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. DEL-TECH GEOTECHNICAL SUPPORT SERVICES MONITORING WELL FIELD LOG 1998 SAMPLE LOCATION/MW - 6 DATE: 8/10/98 PROJECT NAME: INDEPENDENT TRUCKING. ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: 1145 WEST CHARTER WAY SAMPLE TIME: 11:59 CITY,STATE: STOCKTON,CA. SAMPLE CONTAINERS: 4 CONTAINERS& 1 B.B. SITE CONTACT: PRESERVATIVES: HCL CONSULTANT: HUNTER&ASSOCIATES LAB.ANALYSIS BY: SHERWOOD/WEST PROJECT MANAGER BILL HUNTER MONUMENT: FLUSH SAMPLER: DEL-TECH WELL CASING MATERIAL PVC SIGNED: WELL CASING DIA.: 2" / 0.1632 SAMPLE ME GROUNDWATER P.I.D.READING/ODOR: N/A NONE TOP OF CASING EL ATION: MSL COLOR: GREY TO LIGHT GREY DEPTH TO WATER: feet100th's 15.19 FEET CALC.PURGE VOL.: 3.099168 GAL. DEPTH OF WELL: (feet100th's) 34.18 FEET TOTAL VOLUME PURGED: 10.5 GAL. STANDING WATER COLUMN: 18.99 FEET I DEPTH OF PUMP: 33 FEET FIELD PARAMETERS • TIME CASING I DRAW I PUMPING pH E.C. TEMP. O.R.P. LSSOLVE TURBIDITY VOLUME DOWN RATE OXYGEN COLOR PERPURGE (D.T.WJ (GPM/LPM) (units) (MSMHOS) (Cewm) (Mvolts) (PPM) (N.T.UJ 11:41 0 N/A 1 GPM 7.26 1408 22.6 -128 N/A GREY 11:43 3.5 7.15 1395 21.3 -153 [A GREY 11:46 7 7.14 1399 21.1 -191 " 11:49 10.5 7.14 1399 21.2 -234 " PURGE METHOD: PURGER PUMP. SAMPLE METHOD: Y STAINLESS STEEL BAILER W/STAINLESS STEEL WIRE LINE D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 15.88' WELL INTEGRITY: CAP&SEAL ARE SECURE. MONUMENT BROKEN. WELL LOCATION: SEE SITE MAP. REMARKS: WEATHER: CLEAR SKIES WIND: UALITY CONTROL: ALL PURGING E UIPMENT AND SAMPLING EQUIPMENT WAS CLEANED IN THE FIELD WITH A STEAMCLEANER&ALCONOX SOAP. NEW NITRILE GLOVES. CONTAINMENT: D.O.T.1755 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 RID,,- r • KECK INTERFACE METER TURBIDITY METER 2 998