6_HCR-GeotechBorings-2007.pdf

10250 S.W. Greenburg Road, Suite 111 Portland, Oregon 97223 Main 503-452-1100 Fax 503-452-1528

C O N S U L T A N T S

CORNFORTH MAR 2007

PROJ. 1834

2FIG.

SITE EXPLORATION PLAN

AND SECTION

HILLS CREEK DAM SEEPAGE EXPLORATIONS

OAKRIDGE, OREGON1834\02.AI LJW

DH-15

DH-15

DH-16

SCALE IN FEET

0 1000500

SCALE IN FEET

0 250125

A

A

LEGEND

BORING LOCATION

AND DESIGNATION

PLAN

SECTION A-A

NOTE: CROSS SECTION IS FOR PREVIOUS

BORINGS Z-10, Z-11 AND Z-9. Z-10 IS

LOCATED APPROX. 20 FT. FROM NEW

BORING DH-15. DH-15 AND DH-16 ARE

NOT SHOWN ON THIS SECTION.

GRAB SAMPLE

PIEZOMETER SEAL

PIEZOMETER

FILTER PACK

FHT FALLING HEAD

TEST INTERVAL

10250 S.W . G reenburg R oad, Suite 111

Portland, O regon 97223

Phone 503-452-1100 Fax 503-452-1528

C O

N S

U L

T A

N T

S C

O R

N

FO

R T

H

GRAVEL with sand and clay (GW-GC)

Sandy GRAVEL with clay (GW)

Sandy GRAVEL with clay (GW)

DH-15

DH-16

DH-16

DH-16 Sandy GRAVEL with clay (GW)

Boring No. Depth, Ft.Sample No. Classification P L P I

COBBLES GRAVEL

Coarse Fine Coarse Medium Fine Silt Clay

SAND FINES

Nat W% L L

U.S. STANDARD SIEVE OPENING U.S. STANDARD SIEVE NUMBERS HYDROMETER

GRAIN SIZE IN MILLIMETERS

PE

R

C

EN

T

FI

N

ER

B Y

W

EI

G H

T

50 510 1 0.5 0.1 0.05 0.01 0.005 0.001

IN INCHES

3 2 1 4 6 81/2 3/8 1/43/411/2 10 14 16 20 30 40 70 140 2001006046812

H

ILLS C

R

EEK D

AM

SEEPAG

E EXPLO

R

ATIO

N

S O

AKR

ID

G E, O

R

EG

O N

G R

AD

ATIO

N G

R

APH

PR

O

J. 1834

M

AR

FIG

1834\07.AI M

W T