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r <br /> 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 9117196 <br /> Samplers R Roberts, V Millar Well ID MW-7 <br /> Weather Hot and sunny <br /> WATER COLUMN INFORMATION (ft [11 <br /> a Depth to Water 6012 TQC Elevation 9635 <br /> b Total Well Depth 8668 Water Table Elevation 3623 <br /> c Height of water column 2656 Well Diameter 2" <br /> d Well Casing Volume (gals) 4 <br /> e Well Screen Length 20 [11 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 } 13 gal (3x well volume) <br /> c Field Water Quality Monitoring Equipment Accumet 1002 pH, Hanna H18733 cond meters <br /> d Pump Flow Rate (gpm) 1 8 <br /> e Method of Purge Water Disposal 17-H - 55 gallon drums <br /> Volume Specific <br /> Removed Nal) Time T°c pH Conductance description Odor Comments <br /> 8 1843 21 6 87 1 36 cloudy no <br /> 15 1847 21 690 1 39 sit cloudy no <br /> Sample 1905 <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 + MTBE, EPA Method 8015 mod - TPHg <br /> Laboratory Centrum Analytical Laboratories, Inc located in Redlands, CA <br /> COMMENTS <br />