Designated area
| Designation
a
| Classification
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Date
1
| Type
| Date
| Type
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Box Elder County, UT (part): | | | | |
Box Elder County (except Brigham City) | | Unclassifiable/Attainment
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Brigham City, UT: | | | | |
Box Elder County (part) | | Unclassifiable/Attainment
| | |
The area surrounding Brigham City, as described by the following Townships or the portions of the following Townships in Box Elder County: T9N 2W, T9N R1W, T8N 2W | | | | |
Cache County, UT (part): | | | | |
Cache County (except Lower Cache Valley) | | Unclassifiable/Attainment
| | |
Davis County, UT (part): | | | | |
Davis County (except Wasatch Front) | | Unclassifiable/Attainment
| | |
Grantsville, UT: | | | | |
Tooele County (part) | | Unclassifiable/Attainment
| | |
The area surrounding Grantsville, as described by the following Townships or the portions of the following Townships in Tooele County: T2S R6W, T2S R5W, T2S R4W, T3S R6W, T3S R5W, T3S R4W, T4S R6W, T4S R5W, T4S R4W | | | | |
Lower Cache Valley, UT: | | | | |
Cache County (part) | | Unclassifiable/Attainment
| | |
The Cache Valley, below 6500 ft. msl. This area is described by the following list of Townships or the portions of the following Townships in Cache County: T15N R1E, T15N R2W, T15N R1W, T14N R2W, T14N R1W, T14N R1E, T13N R2W, T13N R1W, T13N R1E, T12N R2W, T12N R1W, T12N R1E, T11N R1W, T11N R1E, T10N R1W, T10N R1E, T9N R1E | | | | |
Salt Lake County, UT (part): | | | | |
Salt Lake County (except Wasatch Front) | | Unclassifiable/Attainment
| | |
Tooele County, UT (part): | | | | |
Tooele County (remainder) | | Unclassifiable/Attainment
| | |
Utah County, UT (part): | | | | |
Utah County (except Wasatch Front) | | Unclassifiable/Attainment
| | |
Wasatch Front, UT: | | | | |
Davis County (part) | | Unclassifiable/Attainment
| | |
The portion of the Wasatch Front residing in Davis County, as described by the following Townships or the portions of the following Townships in Davis County: T5N R3W, T5N R2W, T5N R1W, T4N R2W, T4N R1W, T3N R1W, T3N R1E, T2N R1W, T2N R1E, T1N R1W, T1N R1E. | | | | |
Salt Lake County (part) | | Unclassifiable/Attainment
| | |
The portion of the Wasatch Front residing in Salt Lake County, as described by the following Townships or the portions of the following Townships in Salt Lake County: T1N R2W, T1N R1W, T1N R1E, T1S R3W, T1S R2W, T1S R1W, T1S R1E, T2S R3W, T2S R2W, T2S R1W, T2S R1E, T3S R3W, T3S R2W, T3S R1W, T3S R1E, T4S R3W, T4S R2W, T4S R1W, T4S R1E. | | | | |
Utah County (part) | | Unclassifiable/Attainment
| | |
The portion of the Wasatch Front residing in Utah County, as described by the following Townships or the portions of the following Townships in Utah County: T4S R2W, T4S R1W, T4S R1E, T4S R2E, T5S R2W, T5S R1W, T5S R1E, T5S R2E, T6S R3W, T6S R2W, T6S R1W, T6S R2E, T6S R3E, T6S R1E, T7S R3W, T7S R2W, T7S R1W, T7S R1E, T7S R2E, T7S R3E, T8S R3W, T8S R2W, T8S R1W, T8S R3E, T8S R2E, T8S R1E, T9S R3W, T9S R2W, T9S R1E, T9S R3E, T9S R2E, T9S R1W, T10S 2W, T10S R2E, T10S R1E, T10S R1W, T1S R2W, T11S R1W, T12S R2W. | | | | |
Weber County (part) | | Unclassifiable/Attainment
| | |
The portion of the Wasatch Front residing in Weber County, as described by the following Townships or the portions of the following Townships in Weber County: T7N R2W, T7N R1W, T7N R3W, T6N R3W, T6N R2W, T6N R1W, T5N R3W, T5N R2W, T5N R1W | | | | |
Weber County, UT (part): | | | | |
Weber County (except Wasatch Front) | | Unclassifiable/Attainment
| | |
Rest of State: | | | | |
Beaver County | | Unclassifiable/Attainment
| | |
Carbon County | | Unclassifiable/Attainment
| | |
Daggett County | | Unclassifiable/Attainment
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Duchesne County | | Unclassifiable/Attainment
| | |
Emery County | | Unclassifiable/Attainment
| | |
Garfield County | | Unclassifiable/Attainment
| | |
Grand County | | Unclassifiable/Attainment
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Iron County | | Unclassifiable/Attainment
| | |
Juab County | | Unclassifiable/Attainment
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Kane County | | Unclassifiable/Attainment
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Millard County | | Unclassifiable/Attainment
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Morgan County | | Unclassifiable/Attainment
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Piute County | | Unclassifiable/Attainment
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Rich County | | Unclassifiable/Attainment
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San Juan County | | Unclassifiable/Attainment
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Sanpete County | | Unclassifiable/Attainment
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Sevier County | | Unclassifiable/Attainment
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Summit County | | Unclassifiable/Attainment
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Uintah County | | Unclassifiable/Attainment
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Wasatch County | | Unclassifiable/Attainment
| | |
Washington County | | Unclassifiable/Attainment
| | |
Wayne County | | Unclassifiable/Attainment
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