The objective of this presentation is to enhance current understanding of the Remediation System Evaluation (RSE) process and optimization tools available to site managers of pump and treat systems. RSEs aim to improve the efficiency of operation and maximize the remedy’s effectiveness by identifying ways to reduce O&M costs, shorten closure time, verify clear goals and exit strategy, and assure equipment is adequately maintained. Pump and treat systems have been operating for two decades and this experience has led to large gains in knowledge and understanding. As part of the Superfund Reform Initiative dated July 7, 2000, EPA has undertaken a program of applying this knowledge through the RSE process to fund-lead Superfund sites. The initiative hopes to utilize the many years of experience and lessons learned to reduce costs and develop clear remediation strategies for these existing systems.
The RSE process includes four steps: select the RSE team, review the project history, perform the site visit, and prepare a report of findings and recommendations. The recommendations are based on analyses to optimize/minimize costs and ensure that the system is meeting the ROD’s intent. The recommendations may include modifications to the treatment processes, follow-on optimization studies such as hydraulic/transport modeling and optimization, and optimization of the monitoring program. Once the RSE process is completed, the site manager can act upon the findings and recommendations.
An RSE was performed on the Oconomowoc Electroplating Superfund Site in Ashippum, Wisconsin. The results of this RSE are presented to exhibit the RSE process and identify some typical issues at pump and treat sites.