21
ffAl Budinger liS!J & Associates Proudly serving ,the Inland Northwest since 1976 Matt Zarecor, P.E., Assistant County Engineer Spokane County Public Works 1026 W. Broadway Avenue Spokane, WA 99201 PROJECT: Old Corral Pit Spokane, WA Geotechnical Engineering Environmental Engineering Construction Material Testing Subsurface Exploration Special Inspection July 24, 2017 Job Number XI 7428 SUBJECT: Results of Subsurface Exploration of Fill Material This report presents the results of test pit exploration to evaluate fill materials located at the Old Corral Pit. The work was requested to help determine the extent and depths of the fill material located at the site. A vicinity map, site plan, photographs and test pit logs are attached to this report. We logged 18 test pits at the Corral Pit on 19 & 20 July 2017 throughout the property. The pits were excavated by County Personnel using a John Deer l 80G with a 36" bucket. The pits were excavated to depths until native materials were observed, to the maximum capability or the excavator, or until caving of the pits did not allow for further excavation. The conditions encountered are described in the test pit logs and are illustrated in the attached photographs. We appreciate the opportunity to be of service. If you have any questions please don't hesitate to call. Respectfully Submitted: BUDINGER & ASSOCIATES Derry D. Callender Staff Geologist Attachments: I. Site Plan 2. Test Pit Logs 3. Photographs· 1101 North Fancher Rd. Spokane Valley, WA 99212 Tel: 509.535.8841 Fax: 509.535.9589 www.budingerinc.com Stephen D. Burchett, PE Principal

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ffAl Budinger liS!J & Associates Proudly serving ,the Inland Northwest since 1976

Matt Zarecor, P.E., Assistant County Engineer Spokane County Public Works 1026 W. Broadway Avenue Spokane, WA 99201

PROJECT: Old Corral Pit Spokane, WA

Geotechnical Engineering Environmental Engineering

Construction Material Testing Subsurface Exploration

Special Inspection

July 24, 2017

Job Number XI 7428

SUBJECT: Results of Subsurface Exploration of Fill Material

This report presents the results of test pit exploration to evaluate fill materials located at the Old Corral Pit. The work was requested to help determine the extent and depths of the fill material located at the site. A vicinity map, site plan, photographs and test pit logs are attached to this report.

We logged 18 test pits at the Corral Pit on 19 & 20 July 2017 throughout the property. The pits were excavated by County Personnel using a John Deer l 80G with a 36" bucket. The pits were excavated to depths until native materials were observed, to the maximum capability or the excavator, or until caving of the pits did not allow for further excavation. The conditions encountered are described in the test pit logs and are illustrated in the attached photographs.

We appreciate the opportunity to be of service. If you have any questions please don't hesitate to call.

Respectfully Submitted: BUDINGER & ASSOCIATES

Derry D. Callender Staff Geologist

Attachments: I. Site Plan 2. Test Pit Logs 3. Photographs·

1101 North Fancher Rd. Spokane Valley, WA 99212

Tel: 509.535.8841 Fax: 509.535.9589

www.budingerinc.com

Stephen D. Burchett, PE Principal

Spokane County Public Works

Spokane County Public Works

July 21, 20170 260 520130 ft

0 75 15037.5 m

1:2,800

steve
Typewritten Text
Test Pit Elevations Estimated From This Topographic Map An Elevation Survey is Recommended if More Accurate Elevations are Needed
steve
Typewritten Text
steve
Typewritten Text
steve
Typewritten Text

GRAVEL with Sand and Silt (fill)

SAND with Gravel and Silt, Cobbles,occasional Boulder with Debris, coarse to fine,subangular (FILL)

(wood debris at 4 ft)

(asphalt pieces 6 to 9 ft)

(large asphalt & concrete, very large piecescould not advance past 14 ft)

End of Excavation @ 14 ft

dry, gray, very dense

dry, brown, dense

no free groundwaterobserved

dry, gray, very dense

dry, brown, dense

no free groundwaterobserved

GRAVEL with Sand and Silt (fill)

SAND with Gravel and Silt, Cobbles,occasional Boulder with Debris, coarse to fine,subangular (FILL)

(wood debris at 4 ft)

(asphalt pieces 6 to 9 ft)

(large asphalt & concrete, very large piecescould not advance past 14 ft)

