Know Your Environment. Protect Your Health.

Monochloroacetic acid

SNO PUD 1 - Lake Stevens

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.

 

164

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.51 ppb208ND - 5.60 ppb
20190.242 ppb364ND - 2.50 ppb
2020N/A00N/A
20211.69 ppb3623ND - 3.50 ppb
20220.883 ppb3612ND - 3.80 ppb
20230.892 ppb3613ND - 3.20 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
2018-02-264.90 ppb
2018-02-264.50 ppb
2018-02-265.20 ppb
2018-02-265.60 ppb
2018-02-26ND
2018-05-15ND
2018-05-15ND
2018-05-15ND
2018-05-15ND
2018-05-15ND
2018-08-20ND
2018-08-203.30 ppb
2018-08-20ND
2018-08-202.20 ppb
2018-08-202.30 ppb
2018-11-08ND
2018-11-082.10 ppb
2018-11-08ND
2018-11-08ND
2018-11-08ND
2019-02-262.00 ppb
2019-02-262.00 ppb
2019-02-26ND
2019-02-26ND
2019-02-26ND
2019-03-29ND
2019-03-29ND
2019-03-29ND
2019-03-29ND
2019-05-16ND
2019-05-16ND
2019-05-16ND
2019-05-16ND
2019-05-16ND
2019-05-17ND
2019-05-17ND
2019-05-17ND
2019-05-17ND
2019-08-15ND
2019-08-15ND
2019-08-15ND
2019-08-15ND
2019-08-15ND
2019-08-22ND
2019-08-22ND
2019-08-22ND
2019-08-22ND
2019-11-072.20 ppb
2019-11-072.50 ppb
2019-11-07ND
2019-11-07ND
2019-11-07ND
2019-11-08ND
2019-11-08ND
2019-11-08ND
2019-11-08ND
2021-02-1740780982.20 ppb
2021-02-174078100ND
2021-02-174078104ND
2021-02-174078102ND
2021-02-1740780962.00 ppb
2021-02-184078066ND
2021-02-1840780702.00 ppb
2021-02-184078068ND
2021-02-1840780722.00 ppb
2021-05-1841189972.70 ppb
2021-05-1841189922.20 ppb
2021-05-1841189722.80 ppb
2021-05-1841189813.00 ppb
2021-05-1841189643.00 ppb
2021-05-1941646052.40 ppb
2021-05-194164607ND
2021-05-1941646092.30 ppb
2021-05-1941646032.80 ppb
2021-08-174166103ND
2021-08-1741661052.30 ppb
2021-08-1741661073.40 ppb
2021-08-1741661113.40 ppb
2021-08-1741661093.10 ppb
2021-08-1841662422.80 ppb
2021-08-1841662442.30 ppb
2021-08-184166240ND
2021-08-1841662382.00 ppb
2021-11-1042106623.00 ppb
2021-11-104210664ND
2021-11-1042106583.50 ppb
2021-11-1042106603.50 ppb
2021-11-1042106562.10 ppb
2021-11-234210587ND
2021-11-234210589ND
2021-11-234210593ND
2021-11-234210591ND
2022-02-1642473982.20 ppb
2022-02-164247339ND
2022-02-164247388ND
2022-02-164247393ND
2022-02-1642473362.00 ppb
2022-02-174247404ND
2022-02-174247409ND
2022-02-1742474182.50 ppb
2022-02-1742474142.00 ppb
2022-05-184296761ND
2022-05-184296765ND
2022-05-1842967672.00 ppb
2022-05-184296763ND
2022-05-184296769ND
2022-05-194296783ND
2022-05-194296779ND
2022-05-194296785ND
2022-05-194296781ND
2022-08-224339624ND
2022-08-2243396302.80 ppb
2022-08-2243396272.20 ppb
2022-08-2243396343.50 ppb
2022-08-2243392443.80 ppb
2022-08-234335165ND
2022-08-2343351613.60 ppb
2022-08-2343351632.30 ppb
2022-08-2343351592.90 ppb
2022-11-174384776ND
2022-11-174384791ND
2022-11-174384785ND
2022-11-174384781ND
2022-11-184384741ND
2022-11-184384733ND
2022-11-184384723ND
2022-11-184384728ND
2022-11-184384747ND
2023-02-224423148ND
2023-02-224423098ND
2023-02-224423086ND
2023-02-224423094ND
2023-02-224423167ND
2023-02-234423207ND
2023-02-234423172ND
2023-02-234423205ND
2023-02-234423203ND
2023-05-174460078ND
2023-05-174460074ND
2023-05-174460076ND
2023-05-174460072ND
2023-05-174460070ND
2023-05-194460046ND
2023-05-194460044ND
2023-05-1944600502.50 ppb
2023-05-194460052ND
2023-08-0445771842.30 ppb
2023-08-0445771782.40 ppb
2023-08-0445771862.40 ppb
2023-08-0445771822.20 ppb
2023-08-044577180ND
2023-08-114510035ND
2023-08-1145100393.20 ppb
2023-08-1145100373.10 ppb
2023-08-114510033ND
2023-11-204556369ND
2023-11-2045563672.30 ppb
2023-11-2045563652.40 ppb
2023-11-204556363ND
2023-11-2145563272.50 ppb
2023-11-214556333ND
2023-11-2145563032.30 ppb
2023-11-2145563292.00 ppb
2023-11-2145563252.50 ppb