Moja septic and vault pumping 32 units

The National Park Service Pacific West Region is seeking a contractor to provide septic and vault toilet pumping services at Mojave National Preserve in California. The contract requires removing and disposing of human waste from 32 septic and vault toilet units located across 7 different sites within the preserve, with toilet capacities ranging from 500 to 4,500 gallons. Contractors must possess appropriate credentials to transport and dispose of human waste in San Bernardino County, California, and maintain clean pumping vehicles to prevent introducing non-native seeds into the preserve. The government will evaluate proposals based on technical approach, past performance, and price through a comparative evaluation process. The original solicitation deadline of September 5, 2025, has been extended to September 3, 2025, following two amendments that provided a corrected Statement of Work and answers to contractor questions.

This opportunity is designated as a 100% Total Small Business Set Aside under NAICS code 562111 with a size standard of $47.0 million. The solicitation represents a new requirement rather than a contract renewal, with no incumbent contractor identified. The contract structure includes a base year from September 17, 2025, to September 16, 2026, with four optional one-year extension periods through September 16, 2030, potentially creating a five-year total contract duration. Services will be performed at various locations throughout Mojave National Preserve, including Kelso Dunes, Hole in the Wall, Rock House, Zzyzx, and other park facilities. The contractor must provide 24-48 hour response times for service calls and is expected to fully utilize pumping truck capacity while removing any additional trash encountered during the pumping process.