1,2,4-Trichlorobenzene
Naval Station, Newport
NOTE: Naval Station, Newport purchases water from City of Newport which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by City of Newport.
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 | 2 | 0 | ND |
| 2017 | ND | 10 | 0 | ND |
| 2018 | ND | 8 | 0 | ND |
| 2019 | ND | 8 | 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
NOTE: Naval Station, Newport purchases water from City of Newport which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by City of Newport.
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-06 | 1401012-03_TO12 | ND |
| 2014-01-06 | 1401012-08_TO12 | ND |
| 2014-05-21 | 1402793-06_TO12 | ND |
| 2014-05-21 | 1402793-05_TO12 | ND |
| 2014-07-02 | 1403537-01_TO12 | ND |
| 2014-07-02 | 1403537-05_TO12 | ND |
| 2014-07-02 | 1403537-04_TO12 | ND |
| 2014-07-02 | 1403537-03_TO12 | ND |
| 2015-01-12 | 1501069-08_TO12 | ND |
| 2015-01-12 | 1501069-03_TO12 | ND |
| 2015-06-01 | 1502384-01_TO12 | ND |
| 2015-06-01 | 1502384-02_TO12 | ND |
| 2015-07-20 | 1503232-04_TO12 | ND |
| 2015-07-20 | 1503232-06_TO12 | ND |
| 2015-07-20 | 1503232-05_TO12 | ND |
| 2015-07-20 | 1503232-03_TO12 | ND |
| 2016-01-11 | 1600887-08_TO12 | ND |
| 2016-01-11 | 1600887-02_TO12 | ND |
| 2016-05-09 | 1602070-04_TO12 | ND |
| 2016-05-09 | 1602070-05_TO12 | ND |
| 2016-07-25 | 1603626-02_TO12 | ND |
| 2016-07-25 | 1603626-04_TO12 | ND |
| 2016-07-25 | 1603626-03_TO12 | ND |
| 2016-07-25 | 1603626-01_TO12 | ND |
| 2017-01-24 | 1701020-02_TO12 | ND |
| 2017-01-25 | 1701027-06_TO12 | ND |
| 2017-05-15 | 1702185-02_TO12 | ND |
| 2017-05-15 | 1702185-01_TO12 | ND |
| 2017-07-10 | 1703108-03_TO12 | ND |
| 2017-07-10 | 1703108-02_TO12 | ND |
| 2017-07-10 | 1703108-01_TO12 | ND |
| 2017-07-10 | 1703108-04_TO12 | ND |
| 2017-10-17 | 1710399-02_TO12 | ND |
| 2017-10-17 | 1710399-01_TO12 | ND |
| 2018-01-16 | 1800888-02_TO12 | ND |
| 2018-01-22 | 1800936-07_TO12 | ND |
| 2018-06-04 | 1802314-04_TO12 | ND |
| 2018-06-04 | 1802314-05_TO12 | ND |
| 2018-07-17 | 1803078-03_TO12 | ND |
| 2018-07-17 | 1803078-05_TO12 | ND |
| 2018-07-17 | 1803078-04_TO12 | ND |
| 2018-07-17 | 1803078-02_TO12 | ND |
| 2019-01-15 | 1900857-10_TO12 | ND |
| 2019-01-15 | 1900857-11_TO12 | ND |
| 2019-05-07 | 1901920-05_TO12 | ND |
| 2019-05-07 | 1901920-06_TO12 | ND |
| 2019-08-06 | 1903576-01_TO12 | ND |
| 2019-08-06 | 1903576-03_TO12 | ND |
| 2019-08-06 | 1903576-02_TO12 | ND |
| 2019-08-29 | 1904072-02_TO12 | ND |