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• ,. ~..:: ~.da:. Or <br />GOAL CSIilI:~G FACILITIES <br />(SURFAG~ RU210FF ONL`i) <br />GENERAL PEEL"tIT IN COLORADO <br />RATIONALE <br />COLORADO DISCHARGE PERMIT NUMBER COG-850000 <br />I. Update <br />This is the first renewal of the general permit for coal mining facilities <br />(surface runoff only). The original permit was issued March 8, 1988, and <br />became effective on April 8, 1988. <br />This general permit has been of value both to permictees and the <br />Division. Permittees who qualify are able to secure a permit in a much <br />shorter time than is required for issuance of an individual permit. The <br />' Division's permit drafting burden is lessened by the ability co issue <br />certifications co the general permit for qualified facilities. <br />II. Permit Changes <br />Stormwater Management Plan - The federal effluent guidelines that govern <br />discharges from coal mining facilities (40 CFR 434) have not changed since <br />the original general permit was issued. Part 434 controls most surface <br />runoff from coal mining facilities through Iimi*_ations that apply to <br />discharges from sedimentation ponds. This is consistent with regulations <br />implemented by the federal Office of Surface Mining (OSM}. In Colorado, <br />the Colorado Mined Land Reclamation Division (CMI.RD) assures compliance <br />with these federal requirements. The Division has detzrmined [hat <br />limitations beyond these are not necessary for such areas. However, these <br />regulations do not address all sources of stormwater from coal mining <br />facilities. Areas such as roads and railroad lines, pond outs lopes, <br />inactive loadouts, sites used for storage and maintenance of material <br />handling equipment and areas for which small area exemptions have been <br />granted are not covered by these regulations. <br />The federal stormwater regulations, issued November 15, 1990, impact the <br />subject facilities in some subsCantial ways. As they apply to coal mining <br />facilities, the stormwater regulations primarily address areas noC covered <br />by Part 434. Compliance with these regulations may be achieved through <br />measures of best management practices and pollution prevention. Best <br />management practices (Bt4P) means schedules of activities, prohibitions of <br />practices, maintenance procedures, and ocher management practices to <br />prevent or reduce the pollution of the waters of the State. <br />