Mill Race Quarterly Quarterly Available Valid Hours: All: 24 x 7 $163.50* Per Quarter Request Permit * Includes taxes and fees where applicable Market Rate Monthly Available Valid Hours: All: 24 x 7 $63.50* Per Month Purchase Permit * Includes taxes and fees where applicable NC replacement Monthly Valid Hours: All: 24 x 7 $0.00* Per Month Request Permit * Includes taxes and fees where applicable