Vector Control Rotary Aerial Mosquito Control

Multnomah County Health Department's Vector Control program issued a Request for Intermediate Bids (RIB-209-2019) for rotary aerial application of larvicides to control mosquito populations across approximately 10,000 acres in Multnomah County, with potential extension to Columbia, Clark, and Cowlitz counties. The procurement seeks a specialized contractor to perform aerial pesticide application using specific larvicides including Vectobac G and Vectolex CG, with service line items ranging from 20 to 3,300 acres and options for bidding with or without a 2-person ground crew. Contractor qualifications are stringent, requiring at least 3 years of mosquito control experience, licensed pilots with agricultural and FAA certifications, and commitment to environmentally sustainable practices. The bid was released on 5/17/2019, with electronic submissions due by 6/4/2019 at 2:00 PM PDT. Key evaluation criteria include comprehensive insurance requirements, including $5 million in public liability and aircraft liability coverage, and additional pollution liability insurance.

There were no specific set-aside designations or restrictions on organizational types mentioned in the procurement documents. The county will provide support infrastructure including treatment area maps, loading crews, and material loading locations, and will be responsible for obtaining landowner permissions for treatment areas. The contract was ultimately awarded to Western Helicopter Services, Inc. for $373,600.00, indicating the total budget and potential contract value. The procurement emphasizes environmental sustainability, requiring contractors to optimize routes and reduce emissions during aerial larvicide application. The scope allows for potential expansion beyond the initial county boundaries, suggesting flexibility in future contract modifications and potential increased service areas.