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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Aqua Ohio - Ashtabula

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
2013N/A00N/A
20144.16 ppb1613ND - 8.50 ppb
20151.31 ppb165ND - 6.80 ppb
20161.74 ppb167ND - 5.80 ppb
20173.51 ppb1612ND - 21.3 ppb
20180.150 ppb161ND - 2.40 ppb
20191.24 ppb127ND - 2.70 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
2014-02-10AE236302.60 ppb
2014-02-10AE236295.60 ppb
2014-02-10AE23632ND
2014-02-10AE23631ND
2014-05-08AE325157.00 ppb
2014-05-08AE325166.60 ppb
2014-05-08AE325174.60 ppb
2014-05-08AE325186.90 ppb
2014-08-11AE442076.10 ppb
2014-08-11AE442082.40 ppb
2014-08-11AE442092.40 ppb
2014-08-11AE442106.20 ppb
2014-11-10AE566754.90 ppb
2014-11-10AE56676ND
2014-11-10AE566742.70 ppb
2014-11-10AE566738.50 ppb
2015-02-10AE65630ND
2015-02-10AE65631ND
2015-02-10AE65632ND
2015-02-10AE65633ND
2015-05-12AE75526ND
2015-05-12AE75527ND
2015-05-12AE75524ND
2015-05-12AE75525ND
2015-08-10AE873233.60 ppb
2015-08-10AE873265.50 ppb
2015-08-10AE873243.00 ppb
2015-08-10AE873256.80 ppb
2015-11-10AE99109ND
2015-11-10AE991102.10 ppb
2015-11-10AE99111ND
2015-11-10AE99112ND
2016-02-09AF07495ND
2016-02-09AF07496ND
2016-02-09AF07497ND
2016-02-09AF07498ND
2016-05-09AF15759ND
2016-05-09AF157622.40 ppb
2016-05-09AF157614.30 ppb
2016-05-09AF157603.80 ppb
2016-08-09AF257664.10 ppb
2016-08-09AF257674.30 ppb
2016-08-09AF257685.80 ppb
2016-08-09AF25769ND
2016-11-08AF35541ND
2016-11-08AF35540ND
2016-11-08AF35538ND
2016-11-08AF355393.20 ppb
2017-02-08AF432043.50 ppb
2017-02-08AF432052.60 ppb
2017-02-08AF432062.80 ppb
2017-02-08AF432072.70 ppb
2017-05-10AF510293.20 ppb
2017-05-10AF510303.20 ppb
2017-05-10AF510313.90 ppb
2017-05-10AF510322.30 ppb
2017-08-08AF600273.60 ppb
2017-08-08AF600293.60 ppb
2017-08-08AF60028ND
2017-08-08AF600263.50 ppb
2017-11-08AF68799ND
2017-11-08AF68800ND
2017-11-08AF6880121.3 ppb
2017-11-08AF68802ND
2018-02-08AF76099ND
2018-02-08AF76101ND
2018-02-08AF76100ND
2018-02-08AF760982.40 ppb
2018-05-08AF83681ND
2018-05-08AF83682ND
2018-05-08AF83683ND
2018-05-08AF83684ND
2018-08-09AF92470ND
2018-08-09AF92471ND
2018-08-09AF92472ND
2018-08-09AF92473ND
2018-11-0818-34710-03ND
2018-11-0818-34710-02ND
2018-11-0818-34710-01ND
2018-11-0818-34710-04ND
2019-02-11AG086851.90 ppb
2019-02-11AG08688ND
2019-02-11AG086871.70 ppb
2019-02-11AG086861.90 ppb
2019-05-08AG17098ND
2019-05-08AG17099ND
2019-05-08AG17100ND
2019-05-08AG17101ND
2019-08-08AG275742.60 ppb
2019-08-08AG275752.70 ppb
2019-08-08AG275762.40 ppb
2019-08-08AG275771.70 ppb