1,2,4-Trichlorobenzene
Mcconnellsburg Borough Municipal Authority
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 | 4 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 10 | 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 |
|---|---|---|
| 2014-08-28 | 2026074002 | ND |
| 2014-08-28 | 2026074003 | ND |
| 2014-08-28 | 2026074004 | ND |
| 2014-08-28 | 2026074001 | ND |
| 2015-11-05 | 13564694 | ND |
| 2015-11-05 | 13564715 | ND |
| 2015-11-05 | 13564736 | ND |
| 2016-04-21 | 14167195 | ND |
| 2016-04-21 | 14167153 | ND |
| 2016-04-21 | 14167174 | ND |
| 2016-11-08 | 15286017 | ND |
| 2017-04-04 | 16004954 | ND |
| 2017-04-18 | 16005141 | ND |
| 2017-04-18 | 16163025 | ND |
| 2017-04-18 | 16633204 | ND |
| 2017-05-03 | 16163083 | ND |
| 2017-05-03 | 16633147 | ND |
| 2017-05-17 | 16163263 | ND |
| 2017-09-20 | 16940888 | ND |
| 2017-09-20 | 16790833 | ND |
| 2017-11-08 | 17080585 | ND |
| 2018-03-28 | (102) HORTON | ND |
| 2018-10-17 | (101) RESERV | ND |
| 2018-10-17 | (104) SECRES | ND |
| 2018-10-17 | (105) SECRES | ND |
| 2019-07-17 | (101) RESERV | ND |
| 2019-07-17 | (102) HORTON | ND |
| 2019-07-17 | (104) SECRES | ND |
| 2019-07-17 | (105) SECRES | ND |