Laserfiche WebLink
161 i <br /> Ol Summary of Gauging and Sampling Activities <br /> April 2004 through June 2004 <br /> Circle K Store 08671 <br /> 8606 Thornton Road <br /> Stockton, CA <br /> Site Information <br /> Site Circle K Store <br /> 8606 Thornton Road <br /> Stockton CA <br /> Project Coordinator/Phone Number Edward Ralston/916-558-7633 <br /> Groundwater wells onsite 8 <br /> Groundwater wells offsite 2 <br /> Field Activity <br /> Sampling consultant TRC <br /> Date(s)sampled 05/14/04 <br /> Groundwater wells gauged 10 <br /> Groundwater wells sampled 10 <br /> Purging method submersible pump <br /> Treatment/disposal method during sampling event OnxylRodeo Unit 100 <br /> Free product pumpouts other than sampling event No <br /> Treatment/Disposal method during free product pumpouts NIA <br /> Site Hydrogeology <br /> Minimum depth to groundwater(feet bgs) 326 <br /> Maximum depth to groundwater(feet bgs) 3552 <br /> Average groundwater elevation (feet relative to mean sea level) -2094 <br /> Average change in groundwater elevations since previous event(feet) 088 <br /> Groundwater gradient and flow direction ..see add I info <br /> Previous gradient and/or flow direction(and date) `see add'I info(02112104) <br /> Groundwater Condition(Benzene Maximum Contaminant Level[MCL]=1 0 Vg/I) <br /> Wells with benzene concentrations below MCL 10 <br /> Wells with benzene concentrations at or above MCL 0 <br /> Minimum benzene concentration(pg/1) ND <br /> Maximum benzene concentration(pgll) 0 96(MW-8) <br /> Minimum MTBE concentration(pglp ND <br /> Maximum MTBE concentration(µg11) 1900 <br /> Minimum TPPH concentration(pgll) ND <br /> Maximum TPPH concentration (pg/1) 1100(MW-4) <br /> Groundwater wells with free product 0 <br /> Minimum free product thickness(feet) 0 <br /> Maximum free product thickness(feet) 0 <br /> Additional Information <br /> "Groundwater gradients and flow directions are 0 003 ft/ft, northeast(Shallow Wells), 0 002 ft/ft east(Deep Wells) <br /> 'Previous groundwater gradients and flow directions were 0 001 ft/ft northwest(Shallow Wells), 0 006 ft/ft east(Deep Wells) <br /> • This report presents the results of groundwater monitoring and sampling activities performed by TRC Please contact the <br /> primary consultant for other specific information on this site <br />