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EWG's Tap Water Database — 2021 UPDATE

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Endothall

US Army Fort Huachuca

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

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND90ND
2016ND10ND
2017ND20ND
2018ND100ND
2019N/A00N/A

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
2015-06-253270539ND
2015-06-253270532ND
2015-06-253270525ND
2015-06-253270518ND
2015-11-103357275ND
2015-11-103357269ND
2015-11-103357263ND
2015-11-103357257ND
2015-11-103357251ND
2016-03-173417063ND
2017-03-153655669ND
2017-08-163761096ND
2018-03-1918C1824-05ND
2018-03-1918C1824-04ND
2018-03-1918C1824-03ND
2018-03-1918C1824-02ND
2018-03-1918C1824-01ND
2018-08-1318H1324-01ND
2018-08-1318H1324-05ND
2018-08-1318H1324-04ND
2018-08-1318H1324-03ND
2018-08-1318H1324-02 SOCND