Know Your Environment. Protect Your Health.

Hexachlorocyclopentadiene

Goodsprings Water Supply Corporation

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0667 ppb32ND - 0.1000 ppb
20190.0500 ppb42ND - 0.1000 ppb
2020ND50ND
20210.0500 ppb42ND - 0.1000 ppb
20220.0250 ppb41ND - 0.1000 ppb
20230.0500 ppb42ND - 0.1000 ppb

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

Date Lab ID Result
2018-05-17Q18201710100.1000 ppb
2018-05-17Q1820171011ND
2018-05-17Q18201710090.1000 ppb
2019-01-03Q1900156003ND
2019-01-03Q19001560090.1000 ppb
2019-01-03Q19001560140.1000 ppb
2019-01-03Q1900156020ND
2020-03-11Q2010297011ND
2020-06-17Q2024667001ND
2020-06-17Q2024667009ND
2020-12-17Q2050081001ND
2020-12-17Q2050081006ND
2021-03-04Q21058070010.1000 ppb
2021-11-12Q21318220010.1000 ppb
2021-11-12Q2131822002ND
2021-11-12Q2131822013ND
2022-03-03Q2207402001ND
2022-05-12Q22142920070.1000 ppb
2022-05-12Q2214292008ND
2022-05-12Q2214292009ND
2023-02-16Q2306539007ND
2023-07-06Q2326236001ND
2023-07-06Q23262360040.1000 ppb
2023-07-06Q23262360050.1000 ppb