stormwater management CORRECT 100%

stormwater management CORRECT
100%
stormwater - ANSWERwater that starts as precipitation, flows overland or through storm sewers to
surface waterways



combined sewer - ANSWER60% of philly



impervious surface - ANSWERstormwater caused by



stormwater is important - ANSWERbiodiversity changes, altered hydrology, stream erosion, flooding,
pollution



retain, slow down, return, pay - ANSWERwhat can be done about storm water




separate sewer - ANSWER40% of philly



retention ponds and stormwater wetlands - ANSWERretain



slow down - ANSWERswale



surface runoff and inputs of stormwater sewers - ANSWERincrease infiltration by decreasing



rain gardens - ANSWERCollect surface runoff in a planted low lying depression

Native plants

Cuts down on the stormwater entering a stream




urban green alleys - ANSWERControl flooding and stormwater inputs

May be funneled into retention ponds