1,2,4-Trichlorobenzene
Lockport
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 | 1 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 11 | 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 |
|---|---|---|
| 2014-07-08 | 1407438-001A | ND |
| 2015-08-04 | 1508226-001A | ND |
| 2015-08-04 | 1508226-003A | ND |
| 2015-08-04 | 1508226-005A | ND |
| 2015-08-04 | 1508226-007A | ND |
| 2015-08-04 | 1508226-009A | ND |
| 2018-03-20 | 1803E22-001A | ND |
| 2018-05-29 | 1805L28-001A | ND |
| 2018-06-28 | 18F1259-01_02 | ND |
| 2018-06-28 | 18F1260-01_02 | ND |
| 2018-08-07 | 1808611-001A | ND |
| 2018-08-07 | 1808611-003A | ND |
| 2018-08-07 | 1808611-005A | ND |
| 2018-08-07 | 1808611-007A | ND |
| 2018-08-14 | 1808C08-001A | ND |
| 2018-08-14 | 1808C08-003A | ND |
| 2018-10-17 | 1810D44-001A | ND |
| 2019-02-05 | 1902322-001A | ND |
| 2019-04-09 | 1904780-001A | ND |