Know Your Environment. Protect Your Health.

Monochloroacetic acid

Gateway

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.

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
20204.46 ppb993.80 ppb - 5.10 ppb
20213.72 ppb662.30 ppb - 5.00 ppb
20221.90 ppb95ND - 5.30 ppb
2023ND120ND

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
2020-05-13CA1300018_DST_902-2020051310024.40 ppb
2020-05-13CA1300018_DST_901-2020051309223.80 ppb
2020-05-13CA1300018_DST_903-2020051309504.10 ppb
2020-08-12CA1300018_DST_903-2020081209205.00 ppb
2020-08-12CA1300018_DST_901-2020081208315.00 ppb
2020-08-12CA1300018_DST_902-2020081209154.40 ppb
2020-11-12CA1300018_DST_903-2020111208304.00 ppb
2020-11-12CA1300018_DST_902-2020111208475.10 ppb
2020-11-12CA1300018_DST_901-2020111207114.30 ppb
2021-02-17CA1300018_DST_903-2021021709232.30 ppb
2021-02-17CA1300018_DST_901-2021021708393.00 ppb
2021-02-17CA1300018_DST_902-2021021709373.10 ppb
2021-05-19CA1300018_DST_902-2021051908505.00 ppb
2021-05-19CA1300018_DST_903-2021051908303.90 ppb
2021-05-19CA1300018_DST_901-2021051907555.00 ppb
2022-02-09CA1300018_DST_901-202202090752ND
2022-02-09CA1300018_DST_902-202202090930ND
2022-02-09CA1300018_DST_903-202202090915ND
2022-08-10CA1300018_DST_903-202208101040ND
2022-08-10CA1300018_DST_901-2022081009154.10 ppb
2022-08-10CA1300018_DST_902-2022081010205.30 ppb
2022-11-09CA1300018_DST_903-2022110909152.80 ppb
2022-11-09CA1300018_DST_901-2022110908112.50 ppb
2022-11-09CA1300018_DST_902-2022110909322.40 ppb
2023-02-14CA1300018_DST_901-202302140821ND
2023-02-14CA1300018_DST_902-202302141030ND
2023-02-14CA1300018_DST_903-202302141005ND
2023-05-10CA1300018_DST_901-202305100930ND
2023-05-10CA1300018_DST_902-202305101050ND
2023-05-10CA1300018_DST_903-202305101058ND
2023-08-15CA1300018_DST_902-202308151005ND
2023-08-15CA1300018_DST_901-202308150926ND
2023-08-15CA1300018_DST_903-202308151046ND
2023-11-15CA1300018_DST_903-202311151012ND
2023-11-15CA1300018_DST_902-202311151029ND
2023-11-15CA1300018_DST_901-202311150828ND