Know Your Environment. Protect Your Health.

Chlordane

Town of Ponder

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2018-03-07Q1809461007ND
2018-03-07Q1809461008ND
2018-03-13Q1810192003ND
2019-04-04Q1913697005ND
2019-04-04Q1913697012ND
2019-04-04Q1913697016ND
2020-10-08Q2039550001ND
2020-10-08Q2039550016ND
2021-06-28Q2116757001ND
2021-06-28Q2116757005ND
2021-06-28Q2116757002ND
2022-06-30Q2218550005ND
2022-06-30Q2218550010ND
2022-06-30Q2218550011ND
2023-09-14Q2339666012ND
2023-09-14Q2339666013ND
2023-11-30Q2351086001ND