Butte-Silver Bow County, Montana Waiver Request for Spring-Assisted Swing Check Valves

EPA did not approve this waiver request. 

EPA identified one manufacturer that indicated they could produce the specific valve in question in a reasonable timeframe. EPA provided this information to the assistance recipient and received confirmation that the product would be suitable for the project.

• Butte-Silver Bow County, Montana Waiver Request for Spring-Assisted Swing Check Valves (pdf) (411.71 KB)