Know Your Environment. Protect Your Health.

Monochloroacetic acid

Louisburg, City of

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.988 ppb83ND - 3.10 ppb
20190.713 ppb82ND - 3.20 ppb
20201.55 ppb84ND - 4.60 ppb
20212.80 ppb87ND - 6.90 ppb
20223.20 ppb882.60 ppb - 4.20 ppb
20232.29 ppb86ND - 4.40 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
2018-02-21907867ND
2018-02-21907868ND
2018-05-309784212.60 ppb
2018-05-309784253.10 ppb
2018-08-211029444ND
2018-08-2110294452.20 ppb
2018-11-131076734ND
2018-11-131076735ND
2019-02-251125836ND
2019-02-251125837ND
2019-05-2211576892.50 ppb
2019-05-221157690ND
2019-08-261229986ND
2019-08-2612299873.20 ppb
2019-11-201278221ND
2019-11-201278220ND
2020-02-031317709ND
2020-02-031317710ND
2020-05-2613881163.10 ppb
2020-05-2613881154.60 ppb
2020-08-191500576ND
2020-08-191500575ND
2020-11-3016874782.30 ppb
2020-11-3016874772.40 ppb
2021-02-0917695672.00 ppb
2021-02-0917695682.30 ppb
2021-05-2618475316.90 ppb
2021-05-261847534ND
2021-08-0919111482.10 ppb
2021-08-0919111472.80 ppb
2021-11-2920398263.30 ppb
2021-11-2920398253.00 ppb
2022-02-2221996164.20 ppb
2022-02-2221996152.90 ppb
2022-05-1622593882.90 ppb
2022-05-1622593893.00 ppb
2022-08-0923296032.90 ppb
2022-08-0923296043.60 ppb
2022-11-1623994812.60 ppb
2022-11-1623994823.50 ppb
2023-02-2124535012.00 ppb
2023-02-212453500ND
2023-05-2225044213.20 ppb
2023-05-2225044222.60 ppb
2023-08-2325631132.10 ppb
2023-08-232563112ND
2023-11-0726076994.00 ppb
2023-11-0726076984.40 ppb