EPA Remedial Acquisition Framework: Environmental Services and Operations (ESO)
Active Master IDIQ Awarded
- Federal agency
-
Office of Land and Emergency Management
+ 1 more agency
- Awardees
- 21
- Task orders
- 269
- Obligated
- $186,655,085
Vehicle facts
- Opportunity
-
- SOLR11400003 Solicitation number
- Agencies
-
- Office of Land and Emergency Management Headquarters Offices, Environmental Protection Agency
- Office of Administration and Resource Management Headquarters Offices, Environmental Protection Agency
- Combined task order value
-
- $231,034,295 Current, with exercised options
- $290,770,229 Potential, with all options
- Last date to order 83% complete
- Also known as
-
- RAF
IDV award and task order details come from SAM.gov/FPDS.
About this vehicle
The Environmental Protection Agency Office of Land and Emergency Management awarded the Remedial Acquisition Framework: Environmental Services and Operations (ESO) Master IDIQ on August 1, 2018, for environmental services supporting remedial and removal work across seven functional areas, with ordering open through July 31, 2028. Set-aside use is split across the vehicle: 152 orders (57%) are total small business and 117 (43%) carry no set-aside, so the vehicle is not restricted at the vehicle level. Seventeen primes hold orders.
With 1 year 9 months of ordering authority remaining, the vehicle is active, and the most recent order was awarded September 29, 2026. Orders per year run 22 in 2022, 32 in 2023, 38 in 2024, 23 in 2025, and 24 in 2026. Obligations total $186.7 million against $290.8 million in combined potential value, or 64%.
Recent orders buy oversight and technical support for Superfund and federal facility sites: potentially responsible party and remedial action oversight, remedial investigation and feasibility study support, long-term response action support, five-year reviews, groundwater operation and maintenance, targeted brownfields assessments, PFAS sampling, and data management. Pricing is predominantly time-and-materials and firm fixed price, with some cost-plus fixed fee orders.
Techlaw Consultants Inc. (57 orders, $65.4 million combined potential value) and EA Engineering, Science, And Technology, Inc., PBC (50 orders, $52 million) lead on order count, followed by OCH JV (46 orders, $50.4 million) and Heliotech (36 orders, $34.5 million). The top five primes by order count hold 75% of orders, with a wider field of smaller firms beneath them.
Environmental Protection Agency Region 5 places the most orders (83), followed by Regions 3, 9, and 7 with 37, 37, and 33 orders. The top five customers account for 78% of orders. Region 9 carries the highest combined potential value among them at $43.8 million.
The portfolio does not state a typical task-order value range. Notable large orders include the Wyckoff/Eagle Harbor Superfund Site Remedial Activities Technical Support order, with a $13,202,422.05 ceiling, and the FFRRO National General Site Support order, with a $10,542,416.74 ceiling.
Recent awards span EPA Regions 2, 6, 7, 9, and 10, including work at Guam's Ordot Landfill.
Description
The work areas under this ESO contract are separated into seven functional areas (tasks): 1. General Requirements; 2. Field Work and Analytical Support; 3. EPA-lead Remedy Operations including Long Term Response Action (LTRA); 4. Preliminary Assessment/Site Inspection; 5. Oversight or Oversight Support; 6. EPA-lead Remedial Action or EPA-lead Removal Action Implementation Support; 7. Other Technical Assistance
IDV awards
Show all 21
Latest task orders
Show 15 more
Latest 25 of 269 listed here. See the rest on GovTribe.
Pools and SINs
| Pool or SIN | IDV awards | Ceiling | Obligated |
|---|---|---|---|
| Region 1 - 10 | 5 | $850,000,000 | $81,021,513 |
| Region 1 - 3 | 4 | $320,000,000 | $28,026,311 |
| Region 4 - 7 | 4 | $275,000,000 | $6,813,305 |
| Region 8 - 10 | 4 | $255,000,000 | $7,236,318 |
| Region 4 - 10 | 3 | $530,000,000 | $61,437,644 |
| Region 1 - 7 | 1 | $595,000,000 | $2,119,995 |
Top awardees by obligations
| Rank | Awardee | Obligated | Share |
|---|---|---|---|
| 1 | OCH JV | $41,279,462 | 22% |
| 2 | EA Engineering, Science, And Technology, Inc., PBC | $38,974,278 | 21% |
| 3 | Techlaw Consultants Inc. | $22,453,049 | 12% |
| 4 | Heliotech | $17,615,875 | 9% |
| 5 | Nobis Engineering, Inc. | $15,232,603 | 8% |
| 6 | Hydrogeologic, Inc. | $11,488,739 | 6% |
| 7 | Pars Environmental Inc. | $10,732,559 | 6% |
| 8 | Environmental Restoration LLC | $6,196,612 | 3% |
| 9 | Aeec, LLC | $5,372,651 | 3% |
| 10 | Toeroek Associates, Inc. | $4,060,682 | 2% |
Top funding agencies by obligations
| Rank | Funding agency | Obligated | Share |
|---|---|---|---|
| 1 | Environmental Protection Agency | $186,655,085 | 100% |
Obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | -$77,657 |
| FY2026 | $22,415,680 |
| FY2025 | $25,141,461 |
| FY2024 | $57,058,276 |
| FY2023 | $27,702,058 |
| FY2022 | $21,247,916 |
| FY2021 | $19,542,914 |
| FY2020 | $13,597,252 |
| FY2019 | $1,873,078 |
Quick answers
What is the ESO contract vehicle?
EPA Remedial Acquisition Framework: Environmental Services and Operations (ESO) is an indefinite delivery, indefinite quantity (IDIQ) contract vehicle run by Office of Land and Emergency Management (Headquarters Offices) and Office of Administration and Resource Management (Headquarters Offices), awarded on August 1, 2018.
Which companies hold ESO?
21 companies hold ESO's IDV awards, one each. The latest went to Hydrogeologic, Inc. on August 1, 2018. The awardees whose task orders obligated the most are OCH JV, EA Engineering, Science, And Technology, Inc., PBC and Techlaw Consultants Inc.
How much has been spent through ESO?
269 task orders have been placed under ESO, obligating $186,655,085. Their combined current value, with exercised options, is $231,034,295.
Which agencies use ESO the most?
The departments whose task orders under ESO obligated the most are Environmental Protection Agency ($186,655,085).
How much was obligated through ESO in fiscal year 2025?
Task orders under ESO obligated $25,141,461 in fiscal year 2025.
What pools does ESO have?
ESO has 6 pools, lots and SINs, including Region 1 - 10, Region 1 - 3, Region 4 - 7 and Region 8 - 10.
On GovTribe
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