- (1) R307-312 applies to all crushers, screens, conveyors, hot mix asphalt plants, and concrete batch plants located within a PM2.5 nonattainment and maintenance area as defined in 40 CFR 81.345 (July 1, 2011) and geographically described as all regions of Salt Lake and Davis counties; all portions of the Cache Valley; all regions in Weber and Utah counties west of the Wasatch mountain range; in Box Elder County, from the Wasatch mountain range west to the Promontory mountain range and south of Portage; and in Tooele County, from the northernmost part of the Oquirrh mountain range to the northern most part of the Stansbury mountain range and north of Route 199.
- (2) The provisions of R307-312 do not apply to temporary hot mix asphalt plants.
KEY: air pollution, aggregate, asphalt, concrete
Date of Last Change: February 4, 2016
Notice of Continuation: December 7, 2022
Authorizing, and Implemented or Interpreted Law: 19-2-101; 19-2-104; 19-2-109