Site work and new construction of a water / sewer project in San Diego, California. Completed plans call for site work for a water / sewer project; and for the construction of a water / sewer project.

The Paradise Mesa Standpipe (PMSP) is a grade, welded steel tank constructed in 1980. Located in Council District 4 in a residential area near 1513 Stratton Court in San Diego. The reservoir has a 60 ft diameter and an overall height to 128.75 ft. The tank shell has fifteen steel plate courses, each 8 ft tall with thicknesses varying from 0.8 to -.25 inches. The existing standpipe has multiple issues such as water quality, interior corrosion, and extreme pressure spikes. The standpipe is experiencing significant corrosion, and the interior lining is badly degraded, which results in poor water quality. The PMSP is seismically deficient, as the concrete ring wall would be incapable of holding the standpipe down during a significant seismic event. The PMSP also has dead storage at the bottom because it cannot provide adequate pressure when drained. The lowest level the PMSP can be drained to is 42 ft (Elevation 532 ft) before customers at the highest elevation 486 ft will experience service pressure below 40 psi. The existing PMSP is proposed to be replaced by an elevated storage tank which provides better mixing, less derivation in pressure, and better ventilation. The proposed new storage tank type will be identified in the Basis of Design Report and a detailed design of the preferred tank will follow. A support structure should be used for equipment storage. An external mounting bracket should be installed on the concrete support structure of the new tank so that SCADA antennas can be installed and an external mounting bracket should be used to prevent the tank from being damaged by installing or removing any antennas. Estimated Bid Value $1,400,000 - $1,600,000 *The value for this project is based on a financial range. The value is listed as the highest possible cost from the range provided by a stakeholder or official project document.