Pump Station Structure
Regional systems work together with smaller systems, which are managed by communities or local governments such as cities, counties or water control districts. Each part of this man-made system has a crucial role to play in avoiding catastrophic flooding, while preserving navigation, water supplies and environmental values.
Water management districts monitor and manage water levels in the canals, rivers, wetlands, lakes and underground aquifers that are all part of a regional system. Levees, dams, weirs, and structures of all sizes must be constantly maintained or enhanced to meet the needs of current and future residents while also protecting or enhancing environmental functions. The Motorola MOSCAD system, as used on this project, is a programmable telemetry unit that can be used to monitor and control the water level of the canal. When the canal level rises, the telemetry system can start pump(s) which transfer water from the canal into a large retention area. A radio network provides monitoring and control of the upstream and downstream levels, pump status and supporting equipment such as back up generators. Water management districts continuously monitoring the weather, so that water levels can be dropped before expected heavy rains hit, or water storage can be enhanced in times of drought, or local shortages or surpluses can be mediated by moving water within the system.
Westport Waste Water Treatment Plant
As one of the fastest growing cities in the country, Port St. Lucie has an immediate need for wastewater collection and reuse utilities. A recent expansion of the Westport WWTP treatment capacity to 4.0-mgd is one piece of a city master plan adapting to the growth. The city has also looked years ahead by having the plant’s design easily accommodate future expansion. The plant was on-line in 2004 and it was built to replace the on-site packaged plant. The plant receives its influent from one 16″ and one 24″ force main lines. The treated effluent is distributed as reuse or injected into deep wells.
The new wastewater treatment plant is designed with (5) Modicon Quantum I/O chassis networked via a Modicon remote I/O network. (2) redundant computers, (2) client nodes and a radio link to the Prineville WTP are configured with GE Fanuc IFix software for monitoring, control, alarming, historical trending, daily & monthly reports. Other control panels are provided for flow control, level control and analytical status for PH, turbidity, and chlorine residual.
- PID control of Surge Return Pump VFDs
- Aerator of VFD control
- Control of Injection Well Pumps
- Pressure Control of Plant Service Water
- PID control of RAS/WAS Pump VFDs
Reverse Osmosis Water Treatment Plant
The Highland Beach RO WTP is a 2.25-mgd reverse osmosis brackish groundwater treatment plant. The designed ultimate capacity for this plant is 3.0 mgd. The plant was commissioned in October of 2004 and it was built to replace the now decommissioned Mainland WTP. The plant receives its water supply from two new groundwater supply wells that are 1,010 to 1,200 ft deep tapping into the Floridan aquifer.
The new R.O. treatment plant was designed with (10) Allen Bradley Control Logix PLC’s networked via a dual ring redundant fiber optic control network. (2) redundant computers and one client node was configured with GE Fanuc IFix software for monitoring / control, alarming, historical trending, daily & monthly reports. Other control panels are provided for chemical unloading, chemical transfer and analytical status for various PH, conductivity, temperature and chlorine residual.
- PID control of raw water well VFD’S
- Chemical system pacing
- PID control of membrane feed VFD’S
- High service pumping
- 3 R.O. trains