Agenda Packets - 1993/11/09 - Laserfiche WebLink

Home Browse Search

:- Agenda Section: 9.C III REQUEST FOR COUNCIL CONSIDERATION Report Number: 92-413C Report Date: 11-5-92 STAFF REPORT Council Action: November 9, 1992 ❑ Special Order of Business CITY COUNCIL MEETING DATE 0 Public Hearings ❑ Consent Agenda Council Business Item Description: Consideration of Bids for Water Filtration Equipment for Water Filtration Plants #2 and #3 Administrator's Review/Recommendation: t r4 - No comments to supplement this report - Comments attached. 79____'1"1 Explanation/Summary (attach supplement sheets as necessary.) FIJMMARY; Bids for filtration equipment for water filtration plants 2 and 3 were received on Wednesday, November 4, 1992. The specifications required pilot studies of equipment being proposed to show the ability of the equipment to meet iron levels of 0.15 mg/litre and manganese levels of 0. 025 mg/litre. State guidelines for iron and manganese are 0.3mg/litre and 0.05 mg/litre respectively. The new equipment installed at filter plant 1 meets the more stringent specifications included in the bid documents. The basis for requiring more stringent levels was due to a concern for the ability of the equipment to continue meeting the state guidelines as it ages and the decision that the lower the constituent levels the less likely there would be problems with "dirty water" in the future. Hungerford and Terry proposed equipment at a cost of $361,500, but took issue with the specification requirements for the iron and manganese levels. The pilot plant information submitted and the proposal from Hungerford and Terry state that the equipment would only be guaranteed to achieve 0.03 mg/litre for manganese at filter plant 2 and 0 . 35 mg/litre at filter plant 3 . Additionally, initial review indicated some of the physical equipment requirements also do not meet specification. Filtronics proposed equipment at a cost of $437,680. There were no exceptions to the specifications and their pilot study indi- cated their equipment would exceed the stringent specifications for iron and manganese levels. These are the only 2 manufacturers of filter equipment that can meet that space requirements of the existing buildings and pro- vide for backwash reclaim tanks within the buildings. The only other feasible alternative is to retrofit the existing equipment -continued- $ECOMMEATION• Staff recommends awarding the bi or filtration equipment to Filtronics, Inc. in the amount of their bid of $437 ,680 plus a 10% contingency, a total of $481 ,500, to be charged to acct. # 680-4121-703 .