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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Camino Real Regional Utility Authority

Monochloroacetic 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

 

93

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND170ND
20150.154 ppb122ND - 1.000 ppb
20160.838 ppb165ND - 6.60 ppb
20171.36 ppb164ND - 7.20 ppb
2018ND160ND
20190.0750 ppb161ND - 1.20 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic 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 system toxicity.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-121403726-004BND
2014-03-121403726-005BND
2014-03-121403726-001BND
2014-03-121403726-003BND
2014-03-121403726-002BND
2014-04-141404658-001BND
2014-04-141404659-001BND
2014-04-141404657-001BND
2014-04-141404660-001BND
2014-07-081407380-001BND
2014-07-081407381-001BND
2014-07-081407379-001BND
2014-07-081407377-001BND
2014-10-201410939-001BND
2014-12-101412549-001BND
2014-12-101412540-001BND
2014-12-101412551-001BND
2015-02-101502469-001BND
2015-02-101502458-001BND
2015-02-101502468-001BND
2015-02-101502467-001BND
2015-07-2920150218031.000 ppb
2015-07-292015021806ND
2015-07-292015021805ND
2015-07-292015021804ND
2015-10-1320150309120.850 ppb
2015-10-132015030914ND
2015-10-132015030913ND
2015-10-132015030911ND
2016-01-262016002414ND
2016-01-262016002415ND
2016-01-262016002413ND
2016-01-262016002412ND
2016-05-0420160126256.60 ppb
2016-05-0420160126230.740 ppb
2016-05-042016012626ND
2016-05-042016012624ND
2016-07-1320160201604.50 ppb
2016-07-132016020158ND
2016-07-132016020161ND
2016-07-1320160201590.580 ppb
2016-10-0620160293570.990 ppb
2016-10-062016029358ND
2016-10-062016029356ND
2016-10-062016029355ND
2017-01-0520170004893.50 ppb
2017-01-0520170004875.90 ppb
2017-01-0520170004867.20 ppb
2017-01-0520170004885.20 ppb
2017-04-122017010886ND
2017-04-122017010887ND
2017-04-122017010888ND
2017-04-122017010889ND
2017-07-122017020034ND
2017-07-122017020031ND
2017-07-122017020032ND
2017-07-122017020033ND
2017-10-232017030622ND
2017-10-232017030621ND
2017-10-232017030620ND
2017-10-232017030623ND
2018-01-232018002292ND
2018-01-232018002291ND
2018-01-232018002290ND
2018-01-232018002289ND
2018-04-252018011476ND
2018-04-252018011473ND
2018-04-252018011474ND
2018-04-252018011475ND
2018-07-182018019825ND
2018-07-182018019824ND
2018-07-182018019823ND
2018-07-182018019822ND
2018-10-222018030060ND
2018-10-222018030061ND
2018-10-222018030062ND
2018-10-222018030063ND
2019-01-162019001469ND
2019-01-162019001470ND
2019-01-162019001471ND
2019-01-162019001472ND
2019-04-172019009806ND
2019-04-172019009809ND
2019-04-172019009808ND
2019-04-172019009807ND
2019-07-022019018237ND
2019-07-022019018239ND
2019-07-022019018238ND
2019-07-0220190182361.20 ppb
2019-10-022019028215ND
2019-10-022019028214ND
2019-10-022019028213ND
2019-10-022019028212ND