed within the scope, practical limitations, and cost of the work performed.

Environmental conditions that are not apparent may exist at the site. Our professional opinions are based in part on interpretation of data from a limited number of discrete sampling locations and therefore may not be representative of the actual overall site environmental conditions.

The passage of time, manifestation of latent conditions, or occurrence of future events may require further study at the site, analysis of the data, and/or reevaluation of the findings, observations, and conclusions in the work product.

This work product presents professional opinions and findings of a scientific and technical nature. The work product shall not be construed to offer legal opinion or representations as to the requi rements of, nor the compliance with, environmental laws rules, regulations, or policies of federal, state or local governmental agencies.

FIGURES
Figure 1 Site Vici
nity Map
Figure 2 Site Plan Show ing Excavation Areas
Figure 3 Site Plan Showing Former Maintenance Areas of Excavat ion Figure 4 Site Plan Sh owing Eastern Lead Impacted Areas of Excavation Figure 5 Detail Map of Excavation and Sampling of Area A Figure 6 Detail Map of Excavation and Sampling of Area B Figure 7 Detail Map of Excavation and Sampling of Area C Figure 8 Detail Map of Excavation and Sampling of Area D Figure 9 Eastern Lead Impacted Area L5 Soil Confirmation Samples Figure 10 Eastern Lead Impacted Areas L3 & L4 Soil Confirmati on Samples Figure 11 Eastern Lead Impacted Areas L1 & L2 Soil Confirmation Samples Figure 12 Site Plan Showing Cap Cross Section
Last Saved: February 12, 2018 11:40:21 AM by hvazquez Drawing path: N:\Oakland\CAD\102.01422.00001 Jean Sweeney\Fig\Figure 1. Vicinity_Map.dwg THIS DRAWING IS FOR CONCEPTUAL PURPOSES ONLY. ACTUAL
LOCATIONS MAY VARY AND NOT ALL STRUCTURES ARE SHOWN.

Freburay, 2018Date
File Name 1
Drawing
Fig. No.AS SHOWNScale
Project No.Figure 1. Vicinity_Map
Vicinity Map
N

SITE LOCATION
Jean Sweeney Open Space Park Alameda, CA
Site
102.01422.00001

CONSTITUTION WAY
AREA A
AREA B
AREA C
AREA D
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Site Plan Showing Excavation Areas
File NameProject No.

DateScale
Site
Drawing
Fig. No.

Excavation Areas RCAR102.01422.00011

GRAPHICAL SCALE (FEET)
250 0500
N
LEGEND

PROPERTY BOUNDARY

EXCAVATION LIMITS AREAS

LOCATION OF CAP AND BIKE TRAIL

CONCRETE AREAS OF WALKING TRAIL AND BIKE TRAIL
(LOCATIONS ARE APPROXIMATE)

WALKING TRAIL
LEAD IMPACTED AREA L5
LEAD IMPACTED AREA L3
LEAD IMPACTED AREA L1
LEAD IMPACTED AREA L2
LEAD IMPACTED AREA L4
AREA B
AREA A
AREA D
AREA C

CONSOLIDATION AREA WITH CAP

BIKE TRAIL

PAVILION

ENTRANCE AREA PAVILION

PAVILION

PAVILION
AREA A
AREA B
AREA C
AREA D
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File NameProject No.

DateScale
Site
Drawing
Fig. No.

Excavation Areas RCAR102.01422.00011

GRAPHICAL SCALE (FEET)
60 0120
N
LEGEND
Area of Site
Site Plan Showing Former Maintenance
Area of Excavation

WALKING TRAIL

PROPERTY BOUNDARY

AREA OF SITE

EXCAVATION LIMITS AREAS

LOCATION OF CAP AND BIKE TRAIL

CONCRETE AREAS OF WALKING TRAIL AND BIKE TRAIL
(LOCATIONS ARE APPROXIMATE)

CONSOLIDATION AREA WITH CAP

BIKE TRAIL

FIGURE OVERVIEW GRAPHICAL SCALE (FEET)
500 0250
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File NameProject No.

DateScale
Site
Drawing
Fig. No.

Excavation Areas RCAR102.01422.00011

GRAPHICAL SCALE (FEET)
100 0200
N
LEGEND
Site Plan Showing Eastern Lead Impacted
Areas of Excavation
Area of Site
LEAD IMPACTED AREA L5
LEAD IMPACTED AREA L3
LEAD IMPACTED AREA L1 LEAD IMPACTED AREA L2
LEAD IMPACTED AREA L4

CONSOLIDATION AREA WITH CAP

WALKING TRAIL

FIGURE OVERVIEW GRAPHICAL SCALE (FEET)
500 0250

PROPERTY BOUNDARY

AREA OF SITE

EXCAVATION LIMITS AREAS

LOCATION OF CAP AND BIKE TRAIL

CONCRETE AREAS OF WALKING TRAIL AND BIKE TRAIL
(LOCATIONS ARE APPROXIMATE)
AREA B
AREA C
AREA D
JS-SW-A02
JS-SW-A01
JS-BS-A02
JS-BS-A04/JS-BS-A04DUP
JS-SW-A08
JS-BS-A03
JS-BS-A05
JS-BS-A06
JS-BS-A13/JS-BS-A13DUP
JS-SW-A07
JS-BS-A14
JS-SW-A06
JS-BS-A12 JS-BS-A11
JS-BS-A08 JS-BS-A07
JS-SW-A04
JS-SW-A03
JS-BS-A109
JS-SW-A05
JS-BS-A10
JS-BS-A110
JS-BS-A01
JS-BS-A101
JS-BS-A09
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File NameProject No.

DateScale
Site
Drawing
Fig. No.

RCAR Draft Figure Area A102.01422.00011

GRAPHICAL SCALE (FEET)
30 060
LEGEND
N
Area of Site

AREA OF SITE

LOCATION OF CONFIRMATION SOIL SAMPLE

LIMITS OF EXCAVATION

PROPOSED LIMITS OF EXCAVATION
EXCAVATION DEPTH 4 FEET
EXCAVATION DEPTH 5 FEET
(LOCATIONS ARE APPROXIMATE)
NOTES

EXCAVATION WAS OVERDUG BASED ON ANALYTICAL RESULTS AND

FIELD OBSERVATIONS

ALL TPH ANALYSIS TABLE ONLY SHOWING ANALYTICAL RESULTS

FOR PASSING CONFIRMATION SAMPLES
SHOWN HERE WERE PERFORMED BY EPA METHOD 8015B

ALL CONFIRMATION SAMPLES WERE TREATED WITH SILICA GEL
CLEANUP (EPA METHOD 3630C) PRIOR TO ANALYSIS
MG/KG = MILLIGRAMS PER KILOGRAMS
ND<5 OR ND<1 = NOT DETECTABLE AT OR ABOVE THE STATED

LABORATORY DETECTION LIMIT
DRO = DIESEL RANGE ORGANICS
BOLD INDICATES SCREENING LEVEL EXCEEDANCE.

BOLD INDICATES SCREENING VALUE UTILIZED FOR ANALYTE.

Y = SAMPLE EXHIBITS CHROMATOGRAPHIC PATTERN WHICH DOES

NOT RESEMBLE STANDARD
ESLS = ENVIRONMENTAL SCREENING LEVELS - SHALLOW SOIL

GROUNDWATER IS A CURRENT OR POTENTIAL SOURCE OF DRINKING WATER INTERIM FINAL DEC. 2013 SF BAY RWQCB - TABLE A-2

COMMERCIAL/INDUSTRIAL LAND USE
SAMPLE ID CONVENTIONS:

JS = JEAN SWEENEY
BS = BASE SAMPLE
SW= SIDEWALL SAMPLE
DUP = DUPLICATE SAMPLE
JS-BS-A101 IS THE PASSING CONFIRMATION SAMPLE
CORRESPONDING TO JS-BS-A01
JS-BS-A110 IS THE PASSING CONFIRMATION SAMPLE
CORRESPONDING TO JS-BS-A10
Detail Map of Excavation and Sampling of Area A
EXCAVATION DEPTH 3 FEET

WALKING TRAIL

BIKE TRAIL

FIGURE OVERVIEW GRAPHICAL SCALE (FEET)
500 0250
AREA A
JS-SW-B04
JS-SW-B19
JS-SW-B107
JS-SW-B01
JS-SU-04
JS-BS-03
JS-BS-11
JS-BS-B07
JS-BS-B19
JS-BS-B20
JS-BS-B02
JS-BS-B04
JS-BS-B03
JS-BS-B06
JS-BS-B08
JS-SW-B20
JS-SW-B18
JS-SW-B03
JS-BS-B15
JS-BS-B13
JS-BS-B05
JS-SW-B05
JS-SU-B01
JS-SU-B02
JS-BS-B109
JS-SW-B06
JS-BS-B01
JS-SW-B07
JS-SW-B02
JS-BS-B09
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File NameProject No.

DateScale
Site
Drawing
Fig. No.

RCAR Draft Figure Area B102.01422.00011

GRAPHICAL SCALE (FEET)
30 060
N
Area of Site
Detail Map of Excavation and Sampling of Area B
LEGEND

AREA OF SITE

LOCATION OF CONFIRMATION SOIL SAMPLE

LIMITS OF EXCAVATION

PROPOSED LIMITS OF EXCAVATION
EXCAVATION DEPTH 5 FEET
EXCAVATION DEPTH 8 FEET

CONCRETE AREAS OF WALKING TRAIL AND BIKE TRAIL
(LOCATIONS ARE APPROXIMATE)
NOTES
EXCAVATION DEPTH 3 FEET

CONSOLIDATION AREA WITH CAP

WALKING TRAIL

EXCAVATION WAS OVERDUG BASED ON ANALYTICAL RESULTS AND FIELD OBSERVATIONS

ALL TPH ANALYSIS TABLE ONLY SHOWING ANALYTICAL RESULTS FOR PASSING CONFIRMATION SAMPLES SHOWN HERE WERE PERFORMED BY EPA METHOD 8015B
ALL CONFIRMATION SAMPLES WERE TREATED WITH SILICA GEL CLEANUP (EPA METHOD 3630C) PRIOR TO ANALYSIS MG/KG = MILLIGRAMS PER KILOGRAMS
ND<5 OR ND<1 = NOT DETECTABLE AT OR ABOVE THE STATED LABORATORY DETECTION LIMIT DRO = DIESEL RANGE ORGANICS
BOLD INDICATES SCREENING LEVEL EXCEEDANCE.

BOLD INDICATES SCREENING VALUE UTILIZED FOR ANALYTE.

Y = SAMPLE EXHIBITS CHROMATOGRAPHIC PATTERN WHICH DOES NOT RESEMBLE STANDARD ESLS = ENVIRONMENTAL SCREENING LEVELS - SHALLOW SOIL GROUNDWATER IS A CURRENT OR POTENTIAL SOURCE OF DRINKING WATER INTERIM FINAL DEC. 2013 SF BAY RWQCB - TABLE A-2 COMMERCIAL/INDUSTRIAL LAND USE SAMPLE ID CONVENTIONS:

JS = JEAN SWEENEY
BS = BASE SAMPLE
SW= SIDEWALL SAMPLE
SU = SAMPLE TAKEN FROM BELOW SUMP
DUP = DUPLICATE SAMPLE
JS-BS-B109 IS THE PASSING CONFIRMATION SAMPLE CORRESPONDING TO JS-BS-B09 JS-BS-B13 IS THE PASSING CONFIRMATION SAMPLE CORRESPONDING TO JS-SW-B02 (SEE MAIN TEXT) JS-SW-B107 IS THE PASSING CONFIRMATION SAMPLE CORRESPONDING TO JS-SW-B07 (SEE MAIN TEXT)

CONCRETE SUMP LOCATION

METAL SUMP LOCATION

FIGURE OVERVIEW GRAPHICAL SCALE (FEET)
500 0250
AREA A
AREA D
JS-SW-C04
JS-SW-C10
JS-SW-C08
JS-BS-C03
JS-SW-C02
JS-SW-C03
JS-SW-C05
JS-SW-C04
JS-SW-C09
JS-SW-C11
JS-SW-C06
JS-SW-C104
JS-SW-C01
JS-SW-C109
AREA A
JS-SW-C07
Last Saved: July 13, 2018 7:44:03 AM by ybourdon Drawing path: N:\Oakland\CAD\102.01422.00001 Jean Sweeney\Fig\Additional Investigation\RCAR Draft Figure Area C.dwg

AS SHOWN
7 Jean Sweeney Open Space Park, Alameda, CA
July 12, 2018
File NameProject No.

DateScale
Site
Drawing
Fig. No.

RCAR Draft Figure Area C
102.01422.00011

GRAPHICAL SCALE (FEET)
30 060
N
Area of Site
Detail Map of Excavation and Sampling of Area C
LEGEND

AREA OF SITE

LOCATION OF CONFIRMATION SOIL SAMPLE

LIMITS OF EXCAVATION

PROPOSED LIMITS OF EXCAVATION
EXCAVATION DEPTH 10 FEET
(LOCATIONS ARE APPROXIMATE)
NOTES
EXCAVATION DEPTH 9 FEET

BIKE TRAIL

WALKING TRAIL

EXCAVATION WAS OVERDUG BASED ON ANALYTICAL RESULTS AND FIELD

OBSERVATIONS

ALL TPH ANALYSIS TABLE ONLY SHOWING ANALYTICAL RESULTS FOR PASSING

CONFIRMATION SAMPLES
SHOWN HERE WERE PERFORMED BY EPA METHOD 8015B

ALL CONFIRMATION SAMPLES WERE TREATED WITH SILICA GEL CLEANUP (EPA METHOD 3630C) PRIOR TO ANALYSIS
MG/KG = MILLIGRAMS PER KILOGRAMS
ND<5 OR ND<1 = NOT DETECTABLE AT OR ABOVE THE STATED LABORATORY

DETECTION LIMIT
DRO = DIESEL RANGE ORGANICS
BOLD INDICATES SCREENING LEVEL EXCEEDANCE.

BOLD INDICATES SCREENING VALUE UTILIZED FOR ANALYTE.

