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EWG's Tap Water Database — 2021 UPDATE

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

Stillwater Water District 1

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.

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND90ND
2016ND20ND
2017ND20ND
2018ND80ND
2019ND100ND

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
2014-11-18341118151ND
2015-05-28350528047ND
2015-06-22350622055ND
2015-06-22350622056ND
2015-06-22350622058ND
2015-06-22350622057ND
2015-10-12351012042ND
2015-10-12351012043ND
2015-12-17351217085ND
2015-12-17351217086ND
2016-06-13360613082ND
2016-06-13360613083ND
2017-06-19370619129ND
2017-06-19370619130ND
2018-06-11380611168ND
2018-06-11380611167ND
2018-06-11380611171ND
2018-06-11380611170ND
2018-06-11380611166ND
2018-06-11380611169ND
2018-06-11380611172ND
2018-06-11380611173ND
2019-02-27390227082.2ND
2019-02-27390227086.2ND
2019-02-27390227084.2ND
2019-02-27390227080.2ND
2019-02-27390227078.2ND
2019-08-07390808182ND
2019-08-07390808173ND
2019-08-07390808179ND
2019-08-07390808169ND
2019-08-08390808176ND