Particulate Matter (PM-10) Maintenance Areas

Detailed Description of Certain Area Boundaries for Partial Counties
As of November 13, 2009

ARIZONA

Mohave Co, AZ

Mohave Co

The area bounded as follows:

Bullhead City: T21N, R20-21W, excluding Lake Mead National Recreation Area; T20N, R20- 22W; T19N, R21-22W excluding Fort Mohave Indian Reservation.

Payson, AZ

Gila Co

The area bounded as follows:

T10N, Sections 1-3, 10-15, 22-27, and 34-36 of R9E; T11N, Sections 1-3, 10-15, 22-27, and 34-36 of R9E; T10-11N, R10E; T10N, Sections 4-9, 16-21, and 28-33 of R11E; T11N, Sections 4-9, 16-21, and 28-33 of R11E.

CALIFORNIA

Indian Wells, CA

Kern Co

Searles Valley planning area Hydrologic Unit #18090205

COLORADO

Aspen, CO

Pitkin Co

The area encompassed by the following Parcel ID numbers, as defined by the Pitkin County Planning Department:

2737-29, 2737-28, 2737-21, 2737-20, 2737-19, 2737-18, 2737-17, 2737-08, 2737-07, 2737-06, 2735-22, 2735-15, 2735-14, 2735-13, 2735-12, 2735-11, 2735-10, 2735-03, 2735-02, 2735-01, 2641-31, 2643-36, 2643-35, 2643-34, 2643-27, 2643-26.

Canon City, CO

Fremont Co

The area bounded as follows:

Township 18S-Range 70W: All of sections 21, 22, 27, 28, 33, and 34; the E 1/2, NENW, NESW, SENW, SESW quarters of sections 20, 29, 32; and the W 1/2 of sections 23, 26, and 35; Township 19S-Range 70W: All of sections 3, 4, 9, 10; E 1/2, NENW, NESW, SENW, SESW quarters of sections 5 and 8; W 1/2 of sections 2 and 11.

Denver Metro, CO

Adams Co

Denver Metropolitan area: Boulder County (excluding the Rocky Mountain National Park) and the Colorado auto mobile inspection and reajustment program portions of Adams and Arapahoe Counties.

Arapahoe Co

Denver Metropolitan area: Boulder County (excluding the Rocky Mountain National Park) and the Colorado auto mobile inspection and reajustment program portions of Adams and Arapahoe Counties.

Boulder Co

Denver Metropolitan area: Boulder County (excluding the Rocky Mountain National Park) and the Colorado auto mobile inspection and reajustment program portions of Adams and Arapahoe Counties.

Pagosa Springs, CO

Archuleta Co

Pagosa Springs Area, bounded as follows:

Township 35N-Range 2W: Sections 13, 14, 15; Section 23 NE, N 1/2 SE; Section 24 all except SWSW; Section 25 N 1/2 NE, NENW. Township 35N-Range 1W: Section 18 W 1/2

Steamboat Springs, CO

Routt Co

The Steamboat Springs Area Airshed as adopted by the Routt County Commissioners on May 28, 1991, and the Colorado Air Quality Control Commission on June 20, 1991.

Telluride, CO

San Miguel Co

The area bounded as follows:

