Trichloroacetic acid
Ocean Twp Department of Utilities
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 0.639 ppb | 16 | 13 | ND - 2.52 ppb |
| 2015 | 0.780 ppb | 16 | 15 | ND - 1.58 ppb |
| 2016 | 0.265 ppb | 16 | 8 | ND - 1.000 ppb |
| 2017 | 0.106 ppb | 16 | 1 | ND - 1.70 ppb |
| 2018 | 0.601 ppb | 16 | 11 | ND - 1.35 ppb |
| 2019 | 0.0656 ppb | 16 | 1 | ND - 1.05 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 |
|---|---|---|
| 2014-01-31 | HA020614-09 | 2.52 ppb |
| 2014-01-31 | HA020614-11 | ND |
| 2014-01-31 | HA020614-08 | 0.620 ppb |
| 2014-01-31 | HA020614-10 | ND |
| 2014-04-29 | HA050514-12 | 0.790 ppb |
| 2014-04-29 | HA050514-11 | 0.670 ppb |
| 2014-04-29 | HA050514-10 | 0.780 ppb |
| 2014-04-29 | HA050514-13 | 0.600 ppb |
| 2014-07-29 | HA080114-10 | ND |
| 2014-07-29 | HA080114-09 | 0.910 ppb |
| 2014-07-29 | HA080114-12 | 0.630 ppb |
| 2014-07-29 | HA080114-11 | 0.440 ppb |
| 2014-10-27 | HA110514-17 | 0.540 ppb |
| 2014-10-27 | HA110514-18 | 0.480 ppb |
| 2014-10-27 | HA110514-15 | 0.880 ppb |
| 2014-10-27 | HA110514-16 | 0.360 ppb |
| 2015-01-26 | HA020415-09 | 0.340 ppb |
| 2015-01-26 | HA020415-11 | 0.320 ppb |
| 2015-01-26 | HA020415-10 | ND |
| 2015-01-26 | HA020415-08 | 0.390 ppb |
| 2015-04-23 | HA050615-06 | 1.18 ppb |
| 2015-04-23 | HA050615-07 | 1.26 ppb |
| 2015-04-23 | HA050615-08 | 1.58 ppb |
| 2015-04-23 | HA050615-09 | 1.36 ppb |
| 2015-07-21 | HA080115-15 | 0.580 ppb |
| 2015-07-21 | HA080115-12 | 0.820 ppb |
| 2015-07-21 | HA080115-13 | 0.430 ppb |
| 2015-07-21 | HA080115-14 | 1.28 ppb |
| 2015-10-19 | HA102815-12 | 0.800 ppb |
| 2015-10-19 | HA102815-11 | 0.840 ppb |
| 2015-10-19 | HA102815-14 | 0.450 ppb |
| 2015-10-19 | HA102815-13 | 0.850 ppb |
| 2016-01-19 | HA020416-06 | 0.640 ppb |
| 2016-01-19 | HA020416-07 | 0.770 ppb |
| 2016-01-19 | HA020416-09 | 0.580 ppb |
| 2016-01-19 | HA020416-08 | 0.610 ppb |
| 2016-04-18 | HA042216-19 | 0.230 ppb |
| 2016-04-18 | HA042216-17 | 0.220 ppb |
| 2016-04-18 | HA042216-18 | ND |
| 2016-04-18 | HA042216-16 | 0.190 ppb |
| 2016-07-18 | HA080416-20 | ND |
| 2016-07-18 | HA080416-19 | 1.000 ppb |
| 2016-07-18 | HA080406-21 | ND |
| 2016-07-18 | HA080416-22 | ND |
| 2016-10-17 | HA102516-20 | ND |
| 2016-10-17 | HA102516-21 | ND |
| 2016-10-17 | HA102516-18 | ND |
| 2016-10-17 | HA102516-19 | ND |
| 2017-01-13 | HA012017-35 | ND |
| 2017-01-13 | HA012017-37 | ND |
| 2017-01-13 | HA012017-36 | ND |
| 2017-01-13 | HA012017-38 | ND |
| 2017-04-13 | HA042717-15 | ND |
| 2017-04-13 | HA042717-17 | ND |
| 2017-04-13 | HA042717-14 | ND |
| 2017-04-13 | HA042717-16 | ND |
| 2017-07-10 | HA071917-30 | 1.70 ppb |
| 2017-07-10 | HA071917-28 | ND |
| 2017-07-10 | HA071917-27 | ND |
| 2017-07-10 | HA071917-29 | ND |
| 2017-10-10 | HA101317-23 | ND |
| 2017-10-10 | HA101317-22 | ND |
| 2017-10-10 | HA101317-20 | ND |
| 2017-10-10 | HA101317-21 | ND |
| 2018-01-08 | HA011818-16 | ND |
| 2018-01-08 | HA011818-15 | ND |
| 2018-01-08 | HA011818-18 | ND |
| 2018-01-08 | HA011818-17 | 1.21 ppb |
| 2018-04-09 | HA042318-17 | 1.06 ppb |
| 2018-04-09 | HA042318-15 | 1.08 ppb |
| 2018-04-09 | HA042318-16 | 0.590 ppb |
| 2018-04-09 | HA042318-18 | 1.16 ppb |
| 2018-07-10 | H071918_23 | 0.980 ppb |
| 2018-07-10 | HA071918_21 | 0.260 ppb |
| 2018-07-10 | HA071918_20 | 0.250 ppb |
| 2018-07-10 | HA071918_22 | 0.640 ppb |
| 2018-10-11 | HA102418_06 | 1.03 ppb |
| 2018-10-11 | HA102418_08 | 1.35 ppb |
| 2018-10-11 | HA102418_09 | ND |
| 2018-10-11 | HA102418_07 | ND |
| 2019-01-09 | HA022219_10 | ND |
| 2019-01-09 | HA022219_12 | ND |
| 2019-01-09 | HA022219_11 | ND |
| 2019-01-09 | HA022219_09 | ND |
| 2019-04-09 | HA041819_21 | ND |
| 2019-04-09 | HA041819_23 | 1.05 ppb |
| 2019-04-09 | HA041819_24 | ND |
| 2019-04-09 | HA041819_22 | ND |
| 2019-07-09 | HA071619_17 | ND |
| 2019-07-09 | HA071619_15 | ND |
| 2019-07-09 | HA071619_16 | ND |
| 2019-07-09 | HA071619_14 | ND |
| 2019-10-08 | HA101719_21 | ND |
| 2019-10-08 | HA101719_20 | ND |
| 2019-10-08 | HA101719_18 | ND |
| 2019-10-08 | HA101719_19 | ND |