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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Town of Tullos 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

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.61 ppb168ND - 10.00 ppb
20151.66 ppb166ND - 7.70 ppb
20161.55 ppb166ND - 5.30 ppb
2017ND160ND
20181.71 ppb166ND - 7.50 ppb
20192.03 ppb1612ND - 4.70 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
2014-03-18L0040924-028.80 ppb
2014-03-18L0040924-0110.00 ppb
2014-03-18L0040924-028.80 ppb
2014-03-18L0040924-0110.00 ppb
2014-06-13351423230011.10 ppb
2014-06-13351423230021.000 ppb
2014-06-13351423230021.000 ppb
2014-06-13351423230011.10 ppb
2014-09-10L0048035-01ND
2014-09-10L0048035-02ND
2014-09-10L0048035-02ND
2014-09-10L0048035-01ND
2014-12-11L0051822-01ND
2014-12-11L0051822-02ND
2014-12-11L0051822-02ND
2014-12-11L0051822-01ND
2015-03-05LA4324-1ND
2015-03-05LA4324-2ND
2015-03-05LA4324-2ND
2015-03-05LA4324-1ND
2015-06-0435191798001ND
2015-06-04351917980021.50 ppb
2015-06-04351917980021.50 ppb
2015-06-0435191798001ND
2015-09-08LA11621-24.10 ppb
2015-09-08LA11621-17.70 ppb
2015-09-08LA11621-24.10 ppb
2015-09-08LA11621-17.70 ppb
2015-12-15LA15159-1ND
2015-12-15LA15159-2ND
2015-12-15LA15159-2ND
2015-12-15LA15159-1ND
2016-03-04LA17949-1ND
2016-03-04LA17949-2ND
2016-03-04LA17949-2ND
2016-03-04LA17949-1ND
2016-06-06LA21443-2ND
2016-06-06LA21443-1ND
2016-06-06LA21443-2ND
2016-06-06LA21443-1ND
2016-09-26LA25834-15.30 ppb
2016-09-26LA25834-23.90 ppb
2016-09-26LA25834-23.90 ppb
2016-09-26LA25834-15.30 ppb
2016-12-19LA28906-13.20 ppb
2016-12-19LA28906-2ND
2016-12-19LA28906-2ND
2016-12-19LA28906-13.20 ppb
2017-03-2735303255004ND
2017-03-2735303255003ND
2017-03-2735303255003ND
2017-03-2735303255004ND
2017-06-1335320062003ND
2017-06-1335320062003ND
2017-06-1335320062004ND
2017-06-1335320062004ND
2017-09-2535338785005ND
2017-09-2535338785006ND
2017-09-2535338785005ND
2017-09-2535338785006ND
2017-12-1935364468002ND
2017-12-1935364468001ND
2017-12-1935364468001ND
2017-12-1935364468002ND
2018-03-2035381353002ND
2018-03-2035381353001ND
2018-03-2035381353002ND
2018-03-2035381353001ND
2018-06-2635400851002ND
2018-06-2635400851002ND
2018-06-26354008510017.50 ppb
2018-06-26354008510017.50 ppb
2018-09-11354172880021.60 ppb
2018-09-11354172880014.60 ppb
2018-09-11354172880014.60 ppb
2018-09-11354172880021.60 ppb
2018-12-1735438141001ND
2018-12-1735438141002ND
2018-12-1735438141001ND
2018-12-1735438141002ND
2019-03-19354563160021.90 ppb
2019-03-19354563160014.70 ppb
2019-03-19354563160014.70 ppb
2019-03-19354563160021.90 ppb
2019-06-24354783540023.40 ppb
2019-06-24354783540023.40 ppb
2019-06-24354783540013.40 ppb
2019-06-24354783540013.40 ppb
2019-09-1735498595002ND
2019-09-1735498595001ND
2019-09-1735498595001ND
2019-09-1735498595002ND
2019-12-11355182720010.910 ppb
2019-12-11355182720021.90 ppb
2019-12-11355182720010.910 ppb
2019-12-11355182720021.90 ppb