Welcome to Clark/US, LLC’s Alexandria Renew New Nutrient Management Facility project web site. From here, you can learn more about the project, track our progress, and connect with us throughout the construction schedule.


As part of Alexandria Renew’s State-of-the-Art-Nutrient-Upgrade (SANUP) initiative, the new Nutrient Management Facility project (NMF) will further reduce the amount of nitrogen in Northern Virginia’s wastewater that flows through local waterways into the Chesapeake Bay. When complete in 2015, the NMF will allow Alexandria Renew to better process the 13 billion gallons of wastewater it treats every year. The project also has many public benefits beyond cleaner water, including:

  • Creating a synthetic playing surface to accommodate regulation soccer and lacrosse fields.
  • Burying existing electrical lines underground.
  • Realigning Hooff’s Run Drive out of a Chesapeake Bay resource protection area (RPA) and renaming the street Truesdale Drive.
  • Relocating and re-vegetating Holland Lane as required by the City’s RPA conditions.


Clark/US, LLC, will provide construction-manager-at-risk services to build the NMF, which will consist of an 18-million gallon concrete tank extending 30 feet below-grade.  The construction team also will connect the new tankage to an existing wastewater plant, install a pump station, odor control system, and the electrical facilities to power the new equipment, and relocate existing overhead, high-voltage electrical power lines below ground. Once the tank work is complete, the Clark/US team will construct the synthetic playing field above it and install other related amenities for public use.