PERMFILE101453

• Permit No: C1984067
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: 4.0 PERMANENT PERFORMANCE STANDARDS
• Media Type: D
• Archive: No

A sedimentation pond is planned to control drainage and sediment from
• the surface facilities as shown on the Mine Facilities Map (Map 12).
The details for this sedimentation pond are set forth in Sections 4.05.6
and 2.05.6.
The embankments, impoundments and associated structures will be
revegetated. Routine inspections of these structures will be conducted
periodically as required by Section 4.05.9.
The sedimentation pond impoundment will be maintained according to the
specifications set forth in this part. Maintenance procedures fnr the
sedimentation pond may include mowing and cutting of excess vegetation
growth for the purpose of facilitating inspections and repairs and will
include keeping ditches, culverts, spillways, and other outflow
structures free of debris. All combustible material, other than mulch
or other material needed for erosion control and surface stability, will
be removed.
• Plans for any modification of the sediment
be submitted to the Colorado Mined Land
modification will begin until the approval
unless such modification is necessary upon
health or safety, or if the environment is
ation impoundment or dam will
Reclamation Division, and nc
of the plans has been granted
an emergency basis for public
endangered.
4.05.10 Underground Mine Entry and Access Discharges
P!o gravity discharge of water from the mining operation is anticipated
to occur. If groundwater is encountered, it will be routed to an
underground sump, where it will be used for dust control in the
underground mining.
4.05.11 Groundwater Protection
The wells along Lightner Creek are used for domestic purposes. Mining
operations in the Coal Gulch area will not affect these wells.
• Consequently, the Division and Peerless Resources, Inc. decided that no
water quality data would need to be obtained from these Lightner Creek
wells.
4.05-8