The Fairfax County Department of Public Works and Environmental Services has completed the Solids Processing Rehabilitation – Phase II project at the Noman M. Cole Jr. Pollution Control Plant, which involved significant upgrades to various systems including primary and secondary scum collection, dewatering, and dissolved air flotation thickeners. The project also included rehabilitation of buildings Q1 and Q2, enhancing architectural, structural, and HVAC systems. The project was substantially completed on October 18, 2019, with the involvement of a dedicated project team.

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
Project No. WW-000017-003
Mount Vernon District
May 5, 2020
Solids Processing Rehabilitation – Phase II

2. Project Details
Solids Processing Rehabilitation – Phase II
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Description:
This project included improvements/upgrades to the primary and scum collection systems, the dissolved air flotation
thickeners, and rehabilitation of buildings Q1 and Q2 at the Noman M. Cole, Jr., Pollution Control Plant. This project
was substantially complete on October 18, 2019.
Project Overview:
• Primary Scum Collection: Installation of scum collectors, hot water spray, pumps, grinders, tank covers, and
associated piping, electrical, and instrumentation and controls.
• Secondary Scum Collection: Installation of scum collectors, pumps, hoist, water sprays, mixers, flow meters, and
associated piping, electrical, and instrumentation and controls.
• Secondary Clarifier Dewatering: Installation of new pumps, hoist, and associated piping, electrical, and
instrumentation and controls.
• Dissolved Air Flotation Thickeners: Installation of DAFT mechanisms, air saturation system, bulk polymer storage,
mixing, and feed pumps, thickened waste activated sludge (TWS) pumping, waste activated sludge (WAS) flow
meters, and associated piping, electrical, and instrumentation and controls.
• Rehabilitation of Buildings Q1 and Q2 Rehabilitation including architectural and structural repairs/improvements,
new restroom, new HVAC systems, lighting, and plumbing.
Project Team:
• Franklin Roberts, Project Manager, Wastewater Design and Construction Division
• Simranjit Chauhan, Plant Point-of-Contact, Wastewater Treatment Division
• Dan Lynch, Project Manager, Jacobs (formerly CH2M Hill Engineers)
• Maurey Williams, Resident Engineer, Jacobs (formerly CH2M Hill Engineers)
• Damon Hand, Project Manager, PC Construction Company

3. Solids Processing Rehabilitation – Phase II
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Mount Vernon District, Tax Map No. 108-3

4. Solids Processing Rehabilitation – Phase II
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Primary Scum Collection

5. Solids Processing Rehabilitation – Phase II
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Secondary Scum Collection and Dewatering

6. Solids Processing Rehabilitation – Phase II
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Dissolved Air Flotation Thickening

7. Solids Processing Rehabilitation – Phase II
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Dissolved Air Flotation Thickening

8. Additional Information
For additional Information, please call
www.fairfaxcounty.gov/publicworks
Solids Processing Rehabilitation – Phase II
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Matthew Kaiser, Public Information Officer
703-324-8455, TTY 711
Matthew.Kaiser@fairfaxcounty.gov