Trichloroacetic acid
Philadelphia 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | 19.6 ppb | 48 | 48 | 7.00 ppb - 34.0 ppb |
2019 | 16.8 ppb | 199 | 199 | 4.47 ppb - 40.6 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 |
---|---|---|
2018-10-10 | DW181010-053 | 31.0 ppb |
2018-10-10 | DW181010-054 | 34.0 ppb |
2018-10-10 | DW181010-007 | 28.0 ppb |
2018-10-10 | DW181010-055 | 32.0 ppb |
2018-10-10 | DW181010-056 | 34.0 ppb |
2018-10-10 | DW181010-014 | 17.0 ppb |
2018-10-10 | DW181010-057 | 17.0 ppb |
2018-10-10 | DW181010-031 | 15.0 ppb |
2018-10-10 | DW181010-058 | 12.0 ppb |
2018-10-10 | DW181010-059 | 13.0 ppb |
2018-10-10 | DW181010-051 | 15.0 ppb |
2018-10-10 | DW181010-030 | 14.0 ppb |
2018-10-10 | DW181010-047 | 21.0 ppb |
2018-10-10 | DW181010-024 | 23.0 ppb |
2018-10-10 | DW181010-017 | 14.0 ppb |
2018-10-10 | DW181010-018 | 15.0 ppb |
2018-11-07 | DW181107-052 | 30.0 ppb |
2018-11-07 | DW181107-053 | 32.0 ppb |
2018-11-07 | DW181107-006 | 21.0 ppb |
2018-11-07 | DW181107-054 | 30.0 ppb |
2018-11-07 | DW181107-055 | 30.0 ppb |
2018-11-07 | DW181107-013 | 17.0 ppb |
2018-11-07 | DW181107-023 | 29.0 ppb |
2018-11-07 | DW181107-016 | 25.0 ppb |
2018-11-07 | DW181107-017 | 23.0 ppb |
2018-11-08 | DW181108-017 | 21.0 ppb |
2018-11-08 | DW181108-058 | 26.0 ppb |
2018-11-08 | DW181108-057 | 20.0 ppb |
2018-11-08 | DW181108-044 | 23.0 ppb |
2018-11-08 | DW181108-047 | 26.0 ppb |
2018-11-08 | DW181108-056 | 31.0 ppb |
2018-11-08 | DW181108-061 | 29.0 ppb |
2018-12-12 | DW181212-051 | 15.0 ppb |
2018-12-12 | DW181212-052 | 13.0 ppb |
2018-12-12 | DW181212-006 | 18.0 ppb |
2018-12-12 | DW181212-053 | 14.0 ppb |
2018-12-12 | DW181212-054 | 13.0 ppb |
2018-12-12 | DW181212-013 | 13.0 ppb |
2018-12-12 | DW181212-055 | 12.0 ppb |
2018-12-12 | DW181212-029 | 9.00 ppb |
2018-12-12 | DW181212-056 | 7.00 ppb |
2018-12-12 | DW181212-057 | 7.00 ppb |
2018-12-12 | DW181212-049 | 8.00 ppb |
2018-12-12 | DW181212-028 | 15.0 ppb |
2018-12-12 | DW181212-045 | 13.0 ppb |
2018-12-12 | DW181212-022 | 13.0 ppb |
2018-12-12 | DW181212-061 | 12.0 ppb |
2018-12-12 | DW181212-016 | 10.00 ppb |
2019-01-09 | DW190109-051 | 15.0 ppb |
2019-01-09 | DW190109-052 | 14.0 ppb |
2019-01-09 | DW190109-006 | 14.0 ppb |
2019-01-09 | DW190109-053 | 15.0 ppb |
2019-01-09 | DW190109-054 | 15.0 ppb |
2019-01-09 | DW190109-013 | 13.0 ppb |
2019-01-09 | DW190109-055 | 13.0 ppb |
2019-01-09 | DW190109-029 | 12.0 ppb |
