Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Monochloroacetic acid

Middletown Water Department

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
20140.929 ppb2420ND - 2.70 ppb
2015N/A00N/A
20160.950 ppb1611ND - 1.90 ppb
20170.831 ppb1613ND - 1.70 ppb
20180.731 ppb1614ND - 1.20 ppb
20190.463 ppb169ND - 1.000 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
2014-01-07DBP 2003889970.600 ppb
2014-01-07DBP 200388998ND
2014-01-07DBP 2003889990.800 ppb
2014-01-07DBP 2003889960.700 ppb
2014-03-13DBP 2003926650.600 ppb
2014-03-13DBP 200392666ND
2014-03-13DBP 2003926670.500 ppb
2014-03-13DBP 2003926680.700 ppb
2014-04-04DBP 2003937050.800 ppb
2014-04-04DBP 2003937040.600 ppb
2014-04-04DBP 2003937030.600 ppb
2014-04-04DBP 2003937020.800 ppb
2014-07-03DBP 2003989952.50 ppb
2014-07-03DBP 2003989960.800 ppb
2014-07-03DBP 2003989981.80 ppb
2014-07-03DBP 2003989992.70 ppb
2014-10-02DBP 2004053871.80 ppb
2014-10-02DBP 2004053881.30 ppb
2014-10-02DBP 2004053890.800 ppb
2014-10-02DBP 2004053902.40 ppb
2014-12-11DBP 2004094570.900 ppb
2014-12-11DBP 200409456ND
2014-12-11DBP 200409455ND
2014-12-11DBP 2004094540.600 ppb
2016-01-07DBP 200431589ND
2016-01-07DBP 200431590ND
2016-01-07DBP 200431591ND
2016-01-07DBP 200431588ND
2016-04-07DBP 2004368411.70 ppb
2016-04-07DBP 2004368421.30 ppb
2016-04-07DBP 2004368431.50 ppb
2016-04-07DBP 2004368441.60 ppb
2016-07-07DBP 2004440351.40 ppb
2016-07-07DBP 2004440361.90 ppb
2016-07-07DBP 2004440341.30 ppb
2016-07-07DBP 2004440331.60 ppb
2016-10-07DBP 2004519161.000 ppb
2016-10-07DBP 2004519170.800 ppb
2016-10-07DBP 200451918ND
2016-10-07DBP 2004519191.10 ppb
2017-01-05DBP 2004581900.500 ppb
2017-01-05DBP 200458191ND
2017-01-05DBP 200458192ND
2017-01-05DBP 200458193ND
2017-04-07DBP 2004640911.000 ppb
2017-04-07DBP 2004640880.900 ppb
2017-04-07DBP 2004640890.900 ppb
2017-04-07DBP 2004640900.900 ppb
2017-07-06DBP 2004712831.50 ppb
2017-07-06DBP 2004712841.000 ppb
2017-07-06DBP 2004712851.30 ppb
2017-07-06DBP 2004712861.70 ppb
2017-10-05DBP 2004787921.20 ppb
2017-10-05DBP 2004787930.800 ppb
2017-10-05DBP 2004787940.700 ppb
2017-10-05DBP 2004787950.900 ppb
2018-01-05DBP 2004854100.600 ppb
2018-01-05DBP 2004854130.700 ppb
2018-01-05DBP 200485412ND
2018-01-05DBP 2004854110.600 ppb
2018-04-05DBP 2004914460.700 ppb
2018-04-05DBP 2004914470.700 ppb
2018-04-05DBP 2004914480.800 ppb
2018-04-05DBP 2004914490.700 ppb
2018-07-04DBP 2004986411.20 ppb
2018-07-04DBP 2004986400.900 ppb
2018-07-04DBP 2004986381.20 ppb
2018-07-04DBP 2004986390.800 ppb
2018-10-04DBP 2005080471.000 ppb
2018-10-04DBP 2005080481.10 ppb
2018-10-04DBP 200508049ND
2018-10-04DBP 2005080500.700 ppb
2019-01-03DBP 2005175060.900 ppb
2019-01-03DBP 2005175071.000 ppb
2019-01-03DBP 200517508ND
2019-01-03DBP 2005175091.000 ppb
2019-04-04DBP 2005271830.700 ppb
2019-04-04DBP 2005271850.800 ppb
2019-04-04DBP 2005271841.000 ppb
2019-04-04DBP 2005271820.800 ppb
2019-07-03DBP 200538922ND
2019-07-03DBP 2005389230.600 ppb
2019-07-03DBP 200538924ND
2019-07-03DBP 200538925ND
2019-10-17DBP 2005533330.600 ppb
2019-10-17DBP 200553335ND
2019-10-17DBP 200553337ND
2019-10-17DBP 200553339ND