Trichloroacetic acid
Central Wy Regional Water System Jpb
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 |
|---|---|---|---|---|
| 2018 | 1.41 ppb | 36 | 35 | ND - 2.60 ppb |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | 0.745 ppb | 36 | 32 | ND - 3.70 ppb |
| 2021 | 0.754 ppb | 36 | 30 | ND - 4.50 ppb |
| 2022 | 0.754 ppb | 36 | 23 | ND - 3.40 ppb |
| 2023 | 0.934 ppb | 36 | 19 | ND - 10.00 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.1 ppb
The EWG Health Guideline of 0.1 ppb for trichloroacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to reproduction and child development.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-09 | C18010249-009B | 1.20 ppb |
| 2018-01-09 | C18010249-001B | 1.30 ppb |
| 2018-01-09 | C18010249-011B | 1.10 ppb |
| 2018-01-09 | C18010249-010A | 1.20 ppb |
| 2018-01-09 | C18010249-002B | 2.50 ppb |
| 2018-01-09 | C18010249-008A | 2.00 ppb |
| 2018-01-09 | C18010249-005B | 1.10 ppb |
| 2018-01-09 | C18010249-004B | 1.10 ppb |
| 2018-01-09 | C18010249-003B | ND |
| 2018-04-03 | C18040084-009B | 1.000 ppb |
| 2018-04-03 | C18040084-010A | 0.940 ppb |
| 2018-04-03 | C18040084-011B | 0.980 ppb |
| 2018-04-03 | C18040084-001B | 0.630 ppb |
| 2018-04-03 | C18040084-008A | 1.10 ppb |
| 2018-04-03 | C18040084-003B | 0.960 ppb |
| 2018-04-03 | C18040084-004B | 1.80 ppb |
| 2018-04-03 | C18040084-005B | 1.20 ppb |
| 2018-04-03 | C18040084-002B | 1.20 ppb |
| 2018-07-03 | C18070084-002B | 1.40 ppb |
| 2018-07-03 | C18070084-001B | 2.00 ppb |
| 2018-07-03 | C18070084-011B | 0.780 ppb |
| 2018-07-03 | C18070084-010A | 0.820 ppb |
| 2018-07-03 | C18070084-009B | 0.840 ppb |
| 2018-07-03 | C18070084-008A | 1.10 ppb |
| 2018-07-03 | C18070084-005B | 1.20 ppb |
| 2018-07-03 | C18070084-003B | 1.60 ppb |
| 2018-07-03 | C18070084-004B | 1.70 ppb |
| 2018-10-10 | C18100435-001B | 2.30 ppb |
| 2018-10-10 | C18100435-002B | 1.80 ppb |
| 2018-10-10 | C18100435-003B | 2.30 ppb |
| 2018-10-10 | C18100435-004B | 2.60 ppb |
| 2018-10-10 | C18100435-005B | 1.70 ppb |
| 2018-10-10 | C18100435-008A | 1.20 ppb |
| 2018-10-10 | C18100435-009B | 1.90 ppb |
| 2018-10-10 | C18100435-010A | 1.90 ppb |
| 2018-10-10 | C18100435-011B | 2.20 ppb |
| 2020-01-07 | C20010181-010A | 0.700 ppb |
| 2020-01-07 | C20010181-009B | 0.690 ppb |
| 2020-01-07 | C20010181-008A | 0.520 ppb |
| 2020-01-07 | C20010181-005B | 0.560 ppb |
| 2020-01-07 | C20010181-002B | 0.670 ppb |
| 2020-01-07 | C20010181-003B | 0.690 ppb |
| 2020-01-07 | C20010181-011B | 0.690 ppb |
| 2020-01-07 | C20010181-001B | 0.630 ppb |
| 2020-01-07 | C20010181-004B | ND |
| 2020-04-07 | C20040283-011B | 1.000 ppb |
| 2020-04-07 | C20040283-010A | 0.880 ppb |
| 2020-04-07 | C20040283-009B | 0.900 ppb |
