2018-08-03_PERMIT FILE - C1981019A ‎(4)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 8/3/2018
• Section_Exhibit Name: EXHIBIT 15 Permits
• Media Type: D
• Archive: Yes

Colorado Department of Public Health and Environment
Air Pollution Control Division
Colowyo Coal Company, L. P.
Permit No. 95MF1040
Issuance 7
For any non -criteria reportable pollutant:
If the emissions increase by 50% or five (5) tons per year, whichever is less, above the
level reported on the last APEN submitted to the Division.
b. Whenever there is a change in the owner or operator of any facility, process, or activity;
or
C. Whenever new control equipment is installed, or whenever a different type of control
equipment replaces an existing type of control equipment; or
d. Whenever a permit limitation must be modified; or
e. No later than 30 days before the existing APEN expires.
15, Public access shall be precluded in all areas within the modeling receptor exclusion zone as
submitted with the modeling in the application. The exclusion zone shall be fenced and posted
with no trespassing signs. See Attachment C. (Reference: Regulation No. 3, Part B, Section
III.6.5)
16. The following operational restrictions are based on the National Ambient Air Quality Standards
(NAAQS) compliance demonstration.
Dayshift activities shall only be performed between the hours of 8 AM and 8 PM.
These activities include:
• Hauling topsoil from Topsoil Piles to West Pit Reclamation
• Hauling topsoil from Topsoil South Taylor Active area to Topsoil Pile
• South Taylor Active area Water Trucks support topsoil activities
• South Taylor Active area Rental Scraper activities
• West Pit Reclamation Rental Scraper activities
• West Pit Reclamation unloading topsoil trucks
• Topsoil Pile loading topsoil for West Pit Reclamation
• South Taylor Active area loading topsoil to trucks via front end loader
• Topsoil Pile unloading South Taylor Active area topsoil
Blasting shall only occur between the hours of 11 AM and 5 PM. In the event of adverse weather
conditions and/or equipment breakdowns and in consideration of employee and public safety,
blasting may occur outside of the times provided.
a. Date, time, and circumstances are documented.
b. These documents are maintained and made available to the Division for inspection upon
request
Overburden shall not be transported from both West Pit Reclamation and South Taylor Spoils to the East
Pit concurrently.
The temporary (rental) scraper fleet shall not operate in both the South Taylor Active and West
Pit Reclamation areas at the same time.
AIRS ID: 081/0007 & 103/0327/001 Page 7 of 22