The U.S. Geological Survey maintains 14 stations to measure the flow of Chester County streams.
Streams are a crucial component of our environment and economic infrastructure. They are crucial
to water availability for domestic, agricultural, and industrial use. They are the source of
floods, which are among the Nation's most severe natural disasters, both in loss of life and in
economic damage. They provide the habitat, spawning grounds, and avenues of movement for fish.
Streams are a source of great recreational activity in terms of boating, fishing, and simple
enjoyment of visiting and viewing the stream and its environs. Finally, streams are indicators
of the condition of the landscape. They integrate effects from their entire watershed.
Surface-water information collected at these streamflow-measurement stations is used for
surveillance, planning, design, flood warning, operation and management of dams, in water-related
fields such as water supply, flood control, irrigation, bridge and culvert design, wildlife
management, pollution abatement, flood-plain management, and water-resources development.

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| Information Specialist U.S. Geological Survey 215 Limekiln Road New Cumberland, PA 17070-2424 |
Phone: (717) 730-6916 FAX: (717) 730-6997 Email: is_pa@usgs.gov |
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| Director, USGS Pennsylvania Water Science Center U.S. Geological Survey 215 Limekiln Road New Cumberland, PA 17070-2424 |
Phone: (717) 730-6960 FAX: (717) 730-6997 Email: dc_pa@usgs.gov |