Know Your Environment. Protect Your Health.

Endothall

Upper Hanover Water Authority

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

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND70ND
2021N/A00N/A
2022N/A00N/A
2023ND130ND

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
2020-03-2021847980.00ND
2020-03-2021847979.00ND
2020-03-2021847981.00ND
2020-06-1822417357.00ND
2020-06-1822417356.00ND
2020-06-1822417358.00ND
2020-06-1822417355.00ND
2023-02-2828350210.00ND
2023-02-2828350211.00ND
2023-02-2828350212.00ND
2023-05-2428901022.00ND
2023-05-2428901021.00ND
2023-05-2428901023.00ND
2023-08-2129498222.00ND
2023-08-2129498221.00ND
2023-08-2229498220.00ND
2023-11-1330072090.00ND
2023-11-1330072088.00ND
2023-11-1430072089.00ND
2023-11-2830072224.00ND