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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

City of Hays

Monobromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids 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

 

94

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.932 ppb1613ND - 2.10 ppb
20151.39 ppb16160.510 ppb - 3.10 ppb
20161.20 ppb16160.850 ppb - 1.70 ppb
20172.55 ppb14141.30 ppb - 4.40 ppb
20181.10 ppb1615ND - 3.00 ppb
20190.713 ppb1611ND - 1.70 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 25 ppb

The EWG Health Guideline of 25 ppb for monobromoacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.. This health guideline protects against muscular degeneration.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-06313630.650 ppb
2014-01-06313600.630 ppb
2014-01-06313560.650 ppb
2014-01-06313530.600 ppb
2014-04-211008992.10 ppb
2014-04-211008802.10 ppb
2014-04-211008450.720 ppb
2014-04-211008440.860 ppb
2014-07-07146865ND
2014-07-071468640.750 ppb
2014-07-071469020.650 ppb
2014-07-07146903ND
2014-10-132131802.10 ppb
2014-10-132131751.30 ppb
2014-10-13213167ND
2014-10-132131651.80 ppb
2015-01-052582053.10 ppb
2015-01-052582043.00 ppb
2015-01-052582033.10 ppb
2015-01-052582022.10 ppb
2015-06-013408200.910 ppb
2015-06-013408190.870 ppb
2015-06-013408210.830 ppb
2015-06-013408220.930 ppb
2015-07-133666850.710 ppb
2015-07-133666840.510 ppb
2015-07-133666831.30 ppb
2015-07-133666820.520 ppb
2015-10-124217311.20 ppb
2015-10-124217301.20 ppb
2015-10-124217291.000 ppb
2015-10-124217280.940 ppb
2016-01-114752310.850 ppb
2016-01-114752280.850 ppb
2016-01-114752290.890 ppb
2016-01-114752300.890 ppb
2016-04-045203171.10 ppb
2016-04-045203161.000 ppb
2016-04-045203150.920 ppb
2016-04-045203141.10 ppb
2016-07-125820181.30 ppb
2016-07-125820171.40 ppb
2016-07-125820161.50 ppb
2016-07-125820151.30 ppb
2016-10-036352141.50 ppb
2016-10-036352151.70 ppb
2016-10-036352131.30 ppb
2016-10-036352121.60 ppb
2017-01-096800132.60 ppb
2017-01-096800121.30 ppb
2017-01-096800113.70 ppb
2017-01-096800104.40 ppb
2017-04-117410262.50 ppb
2017-04-117410252.00 ppb
2017-04-117410242.60 ppb
2017-04-117410233.10 ppb
2017-07-177996432.50 ppb
2017-07-177996401.90 ppb
2017-07-177996411.70 ppb
2017-07-177996421.90 ppb
2017-10-028519642.70 ppb
2017-10-028519612.80 ppb
2018-01-169080371.40 ppb
2018-01-169080360.750 ppb
2018-01-169080350.800 ppb
2018-01-169080340.860 ppb
2018-04-169382702.20 ppb
2018-04-169382713.00 ppb
2018-04-169382732.40 ppb
2018-04-169382722.10 ppb
2018-08-2010294860.550 ppb
2018-08-201029485ND
2018-08-2010294840.750 ppb
2018-08-2010294830.590 ppb
2018-10-1510616030.520 ppb
2018-10-1510616020.620 ppb
2018-10-1510616010.560 ppb
2018-10-1510616000.550 ppb
2019-02-2511263970.630 ppb
2019-02-2511263960.670 ppb
2019-02-2511263980.510 ppb
2019-02-2511263990.630 ppb
2019-04-1511392141.10 ppb
2019-04-1511392131.40 ppb
2019-04-1511392121.50 ppb
2019-04-1511392111.20 ppb
2019-08-0512163041.70 ppb
2019-08-051216303ND
2019-08-051216302ND
2019-08-0512163011.40 ppb
2019-10-141259821ND
2019-10-1412598240.670 ppb
2019-10-141259823ND
2019-10-141259822ND