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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of McKinney

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

 

186

Samples

0

Samples exceeding legal limit (MCL)

140

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20143.57 ppb27271.50 ppb - 16.0 ppb
20152.70 ppb3216ND - 6.10 ppb
20160.344 ppb328ND - 1.59 ppb
20173.04 ppb32321.96 ppb - 4.07 ppb
20181.69 ppb3226ND - 3.02 ppb
20191.94 ppb31311.06 ppb - 2.88 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
2014-02-11Q14040500011.90 ppb
2014-02-11Q14040500021.80 ppb
2014-02-11Q14040500031.91 ppb
2014-04-02Q14104660031.70 ppb
2014-04-02Q14104660041.50 ppb
2014-04-02Q14104660051.60 ppb
2014-04-02Q14104660062.90 ppb
2014-04-02Q14104660071.50 ppb
2014-04-02Q14104660081.80 ppb
2014-04-02Q14104660013.40 ppb
2014-04-02Q14104660021.70 ppb
2014-07-03Q14260330013.70 ppb
2014-07-03Q14260330023.60 ppb
2014-07-03Q14260330033.50 ppb
2014-07-03Q14260330044.10 ppb
2014-07-03Q14260330054.00 ppb
2014-07-03Q14260330064.10 ppb
2014-07-03Q14260330073.70 ppb
2014-07-03Q14260330083.70 ppb
2014-10-06Q14509290044.90 ppb
2014-10-06Q14509290054.30 ppb
2014-10-06Q14509290064.30 ppb
2014-10-06Q145092900716.0 ppb
2014-10-06Q14509290084.30 ppb
2014-10-06Q14509290093.20 ppb
2014-10-06Q14509290103.40 ppb
2014-10-06Q14509290113.80 ppb
2015-01-16Q15015400016.00 ppb
2015-01-16Q15015400025.70 ppb
2015-01-16Q15015400035.70 ppb
2015-01-16Q15015400045.50 ppb
2015-01-16Q15015400055.60 ppb
2015-01-16Q15015400066.00 ppb
2015-01-16Q15015400075.80 ppb
2015-01-16Q15015400086.10 ppb
2015-04-16Q15145640015.24 ppb
2015-04-16Q15145640025.02 ppb
2015-04-16Q15145640035.53 ppb
2015-04-16Q15145640044.60 ppb
2015-04-16Q15145640054.55 ppb
2015-04-16Q15145640064.98 ppb
2015-04-16Q15145640075.16 ppb
2015-04-16Q15145640084.86 ppb
2015-07-20Q1527977006ND
2015-07-20Q1527977007ND
2015-07-20Q1527977008ND
2015-07-20Q1527977001ND
2015-07-20Q1527977002ND
2015-07-20Q1527977003ND
2015-07-20Q1527977004ND
2015-07-20Q1527977005ND
2015-10-06Q1539460001ND
2015-10-06Q1539460002ND
2015-10-06Q1539460003ND
2015-10-06Q1539460004ND
2015-10-06Q1539460005ND
2015-10-06Q1539460006ND
2015-10-06Q1539460007ND
2015-10-06Q1539460008ND
2016-01-19Q1602635001ND
2016-01-19Q1602635002ND
2016-01-19Q1602635003ND
2016-01-19Q1602635004ND
2016-01-19Q1602635005ND
2016-01-19Q1602635006ND
2016-01-19Q1602635007ND
2016-01-19Q1602635008ND
2016-05-16Q16195900011.50 ppb
2016-05-16Q16195900021.30 ppb
2016-05-16Q16195900031.19 ppb
2016-05-16Q16195900041.08 ppb
2016-05-16Q16195900051.38 ppb
2016-05-16Q16195900061.46 ppb
2016-05-16Q16195900071.52 ppb
2016-05-16Q16195900081.59 ppb
2016-07-21Q1629773001ND
2016-07-21Q1629773002ND
2016-07-21Q1629773003ND
2016-07-21Q1629773004ND
2016-07-21Q1629773005ND
2016-07-21Q1629773006ND
2016-07-21Q1629773007ND
2016-07-21Q1629773008ND
2016-10-07Q1642773004ND
2016-10-07Q1642773005ND
2016-10-07Q1642773006ND
2016-10-07Q1642773007ND