| 2020-04-07 | C20040283-008A | 0.730 ppb |
| 2020-04-07 | C20040283-005B | 0.760 ppb |
| 2020-04-07 | C20040283-003B | 0.800 ppb |
| 2020-04-07 | C20040283-004B | 0.640 ppb |
| 2020-04-07 | C20040283-002B | 0.660 ppb |
| 2020-04-07 | C20040283-001B | 0.760 ppb |
| 2020-07-07 | C20070317-010A | 0.610 ppb |
| 2020-07-07 | C20070317-011B | 0.590 ppb |
| 2020-07-07 | C20070317-008A | 0.520 ppb |
| 2020-07-07 | C20070317-009B | 0.660 ppb |
| 2020-07-07 | C20070317-005B | 0.530 ppb |
| 2020-07-07 | C20070317-004B | 1.10 ppb |
| 2020-07-07 | C20070317-003B | 0.920 ppb |
| 2020-07-07 | C20070317-002B | 1.30 ppb |
| 2020-07-07 | C20070317-001B | 1.000 ppb |
| 2020-10-06 | C20100255-010A | ND |
| 2020-10-06 | C20100255-004B | 3.70 ppb |
| 2020-10-06 | C20100255-008A | 0.660 ppb |
| 2020-10-06 | C20100255-009B | ND |
| 2020-10-06 | C20100255-003B | 0.690 ppb |
| 2020-10-06 | C20100255-002B | 0.870 ppb |
| 2020-10-06 | C20100255-001B | 0.610 ppb |
| 2020-10-06 | C20100255-011B | 0.790 ppb |
| 2020-10-06 | C20100255-005B | ND |
| 2021-01-05 | C21010107-001B | 0.760 ppb |
| 2021-01-05 | C21010107-002B | 1.60 ppb |
| 2021-01-05 | C21010107-003B | 1.20 ppb |
| 2021-01-05 | C21010107-011B | 0.930 ppb |
| 2021-01-05 | C21010107-005B | 1.40 ppb |
| 2021-01-05 | C21010107-010A | 0.870 ppb |
| 2021-01-05 | C21010107-009B | 0.940 ppb |
| 2021-01-05 | C21010107-008A | 1.70 ppb |
| 2021-01-05 | C21010107-004B | ND |
| 2021-04-06 | C21040206-004B | 1.20 ppb |
| 2021-04-06 | C21040206-005B | 0.720 ppb |
| 2021-04-06 | C21040206-008A | 0.590 ppb |
| 2021-04-06 | C21040206-003B | 0.760 ppb |
| 2021-04-06 | C21040206-002B | 0.530 ppb |
| 2021-04-06 | C21040206-001B | 0.520 ppb |
| 2021-04-06 | C21040206-011B | 0.620 ppb |
| 2021-04-06 | C21040206-010A | 0.560 ppb |
| 2021-04-06 | C21040206-009B | 0.570 ppb |
| 2021-07-06 | C21070162-004B | 0.570 ppb |
| 2021-07-06 | C21070162-005B | ND |
| 2021-07-06 | C21070162-008A | ND |
| 2021-07-06 | C21070162-009B | 0.540 ppb |
| 2021-07-06 | C21070162-010A | 0.530 ppb |
| 2021-07-06 | C21070162-011B | ND |
| 2021-07-06 | C21070162-001B | 0.560 ppb |
| 2021-07-06 | C21070162-002B | 0.540 ppb |
| 2021-07-06 | C21070162-003B | 0.560 ppb |
| 2021-10-05 | C21100137-001B | 0.760 ppb |
| 2021-10-05 | C21100137-002B | 0.690 ppb |
| 2021-10-05 | C21100137-003B | 0.640 ppb |
| 2021-10-05 | C21100137-004B | 4.50 ppb |
| 2021-10-05 | C21100137-011B | 0.570 ppb |
| 2021-10-05 | C21100137-008A | ND |
| 2021-10-05 | C21100137-009B | 0.540 ppb |
| 2021-10-05 | C21100137-010A | 0.670 ppb |
| 2021-10-05 | C21100137-005B | ND |
| 2022-01-04 | C22010087-001B | 0.940 ppb |
| 2022-01-04 | C22010087-002B | 0.780 ppb |
| 2022-01-04 | C22010087-003B | 1.10 ppb |
| 2022-01-04 | C22010087-008A | 0.620 ppb |
