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EWG's Tap Water Database — 2021 UPDATE

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

Hope Water Light Comm.

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

 

57

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND140ND
2015ND50ND
2016ND100ND
2017ND140ND
2018ND60ND
2019ND80ND

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
2014-03-1114072010103ND
2014-03-1114072010303ND
2014-03-1114072009803ND
2014-03-1114072009903ND
2014-03-1114072010203ND
2014-03-1114072010003ND
2014-05-2114142009502ND
2014-05-2114142009703ND
2014-05-2114142008802ND
2014-05-2114142009402ND
2014-05-2114142009803ND
2014-05-2114142009602ND
2014-08-1914233009001ND
2014-10-2914303002701ND
2015-03-0215065000503ND
2015-04-0615100000103ND
2015-07-0815190002101ND
2015-10-0815282005601ND
2015-10-2015296000401ND
2016-01-2616028001303ND
2016-02-0916042000703ND
2016-04-0416098011703ND
2016-07-0516189010801ND
2016-07-0516189010901ND
2016-07-0516189011001ND
2016-07-0516189011101ND
2016-07-0516189011201ND
2016-07-0516189011301ND
2016-10-0516280008901ND
2017-01-0417005004903ND
2017-01-0417005005303ND
2017-01-0417005005103ND
2017-01-0417005005203ND
2017-01-0417005005403ND
2017-01-0417005005003ND
2017-05-0917130008703ND
2017-05-0917130008203ND
2017-05-0917130008603ND
2017-05-0917130008403ND
2017-05-0917130008503ND
2017-05-0917130008303ND
2017-07-1817200003901ND
2017-10-0317278002101ND
2018-02-2018053003203ND
2018-04-0418095008602ND
2018-07-0318186006303ND
2018-07-2418207000701ND
2018-10-0318277006201ND
2018-12-0418340005501ND
2019-02-0619038004103ND
2019-08-0519220002701ND
2019-08-0519220002801ND
2019-08-0519220002901ND
2019-08-0519220002501ND
2019-08-0519220002601ND
2019-08-0519220002301ND
2019-10-2919304000701ND