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DEL-TECH GEOTECHNICAL SUPPORT SERVICES <br /> MONITORING WELL.FIEF LOG I998 <br /> SAMPLE LOCATION/MW- 7 DATE: 11/13/98 <br /> PROJECT NAME: GEORGE'S SERVICE ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY <br /> ADDRESS: 1600 DURHAM FERRY ROAD SAMPLE TIME. 1553 <br /> CITY STATE: TRACY,CA SAMPLE CONTAINERS: 4 VOA'S & 1 B B <br /> SITE CONTACT: GEORGE OR MAE PRESERVATIVES: HCL <br /> CONSULTANT: GEOLOGICAL TECHNICS INC LAB.ANALYSIS BY: BSK LABS <br /> PROJECT MANAGER RAY OR MIKE MONUMENT: FLUSH <br /> SAMPLER: DEL-TECH WELL CASING MATERIAL PVC <br /> SIGNED: • WELL CASING DIA.: 2" 1 0 1632 <br /> SAMPLE MEDIA GROUNDWATER P.I.D.READING/ODOR: NIA NONE <br /> TOP OF CASING ELEVATION: MSL COLOR: CLEAR <br /> DEPTH TO WATER: (feeL100th's) 997 FEET CALL.PURGE VOL.: 191 GAL <br /> DEPTH OF WELL: feeL100th'S 2170 FEET TOTAL VOLUME PURGED: 6 GAL <br /> STANDING WATER COLUMN: 1173 FEET DEPTH OF PUMP: NIA FEET <br /> FIELD PARAMETERS <br /> . TIME CASING DRAW PUMPING pH E C TEMP. O.R P. LSSOLVEE TURBIDITY <br /> VoLUIvm DOWN RATE OXYGIEN COLOR <br /> PER PURGE (D T W) (GPMILPM) (units) (U-MHOS) (Cell—) (mvolts) (Ppm) (]N T U) <br /> 0 NIA 5 GPM 788 1770 221 1 -48 NIA CLEAR <br /> 2 791 1907 266 1 7 " <br /> 4 795 2000 284 48 " <br /> 6 794 1998 281 42IF <br /> " <br /> PURGE METHOD- CENTRIFUGAL PUMP <br /> SAMPLE METHOD F STAINLESS STEEL BAILER <br /> D.T W AFTER PURGE D T W AT SAMPLE TIME 10 88' <br /> WELL INTEGRITY, CAP&SEAL ARE SECURE AMERICAN LOCK IS INSTALLED <br /> WELL LOCATION SEE SITE MAP <br /> REMARKS VERY POOR RECHARGE. <br /> LARGE AMOUNT OF TREE ROOTS INSIDE OF WELL CASING. <br /> WEATHER CLEAR WIND NW IO <br /> QUALITY CONTROL ALL PURGING EQUIPMENT AND SAMPLING EQUIPMENT WAS CLF'�ANED IN THE <br /> FIELD WITHA STEAMCLEANER&ALCONOX SOAP NEW NITRILE GLOVES <br /> CONTAINMENT D O T 17 SS GAL.STEEL DRUM OR 60 GAL.POLY DRUM <br /> INSTRUMENTATION Y S 13560 FLOWCELL Y S I DISSOLVED OXYGEN METER <br /> SOLINIST SLOPE METER TfERMODINE 580B P I D <br /> KECK INTERFACE METER TURBIDTI'Y METER <br />