Trichloroacetic acid
City of Rock Hill
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 4.23 ppb | 56 | 54 | ND - 11.5 ppb |
2015 | 1.66 ppb | 56 | 41 | ND - 7.10 ppb |
2016 | 4.97 ppb | 64 | 64 | 1.70 ppb - 12.6 ppb |
2017 | 5.08 ppb | 64 | 64 | 2.30 ppb - 10.9 ppb |
2018 | 5.92 ppb | 64 | 64 | 1.50 ppb - 72.0 ppb |
2019 | 5.53 ppb | 64 | 64 | 3.60 ppb - 8.40 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 |
---|---|---|
2014-02-06 | 4020001-01 | 5.70 ppb |
2014-02-06 | 4020001-02 | 6.70 ppb |
2014-02-06 | 4020001-03 | 5.80 ppb |
2014-02-06 | 4020001-04 | 5.70 ppb |
2014-02-06 | 4020001-05 | 5.40 ppb |
2014-02-06 | 4020001-06 | 5.90 ppb |
2014-02-06 | 4020001-07 | 4.90 ppb |
2014-02-06 | 4020001-08 | 5.70 ppb |
2014-04-08 | 4040552-01 | 6.70 ppb |
2014-04-08 | 4040552-02 | 6.80 ppb |
2014-04-08 | 4040552-03 | 5.10 ppb |
2014-04-08 | 4040552-04REI | 4.30 ppb |
2014-04-08 | 4040552-05 | 5.80 ppb |
2014-04-08 | 4040552-06 | 8.00 ppb |
2014-04-08 | 4040552-07 | 4.20 ppb |
2014-04-08 | 4040552-08 | 4.30 ppb |
2014-05-01 | 4040651-01 | 11.1 ppb |
2014-05-01 | 4040651-02 | 11.3 ppb |
2014-05-01 | 4040651-03 | 10.00 ppb |
2014-05-01 | 4040651-04 | 11.2 ppb |
2014-05-01 | 4040651-05 | 9.60 ppb |
2014-05-01 | 4040651-06 | 11.5 ppb |
2014-05-01 | 4040651-07 | 8.70 ppb |
2014-05-01 | 4040651-08 | 10.4 ppb |
2014-07-08 | 4070597-01 | 2.30 ppb |
2014-07-08 | 4070597-02 | 2.40 ppb |
2014-07-08 | 4070597-03 | 2.40 ppb |
2014-07-08 | 4070597-04 | 2.20 ppb |
2014-07-08 | 4070597-05 | 2.40 ppb |
2014-07-08 | 4070597-06 | 2.70 ppb |
2014-07-08 | 4070597-07 | 2.20 ppb |
2014-07-08 | 4070597-08 | 2.20 ppb |
2014-07-29 | 4070503-01 | 2.20 ppb |
2014-07-29 | 4070503-02 | 1.60 ppb |
2014-07-29 | 4070503-03 | 1.90 ppb |
2014-07-29 | 4070503-04 | 1.80 ppb |
2014-07-29 | 4070503-05 | 2.60 ppb |
2014-07-29 | 4070503-06 | 2.20 ppb |
2014-07-29 | 4070503-07 | 1.80 ppb |
2014-07-29 | 4070503-08 | 2.20 ppb |
2014-10-07 | 4100458-01 | 2.70 ppb |
2014-10-07 | 4100458-02 | 2.70 ppb |
2014-10-07 | 4100458-03 | 2.60 ppb |
2014-10-07 | 4100458-04 | 2.40 ppb |
2014-10-07 | 4100458-05 | 2.00 ppb |
2014-10-07 | 4100458-06 | 2.40 ppb |
2014-10-07 | 4100458-07 | 2.20 ppb |
2014-10-07 | 4100458-08 | 2.60 ppb |
2014-11-06 | 4110001-01 | 1.30 ppb |
2014-11-06 | 4110001-02 | 1.10 ppb |
2014-11-06 | 4110001-03 | 1.10 ppb |
