Know Your Environment. Protect Your Health.

Endothall

Oil City Water Works

NOTE: Oil City Water Works purchases water from Blanchard Water System which is required to test for endothall. Sample information shown below was taken by Blanchard Water System.

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

 

12

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
2019ND40ND
2020ND20ND
2021ND20ND
2022ND10ND
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

NOTE: Oil City Water Works purchases water from Blanchard Water System which is required to test for endothall. Sample information shown below was taken by Blanchard Water System.

Date Lab ID Result
2019-02-1835449623001ND
2019-02-1835449623001ND
2019-07-2535485233001ND
2019-07-2535485233001ND
2020-03-1635538195001ND
2020-08-1035569898001ND
2021-01-0535602529001ND
2021-08-1035655130002ND
2022-02-1435697796002EFND
2022-07-2735735463003ND
2023-01-3035776976004ND
2023-08-1535821486001ND