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

SOL #: W912WJ26BA008Solicitation

Overview

Buyer

DEPT OF DEFENSE

Dept Of The Army

W2SD ENDIST NEW ENGLAND

CONCORD, MA, 01742-2751, United States

Place of Performance

Place of performance not available

NAICS

Remediation Services (562910)

PSC

Hazardous Substance Removal, Cleanup, And Disposal Services And Operational Support (F108)

Set Aside

Total Small Business Set-Aside (FAR 19.5) (SBA)

Original Source

https://sam.gov/opp/a670bd5ac0cd47e59ffbe0ac976a386f/view

Timeline

Posted

Jan 29, 2026

Last Updated

Mar 9, 2026

Submission Deadline

Mar 18, 2026, 5:00 PM

Qualification Details

Fit reasons

NAICS alignment with historical contract wins in similar service areas.
Scope strongly matches core technical capabilities and delivery model.

Risks

Past performance thresholds may require one additional teaming partner.
Potential clarification needed on staffing minimums before bid/no-bid.

Next steps

Validate eligibility requirements, assign capture owner, and schedule partner outreach to confirm teaming strategy before submission planning.

Quick Summary

The Department of the Army, specifically W2SD ENDIST NEW ENGLAND, is soliciting proposals for the construction of a repository cover to support the Callahan Mine Superfund Site in Brooksville, Maine. This is a Solicitation set aside for Total Small Business. Proposals are due March 18, 2026.

Scope of Work

The primary scope of work involves installing a composite cap over an area of approximately 13 acres. The cap's purpose is to limit infiltration through mine waste resulting from historical copper mining operations. The mine waste consists of rock and rock-amended sediment previously consolidated during ongoing Superfund remediation activities. The composite cap will include, from the surface: 12 inches of crushed stone (3-inch minus), a geocomposite drainage layer, a 60-mil textured geomembrane (seam welded), and geofabric. Additional activities may include the installation of drainage features (e.g., swales, culverts), grading, seeding and stabilization of disturbed areas outside the stone cover system, stockpile management, and wetland improvements.

Contract & Timeline

Type: Solicitation
Set-Aside: Total Small Business Set-Aside (FAR 19.5)
Product/Service Code: F108 - Hazardous Substance Removal, Cleanup, And Disposal Services And Operational Support
Response Due: March 18, 2026, 5:00 PM ET
Published: March 4, 2026, 5:08 PM ET

Evaluation

Specific evaluation criteria are not detailed in the provided description, but typical solicitations of this nature consider technical approach, experience, past performance, and price.