Sparks City Council Meeting 1/23/2012 2:00:00 PM

    Monday, January 23, 2012 2:00 PM
    Sparks Council Chambers, 745 4th Street, Sparks, NV 89431

Consent Items: 5.2

Title: Consideration and possible ratification of a purchase from Invensys Operations Management in the amount of $49,596.17 to supply additional process control modules for the Distributed Control System.
Petitioner/Presenter: Neil C. Krutz, P.E., Community Services Director/Todd Saxberg, Acting Operations Manager
Recommendation: Staff recommends City Council purchase from Invensys Operations Management multiple process control modules and ancillary equipment for an amount of $49,596.17
Financial Impact: $422,301.00 in appropriations is contained in the Fiscal Year 2011-2012 Truckee Meadows Water Reclamation Facility (TMWRF) operating budget for Capital Equipment and Furnishings. This expense is charged to Account 604070, Capital Equipment and Furnishings, under Program 131502, TMWRF IT in Key Service Area 131500, TMWRF Administration. Following the quarterly reconciliation between the Cities of Sparks and Reno it is expected that the net impact to Sparks will be $15,558.31, being reimbursed $34,037.85 from the City of Reno based on the current on the current ownership of TMWRF (31.37% / 68.63%).
Total Costs: $49,596.17
Fund: Joint Treatment Plant    Account: 604070
Program: TMWRF IT (131502)
Amount: $49,596.17    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 that City Council approve a purchase with Invensys Operations Management to replace water damaged control modules in a process control unit. This unit delivers control and acquisition of signals to one (1) aeration tank, one (1) secondary sedimentation tank, two (2) Return Activated Sludge pumps, one (1) phosphorous precipitation tank and feed unit, three (3) aeration control valves, and three (3) aeration flow meters. This process is part of maintaining compliance with TMWRF’s discharge permit.

Background: On Friday, December 09, 2011 at approximately 10:00a.m. a pressurized water supply line broke at the Truckee Meadows Water Reclamation Facility (TMWRF). This break resulted in an electrical panel and two (2) computer control distribution units being flooded with water. The immediate effect was loss of computer control and acquisition of signals associated with one (1) aeration tank, one (1) secondary sedimentation tank and the phosphorous precipitation tank. We immediately instituted extended shift coverage and manual activation of all the areas listed above. In addition, Lab, Information Technology (IT), and Electrical Departments were all placed on standby over the weekend. Dissolved Oxygen was measured every two hours and air valves were manually adjusted. Those changes simultaneously controlled the orthophosphate in the secondary sedimentation tank. Sludge blanket in the secondary sedimentation tank was measured every two hours and the RAS pumps were adjusted manually based on those samplings. Aluminum Sulfate dosage for phosphorous precipitation was held steady state at power loss and continued to maintain adequate precipitation levels. New breakers for the electrical panel were shipped to the facility and installed Saturday morning by the electrical department. Our IT department also came out Saturday and installed controllers, UPS systems, and control modules in both control cabinets. The control modules were a combination of cards that were dried out from the incident and warehouse stock. The system was then powered up, and began working at full capacity. In a follow-up meeting on Monday Dec. 12, 2011 the report from the IT department specified an 80% reliability rating on the replacement modules that had been exposed to water. We will proceed forward with the previously planned replacement of all modules in this control unit in addition to the other affected unit. This should take place in January due to the production facility that manufactures the modules being down for maintenance during December. TMWRF believes that the replacement of the compromised control modules that were not part of the CIP replacement project is also necessary. To repair a portion of the system and leave the other ancillary components in a compromised state is imprudent maintenance. A systematic and whole system approach to reliability is the only logical path. Maintenance of permit related control equipment is paramount to TMWRF meeting its goals of protecting the public health, safety and welfare of the community. Invensys Operations Management is the sole dealer of the desired equipment. They as the manufacturer of both the hardware and software use proprietary control modules in their systems, effectively making the vendor the sole source for the needed equipment.

Analysis: Due to the mission-critical nature of this equipment, staff has already initiated the emergency purchase of the required equipment with the authorization of the City Manager. This staff report is written in order to ratify that action as the total cost is in excess of $25,000.00

Alternatives: Council could direct staff to provide other alternatives.

Recommended Motion: : I move to approve the purchase with Invensys Operations Management in the amount of $49,596.17 with the City of Sparks share being $15,558.66.

Attached Files:
     Quote for PCU-05 Ratification.rtf
     PCU_05 Emergency PO.pdf
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