City of Reno
Nevada

Staff Report
9072

Staff Report (For Possible Action): Approval of Consulting Agreement with Stantec Consulting Services Inc. for Engineering Services for the Truckee Meadows Water Reclamation Facility (TMWRF) Thickened Waste Activated Sludge System Evaluation in the amount of $102,500 with the City of Reno's share being $70,345.75. (Sewer Fund)

Information

Department:Public Works - Environmental EngineeringSponsors:
Category:Agreement

Attachments

  1. Printout
  2. TWAS Evaluation Agreement

Recommendation and Proposed Motion

Recommendation:  Staff recommends Council approve the Agreement for Consultant Services with Stantec Consulting Services Inc. for consulting engineering services as described in the attached proposal in an amount not to exceed $102,500, with the City of Reno's portion being $70,345.75 (Sewer Fund), and authorize the Mayor to sign.

Proposed Motion:  I move to approve the staff recommendation.

 

Staff Report Formal Body

Summary:  The attached scope of work with Stantec Consulting Services Inc. will provide engineering design services for the Truckee Meadows Water Reclamation Facility (TMWRF) Thickened Waste Activated Sludge (TWAS) System Evaluation.  This agreement includes engineering services to assist in the evaluation of the existing system, and the development of recommendations regarding actions to maintain reliable system operation.  Staff recommends Council approve the Agreement for Consultant Services with Stantec Consulting Services Inc. for consulting engineering services as described in the attached proposal in an amount not to exceed $102,500, with the City of Reno's portion being $70,345.75 (Sewer Fund).

 

Background:  The Thickened Waste Activated Sludge (TWAS) System was installed in the 1970’s and has been in continuous operation since.  The system helps to thicken the sludge from the secondary clarifiers and conveys the thickened material directly to the TMWRF digesters that produce methane gas that is used for generating electricity and heat for the facility.    Most of the equipment is original and is nearing the end of its reliable design life.  There are more efficient systems that consume less energy and chemicals.  Newer systems could also help TMWRF improve digester performance and dewatering.  It should also be noted that serviceability of the equipment is getting difficult with limited availability of parts and the aging equipment no longer being supported by the supplier. 

 

Discussion:  This proposal provides for an evaluation of the system that includes condition assessment, development of the estimated remaining reliable design life, and recommendations regarding future improvements.  This work will also include confirming current TWAS system treatment capacity, developing an estimate of the required future TWAS system treatment capacity, evaluating system redundancy, identifying current and potential future system deficiencies, and providing recommendations regarding actions to mitigate deficiencies.

After completing the current work scope, future work may include design and construction of recommended improvements that may be identified in the current evaluation.  This will be part of a future phase of the project and is not included in the current scope. 

 

Stantec Consulting Services Inc. was selected from the City’s approved list of engineering consultants.    

 

Financial Implications:  The City of Reno will administer the agreement and will be reimbursed for a portion of the costs by the City of Sparks through the current cost sharing agreement for TMWRF operation and maintenance.  The City of Reno and the City of Sparks share the cost of this project as follows: 68.63 percent for Reno and 31.37 percent for Sparks, as shown in Table 1.  Costs for the City of Reno are budgeted in the Sewer Fund.  This project is included in the TMWRF Capital Improvement Plan that was approved by the Joint Coordinating Committee (JCC). 


Table 1 - Cost Sharing Between Reno and Sparks

Total Cost of Agreement

Reno Share

Sparks Share

 

$102,500

 

$70,345.75

 

 

$32,164.25

 

 

Percentages

 

68.63%

 

31.37%

 

Legal Implications:  Legal review has been completed for compliance with City procedures and Nevada Law.