1 - SPECIFICATIONS AND REQUIREMENTS 1.1. Background 1.1.1. Lime Dosers are extremely cost effective and efficient at treating Acid Mine Drainage (AMD). Dosers are considered “active treatment” which requires continual operation and maintenance in order to sustain the desired level of treatment. Dosers must be refilled with lime (calcium oxide) approximately every three – four months (variable based on treatment needs at each site). The lime is ordered, transported to the site in a closed tanker truck where it is loaded into the doser silo pneumatically through a 4” inlet pipe with fitting. 1.2. Specifications 1.2.1. Definitions: 1.2.1.1. Pebble Lime - The reagent must have available calcium oxide content greater than or equal to 90 percent, a particle size distribution between 1/4 inch and 1/8 inches, and less than 10% of material passing a 10 mesh. 1.2.1.2. Ground Lime - The reagent must have available calcium oxide content greater than or equal to 90 percent and a particle size distribution between 1/4 inch and 0 inches. 1.2.2. Product Standards 1.2.2.1. All products must conform to ASTM C1529 Standard Specification for Quicklime, Hydrated Lime, and Limestone for Environmental Uses. 1.2.3. Delivery 1.2.3.1. The Contractor must deliver, as indicated, within five business days of request. 1.2.3.2. The Contractor is responsible to provide all necessary equipment and personnel to offload product. 1.2.3.3. The minimum order issued in reference to this contract must be in full truckload quantities. 1.2.3.4. The Contractor must provide certified scale tickets to verify total pounds delivered.
