Trichloroacetic acid
Newark Water Department
Trichloroacetic 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)
278
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2012 | 10.5 ppb | 53 | 45 | ND - 22.9 ppb |
| 2013 | 5.31 ppb | 48 | 47 | ND - 13.2 ppb |
| 2014 | 21.2 ppb | 48 | 47 | ND - 37.7 ppb |
| 2015 | 20.7 ppb | 48 | 48 | 1.06 ppb - 39.4 ppb |
| 2016 | 20.5 ppb | 48 | 47 | ND - 36.3 ppb |
| 2017 | 20.0 ppb | 48 | 44 | ND - 39.9 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.1 ppb
The EWG Health Guideline of 0.1 ppb for trichloroacetic 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 | 22.9 ppb |
| 2012-03-08 | 12031878-002 | 21.6 ppb |
| 2012-03-08 | 12031878-004 | 22.0 ppb |
| 2012-03-08 | 12031878-003 | 22.4 ppb |
| 2012-03-08 | 12031878-005 | 21.6 ppb |
| 2012-04-11 | 0004528-08 | 18.2 ppb |
| 2012-04-11 | 0004528-10 | 14.0 ppb |
| 2012-04-11 | 0004528-09 | 18.5 ppb |
| 2012-04-11 | 0004528-11 | 18.5 ppb |
| 2012-04-11 | 0004528-12 | 9.10 ppb |
| 2012-04-11 | 0004528-07 | 22.9 ppb |
| 2012-04-11 | 0004528-06 | 13.0 ppb |
| 2012-04-11 | 0004528-05 | 16.5 ppb |
| 2012-04-11 | 0004528-04 | 15.7 ppb |
| 2012-04-11 | 0004528-03 | 13.3 ppb |
| 2012-04-11 | 0004528-02 | 11.5 ppb |
| 2012-04-11 | 0004528-01 | 19.5 ppb |
| 2012-07-11 | 0005938-08 | 22.0 ppb |
| 2012-07-11 | 0005938-10 | ND |
| 2012-07-11 | 0005938-09 | 9.50 ppb |
| 2012-07-11 | 0005938-11 | ND |
| 2012-07-11 | 0005938-12 | 4.10 ppb |
| 2012-07-11 | 0005938-06 | 20.6 ppb |
| 2012-07-11 | 0005938-05 | 16.1 ppb |
| 2012-07-11 | 0005938-07 | 13.4 ppb |
| 2012-07-11 | 0005938-04 | 9.60 ppb |
| 2012-07-11 | 0005938-03 | 17.3 ppb |
| 2012-07-11 | 0005938-02 | 22.7 ppb |
| 2012-07-11 | 0005938-01 | 15.7 ppb |
| 2012-09-20 | 0007187-08 | 14.0 ppb |
| 2012-09-20 | 0007187-10 | ND |
| 2012-09-20 | 0007187-09 | 14.0 ppb |
| 2012-09-20 | 0007185-01 | ND |
| 2012-09-20 | 0007185-02 | ND |
| 2012-09-20 | 0007187-06 | ND |
| 2012-09-20 | 0007187-05 | 17.0 ppb |
| 2012-09-20 | 0007187-07 | 14.0 ppb |
| 2012-09-20 | 0007187-04 | 3.00 ppb |
| 2012-09-20 | 0007187-03 | 4.00 ppb |
| 2012-09-20 | 0007187-02 | ND |
| 2012-09-20 | 0007187-01 | ND |
| 2012-12-13 | 0008467-08 | 4.00 ppb |
| 2012-12-13 | 0008467-10 | 3.00 ppb |
| 2012-12-13 | 0008467-09 | 4.00 ppb |
| 2012-12-13 | 0008467-11 | 4.00 ppb |
| 2012-12-13 | 0008467-12 | 3.00 ppb |
