WAC 16-231-910   What are the boundaries and restrictions for Grant County Area 1?  (1) Area 1 description. (Lands generally within the Columbia Basin irrigation project.) An area starting at the southwest corner of Section 21, T14N, R27E; thence east along the county line four miles more or less to the southeast corner of Section 24, T14N, R27E; thence north along the county line sixteen miles to the southwest corner of Section 31, T17N, R28E; thence east along the county line thirteen miles more or less to the East Low Canal; thence northerly and easterly along the East Low Canal to the Adams County line; thence north along the Grant-Adams County lines six miles more or less to the East Low Canal; thence northwesterly along the East Low Canal to the southeast boundary of Block 70; thence easterly, northerly, and westerly, encompassing Block 70, Soap Lake and Block 701, to the West Main Canal; thence southwesterly along the West Main Canal to the north boundary line of Unit 1, Block 73; thence westerly along the northern boundary line of Block 73 to the northwest corner of Unit 278; then due west to the Willow Springs Draw; thence down Willow Springs Draw to the Columbia River; thence southerly along the Columbia River to the south boundary line of Section 11, T15N, R23E; thence east along the crest of the Saddle Mountains approximately eighteen miles to the northwest boundary of the atomic energy reservation; thence southwesterly along the atomic energy reservation boundary to Highway 24; thence south and west along Highway 24 to Vernita Bridge; thence easterly along the Columbia River to the point of beginning.

     (2) Area 1 restrictions.

     (a) The use or application of low volatile formulations of use restricted herbicides is prohibited on and after April 15 through October 31: Provided, That low volatile ester formulations of 2,4-DB may be applied to alfalfa and red clover seed crops on and after November 1 through April 30 of the following year.

     (b) On and after April 15 through October 31, ground applications of use restricted herbicides shall be made using nozzles having a minimum orifice diameter of 0.052 inches: Provided, That applications of use restricted herbicides on asparagus shall be made using nozzles having minimum nozzle orifice diameter of 0.072 inches.

     (c) On and after November 1 through April 14 of the following year, aircraft applications of use restricted herbicides shall be made using the caution area restrictions (see WAC 16-230-675).

     (d) On and after April 15 through October 31, aircraft applications of use restricted herbicides shall be made using the danger area restrictions (see WAC 16-230-675).

     (e) On and after April 15 through October 31, aircraft applications of use restricted herbicides are prohibited within one mile of any commercial vineyard: Provided, That on and after April 15 through October 31, written requests to apply MCPA to peas and corn located one-half to one mile from commercial vineyards will be considered: Provided further, That on and after April 15 through April 30 written request to apply 2,4-DB on alfalfa and red clover seed crops located one-half to one mile from commercial vineyards will be considered.



[Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. 07-11-041A, § 16-231-910, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 17.21 and 15.58 RCW. 87-18-060 (Order 1950), § 16-231-910, filed 9/1/87; 87-09-015 (Order 1923), § 16-231-910, filed 4/6/87; 80-03-031 (Order 1670), § 16-231-910, filed 2/20/80.]