Know Your Environment. Protect Your Health.

Monochloroacetic acid

Williams Water Supply

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
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
2022ND40ND
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
2018-02-06OE622249ND
2018-05-01OE652868ND
2018-08-07OE695222ND
2018-11-07OE738065ND
2019-02-04OE767355ND
2019-05-06OE803980ND
2019-08-05OE845462ND
2019-11-11OE892259ND
2020-02-03OE924202ND
2020-05-04OE993387ND
2020-08-03OE1156353ND
2020-11-03OE1396829ND
2021-02-01OE1573212ND
2021-05-03OE1683169ND
2021-08-02OE1778892ND
2021-11-01OE1915530ND
2022-02-01OE2035034ND
2022-06-15OE2118487ND
2022-08-09OE2153453ND
2022-11-01OE2200810ND
2023-02-01OE2237445ND
2023-05-08OE2277392ND
2023-08-01OE2317280ND
2023-11-01OE2358526ND