ARCHIVED REPORTS XR0008665 - Laserfiche WebLink

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M TAWI M M M M M M m 4 GROUND WATER MONITORING DATA Exxon Service Station No 7-0137 1605 S El Dorado Street Stockton,California Ground Casmg Depth to Water Ethyl- Total TPPH as TEPH as Ethylene Total Monitoring Sample Elevation Water Elevation Benzene Toluene benzene Xylenes gasoline diesel MTBE Dibromide Lead Well Date (ft msl) (ft) (ft ms]) (pg/L) (n/L) (µg/L) W/L) (µg/1.,) 01g/L) (µg/L) (pg/L) (tig/L) VEW-1 07/15/98 NM DRY NC NS NS NS NS NS NS NS NS NS 10/14/98 DRY NC NS NS NS NS NS NS NS NS NS 01/26/99 DRY NC NS NS NS NS NS NS NS NS NS 05/19/99 DRY NC NS NS NS NS NS NS NS NS NS 07/30/99 DRY NC NS NS NS NS NS NS NS NS NS 10/28/99 DRY NC NS NS NS NS NS N5 NS NS NS 01/31/00 DRY NC NS NS NS NS NS NS NS NS NS VEW-2 07/15/98 NM 2601 NC 12 <0 5 <0 5 084 <50 NA 100 NA NA 10/14/98 2728 NC <0 5 <0 5 <0 5 <0 5 <50 NA 190 NA NA 01/26/99 2697 NC 051 <0 5 <0 5 <0 5 <50 NA 100 NA NA 05/19/99 2556 NC 0 707 <0 5 <0 5 <0 5 <50 NA 359 NA NA 07/30/99 2666 NC <0 5 <0 5 <0 5 110 65 9e NA 56 6' NA NA 10/28/99 2791 NC <1 0 <1 0 <10 <1 0 <50 NA Q±4 NA NA 01/31/00 2802 NC <1 0 <10 <10 <1 0 <50 NA 13 NA NA Trip Blank 10/14/98 N/A N/A N/A <0 5 <0 5 <0 5 <0 5 <50 NA <2 5 NA NA 01/26/99 N/A N/A <0 5 <0 5 <0 5 <0 5 <50 NA <2 5 NA NA 07/30/99 N/A N/A <0 5 <0 5 <0 5 <0 5 <50 NA <2 5 NA NA 10/28/99 N/A N/A <10 <10 <10 <10 <50 NA <10 NA NA 01/31/00 NIA N/A <10 <10 <10 <10 <50 NA <10 NA NA a=Confirmatory value,calculated by EPA Method 8260,for the sample with the highest value measured at the site by EPA Method 8020 b=Laboratory reported unidentified hydrocarbons C6-C12 I TPPH=Total purgeable petroleum hydrocarbons TEPH=Total extractable petroleumm hydrocarbons MTBE=Methyl tertiary butyl ether br EPA Method 8020 or EPA Method 8021 B R msl=Feet relative to mean sea level NA=Not analyzed NM=Not measured NC=Not calculated NS=Not sampled N/A=Not applicable (Page 8 of 8)99 965 xls