Know Your Environment. Protect Your Health.

Monochloroacetic acid

Treasure 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.

 

29

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
2020ND80ND
2021ND80ND
20220.418 ppb51ND - 2.09 ppb
20232.12 ppb86ND - 4.20 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
2020-01-07CA3810702_DST_802-202001071054ND
2020-01-07CA3810702_DST_801-202001071016ND
2020-04-07CA3810702_DST_802-202004070731ND
2020-04-07CA3810702_DST_801-202004070836ND
2020-07-07CA3810702_DST_801-202007071027ND
2020-07-07CA3810702_DST_802-202007070849ND
2020-10-06CA3810702_DST_802-202010060917ND
2020-10-06CA3810702_DST_801-202010061106ND
2021-01-05CA3810702_DST_802-202101050722ND
2021-01-05CA3810702_DST_801-202101050805ND
2021-04-06CA3810702_DST_802-202104060729ND
2021-04-06CA3810702_DST_801-202104060802ND
2021-07-06CA3810702_DST_802-202107060824ND
2021-07-06CA3810702_DST_801-202107061006ND
2021-10-05CA3810702_DST_802-202110050737ND
2021-10-05CA3810702_DST_801-202110050828ND
2022-01-05CA3810702_DST_802-202201051015ND
2022-01-05CA3810702_DST_801-202201051025ND
2022-04-05CA3810702_DST_802-202204050813ND
2022-10-04CA3810702_DST_801-2022100407452.09 ppb
2022-10-04CA3810702_DST_802-202210040725ND
2023-01-03CA3810702_DST_801-202301030925ND
2023-01-03CA3810702_DST_802-2023010308102.00 ppb
2023-04-04CA3810702_DST_801-2023040411162.20 ppb
2023-04-04CA3810702_DST_802-2023040408552.40 ppb
2023-07-04CA3810702_DST_801-2023070409454.10 ppb
2023-07-04CA3810702_DST_802-2023070408434.20 ppb
2023-10-03CA3810702_DST_801-2023100309452.04 ppb
2023-10-03CA3810702_DST_802-202310030843ND