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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.

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Butte-Silver Bow County, Montana Waiver Request for Spring-Assisted Swing Check Valves (PDF)(5 pp, 422 K)