DRILLING COMPANY/DRILLING EQUIPMENT BORING …media.metro.net/projects_studies/westside/images/final_eir-eis... · Silty Sand, fine grained; varying color, mainly light brownish gray

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Qlw ContinuedSilty Sand, fine grained; pale brown (2.5Y 8/2); appears damp and denseAt 60.3 to 60.9': Strongly mottled, pale brown (2.5Y 8/2) to strong brown (7.5YR 5/8)

At 61.2': Rounded meta-basalt clast, up to 3 inches

At 62.3 to 63.4': Grades to fine to medium Poorly Graded Sand with Silt

At 63.4 to 64.7': Distinct oxidized laminations defined by varying color and oxidation

At 65.0 to 66.1': Appears moist, some irregular, lightly cemented pockets

Silty Sand, fine grained; varying color, mainly light brownish gray (10Y 6/2) toyellowish brown (10YR 5/8); appears very moist and dense; variable mottling andlaminations; lower contact is sharp

SAN PEDRO FORMATION [Qsp] At 69.2': Marker Bed MB - Clay bed (½ inch thick), oxidized; strong brown (7.5YR5/8)Silty Sand, fine grained; light greenish gray (10Y 7/1); appears moist and dense; lowercontact is sharpAt 69.4 to 70.0': Wavy, Sandy Silt laminations; light olive gray (5Y 6/2)At 71.0 to 72.4': Becomes light olive gray (5Y 6/2); appears very moist

At 72.5 to 73.2': Becomes light yellowish brown (2.5Y 6/4)

At 73.2 to 73.8': Becomes mottled, light olive gray (5Y 6/2) to light yellowish brown(2.5Y 6/4)At 73.8': Highly oxidized; yellowish red (5YR 5/6) laminationAt 73.8 to 74.6': Numerous oxidized strong brown (7.5YR 5/6) laminations; trace finegravel (Jsm)At 74.6': Clay bed (½ to 1 inch thick), olive brown (2.5Y 4/4)At 75.0 to 75.5': Marker Bed MA - Some subrounded gravel, clasts 5 to 15%, up to¾ inches in size, mainly slate (Jsm) and quartzitePoorly Graded Sand, fine grained; light greenish gray (10Y 7/1); appears damp anddense; trace mica

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Project No.: 4953-10-1561LOG OF BORING

(CONTINUED ON FOLLOWING FIGURE)

Figure: T8-B3dMTA Westside Subway Extension

Los Angeles, California

BORING NO.

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(Continued)

DRILLING COMPANY/DRILLING EQUIPMENT

See Plate 3HOLE DIAMETER8 inches

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Martini Drilling / CME 75DRILLING METHODHollow-Stem AugerDATES DRILLED5/25/11

Not encountered during drilling

BOREHOLE LOCATION

292 feetGROUNDWATER READINGS

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END OF BORING AT 80 FEET

NOTES:Boring backfilled with cement/bentonite grout from bottom up and patched.

-Munsell colors listed in order of predominance (most predominant color first).-Where observed, contacts and bedding appear subhorizontal unless otherwise noted.-Non-recovery intervals are assumed to occur at the bottom of run unless otherwisenoted.-Santa Monica Slate (Jsm) clasts are generally very dark gray, subangular tosubrounded slate unless otherwise noted. Modelo Formation (Tm) clasts are generallywhite to pale yellow to tan, subangular to subrounded shale and sandstone unlessotherwise noted.-The term "clasts" herein describes gravel-size rock fragments (larger than ¼ inch).-Beds are generally massive unless otherwise noted.


Figure: T8-B3eMTA Westside Subway Extension


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CL/ML

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9 inches of asphalt concrete over 4 inches of baseHand Augered to 6 feet

FILL [Af]Silty Clay and Clayey Silt, variable fine to coarse grained sand, trace fine gravel;varying color, mainly dark grayish brown (10YR 4/2); appears moist to very moistand very stiff; occasional more gravelly layers with up to 70% gravel (up to ¾ inch)

At 7.0 to 9.0': No recovery

Clay with Gravel

Clay

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Figure: T8-B4aMTA Westside Subway Extension


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Jet Drilling / CME 75DRILLING METHODHollow-Stem AugerDATES DRILLED5/26/11-5/27/11 and5/31/11


BOREHOLE LOCATION


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CL

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Af Continued


Clay with Gravel


At 29.0 to 31.5': No sampling



At 36.5': Large concrete fragment



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Figure: T8-B4bMTA Westside Subway Extension


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Af Continued

At 43.0 to 43.2': Concrete fragments, up to 1½ inchesLAKEWOOD FORMATION [Qlw]Silty Sand, fine to medium grained, trace clay; yellowish brown (10YR 5/4); appearsmoist and dense; well sorted; lower contact occurs between runsAt 44.0 to 46.0': No recovery


At 48.0 to 48.3': Grades to Poorly Graded Sand, fine grained; light yellowish brown(2.5Y 6/4)Clayey to Silty Sand, fine grained, dark brown (7.5YR 3/4); appears very moist anddense; well sorted; lower contact occurs between runs

At 50.0 to 51.5': Becomes yellowish brown (10YR 3/2)

At 50.8 to 51.0': Manganesium oxide-rich bed

At 51.5 to 51.9': Distinct laminations defined by varying oxidation, silt andmanganese oxide contentAt 51.9 to 53.0': No recovery

At 53.0 to 53.4': Clay, trace coarse gravel (Jsm); brown (7.5YR 4/4); appears verymoist and very stiffClayey, Silty Sand with Gravel, fine grained, clasts 25 to 35%, up to 1½ inches,mainly subrounded granitic rock and slate; brown (7.5YR 4/4); appears moist anddense; lower contact occurs between runsLaminated beds of fine to medium grained Silty Sand, varying colorAt 54.0 to 56.0': No recovery

Marker Bed MC - Silty Gravel, clasts 50 to 60%, up to 1½ inches, mainlysubangular to subrounded granitic rock, meta-basalt and slate, fine to coarse silty sandmatrix; strong brown (7.5YR 4/6); appears damp and dense; lower contact occursbetween runsRefusal at 57.0' on gravel/cobbles.END OF BORING AT 57.0 FEET


-Munsell colors listed in order of predominance (most predominant color first).-Where observed, contacts and bedding appear subhorizontal unless otherwise noted.-Non-recovery intervals are assumed to occur at the bottom of run unless otherwise

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Figure: T8-B4cMTA Westside Subway Extension


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noted.-Santa Monica Slate (Jsm) clasts are generally very dark gray, subangular tosubrounded slate unless otherwise noted. Modelo Formation (Tm) clasts are generallywhite to pale yellow to tan, subangular to subrounded shale and sandstone unlessotherwise noted.-The term "clasts" herein describes gravel-size rock fragments (larger than ¼ inch).-Beds are generally massive unless otherwise noted.

Boring redrilled offset approximately 1-foot south-west from original boring locationwhere drilling hit refusal. Drilled down 55-ft and hit refusal during drilling. Possiblecobbles and gravels layer.




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CL

ML/CLMLML/CL

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100

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18 inches of asphaltic concreteHand augered to 5.5 feet

FILL [Af]Clay, trace coarse sand; dark brown (10YR 3/3); appears moist and very stiff;occasional more sandy beds; lower contact is sharp

NOTE:Jsm = Santa Monica SlateTm = Modelo FormationSee end of log for more detailed clast descriptions

Silty Clay and Clayey Silt, variable fine sand, trace coarse sand and fine gravel (Jsmand Tm); yellowish brown (10YR 5/4); appears very moist and stiffAt 6.3 to 6.7': Organic-rich bed, Sandy to Clayey Silt, 10 to 15% fine gravel up to ½inch; very dark gray (10YR 3/1); appears very moist and stiff

At 7.5 to 8.2': Clayey, Silty Sand

At 9.8 to 10.2': Increasing organic content and gravelClay and Silty Clay, trace coarse sand (Jsm and Tm); dark brown (7.5YR 3/2);appears very moist and medium stiff to stiff; organic-rich

At 12.6 to 13.0': Decreasing organics

At 16.9 to 20.0': Organic-rich zones/layers become infrequent, sand increases,occasional sandy silt layers

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Af ContinuedAt 20.3 to 21.1': Becomes mottled, strong brown (7.5YR 5/6) to grayish brown (10YR5/2)

OLDER ALLUVIAL FAN DEPOSITS [Qfo]Clayey to Sandy Silt, alternating gravelly and non-gravelly beds; non-gravelly bedsyellowish-brown (10YR 5/6), gravelly beds very dark grayish brown (10YR 3/2);clasts 20 to 30%, up to ¾ inch, mainly subangular to subrounded slate (Jsm), shale(Tm) and sandstone (Tm), organic-rich; appears moist to very moist and very stiff;typical bed thickness 4 to 6 inches, lower contact is narrowly gradational

Clayey, Silty Sand, fine grained, trace coarse sand and fine gravel (Jsm and Tm); darkbrown (7.5YR 3/4); appears moist and dense

OLDER FLUVIAL/ALLUVIAL FAN DEPOSITS (Qfof1/Qfo)Silty Gravel, clasts 30 to 60%, up to 2 inches; mainly subangular to subrounded slate(Jsm), some shale (Tm), sandstone (Tm), quartzite and granitic rock also observed;matrix is fine to coarse silty sand; color variable, generally dark brown (7.5YR 3/4);appears moist and dense; lower contact is gradationalAt 26.5 to 27.8': Clayey, Silty Sand, fine grained, trace coarse sand (Jsm and Tm);dark brown (7.5YR 3/4); appears moist and dense


At 30.0 to 32.3': Matrix becomes fine to coarse silty, clayey sand

At 32.3 to 33.3': Silty, Clayey Sand with Gravel, fine to medium grained, clasts15-30%, up to ½ inch, mainly subangular to subrounded slate (Jsm), shale (Tm) andsandstone (Tm); dark brown (7.5YR 3/4); appears very moist and dense; graveldecreases with depth, lower contact is sharpESTUARINE DEPOSITS [Qe]Clay, trace coarse sand (Jsm and Tm); mottled, yellowish brown (10YR 5/6) tograyish brown (2.5Y 5/2); appears moist and very stiff to hard; trace manganese oxideflecksAt 34.4 to 35.0': Silty, Clayey Sand with Gravel, fine to coarse grained, clasts 15 to20%, up to ½ inch, mainly subangular to subrounded slate (Jsm), shale (Tm) andsandstone (Tm); dark grayish brown (10YR 4/2/); appears moist and dense; uppercontact is sharp, irregularAt 35.2 to 38.5': Grades to Clayey Silt and Silty Clay, variable fine sand

At 38.0 to 40.0': Varve-like bedding

At 39.7 to 40.2': Manganese oxide flecks increase to 5 to 10%

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Qe ContinuedMarker Bed ME - Clayey Silt and Silty Clay, variable fine sand; dark grayish brown(10YR 4/2) to brown (10YR 4/3); appears very moist and stiff; lower contact is sharp

LAKEWOOD FORMATION [Qlw]Silty Sand, very fine grained; pale brown (2.5Y 7/3); appears moist and denseAt 44.6 to 44.8': Clay, brown (10YR 4/3); appears moist and very stiff; upper andlower contacts are sharpSilty Sand, very fine grained; mottled, pale brown (2.5Y 7/3) to yellowish brown(10YR 5/8); appears moist and dense; well sorted; lower contact is sharpAt 44.8 to 45.5': Highly weathered zone, weathering decreases and coarsens slightlywith depth

At 51.2 to 52.1': Little or no mottling; pale brown (2.5Y 7/3)

Poorly Graded Sand with Silt, fine to medium grained; color variable, generally palebrown (2.5Y 7/4) to yellowish brown (10YR 5/8); appears damp to moist and dense;abundant non-micaceous, mafic sand grainsAt 52.8 to 55.0': No recovery

At 55.4 to 55.9' and 56.6 to 57.8': Becomes highly oxidized, strong brown (7.5YR5/8) to yellowish red (5YR 4/6)At 55.9 to 56.1': Color becomes dark brown (7.5YR 3/2), abundant mafic sand grains

Marker Bed MC - Silty Sand with Gravel, fine to coarse grained; color variable;appears damp and dense; clasts 30 to 40 %, up to 1 inch; mainly subrounded graniticrock and quartzite, lower contact occurs between runs

At 58.2 to 60': No recovery

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Qlw ContinuedSilty Sand with Gravel, fine to coarse grained, clasts 30 to 50%, most up to 1 inch,maximum 3 inches; mainly subrounded to rounded granitic rock, quartzite andsubangular slate (Jsm); varying color, generally strong brown (7.5YR 5/6); appearsmoist and dense; lower contact is narrowly gradational

Silty Sand, fine grained; mottled, light yellowish brown (2.5Y 6/3) to yellowishbrown (10YR 5/8); appears moist and dense; lower contact is narrowly gradationalAt 63.2 to 65': No recovery

Poorly Graded Sand with Silt, fine to medium grained; mottled, pale brown (2.5Y 8/2)to strong brown (7.5YR 5/8); appears moist and dense


Silty Sand, fine grained; mottled, light yellowish brown (2.5Y 6/3) to strong brown(7.5YR 5/8); appears moist and dense; well sorted; lower contact is sharp

At 73.6 to 75.0': Mottled, light yellowish brown (2.5Y 6/3) to brownish yellow (10YR6/8)

SAN PEDRO FORMATION [Qsp]At 75.0': Marker Bed MB - Oxidized Clay/Silt bed (<1/2 inch thick), oxidized redSilty Sand, fine grained; light greenish gray (10Y 7/1); appears moist and dense

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6 inches of asphaltic concrete over 18 inches of base

FILL [Af]Clay, some fine to coarse sand and trace gravel; brown

NOTE:Jsm = Santa Monica SlateTm = Modelo FormationSee end of log for more detailed clast descriptions

Poor recovery 5.0 to 19.0'Clayey Sand, trace gravel; light olive brown (2.5Y 5/4); appears moist and mediumdenseAt 5.9 to 9.0': No recovery

Clay with gravel; dark grayish brown (2.5Y 4/2); appears moist and stiff



FLUVIAL DEPOSITS [Qfofl]Silty Gravel, clasts 50 to 60 %, up to 1½ inches, mainly angular to subangular slate(Jsm) sandstone (Tm); granitic, volcanic and other, matrix is fine to coarse silty sand;

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Tri Country Drilling / Deidrich D-120DRILLING METHODHollow-Stem AugerDATES DRILLED6/16/11-6/17/11

