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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-1 <br /> Weather Clear and sunny --78 °F <br /> WATER COLUMN INFORMATION (ft ) [1; TOC Elevation 9583 <br /> a Depth to Water 52 47 <br /> Water Table Elevation 4336 <br /> b Total Well Depth 9001 <br /> Well Diameter 4" <br /> c Length of water column 37 54 <br /> d Well Casing Volume 24 55 _ <br /> [1; All datum reletive to a <br /> e Well Screen Length 10' <br /> f TOTAL WELL VOLUME 2455 measurment point located on <br /> the TOC <br /> WELL PURGING DATA <br /> a Purge Method 2" Grundfros Rede-Flow submersible pump <br /> b Purge Vol (@ 24 55 gal per well vol 1 12276 <br /> c Field Water Quality Monitoring Equipment pH - Cole Palmer 5900-00, Cond - Hanna H18733 <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 Descnptiom Odor Comments <br /> I- <br /> -70 t 2S ZZ '). CUES <br /> t2Z z <br /> Sample1 3 10 �'3 <br /> SAMPLE COLLECTION METHOD <br /> Method Disposable Teflon Bailer <br /> Sample Containers 40 ml VOA vials <br /> Sample Preservation HCL and ICE to 4°c <br /> Analyses EPA Method 8020 + MTBE, EPA Method 8015 mod - TPHg <br /> Laboratory Centrum Analytical Laboratories, Inc located in Redlands, CA <br /> COMMENTS <br />