Dichloroacetic acid
Truckee Meadows Water Authority
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.
289
Samples
0
Samples exceeding legal limit (MCL)
268
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 8.17 ppb | 49 | 48 | ND - 23.0 ppb |
| 2015 | 8.33 ppb | 48 | 48 | 1.20 ppb - 18.0 ppb |
| 2016 | 10.0 ppb | 48 | 45 | ND - 27.0 ppb |
| 2017 | 7.15 ppb | 48 | 42 | ND - 18.0 ppb |
| 2018 | 7.69 ppb | 48 | 45 | ND - 15.0 ppb |
| 2019 | 8.25 ppb | 48 | 40 | ND - 19.9 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 |
|---|---|---|
| 2014-02-18 | A4B1676-01 | 11.0 ppb |
| 2014-02-18 | A4B1676-02 | 10.00 ppb |
| 2014-02-18 | A4B1676-03 | 8.60 ppb |
| 2014-02-18 | A4B1676-04 | 12.0 ppb |
| 2014-02-18 | A4B1676-05 | 12.0 ppb |
| 2014-02-18 | A4B1676-11 | 7.80 ppb |
| 2014-02-18 | A4B1676-12 | 10.00 ppb |
| 2014-02-20 | A4B1676-06 | 8.70 ppb |
| 2014-02-20 | A4B1676-07 | 9.70 ppb |
| 2014-02-20 | A4B1676-08 | 7.10 ppb |
| 2014-02-20 | A4B1676-09 | 9.50 ppb |
| 2014-02-20 | A4B1676-10 | 8.90 ppb |
| 2014-05-13 | A4E1375-01 | 9.20 ppb |
| 2014-05-13 | A4E1375-02 | 13.0 ppb |
| 2014-05-13 | A4E1375-03 | 15.0 ppb |
| 2014-05-13 | A4E1375-04 | 16.0 ppb |
| 2014-05-13 | A4E1375-05 | 12.0 ppb |
| 2014-05-13 | A4E1375-06 | 9.70 ppb |
| 2014-05-13 | A4E1375-07 | 12.0 ppb |
| 2014-05-13 | A4E1375-08 | 16.0 ppb |
| 2014-05-13 | A4E1375-09 | 23.0 ppb |
| 2014-05-13 | A4E1375-10 | 14.0 ppb |
| 2014-05-13 | A4E1375-11 | 9.80 ppb |
| 2014-05-13 | A4E1375-12 | 12.0 ppb |
| 2014-08-12 | 201408150519 | ND |
| 2014-08-12 | 201408150520 | 4.60 ppb |
| 2014-08-12 | 201408150521 | 5.30 ppb |
| 2014-08-12 | 201408150522 | 2.30 ppb |
| 2014-08-12 | 201408150523 | 3.70 ppb |
| 2014-08-12 | 201408150524 | 5.20 ppb |
| 2014-08-12 | 201408150525 | 4.50 ppb |
| 2014-08-12 | 201408150526 | 5.00 ppb |
| 2014-08-12 | 201408150527 | 4.40 ppb |
| 2014-08-12 | 201408150528 | 6.80 ppb |
| 2014-08-12 | 201408150529 | 5.70 ppb |
| 2014-08-12 | 201408150530 | 6.00 ppb |
| 2014-08-19 | 201408230095 | 3.40 ppb |
| 2014-11-12 | 201411150180 | 6.30 ppb |
| 2014-11-12 | 201411150181 | 3.80 ppb |
| 2014-11-12 | 201411150182 | 7.90 ppb |
| 2014-11-12 | 201411150183 | 8.20 ppb |
| 2014-11-12 | 201411150184 | 6.30 ppb |
| 2014-11-12 | 201411150185 | 6.00 ppb |
| 2014-11-12 | 201411150186 | 6.00 ppb |
| 2014-11-12 | 201411150187 | 4.20 ppb |
| 2014-11-12 | 201411150188 | 2.60 ppb |
| 2014-11-12 | 201411150189 | 2.90 ppb |
| 2014-11-12 | 201411150190 | 4.90 ppb |
