Know Your Environment. Protect Your Health.

Monochloroacetic acid

C R C Water Supply Corporation

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.

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20184.73 ppb442.40 ppb - 7.30 ppb
20190.925 ppb41ND - 3.70 ppb
20200.325 ppb41ND - 1.30 ppb
20210.588 ppb81ND - 4.70 ppb
20225.98 ppb83ND - 19.6 ppb
20237.13 ppb86ND - 19.2 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
2018-02-23Q18077730015.00 ppb
2018-05-25Q18212780017.30 ppb
2018-09-11Q18358810014.20 ppb
2018-12-13Q18514830012.40 ppb
2019-03-13Q19106240103.70 ppb
2019-06-25Q1939456001ND
2019-09-11Q1964578001ND
2019-12-11Q1979780001ND
2020-03-18Q2011901001ND
2020-06-23Q20250890011.30 ppb
2020-09-16Q2037084001ND
2020-12-08Q2049121001ND
2021-03-11Q2106478011ND
2021-03-11Q2106478012ND
2021-06-17Q2115929001ND
2021-06-17Q2115929002ND
2021-09-15Q21253950014.70 ppb
2021-09-15Q2125395002ND
2021-12-15Q2135519001ND
2021-12-15Q2135519002ND
2022-03-24Q2209481001ND
2022-03-24Q2209481002ND
2022-06-20Q2216943016ND
2022-06-20Q22169430179.50 ppb
2022-09-19Q2227935001ND
2022-09-19Q2227935002ND
2022-12-08Q223698900218.7 ppb
2022-12-08Q223698900119.6 ppb
2023-02-28Q2307934001ND
2023-02-28Q2307934002ND
2023-05-11Q23180050098.70 ppb
2023-05-11Q23180050109.90 ppb
2023-09-20Q234083200110.1 ppb
2023-09-20Q234083200219.2 ppb
2023-12-01Q23513590014.40 ppb
2023-12-01Q23513590024.70 ppb