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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

South Central Regional Water District North Burleigh

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.

 

42

Samples

0

Samples exceeding legal limit (MCL)

21

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.405 ppb42ND - 1.02 ppb
20130.340 ppb51ND - 1.70 ppb
20140.0625 ppb81ND - 0.500 ppb
20150.291 ppb84ND - 0.620 ppb
20160.765 ppb86ND - 1.71 ppb
20171.04 ppb98ND - 1.61 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
2012-02-2712-S203ND
2012-05-2112-S578ND
2012-08-2112-S15760.600 ppb
2012-10-2312-S22611.02 ppb
2013-02-1913-S681.70 ppb
2013-05-2013-S592ND
2013-08-1213-S1644ND
2013-11-1813-S2600ND
2013-11-1813-S2601ND
2014-02-1814-S192ND
2014-02-1814-S1930.500 ppb
2014-05-1914-S761ND
2014-05-1914-S762ND
2014-08-1814-S1962ND
2014-08-1814-S1961ND
2014-11-1714-S2755ND
2014-11-1714-S2754ND
2015-02-1715-S134ND
2015-02-1715-S135ND
2015-05-1915-S736ND
2015-05-1915-S737ND
2015-08-1715-S16660.620 ppb
2015-08-1715-S16650.530 ppb
2015-11-1015-S24580.610 ppb
2015-11-1015-S24570.570 ppb
2016-03-1616-S594ND
2016-03-1616-S595ND
2016-05-1716-S9210.550 ppb
2016-05-1716-S9200.610 ppb
2016-08-2216-S20940.770 ppb
2016-08-2216-S20950.880 ppb
2016-11-1416-S27591.71 ppb
2016-11-1416-S27601.60 ppb
2017-02-2117-S2411.41 ppb
2017-02-2117-S2421.02 ppb
2017-03-1317-S3711.61 ppb
2017-05-1517-S6841.18 ppb
2017-05-1517-S6851.20 ppb
2017-08-2117-S17050.560 ppb
2017-08-2117-S1706ND
2017-11-1417-S24141.04 ppb
2017-11-1417-S24151.30 ppb