Dichloroacetic acid
Newark Water Department
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.
293
Samples
0
Samples exceeding legal limit (MCL)
286
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2012 | 15.2 ppb | 53 | 52 | ND - 30.0 ppb |
| 2013 | 19.5 ppb | 48 | 48 | 1.20 ppb - 37.0 ppb |
| 2014 | 23.4 ppb | 48 | 46 | ND - 47.3 ppb |
| 2015 | 18.7 ppb | 48 | 48 | 3.75 ppb - 33.7 ppb |
| 2016 | 23.7 ppb | 48 | 48 | 2.23 ppb - 37.3 ppb |
| 2017 | 21.7 ppb | 48 | 44 | ND - 38.2 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 |
|---|---|---|
| 2012-03-08 | 12031878-001 | 13.5 ppb |
| 2012-03-08 | 12031878-002 | 14.4 ppb |
| 2012-03-08 | 12031878-004 | 14.9 ppb |
| 2012-03-08 | 12031878-003 | 14.3 ppb |
| 2012-03-08 | 12031878-005 | 14.2 ppb |
| 2012-04-11 | 0004528-08 | 21.8 ppb |
| 2012-04-11 | 0004528-10 | 18.0 ppb |
| 2012-04-11 | 0004528-09 | 20.7 ppb |
| 2012-04-11 | 0004528-11 | 19.9 ppb |
| 2012-04-11 | 0004528-12 | 9.90 ppb |
| 2012-04-11 | 0004528-07 | 23.4 ppb |
| 2012-04-11 | 0004528-06 | 10.2 ppb |
| 2012-04-11 | 0004528-05 | 21.4 ppb |
| 2012-04-11 | 0004528-04 | 20.8 ppb |
| 2012-04-11 | 0004528-03 | 19.4 ppb |
| 2012-04-11 | 0004528-02 | 18.7 ppb |
| 2012-04-11 | 0004528-01 | 21.7 ppb |
| 2012-07-11 | 0005938-08 | 21.1 ppb |
| 2012-07-11 | 0005938-10 | ND |
| 2012-07-11 | 0005938-09 | 14.7 ppb |
| 2012-07-11 | 0005938-11 | 7.10 ppb |
| 2012-07-11 | 0005938-12 | 1.000 ppb |
| 2012-07-11 | 0005938-06 | 16.9 ppb |
| 2012-07-11 | 0005938-05 | 4.50 ppb |
| 2012-07-11 | 0005938-07 | 9.40 ppb |
| 2012-07-11 | 0005938-04 | 3.20 ppb |
| 2012-07-11 | 0005938-03 | 17.2 ppb |
| 2012-07-11 | 0005938-02 | 16.9 ppb |
| 2012-07-11 | 0005938-01 | 19.3 ppb |
| 2012-09-20 | 0007187-08 | 11.0 ppb |
| 2012-09-20 | 0007187-10 | 8.00 ppb |
| 2012-09-20 | 0007187-09 | 11.0 ppb |
| 2012-09-20 | 0007185-01 | 6.00 ppb |
| 2012-09-20 | 0007185-02 | 12.0 ppb |
| 2012-09-20 | 0007187-06 | 6.00 ppb |
| 2012-09-20 | 0007187-05 | 6.00 ppb |
| 2012-09-20 | 0007187-07 | 6.00 ppb |
| 2012-09-20 | 0007187-04 | 6.00 ppb |
| 2012-09-20 | 0007187-03 | 7.00 ppb |
| 2012-09-20 | 0007187-02 | 5.00 ppb |
| 2012-09-20 | 0007187-01 | 10.00 ppb |
| 2012-12-13 | 0008467-08 | 27.0 ppb |
| 2012-12-13 | 0008467-10 | 26.0 ppb |
| 2012-12-13 | 0008467-09 | 26.0 ppb |
| 2012-12-13 | 0008467-11 | 30.0 ppb |
| 2012-12-13 | 0008467-12 | 29.0 ppb |
