Know Your Environment. Protect Your Health.

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

Triple R 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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND30ND
2020ND50ND
2021ND90ND
2022ND30ND
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
2019-12-11CA5400670_002_002-201912111155ND
2019-12-11CA5400670_011_011-201912111210ND
2019-12-11CA5400670_005_005-201912111140ND
2020-03-22CA5400670_011_011-202003221250ND
2020-06-29CA5400670_007_007-202006291600ND
2020-06-29CA5400670_011_011-202006291640ND
2020-09-28CA5400670_011_011-202009281620ND
2020-12-20CA5400670_011_011-202012201140ND
2021-03-31CA5400670_011_011-202103311200ND
2021-03-31CA5400670_001_001-202103311015ND
2021-03-31CA5400670_008_008-202103311115ND
2021-06-24CA5400670_006_006-202106240835ND
2021-06-24CA5400670_009_009-202106240920ND
2021-09-27CA5400670_009_009-202109271700ND
2021-09-27CA5400670_007_007-202109271800ND
2021-12-22CA5400670_009_009-202112221325ND
2021-12-22CA5400670_007_007-202112221240ND
2022-03-27CA5400670_009_009-202203271435ND
2022-03-27CA5400670_007_007-202203271700ND
2022-06-24CA5400670_004_004-202206241320ND