Know Your Environment. Protect Your Health.

Monochloroacetic acid

Purcellville, Town 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.

 

58

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.950 ppb85ND - 1.90 ppb
20190.150 ppb81ND - 1.20 ppb
20201.08 ppb85ND - 2.20 ppb
20210.921 ppb147ND - 2.70 ppb
20221.15 ppb128ND - 2.50 ppb
20231.06 ppb85ND - 2.50 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
2018-02-15E1801003281.50 ppb
2018-02-15E1801003361.40 ppb
2018-05-14E1803038631.60 ppb
2018-05-14E1803038651.20 ppb
2018-08-15E180601964ND
2018-08-15E1806019681.90 ppb
2018-11-14E180901397ND
2018-11-14E180901399ND
2019-02-13E181104013ND
2019-02-13E181104014ND
2019-05-14E190304838ND
2019-05-14E190304840ND
2019-08-13E190609956ND
2019-08-13E1906099601.20 ppb
2019-11-13E191000262ND
2019-11-13E191000260ND
2020-02-12E191203665ND
2020-02-12E191203667ND
2020-05-19E200302310ND
2020-05-19E2003023121.50 ppb
2020-08-11E2006012822.20 ppb
2020-08-11E2006012841.50 ppb
2020-11-16E2009062041.60 ppb
2020-11-16E2009062181.80 ppb
2021-02-16E210100120ND
2021-02-16E210100117ND
2021-05-12E210400653ND
2021-05-12E210400652ND
2021-05-12E210400651ND
2021-05-12E210400650ND
2021-08-11E2106014931.70 ppb
2021-08-11E2107031182.70 ppb
2021-08-11E2106014922.50 ppb
2021-08-11E2107031211.30 ppb
2021-11-15E210901962ND
2021-11-15E2109019611.70 ppb
2021-11-15E2109019601.70 ppb
2021-11-15E2109019591.30 ppb
2022-02-16E2112016471.20 ppb
2022-02-16E211201646ND
2022-02-16E211201645ND
2022-02-16E211201644ND
2022-05-16E2203036791.60 ppb
2022-05-16E2203036801.60 ppb
2022-05-16E2203036781.80 ppb
2022-05-16E220303677ND
2022-08-17E2208024602.50 ppb
2022-09-01E2208042821.50 ppb
2022-11-14E2209043781.60 ppb
2022-11-14E2209043772.00 ppb
2023-02-13E221203943ND
2023-02-13E221203944ND
2023-05-16E2303046431.30 ppb
2023-05-16E230304644ND
2023-08-15E2306033632.50 ppb
2023-08-15E2306033641.80 ppb
2023-11-20E2309036101.60 ppb
2023-11-20E2309036111.30 ppb