Know Your Environment. Protect Your Health.

Monochloroacetic acid

Windthorst 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.

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.63 ppb43ND - 5.90 ppb
20192.70 ppb43ND - 4.60 ppb
20201.37 ppb63ND - 4.20 ppb
20212.90 ppb87ND - 3.60 ppb
20221.03 ppb86ND - 1.60 ppb
20232.48 ppb881.20 ppb - 5.00 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
2018-02-14Q1806396001ND
2018-05-08Q18191830015.90 ppb
2018-09-11Q18359960074.80 ppb
2018-11-28Q18485630013.80 ppb
2019-02-13Q19067630014.60 ppb
2019-05-21Q19274920013.50 ppb
2019-09-16Q19655510012.70 ppb
2019-12-02Q1978408002ND
2020-03-04Q2008224005ND
2020-06-08Q20227570014.20 ppb
2020-09-24Q20378690032.00 ppb
2020-09-24Q20378690042.00 ppb
2020-12-09Q2049167001ND
2020-12-09Q2049167002ND
2021-03-02Q21054100013.00 ppb
2021-03-02Q21054100023.50 ppb
2021-05-06Q21118330013.00 ppb
2021-05-06Q21118330023.60 ppb
2021-08-10Q21213760083.40 ppb
2021-08-10Q21213760073.10 ppb
2021-11-01Q2130743001ND
2021-11-01Q21307430023.60 ppb
2022-01-25Q2202473001ND
2022-01-25Q2202473002ND
2022-04-12Q22111730011.60 ppb
2022-04-12Q22111730021.40 ppb
2022-07-12Q22194800111.50 ppb
2022-07-12Q22194800121.000 ppb
2022-10-05Q22301090011.20 ppb
2022-10-05Q22301090021.50 ppb
2023-02-21Q23070620052.00 ppb
2023-02-21Q23070620062.40 ppb
2023-05-10Q23179650015.00 ppb
2023-05-10Q23179650024.70 ppb
2023-09-12Q23390790031.60 ppb
2023-09-12Q23390790041.60 ppb
2023-10-31Q23465910011.20 ppb
2023-10-31Q23465910021.30 ppb