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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Town of Holly Springs

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

 

68

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
20140.688 ppb163ND - 5.00 ppb
2015ND200ND
2016ND160ND
2017ND160ND
20181.57 ppb3216ND - 4.50 ppb
20190.272 ppb324ND - 2.50 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
2014-02-1816046-14ND
2014-02-1816047-14ND
2014-02-1816048-14ND
2014-02-1816045-14ND
2014-05-1517386-14ND
2014-05-1517387-145.00 ppb
2014-05-1517388-144.00 ppb
2014-05-1517389-14ND
2014-08-14173620-142.00 ppb
2014-08-14173621-14ND
2014-08-14173622-14ND
2014-08-14173623-14ND
2014-11-19174416-14ND
2014-11-19174417-14ND
2014-11-19174415-14ND
2014-11-19174414-14ND
2015-02-11ND
2015-02-11ND
2015-02-11ND
2015-02-11ND
2015-05-19ND
2015-05-19ND
2015-05-19ND
2015-05-20ND
2015-06-30ND
2015-06-30ND
2015-06-30ND
2015-06-30ND
2015-08-19ND
2015-08-19ND
2015-08-19ND
2015-08-19ND
2015-11-18ND
2015-11-18ND
2015-11-18ND
2015-11-18ND
2016-02-18CZ01838-04ND
2016-02-18CZ01838-03ND
2016-02-18CZ01838-02ND
2016-02-18CZ01838-01ND
2016-05-23CZ06908-01ND
2016-05-23CZ06908-02ND
2016-05-23CZ06908-03ND
2016-05-23CZ06908-04ND
2016-08-19CZ11804-01ND
2016-08-19CZ11804-02ND
2016-08-19CZ11804-03ND
2016-08-19CZ11804-04ND
2016-11-22CZ17096-01ND
2016-11-22CZ17096-04ND
2016-11-22CZ17096-02ND
2016-11-22CZ17096-03ND
2017-02-21CA02558-04ND
2017-02-21CA02558-03ND
2017-02-21CA02558-02ND
2017-02-21CA02558-01ND
2017-05-17CA07190-04ND
2017-05-17CA07190-03ND
2017-05-17CA07190-02ND
2017-05-17CA07190-01ND
2017-08-18CA12522-01ND
2017-08-18CA12522-02ND
2017-08-18CA12522-03ND
2017-08-18CA12522-04ND
2017-11-20CA12521-01ND
2017-11-20CA12521-02ND
2017-11-20CA12521-03ND
2017-11-20CA12521-04ND