Construct Repository Cover to Support the Callahan Mine Superfund Site in Brooksville, Maine.

Project ID: W912WJ26BA008 FederalOpportunitiesSolicitation

Overview

Agency	USACE New England District
Deadline	03/09/26
Posted	02/20/26
Estimated Value	$5,000,000 - $12,000,000 (AI estimate)
Set Aside	Small Business
NAICS	562910 - Remediation Services
PSC	F108 - Environmental Systems Protection- Environmental Remediation
Location	Brooksville, ME USA

Description

Primary Latest Change

Construct Repository Cover to Support the Callahan Mine Superfund Site in Brooksville, Maine.The general scope of work for the proposed contract involves installing a composite cap over an area of approximately 13 acres. The purpose of the cap is to limit infiltration through mine waste remaining after historical copper mine operations performed on the property. The mine waste consists of rock and rock-amended sediment previously consolidated and graded as part of recent and ongoing Superfund remediation activities. The expected components of the composite cap include in order from the surface: 12 inches crushed stone (3-inch minus), geocomposite drainage layer, 60-mil textured geomembrane (seam welded), and geofabric. Other activities to be performed under this contract may include installation of drainage features (e.g., swales, culverts, etc.), grading, seeding and stabilization of disturbed areas outside stone cover system, stockpile management, and wetland improvements.

Summary (Newest Update)

Background The contract is issued by the U.S. Army Corps of Engineers, New England District, aimed at supporting the remediation efforts at the Callahan Mine Superfund Site in Brooksville, Maine. The primary goal of this contract is to install a composite cap over an area affected by historical copper mining operations to limit infiltration through mine waste, thereby contributing to environmental restoration and public safety. Work Details The scope of work includes: - Installing a composite cap over approximately 13 acres of mine waste. - The composite cap will consist of the following layers from the surface down: - 12 inches of crushed stone (3-inch minus), - a geocomposite drainage layer, - a 60-mil textured geomembrane (seam welded), and - geofabric. - Additional tasks may include: - Installation of drainage features such as swales and culverts. - Grading and stabilization of disturbed areas outside the stone cover system. - Seeding and management of stockpiles. - Improvements to wetland areas adjacent to the site. Place of Performance Brooksville, Maine

Contacts