Know Your Environment. Protect Your Health.

Monochloroacetic acid

CTWC - Unionville 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.

 

97

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.1000 ppb162ND - 1.000 ppb
20190.319 ppb166ND - 1.10 ppb
20200.113 ppb163ND - 0.600 ppb
20210.356 ppb178ND - 1.20 ppb
2022ND160ND
2023ND160ND

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
2018-01-16BZ73287HAA5ND
2018-01-16BZ73288HAA5ND
2018-01-16BZ73289HAA5ND
2018-01-16BZ73286HAA5ND
2018-04-27CA37381HAA5ND
2018-04-27CA37382HAA5ND
2018-04-27CA37383HAA5ND
2018-04-27CA37384HAA5ND
2018-07-24CA96734ND
2018-07-24CA96735ND
2018-07-24CA96736ND
2018-07-24CA96737ND
2018-10-02DBP 2005076660.600 ppb
2018-10-02DBP 200508020ND
2018-10-02DBP 200507667ND
2018-10-02DBP 2005076651.000 ppb
2019-01-08DBP 2005181301.10 ppb
2019-01-08DBP 2005181360.600 ppb
2019-01-08DBP 2005181390.800 ppb
2019-01-08DBP 200518143ND
2019-04-09DBP 2005278460.900 ppb
2019-04-09DBP 200527847ND
2019-04-09DBP 2005278480.800 ppb
2019-04-09DBP 200527849ND
2019-07-02DBP 200538987ND
2019-07-02DBP 2005389890.900 ppb
2019-07-02DBP 200538988ND
2019-07-02DBP 200538986ND
2019-10-08DBP 200552013ND
2019-10-08DBP 200552014ND
2019-10-08DBP 200552015ND
2019-10-08DBP 200552012ND
2020-01-16DBP 200563400ND
2020-01-16DBP 200563401ND
2020-01-16DBP 200563402ND
2020-01-16DBP 200563403ND
2020-04-16DBP 200572920ND
2020-04-16DBP 200572922ND
2020-04-16DBP 2005729180.600 ppb
2020-04-16DBP 200572917ND
2020-07-13DBP 200582481ND
2020-07-13DBP 200582482ND
2020-07-13DBP 2005824830.600 ppb
2020-07-14DBP 2005828410.600 ppb
2020-10-19DBP 200594469ND
2020-10-20DBP 200594847ND
2020-10-20DBP 200594848ND
2020-10-20DBP 200594849ND
2021-01-08DBP 200603413ND
2021-01-08DBP 200603410ND
2021-01-08DBP 200603411ND
2021-01-08DBP 200603412ND
2021-04-15DBP 200613658ND
2021-04-15DBP 2006136590.600 ppb
2021-04-15DBP 2006136600.900 ppb
2021-04-15DBP 200613661ND
2021-07-15DBP 2006251350.600 ppb
2021-07-15DBP 2006251361.20 ppb
2021-07-15DBP 2006251370.800 ppb
2021-07-15DBP 2006251380.700 ppb
2021-07-29DBP 2006266780.500 ppb
2021-10-11H300079421 3000794270.750 ppb
2021-10-11H300079423 300079431ND
2021-10-11H300079422 300079429ND
2021-10-11H300079420 300079425ND
2022-01-13CK15522ND
2022-01-13CK15523ND
2022-01-13CK15524ND
2022-01-13CK15525ND
2022-04-08CL06148ND
2022-04-08CL06149ND
2022-04-08CL06150ND
2022-04-08CL06151ND
2022-07-11CL75327ND
2022-07-11CL75330ND
2022-07-11CL75328ND
2022-07-11CL75329ND
2022-10-07CM58820ND
2022-10-07CM58821ND
2022-10-07CM58822ND
2022-10-07CM58823ND
2023-01-16CN24479ND
2023-01-16CN24480ND
2023-01-16CN24481ND
2023-01-16CN24482ND
2023-04-07CN80791ND
2023-04-07CN80793ND
2023-04-07CN80792ND
2023-04-07CN80790ND
2023-07-18CO53034ND
2023-07-18CO53035ND
2023-07-18CO53036ND
2023-07-18CO53037ND
2023-10-04CP17811ND
2023-10-04CP17812ND
2023-10-04CP17813ND
2023-10-04CP17814ND