Know Your Environment. Protect Your Health.

Endrin

City of Obrien

NOTE: City of Obrien purchases water from North Central Texas Municipal Water Authority which is required to test for endrin. Sample information shown below was taken by North Central Texas Municipal Water Authority.

Endrin is a banned organochlorine insecticide that is persistent and bioaccumulative. Endrin damages the nervous, immune and reproductive systems in people. It also harms fish, birds and other wildlife.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND10ND
2020ND10ND
2021ND50ND
2022ND20ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.3 ppb

The EWG Health Guideline of 0.3 ppb for endrin 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 change to the heart and blood vessels.

EPA Maximum Contaminant
Level (MCL): 2 ppb

The legal limit for endrin, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1960s.

ppb = parts per billion

All test results

NOTE: City of Obrien purchases water from North Central Texas Municipal Water Authority which is required to test for endrin. Sample information shown below was taken by North Central Texas Municipal Water Authority.

Date Lab ID Result
2018-02-13Q1806366001ND
2018-02-13Q1806366002ND
2018-05-15Q1819778002ND
2019-03-07Q1909867007ND
2020-03-17Q2011709001ND
2020-03-17Q2011709002ND
2021-03-01Q2105128001ND
2021-05-18Q2112967001ND
2021-08-24Q2122978001ND
2021-08-24Q2122978004ND
2021-12-09Q2134685001ND
2022-03-02Q2207242001ND
2022-09-07Q2226614010ND
2023-03-08Q2309188007ND
2023-09-05Q2338005001ND