Consideration and Approval of Contract:  First Amendment to the Cinder Lake Landfill Construction Manager at Risk, Phase 2-Cell D, Construction Services Agreement - GMP 2 with Rummel Construction, Inc.
 

1. Approve the First Amendment to the Cinder Lake Landfill Construction Manager at Risk, Phase 2-Cell D, Construction Services Agreement - GMP 2 with Rummel Construction, Inc. of $2,344,891.66, in addition to an Owner's Contingency of $55,108.34, for a total price of $2,400.000.00, with a scheduled start date of July 2, 2024; and
2. Authorize the City Manager to execute the necessary documents.

Cell D is a thirty-acre area that has been designed and partially developed for future disposal needs at Cinder Lake Landfill (Landfill). When fully developed, Cell D will provide approximately 3.8 million cubic yards of landfill capacity with an estimated life of 25 years and $115 million in revenues. The eastern portion of Cell D (Phase 2, Cell D) has been designed to provide approximately 1.1 million cubic yards of airspace. In 2023, the City of Flagstaff contracted with Rummel Construction, Inc. to excavate soil from the eastern portion of the site (also known as GMP 1). The scope of work for the proposed Agreement (GMP 2) includes installation of environmental controls required to achieve the engineering design standards of the United States Environmental Protection Agency (EPA) and Arizona Department of Environmental Quality (ADEQ). Such environmental controls include the sub-base layer, liner, leachate collection system, and operations layer.


This course of action is recommended as the best path forward for the Cinder Lake Landfill, as it demonstrates a fiduciary responsibility of the City, maintains compliance, and addresses future growth needs for the facility, which serves as a regional landfill.

The First Amendment to the Cinder Lake Landfill, CMAR Phase 2-Cell D, Construction Services Agreement - GMP 2 is funded by the total budget appropriations of $2.4 million from the Solid Waste Fund (211-06-167-0631-0-4433) in fiscal year 2024-2025.

On June 15, 2021, City Council approved Item 7.C.-Construction Manager at Risk Construction Services Contract to Rummel Construction Inc. for Construction of the Phase 1-Cell D for the Guaranteed Maximum Price of $1,298.649.80.

On June 6, 2023 City Council approved Item 7.D.-Construction Manger at Risk Construction Service Contract of Phase 2-Cell D to Rummel Construction for a Guaranteed Maximum Price (GMP 1) of $4,300,000.00.

1. Approve the First Amendment, as recommended.
2. Do not approve the First Amendment, as proposed

When fully developed, the total size of Cell D is approximately thirty (30) acres and has an overall airspace capacity of 3.8 million cubic yards (25 years of airspace based on current disposal trends). The estimated total cost of the full development of the 30-acre cell is $15 million, far exceeding the current budget capacity of the Solid Waste Fund. Therefore, Cell D was split into two distinct portions: the eastern portion and the western portion. Through the GMP 1 CMAR process, staff was able to collaborate with the design engineer and Contractor to develop the eastern portion of the cell in a more-tailored approach. The work in GMP 2 will allow the eastern portion of Cell D to be permitted and ready for acceptance of municipal solid waste by fall 2024. The western portion of Cell D is budgeted for development in 2027 and 2028.

This is an amendment to further the project that was solicited by staff through a Request for Statement of Qualifications. On February 24, 2021 Procurement and Solid Waste staff requested statements of qualification to excavate Sequence D at Cinder Lake Landfill. Rummel Construction, Inc. was awarded and has worked with the landfill staff to manage this project.

Priority Based Budget Key Community Priorities and Objectives
High Performance Governance

• Serve the public by providing high quality customer service
• Enhance the organizations fiscal stability & increase efficiency and effectiveness

Safe & Healthy Community

• Ensure the built environment is safe through the use of consistent standards, rules and regulations, and land use practices.

 Sustainable, Innovative Infrastructure

• Utilize existing long-range plan(s) that identify the community's future infrastructure needs and all associated costs.
• Deliver outstanding services to residents through a healthy, well maintained infrastructure system.

Environmental Stewardship

• Promote, protect, & enhance a healthy, sustainable environment & its natural resources.

Regional Plan

• Goal PF.2 - Provide sustainable and equitable public facilities, service, and infrastructure systems in an efficient and effective manner to serve all population areas and demographics.

No direct connection to the Carbon Neutrality Plan.

No connection to the 10-Year Housing Plan.