Wyoming--1971 Sulfur Dioxide NAAQS (Primary and Secondary)----------------------------------------------------------------------------------------------------------------
Does not
Does not meet Cannot be Better than
Designated area meet primary secondary classified national
standards standards standards----------------------------------------------------------------------------------------------------------------Entire State............................................ ............ ............ ............ X----------------------------------------------------------------------------------------------------------------
Wyoming--Carbon Monoxide----------------------------------------------------------------------------------------------------------------
Designation Classification
Designated Area ---------------------------------------------------------------------------
Date \1\ Type Date \1\ Type----------------------------------------------------------------------------------------------------------------Statewide........................... ......... Unclassifiable/Attainment
Albany County
Big Horn County
Campbell County
Carbon County
Converse County
Crook County
Fremont County
Goshen County
Hot Springs County
Johnson County
Laramie County
Lincoln County
Natrona County
Niobrara County
Park County
Platte County
Sheridan County
Sublette County
Sweetwater County
Teton County
Uinta County
Washakie County
Weston County----------------------------------------------------------------------------------------------------------------\1\ This date is November 15, 1990, unless otherwise noted.
Wyoming--Ozone (1-Hour Standard)\2\----------------------------------------------------------------------------------------------------------------
Designation Classification
Designated area ---------------------------------------------------------------------------
Date \1\ Type Date \1\ Type----------------------------------------------------------------------------------------------------------------Statewide........................... ......... Unclassifiable/Attainment
Albany County
Big Horn County
Campbell County
Carbon County
Converse County
Crook County
Fremont County
Goshen County
Hot Springs County
Johnson County
Laramie County
Lincoln County
Natrona County
Niobrara County
Park County
Platte County
Sheridan County
Sublette County
Sweetwater County
Teton County
Uinta County
Washakie County
Weston County----------------------------------------------------------------------------------------------------------------\1\ This date is October 18, 2000, unless otherwise noted.\2\ The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Wyoming.
Wyoming--PM-10----------------------------------------------------------------------------------------------------------------
Designation Classification
Designated Area -------------------------------------------------------------------------
Date Type Date Type----------------------------------------------------------------------------------------------------------------Sheridan County:
City of Sheridan.................. 11/15/90 Nonattainment 11/15/90 Moderate.
Trona Industrial Area............. 11/15/90 Unclassifiable .........Campbell County (part)................ 11/15/90 UnclassifiableConverse County (part).
That area bounded by Township 40
through 52 North, and Ranges 69
through 73 West, inclusive of the
Sixth Principal Meridian, Campbell
and Converse Counties, excluding the
areas defined as the Pacific Power
and Light Area, the Hampshire Energy
Area, and the Kennecott/Puron PSD
Baseline Area--Powder River Basin.Campbell County (part), That 11/15/90 Unclassifiable
areabounded by NW1/4 of Section 27,
T50N, R71W, Campbell County, Wyoming--
Pacific Power and Light Area.Campbell County (part), That area 11/15/90 Unclassifiable .........
bounded by Section 6 excluding the
SW\1/4\; E\1/2\ Section 7; Section 17
excluding the SW\1/4\; Section 14
excluding the SE\1/4\; Sections 2, 3,
4, 5, 8, 9, 10, 11, 15, 16 of T48N,
R70W and Section 26 excluding the
NE\1/4\; SW\1/4\ Section 23; Sections
19, 20, 21, 22, 27, 28, 29, 30, 31,
32, 33, 34, 35 of T49N, R70W.--
Hampshire Energy Area.Campbell County (part), That area 11/15/90 Unclassifiable .........
described by the W\1/2\SW\1/4\
Section 18, W\1/2\NW\1/4\, NW\1/
4\SW\1/4\ Section 19, T47N, R70W, S\1/
2\ Section 13, N\1/2\, N\1/2\SW\1/4\,
N\1/2\SE\1/4\ Section 24, T47N,
R71W.--Kennecott/Puron PSD Baseline
Area.Rest of State\1\...................... 11/15/90 Unclassifiable .........----------------------------------------------------------------------------------------------------------------\1\ Denotes a single area designation for baseline area purposes.
