HYDRO20139

• Permit No: C1980007
• IBM Index Class Name: Hydrology
• Doc Date: 12/12/2005
• Doc Name: Discharge Permit CO-0038776
• From: Colorado Department of Public Health
• To: Mountain Coal Company, LLC
• Permit Index Doc Type: NPDES
• Media Type: D
• Archive: No

;OLORADO DEPAR ZMEIJt' OF PUBLIC HEALTH AND ENVIRONMEM, Water Qualiry Control Division
;aiionale-Page 8, Permit No. CO-0038776
b. Stormwater Man~ement Plans /SWMPs): The purpose of a SWMP is to identify possible pollutant sources to Stormwater
and to set out est management practices that, when implemented, will reduce or eliminate any possible water quality
impacts. A SWMP must a maintained for the West Elk Mine in accordance with good engineerirsg practices. (The plan
need norbe completed by a registered engineer.) The Division has a guidance document available on preparing a SWMP.
The plan identifies potential sources of pollution (including sediment) which may reasonably be expected to affect the
quality of Stormwater discharges associated with mining or remediation operations. In addition, the plan describes
practices, which will be used to reduce the pollutants in Stormwater discharges from the mining or remediation operation,
and to assure compliance with the terms and conditions of this permit. Facilities must implement the provisions of their
SWMP as a condition of this permit.
There are separate sections in this permit addressing SWMP requirements for pollutant sources in active and inactive
portions of the West Elk Mine.
SWMP For Active Mining Operations -Contents
a) Descriptionofminingactiviries
b) Area subject to effluent limitations guidelines
e) Site map
Stormwater management controls
1) SWMPAdministrator
1) Identification of potential pollutant sources and BMPs
3) Preventive maintenance
4 Good housekeeping •
) Spill prevention and response procedures .
6) Emplo ee education
77) Identification of discharges other than stormwaler
e) Comprehensive inspection
:i. SWMP ForlnactiveMiningOperations-Contents
a) Descriprionofminingactiviries
b) Site map .
c) Stormwater management controls - Ident~cation ofpotential pollutant sources and BMPs
I) Stormwater diversion
1) Sediment and erosion prevention
d) Comprehensive inspection
e) Addiuonalltems
• Additional SWMP Requirements apply if the West Elk Mine seeks terminations of the Stormwater portion of this
permit. In the event that the permutee wishes to remediate an inactive mine site and terminate permit coverage,
pnor to remediation activities, the SWMP must be amended ro include the following items, and the permittee must
notify the Division of the change in status:
1~ Documentation of landowner permission (tfthe permittee is not the owner)
of remedial action to be performed
: ofBMPs during remediation activities
for disposal 01 anyy water stored within mine waste
: ofpermarsent BMPs to be used, final site stabilization, and ultimate land use
SWMP Develo ment Coordination and Format: Some activities required under the SWMP may already be in place.
owever, t e wi requtre t .e permittee to coordinate these acfivities with any necessary new activities irz an orderly
.manner, so that the result is the reduction or elimination of pollutants reaching state waters from areas not limited by
numeric effluent limitations.
It is the permittee's responsibility to notify the Colorado Division of Minerals and Geolo (/CDMG) of any ~hange_s at their
site resulting from the implementation of the SWMP. This notification allows the ~ISMG to review the SWMP and
incorporate any potential revisions, which might be needed into the facility's reclamation ermit. It is im ortant to verify
that the site reclamation permit matches the SWMP. Such information u usually containedPn Exhibit G ofP10 reclamation
permitr. ~ _
The SWMP may rely upon information developed for other similar pollution control programs such as the SPCC ((S~ill
Prevention Control and Countermeasures) plan, Voluntary Cleanup Plan, or the Mined Land Reclamation Plan.
Appropriate porrions o these other plans may be incorporated in the SWMP by reference, as long as a complete SWMP
can be reproduced and submitted to the requesting agency within the rime frame specified in the request. Those portions of
the referenced documents must be included in the submittal. The SWMP must also be readily available to an on-site
inspector.
c. Com rehensive Facili Ins ections: The permittee shall make a thorough inspection of their stormwaler management
system, at east twice per yyear in the sprin and fall). These inspections must be documented and summarized in the
Annual Report (see Part LD.l.g of the permit
d Annual Re art: The permittee will be required to submit an Annual Report, covering January 1 through December 3/ of
eat year, on the compliance with the SWMP. The Annual Report shall contain, at a minimum:
i. A report on the facility's overall compliance with the SWMP, including a progress report on remediation activities.
ii. A summary of'all comprehensive stormwaler inspections made.
iii. Results dnd interpretation of any Stormwater monitoring performed.
The Annual Report will be due to the Division on or before February I S of the following year (see Part LD.2.g of the
permit).
All reports required for submittal shall be signed and certified for accuracy by the permittee. (See Part LE.6. of the
permit)
/nor Rvvimd~ 4/792004