2019-01-09 | DW190109-056 | 9.00 ppb |
2019-01-09 | DW190109-057 | 9.00 ppb |
2019-01-09 | DW190109-049 | 10.00 ppb |
2019-01-09 | DW190109-028 | 15.0 ppb |
2019-01-09 | DW190109-045 | 14.0 ppb |
2019-01-09 | DW190109-022 | 14.0 ppb |
2019-01-09 | DW190109-061 | 14.0 ppb |
2019-01-09 | DW190109-016 | 12.0 ppb |
2019-02-13 | DW190213-052 | 13.0 ppb |
2019-02-13 | DW190213-053 | 13.8 ppb |
2019-02-13 | DW190213-006 | 11.0 ppb |
2019-02-13 | DW190213-054 | 12.9 ppb |
2019-02-13 | DW190213-055 | 13.9 ppb |
2019-02-13 | DW190213-013 | 6.10 ppb |
2019-02-13 | DW190213-056 | 7.00 ppb |
2019-02-13 | DW190213-030 | 7.00 ppb |
2019-02-13 | DW190213-057 | 7.60 ppb |
2019-02-13 | DW190213-058 | 8.10 ppb |
2019-02-13 | DW190213-050 | 9.00 ppb |
2019-02-13 | DW190213-029 | 10.00 ppb |
2019-02-13 | DW190213-046 | 9.00 ppb |
2019-02-13 | DW190213-023 | 10.00 ppb |
2019-02-13 | DW190213-016 | 7.00 ppb |
2019-02-13 | DW190213-017 | 7.00 ppb |
2019-02-27 | DW190227-053 | 12.4 ppb |
2019-02-27 | DW190227-054 | 13.1 ppb |
2019-02-27 | DW190227-055 | 12.3 ppb |
2019-02-27 | DW190227-052 | 7.40 ppb |
2019-02-27 | DW190227-056 | 9.80 ppb |
2019-02-27 | DW190227-057 | 6.90 ppb |
2019-02-27 | DW190227-058 | 6.70 ppb |
2019-03-13 | DW190313-052 | 13.6 ppb |
2019-03-13 | DW190313-053 | 13.9 ppb |
2019-03-13 | DW190313-006 | 13.1 ppb |
2019-03-13 | DW190313-054 | 13.5 ppb |
2019-03-13 | DW190313-055 | 15.3 ppb |
2019-03-13 | DW190313-013 | 8.10 ppb |
2019-03-13 | DW190313-056 | 7.70 ppb |
2019-03-13 | DW190313-030 | 7.40 ppb |
2019-03-13 | DW190313-057 | 11.9 ppb |
2019-03-13 | DW190313-058 | 10.1 ppb |
2019-03-13 | DW190313-050 | 6.70 ppb |
2019-03-13 | DW190313-029 | 12.9 ppb |
2019-03-13 | DW190313-046 | 10.00 ppb |
2019-03-13 | DW190313-023 | 10.3 ppb |
2019-03-13 | DW190313-016 | 7.70 ppb |
2019-03-13 | DW190313-017 | 8.00 ppb |
2019-04-10 | 9043551-01 | 9.36 ppb |
2019-04-10 | 9043551-05 | 8.58 ppb |
2019-04-10 | 9043554-01 | 8.79 ppb |
2019-04-10 | 9043551-02 | 9.58 ppb |
2019-04-10 | 9043551-04 | 8.87 ppb |
2019-04-10 | 9043554-02 | 5.14 ppb |
2019-04-10 | 9043550-01 | 6.50 ppb |
2019-04-10 | 9043552-02 | 4.62 ppb |
2019-04-10 | 9043550-02 | 4.79 ppb |
2019-04-10 | 9043550-03 | 4.90 ppb |
2019-04-10 | 9043552-04 | 5.08 ppb |
2019-04-10 | 9043552-01 | 8.56 ppb |
2019-04-10 | 9043552-03 | 6.83 ppb |
2019-04-10 | 9043554-06 | 6.96 ppb |
2019-04-10 | 9043554-03 | 5.10 ppb |
2019-04-10 | 9043554-04 | 4.79 ppb |
