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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

United Water Rahway

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

 

159

Samples

0

Samples exceeding legal limit (MCL)

105

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.474 ppb2812ND - 2.40 ppb
20151.13 ppb2815ND - 5.20 ppb
20160.650 ppb2816ND - 1.80 ppb
20171.95 ppb2723ND - 10.9 ppb
20181.14 ppb22220.460 ppb - 2.07 ppb
20192.60 ppb26260.227 ppb - 9.02 ppb

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
2014-01-064010154-04ND
2014-01-084010243-01ND
2014-01-084010243-03ND
2014-01-084010243-02ND
2014-01-084010243-042.40 ppb
2014-02-044020071-041.89 ppb
2014-03-044030106-041.25 ppb
2014-04-014040063-04ND
2014-04-084040313-010.710 ppb
2014-04-084040313-030.690 ppb
2014-04-084040313-020.690 ppb
2014-04-084040313-040.570 ppb
2014-05-064050210-040.280 ppb
2014-06-024060019-041.58 ppb
2014-07-024070083-04ND
2014-07-094070298-01ND
2014-07-094070298-03ND
2014-07-094070298-02ND
2014-07-094070298-04ND
2014-08-054080206-04ND
2014-09-024090068-041.71 ppb
2014-10-014100029-040.560 ppb
2014-10-084100275-01ND
2014-10-084100275-03ND
2014-10-084100275-020.940 ppb
2014-10-084100275-04ND
2014-11-044110128-04ND
2014-12-034120192-04ND
2015-01-072048864001ND
2015-01-072048864003ND
2015-01-072048864002ND
2015-01-072048864004ND
2015-01-082048865001ND
2015-02-0420536080014.20 ppb
2015-03-0320576250015.20 ppb
2015-04-0720643260012.60 ppb
2015-04-0820645550012.50 ppb
2015-04-0820645550032.20 ppb
2015-04-0820645550022.10 ppb
2015-04-0820645550041.90 ppb
2015-05-0720698160042.30 ppb
2015-06-0920760670041.10 ppb
2015-07-0620814570010.930 ppb
2015-07-0720816360010.960 ppb
2015-07-0720816360030.950 ppb
2015-07-0720816360020.960 ppb
2015-07-072081636004ND
2015-08-1020889010010.860 ppb
2015-09-0820945470012.90 ppb
2015-10-062100344001ND
2015-10-062100344003ND
2015-10-062100344002ND
2015-10-062100344004ND
2015-10-062100355001ND
2015-11-092108071001ND
2015-12-022111153001ND
2016-01-1121177740011.10 ppb
2016-01-136010328-01ND
2016-01-136010328-03ND
2016-01-136010328-020.800 ppb
2016-01-136010328-04ND
2016-02-082123461001ND
2016-03-0821295900011.30 ppb
2016-04-0421347090011.30 ppb
2016-04-1821379790011.30 ppb
2016-04-1821379790031.30 ppb
2016-04-1821379790021.40 ppb
2016-04-1821379790041.50 ppb
2016-05-092142323001ND
2016-06-032148847001ND
2016-07-132159510001ND
2016-07-132159510003ND
2016-07-132159510002ND
2016-07-132159510004ND
2016-07-2521624410011.10 ppb
2016-08-0821662700010.800 ppb
2016-09-0621729440010.760 ppb
2016-10-1121818330010.960 ppb
2016-10-1221823330010.860 ppb
2016-10-1221823330030.990 ppb
2016-10-1221823330021.80 ppb
2016-10-1221823330040.920 ppb
2016-11-072188181001ND
2016-12-092195131001ND
2017-01-067010175-040.375 ppb
2017-01-177010449-011.07 ppb
2017-01-177010449-031.39 ppb
2017-01-177010449-021.58 ppb
2017-01-177010449-041.08 ppb
2017-02-067020251-041.51 ppb
2017-03-097030313-041.12 ppb
2017-04-137040483-010.505 ppb
2017-04-137040483-03ND
2017-04-137040483-020.301 ppb
2017-04-137040483-040.350 ppb
2017-04-137040482-040.822 ppb
2017-05-037050241-040.646 ppb
2017-06-057060265-040.586 ppb
2017-07-067070145-041.27 ppb
2017-07-107070291-01ND
2017-07-107070291-05ND
2017-07-107070291-030.477 ppb
2017-07-107070291-07ND
2017-09-057090127-040.441 ppb
2017-10-047100200-044.59 ppb
2017-10-107100351-016.70 ppb
2017-10-107100351-037.78 ppb
2017-10-107100351-0210.9 ppb
2017-10-107100351-046.57 ppb
2017-11-177110665-040.947 ppb
2017-12-157120650-041.56 ppb
2018-01-098010322-041.47 ppb
2018-01-108010323-011.78 ppb
2018-01-108010323-031.69 ppb
2018-01-108010323-022.07 ppb
2018-01-108010323-041.48 ppb
2018-04-048040228-021.51 ppb
2018-04-128040520-011.12 ppb
2018-04-128040520-031.30 ppb
2018-04-128040520-021.24 ppb
2018-04-128040520-041.24 ppb
2018-06-048060087-031.07 ppb
2018-07-028070223-030.804 ppb
2018-07-128070586-010.613 ppb
2018-07-128070586-030.460 ppb
2018-07-128070586-020.573 ppb
2018-07-128070586-040.573 ppb
2018-09-058090147-031.40 ppb
2018-10-118100595-031.16 ppb
2018-10-188100902-010.724 ppb
2018-10-188100902-031.32 ppb
2018-10-188100902-020.703 ppb
2018-10-188100902-040.870 ppb
2019-02-069020246-011.66 ppb
2019-02-069020246-030.692 ppb
2019-02-069020246-021.74 ppb
2019-02-069020246-041.60 ppb
2019-02-069020279-031.27 ppb
2019-03-089030319-031.80 ppb
2019-04-109040484-011.70 ppb
2019-04-109040484-031.81 ppb
2019-04-109040484-022.00 ppb
2019-04-109040484-041.95 ppb
2019-04-129040655-010.761 ppb
2019-06-129060448-020.590 ppb
2019-06-279061126-010.361 ppb
2019-07-039070204-022.65 ppb
2019-07-109070417-016.40 ppb
2019-07-109070417-038.26 ppb
2019-07-109070417-027.20 ppb
2019-07-109070417-047.86 ppb
2019-09-099090315-021.78 ppb
2019-10-079100314-011.24 ppb
2019-10-079100314-031.77 ppb
2019-10-079100314-029.02 ppb
2019-10-079100314-041.09 ppb
2019-10-079100313-020.978 ppb
2019-11-159110694-021.24 ppb
2019-12-129120552-020.227 ppb