In Palm Beach County, Fla., innovative ideas for storm water management systems surfaced in the early '90s, when the Northern Palm Beach County Improvement District (Northern) faced growth and development within its jurisdiction. Managers of the special district had to come up with a way to make their storm water systems more efficient without increasing staff or budget.
The Florida Legislature created Northern as an independent special district in 1959 in order to provide water management and infrastructure services for properties within its current 128 square-mile jurisdiction. Northern's goal is to provide innovative design, management and oversight of water resource management systems.
Northern provides a wide range of services to its constituents, including:
Growth and the Development of the Telemetry System
"We were planning for the future in terms of our needs for the area, and were looking at new ways of managing our systems," said O'Neal Bardin Jr., executive director of Northern. "At the time, there weren't effective storm water systems available, so we looked for alternatives."
During the research process, Northern met with several different entities, including the South Florida Water Management District (SFWMD) and other municipal utility operations. There was one common denominator -- the use of telemetry systems for remotely monitoring activity. However, the technology wasn't being used for storm water management. It was being utilized for wastewater. "We were the first to ask the manufacturer to design a telemetry system to monitor storm water," Bardin said. The manufacturer was Data Flow Systems based in Melbourne, Fla.
The system Northern began with initially cost approximately $50,000. The Tac II Telemetry System was placed in one specific unit of development and consisted of four remote telemetry units and one central telemetry unit. Telemetry works by measuring and communicating data through wireless radio signals from remote sources to receiving stations. Northern's system runs through 59 wireless radio signals. It uses programmable logic controllers for monitoring telemetry stations throughout Northern's jurisdiction, which covers 128 square miles of Palm Beach County. Licensing is required through the Federal Communications Commission. The system can monitor a total of 180 different points within a single pump station. A point can be a proximity switch for a door, for example.
With the advent of the telemetry system, Northern had expanded its capacity and in doing so, greatly decreased its response time to any situation requiring attention, which could be anything from blockage in a drainage system to rising water levels due to a rainstorm.
An operations staff of six people can handle all aspects of monitoring, even from their homes. "Especially during hurricane season, it is helpful to be able to monitor our systems from home," said Bobby Polk, operations manager.
The Hyper Supervisory Control and Data Acquisition (SCADA) Server Telemetry System has improved the efficiency of Northern's storm water management systems in the following ways:
Prior to a storm, the operations team can begin monitoring water elevations to determine whether there is a need to lower or "draw down" the levels to prevent flooding.
The Operations Pilot Program
As Northern mastered the telemetry system, its reputation grew as a water control district that could manage