Know Your Environment. Protect Your Health.

Monochloroacetic acid

Silverton Municipal Water System

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
20183.85 ppb86ND - 7.20 ppb
20190.513 ppb82ND - 2.20 ppb
20201.51 ppb84ND - 3.50 ppb
20210.438 ppb82ND - 1.80 ppb
20221.88 ppb82ND - 8.00 ppb
20233.51 ppb87ND - 7.50 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
2018-03-06Q1809047002ND
2018-03-06Q1809047001ND
2018-04-17Q18157820034.80 ppb
2018-04-17Q18157820023.80 ppb
2018-09-13Q18364140017.20 ppb
2018-09-13Q18364140026.00 ppb
2018-10-16Q18412500014.40 ppb
2018-10-16Q18412500024.60 ppb
2019-02-05Q19055630011.90 ppb
2019-02-05Q19055630022.20 ppb
2019-05-02Q1918084002ND
2019-05-02Q1918084003ND
2019-08-08Q1952882002ND
2019-08-08Q1952882001ND
2019-10-15Q1972657001ND
2019-10-15Q1972657002ND
2020-03-17Q20117120013.00 ppb
2020-03-17Q20117120023.50 ppb
2020-05-14Q20195500023.40 ppb
2020-05-14Q20195500032.20 ppb
2020-08-24Q2033882001ND
2020-08-24Q2033882002ND
2020-11-23Q2046634001ND
2020-11-23Q2046634002ND
2021-02-09Q2103892001ND
2021-02-09Q2103892002ND
2021-04-27Q2110648002ND
2021-04-27Q2110648003ND
2021-09-13Q21248310011.70 ppb
2021-09-13Q2124831002ND
2021-11-22Q2132489001ND
2021-11-22Q21324890021.80 ppb
2022-02-10Q2205040001ND
2022-02-10Q2205040002ND
2022-05-03Q2213180002ND
2022-05-03Q2213180003ND
2022-09-13Q2227191001ND
2022-09-13Q2227191002ND
2022-12-07Q22367640018.00 ppb
2022-12-07Q22367640027.00 ppb
2023-02-23Q23076830011.80 ppb
2023-02-23Q2307683002ND
2023-05-11Q23180350025.70 ppb
2023-05-11Q23180350037.50 ppb
2023-07-31Q23308120014.80 ppb
2023-07-31Q23308120023.80 ppb
2023-11-09Q23482160012.30 ppb
2023-11-09Q23482160022.20 ppb