F.J. Griffith, Jr. Wastewater Treatment Facility


The F.J. Griffith Wastewater Treatment Plant project consisted of the construction of a new state-of-the-art 120-mgd water treatment plant in Fairfax County, Virginia. The new treatment plant replaced the existing Lorton and Occoquan Treatment Plants. The new facility also included public meeting facilities, a wildflower meadow and public ball field space.


Specialized Engineering was responsible for monitoring Construction Quality Assurance/Quality Control (QA/QC) during the phases of construction. Testing and Inspection Services provided by Specialized Engineering included the following:

  • Structural Backfill/Fill
  • Reinforcing Steel
  • Structural Steel
  • Formwork
  • Concrete Pre-Placement
  • Cast-In-Place Concrete

Specialized Engineering conducted laboratory testing and analysis of proposed fill materials, testing of concrete cylinders, and soil sampling. Wish to learn more about this project? Please contact us at 800-773-3808.