Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Endothall

Hempstead

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

MORE ABOUT THIS CONTAMINANT

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND90ND
2015ND80ND
2016ND50ND
2017ND20ND
2018ND80ND
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
2014-02-071402307-001-SOCSND
2014-03-181403C79-001-SOCSND
2014-03-181403C79-004-SOCSND
2014-03-181403C79-002-SOCSND
2014-03-181403C79-003-SOCSND
2014-03-261403I18-002-SOCSND
2014-03-2603I18-001-SOCSND
2014-05-131405924-001-SOCSND
2014-05-131405924-002-SOCSND
2015-03-171503B84-003-SOCSND
2015-03-171503B84-001-SOCSND
2015-03-171503B84-002-SOCSND
2015-03-241503G73-001-SOCSND
2015-05-271505J25-004-SOCSND
2015-05-271505J25-001-SOCSND
2015-05-271505J25-003-SOCSND
2015-05-271505J25-002-SOCSND
2016-03-231603I98-002-SOCSND
2016-03-231603I98-001-SOCSND
2016-03-231603I98-003-SOCSND
2016-03-291603N30-001-SOCSND
2016-03-291603N30-002-SOCSND
2017-05-237019310002ND
2017-05-237019310001ND
2018-11-077070357001ND
2018-11-077070357002ND
2018-11-147071096002ND
2018-11-147071096001ND
2018-11-217071825001ND
2018-11-217071825002ND
2018-12-117073530001ND
2018-12-117073530002ND