1,2,4-Trichlorobenzene
Doylestown Borough Water Department
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 | 5 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2014-01-22 | L4867559-1 | ND |
| 2014-01-22 | L4867559-2 | ND |
| 2014-02-25 | L4899027-2 | ND |
| 2014-02-25 | L4899027-3 | ND |
| 2014-02-25 | L4899027-1 | ND |
| 2015-01-13 | 12274528 | ND |
| 2015-01-13 | 12274582 | ND |
| 2015-02-03 | 12389811 | ND |
| 2015-02-03 | 12389865 | ND |
| 2015-02-03 | 12389919 | ND |
| 2016-02-05 | 13858668 | ND |
| 2016-02-05 | 13858722 | ND |
| 2016-02-05 | 13858560 | ND |
| 2016-02-05 | 13858614 | ND |
| 2016-02-05 | 13858506 | ND |
| 2017-01-06 | 15503058 | ND |
| 2017-01-06 | 15502900 | ND |
| 2017-01-06 | 15502952 | ND |
| 2017-01-06 | 15503110 | ND |
| 2017-01-06 | 15503006 | ND |
| 2018-01-12 | L6983060-3 | ND |
| 2018-01-12 | L6983058-2 | ND |
| 2018-01-12 | L6983060-2 | ND |
| 2018-01-12 | L6983058-1 | ND |
| 2018-01-12 | L6983060-1 | ND |
| 2019-01-31 | L7090358-2 | ND |
| 2019-01-31 | L7090359-1 | ND |
| 2019-01-31 | L7090359-2 | ND |
| 2019-01-31 | L7090358-3 | ND |
| 2019-01-31 | L7090358-1 | ND |