Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Quarryville Borough

NOTE: Quarryville Borough purchases water from Pennsylvania American Coatesville which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Pennsylvania American Coatesville.

1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
2022ND40ND
2023ND40ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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

NOTE: Quarryville Borough purchases water from Pennsylvania American Coatesville which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Pennsylvania American Coatesville.

Date Lab ID Result
2018-01-0938173701ND
2019-02-0643221201ND
2020-01-2121495916.00ND
2021-01-0723705339.00ND
2022-01-0625935041.00ND
2023-01-0328165663.00ND