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CHESTER RIVER HOSPITAL CENTER PILOT TEST EVALUATION REPORT AND PROPOSED 2015 ACTION PLAN
Maryland Department of the Environment (MDE), 128 pp, 2015

The Chester River Hospital Center (CRHC) Technical Team implemented a pilot study in August 2014 to demonstrate the viability and effectiveness of the Ivey-sol® surfactant flushing push-pull process to safely liberate sorbed residual hydrocarbons from soils. CRHC had used pump and treat (P&T) for over 20 years to remove liquid petroleum hydrocarbons (free product) and remediate the groundwater. Based on the evidence of monitoring results, the project moved into a closure status/process during 2012/2013; however, subsequent monitoring data led to the restart of P&T, and investigations revealed that a seasonal high water table contacted sorbed residual hydrocarbons in a smear zone in soils near the original spill. In July 2014, MDE approved the proposed Ivey-sol® pilot study under a set of specific conditions. The push-pull flushing process was completed successfully, and CRHC proposed its use at full scale to complete the cleanup. [MDE approved the revised action plan (with modifications) in July 2015.] https://clu-in.org/download/techfocus/isf/Ivey-Sol-Pilot-Test-Eval-2015.pdf
Follow up on this project in reports on the MDE Oil Control Program Remediation Sites page at http://www.mde.state.md.us/programs/Land/OilControl/RemediationSites/Pages/Programs/LandPrograms/Oil_Control/RemediationSites/index.aspx.



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