Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromoform

Southern Utilities

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

 

245

Samples

0

Samples exceeding legal limit (MCL)

23

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.153 ppb242ND - 2.27 ppb
20150.333 ppb537ND - 3.85 ppb
20160.137 ppb423ND - 2.46 ppb
20170.171 ppb424ND - 2.01 ppb
20180.138 ppb423ND - 2.39 ppb
20190.148 ppb424ND - 1.80 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
2014-03-04Q1406982001ND
2014-03-04Q1406982002ND
2014-03-04Q1406982003ND
2014-03-04Q1406982004ND
2014-06-12Q1421120001ND
2014-06-12Q1421120010ND
2014-06-12Q1421120011ND
2014-06-12Q1421120012ND
2014-06-12Q1421120013ND
2014-06-30Q1424477001ND
2014-06-30Q1424477045ND
2014-08-14Q1436466003ND
2014-08-14Q1436466049ND
2014-08-14Q1436466052ND
2014-08-26Q1439538028ND
2014-08-26Q1439538025ND
2014-09-15Q1444073001ND
2014-09-15Q1444073002ND
2014-10-02Q14505440021.39 ppb
2014-10-02Q1450544015ND
2014-10-02Q1450544016ND
2014-10-02Q1450544017ND
2014-10-02Q1450544028ND
2014-10-02Q14505440342.27 ppb
2015-01-22Q1502328003ND
2015-01-22Q1502328005ND
2015-01-22Q1502328007ND
2015-01-22Q1502328010ND
2015-01-22Q1502328011ND
2015-01-22Q15023280132.44 ppb
2015-01-22Q15023280163.69 ppb
2015-01-22Q1502328030ND
2015-01-22Q1502328031ND
2015-01-22Q1502328001ND
2015-01-22Q1502328002ND
2015-03-16Q1509639004ND
2015-04-02Q1512260002ND
2015-04-02Q1512260003ND
2015-04-02Q1512260006ND
2015-04-02Q1512260007ND
2015-04-02Q1512260010ND
2015-04-02Q15122600112.71 ppb
2015-04-02Q15122600143.85 ppb
2015-04-02Q1512260015ND
2015-04-02Q1512260018ND
2015-04-02Q15122600191.95 ppb
2015-04-02Q1512260021ND
2015-04-30Q1515979002ND
2015-04-30Q1515979003ND
2015-04-30Q1515979005ND
2015-04-30Q15159790081.10 ppb
2015-04-30Q1515979010ND
2015-04-30Q1515979011ND
2015-04-30Q1515979014ND
2015-04-30Q1515979015ND
2015-04-30Q1515979030ND
2015-04-30Q1515979031ND
2015-04-30Q1515979032ND
2015-04-30Q1515979033ND
2015-07-27Q1529118003ND
2015-07-27Q1529118004ND
2015-07-27Q1529118005ND
2015-07-27Q1529118006ND
2015-09-10Q1535262001ND
2015-09-10Q1535262003ND
2015-09-10Q1535262005ND
2015-09-10Q1535262008ND
2015-09-10Q1535262009ND
2015-10-01Q1538632014ND
2015-10-01Q1538632015ND
2015-10-01Q1538632003ND
2015-10-01Q1538632001ND
2015-10-01Q1538632004ND
2015-10-01Q1538632006ND
2015-10-01Q1538632009ND
2015-10-01Q15386320101.90 ppb
2015-10-01Q1538632012ND
2016-01-07Q1600474008ND
2016-01-07Q1600474010ND
2016-01-07Q1600474011ND
2016-01-07Q1600474013ND
2016-01-07Q1600474001ND
2016-01-07Q1600474002ND
2016-01-07Q1600474003ND
2016-01-07Q1600474004ND
2016-04-07Q1613819001ND
2016-04-07Q1613819003ND
2016-04-07Q1613819006ND
2016-04-07Q16138190071.88 ppb
2016-04-07Q16138190101.43 ppb
2016-04-07Q1613819011ND
2016-04-07Q1613819014ND
2016-04-07Q1613819016ND
2016-04-07Q1613819032ND
2016-04-07Q1613819033ND
2016-04-07Q1613819030ND
2016-04-07Q1613819031ND
2016-06-15Q1624252001ND
2016-07-26Q1630299001ND
2016-07-26Q1630299002ND
2016-07-26Q1630299003ND
2016-07-26Q1630299004ND
2016-10-06Q1642489002ND
2016-10-06Q1642489003ND
2016-10-06Q1642489005ND
2016-10-06Q1642489007ND
2016-10-06Q1642489009ND
2016-10-06Q1642489011ND
2016-10-06Q1642489014ND
2016-10-06Q1642489032ND
2016-10-06Q16424890342.46 ppb
2016-10-06Q1642489037ND
