Know Your Environment. Protect Your Health.

Monochloroacetic acid

Twin Buttes 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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.83 ppb43ND - 3.80 ppb
20191.43 ppb42ND - 4.20 ppb
20201.28 ppb42ND - 2.80 ppb
2021ND40ND
20220.750 ppb41ND - 3.00 ppb
20232.83 ppb442.10 ppb - 3.60 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
2018-02-28Q1808690002ND
2018-04-24Q18168580023.80 ppb
2018-07-17Q18282650011.40 ppb
2018-12-05Q18497630022.10 ppb
2019-03-06Q1909522001ND
2019-05-07Q19207880021.50 ppb
2019-07-18Q19460810014.20 ppb
2019-11-25Q1977973002ND
2020-03-04Q20083000022.30 ppb
2020-05-27Q2020854002ND
2020-07-29Q20296610022.80 ppb
2020-11-10Q2044086001ND
2021-03-08Q2106086002ND
2021-05-18Q2112977002ND
2021-07-20Q2119117002ND
2021-11-22Q2132535002ND
2022-02-14Q2205303002ND
2022-05-18Q22147580023.00 ppb
2022-07-27Q2221509002ND
2022-11-09Q2233853002ND
2023-02-15Q23063270022.30 ppb
2023-04-19Q23145550022.10 ppb
2023-08-10Q23332180023.60 ppb
2023-11-13Q23484380023.30 ppb