stormwater

Noun

stormwater (countable and uncountable, plural stormwaters)

1. Water that is not absorbed into soil and rapidly flows downstream, increasing the level of waterways. In some municipal systems it intermixes with wastewater, increasing the volume of the latter.
   • Community groups have collected 12,000 signatures demanding that New York City permanently lower the levels of the Cannonsville, Pepacton and Neversink Reservoirs to 80 percent of capacity so that stormwater runoff can have a place to go rather than charging down the river in flash floods.2007 October 2, Anthony Depalma, “City Agrees to Help Regulate Delaware River by Releasing Water From Reservoirs”, in The New York Times, archived from the original on 05 Jun 2015
   • Coverage under the Minnesota Pollution Control Agency (MPCA) National Pollutant Discharge Elimination System (NPDES) Construction Stormwater General Permit is required for stormwater discharges associated with construction activities disturbing one or more acres.2024 August 19, “LAKETOWN 115-kV TRANSMISSION LINE PROJECT IN CARVER COUNTY, MN”, in Great River Energy, page 26

   Synonyms:

   surface runoff, runoff[Appendix:Glossary