1. Design of two ANSI/AWWA D103 coated bolted carbon steel tanks each with an operating capacity of 0.5 MG. Tank interior and exterior surfaces shall be glass fused to steel per D103-9 12.4 with a clear span aluminum cover. The glass encapsulation of the steel panels shall be on all sheet edges, the tank shall be designed not to require any external belly straps. The cathodic Protection system shall include sacrificial anodes. Tank mixing systems shall be provided within the tank on common feed-fill lines to maximize circulation and water age. 2. Each tank minimum and maximum water elevations shall match to permit single or combined tank operation. 3. Both tanks shall be designed to comply with California Department of Drinking Water requirements, aka AWWA recommendations, concerning potential impact from a design seismic event including tank movement, water movement inside the tanks, and horizontal and vertical movement of inlet and outlet piping. 4. Tank foundations shall consist of concrete ring wall with an embedded wall starter sheet and concrete tank floor. 2 5. Replacement tanks and associated improvements shall be designed to utilize the existing pump station located at the site. 6. The design improvement shall maintain operation of the existing Sawmill Tank during construction. 7. Demolition of existing tank 3.0 MG performed upon completion and operation of the two new water storge tanks.
