1,2,4-Trichlorobenzene
Craven County 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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 5 | 0 | ND |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 7 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 8 | 0 | ND |
| 2019 | ND | 8 | 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 |
|---|---|---|
| 2014-09-11 | 7981-091114-W02V | ND |
| 2014-09-11 | 7981-091114-W01V | ND |
| 2014-09-11 | 7981-091114-W05V | ND |
| 2014-09-11 | 7981-091114-W03V | ND |
| 2014-09-11 | 7981-091114-W04V | ND |
| 2015-09-17 | ND | |
| 2015-09-17 | ND | |
| 2015-09-17 | ND | |
| 2015-09-17 | ND | |
| 2015-09-17 | ND | |
| 2015-10-28 | ND | |
| 2016-01-26 | 7981-012616-W01V | ND |
| 2016-09-23 | 7981-092316-W01V | ND |
| 2016-09-23 | 7981-092316-W02V | ND |
| 2016-09-23 | 7981-092316-W03V | ND |
| 2016-09-23 | 7981-092316-W04V | ND |
| 2016-09-23 | 7981-092316-W05V | ND |
| 2016-11-07 | 7981-110716-W01V | ND |
| 2017-01-17 | 7981-011717-W01V | ND |
| 2017-05-24 | 7981-052417-W01V | ND |
| 2017-09-26 | 7981-092617-W01V | ND |
| 2017-11-07 | 7981-110717-W01V | ND |
| 2017-12-12 | 7981-121217-EP1V | ND |
| 2018-01-24 | 7981-012418-W01V | ND |
| 2018-02-28 | 7981-022818-EP1V | ND |
| 2018-04-25 | 7981-042518-W01V | ND |
| 2018-06-19 | 7981-061918-EP1V | ND |
| 2018-07-19 | 7981-071918-W01V | ND |
| 2018-08-15 | 7981-081518-EP1V | ND |
| 2018-10-18 | 7981-101818-W01V | ND |
| 2018-11-27 | 7981-112718-EP1V | ND |
| 2019-01-30 | 7981-013019-W01V | ND |
| 2019-04-16 | 7981-041619-W01V | ND |
| 2019-07-11 | 7981-071119-EP1V | ND |
| 2019-12-11 | 7981-121119-W02V | ND |
| 2019-12-11 | 7981-121119-W03V | ND |
| 2019-12-11 | 7981-121119-W04V | ND |
| 2019-12-11 | 7981-121119-W05V | ND |
| 2019-12-11 | 7981-121119-EP1V | ND |