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• BROWN & ROOT ENVIRONMENTAL <br /> GROUNDWATER SAMPLE COLLECTION RECORD <br /> Site Name E-Z Serve #100966 Job # MY47 <br /> Location 2537 Waterloo Road, Stockton, CA Date 9114196 <br /> Samplers R Roberts, V Millar Well ID MW-8 <br /> Weather Hot and sunny <br /> WATER COLUMN INFORMATION (ft ) [1] <br /> a Depth to Water 5992 TOC Elevation 9626 <br /> b Total Well Depth 87 Water Table Elevation 36 34 <br /> c Height of water column 2708 Well Diameter 2" <br /> d Well Casing Volume (gals) 4 <br /> e Well Screen Length 20 [1] All datum are relative to a <br /> f TOTAL WELL VOLUME measurment point located on <br /> the TOC <br /> WELL PURGING DATA <br /> a Purge Method 2" Grundfros Redi-Flow submersible pump <br /> b Purge Vol (@ gal per well vol 1 13 gal (3x well volume) <br /> c Field Water Quality Monitoring Equipment Accumet 1002 pH, Hanna H18733 Gond meters <br /> d Pump Flow Rate (gpm) 1 <br /> e Method of Purge Water Disposal 17-H - 55 gallon drums <br /> Volume Specific <br /> Removed (gal 1 Time TOC pH Conductance Description Odor Comments <br /> 5 1235 23 703 098 cloudy no <br /> 12 1242 23 708 1 18 clear no <br /> 16 1246 227 709 1 21 clear no <br /> Sample 1450 <br /> SAMPLE COLLECTION METHOD <br /> Method Disposable Teflon Bailer <br /> Sample Containers 40 ml VOA vials <br /> Sample Preservation HCL and ICE to 4 degrees centigrade <br /> Analyses EPA Method 8020 + MTSE, EPA Method 8015 mod - TPI-Ig <br /> Laboratory Centrum Analytical Laboratories, Inc located in Redlands, CA <br /> COMMENTS <br /> d <br />