Proceedings: Ninth International Ash Use Symposium - Vol. 2: Stabilization and Aquatic Uses

Houston Lighting & Power Company (HUP) , Texas A&M University at Galveston and JTM Industries, Inc. initiated research in May 1988 and coordinated it with state and federal resource protection agencies to investigate the use of certain HL&P coal combustion by-products (CCBP) for enhancing and creating oyster reefs .* Initial research involved determining an optimum mix design based on compressive . strength, leaching potential, biofouling success, and cost. CCBP material was found to exceed compressive strength criterion (300 psi @14 days) and was not a significant leaching source. Candidate mix designs and oyster shell controls were exposed to hatchery-reared oyster larvae to determine spat setability and * University of Delaware, United States Patent To. 4,844,015 July 4, 1989 lSeniorEvironmenta1 Specialist, Houston Lighting & Power Company, P.O. Box 1700, Houston, Texas 77251 2Professor, Department of Marine Biology, Texas A&M University at Galveston, P.O. Box 1675, Galveston, Texas 77553 3Associate Professor, Department of Marine Biology, Texas A&M University at Galveston, P.O. Box 1675, Galveston, Texas 77553