1,2,4-Trichlorobenzene
Yuma Lakes Resort
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 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 12 | 0 | ND |
| 2018 | ND | 3 | 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 |
|---|---|---|
| 2017-02-01 | 201702020172V | ND |
| 2017-02-01 | 201702020171V | ND |
| 2017-02-01 | 201702020170V | ND |
| 2017-04-12 | 201704130599V | ND |
| 2017-04-12 | 201704130598V | ND |
| 2017-04-12 | 201704130597V | ND |
| 2017-07-19 | 201707200491V | ND |
| 2017-07-19 | 201707200493V | ND |
| 2017-07-19 | 201707200492V | ND |
| 2017-11-09 | 201711100051V | ND |
| 2017-11-09 | 201711100050V | ND |
| 2017-11-09 | 201711100049V | ND |
| 2018-01-22 | 201801230172V | ND |
| 2018-01-22 | 201801230171V | ND |
| 2018-01-22 | 201801230170V | ND |
| 2019-03-13 | 201903140148V | ND |
| 2019-03-13 | 201903140150V | ND |
| 2019-03-13 | 201903140149V | ND |