Item 6B- Resolution No. 18-04AGENDA ITEM:
SUBMITTED BY:
DATE:
BACKGROUND:
CITY OF ATLANTIC BEACH
CITY COMMISSION MEETING
STAFF REPORT
Purchase GEA Westfalia Spare Rotating Assembly for the Wastewater Treatment
Plant (WWTP) Centrifuge from Carter & Verplank, Inc., as they are the sole
source distributor of the GEA Westfalia CF 4000 Centrifuge equipment used at
theWWTP.
Kayle W. Moore, P.E.
Public Utilities Director
January 26, 2018
The 2011 WWTP upgrade included a new sludge dewatering centrifuge and new odor control equipment
to replace the antiquated and less efficient sludge drying beds. The new centrifuge is more efficient and
reduced the number trips to the landfill and cost to dispose of the bio solids resulting from the
wastewater treatment process.
The new dewatering facility was designed and constructed to provide for a second centrifuge unit for
redundancy, which was to be added at a later date. The primary component in the centrifuge unit is the
rotating assembly. Based on input from area utilities with sim i lar equipment, it was determined by staff
to be more cost effective at this time to purchase only the rotating assembly in order to have on -site
spare if/when needed in lieu of installing complete second unit. Purchase and installation of a complete
second unit is expected to cost more than twice this amount. As the centrifuge is used only 2 to 3 days
each week, there is ample flexibility to replace the rotating assembly if needed, provided we have the
replacement unit on-site.
BUDGET: We included in the FY 2018 Operating Budget the purchase of one centrifuge rotating
assembly to serve as an on-site spare unit for back-up purposes. The total for the spare
rotating assembly is $187,400.
ATTACHMENTS: Carter & Verplank price quote.
RECOMMENDATION: To approve the pu r chase of the GEA Westfalia Spare Rotating Assembly for the
CF 4000 Centrifuge from Carter & Verplank, Inc. as they are the sole source distributor of
this equipment.
REVIEWED BY CITY MANAGER: a.. M
Agenda Item 6B
February 12, 2018