Florida County Awards 30-Mile Sewer Assessment to Electro Scan

Electro Scan was chosen by the Hillsborough County, Public Utilities Department, Florida, to support its Inflow/Infiltration study for the Dale Mabry Wastewater Collection Basin, the company announced.

(source: Electro Scan)

The assessment project includes the evaluation of 155,000 linear feet (LF) or nearly 30-miles of sewer mains, ranging from 6 to 18 inches in diameter, located in 14 separate sub-basins within the larger Dale Mabry collection network.

California-based Electro Scan said the project will be conducted by its Field Services team using the company’s Focused Electrode Leak Location (FELL) technology, in collaboration with the County’s engineering consultant.

Hillsborough County is the fourth largest water & wastewater utility in the State of Florida, part of EPA Region 4, with nearly 175,000 retail customer connections serving a 286 square mile area.

The County's entire wastewater collection system includes over 1,400 miles of gravity sewers and 788 lift stations, which transports & treats over 42 million gallons per day at 8 advanced water reclamation facilities.

The Dale Mabry Wastewater Collection Basin itself consists of over 900,000 LF, representing 12% of the County's total gravity sewer mains.

The County and its engineering consultant reviewed available desktop records to select the 155,000 LF of sewer mains to be FELL inspected. Key data sources included flow monitoring results, pipe installation dates, pipe construction materials, and previous legacy inspection methods.

In addition to precisely locating each leak's location, within 0.4 inches or 1cm, Electro Scan's FELL technology also quantifies each leak's defect flow rate expressed in gallons per minute for use in rehabilitation prioritization and selection, the company said.


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