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DEL-TECH GEOTECHNICAL SUPPORT SERVICES MONITORING WELL FIELD LOG 2003 SAMPLE LOCATION/MW 101 DATE: 12/9/2003 PROJECT NAME: ESCALON/FORMER AM/PM ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: 1305 ESCALON AVENUE SAMPLE TIME: 13:55 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: WELL CASING DIA. : 2" / 0.1632 SAMPLE MEDIA: GROUNDWATER P.I.D.READING/ODOR: N/A NONE TOP OF CASING ELEVATION: MSL COLOR: BROWN TO CLEAR DEPTH TO WATER: (feet.100th's) 64.42 FEET CALC.PURGE VOL.: 3.51 GAL. DEPTH OF WELL- (feet.100th's) 85.95 FEET TOTAL VOLUME PURGED: 10.54 GAL. STANDING WATER COLUMN: 21.53 FEET DEPTH OF PUMP: 82 FEET FIELD PARAMETERS TIME C[m1uLATIVE DRAW PUMPING pH E. C. TEMP. O.R.P. DISSOLVED TURBIDITY CASING VOLUME DOWN RATE OXYGEN COLOR PERPURGE (D.T.W.) (GPM/LPM) (units) (UmMHOS) (Celsius) (Mvolts) (PPM) (N.T.U.) 0 N/A .5 GPM 7.44 618 18.9 95 3.91 BROWN 3.51 7.39 616 19 98.3 3.62 " 7.03 7.40 611 19 99.8 3.29 CLEAR 10.54 7.42 610 18.9 101.4 3.28 " V .r PURGE METHOD: DEDICATED WATERRA PUMP. SAMPLE METHOD: DEDICATED WATERRA PUMP. D.T.,W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 70.22' WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION: SEE SITE MAP. REMARKS: FAIR RECHARGE. WEATHER: CLEAR&HOT SKIES. WIND: NONE QUALITY CONTROL: ALL PURGING EQUIPMENT AND SAMPLING EQUIPMENT WAS CLEANED IN THE FIELD WITH A STEAMCLEANER&ALCONOX SOAP. NEW NITRILE GLOVES. CONTAINMENT: D.O.T. 17 55 GAL.STEEL DRUM OR 60 GAL.POLYDRUM. INSTRUMENTATION: Y.S.I.3560FLOWCELL Y.S.I.DISSOLVED OXYGEN METER SOLINIST SLOPE METER THERMODINE 580B P.I.D. KECK INTERFACE METER TURBIDITY METER v