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<br />A-1 <br />;Introduction • <br />Enclosed is a list of parameters and frequency of monitoring for the Nucla <br />Strip mine. The preparation of this list culminates a review of overburden <br />chemistry data and surface and ground water data con tained'in the permit <br />application, along with a review of proposed receiving stream standards for <br />the San Niguel River. <br />The mining company is required under Rule 4.05.13(I) and i7) to monitor the <br />effects of surface mining activities on the quantity and quality of water in <br />ground and surface water systems. This monitoring is required to judge the <br />compliance of the operator with the water quality provisi~ms of the Colorado <br />Surface Coal Mining Reclamation Act. The water quality provisions of the Act <br />require that the operator shaI1 in no case violate Fede ra.f and State wal:er <br />quality statutes, regulations, standards, or effluent limitations. The <br />water quality standards which the operator must be found .fn compliance with <br />are Receiving Stream Standards and NPDES effluent limitations. <br />If representatives of Peabody Coal Company have any comments or questions, <br />please feel free to contact the Division. <br />1 <br /> <br /> <br />A-2 <br />