| 2014-11-12 | 201411150191 | 7.20 ppb |
| 2015-02-17 | 1502002-01 | 15.0 ppb |
| 2015-02-17 | 1502002-02 | 8.00 ppb |
| 2015-02-17 | 1502002-03 | 13.0 ppb |
| 2015-02-17 | 1502002-04 | 14.0 ppb |
| 2015-02-17 | 1502002-05 | 8.60 ppb |
| 2015-02-17 | 1502002-06 | 12.0 ppb |
| 2015-02-17 | 1502002-07 | 10.00 ppb |
| 2015-02-17 | 1502002-08 | 15.0 ppb |
| 2015-02-17 | 1502002-09 | 16.0 ppb |
| 2015-02-17 | 1502002-10 | 15.0 ppb |
| 2015-02-17 | 1502002-11 | 14.0 ppb |
| 2015-02-17 | 1502002-12 | 18.0 ppb |
| 2015-05-19 | 1505022-01 | 11.0 ppb |
| 2015-05-19 | 1505022-02 | 4.80 ppb |
| 2015-05-19 | 1505022-03 | 11.0 ppb |
| 2015-05-19 | 1505022-04 | 11.0 ppb |
| 2015-05-19 | 1505022-05 | 11.0 ppb |
| 2015-05-19 | 1505022-06 | 9.60 ppb |
| 2015-05-19 | 1505022-07 | 12.0 ppb |
| 2015-05-19 | 1505022-08 | 14.0 ppb |
| 2015-05-19 | 1505022-09 | 9.80 ppb |
| 2015-05-19 | 1505022-10 | 18.0 ppb |
| 2015-05-19 | 1505022-11 | 5.60 ppb |
| 2015-05-19 | 1505022-12 | 9.40 ppb |
| 2015-08-17 | 1508038-01 | 4.50 ppb |
| 2015-08-17 | 1508038-02 | 3.20 ppb |
| 2015-08-17 | 1508038-03 | 3.30 ppb |
| 2015-08-17 | 1508038-04 | 1.60 ppb |
| 2015-08-17 | 1508038-05 | 8.10 ppb |
| 2015-08-17 | 1508038-06 | 5.00 ppb |
| 2015-08-17 | 1508038-07 | 5.10 ppb |
| 2015-08-17 | 1508038-08 | 1.20 ppb |
| 2015-08-17 | 1508038-09 | 1.60 ppb |
| 2015-08-17 | 1508038-10 | 3.10 ppb |
| 2015-08-17 | 1508038-11 | 2.60 ppb |
| 2015-08-17 | 1508038-12 | 3.60 ppb |
| 2015-11-09 | 1511013-01EUR | 7.70 ppb |
| 2015-11-09 | 1511013-02EUR | 4.40 ppb |
| 2015-11-09 | 1511013-03EUR | 1.80 ppb |
| 2015-11-09 | 1511013-04EUR | 6.10 ppb |
| 2015-11-09 | 1511013-05EUR | 9.40 ppb |
| 2015-11-09 | 1511013-06EUR | 7.70 ppb |
| 2015-11-09 | 1511013-07EUR | 4.80 ppb |
| 2015-11-09 | 1511013-08EUR | 4.70 ppb |
| 2015-11-09 | 1511013-09EUR | 3.40 ppb |
| 2015-11-09 | 1511013-10EUR | 3.00 ppb |
| 2015-11-09 | 1511013-11EUR | 7.00 ppb |
| 2015-11-09 | 1511013-12EUR | 11.0 ppb |
| 2016-02-09 | 1602009-01EUR | 14.0 ppb |
| 2016-02-09 | 1602009-02EUR | 9.30 ppb |
| 2016-02-09 | 1602009-03EUR | 13.0 ppb |
| 2016-02-09 | 1602009-04EUR | 14.0 ppb |
| 2016-02-09 | 1602009-05EUR | 13.0 ppb |
| 2016-02-09 | 1602009-06EUR | 9.70 ppb |
| 2016-02-09 | 1602009-07EUR | 12.0 ppb |
| 2016-02-09 | 1602009-08EUR | 13.0 ppb |
| 2016-02-09 | 1602009-09EUR | 15.0 ppb |
| 2016-02-09 | 1602009-10EUR | 14.0 ppb |
| 2016-02-09 | 1602009-11EUR | 8.10 ppb |
| 2016-02-09 | 1602009-12EUR | 20.0 ppb |
