Septic pumping services at flag

The National Park Service Intermountain Region is soliciting firm-fixed-price commercial services for routine and as-needed septic tank pumping at Sunset Crater National Monument and Wupatki National Monument in Arizona. The contract will operate on a one-year base period plus four one-year option periods, running from April 1, 2026 through March 31, 2031, with routine pumping required a minimum of twice annually. The contractor must provide all labor, equipment, vehicles, materials, permits, and disposal services in compliance with Arizona Department of Environmental Quality and EPA regulations, including proof of disposal at ADEQ-approved facilities within five business days of each pumping event. Evaluation will be based on price (submitted as a unit price per 1,000 gallons on an all-inclusive basis), technical capability, and prior experience demonstrating successful completion of similar projects. The deadline for submitting questions was March 11, 2026, and the revised proposal due date is April 2, 2026, with award anticipated for April 1, 2026.

This solicitation is designated as a total small business set-aside for Women-Owned Small Businesses, with a NAICS code of 562991 (Septic Tank and Related Services) and a size standard of $9 million. No incumbent contractor is identified in the solicitation documents. The estimated annual volume is approximately 70,000 gallons of sewage, with total septic tank system capacities of 18,000 gallons at Sunset Crater and 16,000 gallons at Wupatki. Performance will take place at the two monuments in the Flagstaff area of Arizona, with contractors required to coordinate with park personnel at least 48 hours prior to arrival, Monday through Thursday, and to comply with Service Contract Act labor standards including prevailing wage rates for Coconino County, Arizona. Contracting Officer Jessica Owens and Park Point of Contact Chris Brothers serve as the primary government contacts for this requirement.