Piscataway WWTP Storage and Headworks Improvements

  • Value: $41,362,000
  • Started: 2014
  • Completed: 2016
  • Location: Accokeek, MD
  • Owner: Washington Suburban Sanitary Commission
  • Engineer: Hatch Mott MacDonald / Gannett Fleming

Project Description

Expansion of the existing Piscataway WWTP increasing plant capacity from 60 MGD to 120 MGD. Construction of new Headworks facilities which include an Influent Distribution Box, Screen Chamber, Grit Removal System, Storm Diversion Chamber. Sludge removal and rehabilitation of existing Storage Ponds. New 5 million gallon concrete Storage Tank and Emergency Storage Pond with geomembrane lining system. Other work includes Process and Chemical Piping, Electrical and Instrumentation systems to support new facililties.

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