Fernando Martinez

Public Works Manager

Chris Lips

Assistant Public Works  Director

Issue Statement: The City of Oakland Park has a wastewater system that consists of over 100 miles of gravity sewer mains and 36 miles of sewer laterals. Over the lifespan of this infrastructure cracks develop. Since most of the gravity sewer system is submerged beneath the water table, groundwater infiltrates into the gravity sewer system when a crack occurs. As sea-level rise occurs and is predicted to increase, cracks previously above the water table may become submerged, expanding the areas where infiltration occurs. 

Recommended Action: Staff recommends the City Commission adopt a resolution approving a contract with Advanced Plumbing Technology (APT) to repair approximately 8,720 feet of gravity lines utilizing the terms and conditions of the City of Milton contract Invitation to Bid, ITB 2021.02 at a cost not-to-exceed $300,370.

Background: The Public Works Department systematically cleans and inspects the sewer lines with Closed Circuit Television (CCTV) equipment to identify and locate where infiltration and deficiencies are found. As part of the annually adopted Capital Improvement Program (CIP), annual funding is provided to reline sewer pipes.  

The most efficient method to repair these pipes, buried beneath the City streets, is by lining the existing pipes or grouting at joint leaks. This remediation method is beneficial as it avoids open-cutting of existing roads and driveways, minimizes downtime of the sewer system, and reduces disturbances to the community.

The Cured In Place Pipe (CIPP) lining process inserts a flexible fiberglass material into the existing pipe. The material is then inflated until the new material forms against the inside of the existing pipe and cures in the shape of the existing pipe, hardening inside and bridging over and sealing any cracks and leaks.

Advanced Plumbing Technology has performed gravity sewer system lining in many cities and counties across Florida and their references have been very satisfied with the quality of the work performed. Staff recommends contracting with APT to conduct the gravity sewer lining given this vendor’s references and competitive pricing.  Oakland Park would utilize the City of Milton's contract ITB 2021.02 Cured In Place Pipe contract.

The lining work to be performed will be within the City's A2 and C2 basins.  The attached maps show the location of these basins and the specific lining areas within each.

The FY 2022 CIP included $300,000 for relining; the project is identified as furthering the infrastructure element of the Strategic Plan. As shown in the attached proposals, the cost of the A2 Basin relining is $45,188 and the cost of the C2 basin is $255,182 for the combined cost of $300,370. Funds are available within the Wastewater Division's FY 22 Budget under Capital Outlay Infrastructure account.

The proposed expenditure is as follows:

Contract to Line Gravity Mains in Wastewater Basins C2 and A2

Staff recommends the City Commission adopt a resolution approving a contract with Advanced Plumbing Technology (APT) to repair approximately 8,720 feet of gravity lines utilizing the terms and conditions of the City of Milton contract Invitation to Bid, ITB 2021.02 at a cost not-to-exceed $300,370.