Wyoming--1997 Annual PM2.5 NAAQS
[Primary and secondary]----------------------------------------------------------------------------------------------------------------
Designation \a\ Classification
Designated area -----------------------------------------------------------------------------
Date \1\ Type Date Type----------------------------------------------------------------------------------------------------------------Casper, WY:
Natrona County (part)......... .............. Unclassifiable/
Attainment..
The portion within the
City of Casper.Cheyenne, WY:
Laramie County (part)......... .............. Unclassifiable/
Attainment..
The portion within the
City of Cheyenne.Evanston, WY:
Uinta County (part)........... .............. Unclassifiable/
Attainment..
The portion within the
City of Evanston.Gillette, WY:
Campbell County (part)........ .............. Unclassifiable/
Attainment..
The portion within the
City of Gillette.Jackson, WY:
Teton County (part)........... .............. Unclassifiable/
Attainment..
The portion within the
City of Jackson.Lander, WY:
Fremont County (part)......... .............. Unclassifiable/
Attainment..
The portion within the
City of Lander.Laramie, WY:
Albany County (part).......... .............. Unclassifiable/
Attainment..
The portion within the
City of Laramie.Riverton, WY:
Fremont County (part)......... .............. Unclassifiable/
Attainment..
The portion within the
City of Riverton.Rock Springs, WY:
Sweetwater County (part)...... .............. Unclassifiable/
Attainment..
The portion within the
City of Rock Springs.Sheridan, WY:
Sheridan County (part)........ .............. Unclassifiable/
Attainment..
The portion within the
City of Sheridan.Rest of State:
Albany County (remainder)..... .............. Unclassifiable/
Attainment..
Big Horn County............... .............. Unclassifiable/
Attainment..
Campbell County............... .............. Unclassifiable/
Attainment..
Carbon County................. .............. Unclassifiable/
Attainment..
Converse County............... .............. Unclassifiable/
Attainment..
Crook County.................. .............. Unclassifiable/
Attainment..
Fremont County (remainder).... .............. Unclassifiable/
Attainment..
Goshen County................. .............. Unclassifiable/
Attainment..
Hot Springs County............ .............. Unclassifiable/
Attainment..
Johnson County................ .............. Unclassifiable/
Attainment..
Laramie County (remainder).... .............. Unclassifiable/
Attainment..
Lincoln County................ .............. Unclassifiable/
Attainment..
Natrona County (remainder).... .............. Unclassifiable/
Attainment..
Niobrara County............... .............. Unclassifiable/
Attainment..
Park County................... .............. Unclassifiable/
Attainment..
Platte County................. .............. Unclassifiable/
Attainment..
Sheridan County (remainder)... .............. Unclassifiable/
Attainment..
Sublette County............... .............. Unclassifiable/
Attainment..
Sweetwater County............. .............. Unclassifiable/
Attainment..
Teton County (remainder)...... .............. Unclassifiable/
Attainment..
Uinta County (remainder)...... .............. Unclassifiable/
Attainment..
Washakie County............... .............. Unclassifiable/
Attainment..
Weston County................. .............. Unclassifiable/
Attainment..----------------------------------------------------------------------------------------------------------------\a\ Includes Indian Country located in each county or area, except as otherwise specified.\1\ This date is 90 days after January 5, 2005, unless otherwise noted.
Wyoming--2012 Annual PM2.5 NAAQS
[Primary]--------------------------------------------------------------------------------------------------------------------------------------------------------
Designation Classification
Designated area \1\ ---------------------------------------------------------------------------------------------------------------
Date \2\ Type Date \2\ Type--------------------------------------------------------------------------------------------------------------------------------------------------------Statewide:
Albany County....................... ........... Unclassifiable/Attainment................
Big Horn County..................... ........... Unclassifiable/Attainment................
