Landscape Services Ecological Restoration and Invasive Species for Parks and Recreation

Pierce County, Washington is soliciting proposals for on-call landscape maintenance services focused on ecological restoration and invasive species management at county-owned properties, with proposals due September 30, 2026 at 4:00 p.m. under RFP 2026-RFP-207.

Minimum qualifications include five years of restoration experience, a valid Washington State Unique Business Identifier (UBI) number, federal tax identification number, proper licensing and endorsements for aquatic herbicide application, and technical knowledge of native and invasive plant species. All work must comply with Washington's prevailing wage requirements under chapter 39.12 RCW, with contractors submitting annual intents and affidavits documenting prevailing wages paid.

The scope encompasses crew leadership capable of identifying invasive species versus native plants, site preparation for native plant installation, manual and mechanical weed control, invasive species inspections and recommendations, erosion control best management practices, seeding and mulching, bareroot and container plant installation, herbicide application in wetland and riparian locations, and mechanical mowing while protecting native plants. Sites range from 1,000 to 217,800 square feet or larger, primarily in highly regulated wetlands and riparian restoration areas throughout the county. Contractors must furnish all labor, tools, equipment, materials, and overhead. The pricing proposal requires submission of fully burdened labor rates for landscape maintenance, landscape construction and planting labor, landscape operator labor, and a contractor's percentage markup on materials.

The anticipated contract value is $500,000 over an initial 24-month term with three additional one-year renewal options. Pierce County reserves the right to award one or multiple contracts. Evaluation criteria weight pricing at 50 points, qualifications at 25 points, approach to work at 15 points, and presentation at 10 points. Questions are due September 15, 2026 at 4:00 p.m. Proposal evaluation is anticipated approximately three weeks after submission, with contract execution estimated eight weeks thereafter. Proposals must be submitted electronically through Pierce County's eProcurement Portal and remain valid for a minimum of 60 calendar days from submission.