The Telluride nonattainment area begins at the intersection of Colorado State Highway 145 and the Telluride service area boundary, as it existed in 1991. The western edge of the nonattainment area until it meets Remine Creek is defined as follows: A tract of land located in a portion of the west one-half of Section 28 and the east one-half of Section 29, Township 43 North, Range 9 west, of the New Mexico Principal Meridian, County of San Miguel, State of Colorado, described as follows: Beginning at the southwest corner of the said Section 28; Thence N 89 36' 00'' W. 292.70 Feet; Thence S 04 05'12'' W. 538.63 Feet; Thence N 03 29'42'' W. 780.19 Feet; Thence N 22 15'00"E. 3344.16 Feet; Thence S 51 51' 49" E. 570.44 Feet; Thence S 03 15'36" E. 1106.22 Feet; Thence S 45 24'42" E. 546.96 Feet; Thence S 28 41'12" W. 549.62 Feet; Thence S 29 40' 09" E. 169.68 Feet; Thence S 44 30'03" W. 649.51 Feet; Thence S 85 54'00" E. 660.00 Feet; Thence S 04 06'00" W. 660.00 Feet; Thence N 89 56' 00" E. 1318.68 Feet; to the true point of beginning containing 11249 acres as described above. Then, at Remine Creek, the nonattainment boundary follows the service area boundary for 9.65 miles to the 9,200 foot contour line. The boundary then intersects Bear Creek. Here the nonattainment boundary diverges from the service area boundary (9,200 foot contour line). The nonatttainment boundary continues in a west, southwest direction for 0.92 miles from the intersection of the 9,200 foot contour line and Bear Creek to the top of ski lift number 9 in the Telluride Ski Area at an elevation of about 11,900 feet. The boundary then shifts and runs in a north- westerly direction for 0.83 miles from the top of lift 9 to the top of lift 7, which is located at an elevation of 10,490 feet. From the top of lift 7, the nonattainment boundary continues in a north-westerly direction for 0.5 miles to the intersection of lift 3 with the 10,000 foot control line. The nonattainment boundary follows the 10,000 foot contour line in a south, south-west direction for 3.2 miles, until it intersects Skunk Creek. Here the boundary diverges from the 10,000 foot contour line and follows Skunk Creek in a northerly direction for 2.25 miles. At the intersection of Skunk Creek and Colorado State Highway 145, the nonattainment boundary leaves the creek and follows Highway 145 in a northerly direction until it meets the service area boundary as it existed prior to changes adopted in 1991.

IDAHO

Boise-Northern Ada County, ID

Ada Co

The area bounded as follows:

Northern Boundary-Beginning at a point in the center of the channel of the Boise River, where the line between sections 15 and 16 in Township 3 north (T3N), range 4 east (R4E), crosses said Boise River; thence, west down the center of the channel of the Boise River to a point opposite the mouth of More's Creek; thence, in a straight line north 44 degrees and 38 minutes west until the said line intersects the north line of T5N (12 Ter. Ses. 67); thence west to the northwest corner T5N, R1W. Western Boundary-Thence, south to the northwest corner of T3N, R1W; thence east to the northwest corner of section 4 of T3N, R1W; thence south to the southeast corner of section 32 of T2N, R1W; thence, west to the northwest corner of T1N, R1W; thence, south to the southwest corner of section 32 of T2N, R1W; thence, west to the northwest corner of T1N, R1W; thence south to the southwest corner of T1N, R1W. Southern Boundary-Thence, east to southwest corner of section 33 of T1N, R4E. Eastern Boundary-Thence, north along the north and south center line of Townships T1N, R4E, T2N, R4E, and T3N, R4E, Boise Meridian to the beginning point in the center of the channel of the Boise River.

Portneuf Valley, ID

Bannock Co

The area encompasses 2 counties and is bounded as follows:

State Lands T.5S, R.34E Sections 25-36; T.5S, R.35E Section 31; T.6S, R.34E Sections 1-36; T.6S, R.35E Sections 5-9, 16-21, 28-33 Plus the West 1/2 of Sections 10, 15, 22, 27, 34 T.7S, R.34E Sections 1-4, 10-14, and 24 T.7S, R.35E Sections 4-9, 16-21, 28-33 Plus the West 1/2 of Sections 3, 10, 15, 22, 27, 34 T.8S, R.35E, Section 4 Plus the West 1/2 of Section 3

Power Co

The area encompasses 2 counties and is bounded as follows:

ILLINOIS

Oglesby, IL

La Salle Co

Oglesby including the following Townships, ranges, and sections:

T32N, R1E, S1; T32N, R2E, S6; T33N, R1E, S24; T33N, R1E, S25; T33N, R2E, S30; T33N, R2E, S31; and T33N, R1E, S36

Southeast Chicago, IL

Cook Co

The area bounded on the north by 79th Street, on the west by Interstate 57 between Sibley Boulevard and Interstate 94 and by Interstate 94 between Interstate 57 and 79th Street, on the south by Sibley Boulevard, and on the east by the Illinois/Indiana State line.

INDIANA

Vermillion Co, IN

Vermillion Co

Part of Clinton Township; including sections 15, 16, 21, 22, 27, 28, 33 and 34.

