PERMFILE69668

• Permit No: M2003091
• IBM Index Class Name: Permit File
• Doc Date: 6/30/2004
• Doc Name: CDPS Industrial General Permit
• From: CDPHE
• To: LaFarge West Inc
• Media Type: D
• Archive: No

age
Permit No. COG-500000
C. EFFLL-ENT LIMITATIONS AND CONDITIONS - STORMWATER DISCHARGE (continued)
2. Stotmwater Management Plan (SWMP]
A Stotmwater Management Plan (SWMP) shall be developed for each facility covered by this section (Part LC). The SWMP shall
be prepazed in accordance with good engineering practices. (A registered engineer need not complete the plan.)
The plan shall identify potential sources of pollution (including sediment), which tray reasonably be expected to affect the quality of
stotrnwater dischazges associated with the mining activity. In addition, the plan shall descnbe and ensue the implementation ofbest
management practices (BMPs), which will be used to reduce the pollutants in stormwater dischazges, associated with mining activity.
S WMPs that were prepazed in accordance with requirements in rite previous version of the permit need not be amended to conform
to the S WMP format in this permit.
The permittee must implement the provisiotu of SWMP required under this part as a condition of this permit.
'The SWMP shalt include the following items, at a tninitnum:
a. Site Map ~
The plan shall provide a site trap or maps, which indicate at a m;nimx,m~
- Mining site boundaries
- Access and haul roads
- Stormwater outfatIs and an outline of the drainage azea of each stormwater outfall
- An estimate of the direction of flow
- Materials handling areas
- Each existing structural control measure to reduce pollutants in stormwater nmoff
- Areas used for storage or disposal of overburden, materials, soils or wastes
- Areas used for mineral milling and processing
- Springs, streams, wetlands and other surface waters
- Location of mine drainage or any other process water
- Boundary of tnltutary azea that is subject to effluent limitations
- Date the map was prepazed
b. Description of Potential Pollutant Sources/Material Inventory
The plan shall provide a description of all potential sources (activities and materials) which tray reasonably be expected ti
add pollutants to stormwater dischazges. Such sources may include haul roads, equipment storage and maintenance aeeas
fuel storage aeeas, etc. -
In each case where stotmwatet pollution potential exists, appropriate preventive measures must be takes and
c. Stormwater Quality Controls
Each mining site covered by this permit shall develop a description of stormwater quality controls appropriate for that sii
and implement such controls. The appropriateness and priorities of controls in the plan shall reflect identified potenti
sources of pollutants at the site. The description of stormwater quality controls shall address the following minima
components, including a schedule for implementing such controls:
1) SWMP Administrator - The SWMP shall identify a specific individual or individuals within the mining organvati
who is responsible for developing the SWMP and assisting the mine operator in its implementation, maintenance, a
revision.
2) Materials Handling and Spil] Prevention -Where materials can impact stormwater runoff, BMPs that reduce t
potential for contamination shall be described. For example, materials should be stored and handled in covered at
whenever possible to prevent contact with stormwater; fuels and other chemicals should be stored within berms
secondary containment devices to prevent leaks and spills from entering stormwater runoff.
3) Erosion and Sediment Controls -Describe BMPs that will be used to reduce erosion and prevent sediment delive
State waters. These should include structural (such as silt fences, sediment ponds, drop structures, check dams}
non-structural (such as mulching and revegetation) methods.