Rocky Mountain National Park - Nitrogen Deposition Workgroup

NOx evaluation process to address regional haze, ozone and Rocky Mountain National Park nitrogen

Air Pollution Control Division

Rocky Mountain National Park Initiative

The RMNP Initiative was formed to study and recommend action on air quality issues facing the park. This website provides a clearinghouse for the initiative's information.

Participants in the initiative include the Colorado Department of Public Health and Environment Air Pollution Control Division, U.S. EPA Region 8 Air Program, the Air Resources Division of the National Park Service and the U.S. Forest Service.

Nitrogen Deposition Reduction Contingency Plan

The MOU Agencies present the NDRP Contingency Plan and welcomes all comments from interested stakeholders. If your group would like a briefing on the current status of the Plan, please contact Lisa Clarke at 303-692-3117 or Lisa.Clarke@state.co.us

NDRP Contingency Plan Draft November 2009
- Appendix A: National Agricultural Statistic Service
- Appendix B: Monitoring and Tracking Wet Nitrogen Deposition at Rocky Mountain National Park

Nitrogen Deposition Reduction Plan

Nitrogen Deposition Reduction Plan Revised August 2007
Appendices A-E: Control Options 1-8
Appendices F-L: Control Options 9, 10, 21-23, 39, 40
Appendices M-S: Control Options 41-45, 47, 48
Appendix T: Agricultural Sector Information
Appendix U: Evaluation of Meteorological Data Grid Resolution on Airmass Transport
Appendix V: Options to Reduce Ammonia Emissions

Air Quality Control Commission Resolution Regarding Nitrogen Depostion Reduction Plan

AQCC Resolution, August 16, 2007

Response to Comments on Nitrogen Deposition Reduction Plan

MOU Agency Response to Comments, August 2007

Papers/Reports/Correspondence

Rocky Mountain Atmospheric Nitrogen and Sulfur Study (RoMANS) Report (October 2009)
- To view report Please see the National Park Service Website under the "Park Specific" heading
Proposed study on the Origins of Nitrogen and Sulfur in RMNP
Findings from the 2005 pilot study (1.5mb)
May 9 Letter from National Park Service to Colorado Department of Public Health and Environment regarding a critical load level for nitrogen
- Response Letter from Dennis E. Ellis, Executive Director, Colorado Department of Public Health and Environment
Nitrogen deposition: issues and effects in Rocky Mountain National Park
Rocky Mountain National Park air quality initiative regulatory and non-regulatory options
Why federal land managers in the Northwest are concerned about nitrogen emissions

Presentations (all files in PDF format)

October 15, 2009 Air Quality Control Commission
- RMNP Contingency Plan Progress Update
October 16, 2008 Air Quality Control Commission
- RMNP Update on Activities
August 16, 2007 Air Quality Control commission Meeting
- RMNP Initiative: Nitrogen Deposition Reduction Plan
June 21, 2007, Air Quality Control Commission Meeting Public Hearing
- Nitrogen Deposition Reduction Plan
March 15, 2007, Air Quality Control Commission Meeting
- Nitrogen Deposition Reduction Plan
March 6, 2007, RMNP Subcommittee Meeting
- Nitrogen Deposition Reduction Plan
January 23, 2007 Water Quality Forum
- Presentation to the Water Quality Forum, Mike Silverstein, APCD
September 26, 2006 RMNP Subcommittee Meeting
- Nitrogen Deposition Reduction Plan Timeline : Important Dates from Oct. 2006 - January 2007
- Nitrogen Deposition Reduction Plan Outline

Environmental Defense and Colorado Trout Unlimited Petition and Exhibits (all files in PDF format)

Petition : Petition before the U.S. Department of Interior to Immediately Issue a a Declaration of Adverse Impact on Air Quality Related Values at RMNP

Exhibit A : Nitrogen deposition issues and effects in RMNP
Exhibit B : Ecosystem responses to nitrogen deposition in RMNP
Exhibit C : Request to U.S. EPA from National Park Service to restore and protect air quality related values in national parks and wilderness areas
Exhibit D : Comments submitted on behalf of the National Parks Service and U.S. Fish and Wildlife Service in response to the U.S. EPA's Aug. 9, 2000 notice soliciting public comment on rulemaking requests.
Exhibit E : Federal register petition for secondary national ambient air quality standards for nitrogen dioxide, sulfur dioxide, and fine particulate matter and related request.
Exhibit F : Preliminary Notice of Adverse Impact on Shenandoah National Park
Exhibit G : Preliminary Notice of Adverse Impact on Great Smoky Mountains National Park
Exhibit H : Ecological Effects of Nitrogen Deposition in the Western United States
Exhibit I : Nitrogen Emissions, Deposition and Monitoring in the Western United States