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HYDRO21625
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Last modified
8/24/2016 8:42:59 PM
Creation date
11/20/2007 2:25:03 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1989074
IBM Index Class Name
Hydrology
Doc Name
CDPS GENERAL PERMIT FOR COAL MINING FACILITIES SURFACE RUNOFF ONLY STORMWATER MANAGEMENT PLAN GUIDAN
Permit Index Doc Type
OTHER GROUND WATER
Media Type
D
Archive
No
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, S,.~at+ ~,ocm3~2 IIIIIIIIIIIIIIIIIII <br />~ Colorado Department of Health <br />' 's Water Quality Control Division <br />W QCD-PE-B2 <br />4300 Cherry Creek Drive South <br />Denver, Colorado 80222-1530 <br />CDPS GENERAL PERMIT FOR COAL MINING FACILITIES (SURFACE RUNOFF ONLl~ <br />STORMWATER MANAGEMENT PLAN -GUIDANCE <br />stormwater that has come into contact with any overburden, raw material, intermediate products, byproducts, finished <br />products or waste products located at the mining site is now regulated under We Clean Water Act. Under your <br />CDPS permit (COG-850000), your coal mining operation is permitted to discharge stormwater associated with that <br />mining operation into waters of the state of Colorado. <br />As a condition of your CDPS permit, you are required to submit a stormwater Management Plaa to the Water Quality <br />Control Division within six months of the time your permit certification became effe.:tive. <br />The discharge permit under which you are certified is a General Permit that is used by many coal mines with surface <br />discharge only. The coal mines range from very large and complex to small and relatively simple operations. The <br />general permit is wrinen to cover a range of complexity and conditions. This information about stormwater <br />management plans must also be applicable to the range of complexity at the mines covered by the general permit. In <br />some cases, your operation may not warrant all of the details described below. in other cases, a more complex <br />treatment of stormwater pollution prevention measures may be appropriate. Please remember that the goal of the <br />stormwater management plan is to identify potential sources of pollution including sediment) which may be <br />expected to affect the quality of stormwater, and to describe the best management practices (BMPs) which will <br />he used to reduce and control the pollutants. <br />In order to help you in your stormwater management planning, we offer the following guidance. If you have <br />questions about the stormwater program, please call the Permits and Enforcement Section at (303) 692-3590. <br />STORMWATER MANAGEMENT PLAN <br />A Stortnwater Management Plan (SWMP) is to be developed for We portion of each facility covered by this permit. <br />The SWMP should be prepared in accordance wiW good engineering practices. (The plan Deed not be completed by a <br />registered engineer.) <br />The plan shall identify potential sources of pollution (including sediment) which may reasonably be expected to affect <br />the, quality of stormwater discharges associated with We mining operation. In addition, the plan shall describe and <br />ensure the implementation of best management practices (BMPs) which will be used to reduce the pollutants io <br />stormwater discharges associated with mining activity. <br />Note: The SWMP requirements do not apply to those mine arras which contribute runoff to a discharge point that is <br />subject to effluent limitation guidelines contained in 40 CFR subchapter N. ('these limitations aro listed in Part I.B.1 <br />of the General Permit.) These contributing areas are regulated by the effluent limitation guidelines. stormwater <br />quality controls are required in areas where Were are no effluent limitation guidelines (for instance: some roads and <br />railroad lines, outslopes of ponds, inactive loadouts, sites used for storage and maintenance of material handling <br />equipment and areas Wat have been granted a small area exemption). <br />The SWMP should include We following items: <br />1. Descriolion of Mining Activities <br />The plan should provide a narrative description of We mining and associated activities taking place at We site <br />which affect or may affect stormwater runoff intended to be covered by Wis permit. The narrative description <br />should report the total acreage within the mine site and ao estimate of We number of acres of disturbed area. A <br />
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