Dichloroacetic acid
Charlotte Water
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.
276
Samples
0
Samples exceeding legal limit (MCL)
276
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2012 | 8.61 ppb | 36 | 36 | 5.00 ppb - 14.0 ppb |
| 2013 | 8.42 ppb | 48 | 48 | 4.00 ppb - 21.0 ppb |
| 2014 | 5.17 ppb | 48 | 48 | 2.00 ppb - 7.00 ppb |
| 2015 | 2.83 ppb | 48 | 48 | 1.90 ppb - 3.80 ppb |
| 2016 | 7.64 ppb | 48 | 48 | 4.80 ppb - 9.90 ppb |
| 2017 | 8.61 ppb | 48 | 48 | 3.80 ppb - 14.2 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 |
|---|---|---|
| 2012-05-02 | AE26023 | 5.00 ppb |
| 2012-05-02 | AE26024 | 6.00 ppb |
| 2012-05-02 | AE26026 | 5.00 ppb |
| 2012-05-02 | AE26029 | 5.00 ppb |
| 2012-05-02 | AE26002 | 8.00 ppb |
| 2012-05-02 | AE26003 | 7.00 ppb |
| 2012-05-02 | AE26004 | 7.00 ppb |
| 2012-05-02 | AE26039 | 6.00 ppb |
| 2012-05-02 | AE26001 | 7.00 ppb |
| 2012-05-02 | AE26028 | 7.00 ppb |
| 2012-05-02 | AE26027 | 6.00 ppb |
| 2012-05-02 | AE26025 | 9.00 ppb |
| 2012-08-01 | AE35566 | 14.0 ppb |
| 2012-08-01 | AE35567 | 13.0 ppb |
| 2012-08-01 | AE35584 | 12.0 ppb |
| 2012-08-01 | AE35564 | 13.0 ppb |
| 2012-08-01 | AE35565 | 13.0 ppb |
| 2012-08-01 | AE35585 | 13.0 ppb |
| 2012-08-01 | AE35586 | 13.0 ppb |
| 2012-08-01 | AE35587 | 12.0 ppb |
| 2012-08-01 | AE35588 | 12.0 ppb |
| 2012-08-01 | AE35589 | 13.0 ppb |
| 2012-08-01 | AE35590 | 12.0 ppb |
| 2012-08-01 | AE35591 | 12.0 ppb |
| 2012-11-07 | AE45662 | 5.00 ppb |
| 2012-11-07 | AE45643 | 8.00 ppb |
| 2012-11-07 | AE45642 | 6.00 ppb |
| 2012-11-07 | AE45638 | 6.00 ppb |
| 2012-11-07 | AE45639 | 7.00 ppb |
| 2012-11-07 | AE45660 | 6.00 ppb |
| 2012-11-07 | AE45640 | 8.00 ppb |
| 2012-11-07 | AE45637 | 6.00 ppb |
| 2012-11-07 | AE45680 | 7.00 ppb |
| 2012-11-07 | AE45644 | 7.00 ppb |
| 2012-11-07 | AE45661 | 8.00 ppb |
| 2012-11-07 | AE45659 | 6.00 ppb |
| 2013-02-06 | AE54289 | 4.00 ppb |
| 2013-02-06 | AE54288 | 4.00 ppb |
| 2013-02-06 | AE54271 | 4.00 ppb |
| 2013-02-06 | AE54272 | 4.00 ppb |
| 2013-02-06 | AE54273 | 4.00 ppb |
| 2013-02-06 | AE54270 | 4.00 ppb |
| 2013-02-06 | AE54291 | 4.00 ppb |
| 2013-02-06 | AE54290 | 4.00 ppb |
| 2013-02-06 | AE54310 | 4.00 ppb |
| 2013-02-06 | AE54308 | 4.00 ppb |
| 2013-02-06 | AE54309 | 4.00 ppb |
| 2013-02-06 | AE54311 | 4.00 ppb |
| 2013-05-01 | AE63027-TH | 7.00 ppb |
| 2013-05-01 | AE63070-TH | 8.00 ppb |
| 2013-05-01 | AE63025-TH | 7.00 ppb |
| 2013-05-01 | AE63024-TH | 7.00 ppb |
| 2013-05-01 | AE63022-TH | 7.00 ppb |
| 2013-05-01 | AE63020-TH | 7.00 ppb |
| 2013-05-01 | AE63021-TH | 6.00 ppb |
| 2013-05-01 | AE63023-TH | 7.00 ppb |
| 2013-05-01 | AE63028-TH | 7.00 ppb |
