Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromoform

Chickasha Municipal Authority

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

 

101

Samples

0

Samples exceeding legal limit (MCL)

56

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.22 ppb2019ND - 3.80 ppb
20150.806 ppb167ND - 2.30 ppb
20161.02 ppb1611ND - 2.28 ppb
20170.503 ppb179ND - 1.13 ppb
20180.436 ppb164ND - 1.85 ppb
20190.511 ppb167ND - 1.29 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
2014-01-07038082.0011.40 ppb
2014-01-07038082.0031.50 ppb
2014-01-07038082.0051.80 ppb
2014-01-07038082.0071.30 ppb
2014-03-12040330.0011.70 ppb
2014-03-12040330.0031.90 ppb
2014-03-12040330.0052.30 ppb
2014-03-12040330.0071.60 ppb
2014-06-26043585.0012.80 ppb
2014-06-26043585.0033.20 ppb
2014-06-26043585.0053.80 ppb
2014-06-26043585.0073.10 ppb
2014-09-24047470.0012.90 ppb
2014-09-25047470.0033.10 ppb
2014-09-25047470.0053.00 ppb
2014-09-25047470.0072.30 ppb
2014-12-03051033.0011.80 ppb
2014-12-03051033.003ND
2014-12-03051033.0052.90 ppb
2014-12-03051033.0072.00 ppb
2015-03-03053908.0012.30 ppb
2015-03-03053908.003ND
2015-03-03053908.0051.80 ppb
2015-03-03053908.0072.00 ppb
2015-06-03057021.0011.80 ppb
2015-06-03057021.0031.20 ppb
2015-06-03057021.0052.10 ppb
2015-06-03057021.0071.70 ppb
2015-09-161427968ND
2015-09-161427970ND
2015-09-161427972ND
2015-09-161427974ND
2015-12-161452284ND
2015-12-161452286ND
2015-12-161452288ND
2015-12-161452290ND
2016-03-231476908ND
2016-03-231476910ND
2016-03-231476911ND
2016-03-2314769121.28 ppb
2016-06-2215016762.28 ppb
2016-06-221501678ND
2016-06-2215016802.13 ppb
2016-06-2215016821.46 ppb
2016-09-2115265971.89 ppb
2016-09-211526599ND
2016-09-2115266011.78 ppb
2016-09-2115266032.13 ppb
2016-12-0815471031.11 ppb
2016-12-0815471040.400 ppb
2016-12-0815471050.940 ppb
2016-12-0815471060.910 ppb
2017-03-2215738750.970 ppb
2017-03-2215738780.870 ppb
2017-03-2215738800.960 ppb
2017-03-2215738821.13 ppb
2017-04-191581145ND
2017-06-1415964660.740 ppb
2017-06-141596468ND
2017-06-1415964700.840 ppb
2017-06-1415964720.960 ppb
2017-10-2616336351.05 ppb
2017-10-261633637ND
2017-10-261633638ND
2017-10-2616336391.03 ppb
2017-12-121645940ND
2017-12-121645955ND
2017-12-121645956ND
2017-12-121645957ND
2018-03-21AC21086-01ND
2018-03-21AC21086-02ND
2018-03-21AC21086-03ND
2018-03-21AC21086-04ND
2018-06-27AF27157-01ND
2018-06-27AF27157-02ND
2018-06-27AF27157-03ND
2018-06-27AF27157-04ND
2018-09-26AI26153-011.78 ppb
2018-09-26AI26153-021.69 ppb
2018-09-26AI26153-031.85 ppb
2018-09-26AI26153-041.66 ppb
2018-12-18AL19042-01ND
2018-12-18AL19042-02ND
2018-12-18AL19042-03ND
2018-12-18AL19042-04ND
2019-03-27BC27039-011.13 ppb
2019-03-27BC27039-021.11 ppb
2019-03-27BC27039-031.11 ppb
2019-03-27BC27039-041.15 ppb
2019-06-26BF26127-01ND
2019-06-26BF26127-02ND
2019-06-26BF26127-03ND
2019-06-26BF26127-04ND
2019-09-25BI25057-011.29 ppb
2019-09-25BI25057-02ND
2019-09-25BI25057-031.19 ppb
2019-09-25BI25057-041.20 ppb
2019-12-17BL18047-01ND
2019-12-17BL18047-02ND
2019-12-17BL18047-03ND
2019-12-17BL18047-04ND