07-25-2005 Council Packet - Laserfiche WebLink

Home Browse Search

1 REQUEST FOR COUNCIL ACTION ^ 2005 • r UK ORONO DATE: July 25,2005 ITEM NO. Department Approval: Name Gregory A. Gappa Title Director of Public Services Administrator Reviewed: Agenda Section: Public Services Director's Report Item Description: Accept Quotations Wildhuret Trail Forcemain Relocation Project This project is for the relocation of the sanitary sewer forcemain from Lift Station Number 2 1 which is located on Wildhurst Trail. The existing forcemain from the lift station goes between several houses and across lakeshore yards as shown on the attached map. This steel pipe forcemain was installed in 1973, and we have had previous breaks in steel forcemains of this age. There also have been several recent approvals for new home construction on properties that the forcemain crosses, and the construction work near the forcemain could be problematic. In the event of a forcemain bieak, access to this area would be extremely difficult for the completion of repairs. Also, with the forcemain located between homes and close to the lakeshore there is a potential for wastewater spills into adjacent homes or into Forest Lake from any forcemain breaks. A new forcemain will be directionally bored along Wildhurst Trail and will discharge to an existing gravity sewer located in Wildhurst Trail. The new forcemain will be a HOPE plastic forcemain, with a minimal number of electro fused joints, which is not subject to corrosion from the poor soils in this area. This forcemain will also be easily accessible for maintenance purposes. This project will be completed by two contractors, a directional boring contractor and a different contractor to complete the lift station work The top of the lift station is too low and during heaNy rainfall events water ponds on top of the lift station resulting in the inflow of surface water into the lift station, contributing to the City ’s l&l problem. This project also includes raising the lift station top elevation 18” and installing a new watertight access hat' h to reduce l&l. The new MCES rules require the City to spend approximately $30,000 per year on l&l reduction or pay a surcharge on the MCES wastewater bills beginning in 2008. Our annual budget for l&l projects is $30,000, so the work to raise the lift station top will be funded using the Sewer Fund l&l budget, so we can easily track our expenditures for this work. We have sent a Request for Quotations to directional boring contractors, and also to lift station construction contractors, that have previously completed City projects. The estimated construction cost for this luoject is less than $50,000, so the solicitation of quotations is an acceptable method to select the contractors to complete this project. I