Encountered at 69-ft during drilling

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Geologist: ME/MW/MFPrepared/Date: WL/PK 10/13/2011Checked/Date: MF/MW 10/13/2011

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dark gray (10YR 4/1); slightly cementedQfofl Continuedappears dry to damp and dense; lower contact is sharp


OLDER ALLUVUAL FAN DEPOSITS [Qfo]Silt with varying fine sand; color variable, mainly very dark brown (7.5YR 2.5/3);appears moist and stiff

Clayey to Sandy Silt; trace to some coarse sand and fine gravel (Jsm and Tm)decreasing with depth, light olive brown (2.5Y 5/6); appears moist and medium dense;some clayier layers, color becomes dark yellowish brown (10YR 4/4); lower contact isgradationalAt 26.5 to 29.0': No recovery

ESTUARINE DEPOSITS (Qe)Silt with varying fine sand; very dark brown (7.5YR 2.5/3); appears moist and stiff;some varve like bedding


At 34.5 to 36.0': Grades to Clayey Silt with Sand, prominent varve-like bedding

At 36.0 to 36.3': Silty Sand layer (2 inches thick), fine grained; fine gravelAt 36.3 to 39.0': No recovery

Silty Sand to Sandy Silt, very fine grained; light olive brown (2.5Y 5/4); appears moistand medium dense; generally thickly bedded, occasional faint varve-like bedding

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Qe ContinuedAt 40.0 to 40.4': Sand with Gravel bed, fine to coarse grained


At 49.5' Clay Silt bed (½ inch thick); dark reddish brownAt 45.9 to 47.0': Silty Sand, very fine grained, thinly bedded clayey and silty layers;light olive brown 2.5Y 5/4); appears moist and dense; some beds slightly cemented


Silty Sand as above, becomes coarser with depthClayey to Sandy Silt; yellowish brown (10YR 5/4); prominent varve like bedding;coarsens with depth

Sandy Silt to Silty Sand, fine grained, trace coarse sand; light olive brown (2.5Y 5/4),appears moist and dense/stiff, some varve-like bedding

At 54.6 to 55.3': Becomes light yellowish brown (2.5Y 6/3); coarsens to fine sand

FLUVIAL DEPOSITS [Qfofl]Silty Sand with Gravel, fine to coarse grained, coarsens with depth, increasing gravelcontent, clasts maily Jsm and Tm; color variable; appears moist and denseAt 55.7 to 56.4': Sand, very fine grained; light olive brown (2.5Y 5/6); appears moistand denseAt 57.0 to 59.0': No recovery

Silty Gravel, clasts 60 to 70%, up to 2 inches, mainly angualr to subangular graniticrock and quartzite, trace slate (Jsm) and shale (Tm), matrix is fine to coarse silty sand;olive brown (2.5Y 4/3); appears dry; depth of contacts uncertain due to poor recovery

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JEC

T_D

IREC

TOR

IES\

4953

\201

0\10

1561

_MET

RO

_WES

TSID

E_EX

TEN

SIO

N\6

.2.3

.2 F

AU

LT H

AZA

RD

INV

ESTI

GA

TIO

N\3

.2 A

LL F

IELD

NO

TES\

GIN

T LO

GS\

1015

61-T

RA

NSE

CT

8.G

PJ 1

0/14

/11

GP

SP-SM

SM

SP-SM

SP-SM

SM

MLSP-SM

50

60

48

70

Qfofl Continued


Depth of contact uncertain due to poor recovery

LAKEWOOD FORMATION [Qlw]At 64.0 to 64.5': Sandy SiltPoorly Graded Sand with Silt, fine to medium grained, coarsens downward; lightyellowish brown (2.5Y 6/3); appears moist and dense; lower contact occurs betweenruns

Marker Bed MC - Silty Sand with Gravel, fine grained, clasts 15 to 20%, up to ½inch, mainly subrounded slate (Jsm) quartzite and granitic rock; color variable;appears moist and dense; lower contact occurs between runsAt 67.0 to 69.0': No recovery

At 69': Groundwater encountered during drillingAt 69.0 to 74.0': Poor recovery sample appears wet/disturbed

Poorly Graded Sand with Silt, fine grained; light olive yellow (2.5Y 6/6) to light olivebrown (2.5Y 5/4); appears wet and dense; lower contact occurs between runs


At 74.0 to 76.0': Grades to very fine Silty Sand

Silt interbeds, thin; olive (5Y 4/3); dips 15 to 20 degrees; lower contact is sharpPoorly Graded Sand with Silt; pale yellow (5Y 7/6); appears moist and dense


At 79.0 to 80.2': Sample appears wet

12

13

14

15

2

3

3

3





BORING NO.

DEP

TH (f

t)

65

70

75

80

(Continued)



GROUND EL.

T8-B6

ELEV

ATI

ON

(ft)

220

215

210

205

THIS

REC

OR

D IS

AN

INTE

RPR

ETA

TIO

N O

F SU

BSU

RFA

CE

CO

ND

ITIO

NS

AT

THE

EXPL

OR

ATI

ON

LO

CA

TIO

N. L

ATI

TUD

E A

ND

LO

NG

ITU

DE

OF

BO

RIN

G L

OC

ATI

ON

SH

OW

N O

N L

OG

S A

RE

APP

RO

XIM

ATE

.SU

BSU

RFA

CE

CO

ND

ITIO

NS

AT

OTH

ER L

OC

ATI

ON

S A

ND

AT

OTH

ER T

IMES

MA

Y D

IFFE

R.

INTE

RFA

CES

BET

WEE

N S

TRA

TA A

RE

APP

RO

XIM

ATE

. TR

AN

SITI

ON

S B

ETW

EEN

STR

ATA

MA

Y B

E G

RA

DU

AL.

% R

ECO

VER

Y

SAM

PLE

LOC

.



BOREHOLE LOCATION


RU

N #

BO

X #


MET

RO

SO

IL C

OR

E S

:\701

31 G

EOTE

CH

\GIN

TW\F

AU

LT_I

NV

ESTI

GA

TIO

N_W

SE_L

IBR

AR

Y A

MEC

OC

TOB

ER20

11 (2

).GLB

G:\P

RO

JEC

T_D

IREC

TOR

IES\

4953

\201

0\10

1561

_MET

RO

_WES

TSID

E_EX

TEN

SIO

N\6

.2.3

.2 F

AU

LT H

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RD

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GA

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.2 A

LL F

IELD

NO

TES\

GIN

T LO

GS\

1015

61-T

RA

NSE

CT

8.G

PJ 1

0/14

/11

SP

SP-SM

SM

56

54

96

Qlw Continued

SAN PEDRO FORMATION [Qsp]Poorly Graded Sand with Silt, fine to medium grained; dark grayish green (5Y 3/2);appears moist and dense; thickly bedded; oxidizes upon exposure to air; lower contactis sharpAt 81.8 to 84.0': No recovery


At 91.8 to 93.0': Trace subrounded gravel; mostly granitic

At 93.0 to 93.8': Becomes very fine grained; dark grayish green (5GY 5/2); appearswet and medium dense; bedding dip near horizontal




16

17

18




BORING NO.

DEP

TH (f

t)

85

90

95

100

(Continued)



GROUND EL.

T8-B6

ELEV

ATI

ON

(ft)

200

195

190

185

THIS

REC

OR

D IS

AN

INTE

RPR

ETA

TIO

N O

F SU

BSU

RFA

CE

CO

ND

ITIO

NS

AT

THE

EXPL

OR

ATI

ON

LO

CA

TIO

N. L

ATI

TUD

E A

ND

LO

NG

ITU

DE

OF

BO

RIN

G L

OC

ATI

ON

SH

OW

N O

N L

OG

S A

RE

APP

RO

XIM

ATE

.SU

BSU

RFA

CE

CO

ND

ITIO

NS

AT

OTH

ER L

OC

ATI

ON

S A

ND

AT

OTH

ER T

IMES

MA

Y D

IFFE

R.

INTE

RFA

CES

BET

WEE

N S

TRA

TA A

RE

APP

RO

XIM

ATE

. TR

AN

SITI

ON

S B

ETW

EEN

STR

ATA

MA

Y B

E G

RA

DU

AL.

% R

ECO

VER

Y

SAM

PLE

LOC

.



BOREHOLE LOCATION


RU

N #

BO

X #


MET

RO

SO

IL C

OR

E S

:\701

31 G

EOTE

CH

\GIN

TW\F

AU

LT_I

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ESTI

GA

TIO

N_W

SE_L

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AR

Y A

MEC

OC

TOB

ER20

11 (2

).GLB

G:\P

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JEC

T_D

IREC

TOR

IES\

4953

\201

0\10

1561

_MET

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_WES

TSID

E_EX

TEN

SIO

N\6

.2.3

.2 F

AU

LT H

AZA

RD

INV

ESTI

GA

TIO

N\3

.2 A

LL F

IELD

NO

TES\

GIN

T LO

GS\

1015

61-T

RA

NSE

CT

8.G

PJ 1

0/14

/11

APPENDIX C-2 LOGS OF BORINGS – CURRENT GEOTECHNICAL INVESTIGATION

Amec, Current Geotechnical Investigation

Rotary Wash Borings:

G-154, G-156, G-159, G-161, G-162, G-164, G-165, G-166A/B, G-168, G-169, G-171, G-173, G-174A, and G-200Alt - Lab Testing

Sonic Core Borings:

S-110 and S-111 – Lab Testing

Cone Penetrometer Tests:

C-115, C-117, and C-118, C-119, C-119A, C-120, C-120A, and C-120A1

EL

EV

AT

ION

(ft

)

270

265

260

255

250

245

240

235

16.2

16.2

21.9

26.8

16.6

17.3

19.1

13.4

17.1

21.6

78

46

ML

ML

CL

ML

CL

SM

CH

9.3

5.1

8.6

11.8

9.2

8.7

12.2

5.3

11.6

10.9

8

16

90/10"

88/10"

55

20

103

-

100

-

114

110

-

113

-

103

24

14

26

42

Grass Surface

FILL [Af]SANDY SILT - moist, brown to dark brown

QUATERNARY YOUNGER ALLUVIUM [Qal]

SILT with SAND - medium stiff, moist, dark brown, slightlyporous, some clay

SANDY LEAN CLAY - very stiff, moist, dark brown

Becomes stiff, dark olive brown, trace sand

SILT with SAND - stiff, moist, gray, some clay

Becomes hard

QUATERNARY OLDER ALLUVIUM [Qalo]

LEAN CLAY with SAND - very stiff to hard, moist, brownand gray

Some thin layers of Silty Sand

Trace gravel (up to 3/8 inch in size), thin layer ofSilty Sand

SILTY SAND - dense, moist, brown, fine to medium-grained,trace gravel

FAT CLAY - very stiff, moist, gray, trace sand

SA

MP

LE

LO

C.

Sta 696+10, Lt 10 feet

HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

C & L Drilling / Mayhew 1000

DRILLING METHOD

Rotary Wash

DATES DRILLED

2/9/2011 - 2/10/2011

GROUND-WATER READINGSDrilling mud bailed on 2/9/2011. Ground-water level measured at 50 feet belowthe ground surface on 2/10/2011.

BOREHOLE LOCATION


274 feet

G-154

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

40-1

60).

GP

J 1

0/3

/11

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.

Field Tech: ARPrepared/Date: JF 4/4/2011Checked/Date: LT/PE 9/20/2011

Project No.: 4953-10-1561


Figure: A-2.48a

MTA Westside Subway ExtensionLos Angeles, California

Sa

nta

Mo

nic

a/C

entu

ty C

ity

Sta

tio

n

EL

EV

AT

ION

(ft

)

230

225

220

215

210

205

200

195

16.9

12.6

17.3

11.1

9.1

10.3

1.7

10.3

30.1

18.5

21.6

26.3

21.9

24.0

27.1

33.7

31

24

14

16

ML

SC

CL

SM

GW

GC

GW

SM

ML

CL

SM

ML

CL

ML

CL

10.0

11.4

7.2

12.0

10.2

11.8

8.5

10.2

10.5

10.1

5.6

9.8

7.8

9.2

68

85/8"

68

87

36

37

32

32

-

115

-

118

-

129

-

119

-

110

-

99

-

93

-

87

26

37

58

83

23

29

25

39

SILT - very stiff, moist, brown and gray, trace sand, tracegravel (up to 1/4 inch in size), some clay

CLAYEY SAND with GRAVEL - very dense, moist, brownand gray, fine-grained, gravel (up to 3/4 inch in size)

LEAN CLAY with GRAVEL - hard, moist, brown and gray,gravel (up to 1/2 inch in size)

Coarse gravel (6 inch layer)

SILTY SAND with GRAVEL - very dense, moist, brown andgray, fine to coarse-grained, gravel (up to 1/2 inch in size)

WELL GRADED GRAVEL - very dense, moist, gray, gravel(up to 3/4 inch in size)

CLAYEY GRAVEL with SAND - very dense, wet, brown, fineto coarse-grained, gravel (up to 3/4 inch in size)

WELL GRADED GRAVEL - very dense, brown, gravel (up to1 inch in size), very little recovery

SILTY SAND with GRAVEL - very dense, wet, brown andgray, fine to coarse-grained, gravel (up to 3/4 inch in size)

SILT - very stiff, wet, olive brown, trace sand, trace iron oxidestains, some clay

LEAN CLAY with SAND - very stiff to hard, moist, brownand gray

Iron oxide stains

SILTY SAND - dense, wet, olive brown, fine-grained

SANDY SILT - very stiff, very moist, olive brown, some clay

LEAN CLAY - very stiff, moist, olive brown

SILT - hard, moist, brown and gray, some clay

Thin layer of Silty Sand, fine-grained

LEAN CLAY with SAND - very stiff, moist, olive gray

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/9/2011 - 2/10/2011


BOREHOLE LOCATION


274 feet

G-154(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

40-1

60).

GP

J 1

0/3

/11

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.48b


Sa

nta

Mo

nic

a/C

entu

ty C

ity

Sta

tio

n

EL

EV

AT

ION

(ft

)

190

185

180

175

170

165

160

155

21.4

33.2

17.4

SM

CL

8.0

7.2

8.1

28

-

93

-

43

36

SILTY SAND - dense, wet, grayish brown, fine-grained

LEAN CLAY - very stiff, moist, dark gray, trace sand

Becomes hard, brown and gray, with sand,trace gravel (up to 1 inch in size), iron oxide stains

END OF BORING AT 86½ FEET

NOTES:

Hand augered upper 6 feet to avoid damage to utilities.Borehole grouted with cement-bentonite slurry.