| 2016-05-09 | 1605007-01EUR | 14.0 ppb |
| 2016-05-09 | 1605007-02EUR | 10.00 ppb |
| 2016-05-09 | 1605007-03EUR | 18.0 ppb |
| 2016-05-09 | 1605007-04EUR | 20.0 ppb |
| 2016-05-09 | 1605007-05EUR | 17.0 ppb |
| 2016-05-09 | 1605007-06EUR | 16.0 ppb |
| 2016-05-09 | 1605007-07EUR | 17.0 ppb |
| 2016-05-09 | 1605007-08EUR | 19.0 ppb |
| 2016-05-09 | 1605007-09EUR | 22.0 ppb |
| 2016-05-09 | 1605007-10EUR | 27.0 ppb |
| 2016-05-09 | 1605007-11EUR | 12.0 ppb |
| 2016-05-09 | 1605007-12EUR | 17.0 ppb |
| 2016-08-09 | 1608020-01EUR | ND |
| 2016-08-09 | 1608020-02EUR | 8.20 ppb |
| 2016-08-09 | 1608020-03EUR | 1.60 ppb |
| 2016-08-09 | 1608020-04EUR | 3.30 ppb |
| 2016-08-09 | 1608020-05EUR | 6.90 ppb |
| 2016-08-09 | 1608020-06EUR | 3.20 ppb |
| 2016-08-09 | 1608020-07EUR | 5.30 ppb |
| 2016-08-09 | 1608020-08EUR | 4.20 ppb |
| 2016-08-09 | 1608020-09EUR | 8.30 ppb |
| 2016-08-09 | 1608020-10EUR | 5.10 ppb |
| 2016-08-09 | 1608020-11EUR | 3.40 ppb |
| 2016-08-09 | 1608020-12EUR | ND |
| 2016-11-08 | 1611004-01EUR | 1.10 ppb |
| 2016-11-08 | 1611004-02EUR | 16.0 ppb |
| 2016-11-08 | 1611004-03EUR | 4.30 ppb |
| 2016-11-08 | 1611004-04EUR | 1.50 ppb |
| 2016-11-08 | 1611004-05EUR | 5.80 ppb |
| 2016-11-08 | 1611004-06EUR | 1.10 ppb |
| 2016-11-08 | 1611004-07EUR | 8.00 ppb |
| 2016-11-08 | 1611004-08EUR | 12.0 ppb |
| 2016-11-08 | 1611004-09EUR | 7.50 ppb |
| 2016-11-08 | 1611004-10EUR | 1.40 ppb |
| 2016-11-08 | 1611004-11EUR | 9.40 ppb |
| 2016-11-08 | 1611004-12EUR | ND |
| 2017-02-07 | 1702003-01EUR | 14.0 ppb |
| 2017-02-07 | 1702003-02EUR | 15.0 ppb |
| 2017-02-07 | 1702003-03EUR | 15.0 ppb |
| 2017-02-07 | 1702003-04EUR | 4.40 ppb |
| 2017-02-07 | 1702003-05EUR | 16.0 ppb |
| 2017-02-07 | 1702003-06EUR | 16.0 ppb |
| 2017-02-07 | 1702003-07EUR | 12.0 ppb |
| 2017-02-07 | 1702003-08EUR | 15.0 ppb |
| 2017-02-07 | 1702003-09EUR | 11.0 ppb |
| 2017-02-07 | 1702003-10EUR | 16.0 ppb |
| 2017-02-07 | 1702003-11EUR | 18.0 ppb |
| 2017-02-07 | 1702003-12EUR | ND |
| 2017-05-09 | 1705019-01EUR | 12.0 ppb |
| 2017-05-09 | 1705019-02EUR | 11.0 ppb |
| 2017-05-09 | 1705019-03EUR | 12.0 ppb |
| 2017-05-09 | 1705019-04EUR | 11.0 ppb |
| 2017-05-09 | 1705019-05EUR | 15.0 ppb |
| 2017-05-09 | 1705019-06EUR | 13.0 ppb |
| 2017-05-09 | 1705019-07EUR | 5.60 ppb |
| 2017-05-09 | 1705019-08EUR | 11.0 ppb |
| 2017-05-09 | 1705019-09EUR | 12.0 ppb |
| 2017-05-09 | 1705019-10EUR | 2.00 ppb |
| 2017-05-09 | 1705019-11EUR | 9.10 ppb |
