SR 07-12-1999 - Laserfiche WebLink

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rCI ----'\) ( )j ~li{ Item 5.7.. River MEMORANDUM TO: FROM: Pat Klaers City Administrator Darrell Mack (i)~ W WTF Superintendent DATE: July 7, 1999 SUBJECT: Emergency Power Supply For Lift Stations . After meeting with utilities manager Bryan Adams, it appears that in a major power outage the utilities generating facility will be able to supply power to the wastewater treatment facility. The generating facility would not be able to supply power to any lift stations except on a four hour rotation, which is not often enough to prevent sewage backups. To keep the collection system from backing into homes we need four additional generators. Three generators would be set up at stations that cannot be down for any length of time and one generator would be used to keep the rest of our stations pumped down. The following quotes were received with Ziegler Power Systems being the lowest: Ziegler Power Systems (year of used units) 50kw 1995 (2)30kw 1996 20kw 1997 Katolight Cummins North Central Long Lake Tractor (price does not include sales tax) $57,430 Used $59,300 New $64,118.40 New $90, 210 New Even with Ziegler quoting used generators, I feel they are the best buy for three reasons: . 1) they have been checked out and repairs were made if they were needed, 2) they are set up for all 3 voltages that we have in Elk River, which makes them a lot more versatile and can be used at other locations. 3) the generator we have is 23 years old, only has 135 hours on it, and most of those are from exercising it. I believe spending the extra money on a new generator would be a waste. 13065 Orono Parkway · P.O. Box 490 · Elk River, MN 55330. TDD & Phone: (612) 441-7420 · Fax: (612) 441-7425