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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C a m p b e I l Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" I <br /> http://www.mccampbell.com/E-mail:main@mccampbell.com <br /> Analytical Report <br /> Client: Trans Tech Consultants WorkOrder: 2510767 <br /> Date Received: 10/09/2025 14:00 Extraction Method: SW3550 B <br /> Date Prepared: 10/09/2025 Analytical Method: SW8015 B <br /> Project: 3439.01;LLNL B882 Unit: mg/Kg <br /> Total Extractable Petroleum Hydrocarbons W/out SG Clean-Up <br /> Client ID Lab ID Matrix Date Collected Instrument Batch ID <br /> D-1-W-10.0' 2510767-001A Soil 10/09/202512:30 GC31A 10092558.D 327516 <br /> Anal es Result RL DF Date Analyzed <br /> TPH-Diesel(C10-C23) 2.0 2.0 1 10/10/2025 03:07 <br /> Surrogates REC % Limits DF <br /> C9 119 69-160 1 10/10/2025 03:07 <br /> Anal st s : JNG Analytical Comments: e2 <br /> Client ID Lab ID Matrix Date Collected Instrument Batch ID <br /> D-1-E-10.0' 2510767-002A Soil 10/091202512:26 GC9a 10092554.D 327516 <br /> Anal es Result RL DF Date Analyzed <br /> TPH-Diesel(C10-C23) ND 2.0 1 10/10/2025 01:53 <br /> Surrogates REC(%) Limits DF <br /> C9 103 69-160 1 10/10/2025 01:53 <br /> Analyst(s): JNG <br /> Client ID Lab ID Matrix Date Collected Instrument Batch ID <br /> L-1-2.0' 2510767-003A Soil 10/09/202512:20 GC9a 10092556.D 327516 <br /> Anal es Result RL DF Date Analyzed <br /> TPH-Diesel(C10-C23) ND 2.0 1 10/10/2025 02:31 <br /> Surrogates REC-(!/.) Limits DF <br /> C9 96 69-160 1 10/10/2025 02:31 <br /> Anal st s : JNG <br /> CA ELAP 1644 •ORELAP(NELAP)4033 <br /> Page 4 of 10 <br />