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i r DEL-TECH GEOTECHNICAL SUPPORT SERVICES r MONITORING WELL FIELD LOG 2004 SAMPLE LOCATION/MW- 3 DATE: 8/12/2004 PROJECT NAME: ESCALON/FORMER AM/PM ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY — ADDRESS: 1305 ESCALON AVENUE SAMPLE TIME: 14:44 CITY,STATE: ESCALON,CA SAMPLE CONTAINERS: 4 V.O.A.'S SITE CONTACT: PRESERVATIVES: HCL CONSULTANT: GEOLOGICAL TECHNICS I 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 MEDI GROUNDWATER P.I.D.READING/ODOR: N/A NONE TOP OF CASING ELEVATION: MSL COLOR: LIGHT BROWN DEPTH TO WATER: feet.100th's 66.14 FEET CALC.PURGE VOL.: 1.72 GAL. DEPTH OF WELL: (feet.100th's) 76.68 FEET TOTAL VOLUME PURGED: 5.16 GAL. STANDING WATER COLUMN: 10.54 FEET DEPTH OF PUMP: 75 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) (UmMHOS) (Celsius) (Mvolts) (PPM) (N.T.U.) 0 N/A .5 GPM 7.10 7115 19.6 35 4.6 LT.BROWN 1.72 to it 7.06 705 19.4 39 4.7 to 3.44 It it 7.05 694 19.7 44 4.7 It 5.16 7.03 690 19.9 48 5 " r PURGE METHOD: DEDICATED WATERRA PUMP. SAMPLE METHOD: DEDICATED WATERRA PUMP. D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 69.1 P WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION: SEE SITE MAP. REMARKS: WEATHER: CLEAR SKIES. WIND: NONE QUALITY CONTROL: ALL PURGING EQ UIPMENT 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.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 1 r r