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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Lockport WD#3

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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)

80

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20149.64 ppb16167.57 ppb - 12.4 ppb
20158.15 ppb886.78 ppb - 9.35 ppb
20169.98 ppb20206.94 ppb - 15.2 ppb
201711.0 ppb12126.94 ppb - 19.2 ppb
201811.3 ppb16167.98 ppb - 14.9 ppb
20199.70 ppb886.78 ppb - 13.4 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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 LR9.68 ppb
2014-02-041ST QTR DBP14 LR8.82 ppb
2014-02-04FIRST QTR DBP LR7.97 ppb
2014-02-041ST QTR DBP14 LR9.93 ppb
2014-05-08DBP9 TLCKPT 2Q207.57 ppb
2014-05-08DBP9 TLCKPT 2Q207.83 ppb
2014-05-08DBP9 TLCKPT 2Q208.60 ppb
2014-05-08DBP9 TLCKPT 2Q207.69 ppb
2014-08-07DBP9 TLCKPT 3Q2010.6 ppb
2014-08-07DBP9 TLCKPT 3Q2010.3 ppb
2014-09-03DBP9 TLCKPT 3Q2010.3 ppb
2014-09-03DBP9 TLCKPT 3Q209.11 ppb
2014-11-07DBP9 TLCKPT 4Q2011.0 ppb
2014-11-07DBP9 TLCKPT 4Q2010.5 ppb
2014-11-07DBP9 TLCKPT 4Q2012.4 ppb
2014-11-07DBP9 TLCKPT 4Q2012.0 ppb
2015-02-04DBP9 TLCKPT 1Q208.75 ppb
2015-02-04DBP9 TLCKPT 1Q208.65 ppb
2015-02-04DBP9 TLCKPT 1Q206.78 ppb
2015-02-04DBP9 TLCKPT 1Q207.27 ppb
2015-05-05DBP9 TLCKPT 2Q207.90 ppb
2015-05-05DBP9 TLCKPT 2Q209.35 ppb
2015-05-05DBP9 TLCKPT 2Q207.55 ppb
2015-05-05DBP9 TLCKPT 2Q208.92 ppb
2016-02-03DBP9 TLCKPT 1Q2010.9 ppb
2016-02-03DBP9 TLCKPT 1Q208.97 ppb
2016-02-03DBP9 TLCKPT 1Q208.29 ppb
2016-02-03DBP9 TLCKPT 1Q207.16 ppb
2016-02-07DBP9 TLCKPT 1Q209.74 ppb
2016-02-07DBP9 TLCKPT 1Q207.21 ppb
2016-02-07DBP9 TLCKPT 1Q208.08 ppb
2016-02-07DBP9 TLCKPT 1Q206.94 ppb
2016-05-05DBP9 TLCKPT 2Q208.01 ppb
2016-05-05DBP9 TLCKPT 2Q209.42 ppb
2016-05-05DBP9 TLCKPT 2Q208.55 ppb
2016-05-05DBP9 TLCKPT 2Q209.68 ppb
2016-08-09DBP9 TLCKPT 3Q2015.2 ppb
2016-08-09DBP9 TLCKPT 3Q2011.9 ppb
2016-08-09DBP9 TLCKPT 3Q2012.8 ppb
2016-08-09DBP9 TLCKPT 3Q2012.7 ppb
2016-11-07DBP9 TLCKPT 4Q2010.7 ppb
2016-11-07DBP9 TLCKPT 4Q209.00 ppb
2016-11-07DBP9 TLCKPT 4Q209.81 ppb
2016-11-07DBP9 TLCKPT 4Q2014.6 ppb
2017-02-07DBP9 TLCKPT 1Q209.74 ppb
2017-02-07DBP9 TLCKPT 1Q208.08 ppb
2017-02-07DBP9 TLCKPT 1Q206.94 ppb
2017-02-07DBP9 TLCKPT 1Q207.21 ppb
2017-05-05DBP9 TLCKPT 2Q209.18 ppb
2017-05-05DBP9 TLCKPT 2Q208.95 ppb
2017-05-05DBP9 TLCKPT 2Q2010.3 ppb
2017-05-05DBP9 TLCKPT 2Q209.31 ppb
2017-08-08DBP9 TLCKPT 3Q2014.1 ppb
2017-08-08DBP9 TLCKPT 3Q2015.0 ppb
2017-08-08DBP9 TLCKPT 3Q2019.2 ppb
2017-08-08DBP9 TLCKPT 3Q2014.0 ppb
2018-02-06DBP9 TLCKPT 1Q208.45 ppb
2018-02-06DBP9 TLCKPT 1Q207.98 ppb
2018-02-06DBP9 TLCKPT 1Q208.88 ppb
2018-02-06DBP9 TLCKPT 1Q2012.1 ppb
2018-05-09DBP9 TLCKPT 2Q208.97 ppb
2018-05-09DBP9 TLCKPT 2Q209.82 ppb
2018-05-09DBP9 TLCKPT 2Q209.14 ppb
2018-05-09DBP9 TLCKPT 2Q2012.2 ppb
2018-08-09DBP9 TLCKPT 3Q2012.7 ppb
2018-08-09DBP9 TLCKPT 3Q2014.9 ppb
2018-08-09DBP9 TLCKPT 3Q2014.2 ppb
2018-08-09DBP9 TLCKPT 3Q2014.0 ppb
2018-11-05DBP9 TLCKPT 4Q2011.7 ppb
2018-11-05DBP9 TLCKPT 4Q2014.8 ppb
2018-11-05DBP9 TLCKPT 4Q2011.4 ppb
2018-11-05DBP9 TLCKPT 4Q2010.4 ppb
2019-02-04DBP9 TLCKPT 1Q209.09 ppb
2019-02-04DBP9 TLCKPT 1Q209.38 ppb
2019-02-04DBP9 TLCKPT 1Q206.78 ppb
2019-02-04DBP9 TLCKPT 1Q2011.0 ppb
2019-05-07DBP9 TLCKPT 2Q2010.00 ppb
2019-05-07DBP9 TLCKPT 2Q208.64 ppb
2019-05-07DBP9 TLCKPT 2Q2013.4 ppb
2019-05-07DBP9 TLCKPT 2Q209.22 ppb