The agency's preliminary analysis shows green infrastructure is more expensive to use to prevent sewage entering rivers than pipes and other gray infrastructure in most locations.
PFAS can make its way into water supplies. If the Allegheny County Airport Authority doesn’t investigate, some lawyers say it could find itself in legal jeopardy.
The city is in compliance with federal guidelines, but lead levels detected in Pittsburgh’s drinking water in 2013 were just shy of a federal limit that prompts major corrective action.
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