Know Your Environment. Protect Your Health.

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

Hynes Estates Mutual Water Company

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.

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND110ND
2020ND100ND
2021ND40ND
2022N/A00N/A
2023N/A00N/A

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
2018-01-04CA3000519_001_001-201801040900ND
2018-04-16CA3000519_001_001-201804161115ND
2018-07-03CA3000519_001_001-201807030935ND
2018-10-09CA3000519_001_001-201810091015ND
2019-01-08CA3000519_001_001-201901081130ND
2019-04-01CA3000519_001_001-201904010840ND
2019-06-24CA3000519_001_001-201906240915ND
2019-07-01CA3000519_001_001-201907011000ND
2019-07-10CA3000519_005_005-201907101130ND
2019-07-10CA3000519_005_005-201907101130ND
2019-08-22CA3000519_005_005-201908221045ND
2019-08-22CA3000519_005_005-201908221035ND
2019-10-02CA3000519_001_001-201910021000ND
2019-11-07CA3000519_005_005-201911071310ND
2019-11-07CA3000519_005_005-201911071310ND
2020-02-04CA3000519_005_005-202002041035ND
2020-02-04CA3000519_005_005-202002041035ND
2020-02-04CA3000519_001_001-202002041125ND
2020-05-05CA3000519_001_001-202005051030ND
2020-05-05CA3000519_005_005-202005051010ND
2020-05-05CA3000519_005_005-202005051010ND
2020-07-07CA3000519_005_005-202007071000ND
2020-08-25CA3000519_001_001-202008250920ND
2020-10-01CA3000519_005_005-202010010930ND
2020-11-17CA3000519_001_001-202011170900ND
2021-02-04CA3000519_005_005-202102041240ND
2021-02-04CA3000519_001_001-202102041225ND
2021-04-08CA3000519_005_005-202104081045ND
2021-05-03CA3000519_001_001-202105030805ND