Comprehensive Everglades Restoration Plan Relief Wells Contract A, Florida

The U.S. Army Corps of Engineers-Jacksonville District (Corps) will hold a virtual Industry Day for the Comprehensive Everglades Restoration Plan (CERP) Indian River Lagoon South (IRL-S) C-44 Reservoir and Stormwater Treatment Area (C-44 RSTA) Seepage Management Feature - Relief Wells Contract A, Martin County, Florida on Wednesday,

1 April 2026. The Industry Day will consist of Opening Remarks, Technical Presentation, Procurement Strategy, and Small Business Opportunities. All interested Offerors are required to access SAM.gov for future updates. This announcement seeks information from industry and will only be used for preliminary planning purposes. NOTE: All interested parties to include prospective prime contractors, subcontractors and suppliers are invited to attend.

This is not a solicitation for proposals and no contract shall be awarded from this notice. However, DRAFT SPECIFICATIONS have been provided for reference as

attachments under this notice. Project Description: The work is located on approximately 12,000 acres of land in Martin County, Florida directly north of Citrus Boulevard and the C-44 Canal (also known as the St. Lucie Canal), halfway between Lake Okeechobee and the Atlantic Ocean. For purposes of this construction contract, the anticipated location of site activities will occur throughout the current C-44 Reservoir site adjacent to the perimeter canal. The work consists of constructing groundwater pressure relief wells adjacent to the C-44 reservoir site. The wells will be constructed by typical means of water well construction and typical of USACE relief well construction, as prescribed in EM 1110-2-1914 Design, Construction and Maintenance of Relief Wells. The site where the relief wells will be constructed is relatively flat and grass covered with nearby access from existing gravel surfaced roads. There is an existing canal approximately 35 feet from the well locations and the groundwater level varies with reservoir stage and is generally higher than the canal water level. The canal water level varies (normally approximately EL 18.5 ft) and can increase up to 2 ft above normal stage during project operations. The reservoir pool varies and can be expected to be between EL 29.0 ft and EL 36 ft (3 ft to 10 ft pool) during the

period of performance. The work generally consists of: • Construction of approximately 126 pre-designed relief wells at the prescribed locations. • Documenting the construction, development, and pump testing of all wells. • Well construction will require managing borehole wall stability for a variety of subsurface conditions that may consist of surficial clay and silty sands, very loose uniform fine sands, dense sands having varying degrees of cementation, limestone/sandstone, and sand to cobble size shells. Groundwater conditions are likely to be slightly artesian at the well locations. • Construction of surface protection, access, and discharge features for each relief well into the adjacent canal. SPECIFIC PROJECT CHALLENGES: The work includes construction of 126 relief wells approximately 60 ft deep. The relief well will have a 10-inch diameter stainless steel riser and high flow screen, constructed in an 18 to 24-inch diameter borehole. The anulus between the borehole and riser will be backfilled with a uniform and non-calcareous filter media commonly used in the water well industry and selected for compatibility with the encountered subsurface materials. Above the screen and filter media, the borehole will be sealed with bentonite and grout. All backfill materials will be placed by tremie method. The work also includes the construction of surface protection, access, and discharge features for each relief well. The surface and protection feature will be approximately 4 ft in diameter and will consist of a standard Florida Department of Transportation Manhole or similar structure. The discharge features will consist of a 12-inch pipe connected to the surface protection and access feature that will terminate at the canal water level within a concrete headwall. Wells must be tested and accepted no more than 5 days after construction. Each outfall construction must be completed no more than 14 days after excavation begins. Outfall construction must be completed no more than 60 days after well is completed. The anticipated

period of performance for this project is 1060 calendar days from receipt of Notice to Proceed (NTP), and commencement of work would begin within 60 calendar days of receipt of the NTP. The applicable North American Industry System (NAICS) code assigned to this procurement is 237990, Other Heavy and Civil Engineering Construction. The Small Business Size Standard for this project is $45.0 million. EVENT DETAILS: Presentation A presentation will be provided from 9:00 am – 10:00 am, EDT. The presentation will provide detailed information for the upcoming project of the Comprehensive Everglades Restoration Plan (CERP) Indian River Lagoon South (IRL-S) C-44 Reservoir And Stormwater Treatment Area (C-44 RSTA) Seepage Management Feature - Relief Wells Contract A, Martin County, Florida.The focus will be on