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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Bolivar Peninsula SUD

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
2013N/A00N/A
20140.663 ppb163ND - 5.20 ppb
20151.74 ppb168ND - 5.40 ppb
20161.61 ppb1610ND - 2.90 ppb
20171.49 ppb167ND - 6.90 ppb
20181.29 ppb167ND - 4.80 ppb
20192.37 ppb1610ND - 6.30 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
2014-03-14AC47113ND
2014-03-14AC47114ND
2014-03-14AC47112ND
2014-03-14AC471152.30 ppb
2014-06-06AC56268ND
2014-06-06AC563115.20 ppb
2014-06-06AC562703.10 ppb
2014-06-06AC56257ND
2014-08-15AC64105ND
2014-08-15AC64094ND
2014-08-15AC64171ND
2014-08-15AC64110ND
2014-11-21AC72753ND
2014-11-21AC72755ND
2014-11-21AC72747ND
2014-11-21AC72754ND
2015-02-11AC80179ND
2015-02-11AC80173ND
2015-02-11AC80175ND
2015-02-11AC80182ND
2015-05-29AC940052.90 ppb
2015-05-29AC940012.90 ppb
2015-05-29AC940202.30 ppb
2015-05-29AC940113.10 ppb
2015-09-23AD081904.80 ppb
2015-09-23AD081943.00 ppb
2015-09-23AD081983.40 ppb
2015-09-23AD081935.40 ppb
2015-10-23AD11705ND
2015-10-23AD11709ND
2015-10-23AD11708ND
2015-10-23AD11707ND
2016-02-19AD24708ND
2016-02-19AD24710ND
2016-02-19AD24709ND
2016-02-19AD247202.80 ppb
2016-06-10AD401752.50 ppb
2016-06-10AD401772.50 ppb
2016-06-10AD401832.50 ppb
2016-06-10AD401812.90 ppb
2016-08-05AD472872.80 ppb
2016-08-05AD472882.30 ppb
2016-08-05AD472852.30 ppb
2016-08-05AD472912.80 ppb
2016-11-28AD59328ND
2016-11-28AD593272.40 ppb
2016-11-28AD59331ND
2016-11-28AD59330ND
2017-01-27AD67482ND
2017-01-27AD67483ND
2017-01-27AD67485ND
2017-01-27AD674842.00 ppb
2017-04-24AD80629ND
2017-04-24AD80630ND
2017-04-24AD80628ND
2017-04-24AD806252.10 ppb
2017-07-07AD886672.50 ppb
2017-07-07AD886683.90 ppb
2017-07-07AD886692.50 ppb
2017-07-07AD886664.00 ppb
2017-11-16AE051566.90 ppb
2017-11-16AE05155ND
2017-11-16AE05154ND
2017-11-16AE05157ND
2018-02-05AE12200ND
2018-02-05AE12141ND
2018-02-05AE12153ND
2018-02-05AE12156ND
2018-05-11AE261492.10 ppb
2018-05-11AE261532.90 ppb
2018-05-11AE26148ND
2018-05-11AE261542.60 ppb
2018-07-20AE341284.30 ppb
2018-07-20AE34127ND
2018-07-20AE341302.00 ppb
2018-07-20AE341294.80 ppb
2018-10-12AE43403ND
2018-10-12AE43402ND
2018-10-12AE434012.00 ppb
2018-10-12AE43400ND
2019-02-11AE53742ND
2019-02-11AE53732ND
2019-02-11AE53734ND
2019-02-11AE537532.30 ppb
2019-04-05AE613825.60 ppb
2019-04-05AE613843.10 ppb
2019-04-05AE613853.10 ppb
2019-04-05AE613866.30 ppb
2019-09-09AE824663.00 ppb
2019-09-09AE824682.70 ppb
2019-09-09AE824704.50 ppb
2019-09-09AE824674.50 ppb
2019-10-30AE87938ND
2019-10-30AE87939ND
2019-10-30AE87941ND
2019-10-30AE879402.80 ppb