Know Your Environment. Protect Your Health.

Monochloroacetic acid

Morton Valley 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.

 

44

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.65 ppb661.80 ppb - 8.30 ppb
20191.93 ppb84ND - 4.70 ppb
20200.838 ppb84ND - 1.90 ppb
20210.817 ppb62ND - 2.50 ppb
20220.638 ppb83ND - 2.20 ppb
20232.76 ppb86ND - 6.30 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
2018-03-01Q18087160014.20 ppb
2018-05-23Q18209820018.30 ppb
2018-08-29Q18347160022.60 ppb
2018-08-29Q18347160012.40 ppb
2018-11-28Q18483110011.80 ppb
2018-11-28Q18483110022.60 ppb
2019-01-17Q19028140014.30 ppb
2019-01-17Q19028140024.70 ppb
2019-05-23Q19281620023.20 ppb
2019-05-23Q19281620033.20 ppb
2019-09-30Q1970282001ND
2019-09-30Q1970282002ND
2019-12-17Q1980355001ND
2019-12-17Q1980355002ND
2020-03-05Q20084410011.80 ppb
2020-03-05Q20084410021.90 ppb
2020-06-04Q20223580011.60 ppb
2020-06-04Q20223580021.40 ppb
2020-09-14Q2036343001ND
2020-09-14Q2036343002ND
2020-11-19Q2046038001ND
2020-11-19Q2046038002ND
2021-03-16Q21067770022.40 ppb
2021-03-16Q21067770032.50 ppb
2021-05-19Q2113078001ND
2021-05-19Q2113078002ND
2021-09-21Q2125789001ND
2021-09-21Q2125789002ND
2022-03-15Q22088710011.40 ppb
2022-03-15Q2208871002ND
2022-05-18Q22147160011.50 ppb
2022-05-18Q22147160022.20 ppb
2022-08-11Q2223339003ND
2022-08-11Q2223339002ND
2022-10-18Q2231742001ND
2022-10-18Q2231742002ND
2023-01-23Q23030290013.70 ppb
2023-01-23Q23030290026.30 ppb
2023-04-18Q23142690012.90 ppb
2023-04-18Q23142690022.80 ppb
2023-07-12Q23273450012.60 ppb
2023-07-12Q23273450023.80 ppb
2023-10-09Q2342879001ND
2023-10-09Q2342879002ND