PHILADELPHIA — One-third of all Pennsylvania waterways are now considered polluted enough to harm wildlife, recreation or drinking water, according to a report released this week by the state's Department of Environmental Protection.
The DEP listed 27,886 miles of streams it found impaired in one or more ways, which is about 9% worse than its 2020 estimate.
That's 2,398 more miles of streams that Pennsylvania has designated as impaired over the last two years.
