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DEL-TECH GEOTECHNICAL SUPPORT SERVICES <br /> MONITORING WELL FIELD LOG 2002 <br /> SAMPLE LOCATION/MW- 4 DATE: 12/20/2002 <br /> ' PROJECT NAME WESTERN OIL& SPREADING ANALYSIS PERFORMED SEE CHAIN OF CUSTODY <br /> ADDRESS HWY 99 FRONTAGE ROAD SAMPLE TIME <br /> CITY,STATE LODI,CA SAMPLE CONTAINERS 2 VOA'S/ I LITER <br /> SITE CONTACT- PRESERVATIVES HCL <br /> CONSULTANT D K BARBER& ASSOC LAB ANALYSIS BY SEQUOIA LAB/SAC <br /> PROJECT MANAGER DAN BARBER MONUMENT FLUSH <br /> SAMPLER. DEL-TECH WELL CASING MATERIAL PVC <br /> SIGNED Wwqvt WELL CASING DIA 2" / 01632 <br /> SAMPLE MEDIA GROUNDWATER P I D READING/ODOR N/A MUSTY <br /> ' TOP OF CASING ELEV ION MSL COLOR BROWN <br /> DEPTH TO WATER feet 100th's 51 04 FEET CALC PURGE VOL 118 GAL <br /> DEPTH OF WELL feet 100th's 5827 FEET TOTAL VOLUME PURGED 45 GAL <br /> ' STANDING WATER COLUMN 723 FEET DEPTH OF PUMP N/A FEET <br /> FIELD PARAMETERS <br /> MOW- <br /> TIME CUMULATIVE DRAW PUMPING pH E C TEMP ORP DISSOLVED TURBIDITY <br /> CASING VOLUME DOWN RATE OXYGEN COLOR <br /> PER PURGE (DTW) (GPM/LPM) (units) (UsMHOS) (Celsius) (Mvolts) (PPM) (N T U) <br /> 0 N/A 5 GPM 687 1062 182 133 086 BROWN <br /> — <br /> 1 5 it " 685 1018 185 134 092 " <br /> ' 3 It to684 1015 187 132 1 5 " <br /> 45 684 1000 189 134 12 <br /> AVERAGE 685 1023 75 18 5751 133 25 <br /> PURGE METHOD DEDICATED WATERRA INERTIA PUMP <br /> SAMPLE METHOD DEDICATED WATERRA INERTIA PUMP <br /> D T W AFTER PURGE D T W AT SAMPLE TIME 54 05' <br /> WELL INTEGRITY <br /> WELL LOCATION SEE SITE MAP <br /> ' REMARKS <br /> WEATHER OVERCAST/RAINING WIND NW 15 <br /> ' QUALITY CONTROL ALL PURGING EQUIPMENT AND 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 1 556 MULTIPROBE SYSTEM Y S I DISSOLVED OXYGEN METER <br /> SOLMIST SLOPE METER THERMOWNE 580B P I D <br /> KECK INTERFACE METER TURBIDITY METER <br />