| 2013-05-01 | AE63071-TH | 7.00 ppb |
| 2013-05-01 | AE63072-TH | 8.00 ppb |
| 2013-05-01 | AE63073-TH | 8.00 ppb |
| 2013-08-07 | 92168308001 | 21.0 ppb |
| 2013-08-07 | 92168308002 | 16.0 ppb |
| 2013-08-07 | 92168308003 | 16.0 ppb |
| 2013-08-07 | 92168308004 | 16.0 ppb |
| 2013-08-07 | 92168308005 | 15.0 ppb |
| 2013-08-07 | 92168308006 | 17.0 ppb |
| 2013-08-07 | 92168308007 | 14.0 ppb |
| 2013-08-07 | 92168308008 | 13.0 ppb |
| 2013-08-07 | 92168308009 | 9.20 ppb |
| 2013-08-07 | 92168308010 | 13.0 ppb |
| 2013-08-07 | 92168308011 | 13.0 ppb |
| 2013-08-07 | 92168308012 | 15.0 ppb |
| 2013-11-06 | AE82023TH | 8.00 ppb |
| 2013-11-06 | AE82012TH | 7.00 ppb |
| 2013-11-06 | AE81995TH | 9.00 ppb |
| 2013-11-06 | AE81996TH | 10.00 ppb |
| 2013-11-06 | AE81997TH | 8.00 ppb |
| 2013-11-06 | AE81994TH | 8.00 ppb |
| 2013-11-06 | AE82015TH | 9.00 ppb |
| 2013-11-06 | AE82014TH | 7.00 ppb |
| 2013-11-06 | AE82019TH | 8.00 ppb |
| 2013-11-06 | AE82017TH | 7.00 ppb |
| 2013-11-06 | AE82018TH | 7.00 ppb |
| 2013-11-06 | AE82020TH | 4.00 ppb |
| 2014-02-05 | AE90835-TH | 7.00 ppb |
| 2014-02-05 | AE90834-TH | 7.00 ppb |
| 2014-02-05 | AE90829-TH | 7.00 ppb |
| 2014-02-05 | AE90830-TH | 7.00 ppb |
| 2014-02-05 | AE90826-TH | 7.00 ppb |
| 2014-02-05 | AE90831-TH | 6.00 ppb |
| 2014-02-05 | AE90832-TH | 7.00 ppb |
| 2014-02-05 | AE90836-TH | 6.00 ppb |
| 2014-02-05 | AE90843-TH | 7.00 ppb |
| 2014-02-05 | AE90841-TH | 6.00 ppb |
| 2014-02-05 | AE90842-TH | 7.00 ppb |
| 2014-02-05 | AE90840-TH | 7.00 ppb |
| 2014-05-07 | AF00980-TH | 7.00 ppb |
| 2014-05-07 | AF00979-TH | 6.00 ppb |
| 2014-05-07 | AF00960-TH | 7.00 ppb |
| 2014-05-07 | AF00961-TH | 7.00 ppb |
| 2014-05-07 | AF00962-TH | 7.00 ppb |
| 2014-05-07 | AF00959-TH | 7.00 ppb |
| 2014-05-07 | AF00978-TH | 7.00 ppb |
| 2014-05-07 | AF00981-TH | 7.00 ppb |
| 2014-05-07 | AF00976-TH | 7.00 ppb |
| 2014-05-07 | AF00977-TH | 6.00 ppb |
| 2014-05-07 | AF00975-TH | 6.00 ppb |
| 2014-05-07 | AF00973-TH | 6.00 ppb |
| 2014-08-13 | AF10793-TH | 5.00 ppb |
| 2014-08-13 | AF10792-TH | 4.00 ppb |
| 2014-08-13 | AF10781-TH | 4.00 ppb |
| 2014-08-13 | AF10782-TH | 6.00 ppb |
| 2014-08-13 | A10783-TH | 5.00 ppb |
| 2014-08-13 | AF10780-TH | 3.00 ppb |
| 2014-08-13 | AF10794-TH | 4.00 ppb |
| 2014-08-13 | AF10791-TH | 4.00 ppb |
| 2014-08-13 | AF10789-TH | 4.00 ppb |
| 2014-08-13 | AF10787-TH | 4.00 ppb |
| 2014-08-13 | AF10788-TH | 4.00 ppb |
| 2014-08-13 | AF10790-TH | 3.00 ppb |
| 2014-11-05 | AF19441-TH | 3.00 ppb |
| 2014-11-05 | AF19443-TH | 3.00 ppb |
| 2014-11-05 | AF19448-TH | 3.00 ppb |
| 2014-11-05 | AF19449-TH | 4.00 ppb |
| 2014-11-05 | AF19450-TH | 3.00 ppb |
| 2014-11-05 | AF19447-TH | 3.00 ppb |
