Construction of stormwater improvements in the Lake Kanasatka Watershed in Moultonborough, NH.

This is an Invitation to Bid (IFB) procurement issued jointly by the Lake Kanasatka Watershed Association (LKWA) and the New Hampshire Department of Environmental Services (NHDES) for construction of stormwater improvements in Moultonborough, New Hampshire, located in Cheshire County. The project scope includes construction of drainage and road improvements at the intersection of Burton Road and Foster Drive designed to reduce phosphorus discharge and stormwater runoff into Lake Kanasatka. Specific deliverables encompass culvert replacement, road paving with permeable materials, sediment forebays, infiltration chambers, catch basins, and establishment of native vegetation at multiple sites. Contractors must demonstrate past performance on at least two relevant projects completed within the last ten years involving environmental regulations, stormwater management structures, erosion control, and native plantings. The evaluation will award the contract to the responsible bidder whose proposal best serves the project's interests based on the sealed bid submission. Key dates include a voluntary site evaluation scheduled for Friday, May 15, 2026, from 9:00 AM to 12:00 Noon, with sealed bid proposals due by 4:00 PM on Friday, June 19, 2026, at LKWA's mailing address in Center Harbor, New Hampshire. Construction must commence on or after September 14, 2026, and be completed by November 20, 2026, with project documents available upon request from Scott Wallace at LKWA319ProjectMgt@gmail.com.

The procurement does not identify specific set-asides or restrictions limiting participation to disadvantaged enterprises or particular organization types. Contractors must maintain comprehensive public liability insurance of $2,000,000 for bodily injury and $500,000 for property damage per incident, along with statutory worker's compensation coverage, and must warrant all materials and work for a minimum of one year from project completion. The project is partially funded through a grant from NHDES utilizing Clean Water Act Section 319 funds from the U.S. Environmental Protection Agency (EPA), requiring full compliance with federal regulations under Title 40 CFR parts 7 and 12, and Title 2 CFR 200. The Engineer, Horsley Witten Group, has calculated a complete lump sum estimate of $137,000, including contingencies, and contractors must submit lump sum proposals with payment structured in four milestones: 10 percent upon contract execution, 30 percent upon Engineer approval of major component specifications, 30 percent upon construction commencement, and 30 percent upon final completion and acceptance. No incumbent vendors or existing contractors are identified in the procurement documents, indicating this is a new initiative rather than a renewal of previous services.