Request for Proposals: The PPC is seeking proposals for an economic impact study. Go to the Request for Proposals page under What We Do (or click "view more" below) for more information.

Posted: JANUARY 14View More

Marion Hill Associates, Inc.

  • Deep air & mixed gas diving
  • Underwater inspections
  • Underwater video
  • Dam inspection and repair
  • Power plant maintenance
  • Nuclear diving
  • Towboat repair and line
  • Harbor dredging
  • Zebra mussel control
  • Underwater construction
  • Potable water inspections
  • Bridge inspection and repair
  • Traveling water screens
  • Specialty contracts
  • Pipeline inspection
  • Barge raising
  • Intake cleaning and repair
  • Specialty/industrial diving


P.O. Box 252 New Brighton, PA 15066


Rich Riley