The Expansion Proposal: What you need to know

Overview

Coffin Butte Landfill’s 2024 expansion application is the culmination of more than two years of active listening and understanding, dialogue and consideration, and planning that incorporates feedback from various community stakeholders whenever possible.

Highlights of this proposal include:

  • An expansion that is 50 percent smaller than the 2021 proposal;
  • Protecting and improving Coffin Butte Road;
  • Increased transparency, communication and community responsiveness;
  • Improved vegetative screening along major travel corridors;
  • Containing the Landfill’s working face and disposal area to the Landfill Site (LS) zone; and
  • Continuous, reliable and affordable disposal capacity while the County aligns on a solid materials management plan (SMMP).

Watch: July 9 Virtual Community Meeting

Documents and expert reports:

Coffin Butte Landfill expansion materials are linked below. You’ll find a summary of the application, highlights of the proposal, an FAQ and a map.

2024 CUP Application Burden of Proof and Related Documents:
Coffin Butte 2024 CUP Application
Conditional Use Permit Application
Coffin Butte CUP Drawings S&S
Coffin Butte Wildlife
CEC Letter of ODEQ Permits Required
Coffin Butte Landfill Noise Study
Valley Landfills Odor Methane and Hydrogen Sulfide Memo
Coffin Butte 2024 Findings on Odor
Transportation Report
CUP Environmental Summary
Expansion Drainage Report
Coffin Butte Landfill Aerial Renderings
SCS Engineers Fire Risk Assessment Report of Coffin Butte Landfill By James Wright
Reclamation Plan For Expansion Area
Coffin Butte 2020 Solid Waste Permit Renewal
Development Area Hydrogeologic and Geotechnical Characterization Workplan
Workplan Approval
Summary Report Letter for Archeology
Leachate Summary
Seismic Design
BOC Methane Follow Up
Benton County Arsenic Response
Phase II Geotechnical Exploration Report
Lighting Statement
Well Boring Logs
Tax Lot Deeds

Expansion Highlights and Fact Sheets:
Proposal Highlights
Proposal FAQ
Aerial Map
Executive Summary
Expansion FAQ
Waste Origination Poster
PFAS Fact Sheet
Landfill Life FAQ
Methane/Compliance Fact Sheet

We welcome your feedback and comments. Please click here to send us a message.

Comments will be updated and posted to the website in a timely fashion throughout the application process. We will do our best to respond to substantive comments received.

To view comments received click here.