Dichloroacetic acid
City of Billings
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 10.8 ppb | 37 | 37 | 3.50 ppb - 23.5 ppb |
2015 | 11.0 ppb | 36 | 36 | 3.00 ppb - 22.0 ppb |
2016 | 11.6 ppb | 36 | 36 | 2.30 ppb - 21.0 ppb |
2017 | 13.1 ppb | 34 | 34 | 4.80 ppb - 22.0 ppb |
2018 | 19.1 ppb | 36 | 36 | 6.30 ppb - 37.0 ppb |
2019 | 14.3 ppb | 36 | 36 | 4.10 ppb - 27.0 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 |
---|---|---|
2014-02-10 | 10257526002 | 4.50 ppb |
2014-02-10 | 10257526003 | 3.50 ppb |
2014-02-10 | 10257526004 | 5.10 ppb |
2014-02-10 | 10257526006 | 4.40 ppb |
2014-02-11 | 10257526005 | 4.60 ppb |
2014-02-11 | 10257526007 | 4.10 ppb |
2014-02-12 | 10257526001 | 4.30 ppb |
2014-02-12 | 10257526008 | 4.00 ppb |
2014-05-12 | 10267141003 | 16.8 ppb |
2014-05-12 | 10267141004 | 21.3 ppb |
2014-05-12 | 10267141006 | 19.7 ppb |
2014-05-12 | B14051004-001 | 15.0 ppb |
2014-05-12 | B14051004-001B | 15.0 ppb |
2014-05-13 | 10267141002 | 21.0 ppb |
2014-05-13 | 10267141005 | 23.5 ppb |
2014-05-13 | 10267141007 | 19.0 ppb |
2014-05-14 | 10267141001 | 22.7 ppb |
2014-05-14 | 10267141008 | 19.9 ppb |
2014-08-11 | 10277481003 | 9.80 ppb |
2014-08-11 | 10277481004 | 9.50 ppb |
2014-08-11 | B14081054-001E | 12.0 ppb |
2014-08-12 | 10277481005 | 7.60 ppb |
2014-08-12 | 10277481006 | 10.7 ppb |
2014-08-12 | 10277481007 | 9.50 ppb |
2014-08-13 | 10277481001 | 12.3 ppb |
2014-08-13 | 10277481002 | 3.70 ppb |
2014-08-13 | 10277481008 | 10.2 ppb |
2014-09-02 | B14090072-001B | 12.0 ppb |
2014-11-12 | B14110966-001B | 11.0 ppb |
2014-11-12 | B14110966-002B | 8.60 ppb |
2014-11-12 | B14110966-003B | 8.50 ppb |
2014-11-12 | B14110966-004B | 12.0 ppb |
2014-11-12 | B14110966-005B | 4.60 ppb |
2014-11-12 | B14110966-006B | 9.50 ppb |
2014-11-12 | B14110966-007B | 6.90 ppb |
2014-11-12 | B14110966-008B | 8.60 ppb |
2014-11-12 | B14110966-009B | 4.70 ppb |
2015-02-09 | B15020974-001E | 5.40 ppb |
2015-02-09 | B15020974-002B | 10.00 ppb |
2015-02-09 | B15020974-003B | 11.0 ppb |
2015-02-09 | B15020974-004B | 5.60 ppb |
2015-02-10 | B15020974-005B | 7.10 ppb |
2015-02-10 | B15020974-006B | 12.0 ppb |
2015-02-10 | B15020974-007B | 11.0 ppb |
2015-02-11 | B15020974-008B | 6.90 ppb |
2015-02-11 | B15020974-009B | 10.00 ppb |
2015-05-11 | B15051144-003B | 13.0 ppb |
2015-05-11 | B15051144-004B | 17.0 ppb |
2015-05-11 | B15051144-006B | 12.0 ppb |
2015-05-11 | B15051144-009B | 9.10 ppb |
2015-05-12 | B15051144-002B | 18.0 ppb |
2015-05-12 | B15051144-005B | 18.0 ppb |
2015-05-12 | B15051144-007B | 12.0 ppb |
2015-05-13 | B15051144-001B | 12.0 ppb |
2015-05-13 | B15051144-008B | 13.0 ppb |
2015-08-10 | B15080796-002B | 16.0 ppb |
2015-08-10 | B15080796-004B | 21.0 ppb |
2015-08-10 | B15080796-005B | 9.90 ppb |
2015-08-10 | B15080796-006B | 19.0 ppb |
2015-08-10 | B15080796-007B | 19.0 ppb |
2015-08-10 | B15080796-008B | 22.0 ppb |
2015-08-10 | B15080796-009B | 21.0 ppb |
2015-08-10 | B15080796-010B | 20.0 ppb |
2015-08-11 | B15080910-001B | 8.20 ppb |
2015-11-09 | B15110678-001B | 4.30 ppb |
2015-11-09 | B15110678-002B | 5.00 ppb |
