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` DEL-TECH GEOTECIMCAL SUPPORT SERVICES MONITORING WELL FIELD LOG 2004 SAMPLE LOCATION/MW- 2 DATE: 11/26/2004 PROJECT NAME: ESCALON/FORMER AM/PM ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: 1305 ESCALON AVENUE SAMPLE TIME: 15:30 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/DON LIGHT WELL CASING MATERIAL: PVC SIGNED: WELL CASING DIA.: 2" / 0.1632 SAMPLE MEDIA: GROUNDWATER P.I.D.READING/ODOR: N/A NONE ..r TOP OF CASING ELEVATION: MSLCOLOR: GREY DEPTH TO WATER: (feet.100th's) 66.27 FEET CALL.PURGE VOL.: 1.73 GAL. DEPTH OF WELL: (feet.100th's) 76.90 FEET TOTAL VOLUME PURGED: 5.20 GAL. STANDING WATER COLUMN: 10.63 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.) (GPMILPM) (units) (UmMHOS) (Celsius) (Mvolts) (PPM) (N.T.U.) 0 N/A .5 GPM 7.67 594 19.1 59.8 3.97 GREY 1.73 7.73 605 19.1 54.5 3.85 " 3.47 7.77 603 19.0 53.6 3.51 " 5.20 7.79 601 18.9 53.4 3.80 " PURGE METHOD: DEDICATED WATERRA PUMP. SAMPLE METHOD: DEDICATED WATERRA PUMP. D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 66.28' WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION: SEE SITE MAP. REMARKS: WEATHER: CLEAR SKIES. WIND: NONE QUALITY CONTROL: ALL PURGING EQUIPMENT AND SAMPLING EQUIPMENT WAS CLEANED IN THE FIELD WITH A STEAMCLEANER&ALCONOX SOAP. NEW NITRILE GLOVES. r CONTAINMENT: D.O.T.1755 GAL.STEEL DRUM OR 60 GAL.POLY DRUM. 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 s u