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<br />-al- <br /> <br />THE PERMITTEE SHALL PROVIDE AN ASSESSMENT OF THE PROBABLE HYDROLOGIC <br />CONSEQUENCES OF SECONDARY OR RETREAT MINING ON THE QUANTITY AND QUALITY <br />OF SURFACE WATER IN CIRUELA, APACHE AND SANTISTEVAN CANYONS. <br />ALL MONITORING MUST CONTINUE UNTIL DISCONTINUATION IS APPROVED BY THE <br />DIVISION IN WRITING. <br />To verify the applicant's statement of probable hydrologic consequences, <br />identify adverse effects to the hydrologic system, and ensure that the <br />operations are conducted to minimize disturbances to the prevailing hydrologic <br />balance, the following stipulation is necessary in accordance with Rules <br />4.05.1(1), 4.05.13(1)(b) and 4.05.13(2)(b). <br />Stipulation No. 13 <br />THE PERMITTEE SHALL SUBMIT AN ANNUAL HYDROLOGIC MONITORING REPORT FOR <br />THE MAXWELL MINE. THE MONITORING REPORT SHALL INCLUDE A SUMMARY AND <br />ANALYSIS OF DATA COLLECTED DURING THE YEAR, INCLUDING: 1) WATER USED IN <br />THE MINING OPERATION; 2) MINE WATER DISCHARGES TO RECEIVING STREAMS <br />(QUANTITY AND QUALITY); 3) MINE WATER INFLOWS (ANNUAL MINE INFLOW <br />STUDY); 4) STREAM FLOWS AND QUALITY; 5) IMPACTS TO THE QUALITY AND <br />QUANTITY OF ALLUVIAL AND BEDROCK AQUIFERS; AND 6) IMPACTS TO SPRING <br />FLOWS AND QUALITY. THE MONITORING REPORT SHOULD INCLUDE A DESCRIPTION <br />OF MITIGATIVE MEASURES TAKEN TO MINIMIZE DISTURBANCE TO THE PREVAILING <br />HYDROLOGIC BALANCE. THE MONITORING REPORT SHALL BE ADEQUATE TO PLAN FOR <br />MODIFICATION OF SURFACE OR UNDERGROUND MINING ACTIVITIES, IF NECESSARY, <br />TO MINIMIZE DISTURBANCE TO THE PREVAILING HYDROLOGIC BALANCE. <br />VIII. Alluvial Palley Floors (Rules 2.06.8 and 4..24) <br />Alluvial Valley Floor Exemption <br />The applicant has requested that the Division make a specific finding that the <br />Maxwell Mine is " randfathered"from the requirements of Rule <br />2.06.8(5)(a)(i)(A~. Rule 2.06.8(5)(a)(i)(B)(I) allows for the exemption of a <br />mining operation that, in the year preceding August 3, 1977 either. <br />(1) produced coal in commercial quantities and was located within or <br />adjacent to alluvial valley floors; or <br />(2) obtained specific permit approval to conduct surface coal mining and <br />reclamation operations within an alluvial valley floor. <br />The applicant claims eligibility by reason of having produced coal in <br />commercial quantities in March, 1977. According to Colorado Division of Mines <br />records, the Maxwell Mine produced 31,815 tons prior to August, 1977. <br />Therefore, the Maxwell mining operation is "grandfathered" from the <br />requirement of Rule 2.06.8(5)(a)(i)(A). <br />