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EWG's Tap Water Database — 2021 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.

MORE ABOUT THIS CONTAMINANT

 

105

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
20150.131 ppb161ND - 2.10 ppb
20160.350 ppb162ND - 3.30 ppb
20170.875 ppb165ND - 3.10 ppb
20181.16 ppb2412ND - 2.70 ppb
20190.818 ppb176ND - 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
2014-03-2692195050001DIS-2ND
2014-03-2692195050002DIS-2ND
2014-03-2692195050003DIS-2ND
2014-03-2692195050004DIS-2ND
2014-05-2192202517001DIS-2ND
2014-05-2192202517002DIS-2ND
2014-05-2192202517003DIS-2ND
2014-05-2192202517004DIS-2ND
2014-08-2292214563001TTH-2ND
2014-08-2292214563002TTH-2ND
2014-08-2292214563003TTH-2ND
2014-08-2292214563004TTH-2ND
2014-11-1892226519001TTH-2ND
2014-11-1892226519002TTH-2ND
2014-11-1892226519003TTH-2ND
2014-11-1892226519004TTH-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
2016-02-1792287116001TTH-2ND
2016-02-1792287116002TTH-2ND
2016-02-1792287116003TTH-2ND
2016-02-1792287116004TTH-2ND
2016-05-1992298434001TTH-2ND
2016-05-1992298434002TTH-2ND
2016-05-1992298434003TTH-2ND
2016-05-1992298434004TTH-2ND
2016-08-1792309424001TTH-23.30 ppb
2016-08-1792309424002TTH-22.30 ppb
2016-08-1792309424003TTH-2ND
2016-08-1792309424004TTH-2ND
2016-11-1692320211001TTH-2ND
2016-11-1692320211002TTH-2ND
2016-11-1692320211003TTH-2ND
2016-11-1692320211004TTH-2ND
2017-02-1592330355001TTH2.90 ppb
2017-02-1592330355002TTHND
2017-02-1592330355003TTHND
2017-02-1592330355004TTH2.50 ppb
2017-05-1292341157001TTHND
2017-05-1292341157002TTH3.00 ppb
2017-05-1292341157003TTH3.10 ppb
2017-05-1292341157004TTH2.50 ppb
2017-08-1692352111001TTHND
2017-08-1692352111002TTHND
2017-08-1692352111005TTHND
2017-08-1792352111004TTHND
2017-11-1592363800001TTHND
2017-11-1592363800002TTHND
2017-11-1592363800003TTHND
2017-11-1592363800004TTHND
2018-02-1492373624005TTH ND
2018-02-1492373624006TTH ND
2018-02-1492373624007TTH ND
2018-02-1492373624008TTH ND
2018-05-0992384772001TTH ND
2018-05-0992384772002TTH 2.50 ppb
2018-05-0992384772003TTH 2.20 ppb
2018-05-0992384772004TTH 2.20 ppb
2018-08-0992395748001TTH 2.50 ppb
2018-08-0992395748002TTH 2.20 ppb
2018-08-0992395748003TTH 2.70 ppb
2018-08-0992395748004TTH ND
2018-11-282424-18 ND
2018-11-282425-18 ND
2018-11-282426-18 ND
2018-11-282427-18 ND
2018-11-2892409452002 ND
2018-11-2892409452002_3770ND
2018-11-2892409452003 2.60 ppb
2018-11-2892409452003_37702.60 ppb
2018-11-2892409452004 2.20 ppb
2018-11-2892409452004_37702.20 ppb
2018-11-2892409452005 2.00 ppb
2018-11-2892409452005_37702.00 ppb
2019-02-1292418267001_3770ND
2019-02-1292418267002_3770ND
2019-02-1292418267003_3770ND
2019-02-1292418267004_3770ND
2019-05-2292430651001_37702.30 ppb
2019-05-2292430651002_37702.30 ppb
2019-05-2292430651003_37702.70 ppb
2019-05-2292430651004_3770ND
2019-08-1492442133002_3770ND
2019-08-1492442133004_37702.10 ppb
2019-08-2092442133001_37702.50 ppb
2019-08-2692442996001_37702.00 ppb
2019-11-1992455540001_3770ND
2019-11-1992455540002_3770ND
2019-11-1992455540003_3770ND
2019-11-1992455540004_3770ND
2019-12-0492457286001_3770ND