Facility details
- Address
- 3434 South Silverlake Road
Castle Rock, WA 98611 - Phone
- (360) 636-7080
- Facility type
- Landfill
- County
- Cowlitz County
- EPA Region
- 10
- Data sources
- EPA
- Last verified
- 2026-10-09
EPA LMOP landfill data
- Status
- Open
- Opened / Projected closure
- 1993 / 2094 (projected)
- Ownership
- Public · Cowlitz County, WA
- Waste in place
- 11,186,328 tons (as of 2022)
- Design capacity
- 53,367,110 tons
- Annual acceptance
- 787,914 tons per year
- Landfill gas collection
- Yes
Source: EPA LMOP, Sep 2024
About this facility
A municipal solid waste (MSW) landfill is an engineered disposal site where household, commercial and some construction waste is weighed in at a scale house, tipped, compacted and covered with soil or an approved alternative at the end of each operating day. Modern landfills are lined and monitored, and many capture landfill gas. Some landfills accept self-haul loads from residents and small businesses; others take only contracted hauler or commercial loads. Fees are usually charged by the ton or by the load. Hours, fees and accepted materials vary — call ahead.
Typically accepted at landfills
- Household trash
- Bulky items and furniture
- Construction and demolition debris
- Yard waste (at many sites)
- Tires (often by appointment or for a fee)
Hours, fees and accepted materials vary by site — call ahead before hauling a load.
Nearby facilities
- Waste Control Transfer Station and Recycling Transfer Station 11.8 mi · Longview, WA
- PNW Metal Recycling Recycling 11.9 mi · Longview, WA
- Cowlitz County Landfill Landfill 12.9 mi · Longview, WA
Nearest other landfill: Cowlitz County Landfill, Longview — 12.9 mi
Area served
Serves Castle Rock, Silverlake, Kelso, Vader, Ryderwood, Longview, Toledo, Winlock.
County context
One of 2 landfills in Cowlitz County, WA.
ZIP 98611 population 9,367.
Washington solid-waste agency: Washington State Department of Ecology