Know Your Environment. Protect Your Health.

Heptachlor epoxide

Morrisville State College

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
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
2022ND30ND
2023ND10ND

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
2018-06-0706071810CND
2018-06-0706071808CND
2018-06-0706071809CND
2019-05-3005301908CND
2019-05-3005301909CND
2019-05-3005301907CND
2020-05-2105212003C SOCND
2020-05-2105212001C SOCND
2020-05-2105212002C SOCND
2021-06-0906092107CND
2021-06-0906092106CND
2021-06-0906092108CND
2022-06-0906092205CND
2022-06-0906092206CND
2022-06-0906092204CND
2023-06-21EHS2300034560SOCND