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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Ruidoso Water System

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

 

92

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.31 ppb166ND - 5.76 ppb
20150.134 ppb161ND - 2.15 ppb
20161.20 ppb166ND - 5.86 ppb
2017ND160ND
20180.378 ppb122ND - 2.51 ppb
20190.128 ppb161ND - 2.04 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
2014-01-061401309-002BND
2014-01-061401309-001BND
2014-01-061401309-004BND
2014-01-061401309-003BND
2014-04-071404322-001B2.77 ppb
2014-04-071404322-002BND
2014-04-071404322-003BND
2014-04-071404322-004BND
2014-07-071407318-001B3.15 ppb
2014-07-071407319-001B2.18 ppb
2014-07-071407321-001BND
2014-07-071407320-001BND
2014-10-071410458-001B2.11 ppb
2014-10-071410455-001BND
2014-10-071410451-001B5.02 ppb
2014-10-071410453-001B5.76 ppb
2015-01-141501512-001BND
2015-01-141501513-001BND
2015-01-141501502-001BND
2015-01-141501489-001BND
2015-04-301505069-001B2.15 ppb
2015-04-301505071-001BND
2015-04-301505070-001BND
2015-04-301505068-001BND
2015-07-132015020114ND
2015-07-132015020116ND
2015-07-132015020115ND
2015-07-132015020113ND
2015-10-081510587-001BND
2015-10-081510588-001BND
2015-10-081510590-001BND
2015-10-191510A65-001BND
2016-01-261602022-001A2.29 ppb
2016-01-261602021-001A2.03 ppb
2016-01-261602019-001AND
2016-01-261602020-001AND
2016-04-261604C02-001A5.86 ppb
2016-04-261604C01-001AND
2016-04-261604C03-001AND
2016-04-261604C04-001A3.91 ppb
2016-07-281608017-001A2.56 ppb
2016-07-281608019-001A2.54 ppb
2016-07-281608018-001AND
2016-07-281608015-001AND
2016-10-271610E43-001ND
2016-10-271610E45-001ND
2016-10-271610E42-001ND
2016-10-271610E46-001ND
2017-01-181701856-001ND
2017-01-181701858-001ND
2017-01-181701860-001ND
2017-01-181701859-001ND
2017-04-111704502-001ND
2017-04-111704501-001ND
2017-04-111704500-001ND
2017-04-111704499-001ND
2017-07-201707C42-001ND
2017-07-201707C40-001ND
2017-07-201707C41-001ND
2017-07-201707C39-001ND
2017-10-161710908-001ND
2017-10-161710905-001ND
2017-10-161710907-001ND
2017-10-161710906-001ND
2018-01-181801C43-0012.03 ppb
2018-01-181801C42-001ND
2018-01-181801C40-001ND
2018-01-181801C39-001ND
2018-04-051804529-001ND
2018-04-051804522-001ND
2018-04-051804523-001ND
2018-04-051804527-001ND
2018-10-101810685-001ND
2018-10-101810690-001ND
2018-10-101810691-0012.51 ppb
2018-10-101810693-001ND
2019-01-161901697-001ND
2019-01-161901699-001ND
2019-01-161901700-001ND
2019-01-161901701-001ND
2019-04-161904910-001ND
2019-04-161904912-001ND
2019-04-161904913-001ND
2019-04-161904916-001ND
2019-07-171907A53-001ND
2019-07-171907A55-001ND
2019-07-171907A54-001ND
2019-07-171907A52-001ND
2019-10-211910B97-001ND
2019-10-211910B96-001ND
2019-10-211910B95-0012.04 ppb
2019-10-211910B94-001ND