Know Your Environment. Protect Your Health.

Monochloroacetic acid

Danbury Water Department

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.

 

168

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0938 ppb325ND - 0.700 ppb
20190.378 ppb3218ND - 1.000 ppb
20200.400 ppb3217ND - 1.50 ppb
20210.513 ppb1612ND - 1.20 ppb
2022ND240ND
2023ND320ND

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
2018-03-14211599GEND
2018-03-14211585GEND
2018-03-14211587GEND
2018-03-14211589GEND
2018-03-14211591GEND
2018-03-15211593GEND
2018-03-15211595GEND
2018-03-15211597GEND
2018-06-19215751GEND
2018-06-19215737GEND
2018-06-19215739GEND
2018-06-19215743GEND
2018-06-19215745GEND
2018-06-20215747GEND
2018-06-20215749GEND
2018-06-20215741GEND
2018-09-14DBP 200505484ND
2018-09-14DBP 2005054860.600 ppb
2018-09-14DBP 200505491ND
2018-09-14DBP 200505493ND
2018-09-14DBP 200505495ND
2018-09-14DBP 2005054970.600 ppb
2018-09-14DBP 200505499ND
2018-09-17DBP 200505658ND
2018-12-14DBP 200516093ND
2018-12-14DBP 200516094ND
2018-12-14DBP 200516095ND
2018-12-14DBP 200516096ND
2018-12-14DBP 2005160970.500 ppb
2018-12-14DBP 200516098ND
2018-12-14DBP 2005160990.600 ppb
2018-12-14DBP 2005161000.700 ppb
2019-03-14DBP 2005247600.500 ppb
2019-03-14DBP 200524761ND
2019-03-14DBP 200524762ND
2019-03-14DBP 2005247630.600 ppb
2019-03-14DBP 2005247640.600 ppb
2019-03-14DBP 2005247650.700 ppb
2019-03-14DBP 2005247660.800 ppb
2019-03-14DBP 2005247670.700 ppb
2019-06-20DBP 200537265ND
2019-06-20DBP 2005372660.500 ppb
2019-06-20DBP 2005372670.500 ppb
2019-06-20DBP 200537268ND
2019-06-20DBP 2005372690.700 ppb
2019-06-20DBP 2005372701.000 ppb
2019-06-20DBP 200537271ND
2019-06-20DBP 2005372720.600 ppb
2019-09-19DBP 200549612ND
2019-09-19DBP 2005496130.600 ppb
2019-09-19DBP 200549615ND
2019-09-19DBP 200549617ND
2019-09-19DBP 200549618ND
2019-10-11DBP 2005525030.700 ppb
2019-10-11DBP 2005525040.900 ppb
2019-10-11DBP 2005525051.000 ppb
2019-12-19DBP 200560926ND
2019-12-19DBP 200560927ND
2019-12-19DBP 200560929ND
2019-12-19DBP 2005609300.600 ppb
2019-12-19DBP 2005609310.600 ppb
2019-12-19DBP 200560932ND
2019-12-19DBP 200560934ND
2019-12-19DBP 2005609350.500 ppb
2020-03-19DBP 200569976ND
2020-03-19DBP 200569977ND
2020-03-19DBP 2005699780.600 ppb
2020-03-19DBP 200569979ND
2020-03-19DBP 2005699800.700 ppb
2020-03-19DBP 200569981ND
2020-03-19DBP 2005699820.800 ppb
2020-03-19DBP 2005699830.600 ppb
2020-06-18DBP 200579794ND
2020-06-18DBP 2005797950.600 ppb
2020-06-18DBP 2005797960.600 ppb
2020-06-18DBP 200579797ND
2020-06-18DBP 2005797980.700 ppb
2020-06-18DBP 2005797990.700 ppb
2020-06-18DBP 200579800ND
2020-06-18DBP 2005798010.800 ppb
2020-09-17DBP 200590661ND
2020-09-17DBP 2005906620.700 ppb
2020-09-17DBP 200590663ND
2020-09-17DBP 200590664ND
2020-09-17DBP 2005906650.800 ppb
2020-09-17DBP 2005906660.600 ppb
2020-09-17DBP 200590667ND
2020-09-17DBP 200590668ND
2020-12-18DBP 200601598ND
2020-12-18DBP 200601599ND
2020-12-18DBP 2006016000.600 ppb
2020-12-18DBP 200601601ND
2020-12-18DBP 2006016020.900 ppb
2020-12-18DBP 2006016030.800 ppb
2020-12-18DBP 2006016040.800 ppb
2020-12-18DBP 2006016051.50 ppb
2021-03-18DBP 2006103160.600 ppb
2021-03-18DBP 200610317ND
2021-03-18DBP 2006103180.500 ppb
2021-03-18DBP 2006103190.600 ppb
2021-03-18DBP 200610320ND
2021-03-18DBP 2006103210.800 ppb
2021-03-18DBP 2006103220.800 ppb
2021-03-18DBP 2006103230.500 ppb
2021-06-17DBP 200621341ND
2021-06-17DBP 2006213420.700 ppb
2021-06-17DBP 200621343ND
2021-06-17DBP 2006213440.600 ppb
2021-06-17DBP 2006213450.600 ppb
2021-06-17DBP 2006213460.700 ppb
2021-06-17DBP 2006213470.600 ppb
2021-06-17DBP 2006213481.20 ppb
2022-06-14288297ND
2022-06-14288299ND
2022-06-14288303ND
2022-06-14288305ND
2022-06-15288301ND
2022-06-15288291ND
2022-06-15288293ND
2022-06-15288295ND
2022-09-14296290ND
2022-09-15296292ND
2022-09-15296294ND
2022-09-15296296ND
2022-09-15296298ND
2022-09-15296300ND
2022-09-15296302ND
2022-09-15296308ND
2022-12-13303028ND
2022-12-13303031ND
2022-12-13303035ND
2022-12-13303037ND
2022-12-13303039ND
2022-12-14303033ND
2022-12-15303024ND
2022-12-15303026ND
2023-03-06307813ND
2023-03-07307811ND
2023-03-07307812ND
2023-03-07307817ND
2023-03-07307818ND
2023-03-07307814ND
2023-03-07307816ND
2023-03-08307815ND
2023-06-06N3F0423-01ND
2023-06-06N3F0423-03ND
2023-06-06N3F0423-06ND
2023-06-06N3F0423-08ND
2023-06-07N3F0423-07ND
2023-06-07N3F0423-04ND
2023-06-07N3F0423-02ND
2023-06-08N3F0423-05ND
2023-09-12CO99982ND
2023-09-12CO99983ND
2023-09-12CO99989ND
2023-09-13CO99986ND
2023-09-13CO99987ND
2023-09-13CO99988ND
2023-09-14CO99984ND
2023-09-14CO99985ND
2023-12-11CP68213ND
2023-12-12CP68214ND
2023-12-12CP68211ND
2023-12-12CP68212ND
2023-12-12CP68216ND
2023-12-12CP68217ND
2023-12-12CP68218ND
2023-12-13CP68215ND