| 2022-01-04 | C22010087-004B | 1.60 ppb |
| 2022-01-04 | C22010087-010A | 0.950 ppb |
| 2022-01-04 | C22010087-011B | 0.940 ppb |
| 2022-01-04 | C22010087-005B | 1.000 ppb |
| 2022-01-04 | C22010087-009B | 0.940 ppb |
| 2022-04-05 | C22040150-011B | ND |
| 2022-04-05 | C22040150-010A | ND |
| 2022-04-05 | C22040150-009B | ND |
| 2022-04-05 | C22040150-008A | ND |
| 2022-04-05 | C22040150-005B | ND |
| 2022-04-05 | C22040150-002B | ND |
| 2022-04-05 | C22040150-004B | 1.20 ppb |
| 2022-04-05 | C22040150-003B | 0.690 ppb |
| 2022-04-05 | C22040150-001B | ND |
| 2022-07-05 | C22070093-003B | 0.610 ppb |
| 2022-07-05 | C22070093-002B | 0.620 ppb |
| 2022-07-05 | C22070093-001B | ND |
| 2022-07-05 | C22070093-011B | ND |
| 2022-07-05 | C22070093-004B | 2.70 ppb |
| 2022-07-05 | C22070093-009B | ND |
| 2022-07-05 | C22070093-008A | ND |
| 2022-07-05 | C22070093-005B | ND |
| 2022-07-05 | C22070093-010A | ND |
| 2022-10-04 | C22100124-011B | 0.660 ppb |
| 2022-10-04 | C22100124-008A | 0.830 ppb |
| 2022-10-04 | C22100124-009B | 1.40 ppb |
| 2022-10-04 | C22100124-005B | 0.770 ppb |
| 2022-10-04 | C22100124-004B | 3.40 ppb |
| 2022-10-04 | C22100124-003B | 1.50 ppb |
| 2022-10-04 | C22100124-010A | 1.50 ppb |
| 2022-10-04 | C22100124-001B | 1.000 ppb |
| 2022-10-04 | C22100124-002B | 1.40 ppb |
| 2023-01-03 | C23010027-010A | 1.30 ppb |
| 2023-01-03 | C23010027-009B | 1.40 ppb |
| 2023-01-03 | C23010027-008A | 1.30 ppb |
| 2023-01-03 | C23010027-011B | 1.30 ppb |
| 2023-01-03 | C23010027-004B | 1.10 ppb |
| 2023-01-03 | C23010027-003B | 1.40 ppb |
| 2023-01-03 | C23010027-002B | 1.30 ppb |
| 2023-01-03 | C23010027-001B | 1.40 ppb |
| 2023-01-03 | C23010027-005B | 1.30 ppb |
| 2023-04-06 | C23040048-002B | 0.720 ppb |
| 2023-04-06 | C23040048-003B | ND |
| 2023-04-06 | C23040048-004B | 1.80 ppb |
| 2023-04-06 | C23040048-005B | ND |
| 2023-04-06 | C23040048-008A | ND |
| 2023-04-06 | C23040048-009B | ND |
| 2023-04-06 | C23040048-010A | ND |
| 2023-04-06 | C23040048-011B | ND |
| 2023-04-06 | C23040048-001B | ND |
| 2023-07-05 | C23070053-001B | ND |
| 2023-07-05 | C23070053-002B | 0.690 ppb |
| 2023-07-05 | C23070053-011B | ND |
| 2023-07-05 | C23070053-010A | ND |
| 2023-07-05 | C23070053-009B | ND |
| 2023-07-05 | C23070053-008A | ND |
| 2023-07-05 | C23070053-005B | ND |
| 2023-07-05 | C23070053-004B | 5.00 ppb |
| 2023-07-05 | C23070053-003B | 0.560 ppb |
| 2023-10-03 | C23100133-001B | 1.000 ppb |
| 2023-10-03 | C23100133-010A | ND |
| 2023-10-03 | C23100133-009B | ND |
| 2023-10-03 | C23100133-008A | ND |
| 2023-10-03 | C23100133-011B | ND |
| 2023-10-03 | C23100133-004B | 10.00 ppb |
| 2023-10-03 | C23100133-003B | 0.800 ppb |
| 2023-10-03 | C23100133-002B | 0.650 ppb |
| 2023-10-03 | C23100133-005B | 0.600 ppb |