Purchase and Installation of High-Density Linear Polyethylene (HDLPE) Bulk Storage Tanks

This section covers the supply and installation of three upright, double-wall, flat bottom high density linear polyethylene resin (e.g., HDLPE) 2,500-gallon bulk storage tank for storage of sodium hypochlorite. Two of these tanks will be delivered and installed at the Wastewater Treatment Plant site at 5355 Pan American Blvd., while the third tank will be delivered and installed at the Southwest Booster Station at 8060 S Tamiami Trail. The assembly of the tanks will consist of one cylindrical inner primary tank and one blended form octagonal outer secondary tank. The tank shall be a molded in one-piece seamless construction by rotational molding. The tank shall be designed for above-ground, vertical installation and capable of containing chemicals at atmospheric pressure. The assembly shall be designed to prevent rainwater from entering the containment tank. The design shall allow direct primary tank base retention for up to seismic zone 4 conditions per UBC code requirements. The containment tank shall be designed to hold a minimum of 115% of the normal fill capacity of the primary tank, for transfer of chemicals. The disposal of the existing tank that is to be replaced is also required.

Division 02 -	Existing Conditions, Subsurface Investigation.
Division 03 -	Concrete, Concrete Reinforcing, Cast-in-Place Concrete.
Division 05 -	Metals, Structural Metal Framing, Metal Decking.
Division 23 -	Heating, Ventilating, and Air Conditioning (HVAC), Facility Fuel Piping, Facility Fuel-Storage Tanks.
Division 31 -	Earthwork, Clearing and Grubbing, Grading.
Division 32 -	Exterior Improvements, Fences and Gates.
Division 33 -	Utilities, Storm Drainage Utilities.