2019-05-15 | DW190515-053 | 20.2 ppb |
2019-05-15 | DW190515-054 | 19.6 ppb |
2019-05-15 | DW190515-007 | 22.7 ppb |
2019-05-15 | DW190515-055 | 20.4 ppb |
2019-05-15 | DW190515-056 | 20.4 ppb |
2019-05-15 | DW190515-014 | 25.8 ppb |
2019-05-15 | DW190515-057 | 21.5 ppb |
2019-05-15 | DW190515-031 | 22.2 ppb |
2019-05-15 | DW190515-059 | 21.7 ppb |
2019-05-15 | DW190515-051 | 17.8 ppb |
2019-05-15 | DW190515-030 | 21.3 ppb |
2019-05-15 | DW190515-066 | 22.8 ppb |
2019-05-15 | DW190515-024 | 21.4 ppb |
2019-05-15 | DW190515-017 | 21.4 ppb |
2019-05-15 | DW190515-018 | 23.6 ppb |
2019-05-16 | DW190516-053 | 27.6 ppb |
2019-06-12 | DW190612-053 | 29.4 ppb |
2019-06-12 | DW190612-054 | 30.5 ppb |
2019-06-12 | DW190612-007 | 34.7 ppb |
2019-06-12 | DW190612-055 | 30.7 ppb |
2019-06-12 | DW190612-056 | 31.6 ppb |
2019-06-12 | DW190612-014 | 29.4 ppb |
2019-06-12 | DW190612-057 | 26.4 ppb |
2019-06-12 | DW190612-031 | 32.2 ppb |
2019-06-12 | DW190612-058 | 14.2 ppb |
2019-06-12 | DW190612-059 | 14.0 ppb |
2019-06-12 | DW190612-051 | 16.3 ppb |
2019-06-12 | DW190612-030 | 30.3 ppb |
2019-06-12 | DW190612-047 | 28.6 ppb |
2019-06-12 | DW190612-024 | 27.1 ppb |
2019-06-12 | DW190612-017 | 25.5 ppb |
2019-06-12 | DW190612-018 | 27.4 ppb |
2019-07-10 | DW190710-053 | 39.0 ppb |
2019-07-10 | DW190710-054 | 37.6 ppb |
2019-07-10 | DW190710-007 | 35.4 ppb |
2019-07-10 | DW190710-055 | 37.2 ppb |
2019-07-10 | DW190710-056 | 37.3 ppb |
2019-07-10 | DW190710-014 | 21.3 ppb |
2019-07-10 | DW190710-057 | 27.6 ppb |
2019-07-10 | DW190710-058 | 26.2 ppb |
2019-07-10 | DW190710-059 | 25.0 ppb |
2019-07-10 | DW190710-051 | 20.5 ppb |
2019-07-10 | DW190710-047 | 30.2 ppb |
2019-07-10 | DW190710-024 | 28.7 ppb |
2019-07-10 | DW190710-017 | 22.8 ppb |
2019-07-10 | DW190710-018 | 21.1 ppb |
2019-07-12 | DW190712-050 | 30.0 ppb |
2019-07-12 | DW190712-049 | 32.1 ppb |
2019-07-31 | 9076788-12 | 38.3 ppb |
2019-07-31 | 9076788-16 | 36.2 ppb |
2019-07-31 | 9076788-01 | 24.6 ppb |
2019-07-31 | 9076788-13 | 40.6 ppb |
2019-07-31 | 9076788-15 | 39.8 ppb |
2019-07-31 | 9076788-02 | 31.8 ppb |
2019-07-31 | 9076788-14 | 11.6 ppb |
2019-07-31 | 9076788-07 | 25.9 ppb |
2019-07-31 | 9076788-19 | 17.0 ppb |
2019-07-31 | 9076788-18 | 18.3 ppb |
2019-07-31 | 9076788-09 | 22.6 ppb |
2019-07-31 | 9076788-06 | 30.4 ppb |
2019-07-31 | 9076788-08 | 36.8 ppb |
2019-07-31 | 9076788-38 | 30.3 ppb |
2019-07-31 | 9076788-03 | 28.5 ppb |
