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EWG's Tap Water Database — 2021 UPDATE

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

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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.

MORE ABOUT THIS CONTAMINANT

 

45

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND150ND
2019ND300ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2018-04-10AJ87090ND
2018-04-10AJ87089ND
2018-04-10AJ87088ND
2018-04-10AJ87087ND
2018-04-10AJ87086ND
2018-07-10AJ93446ND
2018-07-10AJ93445ND
2018-07-10AJ93444ND
2018-07-10AJ93443ND
2018-07-10AJ93442ND
2018-12-18AK08333ND
2018-12-18AK08329ND
2018-12-18AK08330ND
2018-12-18AK08331ND
2018-12-18AK08332ND
2019-01-08AK09031ND
2019-01-08AK09030ND
2019-01-08AK09029ND
2019-01-08AK09028ND
2019-01-08AK09027ND
2019-01-22AK09873ND
2019-01-22AK09877ND
2019-01-22AK09875ND
2019-01-22AK09871ND
2019-01-22AK09869ND
2019-04-08AK14970ND
2019-04-08AK14968ND
2019-04-08AK14966ND
2019-04-08AK14964ND
2019-04-08AK14962ND
2019-04-15AK15170ND
2019-04-15AK15169ND
2019-04-15AK15171ND
2019-04-15AK15172ND
2019-04-15AK15173ND
2019-07-16AK22599ND
2019-07-16AK22595ND
2019-07-16AK22593ND
2019-07-16AK22588ND
2019-07-16AK22581ND
2019-10-07AK34621ND
2019-10-07AK34629ND
2019-10-07AK34627ND
2019-10-07AK34625ND
2019-10-07AK34623ND