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EWG's Tap Water Database — 2019 UPDATE

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Dichloroacetic acid

Municipality of Anchorage

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.

 

193

Samples

0

Samples exceeding legal limit (MCL)

171

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20123.17 ppb27271.71 ppb - 9.70 ppb
20133.49 ppb3228ND - 14.2 ppb
20143.23 ppb3228ND - 10.6 ppb
20154.08 ppb3328ND - 34.0 ppb
20161.96 ppb3428ND - 6.60 ppb
20171.98 ppb3532ND - 6.30 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
2012-01-24DH*A1201200-03B2.44 ppb
2012-01-24DH*A1201200-04B2.40 ppb
2012-01-24DH*A1201200-05B2.18 ppb
2012-04-24DH*A1204332-03B2.07 ppb
2012-04-24DH*A1204332-04B2.12 ppb
2012-04-24DH*A1204332-05B3.67 ppb
2012-04-24DH*A1204332-06B2.06 ppb
2012-04-24DH*A1204332-07B6.41 ppb
2012-04-24DH*A1204332-08B2.55 ppb
2012-04-24DH*A1204332-09B2.07 ppb
2012-04-24DH*A1204332-10B1.71 ppb
2012-07-25DH*A1207441-03B3.63 ppb
2012-07-25DH*A1207441-08B3.06 ppb
2012-07-26DH*A1207479-01B4.06 ppb
2012-07-26DH*A1207479-02B3.36 ppb
2012-07-26DH*A1207479-03B3.11 ppb
2012-07-26DH*A1207479-04B4.00 ppb
2012-07-26DH*A1207479-05B3.84 ppb
2012-07-26DH*A1207479-06B2.06 ppb
2012-10-15DH*A1210254-05B2.87 ppb
2012-11-02DH*A1211026-01B3.10 ppb
2012-11-02DH*A1211026-02B2.89 ppb
2012-11-02DH*A1211026-03B9.70 ppb
2012-11-02DH*A1211026-04B2.71 ppb
2012-11-02DH*A1211026-05B3.31 ppb
2012-11-02DH*A1211026-06B2.41 ppb
2012-11-02DH*A1211026-07B1.92 ppb
2013-01-30DH*A1302011-03B1.79 ppb
2013-01-30DH*A1302011-04B3.64 ppb
2013-01-30DH*A1302011-05B4.18 ppb
2013-01-30DH*A1302011-06BND
2013-01-30DH*A1302011-07B2.01 ppb
2013-01-30DH*A1302011-08BND
2013-01-30DH*A1302011-09BND
2013-01-30DH*A1302011-10B2.58 ppb
2013-04-15DH*A1304291-03B2.35 ppb
2013-04-15DH*A1304291-05B2.39 ppb
2013-04-15DH*A1304291-06B11.1 ppb
2013-04-15DH*A1304291-07B3.52 ppb
2013-04-15DH*A1304291-08B3.26 ppb
2013-04-15DH*A1304291-09B3.07 ppb
2013-04-15DH*A1304291-10B3.32 ppb
2013-04-15DH*A1304291-11B2.43 ppb
2013-07-24DH*A1307509-03B2.19 ppb
2013-07-24DH*A1307509-05B1.83 ppb
2013-07-24DH*A1307509-06B1.70 ppb
2013-07-24DH*A1307509-07B7.03 ppb
2013-07-24DH*A1307509-08B2.62 ppb
2013-07-24DH*A1307509-09B2.60 ppb
2013-07-24DH*A1307509-10B1.71 ppb
2013-07-24DH*A1307509-11BND
2013-10-10DH*A1310272-08B4.58 ppb
2013-10-10DH*A1310272-11B3.58 ppb
2013-10-11DH*A1310272-03B2.88 ppb
2013-10-11DH*A1310272-05B2.87 ppb
2013-10-11DH*A1310272-06B9.57 ppb
2013-10-11DH*A1310272-07B14.2 ppb
2013-10-11DH*A1310272-09B4.22 ppb
2013-10-11DH*A1310272-10B4.44 ppb
2014-01-21DH*A1401256-08B3.29 ppb
2014-01-21DH*A1401256-11B1.61 ppb
2014-01-23DH*A1401256-03B2.15 ppb
2014-01-23DH*A1401256-05B2.18 ppb
2014-01-23DH*A1401256-06B3.34 ppb
2014-01-23DH*A1401256-07B9.87 ppb
2014-01-23DH*A1401256-09B2.43 ppb
2014-01-23DH*A1401256-10B3.77 ppb
2014-04-15DH*A1404326-03B1.97 ppb
2014-04-15DH*A1404326-04BND
2014-04-15DH*A1404326-05B5.36 ppb
2014-04-15DH*A1404326-07B10.6 ppb
2014-04-15DH*A1404326-08BND
2014-04-15DH*A1404326-09BND
2014-04-15DH*A1404326-10BND
2014-04-15DH*A1404326-11B3.00 ppb
2014-07-24DH*A1407502-03B2.05 ppb
2014-07-24DH*A1407502-05B1.43 ppb
2014-07-24DH*A1407502-06B2.36 ppb
2014-07-24DH*A1407502-07B3.46 ppb
2014-07-24DH*A1407502-08B4.71 ppb
2014-07-24DH*A1407502-09B3.80 ppb
2014-07-24DH*A1407502-10B2.84 ppb
