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EWG's Tap Water Database — 2021 UPDATE

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Endothall

Lutcher Waterworks

Endothall is a herbicide used to kill aquatic plants and algae. It's also used on potato and cotton crops.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND40ND
2016ND20ND
2017ND40ND
2018ND40ND
2019ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 94 ppb

The EWG Health Guideline of 94 ppb for endothall was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to the stomach and intestines.

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for endothall, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1960s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-17AD89144ND
2014-02-17AD89144ND
2015-06-0835192498005ND
2015-06-0835192498005ND
2015-09-2935209762003ND
2015-09-2935209762003ND
2016-09-2035266509002ND
2016-09-2035266509002ND
2017-01-1835289822004ND
2017-01-1835289822004ND
2017-10-2435344091004ND
2017-10-2435344091004ND
2018-02-0135371637001ND
2018-02-0135371637001ND
2018-08-2335413208001ND
2018-08-2335413208001ND
2019-02-1235447884001ND
2019-02-1235447884001ND
2019-08-2135492540001ND
2019-08-2135492540001ND