Y = SAMPLE EXHIBITS CHROMATOGRAPHIC PATTERN WHICH DOES NOT RESEMBLE

STANDARD
ESLS = ENVIRONMENTAL SCREENING LEVELS - SHALLOW SOIL GROUNDWATER IS A CURRENT OR POTENTIAL SOURCE OF DRINKING WATER INTERIM FINAL DEC. 2013 SF BAY RWQCB - TABLE A-2 COMMERCIAL/INDUSTRIAL LAND USE
SAMPLE ID CONVENTIONS:

JS = JEAN SWEENEY
BS = BASE SAMPLE
SW= SIDEWALL SAMPLE
DUP = DUPLICATE SAMPLE
JS-SW-C06 IS THE PASSING CONFIRMATION SAMPLE CORRESPONDING TO JS-SW-C01 JS-SW-C109 IS THE PASSING CONFIRMATION SAMPLE CORRESPONDING TO JS-SW-C09

FIGURE OVERVIEW GRAPHICAL SCALE (FEET)
500 0250
AREA C
AREA A
JS-SW-D04
JS-SW-D01
JS-BS-D02
JS-SW-D02
JS-BS-D01
JS-SW-D03
Last Saved: July 13, 2018 7:55:16 AM by ybourdon Drawing path: N:\Oakland\CAD\102.01422.00001 Jean Sweeney\Fig\Additional Investigation\RCAR Draft Figure Area D.dwg

AS SHOWN
8 Jean Sweeney Open Space Park, Alameda, CA
July 12, 2018
File NameProject No.

DateScale
Site
Drawing
Fig. No.

RCAR Draft Figure Area D
102.01422.00011

GRAPHICAL SCALE (FEET)
30 060
LEGEND
N
Area of Site
Detail Map of Excavation and Sampling of Area D
EXCAVATION DEPTH 9 FEET

BIKE TRAIL

PROPERTY BOUNDARY

AREA OF SITE

LOCATION OF CONFIRMATION SOIL SAMPLE

LIMITS OF EXCAVATION

PROPOSED LIMITS OF EXCAVATION
(LOCATIONS ARE APPROXIMATE)
NOTES

EXCAVATION WAS OVERDUG BASED ON ANALYTICAL RESULTS

AND FIELD OBSERVATIONS

ALL TPH ANALYSIS TABLE ONLY SHOWING ANALYTICAL

RESULTS FOR PASSING CONFIRMATION SAMPLES
SHOWN HERE WERE PERFORMED BY EPA METHOD 8015B

ALL CONFIRMATION SAMPLES WERE TREATED WITH SILICA
GEL CLEANUP (EPA METHOD 3630C) PRIOR TO ANALYSIS
MG/KG = MILLIGRAMS PER KILOGRAMS
ND<5 OR ND<1 = NOT DETECTABLE AT OR ABOVE THE STATED

LABORATORY DETECTION LIMIT
DRO = DIESEL RANGE ORGANICS
BOLD INDICATES SCREENING LEVEL EXCEEDANCE.

BOLD INDICATES SCREENING VALUE UTILIZED FOR ANALYTE.

Y = SAMPLE EXHIBITS CHROMATOGRAPHIC PATTERN WHICH

DOES NOT RESEMBLE STANDARD
ESLS = ENVIRONMENTAL SCREENING LEVELS - SHALLOW SOIL

GROUNDWATER IS A CURRENT OR POTENTIAL SOURCE OF
DRINKING WATER INTERIM FINAL DEC. 2013 SF BAY RWQCB -
TABLE A-2 COMMERCIAL/INDUSTRIAL LAND USE
SAMPLE ID CONVENTIONS:

JS = JEAN SWEENEY
BS = BASE SAMPLE
SW= SIDEWALL SAMPLE
DUP = DUPLICATE SAMPLE

FIGURE OVERVIEW GRAPHICAL SCALE (FEET)
500 0250
JS-SW-L501
JS-SW-L504
JS-BS-L501
JS-SW-L503
JS-SW-L502
Last Saved: July 13, 2018 8:19:26 AM by ybourdon Drawing path: N:\Oakland\CAD\102.01422.00001 Jean Sweeney\Fig\Additional Investigation\RCAR Draft Figure Lead Areas.dwg July 12, 2018Date
File Name9
Fig. No. AS SHOWNScale
Project No.

GRAPHICAL SCALE (FEET)
20 040
RCAR Draft Figure Lead Areas
Jean Sweeney Open Space Park, Alameda, CA
Site
Drawing
102.01422.00011
Area of Site
N
Eastern Lead Impacted Area L-5
Soil Confirmation Samples
LEGEND

AREA OF SITE

LOCATION OF CONFIRMATION SOIL SAMPLE

LIMITS OF EXCAVATION

PROPOSED LIMITS OF EXCAVATION
(LOCATIONS ARE APPROXIMATE)
NOTES
DEPTH OF EXCAVATION 3 FEET

TABLE ONLY SHOWING ANALYTICAL RESULTS FOR PASSING

CONFIRMATION SAMPLES

ALL LEAD ANALYSES SHOWN HERE WERE PERFORMED BY EPA
METHOD 6010B
MG/KG = MILLIGRAMS PER KILOGRAMS
ND<5 OR ND<1 = NOT DETECTABLE AT OR ABOVE THE STATED

LABORATORY DETECTION LIMIT
DRO = DIESEL RANGE ORGANICS
BOLD INDICATES SCREENING LEVEL EXCEEDANCE.

BOLD INDICATES SCREENING VALUE UTILIZED FOR ANALYTE.

DTSC SLS = DTSC'S OFFICE OF HUMAN AND ECOLOGICAL RISK
(HERO) HUMAN HEALTH RISK ASSESSMENT (HHRA) NOTE
NUMBER 3 (JUNE 2016) “DTSC-MODIFIED SCREENING LEVELS”

SCREENING LEVELS FOR COMMERCIAL/INDUSTRIAL SOIL
SAMPLE ID CONVENTIONS:

JS = JEAN SWEENEY
BS = BASE SAMPLE
SW= SIDEWALL SAMPLE
DUP = DUPLICATE SAMPLE

FIGURE OVERVIEW GRAPHICAL SCALE (FEET)
1000 0500
JS-SW-L402
JS-SW-L401
JS-SW-L404
JS-BS-L401
JS-SW-L403
JS-SW-L302
JS-SW-L301
JS-SW-L304
JS-BS-L301JS-SW-L303
Last Saved: July 13, 2018 8:10:01 AM by ybourdon Drawing path: N:\Oakland\CAD\102.01422.00001 Jean Sweeney\Fig\Additional Investigation\RCAR Draft Figure Lead Areas.dwg

AS SHOWN
10 Jean Sweeney Open Space Park, Alameda, CA
February 7, 2018
File NameProject No.

DateScale
Site
Drawing
Fig. No.

RCAR Draft Figure Lead Areas
102.01422.00011

GRAPHICAL SCALE (FEET)
20 040
N
Area of Site
Eastern Lead Impacted Areas L-3 & L-4
Soil Confirmation Samples
LEGEND

AREA OF SITE

LOCATION OF CONFIRMATION SOIL SAMPLE

LIMITS OF EXCAVATION

PROPOSED LIMITS OF EXCAVATION
(LOCATIONS ARE APPROXIMATE)
NOTES
DEPTH OF EXCAVATION 3 FEET

TABLE ONLY SHOWING ANALYTICAL RESULTS FOR PASSING

CONFIRMATION SAMPLES

ALL LEAD ANALYSES SHOWN HERE WERE PERFORMED BY EPA
METHOD 6010B
MG/KG = MILLIGRAMS PER KILOGRAMS
ND<5 OR ND<1 = NOT DETECTABLE AT OR ABOVE THE STATED

LABORATORY DETECTION LIMIT
DRO = DIESEL RANGE ORGANICS
BOLD INDICATES SCREENING LEVEL EXCEEDANCE.

BOLD INDICATES SCREENING VALUE UTILIZED FOR ANALYTE.

DTSC SLS = DTSC'S OFFICE OF HUMAN AND ECOLOGICAL RISK
(HERO) HUMAN HEALTH RISK ASSESSMENT (HHRA) NOTE
NUMBER 3 (JUNE 2016) “DTSC-MODIFIED SCREENING LEVELS”

SCREENING LEVELS FOR COMMERCIAL/INDUSTRIAL SOIL
SAMPLE ID CONVENTIONS:

JS = JEAN SWEENEY
BS = BASE SAMPLE
SW= SIDEWALL SAMPLE
SU = SAMPLE TAKEN FROM BELOW SUMP
DUP = DUPLICATE SAMPLE

FIGURE OVERVIEW GRAPHICAL SCALE (FEET)
500 0250
JS-SW-L202
JS-SW-L201
JS-SW-L204
JS-BS-L1201
JS-SW-L203
JS-SW-L102
JS-SW-L101
JS-SW-L104
JS-BS-L101
JS-SW-L103
JS-BS-L201
Last Saved: July 13, 2018 8:02:32 AM by ybourdon Drawing path: N:\Oakland\CAD\102.01422.00001 Jean Sweeney\Fig\Additional Investigation\RCAR Draft Figure Lead Areas.dwg

AS SHOWN
11 Jean Sweeney Open Space Park, Alameda, CA
July 12, 2018
File NameProject No.

DateScale
Site
Drawing
Fig. No.

RCAR Draft Figure Lead Areas
102.01422.00011

GRAPHICAL SCALE (FEET)
20 040
N
Area of Site
Eastern Lead Impacted Areas L1 & L2
Soil Confirmation Samples

BIKE TRAIL
LEGEND

PROPERTY BOUNDARY

AREA OF SITE

LOCATION OF CONFIRMATION SOIL SAMPLE

LIMITS OF EXCAVATION

PROPOSED LIMITS OF EXCAVATION
(LOCATIONS ARE APPROXIMATE)
NOTES
EXCAVATION DEPTH 4 FEET
DEPTH OF EXCAVATION 3 FEET

TABLE ONLY SHOWING ANALYTICAL RESULTS FOR PASSING CONFIRMATION SAMPLES ALL LEAD ANALYSES SHOWN HERE WERE PERFORMED BY EPA METHOD 6010B MG/KG = MILLIGRAMS PER KILOGRAMS
ND<5 OR ND<1 = NOT DETECTABLE AT OR ABOVE THE STATED LABORATORY

DETECTION LIMIT
DRO = DIESEL RANGE ORGANICS
BOLD INDICATES SCREENING LEVEL EXCEEDANCE.

BOLD INDICATES SCREENING VALUE UTILIZED FOR ANALYTE.

DTSC SLS = DTSC'S OFFICE OF HUMAN AND ECOLOGICAL RISK (HERO) HUMAN HEALTH RISK ASSESSMENT (HHRA) NOTE NUMBER 3 (JUNE 2016) “DTSC-MODIFIED SCREENING LEVELS” SCREENING LEVELS FOR COMMERCIAL/INDUSTRIAL SOIL SAMPLE ID CONVENTIONS:

JS = JEAN SWEENEY
BS = BASE SAMPLE
SW= SIDEWALL SAMPLE
DUP = DUPLICATE SAMPLE
JS-BS-L1201 IS THE PASSING CONFIRMATION SAMPLE CORRESPONDING TO JS-BS-L201

FIGURE OVERVIEW GRAPHICAL SCALE (FEET)
500 0250

CONSTITUTION WAY

BICYCLE
TRAIL

SECTION
4' BURIED

CONTAMINATED
SOIL
3' NATIVE SOIL
12' BICYCLE
TRAIL
Last Saved: July 16, 2018 12:41:46 PM by ybourdon Drawing path: N:\Oakland\CAD\102.01422.00001 Jean Sweeney\Fig\Additional Investigation\Cap Cross Section and Placement Detail.dwg

AS SHOWN
12 Jean Sweeney Open Space Park, Alameda, CA
July 12, 2018
File NameProject No.

DateScale
Site
Drawing
Fig. No.

Cap Cross Section and Placement Detail102.01422.00011

GRAPHICAL SCALE (FEET)
220 0440
N
LEGEND

PROPERTY BOUNDARY

LOCATION OF CAPPED CONTAMINATED SOIL

CONCRETE AREAS OF WALKING TRAIL AND BIKE TRAIL
(LOCATIONS ARE APPROXIMATE)
Site Plan Showing Cap Cross Section

GEOMEMBRANE LINER

GEOTEXTILE LINER

SUBGRADE ENHANCEMENT
GEOTEXTILE CLASS B1.

EXTENT MIN. 12" BEYOUND

EDGE OF PAVING
12" CLASS III AB
COMPACT TO 95% (MIN.)
RELATIVE COMPACTION.3" TYPE A

HOT MIX ASPHALT (HMA)

OVEREXCAVATE MINIMUM
12" BELOW SUBGARDE;
COMPACT TO 95% (MIN)
RELATIVE COMPACTION.

SOIL CONSOLIDATION AREA WITH CAP CROSS SECTIONASPHALT PAVING DETAIL 12 2 FLUSH WITH

ADJ GROUND

WALKING TRAIL

CONSOLIDATION AREA WITH CAP

BIKE TRAIL

TABLES

Table 1 ‐ JSOSP RACR ‐ RAO Exceedance Summary
AOPC COC EXCEEDING RAO MAXIMUM
CONCENTRATION (mg/kg)
Petroleum Hydrocarbons 4,440 (TPH‐MO)*
Lead 400
PCBs 1 (Aroclor 1260)
Benzo(a)anthracene 5.7
Chrysene 15
Benzo(a)pyrene 2.9
Naphthalene 79
Eastern Lead‐Impacted
Area Lead 2,700
Wood St. Foundation Petroleum Hydrocarbons 670 (Bunker‐C) Benzo(b)flouranthene 8
Benzo(a)pyrene 5
Maintenance Area
Former Tenant Area
* Excludes petroleum‐saturated soil analytical results.

Table 2 ‐ JSOSP RACR ‐ Average Concentrations of PM10 during Excavation activities in Milligrams per Meter Cubed (μg/m3) Day Northwest Northeast Southwest Southeast
9/8/2017 11 30 30 63
9/11/2017 22 51 26 21
9/12/2017 21 57 32 39
9/13/2017 N/A1 34 1 20
9/14/2017 28 65 39 N/A2
9/15/2017 24 43 35 40
9/21/2017 10 30 18 18
9/22/2017 24 60 26 29
9/25/2017 63 79 23 26
9/26/2017 10 N/A3 69 N/A4
Screening Value
Notes:

Time Weighted Averages Calculated by Air Monitors at the end of each day. 1.