DESCRIPTION

DDC

FIGURE 2-1

SO

IL L

OG

Elevation:7-19-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 1gravel

Excavator:1804 ft

Logged by:Date: 7-19-17

0

5

10

15

20

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

TEST PIT 1TEST PIT 1

DDC

FIGURE 2-1

SO

IL L

OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 5' x 25'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1804 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

RA

L P

IT.G

PJ

7

/24/

17

GRAVEL with Sand, coarse, subangular tosubrounded, (Fill)

SAND with Gravel (in 2" seems), coarse tomedium, subangular to subrounded (NativeSands)

End of Excavation @ 7 ft

dry, brown, gray, dense

dry, brown, moderatelydense

no free groundwaterobserved

dry, brown, gray, dense

dry, brown, moderatelydense

no free groundwaterobserved

GRAVEL with Sand, coarse, subangular tosubrounded, (Fill)

SAND with Gravel (in 2" seems), coarse tomedium, subangular to subrounded (NativeSands)

DESCRIPTION

DDC

FIGURE 2-2

SO

IL L

OG

Elevation:7-19-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 2gravel

Excavator:1789 ft

Logged by:Date: 7-19-17

0

5

10

15

20

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

TEST PIT 2TEST PIT 2

DDC

FIGURE 2-2

SO

IL L

OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 4' x 8'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1789 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

RA

L P

IT.G

PJ

7

/24/

17

Silty GRAVEL with Sand, coarse, subangularto subrounded (FILL)

GRAVEL with Sand and Cobbles, occasionalBoulder, coarse, subangular to subrounded(Native Gravel)

(coarser gravel and more cobbles at 5 ft)

End of Excavation @ 8.5 ft

dry, gray, very dense

dry, brown, gray, dense

no free groundwaterobserved

dry, gray, very dense

dry, brown, gray, dense

no free groundwaterobserved

Silty GRAVEL with Sand, coarse, subangularto subrounded (FILL)

GRAVEL with Sand and Cobbles, occasionalBoulder, coarse, subangular to subrounded(Native Gravel)

(coarser gravel and more cobbles at 5 ft)

DESCRIPTION

DDC

FIGURE 2-3

SO

IL L

OG

Elevation:7-19-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 3gravel

Excavator:1793 ft

Logged by:Date: 7-19-17

0

5

10

15

20

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

TEST PIT 3TEST PIT 3

DDC

FIGURE 2-3

SO

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OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 4' x 9'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1793 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

RA

L P

IT.G

PJ

7

/24/

17

GRAVEL, coarse, subangular (Fill)

GRAVEL with Sand, Cobbles and Silt,occasional Boulder, coarse to fine, subangularto subrounded (Native Gravel)

End of Excavation @ 4 ft

dry, gray, very dense

dry, gray, brown, dense

no free groundwaterobserved

dry, gray, very dense

dry, gray, brown, dense

no free groundwaterobserved

GRAVEL, coarse, subangular (Fill)

GRAVEL with Sand, Cobbles and Silt,occasional Boulder, coarse to fine, subangularto subrounded (Native Gravel)

DESCRIPTION

DDC

FIGURE 2-4

SO

IL L

OG

Elevation:7-19-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 4gravel

Excavator:1790 ft

Logged by:Date: 7-19-17

0

5

10

15

20

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

TEST PIT 4TEST PIT 4

DDC

FIGURE 2-4

SO

IL L

OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 4' x 6'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1790 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

RA

L P

IT.G

PJ

7

/24/

17

GRAVEL with Sand, Cobbles and Silt andDebris, coarse, subangular to subrounded(Fill)

(asphalt pieces 4 to 7 ft)

(metal debris at 6 ft)

GRAVEL with Sand, Cobbles and Silt,occasional Boulder, coarse to fine, subangularto subrounded (Native Gravel)

(slightly moist at 10 ft)

End of Excavation @ 12 ft

dry, brown, moderatelydense

dry, brown, gray, dense

slightly moist

no free groundwaterobserved

dry, brown, moderatelydense

dry, brown, gray, dense

slightly moist

no free groundwaterobserved

GRAVEL with Sand, Cobbles and Silt andDebris, coarse, subangular to subrounded(Fill)

(asphalt pieces 4 to 7 ft)

(metal debris at 6 ft)

GRAVEL with Sand, Cobbles and Silt,occasional Boulder, coarse to fine, subangularto subrounded (Native Gravel)