"N" Value Standard Penetration Test: Number of blowsrequired to drive the SPT sampler 18 inches using a140 pound automatic hammer falling 30 inches

*Number of blows required to drive the Crandall Sampler12 inches using a 300 pound hammer falling 18 inches

**Photo Ionization Detector used for OVA readings

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/9/2011 - 2/10/2011


BOREHOLE LOCATION


274 feet

G-154(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

40-1

60).

GP

J 1

0/3

/11

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561 Figure: A-2.48c


EL

EV

AT

ION

(ft

)

280

275

270

265

260

255

250

245

9.6

17.3

15.7

16.1

33.5

15.4

14.2

13.7

12.0

15.9

23.6

21.8

31.2

-

36

42

90

SM

SM

CL

SC

CL-ML

SM

ML

SM

ML

CH

CL

1.9

2.1

4.7

1.7

3.2

2.1

2.5

1.5

2.1

1.2

2.6

1.2

2.8

1.4

12

17

11

14

28

26

16

32

-

106

-

108

-

104

-

117

-

112

-

100

-

-

12

15

14

20

20

17

8-inch thick Grass Surface, No Base CourseFILL [Af]

SILTY SAND - moist, brown, fine to medium-grained, somegravel, layer of base course


SILTY SAND with GRAVEL - loose, moist, brownish red,fine to coarse-grained, fine gravel (up to 1/4 inch in size)

Becomes medium dense, trace gravel

SANDY LEAN CLAY - stiff, moist, brown, fine to mediumsand

CLAYEY SAND - loose, moist, brown, fine tomedium-grained, some coarse


SILTY CLAY - stiff, moist, brown, trace fine sand

SILTY SAND - medium dense, moist, olive brown, fine tomedium-grained, some coarse, trace fine gravel (up to 1/2 inchin size)

SILT - stiff, moist, brown, some fine sand, thin layers of SiltyClay

SILTY SAND - medium dense, moist, brown, fine tomedium-grained, some gravel (up to 1/4 inch in size)

Trace gravel (up to 1/2 inch in size)

SILT - stiff, moist, brown, some fine sand, some clay

FAT CLAY - very stiff, moist, dark brown, trace fine sand

LEAN CLAY with SAND - hard, moist, brown, very finesand, trace fine gravel

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/14/2011 - 2/15/2011

GROUND-WATER READINGSGround-water level measured at 27 feet and 45 feet below the ground surface inshallow and deep monitoring wells, respectively on 6/10/2011. See last page ofthis boring for details.

BOREHOLE LOCATION


282 feet

G-156

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

40-1

60).

GP

J 1

0/3

/11

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.49a


EL

EV

AT

ION

(ft

)

240

235

230

225

220

215

210

205

26.4

-

26.6

16.2

18.3

14.5

22.0

7.2

13.0

13.5

15.2

9.4

21.2

23.5

2.1

15.5

82

63

58

21

19

28

CL

SM

ML

SM

GW

SM

CL-ML

SM

ML

2.8

3.6

1.0

2.3

1.0

2.8

1.5

2.5

1.4

2.1

1.0

2.4

0.8

1.5

0.8

26

46

51

65/6"

75/6"

100/10"

47

38

-

-

-

110

-

113

-

118

-

112

-

123

-

96

-

116

23

25

25

92/11"

76

81

65

57/6"

Becomes very stiff

(Sample not recovered)

SANDY LEAN CLAY - hard, moist, light brown, fine sand

Very stiff, trace gravel (up to 3/8 inch in size)

SILTY SAND - dense, very moist, brown, fine tomedium-grained, some coarse

SANDY SILT - moist, brown, fine sand

SILTY SAND with GRAVEL - very dense, very moist, brown,fine to coarse-grained, gravel (up to 1/4 inch in size)

Gravel (up to 1 inch in size)

Gravel (up to 3/4 inch in size)

WELL GRADED GRAVEL - very dense, wet, fine tocoarse-grained, gravel (up to 1 inch in size)

SILTY SAND - very dense, wet, brown, fine to coarse-grained,trace gravel (up to 1/2 inch in size)

SILTY CLAY - hard, moist, grayish brown, trace fine sand

SILTY SAND with GRAVEL - very dense, moist, brown, fineto medium-grained, slate gravel (up to 2 inches in size)

SILT - hard, wet, grayish dark brown, trace fine sand, tracegravel, some clay

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/14/2011 - 2/15/2011


BOREHOLE LOCATION


282 feet

G-156(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

40-1

60).

GP

J 1

0/3

/11

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.49b


Tu

nn

el

EL

EV

AT

ION

(ft

)

200

195

190

185

180

175

170

165

17.1

23.5

15.6

12.9

-

6.9

21.7

23.5

8.9

CL-ML

CL

SW

ML

CL-ML

CL

2.1

0.8

2.5

0.5

0.7

1.9

1.0

1.5

60

46

81

50

-

101

-

108

-

122

-

100

-

27

41

50

41

28

SILTY CLAY - very stiff, moist, gray, with layers of ClayeySilt

Becomes hard

Trace gravel

SANDY LEAN CLAY - hard, moist, light brown, fine sand


WELL GRADED SAND with GRAVEL - very dense, wet,dark gray, fine to coarse-grained

SANDY SILT - moist, brown to gray, fine sand

SILTY CLAY - hard, moist, brown to gray

Alternating with clay layers

Thin layer of Silty Sand, brown

SANDY LEAN CLAY - hard, moist, gray and brown, finesand

Some gravel

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/14/2011 - 2/15/2011


BOREHOLE LOCATION


282 feet

G-156(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

40-1

60).

GP

J 1

0/3

/11

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.49c


EL

EV

AT

ION

(ft

)

160

155

150

145

140

135

130

125

11.21.4 70121Becomes hard


NOTES:

Montoring well was installed on 6/10/2011. See wellconstruction diagram for G-156.




SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/14/2011 - 2/15/2011


BOREHOLE LOCATION


282 feet

G-156(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

40-1

60).

GP

J 1

0/3

/11

DE

PT

H (

ft)

125

130

135

140

145

150

155

160

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561 Figure: A-2.49d


EL

EV

AT

ION

(ft

)

275

270

265

260

255

250

245

240

16.4

26.0

16.0

16.9

14.2

22.9

18.6

ML

ML

SM

CL

11.3

8.7

7.6

9.4

9.6

8.8

6.5

8/4"

11

31

27

100

-

103

-

116

-

109

14

11

26

12-inch thick Asphalt Concrete over 12-inch thick PortlandCement Concrete, No Base Course

FILL [Af]


SILT with SAND - medium stiff, moist, olive brown and gray

SANDY SILT - stiff, moist, brown and gray

SILTY SAND - loose, wet, brown, fine to medium-grained,trace gravel

SANDY LEAN CLAY - stiff, moist, gray and brown, tracegravel (up to 3/4 inch in size), scattered calcium carbonatenodules

Becomes very stiff, trace gravel (up to 1/4 inch in size)

Decrease in sand content, becomes olive gray,trace iron oxide stains

Becomes brown

SA

MP

LE

LO

C.

Sta 721+84, Lt 519 feet

HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/21/2011 - 2/22/2011

GROUND-WATER READINGSDrilling mud bailed on 2/22/2011. Ground-water level measured at 15 feet belowthe ground surface 10 minutes after bailing of drilling mud.

BOREHOLE LOCATION


276 feet

G-159

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

40-1

60).

GP

J 1

0/3

/11

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.50a


EL

EV

AT

ION

(ft

)

235

230

225

220

215

210

205

200

19.3

21.4

20.8

19.2

20.0

16.6

19.4

36.7

78

50

39

91

MH

CL

SM

CL

SC

CL

SM

8.5

3.9

8.1

8.6

4.3

8.5

7.6

4.8

29

35

71

53

-

103

-

101

-

112

-

87

22

29

43

52

ELASTIC SILT with SAND - very stiff, moist, gray

LEAN CLAY with SAND - hard, moist, brown and gray, tracegravel (up to 1/8 inch in size)

SILTY SAND - very dense, moist, brown, fine tomedium-grained, trace gravel (up to 3/8 inch in size), with clay

SANDY LEAN CLAY - hard, moist, brownish gray

CLAYEY SAND - very dense, moist, brown, fine tocoarse-grained, gravel (up to 3/8 inch in size)

LEAN CLAY - hard, moist, brown, trace sand

SILTY SAND - dense, wet, light brown, fine tomedium-grained, trace gravel

SA

MP

LE

LO

C.

Sta 721+84, Lt 519 feet

HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/21/2011 - 2/22/2011


BOREHOLE LOCATION


276 feet

G-159(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

40-1

60).

GP

J 1

0/3

/11

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.50b


EL

EV

AT

ION

(ft

)

195

190

185

180

175

170

165

160

23.4

16.2

15.7

-

24.5

18.0

19.4

31.3

63

50

CH

SC

SM

ML

CL

5.9

5.0

4.3

-

4.7

5.6

3.6

4.2

48

80/10"

44

51

-

113

-

-

-

111

-

87

74

90/11"

47

37

SANDY FAT CLAY - hard, moist, gray, trace calciumcarbonate nodules, trace gravel


CLAYEY SAND - very dense, moist, gray, fine tomedium-grained, trace iron oxide stains, trace gravel (up to 1/8inch in size)

SILTY SAND - very dense, moist, brown, fine tomedium-grained, some coarse sand and gravel(Sample not recovered)

SANDY SILT - hard, very moist, olive brown, trace iron oxidestains

LEAN CLAY with SAND - hard, moist, gray, some calciumcarbonate nodules

Becomes dark gray

Coarse gravel layer

SA

MP

LE

LO

C.

Sta 721+84, Lt 519 feet

HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/21/2011 - 2/22/2011


BOREHOLE LOCATION


276 feet

G-159(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

40-1

60).

GP

J 1

0/3

/11

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.50c


Tu

nn

el

EL

EV

AT

ION

(ft

)

155

150

145

140

135

130

125

120

26.85.5 -39 Becomes light greenish gray, trace sand


NOTES:

Hand augered upper 6 feet to avoid damage to utilities.Borehole grouted with cement-bentonite slurry and patchedwith asphalt concrete.



**Photo Ionization Detector used for OVA readingsS

AM

PL

E L

OC

.

Sta 721+84, Lt 519 feet

HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/21/2011 - 2/22/2011


BOREHOLE LOCATION


276 feet

G-159(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

40-1

60).

GP

J 1

0/3

/11

DE

PT

H (

ft)

125

130

135

140

145

150

155

160

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.




4-inch thick Asphalt Concrete over 12-inch thick PortlandCement Concrete and 2-inch thick Base Course

FILL [Af]

CLAYEY SAND - moist, gray

SANDY LEAN CLAY - moist, dark brown, trace brickfragments

QUATERNARY YOUNGER ALLUVIUM [Qal]LEAN CLAY - very soft, moist, gray

Becomes stiff, dark olive brown

SILTY SAND with Gravel - medium dense, moist, olivebrown, fine to medium-grained, gravel (up to 1/4" in size),some clay, sample disturbed

LEAN CLAY with Sand - soft, moist, olive brown

SANDY SILT - stiff, wet, olive grayQUATERNARY OLDER ALLUVIUM [Qalo]

SILTY SAND - loose, wet, gray, fine-grained

Becomes medium dense, some gravel(Sample not recovered)

Push

18

4

30

109

-

94

-

10

5

10

15.3

25.4

-

23.5

24.6

27.3

-

SC

CL

CL

SM

CL

ML

SM

SM

0.0

0.0

0.2

0.1

0.0

0.0

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.

Sta 681+50, Rt 20 feet

HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

Bailed drilling mud to 45 feet. Ground-water level measured at 29 feet belowground surface 30 minutes after bailing of drilling mud.

BOREHOLE LOCATION


258 feet

G-161C & L Drilling / Mayhew 1000

DRILLING METHOD

Rotary Wash

DATES DRILLED

2/3/2011 - 2/4/2011

GROUND-WATER READINGS


Figure: A-1.51a

MTA Westside Subway ExtensionLos Angeles, California Project No.: 4953-10-1561

EL

EV

AT

ION

(ft

)

255

250

245

240

235

230

225

220

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.

Field Tech: DWPrepared/Date: JF 3/31/2011Checked/Date: JAG/PE 6/30/2011

LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

SILTY SAND with Gravel - medium dense, wet, grayishbrown, fine to medium-grained, gravel (up to 1/4" in size),with layers of Poorly Graded Sand


Becomes very dense, dark gray, gravel (up to 1" in size)

POORLY GRADED SAND - medium dense, wet, brown, fineto medium-grained

SILT - stiff, moist, brown, trace sand

CLAYEY SAND - wet, olive brown, fine-grained

SILT - hard, moist, olive brown to olive gray

SILTY SAND - wet, olive gray

LEAN CLAY - very stiff, moist, olive gray, trace sand

Becomes hard, gray, trace gravel (up to 1/4" in size)

LEAN CLAY with Sand - very stiff, wet, gray, fine sand

30

11

28

30

-

93

102

106

25

62

50

38

18.0

-

10.8

28.0

16.9

23.0

17.9

21.8

19

17

80

SP

ML

SC

ML

SM

CL

CL

0.0

0.2

0.0

0.0

0.1

0.0

0.0

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


258 feet

G-161(Continued)


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/3/2011 - 2/4/2011



Figure: A-1.51b


EL

EV

AT

ION

(ft

)

215

210

205

200

195

190

185

180

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

LEAN to FAT CLAY - very stiff, wet, olive gray

SANDY LEAN CLAY - very stiff, wet, olive brown to olivegrayish brown

LEAN CLAY - hard, wet, olive brown to olive gray, trace ironoxide stains

POORLY GRADED SAND - dense, wet, brown, fine tomedium-grained

CLAYEY SAND - dense, wet, gray, trace gravel (up to 1/4" insize)

SANDY LEAN CLAY - hard, wet, reddish brown and someolive gray, trace gravel (up to 1/4" in size)

Alternating with layers of Lean Clay with Sand, olive brown

Becomes olive gray and some reddish blue, trace sand

CLAYEY SAND with Gravel - dense, wet, olive brown toreddish brown, medium to coarse-grained, gravel (up to 1/4" insize)

31

36

45

45

111

109

114

124

24

39

46

33

32.1

17.6

28.2

19.9

14.7

15.3

26.3

12.8

66

43

66

CL/CH

CL

CL

SP

SC

CL

SC

0.0

0.0

0.0

0.1

0.0

0.0

0.0

0.0

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


258 feet

G-161(Continued)


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/3/2011 - 2/4/2011



Figure: A-1.51c


EL

EV

AT

ION

(ft

)

175

170

165

160

155

150

145

140

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

POORLY GRADED SAND with Gravel - very dense, wet,gray, gravel (up to 1/2" in size), thin layer of Lean Clay


NOTES:

Hand augered upper 6 feet due to utilities. Borehole groutedwith cement-bentonite slurry and patched with asphaltconcrete.




