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EWG's Tap Water Database — 2021 UPDATE

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Endothall

Campti Water System

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

 

14

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
2015N/A00N/A
2016ND60ND
2017N/A00N/A
2018N/A00N/A
2019ND80ND

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
2016-10-1735271370005ND
2016-10-1735271370006ND
2016-10-1735271370007ND
2016-10-1735271370005ND
2016-10-1735271370006ND
2016-10-1735271370007ND
2019-02-0435446763001ND
2019-02-0435446763001ND
2019-09-0935496811001ND
2019-09-0935496811002ND
2019-09-0935496811001ND
2019-09-0935496811002ND
2019-12-0535516907001ND
2019-12-0535516907001ND