Know Your Environment. Protect Your Health.

Endothall

Gretna Waterworks

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

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

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
2018-01-3035371297005ND
2018-01-3035371297005ND
2018-10-0235421766001ND
2018-10-0235421766001ND
2019-02-0535446730001ND
2019-02-0535446730001ND
2019-08-1435490413001ND
2019-08-1435490413001ND
2020-03-1835538511001ND
2020-10-2635587648001ND
2021-12-0835683666002ND
2021-12-0835683666003ND
2022-01-1335690761001ND
2022-08-0435737249001ND
2023-02-0135777180001ND
2023-10-1135834160001ND