Bassett Engineering

  • Home
  • Company
    • About Us
    • Awards
  • Civil
    • Funding Assistance
    • Bridges and Culverts
    • Roads
    • Buildings and Land Development
    • Dams and Stream Bank Restoration
    • Surveying
  • Environmental
    • Water
    • Wastewater
    • Nutrient Removal
    • Leachate
    • Permitting
    • Renewable Energy/Waste To Energy
  • Bids
  • Careers
  • Contact

Nelson Township WWCS Extension and WWTP Renovations

Nelson Township Authority, Tioga County, Bassett Engineering
Pump Building and Contact Tank

Nelson Township Authority, Tioga Count
COMPLETED: 2005

This project included the renovation of the existing wastewater treatment plant and the extension of the wastewater collection system. The extension was needed to serve 38 homes with contaminated wells and failing septic systems on the west side of Nelson Township. The existing 56,000-gpd treatment plant, which utilized Rotating Biological Contactors (RBC’s) for secondary treatment was worn out, and every treatment process required major repairs.

Nelson Township Authority, Tioga County, Bassett Engineering
Oxic Subzones

The new 50,000-gpd WWTP removes phosphorus biologically using the Virginia Initiative Plant (VIP) process to protect the Cowanesque Reservoir. The biological reactor for the VIP process and the aerobic digester are cast-in-place concrete. Other new treatment processes include a submersible influent pump station and a reed bed sludge dewatering system.Existing clarifiers were renovated. New treatment buildings were set over the pump and chemical room and RBC chamber
table for nelsonThe small-diameter, variable-grade, septic tank effluent collection system includes:

Nelson Township Authority, Tioga County, Bassett Engineering
Aerobic Digester
  • two duplex submersible pump stations,
  • 11,000 feet of 2-, 3-, and 4-inch gravity collectors,
  • 25 septic tanks, and
  • 7,300 feet of 1 ½- and 3-inch force mains.
Nelson Township Authority, Tioga County, Bassett Engineering
Blower Building and Clarifiers

Permits Obtained: NPDES, WQM Part II, Highway & Bridge Occupancy, E&S Plan, Water Obstruction & Encroachment Permit, Stormwater Management NPDES Permit

Funding: PENNVEST grant and loan funding and CDBG Grants were obtained.

Project Included: Phase I Archaeological Investigation, 30 easements and one subdivision, two electric and one phone service.

Nelson Township Authority, Tioga County, Bassett Engineering
Sludge Zone

Quick Links

  • Buildings and Land Development
  • Wastewater
  • Nutrient Removal
  • Roads
  • Bridges and Culverts
  • Awards
  • Funding Assistance

Start A Project

If you’re ready to start a new project, or to request more information, call us.

Phone : 570-368-2131

Connect with Us

  • Facebook
  • LinkedIn

1440 Broad Street
Montoursville, PA 17754

Copyright © 2025 · Bassett Engineering, Inc. · site designed and powered by Xtego.