Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Monochloroacetic acid

Choctaw County Rural Water System & Solid Waste Management District #6

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.

 

42

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.84 ppb42ND - 6.44 ppb
20151.88 ppb65ND - 2.81 ppb
20162.06 ppb82ND - 8.80 ppb
20170.960 ppb81ND - 7.68 ppb
2018ND80ND
2019ND80ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.. This health guideline protects against system toxicity.

ppb = parts per billion

All test results

Date Lab ID Result
2014-06-111406404ND
2014-06-111406403ND
2014-12-2414125934.92 ppb
2014-12-2414125926.44 ppb
2015-03-3015035932.81 ppb
2015-03-3015035922.67 ppb
2015-09-3015096921.57 ppb
2015-09-301509691ND
2015-12-2215126102.16 ppb
2015-12-2215126112.08 ppb
2016-03-161603525ND
2016-03-161603524ND
2016-06-2916067158.80 ppb
2016-06-2916067147.71 ppb
2016-09-281609759ND
2016-09-281609758ND
2016-12-271612649ND
2016-12-271612648ND
2017-03-291703605ND
2017-03-291703604ND
2017-06-141706401ND
2017-06-141706400ND
2017-09-131709501ND
2017-09-1317095007.68 ppb
2017-12-131712375ND
2017-12-131712374ND
2018-03-141803498ND
2018-03-141803497ND
2018-06-131806405ND
2018-06-131806404ND
2018-09-121809411ND
2018-09-121809410ND
2018-12-111812348ND
2018-12-111812347ND
2019-03-131903380ND
2019-03-131903379ND
2019-06-181906653ND
2019-06-181906652ND
2019-09-171909606ND
2019-09-171909605ND
2019-12-111912612ND
2019-12-111912613ND