59 22.2SP

0.1

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


258 feet

G-161(Continued)


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/3/2011 - 2/4/2011


Figure: A-1.51d


EL

EV

AT

ION

(ft

)

135

130

125

120

115

110

105

100

DE

PT

H (

ft)

125

130

135

140

145

150

155

160

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

4-inch thick Asphalt Concrete over 12-inch thick PortlandCement Concrete and 3-inch thick Base Course

FILL [Af] - CLAYEY SAND - moist, brown, with finegravel

QUATERNARY YOUNGER ALLUVIUM [Qal]SANDY LEAN CLAY - moist, brown

LEAN to FAT CLAY - very soft, moist, olive brown, trace finesand

SANDY SILT - soft, moist, olive brownish gray, trace slategravel (up to 1/4" in size)

Becomes olive brown

SANDY LEAN CLAY - soft, moist, olive brown, trace finesand, trace gravel (up to 1/4" in size)

Becomes wet

Becomes very soft, trace sand, trace gravel(up to 1/4" in size)


SANDY LEAN CLAY - stiff, wet, olive brown, trace finesand, trace gravel (up to 1/4" in size)(Sample not recovered)

Trace gravel (up to 1/2" in size)

Push

5

5

12

101

104

91

-

4

Push

12

23.3

18.0

22.2

27.1

30.8

-

21.7

SC

CL

CL/CH

ML

CL

CL

0.0

0.0

0.1

0.2

0.0

0.0

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


251 feet


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/26/2011 - 1/28/2011



Figure: A-1.52a


EL

EV

AT

ION

(ft

)

250

245

240

235

230

225

220

215

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.

Field Tech: DWPrepared/Date: KP/JF 3/28/2011Checked/Date: JAG/PE 6/30/2011

LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

(Sample not recovered)Becomes hard, more gravel

CLAYEY SAND with Gravel - dense, wet, olive brown, gravel(up to 1/2" in size)


CLAYEY SAND - dense, wet, olive brown, fine tocoarse-grained, gravel (up to 1" in size)

SANDY LEAN CLAY - very stiff, wet, olive brown

CLAYEY SAND with Gravel - very dense, wet, olive brown,fine to coarse grained, gravel (up to 1" in size), iron oxidestains

65

51

80/10"

-

-

116

38

40

30

-

7.8

-

13.9

19.8

9.1

27

62

14

SC

SC

CL

SC

0.0

0.0

0.0

0.0

0.0

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


251 feet

G-162(Continued)


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/26/2011 - 1/28/2011



Figure: A-1.52b


EL

EV

AT

ION

(ft

)

210

205

200

195

190

185

180

175

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

Pre

ssu

rem

eter

LEAN CLAY with Sand - very stiff, wet, olive brown, tracegravel (up to 1/2" in size), trace iron oxide stains

SILTY, CLAYEY SAND with Gravel - very dense, wet, olivebrown, fine to coarse-grained, abundant slate gravel (up to1-1/4" in size)

FAT CLAY with Sand - hard, wet, olive gray, fine sand, tracefine gravel

Becomes very stiff, olive brown to olive gray

SANDY LEAN CLAY - hard, wet, olive gray, trace gravel (upto 1/4" in size)

LEAN to FAT CLAY - hard, wet, olive gray, trace sand


With calcium carbonate nodules

POORLY GRADED SAND - medium dense, wet, brown, fineto medium-grained, trace coarse

32

45

29

35

45

73/9"

36

109

109

113

106

-

99

122

92/9"

30

40

19.8

16.0

18.2

20.2

19.2

20.1

20.3

-

26.2

10.8

34

77

58

CL

SC-SM

CH

CL

CL/CH

SP

0.0

0.0

0.0

0.0

0.1

0.0

0.0

0.0

0.0

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


251 feet

G-162(Continued)


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/26/2011 - 1/28/2011



Figure: A-1.52c


EL

EV

AT

ION

(ft

)

170

165

160

155

150

145

140

135

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

Pre

ssu

rem

eter

Becomes very dense, trace gravel (up to 1/4" in size)


NOTES:





6811315.50.0

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


251 feet

G-162(Continued)


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/26/2011 - 1/28/2011


Figure: A-1.52d


EL

EV

AT

ION

(ft

)

130

125

120

115

110

105

100

95

DE

PT

H (

ft)

125

130

135

140

145

150

155

160

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

EL

EV

AT

ION

(ft

)

245

240

235

230

225

220

215

210

12.5

19.4

13.4

-

16.1

21.9

32.0

18.7

22.6

75

59

89

28

CL

CL

ML

ML

SM

SP

SM

0.0

0.0

0.0

0.3

0.0

0.1

0.0

0.0

12

8

18

9

24

116

-

104

-

105

-

90

-

103

10

13

10

17

5-inch thick Asphalt Concrete over 8-inch thick Base Course

FILL [Af]

SANDY LEAN CLAY - moist, dark brown and gray, traceslate gravel (up to 1-1/4 inches in size)


SANDY LEAN CLAY - stiff, dark reddish brown, trace gravel(up to 1/4 inch in size)

Thin layer of Silty Sand

Becomes medium stiff, moist, olive brown

Increase in sand content(Sample not recovered)


SILT with SAND - stiff, moist, olive brown

Becomes dark olive brown, some clay

SILT - medium stiff, moist, dark olive brown, trace fine sand

SILTY SAND - medium dense, moist, gray, fine tomedium-grained, trace gravel (up to 3/8 inch in size)

POORLY GRADED SAND - mediume dense, wet, gray, fineto medium-grained, trace iron oxide stains

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/26/2011 - 1/28/2011


BOREHOLE LOCATION


249 feet

G-164

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.53a


EL

EV

AT

ION

(ft

)

205

200

195

190

185

180

175

170

11.4

10.3

26.7

27.6

21.2

12.6

17.6

19.5

20.1

20.1

17.3

19.4

15

10

91

55

20

12

12

18

SM

GW-GM

CH

CH

SM

SP

SM

SP

0.0

0.0

0.1

0.2

1.0

1.1

1.5

1.2

1.1

1.6

0.9

1.0

57

16

70

90

75

75

-

119

-

97

-

109

-

107

-

105

-

100

54

29

27

50/6"

50/5"

50/4"

SILTY SAND with GRAVEL - medium dense, wet, gray, fineto medium-grained, with silt seams, trace iron oxide stains

Becomes very dense, fine to coarse-grained, gravel(up to 3/4 inch in size)

SILTY SAND - dense, wet, brownish gray, fine tomedium-grained, some coarse sand, trace slate gravel, with4-inch cobble

POORLY GRADED GRAVEL with SILT and SAND - dense,wet, gray, fine to coarse-grained, gravel (up to 1 inch in size)

SANDY FAT CLAY - very stiff, moist, olive green, fine sand,trace iron oxide stains

LAKEWOOD FORMATION [Qlw]

SANDY FAT CLAY - stiff, moist, olive brown and gray, traceslate gravel

Becomes olive gray and greenish gray, calciumcarbonate nodules

SILTY SAND - very dense, moist, light brown, fine tomedium-grained

POORLY GRADED SAND - very dense, wet, light greenishgray, fine to coarse-grained

Some coarse sand

SILTY SAND - very dense, wet, light greenish yellow andgray, fine to medium-grained

POORLY GRADED SAND - very dense, wet, yellowishbrown, fine to medium-grained

Becomes yellowish brown and gray, with coarse sand,with gravel up to (1/2 inch in size)

Becomes yellowish gray

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/26/2011 - 1/28/2011


BOREHOLE LOCATION


249 feet

G-164(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.53b


NV

NV

NV

Tu

nn

el

EL

EV

AT

ION

(ft

)

165

160

155

150

145

140

135

130

-

18.2

24.0

23.8

31.5

16.6

24.7

17.6

22SM

SP

ML

SM

ML

1.2

1.3

1.5

1.9

1.1

0.9

0.9

80

78

75

100

-

101

-

98

-

102

-

111

50/2"

93/11"

95/10"

87

(Sample not recovered)4-inch to 6-inch thick cobble layer

Becomes olive gray, fine to medium-grained, iron oxide stains

SILTY SAND - very dense, wet, olive gray, fine tomedium-grained, iron oxide stains

SAN PEDRO FORMATION [Qsp]

POORLY GRADED SAND - very dense, wet, olive gray, fineto medium-grained, trace silt

Becomes dark gray, fine-grained, trace shell fragments

SANDY SILT - hard, moist, dark gray, with clay

SILTY SAND - very dense, wet, dark gray, fine-grained, traceshell fragments

Trace gravel, trace shell fragments

SANDY SILT - hard, moist, blueish gray, trace shellfragments, with clay

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/26/2011 - 1/28/2011


BOREHOLE LOCATION


249 feet

G-164(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.53c


EL

EV

AT

ION

(ft

)

125

120

115

110

105

100

95

90

22.0

17.6

16.1

10.0

16.9

12.5

14.0

CL

SP-SM

SP

SM

0.8

0.9

0.6

1.0

0.8

0.8

0.7

125

100

100/5"

-

96

-

118

-

116

-

61

50/4"

50/4"

50/5"

LEAN CLAY with SAND - hard, moist, blueish gray

POORLY GRADED SAND with SILT - very dense, moist,blueish gray, fine to medium-grained, trace gravel, organicodor

POORLY GRADED SAND - very dense, moist, blueish gray,fine to medium-grained

Increase in gravel content

Trace organic odor

SILTY SAND - very dense, wet, dark gray, fine tomeduim-grained, some coarse, trace gravel, organic odor


END OF BORING AT 150½ FEETNOTES:Hand augered upper 6 feet to avoid damage to utilities.Borehole grouted with cement-bentonite slurry and patchedwith asphalt concrete




Downhole Test: NV = Noise/Vibration

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/26/2011 - 1/28/2011


BOREHOLE LOCATION


249 feet

G-164(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

125

130

135

140

145

150

155

160

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.




EL

EV

AT

ION

(ft

)

280

275

270

265

260

255

250

245

16.8

24.2

22.7

22.1

17.6

13.1

18.4

15.6

21.1

25.4

49

48

SP

SM

CL

SP

SC

CL

SC

SM

CL

0.3

0.1

0.1

0.2

0.1

0.0

0.0

0.0

0.1

0.1

Push

10

12

26

12

109

-

101

-

106

-

112

-

101

-

9

11

23

20

15

4-inch thick Asphalt Concrete, No Base Course

FILL [Af]POORLY GRADED SAND - moist, fine to medium-grained,with silt and clay, trace gravel (up to 1½ inches in size)


SILTY SAND - moist, brown, fine to coarse-grained, trace finegravel

LEAN CLAY - stiff, moist, light brown

POORLY GRADED SAND - loose, moist, brown, fine tocoarse-grained

CLAYEY SAND - loose, moist, brown, fine-grained, tracegravel (up to 3/8 inch in size)

Thin layer of Sandy Silt

SANDY LEAN CLAY - stiff, moist, reddish brown, tracegravel (up to 1/4 inch in size)

Trace sand

CLAYEY SAND - medium dense, moist, brown, fine tomedium-grained, trace gravel (up to 1/2 inch in size)


SILTY SAND - medium dense, moist, brown, fine tomedium-grained

LEAN CLAY - stiff, moist, brown

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

3/5/2011 and 3/19/2011

GROUND-WATER READINGSGround-water level measured at 26 feet and 64½ feet below the ground surfacein shallow and deep monitoring wells, respectively on 4/22/2011. See last pageof this boring for details.

BOREHOLE LOCATION


281 feet

G-165

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.

Field Tech: DWPrepared/Date: JF 5/11/2011Checked/Date: LT/RM 9/20/2011

Project No.: 4953-10-1561


Figure: A-2.54a


EL

EV

AT

ION

(ft

)

240

235

230

225

220

215

210

205

19.6

24.8

28.9

18.4

18.9

17.3

21.0

31.4

19.4

25.5

37.5

16.4

14.5

16.9

76

58

77

15

SC

CL

SM

CL

SM

CL

SM

0.1

0.0

0.0

0.0

0.0

0.0

0.0

0.1

0.0

0.0

0.1

0.0

0.2

16

15

30

24

18

26

50/6"

97

-

95

-

105

-

101

-

97

-

82

-

105

-

17

41

36/10"

17

28

68/11"

95/11"

CLAYEY SAND - medium dense, moist, brown and gray,fine-grained

LEAN CLAY with SAND - very stiff, moist, brown, tracegravel (up to 3/8 inch in size)

SILTY SAND - medium dense, moist, brown, fine tomedium-grained

LEAN CLAY - hard, moist, brown

Trace fine sand

Alternating with layers of Sandy Lean Clay,trace gravel (up to 3/8 inch in size)

SILTY SAND - dense, moist, brown, fine-grained

LEAN CLAY - very stiff, moist, light brown, with fine sand

With calcium carbonate nodules and iron oxidestains

With sand

Becomes olive gray to olive brown, trace ironoxide stains

Becomes hard


SILTY SAND - very dense, moist, gray, fine-grained

Becomes light brown and gray

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

3/5/2011 and 3/19/2011


BOREHOLE LOCATION


281 feet

G-165(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.54b


NV

NV

NV

Tu

nn

el

EL

EV

AT

ION

(ft

)

200

195

190

185

180

175

170

165

19.1

23.9

18.2

20.7

23.8

15.9

14.1

24.3

22.6

26.1

-

20.2

18.8

28

32

CL

SM

SC

SP

0.1

0.2

0.2

1.1

1.2

0.6

0.4

0.1

0.1

0.0

0.3

0.0

80

79/10"

56

75/10"

42/10"

50/3"

60/10"

94

-

100

-

99

-

108

-

99

-

-

-

106

90/11"

88/10"

97/11"

63

91

50/10"

Becomes yellowish brown, trace medium sand,trace silt

Becomes dark gray, fine to coarse-grained

LEAN CLAY - hard, moist, greenish gray, trace fine sand

SILTY SAND - very dense, moist, olive brown to gray, fine tomedium-grained

Becomes greenish gray to gray, trace iron oxide stains

Becomes yellowish brown

Trace coarse sand

Brown to olive brown, fine-grained

Becomes dense

CLAYEY SAND - very dense, moist, brown to olive brown,fine-grained



POORLY GRADED SAND - very dense, moist, gray,fine-grained

Trace coarse sand

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

3/5/2011 and 3/19/2011


BOREHOLE LOCATION


281 feet

G-165(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.54c


Tu

nn

el

EL

EV

AT

ION

(ft

)

160

155

150

145

140

135

130

125

27.2

17.5

14.9

13.5

18.6

13.3

18.9

86MH

SP

0.0

0.0

0.1

4.6

3.4

0.5

0.4

50/10"

50/1"

50/5"

50/5"

50/5"

-

-

-

97

94

116

95

59

50/5"

ELASTIC SILT - hard, moist, gray

POORLY GRADED SAND - very dense, moist, gray, fine tomedium-grained


With gravel

Trace fine gravel, trace organic odor

Fine to coarse-grained, trace gravel (up to 1/2 inch in size)

END OF BORING AT 150½ FEETNOTES:Hand augered upper 8 feet to avoid damage to utilities.Montoring well was installed on 4/22/2011. See wellconstruction diagram for G-165.




