Know Your Environment. Protect Your Health.

Endrin

Town of Ridgecrest Water Supply

NOTE: Town of Ridgecrest Water Supply purchases water from Town of Ferriday Water System which is required to test for endrin. Sample information shown below was taken by Town of Ferriday Water System.

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.

 

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
2019ND80ND
2020ND20ND
2021N/A00N/A
2022ND40ND
2023N/A00N/A

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: Town of Ridgecrest Water Supply purchases water from Town of Ferriday Water System which is required to test for endrin. Sample information shown below was taken by Town of Ferriday Water System.

Date Lab ID Result
2019-08-1535491138001ND
2019-08-1535491138002ND
2019-08-1535491138003ND
2019-08-1535491138004ND
2019-08-1535491138001ND
2019-08-1535491138002ND
2019-08-1535491138003ND
2019-08-1535491138004ND
2022-06-2035726996001ND
2022-06-2035726996002ND
2022-06-2035726996003ND
2022-06-2035726996004ND