(slightly moist at 10 ft)

DESCRIPTION

DDC

FIGURE 2-5

SO

IL L

OG

Elevation:7-19-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 5grass & weeds

Excavator:1794 ft

Logged by:Date: 7-19-17

0

5

10

15

20

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

TEST PIT 5TEST PIT 5

DDC

FIGURE 2-5

SO

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OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 6' x 14'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1794 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

RA

L P

IT.G

PJ

7

/24/

17

COBBLES & GRAVEL, with Sand and Silt(Fill)

GRAVEL with Sand, Cobbles and Silt withDebris, coarse, subangular to subrounded(Fill)

(dark gray ash or silt pocket on west side ofpit, 2 feet thick)

GRAVEL with Sand, Cobbles & Boulders,coarse, subangular to subrounded (Likely Fill)

(24 inch basalt boulder at 8 ft)

(basalt cobbles and boulders from 9 to 11 ft)

(piece of sewer pipe)

GRAVEL with Sand, Silt, Cobbles, occasionalBoulder, coarse to fine, subangular tosubrounded (Likely Native Gravels)

(28 inch rounded boulder at 14 ft)End of Excavation @ 12.5 ft

dry, gray, brown, verydense

dry, brown, dense

dry, brown, dense

no free groundwaterobserved

dry, gray, brown, verydense

dry, brown, dense

dry, brown, dense

no free groundwaterobserved

COBBLES & GRAVEL, with Sand and Silt(Fill)

GRAVEL with Sand, Cobbles and Silt withDebris, coarse, subangular to subrounded(Fill)

(dark gray ash or silt pocket on west side ofpit, 2 feet thick)

GRAVEL with Sand, Cobbles & Boulders,coarse, subangular to subrounded (Likely Fill)

(24 inch basalt boulder at 8 ft)

(basalt cobbles and boulders from 9 to 11 ft)

(piece of sewer pipe)

GRAVEL with Sand, Silt, Cobbles, occasionalBoulder, coarse to fine, subangular tosubrounded (Likely Native Gravels)

(28 inch rounded boulder at 14 ft)

DESCRIPTION

DDC

FIGURE 2-6

SO

IL L

OG

Elevation:7-19-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 6, Top of excavation at 1,808grasss & weeds

Excavator:1808 ft

Logged by:Date: 7-19-17

0

5

10

15

20

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

TEST PIT 6TEST PIT 6

DDC

FIGURE 2-6

SO

IL L

OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 6 x 24'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1808 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

RA

L P

IT.G

PJ

7

/24/

17

GRAVEL with Sand, Silt and Cobbles, coarse,subangular to subrounded (Fill)

GRAVEL with Sand, Silt, occasional Cobblesand Boulders, coarse, subangular tosubrounded (Native Gravel)

End of Excavation @ 6 ft

dry, gray, very dense

dry, brown, gray, verydense

no free groundwaterobserved

dry, gray, very dense

dry, brown, gray, verydense

no free groundwaterobserved

GRAVEL with Sand, Silt and Cobbles, coarse,subangular to subrounded (Fill)

GRAVEL with Sand, Silt, occasional Cobblesand Boulders, coarse, subangular tosubrounded (Native Gravel)

DESCRIPTION

DDC

FIGURE 2-7

SO

IL L

OG

Elevation:7-19-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 7gravel

Excavator:1799 ft

Logged by:Date: 7-19-17

0

5

10

15

20

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

TEST PIT 7TEST PIT 7

DDC

FIGURE 2-7

SO

IL L

OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 6 x 24'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1799 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

RA

L P

IT.G

PJ

7

/24/

17

GRAVEL with Sand, Silt, Cobbles andBoulders with Debris, coarse, subangular tosubrounded (Fill)

(asphalt pieces 2 1/2 to 3 1/2 ft)

(dark brown silt and gravel) from 3 1/2 ft to 14ft)

COBBLES & GRAVEL with Sand and Silt,coarse, subrounded, (Native Gravel)

(brown/orange clay at 15 1/2 ft)

End of Excavation @ 16 ft

dry, brown, dark brown,dense

dry, brown, very dense

no free groundwaterobserved

dry, brown, dark brown,dense

dry, brown, very dense

no free groundwaterobserved

GRAVEL with Sand, Silt, Cobbles andBoulders with Debris, coarse, subangular tosubrounded (Fill)

