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DEL-TECH GEOTECHNICAL SUPPORT SERVICES MONITORING WELL FIELD LUG 1998 SAMPLE LOCATION/MW- 9 DATE: 7123198 PROJECT NAME: DELMONTE•STOCKTON ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: 110 FILBERT SAMPLE TIME: 16:00 CITY STATE: STOCKTON,CALIF. SAMPLE CONTAINERS: 4 V.O.A.'s/1 BLANK SITE CONTACT: RICHARD FISH PRESERVATIVES: HCL CONSULTANT: DELMONTE LAB.ANALYSIS BY: SHERWOOD/BSK LABS PROJECT MANAGER RICHARD FISH MONUMENT: FLUSH SAMPLER: DEL-TECH WELL CASING MATERIAL PVC SIGNED: 14AI im WELL CASING DIA.: 2" 0.1632 SAMPLE MEM7. GROUNDWATER P.I.D.READING I ODOR: N/A NONE TOP OF CASING EL ATION: MSI. COLOR: BROWN TO CLEAR DEPTH TO WATER: feet100th's) 47.95 FEET CALC.PURGE VOL.: 5.853984 GAL, DEPTH OF WELL: feet 100th's) 83.82 FEET TOTAL VOLUME PURGED: 18 GAL. STANDING WATER COLUMN: 35.87 FEET DEPTH OF PUMP: 72 FEET .. ...:_.:_:...............:........ ... FIELD PARAMETERS t TIME CASING DRAW PUMPING pH E.C. TEMP. O.R.P. ISSOLVE TURBIDITY VOLUME DOWN RATE OXYGEN COLOR PER PURGE (D.T.W.) (GPhWU no (volts} (U.AMOS) (Cerus) (Mvdts) (PPM) (N-T.U.) 0 NIA 2.0 GPM 7.15 653 22.6 -39 NIA CLEAR 6 7.13 657 21.7 -38 " 12 7.12 656 21.5 -37 " 18 7.12 658 21.4 -37 " PURGE METHOD: 2"GRUNDFOS SUBMERSIBLE PUMP SAMPLE METHOD: l'STAINLESS STEEL BAILER W!STAINLESS STEEL WIRE LINE D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 48.22' WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION: SEE SITE MAP. REMARKS: WEATHER: . CLEAR SKIES. WIND: NW5 _QUALITY CONTROL: ALL PURGING E UIPMENT AND SAMPLING EQUIPMENT WAS CLEANED IN THE FIELD MMA M"CLE4NER&ALCONOX SOAP. NEW NITRILE GLOVES. CONTAINMENT: D.O.T.1755 GAL.STEEL DRUM OR 60 GAL POLY DRUM. INSTRUMENTATION: Y.S.I.3560 FL.OWCELL Y.S.I.DISSOLVED OXYGEN NUM SOLI NIST SLOPE NMM THERRMODINE 580B P.I.D. KECK LNTWACE METM TURBIDITY METER a