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EWG's Tap Water Database — 2019 UPDATE

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

City of Manteca

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.

 

109

Samples

0

Samples exceeding legal limit (MCL)

74

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.0994 ppb1612ND - 0.150 ppb
20130.0869 ppb1712ND - 0.170 ppb
20140.0840 ppb2012ND - 0.170 ppb
20150.0883 ppb1813ND - 0.160 ppb
20160.0707 ppb1813ND - 0.130 ppb
20170.0621 ppb2012ND - 0.130 ppb

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
2012-01-185810-013-07450.140 ppb
2012-02-085810-013-08400.140 ppb
2012-02-085810-044-0745ND
2012-03-135810-013-10000.130 ppb
2012-04-105810-013-06500.140 ppb
2012-05-155810-013-07050.150 ppb
2012-05-155810-016-1120ND
2012-06-125810-013-09390.140 ppb
2012-06-125810-028-0850ND
2012-06-125810-036-0810ND
2012-07-025810-013-09180.120 ppb
2012-08-145810-013-10400.110 ppb
2012-09-115810-013-07400.120 ppb
2012-10-045810-013-07200.120 ppb
2012-11-135810-013-07460.130 ppb
2012-12-115810-013-10200.150 ppb
2013-01-155810-013-11300.140 ppb
2013-01-155810-030-0930ND
2013-02-125810-013-08300.160 ppb
2013-03-135810-013-07160.110 ppb
2013-04-105810-012-0805ND
2013-04-105810-013-08350.140 ppb
2013-05-155810-013-08150.110 ppb
2013-05-155810-034-0746ND
2013-06-055810-013-08100.110 ppb
2013-06-055810-038-0745ND
2013-07-175810-013-08000.0980 ppb
2013-08-145810-013-07450.1000 ppb
2013-09-175810-013-08150.110 ppb
2013-09-175810-049-1020ND
2013-10-085810-013-07400.120 ppb
2013-11-125810-013-07440.110 ppb
2013-12-105810-013-05450.170 ppb
2014-01-145810-013-10250.140 ppb
2014-01-145810-014-0928ND
2014-01-145810-032-1010ND
2014-02-115810-013-07460.140 ppb
2014-03-115810-013-07360.120 ppb
2014-04-085810-013-05530.120 ppb
2014-05-135810-013-07470.160 ppb
2014-06-105810-013-08430.170 ppb
2014-06-105810-015-0720ND
2014-06-105810-028-0930ND
2014-06-105810-036-1115ND
2014-06-105810-042-0750ND
2014-06-175810-038-0655ND
2014-07-085810-013-07050.150 ppb
2014-08-125810-013-09350.110 ppb
2014-08-125810-040-0950ND
2014-09-095810-013-07350.140 ppb
2014-10-075810-013-06050.130 ppb
2014-11-125810-013-06560.140 ppb
2014-12-095810-013-05300.160 ppb
2015-01-135810-013-06200.140 ppb
2015-02-105810-013-06080.160 ppb
2015-02-105810-044-0644ND
2015-03-105810-013-07460.140 ppb
2015-04-075810-013-06550.130 ppb
2015-04-215810-013-06000.120 ppb
2015-05-125810-013-07500.110 ppb
2015-05-125810-016-0725ND
2015-06-095810-013-07270.110 ppb
2015-06-095810-028-0812ND
2015-06-095810-036-0836ND
2015-07-075810-013-10200.130 ppb
2015-07-215810-034-0812ND
2015-08-115810-013-09000.110 ppb
2015-09-085810-013-07550.110 ppb
2015-10-075810-013-05500.120 ppb
2015-11-105810-013-07200.110 ppb
2015-12-015810-013-07150.1000 ppb
2016-01-135810-013-06450.120 ppb
2016-01-135810-030-08050.0140 ppb
2016-02-025810-013-07080.110 ppb
2016-03-085810-013-06300.110 ppb
2016-04-195810-012-0920ND
2016-04-195810-013-05350.110 ppb
2016-05-175810-013-08150.0840 ppb
2016-06-145810-013-08300.0970 ppb
2016-06-215810-028-0635ND
2016-07-125810-013-05450.110 ppb
2016-08-015810-013-07000.0920 ppb
2016-08-015810-049-0830ND
2016-09-135810-013-08000.1000 ppb
2016-09-135810-049-0535ND
2016-10-045810-013-09150.0990 ppb
2016-10-045810-036-0700ND
2016-11-085810-013-09400.0960 ppb
2016-12-135810-013-07450.130 ppb
2017-01-095810-013-10500.130 ppb
2017-01-095810-014-0850ND
2017-01-095810-032-1110ND
2017-02-145810-013-09500.120 ppb
2017-03-145810-013-07250.110 ppb
2017-04-045810-013-08050.130 ppb
2017-05-095810-013-06400.0910 ppb
2017-06-135810-013-06450.0960 ppb
2017-06-135810-028-0555ND
2017-06-135810-038-0626ND
2017-06-135810-042-0745ND
2017-07-105810-013-07210.0970 ppb
2017-08-085810-013-08310.0790 ppb
2017-08-085810-015-0625ND
2017-08-085810-040-0609ND
2017-09-125810-013-07250.0880 ppb
2017-10-095810-013-08110.1000 ppb
2017-10-095810-036-1155ND
2017-11-145810-013-08210.1000 ppb
2017-12-125810-013-07020.1000 ppb