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EWG's Tap Water Database — 2019 UPDATE

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Monochloroacetic acid

Anson County 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.

 

77

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.738 ppb134ND - 2.70 ppb
2014ND160ND
20150.131 ppb161ND - 2.10 ppb
20160.350 ppb162ND - 3.30 ppb
20170.875 ppb165ND - 3.10 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
2013-05-2292159149001ND
2013-05-2292159149002ND
2013-05-2292159149003ND
2013-08-2192169805004-22.10 ppb
2013-08-2192169805003-2ND
2013-08-2192169805001-22.70 ppb
2013-08-21921698050042.10 ppb
2013-08-2192169805003ND
2013-08-21921698050012.70 ppb
2013-11-2092180597001-2ND
2013-11-2092180597002-2ND
2013-11-2092180597003-2ND
2013-11-2092180597004-2ND
2014-03-2692195050002DIS-2ND
2014-03-2692195050003DIS-2ND
2014-03-2692195050004DIS-2ND
2014-03-2692195050001DIS-2ND
2014-05-2192202517004DIS-2ND
2014-05-2192202517001DIS-2ND
2014-05-2192202517002DIS-2ND
2014-05-2192202517003DIS-2ND
2014-08-2292214563003TTH-2ND
2014-08-2292214563004TTH-2ND
2014-08-2292214563002TTH-2ND
2014-08-2292214563001TTH-2ND
2014-11-1892226519004TTH-2ND
2014-11-1892226519003TTH-2ND
2014-11-1892226519002TTH-2ND
2014-11-1892226519001TTH-2ND
2015-02-18ND
2015-02-18ND
2015-02-18ND
2015-02-18ND
2015-05-20ND
2015-05-20ND
2015-05-20ND
2015-05-20ND
2015-08-19ND
2015-08-192.10 ppb
2015-08-19ND
2015-08-19ND
2015-11-18ND
2015-11-18ND
2015-11-18ND
2015-11-18ND
2016-02-1792287116004TTH-2ND
2016-02-1792287116003TTH-2ND
2016-02-1792287116002TTH-2ND
2016-02-1792287116001TTH-2ND
2016-05-1992298434004TTH-2ND
2016-05-1992298434003TTH-2ND
2016-05-1992298434002TTH-2ND
2016-05-1992298434001TTH-2ND
2016-08-1792309424001TTH-23.30 ppb
2016-08-1792309424002TTH-22.30 ppb
2016-08-1792309424003TTH-2ND
2016-08-1792309424004TTH-2ND
2016-11-1692320211004TTH-2ND
2016-11-1692320211003TTH-2ND
2016-11-1692320211002TTH-2ND
2016-11-1692320211001TTH-2ND
2017-02-1592330355001TTH2.90 ppb
2017-02-1592330355002TTHND
2017-02-1592330355003TTHND
2017-02-1592330355004TTH2.50 ppb
2017-05-1292341157004TTH2.50 ppb
2017-05-1292341157003TTH3.10 ppb
2017-05-1292341157002TTH3.00 ppb
2017-05-1292341157001TTHND
2017-08-1692352111005TTHND
2017-08-1692352111002TTHND
2017-08-1692352111001TTHND
2017-08-1792352111004TTHND
2017-11-1592363800001TTHND
2017-11-1592363800002TTHND
2017-11-1592363800003TTHND
2017-11-1592363800004TTHND