1,2,4-Trichlorobenzene
Cedarpines Park Mutual Water Company
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 1 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 1 | 0 | ND |
2017 | ND | 13 | 0 | ND |
2018 | ND | 2 | 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 |
---|---|---|
2014-06-05 | 3761-008-0700 | ND |
2016-01-19 | 3761-018-0800 | ND |
2017-02-01 | 3761-014-1245 | ND |
2017-02-01 | 3761-027-1205 | ND |
2017-02-01 | 3761-020-1200 | ND |
2017-02-01 | 3761-019-1150 | ND |
2017-02-01 | 3761-018-1255 | ND |
2017-02-01 | 3761-016-1230 | ND |
2017-02-01 | 3761-015-1226 | ND |
2017-02-01 | 3761-013-1247 | ND |
2017-02-01 | 3761-012-1224 | ND |
2017-02-01 | 3761-008-1305 | ND |
2017-07-25 | 3761-008-0800 | ND |
2017-10-16 | 3761-009-1030 | ND |
2017-10-16 | 3761-007-1012 | ND |
2018-03-27 | 3761-009-0950 | ND |
2018-03-27 | 3761-007-0945 | ND |
2019-03-19 | 3761-008-1035 | ND |
2019-09-30 | 3761-003-0900 | ND |
2019-09-30 | 3761-017-0815 | ND |