| 2014-11-05 | AF19444-TH | 3.00 ppb |
| 2014-11-05 | AF19442-TH | 3.00 ppb |
| 2014-11-05 | AF19454-TH | 3.00 ppb |
| 2014-11-05 | AF19451-TH | 4.00 ppb |
| 2014-11-05 | AF19453-TH | 3.00 ppb |
| 2014-11-05 | AF19455-TH | 2.00 ppb |
| 2015-03-04 | 2.40 ppb | |
| 2015-03-04 | 2.10 ppb | |
| 2015-03-04 | 3.00 ppb | |
| 2015-03-04 | 2.70 ppb | |
| 2015-03-04 | 2.40 ppb | |
| 2015-03-04 | 2.20 ppb | |
| 2015-03-04 | 2.70 ppb | |
| 2015-03-04 | 2.00 ppb | |
| 2015-03-04 | 1.90 ppb | |
| 2015-03-04 | 2.00 ppb | |
| 2015-03-04 | 2.40 ppb | |
| 2015-03-04 | 2.60 ppb | |
| 2015-05-06 | 3.20 ppb | |
| 2015-05-06 | 2.90 ppb | |
| 2015-05-06 | 3.60 ppb | |
| 2015-05-06 | 3.30 ppb | |
| 2015-05-06 | 2.90 ppb | |
| 2015-05-06 | 3.70 ppb | |
| 2015-05-06 | 2.80 ppb | |
| 2015-05-06 | 3.70 ppb | |
| 2015-05-06 | 3.80 ppb | |
| 2015-05-06 | 3.20 ppb | |
| 2015-05-06 | 3.20 ppb | |
| 2015-05-06 | 3.30 ppb | |
| 2015-08-06 | 2.90 ppb | |
| 2015-08-06 | 3.10 ppb | |
| 2015-08-06 | 3.00 ppb | |
| 2015-08-06 | 3.30 ppb | |
| 2015-08-06 | 3.10 ppb | |
| 2015-08-06 | 3.70 ppb | |
| 2015-08-06 | 3.50 ppb | |
| 2015-08-06 | 3.40 ppb | |
| 2015-08-06 | 3.50 ppb | |
| 2015-08-06 | 3.40 ppb | |
| 2015-08-06 | 3.10 ppb | |
| 2015-08-06 | 3.00 ppb | |
| 2015-11-04 | 2.70 ppb | |
| 2015-11-04 | 2.80 ppb | |
| 2015-11-04 | 2.50 ppb | |
| 2015-11-04 | 2.60 ppb | |
| 2015-11-04 | 2.40 ppb | |
| 2015-11-04 | 2.00 ppb | |
| 2015-11-04 | 2.20 ppb | |
| 2015-11-04 | 2.70 ppb | |
| 2015-11-04 | 2.20 ppb | |
| 2015-11-04 | 2.40 ppb | |
| 2015-11-04 | 2.20 ppb | |
| 2015-11-04 | 1.90 ppb | |
| 2016-02-03 | AF65959_TH | 9.20 ppb |
| 2016-02-03 | AF65947_TH | 9.00 ppb |
| 2016-02-03 | AF65956_TH | 8.90 ppb |
| 2016-02-03 | AF65957_TH | 8.80 ppb |
| 2016-02-03 | AF65954_TH | 9.40 ppb |
| 2016-02-03 | AF65950_TH | 7.70 ppb |
| 2016-02-03 | AF65953_TH | 9.50 ppb |
| 2016-02-03 | AF65955_TH | 9.10 ppb |
| 2016-02-03 | AF65948_TH | 6.90 ppb |
| 2016-02-03 | AF65949_TH | 9.20 ppb |
| 2016-02-03 | AF65952_TH | 8.60 ppb |
| 2016-02-03 | AF65960_TH | 9.60 ppb |
| 2016-05-04 | AF76687_TH | 8.90 ppb |
| 2016-05-04 | AF76688_TH | 7.10 ppb |
| 2016-05-04 | AF76694_TH | 7.70 ppb |
| 2016-05-04 | AF76695_TH | 6.80 ppb |
| 2016-05-04 | AF76696_TH | 9.60 ppb |
| 2016-05-04 | AF76697_TH | 7.90 ppb |
| 2016-05-04 | AF76698_TH | 8.80 ppb |
| 2016-05-04 | AF76686_TH | 6.60 ppb |
| 2016-05-04 | AF76689_TH | 8.30 ppb |
| 2016-05-04 | AF76691_TH | 8.30 ppb |
| 2016-05-04 | AF76692_TH | 7.20 ppb |
| 2016-05-04 | AF76693_TH | 7.70 ppb |
| 2016-08-03 | AF87851_DBP | 6.80 ppb |
| 2016-08-03 | AF87856_DBP | 9.80 ppb |
| 2016-08-03 | AF87857_DBP | 8.40 ppb |
| 2016-08-03 | AF87853_DBP | 7.70 ppb |
