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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Warwick

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

152

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND320ND
20167.03 ppb328ND - 44.0 ppb
2017ND320ND
2018ND320ND
2019ND160ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-11-171411-25799-001ND
2014-11-171411-25799-002ND
2014-11-171411-25799-003ND
2014-11-171411-25799-004ND
2014-11-171411-25799-005ND
2014-11-171411-25799-006ND
2014-11-171411-25799-007ND
2014-11-171411-25799-008ND
2015-02-191502-03456-001TND
2015-02-191502-03456-002TND
2015-02-191502-03456-003TND
2015-02-191502-03456-004TND
2015-02-191502-03456-005TND
2015-02-191502-03456-006TND
2015-02-191502-03456-007TND
2015-02-191502-03456-008TND
2015-05-201506-10278-001ND
2015-05-201506-10278-002ND
2015-05-201506-10278-003ND
2015-05-201506-10278-004ND
2015-05-201506-10278-005ND
2015-05-201506-10278-006ND
2015-05-201506-10278-007ND
2015-05-201506-10278-008ND
2015-08-201508-17876-001ND
2015-08-201508-17876-002ND
2015-08-201508-17876-003ND
2015-08-201508-17876-004ND
2015-08-201508-17876-005ND
2015-08-201508-17876-006ND
2015-08-201508-17876-007ND
2015-08-201508-17876-008ND
2015-11-181511-25132-001ND
2015-11-181511-25132-002ND
2015-11-181511-25132-003ND
2015-11-181511-25132-004ND
2015-11-181511-25132-005ND
2015-11-181511-25132-006ND
2015-11-181511-25132-007ND
2015-11-181511-25132-008ND
2016-02-191602-03944-00123.0 ppb
2016-02-191602-03944-00212.0 ppb
2016-02-191602-03944-00343.0 ppb
2016-02-191602-03944-00426.0 ppb
2016-02-191602-03944-00538.0 ppb
2016-02-191602-03944-00620.0 ppb
2016-02-191602-03944-00744.0 ppb
2016-02-191602-03944-00819.0 ppb
2016-05-181605-11352-001ND
2016-05-181605-11352-002ND
2016-05-181605-11352-003ND
2016-05-181605-11352-004ND
2016-05-181605-11352-005ND
2016-05-181605-11352-006ND
2016-05-191605-11495-001ND
2016-05-191605-11495-002ND
2016-08-171608-19355-001ND
2016-08-171608-19355-002ND
2016-08-171608-19355-003ND
2016-08-171608-19355-004ND
2016-08-171608-19355-005ND
2016-08-171608-19355-006ND
2016-08-171608-19355-007ND
2016-08-171608-19355-008ND
2016-11-221611-27451-001ND
2016-11-221611-27451-002ND
2016-11-221611-27451-003ND
2016-11-221611-27451-004ND
2016-11-231611-27521-001ND
2016-11-231611-27521-002ND
2016-11-231611-27521-003ND
2016-11-231611-27521-004ND
2017-02-161702-03359-001ND
2017-02-161702-03359-002ND
2017-02-161702-03359-003ND
2017-02-161702-03359-004ND
2017-02-161702-03359-005ND
2017-02-161702-03359-006ND
2017-02-161702-03359-007ND
2017-02-161702-03359-008ND
2017-05-181705-10525-001ND
2017-05-181705-10525-002ND
2017-05-181705-10525-003ND
2017-05-181705-10525-004ND
2017-05-181705-10525-005ND
2017-05-191705-10598-001ND
2017-05-191705-10598-002ND
2017-05-191705-10598-003ND
2017-08-231708-18233-001ND
2017-08-231708-18233-002ND
2017-08-231708-18233-003ND
2017-08-231708-18233-004ND
2017-08-231708-18233-005ND
2017-08-231708-18233-006ND
2017-08-231708-18233-007ND
2017-08-241708-18359-001ND
2017-11-291711-25825-001ND
2017-11-291711-25825-002ND
2017-11-291711-25825-003ND
2017-11-291711-25825-004ND
2017-11-291711-25825-005ND
2017-11-291711-25825-006ND
2017-11-291711-25825-007ND
2017-11-291711-25825-008ND
2018-02-151802-03427-001ND
2018-02-151802-03427-002ND
2018-02-151802-03427-003ND
2018-02-151802-03427-004ND
2018-02-151802-03427-005ND
2018-02-151802-03427-006ND
2018-02-151802-03427-007ND
2018-02-151802-03427-008ND
2018-05-151805-10139-001ND
2018-05-151805-10139-002ND
2018-05-151805-10139-003ND
2018-05-151805-10139-004ND
2018-05-151805-10139-005ND
2018-05-151805-10139-006ND
2018-05-151805-10139-007ND
2018-05-161805-10246-001ND
2018-08-171808-17631-001ND
2018-08-171808-17631-002ND
2018-08-171808-17631-003ND
2018-08-171808-17631-004ND
2018-08-171808-17631-005ND
2018-08-171808-17631-006ND
2018-08-171808-17631-007ND
2018-08-171808-17631-008ND
2018-11-151811-24577-001ND
2018-11-151811-24577-002ND
2018-11-151811-24577-003ND
2018-11-151811-24577-004ND
2018-11-151811-24577-005ND
2018-11-151811-24577-006ND
2018-11-151811-24577-007ND
2018-11-151811-24577-008ND
2019-02-151902-03001-001ND
2019-02-151902-03001-002ND
2019-02-151902-03001-003ND
2019-02-151902-03001-004ND
2019-02-151902-03001-005ND
2019-02-151902-03001-006ND
2019-02-151902-03001-007ND
2019-02-151902-03001-008ND
2019-08-151908-15426-001ND
2019-08-151908-15426-002ND
2019-08-151908-15426-003ND
2019-08-151908-15426-004ND
2019-08-151908-15426-005ND
2019-08-151908-15426-006ND
2019-08-151908-15426-007ND
2019-08-151908-15426-008ND