8.3. SR 12-07-2015Request for Action
To
Item Number
Mayor and City Council
8.3
Agenda Section
Meeting Date
Prepared by
General Business
December 7, 2015
Tina Allard, City Clerk
Item Description
Reviewed by
Update: Wastewater Treatment Facility Expansion
Cal Portner, City Administrator
Reviewed by
Action Requested
None
Background/Discussion
Staff will be in attendance to provide an update regarding the progress of the Wastewater Treatment
Facility Expansion.
Financial Impact
N/A
Attachments
■ None
P o w E H E U e r
ATURE
Wastewater Treatment Facility
Improvements
Project Update
December 7, 2015
By: Tejpal Bala, P.E.
Reasons for the Project
New NPDES Permit
•
New Phosphorus Limits
–
New Mercury Limits
–
Liquid Stream Process
Extended Aeration
•
Optimization and expansion of existing facility
–
This process set the City up better for meeting any
–
future limits (nitrogen, etc.)
Greater operational flexibility
–
More consistent effluent limits
–
Construction
Bid Date –June 5, 2014
•
Rice Lake Cons. Group was selected as general
•
contractor.
Start Date –October 28, 2014
•
Start of Construction –October 2014
Biosolids Processing
Aerobically digested biosolids.
•
Screw Press used for
•
dewatering.
Cake solids (18%) product
•
Less product to haul/land apply
–
(86% reduction)
Greater operational flexibility
–
Current/ Near Future Outlook
Started up the blowers for aeration.
•
Switch over to Activated Sludge Process late
•
December.
Training the operations staff to run pumps,
•
blowers, and mixers to run activated sludge
process.
Overall Schedule
Approximately 63% complete.
•
Expected to meet Major Construction milestones.
•
Final Completion Date: February 2017.
•