While most recreationally caught sport fish in PA are safe to eat, chemicals such as mercury and PCBs have been found in some fish in PA.

For many years, hydroelectric dams have prevented American Eels from migrating up the Susquehanna River.

​The sea lamprey has plagued the Great Lakes since the early 1800s. Electrical barriers could help stop them.

Acid mine drainage (AMD) is the number one water pollution problem in Pennsylvania.

​When temperatures drop, so can the strength of water mains.

Climate change is a major challenge facing Pennsylvania, and DEP is leading many efforts to fight back and protect communities.

European Frog-bit is a free-floating aquatic plant that resembles a miniature water lily.

Illegal dumping creates ideal breeding grounds for mosquitoes.

Keeping Pennsylvania waters healthy and clean starts local and, on one farm in Susquehanna County, with the help of 120-head of cattle.

From the time that a single raindrop hits the ground, it begins its travel to a larger body of water.