Exploration no. 118018 is a Geotechnical (depth 17 feet) named: L-3-06 described in subsurface document no. 48087. The document, a report titled Luminaire Standard Foundations, SR-539 Horton Rd to Ten Mile Rd Widening to Five Lanes MP 1.73 to 6.13 was prepared by WA State Dept. of Transportation on 01-23-2007 for a Roadway project.