| 2012-12-13 | 0008467-06 | 3.00 ppb |
| 2012-12-13 | 0008467-05 | 2.00 ppb |
| 2012-12-13 | 0008467-07 | 2.00 ppb |
| 2012-12-13 | 0008467-04 | 3.00 ppb |
| 2012-12-13 | 0008467-03 | 3.00 ppb |
| 2012-12-13 | 0008467-02 | 3.00 ppb |
| 2012-12-13 | 0008467-01 | 3.00 ppb |
| 2013-03-12 | 0009729-08 | 2.00 ppb |
| 2013-03-12 | 0009729-10 | 2.00 ppb |
| 2013-03-12 | 0009729-09 | 2.00 ppb |
| 2013-03-12 | 0009729-11 | 2.00 ppb |
| 2013-03-12 | 0009729-12 | 3.00 ppb |
| 2013-03-12 | 0009729-06 | 2.00 ppb |
| 2013-03-12 | 0009729-05 | ND |
| 2013-03-12 | 0009729-07 | 2.00 ppb |
| 2013-03-12 | 0009729-04 | 2.00 ppb |
| 2013-03-12 | 0009729-03 | 2.00 ppb |
| 2013-03-12 | 0009729-02 | 3.00 ppb |
| 2013-03-12 | 0009729-01 | 2.00 ppb |
| 2013-06-11 | 0011365-08 | 2.00 ppb |
| 2013-06-11 | 0011365-10 | 3.00 ppb |
| 2013-06-11 | 0011365-09 | 2.00 ppb |
| 2013-06-11 | 0011365-11 | 2.00 ppb |
| 2013-06-11 | 0011365-12 | 4.00 ppb |
| 2013-06-11 | 0011365-06 | 2.00 ppb |
| 2013-06-11 | 0011365-05 | 1.000 ppb |
| 2013-06-11 | 0011365-07 | 2.00 ppb |
| 2013-06-11 | 0011365-04 | 2.00 ppb |
| 2013-06-11 | 0011365-03 | 2.00 ppb |
| 2013-06-11 | 0011365-02 | 2.00 ppb |
| 2013-06-11 | 0011365-01 | 2.00 ppb |
| 2013-09-11 | 0013035-08 | 7.00 ppb |
| 2013-09-11 | 0013035-10 | 9.00 ppb |
| 2013-09-11 | 0013035-09 | 9.00 ppb |
| 2013-09-11 | 0013035-11 | 10.00 ppb |
| 2013-09-11 | 0013035-12 | 8.00 ppb |
| 2013-09-11 | 0013035-06 | 5.00 ppb |
| 2013-09-11 | 0013035-05 | 3.00 ppb |
| 2013-09-11 | 0013035-07 | 5.00 ppb |
| 2013-09-11 | 0013035-04 | 5.00 ppb |
| 2013-09-11 | 0013035-03 | 6.00 ppb |
| 2013-09-11 | 0013035-02 | 6.00 ppb |
| 2013-09-11 | 0013035-01 | 4.00 ppb |
| 2013-12-11 | 0015007-08 | 11.7 ppb |
| 2013-12-11 | 0015007-10 | 12.4 ppb |
| 2013-12-11 | 0015007-09 | 10.7 ppb |
| 2013-12-11 | 0015007-11 | 11.2 ppb |
| 2013-12-11 | 0015007-12 | 10.5 ppb |
| 2013-12-11 | 0015007-06 | 12.7 ppb |
| 2013-12-11 | 0015007-05 | 1.10 ppb |
| 2013-12-11 | 0015007-07 | 13.2 ppb |
| 2013-12-11 | 0015007-04 | 10.9 ppb |
| 2013-12-11 | 0015007-03 | 10.7 ppb |
| 2013-12-11 | 0015007-02 | 11.3 ppb |
| 2013-12-11 | 0015007-01 | 11.4 ppb |
| 2014-03-11 | 340313045 | 20.2 ppb |
| 2014-03-11 | 340313049 | 22.4 ppb |
| 2014-03-11 | 340313047 | 20.3 ppb |
| 2014-03-11 | 340313051 | 21.4 ppb |
| 2014-03-11 | 340313053 | 19.3 ppb |
| 2014-03-11 | 340313043 | 27.4 ppb |
