HomeMy WebLinkAbout02.a. General Manager Written Announcement Page 1 of 1
Item 2.a.
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Central Contra Costa Sanitary District
March 8, 2018
TO: HONORABLE BOARD OF DIRECTORS
FROM: ROGER S. BAILEY, GENERAL MANAGER
SUBJECT: ANNOUNCEMENTS - MARCH 8, 2018
TREATMENT PLANT
1) Emergency Repairs Needed to Variable Frequency Drive at Headworks Facilities
The influent pump station has experienced multiple failures on one of the variable frequency drives (VFD)
at the headworks facilities for Pump No. 1 (the largest wet weather pump in wetwell No.1). The service
provider and maintenance staff have attempted multiple repairs, but these fixes and repairs have not
proven to be reliable. Due to the uncertainty of these repairs and limited availability of spare parts on this
20-year-old VFD (now obsolete) and the criticality of maintaining a working influent pump station, Capital
Projects is pursuing a change order to replace that VFD. The estimated cost of the change order is
approximately$250,000. More information will be provided to the Board in the near future.
March 8, 2018 Special Board Meeting Agenda Packet- Page 70 of 70