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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Town of Tonawanda Water Department

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

 

107

Samples

0

Samples exceeding legal limit (MCL)

35

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.490 ppb2813ND - 5.00 ppb
20150.628 ppb167ND - 1.63 ppb
20160.570 ppb165ND - 2.02 ppb
20170.287 ppb143ND - 1.45 ppb
20180.394 ppb174ND - 2.27 ppb
20190.198 ppb163ND - 1.10 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
2014-01-08140109216 DBP 1SND
2014-01-08140109213 DBP 1SND
2014-01-08140109212 DBP 1SND
2014-01-08140109218 DBP 1SND
2014-01-0814109217 DBP 1STND
2014-01-08140109214 DBP 1SND
2014-01-08140109215 DBP 1SND
2014-01-08140109211 DBP1STND
2014-04-11DBP 2ND Q 14 STAND
2014-04-112ND Q 14STAGE2DBND
2014-04-11STAGE 2 DBP 2NDQND
2014-04-11LRAA7 2ND Q 14 D0.560 ppb
2014-04-11DBP 2ND Q 14 STAND
2014-04-11STAGE 2DBP 2ND Q5.00 ppb
2014-04-11LRAA8 2ND Q 14 DND
2014-04-11DBP2ND Q 14 STAGND
2014-07-09S4G11068 3RD Q 10.590 ppb
2014-07-09S4G11062 3RD Q 10.650 ppb
2014-07-09S4G11064 3RD Q 10.550 ppb
2014-07-09S4G11066 3RD Q 10.660 ppb
2014-07-09S4G11067 3RD Q 10.630 ppb
2014-07-09S4G11065 3RD Q 10.600 ppb
2014-07-09S4G1106 3RD Q 140.540 ppb
2014-07-09S4G11063 3RD Q 10.630 ppb
2014-10-084 Q 14 DBP SIT END
2014-10-084 Q 14 DBP SITE1.07 ppb
2014-10-084 Q 2014 DBP SIT1.14 ppb
2014-10-084 Q 14 DBP SITE1.09 ppb
2015-01-07107152 1ST Q 15ND
2015-01-07010715 1 DBP 1STND
2015-01-070107154 1ST Q 15ND
2015-01-070107152 1ST Q 15ND
2015-04-084/8/15-21.25 ppb
2015-04-084/8/15-3ND
2015-04-084/8/15-11.27 ppb
2015-04-084/8/15-41.20 ppb
2015-07-08070815 -11.56 ppb
2015-07-0807/08/15 -21.63 ppb
2015-07-0807/08/15 -41.53 ppb
2015-07-0807/08/15 -31.60 ppb
2015-10-092 4TH Q 15 DBPSND
2015-10-094TH Q 2015 DBPSND
2015-10-093 4TH Q 2015 DBPND
2015-10-094 15 4TH Q DBPSND
2016-01-050105162 DBPND
2016-01-0515161 DBP 16ND
2016-01-050105163 DBPND
2016-01-050105164 DBPND
2016-04-0504/05/2016-2660ND
2016-04-0504/05/2016-2974ND
2016-04-0504/05/2016-84ND
2016-04-0504/05/2016-4264ND
2016-07-0507/05/2016-26602.02 ppb
2016-07-0507/05/2016-42642.02 ppb
2016-07-0507/05/2016-84ND
2016-07-0507/05/2016-29741.99 ppb
2016-10-0410/04/2016-03ND
2016-10-0410/04/2016-011.50 ppb
2016-10-0410/04/2016-041.59 ppb
2016-10-0410/04/2016-02ND
2017-01-0301/03/2017-04ND
2017-01-0301/03/2017-03ND
2017-01-0301/03/2017-01ND
2017-01-0301/03/2017-02ND
2017-04-040417821ND
2017-04-040420179181.23 ppb
2017-04-040420171001ND
2017-04-040420140943ND
2017-07-0575201711121.34 ppb
2017-07-0575201711131.45 ppb
2017-10-03TOT OCT 2017 DBPND
2017-10-03TOTOCT 2017 DBPND
2017-10-03TOT OCT2017 1ND
2017-10-03TOT OCT 2017 DBPND
2018-01-0910918 84 HAWTHORND
2018-01-090109181 1ST Q DBND
2018-01-0910918 4264 DELAWND
2018-01-0910918 DBP9 2660ND
2018-01-0910918 2974 COLVIND
2018-04-034318 2660 NFB DBND
2018-04-034318 84 HAWTHORNND
2018-04-034318 2974 COLVIN1.04 ppb
2018-04-034318 4264 DELAWAND
2018-07-033RD Q 2018 DBP 82.19 ppb
2018-07-03DBP 3RD Q 18 2662.27 ppb
2018-07-03DBP 3RD Q 18 426ND
2018-07-03DBP 3RD Q 18 297ND
2018-10-09TONA 4 DBP 4TH QND
2018-10-09TONA 2 DBP 4TH QND
2018-10-09TONA 1 DBP 4TH Q1.19 ppb
2018-10-09TONA 3 DBP 4TH QND
2019-01-074264 DELND
2019-01-072660 NIAFALLBLVDND
2019-01-0784 HAWND
2019-01-102974 COLND
2019-04-094264 DELAWAREND
2019-04-092974 COLVINND
2019-04-0984 HAWTHORNEND
2019-04-092660 NFBLVDND
2019-07-092660 NIA FALL 3QND
2019-07-0984 HAWTHORNE 3QTND
2019-07-092974 COLVIN 3RDND
2019-07-094264 DELAWARE 3QND
2019-10-0884 HAW 4QTR1.04 ppb
2019-10-082660 NIA FALLS 41.03 ppb
2019-10-084264 DEL 4QTRND
2019-10-082974 COLVIN 4QTR1.10 ppb