Twin Landfill Corporation

Twin Landfill Corporation, operating as Twin Enviro through its Apex Twin Enviro Services Division, is a veteran-owned small business prime contractor headquartered in Steamboat Springs, Colorado, that delivers waste collection, transportation, disposal, sludge management, and portable latrine services to federal installations across 12 agencies, predominantly under full-and-open and total small business set-aside designations. The company operates 100% as a prime contractor with no subcontractor footprint, competing across solid waste collection (NAICS 562111, PSC S205) and hazardous waste treatment and disposal (NAICS 562211).

Twin Enviro's federal customer base is highly concentrated, with the Army Installation Management Command Southwest Region dominating both award count and dollar value: 33 awards worth $6.8 million combined potential value (73% of the top-five customer cluster and 68% of total portfolio value). The Department of Interior Bureau of Reclamation anchors the second-largest commitment at $1.9 million across six awards, including a $751,549 firm fixed-price definitive contract awarded April 9, 2024, for sludge management services (removal, storage, transportation, and disposal of metal hydroxide sludge and other hazardous and non-hazardous industrial waste) at the Leadville Mine Drainage Tunnel Water Treatment Plant through May 31, 2029. The Department of Justice Bureau of Prisons Federal Correctional Complex Florence has placed 18 smaller purchase orders worth $252 thousand combined, with monthly waste and landfill services contracts in the $2,000–$31,000 range. The Department of Agriculture Forest Service Region 2 (Rocky Mountain Region) awarded a $90,482 small business set-aside purchase order in July 2023 for trash service at Hahns Peak Bears Ears Road, currently in option year 3 exercise through December 31, 2027.

Twin Enviro's primary vehicle portfolio centers on Army-issued indefinite delivery contracts: Indefinite Delivery Contract W911RZ-24-D-0002, a single-award $1,163,000 IDC with a base period plus four option years for comprehensive waste management services at Pinon Canyon Maneuver Site (Model, Colorado), has issued three delivery orders totaling $351 thousand in combined potential value as of March 2026. Older Army IDCs (W911RZ-13-D-0002, W911RZ-18-D-0005, and W911RZ-15-D-0004) collectively account for 28 delivery orders worth roughly $696 thousand. The majority of Twin Enviro's 99 awards fall into solid waste collection (36 awards) and other nonhazardous waste treatment and disposal (17 awards), with 64 awards coded to housekeeping/trash collection under PSC.

Recent award activity has slowed: 8 awards in 2024, 2 in 2025, and 1 in 2026 (year-to-date). Two awards with ultimate completion dates in the next twenty-four months carry combined potential value of $281 thousand, representing modest recompete exposure relative to the portfolio's $9.9 million total ceiling. Service Contract Inventory data is minimal and non-indicative — only four SCI-reportable records across FY2022–FY2024, with $39 thousand invoiced in FY2022 and zero reported in subsequent years — reflecting that the majority of Twin Enviro's federal work falls below the $150,000 SCI threshold or is classified as goods/micro-purchases rather than service contracts. The vendor operates no named subcontractors and generates no sub-hours, indicating a vertically integrated delivery model across all awarded work.

Waste disposal services

Tank cleaning services

portable toilets

Mobile showers