Campbell County..................... ........... Unclassifiable/Attainment................
Carbon County....................... ........... Unclassifiable/Attainment................
Converse County..................... ........... Unclassifiable/Attainment................
Crook County........................ ........... Unclassifiable/Attainment................
Fremont County...................... ........... Unclassifiable/Attainment................
Goshen County....................... ........... Unclassifiable/Attainment................
Hot Springs County.................. ........... Unclassifiable/Attainment................
Johnson County...................... ........... Unclassifiable/Attainment................
Laramie County...................... ........... Unclassifiable/Attainment................
Lincoln County...................... ........... Unclassifiable/Attainment................
Natrona County...................... ........... Unclassifiable/Attainment................
Niobrara County..................... ........... Unclassifiable/Attainment................
Park County......................... ........... Unclassifiable/Attainment................
Platte County....................... ........... Unclassifiable/Attainment................
Sheridan County..................... ........... Unclassifiable/Attainment................
Sublette County..................... ........... Unclassifiable/Attainment................
Sweetwater County................... ........... Unclassifiable/Attainment................
Teton County........................ ........... Unclassifiable/Attainment................
Uinta County........................ ........... Unclassifiable/Attainment................
Washakie County..................... ........... Unclassifiable/Attainment................
Weston County....................... ........... Unclassifiable/Attainment................--------------------------------------------------------------------------------------------------------------------------------------------------------\1\ Includes areas of Indian country located in each county or area, except as otherwise specified.\2\ This date is April 15, 2015, unless otherwise noted.
Wyoming--1997 24-Hour PM2.5 NAAQS
[Primary and secondary]----------------------------------------------------------------------------------------------------------------
Designation \a\ Classification
Designated area -----------------------------------------------------------------------------
Date \1\ Type Date Type----------------------------------------------------------------------------------------------------------------Casper, WY:
Natrona County (part)......... .............. Unclassifiable/
Attainment.
The portion within the
City of Casper.Cheyenne, WY:
Laramie County (part)......... .............. Unclassifiable/
Attainment.
The portion within the
City of Cheyenne.Evanston, WY:
Uinta County (part)........... .............. Unclassifiable/
Attainment.
The portion within the
City of Evanston.Gillette, WY:
Campbell County (part)........ .............. Unclassifiable/
Attainment.
The portion within the
City of Gillette.Jackson, WY:
Teton County (part)........... .............. Unclassifiable/
Attainment.
The portion within the
City of Jackson.Lander, WY:
Fremont County (part)......... .............. Unclassifiable/
Attainment.
The portion within the
City of Lander.Laramie, WY:
Albany County (part).......... .............. Unclassifiable/
Attainment.
The portion within the
City of Laramie.Riverton, WY:
Fremont County (part)......... .............. Unclassifiable/
Attainment.
The portion within the
City of Riverton.Rock Springs, WY:
Sweetwater County (part)...... .............. Unclassifiable/
Attainment.
The portion within the
City of Rock Springs.Sheridan, WY:
Sheridan County (part)........ .............. Unclassifiable/
Attainment.
The portion within the
City of Sheridan.Rest of State:
Albany County (remainder)..... .............. Unclassifiable/
Attainment.
Big Horn County............... .............. Unclassifiable/
Attainment.
Campbell County............... .............. Unclassifiable/
Attainment.
Carbon County................. .............. Unclassifiable/
Attainment.
Converse County............... .............. Unclassifiable/
Attainment.
Crook County.................. .............. Unclassifiable/
Attainment.
Fremont County (remainder).... .............. Unclassifiable/
Attainment.
Goshen County................. .............. Unclassifiable/
Attainment.
Hot Springs County............ .............. Unclassifiable/
Attainment.
Johnson County................ .............. Unclassifiable/
Attainment.
Laramie County (remainder).... .............. Unclassifiable/
Attainment.
Lincoln County................ .............. Unclassifiable/
Attainment.
Natrona County (remainder).... .............. Unclassifiable/
Attainment.
