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
requirements of this permit. (Reference: Regulation No. 3, Part B, Section III.G.7.)
COMPLIANCE TESTING AND SAMPLING
Initial Testing Requirements
NSPS Subpart Y:
13. This measurement shall consist of consecutive readings taken at fifteen second intervals over a
one hour period (ten 6- minute averages). If, during the initial 30 minutes of the Method 9
observation, all of the 6- minute average opacity readings are less than or equal to half the
applicable opacity limit, then the observation period may be reduced from 1 hour to 30 minutes
(Reference § 60.257(a)(1)).
ADDITIONAL REQUIREMENTS
14. All previous versions of this permit are cancelled upon issuance of this permit.
15. A Revised Air Pollutant Emission Notice (APEN) shall be filed: (Reference: Regulation No. 3,
Part A, Section II.C.)
Annually whenever a significant increase in emissions occurs as follows:
For any criteria pollutant:
For sources emitting less than 100 tons per year, a change in actual emissions of five
tons per year or more, above the level reported on the last APEN submitted; or
For volatile organic compounds (VOC) and nitrogen oxide (NOx) sources in an ozone
non - attainment area emitting less than 100 tons of VOC or nitrogen oxide per year, a
change in actual emissions of one ton per year or more or five percent, whichever is
greater, above the level reported on the last APEN submitted; or
For sources emitting 100 tons per year or more of a criteria pollutant, a change in
actual emissions of five percent or 50 tons per year or more, whichever is less, above the
level reported on the last APEN submitted; or
For sources emitting any amount of lead, a change in actual emissions, above the level
reported on the last APEN submitted, of fifty (50) pounds of lead
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.
051/0007/999 Page 6