Know Your Environment. Protect Your Health.

Monochloroacetic acid

Northcrest Water System

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
20180.925 ppb42ND - 2.40 ppb
20190.375 ppb41ND - 1.50 ppb
20200.275 ppb41ND - 1.10 ppb
20210.875 ppb41ND - 3.50 ppb
20221.000 ppb41ND - 4.00 ppb
20232.23 ppb441.60 ppb - 3.20 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
2018-02-01Q1804165002ND
2018-04-18Q18159320012.40 ppb
2018-07-18Q1828599001ND
2018-10-26Q18433000011.30 ppb
2019-02-26Q19083690021.50 ppb
2019-04-30Q1917513001ND
2019-09-24Q1968209001ND
2019-11-20Q1977648001ND
2020-02-11Q2005445001ND
2020-05-28Q20211990011.10 ppb
2020-08-24Q2033899002ND
2020-10-22Q2041243001ND
2021-01-20Q2101387001ND
2021-04-12Q2109264001ND
2021-07-13Q21182600013.50 ppb
2021-10-04Q2127186001ND
2022-03-16Q2208896001ND
2022-05-04Q2213456001ND
2022-08-24Q2225389001ND
2022-11-16Q22344960024.00 ppb
2023-02-09Q23051950011.60 ppb
2023-06-06Q23214570012.40 ppb
2023-08-22Q23354280023.20 ppb
2023-11-02Q23470820011.70 ppb