The City of Columbia, MO issued a request for quotation for copper and PVC pipe. The contract was awarded to Riback Supply, Winnelson Company, Ferguson Enterprises, and Columbia Winnelson. The contract includes the supply of 1" copper pipe, 16" ductile tyton pipe, 16" PVC water pipe, and 6" PVC pipe. The vendors submitted prices for each item, and the lowest prices were awarded the contract. The contract document provides a tabulation of bids, which lists the prices submitted by each vendor for each item.