Stormwater Management Services

The Town of Herndon, Virginia is requesting proposals for Stormwater Management Program Services under RFP #27-02, with proposals due September 22, 2026 at 11:00 a.m. The scope spans planning, feasibility studies, assessment, design, permitting, and construction support for stream restoration, streambank stabilization, channel rehabilitation, riparian buffer restoration, floodplain reconnection, erosion control, green infrastructure, and low-impact development projects. Services include hydrologic and hydraulic analyses, geomorphic assessments, environmental permitting, construction administration, and post-construction monitoring. The Town specifically seeks compliance support for Virginia Pollutant Discharge Elimination System MS4 permit regulations, including development and maintenance of MS4 program plans and annual reports, ordinance updates, stormwater system studies, GIS database development and management, BMP facility inspections, water quality monitoring, development plan reviews, public outreach, and regional coordination.

Offerors must be qualified licensed consulting firms. Evidence of relevant experience on similar projects within the past five years, references from at least three prior clients, and resumes of key personnel are required.

The contract term is one year with three optional one-year renewal terms. Pricing will be negotiated on a task-by-task basis with fair and reasonable hourly rates. The sum of all task orders performed in one contract year shall not exceed $10,000,000, with no single task order exceeding $2,500,000.

Evaluation uses a two-phase process. Phase 1 scores written proposals on Firm Qualification and Relevant Experience (30%), Qualification and Relevant Experience of Key Personnel (20%), Expertise in regulatory compliance and community engagement (15%), Past Projects and Program Performance (10%), Quality Assurance/Quality Control (10%), Location of Firm's Branch and Key Staff (5%), and Overall Quality and Completeness of Proposal (5%). Phase 2 may include oral presentations scored on Presentation/Preparedness (50%), Project Team (25%), and Questions (25%). Proposals must not exceed 60 single-sided pages or 30 double-sided pages, excluding cover materials and tabs.

A non-mandatory pre-proposal conference is scheduled for September 1, 2026 at 1:30 p.m. at the Herndon Municipal Center. Questions are due September 3, 2026 at 10:00 a.m. Submissions must be made electronically through the Town's eProcurement Portal.