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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Royse City

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.344 ppb162ND - 3.30 ppb
20152.34 ppb167ND - 10.1 ppb
2016ND160ND
20172.73 ppb164ND - 14.3 ppb
20181.51 ppb1611ND - 2.80 ppb
20191.28 ppb168ND - 3.50 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
2014-02-12Q1404480004ND
2014-02-12Q1404480003ND
2014-02-12Q1404480002ND
2014-02-12Q1404480001ND
2014-04-28Q14135980042.20 ppb
2014-04-28Q1413598003ND
2014-04-28Q1413598002ND
2014-04-28Q1413598001ND
2014-07-14Q1427932002ND
2014-07-14Q1427932001ND
2014-07-14Q1427932003ND
2014-07-14Q1427932004ND
2014-10-16Q1452868004ND
2014-10-16Q1452868003ND
2014-10-16Q14528680023.30 ppb
2014-10-16Q1452868001ND
2015-01-20Q15018280043.50 ppb
2015-01-20Q15018280034.20 ppb
2015-01-20Q15018280022.90 ppb
2015-01-20Q15018280012.80 ppb
2015-04-28Q1515891001ND
2015-04-28Q1515891002ND
2015-04-28Q1515891004ND
2015-04-28Q1515891003ND
2015-07-17Q1527979004ND
2015-07-17Q1527979003ND
2015-07-17Q1527979002ND
2015-07-17Q15279790015.20 ppb
2015-10-12Q1540071004ND
2015-10-12Q1540071003ND
2015-10-12Q154007100210.1 ppb
2015-10-12Q15400710018.80 ppb
2016-02-09Q1605411002ND
2016-02-09Q1605411001ND
2016-02-09Q1605411003ND
2016-02-09Q1605411004ND
2016-05-04Q1617771004ND
2016-05-04Q1617771003ND
2016-05-04Q1617771002ND
2016-05-04Q1617771001ND
2016-08-01Q1631532004ND
2016-08-01Q1631532003ND
2016-08-01Q1631532002ND
2016-08-01Q1631532001ND
2016-10-19Q1644625002ND
2016-10-19Q1644625004ND
2016-10-19Q1644625003ND
2016-10-19Q1644625001ND
2017-01-24Q1703061004ND
2017-01-24Q1703061002ND
2017-01-24Q1703061001ND
2017-01-24Q1703061003ND
2017-04-20Q171636300513.5 ppb
2017-04-20Q171636300413.4 ppb
2017-04-20Q1716363003ND
2017-04-20Q171636300214.3 ppb
2017-07-19Q1729746001ND
2017-07-19Q1729746003ND
2017-07-19Q1729746004ND
2017-07-19Q1729746002ND
2017-10-18Q17537060022.50 ppb
2017-10-18Q1753706004ND
2017-10-18Q1753706001ND
2017-10-18Q1753706003ND
2018-02-02Q1804366003ND
2018-02-02Q1804366004ND
2018-02-02Q1804366002ND
2018-02-02Q1804366001ND
2018-05-01Q18174660012.10 ppb
2018-05-01Q18174660022.00 ppb
2018-05-01Q18174660042.30 ppb
2018-05-01Q18174660032.50 ppb
2018-08-09Q1832019004ND
2018-08-09Q18320190031.80 ppb
2018-08-09Q18320190022.80 ppb
2018-08-09Q18320190012.70 ppb
2018-11-06Q18446770051.30 ppb
2018-11-06Q18446770042.10 ppb
2018-11-06Q18446770032.30 ppb
2018-11-06Q18446770022.20 ppb
2019-02-25Q19084110012.30 ppb
2019-02-25Q19084110032.00 ppb
2019-02-25Q19084110042.00 ppb
2019-02-25Q19084110022.40 ppb
2019-06-03Q19314900042.20 ppb
2019-06-03Q19314900032.70 ppb
2019-06-03Q19314900023.50 ppb
2019-06-03Q19314900013.30 ppb
2019-09-11Q1964398004ND
2019-09-11Q1964398003ND
2019-09-11Q1964398002ND
2019-09-11Q1964398001ND
2019-11-18Q1977580002ND
2019-11-18Q1977580005ND
2019-11-18Q1977580004ND
2019-11-18Q1977580003ND