Closed Solicitation · DEPT OF DEFENSE

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

    Sol. W912WJ26BA008SolicitationSet-aside: Total Small Business Set-Aside (FAR 19.5)CONCORD, MA
    Closed
    STATUS
    Closed
    closed Mar 18, 2026
    POSTED
    Mar 24, 2026
    Publication date
    NAICS CODE
    562910
    Primary industry classification
    PSC CODE
    F108
    Product & service classification

    AI Summary

    The opportunity involves constructing a composite cap over approximately 13 acres at the Callahan Mine Superfund Site in Brooksville, Maine. The project aims to limit infiltration through mine waste and includes installing drainage features, grading, and stabilization of disturbed areas. Bidders should be prepared for environmental remediation and construction services related to mine site management.

    Contract details

    Solicitation No.
    W912WJ26BA008
    Notice Type
    Solicitation
    Set-Aside
    Total Small Business Set-Aside (FAR 19.5)
    Posted Date
    March 24, 2026
    Response Deadline
    March 18, 2026
    NAICS Code
    562910AI guide
    PSC / Class Code
    F108
    Contract Code
    2100
    Primary Contact
    Elizabeth Glasgow
    State
    MA
    ZIP Code
    01742-2751
    AI Product/Service
    service

    Description

    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.

    Key dates

    1. March 24, 2026Posted Date
    2. March 18, 2026Proposals / Responses Due

    AI search tags

    Frequently asked questions

    Construct Repository Cover to Support the Callahan Mine Superfund Site in Brooksville, Maine. is a federal acquisition solicitation issued by DEPT OF DEFENSE. Review the full description, attachments, and submission requirements on SamSearch before the response deadline.

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