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Muncy Creek is a tributary of the West Branch Susquehanna River in Sullivan County, Pennsylvania and Lycoming County, Pennsylvania, in the United States. It is approximately 35.8 miles (57.6 km) long. Major tributaries of the creek include Little Muncy Creek and Wolf Run.
Muncy Creek is approximately 35.8 miles (57.6 km) long.
Muncy Creek begins in southeastern Laporte Township, Sullivan County, near its border with Davidson Township, Sullivan County. The creek flows south and then west for a short distance before reaching the border between Laporte Township and Davidson Township. It then turns southwest as it begins to follow this border. Shortly afterwards it turns northwest and begins to flow into a valley, then turns west and begins receiving very short tributaries from both sides. Examples of these include Rock Run and Lopez Pond Branch. After picking up Peters Creek, one such tributary, Muncy Creek turns southwest and passes the community of Nordmont, where the tributary Elklick Run flows into it. The creek then turns southwest and later west. Deep Hollow Run then enters the creek, which heads south away from the Laporte Township/Davidson Township border. Upon leaving behind the Laporte Township/Davidson Township border, the creek enters Davidson Township and heads west-southwest, passing a gauging station. After several miles, it reaches the community of Sonestown, where the tributary Big Run flows into it from the north. Muncy Creek then makes a sharp bend south and begins flowing parallel to U.S. Route 220. After a few miles, it passes the community of Muncy Valley and makes a sharp turn south, exiting Davidson Township.
Upon exiting Davidson Township, Sullivan County, Muncy Creek enters Lycoming County and flows along the border between Shrewsbury Township and Penn Township for several miles. It continues following U.S. Route 220 during this time, picking up a few tributaries, including Lick Run. The creek also passes by Glen Mawr and Tivoli during this stretch. Beyond the stretch, in Picture Rocks, the creek crosses Pennsylvania Route 864. Beyond the community, the creek continuessouth into Wolf Township, leaving its valley passing by the eastern edge of Hughesville. Some distance further on, the creek recives the tributary Sugar Run and some miles later leaves Wolf Township in a southwesterly direction. Upon exiting Wolf Township, the creek enters Muncy Creek Township, where Little Muncy Creek flows into it. Muncy Creek then turns northeast, crossing Pennsylvania Route 405 and turns southwest, crossing Interstate 180. The creek then receives the tributary Wolf Run and immediately afterwards empties into the West Branch Susquehanna River.
Little Muncy Creek is the major tributary of Muncy Creek. Other streams feeding Muncy Creek include Rock Run, Big Run, Gregs Run, Sugar Run, and Trout Run.
Little Muncy Creek has its source in Davidson Township in Sullivan County, then flows south in Jordan Township in Lycoming County. It then flows west into Franklin Township then Moreland Township and finally Muncy Creek Township, where it flows into Muncy Creek just west of the village of Clarkstown. Other streams feeding Little Muncy Creek include Marsh Run, Beaver Run, Laurel Run, Big Run, German Run, and Little Indian Run.
The highest recorded discharge of Muncy Creek near Muncy is 46,600 cubic feet per second. In 2012 and 2013, the creek's discharge at this location ranged from 29 to 379 cubic feet per second. The osmotic pressure of the stream's waters at this location ranged from less than 1 up to 4 millios-moles per kilogram.
Between November 2012 and September 2013, the lowest recorded water temperatures of Muncy Creek at Muncy were 1.4 °C (34.5 °F) on January 9, 2013 and 2.6 °C (36.7 °F) on March 19, 2013. The highest recorded water temperatures were 20.6 °C (69.1 °F) and 20.4 °C (68.7 °F), on September 4, 2013 and July 9, 2013, respectively.
The concentration of dissolved solids in Muncy Creek ranges from 50 to 80 milligrams per liter. The concentration of suspended solids, however, is always less than 5 milligrams per liter. The water hardness of the creek (in terms of the concentration of calcium carbonate) ranges from 28 to 49 milligrams per liter. The concentration of calcium in the creek ranges from 8.7 to 10.5 milligrams per liter. Its magnesium concentration can be as low as 1.6 milligrams per liter or as high as 2.0 milligrams per liter, while its sodium concentration ranges from 3.2 to 4.1 milligrams per liter.
There are trace amounts of bromides, phosphoruss, orthophosphates, and ammonia in Muncy Creek. All of these occur in concentrations of 0.3 milligrams per liter or less. Nitrites occur in concentrations of less than 0.4 milligrams per liter. The chloride concentration in the creek ranges from 4.5 to 7.0 milligrams per liter. The minimum sulfate concentration is 6.7 milligrams per liter and the maximum is 8.9 milligrams per liter. The minimum nitrate concentration is 0.65 milligrams per liter and the maximum is 1.2 milligrams per liter. The total concentration of nitrogen in the creek ranges from 0.8 to 1.2 milligrams per liter.
The concentration of aluminum in Muncy Creek ranges from less than 20 up to 30 micrograms per liter and the copper concentration is always less than 4 micrograms per liter. The lead concentration is always less than 1 microgram per liter. In 2013, the creek's concentration of manganese was observed to be 20 micrograms per liter. The zinc concentration ranges from less than 5 up to 30 milligrams per liter. The nickel and selenium concentrations are less than 4 and 7 micrograms per liter, respectively, while the boron concentration is less than 200 milligrams per liter. The creek's strontium concentration is 40 or 50 micrograms per liter.
The Muncy Creek watershed encompasses an area of 122 square miles (320 km2) and has a population of 8,994 (as of 2000). Approximately 49.5% of the Muncy Creek watershed is in Lycoming County and 50.5% in Sullivan County. Of that area, 95 square miles (250 km2) are forested, 25 sq mi (65 km2) are given to agricultural uses, only 1 sq mi (2.6 km2) are developed, and the remaining 1 sq mi (2.6 km2) is classified as barren.
The Little Muncy Creek watershed has an area of 82 square miles (210 km2) and a population of 3,735 (as of 2000). Approximately 87.4% of the Little Muncy Creek watershed is in Lycoming County, 5.7% is in Columbia County, 5.3% is in Sullivan County, and 1.5% is in Montour County. Of that area, 48 square miles (120 km2) are forested and 34 sq mi (88 km2) are given to agricultural uses.
- Google Maps, 2014, retrieved June 12, 2014
- United States Geological Survey (1991), laporte.jpg, retrieved June 12, 2014
- United States Geological Survey (1991), davidson.jpg, retrieved June 12, 2014
- United States Geological Survey (1993), lycoming.jpg, retrieved June 12, 2014
- United States Geological Survey (2013), Water-Data Report 2013: 01553005 Muncy Creek Near Muncy, PA, retrieved June 12, 2014