Description
The City of Tacoma’s Tacoma Power division is seeking a professional services firm to prepare annual downstream fish‑passage scientific reports for the Cowlitz Falls Dam and Lake Cushman Dam No 1 projects. The contractor will analyze PIT‑tag data, apply mark‑recapture (Cormack‑Jolly‑Seber) models, calculate fish‑system survival, collection efficiency, passage survival, and related metrics, and produce two detailed technical reports (one for each dam) that undergo two rounds of review. The three‑year contract has a ceiling of $467,000 with individual task‑order budgets ranging from $150k to $290k, and optional one‑year extensions. Key responsibilities include data analysis, model updating, report writing, and coordination with Tacoma Power staff and fisheries committees.
• Analyze ready‑to‑use PIT‑tag and environmental datasets for both dam sites.
• Apply CJS mark‑recapture models to estimate fish passage survival and efficiency.
• Deliver two comprehensive scientific reports, each reviewed by Tacoma Power and the respective fisheries committee.
• Manage project timelines across multiple task orders, adhering to a strict Aug 4, 2026 submission deadline.
• Provide detailed billing methods, equity certifications, and sustainability disclosures as required.