Downhole Test: NV = Noise/Vibration

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

3/5/2011 and 3/19/2011


BOREHOLE LOCATION


281 feet

G-165(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

125

130

135

140

145

150

155

160

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.




EL

EV

AT

ION

(ft

)

285

280

275

270

265

260

255

9.3

8.7

7.4

20.9

6.8

12.8

11.0

10.9

10.4

22.6

20

75

CL

SM

SW

SM

CL

SM

CL

CL

CL

6.6

4.0

3.2

3.2

4.5

4.3

2.9

5.1

4.7

3.4

49

32

65/11"

70

82

118

-

114

-

112

-

84

-

118

-

32

54

33

49

29

FILL [Af]LEAN CLAY - moist, light brown and gray, trace gravel, tracebrick fragments

SILTY SAND - moist, brown and gray, fine to coarse-grained,with slate gravel


WELL GRADED SAND with GRAVEL - dense, moist,brown, fine to coarse-grained, trace silt, gravel (up to 1/4 inchin size)

SILTY SAND - dense, moist, brown, fine to medium-grained,some gravel (up to 3/4 inch in size)

Becomes medium dense, some gravel (up to 1 inch in size)

LEAN CLAY - hard, moist, light brown, trace gravel (up to1/4 inch in size)

SILTY SAND - very dense, moist, reddish brown, fine tomedium-grained, trace gravel (up to 1/8 inch in size)

LEAN CLAY with SAND - hard, moist, brown, fine to coarsesand, trace gravel (up to 3/8 inch in size)

Becomes dark reddish brown

SANDY LEAN CLAY - hard, moist, brown, fine to mediumsand

Trace gravel (up to 1/4 inch in size), thin layer of Sandy Silt

Thin layer of Silty Sand, olive brown

LEAN CLAY - very stiff, moist, olive brown

SA

MP

LE

LO

C.

Sta 700+30, Rt 25 and 60 feet

HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED3/5/2011, 3/19/2011,4/18/2011 - 4/20/2011


BOREHOLE LOCATION


290 feet

G-166A/B

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.

Field Tech: ARPrepared/Date: JF 5/11/2011Checked/Date: LT/RM 9/20/2011

Project No.: 4953-10-1561


Figure: A-2.55a


EL

EV

AT

ION

(ft

)

245

240

235

230

225

220

215

22.2

29.9

20.5

19.9

19.8

25.0

22.0

56.7

31.9

18.2

16.0

87

77

99

CH

MH

SP

2.5

4.5

4.7

4.7

6.3

21

20

46

34

12

60

98

-

108

-

107

-

101

66

-

97

-

18

37

30

30

95

Trace sand, trace iron oxide stains

Becomes olive gray, trace iron oxide stains

Becomes hard

Becomes dark olive brown

Becomes very stiff, olive brown

FAT CLAY with SAND - very stiff, moist, light gray andbrown, very fine sand, calcium carbonate nodules

ELASTIC SILT - stiff, moist, light gray, calcium carbonatenodules

Becomes very stiff, light olive gray

Thin layer of Lean to Fat Clay, gray


POORLY GRADED SAND - dense, wet, light brown, fine tomedium-grained, trace gravel (up to 3/4 inch in size)

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED3/5/2011, 3/19/2011,4/18/2011 - 4/20/2011


BOREHOLE LOCATION


290 feet

G-166A/B(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.55b


NV

NV

PM

TN

V

Tu

nn

el

EL

EV

AT

ION

(ft

)

205

200

195

190

185

180

175

23.0

21.7

13.3

20.6

20.8

17.8

12.8

16

49

49

45

SM

SP-SM

ML

SP

SM

SP

SC

SP

5.4

4.9

9.5

6.7

4.5

4.5

75/6"

75/6"

80/10"

47

89

-

92

-

103

-

123

50/6"

99/10"

50/6"

Becomes very dense, some coarse sand, trace silt,trace gravel


SILTY SAND - very dense, moist, gray, very fine-grained

POORLY GRADED SAND with SILT - very dense, moist,light gray, fine-grained

SANDY SILT - hard, moist, light greenish gray

POORLY GRADED SAND - very dense, moist, light gray,fine to medium-grained

SILTY SAND - very dense, moist, greenish gray, fine tomedium-grained

Becomes fine-grained

Becomes light brown

POORLY GRADED SAND - very dense, moist, gray, fine tomedium-grained

CLAYEY SAND - dense, moist, dark grayish green, fine tomedium-grained

POORLY GRADED SAND - very dense, moist, greenish gray,fine to coarse-grained, with gravel

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED3/5/2011, 3/19/2011,4/18/2011 - 4/20/2011


BOREHOLE LOCATION


290 feet

G-166A/B(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.55c


Tu

nn

el

EL

EV

AT

ION

(ft

)

165

160

155

150

145

140

135

12.2

-

18.9

15.7

20.9

20.5

17.9

34

SW

SP

SM

SP

4.7

4.1

1.9

3.9

3.6

3.0

4.1

100/3"

75/6"

75/6"

-

-

-

96

-

88

-

50/5"

50/4"

50/5"

50/4"

Becomes blueish gray, fine-grained

WELL GRADED SAND - very dense, wet, gray, fine tocoarse-grained, with gravel6-inch to 8-inch thick cobble layer


POORLY GRADED SAND - very dense, wet, light gray,fine-grained

Becomes gray, moist

Trace gravel

SILTY SAND - very dense, moist, gray, fine-grained, tracegravel (up to 3/8 inch in size)

POORLY GRADED SAND - very dense, moist, gray,fine-grained

END OF BORING AT 151 FEETNOTES:Hand augered upper 5 feet to avoid damage to utilities. BoringG-166A was terminated at 74 feet and backfilled. BoringG-166B was sampled between 74 feet and 151 feet. Montoringwell was installed on 4/20/2011. See well constructiondiagram for G-166.

"N" Value Standard Penetration Test: Number of blowsrequired to drive the SPT sampler 18 inches using a140 pound automatic hammer falling 30 inches*Number of blows required to drive the Crandall Sampler12 inches using a 300 pound hammer falling 18 inches

**Photo Ionization Detector used for OVA readingsDownhole Tests: PMT = Pressuremeter, NV = Noise/Vibration

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED3/5/2011, 3/19/2011,4/18/2011 - 4/20/2011


BOREHOLE LOCATION


290 feet

G-166A/B(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

125

130

135

140

145

150

155

160

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.




EL

EV

AT

ION

(ft

)

280

275

270

265

260

255

250

245

15.3

13.7

12.2

22.1

26.7

31.5

23.7

26.6

17.3

29.7

18.7

17.2 87

CL-ML

SC

SM

CL

1.3

0.7

1.2

0.8

0.9

0.7

1.3

0.6

1.5

0.6

1.2

0.8

30

13

19

34

37

36

118

-

113

-

95

-

-

-

107

-

113

-

26

15

16

30

28

24

8-inch thick Asphalt Concrete over 10-inch thick Base Course

FILL [Af]

SILTY CLAY - moist, light brown, trace fine sand

Becomes more sandy, trace gravel

Becomes clayey, trace slate gravel (up to 1/4 inchin size)

CLAYEY SAND - moist, brown, trace gravel


SILTY SAND - medium dense, moist, brown and gray, fine tomedium-grained, some coarse sand, some gravel

Becomes brown, trace clay and slate gravel

LEAN CLAY with SAND - stiff, moist, olive brown, fine sand,trace gravel

Becomes stiff to very stiff, trace sand, trace iron oxidestains

Becomes olive gray to gray

Becomes olive brown to gray, trace fine sand, trace iron oxidestains

Becomes with sand, olive brown, fine sand

Trace sand

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/12/2011 - 1/14/2011


Ground-water level not measured.

BOREHOLE LOCATION


284 feet

G-168

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.56a


Cen

tury

Cit

y /

Co

nst

ella

tio

n S

tati

on

EL

EV

AT

ION

(ft

)

240

235

230

225

220

215

210

205

32.1

25.8

18.4

17.9

12.7

10.2

22.0

18.0

14.4

15

21

CL

SM

ML

SM

SP

SM

SP

SM

SP

1.4

0.5

1.1

0.4

1.4

0.5

1.3

1.0

1.2

50

75/9"

100/5"

50/5"

50/3"

87

-

105

-

112

-

100

-

100

68

97/9"

93/9"

50/5"

LEAN CLAY - hard, moist, olive gray to greenish gray,cemented silt pods and calcium carbonate nodules


SILTY SAND - very dense, moist, blueish gray to light gray,fine to medium-grained

SILT - hard, moist, bluish gray, some clay

SILTY SAND - very dense, moist, blueish gray to greenishgray, fine-grained

POORLY GRADED SAND - very dense, moist, light gray,fine to medium-grained6-inch thick cobble at 50½ feet

Becomes greenish gray

SILTY SAND - very dense, moist, blueish gray, fine tomedium-grained, some coarse sand6 to 8-inch thick cobble at 55½ feet

Some gravel (up to 1/2 inch in size)


POORLY GRADED SAND - very dense, moist, blueish grayto greenish gray, fine to medium-grained


SILTY SAND - very dense, moist, greenish to blueish gray,fine to medium-grained

POORLY GRADED SAND - very dense, moist, dark gray,fine to medium-grained

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/12/2011 - 1/14/2011



BOREHOLE LOCATION


284 feet

G-168(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.56b


Cen

tury

Cit

y /

Co

nst

ella

tio

n S

tati

on

EL

EV

AT

ION

(ft

)

200

195

190

185

180

175

170

165

13.1

-

27.2

10.3

9.9

13.8

22

81

19

SM

SP

CH

SP

SM

1.0

1.2

1.0

1.2

1.2

100/4½"

70/5"

75/5"

-

-

92

-

119

-

50/3"

43

50/4"

SILTY SAND - very dense, moist, dark gray, fine tomedium-grained


POORLY GRADED SAND - very dense, moist, dark gray,fine to medium-grained

FAT CLAY with SAND - hard, moist, dark gray, fine tomedium sand

POORLY GRADED SAND - moist, gray, fine tomedium-grained, some coarse sand, trace gravel

SILTY SAND with GRAVEL - very dense, slightly moist tomoist, dark gray, fine to coarse-grained

Gravel (up to 3/4 inch in size)

END OF BORING AT 112 FEETNOTES:Hand augered upper 5 feet to avoid damage to utilities.Borehole grouted with cement-bentonite slurry and patchedwith asphalt concrete.

"N" Value Standard Penetration Test: Number of blowsrequired to drive the SPT sampler 18 inches using a140 pound automatic hammer falling 30 inches*Number of blows required to drive the Crandall Sampler12 inches using a 300 pound hammer falling 18 inches


SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/12/2011 - 1/14/2011



BOREHOLE LOCATION


284 feet

G-168(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561 Figure: A-2.56c


Cen

tury

Cit

y /

Co

nst

ella

tio

n S

tati

on

EL

EV

AT

ION

(ft

)

290

285

280

275

270

265

260

255

25.7

14.2

17.5

21.1

25.9

21.2

27.3

27.2

13.0

15.7

14.7

14.9

43

12

CL-ML

CL

SM

CL

CL

SC

SM

SP-SM

0.2

0.2

0.7

0.3

0.4

0.5

0.1

0.1

0.6

0.4

0.3

0.4

15

10

11

17

41

72/11"

93

-

109

-

101

-

97

-

120

-

109

-

14

4/6"

15

25

43

90

8-inch thick Asphalt Concrete over 6-inch thick Base CourseFILL [Af]

SILTY CLAY - moist, brown with some gray, trace slategravel

LEAN CLAY with SAND - moist, olive brown, fine sand,trace gravel

SILTY SAND - moist, light brown, fine to medium-grained

SANDY LEAN CLAY - moist, brown to dark gray, fine sand

LEAN CLAY with SAND - soft, moist, light brown, fine tocoarse sand

Becomes stiff, thin layer of Silt, trace clay and sand

Becomes olive brown, trace very fine sand

Becomes very stiff, trace organics


CLAYEY SAND - dense, moist, olive brown, fine tomedium-grained, trace gravel

SILTY SAND - dense, moist, light brown, fine-grained, withsome clay

Alternating with layers of Poorly Graded Sand, light gray

POORLY GRADED SAND with SILT - very dense, moist,brown, fine to medium-grained

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/10/2011 - 1/12/2011


BOREHOLE LOCATION


292 feet

G-169

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.57a


Cen

tury

Cit

y /

Co

nst

ella

tio

n S

tati

on

EL

EV

AT

ION

(ft

)

250

245

240

235

230

225

220

215

19.0

18.4

12.8

24.2

17.7

21.8

18.3

22.9

30.5

26

33

15

SM

SP-SM

SM

SM

SP-SM

SM

0.1

0.6

0

0.2

0.3

0.1

0

0.1

0.1

94/8"

50/5"

93/10"

93/10"

66

101

-

106

-

107

-

94

-

86

96/11"

84

63

50/6"