| 2014-03-11 | 340313041 | 1.80 ppb |
| 2014-03-11 | 340313039 | 23.5 ppb |
| 2014-03-11 | 340313037 | 31.5 ppb |
| 2014-03-11 | 340313035 | 25.1 ppb |
| 2014-03-11 | 340313033 | 21.9 ppb |
| 2014-03-11 | 340313031 | 22.4 ppb |
| 2014-06-10 | 340611050 | 37.7 ppb |
| 2014-06-10 | 340611054 | 22.1 ppb |
| 2014-06-10 | 340611052 | 29.7 ppb |
| 2014-06-10 | 340611056 | 33.0 ppb |
| 2014-06-10 | 340611058 | 27.3 ppb |
| 2014-06-10 | 340611048 | ND |
| 2014-06-10 | 340611046 | 16.7 ppb |
| 2014-06-10 | 340611044 | 22.8 ppb |
| 2014-06-10 | 340611042 | 24.8 ppb |
| 2014-06-10 | 340611040 | 27.5 ppb |
| 2014-06-10 | 340611038 | 31.5 ppb |
| 2014-06-10 | 340611036 | 33.5 ppb |
| 2014-09-10 | 340910065 | 18.3 ppb |
| 2014-09-10 | 340910069 | 16.3 ppb |
| 2014-09-10 | 340910067 | 17.4 ppb |
| 2014-09-10 | 340910082 | 17.3 ppb |
| 2014-09-10 | 340910084 | 16.6 ppb |
| 2014-09-10 | 340910063 | 17.7 ppb |
| 2014-09-10 | 340910061 | 19.4 ppb |
| 2014-09-10 | 340910079 | 16.1 ppb |
| 2014-09-10 | 340910077 | 19.2 ppb |
| 2014-09-10 | 340910075 | 18.1 ppb |
| 2014-09-10 | 340910073 | 17.4 ppb |
| 2014-09-10 | 340910071 | 18.1 ppb |
| 2014-12-10 | 341210051 | 23.3 ppb |
| 2014-12-10 | 341210055 | 22.3 ppb |
| 2014-12-10 | 341210053 | 20.9 ppb |
| 2014-12-10 | 341210057 | 19.7 ppb |
| 2014-12-10 | 341210059 | 20.5 ppb |
| 2014-12-10 | 341210049 | 16.9 ppb |
| 2014-12-10 | 341210047 | 16.7 ppb |
| 2014-12-10 | 341210045 | 19.4 ppb |
| 2014-12-10 | 341210043 | 18.0 ppb |
| 2014-12-10 | 341210041 | 22.7 ppb |
| 2014-12-10 | 341210039 | 21.8 ppb |
| 2014-12-10 | 341210037 | 20.9 ppb |
| 2015-03-11 | 350311065 | 14.8 ppb |
| 2015-03-11 | 350311069 | 9.20 ppb |
| 2015-03-11 | 350311067 | 12.0 ppb |
| 2015-03-11 | 350311072 | 9.50 ppb |
| 2015-03-11 | 350311074 | 14.9 ppb |
| 2015-03-11 | 350311063 | 15.0 ppb |
| 2015-03-11 | 350311061 | 18.3 ppb |
| 2015-03-11 | 350311059 | 16.3 ppb |
| 2015-03-11 | 350311057 | 16.2 ppb |
| 2015-03-11 | 350311055 | 15.4 ppb |
| 2015-03-11 | 350311053 | 17.1 ppb |
| 2015-03-11 | 350311051 | 13.8 ppb |
| 2015-06-10 | 350610062 | 30.0 ppb |
| 2015-06-10 | 350610066 | 29.9 ppb |
| 2015-06-10 | 350610064 | 25.0 ppb |
| 2015-06-10 | 350610068 | 25.7 ppb |
| 2015-06-10 | 350610070A | 21.0 ppb |
| 2015-06-10 | 350610060 | 22.5 ppb |
| 2015-06-10 | 350610058 | 19.3 ppb |
| 2015-06-10 | 350610056 | 23.2 ppb |
