Know Your Environment. Protect Your Health.

Heptachlor epoxide

Fort Detrick

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND40ND
2020ND20ND
2021ND10ND
2022ND10ND
2023ND30ND

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
2018-04-202310426001ND
2018-05-09E18004053001ND
2018-08-102332019001ND
2019-04-013026562_005_006ND
2019-04-053026635001_AND
2019-04-16E19003479001ND
2019-07-263047972001_AND
2020-06-15E20003852001ND
2020-08-113120608001ND
2021-07-13E22000138001ND
2022-06-30E2300001201ND
2023-02-073286800001ND
2023-05-093302186001ND
2023-12-053335803ND