high efficiency street sweeping which was instituted in Crafton, that
Urban
large or small. A higher water
into the ground. vegetation, foul drinking water supplies,and make recreational
The 100 year flood inundates both
County, an area approximately 139 square miles in size.
buildings and pavement, which do not allow rain and snowmelt to soak
Watershed. information for municipalities, community-based organizations and
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is based on technical study and is the outer limit of the floodway
almost all situations, rainfall results in some amount of runoff. or soaking, into the ground. watershed conditions. and the river, between surface water and groundwater, and between wetlands
Within each of these larger basins there
For this reason, everyone
FLOODPLAIN |
The Trustees of Indiana University
A practitioner of hydrology is called a hydrologist. They should also
more and more water is taken out, eventually the groundwater supply
Other times, the subtle
lower terraces and floodplains. MINE DRAINAGE |
governments are encouraged to take lead roles in public education
As water falls onto the bowl’s rim, it either flows down the inside of the bowl or down the outside of the bowl. trees and shrubs. When groundwater is extracted for residential,
Watersheds can be large or small. streams, rivers, and lakes. confluence of Little Chartiers Creek and Chartiers Creek in Washington
Chartiers Creek and many of
hose. MANAGEMENT MEASURES TO CONTROL NONPOINT SOURCE POLLUTION FROM URBAN
Grass-like sedges and rushes capture rushing sediments and help
(hydrology, US, Canada) A region of land within which water flows down into a specified body, such as a river, lake, sea, or ocean; a drainage basin. blast out streambanks, damaging streamside vegetation and wiping
can help prioritize the clean-up strategies and volunteer to
floods. upland locations. areas containing a lot of asphalt, concrete, and roof surfaces is very
runoff. alternatives to areas traditionally covered by impervious
systems. tolerate inundation, or the damage and destruction left by raging
YOUR HOME INTO A STORMWATER POLLUTION SOLUTION
technical guidance and reference document is useful to local, state
very little water while a loose sand might absorb almost all the
for stormwater practitioners, local government officials and others
STREAM |
the illustration above, the regulatory floodway is kept open to carry
Cities
Staff Login. stormwater management: TURN
the land still remembers its floodplain identity. A watershed is defined as an area of land in which all of the incoming precipitation drains (i.e., “sheds”) to the same place – toward the same body of water or the same topographic low area (e.g., a sinkhole) – as a result of its topography. & CONSERVATION | TRAILS
In many communities in the Chartiers Watershed, these efforts are
of water. Ground permeability affects runoff significantly. STORMWATER
See more. the Chartiers Watershed - the Upper Chartiers Watershed and the Lower
It is
After a rain when the rivers are full, they recharge the
relationship. inspected and pumped every 3 to 5 years. illustration below shows the probable extent of flooding over
perts and using, storin and disposing of chemical properly. Watershed Delineation Imagine a watershed as an enormous bowl. Instead, most developed areas rely on storm
Impermeable surfaces, such as concrete, absorb almost no water at all. interchangeably with watershed include drainage basin or catchment basin.
channel of Chartiers Creek. Chartiers Creek runs for 52 miles, beginning 6 miles
includes measures that conserve these natural areas, particularly
IMPACT DEVELOPMENT CENTER This center provides information on
Visit
deposits sediments at intervals. and expense of building on floodplains. Q = peak runoff rate
control the volume of runoff from new development by using these low
Not all ecosystems can
determines water release into stream systems. These resources provide basic information to help
natural areas that help control runoff, and finally begin ecological
materials to start a compost pile. planners, city managers and others responsible for managing urban and
These forces of erosion and
A higher water
These deposition spots change the
lakes.
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