2012 2:00:00 PM

Monday, November 26, 2012 2:00 PM
Sparks Legislative Building, 745 E. 4th Street, Sparks, NV 89431

Consent Items: 5.9

Title: Consideration and possible approval of a contract with Camp, Dresser, McKee /Smith Engineers (CDM- Smith) to perform a utility standby power engineering evaluation. This contract will not exceed $87,630.00.

Petitioner/Presenter: Neil C. Krutz, P.E. – Deputy City Manager/Kim Laber – Acting Plant Manager/ Todd Saxberg – Operations Manager

Recommendation: Staff recommends City Council approve a contract with CDM-Smith Engineers to perform a utility standby power evaluation.

Financial Impact: There is no general fund impact. Cost associated with this fiscal year is up to $87,630.00 and budget is available. This expense will be charged to Fund 5605, Account 603235, Professional Services – Engineering, under Program 131505, TMWRF Operations. Following quarterly reconciliation of TMWRF’s operating expenses, affecting the Sanitary Sewer Operations fund (1630), Sparks is expecting reimbursement from the City of Reno based on actual flow splits provided by ADS Environmental as outlined in the inter local agreement for the operations of the facility, for the actual cost of this contract. The flow split for most recent quarter, ending June 30, 2012, was 67.80% (COR) / 32.20% (COS) for the Cities of Reno and Sparks respectively. (See Table 1 attachment)

Total Costs: $87,630.00

Fund: Joint Treatment Plant Account: 603235
Program: TMWRF Operations (131505)
Amount: $87,630.00 Budget Status: Budget Exists

Business Impact (Per NRS 237):
A Business Impact Statement is not required because this is not a rule.

Agenda Item Brief: City staff is asking the City Council to approve a contract with CDM-Smith Engineers in an amount not to exceed $87,630.00 to perform a utility standby power evaluation.

Background: TMWRF has recently experienced a critical failure of the medium voltage switchgear that supplies power to the entire regional wastewater facility. The storage capacity at the regional wastewater facility (TMWRF) in the event of an extended power outage caused internally or externally is hours rather than days. After that capacity is reached we have only emergency pumping mobilization at a substantial expense to prevent an environmental catastrophe on the Truckee River system. We have chosen CDM-Smith to develop a project that addresses standby utility power for TMWRF. This project is the result of the recent failure of the main circuit breaker “A” and “B” at the medium voltage switchgear MVSWGR-1, which affected the plant’s ability to operate and required the installation of eleven (11) temporary emergency generators throughout the facility. Costs for the short time (1 month) we were forced to run this regional utility on generators will top out over 1.2 million dollars. The utility backup power evaluation will focus on the potential selection of a standby generator system to provide power to the facility in the event of the failure of the plant utility feeders or a utility service interruption.

Analysis: TMWRF currently has a dual ended (secondary selective) 2300V voltage primary system providing the entire daily electrical demand at the facility. After the failure of the main circuit breakers at the medium voltage switchgear MVSWGR-1, TMWRF requested a planning level study for a new standby emergency generation system for the entire facility. The new emergency generator(s) will be planned and sized to provide full operations capacity during the event of a power loss, and will bring the plant into compliance with the requirements of “Ten State Standards”. CDM Smith will look into the most feasible preliminary design concept to match the TMWRF plant load requirements. This issue plus the location and type of generator units will be considered. The generators can be installed outside on concrete pads in weatherproof walk-in enclosures in a centralized arrangement or in a distributed generator power system arrangement. In other words, install multiple units near the key load centers of the plant. The most convenient location for a centralized generator system is near the existing electrical room since this will reduce the amount of cabling and conduit required, therefore reducing project capital costs. As discussed with TMWRF, site availability could be an issue and other feasible locations will need to be considered. The exact location will be discussed during a proposed design workshop.

Alternatives: City Council could direct staff to provide other alternatives.

Recommended Motion: I move to approve a contract with CDM-Smith in an amount not to exceed $87,630.00

Attached Files:

TMWRF Standby Generator Proposal.pdf

Table 1.pdf

CDM Smith Contract-Generator Evaluation.pdf

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