Back River (Maryland)
|- left||Moore's Run, Northeast Creek, Deep Creek|
|- right||Herring Run, Bread and Cheese Creek|
|- elevation||0 ft (0 m)|
|Length||9 mi (14 km)|
|Depth||25 ft (8 m)|
|Basin||61 sq mi (158 km2)|
Back River is a tidal estuary in Baltimore County, Maryland, located about 2 miles (3 km) east of the city of Baltimore. The estuary extends from the community of Rosedale, southeast for about 8.8 miles (14.2 km) to the Chesapeake Bay. The watershed area is 39,075 acres (15,813 ha) and includes Essex Skypark Airport.
 Water quality
Back River is in a highly urbanized area and is subject to extensive urban runoff and other forms of water pollution. The Maryland Department of the Environment has listed water quality impairments in the mainstem river for chlordane (a pesticide), and nutrients (nitrogen and phosphorus). The Herring Run tributary is listed as impaired due to high levels of bacteria. The Baltimore County Department of Environmental Protection and Resource Management (DEPRM) has classified Bread and Cheese Creek as having a “Very High Priority” for stormwater management actions, due to the large amount of trash and sediment found in it. The county recommends implementing a number of remedial activities to control urban runoff pollution, including "downspout disconnection, storm drain marking, buffer improvement, alley retrofit, street sweeping, tree planting and public education." :81-90
The Back River watershed consists of 73 miles (117 km) of streams in Baltimore County and Baltimore City.
- Armistead Run
- Biddison Run
- Bread and Cheese Creek
- Brien’s Run
- Chinquapin Run
- Deep Creek
- Duck Creek
- Herring Run
- Moore’s Run
- Northeast Creek
- Redhouse Run
- Stemmers Run
- Tiffany Run
 See also
- U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed April 1, 2011
- Maryland Department of the Environment (MDE). Baltimore, MD (2005). "Total Maximum Daily Loads of Nitrogen and Phosphorus for Back River in Baltimore City and Baltimore County, Maryland."
- MDE (1999). "Total Maximum Daily Load (TMDL) Documentation for Chlordane in Back River."
- MDE (2007). "Total Maximum Daily Loads of Fecal Bacteria for the Herring Run Basin in Baltimore City and Baltimore County, Maryland."
- Baltimore County Department of Environmental Protection and Resource Management (DEPRM), Towson, MD (2010). "Tidal Back River Small Watershed Action Plan." February 2010.
- DEPRM. "Back River Watershed." 2010-06-03.
- Back River Restoration Committee
- Clean Bread and Cheese Creek
- Blue Water Baltimore, formed in 2010 from a merger of the Gwynns Falls, Jones Falls, Herring Run, and Baltimore Harbor Watershed Associations, and the Baltimore Harbor Waterkeeper
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