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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Oskaloosa Municipal Water Department

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

 

100

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND200ND
20161.39 ppb166ND - 6.79 ppb
20170.329 ppb163ND - 2.03 ppb
20184.80 ppb1615ND - 11.6 ppb
20196.09 ppb1615ND - 19.1 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
2014-02-102034467ND
2014-02-102034466ND
2014-02-102034469ND
2014-02-182034252ND
2014-05-052049986ND
2014-05-052049989ND
2014-05-052049987ND
2014-05-052049988ND
2014-08-192073347ND
2014-08-192073348ND
2014-08-192073349ND
2014-08-192073358ND
2014-11-102092246ND
2014-11-102092247ND
2014-11-102092248ND
2014-11-102092249ND
2015-02-04OE212780ND
2015-02-04OE212783ND
2015-02-04OE212782ND
2015-02-04OE212781ND
2015-05-13OE243306ND
2015-05-13OE243307ND
2015-05-13OE243308ND
2015-05-13OE243305ND
2015-08-24OE285098ND
2015-08-24OE285095ND
2015-08-24OE285097ND
2015-08-24OE285096ND
2015-10-15OE306881ND
2015-10-15OE306882ND
2015-10-15OE306883ND
2015-10-15OE306884ND
2015-11-10OE316418ND
2015-11-10OE316420ND
2015-11-10OE316419ND
2015-11-10OE316421ND
2016-02-03OE341714ND
2016-02-03OE341716ND
2016-02-03OE341717ND
2016-02-03OE341715ND
2016-05-17OE378972ND
2016-05-17OE378973ND
2016-05-17OE378974ND
2016-05-17OE378975ND
2016-08-181H61636-045.04 ppb
2016-08-181H61636-034.63 ppb
2016-08-181H61636-02ND
2016-08-231H61881-016.79 ppb
2016-11-081K60828-011.50 ppb
2016-11-081K60828-04ND
2016-11-081K60828-021.80 ppb
2016-11-081K60828-032.45 ppb
2017-02-071B70559-01ND
2017-02-071B70559-02ND
2017-02-071B70559-03ND
2017-02-071B70559-04ND
2017-05-021E70277-01ND
2017-05-021E70277-02ND
2017-05-021E70277-03ND
2017-05-021E70277-04ND
2017-08-011H70195-02ND
2017-08-011H70195-04ND
2017-08-011H70195-03ND
2017-08-011H70195-01ND
2017-11-071K70695-011.74 ppb
2017-11-071K70695-022.03 ppb
2017-11-071K70695-031.50 ppb
2017-11-071K70695-04ND
2018-02-061B80483-0411.6 ppb
2018-02-061B80483-032.46 ppb
2018-02-061B80483-021.63 ppb
2018-02-061B80483-015.12 ppb
2018-05-011E80224-042.30 ppb
2018-05-011E80224-012.88 ppb
2018-05-011E80224-025.79 ppb
2018-05-011E80224-03ND
2018-08-071H80753-043.72 ppb
2018-08-071H80753-036.94 ppb
2018-08-071H80753-029.94 ppb
2018-08-071H80753-018.69 ppb
2018-11-061K80576-013.63 ppb
2018-11-061K80576-023.91 ppb
2018-11-061K80576-034.26 ppb
2018-11-061K80576-043.97 ppb
2019-02-121B90888-016.25 ppb
2019-02-121B90888-027.38 ppb
2019-02-121B90888-038.17 ppb
2019-02-121B90888-048.73 ppb
2019-05-071E90716-015.37 ppb
2019-05-071E90716-044.97 ppb
2019-05-071E90716-034.53 ppb
2019-05-071E90716-026.08 ppb
2019-08-131H91188-028.16 ppb
2019-08-131H91188-045.58 ppb
2019-08-131H91188-036.18 ppb
2019-08-131H91188-0119.1 ppb
2019-11-191K91528-04ND
2019-11-191K91528-031.83 ppb
2019-11-191K91528-022.00 ppb
2019-11-191K91528-013.15 ppb