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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

City of Haysville

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

 

97

Samples

0

Samples exceeding legal limit (MCL)

82

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20143.00 ppb1614ND - 7.50 ppb
20152.16 ppb1612ND - 5.60 ppb
20162.71 ppb1612ND - 7.30 ppb
20173.10 ppb1713ND - 9.80 ppb
20183.58 ppb1615ND - 8.00 ppb
20192.50 ppb16160.770 ppb - 5.00 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
2014-03-11766481.02 ppb
2014-03-11766472.15 ppb
2014-03-11766460.695 ppb
2014-03-11766452.95 ppb
2014-06-101268875.10 ppb
2014-06-101268866.80 ppb
2014-06-101268521.000 ppb
2014-06-101268514.40 ppb
2014-09-09191462ND
2014-09-091914607.50 ppb
2014-09-091914683.90 ppb
2014-09-091914705.80 ppb
2014-12-082439391.30 ppb
2014-12-082439382.50 ppb
2014-12-08243937ND
2014-12-082439362.90 ppb
2015-03-162967541.50 ppb
2015-03-162967531.60 ppb
2015-03-16296752ND
2015-03-162967513.30 ppb
2015-06-15349017ND
2015-06-153490183.30 ppb
2015-06-153490205.60 ppb
2015-06-153490193.20 ppb
2015-09-14405796ND
2015-09-144057954.00 ppb
2015-09-144057944.80 ppb
2015-09-144057933.60 ppb
2015-12-14461218ND
2015-12-144612171.20 ppb
2015-12-144612160.950 ppb
2015-12-144612151.50 ppb
2016-03-075067933.60 ppb
2016-03-075067922.40 ppb
2016-03-075067941.90 ppb
2016-03-07506795ND
2016-06-065592942.20 ppb
2016-06-065592931.20 ppb
2016-06-065592922.40 ppb
2016-06-06559291ND
2016-09-126215045.80 ppb
2016-09-126215036.20 ppb
2016-09-126215027.30 ppb
2016-09-12621501ND
2016-12-066685414.30 ppb
2016-12-066685402.80 ppb
2016-12-066685393.30 ppb
2016-12-06668538ND
2017-03-137232832.90 ppb
2017-03-137232822.00 ppb
2017-03-137232813.00 ppb
2017-03-13723280ND
2017-06-127766894.80 ppb
2017-06-127766883.10 ppb
2017-06-127766879.40 ppb
2017-06-12776686ND
2017-09-188423443.60 ppb
2017-09-188423450.530 ppb
2017-09-188423469.80 ppb
2017-09-188423473.30 ppb
2017-10-23865406_PACEND
2017-12-118916872.20 ppb
2017-12-118916864.30 ppb
2017-12-11891685ND
2017-12-118916843.80 ppb
2018-03-129361744.00 ppb
2018-03-12936173ND
2018-03-129361721.50 ppb
2018-03-129361716.70 ppb
2018-06-119867040.710 ppb
2018-06-119867054.60 ppb
2018-06-119867071.30 ppb
2018-06-119867065.60 ppb
2018-09-1710446301.10 ppb
2018-09-1710446297.20 ppb
2018-09-1710446287.40 ppb
2018-09-1710446270.900 ppb
2018-12-1010891621.10 ppb
2018-12-1010891618.00 ppb
2018-12-1010891601.40 ppb
2018-12-1010891595.80 ppb
2019-03-1811392974.70 ppb
2019-03-1811392960.790 ppb
2019-03-1811392980.980 ppb
2019-03-1811392993.70 ppb
2019-06-1011845260.900 ppb
2019-06-1011845250.770 ppb
2019-06-1011845242.70 ppb
2019-06-1011845234.70 ppb
2019-09-1712430154.60 ppb
2019-09-1712430141.10 ppb
2019-09-1712430134.50 ppb
2019-09-1712430120.780 ppb
2019-12-0212815752.60 ppb
2019-12-0212815791.000 ppb
2019-12-0212815781.20 ppb
2019-12-0212815765.00 ppb