Know Your Environment. Protect Your Health.

Monochloroacetic acid

Retreat 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
20180.950 ppb42ND - 2.40 ppb
20190.500 ppb41ND - 2.00 ppb
2020ND40ND
20210.275 ppb41ND - 1.10 ppb
20221.45 ppb41ND - 5.80 ppb
20231.90 ppb441.40 ppb - 2.90 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
2018-02-01Q1804163001ND
2018-04-18Q18159300022.40 ppb
2018-07-18Q1828597001ND
2018-10-26Q18432980021.40 ppb
2019-02-26Q19083670012.00 ppb
2019-04-30Q1917510002ND
2019-09-24Q1968207001ND
2019-11-20Q1977646001ND
2020-02-11Q2005443001ND
2020-05-28Q2021197001ND
2020-08-24Q2033896001ND
2020-10-22Q2041241002ND
2021-01-14Q21010510011.10 ppb
2021-04-12Q2109262001ND
2021-07-13Q2118253001ND
2021-10-04Q2127183001ND
2022-03-16Q2208889001ND
2022-05-04Q2213446002ND
2022-08-24Q2225387001ND
2022-11-16Q22344940025.80 ppb
2023-02-15Q23062970021.90 ppb
2023-06-06Q23214490011.40 ppb
2023-08-22Q23354220012.90 ppb
2023-11-02Q23470750011.40 ppb