DA, Tulsa District, Corps of Engineers, P.O. Box 61, Tulsa, OK 74121-0061

Z -- CONSTRUCTION & DEMOLITION DEBRIS LANDFILL: RUN-ON/RUN-OFF CONTROL, FORT SILL, OKLAHOMA SOL DACA56-97-B-0015 DUE 022797 POC Diane Cianci, Contract Specialist, 918/669-7270 This project consists of construction of a surface impoundment "Pond" of dimensions 224' X 196' X 9' at finished grade. The pond will be lined along the bottom and inside slopes with one foot of clay compacted to 1 X 10-7 cm/sec. The one foot of clay will be overlain by a Geosynthetic Clay Liner (GCL) and the GCL overlain by a 60 mil High Density Polyethylene (HDPE) Liner. Approximately 460 C.Y. of 12" RipRap and Bedding will be placed. Approximately 34,875 square feet of sod will be placed in and around pond area. Approximately 3195 square yards of Hydro-Mulch will be required around the perimeter of the borrow source area that is disturbed. The project will also consist of constructing approximately 5775 linear feet of compacted random fill as diversion berms three foot high above existing grade with 3:1 slopes in addition to constructing a channel with approximate dimension of 10' X 465'. Depth of channel will vary from 2' deep at entrance to 10' deep at exit which is into a borrow source area. Slopes no greater than 5% will be maintained along channel length. The site is within a "Buffer Zone" which separates the landfill area from the East Range Impact Zone at Fort Sill. The contractor will be required to perform a Unexploded Ordnance (UXO) Survey of the area within the construction limits to the contractor's satisfaction to ensure no UXO exists. If UXO is found by the Contractor, construction will be suspended until the area has been cleared by Army UXO personnel. Estimated cost range of this project is $250,000 to $500,000. An advanced non-refundable fee of $26.00 (full size) is required for each set of specifications. Make check payable to F&A Officer, USAED, Tulsa and mail to the attention of Contracting Division. Payment must be received prior to issuance of plans and specifications. Plans and specifications will be available on or about January 28, 1997. No phone calls to order please. All orders will be mailed via first class mail. Request for special handling (Fed-X, etc.) will not be honored. (0014)

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