Know Your Environment. Protect Your Health.

Endrin

Guilford 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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND10ND
2020ND60ND
2021N/A00N/A
2022N/A00N/A
2023ND100ND

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

Date Lab ID Result
2018-05-298055384-01ND
2018-09-048091925-01ND
2018-12-118122846-01ND
2019-03-059032320-01ND
2020-06-0922559574.00ND
2020-06-0922559544.00ND
2020-06-0922559514.00ND
2020-09-0923136517.00ND
2020-09-0923136561.00ND
2020-09-0923136591.00ND
2023-05-2429053431.00ND
2023-05-2429053398.00ND
2023-06-0729253967.00ND
2023-06-0729253956.00ND
2023-06-0729253945.00ND
2023-07-1829651244.00ND
2023-08-0129651278.00ND
2023-08-0129651225.00ND
2023-08-2229840448.00ND
2023-08-2229840464.00ND