Attachment 01Grindstone WWTP SCH B.xlsx

This is a Schedule B pricing template for the Grindstone Recreation Area Wastewater Treatment Plant Replacement project located in the George Washington & Jefferson National Forest. The project involves comprehensive rehabilitation of the existing sanitary sewer system and decommissioning of the existing lagoon wastewater treatment system at Grindstone Campground. The work is organized into four primary Contract Line Item Numbers (CLINs): Mobilization (CLIN 001), WWTP Decommissioning (CLIN 002), Sanitary Sewer Replacement (CLIN 003), and New WWTP & Disposal System (CLIN 004), with an optional bid item for split rail fencing.

The base scope includes removal and replacement of over 5,280 linear feet of existing sanitary sewer pipe, 24 existing manholes, and installation of approximately 4,680 linear feet of new 8" and 6" PVC sanitary sewer with 26 new manholes. Decommissioning work encompasses removal of existing sanitary, water, and electrical components, discharge lagoons, and sludge mitigation. The new wastewater treatment system features a 5,000 GPD Advantex treatment system with multiple specialized tanks (16,000-gallon primary septic tank, 8,000-gallon secondary septic tank, flow equalization tank, recirculation tanks, and final dose tank), along with drip field components, electrical controls, landscaping screening, security fencing, and site improvements. The project requires selective demolition of three campsites and includes RV dump station installation. All work items are listed as lump sum (LS) or unit pricing basis, with the contractor responsible for furnishing all materials, personnel, and equipment necessary for completion.