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I a �r DEL-TECH GEOTECHNICAL SUPPORT SERVICES MONITORING WELL FIELD LOG 2004 ....................................................................................................... SAMPLE LOCATION/MW- 3 DATE: 3/13/2004 PROJECT NAME: ESCALON/FORMER AM/PM ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: 1305 ESCALON AVENUE SAMPLE TIME: 15:55 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: A DEL-TECH WELL CASING MATERIAL: PVC SIGNED: 1 WELL CASING DIA.: 2" / 0.1632 SAMPLE MEDI GROUNDWATER P.I.D.READING/ODOR: N/A NONE TOP OF CASING ELE ION: MSL COLOR: BROWN TO LIGHT BROWN DEPTH TO WATER: feet.100th's 63.85 FEET CALC.PURGE VOL.: 2.09 GAL. DEPTH OF WELL: (feet.100th's) 76.68 FEET TOTAL VOLUME PURGED: 6.28 GAL. STANDING WATER COLUMN: 12.83 FEET I 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 7.18 686 20.6 28.4 4.56 BROWN 2.09 It 7.21 654 19.6 17.9 4.3 LT.BROWN 4.19 " " 7.32 652 19.6 13.5 4.14 " 6.28 7.36 652 19.6 14.7 6.38 " PURGE METHOD: DEDICATED WATERRA PUMP. SAMPLE METHOD: DEDICATED WATERRA PUMP.. D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 65.24' 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 WITH A STEAMCLEANER&ALC0N0X 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 THERMODWE 580B P.I.D. KECK INTERFACE METER TURBIDITY METER v .r