LeRoi Co Smelter
Town Purchases Property For Community Space
Environmental Protection Agency Completed Cleanup
In 2004, the U.S. Environmental Protection Agency (EPA) consolidated all scrap metal for recycling, consolidated and capped contaminated soil with a protective barrier, and properly disposed of hazardous materials off-site. Access controls and an environmental covenant limit public access and protect the integrity of the cleanup actions. You may read the Removal Action Report and visit EPA's Le Roi Smelter website for more information.
Periodic reviews
Ecology visited the site for periodic reviews in 2017 and 2022, and found the cleanup actions remain intact.
Site History
The LeRoi Co Smelter site covers approximately 30 acres at the northeast end of Northport, Washington.
The facility began smelting copper and gold tellurium ores from the Le Roi Mine in Rossland, British Columbia, and copper, lead, and silver ores from northeastern Washington in 1896. Heap roasting of tellurium ore involved open roasting on brick platforms. Burned ore was placed in a furnace that produced iron and slag waste. Some of the waste was formed into bricks that were then used as construction materials for on-site as well as off-site buildings. The gold and copper concentrate was shipped off the site by rail for further refining.
At the peak of operation, the Le Roi Smelter processed 500 tons of ore per day; operations were suspended in 1909. In 1914, the Le Roi Smelter reopened to process lead ore from Leadpoint, Washington, to meet government demand during World War I. Lead smelting operations during this period produced up to 30 tons per day of airborne sulfur emissions. Operations ceased permanently in 1921, and the Site remained inactive until 1953. The furnace, roaster, crusher, and ore buildings were removed during this period of inactivity.
From 1953 to 2001, the site was used as a lumber mill. The main lumber operations were located in the western portion of the Site, and the eastern portion was used to store lumber products and old metal parts. The lumber mill processed mostly cedar wood from rough-dimension lumber into exterior siding and exterior paneling. Mill processes included cutting, drying, and shipping the wood products. Mill operations ran on propane. No wood treatment or chemical use was reported during the mill’s operating history.
Site use restrictions called institutional controls are in effect
Institutional controls can be fences, signs, or restrictions on how the property is used. For instance, an institutional control may prohibit installing drinking water wells or disturbing a protective cap that isolates contamination. These restrictions keep the contamination contained and keep people from being exposed to the contamination. The controls are usually listed in environmental covenants recorded with the county.
Periodic reviews are required when institutional controls are required at a site. Ecology conducts reviews to make sure the controls remain effective and the cleanup still protects human health and the environment. We conduct periodic reviews about every five years.
Institutional Controls 1
Environmental Covenant
Restrictions/Requirements
- Prevent the Reuse or Relocation of Site Soil
- Prohibit Soil Disturbance
- Restrict Land Use
Restricted Media
- Soil
Documents 8
Legal 1
Document Title | Document Date | Document Type |
Environmental Covenant: LeRoi Co Smelter | 1/12/2010 | Environmental Covenant; Alternative Mechanism |
Technical Reports 7
Document Title | Document Date | Document Type |
Second Periodic Review: LeRoi Co Smelter | 11/8/2023 | Periodic Review (5 Year) |
First Periodic Review: LeRoi Co Smelter | 9/29/2017 | Periodic Review (5 Year) |
Removal Action Report: LeRoi Co Smelter | 4/25/2005 | Remedial Action Report |
State Remedial Investigation Work Plan: LeRoi Co Smelter | 6/1/1996 | Remedial Investigation Work Plan |
Health Impact Assessment of Metals Detected in Gardens in Northport: LeRoi Co Smelter | 8/1/1995 | Human Health and/or Eco Risk Assessment |
Site Inspection Report: LeRoi Co Smelter | 10/15/1993 | Site Specific Technical Document - other |
Preliminary Assessment Report: LeRoi Co Smelter | 4/28/1993 | Site Specific Technical Document - other |
Places to see print documents
-
Eastern Regional OfficeN 4601 Monroe StSpokane, 99205-1265Please schedule an appointment to view print documents at this location.
Contaminants 2
Contaminant Type | Soil |
Groundwater |
Surface Water |
Air |
Sediment |
Bedrock |
---|---|---|---|---|---|---|
Metals - Arsenic | C | |||||
Metals - Lead | C |
- S
- Suspected
- C
- Confirmed Above Cleanup Levels
- B
- Below Cleanup Levels
- RA
- Remediated-Above
- RB
- Remediated-Below
- R
- Remediated