Screening value of 80 μg/m3 was determined by adding the background level of PM10 of 30μg/m3 to the Bay Area Air Quality Mangament Disctrict (BAAQMD) nuisance level of 50 μg/m3.

2. Reading inaccurate due to lack of consistency with visual operations and other air monitor readings

3. Reading inaccurate due to lawn Mowing, weed whacking, and clearing alongside outside edge of Site

4. Reading inaccurate activities unrelated to excavation. Placement of mulch filled wattle caused excess dust and debris in the air.

5. The same air monitors were used for each location everyday air monitoring was used

6. In the case two or more air logging periods, the time weighted average was calculated between the two overall average concentrations of PM10 and is shown above
80 Table 3 ‐ JSOSP RACR ‐ Summary of Former Maintenance Area Confirmation Sample Analytical Exceedances and Resampling Results
Excavation Area Sample ID Initial or Step‐
Out
Sample
Depth (feet) DRO (mg/kg) Motor Oil
(mg/kg)
Bunker C
(mg/kg)
JS‐BS‐A01 Initial 3.5 310.0 Y 2,100 4,400
JS‐BS‐A101 Step‐Out4.52.3 Y11 32
JS‐BS‐A10 Initial 3.572.0 Y 420 4,400
JS‐BS‐A110 Step‐Out5.512.0 Y56 130
JS‐BS‐B09 Initial 3.594.0 Z480 1200
JS‐BS‐B109 Step‐Out5.56.3 Y33 74
JS‐SW‐B02 Initial 2 130.0 Y 410 1000
JS‐BS‐B13 Step‐Out3.513.0 Y51 120
JS‐SW‐B07 Initial 2 150.0 Y 280 780
JS‐SW‐B107 Step‐Out435.0 Y130 310
JS‐SW‐C01 Initial 4 63.0 Y 380 870
JS‐SW‐C06 Step‐Out 7 24.0 Y 44 130
JS‐SW‐C09 Initial 7 510.0 Y 2,300 5,700
JS‐SW‐C109 Step‐Out 9 6.2 Y ND<5.0 20 Y
110 500 500
Notes:

Full Analytical Results for the Former Maintenance Area shown in Table 5 Step‐Out Samples taken in same location as initial samples but after over excavation Silica Gel Cleanup Method (SGCU) used for all samples shown in this table mg/kg = milligrams per kilograms
ND = not detectable at or above the stated laboratory detection limit DRO = Diesel Range Organics
Y = Sample exhibits chromatographic pattern which does not resemble standard Z = Sample exhibits unknown single peak or peaks
ESLs = Environmental Screening Levels ‐ Shallow Soil Groundwater Is a Current or Potential Source of Drinking Water Interim Final Dec. 2013 SF Bay RWQCB ‐ Table A‐2
Bold Red indicates screening level exceedance.

Non‐Bold indicates sample containing screening level exceedance for analysis with SGCU Bold Black indicates screening value utilized for analyte.

JS‐BS‐A101 is the passing Step‐Out confirmation sample corresponding to JS‐BS‐A01 JS‐BS‐A110 is the passing Step‐Out confirmation sample corresponding to JS‐BS‐A10 JS‐BS‐B109 is the passing Step‐Out confirmation sample corresponding to JS‐BS‐B09 JS‐BS‐B13 is the passing Step‐Out confirmation sample corresponding to JS‐SW‐B02 Area B
Area C
ESLs
Area A
Table 4 ‐ JSOSP RACR ‐ Eastern Lead Impacted Area L2 Confirmation Sample Analytical Results
Sample ID Initial or Step‐Out Sample Depth (feet) Total Lead (mg/kg) JS‐SW‐L201 Initial 2 7.4
JS‐SW‐L202 Initial 2 25
JS‐SW‐L203 Initial 2 14
JS‐SW‐L204 Initial 2 43
JS‐BS‐L201 Initial 3 1,000
JS‐BS‐L1201 Step‐Out 4 21
320DTSC SLs
Notes:

Full Analytical Results for the Former Maintenance Area shown in Table 6 Step‐Out Samples taken in same location as initial samples but after overexcavation mg/kg = milligrams per kilograms
Bold Red indicates screening level exceedance.

Non‐Bold indicates sample containing screening level exceedance Bold Black indicates screening value utilized for analyte.

DTSC SLs = DTSC’s Office of Human and Ecological Risk (HERO) Human Health Risk Assessment (HHRA) Note Number 3 (June 2016) “DTSC‐modified Screening Levels” Screening Levels for Commercial/Industrial Soil
JS‐BS‐L1201 is the passing Step‐Out confirmation sample corresponding to JS‐BS‐L201 Table 5 ‐ JSOSP RACR ‐ Former Maintenance Area Confirmation Samples Full Analytical Results
NO SGCU SGCU NO SGCU SGCU NO SGCU SGCU
JS‐BS‐A01 9/8/2017 3.5 300 Y 310 Y 2,400 2,100 5,500 4,400 JS‐BS‐A101 9/14/2017 4.5 3.7 Y 2.3 Y 20 11 56 32
JS‐BS‐A02 9/8/2017 3.5 14 Y 9.7 Y 80 52 180 120
JS‐BS‐A03 9/8/2017 3.5 14 Y 11 Y 60 36 140 87
JS‐BS‐A04 9/8/2017 3.5 4.2 Y 3.1 Y 32 20 72 42
JS‐BS‐A04DUP 9/8/2017 3.5 2.4 Y 2.0 Y 19 13 43 27
JS‐BS‐A05 9/8/2017 3.5 5.6 Y 3.9 Y 42 24 93 54
JS‐BS‐A06 9/11/2017 3.5 24 Y 15 Y 91 53 210 130
JS‐BS‐A07 9/11/2017 3.5 27 Y 16 Y 100 55 240 130
JS‐BS‐A08 9/11/2017 3.5 130 Y 77 Y 230 120 660 370
JS‐BS‐A09 9/11/2017 3.5 36 Y 27 Y 120 80 300 200
JS‐BS‐A109 9/21/2017 5.5 43 Y 33 Y 86 88 250 240
JS‐BS‐A10 9/11/2017 3.5 96 Y 72 Y 660 420 1,500 930
JS‐BS‐A110 9/21/2017 5.5 26 Y 12 Y 64 56 170 130
JS‐BS‐A11 9/11/2017 3.5 12 Y 7.6 Y 51 33 120 76
JS‐BS‐A12 9/11/2017 3.5 12 Y 7.1 Y 55 34 120 75
JS‐BS‐A13 9/11/2017 3.5 12 Y 6.1 Y 50 31 120 69
JS‐BS‐A13DUP 9/11/2017 3.5 11 Y 8.3 Y 45 34 110 80
JS‐BS‐A14 9/11/2017 3.5 20 Y 9.2Y 81 39 200 95
JS‐SW‐A01 9/8/2017 2 5.5 Y 4.3 Y 81 53 180 120
JS‐SW‐A02 9/11/2017 2 2.2 Y 1.3 Y 16 12 36 26
JS‐SW‐A03 9/11/2017 2 33 Y 19 Y 170 86 390 210
JS‐SW‐A04 9/11/2017 2 10 Y 7.4 Y 29 19 69 49
JS‐SW‐A05 9/11/2017 2 7.3 Y 6.1 Y 5 ND<5.0 25 19 Y
JS‐SW‐A06 9/11/2017 2 14 Y 12 Y 60 46 140 110
JS‐SW‐A07 9/11/2017 2 13 Y 9.4 Y 52 39 120 90
JS‐SW‐A08 9/11/2017 2 8.4 Y 6.2 Y 44 32 100 74
JS‐BS‐B01 9/12/2017 3.5 15 Y 8.2 Y 37 21 99 41
JS‐BS‐B02 9/12/2017 3.5 ND<1.0 ND<1.0 ND<5.0 ND<5.0 ND<5.0 ND<5.0 JS‐BS‐B03 9/12/2017 3.5 2.0 Y ND<1.0 ND<5.0 ND<5.0 6.0 5.2 JS‐BS‐B04 9/12/2017 3.5 6.9 Y 5.0 Y 14 9.6 33 28
JS‐BS‐B05 9/12/2017 3.5 ND<1.0 ND<1.0 ND<5.0 ND<5.0 ND<5.0 ND<5.0 JS‐BS‐B06 9/12/2017 3.5 1.7 Y ND<1.0 7.2 ND<5.0 14 10
JS‐BS‐B07 9/12/2017 3.5 ND<1.0 ND<1.0 ND<5.0 ND<5.0 ND<5.0 ND<5.0 JS‐BS‐B08 9/12/2017 3.5 ND<0.99 ND<0.99 ND<5.0 ND<5.0 ND<5.0 ND<5.0 JS‐BS‐B09 9/12/2017 3.5 160 Z 94 Y 760 480 1,500 Z 1,200 JS‐BS‐B109 9/21/2017 5.5 5.2 Y 6.3 Y 28 33 66 74
JS‐BS‐B11 9/14/2017 3.5 26 Y 18 Y 65 67 170 160
JS‐BS‐B13 9/14/2017 3.5 22 Y 13 Y 51 51 140 120
JS‐BS‐B15 9/14/2017 3.5 19 Y 12 Y 49 47 130 110
JS‐BS‐B18 9/15/2017 3.5 9.1 Y 9.9 Y 45 55 110 130
Depth
(feet) DRO Motor Oil Bunker C
TPHs
Date SampledSample ID
1 Table 5 ‐ JSOSP RACR ‐ Former Maintenance Area Confirmation Samples Full Analytical Results
NO SGCU SGCU NO SGCU SGCU NO SGCU SGCU
Depth
(feet) DRO Motor Oil Bunker C
TPHs
Date SampledSample ID
JS‐BS‐B19 9/15/2017 3.5 12 Y 7.3 Y 39 35 99 86
JS‐BS‐B20 9/15/2017 3.5 ND<1.0 ND<1.0 ND<5.0 ND<5.0 ND<5.0 ND<5.0 JS‐SW‐B01 9/12/2017 2 14 Y 6.8 Y 69 38 130 87
JS‐SW‐B02 9/12/2017 2 130 Y 130 Y 500 410 980 1,000
JS‐SW‐B03 9/12/2017 2 ND<1.0 ND<1.0 ND<5.0 ND<5.0 7.1 Y 8.6 Y JS‐SW‐B04 9/12/2017 2 ND<1.0 ND<1.0 ND<5.0 ND<5.0 ND<5.0 ND<5.0 JS‐SW‐B05 9/12/2017 2 ND<1.0 ND<1.0 ND<5.0 ND<5.0 ND<5.0 ND<5.0 JS‐SW‐B06 9/12/2017 2 ND<1.0 ND<1.0 ND<5.0 ND<5.0 ND<5.0 ND<5.0 JS‐SW‐B07 9/12/2017 2 230 Y 150 Y 370 280 850 780
JS‐SW‐B107 9/21/2017 4 43 Y 35 Y 110 130 290 310
JS‐SW‐B18 9/15/2017 2 ND<1.0 ND<1.0 ND<5.0 ND<5.0 ND<5.0 ND<5.0 JS‐SW‐B19 9/15/2017 2 10 Y 12 Y 67 84 150 190
JS‐SW‐B20 9/15/2017 2 4.8 Y 3.5 Y 37 39 85 88
JS‐BS‐C01 9/22/2017 8.5 12 Y 9.5 Y 21 27 60 71
JS‐BS‐C02 9/22/2017 8.5 16 Y 11 Y 29 31 84 82
JS‐BS‐C03 9/29/2017 8.5 21 Y 14 Y 27 19 93 66
JS‐BS‐C04 9/29/2017 4.5 ND<1.0 ND<1.0 ND<5.0 ND<5.0 8.1 Y ND<5.0 JS‐BS‐C104 9/29/2017 9.5 3.1 Y ND<1.0 9.1 5.3 22 12
JS‐SW‐C01 9/22/2017 4 67 Y 63 Y 320 380 760 870
JS‐SW‐C02 9/22/2017 4 2.3 Y 1.3 Y 9.5 9.5 22 22
JS‐SW‐C03 9/22/2017 4 2.6 Y 2.5 Y 14 16 31 37
JS‐SW‐C04 9/22/2017 4 1.6 Y ND<0.99 ND<5.0 ND<5.0 11 11 JS‐SW‐C05 9/29/2017 7 27 Y 20 Y 83 50 210 140
JS‐SW‐C06 9/29/2017 7 31 Y 24 Y 68 44 190 130
JS‐SW‐C07 9/29/2017 7 5.0 Y 5.1 Y 11 8.9 32 27
JS‐SW‐C08 9/29/2017 7 4.8 Y 4.7 Y 16 11 38 30
JS‐SW‐C09 9/29/2017 7 670 Y 510 Y 2,700 2,300 6,900 5,700 JS‐SW‐C109 9/29/2017 9 8.4 Y 6.2 Y 5.6 Y ND<5.0 28 Y 20 Y JS‐SW‐C10 9/29/2017 7 7.2 Y 5.7 Y 25 17 63 44
JS‐SW‐C11 9/29/2017 7 50 Y 32 Y 79 52 250 170
JS‐BS‐D01 9/13/2017 3.5 36 Y 27 Y 200 200 470 440
JS‐BS‐D02 9/13/2017 3.5 ND<1.0 ND<1.0 ND<5.0 ND<5.0 6.4 ND<5.0 JS‐SW‐D01 9/13/2017 2 5.5 Y 3.9 Y 21 13 51 33
JS‐SW‐D02 9/13/2017 2 8.3 Y 6.6 Y 23 17 59 45
JS‐SW‐D03 9/21/2017 2 19 Y 11 Y 50 50 130 120
JS‐SW‐D04 9/21/2017 2 ND<1.0 ND<1.0 ND<5.0 ND<5.0 7.7 5.8 JS‐SU‐B01 9/22/2017 5.5 1.6 Y ND<1.0 ND<5.0 ND<5.0 ND<5.0 ND<5.0 JS‐SU‐B02 9/22/2017 5.5 ND<1.0 ND<1.0 ND<5.0 ND<5.0 ND<5.0 ND<5.0 2 Table 5 ‐ JSOSP RACR ‐ Former Maintenance Area Confirmation Samples Full Analytical Results
NO SGCU SGCU NO SGCU SGCU NO SGCU SGCU
Depth
(feet) DRO Motor Oil Bunker C
TPHs
Date SampledSample ID
JS‐SU‐B03 9/26/2017 8.5 13 Y 9.2 Y 18 15 60 46
JS‐SU‐B04 9/26/2017 8.5 10 Y 4.9 Y 12 7.6 42 24
110 110 500 500 500 500
Notes:

All TPH analyses performed during 2017 investigation were performed by EPA Method 8015B All samples within columns under "SGCU" were treated with Silica Gel Cleanup (EPA Method 3630C) prior to analysis All samples within columns under "No SGCU" were not treated with Silica Gel Cleanup (EPA Method 3630C) prior to analysis mg/kg = milligrams per kilograms
ND = not detectable at or above the stated laboratory detection limit DRO = Diesel Range Organics
Y = Sample exhibits chromatographic pattern which does not resemble standard Z = Sample exhibits unknown single peak or peaks
ESLs = Environmental Screening Levels ‐ Shallow Soil Groundwater Is a Current or Potential Source of Drinking Water Interim Final Dec. 2013 SF Bay RWQCB ‐ Table A‐2
Bold Red indicates screening level exceedance.