2014-11-06 | 4110001-04 | 1.10 ppb |
2014-11-06 | 4110001-05 | 1.50 ppb |
2014-11-06 | 4110001-06 | 1.20 ppb |
2014-11-06 | 4110001-07 | ND |
2014-11-06 | 4110001-08 | ND |
2015-01-06 | 5010385-02 | 2.50 ppb |
2015-01-06 | 5010385-03 | 1.60 ppb |
2015-01-06 | 5010385-04 | 1.50 ppb |
2015-01-06 | 5010385-05 | 1.40 ppb |
2015-01-06 | 5010385-06 | 1.30 ppb |
2015-01-06 | 5010385-07 | 1.30 ppb |
2015-01-06 | 5010385-08 | 1.30 ppb |
2015-01-06 | 5010385-09 | 1.10 ppb |
2015-02-05 | 5020002-01 | ND |
2015-02-05 | 5020002-02 | ND |
2015-02-05 | 5020002-03 | ND |
2015-02-05 | 5020002-04 | ND |
2015-02-05 | 5020002-05 | 1.30 ppb |
2015-02-05 | 5020002-06 | ND |
2015-02-05 | 5020002-07 | 1.10 ppb |
2015-02-05 | 5020002-08 | 1.20 ppb |
2015-04-08 | 5040491-01 | ND |
2015-04-08 | 5040491-02 | ND |
2015-04-08 | 5040491-03 | ND |
2015-04-08 | 5040491-04 | ND |
2015-04-08 | 5040491-05 | ND |
2015-04-08 | 5040491-06 | ND |
2015-04-08 | 5040491-07 | ND |
2015-04-08 | 5040491-08 | ND |
2015-04-30 | 5040088-01 | 6.90 ppb |
2015-04-30 | 5040088-02 | 7.10 ppb |
2015-04-30 | 5040088-03 | 6.00 ppb |
2015-04-30 | 5040088-04 | 6.00 ppb |
2015-04-30 | 5040088-05 | 6.60 ppb |
2015-04-30 | 5040088-06 | 6.50 ppb |
2015-04-30 | 5040088-07 | 4.90 ppb |
2015-04-30 | 5040088-08 | 5.60 ppb |
2015-07-07 | 5070463-01 | 1.30 ppb |
2015-07-07 | 5070463-02 | 1.000 ppb |
2015-07-07 | 5070463-03 | 1.10 ppb |
2015-07-07 | 5070463-04 | 1.10 ppb |
2015-07-07 | 5070463-05 | ND |
2015-07-07 | 5070463-06 | 1.000 ppb |
2015-07-07 | 5070463-07 | ND |
2015-07-07 | 5070463-08 | 1.000 ppb |
2015-08-05 | 5080001-01 | 1.10 ppb |
2015-08-05 | 5080001-02 | 1.000 ppb |
2015-08-05 | 5080001-03 | 1.10 ppb |
2015-08-05 | 5080001-04 | 1.20 ppb |
2015-08-05 | 5080001-05 | 1.20 ppb |
2015-08-05 | 5080001-06 | 1.20 ppb |
2015-08-05 | 5080001-07 | 1.10 ppb |
2015-08-05 | 5080001-08 | 1.10 ppb |
2015-11-05 | 5110009-01 | 1.60 ppb |
2015-11-05 | 5110009-02 | 1.50 ppb |
2015-11-05 | 5110009-03 | 1.50 ppb |
2015-11-05 | 5110009-04 | 1.50 ppb |
2015-11-05 | 5110009-05 | 1.50 ppb |
2015-11-05 | 5110009-06 | 1.50 ppb |
2015-11-05 | 5110009-07 | 1.40 ppb |
2015-11-05 | 5110009-08 | 1.60 ppb |
2016-01-06 | 6010439-02 | 10.6 ppb |
2016-01-06 | 6010439-03 | 10.2 ppb |
2016-01-06 | 6010439-08 | 12.6 ppb |
2016-01-06 | 6010439-069 | 9.70 ppb |