2016-10-07Q1642773008ND
2016-10-07Q1642773009ND
2016-10-07Q1642773010ND
2016-10-07Q1642773011ND
2017-01-25Q17035480053.17 ppb
2017-01-25Q17035480013.10 ppb
2017-01-25Q17035480063.04 ppb
2017-01-25Q17035480023.20 ppb
2017-01-25Q17035480033.29 ppb
2017-01-25Q17035480073.11 ppb
2017-01-25Q17035480043.18 ppb
2017-01-25Q17035480083.04 ppb
2017-04-27Q17173570013.84 ppb
2017-04-27Q17173570023.97 ppb
2017-04-27Q17173570033.63 ppb
2017-04-27Q17173570044.07 ppb
2017-04-27Q17173570053.64 ppb
2017-04-27Q17173570063.81 ppb
2017-04-27Q17173570073.74 ppb
2017-04-27Q17173570083.70 ppb
2017-07-20Q17301030013.07 ppb
2017-07-20Q17301030053.18 ppb
2017-07-20Q17301030022.43 ppb
2017-07-20Q17301030062.83 ppb
2017-07-20Q17301030032.69 ppb
2017-07-20Q17301030072.72 ppb
2017-07-20Q17301030042.32 ppb
2017-07-20Q17301030082.81 ppb
2017-10-26Q17550440082.54 ppb
2017-10-26Q17550440032.75 ppb
2017-10-26Q17550440093.08 ppb
2017-10-26Q17550440042.40 ppb
2017-10-26Q17550440102.36 ppb
2017-10-26Q17550440051.96 ppb
2017-10-26Q17550440112.13 ppb
2017-10-26Q17550440062.46 ppb
2018-01-24Q18029430022.51 ppb
2018-01-24Q18029430032.50 ppb
2018-01-24Q18029430042.41 ppb
2018-01-24Q18029430052.62 ppb
2018-01-24Q18029430062.75 ppb
2018-01-24Q18029430073.02 ppb
2018-01-24Q18029430012.66 ppb
2018-01-25Q18029430082.67 ppb
2018-05-02Q18176860011.14 ppb
2018-05-02Q1817686005ND
2018-05-02Q18176860021.40 ppb
2018-05-02Q1817686006ND
2018-05-02Q1817686003ND
2018-05-02Q1817686008ND
2018-05-02Q1817686007ND
2018-05-02Q1817686004ND
2018-08-06Q18312980012.07 ppb
2018-08-06Q18312980022.31 ppb
2018-08-06Q18312980031.97 ppb
2018-08-06Q18312980041.85 ppb
2018-08-06Q18312980051.51 ppb
2018-08-06Q18312980061.68 ppb
2018-08-06Q18312980072.16 ppb
2018-08-06Q18312980082.23 ppb
2018-10-22Q18419720041.90 ppb
2018-10-22Q18419720051.90 ppb
2018-10-22Q18419720062.29 ppb
2018-10-22Q18419720071.44 ppb
2018-10-22Q18419720081.70 ppb
2018-10-22Q18419720091.65 ppb
2018-10-22Q18419720101.74 ppb
2018-10-22Q18419720112.07 ppb
2019-01-23Q19037040011.20 ppb
2019-01-23Q19037040051.13 ppb
2019-01-23Q19037040021.16 ppb
2019-01-23Q19037040061.10 ppb
2019-01-23Q19037040031.10 ppb
2019-01-23Q19037040071.10 ppb
2019-01-23Q19037040081.06 ppb
2019-01-23Q19037040041.14 ppb
2019-05-02Q19182950012.24 ppb
2019-05-02Q19182950022.02 ppb
2019-05-02Q19182950032.04 ppb
2019-05-02Q19182950072.38 ppb
2019-05-02Q19182950082.21 ppb
2019-06-12Q19364270012.33 ppb
2019-06-12Q19364270022.54 ppb
2019-08-12Q19541050022.11 ppb
2019-08-12Q19541050032.10 ppb
2019-08-12Q19541050041.99 ppb
2019-08-12Q19541050051.80 ppb
2019-08-12Q19541050062.21 ppb
2019-08-12Q19541050072.02 ppb
2019-08-12Q19541050082.02 ppb
2019-08-12Q19541050011.84 ppb
2019-10-28Q19743600042.63 ppb
2019-10-28Q19743600052.88 ppb
2019-10-28Q19743600062.79 ppb
2019-10-28Q19743600071.77 ppb
2019-10-28Q19743600081.92 ppb
2019-10-28Q19743600091.90 ppb
2019-10-28Q19743600102.67 ppb
2019-10-28Q19743600112.77 ppb