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DEL-TECH GEOTECHNICAL SUPPORT SERVICES MONITORING WELL FIELD LOG 20021 GLOBAL I.D. # T0607700605 SAMPLE LOCATION/MW- 9 DATE: 2/8/2002 PROJECT NAME: OLIVAREZ PROPERTY ANALYSIS PERFORMED: SEE C OF C ADDRESS: 300 S. CALIFORNIA STREET SAMPLE TIME: 10:48 CITY,STATE: STOCKTON,CA. SAMPLE CONTAINERS: 2 V.O.A.'s SITE CONTACT: NONE PRESERVATIVES: HCL CONSULTANT: FOOTHILL ENG. LAB.ANALYSIS BY: S14ERWOOD LABS PROJECT MANAGER IRV MONUMENT: FLUSH SAMPLER: DEL-TECH WELL CASING MATERIAL : PVC SIGNED: WELL CASING DIA. : 2" / 0.1632 SAMPLE MEDI GROUNDWATER P.T.D.READING 1 ODOR: NIA LT. FUEL TOP OF CASING ELE TION: MSL COLOR. BLACK TO GREY DEPTH TO WATER: feet.100th's 30.25 FEET CALL.PURGE VOL.: 12.11 GAL. DEPTH OF WELL: feet.100th's 104.48 FEET TOTAL VOLUME PURGED: 36 GAL. STANDING WATER COLUMN: 74.23 FEET DEPTH OF PUMP: TUBING FEET FIELD PARAMETERS TIME CUMULATIVE DRAW PUMPING pH E. C. TEMP. O.R.P. DISSOLVED TURBIDITY CASING VOLUME DOWN RATE OXYGEN COLOR PER PURGE (D.T.W.) (GPM/LPM) (units) (UMHOS) (Celsius) (Mvolts) (PPM) (N.T.U.) 0 NIA .5 GPM 7.08 1432 20.5 -296 N/A BLACK 12 " ti 7.02 I420 20.4 -291 LT.GREY 24 DRY 7.05 1290 20.1 -259 " 36 7.05 1223 19.9 -260 CLEAR PURGE METHOD: DEDICATED WATERRA PUMP. SAMPLE METHOD: DEDICATED WATERRA PUMP. D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 47.80' WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION: REMARKS: WEATHER: OVERCAST SKIES. WIND: NW5 QUALITY CONTROL: ALL PURGING EQUIPMENT AND SAMPLING EQUIPMENT WAS CLEANED IN THE FIELD WITH STEAMCLEANER&c ALCONOX SOAP. NEW NITRILE GLOVES CONTAINMENT: D.O.T. 17 55 GAL. STEEL DRUM OR 60 GAL.POLYDRUM. INSTRUMENTATION: Y.S.I.3560 FLOWCELL Y.S.I.DISSOLVED OXYGEN METER SOLINIST SLOPE METER THERMODINE 580B P.I.D. KECK INTERFACE METER TURBIDITY METER #OF DRUMS ON SIGHT: WATER: SOIL: