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EWG's Tap Water Database — 2021 UPDATE

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Endothall

South Claiborne Water System

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

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND120ND
2015N/A00N/A
2016N/A00N/A
2017ND140ND
2018N/A00N/A
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
2014-06-02AD91998ND
2014-06-02AD91997ND
2014-06-02AD91996ND
2014-06-02AD91995ND
2014-06-02AD91994ND
2014-06-02AD91993ND
2014-06-02AD91993ND
2014-06-02AD91994ND
2014-06-02AD91995ND
2014-06-02AD91996ND
2014-06-02AD91997ND
2014-06-02AD91998ND
2017-05-1535313029001ND
2017-05-1535313029007ND
2017-05-1535313029006ND
2017-05-1535313029005ND
2017-05-1535313029004ND
2017-05-1535313029003ND
2017-05-1535313029002ND
2017-05-1535313029001ND
2017-05-1535313029007ND
2017-05-1535313029006ND
2017-05-1535313029005ND
2017-05-1535313029004ND
2017-05-1535313029003ND
2017-05-1535313029002ND