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DEL- ftCH GEOTECHNICAL SUPPORT SERVICES MONITORING WELL FIELD LOG 2003 SAMPLE LOCATION i MW 4 DATE: 10/16/2003 IL PROJECT NAME. 'SINCLAIR TRUCKING ANALYSIS PERFORMED. SEE CHAIN OF CUSTODY ADDRESS: 3780 W.LINNE ROAD. SAMPLE TIME: 15:56 CITY,STATE: TRACY,CA. SAMPLE CONTAINERS: 4 V.O.A.'S ' SITE CONTACT: PRESERVATIVES: HCL CONSULTANT: GEOLOGICAL TECHNICS INC. LAS.ANALYSIS BY: SHERWOOD LAB. ' 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 ELE ION: MSL COLOR: BROWN TO CLEAR DEPTH TO WATER: (feet.X00th's) 12.67 FEET CALC.PURGE VOL.: 2.05 GAL'. DEPTH OF WELL: (feet.100th's) 25.24 FEET TOTAL VOLUME PURGED: 6.15 GAL. STANDING WATER COLUMN: 12.57 FEET DEPTH OF PUMP 25 FEET FIELD PARAMETERS TIME CUMULATIVE DRAW PUMPING pH E. C. TEMP. O.R.P. DISSOLVED TURBIDITY CASING VOLUME DOWN RATE OXYGEN COLOR PER PURGE (D.T.W.) (GPM/LPM) (units) (UsMHOS) (Celsius) (Mvolts) (PPM) (N.T.U.) ' 0 NIA .5 GPM 7.75 1928 22 -56.0 0.43 BROWN 2.05 7.76 2193 21.8 -58.0 0.42 " 4.10 7.76 2188 21.6 -58.0 0.41 " ' 6.15 7.75 2184 21.5 -58.0 0.37 " PURGE METHOD: DEDICATED WATERRA PUMP. SAMPLE METHOD: DEDICATED WATERRA PUMP, ' D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 18.95' WELL INTEGRITY: CAP&SEAL ARE SECURE. AMERICAN LOCK IS INSTALLED. WELL LOCATION: SEE SITE MAP. REMARKS: SLOW RECHARGE ON THIS EVENT. ' WEATHER: CLEAR WIND: NONE QUALITY CONTROL: ALL PURGING EQUIPMENTAND SAMPLING EQUIPMENT WAS CLEANED IN THE FIELD WITH A STEAMCLEANER&ALCONOX SOAP. NEW NITRILE'GLOVES. CONTAINMENT: D.O.T. 1755 GAL STEEL DRUM OR 60 GAL.POLYDRUM. INSTRUMENTATION: Y,S.I.3560FLOWCELL Y.S.I.DISSOLVED OXYGEN METER SOLINIST SLOPR METER T.HERMODINE 5808 P.I.D. KECK INTERFACE METER TURBIDITY METER