Know Your Environment. Protect Your Health.

Monochloroacetic acid

City of Bothell Water

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.

 

80

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.554 ppb164ND - 2.94 ppb
20190.610 ppb165ND - 2.77 ppb
2020N/A00N/A
20211.15 ppb1610ND - 2.18 ppb
20220.498 ppb164ND - 2.25 ppb
20230.553 ppb165ND - 2.13 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
2018-01-12ND
2018-01-12ND
2018-01-12ND
2018-01-12ND
2018-04-10ND
2018-04-10ND
2018-04-102.94 ppb
2018-04-10ND
2018-07-101.69 ppb
2018-07-10ND
2018-07-10ND
2018-07-102.29 ppb
2018-10-09ND
2018-10-09ND
2018-10-091.95 ppb
2018-10-09ND
2019-01-15ND
2019-01-15ND
2019-01-15ND
2019-01-151.52 ppb
2019-04-16ND
2019-04-161.93 ppb
2019-04-16ND
2019-04-16ND
2019-07-19ND
2019-07-19ND
2019-07-191.99 ppb
2019-07-19ND
2019-10-152.77 ppb
2019-10-15ND
2019-10-15ND
2019-10-151.55 ppb
2021-01-144064282ND
2021-01-144064280ND
2021-01-1440642791.98 ppb
2021-01-1440642812.03 ppb
2021-04-1241015972.18 ppb
2021-04-1241015981.76 ppb
2021-04-124101596ND
2021-04-1241015951.58 ppb
2021-07-164172280ND
2021-07-1641722812.00 ppb
2021-07-1641722821.66 ppb
2021-07-1641722791.58 ppb
2021-10-144195688ND
2021-10-1441956871.51 ppb
2021-10-144195690ND
2021-10-1441956892.09 ppb
2022-01-134230042ND
2022-01-134230044ND
2022-01-134230041ND
2022-01-1342300431.84 ppb
2022-04-1342705061.84 ppb
2022-04-134270507ND
2022-04-134270509ND
2022-04-1342705082.25 ppb
2022-07-114310235ND
2022-07-1143102372.04 ppb
2022-07-114310238ND
2022-07-114310236ND
2022-10-174361946ND
2022-10-174361947ND
2022-10-174361945ND
2022-10-174361948ND
2023-01-174397699ND
2023-01-174397697ND
2023-01-174397696ND
2023-01-1743976981.64 ppb
2023-04-1044420311.66 ppb
2023-04-104442029ND
2023-04-104442030ND
2023-04-104442032ND
2023-07-104482768ND
2023-07-104482766ND
2023-07-104482765ND
2023-07-1044827671.90 ppb
2023-10-0245293171.52 ppb
2023-10-024529315ND
2023-10-0245293162.13 ppb
2023-10-024529314ND