Know Your Environment. Protect Your Health.

Heptachlor epoxide

Tabor City, Town of

NOTE: Tabor City, Town of purchases water from Grand Strand Water and Sewer Authority which is required to test for heptachlor epoxide. Sample information shown below was taken by Grand Strand Water and Sewer Authority.

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

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

NOTE: Tabor City, Town of purchases water from Grand Strand Water and Sewer Authority which is required to test for heptachlor epoxide. Sample information shown below was taken by Grand Strand Water and Sewer Authority.

Date Lab ID Result
2018-04-11AE10715ND
2018-04-11AE10686ND
2018-04-11AE10668ND
2019-05-22AE30798ND
2019-05-22AE30800ND
2019-05-23AE30841ND
2020-06-24AE50427ND
2020-06-24AE50426ND
2021-06-16AE67499ND
2022-05-25AE84252ND
2022-05-25AE84317ND
2022-10-12AE91368ND
2022-10-12AE91367ND