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DEL-TECH GEOTECHNICAL SUPPORT SERVICES ' MONITORING WELL FIELD LOG 2404 SAMPLE LOCATION/MW - 2X DATE: 11/3/2004 ' PROJECT NAME: GEORGE'S SERVICE. ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: 1600 DURHAM FERRY ROAD SAMPLE TIME: 13:33 CITY,STATE: TRACY,CA. SAMPLE CONTAINERS: 4 VOA'S SITE CONTACT: GEORGE&MAE PRESERVATIVES: HCL ' CONSULTANT: GEOLOGICAL TECHNICS LAB.ANALYSIS BY SHERWOOD LABS PROJECT MANAGER ERIC PRICE MONUMENT: FLUSH SAMPLER: DEL-TECH. WELL CASING MATERIAL: PVC SIGNED:. WELL CASING DIA. . 2" / 0.1632 SAMPLE MEDIA: GROUNDWATER P.I.D.READING/ODOR: NIA NONE ' TOP OF CASING ELEVATION: MSL COLOR: . . GREY TO LIGHT GREY DEPTH TO WATER: (feeL100th's) 12.84 FEET CALC.PURGE VOL.: - 4.07 GAL. DEPTH OF WELL: (feet.100th's) 37.80 FEET TOTAL VOLUME PURGED: 12.22 GAL. . ' STANDING WATER COLUMN 24.96 FEET DEPTH OF PUMP- 37 FEET FIELD PARAMETERS TIME CuMuLATm DRAW PUMPING pH E.C. TEMP. O.R.P. DISSOLVED TURBIDITY CASING VOLUME DOWN RATE OXYGEN COLOR ' PER PURGE (D.T.W.) (GPMI[.PM) (units) 10UMHOS)i (Celsius) (Mvolts) (PPM? (NI.T-U.) 0 NIA .5 GPM 7.98 1170 19.5 12 1.1 GREY 4.07 _ 7.97 1464 19.6 5 0.87 LT.GREY ' 8.15 7.97 1452 19.4 -7 0.74 " 12.22 7.96 1447 19.2 -12 0.7 PURGE METHOD: WATERRA PUMP. SAMPLE METHOD: DEDICATED WATERRA INERTIA TUBING. ' D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 14.10' WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCA'T'ION: SEE SI'Z'E MAP. ' REMARKS: GOOD RECHARGE. WEATHER: CLEAR SKIES. WIND: NONE ' QUALITY CONTROL: ALL PURGING EQUIPMENT AND SAMPLING EQUIPMENT WAS CLEANED IN THE FIELD WITH A STEAMCLEANER&ALCONOX SOAP. NEW NITRILE GLOVE'S. CONTAINMENT: D.O.T.17 55 GAL STEEL DRUM OR 60 GAL POLY DRUM. ' INSTRUMENTATION: Y.Sl 3560 FLOWCEIL Y.S.I.DISSOLVED OXYGEN METER SOLINiST SLOPE METER 'THERMODINE 580B PI.D. KECK INTERFACE METER TURBIDITY METER