2019-07-31 | 9076788-04 | 28.5 ppb |
2019-08-14 | 9084050-02 | 26.2 ppb |
2019-08-14 | 9084050-03 | 26.4 ppb |
2019-08-14 | 9084050-04 | 26.3 ppb |
2019-08-14 | 9084053-01 | 24.1 ppb |
2019-08-14 | 9084053-02 | 15.1 ppb |
2019-08-14 | 9084053-03 | 14.7 ppb |
2019-08-14 | 9084055-05 | 23.5 ppb |
2019-08-14 | DW190814-025 | 35.1 ppb |
2019-08-14 | DW190814-041 | 32.0 ppb |
2019-08-14 | DW190814-048 | 25.5 ppb |
2019-08-14 | DW190814-003 | 22.0 ppb |
2019-08-14 | DW190814-023 | 17.9 ppb |
2019-08-14 | DW190814-002 | 31.5 ppb |
2019-08-14 | DW190814-019 | 26.7 ppb |
2019-08-14 | DW190814-051 | 23.8 ppb |
2019-08-14 | DW190814-052 | 23.4 ppb |
2019-10-09 | 9103110-01 | 7.02 ppb |
2019-10-09 | 9103110-02 | 6.75 ppb |
2019-10-09 | 9103101-01 | 7.13 ppb |
2019-10-09 | 9103110-03 | 6.96 ppb |
2019-10-09 | 9103110-04 | 7.41 ppb |
2019-10-09 | 9103101-02 | 5.71 ppb |
2019-10-09 | 9103115-01 | 4.47 ppb |
2019-10-09 | 9103102-02 | 4.90 ppb |
2019-10-09 | 9103115-02 | 6.07 ppb |
2019-10-09 | 9103115-03 | 6.01 ppb |
2019-10-09 | 9103102-04 | 5.89 ppb |
2019-10-09 | 9103102-01 | 7.26 ppb |
2019-10-09 | 9103102-03 | 5.80 ppb |
2019-10-09 | 9103101-05 | 5.54 ppb |
2019-10-09 | 9103101-03 | 5.04 ppb |
2019-10-09 | 9103101-04 | 4.93 ppb |
2019-11-26 | 9114792-05 | 20.8 ppb |
2019-11-26 | 9114787-01 | 16.8 ppb |
2019-11-26 | 9114791-01 | 17.1 ppb |
2019-11-26 | 9114792-06 | 16.9 ppb |
2019-11-26 | 9114792-07 | 16.7 ppb |
2019-11-26 | 9114792-01 | 8.41 ppb |
2019-11-26 | 9114789-01 | 12.3 ppb |
2019-11-26 | 9114791-02 | 7.25 ppb |
2019-11-26 | 9114789-02 | 10.00 ppb |
2019-11-26 | 9114789-03 | 8.81 ppb |
2019-11-26 | 9114791-06 | 9.22 ppb |
2019-11-26 | 9114792-04 | 10.1 ppb |
2019-11-26 | 9114792-03 | 14.0 ppb |
2019-11-26 | 9114792-02 | 11.4 ppb |
2019-11-26 | 9114791-03 | 8.57 ppb |
2019-11-26 | 9114791-04 | 7.74 ppb |
2019-12-11 | 9122912-01 | 18.9 ppb |
2019-12-11 | 9122912-02 | 16.6 ppb |
2019-12-11 | 9122911-01RE | 17.9 ppb |
2019-12-11 | 9122912-03 | 19.9 ppb |
2019-12-11 | 9122912-04 | 15.5 ppb |
2019-12-11 | 9122911-02 | 13.0 ppb |
2019-12-11 | 9122909-01 | 13.3 ppb |
2019-12-11 | 9122910-02RE | 15.8 ppb |
2019-12-11 | 9122909-02 | 11.4 ppb |
2019-12-11 | 9122909-03 | 11.1 ppb |
2019-12-11 | 9122910-04RE | 15.0 ppb |
2019-12-11 | 9122910-01 | 17.7 ppb |
2019-12-11 | 9122910-03 | 15.4 ppb |
2019-12-11 | 9122911-05 | 15.9 ppb |
2019-12-11 | 9122911-03RE | 13.8 ppb |
2019-12-11 | 9122911-04RE | 14.8 ppb |