MICHIGAN

Wayne Co, MI

Wayne Co

The area bounded by Michigan Avenue from its intersection with I-75 west to I-94 southwest to Greenfield Road, Greenfield Road south to Schaefer Road, Schaefer Road south and east to Jefferson Avenue, Jefferson Avenue south (Biddle Avenue through the city of Wyandotte) to Sibley Avenue, Sibley Avenue west to Fort Street, Fort Street south to King Road, King Road east to Jefferson Avenue, Jefferson Avenue south to Helen Road, Helen Road east extended to Trenton Channel, Tenton Channel north to the Detroit River, the Detroit River north to the Ambassador Bridge, Ambassador Bridge to I-75, I-75 to Michigan Avenue.

MINNESOTA

Olmsted Co, MN

Olmsted Co

The area bounded on the south by U.S. Highway 14; on the west by U.S. Highway 52; on the north by 14th Street N.W. between U.S. Highway 52 and U.S. Route 63 (Broadway Avenue), U.S. Route 63 north to Northern Heights Drive, N.E., and Northern Heights Drive N.E. extended east to the 1990 City of Rochester limits; and on the east by the 1990 City of Rochester limits.

Ramsey Co, MN

Ramsey Co

The area bounded by the Mississippi River from Lafayette to Route 494, Route 494 east to Route 61, Route 61 north to I-94, I-94 west to Lafayette, and Lafayette south to the Mississippi River.

OHIO

Jefferson Co, OH

Jefferson Co

The area bounded by Market Street (State Route 43) from the West Virginia/Ohio border west to Sunset Blvd. (U.S. Route 22), Sunset Blvd. west to the Steubenville Township/Cross Creek Township boundary, the Township boundary south to the Steubenville Corporation limit, the corporation boundary east to State Route 7, State Route 7 South to the Steubenville Township/Wells Township boundary, the Township boundary east to the West Virginia/Ohio border, and North on the border to Market Street.

OREGON

Medford-Ashland, OR

Jackson Co

Medford-Ashland Air Quality Maintenance Area (including White City)

PENNSYLVANIA

Clairton & 4 Boroughs, PA

Allegheny Co

The area including Liberty, Lincoln, Port Vue, and Glassport Boroughs and the City of Clairton.

WASHINGTON

Kent, WA

King Co

The City of Kent and a portion of the Green River valley bounded on east and west by the 100-foot contour, on the north by South 212th Street, and on the south by Highway 516.

King Co, WA

King Co

The portion of the City of Seattle bounded on the east by I-5/East Duwamish Greenbelt, on the south by 104th Street, on the west by the West Duwamish Greenbelt north to Fairmont Avenue, S.W., north on Fairmont to Elliott Bay, and Dearborn Street from Elliott Bay to I-5.

Pierce Co, WA

Pierce Co

Tacoma metropolitan area bounded on the north by Marine View Drive from Commencement Bay east to the 100-foot contour, southeast along the 100-foot contour to 64th Avenue East, south along 64th Avenue East extended to I-5, I-5 west to the 100-foot contour near Pacific Avenue, and north along the 100-foot contour to Commencement Bay.

Spokane Co, WA

Spokane Co

The area bounded on the south by a line from Universal Transmercator (UTM) coordinate 489000mE, 5271000mN west to 458000mE, 5271000mN, thence north along a line to coordinate 458000mE, 5288000mN, thence east to 463000mE, 5288000mN, thence north to 463000mE, 5292000mN, thence east to 481000mE, 5292000mN, thence south to 481000mE, 5288000mN, thence east to 489000mE, 5288000mN, thence south to the beginning coordinate 489000mE, 5271000mN.

Yakima Co, WA

Yakima Co

The area bounded on the south by a line from UTM coordinate 694000mW, 5157000mN, west to 681000mW, 5157000mN, thence north along a line to coordinate 681000mN, 5172000mN, thence east to 694000mW, 5172000mN, thence south to the beginning coordinate 694000mW, 5157000mN, excluding the area within the exterior boundary of the Yakama Indian Reservation

WEST VIRGINIA

Follansbee, WV

Brooke Co

Follansbee area bounded on the north by the Market Street Bridge, on the east by West Virginia Route #2, on the south by the extension of the southern boundary of Steubenville Township in Jefferson County, Ohio, and on the west by the Ohio/West Virginia border.