2015-11-09 | B15110678-003B | 3.00 ppb |
2015-11-09 | B15110678-004B | 5.00 ppb |
2015-11-09 | B15110678-005B | 4.90 ppb |
2015-11-09 | B15110678-006B | 3.30 ppb |
2015-11-09 | B15110678-007B | 4.90 ppb |
2015-11-09 | B15110678-008B | 3.60 ppb |
2015-11-09 | B15110678-009B | 3.80 ppb |
2016-02-08 | B16020890-001E | 3.80 ppb |
2016-02-08 | B16020890-004B | 4.00 ppb |
2016-02-08 | B16020890-005B | 8.80 ppb |
2016-02-08 | B16020890-007B | 6.50 ppb |
2016-02-09 | B16020890-003B | 7.30 ppb |
2016-02-09 | B16020890-006B | 7.20 ppb |
2016-02-09 | B16020890-008B | 5.40 ppb |
2016-02-10 | B16020890-002B | 5.90 ppb |
2016-02-10 | B16020890-009B | 2.30 ppb |
2016-05-09 | B16051069-005B | 20.0 ppb |
2016-05-10 | B16051069-001B | 11.0 ppb |
2016-05-10 | B16051069-003B | 21.0 ppb |
2016-05-11 | B16051069-002B | 19.0 ppb |
2016-05-11 | B16051069-009B | 19.0 ppb |
2016-05-26 | B16052073-001B | 16.0 ppb |
2016-05-26 | B16052073-002B | 15.0 ppb |
2016-05-26 | B16052073-003B | 16.0 ppb |
2016-05-26 | B16052073-004B | 16.0 ppb |
2016-08-08 | B16081057-001B | 11.0 ppb |
2016-08-08 | B16081057-002B | 15.0 ppb |
2016-08-08 | B16081057-003B | 18.0 ppb |
2016-08-08 | B16081057-004B | 19.0 ppb |
2016-08-09 | B16081057-005B | 5.40 ppb |
2016-08-09 | B16081057-006B | 5.10 ppb |
2016-08-09 | B16081057-007B | 15.0 ppb |
2016-08-10 | B16081057-008B | 19.0 ppb |
2016-08-10 | B16081057-009B | 12.0 ppb |
2016-11-09 | B16110820-001B | 11.0 ppb |
2016-11-09 | B16110820-002B | 18.0 ppb |
2016-11-09 | B16110820-003B | 3.50 ppb |
2016-11-09 | B16110820-004B | 2.60 ppb |
2016-11-09 | B16110820-005B | 9.30 ppb |
2016-11-09 | B16110820-006B | 4.20 ppb |
2016-11-09 | B16110820-007B | 18.0 ppb |
2016-11-09 | B16110820-008B | 15.0 ppb |
2016-11-09 | B16110820-009B | 11.0 ppb |
2017-02-06 | B17020497-005B | 4.80 ppb |
2017-02-06 | B17020497-006B | 13.0 ppb |
2017-02-06 | B17020497-008B | 6.50 ppb |
2017-02-07 | B17020497-004B | 8.60 ppb |
2017-02-07 | B17020497-007B | 9.40 ppb |
2017-02-07 | B17020497-009B | 5.40 ppb |
2017-02-08 | B17020497-003B | 7.00 ppb |
2017-02-08 | B17020497-010B | 7.40 ppb |
2017-05-08 | B17051019-001E | 14.0 ppb |
2017-05-08 | B17051019-002B | 22.0 ppb |
2017-05-08 | B17051019-003B | 19.0 ppb |
2017-05-08 | B17051019-004B | 20.0 ppb |
2017-05-09 | B17051019-005B | 22.0 ppb |
2017-05-09 | B17051019-006B | 19.0 ppb |
2017-05-09 | B17051019-007B | 22.0 ppb |
2017-05-10 | B17051019-008B | 20.0 ppb |
2017-05-10 | B17051019-009B | 21.0 ppb |
2017-08-07 | B17081099-004B | 12.0 ppb |
2017-08-07 | B17081099-005B | 8.00 ppb |
2017-08-07 | B17081099-007B | 13.0 ppb |
2017-08-08 | B17081099-003B | 8.60 ppb |
2017-08-08 | B17081099-006B | 9.30 ppb |
2017-08-08 | B17081099-008B | 13.0 ppb |
2017-08-09 | B17081099-002B | 13.0 ppb |
2017-08-09 | B17081099-009B | 13.0 ppb |
2017-11-06 | B17110842-001B | 9.90 ppb |
2017-11-06 | B17110842-002B | 13.0 ppb |
2017-11-06 | B17110842-003B | 14.0 ppb |
2017-11-07 | B17110842-004B | 10.00 ppb |
2017-11-07 | B17110842-005B | 14.0 ppb |
2017-11-08 | B17110842-006B | 16.0 ppb |
