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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, Stockton, CA Date 6115196 <br /> Samplers T Nicotera\A Lamb Well ID MW-4 <br /> Weather Clear and sunny --78 °F <br /> WATER COLUMN INFORMATION (ft ) [1l TOC Elevation 95 92 <br /> a Depth to Water 5260 <br /> b Total Well Depth 9090 1_ Water Table Elevation 4332 <br /> c Length of water column <br /> 3737 5_ Well Diameter 4" <br /> d Well Casing Volume 2454 <br /> e Well Screen Length 10' _ [1l All datum are relative to a <br /> f measurment point located on <br /> TOTAL WELL VOLUME 2454 <br /> the TOC <br /> WELL PURGING DATA <br /> 2" Grundfros Redi-Flow submersible pump <br /> a Purge Method <br /> b Purge Vol {@ 24 54 gal per well vol } 122 72 <br /> c Field Water Quality Monitoring Equipment pH - Cole Palmer 5900-00, <br /> Cond - Hanna HI$733 <br /> d Pump Flow Rate 1 0 gpm <br /> e Method of Purge Water Disposal 17-H - 55 gallon drums <br /> Volume Specific <br /> Removed al Time <br /> T'c pH Conductance Descriptiom Odor Comments <br /> F)oz• 1 d <br /> �o IZs 22 0 140 <br /> 2 <br /> 22 0 it <br /> Sample ipQ <br /> 22 0 r <br /> SAMPLE COLLECTION METHOD <br /> Method Disposable Teflon Sailer <br /> Sample Containers 40 ml VOA vials <br /> Sample Preservation HCL and ICE to 4°c <br /> Analyses EPA Method 8020 t MTBE, EPA Method 8015 mod - TPHg <br /> Laboratory Centrum Analytical Laboratories, Inc located in Redlands, CA <br /> COMMENTS <br />