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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Florence

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

 

193

Samples

0

Samples exceeding legal limit (MCL)

26

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.960 ppb3214ND - 2.75 ppb
20151.70 ppb3210ND - 28.9 ppb
20160.322 ppb333ND - 8.20 ppb
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
2014-01-222140123-31ND
2014-01-222140123-32ND
2014-01-222140123-33ND
2014-01-222140123-34ND
2014-01-222140123-35ND
2014-01-222140123-36ND
2014-01-222140123-37ND
2014-01-222140123-38ND
2014-04-142140415-45ND
2014-04-142140415-46ND
2014-04-142140415-47ND
2014-04-142140415-48ND
2014-04-142140415-49ND
2014-04-142140415-50ND
2014-04-142140415-51ND
2014-04-142140415-52ND
2014-07-142140715-272.42 ppb
2014-07-142140715-282.23 ppb
2014-07-142140715-292.75 ppb
2014-07-142140715-302.26 ppb
2014-07-142140715-312.32 ppb
2014-07-142140715-32ND
2014-07-142140715-332.52 ppb
2014-07-142140715-342.39 ppb
2014-10-222141023-231.61 ppb
2014-10-222141023-241.82 ppb
2014-10-222141023-251.89 ppb
2014-10-222141023-262.00 ppb
2014-10-222141023-271.90 ppb
2014-10-222141023-28ND
2014-10-222141023-292.30 ppb
2014-10-222141023-302.30 ppb
2015-01-202150121-59ND
2015-01-202150121-60ND
2015-01-202150121-61ND
2015-01-202150121-62ND
2015-01-202150121-63ND
2015-01-202150121-64ND
2015-01-202150121-65ND
2015-01-202150121-66ND
2015-04-132150414-115.71 ppb
2015-04-132150414-1228.9 ppb
2015-04-132150414-13ND
2015-04-132150414-14ND
2015-04-132150414-150.410 ppb
2015-04-132150414-16ND
2015-04-132150414-17ND
2015-04-132150414-18ND
2015-07-202150721-114.15 ppb
2015-07-202150721-122.89 ppb
2015-07-202150721-132.28 ppb
2015-07-202150721-142.61 ppb
2015-07-202150721-153.29 ppb
2015-07-202150721-16ND
2015-07-202150721-171.91 ppb
2015-07-202150721-182.30 ppb
2015-10-122151013-31ND
2015-10-122151013-32ND
2015-10-122151013-33ND
2015-10-122151013-34ND
2015-10-122151013-35ND
2015-10-122151013-36ND
2015-10-122151013-37ND
2015-10-122151013-38ND
2016-01-112160112-11ND
2016-01-112160112-12ND
2016-01-112160112-13ND
2016-01-112160112-148.20 ppb
2016-01-112160112-15ND
2016-01-112160112-16ND
2016-01-112160112-18ND
2016-01-112160112-17ND
2016-04-182160419-29ND
2016-04-182160419-30ND
2016-04-182160419-31ND
2016-04-182160419-321.18 ppb
2016-04-182160419-331.25 ppb
2016-04-182160419-34ND
2016-04-182160419-36ND
2016-04-182160419-35ND
2016-07-182160719-11ND
2016-07-182160719-12ND
2016-07-182160719-13ND
2016-07-182160719-14ND
2016-07-182160719-15ND
2016-07-182160719-16ND
2016-07-182160719-18ND
2016-07-182160719-17ND
2016-09-232160923-14ND
2016-10-182161019-11ND
2016-10-182161019-12ND
2016-10-182161019-13ND
2016-10-182161019-14ND
2016-10-182161019-15ND
2016-10-182161019-16ND
2016-10-182161019-18ND
2016-10-182161019-17ND
2017-01-172170118-11ND
2017-01-172170118-12ND
2017-01-172170118-13ND
2017-01-172170118-14ND
2017-01-172170118-15ND
2017-01-172170118-16ND
2017-01-172170118-18ND
2017-01-172170118-17ND
2017-04-182170419-29ND
2017-04-182170419-30ND
2017-04-182170419-31ND
2017-04-182170419-32ND
2017-04-182170419-33ND
2017-04-182170419-34ND
2017-04-182170419-35ND
2017-04-182170419-36ND
2017-07-312170801-11ND
2017-07-312170801-12ND
2017-07-312170801-13ND
2017-07-312170801-14ND
2017-07-312170801-15ND
2017-07-312170801-16ND
2017-07-312170801-17ND
2017-07-312170801-18ND
2017-10-192171020-11ND
2017-10-192171020-12ND
2017-10-192171020-13ND
2017-10-192171020-14ND
2017-10-192171020-15ND
2017-10-192171020-16ND
2017-10-192171020-17ND
2017-10-192171020-18ND
2018-01-312180201-29ND
2018-01-312180201-30ND
2018-01-312180201-31ND
2018-01-312180201-32ND
2018-01-312180201-33ND
2018-01-312180201-34ND
2018-01-312180201-35ND
2018-01-312180201-36ND
2018-04-172180418-41ND
2018-04-172180418-42ND
2018-04-172180418-43ND
2018-04-172180418-44ND
2018-04-172180418-45ND
2018-04-172180418-46ND
2018-04-172180418-47ND
2018-04-172180418-48ND
2018-07-162180717-31ND
2018-07-162180717-32ND
2018-07-162180717-33ND
2018-07-162180717-34ND
2018-07-162180717-35ND
2018-07-162180717-36ND
2018-07-162180717-37ND
2018-07-162180717-38ND
2018-10-152181016-11ND
2018-10-152181016-12ND
2018-10-152181016-13ND
2018-10-152181016-14ND
2018-10-152181016-15ND
2018-10-152181016-16ND
2018-10-152181016-17ND
2018-10-152181016-18ND
2019-01-232190124-47ND
2019-01-232190124-48ND
2019-01-232190124-49ND
2019-01-232190124-50ND
2019-01-232190124-51ND
2019-01-232190124-52ND
2019-01-232190124-53ND
2019-01-232190124-54ND
2019-04-182190419-31ND
2019-04-182190419-32ND
2019-04-182190419-33ND
2019-04-182190419-34ND
2019-04-182190419-35ND
2019-04-182190419-36ND
2019-04-182190419-37ND
2019-04-182190419-38ND
2019-07-172190718-11ND
2019-07-172190718-12ND
2019-07-172190718-13ND
2019-07-172190718-14ND
2019-07-172190718-15ND
2019-07-172190718-16ND
2019-07-172190718-17ND
2019-07-172190718-18ND
2019-10-172191018-33ND
2019-10-172191018-34ND
2019-10-172191018-35ND
2019-10-172191018-36ND
2019-10-172191018-37ND
2019-10-172191018-38ND
2019-10-172191018-39ND
2019-10-172191018-40ND