Attached for your review and consideration for approval is an agreement and a proposal from Granite Inliner, LLC in the amount not to exceed $137,268.48 for sanitary sewer gravity main rehabilitation.  The agreement includes the same conditions and unit pricing as the current City of Casselberry RFP 2019-0467.  The usage of this contract and pricing is in accordance with the City's purchasing procedures and guidelines.

Subsequent to Sewer Collections maintenance staff pipe inspections, severe deterioration of several existing gravity mains have been identified in the West Grand neighborhood, the Cypress Knolls neighborhood, several areas north of the City’s downtown area, and along Louisiana Avenue west of Frances Avenue Park.  All of the gravity mains proposed to be lined have extensive cracking, infiltration of water, sand, and root intrusion.  Further deterioration of the gravity mains identified could result in damage to streets and right of ways if not corrected.  In addition, the current pipe conditions are the direct result of higher sewer lift station pump run times which increase the utilities operating and maintenance cost for equipment repair and treatment of the effluent. 

As Council is aware, this type of project has been included annually in the Public Works Capital Improvement Program as a continual proactive approach to rehabilitate an aging infrastructure.  This type of rehabilitation method has a considerable reduction in cost from traditional pipe laying construction because it eliminates the cost of restoration and allows the existing facilities to remain in place with no disruptions to the general public.  For this project 2,351 linear feet (LF) of eight inch cured-in-place-pipe (CIPP), 685 LF of 10” CIPP, and 324 LF of 12” CIPP will be installed.  Finally, 57 sewer lateral reconnections will be performed.