Niobrara County............... .............. Unclassifiable/
Attainment.
Park County................... .............. Unclassifiable/
Attainment.
Platte County................. .............. Unclassifiable/
Attainment.
Sheridan County (remainder)... .............. Unclassifiable/
Attainment.
Sublette County............... .............. Unclassifiable/
Attainment.
Sweetwater County............. .............. Unclassifiable/
Attainment.
Teton County (remainder)...... .............. Unclassifiable/
Attainment.
Uinta County (remainder)...... .............. Unclassifiable/
Attainment.
Washakie County............... .............. Unclassifiable/
Attainment.
Weston County................. .............. Unclassifiable/
Attainment.----------------------------------------------------------------------------------------------------------------\a\ Includes Indian Country located in each county or area, except as otherwise specified.\1\ This date is 90 days after January 5, 2005, unless otherwise noted.
Wyoming--2006 24-Hour PM2.5 NAAQS
[Primary and secondary]----------------------------------------------------------------------------------------------------------------
Designation \a\ Classification
Designated area -----------------------------------------------------------------------------
Date \1\ Type Date Type----------------------------------------------------------------------------------------------------------------Casper, WY:
Natrona County (part)......... .............. Unclassifiable/
Attainment.
The portion within the
City of Casper.Cheyenne, WY:
Laramie County (part)......... .............. Unclassifiable/
Attainment.
The portion within the City of
Cheyenne..Evanston, WY:
Uinta County (part)........... .............. Unclassifiable/
Attainment.
The portion within the
City of Evanston.Gillette, WY:
Campbell County (part)........ .............. Unclassifiable/
Attainment.
The portion within the
City of Gillette.Jackson, WY:
Teton County (part)........... .............. Unclassifiable/
Attainment.
The portion within the
City of Jackson.Lander, WY:
Fremont County (part)......... .............. Unclassifiable/
Attainment.
The portion within the
City of Lander.
Laramie, WY:
Albany County (part).......... .............. Unclassifiable/
Attainment.
The portion within the
City of Laramie.Riverton, WY:
Fremont County (part)......... .............. Unclassifiable/
Attainment.
The portion within the
City of Riverton.Rock Springs, WY:
Sweetwater County (part)...... .............. Unclassifiable/
Attainment.
The portion within the
City of Rock Springs.Sheridan, WY:
Sheridan County (part)........ .............. Unclassifiable/
Attainment.
The portion within the
City of Sheridan.Rest of State:
Albany County (remainder)..... .............. Unclassifiable/
Attainment.
Big Horn County............... .............. Unclassifiable/
Attainment.
Campbell County............... .............. Unclassifiable/
Attainment.
Carbon County................. .............. Unclassifiable/
Attainment.
Converse County............... .............. Unclassifiable/
Attainment.
Crook County.................. .............. Unclassifiable/
Attainment.
Fremont County (remainder).... .............. Unclassifiable/
Attainment.
Goshen County................. .............. Unclassifiable/
Attainment.
Hot Springs County............ .............. Unclassifiable/
Attainment.
Johnson County................ .............. Unclassifiable/
Attainment.
Laramie County (remainder).... .............. Unclassifiable/
Attainment.
Lincoln County................ .............. Unclassifiable/
Attainment.
Natrona County (remainder).... .............. Unclassifiable/
Attainment.
Niobrara County............... .............. Unclassifiable/
Attainment.
Park County................... .............. Unclassifiable/
Attainment.
Platte County................. .............. Unclassifiable/
Attainment.
Sheridan County (remainder)... .............. Unclassifiable/
Attainment.
Sublette County............... .............. Unclassifiable/
Attainment.
Sweetwater County............. .............. Unclassifiable/
Attainment.
Teton County (remainder)...... .............. Unclassifiable/
Attainment.
Uinta County (remainder)...... .............. Unclassifiable/
Attainment..
Washakie County............... .............. Unclassifiable/
Attainment.
