Laserfiche WebLink
Historical Groundwater Monitoring and Analytical Data <br /> 7-Eleven Store#21756 <br /> 853 East Yosemite Avenue <br /> Manteca CA <br /> K <br /> ll iDI Ethyl-ation Date Benzene Toluene Benzene Xylene TPHg 8020 MtBE TBA DIPE EtBE TAME DCA EDB Notes Oxygen DTW SPT WTE <br /> OC { { ) {p L { �} { } {u �1 f I {p {m feet feet fee <br /> MWA <br /> 3413 04/08/02 <0 5 <0 5 <0 5 <0 5 <50 -- <0 5 <5 <0 5 <0 5 <0 5 -- -- 1 9 1712 000 1701 <br /> 07/01/02 <0 5 <0 5 <0 5 078 <50 <5 <0 5 <5 <0 5 <0 5 <0 5 -- 16 1916 000 1497 <br /> 10/01102 <0 5 <0 5 <0 5 <0 5 <50 <5 <0 5 <5 <0 5 <0 5 <0 5 -- -- 1 1 1973 000 1440 <br /> 03/10/03 <0 50 <0 50 <0 50 <0 50 <50 -- <0 50 <5 0 <0 50 <0 50 <0 50 — -- 76 18 04 000 1609 <br /> 04/17/03 <0 50 <0 50 <0 50 <0 50 <50 -- <0 50 <5 0 <0 50 <0 50 <0 50 -- -- 28 1774 000 1639 <br /> 07/16/03 <0 50 <0 50 <0 50 <0 50 <50 — <0 50 <5 0 <0 50 <0 50 <0 50 -- -- 54 2044 000 1369 <br /> 10/23/03 <0 50 <0 50 <0 50 <0 50 <50 -- <0 50 <5 0 <0 50 <0 50 <0 50 -- -- b 61 2191 000 1222 <br /> 01/13/04 <0 50 <0 50 <0 50 <0 50 <50 -- <0 50 <5 0 <0 50 <0 50 <0 50 -- -- 47 2021 000 1392 <br /> 09/03/04 <0 50 <0 50 <0 50 <0 50 <50 <0 50 <5 0 <0 50 <0 50 <0 50 -- -- 67 2221 000 1192 <br /> 02/11/05 <0 50 <0 50 <0 50 <0 50 <50 -- <0 50 <5 0 <0 50 <0 50 <0 50 -- -- 39 1755 000 1658 <br /> 08/16/05 <0 50 <0 50 <0 50 <0 50 <50 -- <0 50 <5 0 <0 50 <0 50 <0 50 -- -- 82 1873 000 1540 <br /> Explanation <br /> TPHg=Total petroleum hydrocarbons-as-gasoline 1 2-DCA=1 2-Dichloroethane pglL=micrograms per liter <br /> WE=Methyl-tert butyl ether EDB=1 2-Oibromoethane mg/L=milligrams per later <br /> TSA=Teri-butanol DTW=Depth to water =Not sampled/not measured <br /> RIPE=Diisopropyl ether SPT=Separate-phase hydrocarbon thickness <br /> EtBE=Ethyl-tert-butyl ether WTE=Water table elevation <br /> TAME=Tert-amyl-methyl ether TOG=Top of casing elevation in feet above mean sea level <br /> Notes <br /> Historical data prior to 03110/03 sample date provided by Shaw E&I BTEX TPHg and MtBE analyzed using EPA Method 8020/8015 Modified <br /> Samples analyzed by EPA Method 82608 starting with 03/10/03 sample date <br /> a=Method Blank Contamination The associated method blank contains the target analyte at a reportable level <br /> b=Matrix SpikelMatnx Spike Duplicate Results for Toluene and Benzene were outside of control limits due to an inconsistency between vials Since the LCS recoveries were within control limits no data are flagged <br /> c=Less than 0 5 feet of water in well Groundwater sample not collected <br /> Id=Matrix SpikelMatnx Spike Duplicate Results associated with the analyte MtBE were affected by the analyte concentrations already present in the un spiked sample <br /> 17-Elevenl7-11 Stores1417561Tables121756 Current Groundwater xlsHistoncal Water 4 of 4 <br />