(asphalt pieces 2 1/2 to 3 1/2 ft)

(dark brown silt and gravel) from 3 1/2 ft to 14ft)

COBBLES & GRAVEL with Sand and Silt,coarse, subrounded, (Native Gravel)

(brown/orange clay at 15 1/2 ft)

DESCRIPTION

DDC

FIGURE 2-8

SO

IL L

OG

Elevation:7-19-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 8, Top of excavation at 1,820gravel, grass & weeds

Excavator:1820 ft

Logged by:Date: 7-19-17

0

5

10

15

20

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

TEST PIT 8TEST PIT 8

DDC

FIGURE 2-8

SO

IL L

OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 6 x 20'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1820 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

RA

L P

IT.G

PJ

7

/24/

17

GRAVEL with Sand, Silt and Cobbles andBoulders with Debris, coarse to fine,subangular (Fill)

(likely Native Gravels below 6 ft in the bank)

(metal rebar)

(very large boulders at 14 ft at base of bank,48")

GRAVEL with Sand, Cobbles and Boulders,coarse, subangular to subrounded (NativeGravels below interface of slope/level grade)

End of Excavation @ 18 ft

dry, brown, dense

moist, brown, gray,dense

no free groundwaterobserved

dry, brown, dense

moist, brown, gray,dense

no free groundwaterobserved

GRAVEL with Sand, Silt and Cobbles andBoulders with Debris, coarse to fine,subangular (Fill)

(likely Native Gravels below 6 ft in the bank)

(metal rebar)

(very large boulders at 14 ft at base of bank,48")

GRAVEL with Sand, Cobbles and Boulders,coarse, subangular to subrounded (NativeGravels below interface of slope/level grade)

DESCRIPTION

DDC

FIGURE 2-9

SO

IL L

OG

Elevation:7-20-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 9, Top of excavation at 1,806grass & weeds

Excavator:1806 ft

Logged by:Date: 7-20-17

0

5

10

15

20

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

TEST PIT 9TEST PIT 9

DDC

FIGURE 2-9

SO

IL L

OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 8' x 20'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1806 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

RA

L P

IT.G

PJ

7

/24/

17

SILT and SAnd with Gravel, Cobbles andDebris (street sweapings)

(light debris from 2 to 13 feet: sticks, plastic,stryrofoam pieces, paper)

(large cobbles at 12 ft)

(log at 12 1/2 ft)

Silty GRAVEL and COBBLES with Sand,coarse, subrounded (Likely Native Gravels)

End of Excavation @ 18 ft

dry, brown, dark brown,moderately dense

slightly moist, brown,gray, dense

no free groundwaterobserved

dry, brown, dark brown,moderately dense

slightly moist, brown,gray, dense

no free groundwaterobserved

SILT and SAnd with Gravel, Cobbles andDebris (street sweapings)

(light debris from 2 to 13 feet: sticks, plastic,stryrofoam pieces, paper)

(large cobbles at 12 ft)

(log at 12 1/2 ft)

Silty GRAVEL and COBBLES with Sand,coarse, subrounded (Likely Native Gravels)

DESCRIPTION

DDC

FIGURE 2-10

SO

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OG

Elevation:7-20-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 10gravel & silt

Excavator:1828 ft

Logged by:Date: 7-20-17

0

5

10

15

20

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

TEST PIT 10TEST PIT 10

DDC

FIGURE 2-10

SO

IL L

OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 8' x 20'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1828 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

RA

L P

IT.G

PJ

7

/24/

17

Silty GRAVEL with Cobbles and Sand,occasional Boulder, coarse, subangular tosubrounded (Native Gravels)

End of Excavation @ 8 ft

dry, brown, gray, dense

no free groundwaterobserved

dry, brown, gray, dense

no free groundwaterobserved

Silty GRAVEL with Cobbles and Sand,occasional Boulder, coarse, subangular tosubrounded (Native Gravels)

DESCRIPTION

DDC

FIGURE 2-11

SO

IL L

OG

Elevation:7-20-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 11gravel

Excavator:1786 ft

Logged by:Date: 7-20-17

0

5

10

15

20

MO

IST

UR

E,

CO

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,C

ON

DIT

ION

TEST PIT 11TEST PIT 11

DDC

FIGURE 2-11

SO

IL L

OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 7' x 12'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1786 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

