Know Your Environment. Protect Your Health.

Monochloroacetic acid

Snohomish City Of

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.

 

91

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.252 ppb212ND - 3.10 ppb
20190.747 ppb174ND - 3.80 ppb
2020N/A00N/A
20210.594 ppb184ND - 3.10 ppb
20220.229 ppb171ND - 3.90 ppb
20230.483 ppb184ND - 2.40 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
2018-01-10ND
2018-01-10ND
2018-01-102.20 ppb
2018-01-10ND
2018-01-10ND
2018-04-11ND
2018-04-11ND
2018-04-11ND
2018-04-11ND
2018-04-11ND
2018-07-11ND
2018-07-11ND
2018-07-11ND
2018-07-11ND
2018-07-11ND
2018-07-11ND
2018-10-08ND
2018-10-08ND
2018-10-083.10 ppb
2018-10-08ND
2018-10-08ND
2019-01-09ND
2019-01-09ND
2019-01-09ND
2019-01-092.80 ppb
2019-04-10ND
2019-04-10ND
2019-04-10ND
2019-04-10ND
2019-07-11ND
2019-07-113.50 ppb
2019-07-11ND
2019-07-112.60 ppb
2019-07-11ND
2019-10-10ND
2019-10-10ND
2019-10-10ND
2019-10-103.80 ppb
2021-01-1340662102.20 ppb
2021-01-134066401ND
2021-01-134066403ND
2021-01-134066405ND
2021-01-134066407ND
2021-04-134102466ND
2021-04-134102464ND
2021-04-134101960ND
2021-04-134102462ND
2021-07-144145115ND
2021-07-1441451112.50 ppb
2021-07-1441451132.90 ppb
2021-07-144145109ND
2021-07-144145107ND
2021-10-144197741ND
2021-10-144197739ND
2021-10-1441977453.10 ppb
2021-10-144197743ND
2022-01-124234180ND
2022-01-124234175ND
2022-01-124234194ND
2022-01-124234186ND
2022-01-124234200ND
2022-04-134279785ND
2022-04-134279783ND
2022-04-134279787ND
2022-04-144326960ND
2022-07-1343206243.90 ppb
2022-07-134322123ND
2022-07-134322120ND
2022-07-134322125ND
2022-10-124368842ND
2022-10-124370515ND
2022-10-124370502ND
2022-10-124368844ND
2023-01-1143997242.10 ppb
2023-01-114400244ND
2023-01-114400242ND
2023-01-114400246ND
2023-04-054437337ND
2023-04-054437345ND
2023-04-054437339ND
2023-04-054437343ND
2023-04-054437341ND
2023-07-054486391ND
2023-07-054486317ND
2023-07-054486395ND
2023-07-054486393ND
2023-10-0545433872.40 ppb
2023-10-0545433852.00 ppb
2023-10-054543379ND
2023-10-054543381ND
2023-10-0545433832.20 ppb