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  5. ›Yellowstone County MS4 Permit Compliance Assistance

Awarded contract·Yellowstone County·Montana

Yellowstone County MS4 Permit Compliance Assistance

$350kSingle Award
Contract source

Description

This solicitation seeks a qualified consulting firm to assist Yellowstone County in achieving compliance with its MS4 (Municipal Separate Storm‑Water System) permit. The consultant will review the existing MS4 Storm‑Water Management Program, update it for the 2022‑2027 General Permit period, develop and implement Minimum Control Measures (public engagement, illicit discharge detection, construction site review, and maintenance operations), complete storm‑water infrastructure mapping, draft necessary ordinances and procedures, and create public‑facing website content and internal operational guidelines. The effort includes delivering a draft study by July 31 2026 and completing all priority tasks by August 28 2026, with the possibility of additional task orders later in 2026. The County will evaluate proposals based on qualifications, staff expertise, resources, methodology, and overall approach. • Update and expand the County’s MS4 Storm‑Water Management Program covering five Minimum Control Measures. • Produce GIS‑based infrastructure maps, outfall inventories, and risk‑based prioritization. • Develop regulatory documents, inspection protocols, public outreach tools, and a dedicated website “toolbox.”

Attached files

Key dates

Ends
8/28/2026

Last updated

Details

Award type
Single Award
Procurement
Full and Open Competition
Industry
Environmental Services
NAICS
541620

Contract value

$350,000

The RFP does not disclose a budget ceiling. Comparable MS4 compliance contracts for medium‑sized counties typically range between $200,000 and $500,000, depending on the depth of GIS work, number of staff hours, and deliverables such as website development and public outreach. Given the extensive deliverables (draft study, full program update, GIS mapping, ordinance drafting, and website creation) and a tight timeline (approximately three months from award to final delivery), a reasonable midpoint estimate would be around $350,000. This figure assumes a professional‑services rate of $150‑$200 per hour for a team of senior engineers, GIS specialists, and outreach staff, plus incidental costs for printing, software licenses, and travel.

AI estimate from the award documents

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