Know Your Environment. Protect Your Health.

Endothall

Wernersville Muni Water Authority

NOTE: Wernersville Muni Water Authority purchases water from Western Berks Water Authority which is required to test for endothall. Sample information shown below was taken by Western Berks Water Authority.

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

 

4

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
2019ND20ND
2020ND120ND
2021N/A00N/A
2022N/A00N/A
2023ND120ND

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

NOTE: Wernersville Muni Water Authority purchases water from Western Berks Water Authority which is required to test for endothall. Sample information shown below was taken by Western Berks Water Authority.

Date Lab ID Result
2019-05-139030361-01ND
2019-08-129060924-01ND
2020-05-1122261060.00ND
2023-05-0928948194.00ND