1,2,4-Trichlorobenzene
Kinneloa Irrigation District
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 | 7 | 0 | ND |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 6 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 6 | 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 |
|---|---|---|
| 2014-04-07 | 9588-015-0920 | ND |
| 2014-04-07 | 9588-009-0900 | ND |
| 2014-04-07 | 9588-008-0930 | ND |
| 2014-04-07 | 9588-007-1005 | ND |
| 2014-04-07 | 9588-005-0950 | ND |
| 2014-04-07 | 9588-003-0910 | ND |
| 2014-04-07 | 9588-002-0940 | ND |
| 2015-04-09 | 9588-002-0955 | ND |
| 2015-04-09 | 9588-003-0935 | ND |
| 2015-04-09 | 9588-005-1005 | ND |
| 2015-04-09 | 9588-015-1020 | ND |
| 2015-04-09 | 9588-007-0945 | ND |
| 2015-04-09 | 9588-009-0925 | ND |
| 2016-04-18 | 9588-002-0950 | ND |
| 2016-04-18 | 9588-015-0940 | ND |
| 2016-04-18 | 9588-009-0905 | ND |
| 2016-04-18 | 9588-003-0915 | ND |
| 2016-04-18 | 9588-007-0930 | ND |
| 2016-04-18 | 9588-005-1005 | ND |
| 2017-04-10 | 9588-015-0925 | ND |
| 2017-04-10 | 9588-002-0930 | ND |
| 2017-04-10 | 9588-003-0910 | ND |
| 2017-04-10 | 9588-007-0915 | ND |
| 2017-04-10 | 9588-005-0940 | ND |
| 2017-04-10 | 9588-009-0900 | ND |
| 2018-04-17 | 9588-005-0950 | ND |
| 2018-04-17 | 9588-009-0910 | ND |
| 2018-04-17 | 9588-015-0935 | ND |
| 2018-04-17 | 9588-003-0915 | ND |
| 2018-04-17 | 9588-007-0925 | ND |
| 2019-02-04 | 9588-002-0900 | ND |
| 2019-04-04 | 9588-009-1035 | ND |
| 2019-04-04 | 9588-015-1100 | ND |
| 2019-04-04 | 9588-003-1045 | ND |
| 2019-04-04 | 9588-005-1145 | ND |
| 2019-04-04 | 9588-007-1120 | ND |