Non‐Bold indicates sample containing screening level exceedance for analysis with SGCU Bold Black indicates screening value utilized for analyte.

JS = Jean Sweeney
BS = Base Sample
SW = Sidewall Sample
SU = Sample Taken from Below former location of Sump
DUP = Duplicate Sample
‐A = Sample Collected from Area A
‐B = Sample Collected from Area B
‐C = Sample Collected from Area C
‐D = Sample Collected from Area D
JS‐BS‐A101 is the passing Step‐Out confirmation sample corresponding to JS‐BS‐A01 JS‐BS‐A110 is the passing Step‐Out confirmation sample corresponding to JS‐BS‐A10 JS‐BS‐B109 is the passing Step‐Out confirmation sample corresponding to JS‐BS‐B09 JS‐BS‐B13 is the passing Step‐Out confirmation sample corresponding to JS‐SW‐B02 JS‐SW‐B107 is the passing Step‐Out confirmation sample corresponding to JS‐SW‐B07 JS‐SW‐C06 is the passing Step‐Out confirmation sample corresponding to JS‐SW‐C01 JS‐SW‐C109 is the passing Step‐Out confirmation sample corresponding to JS‐SW‐C09 ESLs
3 Table 6 ‐ JSOSP RACR ‐ Eastern Lead Impacted Soil Confirmation Samples Full Analytical Results
Total Lead
(mg/kg)
JS‐SW‐L101 9/15/2017 2 88
JS‐SW‐L102 9/15/2017 2 27
JS‐SW‐L103 9/15/2017 2 7.8
JS‐SW‐L104 9/15/2017 2 2.7
JS‐BS‐L101 9/15/2017 3 120
JS‐SW‐L201 9/15/2017 2 7.4
JS‐SW‐L202 9/15/2017 2 25
JS‐SW‐L203 9/15/2017 2 14
JS‐SW‐L204 9/15/2017 2 43
JS‐BS‐L201 9/15/2017 3 1,000
JS‐BS‐L1201 9/21/2017 4 21
JS‐SW‐L301 9/15/2017 2 17
JS‐SW‐L302 9/15/2017 2 14
JS‐SW‐L303 9/15/2017 2 8.7
JS‐SW‐L304 9/15/2017 2 8.2
JS‐BS‐L301 9/15/2017 3 2.4
JS‐SW‐L401 9/15/2017 2 7.0
JS‐SW‐L402 9/15/2017 2 7.1
JS‐SW‐L403 9/15/2017 2 23
JS‐SW‐L404 9/15/2017 2 4.5
JS‐BS‐L401 9/15/2017 3 150
JS‐SW‐L501 9/15/2017 2 ND<1.0
JS‐SW‐L502 9/15/2017 2 3.9
JS‐SW‐L503 9/15/2017 2 5.5
JS‐SW‐L504 9/15/2017 2 5.3
JS‐BS‐L501 9/15/2017 3 7.6
320
Sample ID Sample Date
DTSC SLs
Depth
(feet)
Notes:

All Lead analyses performed during 2017 investigation were performed by EPA Method 6010B
mg/kg = milligrams per kilograms
Bold Red indicates screening level exceedance.

Non‐Bold indicates sample containing screening level exceedance Bold Black indicates screening value utilized for analyte.

DTSC SLs = DTSC’s Office of Human and Ecological Risk (HERO) Human Health Risk Assessment (HHRA) Note Number 3 (June 2016) “DTSC‐modified Screening Levels” Screening Levels for Commercial/Industrial Soil
JS = Jean Sweeney
BS = Base Sample
SW = Sidewall Sample
SU = Sample Taken from Below former location of Sump
DUP = Duplicate Sample
‐A = Sample Collected from Area A
‐B = Sample Collected from Area B
‐C = Sample Collected from Area C
‐D = Sample Collected from Area D
JS‐BS‐L1201 is the passing Step‐Out confirmation sample corresponding to JS‐BS‐L201

APPENDIX A

LABORATORY ANALYTICAL REPORTS

Laboratory Job Number 292258

ANALYTICAL REPORT
SLR International Project : 102.01422.00001 110 11th Street Location : Jean Sweeney Oakland, CA 94607 Level : II
Sample ID
Lab ID
JS-BS-A01 292258-001
JS-BS-A02 292258-002
JS-BS-A03 292258-003
JS-BS-A04 292258-004
JS-BS-A04 DUP 292258-005
JS-BS-A05 292258-006
JS-SW-A01 292258-007
This data package has been reviewed for technical correctness and completeness.

Release of this data has been authorized by the Laboratory Manager or the Manager's designee, as verified by the following signature. The results contained in this report meet all requirements of NELAC and pertain only to those samples which were submitted for analysis. This report may be reproduced only in its entirety.

Signature:

Date: 09/12/2017
Tracy Babjar
Project Manager
[email protected]
(510) 204-2226 Ext 13107
CA ELAP# 2896, NELAP# 4044-001
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CASE NARRATIVE
Laboratory number: 292258
Client: SLR International
Project: 102.01422.00001
Location: Jean Sweeney
Request Date: 09/08/17
Samples Received: 09/08/17
This data package contains sample and QC results for seven soil samples, requested for the above referenced project on 09/08/17. The samples were received cold and intact. This report was revised and reiussed on 9/14/17 to include revised reporting units.

TPH-Extractables by GC (EPA 8015B):

JS-BS-A01 (lab # 292258-001) was diluted due to the dark and viscous nature of the sample extract. No other analytical problems were encountered.

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Detections Summary for 292258
Results for any subcontracted analyses are not included in this summary.

Client : SLR International
Project : 102.01422.00001
Location : Jean Sweeney
Client Sample ID : JS-BS-A01 Laboratory Sample ID : 292258-001 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 300 Y 20 mg/Kg As Recd 20.00 EPA 8015B EPA 3550C Diesel C10-C24 310 Y 10 mg/Kg As Recd 10.00 EPA 8015B EPA 3550C Motor Oil C24-C36 2,400 100 mg/Kg As Recd 20.00 EPA 8015B EPA 3550C Motor Oil C24-C36 2,100 50 mg/Kg As Recd 10.00 EPA 8015B EPA 3550C Bunker C C12-C40 5,500 100 mg/Kg As Recd 20.00 EPA 8015B EPA 3550C Bunker C C12-C40 4,400 50 mg/Kg As Recd 10.00 EPA 8015B EPA 3550C Client Sample ID : JS-BS-A02 Laboratory Sample ID : 292258-002 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 14 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 9.7 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 80 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 52 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 180 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 120 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-A03 Laboratory Sample ID : 292258-003 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 14 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 11 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 60 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 36 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 140 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 87 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-A04 Laboratory Sample ID : 292258-004 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 4.2 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 3.1 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 32 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 20 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 72 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 42 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C

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Client Sample ID : JS-BS-A04 DUP Laboratory Sample ID : 292258-005 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 2.4 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 2.0 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 19 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 13 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 43 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 27 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-A05 Laboratory Sample ID : 292258-006 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 5.6 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 3.9 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 42 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 24 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 93 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 54 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-SW-A01 Laboratory Sample ID : 292258-007 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 5.5 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 4.3 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 81 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 53 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 180 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 120 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Y = Sample exhibits chromatographic pattern which does not resemble standard

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Total Extractable Hydrocarbons
Lab #: 292258 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Sampled: 09/08/17 Units: mg/Kg Received: 09/08/17 Basis: as received Prepared: 09/11/17 Batch#: 251487
Field ID: JS-BS-A01 Analyzed: 09/11/17 Type: SAMPLE Cleanup Method: EPA 3630C Lab ID: 292258-001
Analyte Result RL Diln Fac Diesel C10-C24 300 Y 20 20.00 Diesel C10-C24 (SGCU) 310 Y 10 10.00 Motor Oil C24-C36 2,400 100 20.00 Motor Oil C24-C36 (SGCU) 2,100 50 10.00 Bunker C C12-C40 5,500 100 20.00 Bunker C C12-C40 (SGCU) 4,400 50 10.00 Surrogate %REC Limits Diln Fac
o-Terphenyl DO 55-133 20.00
o-Terphenyl (SGCU) DO 55-133 10.00
Field ID: JS-BS-A02 Diln Fac: 1.000 Type: SAMPLE Analyzed: 09/11/17 Lab ID: 292258-002 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 14 Y 1.0 Diesel C10-C24 (SGCU) 9.7 Y 1.0 Motor Oil C24-C36 80 5.0 Motor Oil C24-C36 (SGCU) 52 5.0 Bunker C C12-C40 180 5.0 Bunker C C12-C40 (SGCU) 120 5.0 Surrogate %REC Limits
o-Terphenyl 106 55-133
o-Terphenyl (SGCU) 104 55-133
Field ID: JS-BS-A03 Diln Fac: 1.000 Type: SAMPLE Cleanup Method: EPA 3630C Lab ID: 292258-003
Analyte Result RL Analyzed Diesel C10-C24 14 Y 1.0 09/11/17 Diesel C10-C24 (SGCU) 11 Y 1.0 09/12/17 Motor Oil C24-C36 60 5.0 09/11/17 Motor Oil C24-C36 (SGCU) 36 5.0 09/12/17 Bunker C C12-C40 140 5.0 09/11/17 Bunker C C12-C40 (SGCU) 87 5.0 09/12/17 Surrogate %REC Limits Analyzed
o-Terphenyl 109 55-133 09/11/17
o-Terphenyl (SGCU) 92 55-133 09/12/17
Y= Sample exhibits chromatographic pattern which does not resemble standard DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

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Total Extractable Hydrocarbons
Lab #: 292258 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Sampled: 09/08/17 Units: mg/Kg Received: 09/08/17 Basis: as received Prepared: 09/11/17 Batch#: 251487
Field ID: JS-BS-A04 Diln Fac: 1.000 Type: SAMPLE Cleanup Method: EPA 3630C Lab ID: 292258-004
Analyte Result RL Analyzed Diesel C10-C24 4.2 Y 1.0 09/11/17 Diesel C10-C24 (SGCU) 3.1 Y 1.0 09/12/17 Motor Oil C24-C36 32 5.0 09/11/17 Motor Oil C24-C36 (SGCU) 20 5.0 09/12/17 Bunker C C12-C40 72 5.0 09/11/17 Bunker C C12-C40 (SGCU) 42 5.0 09/12/17 Surrogate %REC Limits Analyzed
o-Terphenyl 96 55-133 09/11/17
o-Terphenyl (SGCU) 96 55-133 09/12/17
Field ID: JS-BS-A04 DUP Diln Fac: 1.000 Type: SAMPLE Cleanup Method: EPA 3630C Lab ID: 292258-005
Analyte Result RL Analyzed Diesel C10-C24 2.4 Y 1.0 09/11/17 Diesel C10-C24 (SGCU) 2.0 Y 1.0 09/12/17 Motor Oil C24-C36 19 5.0 09/11/17 Motor Oil C24-C36 (SGCU) 13 5.0 09/12/17 Bunker C C12-C40 43 5.0 09/11/17 Bunker C C12-C40 (SGCU) 27 5.0 09/12/17 Surrogate %REC Limits Analyzed
o-Terphenyl 105 55-133 09/11/17
o-Terphenyl (SGCU) 94 55-133 09/12/17
Field ID: JS-BS-A05 Diln Fac: 1.000 Type: SAMPLE Cleanup Method: EPA 3630C Lab ID: 292258-006
Analyte Result RL Analyzed Diesel C10-C24 5.6 Y 1.0 09/11/17 Diesel C10-C24 (SGCU) 3.9 Y 1.0 09/12/17 Motor Oil C24-C36 42 5.0 09/11/17 Motor Oil C24-C36 (SGCU) 24 5.0 09/12/17 Bunker C C12-C40 93 5.0 09/11/17 Bunker C C12-C40 (SGCU) 54 5.0 09/12/17 Surrogate %REC Limits Analyzed
o-Terphenyl 105 55-133 09/11/17
o-Terphenyl (SGCU) 83 55-133 09/12/17
Y= Sample exhibits chromatographic pattern which does not resemble standard DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

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Total Extractable Hydrocarbons
Lab #: 292258 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Sampled: 09/08/17 Units: mg/Kg Received: 09/08/17 Basis: as received Prepared: 09/11/17 Batch#: 251487
Field ID: JS-SW-A01 Diln Fac: 1.000 Type: SAMPLE Cleanup Method: EPA 3630C Lab ID: 292258-007
Analyte Result RL Analyzed Diesel C10-C24 5.5 Y 1.0 09/11/17 Diesel C10-C24 (SGCU) 4.3 Y 1.0 09/12/17 Motor Oil C24-C36 81 5.0 09/11/17 Motor Oil C24-C36 (SGCU) 53 5.0 09/12/17 Bunker C C12-C40 180 5.0 09/11/17 Bunker C C12-C40 (SGCU) 120 5.0 09/12/17 Surrogate %REC Limits Analyzed
o-Terphenyl 99 55-133 09/11/17
o-Terphenyl (SGCU) 82 55-133 09/12/17
Type: BLANK Analyzed: 09/11/17 Lab ID: QC900232 Cleanup Method: EPA 3630C Diln Fac: 1.000
Analyte Result RL
Diesel C10-C24 ND 1.0 Diesel C10-C24 (SGCU) ND 1.0 Motor Oil C24-C36 ND 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 ND 5.0 Bunker C C12-C40 (SGCU) ND 5.0 Surrogate %REC Limits
o-Terphenyl 105 55-133
o-Terphenyl (SGCU) 92 55-133
Y= Sample exhibits chromatographic pattern which does not resemble standard DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

