1 Page Write-up for Geotechnical Deliverables

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10

20

30

40

26

40

10

12

35

63

50/5"

16.0

18.8

19.8

16.4

13.1

13.6

108.0

104.9

107.1

122.0

GW

ML

SM

SP

SW

ASPHALT CONCRETE: Approximately 5 inches thick. AGGREGATE BASE: Approximately 9 inches thick. ASPHALT CONCRETE: Approximately 12 inches thick (second layer). FILL: Reddish gray to reddish brown, moist, medium dense, fine sandy SILT.

ALLUVIUM: Brown, moist, silty fine SAND; scattered medium to coarse sand.

Medium dense.

Brown to light reddish brown, wet, medium dense, fine to medium SAND; scattered coarse sand.

No recovery.

Light olive gray; medium to coarse; scattered silt.

Light brown to light gray, wet, dense, well-graded SAND.

GRANITIC ROCK: Grayish brown to dark yellowish gray, wet, moderately hard GRANITIC ROCK.

FIGURE A- 4

PIPELINE FOR MFRO FACILITY WEST WASHINGTON AVENUE AND WAVERLY PLACE, ESCONDIDO, CALIFORNIA

108793002 | 2/20

D E

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M O

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DESCRIPTION/INTERPRETATION

DATE DRILLED 1/9/20 BORING NO. BH-3

GROUND ELEVATION 644'  MSL SHEET 1 OF

METHOD OF DRILLING 8" Diameter Hollow Stem Auger (CME-75) (Baja Exploration)

DRIVE WEIGHT 140 lbs. (Auto Hammer) DROP 30"

SAMPLED BY SJQ LOGGED BY SJQ REVIEWED BY CAT

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40

50

60

70

80

50/3"

50/3"

50/2"

9.5

10.0

GRANITIC ROCK (Continued): Grayish brown to dark yellowish gray, wet, moderately hard GRANITIC ROCK.

Total Depth = 50.2 feet. Groundwater encountered at the time of drilling at approximately 17 feet. Backfilled shortly after drilling on 1/9/20.

Notes: Groundwater may rise to a higher level due to seasonal variations in precipitation and several other factors as discussed in the report.

The ground elevation shown above is an estimation only. It is based on our interpretations of published maps and other documents reviewed for the purposes of this evaluation. It is not sufficiently accurate for preparing construction bids and design documents.

FIGURE A- 5

PIPELINE FOR MFRO FACILITY WEST WASHINGTON AVENUE AND WAVERLY PLACE, ESCONDIDO, CALIFORNIA

108793002 | 2/20

D E

P T

H (

fe e t)

B u

lk S

A M

P L E

S D

ri ve

n

B L

O W

S /F

O O

T

M O

IS T

U R

E (

% )

D R

Y D

E N

S IT

Y (

P C

F )

S Y

M B

O L

C L

A S

S IF

IC A

T IO

N U

.S .C

.S .

DESCRIPTION/INTERPRETATION

DATE DRILLED 1/9/20 BORING NO. BH-3

GROUND ELEVATION 644'  MSL SHEET 2 OF

METHOD OF DRILLING 8" Diameter Hollow Stem Auger (CME-75) (Baja Exploration)

DRIVE WEIGHT 140 lbs. (Auto Hammer) DROP 30"

SAMPLED BY SJQ LOGGED BY SJQ REVIEWED BY CAT

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