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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Rio Rancho Water and Waterworks Services

Dichloroacetic 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.

MORE ABOUT THIS CONTAMINANT

 

94

Samples

0

Samples exceeding legal limit (MCL)

33

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.185 ppb1613ND - 0.450 ppb
20150.179 ppb1613ND - 0.290 ppb
20160.0406 ppb163ND - 0.250 ppb
2017ND160ND
20180.0279 ppb141ND - 0.390 ppb
20190.676 ppb1615ND - 1.20 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic 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.a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-1620140015240.290 ppb
2014-01-1620140015260.250 ppb
2014-01-1620140015250.220 ppb
2014-01-1620140015270.450 ppb
2014-04-1520140122290.220 ppb
2014-04-1520140122270.180 ppb
2014-04-1520140122280.160 ppb
2014-04-152014012230ND
2014-07-152014022639ND
2014-07-1520140226410.170 ppb
2014-07-1520140226420.200 ppb
2014-07-1520140226400.220 ppb
2014-10-1520140324410.210 ppb
2014-10-1520140324390.200 ppb
2014-10-1520140324380.190 ppb
2014-10-152014032440ND
2015-01-2120150022410.290 ppb
2015-01-2120150022390.210 ppb
2015-01-2120150022400.210 ppb
2015-01-2120150022380.200 ppb
2015-05-062015013673ND
2015-05-0620150136720.180 ppb
2015-05-0620150136710.210 ppb
2015-05-0620150136740.290 ppb
2015-07-3020150218110.240 ppb
2015-07-3020150218120.230 ppb
2015-07-302015021813ND
2015-07-3020150218140.250 ppb
2015-10-1420150309450.200 ppb
2015-10-1420150309420.190 ppb
2015-10-1420150309430.170 ppb
2015-10-142015030944ND
2016-01-2120160018620.170 ppb
2016-01-212016001861ND
2016-01-2120160018600.230 ppb
2016-01-2120160018630.250 ppb
2016-04-132016010458ND
2016-04-132016010456ND
2016-04-132016010455ND
2016-04-132016010457ND
2016-07-132016019988ND
2016-07-132016019989ND
2016-07-132016019990ND
2016-07-132016019991ND
2016-10-132016029746ND
2016-10-132016029745ND
2016-10-132016029748ND
2016-10-132016029747ND
2017-01-122017001044ND
2017-01-122017001045ND
2017-01-122017001046ND
2017-01-122017001047ND
2017-04-122017010828ND
2017-04-122017010829ND
2017-04-122017010827ND
2017-04-122017010826ND
2017-07-132017020213ND
2017-07-132017020212ND
2017-07-132017020215ND
2017-07-132017020214ND
2017-10-112017029362ND
2017-10-112017029361ND
2017-10-112017029363ND
2017-10-182017029990ND
2018-01-112018001117ND
2018-01-112018001116ND
2018-04-1120180102820.390 ppb
2018-04-112018010281ND
2018-04-112018010280ND
2018-04-112018010279ND
2018-07-112018018857ND
2018-07-112018018856ND
2018-07-112018018855ND
2018-07-242018020453ND
2018-10-102018028970ND
2018-10-102018028969ND
2018-10-102018028968ND
2018-10-102018028967ND
2019-01-0920190006270.960 ppb
2019-01-0920190006260.660 ppb
2019-01-0920190006250.460 ppb
2019-01-0920190006240.910 ppb
2019-04-1720190096910.570 ppb
2019-04-1720190096900.610 ppb
2019-04-172019009689ND
2019-04-1720190096880.600 ppb
2019-07-1120190189390.980 ppb
2019-07-1120190189380.390 ppb
2019-07-1120190189370.820 ppb
2019-07-1120190189361.000 ppb
2019-10-1620190296361.20 ppb
2019-10-1620190296380.670 ppb
2019-10-1620190296370.500 ppb
2019-10-1620190296390.480 ppb