Description
The City of Salem is seeking bids for the supply of finish filter sand for the Geren Island Water Treatment Plant. The sand must meet specific physical characteristics and size requirements, and the supplier must demonstrate the capability to produce the sand in the required quantity. The contract will be for a period of 12 months, with an estimated annual quantity of 7,500 cubic yards. The supplier will be responsible for producing and delivering the sand, and the City will conduct regular inspections and testing to ensure compliance with the specifications.
• The sand must be of predominately siliceous material, with a specific gravity of at least 2.6 and an acid solubility of less than 5%.
• The effective size (D10) must be between 0.27 and 0.33 mm, and the uniformity coefficient must be less than 2.5.
• The amount of fines must not exceed 0.3% by weight passing a U.S. No. 200 mesh.
• The supplier must provide a 5 cubic yard test run of finish filter sand, which will be tested by an independent laboratory to ensure compliance with the specifications.
• The supplier must demonstrate the capability to produce the sand in the required quantity, and must provide a sample of the sand for testing prior to delivery.