1,2,4-Trichlorobenzene
Pineora Water System
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 | 2 | 0 | ND |
| 2018 | ND | 2 | 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 |
|---|---|---|
| 2014-01-15 | AI26751 | ND |
| 2014-01-15 | AI26750 | ND |
| 2014-04-21 | AI38400 | ND |
| 2014-04-21 | AI38399 | ND |
| 2014-07-08 | AI45066 | ND |
| 2014-07-08 | AI45065 | ND |
| 2014-10-13 | AI57353 | ND |
| 2014-10-13 | AI57352 | ND |
| 2015-01-27 | AI63543 | ND |
| 2015-01-27 | AI63542 | ND |
| 2015-04-07 | AI74281 | ND |
| 2015-04-07 | AI74282 | ND |
| 2015-07-07 | AI81993 | ND |
| 2015-07-07 | AI81992 | ND |
| 2015-10-20 | AI99500 | ND |
| 2015-10-20 | AI99499 | ND |
| 2016-03-09 | AJ07940 | ND |
| 2016-03-09 | AJ07939 | ND |
| 2017-05-16 | AJ55741 | ND |
| 2017-05-16 | AJ55740 | ND |
| 2018-02-20 | AJ84372 | ND |
| 2018-02-20 | AJ84371 | ND |
| 2019-04-08 | AK14895 | ND |
| 2019-04-08 | AK14896 | ND |