2016-01-06 | 6010439-01 | 10.5 ppb |
2016-01-06 | 6010439-04 | 10.2 ppb |
2016-01-06 | 6010439-05 | 8.60 ppb |
2016-01-06 | 6010439-07 | 9.70 ppb |
2016-02-04 | 6020009-03 | 3.60 ppb |
2016-02-04 | 6020009-01 | 4.30 ppb |
2016-02-04 | 6020009-02 | 3.30 ppb |
2016-02-04 | 6020009-04 | 2.80 ppb |
2016-02-04 | 6020009-05 | 3.20 ppb |
2016-02-04 | 6020009-06 | 2.80 ppb |
2016-02-04 | 6020009-08 | 2.70 ppb |
2016-02-04 | 6020009-07 | 1.70 ppb |
2016-04-05 | 6040427-02 | 2.90 ppb |
2016-04-05 | 6040427-03 | 3.60 ppb |
2016-04-05 | 6040427-08 | 2.70 ppb |
2016-04-05 | 6040427-06 | 2.80 ppb |
2016-04-05 | 6040427-10 | 3.20 ppb |
2016-04-05 | 6040427-04 | 3.30 ppb |
2016-04-05 | 6040427-05 | 2.70 ppb |
2016-04-05 | 6040427-07 | 2.40 ppb |
2016-05-05 | 6050009-03 | 3.80 ppb |
2016-05-05 | 6050009-01 | 4.00 ppb |
2016-05-05 | 6050009-02 | 3.60 ppb |
2016-05-05 | 6050009-04 | 3.50 ppb |
2016-05-05 | 6050009-05 | 3.70 ppb |
2016-05-05 | 6050009-06 | 4.20 ppb |
2016-05-05 | 6050009-08 | 3.40 ppb |
2016-05-05 | 6050009-07 | 3.10 ppb |
2016-07-06 | 6070436-02 | 4.80 ppb |
2016-07-06 | 6070436-03 | 5.00 ppb |
2016-07-06 | 6070436-08 | 4.30 ppb |
2016-07-06 | 6070436-06 | 4.20 ppb |
2016-07-06 | 6070436-01 | 3.80 ppb |
2016-07-06 | 6070436-04 | 4.10 ppb |
2016-07-06 | 6070436-05 | 3.80 ppb |
2016-07-06 | 6070436-07 | 3.60 ppb |
2016-08-16 | 6080010-03 | 7.10 ppb |
2016-08-16 | 6080010-01 | 7.30 ppb |
2016-08-16 | 6080010-02 | 6.20 ppb |
2016-08-16 | 6080010-04 | 6.70 ppb |
2016-08-16 | 6080010-05 | 7.70 ppb |
2016-08-16 | 6080010-06 | 6.50 ppb |
2016-08-16 | 6080010-08 | 5.30 ppb |
2016-08-16 | 6080010-07 | 4.90 ppb |
2016-10-04 | 6100352-02 | 4.50 ppb |
2016-10-04 | 6100352-03 | 4.60 ppb |
2016-10-04 | 6100352-08 | 4.10 ppb |
2016-10-04 | 6100352-06 | 4.50 ppb |
2016-10-04 | 6100352-01 | 4.40 ppb |
2016-10-04 | 6103052-04 | 4.70 ppb |
2016-10-04 | 6100352-05 | 4.00 ppb |
2016-10-04 | 6100352-07 | 3.40 ppb |
2016-11-01 | 6100091-03 | 5.00 ppb |
2016-11-01 | 6100091-01 | 5.40 ppb |
2016-11-01 | 6100091-02 | 4.80 ppb |
2016-11-01 | 6100091-04 | 5.20 ppb |
2016-11-01 | 6100091-05 | 4.40 ppb |
2016-11-01 | 6100091-06 | 5.00 ppb |
2016-11-01 | 6100091-08 | 4.80 ppb |
2016-11-01 | 6100091-07 | 4.70 ppb |
2017-01-03 | 7010295-03 | 5.60 ppb |
2017-01-03 | 7010295-04 | 6.20 ppb |
2017-01-03 | 7010295-09 | 4.80 ppb |
