Consideration and Approval of Contract:   Approve the award of the cooperative contract to Revolution Industrial, LLC for the repair/replacement of both the primary tank weir supports and the grit tank pipeline at the Wildcat Hill Water Reclamation Facility. The cooperative is through The City of Phoenix (#144421-0), awarded to Revolution Industrial, LLC.

1. Approve the cooperative contract with Revolution Industrial, LLC for the repair/replacement of the primary tank weir supports and the grit tank pipeline in the amount of $152,143.35; and
2. Authorize the City Manager to execute the necessary documents.

City of Flagstaff Wildcat Hill Water Reclamation Plant needs these repairs completed immediately because both the primary tank weir brackets and the grit pipeline have corroded over the years and are now at a point of near failure or portions have already failed.  Continued corrosion of this equipment could lead to a catastrophic emergency event and the wastewater treatment process could be lost. The new brackets will be replaced utilizing stainless steel and have a life expectancy of 20+ years. The new grit pipeline will be glass-lined and will not have the same corrosion issue with a life expectancy is 30+ years.

The project was not a budgeted expense.  Staff is proposing to utilize funds that were previously allocated in Program 3204 Energy Efficiency, the Wildcat Blowers Replacement Project, Acct 203-08-375-3204-0-4463 with a budget appropriation for FY2019-20 of $497,815).  This energy efficiency project has been put on hold at this time due to challenges identified during project scoping that significantly increased project costs.  

No Impact

1) Provide sustainable and equitable public facilities, services, and infrastructure systems in an efficient and effective manner to serve all population areas and demographics.

There has been no previous Council decision on this item.

The primary brackets support weirs which is how effluent water leaves the primary treatment process. Hydrogen Sulfide gas that is in this area, when mixed with water creates sulfuric acid.  The support brackets are now at a point of failure, which would be catastrophic because of the potential to lose the wastewater treatment process.
 
The grit pipeline was replaced 12 years ago utilizing a non-glass lined pipe. Over the past 12 years, the grit has eroded the inside of the pipe.

These repairs will ensure that these units stay online over the life of these system allowing staff to continue treatment as the facility was designed.  

N/A