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i • DEL-BCH GEOTECHNICAL SUPPORT SERVICES MONITORING WELL FIELD LOG 1998 r SAMPLE LOCATION 1 MW - 1 DATE: 4/1/98 PROJECT NAME: VALLEY WHOLESALE DRUG. ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: FREMONT STREET SAMPLE TIME: 13:50 CITY STATE: STOCKTON,CA. SAMPLE CONTAINERS: 4 VOA'S/ 1 BLANK SITE CONTACT: I PRESERVATIVES: HCl. CONSULTANT: HUNTER&ASSOCIATES LAB.ANALYSIS BY: SHERWOOD I WEST PROJECT MANAGER BILL HUNTER MONUMENT: FLUSH SAMPLER: DEL-TECH WELL CASING MATERIAL PVC SIGNED: WELL CASING DIA.: 2" / 0.1632 SAMPLE MEDIA GROUNDWATER P.I.D.READING 1 ODOR: 708 GAS TOP OF CASING ELEVATION: MSL COLOR: CLEAR DEPTH TO WATER: (feet.100th's) 6.05 FEET CALC.PURGE VOL.: 3.12528 GAL. DEPTH OF WELL: (feet.100th's) 25.20 FEET TOTAL VOLUME PURGED: 10.5 GAL. STANDING WATER COLUMN: 19.15 FEET DEPTH OF PUMP: TUBING FEET FIELD PARAMETERS TIME CASING DRAW PUMPING pH E.C. TEMP. O.R.P. PISSOLVETURBIDITY VOLUME DOWN RATE OXYGEN COLOR PERPURGE (DT.W.) (GPM/UM) (uNts) I (U=MHOS) (Celsius) (Mvolts) (PPM) (N.T.U.) 0 N/A I GPM 7.02 2030 21.1 -209 NIA CLEAR 3.5 7.06 1906 21.6 -200 " 7 " " 7.05 1841 22 -200 10.5 7.07 1811 21.9 -188 " PURGE METHOD: CENRIFUGAL PUMP. SAMPLE METHOD: 1'STAINLESS STEEL BAILER W/STAINLESS STEEL WIRE LINE D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 6.62 WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION: SEE SITE MAP. REMARKS: GOOD RECHARGE. WEATHER: OVERCAST SKIES. WIND: NW5 QUALITY CONTROL: ALL PURGING EQ UIPMENT AND SAMPLING EQ UIPMENT WAS CLEANED IN THE FIELD WITHA STEAMCLEANER&ALCONOX SOAP. NEW NITRILE GLOVES. CONTAINMENT: D.O.T. 17 55 GAL.STEEL DR UM OR 60 GAL.POLY DR UM. INSTRUMENTATION: Y.S.I.3560 FLAWCEIL Y.S.I.DISSOLVED OXYGEN Nt= E SOUNIST SLOPE MEM THERMODINE 580E P.I.D. KBCK INTERFACE METER TURBIDfPY METER #OF DRUMS ON SIGHT: WATER: 4 SOIL: