Know Your Environment. Protect Your Health.

Monochloroacetic acid

Chimney Hill Municipal Utility District

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.

 

46

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
20191.70 ppb82ND - 8.80 ppb
20203.70 ppb84ND - 18.6 ppb
2021ND80ND
2022ND60ND
20236.40 ppb83ND - 19.3 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
2018-02-05AE12175ND
2018-02-05AE12165ND
2018-04-17AE22758ND
2018-04-17AE22755ND
2018-08-22AE38075ND
2018-08-22AE38076ND
2018-12-04AE47769ND
2018-12-04AE47773ND
2019-02-13AE54293ND
2019-02-13AE54294ND
2019-05-22AE67615ND
2019-05-22AE67616ND
2019-09-24AE84619ND
2019-09-24AE84620ND
2019-12-03AE910044.80 ppb
2019-12-03AE910058.80 ppb
2020-02-06AE97305ND
2020-02-06AE97306ND
2020-04-29AF0868618.6 ppb
2020-04-29AF086874.80 ppb
2020-09-16AF275283.20 ppb
2020-09-16AF27530ND
2020-10-29AF326033.00 ppb
2020-10-29AF32598ND
2021-02-09AF43243ND
2021-02-09AF43245ND
2021-04-20AF50713ND
2021-04-20AF50714ND
2021-08-11AF65858ND
2021-08-11AF65860ND
2021-11-12AF76589ND
2021-11-12AF76591ND
2022-02-14AF84550ND
2022-02-14AF84555ND
2022-05-19AF97691ND
2022-05-19AF97693ND
2022-07-29AG07038ND
2022-07-29AG07039ND
2023-02-02AG27141ND
2023-02-02AG2715015.6 ppb
2023-04-27AG38396ND
2023-04-27AG38397ND
2023-08-24AG5395119.3 ppb
2023-08-24AG5395616.3 ppb
2023-10-05AG58587ND
2023-10-05AG58592ND