(1) Area 6 description. An area including all lands lying within a boundary line beginning at the northwest corner of Section 30, T10N, R29E; thence east seven miles along Selph Landing Road until its intersection with Highway 395 near the northeast corner of Section 30, T10N, R30E; thence south two miles along Highway 395 to the southeast corner of Section 31, T10N, R30E; thence east three miles along section lines to the northeast corner of Section 3, T9N, R30E; thence south one mile along section lines to the southeast corner of Section 3, T9N, R30E; thence east seven miles along section lines and a portion of the Pasco-Kahlotus Road until its intersection with the Ice Harbor Dam Road at the northeast corner of Section 11, T9N, R31E; thence southerly approximately two miles along section lines until the intersection with the Snake River; thence southwesterly along the Snake River until its intersection with the Bonneville Power Administration power line in Section 25, T9N, R30E; thence northwesterly along the power line until its intersection with Foster Wells Road in Section 4, T9N, R30E; thence west approximately eight and one-half miles along section lines and portions of the Foster Wells Road to the southwest corner of Section 6, T9N, R29E; thence north along section lines approximately three miles to the point of beginning.

(2) Area 6 restrictions.

(a) The use or application of low volatile ester formulations of use restricted herbicides are prohibited on and after April 5th through October 31st of each year: Provided, That hormone sprays may be applied by aircraft to orchards for the prevention of fruit drop.

(b) On and after April 5th through October 31st of each year, all applications of use restricted herbicides are prohibited daily from three hours prior to sunset to sunrise the following morning: Provided, That applications of use restricted herbicides are exempt from the sunset restrictions when using an application rate of forty gallons of water carrier or greater per treated acre and conforming to the manufacturer's specified combination of nozzle type/size and pressure in pounds per square inch (psi) at the nozzle that produces a spray droplet size that falls within the very coarse (or larger) range as defined by the ASABE standards: Provided further, That applications of granular and pellet formulations of the use restricted herbicides are exempt from the sunset restrictions: Provided further, That applications of use restricted herbicides on small experimental plots for research purposes are exempt from the sunset restrictions.

(c) On and after April 5th through October 31st of each year, aerial applications of use restricted herbicides are prohibited daily from three hours prior to sunset until two hours after sunrise the following morning.