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Water Tank Replacement Projects

Water Tank

Have you ever wondered what that huge tank up on the hill was for?  It is a water tank reservoir storing water for the community.  Water tanks can be above or below the ground and it is where water is treated and then stored and then gravity feed and/or pumped into homes and businesses.  Water tanks are also used to maintain emergency storage supply during power outages, peak demands, and fire flow.  While TUD carefully maintains each water tank, most tanks only last 20-40 years.  Some tanks can be rehabilitated or replaced, In some cases, they can be consolidated with other tanks.

Zone 4 Tank
The Zone 4 tank is located in the Sugar Pine area and is 35 years old.  The tank has reached the end of its useful life and needs to be replaced. The Zone 3 tank, located at a lower elevation than the zone 4 tank has been removed due to a complete collapse and additional water storage is needed in the area. A new Zone 4 tank will be used to replace both the existing Zone 4 tank and the former Zone 3 tank.

Picture of top of zone 4 Tank

Picture of bottom of zone 4 Tank

This project will construct a new 400,000-gallon welded steel tank with exterior roof rafters, forced air ventilation, cathodic protection to mediate interior corrosion, stairway access to the tank roof, telemetry monitoring equipment, piping, and fittings. A new hydro pneumatic 12’x12’ pump station building will be constructed as well.

Cedar Ridge Upper Tanks
The tanks have reached the end of their useful lives and needs to be replaced. Constructing larger tanks will make maintenance operations in the area more manageable and will provide better water system resiliency. The existing lot is not fenced causing a lack of security to the community’s water supply.

This project will construct a new 250,000-gallon welded steel tank with exterior roof rafters, forced air ventilation, cathodic protection to mediate interior corrosion, stairway access to the tank roof, telemetry monitoring equipment, piping, and fittings.  Lot grading will take place to accommodate the new tank and security fencing will be installed. The old tank and pump station will be demolished.

Mono Village Tank Consolidation
The Mono Village tanks are a collection of (3) bolted steel tanks with capacities of 210k, 210k, and 126k gal.  The age of the tanks are unknown, but development in the area dates back to the 1960s. All three tanks provide storage for the Mono Village area. Recent inspections have revealed that tanks A and C are structurally compromised making future inspections unsafe. Inspections also reveal that Tank B has holes in the roof, excessive corrosion, and is structurally unsound. All 3 tanks have reached the end of their useful lives and need to be replaced. The need for water storage at Mono Village is dependent on other tank projects in the area. A larger Sommette Tank can absorb the storage of all the Mono Village tanks. If a tank is constructed as part of a proposed development on Standard Road, that tank could absorb the storage of all the Mono Village Tanks as well.  This project involves demolishing Tank A and B and replace them with one 210,000 gal bolted steel tank. Tank C should remain full during construction to provide storage for the area. Tank C will be demolished in a future project. At that time, the District will decide if there is a need to construct an additional tank at this location.

 

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