Know Your Environment. Protect Your Health.

Endothall

Ward II Water District

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

 

41

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND160ND
2019ND20ND
2020ND20ND
2021ND150ND
2022ND10ND
2023ND50ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-05-0235390161002ND
2018-05-0235390161001ND
2018-05-0235390161002ND
2018-05-0235390161001ND
2018-06-2535400823001ND
2018-06-2535400823002ND
2018-06-2535400823003ND
2018-06-2535400823004ND
2018-06-2535400823005ND
2018-06-2535400823005ND
2018-06-2535400823001ND
2018-06-2535400823002ND
2018-06-2535400823003ND
2018-06-2535400823004ND
2018-09-1035417396001ND
2018-09-1035417396001ND
2019-07-2435485209001ND
2019-07-2435485209001ND
2020-06-2335558765001ND
2020-06-2335558765002ND
2021-03-2935622757003ND
2021-03-2935622757002ND
2021-03-2935622757001ND
2021-06-1435641231001ND
2021-06-1435641231002ND
2021-06-1435641231003ND
2021-06-1435641231004ND
2021-06-1435641231005ND
2021-06-2835644430003ND
2021-06-2835644434001ND
2021-06-2835644434002ND
2021-06-2835644434003ND
2021-06-2835644430002ND
2021-06-2835644430001ND
2021-08-0935655086001ND
2022-08-2235742597001ND
2023-05-0835799020001ND
2023-05-0835799020002ND
2023-05-0835799020003ND
2023-05-0835799020004ND
2023-05-0835799020005ND