01-10-2000 Council Packet - Laserfiche WebLink

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street disturbance and restoration. Either option will require a permit from the Minnesota Pollution Control Agency. Estimated costs for the two options are summarized below: East Lone Lake Sanitary Sewer Option Estimated Cost Per Unit Gravity Sewer Pressure Sewer $13,900 % The estimated cost for the Pressure Sewer does not include costs for the individual grinder pumps. The City has indicated that a S4.500 allowance could be added to the assessment for the purchase of an individual grinder station. This would allow for the payment of the grinder station over time. The total assessment would then be $ 18,400. The estimated cost to install the gravity sewer is nearly twicj the cost of the pressure system and is therefore much less desirable. A public informational meeting was held on December 1,1999 where 6 of the 10 residential properties were represented. Those attending the meeting that wanted sanitary sewer were unanimously in favor of the pressure sewer system. The construction of the sanitary sewer to serve the East Long Lake area is feasible from an engineering standpoint. The project is necessary because of the failing and non-conforming septic systems, lack of alternate septic sites and potential pollution problems. The capital cost ^ well as operation and maintenance costs have been considered in determining that the project is cost effective. The cost of these improvements are interrelated and should be assigned equitably to all properties. The following recommendations are presented for consideration by the Orono City Council: 1. 2. That this Report be adopted as the guide for installation of sanitary sewer to serve the East Long Lake area. That the City conduct a legal and fiscal review of the proposed project prior to the public hearing. 3. That a public hearing be held on the proposed improvements. The total estimated project cost of $202,000 should be incorporated in the public notice. The total estimated cost of S202.0CO includes a 5 percent contingency, a 20 percent allowance for design, inspection, legal, and administration costs, and a 5 percent allowance for capitalized interest and bonding costs during construction. Cost estimates are based on 1999 construction costs and can be related to the ENR cost index for December. 1999 of 6127. The cost estimate does not include easement costs that could be incurred on the project. The installation, operation and maintenance of the individual grinder stations and the connection of the sewer to the homes will be the responsibility of the property owners. Detailed cost estimates are attached for your review. The project could be constructed in 2000 if plans and specifications are ordered by Febtu^. 2000. We would anticipate an early summer bid date and late summer construction if the project was constructed in 2<III