out·​fall | \ ˈau̇t-ˌfȯl How to pronounce outfall (audio) \

Definition of outfall

: the outlet of a body of water (such as a river or lake) especially : the mouth of a drain or sewer

Examples of outfall in a Sentence

Recent Examples on the Web

Booms were placed around the outfall from the sewage treatment plant, which officials say is not designed to filter out chemical firefighting foams, and as much of the foam as possible is being collected by contract workers for disposal. Gregory B. Hladky, courant.com, "State working to contain Farmington River pollution from firefighting foam spill," 12 June 2019 Projects like the outfall replacement and the lagoon enhancement require the coordinated efforts of many people at multiple local, state and federal agencies. Phil Diehl, sandiegouniontribune.com, "Sand replenishment begins at Cardiff State Beach," 4 Mar. 2018 The three main outfalls used by West University Place are Kilmarnock Ditch, Poor Farm Ditch and Kirby Drive. Rebecca Hazen, Houston Chronicle, "West University Place conducts drainage study," 7 July 2018 But environmental groups are concerned about both the overall water quality of the Missouri River and the fate of a rare and ancient sturgeon as pollutants flow from outfalls at the park into creek tributaries and eventually the river. Kelsey Ryan, kansascity, "Worlds of Fun was sued for polluting. Then Missouri loosened its pollutant limits," 6 July 2018 Alexandria began to address the issue several years ago, knowing that a state deadline was approaching for fixing three of the four outfalls. Patricia Sullivan, Washington Post, "Virginia regulators approve Alexandria sewer repair plan," 2 July 2018 There will be storm sewer channels that include curb inlets on both sides of the roadway; a ditch system where necessary; three outfalls and two detention basins. Melanie Feuk, Houston Chronicle, "$100 million FM 1960 widening projects includes 3 overpasses in Atascocita," 21 June 2018 For those outfalls not yet captured by the tunnel system, Citizens estimates that roughly 400 million gallons of sewage entered the city's waterways during the week of heavy rainfall. Sarah Bowman, Indianapolis Star, "More than 55 million gallons of sewage kept out of White River by DigIndy tunnel," 27 Feb. 2018 As Mexicali grew as a manufacturing and population center, so did the problems of the river, which has no substantial tributaries, making runoff and sewage outfall its only main sources of water. Brittny Mejia, latimes.com, "Three-eyed fish and two-headed turtles? The stench of this river spanning U.S.-Mexico border is legendary," 2 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'outfall.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of outfall

1629, in the meaning defined above

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Last Updated

20 Jun 2019

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The first known use of outfall was in 1629

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