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DEL-TECH GEOTECHNICAL SUPPORT SERVICES d MONITORING WELL FIELD LOG 2004 -r SAMPLE LOCATION/MW 3 DATE: 5/7/2004 .. ........................................... PROJECT NAME: ESCALON/FORMER AM/PM ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY —' ADDRESS: 1305 ESCALON AVENUE SAMPLE TIME: 9:37 CITY,STATE: ESCALON,CA SAMPLE CONTAINERS: 4 V.O.A:S SITE CONTACT: 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. : 211 / 0.1632 SAMPLE MED GROUNDWATER P.I.D.READING/ODOR: N/A NONE TOP OF CASING ELEVATION: MSL COLOR: LIGHT BROWN .r DEPTH TO WATER: feet.100th's 64.37 FEET CALC.PURGE VOL.: 2.01 GAL. DEPTH OF WELL; feet.100th's) 76.68 FEET TOTAL VOLUME PURGED: 6.03 GAL. STANDING WATER COLUMN: 12.31 FEET DEPTH OF PUMP: 75 FEET FIELD PARAMETERS �y 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) (UmMHOS) (Celsius) (Mvolts) (PPM) (N.T.U.) 0 N/A .5 GPM 7.11 708 19.7 35.8 4.93 LT.BROWN .r 2.01 It 7.15 706 19.6 33.7 5.26 " 4.02 7.13 702 19.6 33.6 5.28 " 6.03 7.12 701 19.6 33.1 5.18 " .. PURGE METHOD: DEDICATED WATERRA PUMP. SAMPLE METHOD: DEDICATED WATERRA PUMP. D.T.W.AFTER PURGE: D.T:W.AT SAMPLE TIME: 64.38' WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION: SEE SITE MAP. REMARKS: WEATHER: CLEAR SKIES. WIND: NONE QUALITY CONTROL: ALL PURGING EQUIPMENTAND SAMPLING EQUIPMENT WAS CLEANED IN THE FIELD WITHA STEAMCLEANER&ALCONOX SOAP. NEW NITRILE GLOVES. .. CONTAINMENT: D.O.T. 17 SS GAL.STEEL DRUM OR 60 GAL.POLYDRUM. INSTRUMENTATION: Y.S.I.3560 FLOWCELL Y.S.I.DISSOLVED OXYGEN METER SOLINIST SLOPE METER THERMODINE 580B P.I.D. KECK INTERFACE METER TURBIDITY METER r wr