Laserfiche WebLink
Summary of Gauging and Sampling Activities <br /> October 2003 through December 2003 <br /> 76 Station 5886 <br /> 2701 West March Lane <br /> Stockton, CA <br /> Site Information <br /> Site 76 Station <br /> 2701 West March lane <br /> Stockton CA <br /> Project Coordinatorl Phone Number Edward Ralston/916-558-7633 <br /> Groundwater wells onsite 11 <br /> Groundwater wells offsite 9 <br /> Field Activity <br /> Sampling consultant TRC <br /> Date(s)sampled 11/20/03 <br /> Groundwater wells gauged 16 <br /> Groundwater wells sampled 11 <br /> Purging method submersible pump/bailerldiaphrag <br /> Treatmentidisposal method during sampling event Onyx/Rodeo Unit 100 <br /> Free product pumpouts other than sampling event No <br /> Treatment/Disposal method during free product pumpouts NIA <br /> I <br /> Site Hydrogeology <br /> Minimum depth to groundwater(feet bgs) 585 <br /> Maximum depth to groundwater(feet bgs) 9 <br /> Average groundwater elevation (feet relative to mean sea level) -677 <br /> Average change in groundwater elevations since previous event(feet) 050 <br /> Groundwater gradient and flow direction 0 003 fdft southwest <br /> Groundwater Condition(Benzene Maximum Contaminant Level[MCL)= 1 0 pg/1) <br /> Wells with benzene concentrations below MCL 9 <br /> Wells with benzene concentrations at or above MCL 2 <br /> Minimum benzene concentration(pg/1) ND <br /> Maximum benzene concentration(pg/1) 3 3(MW-6D) <br /> Minimum MTBE concentration(pg/1) ND <br /> Maximum MTBE concentration(pg/1) 2100 <br /> Minimum TPPH concentration(pgll) ND <br /> Maximum TPPH concentration(Ng/1) 1700(MW-1) <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 /> MW-5D=Monitored Only, MW-53=Monitored Only MW-70=Monitored Only MW-7S=Monitored Only, MW-90=Monitored <br /> Only <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 />