Know Your Environment. Protect Your Health.

Monochloroacetic acid

Connecticut Water Company - Northern Region-Western 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.

 

193

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND320ND
20190.203 ppb328ND - 1.40 ppb
20200.121 ppb336ND - 1.000 ppb
20210.428 ppb3217ND - 1.10 ppb
20220.213 ppb323ND - 2.40 ppb
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
2018-02-01BZ83504HAA5ND
2018-02-01BZ83505HAA5ND
2018-02-01BZ83506HAA5ND
2018-02-01BZ83507HAA5ND
2018-02-01BZ83508HAA5ND
2018-02-01BZ83509HAA5ND
2018-02-01BZ83510HAA5ND
2018-02-21BZ93283HAA5ND
2018-05-03CA41161HAA5ND
2018-05-03CA41162HAA5ND
2018-05-03CA41163HAA5ND
2018-05-03CA41164HAA5ND
2018-05-03CA41165HAA5ND
2018-05-03CA41166HAA5ND
2018-05-03CA41167HAA5ND
2018-05-15CA48118HAA5ND
2018-08-02CB04020ND
2018-08-02CB04021ND
2018-08-02CB04022ND
2018-08-02CB04023ND
2018-08-02CB04024ND
2018-08-02CB04025ND
2018-08-02CB04026ND
2018-08-06CB05840ND
2018-11-01DBP 200511133ND
2018-11-01DBP 200511134ND
2018-11-01DBP 200511135ND
2018-11-01DBP 200511136ND
2018-11-01DBP 200511137ND
2018-11-01DBP 200511138ND
2018-11-01DBP 200511139ND
2018-11-05DBP 200511389ND
2019-02-07DBP 200521083ND
2019-02-07DBP 200521084ND
2019-02-07DBP 200521085ND
2019-02-07DBP 200521086ND
2019-02-07DBP 200521087ND
2019-02-07DBP 2005210880.500 ppb
2019-02-07DBP 200521089ND
2019-02-11DBP 200521256ND
2019-05-09DBP 200531575ND
2019-05-09DBP 2005315761.10 ppb
2019-05-09DBP 2005315771.40 ppb
2019-05-09DBP 2005315820.900 ppb
2019-05-09DBP 200531584ND
2019-05-09DBP 200531586ND
2019-05-09DBP 200531587ND
2019-05-13DBP 2005318370.600 ppb
2019-08-01DBP 200542722ND
2019-08-01DBP 200542723ND
2019-08-01DBP 2005427240.700 ppb
2019-08-01DBP 200542725ND
2019-08-01DBP 2005427260.600 ppb
2019-08-01DBP 200542727ND
2019-08-01DBP 200542728ND
2019-08-13DBP 2005447580.700 ppb
2019-11-07DBP 200555828ND
2019-11-07DBP 200555830ND
2019-11-07DBP 200555831ND
2019-11-07DBP 200555832ND
2019-11-07DBP 200555833ND
2019-11-07DBP 200555834ND
2019-11-07DBP 200555835ND
2019-11-18DBP 200557004ND
2020-01-06DBP 200561665ND
2020-02-06DBP 200565357ND
2020-02-06DBP 200565358ND
2020-02-06DBP 200565359ND
2020-02-06DBP 200565360ND
2020-02-06DBP 200565361ND
2020-02-06DBP 200565362ND
2020-02-07DBP 200565640ND
2020-02-07DBP 200565641ND
2020-05-07DBP 200575175ND
2020-05-07DBP 200575176ND
2020-05-07DBP 200575177ND
2020-05-07DBP 2005751710.600 ppb
2020-05-07DBP 200575173ND
2020-05-08DBP 2005751740.500 ppb
2020-05-08DBP 2005751720.600 ppb
2020-05-08DBP 2005751700.800 ppb
2020-08-06DBP 200585744ND
2020-08-06DBP 2005857501.000 ppb
2020-08-06DBP 200585753ND
2020-08-06DBP 200585754ND
