Exploration no. 145775 is a Boring / probe (depth 15 feet) named: B-207 described in subsurface document no. 64136. The document, a report titled Geotechnical Report Conveyance Line Windermere Combined Sewer Overflow Storage Project Seattle, Washington was prepared by City of Seattle, Public Utilities, Geotechnical Engineering on 07-01-2012 for a Utility project.