Laserfiche WebLink
Yamada Bros Inc. -2- May 7, 2009 <br /> Claim No. 17042 <br /> B. Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Most Recent DTW <br /> feet b s Oct 08 <br /> MW-1 Sep 00 5-25 5.98 <br /> MW-2 Se 00 5-25 5.30 <br /> MW-3 Sep 00 5-25 5.13 <br /> MW-4 Jun 04 5-25 6.48 <br /> MW-5 Jun 04 5-25 5.96 <br /> MW-6 Jun 04 5-25 4.97 <br /> MW-7 Jun 04 5-25 6.66 <br /> • MTBE THREAT CLASSIFICATION: N <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 ESLs Water u IL WQOs <br /> Maximum Latest Shallow industrial 2 Maximum Latest (uglL) <br /> Soil' (Oct 08) <br /> Residential Dermal <br /> m /k (mg/kg) <br /> TPH- NA NA 83 450 4,800 4,800 5 <br /> TPH-d NA NA 83 450 <50 NA 56 <br /> Benzene NA NA 0.044 0.27 9.5 <0.5 0.15 <br /> Toluene NA NA 2.9 210 9.2 <0.5 42 <br /> Eth Ihenzene NA NA 2.3 5.0 50 2.8 29 <br /> Xylenes NA NA 2.3 100 216 <0.5 17 <br /> MTBE NA NA 0.023 65 310 <1 5 <br /> TBA NA NA 0.075 320,000 <10 NA 12 <br /> 1,2-DCA NA NA 0.0045 0.48 <17 NA 0.4 <br /> Lead NA NA 200 750 NA NA 15 <br /> PCE NA NA 0.37 0.95 NA NA 0.06 <br /> TCE NA NA 0.11 110 NA NA 0.8 <br /> 1 Environmental Screening Levels(ESLs)Shallow Soil<3m,Groundwater is source of Drinking Water. <br /> 2 ESLs,Shallow soil Screening Levels,Groundwater not source of Drinking Water,Commercial Use, Direct Exposure, <br /> Worker <br /> NA Not Analyzed,Not Applicable,or Data Not Available <br /> WQO Water Quality Objectives <br /> FP Free phase product in site wells <br /> V. FREE PRODUCT: none identified <br /> VI. SOIL AND GROUNDWATER REMEDIATION <br /> A. Soil Excavation: unknown volume <br /> B. In-Situ Soil/ Groundwater Remediation: batch extraction from MW-4 is <br /> proposed. <br /> California Environmental Protection Agency <br /> Z,l Recyded Paper <br />