1,2,4-Trichlorobenzene
Newport Center Water System
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | N/A | 0 | 0 | N/A |
2015 | ND | 2 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 4 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2015-03-23 | 1503-05159-001 | ND |
2015-03-23 | 1503-05159-002 | ND |
2018-03-19 | 1803-06002-001 | ND |
2018-03-19 | 1803-06002-002 | ND |
2018-08-28 | 1808-21826-001 | ND |
2018-12-19 | 1812-32671-001 | ND |
2019-03-28 | 1903-06812-001 | ND |
2019-06-18 | 1906-14335-001 | ND |
2019-12-30 | 2001-00162-001 | ND |