Know Your Environment. Protect Your Health.

Monochloroacetic acid

City of Alto

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
20181.21 ppb86ND - 2.20 ppb
2019ND80ND
20200.350 ppb82ND - 1.80 ppb
20210.538 ppb83ND - 1.50 ppb
2022ND80ND
20233.00 ppb881.60 ppb - 4.60 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
2018-02-22Q1807634002ND
2018-02-22Q1807634001ND
2018-05-29Q18213020101.20 ppb
2018-05-29Q18213020011.80 ppb
2018-08-16Q18329680011.80 ppb
2018-08-16Q18329680022.20 ppb
2018-10-30Q18438790011.000 ppb
2018-10-30Q18438790021.70 ppb
2019-03-20Q1911720004ND
2019-03-20Q1911720006ND
2019-05-20Q1927027006ND
2019-05-20Q1927027007ND
2019-09-19Q1968024002ND
2019-09-19Q1968024001ND
2019-12-04Q1979194001ND
2019-12-04Q1979194002ND
2020-03-23Q2012154001ND
2020-03-23Q20121540021.80 ppb
2020-05-27Q2021186001ND
2020-05-27Q2021186002ND
2020-08-05Q2031226001ND
2020-08-05Q2031226002ND
2020-10-22Q20411980091.000 ppb
2020-10-22Q2041198010ND
2021-03-11Q21064640011.40 ppb
2021-03-11Q2106464002ND
2021-05-11Q2112089001ND
2021-05-11Q2112089002ND
2021-08-09Q21209490011.50 ppb
2021-08-09Q21209490021.40 ppb
2021-10-14Q2128845014ND
2021-10-14Q2128845015ND
2022-03-03Q2207391010ND
2022-03-03Q2207391011ND
2022-05-16Q2214438001ND
2022-05-16Q2214438002ND
2022-08-04Q2222347001ND
2022-08-04Q2222347002ND
2022-10-10Q2230465001ND
2022-10-10Q2230465002ND
2023-01-10Q23012180012.20 ppb
2023-01-10Q23012180022.60 ppb
2023-04-20Q23148800094.60 ppb
2023-04-20Q23148800101.60 ppb
2023-07-10Q23265450012.40 ppb
2023-07-10Q23265450023.60 ppb
2023-10-24Q23457420013.60 ppb
2023-10-24Q23457420023.40 ppb