Specifications include, but are not limited to: 1. Replace the sewer piping shown in the clouded regions of plan sheets P2-1W, P2-2W, and P2-4W with SCH 80 PVC (ABS for vent piping connections) with the sizes shown. Connect in the existing branches where noted. (Base Bid) 2. Install PEX tubing (or Schedule 40 CPVC where noted) throughout the facility as shown on the plans. Provide stub outs for every fixture shown and cap them for future connection. (Add Alternate #1) 3. Provide isolation valves where shown on the drawings and tag them with brass tags per the schedule shown on this sheet. (Add Alternate #1) 4. Pressure test and disinfect all tubing per the specifications. (Add Alternate #1) 5. Tie in the new hot water piping to the existing water heaters in parallel with the existing copper piping. (Add Alternate #1) 6. Tie in the cold water supply piping to the existing pressure regulating valve station in parallel with the existing copper piping. (Add Alternate #1) 7. Replace the domestic hot water recirculation pumps with new pumps as shown in the drawings. (Add Alternate #1) .