1,2,4-Trichlorobenzene
City of Apache Junction
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 | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 7 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-03-26 | 4032027-02 | ND |
| 2014-04-10 | 4040983-01 | ND |
| 2014-07-01 | 4070102-002 | ND |
| 2014-10-08 | 4100826-04 | ND |
| 2015-01-12 | 5010994-01 | ND |
| 2015-04-07 | 5040733-01V | ND |
| 2015-07-06 | 5070330-01 | ND |
| 2015-10-12 | 5101351-03 | ND |
| 2016-03-08 | 6030732-01V | ND |
| 2016-03-08 | 6030729-01V | ND |
| 2016-04-05 | 6040336-02V | ND |
| 2016-07-14 | 6071315-05 | ND |
| 2016-10-12 | 6101137-02 | ND |
| 2017-01-05 | 7010476-02V | ND |
| 2017-04-12 | 7041233-02 | ND |
| 2017-07-06 | 7070405-02VOC | ND |
| 2017-10-09 | 7100854-01 | ND |
| 2018-01-23 | 18A2317-02VOC | ND |
| 2018-01-23 | 18A2317-01 | ND |
| 2018-05-21 | 18E2136-02 | ND |
| 2018-05-21 | 18E2136-01 | ND |
| 2018-07-10 | 18G0973-07 | ND |
| 2018-07-10 | 18G0973-06 | ND |
| 2018-10-04 | 18J0628-01 | ND |
| 2019-01-22 | 19A2212-02 | ND |
| 2019-01-22 | 19A2212-01 | ND |
| 2019-04-04 | 19D0652-01 | ND |