Know Your Environment. Protect Your Health.

Monochloroacetic acid

Batts-lapile Water Association

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND80ND
20200.375 ppb81ND - 3.00 ppb
20211.13 ppb83ND - 3.60 ppb
20221.06 ppb82ND - 4.40 ppb
2023ND80ND

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
2018-03-1218073002101ND
2018-03-1218073002001ND
2018-06-1118165004501ND
2018-06-1118165004601ND
2018-09-1118256003801ND
2018-09-1118256003901ND
2018-12-0318340004101ND
2018-12-0318340004201ND
2019-03-1219073002201ND
2019-03-1219073002101ND
2019-06-1719171005901ND
2019-06-1719171006001ND
2019-09-0919254002501ND
2019-09-0919254002401ND
2019-12-0319339000901ND
2019-12-0319339001001ND
2020-03-0220064001301ND
2020-03-0220064001401ND
2020-06-29201830022013.00 ppb
2020-06-2920183002101ND
2020-09-0720254000901ND
2020-09-0720254001001ND
2020-11-3020338002701ND
2020-11-3020338002601ND
2021-03-31210910015013.10 ppb
2021-03-31210910014013.60 ppb
2021-06-0821161004201ND
2021-06-0821161004301ND
2021-09-0821252002201ND
2021-09-08212520021012.30 ppb
2021-12-0721342003501ND
2021-12-0721342003601ND
2022-03-02O195924-HAA-14.10 ppb
2022-03-02O195925-HAA-14.40 ppb
2022-06-07O198867-HAA-1ND
2022-06-07O198866-HAA-1ND
2022-09-27O202228-HAA-1ND
2022-09-27O202227-HAA-1ND
2022-12-06O204284-HAA-1ND
2022-12-06O204285-HAA-1ND
2023-03-07O206928-HAA-1ND
2023-03-07O206927-HAA-1ND
2023-06-14O210002-HAA-1ND
2023-06-14O210001-HAA-1ND
2023-09-06O211829-HAA-1ND
2023-09-06O211828-HAA-1ND
2023-12-05O214317-HAA-1ND
2023-12-05O214316-HAA-1ND