Know Your Environment. Protect Your Health.

Monochloroacetic acid

Southwest Avoyelles Water 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.

 

64

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.681 ppb168ND - 1.70 ppb
20191.23 ppb1610ND - 2.90 ppb
2020ND80ND
20210.613 ppb84ND - 1.30 ppb
20222.07 ppb82ND - 9.14 ppb
20230.188 ppb81ND - 1.50 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
2018-03-05353784700011.20 ppb
2018-03-05353784700021.60 ppb
2018-03-05353784700021.60 ppb
2018-03-05353784700011.20 ppb
2018-06-19353994750021.70 ppb
2018-06-19353994750021.70 ppb
2018-06-2635400824001ND
2018-06-2635400824001ND
2018-09-0435416191001ND
2018-09-0435416191002ND
2018-09-0435416191001ND
2018-09-0435416191002ND
2018-12-1035436928001ND
2018-12-10354369280020.950 ppb
2018-12-10354369280020.950 ppb
2018-12-1035436928001ND
2019-03-11354552900011.70 ppb
2019-03-11354552900021.50 ppb
2019-03-11354552900011.70 ppb
2019-03-11354552900021.50 ppb
2019-06-0335473657001ND
2019-06-0335473657002ND
2019-06-0335473657001ND
2019-06-0335473657002ND
2019-09-03354950240012.80 ppb
2019-09-03354950240022.90 ppb
2019-09-03354950240012.80 ppb
2019-09-03354950240022.90 ppb
2019-12-02355165960010.960 ppb
2019-12-0235516596002ND
2019-12-0235516596002ND
2019-12-02355165960010.960 ppb
2020-03-0235535328002ND
2020-03-0235535328001ND
2020-06-1035556238001ND
2020-06-1035556238002ND
2020-09-1535578139001ND
2020-09-1535578139002ND
2020-12-0235596508001ND
2020-12-0235596508002ND
2021-03-0435616955001ND
2021-03-0435616955002ND
2021-06-08356401060011.20 ppb
2021-06-08356401060021.20 ppb
2021-09-08356631260011.20 ppb
2021-09-08356631260021.30 ppb
2021-12-1335684669001ND
2021-12-1335684669002ND
2022-03-1435704712002ND
2022-03-1435704712001ND
2022-06-20B2202907-0027.43 ppb
2022-06-20B2202907-0019.14 ppb
2022-09-1235746815001ND
2022-09-1235746815002ND
2022-12-1235767008001ND
2022-12-1235767008002ND
2023-03-21357877960011.50 ppb
2023-03-2135787796002ND
2023-06-1235806291001ND
2023-06-1235806291002ND
2023-09-2535830743001ND
2023-09-2535830743002ND
2023-12-1135848155001ND
2023-12-1135848155002ND