
Have you noticed a ping pong ball or rubber duck floating along a stream in one of Allegheny County's parks recently? No need to worry. The items likely are not trash, but part of a three-year stream assessment by Penn State Extension Master Watershed Steward volunteers. These objects can help calculate the streamflow and provide useful data about the health of a stream.Three Master Watershed Stewards from Allegheny County — Laurie Maglietta,...