| 2015-06-10 | 350610054 | 27.6 ppb |
| 2015-06-10 | 350610052 | 24.2 ppb |
| 2015-06-10 | 350610050 | 22.5 ppb |
| 2015-06-10 | 350610048 | 25.4 ppb |
| 2015-09-10 | 5090326-12 | 13.4 ppb |
| 2015-09-10 | 5090326-11 | 14.2 ppb |
| 2015-09-10 | 5090326-10 | 16.5 ppb |
| 2015-09-10 | 5090326-09 | 18.7 ppb |
| 2015-09-10 | 5090326-08 | 18.3 ppb |
| 2015-09-10 | 5090326-07 | 15.4 ppb |
| 2015-09-10 | 5090326-06 | 9.36 ppb |
| 2015-09-10 | 5090326-05 | 17.6 ppb |
| 2015-09-10 | 5090326-04 | 15.8 ppb |
| 2015-09-10 | 5090326-03 | 13.4 ppb |
| 2015-09-10 | 5090326-02 | 15.5 ppb |
| 2015-09-10 | 5090326-01 | 10.8 ppb |
| 2015-12-10 | L5960904-9 | 34.1 ppb |
| 2015-12-10 | L5960904-12 | 33.4 ppb |
| 2015-12-10 | L5960904-11 | 33.6 ppb |
| 2015-12-10 | L5960904-10 | 39.4 ppb |
| 2015-12-10 | L5960904-6 | 6.53 ppb |
| 2015-12-10 | L5960904-8 | 32.7 ppb |
| 2015-12-10 | L5960904-1 | 19.8 ppb |
| 2015-12-10 | L5960904-4 | 1.06 ppb |
| 2015-12-10 | L5960904-3 | 37.9 ppb |
| 2015-12-10 | L5960904-7 | 33.1 ppb |
| 2015-12-10 | L5960904-5 | 37.3 ppb |
| 2015-12-10 | L5960904-2 | 34.6 ppb |
| 2016-03-10 | 360310122 | 23.5 ppb |
| 2016-03-10 | 360310126 | 22.0 ppb |
| 2016-03-10 | 360310124 | 23.0 ppb |
| 2016-03-10 | 360310128 | 23.8 ppb |
| 2016-03-10 | 360310130 | 23.6 ppb |
| 2016-03-10 | 360310120 | 19.5 ppb |
| 2016-03-10 | 360310118 | 16.8 ppb |
| 2016-03-10 | 360310116 | ND |
| 2016-03-10 | 360310114 | 25.2 ppb |
| 2016-03-10 | 360310112 | 19.2 ppb |
| 2016-03-10 | 360310110 | 31.9 ppb |
| 2016-03-10 | 360310108 | 18.6 ppb |
| 2016-06-10 | 360610039 | 17.8 ppb |
| 2016-06-10 | 360610043 | 18.7 ppb |
| 2016-06-10 | 360610041 | 25.9 ppb |
| 2016-06-10 | 360610045 | 23.8 ppb |
| 2016-06-10 | 360610047 | 2.32 ppb |
| 2016-06-10 | 360610037 | 26.4 ppb |
| 2016-06-10 | 360610035 | 21.9 ppb |
| 2016-06-10 | 360610033 | 20.1 ppb |
| 2016-06-10 | 360610031 | 21.8 ppb |
| 2016-06-10 | 360610029 | 8.21 ppb |
| 2016-06-10 | 360610027 | 18.2 ppb |
| 2016-06-10 | 360610025 | 20.4 ppb |
| 2016-09-12 | 360912048 | 22.6 ppb |
| 2016-09-12 | 360912052 | 19.8 ppb |
| 2016-09-12 | 360912050 | 18.9 ppb |
| 2016-09-12 | 360912054 | 15.2 ppb |
| 2016-09-12 | 360912056 | 2.02 ppb |
| 2016-09-12 | 360912046 | 23.2 ppb |
| 2016-09-12 | 360912044 | 7.81 ppb |
| 2016-09-12 | 360912041 | 18.9 ppb |
| 2016-09-12 | 360912039 | 15.4 ppb |
