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I The pump used to purge and sample the wells was thoroughly cleaned prior to each use by placing it into a <br /> . container of tap water with non-phosphate detergent and washing the outside of the pump The disposable <br /> Ihose was discarded after purging each well <br /> I Purge water from monitor well MW-9 has been temporarily stored in a 55-gallon drum staged at the Hunter <br /> Street Garage The holding tank will be transported to a new location pnor to the second quarter sampling <br /> I event The 55-gallon drum containing waste water form MW-9 will then be discharged to the holding tank <br /> Purge water from MW-2 and MW-2A was stored in 55-gallon drums in the garage located at 100 N Hunter <br /> Street and meets the requirements for transfer and disposal at a licensed treatment facility <br /> I The groundwater samples were analyzed b EPA Method 8020 for BTEX and b EPA Method 8015M for <br /> gT p Y Y Y <br /> TPH-G Groundwater sample analyses were performed by Sequoia Analytical Laboratory in Sacramento, <br /> California <br /> 3.0 MONITORING RESULTS SUMMARY <br /> E 3 1 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 in January 2004, groundwater elevations have decreased by an average of 0 66 <br /> ft <br /> • <br /> L\PR0JECTs\SANIOQ5H5A\I QO,RPT WPD 3 <br />