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<br />Since it is economically not <br />taminants in community water <br />that the NPDES Permit use the <br />Ralston Creek. <br />Res once <br />feasible to remove these con- <br />treatment plants, it is essential <br />limits on the discharge to <br />No response required as this is covered by the NPDES permit <br />for the mine. Due to high background radiation and the fact <br />that many radionuclides contribute to gross alpha concentra- <br />tions, gross alpha is a poor method for regulatory discharge <br />of radionuclides. <br />Comment <br />i <br />ch, Division Direc <br />i <br />11-2.1 - On pages 3-8 "Underground Pond Storage" is mentioned. It See Sec. 3.1 <br />would seem advisable to elaborate on this specific portion of <br />the system. <br />Response <br />This portion of the system is no longer used. <br />Comment <br />11-2.2. Section 5.2 should be expanded relative to the sorter <br />plant and treatment plant. This is requested, as the report <br />indicates there should be no problem due to spillage, yet a See Sec. 5.2 <br />loss of more than 9,000 gallons from the thickener could <br />reach Ralston Creek. In essence, the spill program sounds <br />at least partially like an impromptu system rather than an <br />existing containment system. <br />Res onse <br />Refer to section 5-2. <br />Comment <br />COLORADO DEPARTMENT OF HIGHWAYS <br />Division of Trans ortation Plannin <br />Harvey R. Atchison, Director; Attn: John E. Conger) <br />13-1.1. CARRYOUT OF CONTAMINATED MUD AND DIRT - We would suggest <br />the development of monitoring procedures or protective See Attachment <br />• measures to eliminate vehicle carryout of contaminated mud <br />and dirt from the mine or mill sites. Traffic leaving the <br />CDH-2 <br />