Know Your Environment. Protect Your Health.

Monochloroacetic acid

Pittsburgh Water & Sewer Authority

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.

 

255

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.848 ppb124ND - 3.93 ppb
2019ND480ND
20200.106 ppb481ND - 5.11 ppb
20210.468 ppb5118ND - 1.88 ppb
20220.679 ppb4816ND - 3.62 ppb
20230.159 ppb486ND - 1.44 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
2018-11-0118K0426-042.02 ppb
2018-11-0118K0426-062.09 ppb
2018-11-0118K0426-03ND
2018-11-0118K0426-01ND
2018-11-0118K0426-02ND
2018-11-0118K0426-052.13 ppb
2018-11-0218K0627-02ND
2018-11-0218K0627-053.93 ppb
2018-11-0218K0627-01ND
2018-11-0218K0627-03ND
2018-11-0218K0627-06ND
2018-11-0218K0627-04ND
2019-02-0119B0579-01ND
2019-02-0119B0579-02ND
2019-02-0119B0579-03ND
2019-02-0119B0579-04ND
2019-02-0119B0579-05ND
2019-02-0119B0579-06ND
2019-02-0119B0579-07ND
2019-02-0119B0579-08ND
2019-02-0119B0579-09ND
2019-02-0119B0579-10ND
2019-02-0119B0579-11ND
2019-02-0119B0579-12ND
2019-05-0119E0821-02ND
2019-05-0119E0821-06ND
2019-05-0119E0821-03ND
2019-05-0119E0821-01ND
2019-05-0119E0821-05ND
2019-05-0119E0821-04ND
2019-05-0219E0870-03ND
2019-05-0219E0870-02ND
2019-05-0219E0870-01ND
2019-05-0319E1121-02ND
2019-05-0319E1121-01ND
2019-05-0319E1121-03ND
2019-08-0119H1062-03ND
2019-08-0119H1062-06ND
2019-08-0119H1062-02ND
2019-08-0119H1062-01ND
2019-08-0119H1062-04ND
2019-08-0119H1062-05ND
2019-08-0219H1096-02ND
2019-08-0219H1096-05ND
2019-08-0219H1096-01ND
2019-08-0219H1096-04ND
2019-08-0219H1096-06ND
2019-08-0219H1096-03ND
2019-11-0119K0944-03ND
2019-11-0119K0946-02ND
2019-11-0119K0944-04ND
2019-11-0119K0944-06ND
2019-11-0119K0944-01ND
2019-11-0119K0946-04ND
2019-11-0119K0944-02ND
2019-11-0119K0946-01ND
2019-11-0119K0946-06ND
2019-11-0119K0946-05ND
2019-11-0119K0946-03ND
2019-11-0119K0944-05ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-07-30ND
2020-07-30ND
2020-07-31ND
2020-07-31ND
2020-07-31ND
2020-07-31ND
2020-07-31ND
2020-07-31ND
2020-08-03ND
2020-08-03ND
2020-08-03ND
2020-08-03ND
2020-11-02ND
2020-11-02ND
2020-11-02ND
2020-11-02ND
2020-11-02ND
2020-11-02ND
2020-11-02ND
2020-11-02ND
2020-11-02ND
2020-11-02ND
2020-11-02ND
2020-11-025.11 ppb
2021-02-01ND
2021-02-01ND
2021-02-01ND
2021-02-01ND
2021-02-01ND
2021-02-02ND
2021-02-02ND
2021-02-02ND
2021-02-02ND
2021-02-02ND
2021-02-02ND
2021-02-02ND
2021-04-29ND
2021-04-29ND
2021-04-29ND
2021-04-29ND
2021-04-291.35 ppb
2021-04-29ND
2021-04-29ND
2021-04-301.20 ppb
2021-04-301.24 ppb
2021-04-301.33 ppb
2021-04-301.17 ppb
2021-04-301.20 ppb
2021-07-30ND
2021-07-30ND
2021-07-301.03 ppb
2021-07-301.000 ppb
2021-08-02ND
2021-08-02ND
2021-08-02ND
2021-08-021.88 ppb
2021-08-02ND
2021-08-021.51 ppb
2021-08-02ND
2021-08-03ND
2021-08-13ND
2021-11-011.64 ppb
2021-11-011.54 ppb
2021-11-011.49 ppb
2021-11-01ND
2021-11-01ND
2021-11-021.28 ppb
2021-11-02ND
2021-11-02ND
2021-11-021.25 ppb
2021-11-02ND
2021-11-021.13 ppb
2021-11-021.56 ppb
2021-11-05ND
2021-11-051.05 ppb
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-03ND
2022-08-012.55 ppb
2022-08-01ND
2022-08-013.60 ppb
2022-08-011.37 ppb
2022-08-012.89 ppb
2022-08-012.57 ppb
2022-08-01ND
2022-08-013.58 ppb
2022-08-012.02 ppb
2022-08-013.62 ppb
2022-08-22ND
2022-08-231.45 ppb
2022-11-011.41 ppb
2022-11-01ND
2022-11-01ND
2022-11-011.52 ppb
2022-11-011.27 ppb
2022-11-01ND
2022-11-011.38 ppb
2022-11-01ND
2022-11-011.05 ppb
2022-11-011.02 ppb
2022-11-01ND
2022-11-011.28 ppb
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-08-011.44 ppb
2023-08-01ND
2023-08-01ND
2023-08-01ND
2023-08-01ND
2023-08-011.32 ppb
2023-08-01ND
2023-08-01ND
2023-08-01ND
2023-08-01ND
2023-08-01ND
2023-08-01ND
2023-10-30ND
2023-10-30ND
2023-10-30ND
2023-10-30ND
2023-10-301.20 ppb
2023-10-301.33 ppb
2023-10-31ND
2023-10-311.24 ppb
2023-10-311.09 ppb
2023-10-31ND
2023-10-31ND
2023-10-31ND