1,2,4-Trichlorobenzene
City of Chandler
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 |
|---|---|---|---|---|
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 5 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-05-31 | Q1821776006 | ND |
| 2018-05-31 | Q1821776002 | ND |
| 2018-10-15 | Q1840931002 | ND |
| 2018-10-15 | Q1840931004 | ND |
| 2018-10-15 | Q1840931006 | ND |
| 2019-03-19 | Q1911348006 | ND |
| 2019-03-19 | Q1911348009 | ND |
| 2019-03-19 | Q1911348011 | ND |
| 2019-03-19 | Q1911348012 | ND |
| 2019-09-11 | Q1963871003 | ND |
| 2020-03-24 | Q2012436007 | ND |
| 2020-03-24 | Q2012436009 | ND |
| 2020-03-24 | Q2012436011 | ND |
| 2020-06-23 | Q2025085009 | ND |
| 2021-05-04 | Q2111316005 | ND |
| 2021-05-04 | Q2111316011 | ND |
| 2021-05-04 | Q2111316009 | ND |
| 2021-05-04 | Q2111316007 | ND |
| 2021-12-15 | Q2135508002 | ND |
| 2022-03-31 | Q2210090007 | ND |
| 2022-03-31 | Q2210090009 | ND |
| 2022-03-31 | Q2210090011 | ND |
| 2022-03-31 | Q2210090013 | ND |
| 2022-03-31 | Q2210090015 | ND |
| 2023-01-12 | Q2301951016 | ND |
| 2023-01-12 | Q2301951018 | ND |
| 2023-01-12 | Q2301951020 | ND |
| 2023-10-02 | Q2342088004 | ND |
| 2023-10-02 | Q2342088006 | ND |