Attachment - PermeOx 4ft Percentage.pdf

This is a conceptual distribution diagram for an Underground Storage Tank (UST) remediation project in South Carolina (Contract ID: UST -- 11946), specifically illustrating oxygen release compound (ORC) placement methodology. The document depicts a 4-foot vertical treatment interval with ORC distribution percentages designed to optimize oxygen availability across the contaminated zone. The treatment approach segments the vertical interval into seven distinct zones with varying oxygen concentrations: 13%, 8%, 20%, 8%, 18%, 13%, and 20%, representing a stratified distribution strategy to address subsurface contamination at different depths.

The PermeOx product application shown in this conceptual model indicates a phased or staged oxygen release approach intended to maintain consistent remediation effectiveness throughout the treatment interval. This distribution methodology suggests the project involves in-situ chemical oxidation (CXO) or similar remedial action technology to address petroleum or other contaminants associated with the underground storage tank site. The varying percentages reflect engineering calculations to account for oxygen demand variations and contaminant concentrations at different vertical positions within the target treatment zone.