A Phase I ESA completed in May 2015, by IDEQ�s contractor, uncovered several RECs at the BNSF Railway Company Right of Way (ROW), Riverstone to Huetter section. The ROW was divided into three zones based upon historic industrial uses. All zones have a history of railroad use for more than 100 years. In the early 1900s there were hourly electric train services along this corridor linking Spokane, Washington, to Coeur d'Alene. The region also has a long history of heavy metal mining and rail distribution. Previous limited assessment of the ROW, conducted by BNSF, included sampling of shallow sub-surface soils for RCRA 8 metals, TPHs and PAHs from the 18- 24-inch depth interval. Metals concentrations from soil samples collected from the 18- to 24-inch depth interval were above IDEQ�s Initial Default Target Levels (IDTLs), but may be within regional background concentrations at this depth interval. In Zone 1, 2 and 3, the Phase I identified RECS for heavy metals and PAHs from historic rail activity. Additional characterization is recommended for surface soils (i.e., <18 inches bgs) for RCRA 8 metals and PAHs. On May 28, 2015, the City of Coeur d�Alene and Ignite CDA, local urban renewal agency, approved the purchase of BNSF ROW for $2.5 M. The City�s contribution was $1,016,273. And Ignite CDA�s contribution was $1,483,727. .The City envisions the conversion of the former rail ROW to a pedestrian-bicycle path along the Coeur d�Alene river frontage. The Phase I ESA recommended completing a Phase II ESA to evaluate the extent of contamination and evaluate threats to human health and the environment. IDEQ�s contractor will perform additional characterization activities on the ROW for use in a human health risk assessment focused on currently identified future redevelopment goals and land use
Former Use: A Phase I ESA completed in May 2015, by IDEQ�s contractor, uncovered several RECs at the BNSF Railway Company Right of Way (ROW), Riverstone to Huetter section. The ROW was divided into three zones based upon historic industrial uses. All zones have a history of railroad use for more than 100 years. In the early 1900s there were hourly electric train services along this corridor linking Spokane, Washington, to Coeur d'Alene. The region also has a long history of heavy metal mining and rail distribution. Previous limited assessment of the ROW, conducted by BNSF, included sampling of shallow sub-surface soils for RCRA 8 metals, TPHs and PAHs from the 18- 24-inch depth interval. Metals concentrations from soil samples collected from the 18- to 24-inch depth interval were above IDEQ�s Initial Default Target Levels (IDTLs), but may be within regional background concentrations at this depth interval. In Zone 1, 2 and 3, the Phase I identified RECS for heavy metals and PAHs from historic rail activity. Additional characterization is recommended for surface soils (i.e., <18 inches bgs) for RCRA 8 metals and PAHs. On May 28, 2015, the City of Coeur d�Alene and Ignite CDA, local urban renewal agency, approved the purchase of BNSF ROW for $2.5 M. The City�s contribution was $1,016,273. And Ignite CDA�s contribution was $1,483,727. .The City envisions the conversion of the former rail ROW to a pedestrian-bicycle path along the Coeur d�Alene river frontage. The Phase I ESA recommended completing a Phase II ESA to evaluate the extent of contamination and evaluate threats to human health and the environment. IDEQ�s contractor will perform additional characterization activities on the ROW for use in a human health risk assessment focused on currently identified future redevelopment goals and land use