Bromoform

Citizens Water - Indianapolis

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

204

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	0.186 ppb	36	9	ND - 1.20 ppb
2015	0.174 ppb	38	9	ND - 1.10 ppb
2016	0.166 ppb	32	7	ND - 1.10 ppb
2017	0.158 ppb	24	5	ND - 1.20 ppb
2018	0.185 ppb	33	8	ND - 1.70 ppb
2019	0.139 ppb	41	8	ND - 1.20 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
2014-01-13	666917RV-1401	ND
2014-02-12	670853RV-1401	ND
2014-02-12	670855RV-1401	ND
2014-02-12	670857RV-1401	ND
2014-02-12	670859RV-1401	ND
2014-02-12	670869RV-1401	1.20 ppb
2014-02-12	670872RV-1401	0.600 ppb
2014-02-12	670874RV-1401	0.500 ppb
2014-03-10	674196RV-1401	ND
2014-04-14	678702RV-1402	ND
2014-05-14	683180RV-1402	ND
2014-05-14	683182RV-1402	ND
2014-05-14	683184RV-1402	ND
2014-05-14	683186RV-1402	ND
2014-05-14	683190RV-1402	0.700 ppb
2014-05-14	683192RV-1402	0.700 ppb
2014-05-14	683194RV-1402	0.800 ppb
2014-06-09	686658RV-1402	ND
2014-07-14	391920RV-1403	ND
2014-08-13	696760RV-1403	ND
2014-08-13	696762RV-1403	ND
2014-08-13	696764RV-1403	ND
2014-08-13	696766RV-1403	ND
2014-08-13	696768RV-1403	ND
2014-08-13	696770RV-1403	0.800 ppb
2014-08-13	696772RV-1403	0.600 ppb
2014-08-13	696774RV-1403	ND
2014-09-08	700055RV-1403	ND
2014-10-13	705191RS525-1404	ND
2014-11-12	710016RV-1404	ND
2014-11-12	710018RV-1404	ND
2014-11-12	710020RV-1404	ND
2014-11-12	710022RV-1404	ND
2014-11-12	710026RV-1404	ND
2014-11-12	710028RV-1404	0.800 ppb
2014-11-12	710030RV-1404	ND
2015-01-02	716880RV-1501	ND
2015-02-11	722640RV-1501	ND
2015-02-11	722642RV-1501	ND
2015-02-11	722644RV-1501	ND
2015-02-11	722648RV-1501	ND
2015-02-11	722650RV-1501	1.000 ppb
2015-02-11	722652RV-1501	0.700 ppb
2015-03-16	727115RV-1501	ND
2015-04-13	730812RV-1502	ND
2015-05-13	150006501RV-1502	ND
2015-05-13	150006502RV-1502	ND
2015-05-13	150006503RV-1502	ND
2015-05-13	150006504RV-1502	ND
2015-05-13	150006505RV-1502	ND
2015-05-13	150006506RV-1502	0.700 ppb
2015-05-13	150006507RV-1502	0.600 ppb
2015-05-20	150006509RV-1502	0.600 ppb
2015-06-26	150006508RV-1502	ND
2015-07-13	3279376RV-1503	ND
2015-08-11	150054610RV-1503	ND
2015-08-12	150054601RV-1503	ND
2015-08-12	150054602RV-1503	ND
2015-08-12	150054603RV-1503	ND
2015-08-12	150054604RV-1503	ND
2015-08-12	150054605RV-1503	ND
2015-08-12	150054606RV-1503	ND
2015-08-12	150054607RV-1503	0.600 ppb
2015-08-12	150054608RV-1503	ND
2015-10-12	3343611RV-1504	ND
2015-11-09	150100702RV-1504	ND
2015-11-09	150100704RV-1504	ND
2015-11-09	150100706RV-1504	ND
2015-11-09	150100708RV-1504	ND
2015-11-10	150102308RV-1504	ND
2015-11-11	150102910RV-1504	ND
2015-11-11	150102911RV-1504	1.10 ppb
2015-11-11	150102912RV-1504	0.600 ppb
2015-11-11	150102913RV-1504	0.700 ppb
2016-04-11	16049904RV-1602	ND
2016-05-10	16066622RV-1602	ND
2016-05-11	16067007RV-1602	ND
2016-05-11	16067014RV-1602	ND
2016-05-11	16067021RV-1602	ND
2016-05-11	16067026RV-1602	ND
2016-05-11	16067302RV-1602	0.900 ppb
2016-05-11	16067304RV-1602	0.800 ppb
2016-06-08	16083902RV-1602	ND
2016-06-13	16085904RV-1602	ND
2016-07-15	16105012RV-1603	ND
2016-08-09	3518937RV-1603	0.700 ppb
2016-08-09	3518939RV-1603	ND
2016-08-09	3518941RV-1603	ND
2016-08-09	3518943RV-1603	ND
2016-08-10	3518983RV-1603	ND
