# Pierce County Opengov #2026-RFP-207

On-call ecological restoration and invasive-species control services for Pierce County sites

**Posted:** September 09, 2026
**Respond By:** September 30, 2026
**Identifier:** 2026-RFP-207
**NAICS:** 561730, 115310

Pierce County is seeking on-call ecological restoration and landscape services to maintain and improve County-owned parks and environmentally sensitive sites.
- **Government buyer:** Pierce County, Procurement and Contract Services.
- **OEMs and vendors:** No OEMs, manufacturers, or prospective vendors are named; no branded products are requested.
- **Services requested:** On-call invasive-species surveys and control; native-plant installation; site preparation; seeding, mulching, and soil amendment; inspections and control recommendations; slope stabilization and erosion control; mowing and brushcutting; plant protection; and herbicide application in wetland, riparian, and upland areas. The contractor supplies labor, tools, equipment, materials, supervision, and subcontractor coordination.
- **Pricing line items:** 2,000 hours each for landscape maintenance labor, landscape construction/planting labor, and landscape operator labor; plus a materials markup entry with a stated quantity of 5,000. No part numbers are provided.
- **Notable requirements:** At least five years of restoration experience, technical knowledge of native and invasive plants, and applicable aquatic-herbicide licenses and endorsements. Weed-control methods must be suitable for sensitive sites and consistent with Integrated Pest Management plans. Prevailing-wage requirements apply to covered work.
- **Sites and contract term:** Work is primarily at County-owned wetlands, riparian areas, parks, and other restoration sites; locations may vary in size and additional sites may be added. The anticipated initial term is 24 months, with an option to renew for an additional three years.

### Description

Pierce County is soliciting proposals for on-call landscape maintenance at restoration and mitigation sites throughout County-owned locations, particularly regulated wetlands, riparian areas, and other sensitive restoration sites. Work includes vegetative maintenance, invasive species control, native plant installation, site preparation, inspections, erosion-control measures, mowing, and herbicide application. The contractor must provide the labor, equipment, materials, supervision, and coordination needed, and meet stated experience, plant-knowledge, and aquatic herbicide licensing requirements. The anticipated initial contract term is 24 months, with an option to renew for an additional three years; the stated estimated contract value is $500,000.

[View original listing](https://procurement.opengov.com/portal/piercecountywa/projects/292836)