2016-10-06Q1642489042ND
2016-10-27Q1646014002ND
2016-10-27Q1646014004ND
2016-10-27Q1646014009ND
2016-10-27Q1646014010ND
2016-10-27Q1646014011ND
2016-10-27Q1646014012ND
2017-01-04Q1700369017ND
2017-01-04Q1700369021ND
2017-01-04Q1700369003ND
2017-01-04Q1700369023ND
2017-01-04Q1700369040ND
2017-01-04Q1700369014ND
2017-01-04Q1700369041ND
2017-01-04Q1700369015ND
2017-04-11Q1714804037ND
2017-04-11Q1714804038ND
2017-04-11Q1714804040ND
2017-04-11Q1714804035ND
2017-04-11Q1714804030ND
2017-04-11Q1714804031ND
2017-04-11Q1714804032ND
2017-04-11Q1714804033ND
2017-07-10Q1727874013ND
2017-07-10Q1727874002ND
2017-07-10Q1727874003ND
2017-07-10Q1727874011ND
2017-07-10Q1727874004ND
2017-08-15Q1735757001ND
2017-08-15Q1735757003ND
2017-08-15Q1735757005ND
2017-08-15Q1735757008ND
2017-08-15Q17357570451.55 ppb
2017-08-15Q1735757009ND
2017-09-13Q1743425003ND
2017-09-13Q1743425001ND
2017-09-13Q1743425006ND
2017-09-13Q1743425007ND
2017-09-13Q17434250101.85 ppb
2017-09-13Q1743425011ND
2017-10-17Q17535640191.76 ppb
2017-10-17Q1753564021ND
2017-10-17Q1753564002ND
2017-10-17Q1753564023ND
2017-10-17Q17535640242.01 ppb
2017-10-17Q1753564042ND
2017-10-17Q1753564045ND
2017-10-17Q1753564043ND
2017-10-17Q1753564046ND
2018-02-05Q1804375007ND
2018-02-05Q1804375004ND
2018-02-05Q1804375001ND
2018-02-05Q1804375003ND
2018-02-05Q1804375002ND
2018-03-01Q1808766029ND
2018-03-01Q1808766021ND
2018-03-01Q1808766031ND
2018-03-01Q18087660022.11 ppb
2018-03-01Q1808766035ND
2018-03-01Q1808766004ND
2018-03-01Q1808766022ND
2018-03-01Q1808766005ND
2018-03-01Q1808766033ND
2018-03-01Q1808766008ND
2018-03-01Q1808766036ND
2018-04-26Q1817001001ND
2018-04-26Q1817001003ND
2018-04-26Q1817001002ND
2018-04-26Q1817001004ND
2018-08-07Q1831211031ND
2018-08-07Q1831211034ND
2018-08-07Q1831211036ND
2018-08-07Q1831211038ND
2018-08-07Q18312110241.31 ppb
2018-08-07Q1831211025ND
2018-08-07Q1831211027ND
2018-08-07Q1831211030ND
2018-08-07Q1831211019ND
2018-08-07Q1831211020ND
2018-08-07Q1831211021ND
2018-08-07Q1831211022ND
2018-10-02Q1839156004ND
2018-10-02Q1839156003ND
2018-10-02Q1839156001ND
2018-10-02Q1839156002ND
2018-10-31Q1843763005ND
2018-10-31Q1843763007ND
2018-10-31Q1843763021ND
2018-10-31Q1843763009ND
2018-10-31Q1843763012ND
2018-10-31Q18437630232.39 ppb
2019-02-21Q1907660034ND
2019-02-21Q1907660036ND
2019-02-21Q1907660037ND
2019-02-21Q1907660039ND
2019-02-21Q19076600421.62 ppb
2019-02-21Q1907660023ND
2019-02-21Q1907660025ND
2019-02-21Q1907660027ND
2019-02-21Q1907660029ND
2019-02-21Q1907660032ND
2019-02-21Q1907660018ND
2019-02-21Q1907660019ND
2019-02-21Q1907660020ND
2019-02-21Q1907660021ND
2019-03-26Q1912175003ND
2019-03-26Q1912175004ND
2019-03-26Q1912175006ND
2019-03-26Q1912175008ND
2019-03-26Q1912175010ND
2019-03-26Q1912175012ND
2019-03-26Q19121750141.80 ppb
2019-06-20Q1938262001ND
2019-06-20Q1938262002ND
2019-06-20Q1938262003ND
2019-06-20Q1938262004ND
2019-08-08Q1952585007ND
2019-08-08Q19525850091.60 ppb
2019-08-08Q1952585015ND
2019-08-08Q1952585017ND
2019-08-08Q1952585019ND
2019-08-08Q1952585021ND
2019-08-08Q19525850231.20 ppb
2019-08-08Q1952585025ND
2019-08-08Q1952585027ND
2019-08-08Q1952585002ND
2019-08-08Q1952585003ND
2019-08-08Q1952585004ND
2019-08-08Q1952585005ND
2019-10-09Q1972095001ND
2019-10-09Q1972095002ND
2019-10-09Q1972095003ND
2019-10-09Q1972095004ND