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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Franklin Water Utility

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

 

97

Samples

0

Samples exceeding legal limit (MCL)

95

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.00 ppb1716ND - 1.70 ppb
20151.25 ppb16160.750 ppb - 1.80 ppb
20161.10 ppb16160.690 ppb - 1.60 ppb
20170.926 ppb16160.470 ppb - 1.30 ppb
20181.09 ppb16160.620 ppb - 1.50 ppb
20191.02 ppb16160.850 ppb - 1.30 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
2014-01-217671990.950 ppb
2014-01-217672000.950 ppb
2014-01-217671981.10 ppb
2014-01-217672011.10 ppb
2014-03-12774408ND
2014-04-167808490.570 ppb
2014-04-167808470.620 ppb
2014-04-167808500.620 ppb
2014-04-167808480.750 ppb
2014-07-168035240.970 ppb
2014-07-168035271.70 ppb
2014-07-168035261.60 ppb
2014-07-168035251.40 ppb
2014-10-158259091.000 ppb
2014-10-158259111.40 ppb
2014-10-158259101.20 ppb
2014-10-158259121.10 ppb
2015-01-148391251.000 ppb
2015-01-148391231.10 ppb
2015-01-148391221.000 ppb
2015-01-148391240.870 ppb
2015-04-158545360.970 ppb
2015-04-158545350.750 ppb
2015-04-158545330.910 ppb
2015-04-158545340.920 ppb
2015-07-148709141.30 ppb
2015-07-148709151.30 ppb
2015-07-148709161.60 ppb
2015-07-148709131.60 ppb
2015-10-138887861.80 ppb
2015-10-138887831.80 ppb
2015-10-138887851.60 ppb
2015-10-138887841.40 ppb
2016-01-219023560.690 ppb
2016-01-219023570.700 ppb
2016-01-219023550.770 ppb
2016-01-219023580.840 ppb
2016-04-209168760.850 ppb
2016-04-209168750.890 ppb
2016-04-209168740.900 ppb
2016-04-209168770.930 ppb
2016-07-129327641.60 ppb
2016-07-129327661.60 ppb
2016-07-129327631.50 ppb
2016-07-129327651.30 ppb
2016-10-129530801.30 ppb
2016-10-129530821.30 ppb
2016-10-129530791.20 ppb
2016-10-129530811.20 ppb
2017-01-189704970.770 ppb
2017-01-189704960.860 ppb
2017-01-189704950.940 ppb
2017-01-189704981.000 ppb
2017-04-199842310.960 ppb
2017-04-199842301.10 ppb
2017-04-199842291.20 ppb
2017-04-199842321.30 ppb
2017-07-1810047750.590 ppb
2017-07-1810047770.700 ppb
2017-07-1810047740.520 ppb
2017-07-1810047760.470 ppb
2017-10-1710246821.000 ppb
2017-10-1710246811.10 ppb
2017-10-1710246831.10 ppb
2017-10-1710246841.20 ppb
2018-01-1810380430.620 ppb
2018-01-1810380450.640 ppb
2018-01-1810380440.690 ppb
2018-01-1810380420.700 ppb
2018-04-2310518101.10 ppb
2018-04-2310518091.000 ppb
2018-04-2310518110.930 ppb
2018-04-2310518121.10 ppb
2018-07-1910685871.20 ppb
2018-07-1910685881.30 ppb
2018-07-1910685861.40 ppb
2018-07-1910685891.50 ppb
2018-10-1110867931.20 ppb
2018-10-1110867911.30 ppb
2018-10-1110867921.30 ppb
2018-10-1110867941.40 ppb
2019-01-1411010061.10 ppb
2019-01-1411010091.10 ppb
2019-01-1411010070.950 ppb
2019-01-1411010080.930 ppb
2019-04-1611155980.850 ppb
2019-04-1611155950.850 ppb
2019-04-1611155970.960 ppb
2019-04-1611155960.990 ppb
2019-07-1811356310.910 ppb
2019-07-1811356331.000 ppb
2019-07-1811356321.000 ppb
2019-07-1811356341.20 ppb
2019-10-1711559410.930 ppb
2019-10-1711559391.10 ppb
2019-10-1711559401.20 ppb
2019-10-1711559421.30 ppb