| 2017-05-09 | 1705019-12EUR | 1.40 ppb |
| 2017-08-09 | 1708009-01EUR | 3.50 ppb |
| 2017-08-09 | 1708009-02EUR | 6.20 ppb |
| 2017-08-09 | 1708009-03EUR | 4.30 ppb |
| 2017-08-09 | 1708009-04EUR | 7.80 ppb |
| 2017-08-09 | 1708009-05EUR | 6.70 ppb |
| 2017-08-09 | 1708009-06EUR | 4.40 ppb |
| 2017-08-09 | 1708009-07EUR | 5.20 ppb |
| 2017-08-09 | 1708009-08EUR | ND |
| 2017-08-09 | 1708009-09EUR | 8.10 ppb |
| 2017-08-09 | 1708009-10EUR | 1.10 ppb |
| 2017-08-09 | 1708009-11EUR | 1.40 ppb |
| 2017-08-09 | 1708009-12EUR | ND |
| 2017-11-07 | 1711020-01EUR | 1.80 ppb |
| 2017-11-07 | 1711020-02EUR | 2.60 ppb |
| 2017-11-07 | 1711020-03EUR | 4.60 ppb |
| 2017-11-07 | 1711020-04EUR | 5.40 ppb |
| 2017-11-07 | 1711020-05EUR | 2.80 ppb |
| 2017-11-07 | 1711020-06EUR | 1.000 ppb |
| 2017-11-07 | 1711020-07EUR | 2.50 ppb |
| 2017-11-07 | 1711020-08EUR | ND |
| 2017-11-07 | 1711020-09EUR | 5.30 ppb |
| 2017-11-07 | 1711020-10EUR | ND |
| 2017-11-07 | 1711020-11EUR | 1.20 ppb |
| 2017-11-07 | 1711020-12EUR | ND |
| 2018-02-13 | 1802014-01WET | 12.0 ppb |
| 2018-02-13 | 1802014-02WET | 11.0 ppb |
| 2018-02-13 | 1802014-03WET | 12.0 ppb |
| 2018-02-13 | 1802014-04WET | 13.0 ppb |
| 2018-02-13 | 1802014-05WET | 12.0 ppb |
| 2018-02-13 | 1802014-06WET | ND |
| 2018-02-13 | 1802014-07WET | 12.0 ppb |
| 2018-02-13 | 1802014-08WET | 12.0 ppb |
| 2018-02-13 | 1802014-09WET | 11.0 ppb |
| 2018-02-13 | 1802014-10WET | 15.0 ppb |
| 2018-02-13 | 1802014-11WET | 6.60 ppb |
| 2018-02-13 | 1802014-12WET | 12.0 ppb |
| 2018-05-08 | 1805023-01WET | 11.0 ppb |
| 2018-05-08 | 1805023-02WET | 11.0 ppb |
| 2018-05-08 | 1805023-03WET | 5.70 ppb |
| 2018-05-08 | 1805023-04WET | 11.0 ppb |
| 2018-05-08 | 1805023-05WET | 12.0 ppb |
| 2018-05-08 | 1805023-06WET | ND |
| 2018-05-08 | 1805023-07WET | 12.0 ppb |
| 2018-05-08 | 1805023-08WET | 11.0 ppb |
| 2018-05-08 | 1805023-09WET | 9.00 ppb |
| 2018-05-08 | 1805023-10WET | 3.60 ppb |
| 2018-05-08 | 1805023-11WET | 12.0 ppb |
| 2018-05-08 | 1805023-12WET | 8.40 ppb |
| 2018-08-08 | 1808014-01WEC | 5.90 ppb |
| 2018-08-08 | 1808014-02WEC | 6.60 ppb |
| 2018-08-08 | 1808014-03WEC | 3.20 ppb |
| 2018-08-08 | 1808014-04WEC | 7.50 ppb |
| 2018-08-08 | 1808014-05WEC | 4.10 ppb |
| 2018-08-08 | 1808014-06WEC | 2.30 ppb |
| 2018-08-08 | 1808014-07WEC | 4.60 ppb |
| 2018-08-08 | 1808014-08WEC | 1.80 ppb |
| 2018-08-08 | 1808014-09WEC | 7.60 ppb |
| 2018-08-08 | 1808014-10WEC | 3.40 ppb |
