Know Your Environment. Protect Your Health.

Endothall

Altoona Water Authority

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

 

22

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
2020ND120ND
2021N/A00N/A
2022N/A00N/A
2023ND100ND

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
2020-05-1822286929.00ND
2020-05-1822286902.00ND
2020-05-1822286956.00ND
2020-05-2122483931.00ND
2020-05-2122483985.00ND
2020-05-2122483957.00ND
2020-07-1522676312.00ND
2020-07-1522676339.00ND
2020-07-1522676145.00ND
2020-07-1622869586.00ND
2020-07-1622676393.00ND
2020-07-1622676366.00ND
2023-04-2728974671.00ND
2023-04-2728974651.00ND
2023-05-0328974811.00ND
2023-05-0328974778.00ND
2023-05-0428974716.00ND
2023-08-0229571007.00ND
2023-08-0229571028.00ND
2023-08-0329571067.00ND
2023-08-0329571088.00ND
2023-08-2229571217.00ND