Pinellas County’s North County Wastewater Collection System conveys wastewater to the W.E. Dunn Water Reclamation Facility (WEDWRF). The system consists of approximately 340 miles of gravity sewers, 85 miles of force mains, and 152 pump stations. The wastewater collection system transports an average of 6.5 million gallons of wastewater daily.
To maintain a resilient and sustainable level of service for its customers, Pinellas County hired McKim & Creed to perform a North County Flow Monitoring Study by evaluating its wastewater, determining the flow characteristics and prioritizing areas in the collection systems based on inflow and infiltration (I&I) severity. The County used the findings and recommendations for calibrating the collection system hydraulic model and to implement operation, maintenance, and capital improvements projects.
To complete the evaluation, McKim & Creed’s team collected data throughout a five-month timeframe using a combination of 40 open channel flow meters and pump run times; plus 10 rain gauges and 10 groundwater monitoring wells throughout the service area. The data collected will be used to prepare a Sewer Flow Monitoring Study Report which will document the I&I characterization and sewer zone prioritization analysis along with recommendations for further investigation and system improvements within each sewer zone and the North County Wastewater Collection System as a whole.