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' Purge water from the monitor wells MW-3A, MW-4, MW-5, MW-6 MW-7 and MW-9 <br /> rom fprevious <br /> ( <br /> sampling events)was stored in the holding tank The water in this tank was sampled in October 2001 and <br />' deemed acceptable to be discharged to the sanitary sewer under a permit from the City of Stockton <br /> Department of Municipal Utilities The water was discharged during this sampling event Purge water from <br />' MW-2 and MW-2A was stored in 55-gallon drums in the garage located at 100 N Hunter Street Purge water <br /> from MW-2 and MW-2A will be disposed of at a licensed treatment facility <br />' The groundwater samples were analyzed by EPA Method 8020 for BTEX and by EPA Method 8015M for <br /> TPH-G Groundwater sample analyses were performed by Sequoia Analytical Laboratory in Walnut Creek, <br />' California <br /> 30 MONITORING RESULTS SUMMARY <br /> 31 GROUNDWATER PHYSICAL CHARACTERISTICS AND POTENTIOMETRIC <br />' SURFACE ELEVATIONS <br /> Table 3-1 presents a summary of groundwater parameters, depths and elevations Since groundwater <br />' elevations were last taken on October 11, 2001, groundwater elevations have increased by an average of <br /> 0 09 feet <br />' Table 3-1 <br /> Groundwater Parameter, Depth, and Elevation Data <br />' San Joaquin County Human Services Agency <br /> February 2002 <br />' Top of Depth <br /> Conduc- Casing to February 5, 2001 <br />' Temp tivfty Elevation Water Water Elevation <br /> Well (°C pH MHOS (ft MSL) (ft) ft MSL <br /> MW-2 23 33 716 1 48 NM 2810 NM <br /> MW-2A 2426 752 0 790 1191 28 10 -16 19 <br /> MW-3A NM 763 2075 1123 2760 -1637 <br /> MW-4 NM 787 0 862 1346 2910 -1564 <br /> MW-5 NM 775 0 442 1283 2699 -14 16 <br /> MW-6 NM 750 0 007 13 17 2799 -1482 <br /> MW-7 NM 781 0 682 13 14 2980 -1666 <br /> MW-8 NM 763 2075 1376 30 19 -1643 <br /> I <br /> 1APR01EC-MSANJWHSA\IQ0IRFT WAD 3 <br />