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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Hilton Village

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.

 

43

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.10 ppb64ND - 1.90 ppb
20150.860 ppb53ND - 1.70 ppb
20160.800 ppb83ND - 2.30 ppb
20171.10 ppb85ND - 2.20 ppb
20180.775 ppb84ND - 1.90 ppb
2019ND80ND

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
2014-05-221407200-002ND
2014-05-221407200-001ND
2014-08-201413548-11.60 ppb
2014-08-201413548-21.60 ppb
2014-11-191419064B1.90 ppb
2014-11-191419064A1.50 ppb
2015-02-191502273AND
2015-02-191502273BND
2015-05-201506975-0021.10 ppb
2015-11-181518414-0021.50 ppb
2015-11-181518414-0011.70 ppb
2016-02-171602227-0022.00 ppb
2016-02-171602227ND
2016-05-181607356-001ND
2016-05-181607356-002ND
2016-08-171613560-0022.10 ppb
2016-08-171613560-0012.30 ppb
2016-11-161619289-001ND
2016-11-161619289-003ND
2017-02-151702296-002ND
2017-02-151702296-001ND
2017-05-171707226-0021.70 ppb
2017-05-171707226-0012.20 ppb
2017-08-161713342-0021.90 ppb
2017-08-161713342-0012.00 ppb
2017-11-151718934-0011.000 ppb
2017-11-151718934-002ND
2018-02-211802681-002ND
2018-02-211802681-001ND
2018-05-201807528-0011.20 ppb
2018-05-201807528-0021.30 ppb
2018-08-151814108-0011.80 ppb
2018-08-151814108-0021.90 ppb
2018-11-281820252-001ND
2018-11-281820252-002ND
2019-02-201902445-002ND
2019-02-201902445-001ND
2019-05-151907180-001ND
2019-05-151907180-002ND
2019-08-211914147-001ND
2019-08-211914147-002ND
2019-11-201919553-002ND
2019-11-201919553-001ND