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EWG's Tap Water Database — 2019 UPDATE

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Endothall

Forrest City Waterworks

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

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND40ND
2014ND20ND
2015N/A00N/A
2016ND40ND
2017ND20ND

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
2013-08-2713241000304ND
2013-08-2713241000204ND
2013-11-0513310000904ND
2013-11-0513310000804ND
2014-04-2314114013804ND
2014-08-2714240000604ND
2016-07-0616189013604ND
2016-07-0616189013504ND
2016-10-0316279003104ND
2016-10-0316279003204ND
2017-04-0317096000204ND
2017-07-3117215001703ND