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+A, • DEL-TECH GEOTECHNICAL SUPPORT SERVICES MONITORING WELL FIELD LOG 2001 SAMPLE LOCATION/ MW- 9 DATE: 9119101 PROJECT NAME: OLIVAREZ PROPERTY ANALYSIS PERFORMED: SEE C OF C ADDRESS: 300 S.CALIFORNIA STREET SAMPLE TIME: 11:22 CITY,STATE: STOCKTON,CA. SAMPLE CONTAINERS: 2 V.O.A.'s SITE CONTACT: NONE PRESERVATIVES: HCL CONSULTANT: FOOTHILL ENG. LAB.ANALYSIS BY: SHERWOOD LABS PROJECT MANAGER IRV MONUMENT: FLUSH SAMPLER: DEL-TECH WELL CASING MATERIAL : PVC SIGNED: WELL CASING DIA. : 2" / 0.1632 SAMPLE MEDI GROUNDWATER P.I.D. READING/ODOR: NIA LT. FUEL TOP OF CASING ELEVATION: MSL COLOR: CLEAR TO GREY DEPTH TO WATER: feet.100th's 29.98 FEET CALC.PURGE VOL.: 12.16 GAL. DEPTH OF WELL: feet.100th's 104.48 FEET TOTAL VOLUME PURGED: 36 GAL. STANDING WATER COLUMN: 74.50 FEET I DEPTH OF PUMP: TUBING FEET FIELD PARAMETERS '. .. TIME CUMULATIVE DRAW PUMPING pHE. C. TEMP. O.R.P. DISSOLVED TURBIDITY CASING VOLUME DOWN RATE OXYGEN COLOR PER PURGE (D.T.W.) (GPMILPM) (units) (UMHOS) (Celsius) (Mvolts) (PPM) (N.T.U.) 0 NIA .5 GPM 7.60 1386 21.3 -193 NIA CLEAR 12 " " 7.76 1523 21.6 -268 " GREY 24 7.87 1552 21.8 -271 Pi " 36 7.82 1558 21.7 -278 " PURGE METHOD: DEDICATED WATERRA PUMP. SAMPLE METHOD: DEDICATED WATERRA PUMP. D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 44.17' WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION• REMARKS: WEATHER: CLEAR SKIES. WIND: NW5 QUALITY CONTROL: ALL PURGING E UIPMENT AND SAMPLING EQ UIPMENT WAS CLEANED IN THE FIELD WITH A STEAMCLEANER&ALCONOX SOAP. NEW NITRILE GLOVES. CONTAINMENT: D.O.T. 17 55 GAL.STEEL DRUM OR 60 GAL. POLY DRUM. INSTRUMENTATION: Y.S.I.3560 FLOWCELL Y.S.I.DISSOLVED OXYGEN METER SOLINIST SLOPE METER THERMODINE 5808 P.I.D. KECK INTERFACE METER TURBIDITY METER #OF DRUMS ON SIGHT: WATER: SOIL: I