DETO - Flush & Clean Septic System

The National Park Service Intermountain Region seeks flush and clean services for septic systems at Devils Tower National Monument in Wyoming, with proposals due June 22, 2026 and questions due June 1, 2026. This procurement is a Total Small Business set-aside under FAR Part 12, with NAICS code 562991 and a small business size standard of $9 million.

Work encompasses targeted flushing and cleaning of nine septic tanks ranging from 1,000 to 12,000 gallons, three 1,500-gallon dosing tanks, approximately 4,000 linear feet of septic collection piping, and drain field distribution headers throughout the monument. The contractor must provide all labor, equipment, materials, transportation, and waste disposal services, including septic tank pumping and interior cleaning, dosing tank flushing, collection line high-pressure jetting, and spot flushing of drain field laterals. Performance runs from July 1, 2026 through November 30, 2026 on a firm fixed-price basis.

Deliverables include a proposed work schedule, septage disposal documentation, and a service summary prior to completion. The Service Contract Act wage determination applies, requiring fringe benefits including health and welfare, vacation, and holiday pay. Evaluation considers price, technical qualifications, and prior experience with similar projects over the past five years; the government evaluates quotes in groups of three starting with the lowest-priced quotes and awards to the offeror providing best value. Proposals must include completed SF 1449, price schedule, capabilities statement, three prior experience references, and all required certifications and representations, submitted electronically to Jessica_Owens@ios.doi.gov. A site visit is available upon request by contacting John Hinrichs at 307-290-2363 or john_hinrichs@nps.gov. Amendment 1, issued May 20, 2026, corrected the questions due date; acknowledgment of this amendment is required with proposal submission.