A blueprint of priority policies to ensure clean air, clean water, and protecting natural places in Allegheny County. This page houses the air quality enforcement actions issued in Allegheny County starting on January 1, 2020.The bureau assists in protecting outdoor resources such as water and land; plants and animals; the environmental health and safety of patrons and employees. International environmental agreements (IEAs) are signed treaties that regulate or manage human impact on the environment in an effort to protect it. Gov(opens in a new tab). Submit applications for Chapter 102 and 105 permits in Allegheny County. The Pittsburgh District provides expertise to help the region and the nation meet water resources development, environmental and other engineering needs.