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1 <br /> DEL-TECH GEOTECHNICAL SUPPORT SERVICES <br /> MONITORING WELL FIELD LOG 1998 <br /> SAMPLE LOCATION/MW - 3 DATE 411198 <br /> PROJECT NAME: VALLEY SHOWCASE. ANALYSTS PERFORMED: SEE CHAIN OF CUSTODY <br /> ADDRESS: FREMONT STREET SAMPLE TIME: 10:43 <br /> CITY STATE: STOCKTOR CA. SAMPLE CONTAINERS: 8 VOA'S/ 1 BLANK <br /> SITE CONTACT: PRESERVATIVES: HCL <br /> CONSULTANT: HUNTER&ASSOCIATES LAB.ANALYSIS BY: SHERWOOD/BSK <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: tJ GROUNDWATER P.I.D.READING/ODOR: 9 NONE <br /> TOP OF CASING ELEVATIO MSL COLOR: CLEAR <br /> DEPTH TO WATER: (feet.100th's 6.23 FEET CALC.PURGE VOL.: 14.896896 GAL. <br /> DEPTH OF WELL: feet.100th's) 29.05 FEET TOTAL VOLUME PURGED: 45 GAL, <br /> STANDING WATER COLUMN: 22.82 FEET DEPTH OF PUMP: TUBING FEET <br /> FIELD PARAMETERS <br /> TIME CASING DRAW PUMPING pH E.C. TEMP. O.R.P. DISSOLVE TURBIDITY <br /> VOLUME DOWN RATE OXYGEN COLOR <br /> PERPURGE (D.T.W.) (GPM/LPM) (unite) (UMMHOS) (cclaus) (Mvolts) (Ppm) (N.T.U.) <br /> 0 N/A 1 GPM 7.65 833 19.2 1 -10 NIA CLEAR <br /> 15 7.63 851 20.6 1 -32 " <br /> 30 7.60 85820.7 7 <br /> 18 " <br /> 45 7.60 858 20.4 -10 " <br /> PURGE METHOD: CENTRIFUGAL PUMP <br /> SAMPLE METHOD: 1'STAINLESS MM,BARER W/STAINLESS STEEL WIRE LINE <br /> D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 6.46' <br /> WELL INTEGRITY: CAP&SEAL ARE SECURE. <br /> WELL LOCATION: SEE SITE MAP. <br /> REMARKS: DUPLICATE SAMPLES WERE COLLECTED. <br /> WEATHER: OVERCAST SKIES. WIND: NW5 <br /> QUALITY CONTROL: ALL PURGING E UIPMENT AND SAMPLING EQUIPMENT WAS CLEANED IN THE <br /> FIELD Wll'HA STE"CLEANER do ALCONOX SOAP. NEW NITRILE GLOVES. <br /> CONTAINMENT: D.O.T. 1755 GAL.STEEL DRUM OR 60 GAL.POLY DR UM. <br /> INSTRUMENTATION: Y.S.I.3560 FLOWCELL Y.S.L DISSOLVED OXYGEN MET Eft <br /> SOLIMST SLOPE MSITR THERMODINE 580E P.I.D. <br /> KECK INTERFACE METER TURBIDITY METER <br />