Laserfiche WebLink
Table <br /> Historical Groundwater Monitoring and Analytical Data <br /> 7-Eleven Store#20632 <br /> 4627 Da Vinci Drive <br /> Stockton,CA <br /> Well IDI <br /> Elevation ©ate' senzeneen� n - <br /> OC fug/L) 'ten <br /> u iir h <br /> MW-6 <br /> 04/10/02 <0 5 <0 51 <0 5 <0 5 <50 <5 1 1 <5 <0 5 <0 5 <0 5 60 670 000 <br /> 238 07/10/02 <0 5 <0 5 <0 5 <0 5 <50 <5 13 <5 <0 5 <0 5 <0 5 14 712 000 -474 <br /> 10/16/02 <0 5 <0 5 <0 5 <0 5 <50 <5 14 <5 <0 5 <0 5 <0 5 10 740 000 -502 <br /> 03/26/03 <0 50 091 <0 50 084 <50 — 23 <5 0 <0 50 <0 50 <0 50 13 656 000 -418 <br /> MW-7 <br /> 04/10/02 <5 77 <5 52 <500 13,000 22,000 <5,000 <500 <500 <500 57 720 000 — <br /> 273 07/10/02 <10 <10 <10 <10 <1,200 21,000 30,000 <10,000 <1,000 <1,000 <1,000 1 3 765 000 -492 <br /> 10/16/02 <12 <12 <12 <12 <1,200 32,000 31,000 <5,000 <500 <500 <500 12 795 000 -522 <br /> 03/26/03 <100 <100 <100 <100 <10,000 -- 56,000 28,000 <100 <100 <100 07 714 000 -441 <br /> Explanation <br /> TPHg=Total petroleum hydrocarbons-as-gasoline TAME=Tert-amyl-methyl ether pglL=micrograms per liter <br /> MtBE=Methyl-tert-butyl ether DTW=Depth to water mglL=milligrams per liter <br /> TBA=Tert-butanol SPT=Separate-phase hydrocarbon thickness ft=feet <br /> DIPE=Dnsopropyl ether WTE=Water table elevation --=Not sampledlnot measured <br /> EtBE=Ethyl-tert-butyl ether TOC=Top of casing elevation in feet above mean sea level <br /> Notes <br /> Historical data pnor to 03/26/03 sample date provided by Shaw ESI <br /> All samples analyzed using EPA Method 82608 starting with 03/26/03 sample date <br /> a=Method Blank Contamination Method blank contains target analyte at a reportable level <br /> b=Estimated Benzene result Result concentration exceeds the calibration range <br /> c=Elevated reporting limit for MtBE TBA,DIPE EtBE The reporting limit is elevated due to matrix interference <br /> Id=Matrix SpikelMatnx Spike Duplicate Results for MtBE were affected by the analyte concentration already present n the un-spiked sample <br /> 20632 03-1QHistoncal Water Page 5 of 5 <br />