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EWG's Tap Water Database — 2021 UPDATE

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

California American Water Company - Suburban

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

 

145

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND500ND
20160.00750 ppb83ND - 0.0300 ppb
20170.00909 ppb114ND - 0.0300 ppb
20180.00202 ppb544ND - 0.0300 ppb
20190.00357 ppb142ND - 0.0300 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
2014-02-131225-014-0955ND
2014-02-191225-012-0900ND
2014-02-271225-006-1005ND
2014-05-071225-014-1005ND
2014-05-081225-012-1145ND
2014-06-171225-018-1150ND
2014-08-111225-014-0930ND
2014-10-151225-014-0935ND
2015-03-251225-014-1212ND
2015-04-061225-006-1105ND
2015-04-061225-013-0955ND
2015-04-061225-014-1000ND
2015-04-061225-016-1000ND
2015-04-061225-017-1035ND
2015-04-061225-019-0910ND
2015-04-061225-049-0905ND
2015-04-071225-004-1015ND
2015-04-071225-007-1115ND
2015-04-071225-008-1135ND
2015-04-071225-010-1020ND
2015-04-071225-051-1005ND
2015-04-071225-052-1130ND
2015-04-081225-001-0930ND
2015-04-081225-005-1045ND
2015-04-081225-012-0925ND
2015-04-081225-044-0920ND
2015-04-091225-011-0900ND
2015-04-151225-048-0937ND
2015-04-231225-021-1245ND
2015-05-121225-047-1205ND
2015-06-181225-015-1220ND
2015-06-181225-020-1120ND
2015-07-081225-004-0850ND
2015-07-081225-006-0950ND
2015-07-081225-008-0910ND
2015-07-081225-010-1110ND
2015-07-081225-013-1100ND
2015-07-081225-016-1030ND
2015-07-081225-019-0940ND
2015-07-081225-021-1030ND
2015-07-091225-001-0945ND
2015-07-091225-017-1045ND
2015-07-141225-011-1030ND
2015-07-151225-007-0920ND
2015-07-151225-052-1025ND
2015-07-201225-014-0920ND
2015-07-201225-049-1210ND
2015-07-221225-044-0845ND
2015-07-221225-051-1110ND
2015-07-271225-018-1005ND
2015-07-271225-053-1220ND
2015-07-281225-048-0900ND
2015-08-261225-005-0930ND
2015-08-271225-047-0750ND
2015-09-211225-015-1045ND
2015-10-081225-014-0940ND
2015-10-261225-018-1030ND
2015-10-261225-020-0915ND
2016-01-181225-018-10450.01000 ppb
2016-04-051225-014-0850ND
2016-04-111225-018-0910ND
2016-07-061225-018-08520.0300 ppb
2016-07-211225-014-0805ND
2016-10-111225-012-1130ND
2016-10-131225-018-09350.0200 ppb
2016-10-241225-012-0930ND
2017-01-311225-012-0840ND
2017-02-131225-012-1205ND
2017-02-141225-018-12300.0300 ppb
2017-05-081225-012-0910ND
2017-05-081225-018-08300.0300 ppb
2017-08-021225-018-10050.0200 ppb
2017-08-211225-012-0920ND
2017-10-121225-050-1300ND
2017-11-061225-018-10050.0200 ppb
2017-11-301225-012-0845ND
2017-12-061225-014-1140ND
2018-02-131225-012-0835ND
2018-02-131225-018-08050.0300 ppb
2018-02-271225-014-0925ND
2018-05-011225-008-1005ND
2018-05-011225-010-1130ND
2018-05-011225-011-0900ND
2018-05-011225-018-08150.0300 ppb
2018-05-011225-021-1100ND
2018-05-011225-047-0940ND
2018-05-011225-049-1237ND
2018-05-011225-051-1145ND
2018-05-021225-001-0840ND
2018-05-021225-004-1045ND
2018-05-021225-005-0916ND
2018-05-021225-007-1130ND
2018-05-021225-013-1000ND
2018-05-021225-016-0903ND
2018-05-021225-019-1011ND
2018-05-021225-020-1232ND
2018-05-021225-044-1028ND
2018-05-021225-052-1210ND
2018-05-031225-006-1053ND
2018-05-031225-017-1215ND
2018-05-081225-012-1015ND
2018-05-081225-014-1310ND
2018-05-081225-053-0845ND
2018-08-069590-005-0810ND
2018-08-069590-014-1053ND
2018-08-069590-018-09150.0290 ppb
2018-08-069590-020-1240ND
2018-08-069590-051-1230ND
2018-08-089590-007-0945ND
2018-08-089590-011-1305ND
2018-08-089590-044-1110ND
2018-08-089590-047-1230ND
2018-08-099590-004-0905ND
2018-08-099590-006-1300ND
2018-08-099590-016-0815ND
2018-08-099590-049-1100ND
2018-08-099590-052-1252ND
2018-08-139590-010-1140ND
2018-08-139590-013-1015ND
2018-08-139590-017-0900ND
2018-08-139590-019-1015ND
2018-08-139590-021-1020ND
2018-08-149590-012-1130ND
2018-08-149590-053-0905ND
2018-09-061225-001-1035ND
2018-09-119590-009-0845ND
2018-10-179590-008-1030ND
2018-11-051225-014-0920ND
2018-11-051225-018-10000.0200 ppb
2018-11-061225-012-0940ND
2018-12-121225-009-0915ND
2019-02-111225-018-11400.0300 ppb
2019-02-191225-012-1330ND
2019-05-151225-018-1540ND
2019-06-181225-014-1100ND
2019-06-201225-012-1410ND
2019-08-071225-014-1200ND
2019-08-081225-018-14400.0200 ppb
2019-08-121225-012-1200ND
2019-08-121225-015-1215ND
2019-08-121225-050-1435ND
2019-11-111225-012-1220ND
2019-11-111225-014-1420ND
2019-11-111225-018-1505ND
2019-11-121225-050-1532ND