- (1) Except as provided in (2) below, visible emissions from abrasive blasting operations shall not exceed 20% opacity except for an aggregate period of three minutes in any one hour.
- (2) If the abrasive blasting operation complies with the performance standards in R307-306-6, visible emissions from the operation shall not exceed 40% opacity, except for an aggregate period of 3 minutes in any one hour.
KEY: air pollution, abrasive blasting, PM10
Date of Last Change: December 15, 2015
Notice of Continuation: October 2, 2024
Authorizing, and Implemented or Interpreted Law: 19-2-101(1)(a)