Trichloroacetic acid
Cortland
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 12 | 0 | ND |
| 2015 | 0.710 ppb | 2 | 2 | 0.540 ppb - 0.880 ppb |
| 2016 | ND | 2 | 0 | ND |
| 2017 | 0.747 ppb | 2 | 2 | 0.706 ppb - 0.788 ppb |
| 2018 | 0.825 ppb | 2 | 2 | 0.750 ppb - 0.900 ppb |
| 2019 | ND | 2 | 0 | ND |
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 |
|---|---|---|
| 2014-03-28 | DBP2D 14Q1 CORTL | ND |
| 2014-03-28 | DBP2B 14Q1 CORTL | ND |
| 2014-03-28 | DBP2A 14Q1 CORTL | ND |
| 2014-03-28 | DBP2C 14Q1 CORTL | ND |
| 2014-06-30 | LRAA1 14Q2 CORTL | ND |
| 2014-06-30 | LRAA2 14Q2 CORTL | ND |
| 2014-06-30 | LRAA4 14Q2 CORTL | ND |
| 2014-06-30 | LRAA3 14Q2 CORTL | ND |
| 2014-09-30 | LRAA2 14Q3 CORTL | ND |
| 2014-09-30 | LRAA3 14Q3 CORTL | ND |
| 2014-09-30 | LRAA1 14Q3 CORTL | ND |
| 2014-09-30 | LRAA4 14Q3 CORTL | ND |
| 2015-08-20 | LRAA1 15 CORTLAN | 0.540 ppb |
| 2015-08-20 | LRAA2 15 CORTLAN | 0.880 ppb |
| 2016-08-29 | LRAA2 16 CORTLAN | ND |
| 2016-08-29 | LRAA1 16 CORTLAN | ND |
| 2017-08-28 | LRAA1 17 CORTLAN | 0.706 ppb |
| 2017-08-28 | LRAA2 17 CORTLAN | 0.788 ppb |
| 2018-08-27 | LRAA2 18 CORTLAN | 0.900 ppb |
| 2018-08-27 | LRAA1 18 CORTLAN | 0.750 ppb |
| 2019-08-26 | LRAA2 19 CORTLAN | ND |
| 2019-08-26 | LRAA1 19 CORTLAN | ND |