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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

Town of Lyon

Monobromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids 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

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.875 ppb86ND - 2.00 ppb
20150.625 ppb84ND - 2.00 ppb
20161.13 ppb85ND - 2.00 ppb
20170.375 ppb82ND - 2.00 ppb
20180.500 ppb83ND - 2.00 ppb
20197.88 ppb84ND - 24.0 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 25 ppb

The EWG Health Guideline of 25 ppb for monobromoacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.. This health guideline protects against muscular degeneration.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-17140218-010HAND
2014-02-17140218-009HAND
2014-05-14140515-002HA1.000 ppb
2014-05-14140515-001HA2.00 ppb
2014-08-13140814-012HA1.000 ppb
2014-08-13140814-011HA1.000 ppb
2014-11-17141118-006HA1.000 ppb
2014-11-17141118-005HA1.000 ppb
2015-02-11150212-012HAND
2015-02-11150212-011HAND
2015-05-13150514-003HA2.00 ppb
2015-05-13150514-004HA1.000 ppb
2015-08-10150811-006HA1.000 ppb
2015-08-10150811-005HA1.000 ppb
2015-11-12151113-004HAND
2015-11-12151113-003HAND
2016-02-09160210-002HAND
2016-02-09160210-001HAND
2016-05-12160513-002HA2.00 ppb
2016-05-12160513-001HA2.00 ppb
2016-08-09160810-002HA1.000 ppb
2016-08-09160810-001HAND
2016-11-08161109-003HA2.00 ppb
2016-11-08161109-004HA2.00 ppb
2017-02-13170214-004HA2.00 ppb
2017-02-13170214-003HA1.000 ppb
2017-05-09170510-002HAND
2017-05-09170510-001HAND
2017-08-15170816-006HAND
2017-08-15170816-005HAND
2017-11-14171115-005HAND
2017-11-14171115-004HAND
2018-02-13180214-002HAND
2018-02-13180214-001HAND
2018-05-15180516-001HAND
2018-05-15180516-002HAND
2018-08-14180815-016HA1.000 ppb
2018-08-14180815-015HAND
2018-11-05181106-008HA2.00 ppb
2018-11-05181106-007HA1.000 ppb
2019-02-26190227-008HAND
2019-02-26190227-007HAND
2019-05-14190515-004HA8.00 ppb
2019-05-14190515-003HA14.0 ppb
2019-08-15190816-003HA17.0 ppb
2019-08-15190816-002HA24.0 ppb
2019-12-05191206-001HAND
2019-12-05191206-002HAND