Know Your Environment. Protect Your Health.

Monochloroacetic acid

Hope, City of

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
20180.450 ppb41ND - 1.80 ppb
2019ND40ND
20200.750 ppb41ND - 3.00 ppb
20212.65 ppb43ND - 4.70 ppb
20220.600 ppb41ND - 2.40 ppb
2023ND40ND

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
2018-01-169070231.80 ppb
2018-04-16937634ND
2018-07-161006790ND
2018-10-151060868ND
2019-01-151106088ND
2019-04-151138079ND
2019-07-221208267ND
2019-10-141260405ND
2020-01-131309364ND
2020-04-211360280ND
2020-07-271461939ND
2020-10-1215956333.00 ppb
2021-01-191747962ND
2021-04-1918207133.60 ppb
2021-07-1218829974.70 ppb
2021-10-1219896152.30 ppb
2022-01-112139436ND
2022-04-042230297ND
2022-07-1123016032.40 ppb
2022-10-112378316ND
2023-01-172433454ND
2023-04-102481547ND
2023-07-172539071ND
2023-10-092592576ND