Fourth Incinerator Preliminary Design

Black and Veatch was selected as the Owner's Agent in 2019 to assist in preliminary design activities and to be MCES's representative throughout the
design build construction. Preliminary design activities include documenting existing systems, evaluating alternatives, completing
technical specifications, and developing the design build request for proposal. The design build request for proposal is expected to be issued in 2024.

2020 FOURTH INCINERATOR PERMITTING AND DESIGN 2025

Select Owner’s
Agent

Document Existing
Systems

Evaluate Alternatives

Complete Technical Specifications

Issue Design Build Request for Proposal

FOURTH INCINERATOR PROJECT SCOPE

The fourth incinerator will require a small addition to an existing building and will be constructed entirely within the Metro Plant property boundary. The fourth incinerator will include a new fluid bed incinerator with supporting energy recovery and air pollution control equipment. See the graphic below to see how the building will be expanded and what the fourth incinerator will look like.

The estimated cost of the fourth incinerator is $210 million with construction starting in 2025

The fourth incinerator train will include the components below

Sludge Feed

Dewatering

Fourth Incinerator

Energy Recovery

Air Pollution Control

Ash Conveyance

Cake Receiving

Effluent Water

Building Systems

FOURTH INCINERATOR AIR PERMITTING & ENVIRONMENTAL REVIEW

The existing Metro Plant air permit will be amended and an environmental review of the fourth incinerator project will be performed concurrently during preliminary design. The revised air permit for the fourth incinerator is required before issuing the notice to proceed to the design builder to start construction.

Air Permitting Process

Adding a fourth incinerator will require a major amendment to the existing Air Permit for the Metro Plant which is administered through the Minnesota Pollution Control Agency (MPCA) (Air Permit 12300053-006). Air permitting process Adding a fourth incinerator will require a major amendment to the existing Air Permit for the Metro Plant which is administered through the Minnesota Pollution Control Agency (MPCA) Air Permit 12300053-006).

Voluntary Environmental Assessment Process

The Council will also be submitting a voluntary environmental assessment worksheet (EAW) including a risk analysis screening spreadsheet (RASS) and going through an independent environmental review of the project through the MPCA.