| 2012-12-13 | 0008467-06 | 23.0 ppb |
| 2012-12-13 | 0008467-05 | 13.0 ppb |
| 2012-12-13 | 0008467-07 | 18.0 ppb |
| 2012-12-13 | 0008467-04 | 22.0 ppb |
| 2012-12-13 | 0008467-03 | 21.0 ppb |
| 2012-12-13 | 0008467-02 | 23.0 ppb |
| 2012-12-13 | 0008467-01 | 23.0 ppb |
| 2013-03-12 | 0009729-08 | 34.0 ppb |
| 2013-03-12 | 0009729-10 | 34.0 ppb |
| 2013-03-12 | 0009729-09 | 33.0 ppb |
| 2013-03-12 | 0009729-11 | 36.0 ppb |
| 2013-03-12 | 0009729-12 | 33.0 ppb |
| 2013-03-12 | 0009729-06 | 34.0 ppb |
| 2013-03-12 | 0009729-05 | 10.00 ppb |
| 2013-03-12 | 0009729-07 | 34.0 ppb |
| 2013-03-12 | 0009729-04 | 35.0 ppb |
| 2013-03-12 | 0009729-03 | 33.0 ppb |
| 2013-03-12 | 0009729-02 | 37.0 ppb |
| 2013-03-12 | 0009729-01 | 32.0 ppb |
| 2013-06-11 | 0011365-08 | 27.0 ppb |
| 2013-06-11 | 0011365-10 | 29.0 ppb |
| 2013-06-11 | 0011365-09 | 27.0 ppb |
| 2013-06-11 | 0011365-11 | 28.0 ppb |
| 2013-06-11 | 0011365-12 | 27.0 ppb |
| 2013-06-11 | 0011365-06 | 26.0 ppb |
| 2013-06-11 | 0011365-05 | 11.0 ppb |
| 2013-06-11 | 0011365-07 | 23.0 ppb |
| 2013-06-11 | 0011365-04 | 26.0 ppb |
| 2013-06-11 | 0011365-03 | 26.0 ppb |
| 2013-06-11 | 0011365-02 | 29.0 ppb |
| 2013-06-11 | 0011365-01 | 26.0 ppb |
| 2013-09-11 | 0013035-08 | 15.0 ppb |
| 2013-09-11 | 0013035-10 | 24.0 ppb |
| 2013-09-11 | 0013035-09 | 17.0 ppb |
| 2013-09-11 | 0013035-11 | 18.0 ppb |
| 2013-09-11 | 0013035-12 | 11.0 ppb |
| 2013-09-11 | 0013035-06 | 4.00 ppb |
| 2013-09-11 | 0013035-05 | 5.00 ppb |
| 2013-09-11 | 0013035-07 | 5.00 ppb |
| 2013-09-11 | 0013035-04 | 11.0 ppb |
| 2013-09-11 | 0013035-03 | 9.00 ppb |
| 2013-09-11 | 0013035-02 | 9.00 ppb |
| 2013-09-11 | 0013035-01 | 8.00 ppb |
| 2013-12-11 | 0015007-08 | 10.2 ppb |
| 2013-12-11 | 0015007-10 | 9.50 ppb |
| 2013-12-11 | 0015007-09 | 8.30 ppb |
| 2013-12-11 | 0015007-11 | 7.80 ppb |
| 2013-12-11 | 0015007-12 | 9.00 ppb |
| 2013-12-11 | 0015007-06 | 9.00 ppb |
| 2013-12-11 | 0015007-05 | 1.20 ppb |
| 2013-12-11 | 0015007-07 | 16.9 ppb |
| 2013-12-11 | 0015007-04 | 8.70 ppb |
| 2013-12-11 | 0015007-03 | 8.90 ppb |
| 2013-12-11 | 0015007-02 | 8.60 ppb |
| 2013-12-11 | 0015007-01 | 10.2 ppb |
| 2014-03-11 | 340313045 | 24.1 ppb |
| 2014-03-11 | 340313049 | 30.0 ppb |
| 2014-03-11 | 340313047 | 29.0 ppb |
| 2014-03-11 | 340313051 | 27.0 ppb |
| 2014-03-11 | 340313053 | 27.3 ppb |
| 2014-03-11 | 340313043 | 30.6 ppb |
