Know Your Environment. Protect Your Health.

Chlordane

North Central Texas Municipal Water Authority

The cancer-causing pesticide chlordane was banned in 1988. Chlordane is persistent and accumulates in the body. It is still found in the environment and in the bodies of adults and newborn babies.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND10ND
2020ND20ND
2021ND50ND
2022ND20ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.03 ppb

The EWG Health Guideline of 0.03 ppb for chlordane 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): 2 ppb

The legal limit for chlordane, 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 due to chlordane exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-13Q1806366001ND
2018-02-13Q1806366002ND
2018-05-15Q1819778002ND
2019-03-07Q1909867007ND
2020-03-17Q2011709001ND
2020-03-17Q2011709002ND
2021-03-01Q2105128001ND
2021-05-18Q2112967001ND
2021-08-24Q2122978001ND
2021-08-24Q2122978004ND
2021-12-09Q2134685001ND
2022-03-02Q2207242001ND
2022-09-07Q2226614010ND
2023-03-08Q2309188007ND
2023-09-05Q2338005001ND