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Batch QC Report
Total Extractable Hydrocarbons
Lab #: 292258 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Type: LCS Diln Fac: 1.000 Lab ID: QC900233 Batch#: 251487 Matrix: Soil Prepared: 09/11/17 Units: mg/Kg Analyzed: 09/11/17 Cleanup Method: EPA 3630C
Analyte Spiked Result %REC Limits Diesel C10-C24 49.87 57.02 114 51-137 Diesel C10-C24 (SGCU) 49.87 51.66 104 51-137 Surrogate %REC Limits
o-Terphenyl 107 55-133
o-Terphenyl (SGCU) 97 55-133
SGCU= Silica gel cleanup

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Batch QC Report
Total Extractable Hydrocarbons
Lab #: 292258 Location: Jean Sweeney
Client: SLR International Prep: EPA 3550C
Project#: 102.01422.00001 Analysis: EPA 8015B
Field ID: ZZZZZZZZZZ Batch#: 251487
MSS Lab ID: 292259-001 Sampled: 09/08/17
Matrix: Soil Received: 09/08/17
Units: mg/Kg Prepared: 09/11/17
Basis: as received Analyzed: 09/11/17
Diln Fac: 1.000
Type: MS Cleanup Method: EPA 3630C
Lab ID: QC900234
Analyte MSS Result Spiked Result %REC Limits
Diesel C10-C24 (SGCU) 14.92 49.82 63.20 97 36-143 Surrogate %REC Limits
o-Terphenyl (SGCU) 93 55- 133
Type: MSD Cleanup Method: EPA 3630C
Lab ID: QC900235
Analyte Spiked Result %REC Limits RPD Lim
Diesel C10-C24 (SGCU) 50.07 53.49 77 36- 143 17 55
Surrogate %REC Limits
o-Terphenyl (SGCU) 78 55- 133
RPD= Relative Percent Difference
SGCU= Silica gel cleanup

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Laboratory Job Number 292369

ANALYTICAL REPORT
SLR International Project : 102.01422.00001 110 11th Street Location : Jean SWeeney Oakland, CA 94607 Level : II
Sample ID
Lab ID
JS-SW-D01 292369-001
JS-SW-D02 292369-002
JS-BS-D01 292369-003
JS-BS-D02 292369-004
This data package has been reviewed for technical correctness and completeness.

Signature:

Date: 09/15/2017
Patrick McCarthy
Project Manager
[email protected]
(510) 204-2236
CA ELAP# 2896, NELAP# 4044-001
1 of 19

CASE NARRATIVE
Laboratory number: 292369
Client: SLR International
Project: 102.01422.00001
Location: Jean SWeeney
Request Date: 09/13/17
Samples Received: 09/13/17
This data package contains sample and QC results for four soil samples, requested for the above referenced project on 09/13/17. The samples were received cold and intact.

TPH-Extractables by GC (EPA 8015B):

JS-SW-D01 (lab # 292369-001), JS-SW-D02 (lab # 292369-002), and JS-BS-D01 (lab # 292369-003) were diluted due to the dark and viscous nature of the sample extracts. No other analytical problems were encountered.

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Detections Summary for 292369
Results for any subcontracted analyses are not included in this summary.

Client : SLR International
Project : 102.01422.00001
Location : Jean SWeeney
Client Sample ID : JS-SW-D01 Laboratory Sample ID : 292369-001 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 5.5 Y 2.0 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Diesel C10-C24 3.9 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 21 10 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Motor Oil C24-C36 13 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 51 10 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Bunker C C12-C40 33 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-SW-D02 Laboratory Sample ID : 292369-002 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 8.3 Y 2.0 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Diesel C10-C24 6.6 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 23 10 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Motor Oil C24-C36 17 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 59 10 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Bunker C C12-C40 45 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-D01 Laboratory Sample ID : 292369-003 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 36 Y 3.0 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Diesel C10-C24 27 Y 3.0 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Motor Oil C24-C36 200 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Motor Oil C24-C36 200 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Bunker C C12-C40 470 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Bunker C C12-C40 440 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-D02 Laboratory Sample ID : 292369-004 Analyte Result Flags RL Units Basis IDF Method Prep Method Bunker C C12-C40 6.4 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Y = Sample exhibits chromatographic pattern which does not resemble standard

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Total Extractable Hydrocarbons
Lab #: 292369 Location: Jean SWeeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Sampled: 09/13/17 Units: mg/Kg Received: 09/13/17 Basis: as received Prepared: 09/13/17 Batch#: 251603 Analyzed: 09/14/17 Field ID: JS-SW-D01 Lab ID: 292369-001 Type: SAMPLE Cleanup Method: EPA 3630C Analyte Result RL Diln Fac Diesel C10-C24 5.5 Y 2.0 2.000 Diesel C10-C24 (SGCU) 3.9 Y 1.0 1.000 Motor Oil C24-C36 21 10 2.000 Motor Oil C24-C36 (SGCU) 13 5.0 1.000 Bunker C C12-C40 51 10 2.000 Bunker C C12-C40 (SGCU) 33 5.0 1.000 Surrogate %REC Limits Diln Fac
o-Terphenyl 96 55-133 2.000
o-Terphenyl (SGCU) 72 55-133 1.000
Field ID: JS-SW-D02 Lab ID: 292369-002 Type: SAMPLE Cleanup Method: EPA 3630C Analyte Result RL Diln Fac Diesel C10-C24 8.3 Y 2.0 2.000 Diesel C10-C24 (SGCU) 6.6 Y 1.0 1.000 Motor Oil C24-C36 23 10 2.000 Motor Oil C24-C36 (SGCU) 17 5.0 1.000 Bunker C C12-C40 59 10 2.000 Bunker C C12-C40 (SGCU) 45 5.0 1.000 Surrogate %REC Limits Diln Fac
o-Terphenyl 90 55-133 2.000
o-Terphenyl (SGCU) 73 55-133 1.000
Field ID: JS-BS-D01 Diln Fac: 3.000 Type: SAMPLE Cleanup Method: EPA 3630C Lab ID: 292369-003
Analyte Result RL
Diesel C10-C24 36 Y 3.0 Diesel C10-C24 (SGCU) 27 Y 3.0 Motor Oil C24-C36 200 15 Motor Oil C24-C36 (SGCU) 200 15 Bunker C C12-C40 470 15 Bunker C C12-C40 (SGCU) 440 15 Surrogate %REC Limits
o-Terphenyl 102 55-133
o-Terphenyl (SGCU) 127 55-133
Y= Sample exhibits chromatographic pattern which does not resemble standard ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

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Total Extractable Hydrocarbons
Lab #: 292369 Location: Jean SWeeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Sampled: 09/13/17 Units: mg/Kg Received: 09/13/17 Basis: as received Prepared: 09/13/17 Batch#: 251603 Analyzed: 09/14/17 Field ID: JS-BS-D02 Diln Fac: 1.000 Type: SAMPLE Cleanup Method: EPA 3630C Lab ID: 292369-004
Analyte Result RL
Diesel C10-C24 ND 1.0 Diesel C10-C24 (SGCU) ND 1.0 Motor Oil C24-C36 ND 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 6.4 5.0 Bunker C C12-C40 (SGCU) ND 5.0 Surrogate %REC Limits
o-Terphenyl 106 55-133
o-Terphenyl (SGCU) 85 55-133
Type: BLANK Diln Fac: 1.000 Lab ID: QC900700 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 ND 1.0 Diesel C10-C24 (SGCU) ND 1.0 Motor Oil C24-C36 ND 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 ND 5.0 Bunker C C12-C40 (SGCU) ND 5.0 Surrogate %REC Limits
o-Terphenyl 108 55-133
o-Terphenyl (SGCU) 91 55-133
Y= Sample exhibits chromatographic pattern which does not resemble standard ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

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Batch QC Report
Total Extractable Hydrocarbons
Lab #: 292369 Location: Jean SWeeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Type: LCS Diln Fac: 1.000 Lab ID: QC900701 Batch#: 251603 Matrix: Soil Prepared: 09/13/17 Units: mg/Kg Analyzed: 09/14/17 Cleanup Method: EPA 3630C
Analyte Spiked Result %REC Limits Diesel C10-C24 49.86 51.97 104 51-137 Diesel C10-C24 (SGCU) 49.86 43.18 87 51-137 Surrogate %REC Limits
o-Terphenyl 109 55-133
o-Terphenyl (SGCU) 90 55-133
SGCU= Silica gel cleanup

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Batch QC Report
Total Extractable Hydrocarbons
Lab #: 292369 Location: Jean SWeeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Field ID: JS-SW-D01 Batch#: 251603 MSS Lab ID: 292369-001 Sampled: 09/13/17 Matrix: Soil Received: 09/13/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received Analyzed: 09/14/17 Diln Fac: 1.000
Type: MS Cleanup Method: EPA 3630C Lab ID: QC900702
Analyte MSS Result Spiked Result %REC Limits Diesel C10-C24 (SGCU) 3.877 50.11 41.75 76 36-143 Surrogate %REC Limits
o-Terphenyl (SGCU) 81 55-133
Type: MSD Cleanup Method: EPA 3630C Lab ID: QC900703
Analyte Spiked Result %REC Limits RPD Lim Diesel C10-C24 (SGCU) 50.21 39.43 71 36-143 6 55 Surrogate %REC Limits
o-Terphenyl (SGCU) 74 55-133
RPD= Relative Percent Difference
SGCU= Silica gel cleanup

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Laboratory Job Number 292437

ANALYTICAL REPORT
SLR International Project : 102.01422.00001 110 11th Street Location : Jean Sweeney Oakland, CA 94607 Level : II
Sample ID
Lab ID
JS-BS-A101 292437-001
JS-BS-B10 292437-002
JS-BS-B11 292437-003
JS-BS-B12 292437-004
JS-BS-B13 292437-005
JS-BS-B14 292437-006
JS-BS-B15 292437-007
JS-BS-B16 292437-008
JS-BS-B17 292437-009
JS-BS-A15 292437-010
JS-BS-A16 292437-011
JS-BS-A17 292437-012
JS-BS-A18 292437-013
JS-BS-A19 292437-014
JS-BS-A20 292437-015
JS-BS-A21 292437-016
JS-BS-A22 292437-017
JS-BS-A23 292437-018
JS-BS-A24 292437-019
This data package has been reviewed for technical correctness and completeness.

Signature:

Date: 09/18/2017
Patrick McCarthy
Project Manager
[email protected]
(510) 204-2236
CA ELAP# 2896, NELAP# 4044-001
1 of 14

CASE NARRATIVE
Laboratory number: 292437
Client: SLR International
Project: 102.01422.00001
Location: Jean Sweeney
Request Date: 09/14/17
Samples Received: 09/14/17
This data package contains sample and QC results for one soil sample, requested for the above referenced project on 09/14/17. The sample was received cold and intact.

TPH-Extractables by GC (EPA 8015B):

No analytical problems were encountered.

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5 of 14
Detections Summary for 292437
Results for any subcontracted analyses are not included in this summary.

Client : SLR International
Project : 102.01422.00001
Location : Jean Sweeney
Client Sample ID : JS-BS-A101 Laboratory Sample ID : 292437-001 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 3.7 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 2.3 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 20 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 11 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 56 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 32 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Y = Sample exhibits chromatographic pattern which does not resemble standard

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Total Extractable Hydrocarbons
Lab #: 292437 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Field ID: JS-BS-A101 Batch#: 251633 Matrix: Soil Sampled: 09/14/17 Units: mg/Kg Received: 09/14/17 Basis: as received Prepared: 09/14/17 Diln Fac: 1.000 Analyzed: 09/15/17 Type: SAMPLE Cleanup Method: EPA 3630C Lab ID: 292437-001
Analyte Result RL
Diesel C10-C24 3.7 Y 1.0 Diesel C10-C24 (SGCU) 2.3 Y 1.0 Motor Oil C24-C36 20 5.0 Motor Oil C24-C36 (SGCU) 11 5.0 Bunker C C12-C40 56 5.0 Bunker C C12-C40 (SGCU) 32 5.0 Surrogate %REC Limits
o-Terphenyl 99 55-133
o-Terphenyl (SGCU) 79 55-133
Type: BLANK Cleanup Method: EPA 3630C Lab ID: QC900824
Analyte Result RL
Diesel C10-C24 ND 1.0 Diesel C10-C24 (SGCU) ND 1.0 Motor Oil C24-C36 ND 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 ND 5.0 Bunker C C12-C40 (SGCU) ND 5.0 Surrogate %REC Limits
o-Terphenyl 97 55-133
o-Terphenyl (SGCU) 77 55-133
Y= Sample exhibits chromatographic pattern which does not resemble standard ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

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Batch QC Report
Total Extractable Hydrocarbons
Lab #: 292437 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Type: LCS Diln Fac: 1.000 Lab ID: QC900825 Batch#: 251633 Matrix: Soil Prepared: 09/14/17 Units: mg/Kg Analyzed: 09/15/17 Cleanup Method: EPA 3630C
Analyte Spiked Result %REC Limits Diesel C10-C24 49.79 48.96 98 51-137 Diesel C10-C24 (SGCU) 49.79 37.50 75 51-137 Surrogate %REC Limits
o-Terphenyl 97 55-133
o-Terphenyl (SGCU) 70 55-133
SGCU= Silica gel cleanup

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Batch QC Report
Total Extractable Hydrocarbons
Lab #: 292437 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Field ID: ZZZZZZZZZZ Batch#: 251633 MSS Lab ID: 292309-038 Sampled: 09/11/17 Matrix: Soil Received: 09/11/17 Units: mg/Kg Prepared: 09/14/17 Basis: as received Analyzed: 09/15/17 Diln Fac: 1.000
Type: MS Lab ID: QC900826 Analyte MSS Result Spiked Result %REC Limits Diesel C10-C24 0.9453 49.79 47.57 94 36-143 Surrogate %REC Limits
o-Terphenyl 103 55-133
Type: MSD Lab ID: QC900827 Analyte Spiked Result %REC Limits RPD Lim Diesel C10-C24 49.94 44.78 88 36-143 6 55 Surrogate %REC Limits
o-Terphenyl 96 55-133
RPD= Relative Percent Difference

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\\kraken\gdrive\ezchrom\Projects\GC27\Data\2017\258a004.dat, Front Signal 14 of 14

Laboratory Job Number 292490

ANALYTICAL REPORT
SLR International Project : JSOSP 110 11th Street Location : JSOSP Oakland, CA 94607 Level : II
Sample ID
Lab ID Sample ID Lab ID
JS-SW-L101 292490-001 JS-SW-L402 292490-017 JS-SW-L102 292490-002 JS-SW-L403 292490-018 JS-SW-L103 292490-003 JS-SW-L404 292490-019 JS-SW-L104 292490-004 JS-BS-L401 292490-020 JS-BS-L101 292490-005 JS-SW-L501 292490-021 JS-SW-L201 292490-006 JS-SW-L502 292490-022 JS-SW-L202 292490-007 JS-SW-L503 292490-023 JS-SW-L203 292490-008 JS-SW-L504 292490-024 JS-SW-L204 292490-009 JS-BS-L501 292490-025 JS-BS-L201 292490-010 ABN1-SW 292490-026 JS-SW-L301 292490-011 ABN1-BS 292490-027 JS-SW-L302 292490-012 ABN2-SW 292490-028 JS-SW-L303 292490-013 ABN2-BS 292490-029 JS-SW-L304 292490-014 ABN3-SW 292490-030 JS-BS-L301 292490-015 ABN3-BS 292490-031 JS-SW-L401 292490-016
This data package has been reviewed for technical correctness and completeness.

