Know Your Environment. Protect Your Health.

Endothall

Gowc North Water System

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
2020ND10ND
2021ND50ND
2022ND70ND
2023ND70ND

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
2020-12-0235596280001ND
2021-02-0135608834004ND
2021-03-0535618673001ND
2021-05-0335630681004ND
2021-05-0335630681005ND
2021-06-1535641338003ND
2022-02-0935696474004EFND
2022-02-0935696474003EFND
2022-04-0435708518004ND
2022-04-0435708518003ND
2022-09-2735750438002ND
2022-10-2435755885002ND
2022-10-2435755885001ND
2023-01-2335774809001ND
2023-01-2735777481001ND
2023-02-2235781903001ND
2023-04-0335790249001ND
2023-04-0335790249002ND
2023-07-1035812564001ND
2023-07-1035812564002ND