Know Your Environment. Protect Your Health.

Monochloroacetic acid

Gowc North 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.

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20212.90 ppb442.60 ppb - 3.10 ppb
20220.618 ppb113ND - 3.30 ppb
20231.36 ppb2012ND - 5.30 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
2021-07-01356447080013.10 ppb
2021-07-01356447080022.80 ppb
2021-10-01356687570022.60 ppb
2021-10-01356687570013.10 ppb
2022-01-0635689210001ND
2022-01-06356892100021.20 ppb
2022-04-04357096870013.30 ppb
2022-04-04357096870022.30 ppb
2022-07-1435732729002ND
2022-07-1435732729001ND
2022-10-1935754806003ND
2022-10-1935754806005ND
2022-10-1935754806004ND
2022-10-1935754806002ND
2022-10-1935754806001ND
2023-01-13357728330051.60 ppb
2023-01-13357728330042.70 ppb
2023-01-13357728330032.60 ppb
2023-01-13357728330021.30 ppb
2023-01-13357728330011.30 ppb
2023-04-05357909070031.50 ppb
2023-04-0535790907005ND
2023-04-05357909070042.00 ppb
2023-04-05357909070021.70 ppb
2023-04-05357909070011.10 ppb
2023-07-2035814811001ND
2023-07-2035814811002ND
2023-07-20358148110034.90 ppb
2023-07-20358148110045.30 ppb
2023-07-2035814811005ND
2023-10-1235834459001ND
2023-10-1235834459002ND
2023-10-12358344590031.10 ppb
2023-10-1235834459004ND
2023-10-1235834459005ND