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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

City of Gainesville

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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

 

124

Samples

0

Samples exceeding legal limit (MCL)

81

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.684 ppb1910ND - 2.10 ppb
20158.65 ppb2016ND - 19.6 ppb
20161.95 ppb2114ND - 8.28 ppb
20174.38 ppb2215ND - 20.2 ppb
20185.35 ppb2113ND - 15.1 ppb
20197.06 ppb2113ND - 22.8 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2014-02-26Q1406422026ND
2014-02-26Q14064220291.15 ppb
2014-02-26Q1406422007ND
2014-02-26Q14064220081.34 ppb
2014-02-26Q1406422009ND
2014-02-26Q1406422010ND
2014-04-23Q14130760011.30 ppb
2014-04-23Q1413076002ND
2014-04-23Q14130760031.10 ppb
2014-04-23Q1413076004ND
2014-07-23Q14303070021.30 ppb
2014-07-23Q14303070031.000 ppb
2014-07-23Q14303070011.10 ppb
2014-07-23Q1430307004ND
2014-09-17Q1445111001ND
2014-10-27Q14542660012.10 ppb
2014-10-27Q14542660021.50 ppb
2014-10-27Q14542660031.10 ppb
2014-10-27Q1454266004ND
2015-03-30Q151175100511.8 ppb
2015-03-30Q15117510063.40 ppb
2015-03-30Q1511751007ND
2015-03-30Q1511751008ND
2015-06-16Q1522784012ND
2015-06-16Q15227840091.03 ppb
2015-06-16Q1522784011ND
2015-06-16Q152278400413.2 ppb
2015-06-16Q15227840055.98 ppb
2015-06-16Q152278400616.8 ppb
2015-06-16Q152278400715.4 ppb
2015-09-23Q153744400114.8 ppb
2015-09-23Q153744400316.6 ppb
2015-09-23Q15374440043.52 ppb
2015-09-23Q153744400519.6 ppb
2015-09-23Q153744400617.7 ppb
2015-12-09Q15489510019.32 ppb
2015-12-09Q15489510021.93 ppb
2015-12-09Q15489510039.40 ppb
2015-12-09Q154895100412.6 ppb
2016-01-14Q1601618014ND
2016-01-14Q16016180171.99 ppb
2016-01-14Q1601618012ND
2016-01-14Q16016180216.65 ppb
2016-01-14Q16016180223.67 ppb
2016-01-14Q16016180238.03 ppb
2016-01-14Q16016180248.28 ppb
2016-05-03Q1617287008ND
2016-05-03Q16172870031.38 ppb
2016-05-03Q1617287004ND
2016-05-03Q16172870051.08 ppb
2016-05-03Q1617287006ND
2016-09-29Q16412170011.01 ppb
2016-09-29Q16412170031.14 ppb
2016-09-29Q1641217004ND
2016-09-29Q16412170051.33 ppb
2016-09-29Q16412170061.36 ppb
2016-11-15Q16496000031.46 ppb
2016-11-15Q1649600001ND
2016-11-15Q16496000041.74 ppb
2016-11-15Q16496000021.83 ppb
2017-02-13Q1706172016ND
2017-02-13Q1706172017ND
2017-02-13Q1706172042ND
2017-02-13Q1706172020ND
2017-02-13Q17061720131.33 ppb
2017-02-13Q17061720101.53 ppb
2017-02-13Q17061720361.36 ppb
2017-03-16Q1711658003ND
2017-03-16Q1711658001ND
2017-05-02Q17185070011.20 ppb
2017-05-02Q17185070021.10 ppb
2017-05-02Q17185070031.65 ppb
2017-05-02Q17185070042.09 ppb
2017-07-24Q173062900115.8 ppb
2017-07-24Q17306290022.33 ppb
2017-07-24Q173062900316.3 ppb
2017-07-24Q173062900414.4 ppb
2017-09-06Q17417280021.66 ppb
2017-11-06Q175716100213.5 ppb
2017-11-06Q17571610011.97 ppb
2017-11-06Q175716100320.2 ppb
2017-11-06Q1757161004ND
2018-01-31Q1804068012ND
2018-01-31Q18040680112.22 ppb
2018-01-31Q1804068001ND
2018-01-31Q18040680198.77 ppb
2018-01-31Q1804068008ND
2018-01-31Q1804068020ND
2018-03-13Q1810190002ND
2018-05-03Q18180510066.59 ppb
2018-05-03Q181805100113.6 ppb
2018-05-03Q18180510022.44 ppb
2018-05-03Q18180510031.44 ppb
2018-05-03Q1818051004ND
2018-08-20Q183338500411.3 ppb
2018-08-20Q183338500112.8 ppb
2018-08-20Q1833385005ND
2018-08-20Q183338500210.6 ppb
2018-08-20Q18333850068.08 ppb
2018-11-14Q184611300415.1 ppb
2018-11-14Q18461130034.36 ppb
2018-11-14Q184611300215.1 ppb
2018-11-14Q1846113001ND
2019-02-26Q190840902410.00 ppb
2019-02-26Q19084090022.60 ppb
2019-02-26Q1908409004ND
2019-02-26Q190840901813.3 ppb
2019-02-26Q19084090194.69 ppb
2019-02-26Q1908409020ND
2019-02-26Q1908409021ND
2019-06-19Q1939089001ND
2019-06-19Q193908900922.8 ppb
2019-06-19Q19390890102.71 ppb
2019-06-19Q193908901114.4 ppb
2019-06-19Q1939089012ND
2019-09-03Q196186600112.2 ppb
2019-09-03Q196186600322.0 ppb
2019-09-03Q1961866004ND
2019-09-03Q1961866005ND
2019-09-03Q1961866006ND
2019-11-21Q197779200112.8 ppb
2019-11-21Q19777920022.18 ppb
2019-11-21Q197779200316.5 ppb
2019-11-21Q197779200412.0 ppb