In July and August of 2007 and 2008 Pennsylvania Fish and Boat Commission Area 6 along with other agency personnel sampled 10 different moderately-wide to wide (14-36 meters) warmwater streams in southeastern Pennsylvania to document the warmwater fish communities as part of a greater project that would eventually characterize warmwater stream fish communities throughout the state. Sample sites measuring 300-500 meters in length were electrofished at specific locations (segments) on each stream, which are listed in Table 1. Most of the stream segments were characterized as slow moving with few riffles and long pools or long glides. The majority of the pools were up to 1.25 meters deep, but pools were occasionally up to 2.0 meters deep. Streams sampled included those both in the Delaware River drainage and Susquehanna River drainage.