Signature:

Date: 09/18/2017
Patrick McCarthy
Project Manager
[email protected]
(510) 204-2236
CA ELAP# 2896, NELAP# 4044-001
1 of 11

CASE NARRATIVE
Laboratory number: 292490
Client: SLR International
Project: JSOSP
Location: JSOSP
Request Date: 09/15/17
Samples Received: 09/15/17
This data package contains sample and QC results for twenty five soil samples, requested for the above referenced project on 09/15/17. The samples were received cold and intact.

Metals (EPA 6010B):

No analytical problems were encountered.

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4 of 11
5 of 11
6 of 11
Detections Summary for 292490
Results for any subcontracted analyses are not included in this summary.

Client : SLR International
Project : JSOSP
Location : JSOSP
Client Sample ID : JS-SW-L101 Laboratory Sample ID : 292490-001 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 88 1.0 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L102 Laboratory Sample ID : 292490-002 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 27 1.0 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L103 Laboratory Sample ID : 292490-003 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 7.8 0.95 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L104 Laboratory Sample ID : 292490-004 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 2.7 1.0 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-BS-L101 Laboratory Sample ID : 292490-005 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 120 0.99 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L201 Laboratory Sample ID : 292490-006 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 7.4 1.0 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L202 Laboratory Sample ID : 292490-007 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 25 1.0 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B

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Client Sample ID : JS-SW-L203 Laboratory Sample ID : 292490-008 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 14 0.99 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L204 Laboratory Sample ID : 292490-009 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 43 1.0 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-BS-L201 Laboratory Sample ID : 292490-010 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 1,000 49 mg/Kg As Recd 100.0 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L301 Laboratory Sample ID : 292490-011 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 17 1.0 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L302 Laboratory Sample ID : 292490-012 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 14 1.0 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L303 Laboratory Sample ID : 292490-013 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 8.7 1.0 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L304 Laboratory Sample ID : 292490-014 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 8.2 0.93 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-BS-L301 Laboratory Sample ID : 292490-015 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 2.4 0.97 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L401 Laboratory Sample ID : 292490-016 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 7.0 1.0 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B

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Client Sample ID : JS-SW-L402 Laboratory Sample ID : 292490-017 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 7.1 0.98 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L403 Laboratory Sample ID : 292490-018 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 23 1.0 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L404 Laboratory Sample ID : 292490-019 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 4.5 0.96 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-BS-L401 Laboratory Sample ID : 292490-020 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 150 0.92 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L501 Laboratory Sample ID : 292490-021 No Detections
Client Sample ID : JS-SW-L502 Laboratory Sample ID : 292490-022 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 3.9 1.0 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L503 Laboratory Sample ID : 292490-023 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 5.5 1.0 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-SW-L504 Laboratory Sample ID : 292490-024 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 5.3 0.93 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B Client Sample ID : JS-BS-L501 Laboratory Sample ID : 292490-025 Analyte Result Flags RL Units Basis IDF Method Prep Method Lead 7.6 0.97 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B

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Lead
Lab #: 292490 Location: JSOSP Client: SLR International Prep: EPA 3050B Project#: JSOSP Analysis: EPA 6010B Analyte: Lead Sampled: 09/15/17 Matrix: Soil Received: 09/15/17 Units: mg/Kg Prepared: 09/18/17 Basis: as received Analyzed: 09/18/17 Field ID Type Lab ID Result RL Diln Fac Batch# JS-SW-L101 SAMPLE 292490-001 88 1.0 1.000 251729 JS-SW-L102 SAMPLE 292490-002 27 1.0 1.000 251729 JS-SW-L103 SAMPLE 292490-003 7.8 0.95 1.000 251729 JS-SW-L104 SAMPLE 292490-004 2.7 1.0 1.000 251729 JS-BS-L101 SAMPLE 292490-005 120 0.99 1.000 251729 JS-SW-L201 SAMPLE 292490-006 7.4 1.0 1.000 251729 JS-SW-L202 SAMPLE 292490-007 25 1.0 1.000 251729 JS-SW-L203 SAMPLE 292490-008 14 0.99 1.000 251729 JS-SW-L204 SAMPLE 292490-009 43 1.0 1.000 251729 JS-BS-L201 SAMPLE 292490-010 1,000 49 100.0 251729 JS-SW-L301 SAMPLE 292490-011 17 1.0 1.000 251730 JS-SW-L302 SAMPLE 292490-012 14 1.0 1.000 251730 JS-SW-L303 SAMPLE 292490-013 8.7 1.0 1.000 251730 JS-SW-L304 SAMPLE 292490-014 8.2 0.93 1.000 251730 JS-BS-L301 SAMPLE 292490-015 2.4 0.97 1.000 251730 JS-SW-L401 SAMPLE 292490-016 7.0 1.0 1.000 251730 JS-SW-L402 SAMPLE 292490-017 7.1 0.98 1.000 251730 JS-SW-L403 SAMPLE 292490-018 23 1.0 1.000 251730 JS-SW-L404 SAMPLE 292490-019 4.5 0.96 1.000 251730 JS-BS-L401 SAMPLE 292490-020 150 0.92 1.000 251730 JS-SW-L501 SAMPLE 292490-021 ND 1.0 1.000 251730 JS-SW-L502 SAMPLE 292490-022 3.9 1.0 1.000 251730 JS-SW-L503 SAMPLE 292490-023 5.5 1.0 1.000 251730 JS-SW-L504 SAMPLE 292490-024 5.3 0.93 1.000 251730 JS-BS-L501 SAMPLE 292490-025 7.6 0.97 1.000 251730 BLANK QC901197 ND 1.0 1.000 251729 BLANK QC901202 ND 1.0 1.000 251730 ND= Not Detected
RL= Reporting Limit

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Batch QC Report
Lead
Lab #: 292490 Location: JSOSP Client: SLR International Prep: EPA 3050B Project#: JSOSP Analysis: EPA 6010B Analyte: Lead Diln Fac: 1.000 Matrix: Soil Prepared: 09/18/17 Units: mg/Kg Analyzed: 09/18/17 Basis: as received
Field ID Type MSS Lab ID Lab ID MSS Result Spiked Result %REC Limits RPD Lim Batch# Sampled Received BS QC901198 51.02 53.19 104 80-120 251729 BSD QC901199 49.02 50.63 103 80-120 1 20 251729 ZZZZZZZZZZ MS 292261-023 QC901200 4.969 50.51 52.23 94 53-128 251729 08/17/17 08/18/17 ZZZZZZZZZZ MSD 292261-023 QC901201 50.00 48.63 87 53-128 6 48 251729 08/17/17 08/18/17 BS QC901203 51.02 54.13 106 80-120 251730 BSD QC901204 49.02 50.96 104 80-120 2 20 251730 JS-SW-L301 MS 292490-011 QC901205 17.31 52.63 65.79 92 53-128 251730 09/15/17 09/15/17 JS-SW-L301 MSD 292490-011 QC901206 52.63 71.00 102 53-128 8 48 251730 09/15/17 09/15/17 RPD= Relative Percent Difference

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Laboratory Job Number 292349

ANALYTICAL REPORT
SLR International Project : 102.01422.00001 110 11th Street Location : Jean Sweeney Oakland, CA 94607 Level : II
Sample ID
Lab ID Sample ID Lab ID
JS-SW-A02 292349-001 JS-BS-B01 292349-018 JS-SW-A03 292349-002 JS-BS-B02 292349-019 JS-SW-A04 292349-003 JS-BS-B03 292349-020 JS-BS-A06 292349-004 JS-BS-B04 292349-021 JS-BS-A07 292349-005 JS-BS-B05 292349-022 JS-BS-A08 292349-006 JS-BS-B06 292349-023 JS-BS-A09 292349-007 JS-BS-B07 292349-024 JS-BS-A10 292349-008 JS-BS-B08 292349-025 JS-BS-A11 292349-009 JS-BS-B09 292349-026 JS-BS-A12 292349-010 JS-SW-B01 292349-027 JS-BS-A13 292349-011 JS-SW-B02 292349-028 JS-BS-A14 292349-012 JS-SW-B03 292349-029 JS-BS-A13 DUP 292349-013 JS-SW-B04 292349-030 JS-SW-A05 292349-014 JS-SW-B05 292349-031 JS-SW-A06 292349-015 JS-SW-B06 292349-032 JS-SW-A08 292349-016 JS-SW-B07 292349-033 JS-SW-A07 292349-017
This data package has been reviewed for technical correctness and completeness.

Signature:

Date: 09/15/2017
Patrick McCarthy
Project Manager
[email protected]
(510) 204-2236
CA ELAP# 2896, NELAP# 4044-001
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CASE NARRATIVE
Laboratory number: 292349
Client: SLR International
Project: 102.01422.00001
Location: Jean Sweeney
Request Date: 09/12/17
Samples Received: 09/12/17
This data package contains sample and QC results for thirty three soil samples, requested for the above referenced project on 09/12/17. The samples were received cold and intact.

TPH-Extractables by GC (EPA 8015B):

High surrogate recovery was observed for o-terphenyl in JS-SW-B06 (lab # 292349-032); no target analytes were detected in the sample. Many samples were diluted due to the dark and viscous nature of the sample extracts. No other analytical problems were encountered.

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Detections Summary for 292349
Results for any subcontracted analyses are not included in this summary.

Client : SLR International
Project : 102.01422.00001
Location : Jean Sweeney
Client Sample ID : JS-SW-A02 Laboratory Sample ID : 292349-001 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 2.2 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 1.3 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 16 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 12 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 36 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 26 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-SW-A03 Laboratory Sample ID : 292349-002 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 33 Y 3.0 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Diesel C10-C24 19 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 170 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Motor Oil C24-C36 86 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 390 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Bunker C C12-C40 210 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-SW-A04 Laboratory Sample ID : 292349-003 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 10 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 7.4 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 29 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 19 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 69 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 49 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-A06 Laboratory Sample ID : 292349-004 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 24 Y 0.99 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 15 Y 0.99 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 91 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 53 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 210 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 130 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C

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Client Sample ID : JS-BS-A07 Laboratory Sample ID : 292349-005 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 27 Y 2.0 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Diesel C10-C24 16 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 100 10 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Motor Oil C24-C36 55 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 240 10 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Bunker C C12-C40 130 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-A08 Laboratory Sample ID : 292349-006 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 130 Y 3.0 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Diesel C10-C24 77 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 230 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Motor Oil C24-C36 120 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 660 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Bunker C C12-C40 370 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-A09 Laboratory Sample ID : 292349-007 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 36 Y 2.0 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Diesel C10-C24 27 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 120 10 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Motor Oil C24-C36 80 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 300 10 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Bunker C C12-C40 200 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-A10 Laboratory Sample ID : 292349-008 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 96 Y 10 mg/Kg As Recd 10.00 EPA 8015B EPA 3550C Diesel C10-C24 72 Y 3.0 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Motor Oil C24-C36 660 50 mg/Kg As Recd 10.00 EPA 8015B EPA 3550C Motor Oil C24-C36 420 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Bunker C C12-C40 1,500 50 mg/Kg As Recd 10.00 EPA 8015B EPA 3550C Bunker C C12-C40 930 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C

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Client Sample ID : JS-BS-A11 Laboratory Sample ID : 292349-009 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 12 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 7.6 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 51 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 33 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 120 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 76 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-A12 Laboratory Sample ID : 292349-010 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 12 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 7.1 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 55 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 34 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 120 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 75 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-A13 Laboratory Sample ID : 292349-011 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 12 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 6.1 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 50 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 31 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 120 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 69 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-A14 Laboratory Sample ID : 292349-012 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 20 Y 2.0 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Diesel C10-C24 9.2 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 81 10 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Motor Oil C24-C36 39 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 200 10 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Bunker C C12-C40 95 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C

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Client Sample ID : JS-BS-A13 DUP Laboratory Sample ID : 292349-013 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 11 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 8.3 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 45 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 34 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 110 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 80 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-SW-A05 Laboratory Sample ID : 292349-014 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 7.3 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 6.1 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 5.3 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 25 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 19 Y 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-SW-A06 Laboratory Sample ID : 292349-015 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 14 Y 2.0 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Diesel C10-C24 12 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 60 10 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Motor Oil C24-C36 46 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 140 10 mg/Kg As Recd 2.000 EPA 8015B EPA 3550C Bunker C C12-C40 110 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-SW-A08 Laboratory Sample ID : 292349-016 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 8.4 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 6.2 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 44 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 32 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 100 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 74 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-SW-A07 Laboratory Sample ID : 292349-017 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 13 Y 0.99 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 9.4 Y 0.99 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 52 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 39 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 120 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 90 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C

