EWG's Tap Water Database — 2021 UPDATE



Town of Luke / Newpage Luke Mill

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.





Samples exceeding legal limit (MCL)


Samples exceeding
health guidelines

Testing results - average by year

YearAverage resultSamples takenDetectionsRange of results
20143.50 ppb113.50 ppb
201530.9 ppb1130.9 ppb
201614.5 ppb552.84 ppb - 30.5 ppb
20172.95 ppb551.30 ppb - 5.39 ppb
20180.950 ppb110.950 ppb
20195.65 ppb115.65 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
2014-04-080010019_01_044763.50 ppb
2015-09-22E1600123500130.9 ppb
2016-02-176B18102-0315.1 ppb
2016-05-176E19098-0310.6 ppb
2016-06-07E160046480012.84 ppb
2016-08-096H11149-0313.5 ppb
2016-11-156K17172-0330.5 ppb
2017-02-227B23124-032.97 ppb
2017-04-26E170042610035.39 ppb
2017-05-177E18045-031.30 ppb
2017-08-237H24112-031.53 ppb
2017-11-157K16199-033.58 ppb
2018-04-24E180038050010.950 ppb
2019-07-02E200000370105.65 ppb