(1) Area 1 description. (Okanogan County) An area starting at the intersection of the east boundary line of Section 24, T29N, R25E, and the Columbia River; thence north 19 miles more or less to the southwest corner of Section 7, T32N, R26E; thence east three miles to the southeast corner of Section 9; thence north two miles to the northeast corner of Section 4; thence east three miles more or less to the southeast corner of Section 36, T33N, R26E; thence north four miles to the southwest corner of Section 7, T33N, R27E; thence east two miles to the southeast corner of Section 8; thence north six miles to the northeast corner of Section 17, T34N, R27E; thence west eight miles to the northwest corner of Section 18, T34N, R26N; thence south four miles to the southwest corner of Section 31; thence west three miles to the northwest corner of Section 3, T33N, R25E; thence south four miles to the southwest corner of Section 22, T33N, R25E; thence west three miles to the northwest corner of Section 30; thence south two miles to the southwest corner of Section 31; thence west two miles to the northwest corner of Section 2, T32N, R24E; thence south ten miles to the southwest corner of Section 23, T31N, R24E; thence west four miles to the northwest corner of Section 30; thence south seven miles more or less to the north bank of the Columbia River; thence easterly along the north bank of the Columbia River to the point of beginning.

(2) Area 1 restrictions. The use or application of low volatile formulations of use restricted herbicides is prohibited on and after April 15th through October 31st of each year.