| 2016-08-03 | AF87854_DBP | 9.90 ppb |
| 2016-08-03 | AF87855_DBP | 8.30 ppb |
| 2016-08-03 | AF87859_DBP | 7.80 ppb |
| 2016-08-03 | AF87860_DBP | 8.20 ppb |
| 2016-08-03 | AF87864_DBP | 9.20 ppb |
| 2016-08-03 | AF87852_DBP | 8.40 ppb |
| 2016-08-03 | AF87858_DBP | 8.00 ppb |
| 2016-08-03 | AF87863_DBP | 8.80 ppb |
| 2016-11-02 | AF98951_TH | 5.30 ppb |
| 2016-11-02 | AF98918_TH | 5.80 ppb |
| 2016-11-02 | AF98948_TH | 5.40 ppb |
| 2016-11-02 | AF98954_TH | 5.50 ppb |
| 2016-11-02 | AF98917_TH | 6.20 ppb |
| 2016-11-02 | AF98919_TH | 5.00 ppb |
| 2016-11-02 | AF98956_TH | 4.90 ppb |
| 2016-11-02 | AF98916_TH | 5.70 ppb |
| 2016-11-02 | AF98947_TH | 5.10 ppb |
| 2016-11-02 | AF98950_TH | 5.60 ppb |
| 2016-11-02 | AF98953_TH | 4.80 ppb |
| 2016-11-02 | AF98955_TH | 5.50 ppb |
| 2017-02-01 | AG08731_TH | 8.20 ppb |
| 2017-02-01 | AG08755_TH | 8.70 ppb |
| 2017-02-01 | AG08725_TH | 8.10 ppb |
| 2017-02-01 | AG08727_TH | 7.90 ppb |
| 2017-02-01 | AG08730_TH | 9.20 ppb |
| 2017-02-01 | AG08754_TH | 8.90 ppb |
| 2017-02-01 | AG08726_TH | 8.20 ppb |
| 2017-02-01 | AG08735_TH | 10.8 ppb |
| 2017-02-01 | AG08756_TH | 9.50 ppb |
| 2017-02-01 | AG08728_TH | 4.40 ppb |
| 2017-02-01 | AG08734_TH | 8.80 ppb |
| 2017-02-01 | AG08752_TH | 3.90 ppb |
| 2017-05-03 | AG19630_TH | 6.30 ppb |
| 2017-05-03 | AG19634_TH | 8.00 ppb |
| 2017-05-03 | AG19624_TH | 6.00 ppb |
| 2017-05-03 | AG19622_TH | 6.70 ppb |
| 2017-05-03 | AG19635_TH | 6.10 ppb |
| 2017-05-03 | AG19625_TH | 5.30 ppb |
| 2017-05-03 | AG19631_TH | 6.10 ppb |
| 2017-05-03 | AG19636_TH | 3.80 ppb |
| 2017-05-03 | AG19623_TH | 6.60 ppb |
| 2017-05-03 | AG19637_TH | 6.40 ppb |
| 2017-05-03 | AG19638TH | 5.40 ppb |
| 2017-05-03 | AG19639_TH | 6.90 ppb |
| 2017-08-02 | AG30505_TH | 13.2 ppb |
| 2017-08-02 | AG30504_TH | 11.6 ppb |
| 2017-08-02 | AG30507_TH | 13.1 ppb |
| 2017-08-02 | AG30510_TH | 10.5 ppb |
| 2017-08-02 | AG30508_TH | 14.2 ppb |
| 2017-08-02 | AG30509_TH | 12.7 ppb |
| 2017-08-02 | AG30511_TH | 11.8 ppb |
| 2017-08-02 | AG30506_TH | 13.8 ppb |
| 2017-08-02 | AG30530_TH | 12.3 ppb |
| 2017-08-02 | AG30526_TH | 13.4 ppb |
| 2017-08-02 | AG30527_TH | 12.2 ppb |
| 2017-08-02 | AG30532_TH | 10.9 ppb |
| 2017-11-01 | AG41985_TH | 7.60 ppb |
| 2017-11-01 | AG41991_TH | 7.80 ppb |
| 2017-11-01 | AG41965_TH | 7.90 ppb |
| 2017-11-01 | AG41963_TH | 9.10 ppb |
| 2017-11-01 | AG41984_TH | 7.40 ppb |
| 2017-11-01 | AG41993_TH | 8.10 ppb |
| 2017-11-01 | AG41964_TH | 8.80 ppb |
| 2017-11-01 | AG41967_TH | 7.70 ppb |
| 2017-11-01 | AG41989_TH | 6.00 ppb |
| 2017-11-01 | AG41962_TH | 7.90 ppb |
| 2017-11-01 | AG41995_TH | 8.00 ppb |
| 2017-11-01 | AG41966_TH | 7.30 ppb |