Becomes light brown, trace iron oxide stains

Gray to olive brown

Becomes brown

Some gravel

SILTY SAND - very dense, moist, brown, fine-grained

POORLY GRADED SAND with SILT - very dense, moist,light brown to yellowish brown, fine to medium-grained, ironoxide stains

SILTY SAND - very dense, moist, olive brown, fine tomedium-grained, iron oxide stains


SILTY SAND - very dense, moist, light bluish gray, fine tomedium-grained

POORLY GRADED SAND with SILT - very dense, moist,bluish gray, fine to medium-grained, shell fragments, someslate gravel

SILTY SAND - very dense, moist, bluish gray to gray, fine tomedium-grained

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/10/2011 - 1/12/2011


BOREHOLE LOCATION


292 feet

G-169(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.57b


PM

T

Cen

tury

Cit

y /

Co

nst

ella

tio

n S

tati

on

EL

EV

AT

ION

(ft

)

210

205

200

195

190

185

180

175

14.6

19.0

29.4

17.3

13.4

14.6

23.8

-

11

55

SW-SM

SP

CL

ML

SP

SM

0.1

1.5

0

0

90/11"

51

87/8"

91/9"

-

103

-

112

-

116

-

-

93

50/4"

44

50/4"

Some coarse sand, trace gravel

WELL GRADED SAND with SILT and GRAVEL - verydense, wet, bluish gray to gray, fine to medium-grained, gravel(up to 1 inch in size)

POORLY GRADED SAND - very dense, wet, dark gray,fine-grained

SANDY LEAN CLAY - hard, moist, dark gray, fine sand,trace gravel (up to 3/8 inch in size), some shell fragments

SILT - hard, moist, dark bluish gray, trace sand

Becomes gray

Trace gravel

POORLY GRADED SAND - very dense, wet, dark gray, fineto medium-grained


SILTY SAND - very dense, wet, dark gray, fine tomedium-grained

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/10/2011 - 1/12/2011


BOREHOLE LOCATION


292 feet

G-169(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.57c


Cen

tury

Cit

y /

Co

nst

ella

tio

n S

tati

on

EL

EV

AT

ION

(ft

)

170

165

160

155

150

145

140

135

27.1 -50/6"END OF BORING AT 121 FEET

NOTES:

Hand augered upper 5 feet to avoid damage to utilities.Borehole grouted with cement-bentonite slurry and patchedwith asphalt concrete.




Downhole Test: PMT = Pressuremeter

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

1/10/2011 - 1/12/2011


BOREHOLE LOCATION


292 feet

G-169(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

125

130

135

140

145

150

155

160

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.




7-inch thick Asphalt Concrete over 4-inch thick Base CourseLAKEWOOD FORMATION [Qlw]

CLAYEY SILT - moist, olive, some fine sand

Becomes light brown

SILTY SAND - medium dense, moist, olive yellow, fine tovery fine-grained

Becomes dense, light olive to light olive yellow, thin layerof Poorly Graded Sand with Silt

POORLY GRADED SAND with Silt - very dense, moist,brown, fine to medium-grained, some shell fragments

(Sample not recovered)Becomes dense, olive yellow

Becomes olive, some oxidized seems, trace finesubrounded gravel (up to 1/4" in size)

POORLY GRADED SAND with Gravel - very dense, moist,light brown, fine to medium grained, some coarse, gravel (upto 1/2" in size)

17

39

52

69

-

-

106

25

64

71

-

-

-

24.5

16.4

21.9

5.9

ML

SM

SP-SM

SP

ML

3.3

10.2

1.6

8.6

4.1

8.5

2.3

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

Bailed drilling mud to 72 feet on 3/1/2011. Ground-water level measured at 68feet below ground surface on 3/2/2011.

BOREHOLE LOCATION


271 feet


DRILLING METHOD

Rotary Wash

DATES DRILLED2/28/2011, 3/1/2011 -3/2/2011



Figure: A-1.58a


EL

EV

AT

ION

(ft

)

270

265

260

255

250

245

240

235

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.

Field Tech: ARPrepared/Date: DR/JF 5/31/2011Checked/Date: JAG/PE 6/30/2011

LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

SANDY SILT - hard, moist, light brown, fine sand, tracegravel(Sample not recovered)

Becomes olive to light olive brown, trace iron oxide stains

SILTY SAND - very dense, moist to wet, light olive to olive,very fine to fine-grained, trace medium

Becomes light olive brown, trace iron oxide stains

Thin layer of Clayey Silt

Becomes light brown to olive yellow, with light gray ironoxide stains, scattered with small grayish clay pockets

Increase in silt content

Trace medium sand, with iron oxide stains

SANDY SILT - hard, moist, olive, very fine to fine sand, traceshell fragments

SILT with Sand - hard, moist, bluish gray, fine sand, with ironoxide stains


SILTY SAND with Gravel - very dense, moist, light gray,fine-grained, some medium

Some gravel (up to 3/4" in size)

Becomes wet, olive to light olive gray, increase in silt content

Some gravel (up to 1/2" in size)

POORLY GRADED SAND with Silt - very dense, wet, olive,fine to medium-grained, trace gravel

Trace fine subrounded gravel (up to 1/4" in size)

Becomes olive to light olive gray

80/10"

81

84/10"

75/7"

66

86/6"

75/7"

50/6"

91

101

101

103

97

90

106

100

79

98

63

54

70

50/5"

53/6"

50/5"

-

22.3

21.3

14.5

12.0

13.2

22.5

17.9

23.5

23.5

18.7

25.6

14.4

15.8

19.0

21.8

47

55

84

13

12

SM

ML

ML

SM

SP-SM

6.2

7.2

6.2

2.9

5.3

4.1

7.6

2.9

6.7

2.3

6.1

3.2

4.3

9.2

3.1

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


271 feet

G-171(Continued)


DRILLING METHOD

Rotary Wash

DATES DRILLED2/28/2011, 3/1/2011 -3/2/2011



Figure: A-1.58b


EL

EV

AT

ION

(ft

)

230

225

220

215

210

205

200

195

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

SILT with Sand - hard, wet, dark gray, very fine sand, traceshell fragments

POORLY GRADED SAND with Silt - very dense, wet, darkgray, fine to medium-grained, trace gravel

Some coarse, trace fine rounded gravel (up to 1/2" in size)

Increase in silt content

Cobble (up to 8" in size)

SILTY CLAY - hard, wet, dark gray, trace fine sand

SILTY SAND - very dense, dark gray, fine to medium-grained,some clay

Trace gravel (up to 1/2" in size)

SILTY CLAY - hard, wet, dark gray, trace fine sand, traceshell fragments, trace iron oxide stains

SILTY SAND - very dense, wet, olive gray, fine tomedium-grained, with clayey silt interbeds

Trace gravel

Becomes fine-grained, some medium to coarse

More gravel

POORLY GRADED SAND with SILT - very dense, wet, darkgray, fine-grained, some medium to coarse, trace fine gravel(up to 1/4" in size), thin layer of Silty Sand

Gravel layer with shell fragments

110/3"

100/4"

75/6"

66/10"

75

75/6"

106

-

107

107

109

121

72/9"

90/6"

50/5"

50/6"

50/6"

90/11"

50/3"

25.2

12.8

11.5

-

17.5

12.4

15.5

16.2

17.3

17.9

21.9

11.8

6.2

81

6

ML

SP-SM

CL-ML

SM

CL-ML

SM

SP-SM

2.8

8.4

4.8

5.2

2.6

2.3

2.9

4.1

2.6

4.4

3.2

2.0

3.7

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


271 feet

G-171(Continued)


DRILLING METHOD

Rotary Wash

DATES DRILLED2/28/2011, 3/1/2011 -3/2/2011



Figure: A-1.58c


EL

EV

AT

ION

(ft

)

190

185

180

175

170

165

160

155

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

Becomes olive gray, fine to medium-grained, trace coarse,some fine gravel (up to 1/2" in size)


NOTES:





100/5"-7.02.3

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


271 feet

G-171(Continued)


DRILLING METHOD

Rotary Wash

DATES DRILLED2/28/2011, 3/1/2011 -3/2/2011


Figure: A-1.58d


EL

EV

AT

ION

(ft

)

150

145

140

135

130

125

120

115

DE

PT

H (

ft)

125

130

135

140

145

150

155

160

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

4-inch thick Asphalt Concrete over 8-inch thick Base CourseFILL [Af] - SILTY SAND - moist, brown


SANDY LEAN CLAY - very soft, moist, brown, with slategravel fragments

Plant roots present

CLAYEY SAND - loose, moist, brown, fine-grained, tracegravel (up to 1/2" in size)

SANDY LEAN CLAY - very stiff, moist, brown, trace gravel

CLAYEY SAND - dense, moist, brown, fine-grained, tracegravel (up to 1/4" in size)

LEAN CLAY - very stiff, moist, brown


SILTY SAND - medium dense, moist, olive brown,fine-grained, trace clay

Trace iron oxide stains

LEAN CLAY - very stiff, moist, gray, with iron oxide stains

SILTY SAND - dense to very dense, moist, olive gray,fine-grained

Push

9

14

21

110

103

114

101

18

18

50

16.5

20.7

18.7

12.0

22.0

23.9

17.0

46

41

SM

CL

SC

CL

SC

CL

SM

CL

SM

0.1

0.0

0.0

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


280 feet


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/21/2011 - 2/23/2011



Figure: A-1.59a


EL

EV

AT

ION

(ft

)

275

270

265

260

255

250

245

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

(Sample not recovered)Becomes medium dense

POORLY GRADED SAND - dense to very dense, slightlymoist, brown, fine-grained

Becomes dark brown, trace iron oxide stains

SILTY SAND with Gravel - very dense, moist, yellowishbrown, fine to medium-grained, with slate gravel (up to 1/8" insize)

POORLY GRADED SAND - very dense, moist, olive brownand gray, fine-grained

SILTY SAND - very dense, wet, light olive gray, fine-grained,with iron oxide stains

Becomes brown


SANDY SILT - hard, wet, olive brown to olive gray, with shellfragments

26

53

81

83/11"

65

59

-

97

110

99

103

89/11"

73/10"

-

3.7

9.0

12.3

15.1

21.6

19.6

24.0

13

27

54

SP

SM

SP

SM

ML

0.0

0.0

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


280 feet

G-173(Continued)


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/21/2011 - 2/23/2011



Figure: A-1.59b


EL

EV

AT

ION

(ft

)

235

230

225

220

215

210

205

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

NV

NV

Pre

ssu

rem

eter

With iron oxide stains

SILTY SAND - very dense, wet, olive brown, fine-grained,with iron oxide stains

POORLY GRADED SAND with Silt - very dense, wet, brown,fine to medium-grained, with dark manganese nodules

Becomes fine-grained

ELASTIC SILT with Sand - hard, wet, dark gray to black,with shell fragments

POORLY GRADED SAND - very dense, wet, gray,fine-grained, trace slate gravel fragments

SANDY SILT - hard, wet, dark gray, some fossils,interbedded, trace sulfor odor, weak

Thin layer of Lean Clay, gray


NOTES:

Borehole grouted with cement-bentonite slurry and patchedwith asphalt concrete.

54

66

50/3"

37

101

90

105

84

66

42

21.9

22.6

20.0

29.3

19.8

19.5

29.6

85

9

78

SM

SP-SM

MH

SP

ML

0.0

0.0

0.1

0.0

LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


280 feet

G-173(Continued)


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/21/2011 - 2/23/2011



Figure: A-1.59c


EL

EV

AT

ION

(ft

)

195

190

185

180

175

170

165

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

NV

Pre

ssu

rem

eter




LOG OF BORING

BORING NO.

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*


BOREHOLE LOCATION


280 feet

G-173(Continued)


DRILLING METHOD

Rotary Wash

DATES DRILLED

2/21/2011 - 2/23/2011


Figure: A-1.59d


EL

EV

AT

ION

(ft

)

155

150

145

140

135

130

125

DE

PT

H (

ft)

125

130

135

140

145

150

155

160

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


LA

ME

TR

O P

B S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 8

/9/1

1

EL

EV

AT

ION

(ft

)

265

260

255

250

245

240

235

15.5

30.4

14.5

14.4

23.1

22.7

13.7

90

41

SP-SMML

CL

SM

SP-SM

CL

SC

0.2

0.1

0.1

0.2

0.0

0.0

0.0

Push

30

15

26

114

-

101

-

93

-

119

18

28

23

36-inch thick Asphalt Concrete

FILL [Af]

POORLY GRADED SAND with SILT - moist, brown, fine tocoarse-grained

SANDY SILT with GRAVEL - moist, dark brown, slate gravel

QUATERNARY OLDER ALLUVIUM [Qalo]SANDY LEAN CLAY with GRAVEL - very soft, moist, darkbrown, some iron oxide stains, subangular to subrounded finegravel

Alternating with layers of Lean Clay, very stiff, brown, tracefine sand

SILTY SAND - medium dense, moist, brown, fine-grained

Becomes orangish brown

POORLY GRADED SAND with SILT - dense, moist, brown,fine-grained

Fine to medium-grained, trace coarse, fine gravel, alternatingwith layers of Sandy Silt and Silty Sand

SANDY LEAN CLAY - stiff, moist, dark brown, trace finegravel

CLAYEY SAND - medium dense, moist, brown, fine-grained,some silt

Thin layer of Lean Clay, brown to gray

Some slate fine gravel

SA

MP

LE

LO

C.

Sta 735+85, Rt 180 feet

HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

3/8/2011 - 3/10/2011



BOREHOLE LOCATION


270 feet

G-174A

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.

Field Tech: DWPrepared/Date: JF 5/18/2011Checked/Date: LT/PE 9/22/2011

Project No.: 4953-10-1561


Figure: A-2.60a


EL

EV

AT

ION

(ft

)

225

220

215

210

205

200

195

14.5

19.6

19.6

20.0

20.3

15.5

24.7

22.8

SP

SC

CL

0.2

0.1

0.1

0.0

0.0

0.1

0.0

0.0

27

27

39

19

-

106

-

101

-

114

-

107

32

16

29

33

POORLY GRADED SAND - dense, moist, brown, fine tomedium-grained, trace coarse, trace fine gravel

CLAYEY SAND - dense, moist, brown, fine tomedium-grained, trace gravel

Becomes gray, fine-grained, trace fine gravel

LEAN CLAY - very stiff, moist, brown

Alternating with layers of Lean Clay with Sand, hard, reddishbrown with gray mottling, trace fine slate gravel

Becomes stiff, brown, trace fine sand, some calciumcarbonate nodules

SA

MP

LE

LO

C.

