Conformity Adequacy Review: Region 8
State Implementation Plans (SIP) Submissions that EPA has Found Adequate or Inadequate
Region 8: Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming
For more information about adequacy review, return to the main adequacy page.
Contact: Tim Russ at 303-312-6479, fax: 303-312-6064 or russ.tim@epa.gov.
U.S. EPA Region 8, 1595 Wynkoop St., Denver, Colorado 80202.
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Colorado
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Area
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Pollutant
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SIP Submission
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Finding (date budgets apply)
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Additional Information/ Comments
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Aspen | PM10 | maintenance plan | Adequate (6/11/2012) Letter FR Notice |
Budgets found adequate through the adequacy review process. |
Adequate (9/4/2002) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |||
Canon City | PM10 | maintenance plan | Adequate (8/17/2011) Letter FR Notice |
Budgets found adequate through the adequacy review process. |
Adequate (7/31/2000) FR Notice |
Budgets found adequate through SIP approval process. | |||
Colorado Springs | carbon monoxide | limited maintenance plan | Adequate (8/17/2011) Letter FR Notice |
Budgets found adequate through the adequacy review process. |
maintenance plan 1998-2009 budgets | Inadequate (4/29/1999) | Determination made under old process | ||
maintenace plan 2010 budget and beyond | Adequate (4/29/1999) | Determination made under old process | ||
Denver | 8-hour ozone | attainment plan | Adequate (3/19/2010) Letter FR Notice |
Budgets found adequate through the adequacy review process. |
pm10 | maintenance plan | Adequate (6/28/2007) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |
Adequate (10/29/2001) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |||
carbon monoxide | maintenance plan | Adequate (6/28/2007) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |
Adequate (8/18/2000) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |||
Fort Collins | carbon monoxide | limited maintenance plan | Adequate (6/11/2012) Letter FR Notice |
Budgets found adequate through the adequacy review process. |
maintenance plan | Adequate (1/15/2003) Letter FR Notice |
Budgets found adequate through the adequacy review process. | ||
Greeley | carbon monoxide | limited maintenance plan | Adequate (8/17/2011) Letter FR Notice |
Budgets found adequate through the adequacy review process. |
maintenance plan | Adequate (1/20/2004) Letter FR Notice |
Budgets found adequate through the adequacy review process. | ||
Lamar | PM10 | second maintenance plan | adequate 10/20/2014 79 FR 59767 printed 10/03/2014 |
Budgets found adequate through the adequacy review process |
maintenance plan | Adequate (11/12/2002) Letter FR Notice |
Budgets found adequate through the adequacy review process. | ||
Longmont | carbon monoxide | maintenance plan | Adequate (6/28/2007) Letter FR Notice |
Budgets found adequate through the adequacy review process. |
Inadequate (5/14/1999) | Determination made under old process | |||
Pagosa Springs | PM10 | maintenance plan | Adequate (8/17/2011) Letter FR Notice |
Budgets found adequate through the adequacy review process. |
Adequate (8/18/2000) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |||
Steamboat Springs | PM10 | second maintenance plan | adequate 10/20/2014 79 FR 59767 printed 10/03/2014 |
Budgets found adequate through the adequacy review process. |
maintenance plan | Adequate (11/12/2002) Letter FR Notice |
Budgets found adequate through the adequacy review process. | ||
Telluride | PM10 | maintenance plan | Adequate (8/17/2011) Letter FR Notice |
Budgets found adequate through the adequacy review process. |
Adequate (8/18/2000) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |||
Montana
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Area
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Pollutant
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SIP Submission
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Finding (date budgets apply)
|
Additional Information/ Comments
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Missoula | carbon monoxide | maintenance plan | Adequate (6/16/2006) Letter FR Notice (PDF)(2 pp, 141 K, published June 1, 2006, About PDF) |
Budgets found adequate through the adequacy review process. |
Utah
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Area
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Pollutant
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SIP Submission
|
Finding (date budgets apply)
|
Additional Information/ Comments
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Ogden | carbon monoxide | maintenance plan | Adequate (6/10/2005) Letter FR Notice (PDF)(2 pp, 144 K, published May 26, 2005, About PDF) |
Budgets found adequate through the adequacy review process. |
carbon monoxide | maintenance plan | Adequate (4/29/1999) | Determination made under old process | |
Provo (Utah County) | carbon monoxide | attainment demonstration | Adequate (8/4/2004) Letter FR Notice (PDF)(1 pp, 138 K, published July 20, 2004, About PDF) |
Budgets found adequate through the adequacy review process. |
PM10 | attainment demonstration (2010 & 2020 budgets) | Adequate (10/16/2002) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |
carbon monoxide | attainment demonstration | Inadequate (5/14/1999) | Determination made under old process | |
Salt Lake City Area | carbon monoxide | maintenance plan | Adequate (6/15/2005) Letter FR Notice (PDF)(1 pp, 139 K, published May 31, 2005, About PDF) |
Budgets found adequate through the adequacy review process. |
Utah portion of Logan UT-ID Area |
PM2.5 |
attainment demonstration |
Adequate (9/28/2015) |
Budgets found adequate through the adequacy review process |