Know Your Environment. Protect Your Health.

Monochloroacetic acid

Sammamish Plateau Water and Sewer

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.

 

160

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.316 ppb325ND - 2.55 ppb
20190.143 ppb322ND - 2.86 ppb
2020N/A00N/A
20210.401 ppb326ND - 2.60 ppb
20220.277 ppb325ND - 2.16 ppb
20230.325 ppb325ND - 2.77 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
2018-02-20ND
2018-02-20ND
2018-02-20ND
2018-02-20ND
2018-02-20ND
2018-02-20ND
2018-02-201.67 ppb
2018-02-20ND
2018-05-15ND
2018-05-15ND
2018-05-15ND
2018-05-151.63 ppb
2018-05-15ND
2018-05-15ND
2018-05-15ND
2018-05-15ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-11-122.25 ppb
2018-11-122.00 ppb
2018-11-12ND
2018-11-122.55 ppb
2018-11-13ND
2018-11-13ND
2018-11-13ND
2018-11-13ND
2019-02-19ND
2019-02-19ND
2019-02-19ND
2019-02-19ND
2019-02-19ND
2019-02-19ND
2019-02-19ND
2019-02-19ND
2019-05-21ND
2019-05-21ND
2019-05-21ND
2019-05-21ND
2019-05-21ND
2019-05-211.70 ppb
2019-05-21ND
2019-05-22ND
2019-08-12ND
2019-08-12ND
2019-08-12ND
2019-08-122.86 ppb
2019-08-13ND
2019-08-13ND
2019-08-13ND
2019-08-13ND
2019-11-12ND
2019-11-12ND
2019-11-12ND
2019-11-12ND
2019-11-12ND
2019-11-12ND
2019-11-12ND
2019-11-12ND
2021-02-164078601ND
2021-02-164078602ND
2021-02-164078603ND
2021-02-164078606ND
2021-02-1640786042.15 ppb
2021-02-1640786002.54 ppb
2021-02-164078605ND
2021-02-164078607ND
2021-05-184121018ND
2021-05-184121017ND
2021-05-184121013ND
2021-05-1841210122.45 ppb
2021-05-184121019ND
2021-05-184121016ND
2021-05-184121015ND
2021-05-184121014ND
2021-08-104172307ND
2021-08-104172308ND
2021-08-1041723011.58 ppb
2021-08-104172303ND
2021-08-104172302ND
2021-08-104172305ND
2021-08-104172306ND
2021-08-104172304ND
2021-11-164206213ND
2021-11-164206211ND
2021-11-164206217ND
2021-11-1642062101.52 ppb
2021-11-164206212ND
2021-11-164206215ND
2021-11-164206216ND
2021-11-1642062142.60 ppb
2022-02-1542446411.60 ppb
2022-02-154244646ND
2022-02-154244643ND
2022-02-154244639ND
2022-02-1542446401.50 ppb
2022-02-154244642ND
2022-02-154244644ND
2022-02-154244645ND
2022-05-174284838ND
2022-05-174284836ND
2022-05-174284842ND
2022-05-1742848401.77 ppb
2022-05-174284843ND
2022-05-174284841ND
2022-05-174284839ND
2022-05-174284837ND
2022-08-094330617ND
2022-08-094330619ND
2022-08-0943306211.83 ppb
2022-08-094330624ND
2022-08-094330623ND
2022-08-094330622ND
2022-08-094330618ND
2022-08-094330620ND
2022-11-154374369ND
2022-11-154374367ND
2022-11-154374363ND
2022-11-154374364ND
2022-11-154374368ND
2022-11-1543743662.16 ppb
2022-11-154374365ND
2022-11-154374362ND
2023-02-144412832ND
2023-02-144412831ND
2023-02-144412834ND
2023-02-144412833ND
2023-02-144412835ND
2023-02-144412836ND
2023-02-144412838ND
2023-02-144412837ND
2023-05-094452293ND
2023-05-0944522961.83 ppb
2023-05-094452294ND
2023-05-094452298ND
2023-05-094452295ND
2023-05-094452299ND
2023-05-094452292ND
2023-05-094452297ND
2023-08-154499198ND
2023-08-154499202ND
2023-08-1544992012.40 ppb
2023-08-154499204ND
2023-08-154499203ND
2023-08-154499199ND
2023-08-1544991971.51 ppb
2023-08-154499200ND
2023-11-144548296ND
2023-11-144548294ND
2023-11-1445482891.89 ppb
2023-11-144548292ND
2023-11-144548290ND
2023-11-1445482932.77 ppb
2023-11-144548295ND
2023-11-144548291ND