Sta 735+85, Rt 180 feet

HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

3/8/2011 - 3/10/2011



BOREHOLE LOCATION


270 feet

G-174A(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.60b


Tu

nn

el

EL

EV

AT

ION

(ft

)

185

180

175

170

165

160

155

26.9

25.8

20.7

15.3

22.0

13.6

16.6

23.3

71

65

37SC

CL

SM

0.0

0.0

0.0

0.0

0.0

0.1

0.0

0.0

18

85/8"

48

27

-

98

-

114

-

112

-

-

75/11"

45

36

51

Becomes hard, grayish brown, with thin layers of PoorlyGraded Sand, trace gravel (up to 3/8 inch in size)

Becomes stiff, gray, some calcium carbonate nodules

Alternating with layers of Sandy Lean Clay, hard, brownwithgray mottling, fine sand

Becomes grayish brown, trace fine sand, trace gravel

Becomes light brown to gray, fine sand

CLAYEY SAND - dense, moist, gray, fine to medium-grained,trace gravel (up to 3/4 inch in size)

LEAN CLAY - hard, moist, gray, some iron oxide stains

Becomes brown to gary, fine to medium sand

SILTY SAND - medium dense, moist, dark brown,fine-grained

SA

MP

LE

LO

C.

Sta 735+85, Rt 180 feet

HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

3/8/2011 - 3/10/2011



BOREHOLE LOCATION


270 feet

G-174A(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.60c


Tu

nn

el

EL

EV

AT

ION

(ft

)

145

140

135

130

125

120

115

16.20.0 29113Thin layer of Lean Clay, very stiff, light brown to gray,with iron oxide stains


NOTES:

Hand augered upper 4 feet to avoid damage to utilities. BoringG-174 was terminated due to loss of SPT sampler in the hole.Boring G-174A was started in close proximity to G-174 andsampled from 74 feet to 121 feet. Boring was converted into amonitoring well with 2 piezometers per attached well detail.




SA

MP

LE

LO

C.

Sta 735+85, Rt 180 feet

HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

3/8/2011 - 3/10/2011



BOREHOLE LOCATION


270 feet

G-174A(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

61-1

81).

GP

J 1

0/3

/11

DE

PT

H (

ft)

125

130

135

140

145

150

155

160

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.




EL

EV

AT

ION

(ft

)

290

285

280

275

270

265

260

255

19.5

19.0

21.5

20.3

22.2

26.7

22.0

69

49

CL

SM

CL

SM

CL

0

0.1

0.3

0

0.1

0.1

0

7

8

24

16

105

-

105

-

104

-

103

15

19

26

3-inch thick Asphalt Concrete over 3-inch thick Base CourseQUATERNARY OLDER ALLUVIUM [Qalo]

SANDY LEAN CLAY - very stiff, moist, dark gray, fine sand

Becomes stiff, greenish gray to dark olive, more sand, tracegravel

Becomes very stiff, olive

Becomes wet, light brown, very fine sand

Some gravel

SILTY SAND - medium dense, moist, olive, fine tomedium-grained

SANDY LEAN CLAY - wet, olive, very fine sand, layers ofClayey Sand

SILTY SAND - medium dense, wet, light brown, fine-grained

SANDY LEAN CLAY - stiff, wet, light olive, very fine sand,trace fine sand seems

SA

MP

LE

LO

C.

Sta723+77, Lt 13½ feet

HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

6/13/2011 and 6/14/2011

GROUND-WATER READINGSDrilling mud bailed on 6/13/2011; ground-water level measured at 17 feet belowground surface on 6/14/2011.

BOREHOLE LOCATION


294 feet

G-200Alt

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

82-2

07).

GP

J 1

0/3

/11

DE

PT

H (

ft)

5

10

15

20

25

30

35

40

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.

Field Tech: ARPrepared/Date: YN 8/23/2011Checked/Date: LT/Jag/PE 9/28/11

Project No.: 4953-10-1561


Figure: A-2.75a


EL

EV

AT

ION

(ft

)

250

245

240

235

230

225

220

215

23.2

16.0

35.3

36.3

13.9

16.8

23.7

19.4

20

95

21

47

75

SM

CH

SM

CL

SC

ML

SC

0.3

0.5

0.7

0.5

0.1

0.3

0.2

0.4

35

14

30

36

-

112

-

88

-

106

-

103

18

14

50/6"

23

Becomes very stiff

SILTY SAND - medium dense, moist, light olive brown, fineto coarse-grained, trace gravel

FAT CLAY - stiff, moist, olive brown, trace very fine sand

SILTY SAND with GRAVEL - very dense, wet, brown andgray, fine to coarse-grained, gravel (up to ½-inch in size), traceclay

LEAN CLAY with SAND - very stiff, wet, brown to light grayand olive, very fine sand, trace calcium carbonate nodules

CLAYEY SAND - very stiff

Trace silt


SILT with SAND - very stiff, moist, brown, fine to mediumsand, trace gravel, some clay, iron oxide stains

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

6/13/2011 and 6/14/2011


BOREHOLE LOCATION


294 feet

G-200Alt(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

82-2

07).

GP

J 1

0/3

/11

DE

PT

H (

ft)

45

50

55

60

65

70

75

80

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.75b


Tu

nn

el

EL

EV

AT

ION

(ft

)

210

205

200

195

190

185

180

175

18.0

20.7

32.4

14.6

34.9

27.5

18.3

17.9

68

66

93

CL

SM

CL

CH

SP

0.2

0.1

0.0

0.0

0.1

0.2

0.0

0.0

30

37

31

87/10"

-

106

-

108

-

95

-

112

39

26

27

50/6"

CLAYEY SAND - dense, wet, olive, fine to medium-grained,trace gravel

Increase in gravel content

SANDY LEAN CLAY - very stiff, wet, light olive, fine tocoarse sand

SILTY SAND - wet, light olive, fine to medium-grained, somecoarse


SANDY LEAN CLAY - very stiff, wet, light olive, fine sand

Becomes hard, gray, thin layers of Clayey Silt

Becomes very stiff, fine to medium sand

FAT CLAY - very stiff, moist, gray, some fine to coarse sand,trace fine gravel

POORLY GRADED SAND - very dense, wet, bluish gray, fineto medium-grained

Layers of Silty Clay, very fine sand


NOTES:Hand augered upper 5 feet due to utilities. Borehole groutedwith cement-bentonite slurry and patched with asphaltconcrete.

SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

6/13/2011 and 6/14/2011


BOREHOLE LOCATION


294 feet

G-200Alt(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

82-2

07).

GP

J 1

0/3

/11

DE

PT

H (

ft)

85

90

95

100

105

110

115

120

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


Project No.: 4953-10-1561


Figure: A-2.75c


Tu

nn

el

EL

EV

AT

ION

(ft

)

170

165

160

155

150

145

140

135




SA

MP

LE

LO

C.


HOLE DIAMETER

4-7/8 inches

GROUND EL.

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE

DO

WN

HO

LE

TE

ST

S

OV

A (

pp

m)*

*

BL

OW

CO

UN

T*

(blo

ws/

ft)

DR

Y D

EN

SIT

Y(p

cf)

"N"

VA

LU

ES

TD

.PE

N.T

ES

T


DRILLING METHOD

Rotary Wash

DATES DRILLED

6/13/2011 and 6/14/2011


BOREHOLE LOCATION


294 feet

G-200Alt(Continued)

LOG OF BORING

BORING NO.L

A M

ET

RO

PB

-TU

NN

EL

ZO

NE

S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

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.2.3

.1 G

EO

TE

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AL

DE

SIG

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.2 A

LL

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LD

NO

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S\G

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LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\4

953-1

0-1

561_(1

82-2

07).

GP

J 1

0/3

/11

DE

PT

H (

ft)

125

130

135

140

145

150

155

160

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

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ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

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AT

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ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.




1

2

FILL [Af]SILTY SAND - moist to wet, brown, fine grained, some gravel and cobble (upto 3 inches in size), layers of Poorly Graded Sand with Silt, some glass debris


SANDY SILT - wet, very dark brown (10YR 2/2), trace to some subangulargravel, (up to ¾- inch in size), mainly slate shale and siltstone, some dispersedorganics, trace clay

At 6 to 8.5': No core recovery

Becomes dark yellowish brown (10YR 3/4), more gravel, fewer organics

Becomes very dark brown (10YR 2/2), trace fine gravel

Becomes dark yellowish brown (10YR 4/6)

SILTY CLAY - soft to medium stiff, wet, dark yellowish brown (10YR 4/6),trace fine gravel

At 17.0 - 27.0': Samples recovered in bags

SANDY SILT with GRAVEL - medium stiff, wet, very dark brown (10YR 2/2)to dark yellowish brown (10YR 4/3), subangular shale, slate and sandstone (upto ¾- inch in size), occasional sand lenses

SILTY CLAY - medium stiff, moist, very dark brown, varying fine sand,

62

50

SM

ML

CL-ML

ML

CL-

LOG OF BORING

BORING NO.

RU

N #

S-110

HOLE DIAMETER

6 inches

GROUND EL.

BO

X #

% R

EC

OV

ER

Y

SA

MP

LE

LO

C.

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE


Boart Longyear / 600T Trusonic Drilling Rig

DRILLING METHOD

Sonic Coring

DATES DRILLED

2/22/2011 - 2/24/2011



BOREHOLE LOCATION

710+7, Lt 78 feet

282 feet

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

Project No.: 4953-10-1561


Figure: A-3.10a


DE

PT

H (

ft)

5

10

15

20

EL

EV

AT

ION

(ft

)

280

275

270

265

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.

Field Tech: PR/MFPrepared/Date: YN/WL 10/1/2011Checked/Date: LT/PE 9/30/2011

ME

TR

O S

OIL

CO

RE

MC

200 T

UN

NE

L Z

ON

E S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\S

ON

IC G

INT

LO

GS

\101561 S

ON

IC (

101-1

10).

GP

J 1

0/3

/11

3

4

5

6

trace coarse sand and fine gravel, layers of Silt with Clay

SANDY SILT with GRAVEL - stiff, wet, very dark brown, some clay

SILTY SAND with GRAVEL - moist, brown to dark grayish brown, fine tocoarse grained, mainly subrounded to subangular slate and sandstone gravel(up to 1 inch in size)

SILT - very soft, wet, brown (7.5YR 4/3) to very dark grayish brown (10YR2/2), fine to coarse sand, trace fine gravel, slate and sandstone, poorlyconsolidated, trace clay

SANDY SILT - soft to medium stiff, wet, mottled grayish brown (10YR 5/2) tobrown (7.5YR 4/4), fine sand, trace medium to coarse, texture defined byvariable oxidation (alternating oxidized and unoxidized)

Lenticular sand lense (2-inch thick)

Zone of sand and gravel

90

100

100

100

59

ML

ML

SM

ML

ML

22.2

21.3

LOG OF BORING

BORING NO.

(Continued)

RU

N #

S-110

HOLE DIAMETER

6 inches

GROUND EL.

BO

X #

% R

EC

OV

ER

Y

SA

MP

LE

LO

C.

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE



DRILLING METHOD

Sonic Coring

DATES DRILLED

2/22/2011 - 2/24/2011



BOREHOLE LOCATION

710+7, Lt 78 feet

282 feet

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

Project No.: 4953-10-1561


Figure: A-3.10b


DE

PT

H (

ft)

25

30

35

40

EL

EV

AT

ION

(ft

)

260

255

250

245

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


ME

TR

O S

OIL

CO

RE

MC

200 T

UN

NE

L Z

ON

E S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\S

ON

IC G

INT

LO

GS

\101561 S

ON

IC (

101-1

10).

GP

J 1

0/3

/11

7

8

9

10

SILTY, CLAYEY GRAVEL with SAND - medium dense, wet, dark brown(10YR 3/3), mainly subangular slate, some metabasalt and quartzite, fine tocoarse sand, grades to fine to coarse gravels (up to 1 inch in size), lower contactis gradational

LEAN CLAY - stiff, wet, strongly mottled, dark grayish brown (2.5YR 3/4) tobrown (7.5YR 4/4), occasional dark reddish brown (5YR 3/4) mottling,subhorizontal, dark brownBecomes dark brown, (¼ inch thick), bedding appears subhorizontal

Prominent wavy, subhorizontal laminations, very dark grayish brown (10YR4/2) to dark reddish brown (5YR 3/2)

Subrounded sandstone clast (1 inch in size)

Occasional fine to medium sand

Mottling becomes less prominent, brown (7.5YR 4/4) with some dark grayishbrown (10YR 4/2) mottling

Some wavy, subhorizontal laminations

CLAYEY GRAVEL - loose, wet, brown (7.5YR 4/2), clasts up to 3 inches insize, mainly subangular to subrounded slate

More sand

SANDY LEAN CLAY - very stiff, wet, brown (10YR 4/4), fine sand, tracemedium to coarse

100

100

100

100

13

99

GC-GM

CL

GC

CL

9.7

17.8

38.0

20.0

LOG OF BORING

BORING NO.

(Continued)

RU

N #

S-110

HOLE DIAMETER

6 inches

GROUND EL.

BO

X #

% R

EC

OV

ER

Y

SA

MP

LE

LO

C.

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE



DRILLING METHOD

Sonic Coring

DATES DRILLED

2/22/2011 - 2/24/2011



BOREHOLE LOCATION

710+7, Lt 78 feet

282 feet

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

Project No.: 4953-10-1561


Figure: A-3.10c


DE

PT

H (

ft)

45

50

55

60

EL

EV

AT

ION

(ft

)

240

235

230

225

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


ME

TR

O S

OIL

CO

RE

MC

200 T

UN

NE

L Z

ON

E S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\S

ON

IC G

INT

LO

GS

\101561 S

ON

IC (

101-1

10).

