Know Your Environment. Protect Your Health.

Monochloroacetic acid

Wellington, City of

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
20181.84 ppb84ND - 7.80 ppb
20190.613 ppb82ND - 2.80 ppb
20200.775 ppb81ND - 6.20 ppb
20213.14 ppb84ND - 9.60 ppb
20221.08 ppb83ND - 3.40 ppb
20231.23 ppb83ND - 4.90 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
2018-03-199382272.10 ppb
2018-03-19938228ND
2018-06-189904882.20 ppb
2018-06-18990489ND
2018-09-251050230ND
2018-09-2510502317.80 ppb
2018-12-171093101ND
2018-12-1710931022.60 ppb
2019-03-111135278ND
2019-03-111135279ND
2019-06-251192644ND
2019-06-251192645ND
2019-09-241247802ND
2019-09-2412478032.10 ppb
2019-12-171291964ND
2019-12-1712919622.80 ppb
2020-03-301348309ND
2020-03-301348310ND
2020-06-231414844ND
2020-06-231414843ND
2020-09-2915191986.20 ppb
2020-09-291519199ND
2020-12-151713138ND
2020-12-151713137ND
2021-03-2118018548.70 ppb
2021-03-2318018533.60 ppb
2021-06-2218667989.60 ppb
2021-06-221866799ND
2021-11-012010333ND
2021-11-1620296403.20 ppb
2021-12-202077588ND
2021-12-202077587ND
2022-03-212220133ND
2022-03-212220134ND
2022-06-212284566ND
2022-06-212284565ND
2022-09-2023629723.40 ppb
2022-09-2023629713.20 ppb
2022-12-1924194972.00 ppb
2022-12-192419498ND
2023-03-202468945ND
2023-03-202468946ND
2023-06-202521492ND
2023-06-202521491ND
2023-09-2625832814.90 ppb
2023-09-262583282ND
2023-12-1226260832.30 ppb
2023-12-1226260842.60 ppb