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CITY OF SANTA ANA <br /> SPECIFICATIONS <br /> PROJECT NO.: 25-6030 <br /> TRAFFIC SIGNAL INSTALLATION AT SEGERSTROM AVENUE AND ROSEWOOD <br /> AVENUE <br /> • For gravity bypasses, the plans shall include locations of temporary flow-through <br /> plugs, sewer plugs and bypass discharge piping. <br /> • A description of how the bypass system will be controlled and operated. Describe <br /> the method of control, the procedure and time requirements for switching to the <br /> standby equipment and alarm notification. <br /> • Capacities of pumps, prime movers and standby equipment. Design calculations <br /> proving adequacy of the bypass system and selected equipment. <br /> • Standby power source for bypass pumping. <br /> • Staffing plan for maintaining equipment for 24-hour continuous,reliable operation <br /> on weekdays and/or weekend days. <br /> • Noise and Odor Control Plan. <br /> • Plan showing the existing sewer line and the proposed points of flow interruption <br /> and/or flow diversion. <br /> • Construction time schedule showing anticipated times of flow interruption and/or <br /> flow diversion. <br /> • Spill Contingency Plan detailing precautions to be implemented to prevent sewage <br /> spills including specific responses and control measures to follow during an <br /> overflow resulting from breakage or blockage and maintenance and inspection <br /> schedules to detect potential problems to mitigate the potential release resulting <br /> from overflows, bypass pipe ruptures, and blockages, <br /> The Contractor shall provide temporary pumps, conduits, and other equipment to bypass <br /> the sewer flow. Engine-driven pumps shall be equipped with mufflers and/or shall be <br /> enclosed to keep the noise level within the City's Noise Ordinance. Pumps and bypass <br /> lines shall be of adequate capacity and size to handle the flows. <br /> Bypass duty and standby pumps shall be designed for raw sewage applications,resistant to <br /> ragging, and capable of passing a 3-inch solid sphere. Pumps shall be self-priming with <br /> suction lift sufficient to avoid sewer surcharge. The self-priming system shall allow the <br /> pump to start dry and run dry without causing damage. Pumps may be equipped with a <br /> vacuum assisted self-priming device. Any orifice designed to discharge air during pump <br /> priming shall be connected to a portable activated carbon scrubber. All engines shall be <br /> critically silenced for sound control and regardless of noise level, soundproofmg shield not <br /> less than eight feet high shall be provided around each engine to absorb noise. 100% <br /> standby pumping shall be provided. Standby pump shall be sized to match the duty pump. <br /> Standby pumping equipment shall be at the site continuously during bypassing to provide <br /> standby pumping capacity. <br /> 109 <br />