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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of League City

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

 

226

Samples

0

Samples exceeding legal limit (MCL)

22

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.808 ppb365ND - 25.0 ppb
20150.480 ppb413ND - 17.0 ppb
20160.256 ppb363ND - 5.00 ppb
20170.853 ppb366ND - 16.0 ppb
20180.143 ppb372ND - 3.60 ppb
20190.295 ppb403ND - 4.70 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
2014-03-04AC45484ND
2014-03-04AC45453ND
2014-03-04AC45483ND
2014-03-04AC45454ND
2014-03-04AC45485ND
2014-03-04AC45481ND
2014-03-04AC45482ND
2014-03-04AC45492ND
2014-04-30AC52479ND
2014-04-30AC52474ND
2014-04-30AC52477ND
2014-04-30AC52495ND
2014-04-30AC52496ND
2014-04-30AC52476ND
2014-04-30AC52475ND
2014-04-30AC52478ND
2014-04-30AC52356ND
2014-04-30AC52354ND
2014-08-19AC64396ND
2014-08-19AC64388ND
2014-08-19AC64392ND
2014-08-19AC64424ND
2014-08-19AC64391ND
2014-08-19AC64431ND
2014-08-19AC64427ND
2014-08-19AC64449ND
2014-08-19AC6431825.0 ppb
2014-11-17AC72179ND
2014-11-17AC72119ND
2014-11-17AC721181.20 ppb
2014-11-17AC72114ND
2014-11-17AC72112ND
2014-11-17AC72115ND
2014-11-17AC721451.10 ppb
2014-11-17AC721171.10 ppb
2014-12-15AC751220.700 ppb
2015-01-29AC78501ND
2015-01-29AC78507ND
2015-01-29AC78471ND
2015-01-29AC78410ND
2015-01-29AC78424ND
2015-01-29AC78409ND
2015-01-29AC78411ND
2015-01-29AC78412ND
2015-01-29AC78413ND
2015-01-29AC784291.10 ppb
2015-03-30AC8653917.0 ppb
2015-03-30AC86557ND
2015-06-16AC96202ND
2015-06-16AC96204ND
2015-06-16AC96165ND
2015-06-16AC96168ND
2015-06-16AC96158ND
2015-06-16AC96164ND
2015-06-16AC96147ND
2015-06-16AC96157ND
2015-06-16AC96160ND
2015-06-16AC96156ND
2015-06-16AC96198ND
2015-08-05AD02635ND
2015-08-05AD02594ND
2015-08-05AD02595ND
2015-08-05AD02598ND
2015-08-05AD02584ND
2015-08-05AD02583ND
2015-08-05AD02586ND
2015-08-05AD02580ND
2015-08-05AD025881.60 ppb
2015-10-21AD11338ND
2015-10-21AD11295ND
2015-10-21AD11296ND
2015-10-21AD11290ND
2015-10-21AD11297ND
2015-10-21AD11298ND
2015-10-21AD11292ND
2015-10-21AD11294ND
2015-10-21AD11287ND
2016-01-28AD20760ND
2016-01-28AD20754ND
2016-01-28AD207585.00 ppb
2016-01-28AD20756ND
2016-01-28AD20675ND
2016-01-28AD20678ND
2016-01-28AD20677ND
2016-01-28AD20681ND
2016-01-28AD20674ND
2016-01-28AD20668ND
2016-01-28AD20680ND
2016-01-28AD206761.40 ppb
2016-06-13AD40180ND
2016-06-13AD40182ND
2016-06-13AD40199ND
2016-06-13AD40201ND
2016-06-13AD40200ND
2016-06-13AD40179ND
2016-06-13AD40202ND
2016-06-13AD40178ND
2016-08-02AD46609ND
2016-08-02AD46630ND
2016-08-02AD46629ND
