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04/21/23 <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:04/11/23 LICENSE:CA ELAP 2480 <br />2304072 PROJECT/PO#:VARIOUS LOCATIONS <br />LAB I.D.PQL MATRIX <br />(ppm) <br />2304072-01 1.0 OIL <br />24 HR <br />2304072-02 1.0 OIL <br />24 HR <br />2304072-03 1.0 OIL <br />24 HR <br />2304072-04 1.0 OIL <br />24 HR <br />2304072-05 1.0 OIL <br />24 HR <br />2304072-06 1.0 OIL <br />24 HR <br />2304072-07 1.0 OIL <br />24 HR <br />2304072-08 1.0 OIL <br />24 HR <br />OIL 3580 1.0 mg/Kg (ppm) GC <br />SOIL 3550 0.050 mg/Kg (ppm) SONICATOR/GC <br />WIPE 3550 1.0 μg/Area SONICATOR/GC <br />WATER 608/3510 0.010/0.0010 mg/L (ppm) LLE/GC <br />FRENCH CAMP 04/18/23 ND <br />RENEE ST 04/20/23 ND <br />NDB-5 04/14/23 <br />B-4 04/14/23 ND <br />(ppm) <br />04/14/23 <br />ND <br />B-2 <br />PQL <br /> PCB SUMMARY REPORT <br />LAB REPORT #: <br />RESULT <br />PCB <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 />B-3 04/14/23 <br />Page 1 <br />B-1 04/14/23 ND <br />AROCLOR <br />ND <br />EXTRACTION METHOD <br />APPROVED BY:________________________ <br /> CASTLE ANALYTICAL LABORATORY <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 />VERA AVE <br />SAMPLE I.D.DATE <br />UNITS <br />04/17/23 <br />TEST <br />ND <br />TEST EQUIPMENT