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Fort Erie Creeks Watershed Plan - Niagara Peninsula Conservation ...

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Culvert<br />

Any closed channel or large size pipe use to convey water below ground over a short distance<br />

usually across roadways or railways.<br />

Detention Pond<br />

System to detain stormwater for a specific time and ultimately discharges completely to a<br />

downstream receiver. The purpose of this facility may be to attenuate high peak flows and slowly<br />

release them to downstream waterways.<br />

Discharge Zone<br />

Areas where groundwater meets the surface (Typically in stream) and adds flow in the form of<br />

base flow to the stream from groundwater.<br />

Dissolved oxygen (DO)<br />

Oxygen that is present in water and available for aquatic organism respiration.<br />

Downstream<br />

Is the direction of the flow of a stream or river; (i.e. down river).<br />

Drainage<br />

Removal of excess surface or subsurface ground water from land segments. Removal could be<br />

by naturally or open ditch, stream or subsurface system. Soil characteristics will determine<br />

natural drainage of any land.<br />

Drainage Basin<br />

Drainage basin or catchment area is an area that drains by a stream, creek or any other water<br />

body. The boundary or limits of a drainage basin separate it from neighbouring drainage systems<br />

by heights of land between them. The amount of precipitation, size and physical characteristics<br />

of drainage basin, determine peak flows and amount of water which can reach the end of a<br />

drainage basin.<br />

Dredging<br />

Removal of sediment from the bottom of a waterbody.<br />

Dry Pond<br />

A detention basin (see “Detention Pond”) which does not hold water during non-storm periods<br />

(i.e. it is dry with no permanent pool).<br />

Ecological Services<br />

Benefits that humans derive from ecological functions such as photosynthesis, oxygen<br />

production and water purification.<br />

Ecosystem<br />

A biological community and its interaction with its environment.<br />

E. coli<br />

Abbreviation for Escherichia coli, a disease caused by fecal coliform bacteria.<br />

March 2008 207 <strong>Fort</strong> <strong>Erie</strong> <strong>Creeks</strong> <strong>Watershed</strong> <strong>Plan</strong><br />

General Report (105116)

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