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in i V11 vi x V12 Peaks Prior Peaks Not £ Peaks Prior Peaks Not Sample ID Date Depth Benzene Toluene to Benzene Identified Peaks Prior Peaks Not Depth Benzene Toluene - Depth Benzene Toluene Sample ID Date to Benzene Identified ft PPM ppm vs vs Sample ID Date to Benzene Identified V1 Jun-87 3 ND ND ND ND ft ppm ppm VS VS V1/B Jun-87 5.5 ND ND ND ND m V1/C Jun-87 8 ND ND ND ND CD ft ppm ppm VS VS V11 Jun 87 7.5 ND ND ND ND V1/D Jun-87 8.5 ND ND ND ND Cu V12 Jun-87 7.5 ND ND ND ND DRAINAGE Cu DITCH 6 V7 Peaks Prior Peaks Not Sample ID Date Depth Benzene Toluene to Benzene Identified rA TB-16 T618 LEGEND TB-13 ft ppm ppm VS VS rwzTB 1e® SYMBOL DESCRIPTION V7 Jun-87 7.5 5.00 170 160 100 ®1z V13* UST GAS SAMPLE LOCATION m Ts-,S ®r6-n TB-21 1 ■ PA SOIL SAMPLE LOCATION ❑ OLE RACK ® TB 0® TB-19® SI SOIL BORING 3 V9 T 3 TWA 9 SI MONITORING WELL 0 C5 Peaks Prior Peaks Not — — — B-2♦ UST SOIL BORING SUBSTATION YARD Depth Benzene Toluene TB-2z® Sample ID Date to Benzene Identified T® OW-1 m UST MONITORING WELL 6r- CATCH (ABANDONED) o ft ppm ppm VS VS 1m1 SERV / 1 B-2 OW-1 CENT TB-29 p „ „ DETECTIONS OF COPCs V9 Jun 87 7.5 ND ND ND ND ® TB-30® V1 WAREHB-11 T -31® TW-1!� v BASIN oo -6 T® EXISTING STRUCTURE V2s 2 z / TB-256 TB 24 RAILROAD TRACK 1 TB-27 A Peaks Prior Peaks Not TB-1 oW 2MB m Depth Benzene Toluene OW-4 ®TB-32 0On 3 C5 Sample ID Date to Benzene Identified DRAINAGE SWALE/DITCH L7 P TB- (D TB-10® B-28® TB-33® TB-26® Q v ti ft ppm ppm VS VS GATE 1 V10 3 v 5 6 METER AN➢REGULATOR AREA X CHAIN LINK FENCE NATURAL GAS o V2 Jun 87 7.5 1000 900 11600 3000 w3 0 o� Ln "w V10 c kn Depth Benzene Toluene Peaks Prior Peaks Not V8 o Sample ID Date to Benzene Identified 0- ft ppm ppm VS VS Depth Benzene Toluene Peaks Prior Peaks Not 5� 00 V_ ^ V10 Jun-87 7.5 ND ND ND ND Sample ID Date to Benzene Identified a L, ft ppm ppm VS VS SCALE IN FEET V8 Jun-87 7.5 ND ND ND ND tA L V3 3 O1 NOTES: Peaks Prior Peaks Not 1.SOIL GAS SAMPLES WERE ANALYZED IN THE FIELD USING L Sample ID Date Depth Benzene Toluene to Benzene Identified V6 A PORTABLE GAS CHROMATOGRAPH CALIBRATED TO C BENZENE AND TOLUENE o: ft ppm ppm VS VS Peaks Prior Peaks Not i2Depth Benzene Toluene DEFINITIONS: V3 Jun-87 7.5 ND ND ND ND Sample ID Date to Benzene Identified 1.ft=feet 2.ppm=parts per million L ft ppm ppm VS VS 3.VS=volt-seconds LqV6 Jun 87 7.5 ND ND ND ND 4.NO=Non-detect " w V4 o Peaks Prior Peaks Not Detections of COPCs in Soil Gas LD x Sample ID Date Depth Benzene Toluene to Benzene Identified V13 V5 From Previous Investigations M Lj ft ppm ppm Depth Benzene Toluene VS VS Depth Benzene Toluene Peaks Prior Peaks Not Peaks Prior Peaks Not CLIENT: Lo 0- V4 Jun-87 7.5 ND ND ND ND Sample ID Date to Benzene Identified Sample ID Date to Benzene Identified Pacific Gas and Electric Company CL ft ppm ppm VS VS ft ppm ppm VS VS LOCATION: Former Tracy MGP Site A V13 Jun-87 7.5 ND ND ND ND V5 Jun-87 7.5 7.00 25.0 14.0 10.0 Remedial Investigation Report m CL FIGURE: Q, Y PA RSO N S 7