Remedial Acquisition Framework (RAF), Design and Engineering Services (DES)
Awarded Limited / Sole Source Justification Posted
- Solicitation number
- 68HE0926R0025
- Agency
-
EPA Region 9
Regional Offices, Environmental Protection Agency
- Set-aside
- No set-aside
Opportunity facts
- Contract number
- 68HE0318D0005-68HE0926F0077 Federal contract award
- NAICS code
- 541330 Engineering Services
- Points of contact
Notice details come from SAM.gov. Updated .
About this opportunity
EPA Region 9 has awarded a sole-source task order to EA Engineering Science and Technology for design and engineering services oversight of residential soil remediation at the Sulphur Bank Mercury Mine Superfund Site, with a task order value of $650,000 under RAF Contract 68HE0318D0005.
The justification cites RFO 16.507(b)(2) and rests on EA's status as engineer of record responsible for the 100% design package delivered in October 2025. EPA determined that design modifications, field condition evaluations, and certification of changes require EA's expertise and cannot be efficiently transferred to another contractor without incurring unacceptable delays of months and additional costs exceeding $200,000. The work encompasses oversight of field implementation, review of contractor requests for information, and documentation of design deviations. Site contamination poses uncontrolled exposure risks to residents exceeding EPA's acceptable risk management range, creating urgency.
The base period runs 12 months (June 10, 2026 through June 9, 2027) with a 6-month option period (June 10, 2027 through December 10, 2027). The task order is cost-reimbursement with labor rates based on existing task order 68HE0924F0079 rates and ceiling rates under the RAF contract. Place of performance is Clearlake, California. Market research included monitoring SF330 submissions and searches of SAM.gov, CPARS, and internet sources for alternative contractors with experience in culturally sensitive soils and National Historic Preservation Act compliance. The Contracting Officer certified the justification on May 5, 2026.
Notice text
RAF DES Task Order for Sulphur Bank Mercury Mine OU1 Residential RD Oversight Sole Source
Awarded contract 68HE0318D0005 to unknown vendor for unknown amount on 2026-07-22.
Files
| File | Type | Posted |
|---|---|---|
| JETFO_Sulphur_Bank_Residential_Overisght_EPA_R9_RAF_DES_050426_(1)_1.pdf |
Notice history
| Notice | Type | Posted |
|---|---|---|
| This notice | Limited / Sole Source Justification | |
| Remedial Acquisition Framework (RAF), Design and E | Award Notice |
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