R. Marie Coleman, Hazardous Substance & Waste Management Research, Inc., 2976 Wellington Circle West, Tallahassee, FL, 32309, Tel: 850-681-6894, Fax: 850-906-9777, Email: staff@hswmr.com.
Vickie P. Cavey, JEA, 21 West Church Street, Jacksonville, FL, 32202, Tel: 904-665-6383, Fax: 904-665-7386, Email: cavevp@jea.com.  
Douglas J. Covert, Hazardous Substance & Waste Management Research, Inc., 2976 Wellington Circle West, Tallahassee, FL, 32309, Tel: 850-681-6894, Fax: 850-906-9777, Email: staff@hswmr.com.
Susan N. Hughes, JEA, 21 West Church Street, Jacksonville, FL, 32202, Tel: 904-665-6248, Fax: 904-665-7950, Email: hughsn@jea.com.  
Michael Marcus, S & ME, 155 Tradd Street, Spartanburg, SC, 29301, Tel: 864-574-2360, Fax: 864-576-8730, Email: mmarcus@smeinc.com. 
Matt McClure, JEA, 21 West Church Street, Jacksonville, FL, 32202, Tel: 904-665-6253, Fax: 904-665-7376, Email: mccimr@jea.com.
Christopher M. Teaf, Center for Biomedical & Toxicological Research, Florida State University, 2035 E. Dirac Dr., Tallahassee, FL, 32310, Tel: 850-644-3453, Fax: 850-574-6704, Email: cteaf@mailer.fsu.edu.

The State of Florida encourages the recycling and reuse of a variety of materials, assuming that it can be accomplished in a manner that protects public health and the environment.  A detailed technical and field evaluation was conducted on behalf of and in cooperation with a major municipal utility, to investigate the reuse potential of large volume byproducts from an electrical generating station which employs circulating fluidized bed (CFB) technology for combustion of coal and petcoke as fuel.  In cooperation with FDEP, a 12 month field demonstration was conducted to assess stability, leachability, and runoff from compacted byproduct (“EZBase”).  Pads (12 by 50 feet) were constructed of the compacted EZBase material, designed to simulate proposed reuse scenarios.  Shallow groundwater monitoring wells were installed immediately adjacent to the pads and were monitored monthly for a variety of constituents, in conjunction with surface water runoff samples collected during rainfall events, and soil samples adjacent to the EZBase pad.  Vanadium emerged as a substance of interest in both surface runoff and in soil, but vanadium was not detected in nearby groundwater wells.  The groundwater, soil and stormwater runoff data clearly demonstrated that the EZBase byproduct does not pose hazards to the environment, and demonstrated that the environmental fate of analytes in the byproduct is very similar to the other commonly used products in similar applications (e.g., concrete, limerock, asphalt).  A variety of potential risk-based reuse scenarios were proposed to the state environmental regulatory agency on the basis of human health and ecological considerations, including soil stabilization in environmental remediation applications, road bed and road surface projects, commercial/industrial site paving projects, and road right-of-way application.  Toxicological, risk and engineering questions were satisfactorily addressed and approvals were granted for reuse of the CFB byproduct on a broad scale.  

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