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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Fort Belknap Water Supply Corporation

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

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.25 ppb84ND - 2.50 ppb
20150.350 ppb81ND - 2.80 ppb
2016ND80ND
2017ND80ND
20181.60 ppb86ND - 3.10 ppb
20192.96 ppb882.10 ppb - 5.20 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
2014-03-19Q1409111002ND
2014-03-19Q14091110012.50 ppb
2014-06-09Q14200560022.50 ppb
2014-06-09Q1420056001ND
2014-08-13Q1436359004ND
2014-08-13Q1436359003ND
2014-10-13Q14520300022.50 ppb
2014-10-13Q14520300012.50 ppb
2015-03-04Q1508359003ND
2015-03-04Q1508359002ND
2015-06-22Q1523141001ND
2015-06-22Q1523141002ND
2015-09-24Q1537679002ND
2015-09-24Q15376790012.80 ppb
2015-12-08Q1548710002ND
2015-12-08Q1548710001ND
2016-03-22Q1611824002ND
2016-03-22Q1611824001ND
2016-06-08Q1623032004ND
2016-06-08Q1623032003ND
2016-09-22Q1639472003ND
2016-09-22Q1639472002ND
2016-12-05Q1652533002ND
2016-12-05Q1652533003ND
2017-03-09Q1710224006ND
2017-03-09Q1710224005ND
2017-05-17Q1720295002ND
2017-05-17Q1720295003ND
2017-09-05Q1740834003ND
2017-09-05Q1740834002ND
2017-11-21Q1759653003ND
2017-11-21Q1759653002ND
2018-02-27Q1808120001ND
2018-02-27Q1808120003ND
2018-05-10Q18194230031.80 ppb
2018-05-10Q18194230012.40 ppb
2018-08-20Q18332410021.40 ppb
2018-08-20Q18332410011.60 ppb
2018-11-15Q18467230052.50 ppb
2018-11-15Q18467230043.10 ppb
2019-02-14Q19070630012.70 ppb
2019-02-14Q19070630032.30 ppb
2019-05-23Q19283890053.90 ppb
2019-05-23Q19283890045.20 ppb
2019-09-17Q19662480032.90 ppb
2019-09-17Q19662480022.50 ppb
2019-12-02Q19784110022.10 ppb
2019-12-02Q19784110032.10 ppb