Public Works and Environmental Services Alert:
After reviewing the force main near Covanta Pump Station in Lorton, Virginia it was determined the existing DIP force main was eroding from the inside out due to the increase in acidity levels from the landfill leachates and increase abrasion from the Covanta Energy/Resource Recovery Facility cooling water towers that were conveyed in the existing force main.
The work to be completed for the Covanta Force Main Replacement project consists of replacing approximately 2,600 LF of the existing 8” Ductile Iron Pipe (DIP) force main with 8” HDPE from the Covanta Pump Station valve vault to the Lorton Road’s Right-of-Way (ROW). Then, it will encompass replacing approximately 4,100 LF of 8” DIP with 8” of HDPE from the intersection of Lorton Road to the terminal manhole of the existing force main, manhole 107-4-165.
Adress: 9898 Furnace Rd Lorton, VA 22079 (Covanta Energy Plant)
Blue square is the Covanta Pump Station. Orange Box encompasses Phase One. Green Box encompasses Phase Two. Red broken line in the rectangular boxes is the alignment of the Force Main.
The project is progressing through the Design Phase. The county and selected engineering consultant firm, CDM Smith, are working on completing the Phase 1 95% design and Phase 2 70% design.