| Soil Type | Hydrologic Class | Texture | Permeability | Location |
| Maymen | D | Loam over shale bedrock | Moderate | Northeast canyon uplands and narrow band northeast of central campus |
| Maymen-Los Gatos | D/C | Loam over shale and sandstone | Moderate to moderately slow | Central and southern areas of canyon lower slopes |
| Xerothents-Los Gatos | C | Variable - mostly loam with silty clay loam | Slow | One pocket north of Cedar Street |
| Xerothents-Millsholm | B/D | Variable - mostly loam with silty clay loam and shale-sandstone fragments | Moderate | Northern area of watershed and LBL complex |
| Los Osos-Millsholm | C/D | Silty clay loam and silty loam | Slow to moderate | Small pocket east of Scenic Avenue |
| Altamont | D | Clay over sandstone and shale | Slow | Area between Centennial Drive and LBL complex |
| Urban Land-Tierra | - | Loam, clay, sandy clay, sandy clay loam and fill | Very slow | One pocket north of Hearst Avenue |
| Urban Land | - | Heterogeneous fill | - | Central campus |