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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Piqua City PWS

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

 

110

Samples

0

Samples exceeding legal limit (MCL)

39

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.123 ppb204ND - 0.650 ppb
20152.73 ppb205ND - 52.4 ppb
20160.222 ppb205ND - 1.10 ppb
20170.855 ppb2013ND - 2.70 ppb
20180.409 ppb188ND - 1.11 ppb
20190.361 ppb124ND - 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
2014-03-10031014016ND
2014-03-10031014017ND
2014-03-10031014018ND
2014-03-10031014019ND
2014-03-10031014020ND
2014-06-09060914046ND
2014-06-09060914047ND
2014-06-09060914048ND
2014-06-09060914049ND
2014-06-09060914050ND
2014-09-090909140100.610 ppb
2014-09-090909140110.590 ppb
2014-09-090909140120.650 ppb
2014-09-090909140130.600 ppb
2014-09-09090914014ND
2014-12-09120914037ND
2014-12-09120914038ND
2014-12-09120914039ND
2014-12-09120914040ND
2014-12-09120914041ND
2015-03-09030915019ND
2015-03-09030915020ND
2015-03-09030915021ND
2015-03-09030915022ND
2015-03-09030915023ND
2015-06-0806081503052.4 ppb
2015-06-08060815031ND
2015-06-08060815032ND
2015-06-08060815033ND
2015-06-08060815034ND
2015-09-080908150210.530 ppb
2015-09-080908150220.530 ppb
2015-09-080908150230.560 ppb
2015-09-080908150240.560 ppb
2015-09-08090815025ND
2015-12-08120815009ND
2015-12-08120815010ND
2015-12-08120815011ND
2015-12-08120815012ND
2015-12-08120815013ND
2016-03-09030916015ND
2016-03-09030916017ND
2016-03-09030916019ND
2016-03-09030916021ND
2016-03-09030916023ND
2016-06-090609160150.540 ppb
2016-06-09060916016ND
2016-06-09060916017ND
2016-06-09060916018ND
2016-06-09060916019ND
2016-09-090909160280.890 ppb
2016-09-090909160290.810 ppb
2016-09-090909160301.09 ppb
2016-09-090909160311.10 ppb
2016-09-09090916032ND
2016-12-12121216031ND
2016-12-12121216032ND
2016-12-12121216033ND
2016-12-12121216034ND
2016-12-12121216035ND
2017-03-09030917032ND
2017-03-09030917033ND
2017-03-09030917034ND
2017-03-09030917035ND
2017-03-09030917036ND
2017-06-090609170090.930 ppb
2017-06-090609170101.12 ppb
2017-06-090609170111.18 ppb
2017-06-090609170121.56 ppb
2017-06-090609170130.960 ppb
2017-09-2817-28763-051.60 ppb
2017-09-2817-28763-011.70 ppb
2017-09-2817-28763-021.70 ppb
2017-09-2817-28763-031.70 ppb
2017-09-2817-28763-042.70 ppb
2017-12-11121117010ND
2017-12-111211170110.560 ppb
2017-12-111211170120.590 ppb
2017-12-111211170130.790 ppb
2017-12-11121117014ND
2018-03-0918C0665-01ND
2018-03-0918C0665-02ND
2018-03-0918C0665-03ND
2018-03-0918C0665-04ND
2018-06-0818F0631-010.990 ppb
2018-06-0818F0631-021.11 ppb
2018-06-0818F0631-031.07 ppb
2018-06-0818F0631-04ND
2018-06-1418F1012-010.900 ppb
2018-09-1018I0497-010.760 ppb
2018-09-1018I0497-021.02 ppb
2018-09-1018I0497-030.810 ppb
2018-09-1018I0497-040.710 ppb
2018-12-10523315001ND
2018-12-10523315002ND
2018-12-10523315003ND
2018-12-10523315004ND
2018-12-10523315005ND
2019-03-11528885001ND
2019-03-11528885002ND
2019-03-11528885003ND
2019-03-11528885004ND
2019-06-115215835001ND
2019-06-115215835002ND
2019-06-115215835003ND
2019-06-115215835004ND
2019-09-0952226640011.10 ppb
2019-09-0952226640021.30 ppb
2019-09-0952226640031.30 ppb
2019-09-0952226640040.630 ppb