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"flushed" over a period of several years, the pH of the water should <br />• continue to rise to a more neutral level. Also, as water fills that old <br />workings, the oxidation process with the coal should be minimized or, <br />hopefully, eliminated. <br />Following completion of mining by Peerless Resources, Inc. in the <br />planned Coal Gulch Mine, the portals will be sealed with concrete cinder <br />block retaining walls. Pipes will be left at the top of the entries to <br />allow for both possible methane discharge or subsurface water discharge. <br />As subsurface water accumulates behind the seals of the closed Coal <br />Gulch Mine, the chance for oxidation with the pyritic sulfur in the coal <br />should be minimized. In fact, over time as the old workings are filled <br />with subsurface water, no or only minor amounts of oxygen should be <br />present. Subsequently, Peerless Resources, Inc. does not anticipate any <br />long-term problem with low pH drainage from the closure of its planned <br />operation. <br /> <br />n <br />naR o d uses <br />2.ay- f8r <br />