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CASTLE ANALYTICAL LABORATORY 01/16/23 <br />PCB SUMMARY REPORT <br />PG&E - STOCKTON CASTLE ANALYTICAL LABORATORY <br />4040 WEST LANE 2333 SHUTTLE DRIVE <br />STOCKTON, CA 95204 ATWATER, CA 95301 <br />ATTN: ALEX STEELE / DAVE LARSEN LAB DIRECTOR - CLARI J. CONE <br />DATE RCVD: 01/16/23 LICENSE:CA ELAP 2480 <br />LAB REPORT #:2301055 PROJECT/P0#: STORM VARIOUS LOCATIONS <br />Below is a listing of the samples received together with the laboratory results on <br />their respective PCB content. Please contact the lab at 209-384-2930 if you have <br />any questions regarding these sample results. <br />PCB <br />LAB I.D. SAMPLE I.D. DATE AROCLOR RESULT PQL MATRIX <br />(PPIO (PPR) <br />2301055-01 8216 PELTIER 01/13/23 ND 1.0 OIL <br />2301055-02 1330 ACACIA A 01/12/23 ND 1.0 OIL <br />2301055-03 1330 ACACIA B 01/12/23 ND 1.0 OIL <br />2301055-04 23431 TULLY RD. 01/10/23 ND 1.0 OIL <br />2301055-05 23500 VILLAGE 01/14/23 ND 1.0 OIL <br />2301055-06 24243 BUCK 01/09/23 ND 1.0 OIL <br />The following table shows the methods and detection limits used, all tests use EPA <br />SW846 Method 8082; quantification 7.9.3, PQL = Practical Quanitation Limit. <br />ND = non-detect. <br />TEST EXTRACTION METHOD PQL <br />APPROVED BY: GAIdel,..kodia fr10--u21/1.0 <br />UNITS TEST EQUIPMENT <br />OIL 3580 1.0 mg/Kg (ppm) GC <br />SOIL 3550 0.050 mg/Kg (ppm) SONICATOR/GC <br />WIPE 3550 1.0 pg/Area SONICATOR/GC <br />WATER 608/3510 0.010/0.0010 mg/L (ppm) LLE/GC <br />Page 1