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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Southside Mutual Domestic Water

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

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.29 ppb52ND - 3.90 ppb
2015ND50ND
2016ND40ND
20172.20 ppb441.50 ppb - 2.90 ppb
20181.35 ppb43ND - 2.40 ppb
20191.21 ppb42ND - 3.90 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
2014-01-2820140030693.90 ppb
2014-04-301405018-001A2.56 ppb
2014-06-231406B02-001AND
2014-07-151407817-001AND
2014-10-291410D57-001AND
2015-01-261501933-001AND
2015-04-281504C45-001AND
2015-04-281504C51-001AND
2015-07-222015021074ND
2015-10-272015032268ND
2016-01-272016002551ND
2016-04-272016011866ND
2016-07-262016021325ND
2016-10-262016031177ND
2017-01-2420170022482.00 ppb
2017-04-2620170121922.90 ppb
2017-07-1920170209431.50 ppb
2017-10-1120170293692.40 ppb
2018-01-2220180023362.40 ppb
2018-04-3020180125361.70 ppb
2018-07-3020180215121.30 ppb
2018-10-312018031277ND
2019-01-0920190006910.920 ppb
2019-04-141904751-001ND
2019-07-122019019143ND
2019-10-0820190289153.90 ppb