VDC Recharge Basin - TMVC (8S/1W-6R1-6)
Lithologic Summary
[Altitude of land surface, 1,252.78 feet above NAVD88. Depth is in feet below land surface. Soil and rock color notation from Munsell Color (2000). Drilled by U.S. Geological Survey using hydraulic rotary, August 2013. Total depth drilled 1033 feet. Screened intervals: 25-30, 110-130, 270-290, 540-560, 820-840, 940-960, and 980-1020 feet.]
Depth (ft) | Description | |
---|---|---|
From | To | |
0 | 136 | Gravelly (gran-sm peb) sand (m-vc); lt olive brown (2.5Y 5/3) |
136 | 142 | Sand (m-vc), minor gravel (gran); lt olive brown (2.5Y 5/3) |
142 | 159 | Sandy (m-vc) gravel (gran), mafic gravel <2cm; dark grayish brown (10YR 4/2) |
159 | 180 | Silty sand (f-c); lt yellowish brown (2.5Y 6/3) |
180 | 205 | Clayey silty sand (f-m); lt olive brown (2.5Y 5/3) |
205 | 211 | Silty sand (f-c); lt olive brown (2.5Y 5/3) |
211 | 212 | Gravelly (gran-sm peb) sand (m-vc); lt olive brown (2.5Y 5/3) |
212 | 255 | Silty sand (f-vc), minor clay, trace vc & gran; lt olive brown (2.5Y 5/3) |
255 | 276 | Sandy (vf-m) silty clay; lt yellowish brown (2.5Y 6/3) |
276 | 360 | Silty sand (vf-m), some c-vc sand, minor clay; lt olive brown (2.5Y 5/3) |
360 | 385 | Sand (f-c), minor silt; lt olive brown (2.5Y 5/3) |
385 | 440 | Silty sand (f-c), minor clay, minor gran; lt olive brown (2.5Y 5/3) |
440 | 555 | Clayey silty sand (f-c); lt olive brown (2.5Y 5/3) |
555 | 565 | Silty sand (f-c); lt olive brown (2.5Y 5/3) |
565 | 615 | Clayey sandy (vf-m) silt; lt olive brown (2.5Y 5/3) |
615 | 625 | Silty sand (f-c); lt olive brown (2.5Y 5/3) |
625 | 645 | Sandy (vf-m) clay; lt olive brown (2.5Y 5/3) |
645 | 726 | Clayey silty sand (f-m); lt olive brown (2.5Y 5/3) |
726 | 733 | Silty clay; lt olive brown (2.5Y 5/3) |
733 | 766 | Sandy (f-m) clayey silt; lt olive brown (2.5Y 5/3) |
766 | 841 | Clay, some Silt, trace sand (f-c); lt olive brown (2.5Y 5/3) |
841 | 860 | Sandy (vf-vc) clay, trace gravel (gran.); lt olive brown (2.5Y 5/3) |
860 | 871 | Clay, minor sand (vf-vc); lt olive brown (2.5Y 5/3) |
871 | 875 | Sandy (vf-vc) clay; lt olive brown (2.5Y 5/3) |
875 | 887 | Clayey sand (vf-vc); lt olive brown (2.5Y 5/3) |
887 | 900 | Clay, trace sand (vf-vc); lt olive brown (2.5Y 5/3) |
900 | 904 | Sandy (vf-vc) clay; lt olive brown (2.5Y 5/3) |
904 | 955 | Clayey sand (vf-vc), trace gravel (gran-sm peb); dark reddish brown to dark red (5YR 5/3 to 2.5YR 3/6) (Basalt) |
955 | 985 | Sandy (m-vc) gravel (gran-sm peb), v. angular; dark reddish gray (5YR 4/2) |
985 | 1033 | Sandy (m-vc) gravel (gran.-sm peb); dark reddish gray to black (5YR 4/2 to 2.5Y 2.5/1) (Metavolcanic sed.) |