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DEL -TECH GEOTECHNICAL SUPPORT SERVICES MONITORING WELL FIELD LOG 2003 SAMPLE LOCATION MW 2 DATE: 9/2/2003 PROJECT NAME,: VALLEY WHOLESALE DRUG ANALYSIS PERFORMED. SEE CHAIN OF CUSTODY ADDRESS: FREMONT STREET SAMPLE TIME: 11:36 CITY,STATE: STOCKTON,CA. SAMPLE CONTAINERS: 4 V.O.A,'S SITE CONTACT: PAUL SOUVA PRESERVATIVES. HCL CONSULTANT: GEOLOGICAL TECHNICS LAB.ANALYSIS BY: SBERWOOD LABS PROJECT MANAGER: ERIC PRICE MONUMENT: FLUSH SAMPLER- DEL-TECH WELL CASING MATERIAL PVC SIGNED-. WELL CASING DIA. : 211 / 0732 --- SAMPLE NW,,DPA: GROUNDWATER P.I.D.READING/ODOR: -N/A NONE TOP OF CASING ELEVATION: MSL COLOR. LIGHT BROWN TO CLEAR DEPTH TO WATER- (feet.looth's) 8,51 FEET CALC.PURGE VOL.: 2.75 GAL, DEPTH OF WELL: (fect.100tli's) 25.38 FEET TOTAL VOLUME PURGED- 8.26 GAL. STANDING WATER COLUMN- 16,87 FEET I DEPTH OF PUMP: 23 FEET FIELD PARAMETERS ...... ..... TIME 1 CUMULATIVE DRAW PUMPING pH E.C. 'TEMP. O.R.P. DISSOLVED TURBIDITY CASING VOLUME DOWN RATE OXYGEN COLOR PERPURGE (D.T.W.) (GPWLPM) (units) (UMI - I O {Celsius{Celsius) (mv olts) (ppm) (N.T.U.) 0 NIA .5 GPM 7.88 1057 21.2 1 -90.2 0.43 LT. BROWN 2.75 7.90 1031 21.1 -793 0.73 CLEAR 5.51 7.90 1025 21 -70.5 0.67 8.26 7.90 1026 21 -66.1 0.65 PURGE METHOD. DEDICATED WATERRA PUMP. SAMPLE METIIOD- DEDICATED TUBING. D.T. W.AFI ER PURGE: D.T.W,AT SAMPLE TIME: 14,06' WELL INTEGRITY: CAP&SEAL SECURE. LOCK INSTALLED. W ELL LO CAT ION: REMARKS. WEATJTLR: CLEAR SKIES. WIND: NW5 QUALITY CONTROL: ALL PURGING EQUIPMENTAND SAMPLING EQUIPMENT WAS CLEANED IM 7-HE FIELD WITH A STEAUCLEANER&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 ME'17--R SOLINIST SLOPE MP-TER THERIMODINE 580B P.I.D. KECK INTERFACE METER TURBIDITY METER #OF DRUMS ON SIGHT: WATER: SOUL: