Know Your Environment. Protect Your Health.

Monochloroacetic acid

Pax Water Company

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.320 ppb51ND - 1.60 ppb
2019ND30ND
2020ND40ND
202114.0 ppb42ND - 32.3 ppb
202237.5 ppb5515.7 ppb - 84.6 ppb
202344.0 ppb4426.0 ppb - 78.0 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
2018-01-0935380545001ND
2018-02-2735377765001ND
2018-05-2935395438001ND
2018-08-28354147840011.60 ppb
2018-11-2935434044001ND
2019-02-2735451322001ND
2019-05-2935472011001ND
2019-08-2835494501001ND
2020-02-2635533874001ND
2020-02-2635533874001ND
2020-05-2836663734001ND
2020-11-2435595447001ND
2021-02-24891570001ND
2021-05-1390830000123.6 ppb
2021-08-1792808000132.3 ppb
2021-11-1735679581001ND
2022-02-2496667000115.7 ppb
2022-02-2496667000115.7 ppb
2022-05-2698639000141.4 ppb
2022-08-30100703000184.6 ppb
2022-11-29102641000130.0 ppb
2023-02-27104505000126.0 ppb
2023-05-16106294000130.1 ppb
2023-08-30109056000178.0 ppb
2023-11-29110425000141.7 ppb