| 2016-09-12 | 360912037 | 20.8 ppb |
| 2016-09-12 | 360912035 | 23.6 ppb |
| 2016-09-12 | 360912033 | 20.9 ppb |
| 2016-12-09 | 361209080 | 25.1 ppb |
| 2016-12-09 | 361209084 | 20.9 ppb |
| 2016-12-09 | 361209082 | 26.6 ppb |
| 2016-12-09 | 361209086 | 18.8 ppb |
| 2016-12-09 | 361209088 | 27.0 ppb |
| 2016-12-09 | 361209078 | 29.2 ppb |
| 2016-12-09 | 361209076 | 27.4 ppb |
| 2016-12-09 | 361209074 | 29.5 ppb |
| 2016-12-09 | 361209072 | 17.2 ppb |
| 2016-12-09 | 361209070 | 25.0 ppb |
| 2016-12-09 | 361209068 | 36.3 ppb |
| 2016-12-09 | 361209066 | 21.1 ppb |
| 2017-03-10 | 370310041 | 32.2 ppb |
| 2017-03-10 | 370310045 | 32.2 ppb |
| 2017-03-10 | 370310043 | 26.5 ppb |
| 2017-03-10 | 370310047 | 39.9 ppb |
| 2017-03-10 | 370310049 | 39.4 ppb |
| 2017-03-10 | 370310039 | 31.0 ppb |
| 2017-03-10 | 370310037 | 19.8 ppb |
| 2017-03-10 | 370310035 | 25.1 ppb |
| 2017-03-10 | 370310033 | 26.2 ppb |
| 2017-03-10 | 370310031 | 31.8 ppb |
| 2017-03-10 | 370310029 | 27.3 ppb |
| 2017-03-10 | 370310027 | 30.0 ppb |
| 2017-06-09 | 370609062 | 19.5 ppb |
| 2017-06-09 | 370609066 | 26.2 ppb |
| 2017-06-09 | 370609064 | 23.7 ppb |
| 2017-06-09 | 370609068 | 32.3 ppb |
| 2017-06-09 | 370609070 | 33.7 ppb |
| 2017-06-09 | 370609060 | 18.3 ppb |
| 2017-06-09 | 370609058 | ND |
| 2017-06-09 | 370609056 | 31.0 ppb |
| 2017-06-09 | 370609054 | 15.6 ppb |
| 2017-06-09 | 370609052 | 17.7 ppb |
| 2017-06-09 | 370609050 | 25.0 ppb |
| 2017-06-09 | 370609048 | 23.5 ppb |
| 2017-09-08 | 370908061 | 13.1 ppb |
| 2017-09-08 | 370908065 | 10.2 ppb |
| 2017-09-08 | 370908063 | 11.0 ppb |
| 2017-09-08 | 370908067 | 7.51 ppb |
| 2017-09-08 | 370908069 | 5.51 ppb |
| 2017-09-08 | 370908059 | 8.67 ppb |
| 2017-09-08 | 370908057 | ND |
| 2017-09-08 | 370908055 | ND |
| 2017-09-08 | 370908053 | 10.2 ppb |
| 2017-09-08 | 370908051 | 11.8 ppb |
| 2017-09-08 | 370908049 | 13.6 ppb |
| 2017-09-08 | 370908047 | 11.0 ppb |
| 2017-12-11 | 371211061 | 18.1 ppb |
| 2017-12-11 | 371211065 | 24.3 ppb |
| 2017-12-11 | 371211063 | 20.4 ppb |
| 2017-12-11 | 371211067 | 19.7 ppb |
| 2017-12-11 | 371211069 | 16.3 ppb |
| 2017-12-11 | 371211059 | 15.0 ppb |
| 2017-12-11 | 371211057 | ND |
| 2017-12-11 | 371211055 | 23.1 ppb |
| 2017-12-11 | 371211053 | 26.8 ppb |
| 2017-12-11 | 371211051 | 19.6 ppb |
| 2017-12-11 | 371211049 | 24.8 ppb |
| 2017-12-11 | 371211047 | 22.4 ppb |