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DEL-TECH GEOTECHNICAL SUPPORT SERVICES <br /> MONITORING WELL FIELD LOG 1998 <br /> SAMPLE LOCATION/MW - 1 DATE: 4/1/98 <br /> PROJECT NAME: VALLEY SHOWCASE. ANALYSIS PERFORMED. SEE CHAIN OF CUSTODY <br /> ADDRESS: FREMONT STREET SAMPLE TIME: 11:34 <br /> CITY STATE: STOCKTON,CA. SAMPLE CONTAINERS: 8 VOA'S/ 1 BLANK <br /> SITE CONTACT: PRESERVATIVES: HCL <br /> CONSULTANT: HUNTER&ASSOCIATES LAB.ANALYSIS BY: SHERWOOD I BSK <br /> PROJECT MANAGER BILLAUNTER MONUMENT: FLUSH <br /> SAMPLER: DEL TECH WELL CASING MATERIAL PVC <br /> SIGNED: WELL CASING DIA.: 4" / 0.6528 <br /> SAMPLE MED GROUNDWATER P.I.D.READING/ODOR: 0 NONE <br /> TOP OF CASING EL ATION: MSL COLOR: CLEAR <br /> DEPTH TO WATER: (feet,100th's) 6.60 FEET CALL.PURGE VOL.: 14.740224 GAL. <br /> DEPTH OF WELL: feeL100th's 29.18 FEET TOTAL VOLUME PURGED: 45 GAL. <br /> STANDING WATER COLUMN: 22.58 FEE DEPTH OF PUMP: TUBING FEET <br /> FIELD PARAMETERS <br /> TIME cAslNG DRAW PUMPING pH E. C. TEMP. O.R.P. bISSOLVE TURBIDITY <br /> VOLUME DOWN RATE OXYGEN COLOR <br /> PER PURGE (D.T.W.) (GPMlLPM) (units) (UmMFY0s) (CeL3us) (Mvolts) (PPM) (N.T.U.) <br /> 0 NIA 1 GPM 7.72 776 20.4 -12 N/A CLEAR <br /> 15 7.74 780 21 -5 " <br /> 30 7.73 782 20.8 -9 " <br /> 45 7.73 779 20.6 -12 " <br /> PURGE METHOD: CENRIFUGAL PUMP. <br /> SAMPLE METHOD: 1'STAINLESS STEIN,BAILER W/STAINLESS STEEL.WIRE LINE <br /> D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 6.68' <br /> WELL INTEGRITY: CAP&SEAL ARE SECURE. <br /> WELL LOCATION: SEE SITE MAP. <br /> REMARKS: GOOD RECHARGE. <br /> DUPLICATE SAMPLES WERE COLLECIED. <br /> WEATHER: OVERCAST SKIES. WIND: NW5 <br /> QUALITY CONTROL: ALL PURGING E UIPMENT AND SAMPLING EQUIPMENT WAS CLEANED IN THE <br /> FIELD WITHA STEAMCLEANER&ALCONOX SOAP. NEW NITRILE GLOVES. <br /> CONTAINMENT: D.O.T. 1755 GAL STEEL DRUM OR 60 GAL.POLY DRUM. <br /> INSTRUMENTATION: Y.S.I.3560 FLOWCELL Y.S.I.DISSOLVED OXYGEN METER <br /> SOLINIST SLOPE METER THERMODINE 580B P.I.D. <br /> KECK INTERFACE METER TURBIDITY Nffi-ER <br /> #OF DRUMS ON SIGHT: WATER: 5 SOIL: <br />