Lithologic Log for Boundary Waters (19S/2W-2C7-11)
Shaker
[Altitude of land surface, approximately 35 feet Depth is in feet below land surface. Drilled by U.S. Geological Survey using hydraulic rotary, June 13, 1995. Total depth drilled 1430 feet Screened intervals: 1340-1360, 1170-1190, 945-965, 580-600, and 260-280 feet.]
| Depth(ft) | Description |
|---|---|
| 20 | Sand, minor silt, very fine to very coarse; well sorted; angular to subangular; light olive gray (5Y 5/2) |
| 40 | Silty sand, very fine to medium; well sorted; angular to subangular; light olive gray (5Y 5/2) |
| 60 | Silty sand, some pebble gravel, very fine to medium; poorly sorted; angular to subrounded; light olive gray (5Y 5/2) |
| 80 | Gravelley sand, gravel pebbles, very fine to medium; poorly sorted; angular to subangular; light olive gray (5Y 5/2) |
| 100 | Sand, some gravel pebbles, very fine to very coarse; poorly sorted; angular to subrounded; light olive gray (5Y 5/2) |
| 120 | Sand, fine to very coarse, skewed towards coarse; well sorted; angular to subrounded; light olive brown (5Y 5/6) |
| 140 | Sand, fine to very coarse, skewed towards coarse; well sorted; angular to subrounded; light olive brown (5Y 5/6) |
| 160 | Sand, fine to very coarse, skewed towards medium; well sorted; angular to subrounded; light olive brown (5Y 5/6) |
| 180 | Sand, minor silt, very fine to medium, skewed towards fine; well sorted; angular to subrounded; dusky yellow (5Y 6/4) |
| 200 | Sand, minor silt, very fine to medium, skewed towards fine; well sorted; angular to subrounded; dusky yellow (5Y 6/4) |
| 220 | Sand, minor silt, minor gravel pebbles; poorly sorted; angular to subrounded; dusky yellow (5Y 6/4) |
| 240 | Sand, minor gravel granules, fine to very coarse; moderately sorted; angular to subrounded; light olive gray (5Y 5/2) |
| 260 | Sand, trace gravel pebbles, very fine to very coarse, skewed towards fine; moderately sorted; angular to subangular; light olive gray (5Y 5/2) |
| 280 | Sand, minor gravel pebbles, very fine to very coarse; moderately sorted; angular to subangular; grayish olive (10Y 4/2) |
| 300 | Silty sand, very fine to medium, trace of gravel granules, skewed towards fine; moderately sorted; angular to subangular; grayish olive (10Y 4/2) |
| 320 | Sandy silt, minor clay, minor gravel granuels, very fine to fine sand; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 340 | Sandy silt, minor gravel granuels, very fine to fine sand; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 360 | Sand, some silt very fine to very coarse, skewed towards fine; well sorted; angular to subangular; grayish olive (10Y 4/2) |
| 380 | Silty sand, minor gravel granules, very fine to fine; well sorted; angular to subrounded; grayish olive (10Y 4/2) |
| 400 | Sandy silt, trace gravel granules, very fine to fine; well sorted; angular to subrounded; olive gray (5Y 3/2) |
| 420 | Silty sand, trace gravel pebbles, very fine to fine; well sorted; angular to subangular; grayish olive (10Y 4/2) |
| 440 | Sandy silt, very fine sand, trace clay; very well sorted; angular to subangular; olive gray (5Y 3/2) |
| 460 | Sandy silt, minor clay, very fine to coarse, skewed towards fine; well sorted; angular to subrounded; olive gray (5Y 3/2) |
| 480 | Sandy silt, some clay, very fine to fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 500 | Sandy silt, some clay, trace gravel pebbles, very fine; well sorted; angular to subrounded; olive gray (5Y 3/2) |
| 520 | Sandy silt, some clay, very fine; well sorted; angular; olive gray (5Y 3/2) |
| 540 | Sandy silt, some clay, very fine; well sorted; angular; olive gray (5Y 3/2) |
| 560 | Sandy silt, some clay, very fine; well sorted; angular; olive gray (5Y 3/2) |
| 580 | Sandy silt, some clay, very fine; well sorted; angular; olive gray (5Y 3/2) |
| 600 | Sandy silt, some clay, very fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 620 | Sandy silt, some clay, very fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 640 | Sandy silt, some clay, very fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 660 | Sandy silt, some clay, very fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 680 | Sandy silt, some clay, very fine; well sorted; angular; olive gray (5Y 3/2) |
