Know Your Environment. Protect Your Health.

Monochloroacetic acid

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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.

 

59

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.13 ppb43ND - 3.50 ppb
20191.60 ppb96ND - 2.90 ppb
20201.30 ppb105ND - 2.90 ppb
20210.858 ppb124ND - 3.90 ppb
20223.32 ppb1210ND - 5.60 ppb
20232.71 ppb1211ND - 4.20 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
2018-01-09CA1009027_DST_901-2018010911152.70 ppb
2018-04-10CA1009027_DST_901-2018041011553.50 ppb
2018-07-10CA1009027_DST_901-201807101120ND
2018-10-11CA1009027_DST_901-2018101113152.30 ppb
2019-01-15CA1009027_DST_901-201901151015ND
2019-04-18CA1009027_DST_901-2019041810302.60 ppb
2019-05-14CA1009027_DST_901-2019051412002.40 ppb
2019-06-11CA1009027_DST_901-2019061112002.20 ppb
2019-07-09CA1009027_DST_901-2019070912402.90 ppb
2019-08-13CA1009027_DST_901-201908131145ND
2019-09-10CA1009027_DST_901-2019091011402.10 ppb
2019-10-15CA1009027_DST_901-201910151150ND
2019-11-19CA1009027_DST_901-2019111913202.20 ppb
2020-01-22CA1009027_DST_901-202001220845ND
2020-02-11CA1009027_DST_901-2020021112502.70 ppb
2020-03-10CA1009027_DST_901-2020031013452.10 ppb
2020-04-14CA1009027_DST_901-2020041411552.90 ppb
2020-05-12CA1009027_DST_901-2020051213452.90 ppb
2020-07-28CA1009027_DST_901-2020072814402.40 ppb
2020-08-11CA1009027_DST_901-202008111220ND
2020-09-15CA1009027_DST_901-202009151150ND
2020-10-13CA1009027_DST_901-202010131305ND
2020-12-15CA1009027_DST_901-202012151240ND
2021-01-12CA1009027_DST_902-202101121115ND
2021-02-11CA1009027_DST_902-202102111305ND
2021-03-23CA1009027_DST_902-2021032308503.90 ppb
2021-04-13CA1009027_DST_902-202104131315ND
2021-05-11CA1009027_DST_902-2021051112152.10 ppb
2021-06-15CA1009027_DST_902-2021061511222.20 ppb
2021-07-16CA1009027_DST_902-2021071612062.10 ppb
2021-08-09CA1009027_DST_902-202108091040ND
2021-09-14CA1009027_DST_902-202109140945ND
2021-10-12CA1009027_DST_902-202110121015ND
2021-11-09CA1009027_DST_902-202111091028ND
2021-12-28CA1009027_DST_902-202112281155ND
2022-01-11CA1009027_DST_902-202201111100ND
2022-02-08CA1009027_DST_902-2022020810132.30 ppb
2022-03-15CA1009027_DST_902-2022031510402.40 ppb
2022-04-12CA1009027_DST_902-2022041211265.20 ppb
2022-05-10CA1009027_DST_902-2022051009453.90 ppb
2022-06-14CA1009027_DST_902-2022061410525.50 ppb
2022-07-12CA1009027_DST_902-2022071210303.70 ppb
2022-08-09CA1009027_DST_902-2022080910353.10 ppb
2022-09-29CA1009027_DST_902-2022092910395.20 ppb
2022-10-11CA1009027_DST_902-2022101112025.60 ppb
2022-11-10CA1009027_DST_902-202211101054ND
2022-12-13CA1009027_DST_902-2022121311272.90 ppb
2023-01-10CA1009027_DST_902-202301101110ND
2023-02-07CA1009027_DST_902-2023020712002.20 ppb
2023-03-14CA1009027_DST_902-2023031410403.30 ppb
2023-04-11CA1009027_DST_902-2023041110453.70 ppb
2023-05-09CA1009027_DST_902-2023050910253.00 ppb
2023-06-13CA1009027_DST_902-2023061311302.50 ppb
2023-07-11CA1009027_DST_902-2023071111104.20 ppb
2023-08-08CA1009027_DST_902-2023080810353.50 ppb
2023-09-12CA1009027_DST_902-2023091211322.40 ppb
2023-10-10CA1009027_DST_902-2023101011152.10 ppb
2023-11-14CA1009027_DST_902-2023111411203.00 ppb
2023-12-12CA1009027_DST_902-2023121211212.60 ppb