02/19/1954 Board of Public Works Special Meeting Minutes

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0 • L� • C • ITEM NO. DESCRIPTION MANUFACTURER 0-9 Raw Sewage Pumps, Engine ::Wort1�. ng T=n Drives and Accessories INSTALLED PRIG[E We have carefully analyzed yearly fuel consumptions and electrical energy costs for the different types of engines offered. Our cal- culations indicate that an average annual saving of approximately 03500.00 and $750.00 will be effected by selecting engines as pro- posed by Worthington over those proposed by Fairbanks -Morse and Cooper -Bessemer, respectively. These figures are savings to the City over and above the average annual cost for principal and interest requirements of the added initial construction cost. The Board considered additional data presented by the Fairbanks -Morse Company on Items No. 0-8 and 0-9. Provided a belt drive gas compressor were substituted for the electric motor drive originally offered by the manufacturer, C. T. & A. reported that extra annual fuel cost would be reduced from $5, 182.00 to $4o65.00. This reduction would not be sufficient to make the Fairbanks -Morse bid lower on the evaluated basis. Also, claimed was a maintenance differential in favor of Fairbanks -Morse engines. The engineers declined to evaluate this item because of many conflicting claims. The Board then decided it would not be possible to consider the maintenance item as guarantees are not feasible and were not called for in bid proposals. In deciding upon selection of Worthing- ton engines, the decision was provisional upon written guarantees from the Contractor and Manufacturer that fuel consumptions as stated in data file( i with the Owner prior to the bid opening would be met. Failure of the engines on test to meet such guarantees would result in deductions from the contract price equal to fifteen times the calculated added annual fuel cost involved based on continuous.operation of one blower engine and one pump engine at the duty point of the driven equipment as stated in the Equipment Specifications in the Contract. Fuel costs to be com- puted at 10.5 cents per gallon for Diesel oil and 60 cents per lobo cubic feet of 1000 BTU gas. 0-10A & 0-10B Air Compressors Worthington $2,700.00 Selected on the basis of being the lowest and best bid. 0_10C & 0-10D Gas Compressors Worthington $15,450.00 i Selected on the basis of being the lowest and best bid. 0-11 Air Filters American Air Filter $18,780.00 Selected inasmuch as this was the only bid on this particular equipment. I 0-12 Chlorination Equipment (Sub - Item a - Air Master Type) Wallace & Tiernan $15,300.00 Selected on the basis of being the lowest and best bid. II 0-13A Cranes & Hoists Manning, Maxwell i Selected on basis of being lowest & Moore $4,185.00 and best bid. 0-14 Digester Covers Pacific Flush Tank Co. $186,680.00 aj Selected inasmuch as this was the only bid on this particular equipment. 0-15 Gas Storage Spheres Chicago Bridge & Iron $66,o6o.00 Selected as being the lowest and best bid, based on an evaluation given by our engineers, as follows; i We are of the opinion that spheres of either manufacturer are satisfactory, except that possibly there will be somewhat lower maintenance with those as manufactured by Chicago Bridge & Iron due to the types of supporting members. 0-16A & 0-16B Sludge Heaters (Preheater Type) Pacific Flush Tank Co. $18,700.00 Selected inasmuch as this was the only bid on this particular equipment. o-16c & o-16D Sludge Heaters Pacific Flush Tank Co. $18,56o.00 Selected inasmuch as this was the only bid on this particular equipment. 0-17 Meters & Metering Equipment 'i Builders -Providence $63,000.00 Selected on the basis of being the lowest and best bid. O-18A Raw Sludge Pumps Chicago Pump Co. $7,460.00 Selected inasmuch as this was the only bid on this particular equipment. 0-18B Digested Sludge Pumps Chicago Pump Co. $7,980.00 Selected inasmuch as this was the only bid on this particular equipment. i