What is the maximum allowable concentration of BTEX substances for groundwater in Pennsylvania?

The maximum allowable concentration of BTEX substances, which includes benzene, toluene, ethylbenzene, and xylenes, for groundwater in Pennsylvania is indeed established at 5 µg/L for individual compounds. This standard is significant for protecting water quality and public health, ensuring that groundwater, which can be a source of drinking water, remains safe and free from harmful contaminants.

Setting a concentration limit like this reflects the state’s regulatory framework aimed at minimizing environmental impact and preventing contamination spread. Maintaining such levels helps in preserving the integrity of groundwater resources while also complying with federal and state environmental protection laws.

Standards like these are established based on extensive research and health risk assessments that consider the potential effects of exposure to these chemicals, even at low concentrations. By adhering to these limits, Pennsylvania reinforces its commitment to protecting both the environment and public health from the risks associated with BTEX substances.