Know Your Environment. Protect Your Health.

Monochloroacetic acid

City of Bellevue

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.

 

208

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.968 ppb3215ND - 3.00 ppb
20191.12 ppb3218ND - 2.66 ppb
2020N/A00N/A
20211.94 ppb4841ND - 3.29 ppb
20221.28 ppb4828ND - 3.46 ppb
20230.736 ppb4820ND - 2.26 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
2018-01-17ND
2018-01-17ND
2018-01-17ND
2018-01-17ND
2018-04-093.00 ppb
2018-04-09ND
2018-04-092.24 ppb
2018-04-091.82 ppb
2018-04-092.78 ppb
2018-04-09ND
2018-04-092.10 ppb
2018-04-092.48 ppb
2018-07-091.83 ppb
2018-07-09ND
2018-07-091.59 ppb
2018-07-091.92 ppb
2018-07-092.52 ppb
2018-07-09ND
2018-07-091.95 ppb
2018-07-091.76 ppb
2018-10-08ND
2018-10-08ND
2018-10-081.51 ppb
2018-10-08ND
2018-10-08ND
2018-10-08ND
2018-10-081.89 ppb
2018-10-081.59 ppb
2019-01-14ND
2019-01-14ND
2019-01-141.63 ppb
2019-01-14ND
2019-01-14ND
2019-01-14ND
2019-01-141.96 ppb
2019-01-14ND
2019-04-081.73 ppb
2019-04-08ND
2019-04-081.99 ppb
2019-04-08ND
2019-04-081.76 ppb
2019-04-08ND
2019-04-081.89 ppb
2019-04-08ND
2019-07-161.79 ppb
2019-07-16ND
2019-07-161.63 ppb
2019-07-162.05 ppb
2019-07-16ND
2019-07-16ND
2019-07-162.04 ppb
2019-07-161.80 ppb
2019-10-142.45 ppb
2019-10-142.30 ppb
2019-10-142.37 ppb
2019-10-141.89 ppb
2019-10-141.69 ppb
2019-10-14ND
2019-10-142.66 ppb
2019-10-142.07 ppb
2021-01-1440642942.20 ppb
2021-01-1440642932.45 ppb
2021-01-1440642902.26 ppb
2021-01-1440642832.28 ppb
2021-01-1440642912.52 ppb
2021-01-1440642892.26 ppb
2021-01-1440642872.37 ppb
2021-01-1440642852.02 ppb
2021-01-1440642881.90 ppb
2021-01-1440642862.06 ppb
2021-01-1440642841.77 ppb
2021-01-1440642922.20 ppb
2021-04-1241016103.28 ppb
2021-04-1241015992.31 ppb
2021-04-1241016012.15 ppb
2021-04-1241016052.18 ppb
2021-04-1241016072.96 ppb
2021-04-1241016032.17 ppb
2021-04-1241016082.49 ppb
2021-04-1241016092.69 ppb
2021-04-1241016062.58 ppb
2021-04-1241016042.17 ppb
2021-04-1241016022.16 ppb
2021-04-1241016001.76 ppb
2021-07-1441722682.19 ppb
2021-07-1441722612.12 ppb
2021-07-1441722703.29 ppb
2021-07-144172263ND
2021-07-1441722652.98 ppb
2021-07-1441722672.58 ppb
2021-07-144172259ND
2021-07-1441722692.29 ppb
2021-07-1441722661.81 ppb
2021-07-1441722641.89 ppb
2021-07-1441722622.62 ppb
2021-07-144172260ND
2021-10-134195680ND
2021-10-1341956781.80 ppb
2021-10-134195675ND
2021-10-1341956822.07 ppb
2021-10-1341956792.32 ppb
2021-10-134195676ND
2021-10-1341956812.09 ppb
2021-10-1341956861.80 ppb
2021-10-134195685ND
2021-10-1341956831.83 ppb
2021-10-1341956772.69 ppb
2021-10-1341956841.62 ppb
2022-01-1442300512.08 ppb
2022-01-144230055ND
2022-01-144230053ND
2022-01-1442300561.53 ppb
2022-01-1442300481.78 ppb
2022-01-1442300471.93 ppb
2022-01-1442300541.77 ppb
2022-01-144230052ND
2022-01-144230050ND
2022-01-144230049ND
2022-01-1442300451.58 ppb
2022-01-144230046ND
2022-04-1442705151.67 ppb
2022-04-1442705202.02 ppb
2022-04-1442705131.77 ppb
2022-04-1442705182.02 ppb
2022-04-1442705162.14 ppb
2022-04-1442705143.46 ppb
2022-04-1442705121.92 ppb
2022-04-1442705101.80 ppb
2022-04-1442705191.86 ppb
2022-04-1442705172.06 ppb
2022-04-144270511ND
2022-04-1442705212.04 ppb
2022-07-1443102552.43 ppb
2022-07-144310248ND
2022-07-1443102582.72 ppb
2022-07-1443102562.54 ppb
2022-07-1443102542.61 ppb
2022-07-1443102492.40 ppb
2022-07-1443102472.22 ppb
2022-07-1443102532.38 ppb
2022-07-1443102503.08 ppb
2022-07-1443102522.34 ppb
2022-07-1443102512.23 ppb
2022-07-1443102572.93 ppb
2022-10-114361936ND
2022-10-114361934ND
2022-10-114361929ND
2022-10-114361931ND
2022-10-114361932ND
2022-10-114361930ND
2022-10-114361926ND
2022-10-114361925ND
2022-10-114361933ND
2022-10-114361935ND
2022-10-114361927ND
2022-10-114361928ND
2023-01-104397688ND
2023-01-104397686ND
2023-01-104397685ND
2023-01-1043976901.57 ppb
2023-01-104397687ND
2023-01-104397684ND
2023-01-114397695ND
2023-01-114397693ND
2023-01-114397694ND
2023-01-114397689ND
2023-01-114397692ND
2023-01-114397691ND
2023-04-104442044ND
2023-04-104442033ND
2023-04-104442042ND
2023-04-104442035ND
2023-04-104442037ND
2023-04-104442039ND
2023-04-104442041ND
2023-04-104442043ND
2023-04-104442040ND
2023-04-104442038ND
2023-04-104442036ND
2023-04-104442034ND
2023-07-1144827921.91 ppb
2023-07-1144827911.77 ppb
2023-07-114482782ND
2023-07-114482781ND
2023-07-1144827831.74 ppb
2023-07-1144827901.58 ppb
2023-07-114482789ND
2023-07-1144827871.71 ppb
2023-07-1144827851.58 ppb
2023-07-1144827881.82 ppb
2023-07-1144827841.67 ppb
2023-07-1144827861.61 ppb
2023-10-1045293481.54 ppb
2023-10-1045293501.98 ppb
2023-10-1045293461.70 ppb
2023-10-1045293452.00 ppb
2023-10-1045293432.26 ppb
2023-10-1045293541.60 ppb
2023-10-104529353ND
2023-10-1045293491.60 ppb
2023-10-1045293472.03 ppb
2023-10-1045293441.72 ppb
2023-10-104529352ND
2023-10-1045293511.93 ppb