| 700 | Sandy silt, some clay, very fine; well sorted; angular; olive gray (5Y 3/2) |
| 720 | Sandy silt, some clay, very fine; well sorted; angular to subrounded; olive gray (5Y 3/2) |
| 740 | Sandy silt, some clay, very fine; well sorted; angular to subrounded; olive gray (5Y 3/2) |
| 760 | Sandy silt, some clay, very fine; well sorted; angular to subrounded; olive gray (5Y 3/2) |
| 770 | Sandy silt, some clay, very fine; well sorted; angular; olive gray (5Y 3/2) |
| 790 | Sandy silt, some clay, very fine; well sorted; angular to subrounded; olive gray (5Y 3/2) |
| 810 | Sandy silt, some clay, very fine; well sorted; angular to subrounded; olive gray (5Y 3/2) |
| 830 | Sandy silt, minor clay, very fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 850 | Sandy silt, minor clay, very fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 870 | Sandy silt, minor clay, very fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 890 | Sandy silt, minor clay, very fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 910 | Sandy silt, minor clay, trace gravel granules, very fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 930 | Sandy silt, minor clay, very fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 950 | Sandy silt, minor clay, very fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 970 | Sandy silt, minor clay, very fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 990 | Silty sand, very fine to medium; well sorted; angular to subrounded; grayish olive green (5GY 3/2) |
| 1010 | Silty sand, very fine to medium; well sorted; angular to subrounded; grayish olive green (5GY 3/2) |
| 1030 | Silty sand, very fine to medium; well sorted; angular to subrounded; grayish olive green (5GY 3/2) |
| 1050 | Silty sand, very fine to fine; well sorted; angular to subangular; olive gray (5Y 3/2) |
| 1070 | Silty sand, very fine to medium; well sorted; angular to subrounded; olive gray (5Y 3/2) |
| 1090 | Silty sand, very fine to medium; well sorted; angular to subrounded; grayish olive green (5GY 3/2) |
| 1110 | Sand, very fine to medium; well sorted; angular to subrounded; grayish olive green (5GY 3/2) |
| 1130 | Sand, very fine to medium; well sorted; angular to subrounded; grayish green (5G 5/2) |
| 1150 | Sand, very fine to medium; well sorted; angular to subrounded; grayish green (5G 5/2) |
| 1170 | Sand, very fine to medium; well sorted; angular to subrounded; grayish green (5G 5/2) |
| 1190 | Sand, very fine to medium; well sorted; angular to subrounded; grayish green (5G 5/2) |
| 1210 | Sand, very fine to coarse; moderately sorted; angular to subrounded; grayish green (5G 5/2) |
| 1230 | Sand, very fine to coarse; moderate to poorly sorted; angular to subrounded; grayish green (5G 5/2) |
| 1250 | Sand, very fine to fine; very well sorted; angular to subrounded; grayish green (5G 5/2) |
| 1270 | Sand, very fine to fine; very well sorted; angular to subrounded; grayish green (5G 5/2) |
| 1290 | Sand, very fine to fine; very well sorted; angular to subrounded; grayish green (5G 5/2) |
| 1310 | Sand, very fine to medium, skewed towards fine; well sorted; angular to subrounded; grayish green (10G 4/2) |
| 1330 | Sand, very fine to medium, skewed towards fine; well sorted; angular to subrounded; grayish green (10G 4/2) |
| 1350 | Sand, very fine to medium, skewed towards fine; well sorted; angular to subrounded; grayish green (10G 4/2) |
| 1370 | Sand, very fine to fine; very well sorted; angular to subrounded; grayish green (5G 5/2) |
| 1390 | Sand, very fine to medium; well sorted; angular to subrounded; grayish green (5G 6/2) |
| 1410 | Silty sand, some clay, very fine to coarse, skewed towards fine; moderately sorted; angular to subrounded; dusky green (5G 3/2) |
| 1420 | Silty sand, some clay, very fine to coarse, skewed towards fine; moderately sorted; angular to subrounded; dusky green (5G 3/2) |
Questions about San Diego Hydrogeology? Please contact Wes Danskin (email: wdanskin@usgs.gov or send a letter). 619.225.6132
