San Bernardino Optimal Basin Management
Lithologic Log for Sierra High School - SBSH (1S/4W-2D6-8)
Sieve
[Altitude of land surface, approximately 1,077 feet Depth is in feet below land surface. Drilled by McCalla Bros., December 1975. Total depth drilled 530 feet Screened intervals: 520-530, 340-400, and 170-190 feet]
| Depth(ft) from | Depth(ft) to | Description |
|---|---|---|
| 0 | 6 | Sand |
| 6 | 12 | Clay and sand |
| 12 | 175 | Boulders, gravel, and sand |
| 175 | 190 | Sand and gravel, some boulders |
| 190 | 206 | Sand and gravel |
| 206 | 210 | Sand and clayey silt |
| 210 | 212 | Sand, gravel, and clayey silt |
| 212 | 214 | Sand and clayey silt |
| 214 | 215 | Clay, sand and gravel |
| 215 | 216 | Sand and clayey silt |
| 216 | 217 | Sand and clayey gravel |
| 217 | 220 | Sand, fine, and clayey silt |
| 220 | 235 | Sand, clay, and gravel |
| 235 | 267 | Sand, silt, some gravel, and boulders |
| 267 | 275 | Gravel and boulders |
| 275 | 279 | Sand and silt |
| 279 | 286 | Sand, silt, and boulders |
| 286 | 288 | Gravel and boulders |
| 288 | 290 | Sand, silt, and boulders |
| 290 | 292 | Gravel and some boulders |
| 292 | 299 | Sand, silt, and boulders |
| 299 | 300 | Gravel and some cobbles |
| 300 | 400 | Sand, silt, and cobbles |
| 400 | 411 | Sand, cobbles, and gravel |
| 411 | 417 | Sand, silt, and occasional cobbles |
| 417 | 465 | Sand, gravel, and cobbles |
| 465 | 530 | Hard rock, drills like bedrock |
San Bernardino Optimal Basin Management
Welcome to the U.S. Geological Survey (USGS) San Bernardino Optimal Basin Management website. This site provides hydrologic data collected or compiled by the USGS in the San Bernardino area; some additional data may be available from the USGS database National Water Information System (NWIS).
Project Chief: Wes Danskin
Phone: 619-225-6132
Email: wdanskin@usgs.gov
Questions about Optimal Basin Management? Please contact Wes Danskin (email: wdanskin@usgs.gov or send a letter). 619.225.6132