Know Your Environment. Protect Your Health.

Hexachlorocyclopentadiene

Nashville, Town of

NOTE: Nashville, Town of purchases water from City of Rocky Mount which is required to test for hexachlorocyclopentadiene. Sample information shown below was taken by City of Rocky Mount.

Hexachlorocyclopentadiene was historically used for the manufacture of currently banned pesticides, such as endrin, dieldrin and chlordane. It’s still used for production of flame retardants, resins and plastics.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND60ND
2021ND30ND
2022ND40ND
2023ND40ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 2 ppb

The EWG Health Guideline of 2 ppb for hexachlorocyclopentadiene 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 harm to the stomach and intestines.

EPA Maximum Contaminant
Level (MCL): 50 ppb

The legal limit for hexachlorocyclopentadiene, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

NOTE: Nashville, Town of purchases water from City of Rocky Mount which is required to test for hexachlorocyclopentadiene. Sample information shown below was taken by City of Rocky Mount.

Date Lab ID Result
2019-06-1137729_19-24433ND
2019-06-2737729_19-27227AND
2019-06-2737729_19-27227ND
2019-08-1237729_19-34935ND
2019-08-1237729_19-34939ND
2020-04-2737729_20-17651ND
2020-06-198146-061920-E02SND
2020-07-078146B-070720-E01SND
2020-07-148146-071420-E02SND
2021-04-068146-040621-E01SND
2021-09-078146-090721-E01SND
2021-10-288146-102821-E01SND
2022-02-108146-021022-E01SND
2022-06-028146-060222-E01SND
2022-08-038146-080322-E01SND
2022-12-078146-120722-E01SND
2023-01-178146-011723-E01SND
2023-04-108146A-041023-E02SND
2023-06-1437729_23-31851ND
2023-08-078146-080723-E02SND
2023-09-078146-090723-E01SND
2023-10-048146-100423-E01SND
2023-10-048146-100423-E02SND