Chumbley & Cottonwood Island Mitigation Site Maintenance EDWOSB Set-Aside SATOC

SOL #: W9127N26QA064Combined Synopsis/Solicitation

Overview

Buyer

DEPT OF DEFENSE
Dept Of The Army
W071 ENDIST PORTLAND
PORTLAND, OR, 97204-3495, United States

Place of Performance

Kelso, WA

NAICS

Landscaping Services (561730)

PSC

Landscaping/Groundskeeping Services (S208)

Set Aside

Economically Disadvantaged WOSB (EDWOSB) Program Set-Aside (FAR 19.15) (EDWOSB)

Timeline

1
Posted
May 4, 2026
2
Submission Deadline
May 18, 2026, 9:00 PM

Qualification Details

Fit reasons
  • NAICS alignment with historical contract wins in similar service areas.
  • Scope strongly matches core technical capabilities and delivery model.
Risks
  • Past performance thresholds may require one additional teaming partner.
  • Potential clarification needed on staffing minimums before bid/no-bid.
Next steps

Validate eligibility requirements, assign capture owner, and schedule partner outreach to confirm teaming strategy before submission planning.

Quick Summary

The US Army Corps of Engineers – Portland District (USACE) is soliciting proposals for riparian planting maintenance services at the Chumbley and Cottonwood Island wildlife mitigation sites in Cowlitz County, Washington. This is a Firm Fixed-Price Single Award Task Order Contract (SATOC) with a five-year ordering period, set aside for Economically Disadvantaged Women-Owned Small Businesses (EDWOSB). The total contract ceiling is $3,500,000. A Seed Project Task Order for 2026 will be awarded concurrently with the SATOC. Proposals are due May 18, 2026, at 2:00 PM Pacific.

Scope of Work

The contractor will provide non-personal services for maintaining existing riparian plantings. Key tasks include:

  • Mobilization and Demobilization to both Chumbley and Cottonwood Island sites.
  • Manual removal of invasive vegetation (e.g., yellow flag iris, poison hemlock, Himalayan blackberry, tansy ragwort).
  • Mowing and weed whacking of invasive vegetation, primarily reed canary grass, along site boundaries and access paths, while protecting native plantings.
  • Herbicide application using approved chemicals (glyphosate, triclopyr) following specific guidelines.
  • Re-seeding areas where invasive vegetation has been killed to establish native grass groundcover.
  • Riparian mitigation site vegetation and wildlife assessments, including surveys, photo documentation, stem density measurements, and invasive/native species cover assessment.

For 2026, the Seed Project Task Order specifies approximately 10 acres of manual invasive removal at Chumbley and 45 acres at Cottonwood Island, along with significant mowing, herbicide application, and assessments. Re-seeding is required at Cottonwood Island for 2026.

Contract & Timeline

  • Contract Type: Firm Fixed-Price Single Award Task Order Contract (SATOC)
  • Period of Performance: Five (5) years ordering period, from June 1, 2026, to May 31, 2031.
  • Ceiling: $3,500,000.00 cumulative.
  • Set-Aside: Economically Disadvantaged Women-Owned Small Business (EDWOSB).
  • NAICS Code: 561730 (Landscaping Services), Size Standard: $9.5M.
  • Place of Performance: Kelso, Cowlitz County, WA.
  • Environmental Work Window (Cottonwood Island): June 15 to October 31 (no work before June 15 due to heron rookery).
  • Questions Due: May 13, 2026, 5:00 PM Pacific.
  • Proposal Due: May 18, 2026, 2:00 PM Pacific.
  • Published Date: May 4, 2026.

Evaluation

Proposals will be evaluated based on Price, Past Performance, Technical Approach, Applicable Certifications and Licenses, and Subcontracting Information.

Special Requirements & Notes

  • Offerors must possess an Applicator License (commercial application with aquatic endorsement).
  • Compliance with USACE Safety and Health Requirements Manual EM-385-1-1 is mandatory, including for boat transportation to Cottonwood Island.
  • A Quality Control Plan (QCP) and Job Safety Analysis (JSA) are required.
  • Subcontracting Information must be provided, including signed Letters of Commitment from subcontractors, if applicable.
  • Compliance with Department of Labor Wage Determination No. 2015-5529, Revision 28 for Cowlitz County, WA, is required for labor costs.
  • Proposals must be submitted via email to Lara.A.Krauss@usace.army.mil and Mieko.G.Alley@usace.army.mil.
  • The solicitation incorporates FAR provisions and clauses by reference; full text is available at www.acquisition.gov.

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Version 1Viewing
Combined Synopsis/Solicitation
Posted: May 4, 2026
Chumbley & Cottonwood Island Mitigation Site Maintenance EDWOSB Set-Aside SATOC | GovScope