2020-08-07DBP 200585755ND
2020-08-07DBP 2005857560.500 ppb
2020-08-07DBP 200585757ND
2020-08-07DBP 200585758ND
2020-11-05DBP 200597356ND
2020-11-05DBP 200597357ND
2020-11-05DBP 200597358ND
2020-11-05DBP 200597359ND
2020-11-05DBP 200597360ND
2020-11-05DBP 200597361ND
2020-11-12DBP 200598206ND
2020-11-12DBP 200598210ND
2021-02-11DBP 200606895ND
2021-02-11DBP 200606896ND
2021-02-11DBP 200606907ND
2021-02-12DBP 200606911ND
2021-02-16DBP 2006069121.10 ppb
2021-02-17DBP 2006071120.700 ppb
2021-02-22DBP 200607459ND
2021-02-23DBP 2006076450.700 ppb
2021-05-13DBP 2006172390.900 ppb
2021-05-14DBP 2006172361.000 ppb
2021-05-14DBP 2006172370.700 ppb
2021-05-14DBP 2006172380.600 ppb
2021-05-20DBP 2006183160.600 ppb
2021-05-20DBP 2006183170.600 ppb
2021-05-20DBP 2006183191.10 ppb
2021-05-20DBP 2006183211.10 ppb
2021-08-12DBP 200628756ND
2021-08-12DBP 2006287570.600 ppb
2021-08-12DBP 200628758ND
2021-08-12DBP 2006287590.800 ppb
2021-08-12DBP 2006287601.000 ppb
2021-08-12DBP 200628761ND
2021-08-25DBP 200629815ND
2021-08-25DBP 200629816ND
2021-11-04D300098348 300098356ND
2021-11-04D300098349 3000983580.600 ppb
2021-11-04D300098350 300098360ND
2021-11-04D300098351 3000983620.900 ppb
2021-11-04D300098352 3000983640.700 ppb
2021-11-05D300098353 300098366ND
2021-11-05D300098354 300098368ND
2021-11-05D300098355 300098370ND
2022-02-03CK29752ND
2022-02-03CK29753ND
2022-02-03CK29754ND
2022-02-03CK29755ND
2022-02-03CK29756ND
2022-02-03CK29757ND
2022-02-03CK29758ND
2022-02-04CK314892.10 ppb
2022-05-12CL31513ND
2022-05-12CL31514ND
2022-05-12CL31515ND
2022-05-12CL31516ND
2022-05-12CL31517ND
2022-05-13CL31518ND
2022-05-13CL31519ND
2022-05-13CL31520ND
2022-08-04CL98963ND
2022-08-04CL989642.40 ppb
2022-08-04CL98965ND
2022-08-05CL98966ND
2022-08-05CL98967ND
2022-08-05CL98968ND
2022-08-05CL989692.30 ppb
2022-08-05CL98970ND
2022-11-17CM90283ND
2022-11-17CM90284ND
2022-11-17CM90285ND
2022-11-17CM90286ND
2022-11-17CM90287ND
2022-11-17CM90288ND
2022-11-17CM90289ND
2022-11-18CM90290ND
2023-02-02CN37077ND
2023-02-02CN37078ND
2023-02-02CN37079ND
2023-02-02CN37080ND
2023-02-02CN37081ND
2023-02-02CN37082ND
2023-02-02CN37083ND
2023-02-02CN37084ND
2023-05-12CO06294ND
2023-05-12CO06295ND
2023-05-12CO06296ND
2023-05-12CO06297ND
2023-05-12CO06298ND
2023-05-12CO06299ND
2023-05-18CO09386ND
2023-05-18CO09387ND
2023-08-10CO73376ND
2023-08-10CO73377ND
2023-08-10CO73378ND
2023-08-11CO73379ND
2023-08-11CO73380ND
2023-08-11CO73381ND
2023-08-11CO73382ND
2023-08-11CO73383ND
2023-11-16CP50449ND
2023-11-16CP50450ND
2023-11-16CP50451ND
2023-11-16CP50452ND
2023-11-16CP50453ND
2023-11-16CP50454ND
2023-11-16CP50455ND
2023-11-17CP50456ND