Lithologic Log for SBVMWD Backyard (1S/4W-22D2, 4-7)
Sieve
[Altitude of land surface, approximately 975.1 feet Depth is in feet below land surface. Drilled by McCalla Bros., October 1974. Total depth drilled 700 feet Screened intervals: 650-655, 555-574, 388-398, 160-200, and 16-26 feet]
| Depth(ft) from | Depth(ft) to | Description |
|---|---|---|
| 0 | 15 | Silt and very fine to medium sand; dark brown |
| 15 | 29 | Fine to medium sand and very fine to very coarse gravel; subrounded to rounded; light brown |
| 29 | 34 | Medium to very coarse gravel and fine to medium sand; subrounded to rounded; light brown |
| 34 | 39 | Fine to coarse sand and fine to very coarse gravel; some silt; subrounded to rounded; light brown |
| 39 | 44 | Fine sand and sand clay; gray-brown |
| 44 | 54 | Silt and sandy clay; gray-brown (wood) |
| 54 | 102 | Sandy clay and a little fine sand; gray (wood) |
| 102 | 130 | Sand, fine to coarse; some fine gravel |
| 130 | 140 | Sand, fine to coarse; some fine gravel; wood particles |
| 140 | 152 | Sand, fine to coarse, silty, some gray clay |
| 152 | 162 | Silty fine sand to fine gravel |
| 162 | 170 | Silty fine sand to fine gravel, occasional cobbles |
| 170 | 182 | Silty fine sand to fine, occasional cobbles |
| 182 | 190 | Sand, fine to coarse, some coarse gravel |
| 190 | 210 | Sand, fine to coarse, and fine gravel; subrounded; occasional cobbles |
| 210 | 223 | Sand, fine to coarse; subrounded; some cobbles |
| 223 | 228 | Fine sand to fine gravel; wood particles |
| 228 | 238 | Fine sand to medium gravel; occasional cobbles |
| 238 | 250 | Sand, fine to coarse; and fine gravel |
| 250 | 263 | Sand, fine to coarse, some fine gravel and occasional cobbles |
| 263 | 273 | Fine sand to fine gravel |
| 273 | 286 | Fine sand to fine gravel, some cobbles |
| 286 | 292 | Sand, fine to coarse, silty |
| 292 | 298 | Fine sand to fine gravel, some cobbles |
| 298 | 304 | Fine sand to very fine gravel; wood particles and occasional cobbles |
| 304 | 348 | Sand, fine to coarse, some fine to medium gravel, occasional cobbles |
| 348 | 366 | Sand, fine to medium, some sandy clay |
| 366 | 404 | Fine gravel to fine sand, occasional cobbles and medium to coarse gravel |
| 404 | 420 | Fine sand to fine gravel; abundant wood particles |
| 420 | 450 | Fine sand to medium gravel, some cobbles |
| 450 | 462 | Clay, gray, sticky with fine gravel to fine sand; wood particles |
| 462 | 482 | Fine sand to fine gravel and cobbles |
| 482 | 514 | Fine sand and silt; streaks of brown clay, occasional cobbles |
| 514 | 540 | Sand, medium to coarse, some silty clay, occasional cobbles |
| 540 | 557 | Sand, medium to coarse and sandy white clay, occasional cobbles |
| 557 | 574 | Sand, medium to coarse, occasional cobbles |
| 574 | 590 | Sand, medium to coarse and sandy white clay, occasional cobbles |
| 590 | 596 | Sand, medium to coarse and gray, brown, and green clay; abundant wood chips |
| 596 | 604 | Sand, medium to coarse, some gray clay, occasional cobbles |
| 604 | 660 | Sand, medium to coarse, some gray clay, occasional cobbles |
| 660 | 680 | Sand, fine to medium and very sandy brown and gray clay, occasional cobbles |
| 680 | 700 | Silt and fine to medium sand, occasional cobbles |
Questions about Optimal Basin Management? Please contact Wes Danskin (email: wdanskin@usgs.gov or send a letter). 619.225.6132
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