Solicitation W912DW-15-R-0001 - Bunker Hill Central Treatment Plant Upgrade and Groundwater Collection System Project, Kellogg, Idaho

Solicitation No: W912DW-15-R-0001
Central Treatment Plant Upgrade and Groundwater Collection System Project, Bunker Hill, Idaho

Type: Construction RFP
NAICS Code: 237110, Water and Sewer Line and Related Structures Construction
FSC Code: Y1PD
Class Code: Y
Size: $36.5 million
Type of Set-A-Side: Unrestricted


The Seattle District is soliciting proposals for the Central Treatment Plant Upgrade and Groundwater Collection System Project, Bunker Hill, Idaho. The Bunker Hill Mining and Metallurgical Complex Superfund Site (Site) is located primarily in northern Idaho. The Site includes mining-contaminated areas in the Coeur d'Alene River corridor, adjacent floodplains, downstream water bodies, tributaries, and fill areas, as well as in the 21- square-mile Bunker Hill quote mark Box quote mark (designated as Operable Unit (OU 2) where historical ore-processing and smelting operations occurred. Records of Decisions issued by the U.S. Environmental Protection Agency (EPA) include remedial actions for collecting and treating select metals- contaminated source waters within OU 2. This particular remedial action project includes the following elements:

1. Upgrade and expansion of the existing Central Treatment Plant (CTP)

2. An effluent discharge pipeline from the expanded CTP to the South Fork Coeur d'Alene River (SFCDR)

3. A groundwater collection and conveyance system (GWCS) located primarily between the Central Impoundment Area (CIA) and Interstate 90 (I-90) to allow treatment of contaminated groundwater at the expanded CTP or routing to a storage pond.

4. Ongoing treatment of existing acid mine drainage (AMD) flows to current discharge standards during construction.

5. Operations and maintenance services prior to and during construction of the expanded CTP and GWCS, during startup and commissioning, and for a period of between 2 and 5 years following startup (yet to be determined) of the GWCS and the upgraded and expanded CTP.


The upgraded and expanded CTP will treat a combination of existing influent AMD from the Bunker Hill mine and new influent (metals-contaminated groundwater piped to the CTP using a lime precipitation high density sludge (HDS) process). The treatment plant will be upgraded and expanded to treat between 5,000 gallons per minute (gpm) and 8,000 gpm (yet to be determined). Major components of the upgrade include new reactors, thickener modifications, and addition of granular media filters. A new effluent discharge pipeline and outfall into the SFCDR will also be constructed. Updated and more stringent treatment standards are to be met following startup.

The GWCS for the new influent water source is anticipated to consist of a series of groundwater extraction wells located along the northern edge of the CIA, and a new below-grade cutoff wall located down-gradient from the extraction wells. Approximate dimensions of the below grade cutoff wall are anticipated to be 8,000 feet in length and 20-40 feet in depth to interface with the confining layer of the aquifer. In addition, associated piping to convey the contaminated groundwater either directly to the CTP or to an existing geomembrane-lined storage pond will also be required. The GWCS well field is anticipated to be controlled through a supervisory control and data acquisition (SCADA) system that will be constructed as part of this project and integrated with the updated treatment plant control system allowing centralized operation.

To be eligible for contract award a firm must be registered in the System for Award Management. Register via the SAM Internet site at SAM, https://www.sam.gov.

The North American Industry Classification System (NAICS) Code is 237110 with a size standard of $36.5 million. This requirement is unrestricted and proposals may be accepted from small and large businesses. For information concerning NAICS and SBA size standards, go to http://www.sba.gov

Pursuant to Federal Acquisition Regulations (FAR), the solicitation will be available for download no earlier than 15 days following the posting of this synopsis. Pursuant to FAR, the response date of the solicitation is no earlier than 30 days from the date of the solicitation release date. The proposal due date will be noted on the solicitation at the time of issue. There is no information available until the issue of the solicitation via the Internet. Register as an interested party at this synopsis site on www.fbo.gov to receive notification of solicitation issue, which will be no sooner than 31 Octoboer 2014

Issue of the solicitation will be in electronic format only. No disks or hard copy will be available. Follow the registration procedures at www.fbo.gov to receive notification of solicitation/amendment posting.