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DEL-TECH GEOTECHNICAL SUPPORT SERVICES MONITORING WELL FIELD LOG 1998 SAMPLE LOCATION/MW - 6 DATE: 7122198 PROJECT NAME: DELMONTE-STOCKTON ANALYSIS PERFORMED: SEB CHAIN OF CUSTODY ADDRESS: 110 FILBERT SAMPLE TIME: 14;00 CITY STATE: STOCKTON,CALIF. SAMPLE CONTAINERS: 4 V.O.A.'s/1 BLANK SITE CONTACT: RICHARD FISH PRESERVATIVES: HCL CONSULTANT: DELMONTE LAB.ANALYSIS BY: BSK/WEST LABS PROJECT MANAGER RICHARD FISH MONUMENT: FLUSH SAMPLER: DEL-TECH WELL CASING MATERIAL PVC SIGNED: WELL CASING DIA.: 2" / 0.1632 SAMPLE MEDIA. GROUNDWATER P.I.D.READING/ODOR: 0 NONE TOP OF CASING ELEV ON: MSL COLOR: CLEAR DEPTH TO WATER: feet.100th's) 48.05 FEET CALL.PURGE VOL.: 6.76464 GAL. DEPTH OF WELL: feeL100tWs 89.50 FEET TOTAL VOLUME PURGED: 21 GAL. STANDING WATER COLUMN: 41.45 FEET DEPTH OF PUMP: 84 FEET FIELD PARAMETERS :......:...:.......:.....:.. ::.:.. ...:........::.....:.::.,:.:: ::.. l TIME CASING DRAW SUBMERS pH E.C. TEMP. O.R.P. DISSOLVETURBIDITY VOLUME DOWN RATE OXYGEN COLOR PERPURGE (D.T.W.) (GPMII") (units) (USMHOS), (cew-) (Mvolts) (PPM) (N.T.U.) 0 NIA 1.5 GPM 7.32 647 23.6 7 N/A CLEAR 7 7.27 605 21.5 0 " 14 " 7.34 604 21.2 -3 21 7.29 600 21.2 -3 PURGE METHOD: 2"GRUNDFOS SUBMERSIBLE PUMP. SAMPLE METHOD: 1'STAINLESS STEM BAILI R W/STAINLESS STEEL WIRE LINE D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 48.59' WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION: SEE SITE MAP. REMARKS: WEATHER: CLEAR SKIES. vam: NW5 UALITY CONTROL: ALL PURGING E UIPMENT AND SAMPLING EQUIPMENT WAS CLEANED IN THE FIELD WITH A STEAMCLEANER do ALCONOX SOAP. NEW NITRILE GLOVES. CONTAINMENT: D.O.T. 1755 GAL STEEL DRUM OR 60 GAL POLY DRUM. INSTRUMENTATION: Y.S.I.3560 FWWCELL Y.S.I.DISSOLVED OXYGEN METER SOLINIST SLOPE MSTIIt THERMODINE 580B P.I.D. + KECK INTERFACE METER TURBIDITY METER