2013-11-04_PERMIT FILE - C1981022 ‎(23)‎

• Permit No: C1981022
• IBM Index Class Name: Permit File
• Doc Date: 11/4/2013
• Doc Name: CDOPH & E Air Pollution Control Permits
• Section_Exhibit Name: Exhibit 2.03-E4 Part 4
• Media Type: D
• Archive: No

Oxbow Mining, LLC Colorado Department of Public Health and Environment
Permit No. 98GUO812 - Air Pollution Control Division
Initial Approval — Modification 6
visible emissions shall not exceed 30% opacity for more than six minutes in any sixty consecutive
minutes. Opacity shall be determined using EPA Method 9. (Reference: Regulation No. 1,
Section ILA. 1. & 4.)
10. All conveyors, screens, crusher, transfer and loading systems are subject to New Source
Performance Standards requirements of Regulation No. 6, Part A, Subpart Y, Standards of
Performance for Coal Preparation Plants as follows:
a. Visible emissions from screens, crusher, hopper loading, and conveyors /transfer
points shall be less than 20% opacity.
In addition, the following requirements of Regulation No. 6, Part A, Subpart A, General
Provisions, apply.
At all times, including periods of start-up, shutdown, and malfunction, the facility
and control equipment shall, to the extent practicable, be maintained and
operated in a manner consistent with good air pollution control practices for
minimizing emissions. Determination of whether or not acceptable operating and
maintenance procedures are being used will be based on information available to
the Division, which may include, but is not limited to, monitoring results, opacity
observations, review of operating and maintenance procedures, and inspection
of the source. (Reference: Regulation 6, Part A. General Provisions from
40CFR60.11)
C. No article, machine, equipment or process shall be used to conceal an emission
which would otherwise constitute a violation of an applicable standard. Such
concealment includes, but is not limited to, the use of gaseous diluents to
achieve compliance with an opacity standard or with a standard which is based
on the concentration of a pollutant in the gases discharged to the atmosphere.
(§ 60.12)
d. Written notification of construction and initial startup dates shall be submitted to
the Division as required under § 60.7.
e. Records of startups, shutdowns, and malfunctions shall be maintained, as
required under § 60.7.
f. Performance tests shall be conducted as required under § 60.8
11. The process equipment are subject to the process weight rate of Regulation Number 6, Part B, III.
C. as follows:
For those pieces of equipment with process weight rate of 30 tons per hour or less, pounds per
hour emissions of total particulates shall not exceed 3.59'P° 62, where P = hourly process weight
rate (tons per hour).
For those pieces of equipment with process weight rate of more than 30 tons per hour, pounds
per hour emissions of total particulates shall not exceed 17.31 "P016, where P = hourly process
weight rate (tons per hour).
OPERATING & MAINTENANCE REQUIREMENTS
12. The applicant shall follow the most current operating and maintenance plan and record keeping
format approved by the Division in order to demonstrate compliance on an ongoing basis with the
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