RegionalHazeConsulta tion081407

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What is Regional Haze?: 

What is Regional Haze? July 1, 1999 – EPA promulgated Regional Haze Regulations Regional haze is visibility impairment caused by the cumulative air pollutant emissions from numerous sources over a wide geographic area. The ultimate goal of the Regional Haze Program is to return the nation’s Class I areas to natural visibility conditions by 2064. The program intends to remedy existing and prevent future human-caused impairment of visibility in mandatory Federal Class I areas. The program addresses aesthetics rather than health concerns 1

Wichita Mountains Wilderness Area: 

Wichita Mountains Wilderness Area Oklahoma’s only Class I Area Located in Comanche County near Ft. Sill Military Reservation Contained within Wichita Mountains Wildlife Refuge Consists of North Mountain and Charons Garden Wilderness Areas 2

Regional Haze Terminology : 

Regional Haze Terminology BART –Best Available Retrofit Technology Deciview (dv) - The unit of measurement of haze URP – Uniform Rate of Progress Glide path – Haze versus date plot of 2002 baseline conditions and 2064 natural conditions which is used to establish URP RPO – Regional Planning Organization. CENRAP - Central Regional Air Planning Association RPG - Reasonable Progress Goal SIP – State Implementation Plan AOI – Area of Influence 3


Uniform Rate of Reasonable Progress Glide Path Wichita Mountains – 20% Worst Days Environ/UCR CENRAP Modeling Results, June 6, 2007 Baseline Conditions URP Goal Natural Conditions Need 3.79 dv reduction to achieve 2018 URP Goal (23.81 - 20.02). Projected to achieve 2.34 dv reduction (23.81 - 21.47) or 62% of Goal. 4

Natural Haze Levels II: 

Natural Haze Levels II From the Visibility Information Exchange Web System 5

2004 Worst 20% dv: 

2004 Worst 20% dv 6

Species Contributions to Haze: 

Species Contributions to Haze 7

Species Glide Slopes: 

Species Glide Slopes 8


Environ/UCR CENRAP PSAT Viz tool July 2007 Source of Visibility-Related Pollutants Effecting Wichita Mountains Class 1 Area Modeled Contributions by Region 9

Particulate Source Apportionment for Wichita Mountains Projected Extinction Coefficient on Worst 20% Days in 2002 [Total= 92.12/Mm]: 

Particulate Source Apportionment for Wichita Mountains Projected Extinction Coefficient on Worst 20% Days in 2002 [Total= 92.12/Mm] 10

Particulate Source Apportionment for Wichita Mountains Projected Extinction Coefficient on Worst 20% Days in 2018 [Total= 72.01/Mm]: 

Particulate Source Apportionment for Wichita Mountains Projected Extinction Coefficient on Worst 20% Days in 2018 [Total= 72.01/Mm] 11

Contributions by State: 2002: 

Contributions by State: 2002 Environ/UCR CENRAP PSAT Viz tool 27,April, 2007 12

Contributions by State: 2018: 

Contributions by State: 2018 Environ/UCR CENRAP PSAT Viz tool 27,April, 2007 13












SO2 continued: 19


Best Available Retrofit Technology (BART) Source Oklahoma has identified 6 BART-affected sources 20

Important Dates: 

Important Dates SIP Submittal Deadline: December 17, 2007 Oklahoma BART rules became effective October 6, 2006 BART Controls Required to be Enacted 5 Years After SIP Approval by EPA Regional Haze 21

Consultation Process: 

Consultation Process Prior to SIP submittal, the DEQ will 1. Hold Consultations with Oklahoma Tribes, Federal Land Managers, and Contributing States 2. Submit Plan to Federal Land Managers 60 days prior to any public hearing 22

Other Stakeholders: 

Other Stakeholders Other stakeholders such as industry will not be participants in the consultations. Minutes of the consultations and other support documents will be posted on the AQD and CENRAP websites. Industry and members of the public may comment on the draft SIP. 23

States in Consultation on WIMO: 

States in Consultation on WIMO Arkansas Iowa Kansas Louisiana Minnesota Missouri Nebraska Texas 24

Reasonable Progress Goals: 

Reasonable Progress Goals Provide for an improvement in visibility for the most impaired (i.e. 20%) days over the period of the implementation plan. Ensure no degradation in visibility for least impaired (20% best) days over same period. Glide path is not a presumptive target. 25

Reasonable Progress Goals: 

Reasonable Progress Goals States may establish RPG that provides for greater, lesser, or equivalent visibility improvement as described by the glide path. SIP will include four-factor analysis to justify RPG (continued) 26

Four Factors for Analyses: 

Four Factors for Analyses Costs of compliance Time necessary for compliance Energy & non-air quality environmental impacts of compliance Remaining useful life of existing sources that contribute to visibility impairment. 27

Future Consultation Dates: 

Future Consultation Dates August 16 – 10 am August 30 – 10 am September 13 – 10 am Via phone conferences 28


Access Regional Haze Documents: Or contact: Cheryl Bradley, Environmental Programs Manager [email protected] (405) 702-4218 29