Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Monochloroacetic acid

Sioux City Water Supply

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

 

192

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND320ND
20150.0938 ppb321ND - 3.00 ppb
2016ND320ND
20170.344 ppb325ND - 3.00 ppb
20180.469 ppb326ND - 3.00 ppb
20190.688 ppb329ND - 3.00 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
2014-02-102034449ND
2014-02-102034450ND
2014-02-102034451ND
2014-02-102034452ND
2014-02-102034453ND
2014-02-102034454ND
2014-02-102034455ND
2014-02-102034456ND
2014-05-192052125ND
2014-05-192052126ND
2014-05-192052127ND
2014-05-192052128ND
2014-05-192052130ND
2014-05-192052132ND
2014-05-192052133ND
2014-05-192052134ND
2014-08-192073351ND
2014-08-192073352ND
2014-08-192073353ND
2014-08-192073354ND
2014-08-192073355ND
2014-08-192073356ND
2014-08-192073357ND
2014-08-192073359ND
2014-11-182093487ND
2014-11-182093488ND
2014-11-182093489ND
2014-11-182093490ND
2014-11-182093497ND
2014-11-182093296ND
2014-11-182093297ND
2014-11-182093298ND
2015-02-24OE215607ND
2015-02-24OE215610ND
2015-02-24OE215609ND
2015-02-24OE215608ND
2015-02-24OE215611ND
2015-02-24OE215612ND
2015-02-24OE215613ND
2015-02-24OE215614ND
2015-05-10OE241568ND
2015-05-11OE241562ND
2015-05-11OE241563ND
2015-05-11OE241565ND
2015-05-11OE241564ND
2015-05-11OE241566ND
2015-05-11OE241567ND
2015-05-11OE241569ND
2015-08-24OE284981ND
2015-08-24OE284974ND
2015-08-24OE284975ND
2015-08-24OE284976ND
2015-08-24OE284979ND
2015-08-24OE284978ND
2015-08-24OE2849803.00 ppb
2015-08-24OE284977ND
2015-11-17OE318534ND
2015-11-17OE318535ND
2015-11-17OE318536ND
2015-11-17OE318537ND
2015-11-17OE318538ND
2015-11-17OE318539ND
2015-11-17OE318540ND
2015-11-17OE318541ND
2016-02-10OE343942ND
2016-02-10OE343937ND
2016-02-10OE343941ND
2016-02-10OE343939ND
2016-02-10OE343940ND
2016-02-10OE343935ND
2016-02-10OE343936ND
2016-02-10OE343938ND
2016-05-11OE376952ND
2016-05-11OE376953ND
2016-05-11OE376954ND
2016-05-11OE376955ND
2016-05-11OE376957ND
2016-05-11OE376958ND
2016-05-11OE376956ND
2016-05-11OE376959ND
2016-08-16OE416182ND
2016-08-16OE416184ND
2016-08-16OE416185ND
2016-08-16OE416186ND
2016-08-16OE416187ND
2016-08-16OE416183ND
2016-08-16OE416181ND
2016-08-16OE416188ND
2016-11-16OE453268ND
2016-11-16OE453261ND
2016-11-16OE453262ND
2016-11-16OE453263ND
2016-11-16OE453265ND
2016-11-16OE453266ND
2016-11-16OE453264ND
2016-11-16OE453267ND
2017-02-08OE478922ND
2017-02-08OE478923ND
2017-02-08OE478921ND
2017-02-08OE478918ND
2017-02-08OE478916ND
2017-02-08OE478920ND
2017-02-08OE478919ND
2017-02-08OE478917ND
2017-05-23OE516469ND
2017-05-23OE516468ND
2017-05-23OE516462ND
2017-05-23OE516464ND
2017-05-23OE516463ND
2017-05-23OE5164652.00 ppb
2017-05-23OE516467ND
2017-05-23OE516466ND
2017-08-07OE547583ND
2017-08-07OE5475883.00 ppb
2017-08-07OE5475862.00 ppb
2017-08-07OE5475872.00 ppb
2017-08-07OE5475842.00 ppb
2017-08-07OE547585ND
2017-08-07OE547590ND
2017-08-07OE547589ND
2017-11-20OE592649ND
2017-11-20OE592648ND
2017-11-20OE592644ND
2017-11-20OE592646ND
2017-11-20OE592647ND
2017-11-20OE592645ND
2017-11-20OE592650ND
2017-11-20OE592643ND
2018-02-13OE622533ND
2018-02-13OE622534ND
2018-02-13OE622535ND
2018-02-13OE622536ND
2018-02-13OE622537ND
2018-02-13OE622538ND
2018-02-13OE622539ND
2018-02-13OE622540ND
2018-05-21OE6604952.00 ppb
2018-05-21OE6604963.00 ppb
2018-05-21OE660497ND
2018-05-21OE6604983.00 ppb
2018-05-21OE660499ND
2018-05-21OE660500ND
2018-05-21OE660501ND
2018-05-21OE660502ND
2018-08-14OE6989842.00 ppb
2018-08-14OE698985ND
2018-08-14OE6989862.00 ppb
2018-08-14OE698987ND
2018-08-14OE698988ND
2018-08-14OE698989ND
2018-08-14OE698990ND
2018-08-14OE698991ND
2018-11-19OE741881ND
2018-11-19OE741882ND
2018-11-19OE741883ND
2018-11-19OE741884ND
2018-11-19OE741885ND
2018-11-19OE741886ND
2018-11-19OE741887ND
2018-11-19OE7418883.00 ppb
2019-02-13OE770735ND
2019-02-13OE770736ND
2019-02-13OE7707372.00 ppb
2019-02-13OE770738ND
2019-02-13OE770739ND
2019-02-13OE770740ND
2019-02-13OE770741ND
2019-02-13OE770742ND
2019-05-08OE805451ND
2019-05-08OE805452ND
2019-05-08OE8054533.00 ppb
2019-05-08OE8054542.00 ppb
2019-05-08OE8054552.00 ppb
2019-05-08OE8054562.00 ppb
2019-05-08OE805457ND
2019-05-08OE8054583.00 ppb
2019-08-14OE850327ND
2019-08-14OE850328ND
2019-08-14OE8503292.00 ppb
2019-08-14OE850330ND
2019-08-14OE850331ND
2019-08-14OE850332ND
2019-08-14OE8503333.00 ppb
2019-08-14OE8503343.00 ppb
2019-11-19OE895925ND
2019-11-19OE895926ND
2019-11-19OE895927ND
2019-11-19OE895928ND
2019-11-19OE895929ND
2019-11-19OE895930ND
2019-11-19OE895931ND
2019-11-19OE895932ND