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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Perris, City Of

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND160ND
2019ND160ND

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
2014-03-273761-803-1115ND
2014-03-273761-801-1145ND
2014-03-273761-802-1100ND
2014-03-273761-804-1130ND
2014-06-273761-804-1040ND
2014-06-273761-803-1100ND
2014-06-273761-802-1110ND
2014-06-273761-801-1030ND
2014-09-243761-804-1055ND
2014-09-243761-803-1110ND
2014-09-243761-802-1125ND
2014-09-243761-801-1045ND
2014-12-183761-803-0950ND
2014-12-183761-802-0955ND
2014-12-183761-804-1005ND
2014-12-183761-801-1015ND
2015-03-263761-804-1010ND
2015-03-263761-803-1050ND
2015-03-263761-802-1030ND
2015-03-263761-801-0950ND
2015-06-253761-804-1510ND
2015-06-253761-803-1450ND
2015-06-253761-801-1420ND
2015-06-253761-802-1400ND
2015-09-163761-801-1135ND
2015-09-163761-804-1150ND
2015-09-163761-803-1120ND
2015-09-163761-802-1105ND
2015-12-113761-802-1030ND
2015-12-113761-801-1115ND
2015-12-113761-804-1210ND
2015-12-113761-803-1140ND
2016-03-093761-802-0930ND
2016-03-093761-801-0900ND
2016-03-093761-804-1030ND
2016-03-093761-803-1000ND
2016-06-083761-802-0945ND
2016-06-083761-801-0830ND
2016-06-083761-804-1015ND
2016-06-083761-803-0900ND
2016-09-143761-804-1050ND
2016-09-143761-802-1140ND
2016-09-143761-801-1120ND
2016-09-143761-803-1200ND
2016-12-143761-804-0940ND
2016-12-143761-802-0920ND
2016-12-143761-803-1000ND
2016-12-143761-801-0900ND
2017-03-153761-803-1230ND
2017-03-153761-804-0950ND
2017-03-153761-802-1515ND
2017-03-153761-801-0930ND
2017-06-143761-803-0900ND
2017-06-143761-801-0830ND
2017-06-143761-802-1015ND
2017-06-143761-804-0930ND
2017-09-133761-801-0957ND
2017-09-133761-802-1113ND
2017-09-133761-804-1025ND
2017-09-133761-803-1138ND
2017-12-133761-804-1155ND
2017-12-133761-801-1130ND
2017-12-133761-803-1020ND
2017-12-133761-802-1040ND
2018-03-143761-804-1000ND
2018-03-143761-801-1020ND
2018-03-143761-802-1040ND
2018-03-143761-803-1115ND
2018-06-133761-802-1120ND
2018-06-133761-803-1140ND
2018-06-133761-804-1200ND
2018-06-133761-801-1100ND
2018-09-133761-802-1215ND
2018-09-133761-804-1130ND
2018-09-133761-803-1200ND
2018-09-133761-801-1145ND
2018-12-133761-802-0945ND
2018-12-133761-804-0925ND
2018-12-133761-803-1040ND
2018-12-133761-801-0910ND
2019-03-133761-801-1115ND
2019-03-133761-803-1200ND
2019-03-133761-802-1145ND
2019-03-133761-804-1215ND
2019-06-123761-801-1100ND
2019-06-123761-803-1045ND
2019-06-123761-804-1130ND
2019-06-123761-802-1000ND
2019-09-133761-804-1045ND
2019-09-133761-803-1015ND
2019-09-133761-801-1115ND
2019-09-133761-802-0955ND
2019-12-123761-804-1050ND
2019-12-123761-803-1155ND
2019-12-123761-801-1120ND
2019-12-123761-802-1215ND