Ecological Restoration Services

The Riverside County Regional Park & Open‑Space District is soliciting qualified vendors to provide a comprehensive five‑year ecological restoration program across three river‑related project areas. The work includes invasive species removal (Arundo donax, Tamarix, castor bean, etc.) using mechanical and chemical methods, ongoing maintenance, on‑site biological monitoring, seed collection, propagation of native riparian species, and installation/maintenance of container‑grown plants. All activities must comply with CDFW 1602 permits and district grant requirements, and native plant material must be sourced locally. • Duration: 5 years (Year 1 – invasive removal; Years 2‑5 – maintenance, monitoring, propagation, and planting) • Target areas: Santa Ana River Project Area, Hidden Valley Wildlife Area, Santa Ana River east of Van Buren • Required services: weed control, habitat monitoring, seed/plant propagation, container nursery management, compliance reporting • Mandatory pre‑bid conference on July 8 2026 (attendance required) • Submission deadline: August 20 2026 (1:30 PM PST) • Contact: Tanya Sida, Procurement Contract Specialist (Riverside County)