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DEL-TECH GEOTECHNICAL SUPPORT SERVICES <br />' MONITORING WELL FIELD LOG 2004 <br />' SAMPLE LOCATION/MW - 1 DATE: 7/19/2004 <br />' PROJECT NAME DARPETRO, INC ANALYSIS PERFORMED SEE CHAIN OF CUSTODY <br /> ADDRESS 749 E CHARTER WAY SAMPLE TIME 1727 <br /> CITY,STATE STOCKTON, CA SAMPLE CONTAINERS 4 VOA'S <br />' SITE CONTACT PRESERVATIVES HCL <br /> CONSULTANT CALIFORNIA GEOPHYSICAL LAB ANALYSIS BY SHERWOOD LABS <br />' PROJECT MANAGER JOHN CUSSEN MONUMENT FLUSH <br /> SAMPLER DEL-TECH WELL CASING MATERIAL PVC <br /> SIGNED WELL CASING DIA 4" / 06528 <br /> SAMPLE MEDI GROUNDWATER P I D READING/ODOR N/A FUEL <br />' TOP OF CASING ELEVATION MSL COLOR CLEAR <br /> DEPTH TO WATER feet 100th's 37 35 FEET CALC PURGE VOL 754 GAL <br /> DEPTH OF WELL feet 100th's 48 90 FEET TOTAL VOLUME PURGED 2262 GAL <br />' STANDING WATER COLUMN 1155 FEET I DEPTH OF PUMP 46 FEET <br /> FIELD PARAMETERS <br /> I. 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) (UmMHOS) (Ceisios} (Mvolts) (PPM) (N T U) <br /> 0 N/A 1 GPM 697 1875 25 7 -43 633 350 <br /> 754 it 697 1902 256 -10 037 115 <br /> 1508 it 695 1911 257 -9 040 64 <br /> 2262 693 1918 25 7 -2 043 38 <br /> i <br /> I <br /> PURGE METHOD DEDICATED WATERRA PUMP <br /> SAMPLE METHOD DEDICATED WATERRA PUMP <br /> D T W AFTER PURGE D T W AT SAMPLE TIME 37 90' <br /> WELL INTEGRITY CAP&SEAL ARE SECURE <br /> WELL LOCATION SEE SITE MAP <br /> REMARKS <br /> WEATHER CLEAR/HOT WIND NONE <br /> QUALITY CONTROL ALL PURGING EQUIPMENTAND SAMPLING EQ UIPMENT WAS CLEANED IN THE <br /> FIELD WITHA STEAMCLEANER&ALCONOX SOAP NEWNITRILE GLOVES <br /> CONTAINMENT D O T 17 SS GAL STEEL DRUM OR 60 GAL POLY DRUM <br /> INSTRUMENTATION Y S I 3560 FLOWCELL Y S I DISSOLVED OXYGEN METER <br /> I SOLINIST SLOPE METER THERMODINB 580B P I D <br /> KECK INTERFACE METER TURBIDITY METER <br /> #OF DRUMS ON SIGHT WATER 0 SOIL 0 <br />