1,2,4-Trichlorobenzene
Del-Co Water Company Inc.
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 | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-01-07 | 14-10161-03B | ND |
| 2014-01-07 | 14-10164-03B | ND |
| 2014-01-07 | 14-10165-01B | ND |
| 2014-05-07 | 14-15406-01B | ND |
| 2014-06-30 | 14-18397-01B | ND |
| 2015-01-05 | 15-10021-01B | ND |
| 2015-01-05 | 15-10022-01B | ND |
| 2015-06-08 | 15-17517-01B | ND |
| 2016-01-04 | 16-10029-01B | ND |
| 2016-01-04 | 16-10028-01B | ND |
| 2016-06-01 | 16-17762-01B | ND |
| 2017-01-10 | 17-10507-01 | ND |
| 2017-01-10 | 17-10508-01 | ND |
| 2017-01-10 | 17-10509-01 | ND |
| 2017-06-19 | 17-20888-01B | ND |
| 2018-01-02 | 18-10016-01B | ND |
| 2018-01-02 | 18-10017-01B | ND |
| 2019-01-07 | 19-10396-01 | ND |
| 2019-01-07 | 19-10396-02 | ND |