| 2014-03-11 | 340313041 | ND |
| 2014-03-11 | 340313039 | 29.1 ppb |
| 2014-03-11 | 340313037 | 47.3 ppb |
| 2014-03-11 | 340313035 | 37.5 ppb |
| 2014-03-11 | 340313033 | 27.9 ppb |
| 2014-03-11 | 340313031 | 27.7 ppb |
| 2014-06-10 | 340611050 | 31.5 ppb |
| 2014-06-10 | 340611054 | 28.1 ppb |
| 2014-06-10 | 340611052 | 29.1 ppb |
| 2014-06-10 | 340611056 | 20.2 ppb |
| 2014-06-10 | 340611058 | 29.5 ppb |
| 2014-06-10 | 340611048 | ND |
| 2014-06-10 | 340611046 | 7.40 ppb |
| 2014-06-10 | 340611044 | 18.7 ppb |
| 2014-06-10 | 340611042 | 21.2 ppb |
| 2014-06-10 | 340611040 | 26.9 ppb |
| 2014-06-10 | 340611038 | 25.9 ppb |
| 2014-06-10 | 340611036 | 28.3 ppb |
| 2014-09-10 | 340910065 | 20.9 ppb |
| 2014-09-10 | 340910069 | 17.0 ppb |
| 2014-09-10 | 340910067 | 19.6 ppb |
| 2014-09-10 | 340910082 | 8.10 ppb |
| 2014-09-10 | 340910084 | 6.80 ppb |
| 2014-09-10 | 340910063 | 10.8 ppb |
| 2014-09-10 | 340910061 | 7.90 ppb |
| 2014-09-10 | 340910079 | 8.50 ppb |
| 2014-09-10 | 340910077 | 19.1 ppb |
| 2014-09-10 | 340910075 | 13.6 ppb |
| 2014-09-10 | 340910073 | 16.2 ppb |
| 2014-09-10 | 340910071 | 23.2 ppb |
| 2014-12-10 | 341210051 | 32.3 ppb |
| 2014-12-10 | 341210055 | 30.1 ppb |
| 2014-12-10 | 341210053 | 28.7 ppb |
| 2014-12-10 | 341210057 | 30.1 ppb |
| 2014-12-10 | 341210059 | 28.0 ppb |
| 2014-12-10 | 341210049 | 28.2 ppb |
| 2014-12-10 | 341210047 | 29.4 ppb |
| 2014-12-10 | 341210045 | 27.1 ppb |
| 2014-12-10 | 341210043 | 22.0 ppb |
| 2014-12-10 | 341210041 | 30.6 ppb |
| 2014-12-10 | 341210039 | 28.7 ppb |
| 2014-12-10 | 341210037 | 29.8 ppb |
| 2015-03-11 | 350311065 | 12.4 ppb |
| 2015-03-11 | 350311069 | 9.50 ppb |
| 2015-03-11 | 350311067 | 13.2 ppb |
| 2015-03-11 | 350311072 | 8.00 ppb |
| 2015-03-11 | 350311074 | 14.5 ppb |
| 2015-03-11 | 350311063 | 16.0 ppb |
| 2015-03-11 | 350311061 | 17.7 ppb |
| 2015-03-11 | 350311059 | 15.0 ppb |
| 2015-03-11 | 350311057 | 15.1 ppb |
| 2015-03-11 | 350311055 | 15.1 ppb |
| 2015-03-11 | 350311053 | 17.0 ppb |
| 2015-03-11 | 350311051 | 15.1 ppb |
| 2015-06-10 | 350610062 | 31.5 ppb |
| 2015-06-10 | 350610066 | 29.1 ppb |
| 2015-06-10 | 350610064 | 30.7 ppb |
| 2015-06-10 | 350610068 | 25.2 ppb |
| 2015-06-10 | 350610070A | 24.2 ppb |
| 2015-06-10 | 350610060 | 27.0 ppb |
| 2015-06-10 | 350610058 | 24.6 ppb |
| 2015-06-10 | 350610056 | 22.4 ppb |
