Know Your Environment. Protect Your Health.

Monochloroacetic acid

Walnut Grove Utilities

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.

 

42

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND30ND
2020ND120ND
20211.00 ppb74ND - 2.70 ppb
2022ND80ND
2023ND80ND

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
2018-03-08282649-2018-DWND
2018-03-08282650-2018-DWND
2018-08-14292104-2018-DWND
2018-08-14292105-2018-DWND
2019-07-16309019-2019-DWND
2019-08-21310993-2019-DWND
2019-08-21310994-2019-DWND
2020-02-19320756-2020-DWND
2020-02-19320756-2020-DWND
2020-02-24320967-2020-DWND
2020-02-24320967-2020-DWND
2020-02-24320966-2020-DWND
2020-02-24320966-2020-DWND
2020-05-27325626-2020-DWND
2020-05-28325700-2020-DWND
2020-08-24331120-2020-DWND
2020-08-25331241-2020-DWND
2020-11-17335908-2020-DWND
2020-11-17335909-2020-DWND
2021-02-2573615770020.830 ppb
2021-02-2573615770011.70 ppb
2021-05-137371329001ND
2021-05-1373713270012.70 ppb
2021-08-1173841450011.80 ppb
2021-08-117384143001ND
2021-12-22810-11094-2ND
2022-02-22810-15826-1ND
2022-02-22810-15825-1ND
2022-05-16FWE0077-01ND
2022-05-16FWE0089-01ND
2022-08-09FWG0302-01ND
2022-08-10FWG0299-01ND
2022-11-14FWJ0190-01ND
2022-11-14FWJ0172-01ND
2023-02-15FXB0428-01ND
2023-02-15FXB0444-01ND
2023-05-31FXE0919-01ND
2023-05-31FXE0920-01ND
2023-08-15FXF0561-01ND
2023-08-15FXF0562-01ND
2023-11-1468353901ND
2023-11-1468354001ND