Know Your Environment. Protect Your Health.

Monochloroacetic acid

Manchester 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.

 

193

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.897 ppb3214ND - 15.0 ppb
20190.462 ppb3215ND - 3.17 ppb
20200.625 ppb3312ND - 3.21 ppb
20210.389 ppb329ND - 1.90 ppb
20220.0316 ppb321ND - 1.01 ppb
20230.0831 ppb322ND - 1.52 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
2018-01-08AA82357-DBP2ND
2018-01-08AA82358-DBP2ND
2018-01-08AA82359-DBP20.600 ppb
2018-01-09AA82360-DBP2ND
2018-01-09AA82343-DBP2ND
2018-01-09AA82355-DBP22.10 ppb
2018-01-09AA82356-DBP20.800 ppb
2018-01-10AA82378-DBP2ND
2018-04-16AA83526-DBP20.800 ppb
2018-04-16AA83527-DBP2ND
2018-04-17AA83543-DBP20.700 ppb
2018-04-17AA83544-DBP2ND
2018-04-17AA83545-DBP20.600 ppb
2018-04-17AA83546-DBP20.600 ppb
2018-04-17AA83547-DBP2ND
2018-04-17AA83548-DBP21.30 ppb
2018-07-16AA84694-DBP2ND
2018-07-16AA84706-DBP2ND
2018-07-17AA84723-DBP2ND
2018-07-17AA84724-DBP2ND
2018-07-17AA84725-DBP2ND
2018-07-17AA84726-DBP2ND
2018-07-17AA84727-DBP2ND
2018-07-17AA84729-DBP2ND
2018-10-15AA85872-DBP2ND
2018-10-15AA85924-DBP20.800 ppb
2018-10-15AA85873-DBP20.900 ppb
2018-10-15AA85874-DBP21.000 ppb
2018-10-16AA85882-DBP20.700 ppb
2018-10-16AA85893-DBP22.80 ppb
2018-10-16AA85880-DBP2ND
2018-10-18AA85923-DBP215.0 ppb
2019-01-14AA86944-DBP20.900 ppb
2019-01-14AA86945-DBP20.600 ppb
2019-01-15AA86953-DBP20.700 ppb
2019-01-15AA86960-DBP20.800 ppb
2019-01-15AA86961-DBP20.800 ppb
2019-01-15AA86962-DBP21.20 ppb
2019-01-16AA86978-DBP20.800 ppb
2019-01-16AA86968-DBP20.500 ppb
2019-04-15AA88021-DBP2ND
2019-04-15AA88022-DBP2ND
2019-04-15AA88023-DBP2ND
2019-04-15AA88024-DBP20.598 ppb
2019-04-15AA88025-DBP20.693 ppb
2019-04-15AA88012-DBP2ND
2019-04-17AA88059-DBP20.534 ppb
2019-04-17AA88060-DBP2ND
2019-07-15AA89173-DBP2ND
2019-07-15AA89174-DBP2ND
2019-07-15AA89175-DBP21.20 ppb
2019-07-15AA89176-DBP2ND
2019-07-15AA89177-DBP21.10 ppb
2019-07-16AA89183-DBP2ND
2019-07-16AA89193-DBP2ND
2019-07-16AA89194-DBP21.20 ppb
2019-10-15AA90342-DBP2ND
2019-10-15AA90344-DBP23.17 ppb
2019-10-15AA90353-DBP2ND
2019-10-15AA90354-DBP2ND
2019-10-15AA90355-DBP2ND
2019-10-15AA90356-DBP2ND
2019-10-15AA90357-DBP2ND
2019-10-15AA90358-DBP2ND
2020-01-05AA91455-DBP2ND
2020-01-13AA91414-DBP21.19 ppb
2020-01-13AA91415-DBP22.05 ppb
2020-01-13AA91416-DBP2ND
2020-01-14AA91431-DBP2ND
2020-01-14AA91436-DBP2ND
2020-01-15AA91452-DBP2ND
2020-01-23AA91576-DBP21.000 ppb
2020-02-05AA91702-DBP2ND
2020-04-14AA92514-DBP2ND
2020-04-14AA92515-DBP2ND
2020-04-14AA92517-DBP2ND
2020-04-14AA92529-DBP2ND
2020-04-14AA92530-DBP2ND
2020-04-14AA92531-DBP2ND
2020-04-14AA92532-DBP2ND
2020-04-15AA92551-DBP2ND
2020-07-14AA93738-DBP21.01 ppb
2020-07-14AA93739-DBP21.46 ppb
2020-07-14AA93741-DBP21.08 ppb
2020-07-14AA93734-DBP2ND
2020-07-14AA93740-DBP2ND
2020-07-15AA93758-DBP2ND
2020-07-22AA93869-DBP2ND
2020-07-28AA93953-DBP2ND
