Know Your Environment. Protect Your Health.

Monochloroacetic acid

City of Dawson

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
20181.24 ppb85ND - 2.70 ppb
20191.26 ppb86ND - 2.10 ppb
20200.625 ppb83ND - 2.00 ppb
20211.26 ppb85ND - 4.70 ppb
20220.150 ppb81ND - 1.20 ppb
20231.84 ppb881.40 ppb - 2.50 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
2018-02-08Q1805369002ND
2018-02-08Q1805369001ND
2018-04-19Q18161130032.40 ppb
2018-04-19Q18161130022.70 ppb
2018-07-17Q1828589001ND
2018-07-17Q18285890021.50 ppb
2018-10-25Q18427740011.50 ppb
2018-10-25Q18427740021.80 ppb
2019-02-06Q19058030011.40 ppb
2019-02-06Q19058030031.60 ppb
2019-04-18Q19157880011.50 ppb
2019-04-18Q19157880021.60 ppb
2019-07-31Q19493980022.10 ppb
2019-07-31Q19493980011.90 ppb
2019-10-17Q1972991001ND
2019-10-17Q1972991002ND
2020-01-29Q2003550001ND
2020-01-29Q2003550002ND
2020-04-14Q20147000022.00 ppb
2020-04-14Q2014700003ND
2020-08-04Q2030367001ND
2020-08-04Q20303670022.00 ppb
2020-10-23Q20413930011.000 ppb
2020-10-23Q2041393002ND
2021-01-12Q2100674002ND
2021-01-12Q21006740032.00 ppb
2021-04-08Q21090600011.10 ppb
2021-04-08Q21090600021.20 ppb
2021-07-08Q21179240014.70 ppb
2021-07-08Q21179240021.10 ppb
2021-10-11Q2128077001ND
2021-10-11Q2128077002ND
2022-03-15Q2208892002ND
2022-03-15Q2208892003ND
2022-05-03Q2213449001ND
2022-05-03Q2213449002ND
2022-08-17Q2224346001ND
2022-08-17Q2224346002ND
2022-11-15Q22343100011.20 ppb
2022-11-15Q2234310002ND
2023-02-15Q23062940021.80 ppb
2023-02-15Q23062940031.70 ppb
2023-05-31Q23203510011.70 ppb
2023-05-31Q23203510022.00 ppb
2023-07-24Q23292300012.10 ppb
2023-07-24Q23292300022.50 ppb
2023-10-31Q23465420011.50 ppb
2023-10-31Q23465420021.40 ppb