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EWG's Tap Water Database

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

Grants Way

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.

 

42

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND70ND
2011ND80ND
2012ND90ND
2013ND40ND
2014ND70ND
2015ND70ND

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 0.0017 ppb

The 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.

ppb = parts per billion.

EPA Maximum Contaminant
Level (MCL) 0.2 ppb

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppb = parts per billion.

EPA Maximum Contaminant
Level Goal (MCLG)0 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Lab ID Result
2010-01-251000008-01ND
2010-04-14S73115ND
2010-04-14A10040858-01ND
2010-09-13A10090774-02ND
2010-09-131007341-02ND
2010-10-191008946-02ND
2010-10-19S254798ND
2011-01-251101262-02ND
2011-01-26S227888ND
2011-04-251107902-01ND
2011-04-25S227921ND
2011-07-26S201364ND
2011-07-269917993001ND
2011-10-21S196634ND
2011-10-219933973001ND
2012-01-26S313461ND
2012-01-269949707001ND
2012-04-26S313584ND
2012-04-269965576001ND
2012-07-111036853002ND
2012-07-24S366444ND
2012-07-249980553001ND
2012-10-19S382326ND
2012-10-199994876001ND
2013-01-141007585001ND
2013-01-14S382342ND
2013-04-181023212001ND
2013-10-2935114705002ND
2014-01-30S438321ND
2014-01-3035125044001ND
2014-04-2335135572002ND
2014-04-23S479078ND
2014-07-23L5171337-1ND
2014-07-2335147898002ND
2014-10-15S257742ND
2015-01-15S504601ND
2015-04-2135185753002ND
2015-04-21S580497ND
2015-08-24S612406ND
2015-08-2435204271001ND
2015-10-20S614751ND
2015-10-2035213063001ND