Know Your Environment. Protect Your Health.

Endrin

Wallingford Water Department

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND60ND
2020ND30ND
2021ND10ND
2022ND50ND
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

Date Lab ID Result
2018-06-28CA80406ND
2019-08-05CD73202-P5ND
2019-08-05CD73200ND
2019-08-12CD83465-P5ND
2019-09-16CE10614-P5ND
2019-10-10CE30938-P5ND
2019-11-04CE53371-P5ND
2020-06-08CG08411-P5ND
2020-08-12CG53026ND
2020-09-08CG72643BND
2021-08-04CI88199ND
2022-04-04CK99720-SOC5ND
2022-04-06CL02025-SOC5ND
2022-07-11CL74320ND
2022-08-10CM01617-P5ND
2022-09-06CM23340-P5ND
2023-07-12CO49574ND