1,2,4-Trichlorobenzene
Gettysburg Municipal 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 | 10 | 0 | ND |
| 2019 | ND | 9 | 0 | ND |
| 2020 | ND | 13 | 0 | ND |
| 2021 | ND | 11 | 0 | ND |
| 2022 | ND | 10 | 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 |
|---|---|---|
| 2018-02-16 | 8004942-01 | ND |
| 2018-02-16 | 8004942-04 | ND |
| 2018-02-16 | 8004942-02 | ND |
| 2018-02-16 | 8004942-03 | ND |
| 2018-06-07 | 8016343-03 | ND |
| 2018-06-07 | 8016343-04 | ND |
| 2018-09-19 | 8028077-02 | ND |
| 2018-09-19 | 8028077-01 | ND |
| 2018-12-11 | 8037566-01 | ND |
| 2018-12-11 | 8037566-02 | ND |
| 2019-03-13 | 9008380-02 | ND |
| 2019-03-13 | 9008380-01 | ND |
| 2019-03-19 | 9009257-01 | ND |
| 2019-06-05 | 9019242-03 | ND |
| 2019-06-05 | 9019242-02 | ND |
| 2019-06-05 | 9019242-04 | ND |
| 2019-06-05 | 9019242-01 | ND |
| 2019-11-27 | 9042107-02 | ND |
| 2019-11-27 | 9042107-01 | ND |
| 2020-03-03 | 21965949.00 | ND |
| 2020-03-03 | 21965928.00 | ND |
| 2020-06-03 | 22349841.00 | ND |
| 2020-06-03 | 22349820.00 | ND |
| 2020-08-18 | 22936904.00 | ND |
| 2020-08-18 | 22936883.00 | ND |
| 2020-08-19 | 22936862.00 | ND |
| 2020-08-19 | 22936841.00 | ND |
| 2020-08-24 | 22936972.00 | ND |
| 2020-08-24 | 22936951.00 | ND |
| 2020-08-24 | 22936930.00 | ND |
| 2020-12-01 | 23480645.00 | ND |
| 2020-12-01 | 23480624.00 | ND |
| 2021-03-02 | 24185786.00 | ND |
| 2021-03-02 | 24185765.00 | ND |
| 2021-06-21 | 24770289.00 | ND |
| 2021-06-21 | 24770291.00 | ND |
| 2021-06-21 | 24770288.00 | ND |
| 2021-06-21 | 24770290.00 | ND |
| 2021-06-23 | 24770292.00 | ND |
| 2021-08-18 | 25160065.00 | ND |
| 2021-08-18 | 25160086.00 | ND |
| 2021-10-19 | 25531531.00 | ND |
| 2021-11-02 | 25531859.00 | ND |
| 2022-01-18 | 26063420.00 | ND |
| 2022-02-01 | 26063713.00 | ND |
| 2022-04-12 | 26589393.00 | ND |
| 2022-04-12 | 26589414.00 | ND |
| 2022-04-19 | 26589479.00 | ND |
| 2022-07-26 | 27174029.00 | ND |
| 2022-07-26 | 27174008.00 | ND |
| 2022-07-26 | 27173987.00 | ND |
| 2022-10-11 | 27768758.00 | ND |
| 2022-10-11 | 27768737.00 | ND |
| 2023-02-21 | 28466269.00 | ND |
| 2023-02-21 | 28466248.00 | ND |
| 2023-02-28 | 28466359.00 | ND |
| 2023-02-28 | 28466380.00 | ND |
| 2023-03-21 | 28645589.00 | ND |
| 2023-04-18 | 28839826.00 | ND |
| 2023-04-18 | 28839805.00 | ND |
| 2023-04-25 | 28840173.00 | ND |
| 2023-04-25 | 28840152.00 | ND |
| 2023-05-16 | 29040428.00 | ND |
| 2023-08-01 | 29436201.00 | ND |
| 2023-08-01 | 29436180.00 | ND |
| 2023-10-24 | 30014340.00 | ND |
| 2023-10-24 | 30014319.00 | ND |