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ESBGU Test Pits We excavated eight exploratory test pits (TP-1 through TP-8) at the site on November 12, 2018, using a John Deere 50G rubber-tracked excavator. The test pits were dug in the vicinity of the planned pavement and structure locations based on the preliminary layoutprovided by Rowell Brokaw. The test pit locations are shown on Figure 3A. The testpitlocations were established by pacing relative to existing landmarks and nearby structures and are approximate. Disturbed soil samples were obtained for possible laboratory testing. Undrained shear strength measurements were taken on the test pit sidewalls using a field vane shear device. The soil profiles, sampling depths, and strength measurements are summarized on the test pit logs (Appendix B). Upon completion of the exploration, the test pits were backfilled with the excavated materials, and the ground surface was graded as smooth as practical. DISCUSSION OF SITE CONDITIONS Surface Conditions The site is relatively flat with ground elevations typically ranging from ±El. 390 to ±El. 393. The ground surface is predominately covered in short grass and weeds. The north and west portions of the lot contain severalareas paved with asphaltic concrete (AC) and building pads from previously demolished buildings. Subsurface Conditions The subsurface conditions are discussed below. More detailed descriptions of the subsurface conditions are provided on the boring and test pit logs in Appendix B. The explorations on the west side of the site (TP-1 through TP-3 and BH-1) indicate fill is present in the previously developed areas. The fill consists predominantly of silty gravel with some cobbles extending from the ground surface to depths ranging from ±0.8 to 8 feet. This material is locally known as bar-run fill. The explorations completed outside the filled areas (TP-4 through TP-8) encountered fine-grained soil at the ground surface. In TP-5 through TP-8, the fine-grained soil includes a ±0.5 to 1-foot thick topsoil layer comprised of non-plastic to low plasticity silt with scattered organics. The topsoil was damp and soft to stiff at the time of our investigation. A topsoil layer was not observed in TP-4, which was dug next to a running track. The topsoil in this area may have been removed as part of previous site grading. Santa Clara Transit Center January 15, 2019 Geotechnical Investigation 2 Project 2181060 Eugene, Oregon Rowell Brokaw