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Client Sample ID : JS-BS-B01 Laboratory Sample ID : 292349-018 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 15 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 8.2 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 37 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 21 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 99 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 41 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-B02 Laboratory Sample ID : 292349-019 No Detections
Client Sample ID : JS-BS-B03 Laboratory Sample ID : 292349-020 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 2.0 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 6.0 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 5.2 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-B04 Laboratory Sample ID : 292349-021 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 6.9 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 5.0 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 14 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 9.6 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 33 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 28 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-BS-B05 Laboratory Sample ID : 292349-022 No Detections
Client Sample ID : JS-BS-B06 Laboratory Sample ID : 292349-023 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 1.7 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 7.2 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 14 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 10 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C

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Client Sample ID : JS-BS-B07 Laboratory Sample ID : 292349-024 No Detections
Client Sample ID : JS-BS-B08 Laboratory Sample ID : 292349-025 No Detections
Client Sample ID : JS-BS-B09 Laboratory Sample ID : 292349-026 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 160 Z 5.0 mg/Kg As Recd 5.000 EPA 8015B EPA 3550C Diesel C10-C24 94 Y 9.9 mg/Kg As Recd 10.00 EPA 8015B EPA 3550C Motor Oil C24-C36 760 25 mg/Kg As Recd 5.000 EPA 8015B EPA 3550C Motor Oil C24-C36 480 50 mg/Kg As Recd 10.00 EPA 8015B EPA 3550C Bunker C C12-C40 1,500 Z 25 mg/Kg As Recd 5.000 EPA 8015B EPA 3550C Bunker C C12-C40 1,200 50 mg/Kg As Recd 10.00 EPA 8015B EPA 3550C Client Sample ID : JS-SW-B01 Laboratory Sample ID : 292349-027 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 14 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Diesel C10-C24 6.8 Y 1.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 69 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Motor Oil C24-C36 38 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 130 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 87 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Client Sample ID : JS-SW-B02 Laboratory Sample ID : 292349-028 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 130 Y 3.0 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Diesel C10-C24 130 Y 3.0 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Motor Oil C24-C36 500 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Motor Oil C24-C36 410 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Bunker C C12-C40 980 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Bunker C C12-C40 1,000 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Client Sample ID : JS-SW-B03 Laboratory Sample ID : 292349-029 Analyte Result Flags RL Units Basis IDF Method Prep Method Bunker C C12-C40 7.1 Y 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C Bunker C C12-C40 8.6 Y 5.0 mg/Kg As Recd 1.000 EPA 8015B EPA 3550C

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Client Sample ID : JS-SW-B04 Laboratory Sample ID : 292349-030 No Detections
Client Sample ID : JS-SW-B05 Laboratory Sample ID : 292349-031 No Detections
Client Sample ID : JS-SW-B06 Laboratory Sample ID : 292349-032 No Detections
Client Sample ID : JS-SW-B07 Laboratory Sample ID : 292349-033 Analyte Result Flags RL Units Basis IDF Method Prep Method Diesel C10-C24 230 Y 3.0 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Diesel C10-C24 150 Y 3.0 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Motor Oil C24-C36 370 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Motor Oil C24-C36 280 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Bunker C C12-C40 850 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Bunker C C12-C40 780 15 mg/Kg As Recd 3.000 EPA 8015B EPA 3550C Y = Sample exhibits chromatographic pattern which does not resemble standard Z = Sample exhibits unknown single peak or peaks

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Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-SW-A02 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-001 Cleanup Method: EPA 3630C Diln Fac: 1.000
Analyte Result RL Analyzed Diesel C10-C24 2.2 Y 1.0 09/13/17 Diesel C10-C24 (SGCU) 1.3 Y 1.0 09/14/17 Motor Oil C24-C36 16 5.0 09/13/17 Motor Oil C24-C36 (SGCU) 12 5.0 09/14/17 Bunker C C12-C40 36 5.0 09/13/17 Bunker C C12-C40 (SGCU) 26 5.0 09/14/17 Surrogate %REC Limits Analyzed
o-Terphenyl 103 55-133 09/13/17
o-Terphenyl (SGCU) 85 55-133 09/14/17
Field ID: JS-SW-A03 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-002 Cleanup Method: EPA 3630C Analyte Result RL Diln Fac Analyzed Diesel C10-C24 33 Y 3.0 3.000 09/13/17 Diesel C10-C24 (SGCU) 19 Y 1.0 1.000 09/14/17 Motor Oil C24-C36 170 15 3.000 09/13/17 Motor Oil C24-C36 (SGCU) 86 5.0 1.000 09/14/17 Bunker C C12-C40 390 15 3.000 09/13/17 Bunker C C12-C40 (SGCU) 210 5.0 1.000 09/14/17 Surrogate %REC Limits Diln Fac Analyzed o-Terphenyl 93 55-133 3.000 09/13/17 o-Terphenyl (SGCU) 73 55-133 1.000 09/14/17 *= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 1 of 18 ends

14 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-SW-A04 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-003 Cleanup Method: EPA 3630C Diln Fac: 1.000
Analyte Result RL Analyzed Diesel C10-C24 10 Y 1.0 09/13/17 Diesel C10-C24 (SGCU) 7.4 Y 1.0 09/14/17 Motor Oil C24-C36 29 5.0 09/13/17 Motor Oil C24-C36 (SGCU) 19 5.0 09/14/17 Bunker C C12-C40 69 5.0 09/13/17 Bunker C C12-C40 (SGCU) 49 5.0 09/14/17 Surrogate %REC Limits Analyzed
o-Terphenyl 104 55-133 09/13/17
o-Terphenyl (SGCU) 102 55-133 09/14/17
Field ID: JS-BS-A06 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-004 Cleanup Method: EPA 3630C Diln Fac: 1.000
Analyte Result RL Analyzed Diesel C10-C24 24 Y 0.99 09/13/17 Diesel C10-C24 (SGCU) 15 Y 0.99 09/14/17 Motor Oil C24-C36 91 5.0 09/13/17 Motor Oil C24-C36 (SGCU) 53 5.0 09/14/17 Bunker C C12-C40 210 5.0 09/13/17 Bunker C C12-C40 (SGCU) 130 5.0 09/14/17 Surrogate %REC Limits Analyzed
o-Terphenyl 100 55-133 09/13/17
o-Terphenyl (SGCU) 78 55-133 09/14/17
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 2 of 18 ends

15 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-BS-A07 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-005 Cleanup Method: EPA 3630C Analyte Result RL Diln Fac Analyzed Diesel C10-C24 27 Y 2.0 2.000 09/13/17 Diesel C10-C24 (SGCU) 16 Y 1.0 1.000 09/14/17 Motor Oil C24-C36 100 10 2.000 09/13/17 Motor Oil C24-C36 (SGCU) 55 5.0 1.000 09/14/17 Bunker C C12-C40 240 10 2.000 09/13/17 Bunker C C12-C40 (SGCU) 130 5.0 1.000 09/14/17 Surrogate %REC Limits Diln Fac Analyzed o-Terphenyl 107 55-133 2.000 09/13/17 o-Terphenyl (SGCU) 89 55-133 1.000 09/14/17 Field ID: JS-BS-A08 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-006 Cleanup Method: EPA 3630C Analyte Result RL Diln Fac Analyzed Diesel C10-C24 130 Y 3.0 3.000 09/13/17 Diesel C10-C24 (SGCU) 77 Y 1.0 1.000 09/14/17 Motor Oil C24-C36 230 15 3.000 09/13/17 Motor Oil C24-C36 (SGCU) 120 5.0 1.000 09/14/17 Bunker C C12-C40 660 15 3.000 09/13/17 Bunker C C12-C40 (SGCU) 370 5.0 1.000 09/14/17 Surrogate %REC Limits Diln Fac Analyzed o-Terphenyl 110 55-133 3.000 09/13/17 o-Terphenyl (SGCU) 87 55-133 1.000 09/14/17 *= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 3 of 18 ends

16 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-BS-A09 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-007 Cleanup Method: EPA 3630C Analyte Result RL Diln Fac Analyzed Diesel C10-C24 36 Y 2.0 2.000 09/13/17 Diesel C10-C24 (SGCU) 27 Y 1.0 1.000 09/14/17 Motor Oil C24-C36 120 10 2.000 09/13/17 Motor Oil C24-C36 (SGCU) 80 5.0 1.000 09/14/17 Bunker C C12-C40 300 10 2.000 09/13/17 Bunker C C12-C40 (SGCU) 200 5.0 1.000 09/14/17 Surrogate %REC Limits Diln Fac Analyzed o-Terphenyl 110 55-133 2.000 09/13/17 o-Terphenyl (SGCU) 93 55-133 1.000 09/14/17 Field ID: JS-BS-A10 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-008 Cleanup Method: EPA 3630C Analyte Result RL Diln Fac Analyzed Diesel C10-C24 96 Y 10 10.00 09/13/17 Diesel C10-C24 (SGCU) 72 Y 3.0 3.000 09/14/17 Motor Oil C24-C36 660 50 10.00 09/13/17 Motor Oil C24-C36 (SGCU) 420 15 3.000 09/14/17 Bunker C C12-C40 1,500 50 10.00 09/13/17 Bunker C C12-C40 (SGCU) 930 15 3.000 09/14/17 Surrogate %REC Limits Diln Fac Analyzed o-Terphenyl DO 55-133 10.00 09/13/17 o-Terphenyl (SGCU) 92 55-133 3.000 09/14/17 *= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 4 of 18 ends

17 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-BS-A11 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-009 Cleanup Method: EPA 3630C Diln Fac: 1.000
Analyte Result RL Analyzed Diesel C10-C24 12 Y 1.0 09/13/17 Diesel C10-C24 (SGCU) 7.6 Y 1.0 09/14/17 Motor Oil C24-C36 51 5.0 09/13/17 Motor Oil C24-C36 (SGCU) 33 5.0 09/14/17 Bunker C C12-C40 120 5.0 09/13/17 Bunker C C12-C40 (SGCU) 76 5.0 09/14/17 Surrogate %REC Limits Analyzed
o-Terphenyl 101 55-133 09/13/17
o-Terphenyl (SGCU) 87 55-133 09/14/17
Field ID: JS-BS-A12 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-010 Cleanup Method: EPA 3630C Diln Fac: 1.000
Analyte Result RL Analyzed Diesel C10-C24 12 Y 1.0 09/13/17 Diesel C10-C24 (SGCU) 7.1 Y 1.0 09/14/17 Motor Oil C24-C36 55 5.0 09/13/17 Motor Oil C24-C36 (SGCU) 34 5.0 09/14/17 Bunker C C12-C40 120 5.0 09/13/17 Bunker C C12-C40 (SGCU) 75 5.0 09/14/17 Surrogate %REC Limits Analyzed
o-Terphenyl 106 55-133 09/13/17
o-Terphenyl (SGCU) 83 55-133 09/14/17
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 5 of 18 ends

18 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-BS-A13 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-011 Cleanup Method: EPA 3630C Diln Fac: 1.000
Analyte Result RL Analyzed Diesel C10-C24 12 Y 1.0 09/13/17 Diesel C10-C24 (SGCU) 6.1 Y 1.0 09/14/17 Motor Oil C24-C36 50 5.0 09/13/17 Motor Oil C24-C36 (SGCU) 31 5.0 09/14/17 Bunker C C12-C40 120 5.0 09/13/17 Bunker C C12-C40 (SGCU) 69 5.0 09/14/17 Surrogate %REC Limits Analyzed
o-Terphenyl 99 55-133 09/13/17
o-Terphenyl (SGCU) 82 55-133 09/14/17
Field ID: JS-BS-A14 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-012 Cleanup Method: EPA 3630C Analyte Result RL Diln Fac Analyzed Diesel C10-C24 20 Y 2.0 2.000 09/13/17 Diesel C10-C24 (SGCU) 9.2 Y 1.0 1.000 09/14/17 Motor Oil C24-C36 81 10 2.000 09/13/17 Motor Oil C24-C36 (SGCU) 39 5.0 1.000 09/14/17 Bunker C C12-C40 200 10 2.000 09/13/17 Bunker C C12-C40 (SGCU) 95 5.0 1.000 09/14/17 Surrogate %REC Limits Diln Fac Analyzed o-Terphenyl 98 55-133 2.000 09/13/17 o-Terphenyl (SGCU) 64 55-133 1.000 09/14/17 *= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 6 of 18 ends

19 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-BS-A13 DUP Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-013 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 11 Y 1.0 Diesel C10-C24 (SGCU) 8.3 Y 1.0 Motor Oil C24-C36 45 5.0 Motor Oil C24-C36 (SGCU) 34 5.0 Bunker C C12-C40 110 5.0 Bunker C C12-C40 (SGCU) 80 5.0 Surrogate %REC Limits
o-Terphenyl 101 55-133
o-Terphenyl (SGCU) 82 55-133
Field ID: JS-SW-A05 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-014 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 7.3 Y 1.0 Diesel C10-C24 (SGCU) 6.1 Y 1.0 Motor Oil C24-C36 5.3 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 25 5.0 Bunker C C12-C40 (SGCU) 19 Y 5.0 Surrogate %REC Limits
o-Terphenyl 100 55-133
o-Terphenyl (SGCU) 82 55-133
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 7 of 18 ends

20 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-SW-A06 Sampled: 09/11/17 Type: SAMPLE Analyzed: 09/14/17 Lab ID: 292349-015 Cleanup Method: EPA 3630C Batch#: 251594
Analyte Result RL Diln Fac Diesel C10-C24 14 Y 2.0 2.000 Diesel C10-C24 (SGCU) 12 Y 1.0 1.000 Motor Oil C24-C36 60 10 2.000 Motor Oil C24-C36 (SGCU) 46 5.0 1.000 Bunker C C12-C40 140 10 2.000 Bunker C C12-C40 (SGCU) 110 5.0 1.000 Surrogate %REC Limits Diln Fac
o-Terphenyl 107 55-133 2.000
o-Terphenyl (SGCU) 94 55-133 1.000
Field ID: JS-SW-A08 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-016 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 8.4 Y 1.0 Diesel C10-C24 (SGCU) 6.2 Y 1.0 Motor Oil C24-C36 44 5.0 Motor Oil C24-C36 (SGCU) 32 5.0 Bunker C C12-C40 100 5.0 Bunker C C12-C40 (SGCU) 74 5.0 Surrogate %REC Limits
o-Terphenyl 107 55-133
o-Terphenyl (SGCU) 88 55-133
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 8 of 18 ends

