Know Your Environment. Protect Your Health.

Monochloroacetic acid

Cypress Valley Water Supply Corporation Plant 2

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
20182.76 ppb86ND - 4.40 ppb
20191.59 ppb86ND - 5.40 ppb
20200.750 ppb82ND - 3.00 ppb
20212.49 ppb84ND - 10.00 ppb
20220.263 ppb82ND - 1.10 ppb
20236.05 ppb884.90 ppb - 7.90 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
2018-02-22Q1807494002ND
2018-02-22Q1807494001ND
2018-05-23Q18207670023.80 ppb
2018-05-23Q18207670014.40 ppb
2018-08-15Q18329040012.90 ppb
2018-08-15Q18329040023.00 ppb
2018-11-06Q18442930083.80 ppb
2018-11-06Q18442930094.20 ppb
2019-03-12Q19101940015.40 ppb
2019-03-12Q1910194007ND
2019-06-10Q19334200012.20 ppb
2019-06-10Q19334200022.10 ppb
2019-09-11Q19640980021.000 ppb
2019-09-11Q1964098001ND
2019-12-04Q19792110011.000 ppb
2019-12-04Q19792110021.000 ppb
2020-03-17Q2011578005ND
2020-03-17Q2011578006ND
2020-06-16Q2023962001ND
2020-06-16Q2023962002ND
2020-09-24Q20378490013.00 ppb
2020-09-24Q20378490023.00 ppb
2020-12-15Q2049725001ND
2020-12-15Q2049725002ND
2021-03-08Q210595900310.00 ppb
2021-03-08Q21059590047.80 ppb
2021-05-24Q21135300011.000 ppb
2021-05-24Q21135300021.10 ppb
2021-09-10Q2124782001ND
2021-09-10Q2124782002ND
2021-11-01Q2130504001ND
2021-11-01Q2130504002ND
2022-01-24Q2202506001ND
2022-01-24Q2202506002ND
2022-04-25Q2212337001ND
2022-04-25Q2212337002ND
2022-07-21Q2220904001ND
2022-07-21Q22209040021.000 ppb
2022-10-31Q22329600061.10 ppb
2022-10-31Q2232960007ND
2023-01-25Q23035080016.00 ppb
2023-01-25Q23035080024.90 ppb
2023-06-12Q23220990015.70 ppb
2023-06-12Q23220990025.20 ppb
2023-08-11Q23337030015.50 ppb
2023-08-11Q23337030026.00 ppb
2023-10-12Q23435570047.90 ppb
2023-10-12Q23435570057.20 ppb