2017-01-03 | 7010295-07 | 3.60 ppb |
2017-01-03 | 7010295-02 | 5.70 ppb |
2017-01-03 | 7010295-05 | 5.30 ppb |
2017-01-03 | 7010295-06 | 3.00 ppb |
2017-01-03 | 7010295-08 | 3.30 ppb |
2017-01-31 | 7010091-03 | 4.10 ppb |
2017-01-31 | 7010091-01 | 4.30 ppb |
2017-01-31 | 7010091-02 | 3.90 ppb |
2017-01-31 | 7010091-04 | 3.30 ppb |
2017-01-31 | 7010091-05 | 5.40 ppb |
2017-01-31 | 7010091-06 | 4.20 ppb |
2017-01-31 | 7010091-08 | 3.00 ppb |
2017-01-31 | 7010091-07 | 3.40 ppb |
2017-04-04 | 7040403-03 | 5.30 ppb |
2017-04-04 | 7040403-04 | 5.50 ppb |
2017-04-04 | 7040403-09 | 4.30 ppb |
2017-04-04 | 7040403-07 | 4.30 ppb |
2017-04-04 | 7040403-02 | 5.50 ppb |
2017-04-04 | 7040403-05 | 5.70 ppb |
2017-04-04 | 7040403-06 | 4.00 ppb |
2017-04-04 | 7040403-08 | 3.80 ppb |
2017-05-02 | 7050009-03 | 10.7 ppb |
2017-05-02 | 7050009-01 | 9.60 ppb |
2017-05-02 | 7050009-02 | 10.1 ppb |
2017-05-02 | 7050009-04 | 10.9 ppb |
2017-05-02 | 7050009-05 | 9.60 ppb |
2017-05-02 | 7050009-06 | 9.30 ppb |
2017-05-02 | 7050009-08 | 10.1 ppb |
2017-05-02 | 7050009-07 | 10.4 ppb |
2017-07-05 | 7170369-03 | 6.90 ppb |
2017-07-05 | 7070369-04 | 5.60 ppb |
2017-07-05 | 7070369-08 | 5.60 ppb |
2017-07-05 | 7170369-06 | 5.90 ppb |
2017-07-05 | 7070369-02 | 6.40 ppb |
2017-07-05 | 7070369-09 | 5.80 ppb |
2017-07-05 | 7070369-05 | 4.70 ppb |
2017-07-05 | 7070369-07 | 3.70 ppb |
2017-08-01 | 7070126-03 | 5.40 ppb |
2017-08-01 | 7070126-01 | 6.20 ppb |
2017-08-01 | 7070126-02 | 4.60 ppb |
2017-08-01 | 7070126-04 | 4.90 ppb |
2017-08-01 | 7070126-05 | 5.10 ppb |
2017-08-01 | 7070126-06 | 4.60 ppb |
2017-08-01 | 7070126-08 | 4.50 ppb |
2017-08-01 | 7070126-07 | 4.30 ppb |
2017-10-03 | 7010048-03 | 4.00 ppb |
2017-10-03 | 7010048-04 | 4.20 ppb |
2017-10-03 | 7010048-09 | 3.30 ppb |
2017-10-03 | 7010048-07 | 3.50 ppb |
2017-10-03 | 7010408-02 | 4.80 ppb |
2017-10-03 | 7010048-05 | 3.80 ppb |
2017-10-03 | 7010048-06 | 3.00 ppb |
2017-10-03 | 7010048-08 | 2.60 ppb |
2017-10-31 | 7100091-03 | 3.10 ppb |
2017-10-31 | 7100091-01 | 3.80 ppb |
2017-10-31 | 7100091-02 | 3.10 ppb |
2017-10-31 | 7100091-04 | 2.50 ppb |
2017-10-31 | 7100091-05 | 3.10 ppb |
2017-10-31 | 7100091-06 | 3.10 ppb |
2017-10-31 | 7100091-08 | 2.30 ppb |
2017-10-31 | 7100091-07 | 2.40 ppb |
2018-01-02 | 8010275-04 | 3.90 ppb |
2018-01-02 | 8010275-09 | 2.50 ppb |
