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y . . DEL-TECH GEOTECHNICAL SUPPORT SERVICES ' MONITORING WELL FIELD LOG 2004 ' SAMPLE LOCATION/MW - 4 DATE 11/3/2004 _:..::.. ' PROJECT NAME: - . GEORGE'S SERVICE. ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: 1600 DURHAM FERRY ROAD SAMPLE TIME: 12:02 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 I ODOR: NIA FUEL TOP OF CASING ELEVATION: MSL COLOR CLEAR DEPTH TO WATER: (feet.100th's) 13.37 FEET CALL.PURGE VOL.: 1.28 GAL. DEPTH OF WELL: (feet.1.00th's) 21.21 FEET TOTAL VOLUME PURGED: 3.84MPGAL. STANDING WATER COLUMN: 7.84 FEET DEPTH OF PUMP- 20 FEET TM 77777 FIELD PARAMETERS TIME CUMULATWE DRAW PUMPING pH E.C. TEMP. O.R.P. DISSOLVED TURBIDITY CASING VOLUME DOWN RATE OXYGEN COLOR PER PURGE (D.T.W.) (GPMALPM) (units) (MsMHOS) (Celsius) (Mvolts) (PPM) (N.T.U.) 0 NIA 1 .2 GPM 7.74 1281 23.2 -4.0 0.8 CLEAR 128 7.90 1271 23.0 -16.0- 1.99 " 2.56 8.01 1299 23.4 -22.0 2.02 " ' 3.84 8.05 . 1309 24.6 -28.0 1.99 " PURGE METHOD: HONDA CENTRIFUGAL,PUMP. SAMPLE METHOD: DEDICATED WATERRA INERTIA TUBING. ' D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TEgE: 15.04' WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION: SEE SITE MAP. REMARKS: WEATHER: CLEAR STIES. WIND: NONE QUALITY CONTROL: ALL PURGING EQUIPMENT AND SAMPLING EQUIPMENT WAS CLEANED IN THE ' FIELD WITHA'STEAMCLEANER&ALCONOX SOAP. NEW NITRILE GLOVES. CONTAINMENT: D.O.T.17 55 GAL.STEEL DRUM OR 60 GAL.POLY DRUM. INSTRUMENTATION: Y,S.I.3560 FLOWCEI.L Y.S.I.DISSOLVED OXYGEN METER SOLINIST SLOPE METER THERMODINE 580B P.I.D. KECK INTERFACE METER TURBIDITY METER