BASIS OF DESIGN REPORT FOR
SURFACE WATER TREATMENT
CITY OF BARRE, VERMONT

Bird's eye view of the Barre water treatment facility.

A comprehensive evaluation of the Barre water system treatment, storage and transmission distribution piping system was completed by Dufresne Group principals as a project while employed at Dufresne-Henry. The Basis of Design Report for the Barre water treatment facility contained the following specific analyses:

• Source evaluation and improvements investigations.
• Comprehensive hydraulic investigations of the completed
water system including in depth computer modeling.
• Storage tank sizing and siting evaluation.
• Alternative treatment process comparison.
• Service area delineation for setting water system connection policies.

The recommendations for water treatment were implemented with the 1992 construction of a 6.0 MGD treatment plant. The City of Barre continues to rely on the Basis of Design report for planning of storage and piping system improvements.

KEY FEATURES

• Identification of long term water main improvements for providing fire flow protection.
• Water storage evaluation for correcting system hydraulic deficiencies and providing for future needs.
• Proactive planing for THM control by recommending chlorine dioxide and PAC treatment.
• Additional barriers of protection and filtration criteria recommend in excess of regulating requirements.