2018-01-02 | 8010275-03 | 2.90 ppb |
2018-01-02 | 8010275-07 | 2.30 ppb |
2018-01-02 | 8010275-02 | 2.20 ppb |
2018-01-02 | 8010275-05 | 3.00 ppb |
2018-01-02 | 8010275-08 | 1.60 ppb |
2018-01-02 | 8010275-06 | 2.40 ppb |
2018-01-29 | 8010091-01 | 2.70 ppb |
2018-01-29 | 8010091-02 | 1.90 ppb |
2018-01-29 | 8010091-03 | 2.10 ppb |
2018-01-29 | 8010091-04 | 1.60 ppb |
2018-01-29 | 8010091-05 | 2.00 ppb |
2018-01-29 | 8010091-06 | 2.00 ppb |
2018-01-29 | 8010091-07 | 1.60 ppb |
2018-01-29 | 8010091-08 | 1.50 ppb |
2018-04-23 | 8040418-04 | 4.40 ppb |
2018-04-23 | 8040418-09 | 3.90 ppb |
2018-04-23 | 8040418-03 | 4.20 ppb |
2018-04-23 | 8040418-07 | 3.80 ppb |
2018-04-23 | 8040418-02 | 4.70 ppb |
2018-04-23 | 8040418-05 | 4.30 ppb |
2018-04-23 | 8040418-08 | 3.60 ppb |
2018-04-23 | 8040418-06 | 2.80 ppb |
2018-05-01 | 8040091-01 | 6.40 ppb |
2018-05-01 | 8040091-02 | 5.80 ppb |
2018-05-01 | 8040091-03 | 6.60 ppb |
2018-05-01 | 8040091-04 | 8.50 ppb |
2018-05-01 | 8040091-05 | 6.70 ppb |
2018-05-01 | 8040091-06 | 6.50 ppb |
2018-05-01 | 8040091-07 | 8.40 ppb |
2018-05-01 | 8040091-08 | 9.50 ppb |
2018-07-03 | 8070490-04 | 9.00 ppb |
2018-07-03 | 8070490-09 | 8.40 ppb |
2018-07-03 | 8070490-03 | 8.00 ppb |
2018-07-03 | 8070490-07 | 8.50 ppb |
2018-07-03 | 8070490-02 | 8.60 ppb |
2018-07-03 | 8070490-05 | 8.80 ppb |
2018-07-03 | 8070490-08 | 6.40 ppb |
2018-07-03 | 8070490-06 | 72.0 ppb |
2018-07-31 | 8070123-01 | 6.60 ppb |
2018-07-31 | 8070123-02 | 6.00 ppb |
2018-07-31 | 8070123-03 | 6.20 ppb |
2018-07-31 | 8070123-04 | 5.70 ppb |
2018-07-31 | 8070123-05 | 5.90 ppb |
2018-07-31 | 8070123-06 | 3.80 ppb |
2018-07-31 | 8070123-07 | 4.10 ppb |
2018-08-02 | 8070123-09 | 5.70 ppb |
2018-10-02 | 8100475-02 | 4.60 ppb |
2018-10-02 | 8100475-03 | 5.20 ppb |
2018-10-02 | 8100475-04 | 5.90 ppb |
2018-10-02 | 8100475-05 | 4.40 ppb |
2018-10-02 | 8100475-06 | 4.70 ppb |
2018-10-02 | 8100475-07 | 4.90 ppb |
2018-10-02 | 8100475-08 | 4.60 ppb |
2018-10-02 | 8100475-09 | 4.30 ppb |
2018-10-30 | 8100143-01 | 5.70 ppb |
2018-10-30 | 8100143-02 | 4.80 ppb |
2018-10-30 | 8100143-03 | 5.50 ppb |
2018-10-30 | 8100143-04 | 5.10 ppb |
2018-10-30 | 8100143-05 | 4.40 ppb |
2018-10-30 | 8100143-06 | 5.10 ppb |
2018-10-30 | 8100143-07 | 4.90 ppb |
2018-10-30 | 8100143-08 | 4.90 ppb |
2019-01-02 | 9010352-02 | 5.60 ppb |
