Know Your Environment. Protect Your Health.

Monochloroacetic acid

City of Zavalla

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.69 ppb85ND - 6.40 ppb
20190.338 ppb82ND - 1.50 ppb
2020ND80ND
20210.288 ppb82ND - 1.30 ppb
20222.75 ppb85ND - 7.30 ppb
20234.03 ppb882.50 ppb - 6.00 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
2018-02-12Q1805619020ND
2018-02-12Q1805619019ND
2018-05-17Q1820210006ND
2018-05-17Q18202100054.20 ppb
2018-08-15Q18329650013.00 ppb
2018-08-15Q18329650061.60 ppb
2018-12-03Q18490180016.30 ppb
2018-12-03Q18490180046.40 ppb
2019-02-11Q19060180151.20 ppb
2019-02-11Q19060180161.50 ppb
2019-04-29Q1917248001ND
2019-04-29Q1917248004ND
2019-08-21Q1957739006ND
2019-08-21Q1957739005ND
2019-11-05Q1975066005ND
2019-11-05Q1975066006ND
2020-01-22Q2002509011ND
2020-01-22Q2002509012ND
2020-04-08Q2014238005ND
2020-04-08Q2014238006ND
2020-07-14Q2027691005ND
2020-07-14Q2027691006ND
2020-10-07Q2039302005ND
2020-10-07Q2039302006ND
2021-01-12Q2100808017ND
2021-01-12Q2100808018ND
2021-04-08Q21090000071.000 ppb
2021-04-08Q2109000008ND
2021-07-28Q21197060051.30 ppb
2021-07-28Q2119706006ND
2021-10-05Q2127299005ND
2021-10-05Q2127299006ND
2022-01-05Q2200291011ND
2022-01-05Q2200291012ND
2022-04-05Q22104260054.50 ppb
2022-04-05Q22104260064.00 ppb
2022-07-08Q22191950061.000 ppb
2022-07-08Q2219195007ND
2022-10-04Q22297470057.30 ppb
2022-10-04Q22297470065.20 ppb
2023-01-09Q23008030124.40 ppb
2023-01-09Q23008030132.90 ppb
2023-05-15Q23182630016.00 ppb
2023-05-15Q23182630023.90 ppb
2023-08-07Q23321440015.30 ppb
2023-08-07Q23321440023.10 ppb
2023-10-10Q23431340052.50 ppb
2023-10-10Q23431340064.10 ppb