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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Blythe

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

 

88

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20146.28 ppb1614ND - 20.0 ppb
201527.0 ppb1611ND - 90.0 ppb
20168.00 ppb164ND - 42.0 ppb
2017ND160ND
2018ND120ND
20191.33 ppb124ND - 4.60 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
2014-01-224790-803-08106.70 ppb
2014-01-224790-801-08005.50 ppb
2014-01-224790-802-08304.20 ppb
2014-01-224790-804-00005.80 ppb
2014-04-164790-804-07003.00 ppb
2014-04-164790-803-06007.10 ppb
2014-04-164790-802-07453.30 ppb
2014-04-164790-801-08308.00 ppb
2014-07-224790-804-09309.70 ppb
2014-07-224790-803-110020.0 ppb
2014-07-224790-802-10009.20 ppb
2014-07-224790-801-10309.80 ppb
2014-10-144790-803-10303.80 ppb
2014-10-144790-802-1130ND
2014-10-144790-804-1120ND
2014-10-144790-801-10504.40 ppb
2015-01-204790-803-10303.30 ppb
2015-01-204790-804-1120ND
2015-01-204790-802-1130ND
2015-01-204790-801-1050ND
2015-04-154790-804-0730ND
2015-04-154790-803-0700ND
2015-04-154790-801-08305.20 ppb
2015-04-154790-802-08002.90 ppb
2015-07-134790-801-083056.0 ppb
2015-07-134790-804-073040.0 ppb
2015-07-134790-802-080041.0 ppb
2015-07-134790-803-070044.0 ppb
2015-10-284790-801-123082.0 ppb
2015-10-284790-804-140090.0 ppb
2015-10-284790-802-130034.0 ppb
2015-10-284790-803-133034.0 ppb
2016-01-184790-801-113030.0 ppb
2016-01-184790-804-103029.0 ppb
2016-01-184790-802-110027.0 ppb
2016-01-184790-803-100042.0 ppb
2016-04-219469-802-1030ND
2016-04-219469-801-1000ND
2016-04-219469-804-1130ND
2016-04-219469-803-1100ND
2016-07-254790-804-1130ND
2016-07-254790-803-1100ND
2016-07-254790-801-1000ND
2016-07-254790-802-1030ND
2016-10-174790-803-1100ND
2016-10-174790-804-1130ND
2016-10-174790-801-1000ND
2016-10-174790-802-1030ND
2017-01-174790-803-0700ND
2017-01-174790-801-0600ND
2017-01-174790-802-0630ND
2017-01-174790-804-0730ND
2017-04-184790-801-0600ND
2017-04-184790-804-0730ND
2017-04-184790-802-0630ND
2017-04-184790-803-0700ND
2017-07-174790-801-0600ND
2017-07-174790-804-0730ND
2017-07-174790-802-0630ND
2017-07-174790-803-0700ND
2017-10-264790-801-0600ND
2017-10-264790-802-0630ND
2017-10-264790-804-0730ND
2017-10-264790-803-0700ND
2018-01-224790-802-0630ND
2018-01-224790-801-0600ND
2018-01-224790-804-0730ND
2018-01-224790-803-0700ND
2018-04-164790-803-0700ND
2018-04-164790-801-0600ND
2018-04-164790-804-0730ND
2018-04-164790-802-0630ND
2018-07-174790-804-0730ND
2018-07-174790-802-0630ND
2018-07-174790-801-0600ND
2018-07-174790-803-0700ND
2019-01-284790-804-1100ND
2019-01-284790-801-0800ND
2019-01-284790-803-1030ND
2019-01-284790-802-0830ND
2019-04-294790-801-0800ND
2019-04-294790-804-1100ND
2019-04-294790-803-1030ND
2019-04-294790-802-0830ND
2019-07-164790-801-11004.20 ppb
2019-07-164790-804-12303.40 ppb
2019-07-164790-803-12004.60 ppb
2019-07-164790-802-11303.80 ppb