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DEL-TECH GEOTECHNICAL SUPPORT SERVICES MONITORING WELL FIELD LOG 2003 SAMPLE LOCATION/MVV 4 DATE: 12/9/2003 ,r PROJECT NAME: ESCALON/FORMER AM/PM ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: 1305 ESCALON AVENUE SAMPLE TIME: 10:00 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. : 2" / 0.1632 SAMPLE MEDIA: GROUNDWATER P.I.D.READING/ODOR: N/A NONE TOP OF CASING ELEVATION: MSL COLOR: LIGHT BROWN TO CLEAR DEPTH TO WATER: (feet.100th's) 65.01 FEET CALC.PURGE VOL.: 2.15 GAL. DEPTH OF WELL: (feet.100th's) 78.20 FEET TOTAL VOLUME PURGED: 6.46 GAL. STANDING WATER COLUMN: 13.19 FEET DEPTH OF PUMP: 75 FEET FIELD PARAMETERS �. TIME CUMULATIVE DRAW PUMPINGI pH E.C. TEMP. O.R.P. DISSOLVED TURBIDITY CASING VOLUME DOWN RATE I OXYGEN COLOR PERPURGE (D.T.W.) (GPM/LPM) (units) (UmMHOS) (Celsius) (Mvolts) (PPM) (N.T.U.) 0 N/A .5 GPM 7.57 599 18.1 78 4.33 LT.BROWN ... 2.15 7.44 593 18.7 72 4.11 " 4.31 7.40 589 19 72 3.4 CLEAR 6.46 7.34 588. 19 70 3.8 " V '—' PURGE METHOD: DEDICATED WATERRA PUMP. SAMPLE METHOD: DEDICATED WATERRA PUMP. D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 69.47' WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION: SEE SITE MAP. REMARKS: WEATHER: CLEAR&HOT SKIES. WIND: NONE QUALITY CONTROL: ALL PURGING EQUIPMENTAND 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.3560 FLOWCELL Y.S.I.DISSOLVED OXYGEN METER SOLINIST SLOPE METER THERMODINE 580B P.I.D. KECK INTERFACE METER TURBIDITY METER rr w