stormwater

noun

: rainwater produced by a storm
a stormwater management system
As stormwater runs over lawns, streets and other man-made surfaces, it picks up pollutants—phosphorous and nitrogen from fertilizers, bacteria from pet waste and road salt, to name a few—and carries them into local streams and lakes.—Delen Goldberg
This rainfall "of biblical proportions," as the local newspaper described it, swamped the city in waist-high stormwater.—Christopher Cooper and Robert Block

Examples of stormwater in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The study did not include bills for wastewater or stormwater, which are managed by separate utilities. — Mary Cunningham, CBS News, 7 Oct. 2026 Losing power was especially painful for Sunshine Bay because the underground parking garage relies on a hardwired stormwater pump to keep the garage dry when the streets start to flood. — Alex Harris, Miami Herald, 6 Oct. 2026 In Chicago, a wastewater treatment and stormwater management utility urged residents to conserve water use to prevent flooding and stormwater backup. — Fabiola Sanchez, Chicago Tribune, 1 Oct. 2026 That new plan envisions bike paths, public transportation, nearly 200 acres of developable land, and four canals that will act as stormwater infrastructure. — Fort Worth Star-Telegram, 27 Sep. 2026 See All Example Sentences for stormwater

Word History

First Known Use

1848, in the meaning defined above

Time Traveler
The first known use of stormwater was in 1848

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Cite this Entry

“Stormwater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stormwater. Accessed 9 Oct. 2026.

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