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1 <br />' DEL-TECH GEOTECHNICAL SUPPORT SERVICES <br /> MONITORING WELL FIELD LOG 2006 <br /> SAMPLE LOCATION/MW- 19 DATE 3/31/2006 <br />' PROJECT NAME FRONTIER TRUCKING ANALYSIS PERFORMED SEE CHAIN OF CUSTODY <br /> ADDRESS LARCH ROAD SAMPLE TIME 1219 <br /> CITY STATE TRACY CA SAMPLE CONTAINERS 3 V O A'S <br /> SITE CONTACT PRESERVATIVES HCL <br /> CONSULTANT BIOPHYSICAL ASSESSMENTS LAB ANALYSIS BY <br />' PROJECT MANAGER DAVE/WINDY MONUMENT FLUSH <br /> SAMPLER DEL-TECH 1 DON LIGHT WELL CASING MATERIAL PVC <br /> SIGNED WELL CASING DIA 2" / 0 1632 <br /> SAMPLE MEDIA GROUNDWATER P I D READING/ODOR NIA NONE <br />' TOP OF CASING ELEVATION MSL COLOR BROWN <br /> DEPTH TO WATER feet 100th's 1143 FEET CALC PURGE VOL 1 33 GAL <br /> DEPTH OF WELL feet IOOth's 19 55 FEET TOTAL VOLUME PURGED 398 GAL <br /> STANDING WATER COLUMN 812 FEET DEPTH OF PUMP 18 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/LPM) (units) (UMHOS) Celsius Mvolts) (PPM) N T U <br /> 0 N/A 1 0 GPM 682 4654 199 672 1 042 BROWN <br /> 1 33 f1 681 4588 191 692 047 <br /> 265 681 5050 194 683 046 " <br /> 398 679 5047 193 694 037 " <br /> PURGE METHOD CENTRIFUGAL PUMP <br /> SAMPLE METHOD DEDICATED TUBING <br /> D T W AFTER PURGE D T W AT SAMPLE TIME 1 150' <br /> WELL INTEGRITY CAP&SEAL ARE SECURE <br /> WELL LOCATION SEE SITE MAP <br /> REMARKS <br /> WEATHER OVERCAST/COLD WIND <br /> UA LITY 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 DRUMOR 60 GAL POLYDRUM <br /> INSTRUMENTATION Y S 1 556 MULTIPROBE Y S I DISSOLVED OXYGEN METER <br /> SOLINIST SLOPE METER THERMODINE 580E P i D <br /> KECK INTERFACE METER TURBIDITY METER <br /> • <br />