1,2,4-Trichlorobenzene
Twin Maples Nursing Home
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 | 2 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-09-16 | BH14175VOC1 | ND |
| 2015-08-24 | BJ79938VOC1 | ND |
| 2015-12-11 | BK35928VOC1 | ND |
| 2016-01-19 | BK54393VOC1 | ND |
| 2016-04-22 | BN18473VOC1 | ND |
| 2016-07-07 | BN68661VOC1 | ND |
| 2016-10-14 | BV50752VOC1 | ND |
| 2017-01-09 | BX17960VOC1 | ND |
| 2017-04-03 | BX97632VOC1 | ND |
| 2017-07-13 | BY58616VOC1 | ND |
| 2017-10-09 | BZ17737VOC1 | ND |
| 2018-01-08 | BZ69305VOC1 | ND |
| 2018-04-03 | CA12885VOC1 | ND |
| 2018-07-11 | CA87192VOC1 | ND |
| 2018-10-01 | CB61945 | ND |
| 2019-02-01 | CC39646 | ND |
| 2019-04-01 | CC78528 | ND |
| 2019-07-02 | CD49289 | ND |
| 2019-10-14 | CE40397 | ND |