Laserfiche WebLink
Ranch Market • -2- • May 12, 2008 ` <br /> Claim No. 15211 <br /> B. Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Most Recent DTW <br /> feet b s Feb 08 <br /> MW-1 Dec 98 ? 28.72 <br /> MW-2 Dec 98 ? 28.24 <br /> MW-3 Dec 98 ? 28.85 <br /> MW-4 Dec 98 ? 29.78 <br /> MW-5 Aug00 ? 29.06 <br /> MW-5d Aug00 ? 29.57 <br /> MW-6 Aug00 ? 27.74 <br /> MW-7 Aug00 ? 29.75 <br /> MW-8 Aug00 ? 29.13 <br /> MW-9 Aug00 ? 32.54 <br /> AS-1 Jul 02 ? 28.66 <br /> • MTBE THREAT CLASSIFICATION: A <br /> • LAND USE DESIGNATION: residential and commercial <br /> • ESTIMATED WATER QUALITY OBJECTIVES (WQO'S) FOR SITE: Per the <br /> Water Quality Control Plan (Basin Plan) for the Sacramento River Basin and the <br /> San Joaquin River Basin (Fourth Edition). <br /> IV. MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS <br /> Contaminant Soil m /k PRGs Water (ug/L WQOs <br /> Maximum Latest Residential Industrial Maximum Latest (ug/L) <br /> (mg/kg) (mg/kg) Feb 08 <br /> TPH-g NA NA NA NA 180,000 2,800 5 <br /> TPH-d NA NA NA NA NA NA 49 <br /> Benzene NA NA 0.64 1.4 20,000 160 0.15 <br /> Toluene NA NA 520 520 24,000 58 42 <br /> Eth (benzene NA NA 400 400 4,400 5.5 29 <br /> Xylenes NA NA 270 420 25,000 130 17 <br /> MTBE NA NA 32 70 380 1 <0.5 5 <br /> TBA NA NA NA NA <2000 <5 12 <br /> 1,2-DCA NA NA NA NA 70 <0.5 0.5 <br /> Lead NA NA 400 800 NA NA 15 <br /> PCE NA NA 17 130 NA NA 0.06 <br /> TCE NA NA 0.11 110 NA NA 0.8 <br /> PRGs USEPA Region Preliminary Remedlation Goals <br /> MCL Maximum Contaminant Levels <br /> AL Action Level <br /> NA Not Analyzed, Not Applicable,or Data Not Available <br /> WOO Water Quality Objectives <br /> V. FREE PRODUCT: monitoring well MW-3 has contained up to 0.5 feet of free <br /> product. <br /> VI. SOIL AND GROUNDWATER REMEDIATION <br /> California Environmental Protection Agency <br /> A <br /> P.a Recyc/ed Paper <br />