Know Your Environment. Protect Your Health.

Chlordane

Henlopen Acres, Town of

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.300 ppb110.300 ppb
20190.300 ppb110.300 ppb
20200.400 ppb110.400 ppb
20210.630 ppb110.630 ppb
20220.250 ppb110.250 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
2018-12-2141591200.300 ppb
2019-04-2242718990.300 ppb
2020-03-1745898850.400 ppb
2021-10-26810-6194-80.630 ppb
2022-08-23810-35172-30.250 ppb
2023-02-24810-54848-3ND