RA

L P

IT.G

PJ

7

/24/

17

SAND with Gravel, coarse to medium,subangular to subrounded (Native Sands)

End of Excavation @ 5.5 ft

dry, brown, gray, loose

no free groundwaterobserved

dry, brown, gray, loose

no free groundwaterobserved

SAND with Gravel, coarse to medium,subangular to subrounded (Native Sands)

DESCRIPTION

DDC

FIGURE 2-12

SO

IL L

OG

Elevation:7-20-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 12gravel

Excavator:1777 ft

Logged by:Date: 7-20-17

0

5

10

15

20

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

TEST PIT 12TEST PIT 12

DDC

FIGURE 2-12

SO

IL L

OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 5' x 8'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1777 ft

TEST PIT LOGS

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ON

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DESCRIPTION

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1742

8 O

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PJ

7

/24/

17

GRAVEL with Sand, Silt and Cobbles,occasional Boulder, coarse, subangular tosubrounded (Native Gravel)

End of Excavation @ 10 ft

dry, brown, gray, dense

no free groundwaterobserved

dry, brown, gray, dense

no free groundwaterobserved

GRAVEL with Sand, Silt and Cobbles,occasional Boulder, coarse, subangular tosubrounded (Native Gravel)

DESCRIPTION

DDC

FIGURE 2-13

SO

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OG

Elevation:7-20-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 13bare

Excavator:1786 ft

Logged by:Date: 7-20-17

0

5

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TEST PIT 13TEST PIT 13

DDC

FIGURE 2-13

SO

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OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 5' x 12'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1786 ft

TEST PIT LOGS

MO

IST

UR

E,

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ON

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DE

PT

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DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

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L P

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PJ

7

/24/

17

Silty GRAVEL and COBBLES, with Sand,coarse, subangular (Fill)

Silty SAND with Gravel and Cobbles withDebris, occasional Boulder, fine, subangular(Fill)

(metal strip)

(metal)

(wood debris)

(caved twice at 12 ft, terminated pit due tocollapse)

End of Excavation @ 12 ft

dry, brown, dense

dry, dark brown, loose

no free groundwaterobserved

dry, brown, dense

dry, dark brown, loose

no free groundwaterobserved

Silty GRAVEL and COBBLES, with Sand,coarse, subangular (Fill)

Silty SAND with Gravel and Cobbles withDebris, occasional Boulder, fine, subangular(Fill)

(metal strip)

(metal)

(wood debris)

(caved twice at 12 ft, terminated pit due tocollapse)

DESCRIPTION

DDC

FIGURE 2-14

SO

IL L

OG

Elevation:7-20-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 14bare

Excavator:1784 ft

Logged by:Date: 7-20-17

0

5

10

15

20

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E,

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ON

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ION

TEST PIT 14TEST PIT 14

DDC

FIGURE 2-14

SO

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OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 12' x 14'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1784 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

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,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

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L P

IT.G

PJ

7

/24/

17

Silty SAND with Gravel, occasional Cobble,fine, subangular (Fill)

SAND with Gravel, occasional Cobble,coarse, subangular to subrounded (LikelyNative Sand)

End of Excavation @ 11 ft

dry, brown, gray, loose

dry, brown, gray, dense

no free groundwaterobserved

dry, brown, gray, loose

dry, brown, gray, dense

no free groundwaterobserved

Silty SAND with Gravel, occasional Cobble,fine, subangular (Fill)

SAND with Gravel, occasional Cobble,coarse, subangular to subrounded (LikelyNative Sand)

DESCRIPTION

DDC

FIGURE 2-15

SO

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OG

Elevation:7-20-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 15, Top of excavation at 1,804grass and weeds

Excavator:1804 ft

Logged by:Date: 7-20-17

0

5

10

15

20

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ON

DIT

ION

TEST PIT 15TEST PIT 15

DDC

FIGURE 2-15

SO

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OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 7' x 14'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1804 ft

TEST PIT LOGS

MO

IST

UR

E,

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ON

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DESCRIPTION

TE

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PIT

X

1742

8 O

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PJ

7

/24/

17

(below burms of fill) Silty GRAVEL with Sand,Cobbles and Debris, coarse to fine,subangular (Fill with debris)(asphalt)

(electric conduit and very long steel guard railcable)