21 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-SW-A07 Batch#: 251594 Type: SAMPLE Sampled: 09/11/17 Lab ID: 292349-017 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 13 Y 0.99 Diesel C10-C24 (SGCU) 9.4 Y 0.99 Motor Oil C24-C36 52 5.0 Motor Oil C24-C36 (SGCU) 39 5.0 Bunker C C12-C40 120 5.0 Bunker C C12-C40 (SGCU) 90 5.0 Surrogate %REC Limits
o-Terphenyl 105 55-133
o-Terphenyl (SGCU) 90 55-133
Field ID: JS-BS-B01 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-018 Cleanup Method: EPA 3630C Diln Fac: 1.000
Analyte Result RL Analyzed Diesel C10-C24 15 Y 1.0 09/14/17 Diesel C10-C24 (SGCU) 8.2 Y 1.0 09/15/17 Motor Oil C24-C36 37 5.0 09/14/17 Motor Oil C24-C36 (SGCU) 21 5.0 09/15/17 Bunker C C12-C40 99 5.0 09/14/17 Bunker C C12-C40 (SGCU) 41 5.0 09/14/17 Surrogate %REC Limits Analyzed
o-Terphenyl 108 55-133 09/14/17
o-Terphenyl (SGCU) 67 55-133 09/15/17
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 9 of 18 ends

22 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-BS-B02 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-019 Cleanup Method: EPA 3630C Diln Fac: 1.000
Analyte Result RL Analyzed Diesel C10-C24 ND 1.0 09/14/17 Diesel C10-C24 (SGCU) ND 1.0 09/15/17 Motor Oil C24-C36 ND 5.0 09/14/17 Motor Oil C24-C36 (SGCU) ND 5.0 09/15/17 Bunker C C12-C40 ND 5.0 09/14/17 Bunker C C12-C40 (SGCU) ND 5.0 09/15/17 Surrogate %REC Limits Analyzed
o-Terphenyl 97 55-133 09/14/17
o-Terphenyl (SGCU) 71 55-133 09/15/17
Field ID: JS-BS-B03 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-020 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 2.0 Y 1.0 Diesel C10-C24 (SGCU) ND 1.0 Motor Oil C24-C36 ND 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 6.0 5.0 Bunker C C12-C40 (SGCU) 5.2 5.0 Surrogate %REC Limits
o-Terphenyl 97 55-133
o-Terphenyl (SGCU) 73 55-133
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 10 of 18 ends

23 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-BS-B04 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-021 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 6.9 Y 1.0 Diesel C10-C24 (SGCU) 5.0 Y 1.0 Motor Oil C24-C36 14 5.0 Motor Oil C24-C36 (SGCU) 9.6 5.0 Bunker C C12-C40 33 5.0 Bunker C C12-C40 (SGCU) 28 5.0 Surrogate %REC Limits
o-Terphenyl 111 55-133
o-Terphenyl (SGCU) 69 55-133
Field ID: JS-BS-B05 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-022 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 ND 1.0 Diesel C10-C24 (SGCU) ND 1.0 Motor Oil C24-C36 ND 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 ND 5.0 Bunker C C12-C40 (SGCU) ND 5.0 Surrogate %REC Limits
o-Terphenyl 111 55-133
o-Terphenyl (SGCU) 56 55-133
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 11 of 18 ends

24 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-BS-B06 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-023 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 1.7 Y 1.0 Diesel C10-C24 (SGCU) ND 1.0 Motor Oil C24-C36 7.2 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 14 5.0 Bunker C C12-C40 (SGCU) 10 5.0 Surrogate %REC Limits
o-Terphenyl 117 55-133
o-Terphenyl (SGCU) 73 55-133
Field ID: JS-BS-B07 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-024 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 ND 1.0 Diesel C10-C24 (SGCU) ND 1.0 Motor Oil C24-C36 ND 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 ND 5.0 Bunker C C12-C40 (SGCU) ND 5.0 Surrogate %REC Limits
o-Terphenyl 111 55-133
o-Terphenyl (SGCU) 67 55-133
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 12 of 18 ends

25 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-BS-B08 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-025 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 ND 0.99 Diesel C10-C24 (SGCU) ND 0.99 Motor Oil C24-C36 ND 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 ND 5.0 Bunker C C12-C40 (SGCU) ND 5.0 Surrogate %REC Limits
o-Terphenyl 115 55-133
o-Terphenyl (SGCU) 77 55-133
Field ID: JS-BS-B09 Sampled: 09/12/17 Type: SAMPLE Analyzed: 09/14/17 Lab ID: 292349-026 Cleanup Method: EPA 3630C Batch#: 251597
Analyte Result RL Diln Fac Diesel C10-C24 160 Z 5.0 5.000 Diesel C10-C24 (SGCU) 94 Y 9.9 10.00 Motor Oil C24-C36 760 25 5.000 Motor Oil C24-C36 (SGCU) 480 50 10.00 Bunker C C12-C40 1,500 Z 25 5.000 Bunker C C12-C40 (SGCU) 1,200 50 10.00 Surrogate %REC Limits Diln Fac
o-Terphenyl 98 55-133 5.000
o-Terphenyl (SGCU) DO 55-133 10.00
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 13 of 18 ends

26 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-SW-B01 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-027 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 14 Y 1.0 Diesel C10-C24 (SGCU) 6.8 Y 1.0 Motor Oil C24-C36 69 5.0 Motor Oil C24-C36 (SGCU) 38 5.0 Bunker C C12-C40 130 5.0 Bunker C C12-C40 (SGCU) 87 5.0 Surrogate %REC Limits
o-Terphenyl 123 55-133
o-Terphenyl (SGCU) 79 55-133
Field ID: JS-SW-B02 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-028 Cleanup Method: EPA 3630C Diln Fac: 3.000
Analyte Result RL Analyzed Diesel C10-C24 130 Y 3.0 09/14/17 Diesel C10-C24 (SGCU) 130 Y 3.0 09/15/17 Motor Oil C24-C36 500 15 09/14/17 Motor Oil C24-C36 (SGCU) 410 15 09/15/17 Bunker C C12-C40 980 15 09/14/17 Bunker C C12-C40 (SGCU) 1,000 15 09/15/17 Surrogate %REC Limits Analyzed
o-Terphenyl 66 55-133 09/14/17
o-Terphenyl (SGCU) 72 55-133 09/15/17
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

Page 14 of 18 ends

27 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-SW-B03 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-029 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 ND 1.0 Diesel C10-C24 (SGCU) ND 1.0 Motor Oil C24-C36 ND 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 7.1 Y 5.0 Bunker C C12-C40 (SGCU) 8.6 Y 5.0 Surrogate %REC Limits
o-Terphenyl 122 55-133
o-Terphenyl (SGCU) 89 55-133
Field ID: JS-SW-B04 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-030 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 ND 1.0 Diesel C10-C24 (SGCU) ND 1.0 Motor Oil C24-C36 ND 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 ND 5.0 Bunker C C12-C40 (SGCU) ND 5.0 Surrogate %REC Limits
o-Terphenyl 131 55-133
o-Terphenyl (SGCU) 85 55-133
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

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28 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-SW-B05 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-031 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 ND 1.0 Diesel C10-C24 (SGCU) ND 1.0 Motor Oil C24-C36 ND 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 ND 5.0 Bunker C C12-C40 (SGCU) ND 5.0 Surrogate %REC Limits
o-Terphenyl 117 55-133
o-Terphenyl (SGCU) 76 55-133
Field ID: JS-SW-B06 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-032 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 ND 1.0 Diesel C10-C24 (SGCU) ND 1.0 Motor Oil C24-C36 ND 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 ND 5.0 Bunker C C12-C40 (SGCU) ND 5.0 Surrogate %REC Limits
o-Terphenyl 134 * 55-133
o-Terphenyl (SGCU) 65 55-133
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

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29 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Field ID: JS-SW-B07 Batch#: 251597 Type: SAMPLE Sampled: 09/12/17 Lab ID: 292349-033 Analyzed: 09/14/17 Diln Fac: 3.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 230 Y 3.0 Diesel C10-C24 (SGCU) 150 Y 3.0 Motor Oil C24-C36 370 15 Motor Oil C24-C36 (SGCU) 280 15 Bunker C C12-C40 850 15 Bunker C C12-C40 (SGCU) 780 15 Surrogate %REC Limits
o-Terphenyl 113 55-133
o-Terphenyl (SGCU) 100 55-133
Type: BLANK Batch#: 251594 Lab ID: QC900655 Cleanup Method: EPA 3630C Diln Fac: 1.000
Analyte Result RL Analyzed Diesel C10-C24 ND 1.0 09/13/17 Diesel C10-C24 (SGCU) ND 1.0 09/14/17 Motor Oil C24-C36 ND 5.0 09/13/17 Motor Oil C24-C36 (SGCU) ND 5.0 09/14/17 Bunker C C12-C40 ND 5.0 09/13/17 Bunker C C12-C40 (SGCU) ND 5.0 09/14/17 Surrogate %REC Limits Analyzed
o-Terphenyl 112 55-133 09/13/17
o-Terphenyl (SGCU) 93 55-133 09/14/17
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

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30 of 91
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Matrix: Soil Received: 09/12/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received
Type: BLANK Batch#: 251597 Lab ID: QC900673 Analyzed: 09/14/17 Diln Fac: 1.000 Cleanup Method: EPA 3630C Analyte Result RL
Diesel C10-C24 ND 1.0 Diesel C10-C24 (SGCU) ND 1.0 Motor Oil C24-C36 ND 5.0 Motor Oil C24-C36 (SGCU) ND 5.0 Bunker C C12-C40 ND 5.0 Bunker C C12-C40 (SGCU) ND 5.0 Surrogate %REC Limits
o-Terphenyl 108 55-133
o-Terphenyl (SGCU) 66 55-133
*= Value outside of QC limits; see narrative
Y= Sample exhibits chromatographic pattern which does not resemble standard Z= Sample exhibits unknown single peak or peaks
DO= Diluted Out
ND= Not Detected
RL= Reporting Limit
SGCU= Silica gel cleanup

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31 of 91
Batch QC Report
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Type: LCS Diln Fac: 1.000 Lab ID: QC900656 Batch#: 251594 Matrix: Soil Prepared: 09/13/17 Units: mg/Kg
Cleanup Method: EPA 3630C
Analyte Spiked Result %REC Limits Analyzed Diesel C10-C24 49.54 56.24 114 51-137 09/13/17 Diesel C10-C24 (SGCU) 49.54 48.17 97 51-137 09/14/17 Surrogate %REC Limits Analyzed
o-Terphenyl 119 55-133 09/13/17
o-Terphenyl (SGCU) 101 55-133 09/14/17
SGCU= Silica gel cleanup

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32 of 91
Batch QC Report
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Field ID: ZZZZZZZZZZ Batch#: 251594 MSS Lab ID: 292275-001 Sampled: 09/08/17 Matrix: Soil Received: 09/08/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received Analyzed: 09/13/17 Diln Fac: 1.000
Type: MS Lab ID: QC900657 Analyte MSS Result Spiked Result %REC Limits Diesel C10-C24 9.593 50.13 49.56 80 36-143 Surrogate %REC Limits
o-Terphenyl 96 55-133
Type: MSD Lab ID: QC900658 Analyte Spiked Result %REC Limits RPD Lim Diesel C10-C24 50.18 43.08 67 36-143 14 55 Surrogate %REC Limits
o-Terphenyl 96 55-133
RPD= Relative Percent Difference

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33 of 91
Batch QC Report
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Type: LCS Diln Fac: 1.000 Lab ID: QC900674 Batch#: 251597 Matrix: Soil Prepared: 09/13/17 Units: mg/Kg Analyzed: 09/14/17 Cleanup Method: EPA 3630C
Analyte Spiked Result %REC Limits Diesel C10-C24 50.03 60.54 121 51-137 Diesel C10-C24 (SGCU) 50.03 37.37 75 51-137 Surrogate %REC Limits
o-Terphenyl 108 55-133
o-Terphenyl (SGCU) 64 55-133
SGCU= Silica gel cleanup

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34 of 91
Batch QC Report
Total Extractable Hydrocarbons
Lab #: 292349 Location: Jean Sweeney Client: SLR International Prep: EPA 3550C Project#: 102.01422.00001 Analysis: EPA 8015B Field ID: ZZZZZZZZZZ Batch#: 251597 MSS Lab ID: 292274-014 Sampled: 09/08/17 Matrix: Soil Received: 09/08/17 Units: mg/Kg Prepared: 09/13/17 Basis: as received Analyzed: 09/14/17 Diln Fac: 3.000
Type: MS Lab ID: QC900675 Analyte MSS Result Spiked Result %REC Limits Diesel C10-C24 48.99 50.29 111.4 124 36-143 Surrogate %REC Limits
o-Terphenyl 107 55-133
Type: MSD Lab ID: QC900676 Analyte Spiked Result %REC Limits RPD Lim Diesel C10-C24 49.70 110.1 123 36-143 1 55 Surrogate %REC Limits
o-Terphenyl 111 55-133
RPD= Relative Percent Difference

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\\kraken\gdrive\ezchrom\Projects\GC27\Data\2017\255a133.dat, Front Signal 75 of 91
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Laboratory Job Number 292698

ANALYTICAL REPORT
SLR International Project : 102.01422.00001 110 11th Street Location : Jean Sweeney Oakland, CA 94607 Level : II
Sample ID
Lab ID
JS-BS-B11 292698-001
JS-BS-B13 292698-002
JS-BS-B15 292698-003
This data package has been reviewed for technical correctness and completeness.

Release of this data has been authorized by the Laboratory Manager or the Manager's designee, as verified by the following signature. The results contained in this report meet all requirements of NELAP and pertain only to those samples which were submitted for analysis. This report may be reproduced only in its entirety.

Signature:

Date: 09/25/2017
Patrick McCarthy
Project Manager
[email protected]
(510) 204-2236
CA ELAP# 2896, NELAP# 4044-001
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CASE NARRATIVE
Laboratory number: 292698
Client: SLR International
Project: 102.01422.00001
Location: Jean Sweeney
Request Date: 09/21/17
Samples Received: 09/14/17
This data package contains sample and QC results for three soil samples, requested for the above referenced project on 09/21/17. The samples were received cold and intact.

TPH-Extractables by GC (EPA 8015B):

No analytical problems were encountered.

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