| 2018-08-08 | 1808014-11WEC | 2.60 ppb |
| 2018-08-08 | 1808014-12WEC | ND |
| 2018-11-15 | 1811013-01WEC | 4.70 ppb |
| 2018-11-15 | 1811013-02WEC | 11.0 ppb |
| 2018-11-15 | 1811013-03WEC | 5.30 ppb |
| 2018-11-15 | 1811013-04WEC | 8.50 ppb |
| 2018-11-15 | 1811013-05WEC | 5.20 ppb |
| 2018-11-15 | 1811013-06WEC | 8.00 ppb |
| 2018-11-15 | 1811013-07WEC | 10.00 ppb |
| 2018-11-15 | 1811013-08WEC | 5.70 ppb |
| 2018-11-15 | 1811013-09WEC | 2.90 ppb |
| 2018-11-15 | 1811013-10WEC | 13.0 ppb |
| 2018-11-15 | 1811013-11WEC | 3.00 ppb |
| 2018-11-15 | 1811013-12WEC | 6.90 ppb |
| 2019-02-12 | 1902014-01WET | 19.0 ppb |
| 2019-02-12 | 1902014-02WET | 15.0 ppb |
| 2019-02-12 | 1902014-03WET | 18.0 ppb |
| 2019-02-12 | 1902014-04WET | 14.0 ppb |
| 2019-02-12 | 1902014-05WET | 7.10 ppb |
| 2019-02-12 | 1902014-06WET | ND |
| 2019-02-12 | 1902014-07WET | 15.0 ppb |
| 2019-02-12 | 1902014-08WET | ND |
| 2019-02-12 | 1902014-09WET | 17.0 ppb |
| 2019-02-12 | 1902014-10WET | 18.0 ppb |
| 2019-02-12 | 1902014-11WET | 17.0 ppb |
| 2019-02-12 | 1902014-12WET | 17.0 ppb |
| 2019-05-08 | 1905009-01 | 19.9 ppb |
| 2019-05-08 | 1905009-02 | 6.50 ppb |
| 2019-05-08 | 1905009-03 | 13.1 ppb |
| 2019-05-08 | 1905009-04 | 9.96 ppb |
| 2019-05-08 | 1905009-05 | 1.73 ppb |
| 2019-05-08 | 1905009-06 | ND |
| 2019-05-08 | 1905009-07 | 14.0 ppb |
| 2019-05-08 | 1905009-08 | 7.36 ppb |
| 2019-05-08 | 1905009-09 | 19.2 ppb |
| 2019-05-08 | 1905009-10 | 5.66 ppb |
| 2019-05-08 | 1905009-11 | 17.2 ppb |
| 2019-05-08 | 1905009-12 | 13.7 ppb |
| 2019-08-21 | 1908012-01WET | 4.20 ppb |
| 2019-08-21 | 1908012-02WET | ND |
| 2019-08-21 | 1908012-03WET | 3.30 ppb |
| 2019-08-21 | 1908012-04WET | 6.80 ppb |
| 2019-08-21 | 1908012-05WET | 5.40 ppb |
| 2019-08-21 | 1908012-06WET | ND |
| 2019-08-21 | 1908012-07WET | 6.40 ppb |
| 2019-08-21 | 1908012-08WET | ND |
| 2019-08-21 | 1908012-09WET | 3.00 ppb |
| 2019-08-21 | 1908012-10WET | ND |
| 2019-08-21 | 1908012-11WET | ND |
| 2019-08-21 | 1908012-12WET | 2.60 ppb |
| 2019-11-04 | 1911002-01 | 4.08 ppb |
| 2019-11-04 | 1911002-02 | 9.24 ppb |
| 2019-11-04 | 1911002-03 | 7.90 ppb |
| 2019-11-04 | 1911002-04 | 8.46 ppb |
| 2019-11-04 | 1911002-05 | 1.25 ppb |
| 2019-11-04 | 1911002-06 | 9.12 ppb |
| 2019-11-04 | 1911002-07 | 10.8 ppb |
| 2019-11-04 | 1911002-08 | 5.41 ppb |
| 2019-11-04 | 1911002-09 | 4.56 ppb |
| 2019-11-04 | 1911002-10 | 4.97 ppb |
| 2019-11-04 | 1911002-11 | 8.67 ppb |
| 2019-11-04 | 1911002-12 | 4.26 ppb |