Kellogg Island - Lafarge Cement
River Mile (RM) 1.0-1.3 West

Click on photo for larger view.

SITE BACKGROUND

The Kellogg Island to Lafarge source control area (also referred to as the RM 1.0-1.3 West source control area) is located along the western side of the Lower Duwamish Waterway (LDW) Superfund Site between 1.0-1.3 miles from the southern end of Harbor Island. The aerial photograph shows the area of interest which is bordered on the west by West Marginal Way SW and Burlington Northern Railroad. The Kellogg Island to Lafarge source control area is bordered by the LDW to the north and east. The Chemithon Corporation is located to the southwest and Alaska Marine Lines is immediately south of the Kellogg Island to Lafarge source control area and Lafarge property. These facilities were discussed in the Glacier Bay (RM 1.3-1.6 West) source control area Data Gaps Report and Source Control Action Plan.

The upland areas near this source control area have been heavily industrialized for decades. Historical and current commercial and industrial operations in the area include Portland cement production, intermodal transportation, railroad operations, and synthetic detergents manufacturing.

CONTAMINATION

Sediments in the Kellogg Island to Lafarge portion of the LDW have been impacted by chemical contaminants from various sources. Before reaching the LDW sediments the contaminants first affected upland media including surface water, groundwater, soil, and air.  

The following chemicals are considered to be contaminants of concern in the Kellogg Island to Lafarge source control area because they could possibly re-contaminate Lower Duwamish Waterway sediments once it has been cleaned up. 

Metals Organics
Organo-tin compounds PCBs (polychlorinated biphenyls)
  Polynuclear Aromatic Hydrocarbons (PAHs)

Bis (2ethylhexyl) phthalate 
  Dioxin/furans


Source Control

Ecology is the lead for source control for the LDW Superfund site. Source control is the process of finding and then stopping or reducing as much as possible releases of pollution to the river.

The Kellogg Island to Lafarge drainage basin outlines the area where sources need to be controlled (see picture). The way contaminants enter Lower Duwamish Waterway sediments from this source control area include: direct discharges via piped outfalls, bank erosion from adjacent properties, surface runoff from adjacent properties, groundwater discharge, air deposition, and spills directly to the inlet. Ecology looks at all these possible sources for the Kellogg Island to Lafarge source control area in order to determine what source control work needs to be done.

Source Control Action Plan

Ecology hired a contractor to put together a Summary of Existing Information and Data Gaps report (7 mb) for RM 1.0-1.3 Kellogg Island – Lafarge Cement source control area. Ecology and its contractor used the report to develop a Source Control Action Plan (1.7 mb) for the area. This plan describes the source control actions that are necessary to reduce the potential for sediment contamination.

Related Information

Additional Resources