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EWG's Tap Water Database — 2021 UPDATE

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

City of Sherman

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015N/A00N/A
2016ND10ND
2017ND90ND
2018N/A00N/A
2019ND10ND

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
2014-04-22Q1412762012ND
2014-04-22Q1412762011ND
2014-08-20Q1438015018ND
2014-08-20Q1438015016ND
2014-11-13Q1455961014ND
2014-11-13Q1455961013ND
2014-11-13Q1455961011ND
2014-11-13Q1455961008ND
2014-11-13Q1455961006ND
2016-01-20Q1602479008ND
2017-01-12Q1701556015ND
2017-07-11Q1728660013ND
2017-07-11Q1728660020ND
2017-10-10Q1751594030ND
2017-10-10Q1751594028ND
2017-10-10Q1751594026ND
2017-10-10Q1751594045ND
2017-10-10Q1751594024ND
2017-11-14Q1758437007ND
2019-02-12Q1906434018ND