SAND with Gravel (fine) and Silt, occasionalCobble, coarse, subangular to subrounded(Fill)

GRAVEL with Sand, occasional Cobblecoarse to fine, subangular to subrounded(Possible Native Gravel)

(digging terminated at 10 ft due to caving)End of Excavation @ 10 ft

dry, dark brown, loose

dry, brown, loose

dry, brown, gray, dense

no free groundwaterobserved

dry, dark brown, loose

dry, brown, loose

dry, brown, gray, dense

no free groundwaterobserved

(below burms of fill) Silty GRAVEL with Sand,Cobbles and Debris, coarse to fine,subangular (Fill with debris)(asphalt)

(electric conduit and very long steel guard railcable)

SAND with Gravel (fine) and Silt, occasionalCobble, coarse, subangular to subrounded(Fill)

GRAVEL with Sand, occasional Cobblecoarse to fine, subangular to subrounded(Possible Native Gravel)

(digging terminated at 10 ft due to caving)

DESCRIPTION

DDC

FIGURE 2-16

SO

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OG

Elevation:7-20-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 16gravel burms

Excavator:1792 ft

Logged by:Date: 7-20-17

0

5

10

15

20

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ON

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TEST PIT 16TEST PIT 16

DDC

FIGURE 2-16

SO

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OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 9' x 14'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1792 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

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ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

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IT.G

PJ

7

/24/

17

Silty GRAVEL with Cobbles and Sand withDebris, coarse, subangular to subrounded,(Fill with Debris)

(wood debris at 2 ft)

(metal rebar at 2 1/2 ft)

(asphalt at 3 ft)

Silty GRAVEL with Sand, occasional Cobble,coarse to fine, subangular to subround (Fill)

Silty GRAVEL with Sand, occasional Cobble,coarse to fine (Possible Native Gravel - couldnot determine due to caving)

End of Excavation @ 10 ft

dry, brown, loose

dry, brown, loose

dry, brown, dense

no free groundwaterobserved

dry, brown, loose

dry, brown, loose

dry, brown, dense

no free groundwaterobserved

Silty GRAVEL with Cobbles and Sand withDebris, coarse, subangular to subrounded,(Fill with Debris)

(wood debris at 2 ft)

(metal rebar at 2 1/2 ft)

(asphalt at 3 ft)

Silty GRAVEL with Sand, occasional Cobble,coarse to fine, subangular to subround (Fill)

Silty GRAVEL with Sand, occasional Cobble,coarse to fine (Possible Native Gravel - couldnot determine due to caving)

DESCRIPTION

DDC

FIGURE 2-17

SO

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OG

Elevation:7-20-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 17grass & weeds

Excavator:1793 ft

Logged by:Date: 7-20-17

0

5

10

15

20

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ON

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ION

TEST PIT 17TEST PIT 17

DDC

FIGURE 2-17

SO

IL L

OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 7' x 12'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1793 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

RA

L P

IT.G

PJ

7

/24/

17

GRAVEL with Sand, Cobbles and Silt,occasional Boulder, coarse, subangular tosubrounded (Native Gravel)

End of Excavation @ 5 ft

dry, brown, gray, dense

no free groundwaterobserved

dry, brown, gray, dense

no free groundwaterobserved

GRAVEL with Sand, Cobbles and Silt,occasional Boulder, coarse, subangular tosubrounded (Native Gravel)

DESCRIPTION

DDC

FIGURE 2-18

SO

IL L

OG

Elevation:7-20-17

0

5

10

15

20

Equipment:Location:Surface:

Spokane CountyCAT 180G w/ 36" bucketLocation 18grass & weeds

Excavator:1791 ft

Logged by:Date: 7-20-17

0

5

10

15

20

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

TEST PIT 18TEST PIT 18

DDC

FIGURE 2-18

SO

IL L

OG

Elevation:

DE

PT

H

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

Logged by:

TEST PIT LOGS

Date:

Size of hole: 4' x 7'

Project: Old Corral Pit

Location: Spokane, WA

Number: X17428

SA

MP

LE

1791 ft

TEST PIT LOGS

MO

IST

UR

E,

CO

LOR

,C

ON

DIT

ION

DE

PT

H

DESCRIPTION

TE

ST

PIT

X

1742

8 O

LD C

OR

RA

L P

IT.G

PJ

7

/24/

17