Know Your Environment. Protect Your Health.

Monochloroacetic acid

Northshore Utility District

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
20180.506 ppb328ND - 2.60 ppb
20190.927 ppb3215ND - 2.26 ppb
2020N/A00N/A
20211.68 ppb3226ND - 2.66 ppb
20220.561 ppb3210ND - 2.13 ppb
20231.06 ppb3219ND - 2.16 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
2018-02-132.60 ppb
2018-02-131.92 ppb
2018-02-132.38 ppb
2018-02-13ND
2018-02-132.19 ppb
2018-02-13ND
2018-02-13ND
2018-02-13ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-08-02ND
2018-08-02ND
2018-08-02ND
2018-08-02ND
2018-08-02ND
2018-08-02ND
2018-08-02ND
2018-08-02ND
2018-11-141.59 ppb
2018-11-141.63 ppb
2018-11-14ND
2018-11-14ND
2018-11-14ND
2018-11-141.57 ppb
2018-11-142.30 ppb
2018-11-14ND
2019-02-21ND
2019-02-21ND
2019-02-21ND
2019-02-21ND
2019-02-21ND
2019-02-21ND
2019-02-21ND
2019-02-21ND
2019-05-152.18 ppb
2019-05-152.06 ppb
2019-05-152.08 ppb
2019-05-151.90 ppb
2019-05-151.81 ppb
2019-05-151.79 ppb
2019-05-152.12 ppb
2019-05-152.08 ppb
2019-08-132.01 ppb
2019-08-132.25 ppb
2019-08-132.26 ppb
2019-08-13ND
2019-08-131.67 ppb
2019-08-13ND
2019-08-131.86 ppb
2019-08-131.90 ppb
2019-11-13ND
2019-11-13ND
2019-11-13ND
2019-11-13ND
2019-11-13ND
2019-11-13ND
2019-11-131.69 ppb
2019-11-13ND
2021-02-0940785862.34 ppb
2021-02-0940785932.51 ppb
2021-02-0940785912.31 ppb
2021-02-0940785882.30 ppb
2021-02-0940785892.66 ppb
2021-02-094078590ND
2021-02-0940785922.46 ppb
2021-02-0940785872.44 ppb
2021-05-1141210031.77 ppb
2021-05-1141210041.96 ppb
2021-05-1141210051.89 ppb
2021-05-1141210021.75 ppb
2021-05-1141210012.14 ppb
2021-05-1141209981.85 ppb
2021-05-1141209991.72 ppb
2021-05-1141210001.77 ppb
2021-08-124172314ND
2021-08-1241723161.50 ppb
2021-08-124172320ND
2021-08-124172313ND
2021-08-1241723181.64 ppb
2021-08-1241723151.68 ppb
2021-08-124172317ND
2021-08-1241723191.68 ppb
2021-11-1042062031.57 ppb
2021-11-1042062002.26 ppb
2021-11-1042061992.48 ppb
2021-11-1042062052.28 ppb
2021-11-104206202ND
2021-11-1042062012.32 ppb
2021-11-1042061982.59 ppb
2021-11-1042062041.89 ppb
2022-02-0842446281.57 ppb
2022-02-084244630ND
2022-02-084244632ND
2022-02-084244631ND
2022-02-084244629ND
2022-02-084244634ND
2022-02-084244627ND
2022-02-084244633ND
2022-05-104284832ND
2022-05-1042848312.02 ppb
2022-05-104284835ND
2022-05-1042848282.09 ppb
2022-05-1042848302.13 ppb
2022-05-1042848292.01 ppb
2022-05-1042848341.52 ppb
2022-05-1042848331.71 ppb
2022-08-104330611ND
2022-08-104330616ND
2022-08-104330614ND
2022-08-104330612ND
2022-08-104330610ND
2022-08-104330615ND
2022-08-104330613ND
2022-08-104330609ND
2022-11-094374354ND
2022-11-094374356ND
2022-11-0943743611.50 ppb
2022-11-094374358ND
2022-11-0943743551.64 ppb
2022-11-0943743591.75 ppb
2022-11-094374357ND
2022-11-094374360ND
2023-02-134412814ND
2023-02-134412812ND
2023-02-134412813ND
2023-02-134412818ND
2023-02-134412817ND
2023-02-134412811ND
2023-02-134412816ND
2023-02-134412815ND
2023-05-0444522841.80 ppb
2023-05-0444522821.71 ppb
2023-05-0444522861.88 ppb
2023-05-0444522871.92 ppb
2023-05-0444522801.69 ppb
2023-05-0444522811.62 ppb
2023-05-0444522831.70 ppb
2023-05-0444522851.79 ppb
2023-08-0144991711.55 ppb
2023-08-014499168ND
2023-08-014499164ND
2023-08-014499167ND
2023-08-0144991651.51 ppb
2023-08-014499166ND
2023-08-0144991701.62 ppb
2023-08-0144991691.58 ppb
2023-11-0645482781.95 ppb
2023-11-0645482802.00 ppb
2023-11-0645482822.16 ppb
2023-11-0645482751.77 ppb
2023-11-0645482762.09 ppb
2023-11-0645482771.96 ppb
2023-11-064548279ND
2023-11-0645482811.56 ppb