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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Williamsport Mun Water Authority

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

 

192

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0813 ppb324ND - 0.970 ppb
2015ND320ND
20160.269 ppb3210ND - 1.34 ppb
20170.0828 ppb324ND - 0.780 ppb
2018ND320ND
2019ND320ND

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
2014-02-101071721001ND
2014-02-101071721003ND
2014-02-101071721004ND
2014-02-101071721005ND
2014-02-101071721006ND
2014-02-101071721007ND
2014-02-111071721008ND
2014-02-241073224001ND
2014-05-122006522001ND
2014-05-122006522002ND
2014-05-122006522003ND
2014-05-122006522004ND
2014-05-122006522005ND
2014-05-122006522006ND
2014-05-122006522007ND
2014-05-122006522008ND
2014-08-112023644001ND
2014-08-112023644002ND
2014-08-112023644003ND
2014-08-112023644004ND
2014-08-112023644005ND
2014-08-112023644006ND
2014-08-112023644007ND
2014-08-112023644008ND
2014-11-1020393970010.510 ppb
2014-11-102039397002ND
2014-11-1020393970030.970 ppb
2014-11-1020393970040.550 ppb
2014-11-102039397005ND
2014-11-102039397006ND
2014-11-1020393970070.570 ppb
2014-11-102039397008ND
2015-02-1612453592ND
2015-02-1612453598ND
2015-02-1612453604ND
2015-02-1612567909ND
2015-02-1612453611ND
2015-02-1612453617ND
2015-02-1612453623ND
2015-02-1612453629ND
2015-05-1112810107ND
2015-05-1112810113ND
2015-05-1112810119ND
2015-05-1112810125ND
2015-05-1112810131ND
2015-05-1112810137ND
2015-05-1112810143ND
2015-05-1112810149ND
2015-08-1013191953ND
2015-08-1013191959ND
2015-08-1013191965ND
2015-08-1013191971ND
2015-08-1013191977ND
2015-08-1013191983ND
2015-08-1013191989ND
2015-08-1013191995ND
2015-11-1613568219ND
2015-11-1613568225ND
2015-11-1613568231ND
2015-11-1613568237ND
2015-11-1613568243ND
2015-11-1613568249ND
2015-11-1613568255ND
2015-11-1613568261ND
2016-02-1513922997ND
2016-02-1513923003ND
2016-02-1513923009ND
2016-02-1513923015ND
2016-02-1513923021ND
2016-02-1513923027ND
2016-02-1513923033ND
2016-02-1513923039ND
2016-05-1614320668ND
2016-05-1614320687ND
2016-05-1614320692ND
2016-05-1614320674ND
2016-05-1614320698ND
2016-05-1614320662ND
2016-05-1614320704ND
2016-05-1614320680ND
2016-08-15148133080.860 ppb
2016-08-15148133121.08 ppb
2016-08-15148133131.27 ppb
2016-08-15148133141.34 ppb
2016-08-15148133100.920 ppb
2016-08-15148133090.870 ppb
2016-08-1514813307ND
2016-08-15148133111.000 ppb
2016-11-1415289635ND
2016-11-1415289641ND
2016-11-1415289647ND
2016-11-1415289653ND
2016-11-14152896590.320 ppb
2016-11-1415289665ND
2016-11-14152896710.660 ppb
2016-11-14152896770.300 ppb
2017-02-1315716074ND
2017-02-1315716080ND
2017-02-1315716086ND
2017-02-1315716092ND
2017-02-1315716098ND
2017-02-1315716104ND
2017-02-1315716110ND
2017-02-1315716116ND
2017-05-1516167317ND
2017-05-1516167323ND
2017-05-1516167329ND
2017-05-1516167335ND
2017-05-1516167341ND
2017-05-1516167347ND
2017-05-1516167353ND
2017-05-1516167359ND
2017-08-1416637232ND
2017-08-14166372380.780 ppb
2017-08-14166372440.610 ppb
2017-08-14166372500.740 ppb
2017-08-1416637256ND
2017-08-14166372620.520 ppb
2017-08-1416637268ND
2017-09-0816794517ND
2017-11-1317084481ND
2017-11-1317084484ND
2017-11-1317084490ND
2017-11-1317084497ND
2017-11-1317084502ND
2017-11-1317084507ND
2017-11-1317084514ND
2017-11-1317084520ND
2018-02-121803675-01ND
2018-02-121803675-02ND
2018-02-121803675-03ND
2018-02-121803675-04ND
2018-02-121803675-05ND
2018-02-121803675-06ND
2018-02-121803675-07ND
2018-02-121803675-08ND
2018-05-141811445-01ND
2018-05-141811445-02ND
2018-05-141811445-03ND
2018-05-141811445-04ND
2018-05-141811445-05ND
2018-05-141811445-06ND
2018-05-141811445-07ND
2018-05-141811445-08ND
2018-08-131821619-01ND
2018-08-131821619-02ND
2018-08-131821619-04ND
2018-08-131821619-05ND
2018-08-131821619-06ND
2018-08-131821619-07ND
2018-08-131821619-08ND
2018-08-201822594-01ND
2018-11-121829676-01ND
2018-11-121829676-02ND
2018-11-121829676-03ND
2018-11-121829676-04ND
2018-11-121829676-05ND
2018-11-121829676-06ND
2018-11-121829676-08ND
2018-11-301831143-01ND
2019-02-117079366001ND
2019-02-117079366003ND
2019-02-117079366005ND
2019-02-117079366007ND
2019-02-117079366009ND
2019-02-117079366011ND
2019-02-117079366013ND
2019-02-117079366015ND
2019-05-137090310001ND
2019-05-137090310002ND
2019-05-137090310003ND
2019-05-137090310004ND
2019-05-137090310005ND
2019-05-137090310006ND
2019-05-137090310007ND
2019-05-137090310008ND
2019-08-1270101010001ND
2019-08-1270101010003ND
2019-08-1270101010005ND
2019-08-1270101010007ND
2019-08-1270101010009ND
2019-08-1270101010011ND
2019-08-1270101010013ND
2019-08-1270101010015ND
2019-11-1170111648001ND
2019-11-1170111648002ND
2019-11-1170111648003ND
2019-11-1170111648004ND
2019-11-1170111648005ND
2019-11-1170111648006ND
2019-11-1170111648007ND
2019-11-1170111648008ND