2016-08-02AD46626ND
2016-08-02AD46625ND
2016-08-02AD46632ND
2016-08-02AD46633ND
2016-08-02AD466312.80 ppb
2016-10-06AD52657ND
2016-10-06AD52660ND
2016-10-06AD52654ND
2016-10-06AD52658ND
2016-10-06AD52667ND
2016-10-06AD52661ND
2016-10-06AD52659ND
2016-10-06AD52662ND
2017-01-31AD67890ND
2017-01-31AD67820ND
2017-01-31AD67819ND
2017-01-31AD67816ND
2017-01-31AD67812ND
2017-01-31AD67809ND
2017-01-31AD67813ND
2017-01-31AD67814ND
2017-01-31AD678182.60 ppb
2017-05-02AD8219416.0 ppb
2017-05-02AD82176ND
2017-05-02AD82149ND
2017-05-02AD82143ND
2017-05-02AD82147ND
2017-05-02AD82146ND
2017-05-02AD82145ND
2017-05-02AD82142ND
2017-05-02AD82148ND
2017-05-02AD82144ND
2017-07-05AD883201.80 ppb
2017-07-05AD88315ND
2017-07-05AD88322ND
2017-07-05AD88317ND
2017-07-05AD88318ND
2017-07-05AD88316ND
2017-07-05AD88321ND
2017-07-05AD883191.000 ppb
2017-09-19AD968427.20 ppb
2017-10-04AD99400ND
2017-10-04AD99395ND
2017-10-04AD99396ND
2017-10-04AD99394ND
2017-10-04AD99397ND
2017-10-04AD99399ND
2017-10-04AD99393ND
2017-10-04AD993982.10 ppb
2018-01-29AE11004ND
2018-01-29AE11010ND
2018-01-29AE11008ND
2018-01-29AE10937ND
2018-01-29AE10938ND
2018-01-29AE10936ND
2018-01-29AE10933ND
2018-01-29AE10932ND
2018-01-29AE10931ND
2018-01-29AE10934ND
2018-01-29AE10930ND
2018-03-23AE19936ND
2018-05-31AE28233ND
2018-05-31AE28231ND
2018-05-31AE28225ND
2018-05-31AE28235ND
2018-05-31AE28228ND
2018-05-31AE28232ND
2018-05-31AE28224ND
2018-05-31AE282373.60 ppb
2018-07-24AE34276ND
2018-07-24AE34308ND
2018-07-24AE34275ND
2018-07-24AE34289ND
2018-07-24AE34274ND
2018-07-24AE34290ND
2018-07-24AE34307ND
2018-07-24AE342731.70 ppb
2018-10-23AE44267ND
2018-10-23AE44269ND
2018-10-23AE44268ND
2018-10-23AE44273ND
2018-10-23AE44271ND
2018-10-23AE44272ND
2018-10-23AE44274ND
2018-10-23AE44270ND
2018-12-06AE48210ND
2019-01-23AE50969ND
2019-01-23AE50959ND
2019-01-23AE50967ND
2019-01-23AE50933ND
2019-01-23AE50944ND
2019-01-23AE50924ND
2019-01-23AE50932ND
2019-01-23AE50939ND
2019-01-23AE50942ND
2019-01-23AE50941ND
2019-01-23AE50934ND
2019-04-10AE61814ND
2019-04-10AE61783ND
2019-04-10AE61780ND
2019-04-10AE61776ND
2019-04-10AE61777ND
2019-04-10AE61782ND
2019-04-10AE61778ND
2019-04-10AE61779ND
2019-04-10AE61781ND
2019-07-16AE746583.20 ppb
2019-07-16AE74662ND
2019-07-16AE74612ND
2019-07-16AE746063.90 ppb
2019-07-16AE74605ND
2019-07-16AE74609ND
2019-07-16AE74623ND
2019-07-16AE74608ND
2019-07-16AE74624ND
2019-07-16AE74604ND
2019-10-15AE86663ND
2019-10-15AE86605ND
2019-10-15AE86606ND
2019-10-15AE866034.70 ppb
2019-10-15AE86599ND
2019-10-15AE86604ND
2019-10-15AE86601ND
2019-10-15AE86602ND
2019-10-15AE86600ND
2019-10-15AE86665ND