Which maximum TPH-Dx concentration level is allowed for Generic Remedy 2?

For Generic Remedy 2, the maximum TPH-Dx (Total Petroleum Hydrocarbons - Diesel) concentration level allowed is 10,000 ppm. This value is established to ensure that the remediation process is effective while managing safety and environmental concerns associated with petroleum hydrocarbons.

By allowing a higher concentration level like 10,000 ppm, Generic Remedy 2 can accommodate sites with significant contamination levels that still present a manageable risk during treatment. This threshold is based on research into the impacts of TPH-Dx on human health and the environment, allowing agencies to balance the need for remediation with feasible treatment methods.

Higher thresholds, such as 10,000 ppm, indicate that the remedy can begin under more heavily contaminated conditions, providing flexibility in addressing various site-specific circumstances. This is significant for achieving effective remediation without prematurely halting operations due to lower concentration limits.