Know Your Environment. Protect Your Health.

Monochloroacetic acid

City of Kirkland

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.

 

128

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.558 ppb165ND - 2.07 ppb
2019ND160ND
2020N/A00N/A
20210.957 ppb3215ND - 3.54 ppb
20220.867 ppb3211ND - 4.35 ppb
20230.445 ppb328ND - 2.09 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
2018-01-17ND
2018-01-17ND
2018-01-17ND
2018-01-17ND
2018-04-101.50 ppb
2018-04-10ND
2018-04-10ND
2018-04-10ND
2018-07-122.07 ppb
2018-07-12ND
2018-07-121.98 ppb
2018-07-121.50 ppb
2018-10-081.87 ppb
2018-10-08ND
2018-10-08ND
2018-10-08ND
2019-01-17ND
2019-01-17ND
2019-01-17ND
2019-01-17ND
2019-04-09ND
2019-04-09ND
2019-04-09ND
2019-04-09ND
2019-07-17ND
2019-07-17ND
2019-07-17ND
2019-07-17ND
2019-10-16ND
2019-10-16ND
2019-10-16ND
2019-10-16ND
2021-01-1340642741.87 ppb
2021-01-134064272ND
2021-01-134064273ND
2021-01-1340642751.85 ppb
2021-01-1340642772.00 ppb
2021-01-1340642782.12 ppb
2021-01-1340642761.90 ppb
2021-01-134064271ND
2021-04-1341016182.27 ppb
2021-04-1341016163.54 ppb
2021-04-134101611ND
2021-04-134101614ND
2021-04-1341016131.74 ppb
2021-04-134101612ND
2021-04-1341016152.45 ppb
2021-04-134101617ND
2021-07-144172278ND
2021-07-144172276ND
2021-07-144172271ND
2021-07-144172275ND
2021-07-144172272ND
2021-07-144172277ND
2021-07-1441722732.34 ppb
2021-07-1441722741.52 ppb
2021-10-1441956981.68 ppb
2021-10-1441956961.52 ppb
2021-10-144195695ND
2021-10-1441956971.77 ppb
2021-10-1441956932.06 ppb
2021-10-144195694ND
2021-10-144195692ND
2021-10-144195691ND
2022-01-114230028ND
2022-01-114230030ND
2022-01-114230029ND
2022-01-114230027ND
2022-01-114230032ND
2022-01-114230031ND
2022-01-114230025ND
2022-01-1142300261.53 ppb
2022-04-124270501ND
2022-04-1242704991.66 ppb
2022-04-124270503ND
2022-04-1242705051.60 ppb
2022-04-124270498ND
2022-04-1242705022.60 ppb
2022-04-1242705001.81 ppb
2022-04-1242705044.35 ppb
2022-07-1243102411.99 ppb
2022-07-1243102453.37 ppb
2022-07-1243102433.46 ppb
2022-07-124310240ND
2022-07-1243102463.08 ppb
2022-07-124310239ND
2022-07-1243102442.29 ppb
2022-07-124310242ND
2022-10-114361942ND
2022-10-114361940ND
2022-10-114361944ND
2022-10-114361943ND
2022-10-114361937ND
2022-10-114361941ND
2022-10-114361939ND
2022-10-114361938ND
2023-01-104397680ND
2023-01-104397678ND
2023-01-104397677ND
2023-01-104397679ND
2023-01-104397683ND
2023-01-104397681ND
2023-01-104397676ND
2023-01-104397682ND
2023-04-104442050ND
2023-04-104442048ND
2023-04-104442047ND
2023-04-104442051ND
2023-04-104442049ND
2023-04-104442046ND
2023-04-1044420451.50 ppb
2023-04-124442361ND
2023-07-1044827701.62 ppb
2023-07-104482774ND
2023-07-104482773ND
2023-07-104482775ND
2023-07-104482776ND
2023-07-104482769ND
2023-07-104482772ND
2023-07-1044827712.07 ppb
2023-10-0945293422.08 ppb
2023-10-094529340ND
2023-10-0945293381.55 ppb
2023-10-0945293372.09 ppb
2023-10-094529341ND
2023-10-0945293391.50 ppb
2023-10-094529335ND
2023-10-0945293361.82 ppb