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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Two Rivers Utilities

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)

48

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.57 ppb3216ND - 7.30 ppb
20155.83 ppb32323.80 ppb - 8.80 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
2014-01-272963636ND
2014-01-272963637ND
2014-01-272963638ND
2014-01-272963639ND
2014-01-272963640ND
2014-01-272963641ND
2014-01-272963642ND
2014-01-272963643ND
2014-04-233013723ND
2014-04-233013724ND
2014-04-233013725ND
2014-04-233013726ND
2014-04-233013727ND
2014-04-233013728ND
2014-04-233013729ND
2014-04-233013730ND
2014-07-2230676454.10 ppb
2014-07-2230676464.70 ppb
2014-07-2230676474.60 ppb
2014-07-2230676484.50 ppb
2014-07-2230676494.10 ppb
2014-07-2230676504.40 ppb
2014-07-2230676515.00 ppb
2014-07-2230676524.70 ppb
2014-10-2331281065.10 ppb
2014-10-2331281077.30 ppb
2014-10-2331281086.20 ppb
2014-10-2331281095.30 ppb
2014-10-2331281104.70 ppb
2014-10-2331281115.60 ppb
2014-10-2331281126.20 ppb
2014-10-2331281135.60 ppb
2015-01-224.00 ppb
2015-01-224.90 ppb
2015-01-224.60 ppb
2015-01-224.60 ppb
2015-01-223.80 ppb
2015-01-224.50 ppb
2015-01-225.10 ppb
2015-01-224.60 ppb
2015-04-235.60 ppb
2015-04-236.90 ppb
2015-04-235.60 ppb
2015-04-235.40 ppb
2015-04-234.10 ppb
2015-04-235.70 ppb
2015-04-236.80 ppb
2015-04-236.10 ppb
2015-07-235.40 ppb
2015-07-236.00 ppb
2015-07-235.60 ppb
2015-07-235.80 ppb
2015-07-235.10 ppb
2015-07-235.60 ppb
2015-07-236.10 ppb
2015-07-236.30 ppb
2015-10-267.40 ppb
2015-10-268.80 ppb
2015-10-267.40 ppb
2015-10-266.60 ppb
2015-10-265.60 ppb
2015-10-266.60 ppb
2015-10-268.20 ppb
2015-10-267.90 ppb
2016-01-213389478ND
2016-01-213389479ND
2016-01-213389480ND
2016-01-213389481ND
2016-01-213389482ND
2016-01-213389483ND
2016-01-213389484ND
2016-01-213389485ND
2016-04-213435395ND
2016-04-213435396ND
2016-04-213435397ND
2016-04-213435398ND
2016-04-213435399ND
2016-04-213435400ND
2016-04-213435401ND
2016-04-213435402ND
2016-07-213501170ND
2016-07-213501171ND
2016-07-213501172ND
2016-07-213501173ND
2016-07-213501174ND
2016-07-213501175ND
2016-07-213501176ND
2016-07-213501177ND
2016-10-203569355ND
2016-10-203569356ND
2016-10-203569357ND
2016-10-203569358ND
2016-10-203569359ND
2016-10-203569360ND
2016-10-203569361ND
2016-10-203569362ND
2017-01-233625774ND
2017-01-233625775ND
2017-01-233625776ND
2017-01-233625777ND
2017-01-233625778ND
2017-01-233625779ND
2017-01-233625780ND
2017-01-233625781ND
2017-04-203679453ND
2017-04-203679454ND
2017-04-203679455ND
2017-04-203679456ND
2017-04-203679457ND
2017-04-203679458ND
2017-04-203679459ND
2017-04-203679460ND
2017-07-173734393ND
2017-07-173734386ND
2017-07-173734387ND
2017-07-173734388ND
2017-07-173734389ND
2017-07-173734390ND
2017-07-173734391ND
2017-07-173734392ND
2017-10-233805481ND
2017-10-233805482ND
2017-10-233805483ND
2017-10-233805484ND
2017-10-233805485ND
2017-10-233805486ND
2017-10-233805487ND
2017-10-233805488ND
2018-01-243858775 ND
2018-01-243858776 ND
2018-01-243858777 ND
2018-01-243858778 ND
2018-01-243858779 ND
2018-01-243858780 ND
2018-01-243858781 ND
2018-01-243858782 ND
2018-04-303924236 ND
2018-04-303924237 ND
2018-04-303924238 ND
2018-04-303924239 ND
2018-04-303924240 ND
2018-04-303924241 ND
2018-04-303924242 ND
2018-04-303924243 ND
2018-07-173991828 ND
2018-07-173991829 ND
2018-07-173991830 ND
2018-07-173991831 ND
2018-07-173991832 ND
2018-07-173991833 ND
2018-07-173991834 ND
2018-07-173991835 ND
2018-10-084082370 ND
2018-10-084082372 ND
2018-10-084082374 ND
2018-10-084082376 ND
2018-10-084082378 ND
2018-10-084082380 ND
2018-10-084082382 ND
2018-10-084082384 ND
2019-01-164175597 ND
2019-01-164175598 ND
2019-01-164175599 ND
2019-01-164175600 ND
2019-01-164175601 ND
2019-01-164175602 ND
2019-01-164175603 ND
2019-01-164175604 ND
2019-04-034248413 ND
2019-04-034248414 ND
2019-04-034248415 ND
2019-04-034248416 ND
2019-04-034248417 ND
2019-04-034248418 ND
2019-04-034248419 ND
2019-04-034248420 ND
2019-07-104349055 ND
2019-07-104349057 ND
2019-07-104349059 ND
2019-07-104349061 ND
2019-07-104349063 ND
2019-07-104349065 ND
2019-07-104349067 ND
2019-07-104349069 ND
2019-10-084449399 ND
2019-10-084449401 ND
2019-10-084449403 ND
2019-10-084449405 ND
2019-10-084449407 ND
2019-10-084449409 ND
2019-10-084449411 ND
2019-10-084449413 ND