| 2015-06-10 | 350610054 | 20.4 ppb |
| 2015-06-10 | 350610052 | 28.1 ppb |
| 2015-06-10 | 350610050 | 20.0 ppb |
| 2015-06-10 | 350610048 | 27.1 ppb |
| 2015-09-10 | 5090326-12 | 21.6 ppb |
| 2015-09-10 | 5090326-11 | 20.0 ppb |
| 2015-09-10 | 5090326-10 | 28.9 ppb |
| 2015-09-10 | 5090326-09 | 13.8 ppb |
| 2015-09-10 | 5090326-08 | 7.60 ppb |
| 2015-09-10 | 5090326-07 | 16.1 ppb |
| 2015-09-10 | 5090326-06 | 6.47 ppb |
| 2015-09-10 | 5090326-05 | 12.0 ppb |
| 2015-09-10 | 5090326-04 | 16.5 ppb |
| 2015-09-10 | 5090326-03 | 22.9 ppb |
| 2015-09-10 | 5090326-02 | 20.3 ppb |
| 2015-09-10 | 5090326-01 | 20.0 ppb |
| 2015-12-10 | L5960904-9 | 21.5 ppb |
| 2015-12-10 | L5960904-12 | 19.7 ppb |
| 2015-12-10 | L5960904-11 | 20.5 ppb |
| 2015-12-10 | L5960904-10 | 29.9 ppb |
| 2015-12-10 | L5960904-6 | 3.75 ppb |
| 2015-12-10 | L5960904-8 | 14.9 ppb |
| 2015-12-10 | L5960904-1 | 4.64 ppb |
| 2015-12-10 | L5960904-4 | 3.89 ppb |
| 2015-12-10 | L5960904-3 | 20.5 ppb |
| 2015-12-10 | L5960904-7 | 19.8 ppb |
| 2015-12-10 | L5960904-5 | 33.7 ppb |
| 2015-12-10 | L5960904-2 | 20.7 ppb |
| 2016-03-10 | 360310122 | 28.4 ppb |
| 2016-03-10 | 360310126 | 29.3 ppb |
| 2016-03-10 | 360310124 | 28.4 ppb |
| 2016-03-10 | 360310128 | 28.5 ppb |
| 2016-03-10 | 360310130 | 29.3 ppb |
| 2016-03-10 | 360310120 | 28.7 ppb |
| 2016-03-10 | 360310118 | 25.0 ppb |
| 2016-03-10 | 360310116 | 2.23 ppb |
| 2016-03-10 | 360310114 | 32.0 ppb |
| 2016-03-10 | 360310112 | 26.8 ppb |
| 2016-03-10 | 360310110 | 34.1 ppb |
| 2016-03-10 | 360310108 | 27.3 ppb |
| 2016-06-10 | 360610039 | 22.2 ppb |
| 2016-06-10 | 360610043 | 23.0 ppb |
| 2016-06-10 | 360610041 | 31.4 ppb |
| 2016-06-10 | 360610045 | 30.1 ppb |
| 2016-06-10 | 360610047 | 3.16 ppb |
| 2016-06-10 | 360610037 | 31.5 ppb |
| 2016-06-10 | 360610035 | 13.8 ppb |
| 2016-06-10 | 360610033 | 23.5 ppb |
| 2016-06-10 | 360610031 | 24.2 ppb |
| 2016-06-10 | 360610029 | 7.40 ppb |
| 2016-06-10 | 360610027 | 21.5 ppb |
| 2016-06-10 | 360610025 | 26.5 ppb |
| 2016-09-12 | 360912048 | 31.9 ppb |
| 2016-09-12 | 360912052 | 25.7 ppb |
| 2016-09-12 | 360912050 | 25.2 ppb |
| 2016-09-12 | 360912054 | 14.5 ppb |
| 2016-09-12 | 360912056 | 2.89 ppb |
| 2016-09-12 | 360912046 | 18.4 ppb |
| 2016-09-12 | 360912044 | 7.32 ppb |
| 2016-09-12 | 360912041 | 18.1 ppb |
| 2016-09-12 | 360912039 | 15.8 ppb |
