Y--YOSE 215363 - Replace Tuolumne Meadows Wastewater Treatment Plant, at Yosemite National Park in California.

The contract solicitation number 140P2026R0001 issued by the Department of the Interior’s DSC Contracting Services Division seeks the replacement of the Tuolumne Meadows Wastewater Treatment Plant (WWTP) located within Yosemite National Park, California. This complex construction project involves the complete demolition of the existing wastewater treatment facility and the design, construction, and commissioning of a new, fully functional WWTP capable of meeting current environmental, regulatory, and operational standards. The contract duration spans from June 3, 2025, through June 30, 2033, with the work schedule limited to seasonal access windows annually from June 15 to October 15 to accommodate national park conditions. The scope of work covers all civil, structural, mechanical, and electrical components, including system integration, new process equipment installation, SCADA control systems, and comprehensive testing and commissioning phases. Key deliverables include as-built documentation, operation and maintenance manuals, and ensured compliance with applicable federal, state, and National Park Service regulations, with particular emphasis on water quality standards, safety, and sustainable design requirements. This solicitation is a full and open competitive Firm-Fixed-Price contract operating under NAICS code 237990 for heavy and civil engineering construction, having an estimated construction magnitude over $10 million. The contract includes multiple lump-sum line items covering demolition, site preparation, process buildings, electrical work, pumping stations, dewatering, commissioning, and optional work such as effluent pipeline replacement and pond restoration. The procurement follows a best value tradeoff evaluation process placing significant weight on non-price factors including technical approach, project experience, past performance, key personnel qualifications, management plans, and small business participation. Specialized contract clauses govern security clearances, prohibition of specified foreign-origin IT equipment, bonding requirements, handling of hazardous materials, packaging, and environmentally compliant shipping and storage of materials. The contractor must submit proposals electronically with strict adherence to format and deadlines, provide payment information for electronic funds transfers, and utilize the Invoice Processing Platform for billing. Contract administration emphasizes rigorous inspection and quality control requirements both offsite and onsite, with advance notifications and comprehensive testing obligations to ensure full performance in accordance with contract specifications. Key personnel are designated and substitutions rigorously managed to ensure project continuity and quality, with the contracting officer maintaining sole authority for contract modifications and final acceptance.