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DEL-TECH GEOTECHNICAL SUPPORT SERVICES MONITORING WELL FIELD LOG 2001/GLOBAL LD. # T0607700605 SAMPLE LOCATION 1 MW- 3 DATE: 12/14/2001 PROJECT NAME: OLIVAREZ PROPERTY ANALYSIS PERFORMED: SEE C OF C ADDRESS: 300 S. CALIFORNIA STREET SAMPLE TIME: 8:38 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: L DEL-TECH WELL CASING MATERIAL : PVC SIGNED: WELL CASING DIA. : 2" / 0.1632 SAMPLE MEDIGROUNDWATER P.I.D.READING I ODOR: N/A LT. FUEL TOP OF CASING ELE ATION: MSL COLOR: LIGHT BROWN TO CLEAR DEPTH TO WATER: feet.100th's 29.72 FEET CALC. PURGE VOL.: 4.60 GAL. DEPTH OF WELL: feet.100th's 57.90 FEET TOTAL VOLUME PURGED: 15 GAL. STANDING WATER COLUMN: 28.18 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 I (D.T.W.) (GPMILPM) l (units) (UMHOS) (Celsius) (Mvolts) (PPM) (N.T.U.) 0 N/A .5 GPM 7.33 908 21.2 2 NIA LT. BRN. 5 " " 7.27 918 21.5 -5 it of 10 7.22 918 21.6 -7 itCLEAR 15 " " 7.16 894 21.3 4 or to PURGE METHOD: DEDICATED WATERRA PUMP. SAMPLE METHOD: DEDICATED WATERRA PUMP. D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 34.44' WELL INTEGRITY: CAP&SEAL ARE SECURE, WELL LOCATION• REMARKS: WEATHER: OVERCAST SKIES. WIND: NW5 QUALITY CONTROL: ALL PURGING E UIPMENT AND SAMPLING EQUIPMENT WAS CLEANED IN THE FIELD WITH A STEA MCLEANER&ALCONOX SOAP. NEW NITRILE GLOVES. CONTAINMENT: D.O.T. 17 55 GAL. STEEL DRUM OR 60 GAL.POLY DR UM. INSTRUMENTATION: Y.S.I.3560 FLOWCELL Y.S.I.DISSOLVED OXYGEN METER SOLINIST SLOPE METER THERMODME 5808 P.I.D. KECK INTERFACE METER TURBIDITY METER #OF DRUMS ON SIGHT: WATER: SOIL: