pt-1 (cont.) - gmw.consrv.ca.govgmw.consrv.ca.gov/shp/apsi_siteinvestigation... · 1/26/2007 ·...
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PT-1 (cont.)
PT-1 (cont.)
380260 280 300 320 390370270 290 310 330 350 360340Sta 250(in feet)
520400 420 440 460 530510390 410 430 450 470 490 500480
Iron oxidationstaining. Lateral
spreadingContinuousbedding
Fracture:Iron oxidationstaining.
Concrete pipeGround surface
Secondary seismic:No offset of silt.
Fracture:N30E/90
Clay bed Silt clasts
9 Sandy silt (ML)/Ash; medium stiff, pale yellow (5Y 8/3)dry to moist, thinly laminated to laminated.
11
10
Clay balls Clay lensesPipe fragment
af
7A
Silty sand (SM); medium dense, light gray (5Y 7/1) dry-moist,fine to medium, laminated to thinly bedded, abundant biotite,minor iron oxidation staining.
Silty clay (CL); medium stiff, light brownish gray (10YR 6/2)moist.
10
11
N58E
0 10
GRAPHIC SCALE(in feet)
HORIZONTAL = VERITCAL
LAW
Trench Logs: PT-1 cont.
Jan. 2007 389-06
The Villas
PLATE 3
PETRA GEOTECHNICAL, INC.12225 WORLD TRADE DRIVE, SUITE P
SAN DIEGO, CALIFORNIA 92128PHONE: (858) 485-5530
DATE: J.N.:
DWG BY: SCALE: See above
COSTA MESA MURRIETA PALM DESERT SAN DIEGO SANTA CLARITA