IN THIS ISSUE
Unsurpassed Solutions in the Water Environment
Ribbon cutting on new wastewater treatment plant in Vermont page 2
The
Site evaluation and due diligence in Franklin, MA page 4
T&H expands corporate office to accommodate growth page 6
Wave A quarterly news publication
Fall 2015
www.tataandhoward.com
Asset management based water distribution system study in Flagstaff, AZ Ponderosa Utility Corporation (PUC) in Flagstaff, Arizona contracted T&H for an asset management based water distribution system study. T&H also helped PUC secure WIFA funding as they had limited available funds. The study evaluated the system as a whole, based on above grade and below grade assets, where above grade assets were evaluated based on remaining useful life expectancy; and water mains were based on hydraulic capacity, criticality, and risk of failure. Preliminary findings showed that very low efficiency booster pumps are being used to pump water from the tanks into the distribution system. Five booster pumps were tested and the efficiencies ranged from 6% to 24%. If all five pumps and motors were to be replaced with higher efficiency units, the anticipated reduction in electrical costs is up to 70%, resulting in a return on investment of less than one year. PUC is planning to replace the pumps and motors within the next year.
New Britain, CT water storage tank
Tata & Howard provided engineering design and is currently providing resident observation and construction administration services for a 2.0 mg prestressed concrete storage tank. The work also included piping and appurtenances, a Tideflex mixing system, site work and gravel access road, approximately 450 linear feet of 16-inch diameter water main, and cleaning and cement mortar lining approximately 430 linear feet of 20-inch diameter main on Elam Street. The project included the demolition of the existing 4.0 mg concrete storage tank.
1