Septage Treatment Facility Operations

Yarmouth-Dennis Regional Septage Treatment Operations

Weston & Sampson has provided full-time contract operations of the Yarmouth-Dennis Regional Septage Treatment Facility since July 2009. Operations staff performed all necessary operation and maintenance duties, as highlighted below.

  • Vehicle checking and weighing
  • Primary clarification
  • Operation of oxidation ditch
  • Secondary clarification
  • Sand Filtration
  • Ozonation
  • Ultraviolet disinfection
  • Effluent storage
  • Sludge and grit processing and disposal
  • Onsite laboratory bench testing
  • Operation of reclaimed effluent system for local golf course irrigation

Weston & Sampson recommended and managed two phases of capital improvements at the facility.

  • A new SCADA system was implemented to integrate with the existing SCADA panels throughout the facility to increase real-time monitoring ability of all system processes from several locations in the facility.
  • Dissolved oxygen monitoring equipment was installed into the oxidation ditch to automatically control operation of the blower for decreased energy usage and increased treatment efficiency.
  • Variable frequency drives were added to each of the irrigation pumps to automatically control spray field application, offering energy savings.


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