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DEL-TECH GEOTECHNICAL SUPPORT SERVICES <br /> MONITORING WELL FIELD LOG 1998 <br /> SAMPLE LOCATION/MW- 4 DATE: 411198 <br /> PROJECT NAME: VALLEY SHOWCASE. ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY <br /> ADDRESS: FREMONT STREET SAMPLE TIME: 11:07 <br /> CITY STATE: STOCKTOK CA. SAMPLE CONTAINERS: 8 VOA'S/ 1 BLANK <br /> SITE CONTACT: PRESERVATIVES: HCL <br /> CONSULTANT: HUNTER&ASSOCIATES LAB.ANALYSIS BY: SHERWOOD/WEST <br /> PROJECT MANAGER BILL HUNTER MONUMENT: FLUSH <br /> SAMPLER: DEL-TECH WELL CASING MATERIAL PVC <br /> SIGNED: WELL CASING DIA.: 4" / 0.6528 <br /> SAMPLE MEDIA. GROUNDWATER P.I.D.READING/ODOR: 0 NONE <br /> TOP OF CASING ELEV ON: MSL COLOR: CLEAR <br /> DEPTH TO WATER: (feet100th'0 6.79 FEET CALC.PURGE VOL.: 12.148608 GAL. <br /> DEPTH OF WELL: feet.100th's 25.40 FEET TOTAL VOLUME PURGED: 37.5 GAL. <br /> STANDING WATER COLUMN: 18.61 FEET DEPTH OF PUMP: TUBING FEET <br /> FIELD PARAMETERS <br /> . <br /> TIME CASING DRAW PUMPING pH E.C. TEMP. O.R.P. LSSOLVE TURBIDITY <br /> VOLUME DOWN RATE OXYGEN COLOR <br /> PER PURGE (D.T.W.) (GPM/LM (units) (U-MHOS) (CcWus) (Mvolts) (PPM) (N.T.U.) <br /> 0 N/A 1 GPM 7.27 972 20.4 -4 NIA CLEAR <br /> 12.5 7.28 963 20.6 -2 " <br /> 25 7.28 978 20.8 2 " <br /> 37.5 7.28 1000 20.9 3 " <br /> PURGE METHOD: PURGER PUMP. <br /> SAMPLE METHOD: 1'STAINLESS STEEL BAILER W/STAINLESS STEEL WIRE LINE <br /> D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 7.40' <br /> WELL INTEGRITY: CAP&SEAL ARE SECURE. <br /> WELL LOCATION: SFE SITE MAP. <br /> REMARKS: DUPLICATE SAMPLES WERE COLLECTED. <br /> WEATHER: OVERCAST SKIES. WIND: NW5 <br /> QUALITY CONTROL: ALL PURGING E UIPMENT AND SAMPLING E UIPMENT WAS CLEANED IN THE <br /> FIELD WrrHA STEAMCLEANER do ALCONOX SOAP. NEW NITRILE CLOVES. <br /> CONTAINMENT: D.O.T.17 55 GAL STEEL DRUM OR 60 GAL POLY DRUM. <br /> INSTRUMENTATION: Y.S.I.35W PLOWCE LL Y.S.T.DISSOLVED OXYGEN MMM <br /> SOLINIST SLOPE METER TIIERMODINE 580E P.I.D. <br /> KECK INTERFACE METER TURBIDITY METER <br />