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DEL-TECH GEOTECHNICAL SUPPORT SERVICES <br /> ' MONITORING WELL FIELD LOG 2002 <br /> SAMPLE LOCATION/ MW - 6 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/ 1 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 WELL CASING DIA 2" / 0 1632 <br /> SAMPLE MEDIA GROUNDWATER P I D READING/ODOR N/A NONE <br /> ' TOP OF CASING ELE TION MSL COLOR BROWN <br /> DEPTH TO WATER (feet 100th's) 5309 FEET CALC PURGE VOL 159 GAL <br /> DEPTH OF WELL feet 100th's 6285 FEET TOTAL VOLUME PURGED 45 GAL <br /> STANDING WATER COLUMN 976 FEET I DEPTH OF PUMP N/A FEET <br /> FIELD PARAMETERS <br /> TIME CUMULATIVE DRAW PUMPING pH E C TEMP ORP DISSOLVED TURBIDITY <br /> CASING VOLUME DOWN RATE OXYGEN COLOR <br /> PER PURGE (D T W) (GPM/LPIII) (units) (UE <br /> (Celsus) (Mvalts) (PPM) (N T U) <br /> 0 N/A 5 GPM 681 1055 186 114 086 BROWN <br /> 15 " to 674 1054 188 122 07 It <br /> 3 if 673 1063 189 125 063 LT BRN <br /> 45 672 1067 189 127 061 " <br /> ' AVERAGE <br /> PURGE METHOD DEDICATED WATERRA INERTIA PUMP <br /> ' SAMPLE METHOD DEDICATED WATERRA INERTIA PUMP <br /> D T W AF'T'ER PURGE D T W AT SAMPLE TIME 54 47' <br /> WELL INTEGRITY <br /> WELL LOCATION SEE SITE MAP <br /> ' REMARKS <br /> WEATHER OVERCAST/RAINING WIND NW I5 <br /> QUALITY CONTROL ALL PURGING E UIPMENT 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 POLYDRUM <br /> INSTRUMENTATION Y S 1556 MULTIPROBE SYSTEM Y S I DISSOLVED OXYGEN METER <br /> SOLMIST SLOPE METER THERMODINE 580B P I D <br /> KECK INTERFACE METER TURBIDITY METER <br />