2016-08-10	3518985RV-1603	0.600 ppb
2016-08-10	3518987RV-1603	ND
2016-08-10	3518989RV-1603	ND
2016-08-10	3518991RV-1603	ND
2016-09-12	16140004RV-1603	ND
2016-10-10	16157204RV-1604	ND
2016-11-07	16174602RV-1604	ND
2016-11-07	16174604RV-1604	ND
2016-11-07	16174606RV-1604	ND
2016-11-07	16174608RV-1604	ND
2016-11-08	16175822RV-1604	ND
2016-11-09	16176504RV-1604	0.700 ppb
2016-11-09	16176506RV-1604	0.500 ppb
2016-11-09	16176508RV-1604	ND
2016-11-09	16176510RV-1604	1.10 ppb
2016-12-12	16191704RV-1604	ND
2017-01-09	17003404RV-1701	ND
2017-02-08	17020607RV-1701	ND
2017-02-08	17020801RV-1701	ND
2017-02-08	17020803RV-1701	ND
2017-02-08	17020805RV-1701	ND
2017-02-08	17020807RV-1701	ND
2017-02-08	17020809RV-1701	0.600 ppb
2017-02-08	17020811RV-1701	1.20 ppb
2017-02-08	17020813RV-1701	0.900 ppb
2017-03-13	17038904RV-1701	ND
2017-04-10	17053704RV-1702	ND
2017-07-10	17105104RV-1703	ND
2017-08-15	17130610RV-1703	ND
2017-08-16	17130601RV-1703	ND
2017-08-16	17130604RV-1703	ND
2017-08-16	17130605RV-1703	ND
2017-08-16	17130606RV-1703	0.600 ppb
2017-08-16	17130607RV-1703	0.500 ppb
2017-08-16	17130608RV-1703	ND
2017-08-28	17137004RV-1703	ND
2017-08-28	17137006	ND
2017-09-11	171457004ARV-170	ND
2017-10-09	17163604RV-1704	ND
2017-12-11	2017121084RV-170	ND
2018-05-15	18071704RV-1802	ND
2018-05-16	18072601RV-1802	ND
2018-05-16	18072602RV-1802	ND
2018-05-16	18072603RV-1802	ND
2018-05-16	18072604RV-1802	ND
2018-05-16	18072605RV-1802	1.70 ppb
2018-05-16	18072606RV-1802	0.800 ppb
2018-05-16	18072607RV-1802	0.500 ppb
2018-06-11	18086904RV-1802	ND
2018-07-23	18112704RV-1803	ND
2018-08-14	18127710	ND
2018-08-15	18128101RV-1803	ND
2018-08-15	18128102RV-1803	ND
2018-08-15	18128103	0.600 ppb
2018-08-15	18128104	ND
2018-08-15	18128105	ND
2018-08-15	18128106	0.600 ppb
2018-08-15	18128107	ND
2018-08-15	18128108	0.500 ppb
2018-08-21	18131407	0.500 ppb
2018-08-23	18133201	ND
2018-09-10	18142904	ND
2018-10-08	18162004	ND
2018-11-12	18182702	ND
2018-11-12	18182704	ND
2018-11-12	18182706	ND
2018-11-12	18182708	ND
2018-11-13	18184322	ND
2018-11-14	18184904	0.900 ppb
2018-11-14	18184906	ND
2018-11-14	18184908	ND
2018-11-14	18184909	ND
2018-12-10	18197204RV-1804	ND
2019-01-14	19007304	ND
2019-01-14	19007304	ND
2019-02-11	19023902	ND
2019-02-11	19023904	ND
2019-02-11	19023906	ND
2019-02-11	19023908	ND
2019-02-12	19025222	ND
2019-03-08	19041801	ND
2019-03-08	19041803	1.20 ppb
2019-03-08	19041805	0.800 ppb
2019-03-11	19042404	ND
2019-04-08	19063204RV-1902	ND
2019-05-15	19092601	ND
2019-05-15	19092602	ND
2019-05-15	19092603	ND
2019-05-15	19092604	ND
2019-05-15	19092605	ND
2019-05-15	19092606	0.700 ppb
2019-05-15	19092607	ND
2019-05-15	19092612	ND
2019-06-10	19113104RV-1902	ND
2019-08-12	19166902	0.500 ppb
2019-08-12	19166904	ND
2019-08-12	19166906	ND
2019-08-12	19166908	ND
2019-08-13	19168425	ND
2019-08-14	19169002	ND
2019-08-14	19169004	0.700 ppb
2019-08-14	19169006	ND
2019-08-14	19169103	ND
2019-09-09	19189204RV-1903	ND
2019-10-14	19216604	ND
2019-11-11	19237602	ND
2019-11-11	19237604	ND
2019-11-11	19237608	ND
2019-11-12	19239125	ND
2019-11-13	19239702	ND
2019-11-13	19239704	0.800 ppb
2019-11-13	19239706	0.500 ppb
2019-11-13	19239708	0.500 ppb
2019-12-09	19254604	ND