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Environmental Studies

In accordance with state and federal law, Seattle Public Utilities (SPU) performed multiple environmental studies in 2008 to ensure the least environmental impact while improving solid waste services at the North Transfer Station.

SEPA and Other Studies Performed

In April 2008, SPU’s Major Interagency Projects Director issued a Determination of Non-Significance (DNS) (pdf), in compliance with the State Environmental Policy Act (SEPA). The following June, SPU performed a subsurface investigation of soils and groundwater at the existing station site and the property to the east at 1550 N. 34th St. View the draft Limited Site Investigation Report (pdf) containing environmental soil and groundwater sample results. Also, an earlier report on the 1997 Site Characterization and Cleanup Report (pdf) is available.

Additional Studies

Additional noise, odor, and air quality studies will be performed during the design of the new North Transfer Station. Results of these studies will be posted as they are completed.

Studies previously prepared to support the North Transfer Station decision include: