Know Your Environment. Protect Your Health.

Chlordane

Cedar Village II

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.253 ppb21ND - 0.506 ppb
20190.338 ppb21ND - 0.675 ppb
20200.241 ppb31ND - 0.722 ppb
2021ND20ND
20220.364 ppb32ND - 0.647 ppb
2023ND10ND

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
2018-05-14CB03013-01RE10.506 ppb
2018-07-16CB07912-01ND
2019-06-18CC09646-01RE10.675 ppb
2019-08-02CC11195-01ND
2020-03-16CD03791-01ND
2020-06-18CD08933-01RE10.722 ppb
2020-08-20CD08934-01ND
2021-06-30CE03348-01ND
2021-07-09CE08316-01ND
2022-01-11CF00220-010.647 ppb
2022-06-12CF08337-01ND
2022-08-08CF11818-010.446 ppb
2023-05-11752-6814-1ND