Know Your Environment. Protect Your Health.

Hexachlorocyclopentadiene

Kirkmont Municipal Utility District

NOTE: Kirkmont Municipal Utility District purchases water from Sagemeadow Utility District which is required to test for hexachlorocyclopentadiene. Sample information shown below was taken by Sagemeadow Utility District.

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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: Kirkmont Municipal Utility District purchases water from Sagemeadow Utility District which is required to test for hexachlorocyclopentadiene. Sample information shown below was taken by Sagemeadow Utility District.

Date Lab ID Result
2018-04-12AE22365ND
2018-04-12AE22366ND
2019-02-19AE54913ND
2019-02-19AE54914ND
2020-02-19AE99100ND
2020-02-19AE99101ND
2021-03-04AF45505ND
2021-05-26AF55638ND
2022-03-24AF90596ND
2022-03-24AF90598ND
2023-02-22AG30058ND