2008-12-04_PERMIT FILE - C1981033

• Permit No: C1981033
• IBM Index Class Name: Permit File
• Doc Date: 12/4/2008
• Section_Exhibit Name: EXHIBIT 04 PERMITS FOR MINING
• Media Type: D
• Archive: No

PARTI
Page No. 9
Permit No.: CO-0044377
2. stormwater Requirements (continued)
b) Photographs: The plan shall include photographs documenting the condition of the inactive mine site before any
remedial action has occurred. For recently active mines, photographs of the active mining phase maybe substituted.
c) Description of Remedial Action: The plan shall describe the remedial action that will take place to minimize or
eliminate the water quality impacts from the mine waste. The description shall include:
- Remediation Goal Statement;
- the characteristics of the mineralogical content of the mine-waste, and estimated volume of the waste;
- description of any materials that will be mixed into the mine waste on site; and
- estimated surface area of the final site, and estimated angle of side slopes.
d) Description of.BMPs during Remediation Activities: The plan shall describe BMPs that will be implemented to reduce
the potential of remediation activities to contribute pollutants to stormwater discharges. Acttvltles that shall be
addressed include vehicle maintenance, earth moving, material storage and spill prevention.
e) Procedures for Disposal of Water Stored Within Mine Waste: The permittee must describe how any water stored
within the mine waste will be collected and/or routed to any storage, or treatment facilities. No discharge of this water
shall be made to waters of the state, unless separate permit coverage is obtained.
f) Description of Permanent BMPs, Final Site Stabilization, and Ultimate Land Use: The plan shall include a description
of the specific permanent measures that will be installed or used at the mine-waste site. The description shall include
any of the following if appropriate: sppecifications for capping or isolation of the mine waste, method and type of
revegetation, and other permanent BMPs. The plan shall also include a description of the ultimate land use after
remediation 1s complete.
vi) Consistency with Other Plans
SWMPs may reflect requirements for S ill Prevention Control and Countermeasure (SPCC) plans under section 31 I of the
CWA, or Best Management Practices BMPs) Programs otherwise required by, a C PS permit, and may incorporate any
part of such plans into the SWMP by reference. The SWMP may reflect Information contained in approved plans
submitted for other similar PPollution control programs, including the Voluntary Clean Up Program. (Voluntary Cleanup and
Redevelopment Act, CRS 25-16-303) as long as they contain the elements described above. These plans must have been
approved by the implementingg agencyy pprior to application for the stormwater Permit. Appropriate portions of these other
plans may be incorporated in the~WMP by reference, as long as a complete SWMP can be reproduced and submitted to the
requesttng aggency within the time frame specified in the request. Those portions of the referenced documents must be
included in tfie submittal. The SWMP must also be readily available to an on-site inspector.
• b. General Limitations
The following limitations shall apply to all discharges authorized by this permit:
i) stormwater discharges from mining operations or mine-waste remediation projects shall not cause or threaten to cause
pollution, contamination, or degradation of State waters.
ii) Bulk storage structures for petroleum products and other chemicals shall have adequate protection so as to contain all spills
and prevent any spilled material from entering State waters.
iii) No chemicals are to be added to the discharge unless the Division grants ppeiTrlission for the use of a specific chemical. In
granting the use of such chemicals, special conditions and monitoring may be addressed by separate letter.
iv) All dischargers must comply with the lawful requirements of counties; drainage districts and other state or local agencies
regarding any discharges of stormwater to storm drain systems or other watercourses under their jurisdiction.
c. SWMP Requirements
i) SWMP Submittal/Review/Changes: The Division reserves the right to request and review the plan, and to require additional
measures to prevent and control pollution, as needed. Upon review of the SWMP the Division may notify the ~ermittee at
any time that the plan does not meet one or more of the minimum requirements oi~'this permit. After such noti ication, the
permittee shall make changes to the plan. Unless otherwise provided by the Division, the permittee shall have 30 days after
such notification to both make the necessary changes to the plan and to implement them.
The permittee shall amend the plan whenever there is a Change in design, construction, operation, or maintenance which has
a significant effect on the potential for the discharge of pollutants to the waters of the State, or if the SWMP proves to be
ineffective. in achieving the general obJJ'ectives.of.controlling pollutants in storrriwater.discharges associated .with mining
activity. Amendments to the plait shall be stirrimarized in the Annual Report:
d. Prohibition ofNon-stormwater Dischacs?es
i) Except as provided in paragraph b,. below, all discharges authorized by the stormwater portion of this permit shall be
composed entirely of stormwater. Discharges of water other. than stormwater must be addressed in a separate CDPS permit
issued for that discharge.
ii).. Discharges from the following,sources that are combined with stormwater discharges associated with mining activity may be
• authorized the. stormwater pportion of this permit; pprovided that the non-stormwater coinponent of the discharge is identified
in the SWMP (see Part I.D.2.c of the permit): tire fighting activities uncontaminated cordpressor condensate, irrigation .
drainage, lawn watering, air conditioner condensate, uncontaminated seeps and springs, and foundation or footing Grains .
where~liiws are not contaminated.
Revised 10/29/2008