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Status of SIP Requirements for Designated Areas

Wyoming Areas by Pollutant
As of 07/20/2014
View Nonattainment Contacts


Jump to Wyoming section for:  CO (1971)   Lead (1978)   Lead (2008)   NO2 (1971)   Ozone-1Hr (1979)   Ozone-8Hr (1997)   Ozone-8Hr (2008)   PM-10 (1987)   PM-2.5 (1997)   PM-2.5 (2006)   SO2 (1971)   SO2 (2010)   


Wyoming CO (1971) Areas    Return to map    

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No designated areas for this pollutant.

Wyoming Lead (1978) Areas    Return to map    

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No designated areas for this pollutant.

Wyoming Lead (2008) Areas    Return to map    

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No designated areas for this pollutant.

Wyoming NO2 (1971) Areas    Return to map    

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No designated areas for this pollutant.

Wyoming Ozone-1Hr (1979) Areas    Return to map    

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No designated areas for this pollutant.

Wyoming Ozone-8Hr (1997) Areas    Return to map    

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No designated areas for this pollutant.

Wyoming Ozone-8Hr (2008) Areas    Return to map
 
Click on the Area name
to view SIP Requirements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(ppm)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/Approved
Clean Air
Determination
Effective Date
Citation
(link to GPO website)
Redesignation
Request Date
Redesignation
Effective Date
Citation
(link to GPO website)
Upper Green River Basin Area Nonattainment 07/20/2012 Marginal 11,498 2010-2012 0.080 No 0 / 0  
 
   
 

Wyoming PM-10 (1987) Areas    Return to map    

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Click on the Area name
to view SIP Requirements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
(entire area)
Meets
NAAQS
SIP
Requirements
Original/Approved
Clean Air
Determination
Effective Date
Citation
(link to GPO website)
Redesignation
Request Date
Redesignation
Effective Date
Citation
(link to GPO website)
Sheridan County; City of Sheridan Nonattainment 11/15/1990 Moderate 17,300 2010-2012   Yes 3 / 3  
 
   
 

Wyoming PM-2.5 (1997) Areas    Return to map    

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No designated areas for this pollutant.

Wyoming PM-2.5 (2006) Areas    Return to map    

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No designated areas for this pollutant.

Wyoming SO2 (1971) Areas    Return to map    

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No designated areas for this pollutant.

Wyoming SO2 (2010) Areas    Return to map    

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No designated areas for this pollutant.
 
We have made our best effort to ensure that the data contained in these reports is accurate. We note that there may be brief delays in updating the reports as we receive new state submissions and we take rulemaking action on plans. In order to assist us in providing accurate information, we request that you contact us by clicking on the "Contact Us" link near the top of this page with any comments regarding or corrections to the posted information, including concerns about whether the entries reflect the most recent status.

Current and historical design value data can be found on the EPA Air Trends website and the EPA Green Book contains comprehensive nonattainment area, designation status, and historical information.

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