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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Lockport WD#3

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

 

80

Samples

0

Samples exceeding legal limit (MCL)

22

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0956 ppb162ND - 1.03 ppb
20150.491 ppb83ND - 1.32 ppb
20160.369 ppb206ND - 1.75 ppb
20170.268 ppb122ND - 1.76 ppb
20180.751 ppb169ND - 1.43 ppb
20190.175 ppb81ND - 1.40 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
2014-02-041ST QTR DBP14 LRND
2014-02-041ST QTR DBP14 LRND
2014-02-04FIRST QTR DBP LRND
2014-02-041ST QTR DBP14 LRND
2014-05-08DBP9 TLCKPT 2Q20ND
2014-05-08DBP9 TLCKPT 2Q20ND
2014-05-08DBP9 TLCKPT 2Q20ND
2014-05-08DBP9 TLCKPT 2Q20ND
2014-08-07DBP9 TLCKPT 3Q20ND
2014-08-07DBP9 TLCKPT 3Q200.500 ppb
2014-09-03DBP9 TLCKPT 3Q20ND
2014-09-03DBP9 TLCKPT 3Q20ND
2014-11-07DBP9 TLCKPT 4Q20ND
2014-11-07DBP9 TLCKPT 4Q20ND
2014-11-07DBP9 TLCKPT 4Q20ND
2014-11-07DBP9 TLCKPT 4Q201.03 ppb
2015-02-04DBP9 TLCKPT 1Q20ND
2015-02-04DBP9 TLCKPT 1Q20ND
2015-02-04DBP9 TLCKPT 1Q20ND
2015-02-04DBP9 TLCKPT 1Q20ND
2015-05-05DBP9 TLCKPT 2Q201.32 ppb
2015-05-05DBP9 TLCKPT 2Q20ND
2015-05-05DBP9 TLCKPT 2Q201.31 ppb
2015-05-05DBP9 TLCKPT 2Q201.30 ppb
2016-02-03DBP9 TLCKPT 1Q20ND
2016-02-03DBP9 TLCKPT 1Q20ND
2016-02-03DBP9 TLCKPT 1Q20ND
2016-02-03DBP9 TLCKPT 1Q20ND
2016-02-07DBP9 TLCKPT 1Q20ND
2016-02-07DBP9 TLCKPT 1Q20ND
2016-02-07DBP9 TLCKPT 1Q20ND
2016-02-07DBP9 TLCKPT 1Q20ND
2016-05-05DBP9 TLCKPT 2Q20ND
2016-05-05DBP9 TLCKPT 2Q201.75 ppb
2016-05-05DBP9 TLCKPT 2Q20ND
2016-05-05DBP9 TLCKPT 2Q20ND
2016-08-09DBP9 TLCKPT 3Q20ND
2016-08-09DBP9 TLCKPT 3Q201.07 ppb
2016-08-09DBP9 TLCKPT 3Q201.13 ppb
2016-08-09DBP9 TLCKPT 3Q201.11 ppb
2016-11-07DBP9 TLCKPT 4Q20ND
2016-11-07DBP9 TLCKPT 4Q201.12 ppb
2016-11-07DBP9 TLCKPT 4Q201.19 ppb
2016-11-07DBP9 TLCKPT 4Q20ND
2017-02-07DBP9 TLCKPT 1Q20ND
2017-02-07DBP9 TLCKPT 1Q20ND
2017-02-07DBP9 TLCKPT 1Q20ND
2017-02-07DBP9 TLCKPT 1Q20ND
2017-05-05DBP9 TLCKPT 2Q20ND
2017-05-05DBP9 TLCKPT 2Q20ND
2017-05-05DBP9 TLCKPT 2Q20ND
2017-05-05DBP9 TLCKPT 2Q20ND
2017-08-08DBP9 TLCKPT 3Q201.76 ppb
2017-08-08DBP9 TLCKPT 3Q20ND
2017-08-08DBP9 TLCKPT 3Q201.46 ppb
2017-08-08DBP9 TLCKPT 3Q20ND
2018-02-06DBP9 TLCKPT 1Q20ND
2018-02-06DBP9 TLCKPT 1Q20ND
2018-02-06DBP9 TLCKPT 1Q20ND
2018-02-06DBP9 TLCKPT 1Q20ND
2018-05-09DBP9 TLCKPT 2Q20ND
2018-05-09DBP9 TLCKPT 2Q201.22 ppb
2018-05-09DBP9 TLCKPT 2Q20ND
2018-05-09DBP9 TLCKPT 2Q20ND
2018-08-09DBP9 TLCKPT 3Q201.34 ppb
2018-08-09DBP9 TLCKPT 3Q201.23 ppb
2018-08-09DBP9 TLCKPT 3Q201.36 ppb
2018-08-09DBP9 TLCKPT 3Q201.43 ppb
2018-11-05DBP9 TLCKPT 4Q201.29 ppb
2018-11-05DBP9 TLCKPT 4Q201.39 ppb
2018-11-05DBP9 TLCKPT 4Q201.41 ppb
2018-11-05DBP9 TLCKPT 4Q201.35 ppb
2019-02-04DBP9 TLCKPT 1Q20ND
2019-02-04DBP9 TLCKPT 1Q201.40 ppb
2019-02-04DBP9 TLCKPT 1Q20ND
2019-02-04DBP9 TLCKPT 1Q20ND
2019-05-07DBP9 TLCKPT 2Q20ND
2019-05-07DBP9 TLCKPT 2Q20ND
2019-05-07DBP9 TLCKPT 2Q20ND
2019-05-07DBP9 TLCKPT 2Q20ND