Irwin Septic Tank Cleaning, Plumbing & Repair LLC

Irwin Septic Tank Cleaning, Plumbing & Repair LLC is a sole proprietorship based in Oklahoma City, Oklahoma, that specializes in portable restroom waste management and latrine maintenance services for federal defense clients. The company is registered as a self-certified small disadvantaged business and maintains active SAM.gov registration through October 2026. As a dedicated sanitation service provider, Irwin Septic Tank Cleaning focuses exclusively on specialized waste management and restroom servicing tailored to military installation requirements, particularly supporting the operational readiness of Air Force personnel and equipment through comprehensive latrine and restroom trailer maintenance.

Irwin Septic Tank Cleaning has provided restroom trailer and aircraft latrine services to the Oklahoma City Air Logistics Complex at Tinker Air Force Base through multiple firm fixed-price BPA calls and delivery orders since August 2024. The company's contract work has encompassed latrine cleaning services, restroom trailer waste servicing, and aircraft latrine maintenance across various service categories. Notable individual awards include a $35,875 BPA call (August 2024, completed August 2025), a $15,525 BPA call (February 2025, completed December 2025), a $10,300 BPA call (May 2025, completed May 2025), a $21,200 BPA call (July 2025, completed August 2025), and a $41,925 delivery order (September 2025, due for completion September 2026). All of these awards were issued by the Oklahoma City Air Logistics Complex without small business set-aside designations except for the February and August 2024 BPA calls, which carried total small business set-aside designations. The cumulative value of these individual contract calls totals approximately $124,825, demonstrating consistent utilization of the contractor's specialized capabilities for routine sanitation operations at the installation.

Irwin Septic Tank Cleaning holds two active Indefinite Delivery Vehicles with the Oklahoma City Air Logistics Complex. The first is a $1.5 million multiple-award Blanket Purchase Agreement awarded April 8, 2024, with performance extending through January 29, 2029, which provides for portable restroom trailer waste pumping services including biweekly pumping of 450-gallon waste tanks, chemical treatment, and tri-annual pressure washing. The second is a $1.291 million single-award Indefinite Delivery Contract awarded September 22, 2025, with completion targeted for March 21, 2031, designated for total small business participation, which procures comprehensive MROTC restroom trailer and aircraft latrine services. Under this more recent IDV, the contractor provides maintenance and repair services for a five-stall restroom trailer with 450-gallon capacity as well as aircraft latrine and urinal servicing for multiple military aircraft platforms including C-130, KC-10, KC-135, E-3A, B-1, B-52, and KC-46A variants. Services include biweekly pumping and deodorizer treatments, chemical applications, tri-annual pressure washing, and aircraft-specific latrine maintenance with adherence to Air Force technical orders and application of mandated cleaning compounds and anti-freeze materials. Both IDVs are funded by the Oklahoma City Air Logistics Complex under the Defense Department and represent the core vehicles through which Irwin Septic Tank Cleaning provides sustained sanitation support to Tinker Air Force Base operations.

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