PRIDE Forestry Arsenic Site Assessment and Remediation
   Florida

Overview
The Pride facility produces treated lumber using a process that involves arsenic. Arsenic residuals in soils and groundwater led to Site Assessment testing of these media and preparation of remedial (cleanup) plans that were approved by the Florida Department of Environmental Protection (FDEP). Also, because stormwater issues can be inextricably linked to development or remediation work. Water & Air's multidisciplinary approach is well-suited for addressing such situations. On a project for PRIDE Enterprises, Water & Air was asked to take over a contamination remediation and stormwater project that was significantly behind an FDEP-mandated deadline. As part of the project, a substantial amount of land surface alteration was included in the soil remediation plan, stormwater runoff needed to be addressed and concept plans were prepared and permits were obtained to manage runoff.

The soil cleanup plan which has been completed included excavation of arsenic impacted soil and designing a paving plan and associated stormwater plans for a substantial portion of the facility. The groundwater cleanup plan which has been completed included installation of eight horizontal recovery wells from which contaminated groundwater is pumped and discharged to the waste water treatment plant for treatment. Per the approved RAP, contaminated groundwater at the site is recovered and piped to the Raiford waste water treatment plant (WWTP). The WWTP consists of a conventional activated sludge system followed by sand filtration and chlorination. Treated effluent from the plant is land applied to a 15 zone sprayfield adjacent to the plant. Solids are pumped to an aerobic digester for processing. Sludge from the digesters is discharged to either sludge drying beds or the dewatering system and the sludge cakes are transported to a solid waste landfill for final disposal.

Details

• Permitting
• Remedial design
• Subcontractor management
• Construction management and oversight
• Regulatory agency coordination
• Groundwater remediation system O&M

Results
Water & Air staff helped design and provided oversight in constructing a stormwater system and a groundwater remediation system according to permit conditions that reduced contaminant concentrates in surface and groundwater, successfully helping our client avoid fines by meeting FDEP deadlines.