Callahan Mine Superfund Site, Brooksville, ME   2

The U.S. Army Corps of Engineers, New England District will be issuing a Request for Proposal for an Indefinite Delivery/Indefinite Quantity (IDIQ) Remediation Services Task Order Contract for the Callahan Mine Superfund Site in Brooksville Maine. The total value of the contract is not to exceed $45,000,000.00 with a five-year ordering period. This will be a Small Business Set-Aside, Best Value Trade-off award. The NAICS code for the work is 562910 (size standard 750 employees). The contract will be a cost reimbursable type contract with some firm fixed price contract line items. This will be a performance-based procurement with specific outcomes defined in each negotiated task order. There is no limit on the number of Task Order(s) that may be executed, but in no case shall the sum of all Task Order(s) executed exceed $45,000,000.00. The Government is obligated to satisfy a minimum guaranteed amount of not less than $300,000.00 over the life of the contract.

The former Callahan Mine site was an open-pit mine developed in Goose Pond, a shallow tidal estuary of approximately 75 acres in the town of Brooksville, Maine. From 1968 through 1972, approximately five million tons of waste rock and 800,000 tons of ore-bearing rock were mined from the open pit. The waste rock was disposed on-site in three large piles and was also utilized to create a dam for the tailings impoundment. The outside footprint of the tailings impoundment encompasses approximately 17 acres and contains 725,000 cubic yards of mining related waste (tailings). The tailings impoundment and waste rock pile #3 are both adjacent to the Goose Pond Salt Marsh, creating a potential risk of significant ecological damage. Metals contamination (copper, zinc, lead, and arsenic) has been detected in groundwater and soil at levels above remediation objectives within the tailings impoundment and waste rock pile #3. Sediment and surface water within Goose Pond have also been impacted by the contamination. In summary, the major work elements are remediation of the tailings impoundment, remediation of waste rock pile #3, slope stabilization of the tailings impoundment, consolidation and capping of the tailings impoundment, sediment excavation and disposal in a confined aquatic disposal cell, remediation of residual contamination at waste rock pile #2 and the ore processing area, site restoration and mitigation, and monitoring.

This is not a request for proposals at this time. The solicitation requirements and contract documents to include instructions for submission and the response date will be available on or about April 21, 2017. Neither telephonic, mailed nor faxed requests for hard copies of this solicitation will be accepted. The solicitation will only be available online; in order to download the solicitation, offerors must access the Federal Business Opportunities website (www.fbo.gov). All responsible sources may submit a proposal which shall be considered by the New England District. Additional questions may be emailed to the Contract Specialist at Jessica.R.Loc@usace.army.mil.