Our Projects

Some of our Projects and Information

PGW Downstream Project

With the arrival of the new Pittsburgh Glass Works, LLC (PGW) facility in Elkin, it was realized that the existing sewer system (including two pump stations) between PGW Drive and the WWTP was inadequate to reliably transport current and expected volumes of wastewater on a continuous basis. This inadequacy is due to insufficient hydraulic capacity of pipes and pumps, lack of a standby generator, and unreliable equipment such as declining pumps and valves. Additionally, available pipe and pump capacity is being used up due to I/I (infiltration and inflow) upstream of the main outfall and Dutchman Creek #2 pump station. This project consists of several elements all designed to improve the integrity, reliability, and hydraulic capacity of the Sewer Authority’s collection system between PGW Drive and the wastewater treatment plant. The project includes the improvement of two (2) pumping stations, extending an existing 8” force main over 3,000 LF, the replacement of approximately 4,700 LF of 12” gravity sewer with 18” gravity sewer (the Dutchman Creek outfall), and the repair of various isolated defects in the sewers tributary to the outfall to eliminate I/I. 

SW Elkin Collection System Project 

The SW Elkin Collection System Improvements project is a continuation of a Sanitary Sewer Evaluation Study (SSES) completed for the southwest Elkin collection system to identify sources
of I/I (infiltration and inflow). Manhole and smoke test inspections have been completed and sources of inflow identified. CCTV inspections were completed to identify significant sources of infiltration and defective clay pipes. The project will repair the identified I/I sources.
The project includes the rehabilitation and repair of over 300 manholes, including cementitious lining of brick manholes and various manhole repairs (MH inserts, frame/cover reseal to riser or cone, frame/cover replacements). Sixty-seven repairs, resulting from the smoke test inspections, will be completed and include: downspout and storm drain disconnects from the sewers, service lateral repairs, main line repairs, cleanout cap and riser repairs. Pipe rehabilitation/repair
consists of various methods (pipe relining, spot repairs, pipe replacement). Additionally, an 8” aerial gravity line is scheduled to be replaced. The outcome of the project will be: (1) reduction of I/I into the collection system, (2) reduction
in the volume of flow discharged to the waste water treat plant due to reduction in I/I, (3) funds spent treating I/I could be more productively utilized elsewhere, and (4) reclaim pipe capacity due the removal of sediment buildup and I/I reduction. 

Sewer Collection System Rehabilitation Project Phase II

Since the YVSA was formed, it has focused on the consolidation and evaluation of the Elkin, Jonesville, and Ronda systems and addressing the many needs of the collection system, as well as the WWTP, and prioritizing the highest need items. One of the tasks was to evaluate the pump stations to determine their condition and needs. A condition assessment was completed in 2012 of the 28 pump stations within the YVSA collection system. The assessment revealed various pump station problems and failures due to failing pumps and equipment, no standby power sources, no telemetry or SCADA alarms, corroded valves, and other issues. This project addresses the recurring or imminent failure of those pump stations, especially where failures caused environmental pollution concerns. The project consists of improvements or eliminations at 18 pump stations; 13 pump stations require various improvements, four stations will eliminated (including 4,100 LF of 8” gravity lines), and one station will be rebuilt from a suction to a submersible pump station.

WWTP Improvements Project

Projected started in April 2017 and consists of the following:
  • Construction of a 58’ diameter clarifier
  • New lab building
  • Cured-In-Place lining of approximately 2,150’ of 18” effluent line
  • Existing headworks mechanical screen replacement
  • Improve aeration control with new dissolved oxygen (DO) probes and SCADA/control
  • programming of the blowers
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