Glossary beginning with R
terms for which definitions are available
- RCP
River Conservation Plan; part of the PA Department of Conservation and Natural Resources’s Rivers Conservation Planning Program
- receiving waters
All distinct bodies of water that receive runoff or wastewater discharges, such as streams, rivers, ponds, lakes, and estuaries.
- recharge
the replenishment of groundwater through the infiltration of rainfall, other surface waters, or land application of water or treated wastewater
- redevelopment
any development that requires demolition or removal of existing structures or impervious surfaces at a site and replacement with new impervious surfaces
- regulator
in sewer infrastructure, a physical gate, valve, or other control structure that routes flow between two or more receiving pipes, usually one of which terminates in a combined sewer outfall
- riffle
a reach of stream that is characterized by shallow, fast moving water broken by the presence of rocks and boulders
- riparian
a vegetated area related to, within, or near a river or its that protects it from pollution and erosion
- riparian corridor
the area of land along the bank or shoreline of a body of water (US Environmental Protection Agency's website)
- roof drain
a drainage conduit or pipe that collects water runoff from a roof and leads it away from the structure
- RTC
Real Time Control; a dynamic system of hydraulic controls to provide additional storage and reduce overflows from a combined sewer system
- run
a reach of stream that is characterized by smooth flowing water
- runoff
generally, precipitation that is not absorbed by surfaces or evaporated, but allowed to flow over the surface to a receiving body of water