1,2,4-Trichlorobenzene
Tri County Joint Municipal Authority
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 9 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-02-20 | 4021747-01 | ND |
2014-03-21 | 4031896-01 | ND |
2014-04-04 | 4040494-01 | ND |
2014-05-09 | 4051036-01 | ND |
2014-05-09 | 4051036-02 | ND |
2014-08-08 | 4080935-01 | ND |
2014-08-08 | 4080935-02 | ND |
2014-11-07 | 4110753-01 | ND |
2014-11-07 | 4110753-02 | ND |
2015-04-24 | 12698079 | ND |
2015-04-24 | 12698059 | ND |
2016-05-20 | 14338727 | ND |
2017-12-07 | 17241111 | ND |
2018-11-07 | 18K0900-01 | ND |
2019-10-02 | 19J1014-01 | ND |