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N Guardino - Crawford -2- March 3 , 2011 <br /> Claim No . 14349 <br /> B . Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Depth to Water <br /> (feet bgs) (feet bgs) <br /> Nov 2010 <br /> MW- 1 Jul 99 15-35 15 . 64 <br /> MW-2 Jul 99 10-30 15 . 90 <br /> MW-3 Jul 99 10-30 15 . 71 <br /> MW-4 Jul 99 10-30 15 . 73 <br /> MW-5 Nov 00 10-25 15 . 15 <br /> MW-6 Nov 00 10-25 15 . 23 <br /> MW-7 Sep 04 10-25 15 . 11 <br /> MW-8 Sep 04 10-25 15 . 73 <br /> OB- 1 Jun 08 15-35 15 . 29 <br /> OB-2 Jun 08 15-35 15 . 56 <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 Water (ug/L WQOs <br /> Maximum Latest Maximum Latest ( ug/L) <br /> Nov 2010 <br /> TPH-g NA NA 2002000 862000 5 <br /> Benzene NA NA 40, 000 51700 0 . 15 <br /> Toluene NA NA 34, 000 11 , 000 42 <br /> Eth ( benzene NA NA 21500 4 ,200 29 <br /> Xylenes NA NA 37 , 000 10 , 900 17 <br /> MTBE NA NA 480 < 15 <br /> TBA NA NA <25 < 10 12 <br /> Z0 <br /> 1 , 2-DCA NA NA 0 44 0 . 5 <br /> NA: Not Analyzed , Not Applicable or Data Not Available <br /> mg/kg: milligrams per kilogram, parts per million <br /> ug/L: micrograms per liter, parts per billion <br /> WQOs: Water Quality Objectives <br /> V. FREE PRODUCT : none identified <br /> VI . SOIL AND GROUNDWATER REMEDIATION <br /> A. Soil Excavation : unknown volume in Apr 00 <br /> B. In -Situ Soil/ Groundwater Remediation : soil vapor extraction and air sparging <br /> pilot tests conducted <br /> California Environmental Protection Agency <br /> P.a Recyc/edpeper <br />