Know Your Environment. Protect Your Health.

Heptachlor epoxide

City of Bogalusa Water System

Heptachlor epoxide is a breakdown product of heptachlor, a highly toxic and carcinogenic pesticide banned in the U.S. since the 1980s.

 

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
2019N/A00N/A
2020ND50ND
2021N/A00N/A
2022ND20ND
2023ND50ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.006 ppb

The EWG Health Guideline of 0.006 ppb for heptachlor epoxide 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 cancer.

EPA Maximum Contaminant
Level (MCL): 0.2 ppb

The legal limit for heptachlor epoxide, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2020-07-2135565361001ND
2020-07-2135565361002ND
2020-07-2135565361003ND
2020-07-2135565361004ND
2020-07-2135565361005ND
2022-09-1235747173001ND
2022-09-1435747176001ND
2023-08-0735819735001ND
2023-08-0735819735002ND
2023-08-0735819735003ND
2023-12-1135847875001ND
2023-12-1135847875002ND