BASIS OF DESIGN REPORT FOR
MINARDS POND SURFACE WATER TREATMENT
BELLOWS FALLS, VERMONT

DG in the News.

The Bellows Falls Basis of Design Report, completed by Robert E. Dufresne while at Dufresne-Henry, is a comprehensive water system planning document that contains the results of:

• Overall system hydraulic evaluations.
• Pilot investigations and corrosion control studies.
• In depth analysis and comparisons of pulsating upflow clarifier/ABW filter treatment and adsorption clarification/mixed media filtration.
The recommended treatment system, “Trident” package absorption clarifiers/mixed media filters were constructed as part of a total project completed in 1991. The basis of design process components are distinguished by their recommendation prior to the Water Supply Rule enactment.

KEY FEATURES

• Filter to waste provisions installed well in advance of regulatory requirlements.
• First implementation of SCADA technology for a Vermont water treatment facility.
• Chlorine dioxide disinfection.
• “Trident” package unit filtration.
• Potassium permanganate and PAC for taste and odor control.