2017-11-08 | B17110842-007B | 18.0 ppb |
2017-11-08 | B17110842-008B | 9.10 ppb |
2017-11-09 | B17110842-009B | 12.0 ppb |
2018-02-05 | B18020545-001H | 6.90 ppb |
2018-02-05 | B18020545-004B | 11.0 ppb |
2018-02-05 | B18020545-005B | 8.50 ppb |
2018-02-06 | B18020545-006B | 14.0 ppb |
2018-02-06 | B18020545-007B | 14.0 ppb |
2018-02-06 | B18020545-008B | 14.0 ppb |
2018-02-06 | B18020545-009B | 13.0 ppb |
2018-02-07 | B18020545-010B | 11.0 ppb |
2018-02-07 | B18020545-011B | 12.0 ppb |
2018-05-07 | B18051134-001H | 26.0 ppb |
2018-05-07 | B18051134-003B | 27.0 ppb |
2018-05-07 | B18051134-004B | 33.0 ppb |
2018-05-08 | B18051134-005B | 33.0 ppb |
2018-05-08 | B18051134-006B | 36.0 ppb |
2018-05-08 | B18051134-007B | 36.0 ppb |
2018-05-08 | B18051134-008B | 37.0 ppb |
2018-05-09 | B18051134-009B | 36.0 ppb |
2018-05-09 | B18051134-010B | 34.0 ppb |
2018-05-09 | B18051134-011B | 36.0 ppb |
2018-08-06 | B18080949-001H | 16.0 ppb |
2018-08-06 | B18080949-003B | 23.0 ppb |
2018-08-06 | B18080949-004B | 20.0 ppb |
2018-08-07 | B18080949-005B | 12.0 ppb |
2018-08-07 | B18080949-006B | 14.0 ppb |
2018-08-07 | B18080949-007B | 15.0 ppb |
2018-08-08 | B18080949-008B | 21.0 ppb |
2018-08-08 | B18080949-009B | 22.0 ppb |
2018-08-08 | B18080949-010B | 22.0 ppb |
2018-11-07 | B18110767-003B | 6.30 ppb |
2018-11-07 | B18110767-004B | 14.0 ppb |
2018-11-07 | B18110767-005B | 15.0 ppb |
2018-11-07 | B18110767-006B | 11.0 ppb |
2018-11-07 | B18110767-007B | 9.90 ppb |
2018-11-08 | B18110767-008B | 9.60 ppb |
2018-11-08 | B18110767-009B | 11.0 ppb |
2018-11-08 | B18110767-010B | 6.30 ppb |
2019-02-11 | B19020608-001H | 6.80 ppb |
2019-02-11 | B19020608-002B | 13.0 ppb |
2019-02-11 | B19020608-003B | 11.0 ppb |
2019-02-11 | B19020608-004B | 8.60 ppb |
2019-02-11 | B19020608-005B | 12.0 ppb |
2019-02-11 | B19020608-006B | 11.0 ppb |
2019-02-11 | B19020608-007B | 13.0 ppb |
2019-02-11 | B19020608-008B | 11.0 ppb |
2019-02-11 | B19020608-009B | 10.00 ppb |
2019-05-13 | B19051523-001B | 17.0 ppb |
2019-05-13 | B19051523-004B | 20.0 ppb |
2019-05-13 | B19051523-009B | 23.0 ppb |
2019-05-14 | B19051523-003B | 24.0 ppb |
2019-05-14 | B19051523-006B | 27.0 ppb |
2019-05-14 | B19051523-008B | 22.0 ppb |
2019-05-15 | B19051523-002B | 23.0 ppb |
2019-05-15 | B19051523-005B | 25.0 ppb |
2019-05-15 | B19051523-007B | 24.0 ppb |
2019-08-12 | B19081432-004B | 19.0 ppb |
2019-08-12 | B19081432-009B | 19.0 ppb |
2019-08-13 | B19081432-003B | 11.0 ppb |
2019-08-13 | B19081432-006B | 12.0 ppb |
2019-08-13 | B19081432-008B | 15.0 ppb |
2019-08-14 | B19081432-002B | 22.0 ppb |
2019-08-14 | B19081432-005B | 21.0 ppb |
2019-08-14 | B19081432-007B | 20.0 ppb |
2019-08-14 | B19081432-010A | 16.0 ppb |
2019-11-13 | B19111116-001B | 5.30 ppb |
2019-11-13 | B19111116-003B | 9.30 ppb |
2019-11-13 | B19111116-004B | 4.70 ppb |
2019-11-13 | B19111116-005B | 6.90 ppb |
2019-11-13 | B19111116-006B | 4.10 ppb |
2019-11-13 | B19111116-007B | 4.10 ppb |
2019-11-13 | B19111116-008B | 9.80 ppb |
2019-11-13 | B19111116-009B | 8.20 ppb |
2019-11-13 | B19111116-010B | 6.90 ppb |