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a DEL-TECH GEOTECID WAL SUPPORT SERVICES MONITORING WELL FIELD LOG 2003/GLOBAL I.D. #T0607700605 77 SAMPLE LOCATION /MW 5 DATE: 3/25/2003 PROJECT NAME: OLIVAREZ PROPERTY ANALYSIS PERFORMED: SEE C OF C ADDRESS: 300 S. CALIFORNIA STREET SAMPLE TIME: 12:30 CITY,STATE: STOCKTON,CA. SAMPLE CONTAINERS: 4 V.O.A.'s SITE CONTACT: NONE PRESERVATIVES: HCL CONSULTANT: FOOTHILL ENG. LAB.ANALYSIS BY: SHERWOOD LABS PROTECT MANAGER IRV MONUMENT: FLUSH SAMPLER: DEL-TECH WELL CASING MATERIAL PVC SIGNED: � .i WELL CASING DIA. : 2" 1 0.1632 SAMPLE MEDT GROUNDWATER P.I.D.READING/ODOR: NIA LIGHT FUEL TOP OF CASING ELE ATION: MSL COLOR: GREY DEPTH TO WATER: (feet lOOth's) 33.10 FEET CALC.PURGE VOL.: 11.07 GAL. DEPTH OF WELL: (feet.]00th's) 100.97 FEET TOTAL VOLUME PURGED: 33.21 GAL. STANDING WATER COLUMN: 67.87 FEET DEPTH OF PUMP: 98 FEET FIELD PARAMETERS TIME CUMcr1.,ATIVE DRAW PUMPING pH E.C. TEMP, O.R.P. DISSOLVED TURBIDITY CASING VOLUME DOWN RATE OXYGEN COLOR PER PURGE (D.T.W.) (GPM/I.PM) (units) (UMHOS) (Ceisins) (Mvolts) (PPM) (N.T.U.) 0 NIA 1 GPM 7.53 1276 21.9 -180.0 0.63 GREY 11.07 7.77 1293 21.8 -185.0 0.47 " 22.14 7.80 1341 21.7 -190.0 0.33 " 33.21 7.87 1345 21.7 -192.0 0.31 " PURGE METHOD: DEDICATED WATERRA PUMP. 'SAMPLE METHOD: DEDICATED WATERRA PIMP, D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 42,58' WELL INTEGRITY: CAP&SEAL ARE SECURE. NEW LOCK INSTALLED., WELL LOCATION: REMARKS: WEA'T'HER: CLEAR SKIES. WIND: NW5 QUALITY CONTROL: ALL PURGING EQUIPMENT AND SAMPLING EQUIPMENT WAS CLEANED IN THE FIELD WITH A STEAMCLEANER&ALCONOX SOAP. NEW NITRILE GLOVES, CONTAINMENT: D.D.T. 17 55 GAL.STEEL DRUM OR 60 GAL.POLY DR UM. INSTRUMENTATION: Y.S.I.556 MULLTIPROBE SYSTEM Y.S.I.DISSOLVED OXYGEN METER SOLINIST SLOPE METER THERMODINE 580E P.I.D. KECK INTERFACE METER TURBIDITY METER #OF DRUMS ON SIGHT: WATER: SOIL.