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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Nueces County WCID 4

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

 

88

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND160ND
2016ND160ND
20173.14 ppb167ND - 15.0 ppb
2018ND160ND
20193.23 ppb1612ND - 6.80 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
2014-03-11AC46468ND
2014-03-11AC46459ND
2014-06-10AC56460ND
2014-06-10AC56458ND
2014-08-05AC62218ND
2014-08-05AC62219ND
2014-11-12AC71882ND
2014-11-12AC71885ND
2015-02-18AC80936ND
2015-02-18AC80924ND
2015-02-18AC80932ND
2015-02-18AC80908ND
2015-04-22AC89191ND
2015-04-22AC89199ND
2015-04-22AC89200ND
2015-04-22AC89206ND
2015-08-11AD03571ND
2015-08-11AD03565ND
2015-08-11AD03577ND
2015-08-11AD03574ND
2015-12-01AD14883ND
2015-12-01AD14891ND
2015-12-01AD14908ND
2015-12-01AD14909ND
2016-02-09AD22695ND
2016-02-09AD22714ND
2016-02-09AD22686ND
2016-02-09AD22694ND
2016-04-13AD32988ND
2016-04-13AD32997ND
2016-04-13AD32990ND
2016-04-13AD32987ND
2016-09-13AD49113ND
2016-09-13AD49074ND
2016-09-13AD49116ND
2016-09-13AD49077ND
2016-11-10AD57707ND
2016-11-10AD57718ND
2016-11-10AD57709ND
2016-11-10AD57705ND
2017-02-22AD71471ND
2017-02-22AD71470ND
2017-02-22AD71468ND
2017-02-22AD71466ND
2017-05-15AD841944.40 ppb
2017-05-15AD841843.40 ppb
2017-05-15AD841934.90 ppb
2017-05-15AD841835.30 ppb
2017-08-24AD94112ND
2017-08-24AD94123ND
2017-08-24AD94092ND
2017-08-24AD94122ND
2017-11-15AE049428.80 ppb
2017-11-15AE04938ND
2017-11-15AE049408.40 ppb
2017-11-15AE0493915.0 ppb
2018-02-07AE12710ND
2018-02-07AE12735ND
2018-02-07AE12743ND
2018-02-07AE12736ND
2018-04-25AE23916ND
2018-04-25AE23893ND
2018-04-25AE23915ND
2018-04-25AE23886ND
2018-07-24AE34292ND
2018-07-24AE34286ND
2018-07-24AE34291ND
2018-07-24AE34285ND
2018-10-16AE43622ND
2018-10-16AE43621ND
2018-10-16AE43618ND
2018-10-16AE43619ND
2019-01-22AE506523.80 ppb
2019-01-22AE506563.80 ppb
2019-01-22AE506543.80 ppb
2019-01-22AE50651ND
2019-04-16AE62505ND
2019-04-16AE625032.30 ppb
2019-04-16AE62509ND
2019-04-16AE625042.60 ppb
2019-08-01AE767506.60 ppb
2019-08-01AE76767ND
2019-08-01AE767536.30 ppb
2019-08-01AE767544.60 ppb
2019-11-20AE899466.80 ppb
2019-11-20AE899583.50 ppb
2019-11-20AE899553.70 ppb
2019-11-20AE899503.80 ppb