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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Holbrook Public Works Department

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

 

160

Samples

0

Samples exceeding legal limit (MCL)

86

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
20150.669 ppb3222ND - 2.20 ppb
20160.881 ppb3228ND - 3.00 ppb
20170.838 ppb3228ND - 2.40 ppb
20180.281 ppb3210ND - 1.50 ppb
20190.138 ppb326ND - 0.900 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 Result
2015-02-19ND
2015-02-19ND
2015-02-19ND
2015-02-19ND
2015-02-19ND
2015-02-19ND
2015-02-19ND
2015-02-19ND
2015-05-28ND
2015-05-28ND
2015-05-280.600 ppb
2015-05-280.600 ppb
2015-05-280.600 ppb
2015-05-280.600 ppb
2015-05-280.700 ppb
2015-05-280.700 ppb
2015-08-111.000 ppb
2015-08-111.000 ppb
2015-08-111.000 ppb
2015-08-111.000 ppb
2015-08-111.20 ppb
2015-08-111.20 ppb
2015-08-112.20 ppb
2015-08-112.20 ppb
2015-11-050.700 ppb
2015-11-050.700 ppb
2015-11-050.700 ppb
2015-11-050.700 ppb
2015-11-050.700 ppb
2015-11-050.700 ppb
2015-11-051.30 ppb
2015-11-051.30 ppb
2016-02-170.600 ppb
2016-02-170.600 ppb
2016-02-17ND
2016-02-17ND
2016-02-17ND
2016-02-17ND
2016-02-170.600 ppb
2016-02-170.600 ppb
2016-05-040.600 ppb
2016-05-040.600 ppb
2016-05-040.800 ppb
2016-05-040.800 ppb
2016-05-040.800 ppb
2016-05-040.800 ppb
2016-05-040.700 ppb
2016-05-040.700 ppb
2016-08-101.20 ppb
2016-08-101.20 ppb
2016-08-101.30 ppb
2016-08-101.30 ppb
2016-08-101.40 ppb
2016-08-101.40 ppb
2016-08-103.00 ppb
2016-08-103.00 ppb
2016-11-160.600 ppb
2016-11-160.600 ppb
2016-11-160.700 ppb
2016-11-160.700 ppb
2016-11-160.700 ppb
2016-11-160.700 ppb
2016-11-161.10 ppb
2016-11-161.10 ppb
2017-02-150.600 ppb
2017-02-150.600 ppb
2017-02-150.700 ppb
2017-02-150.700 ppb
2017-02-150.700 ppb
2017-02-150.700 ppb
2017-02-150.700 ppb
2017-02-150.700 ppb
2017-05-15ND
2017-05-15ND
2017-05-150.700 ppb
2017-05-150.700 ppb
2017-05-150.500 ppb
2017-05-150.500 ppb
2017-05-150.600 ppb
2017-05-150.600 ppb
2017-08-220.900 ppb
2017-08-220.900 ppb
2017-08-221.80 ppb
2017-08-221.80 ppb
2017-08-221.30 ppb
2017-08-221.30 ppb
2017-08-222.40 ppb
2017-08-222.40 ppb
2017-11-21ND
2017-11-21ND
2017-11-210.900 ppb
2017-11-210.900 ppb
2017-11-210.500 ppb
2017-11-210.500 ppb
2017-11-211.10 ppb
2017-11-211.10 ppb
2018-02-14ND
2018-02-14ND
2018-02-14ND
2018-02-14ND
2018-02-14ND
2018-02-14ND
2018-02-14ND
2018-02-14ND
2018-05-09ND
2018-05-09ND
2018-05-09ND
2018-05-09ND
2018-05-09ND
2018-05-09ND
2018-05-09ND
2018-05-09ND
2018-08-080.500 ppb
2018-08-080.500 ppb
2018-08-081.10 ppb
2018-08-081.10 ppb
2018-08-080.900 ppb
2018-08-080.900 ppb
2018-08-081.50 ppb
2018-08-081.50 ppb
2018-11-07ND
2018-11-07ND
2018-11-07ND
2018-11-07ND
2018-11-07ND
2018-11-07ND
2018-11-070.500 ppb
2018-11-070.500 ppb
2019-02-20ND
2019-02-20ND
2019-02-20ND
2019-02-20ND
2019-02-20ND
2019-02-20ND
2019-02-20ND
2019-02-20ND
2019-05-22ND
2019-05-22ND
2019-05-22ND
2019-05-22ND
2019-05-22ND
2019-05-22ND
2019-05-22ND
2019-05-22ND
2019-08-19ND
2019-08-19ND
2019-08-19ND
2019-08-19ND
2019-08-260.900 ppb
2019-08-260.900 ppb
2019-08-260.700 ppb
2019-08-260.700 ppb
2019-11-13ND
2019-11-13ND
2019-11-130.600 ppb
2019-11-130.600 ppb
2019-11-13ND
2019-11-13ND
2019-11-13ND
2019-11-13ND