2020-10-05AA95052-DBP21.17 ppb
2020-10-05AA95050-DBP23.21 ppb
2020-10-05AA95051-DBP2ND
2020-10-05AA95053-DBP21.90 ppb
2020-10-05AA95054-DBP22.41 ppb
2020-10-06AA95060-DBP21.74 ppb
2020-10-06AA95062-DBP22.39 ppb
2020-10-07AA95096-DBP2ND
2021-01-12210112-2-02 HAAND
2021-01-12210112-5-01HAAND
2021-01-12210112-5-02HAA1.37 ppb
2021-01-13210113-2-02 HAAND
2021-01-13210113-4-01HAAND
2021-01-13210113-4-02HAAND
2021-01-14210114-4-01HAAND
2021-01-14210114-4-02HAAND
2021-04-05210405-4-01HAA1.68 ppb
2021-04-05210405-4-02HAAND
2021-04-06210406-4-01HAAND
2021-04-06210406-4-02HAAND
2021-04-06210406-4-03HAAND
2021-04-06210406-4-04HAAND
2021-04-07210407-5-01HAAND
2021-04-09210409-3-01HAA1.23 ppb
2021-07-13210713-4-01HAA1.17 ppb
2021-07-13210713-4-02HAAND
2021-07-13210713-4-03HAA1.90 ppb
2021-07-13210713-4-04HAA1.28 ppb
2021-07-13210713-4-05HAAND
2021-07-13210713-4-06HAAND
2021-07-13210713-4-07HAAND
2021-07-14210714-1-06 HAAND
2021-10-05211005-4-01HAAND
2021-10-05211005-4-02HAA1.28 ppb
2021-10-05211005-4-03HAAND
2021-10-06211006-4-01HAAND
2021-10-06211006-4-02HAAND
2021-10-06211006-4-03HAA1.26 ppb
2021-10-06211006-4-04HAA1.29 ppb
2021-10-07211007-4-01HAAND
2022-01-10220110-4-01HAAND
2022-01-10220110-4-02HAAND
2022-01-11220111-4-01HAAND
2022-01-11220111-4-02HAAND
2022-01-11220111-4-03HAAND
2022-01-11220111-4-04HAAND
2022-01-11220111-4-05HAAND
2022-01-11220111-4-06HAAND
2022-04-05220405-2-02 HAAND
2022-04-05220405-4-01HAAND
2022-04-05220405-4-02HAA1.01 ppb
2022-04-05220405-4-03HAAND
2022-04-05220405-4-04HAAND
2022-04-05220405-4-05HAAND
2022-04-05220405-4-06HAAND
2022-04-05220405-4-07HAAND
2022-07-12220712-5-01HAAND
2022-07-12220712-5-03HAAND
2022-07-12220712-5-04HAAND
2022-07-12220712-5-05HAAND
2022-07-12220712-5-06HAAND
2022-07-12220712-5-07HAAND
2022-07-12220712-5-08HAAND
2022-07-20220720-4-01HAAND
2022-10-04221004-4-01HAAND
2022-10-04221004-4-02HAAND
2022-10-04221004-4-03HAAND
2022-10-04221004-4-04HAAND
2022-10-04221004-4-05HAAND
2022-10-04221004-4-06HAAND
2022-10-04221004-4-07HAAND
2022-10-05221005-5-01HAAND
2023-01-09230109-5-01HAAND
2023-01-09230109-5-02HAAND
2023-01-10230110-5-01HAAND
2023-01-10230110-5-02HAAND
2023-01-10230110-5-03HAAND
2023-01-10230110-5-04HAAND
2023-01-10230110-5-05HAAND
2023-01-12230112-4-01HAAND
2023-04-11230411-8-01HAAND
2023-04-11230413-4-01HAAND
2023-04-11230413-4-02HAA1.14 ppb
2023-04-12230414-3-01HAAND
2023-04-12230414-3-02HAAND
2023-04-12230414-3-03HAAND
2023-04-12230414-3-04HAAND
2023-04-13230413-4-03HAAND
2023-07-10230710-5-01HAAND
2023-07-10230710-5-02HAAND
2023-07-11230711-4-01HAAND
2023-07-11230711-4-02HAAND
2023-07-11230711-4-03HAAND
2023-07-11230711-4-04HAAND
2023-07-11230711-4-05HAAND
2023-07-11230711-4-06HAAND
2023-10-10231010-5-01HAAND
2023-10-10231010-5-02HAA1.52 ppb
2023-10-10231010-5-03HAAND
2023-10-10231010-5-04HAAND
2023-10-11231011-4-01HAAND
2023-10-11231011-4-02HAAND
2023-10-11231011-4-03HAAND
2023-10-11231011-4-04HAAND