Weston County................. .............. Unclassifiable/
Attainment.----------------------------------------------------------------------------------------------------------------\a\ Includes Indian Country located in each county or area, except as otherwise specified.\1\ This date is 30 days after November 13, 2009, unless otherwise noted.
Wyoming--NO2 (1971 Annual Standard)------------------------------------------------------------------------
Cannot be
Does not classified or
Designated area meet primary better than
standards national
standards------------------------------------------------------------------------Entire State............................ ............ X------------------------------------------------------------------------
Wyoming--NO2 (2010 1-Hour Standard)----------------------------------------------------------------------------------------------------------------
Designation \a\
Designated area ------------------------------------------------------------------
Date \1\ Type----------------------------------------------------------------------------------------------------------------Albany County................................ ........... Unclassifiable/Attainment.Big Horn County.............................. ........... Unclassifiable/Attainment.Campbell County.............................. ........... Unclassifiable/Attainment.Carbon County................................ ........... Unclassifiable/Attainment.Converse County.............................. ........... Unclassifiable/Attainment.Crook County................................. ........... Unclassifiable/Attainment.Fremont County............................... ........... Unclassifiable/Attainment.Goshen County................................ ........... Unclassifiable/Attainment.Hot Springs County........................... ........... Unclassifiable/Attainment.Johnson County............................... ........... Unclassifiable/Attainment.Laramie County............................... ........... Unclassifiable/Attainment.Lincoln County............................... ........... Unclassifiable/Attainment.Natrona County............................... ........... Unclassifiable/Attainment.Niobrara County.............................. ........... Unclassifiable/Attainment.Park County.................................. ........... Unclassifiable/Attainment.Platte County................................ ........... Unclassifiable/Attainment.Sheridan County.............................. ........... Unclassifiable/Attainment.Sublette County.............................. ........... Unclassifiable/Attainment.Sweetwater County............................ ........... Unclassifiable/Attainment.Teton County................................. ........... Unclassifiable/Attainment.Uinta County................................. ........... Unclassifiable/Attainment.Washakie County.............................. ........... Unclassifiable/Attainment.Weston County................................ ........... Unclassifiable/Attainment.----------------------------------------------------------------------------------------------------------------\a\ Includes Indian Country located in each county or area, except as otherwise specified.\1\ This date is 90 days after October 31, 2011, unless otherwise noted.
Wyoming--1997 8-Hour Ozone NAAQS (Primary and Secondary)----------------------------------------------------------------------------------------------------------------
Designation \a\ Category/classification
Designated area ---------------------------------------------------------------------------
Date \1\ Type Date \1\ Type----------------------------------------------------------------------------------------------------------------Statewide........................... ......... Unclassifiable/Attainment
Albany County................... ......... Unclassifiable/Attainment
Big Horn County................. ......... Unclassifiable/Attainment
Campbell County................. ......... Unclassifiable/Attainment
Carbon County................... ......... Unclassifiable/Attainment
Converse County................. ......... Unclassifiable/Attainment
Crook County.................... ......... Unclassifiable/Attainment
Fremont County.................. ......... Unclassifiable/Attainment
Goshen County................... ......... Unclassifiable/Attainment
Hot Springs County.............. ......... Unclassifiable/Attainment
Johnson County.................. ......... Unclassifiable/Attainment
Laramie County.................. ......... Unclassifiable/Attainment
Lincoln County.................. ......... Unclassifiable/Attainment
Natrona County.................. ......... Unclassifiable/Attainment
Niobrara County................. ......... Unclassifiable/Attainment
Park County..................... ......... Unclassifiable/Attainment
Platte County................... ......... Unclassifiable/Attainment
Sheridan County................. ......... Unclassifiable/Attainment
Sublette County................. ......... Unclassifiable/Attainment
Sweetwater County............... ......... Unclassifiable/Attainment
Teton County.................... ......... Unclassifiable/Attainment
Uinta County.................... ......... Unclassifiable/Attainment
Washakie County................. ......... Unclassifiable/Attainment
Weston County................... ......... Unclassifiable/Attainment----------------------------------------------------------------------------------------------------------------\a\ Includes Indian Country located in each county or area, except as otherwise specified.\1\ This date is June 15, 2004, unless otherwise noted.
