Know Your Environment. Protect Your Health.

Monochloroacetic acid

City of Trinidad

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
20181.93 ppb43ND - 4.00 ppb
2019ND40ND
20201.000 ppb41ND - 4.00 ppb
2021ND40ND
2022ND40ND
20230.825 ppb41ND - 3.30 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
2018-02-23Q18077690012.00 ppb
2018-05-31Q18217750021.70 ppb
2018-09-14Q1837127001ND
2018-12-10Q18502760074.00 ppb
2019-03-04Q1908970011ND
2019-06-13Q1935697001ND
2019-09-10Q1963305001ND
2019-11-07Q1976145001ND
2020-03-18Q2011900008ND
2020-04-23Q2016171001ND
2020-09-24Q20378590014.00 ppb
2020-11-10Q2044163001ND
2021-02-04Q2103564002ND
2021-04-15Q2109768008ND
2021-08-26Q2123341001ND
2021-12-15Q2135522001ND
2022-03-09Q2208174001ND
2022-05-16Q2214448012ND
2022-09-19Q2227940001ND
2022-11-04Q2233513001ND
2023-02-27Q2307801008ND
2023-05-11Q2318007001ND
2023-08-28Q2336744001ND
2023-11-20Q23497870013.30 ppb