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DEL-TECH GEOTECHNICAL SUPPORT SERVICES <br /> s <br /> MONITORING WELL FIELD LOG 1998 <br /> SAMPLE LOCATION/MW - 4 DATE: 7/17198 <br /> PROJECT NAME: VALLEY SHOWCASE. ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY <br /> ADDRESS; FREMONT STREET SAMPLE TIME: 12:11 <br /> CITY STATE: STOCKTON,CA. SAMPLE CONTAINERS: 3 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 DE -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 ELE ON: MSL COLOR: CLEAR <br /> DEPTH TO WATER: feeL1001h's) 8.29 FEET CALC.PURGE VOL.: 11.169408 GAL. <br /> DEPTH OF WELL: (feet.lWth's) 25.40 FEET TOTAL VOLUME PURGED: 34.5 GAL. <br /> STANDING WATER COLUMN: 17.11 FEET DEPTH OF PUMP: TUBING FEET <br /> FIELD PARAMETERS <br /> TIME CASING DRAW PUMPING PH E.C. TEMP. O.R.P DISSOLVEE TURBIDITY <br /> VOLUME DOWN RATE OXYGEN COLOR <br /> PER PURGE (D.T.W.) (GPWLPM) (units) (UmMHOS) (Celsius) (Mrolts) (PPM) (N.T.U.) <br /> 0 N/A 2 GPM 7.27 1001 22.8 -48 NIA CLEAR <br /> 11.5 7.23 1016 23.1 -51 " <br /> 23 7.26 1030 23.3 -50 " <br /> 34.5 7.27 1035 23.2 -5220�— " <br /> PURGE METHOD: PURGIiR PUMP. <br /> SAMPLE METHOD: 1'STAINLESS STEQ.BAILER W/STAINLESS STEEL WIRE LINE <br /> D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 8.46' <br /> WELL INTEGRI'T'Y: CAP&SEAL ARE SECURE, <br /> WELL LOCATION: SEE S11E MAP. <br /> REMARKS: <br /> WEATHER: CLEAR SKIES. WIPED: NW5 <br /> UALITY CONTROL: ALL PURGING EQ UIPMENT AND SAMPLING EQ UIPMENT WAS CLEANED IN THE <br /> FIELD WITH A STF"CLEANER do 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 FL.OWCELL Y.S.I.DISSOLVED OXYGEN METFR <br /> SOLINIsr SLOPE METER THEPMODINE 580B P.I.D. <br /> . KECK INTERFACE METER TURBIDITY METER <br />