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DEL-TECH GEOTECHNICAL SUPPORT SERVICES ' MONITORING WELL FIELD LOG 2003 SAMPLE LOCATION!MW- s DATE: 71/25/2003 : ' PROJECT NAME: VALLEY WHOLESALE DRUG ANALYSIS PERFORMED. SEE CHAIN OF CUSTODY ADDRESS: FREMONT STREET SAMPLE TAUT,: 11:11 CITY,STATE: STOCKTON,CA. SAMPLE CONTAINERS: 4 V.O.A.'S ' SITE CONTACT: PAUL SOUVA PRESERVATIVES: HCL CONSULTANT: GEOLOGICAL TECHNICS LAB.ANALYSIS BY: SHERWOOD LABS ' I PROJECT MANAGER: ERIC PRICE MONUMENT. FLUSH SAMPLER: DEL-TECH WELL CASING MATERIAL PVC SIGNED: WELL CASING DIA.: 2" 1 0.1632 SAMPLE MEDIA: GROUNDWATER P.I.D.READING/ODOR: NIA NONE TOP OF CASING ELEVATI MSL COLOR: LIGHT GREY DEPTH TO WATER: (feet.100th's) 7.99 FEET CALC.PURGE VOL.: 2.80 GAL. DEPTH OF WELL: (feet.100th's) 25.12 FEET TOTAL VOLUME PURGED: 8.39 GAL, STANDING WATER COLUMN 17.13 FEET DEPTH OF PUMP 24 FEET FIELD PARAMETERS TIME CUMULATIVE DRAW PUMPING PH E.C. 'TEMP. O.R.P. DISSOLVED TURBIDITY CASING VOLUME DOWN RATE OXYGEN COLOR ' PERPURGE (D.T.W.) (GPMILPM) (units) (UMBOS) (Celsius) (Mvolts) (PPM) (N.T.UJ 0 NIA .5 GPM 1 7.71 1032 21.5 -51.3 1.64 LT.GREY 2.80 7.76 1070 21.9 -74.5 1.38 " ' 5.54 " 7.78 1084 22.3 -77,9 1.48 8.39 7.79 1084 22.2 -80.5 1.53 PURGE METHOD: DEDICATED WATERRA PUMP. ' SAMPLE METHOD: DEDICATED TUBING. D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 10.41' WELL INTEGRITY: CAP&SEAL ARE SECURE. LOCK INSTALLED. WELL LOCATION: ' REMARKS: WEATHER: OVERCAST/RAINY. WIND: NW5 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.175S GAL.STEEL DRUM OR 60 GAL POLYDRUM. INSTRUMENTATION: Y.S.I.3560 FLOWCELL Y.S.I.DISSOLVED OXYGEN METER SOLINIST SLOPE.METER THERMODINE 5808 P.I.D. KECK INTERFACE METER TURBIDITY METER #OF DRUMS ON SIGHT: WATER: SOIL: l