1,2,4-Trichlorobenzene
Paw Homesite
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 | 8 | 0 | ND |
| 2015 | ND | 8 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-01-08 | 24405801 | ND |
| 2014-01-08 | 24405701 | ND |
| 2014-04-02 | 25334601 | ND |
| 2014-04-02 | 25334501 | ND |
| 2014-07-09 | 26110301 | ND |
| 2014-07-09 | 26110201 | ND |
| 2014-10-01 | 27098701 | ND |
| 2014-10-01 | 27098801 | ND |
| 2015-01-07 | 12297065 | ND |
| 2015-01-07 | 12297044 | ND |
| 2015-04-15 | 12642914 | ND |
| 2015-04-15 | 12642893 | ND |
| 2015-07-15 | 13023152 | ND |
| 2015-07-15 | 13023131 | ND |
| 2015-10-06 | 13399410 | ND |
| 2015-10-06 | 13399431 | ND |
| 2016-01-05 | 13763229 | ND |
| 2016-01-05 | 13763250 | ND |
| 2016-04-05 | 14115622 | ND |
| 2016-04-05 | 14115643 | ND |
| 2016-07-01 | 14583656 | ND |
| 2016-07-01 | 14583677 | ND |
| 2016-10-05 | 15088554 | ND |
| 2016-10-05 | 15088533 | ND |
| 2017-01-05 | 15529619 | ND |
| 2017-01-05 | 15529640 | ND |
| 2017-04-05 | 15950740 | ND |
| 2017-04-05 | 15950761 | ND |
| 2017-07-07 | 16426343 | ND |
| 2017-07-07 | 16426364 | ND |
| 2017-10-05 | 16892544 | ND |
| 2017-10-05 | 16892565 | ND |
| 2018-01-10 | 38158601 | ND |
| 2018-04-04 | 39069901 | ND |
| 2018-07-03 | 40201501 | ND |
| 2018-10-04 | 41308901 | ND |
| 2019-01-09 | 42495701 | ND |
| 2019-04-10 | 43656201 | ND |
| 2019-07-16 | 45013801 | ND |
| 2019-10-10 | 46829601 | ND |