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-= TerraMatrix <br />Ir,,..r, 6 Envlrorrrse~ttal s:rvlc.. <br />~~ <br />1475 Pine Grove Road • PO Box 774018 <br />Steamboat Sprlrps, Cobredo 80477 <br />303-879b21;0 • fax 303-879.9048 <br />February 8, 1994 <br />Mr. Jon Kubic <br />Colorado Department of Health <br />Water Qualitq Control Division <br />4300 Cherry Creek Drive South <br />Denver, Colorado 80222 <br />Re: Kerr Coal Company (Permit No. CO.0043567) • WET Testing Results <br />Deu Mr. Kubic <br />Via: U.S. Mail <br />In compliance with appliable provisions (Part VLA.3.d) of Permit CO-0043567, accompanying this <br />transmi[tal are the results of the WET testing performed by Chadwick 8t Assodates, Inc on the initial <br />and sole mine water discharge from Discharge Point 002. It should be noted that although the permit <br />wu structured to provide the flexibility necessary [o allow discharge from points 001, 002, or 003, only <br />Point 002 hu actually been utilized for mine water discharge. <br />As indicted by the accompanying test results, the WET testing inditxte no chronic tozidty for fathead <br />minnows and the only chronic effects for Ceriodaphnra were reproductive. Consistent with the <br />provisions of Put VLA.3.d.3 of the permit, it is our understanding that no irnmediate anion by Kerr <br />is required under these drevmstances. <br />Smal! quantities of mine water remain in the bottom of both Ponds A (Point 001) and B (Point 002). <br />This remaining watu is below the level of the existing discharge orifices and could not be pumped <br />without re-suspending sediments from the pond bottoms. There are also minor quantitiu of mine <br />water existing u ice layers over the pond areas. Given the favonble WET testing results and the fan <br />that the small quantities of remaining mine water will not discharge until spring runoff and will be <br />significantly diluted by surfact runoff flows, Kerr is interested in pursuing the neceswy permit change <br />to return to the previous general permit for stormwater runoff discharge. We would appredate CDH- <br />WQCD guidance on how to proceed and identifiation of any limitatiotu which may be appliable. <br />Pleue feel free ro contact me with any questions or comments reguding this tnnsmittal. <br />I Sinczrely, <br />TerraMatriz <br />Jerry ~st~gettleton <br />JMN:cmc <br />l enclosure <br />J ca G. Patterson/Kerr <br />J. Moumart/Rerr <br />J. Cooper/EFC Denver <br />Steamboat Springs, CO • Denver, CO • Seattle, WA. Juneau, AK. Santiago, Chile SA <br />