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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Spencer Municipal Water Utility

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

 

92

Samples

0

Samples exceeding legal limit (MCL)

89

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.98 ppb12121.000 ppb - 2.50 ppb
20151.72 ppb16160.600 ppb - 2.60 ppb
20161.14 ppb16160.600 ppb - 1.70 ppb
20171.26 ppb1615ND - 2.00 ppb
20181.49 ppb1615ND - 2.60 ppb
20191.10 ppb1615ND - 2.00 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
2014-04-0920459682.50 ppb
2014-04-0920459661.000 ppb
2014-04-0920459601.30 ppb
2014-04-0920459592.40 ppb
2014-07-0220637742.40 ppb
2014-07-0220637732.50 ppb
2014-07-0220637752.40 ppb
2014-07-0220637761.30 ppb
2014-10-0620850951.90 ppb
2014-10-0620850942.20 ppb
2014-10-0620850922.50 ppb
2014-10-0620850931.30 ppb
2015-01-15OE2104391.80 ppb
2015-01-15OE2104401.20 ppb
2015-01-15OE2104382.60 ppb
2015-01-15OE2104411.30 ppb
2015-04-06OE2287711.60 ppb
2015-04-06OE2287721.20 ppb
2015-04-06OE2287741.50 ppb
2015-04-06OE2287731.80 ppb
2015-07-06OE2646872.20 ppb
2015-07-06OE2646862.50 ppb
2015-07-06OE2646851.20 ppb
2015-07-06OE2646842.30 ppb
2015-10-05OE3030961.10 ppb
2015-10-05OE3030972.10 ppb
2015-10-05OE3030950.600 ppb
2015-10-05OE3030942.50 ppb
2016-01-11OE3349940.900 ppb
2016-01-11OE3349950.600 ppb
2016-01-11OE3349960.800 ppb
2016-01-11OE3349971.30 ppb
2016-04-05OE3631310.900 ppb
2016-04-05OE3631320.700 ppb
2016-04-05OE3631331.10 ppb
2016-04-06OE3631341.10 ppb
2016-07-13OE4012111.40 ppb
2016-07-13OE4012041.20 ppb
2016-07-13OE4012090.800 ppb
2016-07-13OE4012101.30 ppb
2016-10-03OE4369691.20 ppb
2016-10-03OE4369681.60 ppb
2016-10-03OE4369711.60 ppb
2016-10-03OE4369701.70 ppb
2017-01-09OE4701061.20 ppb
2017-01-09OE4701041.20 ppb
2017-01-09OE4701071.50 ppb
2017-01-09OE470105ND
2017-04-10OE5009821.10 ppb
2017-04-10OE5009831.20 ppb
2017-04-10OE5009841.30 ppb
2017-04-12OE5015360.800 ppb
2017-07-12OE5363791.10 ppb
2017-07-12OE5363781.80 ppb
2017-07-12OE5363811.20 ppb
2017-07-12OE5363801.30 ppb
2017-10-02OE5736711.40 ppb
2017-10-02OE5736732.00 ppb
2017-10-02OE5736721.10 ppb
2017-10-02OE5736701.90 ppb
2018-01-03OE6074742.60 ppb
2018-01-03OE6074732.10 ppb
2018-01-03OE6074721.30 ppb
2018-01-03OE6074712.40 ppb
2018-04-05OE6434542.30 ppb
2018-04-05OE6434511.40 ppb
2018-04-05OE6434521.000 ppb
2018-04-05OE6434531.30 ppb
2018-07-09OE6817691.60 ppb
2018-07-09OE6817681.20 ppb
2018-07-09OE6817670.800 ppb
2018-07-09OE6817661.70 ppb
2018-10-09OE7261411.40 ppb
2018-10-09OE726142ND
2018-10-09OE7261431.40 ppb
2018-10-09OE7261441.30 ppb
2019-01-07OE7582471.000 ppb
2019-01-07OE7582480.700 ppb
2019-01-07OE7582491.000 ppb
2019-01-07OE7582501.50 ppb
2019-04-08OE7918051.30 ppb
2019-04-08OE7918081.20 ppb
2019-04-08OE7918071.10 ppb
2019-04-08OE7918060.800 ppb
2019-07-08OE8324291.40 ppb
2019-07-08OE8324320.600 ppb
2019-07-08OE8324300.900 ppb
2019-07-16OE8361951.30 ppb
2019-10-01OE8739012.00 ppb
2019-10-01OE873900ND
2019-10-01OE8738991.000 ppb
2019-10-01OE8738981.80 ppb