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 |
|---|---|---|---|---|
| 2018 | ND | 14 | 0 | ND |
| 2019 | ND | 14 | 0 | ND |
| 2020 | ND | 14 | 0 | ND |
| 2021 | ND | 12 | 0 | ND |
| 2022 | ND | 14 | 0 | ND |
| 2023 | ND | 14 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-02-12 | 20180562 | ND |
| 2018-02-12 | 20180560 | ND |
| 2018-02-12 | 20180561 | ND |
| 2018-05-03 | 20181778 | ND |
| 2018-05-03 | 20181777 | ND |
| 2018-05-03 | 20181776 | ND |
| 2018-05-03 | 20181774 | ND |
| 2018-05-03 | 20181775 | ND |
| 2018-08-01 | 20182933 | ND |
| 2018-08-01 | 20182931 | ND |
| 2018-08-01 | 20182932 | ND |
| 2018-11-27 | 8114737-02 | ND |
| 2018-11-27 | 8114737-01 | ND |
| 2018-11-27 | 8114737-03 | ND |
| 2019-02-06 | 20190503 | ND |
| 2019-02-06 | 20190504 | ND |
| 2019-02-06 | 20190505 | ND |
| 2019-05-01 | 20191634 | ND |
| 2019-05-01 | 20191637 | ND |
| 2019-05-01 | 20191635 | ND |
| 2019-05-01 | 20191633 | ND |
| 2019-05-01 | 20191636 | ND |
| 2019-08-07 | 20193060 | ND |
| 2019-08-07 | 20193062 | ND |
| 2019-08-07 | 20193061 | ND |
| 2019-11-06 | 20194363 | ND |
| 2019-11-06 | 20194361 | ND |
| 2019-11-06 | 20194362 | ND |
| 2020-02-05 | 21669871.00 | ND |
| 2020-02-05 | 21669850.00 | ND |
| 2020-02-05 | 21669829.00 | ND |
| 2020-05-06 | 22218187.00 | ND |
| 2020-05-06 | 22218166.00 | ND |
| 2020-05-06 | 22218145.00 | ND |
| 2020-05-06 | 22218124.00 | ND |
| 2020-05-06 | 22218103.00 | ND |
| 2020-08-05 | 22610578.00 | ND |
| 2020-08-05 | 22610599.00 | ND |
| 2020-08-05 | 22610620.00 | ND |
| 2020-11-04 | 23364693.00 | ND |
| 2020-11-04 | 23364714.00 | ND |
| 2020-12-01 | 23540048.00 | ND |
| 2021-02-03 | 23891150.00 | ND |
| 2021-02-03 | 23891192.00 | ND |
| 2021-02-03 | 23891171.00 | ND |
| 2021-05-19 | 24441398.00 | ND |
| 2021-05-19 | 24441356.00 | ND |
| 2021-05-19 | 24441440.00 | ND |
| 2021-05-19 | 24441419.00 | ND |
| 2021-05-19 | 24441377.00 | ND |
| 2021-08-04 | 24831805.00 | ND |
| 2021-08-04 | 24831826.00 | ND |
| 2021-11-03 | 25590464.00 | ND |
| 2021-11-03 | 25590443.00 | ND |
| 2022-02-02 | 26119948.00 | ND |
| 2022-02-02 | 26119969.00 | ND |
| 2022-03-02 | 26289897.00 | ND |
| 2022-05-04 | 26651306.00 | ND |
| 2022-05-04 | 26651285.00 | ND |
| 2022-05-04 | 26651264.00 | ND |
| 2022-05-04 | 26651243.00 | ND |
| 2022-06-08 | 26845260.00 | ND |
| 2022-08-03 | 27236555.00 | ND |
| 2022-08-03 | 27236576.00 | ND |
| 2022-08-03 | 27236534.00 | ND |
| 2022-11-02 | 27825168.00 | ND |
| 2022-11-02 | 27825189.00 | ND |
| 2022-11-02 | 27825147.00 | ND |
| 2023-02-01 | 28351665.00 | ND |
| 2023-02-01 | 28351686.00 | ND |
| 2023-02-01 | 28351707.00 | ND |
| 2023-05-22 | 28902944.00 | ND |
| 2023-05-22 | 28902942.00 | ND |
| 2023-05-22 | 28902941.00 | ND |
| 2023-05-22 | 28902945.00 | ND |
| 2023-05-22 | 28902943.00 | ND |
| 2023-08-02 | 29499980.00 | ND |
| 2023-08-02 | 29499959.00 | ND |
| 2023-08-02 | 29499938.00 | ND |
| 2023-11-01 | 30073665.00 | ND |
| 2023-11-01 | 30073644.00 | ND |
| 2023-11-01 | 30073623.00 | ND |