1,2,4-Trichlorobenzene
Telford Borough Authority
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
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 | 14 | 0 | ND |
| 2015 | ND | 14 | 0 | ND |
| 2016 | ND | 16 | 0 | ND |
| 2017 | ND | 14 | 0 | ND |
| 2018 | ND | 14 | 0 | ND |
| 2019 | ND | 14 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 5 ppb
The EWG Health Guideline of 5 ppb for 1,2,4-trichlorobenzene was defined 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. This health guideline protects against hormone disruption.
EPA Maximum Contaminant
Level (MCL) 70 ppb
The legal limit for 1,2,4-trichlorobenzene, established in 1992, was based on a toxicity study in laboratory animals conducted in 1981. This limit may not fully protect against hormone disruption.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-11 | 20140538 | ND |
| 2014-02-11 | 20140540 | ND |
| 2014-02-11 | 20140539 | ND |
| 2014-04-02 | 20141150 | ND |
| 2014-04-02 | 20141147 | ND |
| 2014-04-02 | 20141149 | ND |
| 2014-04-02 | 20141148 | ND |
| 2014-06-03 | 20141878 | ND |
| 2014-07-16 | 20142431 | ND |
| 2014-07-16 | 20142433 | ND |
| 2014-07-16 | 20142432 | ND |
| 2014-11-05 | 14110360-003 | ND |
| 2014-11-05 | 14110360-002 | ND |
| 2014-11-05 | 14110360-001 | ND |
| 2015-02-11 | 12403511 | ND |
| 2015-02-11 | 12403553 | ND |
| 2015-02-11 | 12403532 | ND |
| 2015-04-14 | 12635032 | ND |
| 2015-04-14 | 12634948 | ND |
| 2015-04-14 | 12635011 | ND |
| 2015-04-14 | 12634969 | ND |
| 2015-04-14 | 12634990 | ND |
| 2015-07-14 | 13014661 | ND |
| 2015-07-14 | 13014663 | ND |
| 2015-07-14 | 13014662 | ND |
| 2015-10-07 | 13390809 | ND |
| 2015-10-07 | 13390788 | ND |
| 2015-10-07 | 13390767 | ND |
| 2016-01-18 | 13754457 | ND |
| 2016-03-02 | 13871947 | ND |
| 2016-03-02 | 13871926 | ND |
| 2016-04-13 | 14104822 | ND |
| 2016-04-13 | 14104906 | ND |
| 2016-04-13 | 14104864 | ND |
| 2016-04-13 | 14104885 | ND |
| 2016-04-13 | 14104843 | ND |
| 2016-07-13 | 14572195 | ND |
| 2016-07-13 | 14572249 | ND |
| 2016-07-13 | 14572297 | ND |
| 2016-07-13 | 14572276 | ND |
| 2016-07-13 | 14572222 | ND |
| 2016-10-12 | 15077664 | ND |
| 2016-10-12 | 15077706 | ND |
| 2016-10-12 | 15077685 | ND |
| 2017-02-15 | 15657714 | ND |
| 2017-02-15 | 15657693 | ND |
| 2017-02-15 | 15657735 | ND |
| 2017-05-03 | 16097063 | ND |
| 2017-05-03 | 16097042 | ND |
| 2017-05-03 | 16096979 | ND |
| 2017-05-03 | 16097021 | ND |
| 2017-05-03 | 16097000 | ND |
| 2017-08-02 | 16568590 | ND |
| 2017-08-02 | 16568569 | ND |
| 2017-08-02 | 16568548 | ND |
| 2017-11-01 | 17025477 | ND |
| 2017-11-01 | 17025456 | ND |
| 2017-11-01 | 17025498 | ND |
| 2018-02-12 | 20180562 | ND |
| 2018-02-12 | 20180561 | ND |
| 2018-02-12 | 20180560 | ND |
| 2018-05-03 | 20181778 | ND |
| 2018-05-03 | 20181777 | ND |
| 2018-05-03 | 20181776 | ND |
| 2018-05-03 | 20181775 | ND |
| 2018-05-03 | 20181774 | ND |
| 2018-08-01 | 20182931 | ND |
| 2018-08-01 | 20182933 | ND |
| 2018-08-01 | 20182932 | ND |
| 2018-11-27 | 8114737-01 | ND |
| 2018-11-27 | 8114737-02 | ND |
| 2018-11-27 | 8114737-03 | ND |
| 2019-02-06 | 20190503 | ND |
| 2019-02-06 | 20190505 | ND |
| 2019-02-06 | 20190504 | ND |
| 2019-05-01 | 20191635 | ND |
| 2019-05-01 | 20191636 | ND |
| 2019-05-01 | 20191633 | ND |
| 2019-05-01 | 20191634 | ND |
| 2019-05-01 | 20191637 | ND |
| 2019-08-07 | 20193060 | ND |
| 2019-08-07 | 20193062 | ND |
| 2019-08-07 | 20193061 | ND |
| 2019-11-06 | 20194361 | ND |
| 2019-11-06 | 20194363 | ND |
| 2019-11-06 | 20194362 | ND |