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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Wellborn SUD

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.

 

113

Samples

0

Samples exceeding legal limit (MCL)

94

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201212.9 ppb1211ND - 25.5 ppb
201310.3 ppb1915ND - 34.1 ppb
20142.48 ppb1811ND - 13.7 ppb
20159.90 ppb2420ND - 22.9 ppb
201610.8 ppb2017ND - 22.5 ppb
201712.9 ppb20203.10 ppb - 22.5 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
2012-06-18AB930723.80 ppb
2012-06-18AB930715.60 ppb
2012-06-18AB930784.10 ppb
2012-06-18AB9306823.7 ppb
2012-06-18AB9307424.1 ppb
2012-06-18AB9306925.5 ppb
2012-06-18AB9309313.0 ppb
2012-09-12AC008391.60 ppb
2012-11-15121157800112.2 ppb
2012-11-15121157800217.1 ppb
2012-11-15121157800324.5 ppb
2012-11-151211578004ND
2013-02-0613022280062.00 ppb
2013-02-06130222800719.2 ppb
2013-02-06130222800834.0 ppb
2013-02-061302228009ND
2013-06-12Q130218300734.1 ppb
2013-06-12Q130218300826.6 ppb
2013-06-12Q130218300919.6 ppb
2013-06-12Q13021830108.55 ppb
2013-09-23Q13078890055.95 ppb
2013-09-23Q130788900715.2 ppb
2013-09-23Q13078890085.26 ppb
2013-09-23Q13078890096.95 ppb
2013-09-23Q130788901012.5 ppb
2013-12-12Q1317624005ND
2013-12-12Q13176240061.24 ppb
2013-12-12Q13176240072.52 ppb
2013-12-12Q1317624008ND
2013-12-12Q1317624030ND
2013-12-12Q13176240222.71 ppb
2014-02-13AC428821.60 ppb
2014-02-13AC428795.30 ppb
2014-02-13AC428801.40 ppb
2014-02-13AC428831.80 ppb
2014-04-07AC494763.00 ppb
2014-04-07AC494745.50 ppb
2014-04-07AC49622ND
2014-04-07AC496033.60 ppb
2014-04-07AC49605ND
2014-04-07AC49602ND
2014-09-10AC665916.00 ppb
2014-09-10AC6652613.7 ppb
2014-09-10AC665181.40 ppb
2014-09-10AC665171.30 ppb
2014-12-16AC75090ND
2014-12-16AC75089ND
2014-12-16AC75075ND
2014-12-16AC75091ND
2015-03-24AC8586415.0 ppb
2015-03-24AC858744.30 ppb
2015-03-24AC858725.30 ppb
2015-03-24AC8588421.0 ppb
2015-03-24AC858626.10 ppb
2015-03-24AC8585020.1 ppb
2015-03-24AC8584417.2 ppb
2015-03-24AC8584521.0 ppb
2015-03-24AC8583818.4 ppb
2015-05-27AC93421ND
2015-05-27AC9347217.4 ppb
2015-05-27AC9348812.3 ppb
2015-05-27AC9348922.2 ppb
2015-06-18AC9657222.9 ppb
2015-09-30AD091283.60 ppb
2015-09-30AD090905.10 ppb
2015-09-30AD090915.30 ppb
2015-09-30AD090897.60 ppb
2015-09-30AD090935.00 ppb
2015-12-07AD15734ND
2015-12-07AD157052.20 ppb
2015-12-07AD157045.50 ppb
2015-12-07AD15697ND
2015-12-07AD15696ND
2016-03-09AD279354.10 ppb
2016-03-09AD27931ND
2016-03-09AD279377.90 ppb
2016-03-09AD279334.90 ppb
2016-03-09AD278619.20 ppb
2016-03-09AD278597.60 ppb
2016-03-09AD27863ND
2016-03-09AD27860ND
2016-06-14AD4039815.4 ppb
2016-06-14AD4039614.0 ppb
2016-06-14AD4041315.1 ppb
2016-06-14AD4040214.2 ppb
2016-09-30AD5216111.4 ppb
2016-09-30AD5216213.2 ppb
2016-09-30AD5215913.2 ppb
2016-09-30AD5216321.1 ppb
2016-12-08AD6138718.6 ppb
2016-12-08AD6138822.5 ppb
2016-12-08AD613838.90 ppb
2016-12-08AD6138915.2 ppb
2017-03-07AD7376214.0 ppb
2017-03-07AD7376411.0 ppb
2017-03-07AD7370112.4 ppb
2017-03-07AD7369913.8 ppb
2017-03-07AD7370212.4 ppb
2017-03-07AD7370013.1 ppb
2017-05-22AD850159.80 ppb
2017-05-22AD8501610.1 ppb
2017-05-22AD8502216.1 ppb
2017-05-22AD8501416.2 ppb
2017-09-19AD9676611.6 ppb
2017-09-19AD9676711.8 ppb
2017-09-19AD9676810.8 ppb
2017-09-19AD9676315.6 ppb
2017-11-21AE055663.10 ppb
2017-11-21AE055704.30 ppb
2017-11-21AE0554821.3 ppb
2017-11-21AE055506.80 ppb
2017-11-21AE0554921.0 ppb
2017-11-21AE0554722.5 ppb