1,2,4-Trichlorobenzene
Amicks Ferry Water System
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 | 6 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-02-10 | AD35454 | ND |
| 2014-02-10 | AD35453 | ND |
| 2014-04-23 | AD38773 | ND |
| 2014-05-29 | AD40494 | ND |
| 2014-08-12 | AD43861 | ND |
| 2014-10-14 | AD46716 | ND |
| 2015-02-12 | AD51513 | ND |
| 2015-05-14 | AD55496 | ND |
| 2015-08-25 | AD59968 | ND |
| 2015-10-20 | AD63084 | ND |
| 2016-02-04 | AD70189 | ND |
| 2016-06-13 | AD77137 | ND |
| 2016-08-23 | AD81172 | ND |
| 2016-10-17 | AD83981 | ND |
| 2017-01-24 | AD88664 | ND |
| 2017-01-24 | AD88665 | ND |
| 2017-01-24 | AD88668 | ND |
| 2017-01-24 | AD88667 | ND |
| 2017-01-24 | AD88666 | ND |
| 2017-05-02 | AD93496 | ND |
| 2017-07-20 | AD97808 | ND |
| 2017-10-05 | AE01543 | ND |