GP

J 1

0/3

/11

11

12

13

14

At 61.4': Some gravel (up to ¾ inch in size)

Becomes yellowish brown (10YR 5/4)

Layer of Silty Sand, fine to coarse grained, some fine gravel (up to ¾ inch insize), clasts (up to 1 inch in size), mainly subangular slate and subroundedshale and sandstone, Clayey Sand lenses

SILTY SAND with GRAVEL - wet, yellowish brown (6YR 5/4), fine to coarsegrained, fine gravel (up to 3/4 inch in size), mainly subangular to subroundedslate, some subrounded shale

More sandClasts (up to 3 inches in size), mainly angular to subangular slate, somesubangular sandstone, varying colors

Granitic clast, unweathered, subrounded, (2 inches in size)Becomes very dark grayish brown (10YR 3/2), clasts (up to ¾-inch in size),mainly subangular slate and subangular to subrounded shale and sandstone,matrix is fine to coarse grained sand, some silt

SANDY SILT - stiff, wet, brown (10YR 4/4), trace fine gravel, layers of ClayeySand

WELL GRADED SAND with SILT and GRAVEL - dense, wet, brown (10YR4/4), fine to coarse grained, fine to coarse gravel (up to 1 inch in size), mainlysubrounded slate and shale

100

100

100

100

68

37

19

29

10

CL

SM

SM

ML

SW-SM

17.1

16.7

14.0

6.3

16.7

11.6

12.1

LOG OF BORING

BORING NO.

(Continued)

RU

N #

S-110

HOLE DIAMETER

6 inches

GROUND EL.

BO

X #

% R

EC

OV

ER

Y

SA

MP

LE

LO

C.

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE



DRILLING METHOD

Sonic Coring

DATES DRILLED

2/22/2011 - 2/24/2011



BOREHOLE LOCATION

710+7, Lt 78 feet

282 feet

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

Project No.: 4953-10-1561


Figure: A-3.10d


DE

PT

H (

ft)

65

70

75

80

EL

EV

AT

ION

(ft

)

220

215

210

205

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


ME

TR

O S

OIL

CO

RE

MC

200 T

UN

NE

L Z

ON

E S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\S

ON

IC G

INT

LO

GS

\101561 S

ON

IC (

101-1

10).

GP

J 1

0/3

/11

Tu

nn

el

15

16

17

18

SILTY SAND - dense, wet, fine to coarse grained, some fine gravel (up to ½inch in size)

Sharp contact, erosional, appears to dip 10-20 degrees

SILTY CLAY - very stiff, wet, brown (7.5YR 4/4), some fine sand, trace fine tocoarse gravel, alternating layers of Silty Sand and Sandy Silt

Becomes dark yellowish brown (10YR 4/4)

Becomes brown (7.5YR 4/3)

Becomes dark grayish brown (10YR 4/2) mottled with faint brown (7.5YR4/4), some wavy, subhorizontal laminations

Becomes strongly mottled, dark brown (7.5YR 3/3) to very dark gray (7.5YR3/3)

SANDY SILT with GRAVEL - very stiff, wet, brown (7.5YR 4/4), clasts (up to¾-inch in size), mainly angular to subangular slate, subangular shale andsandstone, some subrounded quartzite, some clay

SILTY GRAVEL - dense, wet, dark grayish brown (10YR 5/2), clasts (up to ¾-inch in size), mainly subangular slate, lesser subangular to subrounded shaleand sandstone, some subangular granite clasts, trace to some clay

More clay, gradational

100

100

100

100

38

SM

CL-ML

ML

GM

9.9

18.9

LOG OF BORING

BORING NO.

(Continued)

RU

N #

S-110

HOLE DIAMETER

6 inches

GROUND EL.

BO

X #

% R

EC

OV

ER

Y

SA

MP

LE

LO

C.

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE



DRILLING METHOD

Sonic Coring

DATES DRILLED

2/22/2011 - 2/24/2011



BOREHOLE LOCATION

710+7, Lt 78 feet

282 feet

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

Project No.: 4953-10-1561


Figure: A-3.10e


DE

PT

H (

ft)

85

90

95

100

EL

EV

AT

ION

(ft

)

200

195

190

185

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


ME

TR

O S

OIL

CO

RE

MC

200 T

UN

NE

L Z

ON

E S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

OJE

CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

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ES

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EN

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N\6

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TE

CH

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AL

DE

SIG

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.2 A

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LD

NO

TE

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INT

LO

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TE

MP

LA

TE

- M

AR

CH

14, 2011\S

ON

IC G

INT

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GS

\101561 S

ON

IC (

101-1

10).

GP

J 1

0/3

/11

Tu

nn

el

19

20

21

22

23

SILTY, CLAYEY GRAVEL - very stiff, wet, very dark gray (2.5YR 3/1), clasts(up to ¾- inch in size), mainly subangular to subrounded slate, shale andsandstone, fine to coarse sand, irregular sharp contact, oxidized beds

SANDY SILT with GRAVEL - stiff, wet, very dark grayish brown (10YR 3/2)to brown (10YR 4/4), clasts (up to ½- inch in size, some to 1 inch), mainlysubangular to subrounded slate, some subrounded to rounded shale andsandstone, trace gravel, some clay

SILTY CLAY - very stiff, wet, dark brown (7.5YR 3/3) to dark gray (2.5YR4/1), mottled, varying color, trace coarse sand, trace manganese oxide

Increasing sand, some fine gravel, some wavy subhorizontal laminations

SANDY SILT with GRAVEL - very stiff, moist, brown to dark gray, clasts (upto 1 inch in size), subangular to subrounded slate, subrounded shale andsandstoneLayers of Sandy Silty Clay, some brown (7.5YR 4/2) mottling, trace coarsesand, some wavy subhorizontal laminations

More gravel, subhorizontal laminations, fine to coarse

LEAN CLAY - very stiff, wet, olive brown (2.5Y 4/3) mottling with strongbrown (7.5YR 4/4), trace coarse sand, trace calcium carbonate nodules,occasional sand pockets

Calcium carbonate nodules (up to ¼ inch in size), some rounded fine gravel

SANDY SILT with GRAVEL - very stiff, wet, olive brown (2.5YR 4/3) andyellowish brown (10YR 5/4) mottling, some coarse sand, fine gravel (up to ¾inch in size), subangular slate and subrounded shale and sandstone, calciumcarbonate nodules (up to ¼ inch in size)

Becomes light yellowish brown (2.5Y 6/3), more fine gravel (up to ½- inch insize, some ¾- inch), subangular slate, fewer shale and sandstone

100

100

100

100

100

GM-GC

ML

CL-ML

ML

CL

ML

LOG OF BORING

BORING NO.

(Continued)

RU

N #

S-110

HOLE DIAMETER

6 inches

GROUND EL.

BO

X #

% R

EC

OV

ER

Y

SA

MP

LE

LO

C.

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE



DRILLING METHOD

Sonic Coring

DATES DRILLED

2/22/2011 - 2/24/2011



BOREHOLE LOCATION

710+7, Lt 78 feet

282 feet

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

Project No.: 4953-10-1561


Figure: A-3.10f


DE

PT

H (

ft)

105

110

115

120

EL

EV

AT

ION

(ft

)

180

175

170

165

TH

IS R

EC

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OF

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CO

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XP

LO

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. L

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ME

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O S

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CH

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NO

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14, 2011\S

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GP

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0/3

/11

Becomes light yellow brown (2.5YR 6/3)


NOTES:

Consistency description on this log is based on pocket penetrometer test resultsand/or visual observation of soil samples.

Hand augered upper 6 feet to avoid damage to utilities.

Borehole grouted with cement-bentonite slurry and patched with asphaltconcrete.

ML

LOG OF BORING

BORING NO.

(Continued)

RU

N #

S-110

HOLE DIAMETER

6 inches

GROUND EL.

BO

X #

% R

EC

OV

ER

Y

SA

MP

LE

LO

C.

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE



DRILLING METHOD

Sonic Coring

DATES DRILLED

2/22/2011 - 2/24/2011



BOREHOLE LOCATION

710+7, Lt 78 feet

282 feet

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

Project No.: 4953-10-1561 Figure: A-3.10g


DE

PT

H (

ft)

125

130

135

140

EL

EV

AT

ION

(ft

)

160

155

150

145

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

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F B

OR

ING

LO

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N S

HO

WN

ON

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GS

AR

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AT

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SU

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FA

CE

CO

ND

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NS

AT

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S A

ND

AT

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IME

S M

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DIF

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R. I

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S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

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AT

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ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.


ME

TR

O S

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CO

RE

MC

200 T

UN

NE

L Z

ON

E S

:\70131 G

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\GIN

TW

\LIB

RA

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2011.G

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G:\

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OR

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DE

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FIE

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NO

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LA

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AR

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14, 2011\S

ON

IC G

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ON

IC (

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GP

J 1

0/3

/11

1

12-inch thick Asphalt Concrete

FILL [Af]SILT to SILTY CLAY with GRAVEL - moist, dark brown to gray (7.5YR 3/3to 7.5Y 6/1), slate gravel (up to 1 inch in size)

No core recovery from 7½ to 11'


SILTY CLAY - stiff, very moist, dark brown to dark yellowish brown (7.5YR3/3 to 10YR 3/4), trace to some coarse sand, some subangular to subroundedslate gravel (up to ½ inch in size), layer of Silt

SILT - moist, dark yellowish brown (10YR 3/4), fine sand and trace to someclay, some slate gravel (up to 1½ inches in size), few shale fragments,alternating with layers of Sandy Silt

No core recovery from 17 to 20'

1 65

CL-ML

CL-ML

ML

12.7

LOG OF BORING

BORING NO.

RU

N #

S-111

HOLE DIAMETER

6 inches

GROUND EL.

BO

X #

% R

EC

OV

ER

Y

SA

MP

LE

LO

C.

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE


Boart Longyear / 600T Trusonic drill rig

DRILLING METHOD

Sonic Coring

DATES DRILLED

2/14/2011 - 2/18/2011



BOREHOLE LOCATION

692+57, Rt 16 feet

249 feet

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

Project No.: 4953-10-1561


Figure: A-3.11a


DE

PT

H (

ft)

5

10

15

20

EL

EV

AT

ION

(ft

)

245

240

235

230

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

HE

R T

IME

S M

AY

DIF

FE

R. I

NT

ER

FA

CE

S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.

Field Tech: DLPrepared/Date: PK/WL 10/1/2011Checked/Date: HP/PE 10/2/2011

ME

TR

O S

OIL

CO

RE

MC

200 T

UN

NE

L Z

ON

E S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

RY

MA

CT

EC

JU

NE

2011.G

LB

G:\

PR

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CT

_D

IRE

CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\S

ON

IC G

INT

LO

GS

\101561 S

ON

IC (

111-1

20).

GP

J 1

0/3

/11

2

3

4

5

Becomes dark yellowish brown (10YR 3/4), fine sand and trace gravel,subrounded to well rounded slate gravel (up to ¾ inch in size)

SILTY SAND - moist, dark yellowish brown, fine to medium-grained, somegravel, subrounded to well rounded (up to 1 inch in size)

QUATERNARY OLDER ALLUVIUM [Qalo]SILT with SAND - moist, dark yellowish brown (10YR 3/4), fine sand, tracesubrounded to well rounded gravel (up to 1-inch in size)

Some clay

No core recovery from 27' to 27.9'

SANDY SILT - moist, dark yellowish brown (10YR 3/4), fine grained, traceclay, occasional slate gravel (up to 2 inches in size), disturbed, alternating withlayers of Silty Sand

SILT - moist, dark yellowish brown, fine sand, some shale fragments, some clay

More clay

Lenses of Silty Sand, moist, dark olive brown (2.5YR 3/3), massive

SILTY SAND with GRAVEL - moist, dark olive green (5Y 3/3), fine tomedium grained, slate gravel, subround to suboval (up to 1½ inches in size), 3to 4-inch thick, occasional interbedded Sandy Silt

Becomes wet, fine to coarse grained, gravel (up to ¾ inch in size)

Becomes fine to medium grained, trace gravel (up to ½ inch in size)

2

3

70

80

100

100

16

ML

SM

ML

ML

ML

SM

LOG OF BORING

BORING NO.

(Continued)

RU

N #

S-111

HOLE DIAMETER

6 inches

GROUND EL.

BO

X #

% R

EC

OV

ER

Y

SA

MP

LE

LO

C.

PE

RC

EN

T P

AS

SIN

GN

o. 2

00

SIE

VE


Boart Longyear / 600T Trusonic drill rig

DRILLING METHOD

Sonic Coring

DATES DRILLED

2/14/2011 - 2/18/2011



BOREHOLE LOCATION

692+57, Rt 16 feet

249 feet

MO

IST

UR

E C

ON

TE

NT

(% o

f d

ry w

t.)

Project No.: 4953-10-1561


Figure: A-3.11b


DE

PT

H (

ft)

25

30

35

40

EL

EV

AT

ION

(ft

)

225

220

215

210

TH

IS R

EC

OR

D I

S A

N I

NT

ER

PR

ET

AT

ION

OF

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

TH

E E

XP

LO

RA

TIO

N L

OC

AT

ION

. L

AT

ITU

DE

AN

D L

ON

GIT

UD

E O

F B

OR

ING

LO

CA

TIO

N S

HO

WN

ON

LO

GS

AR

E A

PP

RO

XIM

AT

E.

SU

BS

UR

FA

CE

CO

ND

ITIO

NS

AT

OT

HE

R L

OC

AT

ION

S A

ND

AT

OT

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R T

IME

S M

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DIF

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R. I

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FA

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S B

ET

WE

EN

ST

RA

TA

AR

E A

PP

RO

XIM

AT

E. T

RA

NS

ITIO

NS

BE

TW

EE

N S

TR

AT

A M

AY

BE

GR

AD

UA

L.

Field Tech: DLPrepared/Date: PK/WL 10/1/2011Checked/Date: HP/PE 10/2/2011

ME

TR

O S

OIL

CO

RE

MC

200 T

UN

NE

L Z

ON

E S

:\70131 G

EO

TE

CH

\GIN

TW

\LIB

RA

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MA

CT

EC

JU

NE

2011.G

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G:\

PR

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CT

_D

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CT

OR

IES

\4953\2

010\1

01561_M

ET

RO

_W

ES

TS

IDE

_E

XT

EN

SIO

N\6

.2.3

.1 G

EO

TE

CH

NIC

AL

DE

SIG

N\3

.2 A

LL

FIE

LD

NO

TE

S\G

INT

LO

G\N

EW

TE

MP

LA

TE

- M

AR

CH

14, 2011\S

ON

IC G

INT

LO

GS

\101561 S

ON

IC (

111-1

20).

GP

J 1

0/3

/11

Documents

DRILLING COMPANY/DRILLING EQUIPMENT BORING …media.metro.net/projects_studies/westside/images/final_eir-eis... · Silty Sand, fine grained; varying color, mainly light brownish gray