Extraction and processing shall be conducted to comply with state air quality standards and any permit requirements as set forth by the Puget Sound Clean Air Agency. The approval authority may, as a condition of approval, require the use of best management practices (such as watering of the site and equipment) to control emissions of suspended particulates. (Added by Amended Ord. 05-083, Dec. 21, 2005, Eff date Feb. 1, 2006; Amended by Amended Ord. 21-060, Oct. 6, 2021, Eff date Oct. 22, 2021. Formerly 30.31D.145).