Big Run (East Branch Fishing Creek)
| Big Run | |
|---|---|
Big Run Falls
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| Basin features | |
| Main source | eastern Davidson Township, Sullivan County, Pennsylvania 2,240 to 2,260 feet (680 to 690 m) |
| River mouth | East Branch Fishing Creek in Davidson Township, Sullivan County, Pennsylvania 1,358 ft (414 m) |
| Progression | East Branch Fishing Creek → Fishing Creek → Susquehanna River → Chesapeake Bay |
| Basin size | 1.38 sq mi (3.6 km2) |
| Physical characteristics | |
| Length | 2.4 mi (3.9 km) |
| Discharge |
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Big Run is a tributary of East Branch Fishing Creek in Sullivan County, Pennsylvania, in the United States. It is approximately 2.4 miles (3.9 km) long and flows through Davidson Township. Its watershed has an area of 1.38 square miles (3.6 km2). The stream has a low pH and poor water quality, although that could potentially be remedied. The main rock formations in the area are the Catskill Formation, the Huntley Mountain Formation, and the Burgoon Sandstone. The main soil associations in the vicinity of the stream are the Deep-Wellsboro-Oquaga association, the Oquaga association, and the Norwich association.
Big Run begins in eastern Davidson Township. It flows east for a short distance, nearly reaching the border between Sullivan County and Luzerne County. It then turns north, entering a valley. Once inside the valley, the stream turns west and then southwest, as the valley gets deeper. After less than a mile, the stream turns northwest and leaves the valley. It then merges with Sullivan Branch to form East Branch Fishing Creek.
Big Run has two unnamed tributaries. These are known as Unt 28011 and Unt 28012. Both are considered by the Pennsylvania Department of Environmental Protection to be impaired by atmospheric deposition.
The average discharge of Big Run is 1404 gallons per minute. The average concentration of aluminum in the stream is 0.167 milligrams per liter.
The pH of Big Run during average flow conditions is 5.61. Its pH ranges from less than 3 to nearly 7. The stream experiences episodic acidification.
Big Run is considered to have "good" water quality during average flow conditions, but "severe" water quality during high flow conditions. The stream does not require any additional alkalinity to be restored to the satisfaction of the East Branch Fishing Creek Restoration Plan. Proposed methods of restoring the water quality of Big Run include in-stream limestone sand dosing and road liming.
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