2014-07-24DH*A1407502-11B2.48 ppb
2014-10-20DH*31267413.70 ppb
2014-10-20DH*31267422.00 ppb
2014-10-21DH*31275161.90 ppb
2014-10-21DH*31275172.60 ppb
2014-10-21DH*31275183.70 ppb
2014-10-21DH*312751910.00 ppb
2014-10-21DH*31275202.60 ppb
2014-10-21DH*31275214.00 ppb
2015-01-21DH*A1501311-03B2.31 ppb
2015-01-21DH*A1501311-05B1.56 ppb
2015-01-21DH*A1501311-06BND
2015-01-21DH*A1501311-07B18.9 ppb
2015-01-21DH*A1501311-09B1.67 ppb
2015-01-21DH*A1501311-10BND
2015-01-23DH*A1502139-01B2.16 ppb
2015-01-23DH*A1502139-02BND
2015-04-15DH*280-68081-116.0 ppb
2015-04-15DH*280-68081-22.50 ppb
2015-04-27DH*280-68543-12.50 ppb
2015-04-27DH*280-68544-14.30 ppb
2015-04-27DH*280-68544-27.10 ppb
2015-04-27DH*280-68544-33.30 ppb
2015-04-27DH*280-68544-42.40 ppb
2015-04-29DH*280-68668-12.00 ppb
2015-07-06DH*32820761.20 ppb
2015-07-06DH*32820776.20 ppb
2015-07-06DH*32820782.40 ppb
2015-07-06DH*32820792.40 ppb
2015-07-06DH*32820802.80 ppb
2015-07-06DH*3282081ND
2015-07-07DH*32820842.30 ppb
2015-07-07DH*32820852.20 ppb
2015-10-19DH*280-75754-13.00 ppb
2015-10-19DH*280-75754-22.10 ppb
2015-10-212H*33458921.80 ppb
2015-10-21DH*33458641.30 ppb
2015-10-21DH*3345894ND
2015-10-21DH*33458962.40 ppb
2015-10-21DH*33458982.60 ppb
2015-10-21DH*334590034.0 ppb
2015-11-04DH*280-76487-11.40 ppb
2016-01-19DH*280-79112-11.70 ppb
2016-01-19DH*280-79112-23.10 ppb
2016-01-19DH*280-79112-31.50 ppb
2016-01-19DH*280-79113-11.60 ppb
2016-01-20DH*280-79144-1ND
2016-01-20DH*280-79144-22.10 ppb
2016-01-20DH*280-79144-31.60 ppb
2016-01-20DH*280-79144-4ND
2016-04-05DH*34267652.00 ppb
2016-04-06DH*280-81769-12.30 ppb
2016-04-06DH*280-81769-21.50 ppb
2016-04-06DH*280-81769-32.40 ppb
2016-04-06DH*280-81769-42.40 ppb
2016-04-06DH*280-81769-52.00 ppb
2016-04-06DH*280-81769-62.50 ppb
2016-04-06DH*280-81769-7ND
2016-07-05DH*280-85351-12.00 ppb
2016-07-05DH*280-85352-14.20 ppb
2016-07-05DH*280-85352-2ND
2016-07-05DH*280-85352-3ND
2016-07-06DH*280-85379-12.40 ppb
2016-07-06DH*280-85379-21.90 ppb
2016-07-06DH*280-85379-32.90 ppb
2016-07-06DH*280-85379-42.40 ppb
2016-07-21DH*280-86083-12.40 ppb
2016-10-03DH*280-89295-12.40 ppb
2016-10-03DH*280-89295-2ND
2016-10-03DH*280-89295-43.30 ppb
2016-10-04DH*280-89297-11.90 ppb
2016-10-24DH*35722782.10 ppb
2016-10-24DH*35722801.50 ppb
2016-10-24DH*35722831.80 ppb
2016-10-24DH*35722856.60 ppb
2016-10-24DH*35722872.30 ppb
2017-01-18DH*36242381.60 ppb
2017-01-18DH*36242451.20 ppb
2017-01-19DH*440-174639-11.70 ppb
2017-01-27DH*440-175162-1ND
2017-01-27DH*440-175162-22.20 ppb
2017-01-27DH*440-175162-32.20 ppb
2017-01-27DH*440-175162-41.90 ppb
2017-01-27DH*440-175162-52.00 ppb
2017-01-27DH*440-175162-6ND
2017-04-11DH*36736842.30 ppb
2017-04-11DH*36736861.30 ppb
2017-04-11DH*36736891.20 ppb
2017-04-12DH*3674402ND
2017-04-12DH*36744051.70 ppb
2017-04-19DH*36790911.40 ppb
2017-04-19DH*36790931.90 ppb
2017-04-19DH*36790951.70 ppb
2017-04-19DH*36790972.50 ppb
2017-08-16DH*37608661.40 ppb
2017-08-16DH*37609321.20 ppb
2017-08-16DH*37609341.40 ppb
2017-08-16DH*37609364.50 ppb
2017-08-16DH*37609382.20 ppb
2017-08-16DH*37609403.40 ppb
2017-08-16DH*37609422.10 ppb
2017-08-16DH*37609446.30 ppb
2017-08-16DH*37609463.10 ppb
2017-10-10DH*37982812.40 ppb
2017-10-10DH*37982831.40 ppb
2017-10-24DH*38080471.40 ppb
2017-10-24DH*38080502.00 ppb
2017-10-25DH*38089621.60 ppb
2017-10-25DH*38089653.00 ppb
2017-10-25DH*38089672.00 ppb
2017-10-25DH*38089693.10 ppb