1,2,4-Trichlorobenzene
Spinnaker Point
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 | ND | 4 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-01-21 | C317135-01 | ND |
2014-05-28 | C403283-01 | ND |
2014-09-23 | C412450-01 | ND |
2014-10-28 | C412145-01 | ND |
2015-01-27 | ND | |
2015-05-12 | ND | |
2015-07-28 | ND | |
2015-11-03 | ND | |
2016-02-17 | C516136-01 | ND |
2016-05-03 | CZ03430-01 | ND |
2016-08-30 | CZ08475-01 | ND |
2016-08-30 | CZ08475-03 | ND |
2016-10-25 | CZ13876-01 | ND |
2017-11-07 | CA13325-01 | ND |
2018-10-09 | CB14420-01 | ND |
2019-09-11 | CC10690-01 | ND |
2019-10-15 | CC15942-01 | ND |