Know Your Environment. Protect Your Health.

Bromoform

City of Tacoma

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.

 

291

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND560ND
2019ND510ND
2020N/A00N/A
20210.0164 ppb591ND - 0.970 ppb
2022ND560ND
2023ND690ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform is based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer, harm to reproduction and child development, and change to fetal growth and development .

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-02ND
2018-01-02ND
2018-01-02ND
2018-01-02ND
2018-01-02ND
2018-01-02ND
2018-01-02ND
2018-01-02ND
2018-01-02ND
2018-01-02ND
2018-01-02ND
2018-01-03ND
2018-01-03ND
2018-01-03ND
2018-01-03ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-03ND
2018-04-03ND
2018-07-02ND
2018-07-02ND
2018-07-02ND
2018-07-02ND
2018-07-02ND
2018-07-02ND
2018-07-02ND
2018-07-03ND
2018-07-03ND
2018-07-03ND
2018-07-03ND
2018-07-03ND
2018-07-03ND
2018-07-03ND
2018-07-03ND
2018-10-30ND
2018-10-30ND
2018-10-30ND
2018-10-30ND
2018-10-30ND
2018-10-31ND
2018-10-31ND
2018-10-31ND
2018-10-31ND
2018-10-31ND
2018-10-31ND
2018-10-31ND
2019-01-02ND
2019-01-14ND
2019-01-14ND
2019-01-14ND
2019-01-14ND
2019-01-14ND
2019-01-14ND
2019-01-14ND
2019-01-14ND
2019-01-14ND
2019-01-14ND
2019-01-14ND
2019-01-15ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2019-04-03ND
2019-07-08ND
2019-07-08ND
2019-07-08ND
2019-07-08ND
2019-07-08ND
2019-07-08ND
2019-07-08ND
2019-07-08ND
2019-07-08ND
2019-07-08ND
2019-07-08ND
2019-07-08ND
2019-07-24ND
2019-10-01ND
2019-10-01ND
2019-10-01ND
2019-10-01ND
2019-10-02ND
2019-10-02ND
2019-10-02ND
2019-10-02ND
2019-10-02ND
2019-10-02ND
2019-10-02ND
2019-10-02ND
2019-12-03ND
2021-01-044061222ND
2021-01-044061224ND
2021-01-044061228ND
2021-01-044061226ND
2021-01-044061231ND
2021-01-044061227ND
2021-01-044061232ND
2021-01-044061230ND
2021-01-044061223ND
2021-01-044061229ND
2021-01-044061225ND
2021-01-054061233ND
2021-04-054099378ND
2021-04-054099386ND
2021-04-054099379ND
2021-04-054099388ND
2021-04-054099377ND
2021-04-054099387ND
2021-04-054099385ND
2021-04-054099382ND
2021-04-054099384ND
2021-04-054099381ND
2021-04-054099383ND
2021-04-064099380ND
2021-06-214137307ND
2021-06-214137308ND
2021-06-214137309ND
2021-06-214233773ND
2021-06-304142811ND
2021-07-064145168ND
2021-07-064145164ND
2021-07-064145158ND
2021-07-064145166ND
2021-07-0641451650.970 ppb
2021-07-064145163ND
2021-07-064145162ND
2021-07-064145159ND
2021-07-064145160ND
2021-07-074145175ND
2021-07-074145173ND
2021-07-074145170ND
2021-07-074145161ND
2021-07-074145172ND
2021-07-074145176ND
2021-10-044198457ND
2021-10-044198466ND
2021-10-044198436ND
2021-10-044198455ND
2021-10-044198463ND
2021-10-044198456ND
2021-10-044198442ND
2021-10-044198460ND
2021-10-044198437ND
2021-10-044198452ND
2021-10-054198447ND
2021-10-054198472ND
2021-10-054198478ND
2021-10-054198475ND
2021-10-054198469ND
2022-01-034227799ND
2022-01-034227787ND
2022-01-034227812ND
2022-01-034227806ND
2022-01-034227788ND
2022-01-034227808ND
2022-01-034227797ND
2022-01-034227804ND
2022-01-034227790ND
2022-01-034227794ND
2022-01-044227791ND
2022-01-044227815ND
2022-04-044271561ND
2022-04-044271568ND
2022-04-044271557ND
2022-04-044271543ND
2022-04-044271541ND
2022-04-044271546ND
2022-04-044271564ND
2022-04-044271554ND
2022-04-044271552ND
2022-04-044271549ND
2022-04-044271542ND
2022-04-044271565ND
2022-07-054322152ND
2022-07-054322151ND
2022-07-054322159ND
2022-07-054322156ND
2022-07-054322150ND
2022-07-054322158ND
2022-07-054322157ND
2022-07-054322155ND
2022-07-064322174ND
2022-07-064322161ND
2022-07-064322176ND
2022-07-064322154ND
2022-07-064322153ND
2022-07-064322175ND
2022-07-064322160ND
2022-09-154368469ND
2022-09-234368470ND
2022-10-034370616ND
2022-10-034370619ND
2022-10-034370617ND
2022-10-034370618ND
2022-10-034370620ND
2022-10-034370622ND
2022-10-034370613ND
2022-10-034370612ND
2022-10-034370621ND
2022-10-034370614ND
2022-10-044370615ND
2022-10-044370623ND
2022-10-114363364ND
2022-11-154428454ND
2022-11-164388597ND
2023-01-034415328ND
2023-01-034415326ND
2023-01-034415319ND
2023-01-034399213ND
2023-01-034399214ND
2023-01-034399216ND
2023-01-034415335ND
2023-01-034415329ND
2023-01-034399209ND
2023-01-034415323ND
2023-01-034415318ND
2023-01-034399212ND
2023-01-034399211ND
2023-01-034415334ND
2023-01-034415333ND
2023-01-034415320ND
2023-01-034399217ND
2023-01-034399210ND
2023-01-034399208ND
2023-01-034399215ND
2023-01-044415337ND
2023-01-044415336ND
2023-01-044399207ND
2023-01-044399205ND
2023-01-044399203ND
2023-01-044399204ND
2023-01-044399206ND
2023-04-054444240ND
2023-04-054444244ND
2023-04-054444242ND
2023-04-054444246ND
2023-04-054444249ND
2023-04-054444247ND
2023-04-054444245ND
2023-04-054444243ND
2023-04-054444239ND
2023-04-054444248ND
2023-04-054444241ND
2023-04-064444134ND
2023-04-064444140ND
2023-04-064444144ND
2023-04-064444128ND
2023-06-204542958ND
2023-07-104505937ND
2023-07-104505970ND
2023-07-104505973ND
2023-07-104505956ND
2023-07-104505942ND
2023-07-104505980ND
2023-07-104505963ND
2023-07-104505940ND
2023-07-104505983ND
2023-07-104505977ND
2023-07-104505966ND
2023-07-114505960ND
2023-07-124542960ND
2023-07-124542959ND
2023-10-024556395ND
2023-10-024556392ND
2023-10-024556391ND
2023-10-024556394ND
2023-10-024556397ND
2023-10-024556398ND
2023-10-024556396ND
2023-10-024556389ND
2023-10-024556393ND
2023-10-024556400ND
2023-10-024556390ND
2023-10-024556399ND