Wyoming--2008 8-Hour Ozone NAAQS (Primary and secondary)----------------------------------------------------------------------------------------------------------------
Designation Classification
Designated area ---------------------------------------------------------------------------
Date \1\ Type Date \1\ Type----------------------------------------------------------------------------------------------------------------Upper Green River Basin Area, WY: ......... Nonattainment ......... Marginal.
\2\.
Lincoln County (part)
The area of the county north
and east of the boundary
defined by a line starting
at the point defined by the
intersection of the
southwest corner Section 30
Range (R) 115 West Township
(T) 27N and the northwest
corner of Section 31 R 115
West T27N of Sublette
County at Sublette County's
border with Lincoln County.
From this point the
boundary moves to the west
500 feet to Aspen Creek.
The boundary follows the
centerline of Aspen Creek
downstream to the
confluence of Aspen Creek
and Fontenelle Creek (in
R116W T26N, Section 1).
From this point the
boundary moves generally to
the south along the
centerline of Fontenelle
Creek to the confluence of
Fontenelle Creek and Roney
Creek (in R115W T24N
Section 6). From the
confluence, the boundary
moves generally to the east
along the centerline of
Fontenelle Creek and into
the Fontenelle Reservoir
(in R112W T24N Section 6).
The boundary moves east
southeast along the
centerline of the
Fontenelle Reservoir and
then toward the south along
the centerline of the Green
River to where the Green
River in R111W T24N Section
31 crosses into Sweetwater
County.
Sublette County
Sweetwater County (part)
The area of the county west
and north of the boundary
which begins at the
midpoint of the Green
River, where the Green
River enters Sweetwater
County from Lincoln County
in R111W T24N Section 31.
From this point, the
boundary follows the center
of the channel of the Green
River generally to the
south and east to the
confluence of the Green
River and the Big Sandy
River (in R109W T22N
Section 28). From this
point, the boundary moves
generally north and east
along the centerline of the
Big Sandy River to the
confluence of the Big Sandy
River with Little Sandy
Creek (in R106W T25N
Section 33). The boundary
continues generally toward
the northeast along the
centerline of Little Sandy
Creek to the confluence of
Little Sandy Creek and
Pacific Creek (in R106W
T25N Section 24). From this
point, the boundary moves
generally to the east and
north along the centerline
of Pacific Creek to the
confluence of Pacific Creek
and Whitehorse Creek (in
R103W T26N Section 10).
From this point the
boundary follows the
centerline of Whitehorse
Creek generally to the
northeast until it reaches
the eastern boundary of
Section 1 R103W T26N. From
the point where Whitehorse
Creek crosses the eastern
section line of Section 1
R103W T26N, the boundary
moves straight north along
the section line to the
southeast corner of Section
36 R103W T27N in Sublette
County where the boundary
ends.Rest of State and Rest of Indian ......... Unclassifiable/Attainment
Country.----------------------------------------------------------------------------------------------------------------\1\ This date is July 20, 2012, unless otherwise noted.\2\ Excludes Indian country located in each area, unless otherwise noted.
Wyoming--2008 Lead NAAQS----------------------------------------------------------------------------------------------------------------
Designation for the 2008 NAAQS \a\
Designated area ------------------------------------------------------------------
Date \1\ Type----------------------------------------------------------------------------------------------------------------Whole State.................................. .............. Unclassifiable/Attainment.----------------------------------------------------------------------------------------------------------------\a\ Includes Indian Country located in each county or area, except as otherwise specified.\1\ December 31, 2011 unless otherwise noted. [43 FR 8964, Mar. 3, 1978]
Editorial Note: For Federal Register citations affecting Sec. 81.351 see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.fdsys.gov.