18 AAC 50.025. Visibility and other special protection areas

(a) Visibility special protection areas are established to prevent impairment of visibility. The following areas are designated visibility special protection areas:

(1) Mt. Deborah and the Alaska Range East, as viewed from approximately the Savage River Campground area;

(2) Mt. McKinley, Alaska Range, and the Interior Lowlands, as viewed from the vicinity of Wonder Lake; and

(3) geographic areas classified as Class I areas under 18 AAC 50.015(c) .

(b) A wood smoke control area is a geographic location where a wood-burning activity has resulted in two or more discontinuous 24-hour periods when the ambient exposures of PM-10 solely from this activity have reached or exceeded 150 micrograms per cubic meter of air. The Mendenhall Valley area of Juneau is designated a wood smoke control area.

(c) Special protection areas for sulfur dioxide are established to prevent the violation of the ambient air quality standard and maximum allowable ambient concentration for sulfur dioxide. The following areas are designated as sulfur dioxide special protection areas:

(1) in the Unalaska area, the land and water areas with a 3.4-mile radius of the intersection of 53УИ 53' 4" N. latitude, 166УИ 32' 11" W. longitude; and

(2) in the St. Paul Island area, the land and water areas south of UTM Northing 6333.00 kilometers (57УИ 8' 29" N. latitude) and within 0.6 kilometers of St. Paul Island.

History: Eff. 1/18/97, Register 141; am 6/21/98, Register 146

Authority: AS 46.03.020

AS 46.14.010

AS 46.14.030

Editor's note: Complete descriptions of the special protection areas designated in this section, including maps, are provided in the state air quality control plan adopted by reference in 18 AAC 50.030.

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