Chic 240631 WTP and maintenance building

The National Park Service is soliciting proposals for the design-build construction of a new water treatment plant and maintenance building at Chickasaw National Recreation Area in Sulphur, Oklahoma, under solicitation 140P2025R0014. This two-phase competitive procurement requires qualified teams consisting of both an Architect-Engineer and General Contractor to submit comprehensive qualifications including Standard Form 330, 3-5 past performance project examples demonstrating similar size and complexity, and proof of bonding capacity of at least $15 million for a single project. The evaluation will focus on technical qualifications, specialized experience, and past performance, with teams that have previously worked together receiving more favorable ratings. Up to three qualified offerors will be selected after Phase 1 to submit detailed Phase 2 proposals including concept designs, with unsuccessful Phase 2 offerors receiving a $25,000 stipend. The current proposal due date is September 29, 2025, at 1:00 PM Mountain Time, following several amendments that extended deadlines and provided additional clarification through questions and answers documents.

This opportunity is set aside exclusively for small businesses under NAICS code 236220 (Commercial and Institutional Building Construction) with a total estimated construction value exceeding $10 million. The water treatment plant will replace an existing 1970s facility, increasing daily potable water production capacity from 25,000 to 43,000 gallons per day using ultrafiltration membrane technology, while the new 3,490 square-foot maintenance building will replace structures damaged by a 2024 tornado. The contract will be structured as firm-fixed-price with base line items and multiple optional line items for additional water treatment and infrastructure improvements. The total performance period is 810 calendar days encompassing both design and construction phases, with a planned Notice to Proceed date of January 5, 2026. No incumbent contractors are identified in the documentation, and the project will be performed at the Chickasaw National Recreation Area in Sulphur, Oklahoma.