NCDPW Cedar Creek Water Pollution Control Plant Influent Pumping System Improvements
The Nassau County Department of Public Works owns and operates the Cedar Creek Water Pollution Control Plant—a 72 MGD sewage treatment plant that was placed into operation in 1972 and services portions of Nassau County, New York. Main components of the plant’s influent pumping system were found to be in poor or inoperable condition and were assigned high risk ratings, requiring that they either be repaired or replaced.
D&B was retained to prepare a Technical Design Report; develop design detailed contract drawings; provide construction inspection services; prepare O&M Manuals for each site; and oversee the facility’s start-up, staffing and training. The scope of work includes the replacement of main sewage pump isolation valves, process valves and piping; replacement of raw sewage pumps with dry-pit submersible type pumps and motors utilizing Variable Frequency Drives (VFDs); and the installation and integration of level instruments, sensors, drives and other instruments into a modern Programmable Logic Control (PLC) system with local and remote manual override and redundant wet well level control.
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