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A S S O C I A T E S I N C <br /> Monitoring well MW1 was purged a minimum of three well volumes and until the stabilization <br /> of electric conductivity, pH, and temperature was observed Subsequent to purging, groundwater <br /> was sampled and transferred to appropriate sample containers, using a clean, disposable bailer <br /> with a bottom-emptying device to reduce volatilization Sample containers were then labeled <br /> with sample identification, placed on ice, and shipped under chain-of-custody to Sequoia <br /> Analytical Field development/purge logs are presented in Attachment 1 <br /> Laboratory Analysis <br /> The groundwater sample from well MWI was analyzed by Sequoia Analytical for total <br /> petroleum hydrocarbons as gasoline (TPHg), benzene, toluene, ethylbenzene, and xylenes <br /> (BTEX), by EPA Method 8015/8020, and oxygenates fuel additives by EPA method 8260 <br /> Laboratory Results <br /> Only methyl tert-butyl ether (MTBE) was detected above the laboratory method detection limits <br /> The reported MTBE concentration is 14 parts per billion (ppb) No other constituents were <br /> detected <br /> • Analytical results are summarized in Table 2 Laboratory data sheets and chain-of-custody <br /> documentation are provided in Attachment 2 <br /> WATER AND SOIL DISPOSAL <br /> Soil and water generated during February 1999 on-site well installation/sampling activities were <br /> transported off-site for treatment/disposal <br /> On May 27, 1999, 130 gallons of stored water was transported by Clearwater Environmental to <br /> Alviso Independent Oil's facility in Alviso, California <br /> On August 16, 1999, four (4) drums of soil were transported by ATC to Forward Landfill located <br /> in Stockton, California <br /> Copies of the Non-Hazardous Waste Manifests, for both water and soil, are included in <br /> Attachment 3 <br /> w 117292 0001 Veporu\3 qmr 1999 doe 2 <br />