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EWG's Tap Water Database — 2021 UPDATE

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

Page Avenue 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.

MORE ABOUT THIS CONTAMINANT

 

43

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND100ND
2017ND140ND
2018ND60ND
2019ND50ND

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
2014-01-164417-001-1100ND
2014-04-014417-001-1300ND
2014-07-024417-001-1205ND
2014-10-024417-001-1140ND
2015-01-134417-001-0940ND
2015-04-024417-001-1045ND
2015-07-014417-001-1110ND
2015-10-014417-001-1140ND
2016-01-054417-001-1300ND
2016-03-144417-001-0910ND
2016-04-044417-001-1140ND
2016-05-174417-001-1025ND
2016-09-124417-001-1110ND
2016-10-034417-001-1130ND
2016-10-274417-001-1020ND
2016-10-274417-001-1035ND
2016-11-164417-001-1220ND
2016-12-054417-001-1045ND
2017-01-044417-001-1140ND
2017-02-024417-001-0950ND
2017-03-074417-001-0930ND
2017-03-134417-001-1035ND
2017-03-284417-001-1010ND
2017-04-064417-001-1115ND
2017-05-044417-001-1240ND
2017-06-054417-001-1100ND
2017-07-064417-001-1135ND
2017-08-084417-001-1100ND
2017-08-234417-001-1120ND
2017-08-234417-001-1105ND
2017-09-074417-001-0845ND
2017-10-034417-001-1040ND
2018-01-034417-001-1120ND
2018-01-304417-001-1050ND
2018-04-114417-001-1330ND
2018-05-074417-001-0920ND
2018-07-034417-001-1110ND
2018-10-014417-001-1220ND
2019-01-084417-001-1210ND
2019-04-014417-001-0925ND
2019-06-244417-001-1020ND
2019-07-014417-001-1045ND
2019-10-024417-001-1100ND