THE SPRING CREEK WATERSHED ATLAS

Pennsylvania is facing increasing problems with incursions of aquatic invasive species (AIS). One of the most recent invaders is New Zealand Mudsnail (Potamopyrgus antipodarum) (NZM), which was discovered in Spring Creek in 2013. This was the first known occurrence of the species on the U.S. Atlantic slope. NZM have the potential to create a negative competitive impact on benthic communities of infested waterways, thus disrupting the base of the food web upon which higher org

Stormwater is excess rain or snowmelt that floods the land surface. On an open undisturbed landscape most rainwater soaks into the ground and the overflow eventually discharges into the nearest watercourse. However, in an urban environment, most land is impervious, i.e., covered with roads, buildings and parking lots, thus the volume of rainwater that can’t soak into the ground is overwhelming, creating extensive flooding, erosion, stream pollution, and physical damage to th