| 2016-09-12 | 360912037 | 29.4 ppb |
| 2016-09-12 | 360912035 | 25.6 ppb |
| 2016-09-12 | 360912033 | 31.1 ppb |
| 2016-12-09 | 361209080 | 25.0 ppb |
| 2016-12-09 | 361209084 | 22.9 ppb |
| 2016-12-09 | 361209082 | 27.8 ppb |
| 2016-12-09 | 361209086 | 19.1 ppb |
| 2016-12-09 | 361209088 | 27.5 ppb |
| 2016-12-09 | 361209078 | 30.9 ppb |
| 2016-12-09 | 361209076 | 20.4 ppb |
| 2016-12-09 | 361209074 | 30.3 ppb |
| 2016-12-09 | 361209072 | 20.3 ppb |
| 2016-12-09 | 361209070 | 28.0 ppb |
| 2016-12-09 | 361209068 | 37.3 ppb |
| 2016-12-09 | 361209066 | 25.0 ppb |
| 2017-03-10 | 370310041 | 31.7 ppb |
| 2017-03-10 | 370310045 | 29.1 ppb |
| 2017-03-10 | 370310043 | 26.9 ppb |
| 2017-03-10 | 370310047 | 37.0 ppb |
| 2017-03-10 | 370310049 | 36.2 ppb |
| 2017-03-10 | 370310039 | 35.1 ppb |
| 2017-03-10 | 370310037 | 12.4 ppb |
| 2017-03-10 | 370310035 | 23.9 ppb |
| 2017-03-10 | 370310033 | 25.1 ppb |
| 2017-03-10 | 370310031 | 31.0 ppb |
| 2017-03-10 | 370310029 | 26.8 ppb |
| 2017-03-10 | 370310027 | 30.6 ppb |
| 2017-06-09 | 370609062 | 23.8 ppb |
| 2017-06-09 | 370609066 | 29.7 ppb |
| 2017-06-09 | 370609064 | 28.4 ppb |
| 2017-06-09 | 370609068 | 38.2 ppb |
| 2017-06-09 | 370609070 | 38.1 ppb |
| 2017-06-09 | 370609060 | 23.3 ppb |
| 2017-06-09 | 370609058 | ND |
| 2017-06-09 | 370609056 | 30.5 ppb |
| 2017-06-09 | 370609054 | 20.0 ppb |
| 2017-06-09 | 370609052 | 23.0 ppb |
| 2017-06-09 | 370609050 | 31.6 ppb |
| 2017-06-09 | 370609048 | 29.1 ppb |
| 2017-09-08 | 370908061 | 13.8 ppb |
| 2017-09-08 | 370908065 | 9.17 ppb |
| 2017-09-08 | 370908063 | 11.9 ppb |
| 2017-09-08 | 370908067 | 5.60 ppb |
| 2017-09-08 | 370908069 | 4.00 ppb |
| 2017-09-08 | 370908059 | 6.59 ppb |
| 2017-09-08 | 370908057 | ND |
| 2017-09-08 | 370908055 | ND |
| 2017-09-08 | 370908053 | 9.01 ppb |
| 2017-09-08 | 370908051 | 14.1 ppb |
| 2017-09-08 | 370908049 | 11.1 ppb |
| 2017-09-08 | 370908047 | 11.7 ppb |
| 2017-12-11 | 371211061 | 23.7 ppb |
| 2017-12-11 | 371211065 | 31.2 ppb |
| 2017-12-11 | 371211063 | 25.4 ppb |
| 2017-12-11 | 371211067 | 19.7 ppb |
| 2017-12-11 | 371211069 | 21.7 ppb |
| 2017-12-11 | 371211059 | 19.7 ppb |
| 2017-12-11 | 371211057 | ND |
| 2017-12-11 | 371211055 | 23.7 ppb |
| 2017-12-11 | 371211053 | 33.6 ppb |
| 2017-12-11 | 371211051 | 28.3 ppb |
| 2017-12-11 | 371211049 | 30.2 ppb |
| 2017-12-11 | 371211047 | 24.1 ppb |