Know Your Environment. Protect Your Health.

Endothall

North Penn Water Authority

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

 

30

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
2020ND220ND
2021N/A00N/A
2022N/A00N/A
2023ND80ND

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
2020-04-0122023052.00ND
2020-04-0122023022.00ND
2020-04-0122022992.00ND
2020-04-0122022962.00ND
2020-04-0122023130.00ND
2020-04-1322023344.00ND
2020-04-1322023314.00ND
2020-04-1322023284.00ND
2020-04-1322023254.00ND
2020-04-2122023912.00ND
2020-05-0422215386.00ND
2020-07-0622607328.00ND
2020-07-0622607358.00ND
2020-07-0622607298.00ND
2020-07-0622607388.00ND
2020-07-0622608057.00ND
2020-08-1022799608.00ND
2020-08-1022799578.00ND
2020-08-1022799488.00ND
2020-08-1222799548.00ND
2020-08-1222799518.00ND
2020-08-3122999387.00ND
2023-04-1228702840.00ND
2023-04-1228702837.00ND
2023-04-1228702839.00ND
2023-04-1228702838.00ND
2023-07-1929498009.00ND
2023-07-1929498007.00ND
2023-07-1929498008.00ND
2023-07-1929498006.00ND