Know Your Environment. Protect Your Health.

1,2-Dibromo-3-chloropropane (DBCP)

Equestrian Estates

1,2-Dibromo-3-chloropropane is a pesticide fumigant banned in the 1970s after scientists discovered it caused sterility in men who worked with it. The chemical causes cancer in laboratory animals and may cause cancer in people. Read More.

This pesticide breaks down very slowly in the environment. It remains in groundwater and drinking water wells in the agricultural areas where it was sprayed in the past. Men exposed to this pesticide in the fields suffered from infertility and testicular damage, and tended to have fewer male babies.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND40ND
2021ND30ND
2022ND40ND
2023ND40ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.0017 ppb

The EWG Health Guideline of 0.0017 ppb for 1,2-dibromo-3-chloropropane 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): 0.2 ppb

The legal limit for 1,2-dibromo-3-chloropropane, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit does not fully protect against the risk of cancer due to 1,2-dibromo-3-chloropropane exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2018-07-09SI80709301ND
2019-07-08SI90707601ND
2020-06-01SI00601401ND
2020-10-05SI01004501ND
2020-11-18SI01115001ND
2020-11-18SI01115002ND
2021-06-01SI10603001ND
2021-09-29SI10936401ND
2021-11-01SI11100401ND
2022-03-30SI20323801ND
2022-06-06SI20611601ND
2022-08-01SI20800801ND
2022-10-03SI21000701ND
2023-01-03SI30101801ND
2023-06-05SI30605501ND
2023-07-11SI30714101ND
2023-10-02SI31001001ND