Know Your Environment. Protect Your Health.

Heptachlor epoxide

Logansport Water System

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

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2018-01-2335370034001ND
2018-01-2335370034001ND
2018-08-0635409596001ND
2018-08-0635409596001ND
2019-03-1335454724001ND
2019-03-1335454724001ND
2019-07-3135486401001ND
2019-07-3135486401001ND
2020-02-0335528230001ND
2020-09-2235579690001ND
2021-01-1335604986001ND
2021-08-1735657244003ND
2022-02-2235699238002ND
2022-08-2235742155003ND
2023-02-0735778295006ND
2023-08-2135823290001ND