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DEL-TECH GEOTECENICAL SUPPORT SERVICES <br /> MONITORING WELL FIELD LOG 2003 GLOBAL I.D. # T0607700605 <br /> SAMPLE LOCATION MW 1R DATE: 3/28/2003 <br /> . . .... ......... .. ...... <br /> PROJECT NAME: OLIVAREZ PROPERTY ANALYSIS PERFORMED: SEE C OF C <br /> ADDRESS: 300 S. CALIFORNIA STREET SAMPLE TIME: 12:17 <br /> STOCKTON,CA. SAMPLE CONTAINERS* <br /> CITY,STATE: 4 V.O.A.'s <br /> SITE CONTACT: NONE PRESERVATIVES: HCL <br /> CONSULTANT: FOOTHILL ENG. LAB.ANALYSIS BY: SHERWOOD LABS <br /> 7 :7!7m <br /> PROJECT MANAGER IRI MONUMENT: FLUSH <br /> SAMPLER: DEL-TECH WELL CASING MATERIAL PVC <br /> SIGNED: WELL CASING DIA. : 2" / 0.1632 <br /> SAMPLE MED15k\ GROUNDWATER P.I.D.READING/ODOR: NIA FUEL <br /> TOP OF CASING ELEVATION: MSL COLOR: LIGHT GREY <br /> DEPTH TOWATER: (feetlOfth's) . 31.96 FEET CALC.PURGE VOL.: 0.46 GAL. <br /> DEPTH OF WELL: (feetlooth's) 34,28 FEET TOTAL VOLUME PURGED: 1.5 GAL. <br /> STANDING WATER COLUMN: 2.32 FEET DEPTH OF PUMP: TUBING FEET <br /> sm . <br /> FIELD PARAMETERS <br /> TIME CUMULATIVE DRAW PUMPING pH E.C. — TEMP. O.R.P. DISSOLVED TURBIDITY <br /> CASING VOLUME DOWN RATE OXYGEN COLOR <br /> PERPURGE (D.T.W.) (GPWLPM) (units) (UMHOS) (Celsius) (Mvotts) (ppm) (N.T.U.) <br /> 0 N/A .5 GPM 7,00 1627 1 22.2 -168 0.43 LT. GREY <br /> 0.5 7.07 1633 22.1 -170 0.47 <br /> 1 7.20 1638 22 -173 0,49 <br /> 1.5 7.22 1640 22 -177 0.50 <br /> ........... <br /> .... ... ...... <br /> PURGE METHOD: DEDICATED WATERRA PUMP, <br /> SAMPLE METHOD: DEDICATED WATERRA PUMP. <br /> D.T. W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 32.37' <br /> WELL INTEGRITY: CAP&SEAL ARE SECURE. NEW LOCK INSTALLED.. <br /> WELL LOCATION: <br /> REMARKS: <br /> WEATHER: CLEAR SKIES. WIND: NW5 <br /> QUALITY CONTROL- ALL PURGING EQUIPMENTAND SAMPLING EQUIPMENT WAS CLEANED IN THE <br /> FIELD WITH A STEAMCLEANER&ALCONOX SOAP. NEW NITRILE GLOVES, <br /> CONTAINMENT: D.O.T. 17 55 GAL STEEL DRUM OR 60 GAL POLY DRUM. <br /> INSTRUMENTATION: Y.S.I.556 MULTIPROBE SYSTEM Y.S.I.DISSOLVED OXYGEN METER <br /> SOLINIST SLOPE METER THERMODINE 580B P.I.D. <br /> KECK INTERFACE METER TURBIDITY METER <br /> DRUMS ON SIGHT: WATER- <br />