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Disposal Of Purge Water <br /> Only very low levels of either metallic or organic contaminants have been detected in some of <br /> the wells down 'eat of WMU A. Because these levels are very low, there is not sufficient <br /> -reason to contaznerizc the purge water. Should the analytical results indicate a need to <br /> containerize,the following procedure will be used: <br /> Sample purge water generated during well.purging, and excess water generated during <br /> sampling, will be placed in a trailer mounted tank attached to- the sampling vehicle. <br /> • <br /> When the tank is h%-the groundwater will be pumped from the tank to an onsite Ieachate <br /> evaporation pond. .After the groundwater sampling round is completed the tank will be <br /> filled with approximately 100 gallons of water from the water truck fill station.. .This <br /> water will then be recirculated in the tank and pump to rinse the system. The rinse water <br /> will then be discharged to the leachate-evaporation pond.. <br /> Domestic Well <br /> The domestic well sampled (DW-9690) contains.a.submersiible pump with.-an in-line pressure <br /> tank and switch to activate the pump once-the.pressurc_4rops below a certain value:. T.he.sample <br /> point for DW 9690 was-a spigot directly attached to the pressure tank. Water samples were not <br /> collected directly from the-well bemuse the aboveground plumbing and submersible pumps - <br /> would need.to be removed_ Prior to collecting the-water samplcs, the pump was.allowed to run <br /> for approximately 30 minutes to purge the water system and draw groundwater from-the aquifer. <br /> During sampling, the pumps cycled on-off because the pumping rate exceeded the spigot <br /> discharge. <br /> LANDFILL GAS <br /> Landfill gas monitoring at Forward IandSU consists of monitoring gas in the ten interim gas <br /> probes and in buildings located at the landfill facility. <br /> 023-483949-FO 1\23 1 OR325 -11 MY 14,2040 <br /> M KkWelda.Inc. <br />