Know Your Environment. Protect Your Health.

Monochloroacetic acid

North Cherokee Water Supply Corporation

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.33 ppb86ND - 3.30 ppb
20190.663 ppb84ND - 1.70 ppb
20200.600 ppb83ND - 2.70 ppb
20210.775 ppb84ND - 1.90 ppb
20221.33 ppb84ND - 3.00 ppb
20231.59 ppb87ND - 2.20 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk.a public health goal. This health guideline protects against change to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-08Q1805473006ND
2018-02-08Q1805473005ND
2018-05-03Q18179770021.40 ppb
2018-05-03Q18179770011.20 ppb
2018-08-16Q18328920013.30 ppb
2018-08-16Q18328920022.00 ppb
2018-10-25Q18430980011.30 ppb
2018-10-25Q18430980021.40 ppb
2019-01-30Q19046140011.50 ppb
2019-01-30Q19046140021.10 ppb
2019-06-06Q1932706011ND
2019-06-06Q19327060121.70 ppb
2019-07-02Q1941675002ND
2019-07-02Q1941675001ND
2019-11-25Q19782730021.000 ppb
2019-11-25Q1978273003ND
2020-02-18Q2006064001ND
2020-02-18Q20060640021.10 ppb
2020-04-16Q2015088001ND
2020-04-16Q2015088002ND
2020-07-23Q20289870012.70 ppb
2020-07-23Q2028987002ND
2020-10-01Q2038627003ND
2020-10-01Q20386270041.000 ppb
2021-02-26Q21051480041.20 ppb
2021-02-26Q21051480051.50 ppb
2021-05-04Q2111274002ND
2021-05-04Q2111274003ND
2021-08-12Q21216720011.60 ppb
2021-08-12Q21216720021.90 ppb
2021-11-02Q2130686001ND
2021-11-02Q2130686002ND
2022-02-02Q2203975001ND
2022-02-02Q2203975002ND
2022-04-13Q2211382001ND
2022-04-13Q2211382002ND
2022-08-25Q22253730012.40 ppb
2022-08-25Q22253730022.50 ppb
2022-10-10Q22304700102.70 ppb
2022-10-10Q22304700113.00 ppb
2023-01-11Q23018120012.00 ppb
2023-01-11Q23018120021.50 ppb
2023-04-06Q23128990011.50 ppb
2023-04-06Q23128990022.10 ppb
2023-07-12Q23273590012.20 ppb
2023-07-12Q23273590022.20 ppb
2023-10-26Q2346262001ND
2023-10-26Q23462620021.20 ppb