waste·​wa·​ter | \ ˈwāst-ˌwȯ-tər How to pronounce wastewater (audio) , -ˌwä- \

Definition of wastewater

: water that has been used (as in a manufacturing process) : sewage

Examples of wastewater in a Sentence

Recent Examples on the Web Also on Monday, neighboring Las Gallinas Valley Sanitary District in San Rafael was trying to contain 550 gallons of wastewater pouring onto Professional Center Parkway east of Highway 101. Kurtis Alexander, SFChronicle.com, "Toilet-paper shortages caused by coronavirus blamed for spike in raw sewage spills," 19 Mar. 2020 That resulted in an overflow of 650,000 gallons of wastewater. Carissa Lamkahouan, Houston Chronicle, "Upgrade planned for Pearland sewer plant where spills occurred," 17 Mar. 2020 For example, in 2014 the tailings pond at Mount Polley mine in British Columbia breached, sending billions of gallons of toxic wastewater containing lead and arsenic into nearby lakes and streams. Acacia Johnson, National Geographic, "The risky plan to haul minerals from a mine in the Alaska wilderness," 14 Jan. 2020 The water was closed after a blockage of a city sewer main caused about 750 gallons of wastewater to spill Tuesday afternoon near the intersection of Jamboree and San Joaquin Hills roads, according to Health Care Agency spokesman Anthony Martinez. Daily Pilot, "Closure lifted at Newport’s North Star Beach after sewage spill," 27 Sep. 2019 Construction crews at a North Texas Municipal Water District station in Plano broke a sanitary sewer pipe Tuesday, causing 100,000 gallons of wastewater to leak into Cottonwood Creek, the district announced in a news release. Dallas News, "Sewer overflow dumps into Plano's Cottonwood Creek; well owners urged to boil water," 17 July 2019 Another resolution would award $54,000 to Neil Technical Services for the replacement of a blower at the wastewater plant. Roy Kent, Houston Chronicle, "THIS WEEK: Council expected to approve painting mural on water tower," 23 Feb. 2020 Guide also was supposed to turn over its wastewater treatment plant back to GM within three months after that. Sarah Bowman, IndyStar, "113 tons of dead fish: Indiana's worst environmental disaster, 20 years later," 19 Dec. 2019 Six companies were likely responsible for the high levels of drug pollution detected at seven wastewater plants: Mylan, Pfizer (PFE), Teva Pharmaceutical, Watson Pharmaceuticals, Actavis Generics (now owned by Teva), and Mallinckrodt (MNK). Elizabeth Cooney, STAT, "Pharmalittle: Drug factories ‘dump it down the drain’; breast cancer drug picked up by AstraZeneca shrinks tumors," 11 Dec. 2019

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

See More

First Known Use of wastewater

15th century, in the meaning defined above

Keep scrolling for more

Learn More about wastewater

Time Traveler for wastewater

Time Traveler

The first known use of wastewater was in the 15th century

See more words from the same century

Statistics for wastewater

Last Updated

26 Mar 2020

Cite this Entry

“Wastewater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/wastewater. Accessed 7 Apr. 2020.

Keep scrolling for more

More from Merriam-Webster on wastewater

Rhyming Dictionary: Words that rhyme with wastewater

Nglish: Translation of wastewater for Spanish Speakers

Britannica.com: Encyclopedia article about wastewater

Comments on wastewater

What made you want to look up wastewater? Please tell us where you read or heard it (including the quote, if possible).


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

Name that Thing: Flower Edition

Spell It

Can you spell these 10 commonly misspelled words?

Add Diction

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!