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G _ 2- �. <br /> et-N-Go Mart : x <br /> May 28, 2008 , _. <br /> Claim No. 13850 <br /> y. B. Wonitoring Well Information <br /> 9 <br /> Well Designation. Date In Screen' Interval Most Recent DTW� <br /> . feet <br /> b s Jan 08 <br /> MW-1 Oct 00 ?:16 5.21 <br /> MW-2 * " Oct 00, ::?-16' _ 5.13 <br /> MW-3 Oct 00 ?-16 6.12 <br /> MW-4 Oct 00 ?-16 4.61 f.., <br /> MW-5 Oct.00 = ?-1.7 5.3.8 <br /> 'MW-6 Aug01 ?-44 " 5.68: , <br /> • MT-BE THREAT CLASSIFICATION: C <br /> • . LAND USE DESIGNATION: commercial y <br /> • ESTIMATED WATER QUALITY-OBJECTIVES (WQO'S) FOR SITE: Perthe <br /> Water Quality Control Plan (Basin Plan) for the Sacramento River Basin and�the <br /> San Joaquin River:B6sih (FourthEdition). ` <br /> ' IV: MAXIMUM DOCUMENTED CONTAMINANT'CONCENTRATIONS <br /> Contaminant Soil m Ik PRGs Water u IL WQOs <br /> Maximum Latest Residential , Industrial Maximum Latest k (ug/L) <br /> (mg Ik m l.k (Apr 08 <br /> TPH-9 NA a NA. 'SNA NA =- 10,000 110 5 . <br /> TPH-d NA . NAS NA NA. NA rN. NA 49 <br /> Benzene NA NA 0.64 1.4 490 <0.5 0.15 <br /> Toluene NA NA .520 520440 <0.5 42 <br /> Eth (benzene NA NA 400 400. 340 <0.5 29 <br /> Xylenes NA NA 270 420 1,300 <0.5 17 <br /> .MTBE • NA NA '32 , . 70.,,. .: , 6,000 520 5 <br /> TBA NA NA NA NA7 710 65 12 <br /> _ 1,2-DCA NA. NA NA NA. NA NA 0.5 <br /> Lead NA NA 400 -, 800 - NA ; NA 15 <br /> PCE NA NA A 7 130 :NA NA 0:06 <br /> :> TCE :::...: NA . .Nq 0 11 .. 110 NA NA 0.$ <br /> PRGs- USEPA Region 9-Preliminary Remediation Goals <br /> MCL Maximum Contaminant Levels <br /> AL Action Level <br /> NA- Not Analyzed Not Applicable or Data Not Available <br /> WQO. Water Quality Objectives <br /> V. FREE PRODUCT:.none'identified 4 <br /> . . s. <br /> VI. SOIL AND GROUNDWATER REMEDIATION <br /> A.. Soil Excavation: <br /> V. ' <br /> B. In-Situ Soil/ Groundwater Remediation:. A> :: <br /> • METHOD: ozone sparging <br /> , DURATION: -Aug 02'through, present iT <br /> Ca ff ornia En vironme461 Protection Agency <br /> CJ*Recycled Paper <br />