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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Summerville

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

 

192

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND320ND
20150.260 ppb321ND - 8.33 ppb
2016ND320ND
2017ND320ND
2018ND320ND
2019ND320ND

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
2014-01-232140124-43ND
2014-01-232140124-44ND
2014-01-232140124-45ND
2014-01-232140124-46ND
2014-01-232140124-47ND
2014-01-232140124-48ND
2014-01-232140124-49ND
2014-01-232140124-50ND
2014-04-162140417-11ND
2014-04-162140417-12ND
2014-04-162140417-13ND
2014-04-162140417-14ND
2014-04-162140417-15ND
2014-04-162140417-16ND
2014-04-162140417-17ND
2014-04-162140417-18ND
2014-07-172140718-11ND
2014-07-172140718-12ND
2014-07-172140718-13ND
2014-07-172140718-14ND
2014-07-172140718-15ND
2014-07-172140718-16ND
2014-07-172140718-17ND
2014-07-172140718-18ND
2014-10-232141024-11ND
2014-10-232141024-12ND
2014-10-232141024-13ND
2014-10-232141024-14ND
2014-10-232141024-15ND
2014-10-232141024-16ND
2014-10-232141024-17ND
2014-10-232141024-18ND
2015-01-212150122-57ND
2015-01-212150122-58ND
2015-01-212150122-59ND
2015-01-212150122-60ND
2015-01-212150122-61ND
2015-01-212150122-62ND
2015-01-212150122-63ND
2015-01-212150122-64ND
2015-04-162150417-11ND
2015-04-162150417-12ND
2015-04-162150417-13ND
2015-04-162150417-14ND
2015-04-162150417-15ND
2015-04-162150417-16ND
2015-04-162150417-17ND
2015-04-162150417-188.33 ppb
2015-07-212150722-11ND
2015-07-212150722-12ND
2015-07-212150722-13ND
2015-07-212150722-14ND
2015-07-212150722-15ND
2015-07-212150722-16ND
2015-07-212150722-17ND
2015-07-212150722-18ND
2015-10-222151023-11ND
2015-10-222151023-12ND
2015-10-222151023-13ND
2015-10-222151023-14ND
2015-10-222151023-15ND
2015-10-222151023-16ND
2015-10-222151023-17ND
2015-10-222151023-18ND
2016-01-202160121-39ND
2016-01-202160121-40ND
2016-01-202160121-41ND
2016-01-202160121-42ND
2016-01-202160121-43ND
2016-01-202160121-44ND
2016-01-202160121-45ND
2016-01-202160121-46ND
2016-04-202160421-33ND
2016-04-202160421-34ND
2016-04-202160421-35ND
2016-04-202160421-36ND
2016-04-202160421-37ND
2016-04-202160421-38ND
2016-04-202160421-39ND
2016-04-202160421-40ND
2016-07-192160721-81ND
2016-07-192160721-82ND
2016-07-192160721-83ND
2016-07-192160721-84ND
2016-07-192160721-85ND
2016-07-192160721-86ND
2016-07-192160721-87ND
2016-07-192160721-88ND
2016-10-212161025-11ND
2016-10-212161025-12ND
2016-10-212161025-13ND
2016-10-212161025-14ND
2016-10-212161025-15ND
2016-10-212161025-16ND
2016-10-212161025-17ND
2016-10-212161025-18ND
2017-01-272170131-11ND
2017-01-272170131-12ND
2017-01-272170131-13ND
2017-01-272170131-14ND
2017-01-272170131-15ND
2017-01-272170131-16ND
2017-01-272170131-17ND
2017-01-272170131-18ND
2017-04-192170420-11ND
2017-04-192170420-12ND
2017-04-192170420-13ND
2017-04-192170420-14ND
2017-04-192170420-15ND
2017-04-192170420-16ND
2017-04-192170420-17ND
2017-04-192170420-18ND
2017-07-172170720-33ND
2017-07-172170720-34ND
2017-07-172170720-35ND
2017-07-172170720-36ND
2017-07-172170720-37ND
2017-07-172170720-38ND
2017-07-172170720-39ND
2017-07-192170720-40ND
2017-10-192171020-29ND
2017-10-192171020-30ND
2017-10-192171020-31ND
2017-10-192171020-32ND
2017-10-192171020-33ND
2017-10-192171020-34ND
2017-10-192171020-35ND
2017-10-192171020-36ND
2018-01-162180118-30ND
2018-01-162180118-31ND
2018-01-162180118-32ND
2018-01-162180118-33ND
2018-01-162180118-34ND
2018-01-162180118-35ND
2018-01-162180118-36ND
2018-01-162180118-37ND
2018-04-182180420-11ND
2018-04-182180420-12ND
2018-04-182180420-13ND
2018-04-182180420-14ND
2018-04-182180420-15ND
2018-04-182180420-16ND
2018-04-182180420-17ND
2018-04-182180420-18ND
2018-07-192180720-33ND
2018-07-192180720-34ND
2018-07-192180720-35ND
2018-07-192180720-36ND
2018-07-192180720-37ND
2018-07-192180720-38ND
2018-07-192180720-39ND
2018-07-192180720-40ND
2018-10-152181017-23ND
2018-10-152181017-24ND
2018-10-152181017-25ND
2018-10-152181017-26ND
2018-10-152181017-27ND
2018-10-152181017-28ND
2018-10-152181017-29ND
2018-10-152181017-30ND
2019-01-222190123-23ND
2019-01-222190123-24ND
2019-01-222190123-25ND
2019-01-222190123-26ND
2019-01-222190123-27ND
2019-01-222190123-28ND
2019-01-222190123-29ND
2019-01-222190123-30ND
2019-04-182190419-73ND
2019-04-182190419-74ND
2019-04-182190419-75ND
2019-04-182190419-76ND
2019-04-182190419-77ND
2019-04-182190419-78ND
2019-04-182190419-79ND
2019-04-182190419-80ND
2019-07-152190716-17ND
2019-07-152190716-18ND
2019-07-152190716-19ND
2019-07-152190716-20ND
2019-07-152190716-21ND
2019-07-152190716-22ND
2019-07-152190716-23ND
2019-07-152190716-24ND
2019-10-142191015-23ND
2019-10-142191015-24ND
2019-10-142191015-25ND
2019-10-142191015-26ND
2019-10-142191015-27ND
2019-10-142191015-28ND
2019-10-142191015-29ND
2019-10-142191015-30ND