Know Your Environment. Protect Your Health.

Monochloroacetic acid

U.s.n., San Nicolas Island

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
20205.00 ppb115.00 ppb
2021ND40ND
20222.00 ppb41ND - 8.00 ppb
2023ND40ND

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
2018-01-09CA5610702_DST_015-201801090530ND
2018-09-10CA5610702_DST_015-201809101730ND
2019-01-15CA5610702_DST_015-201901150345ND
2019-09-03CA5610702_DST_015-201909030500ND
2020-01-14CA5610702_DST_015-2020011406005.00 ppb
2021-01-26CA5610702_DST_015-202101260940ND
2021-04-06CA5610702_DST_015-202104060430ND
2021-07-06CA5610702_DST_015-202107060500ND
2021-10-05CA5610702_DST_015-202110050530ND
2022-01-04CA5610702_DST_015-202201040400ND
2022-04-05CA5610702_DST_015-202204050530ND
2022-07-06CA5610702_DST_015-2022070605008.00 ppb
2022-10-04CA5610702_DST_015-202210040530ND
2023-01-12CA5610702_DST_015-202301120400ND
2023-04-04CA5610702_DST_015-202304040400ND
2023-07-05CA5610702_DST_015-202307050700ND
2023-10-03CA5610702_DST_015-202310030600ND