Laserfiche WebLink
.1 <br /> Summary of Gauging and Sampling Activities <br /> July 2004 through September 2004 <br /> Former BP Oil 11192 <br /> 1403 Country Club Boulevard <br /> Stockton, CA <br /> Project Coordinator Edward Ralston Water Sampling Contractor TRC <br /> Telephone 916-558-7633 Compiled by Christina Carrillo <br /> Date(s) of Gauging/Sampling Event 08/10/04 <br /> Sample_Points <br /> Groundwater wells 10 onsite, 3 offsite Wells gauged 12 Wells sampled 12 <br /> Purging method Submersible pump <br /> Purge water disposal Onyx/Rodeo Unit 100 <br /> Other Sample Points 0 Type n/a <br /> Liquid Phase Hydrocarbons (LPH) <br /> Wells with LPH 0 Maximum thickness (feet) n/a ^ <br /> LPH removal frequency n/a Method n/a <br /> Treatment or disposal of water/LPH n/a <br /> Hydrogeologic Parameters <br /> Depth to groundwater (below TOC) Minimum 14.68 feet Maximum 20.68 feet <br /> Average groundwater elevation (relative to available local datum) -11.01 feet <br /> • Average change in groundwater elevation since previous event -1.26 feet <br /> Interpreted groundwater gradient and flow direction <br /> Current event 0.002 ft/ft, north <br /> Previous event 0.002 ft/ft, north (05/21/04) <br /> Selected Laboratory Results <br /> Wells with detected Benzene; 0 Wells above MCL (1 0 dig/1) n/a <br /> Maximum reported benzene concentration n/a <br /> Wells with TPPH 82608 0 <br /> Wells with MTBE 4 Maximum 12 pg/I (MW-4) <br /> Wells with TBA 82608 4 Maximum 83,000 Ng/l (MW-7) <br /> Notes: <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 />