Laserfiche WebLink
Ta* • <br /> Historical Groundwater Monitoring and Analytical Data <br /> 7-Eleven Store#17334 <br /> 4501 North Pershing Avenue <br /> Stockton CA <br /> Well ID! Ethyl- MtBE Dissolved <br /> Elevation Date Benzene Toluene Benzene Xylene TPHg TPHd 8020 MtBE TBA RIPE EtBE TAME Dotes Oxygen DTW SPT WTE <br /> TOC (Pg/-) (Pg►L) (N } (ugfL) (ugtL) (Pgn-) (ua/L) (UUM I I-11} ( L) iug►L) (pglL) (mg1L} (feety (feet} (reef} <br /> MW-5B <br /> 746 12/29/98 3,410 19,800 2,610 16,700 63,400 -- 9,480 <100 <25 <25 <25 1 2 1576 000 -830 <br /> 02/17/99 11 240 120 780 5,300 — <5 <5 <20 <5 <5 <5 03 1490 000 -744 <br /> 05/21/99 100 214 38 2,610 8,780 30 <100 <25 <25 <25 02 1479 000 -733 <br /> 08/28/99 259 151 262 286 2,340 — 102 553 <20 <5 <5 <5 10 1635 000 -889 <br /> 11/24/99 925 224 397 274 1,260 877 882 221 <5 <5 <5 14 1630 000 -884 <br /> 02/02/00 483 763 274 105 274 — <5 <5 <20 <5 <5 <5 17 1588 000 -842 <br /> 05I16too 16 49 10 43 220 - 45 <50 <2 <2 <2 47 1394 000 -648 <br /> 08/08/00 53 100 <25 140 630 19 <50 <2 <2 <2 16 1570 000 -824 <br /> 11/14/00 38 74 16 96 510 16 <50 <2 <2 <2 05 1590 000 -844 <br /> 02/06/01 21 32 95 61 360 5 <50 <2 <2 <2 a 05 1570 000 -824 <br /> 05/23/01 39 52 16 42 210 18 <50 <2 <2 <2 20 1588 000 -842 <br /> 08/21/01 77 170 42 190 460 15 <50 <2 <2 <2 1 3 1724 000 -978 <br /> 11/06/01 13 8 12 28 160 11 <20 <5 <5 <5 08 1771 000 -1025 <br /> 01/09/02 <5 <5 <5 <5 <50 <10 <20 <5 <5 <5 09 1580 000 -834 <br /> 04/11/02 <0 5 <0 5 <0 5 <0 5 <50 -- <5 <0 5 <5 <0 5 <0 5 <0 5 08 1646 000 -900 <br /> 07/10/02 <0 5 <05 <0 5 <0 5 <50 — <5 052 <5 <0 5 <0 5 <0 5 08 1752 000 -1006 <br /> 10/15/02 <0 5 <0 5 <0 5 <0 5 <50 <5 1 2 <5 <0 5 <0 5 <0 5 1 0 1840 000 -1094 <br /> 03127103 <0 50 <0 50 <0 50 <0 50 <50 — — <0 50 <5 0 <0 50 <0 50 <0 50 06 1722 000 -976 <br /> 05/20/03 <0 50 <0 50 <0 50 <0 50 <50 — — 061 <5 0 <0 50 <0 50 <0 50 67 1708 000 -962 <br /> Explanation <br /> TPHg=Total petroleum hydrocarbons-as-gasoline EtBE=Ethyl-tert-butyl ether TOC=Top of casing elevation in feet above mean sea level <br /> TPHd=Total petroleum hydrocarbons-as-diesel TAME=Tert-amyl-methyl ether pglL=micrograms per liter <br /> MtBE=Methyl-tert butyl ether DTW=Depth to water mg/L=milligrams per liter <br /> TBA=Tert-butanol SPT=Separate-phase hydrocarbon thickness ft=feet <br /> DIPS=Ditsopropyl ether WTE=Water table elevation –=Not sampled/not measured <br /> Notes <br /> Histoncal data pnor to 03/27/03 sample date provided by Shaw E&I <br /> All samples analyzed using EPA Method 82608 starting wnth 03/27/03 sample date <br /> a=Method Blank Contamination for Ethylbenzene The associated method blank contains the target analyte at a reportable level <br /> b=Method Blank Contamination for Toluene The associated method blank contains the target analyte at a reportable level <br /> 117-Elevenl7 11 Stores1173341Tables117334 03-20 xlsHistoncal Water Page 6 of 6 <br /> I <br />