2019-01-02 | 9010352-03 | 6.50 ppb |
2019-01-02 | 9010352-04 | 7.10 ppb |
2019-01-02 | 9010352-05 | 5.90 ppb |
2019-01-02 | 9010352-07 | 3.90 ppb |
2019-01-02 | 9010352-08 | 4.70 ppb |
2019-01-02 | 9010352-09 | 5.90 ppb |
2019-01-08 | 9010667-01 | 4.80 ppb |
2019-02-05 | 9020010-01 | 6.30 ppb |
2019-02-05 | 9020010-02 | 5.70 ppb |
2019-02-05 | 9020010-03 | 6.20 ppb |
2019-02-05 | 9020010-04 | 5.50 ppb |
2019-02-05 | 9020010-05 | 5.40 ppb |
2019-02-05 | 9020010-06 | 5.90 ppb |
2019-02-05 | 9020010-07 | 6.00 ppb |
2019-02-05 | 9020010-08 | 5.60 ppb |
2019-04-02 | 9040490-02 | 4.90 ppb |
2019-04-02 | 9040490-03 | 5.70 ppb |
2019-04-02 | 9040490-04 | 5.80 ppb |
2019-04-02 | 9040490-05 | 5.10 ppb |
2019-04-02 | 9040490-06 | 3.80 ppb |
2019-04-02 | 9040490-07 | 4.20 ppb |
2019-04-02 | 9040490-08 | 3.60 ppb |
2019-04-02 | 9040490-09 | 4.80 ppb |
2019-04-30 | 9040164-01 | 6.20 ppb |
2019-04-30 | 9040164-02 | 5.60 ppb |
2019-04-30 | 9040164-03 | 5.90 ppb |
2019-04-30 | 9040164-04 | 5.30 ppb |
2019-04-30 | 9040164-05 | 5.50 ppb |
2019-04-30 | 9040164-06 | 5.90 ppb |
2019-04-30 | 9040164-07 | 4.40 ppb |
2019-04-30 | 9040164-08 | 3.80 ppb |
2019-07-09 | 9070745-03 | 5.50 ppb |
2019-07-09 | 9070745-04 | 5.80 ppb |
2019-07-09 | 9070745-05 | 5.40 ppb |
2019-07-09 | 9070745-06 | 4.30 ppb |
2019-07-09 | 9070745-07 | 5.00 ppb |
2019-07-09 | 9070745-08 | 3.60 ppb |
2019-07-09 | 9070745-09 | 5.30 ppb |
2019-07-09 | 9070745-02 | 5.00 ppb |
2019-07-30 | 9070120-01 | 7.20 ppb |
2019-07-30 | 9070120-02 | 5.90 ppb |
2019-07-30 | 9070120-03 | 6.30 ppb |
2019-07-30 | 9070120-04 | 5.70 ppb |
2019-07-30 | 9070120-05 | 6.40 ppb |
2019-07-30 | 9070120-06 | 6.10 ppb |
2019-07-30 | 9070120-07 | 4.20 ppb |
2019-07-30 | 9070120-08 | 4.00 ppb |
2019-10-01 | 9100409-02 | 6.40 ppb |
2019-10-01 | 9100409-03 | 6.40 ppb |
2019-10-01 | 9100409-04 | 6.90 ppb |
2019-10-01 | 9100409-05 | 6.80 ppb |
2019-10-01 | 9100409-06 | 5.60 ppb |
2019-10-01 | 9100409-07 | 7.40 ppb |
2019-10-01 | 9100409-08 | 7.00 ppb |
2019-10-01 | 9100409-09 | 8.40 ppb |
2019-10-29 | 9100165-01 | 5.80 ppb |
2019-10-29 | 9100165-02 | 4.60 ppb |
2019-10-29 | 9100165-03 | 5.60 ppb |
2019-10-29 | 9100165-04 | 5.30 ppb |
2019-10-29 | 9100165-05 | 5.40 ppb |
2019-10-29 | 9100165-06 | 5.00 ppb |
2019-10-29 | 9100165-07 | 4.90 ppb |
2019-10-29 | 9100165-08 | 5.50 ppb |