08_Soil Boring Logs (220908).pdf

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This document is a geotechnical boring log report for the Huron-Manistee Largo Springs project in Oscoda, Michigan, compiled by Gosling Czubak Engineering Sciences, Inc. The report documents subsurface soil conditions at ten boring locations (SB-1 through SB-10) drilled on September 8, 2022, using hand auger methods with 3.5-inch diameter boreholes. The project was conducted for client C2AE with boring depths ranging from 1 to 5 feet below ground surface. The document includes a comprehensive key to soil classification, unified soil classification and symbol charts, laboratory classification criteria, and plasticity charts following ASTM standards.

The boring logs reveal varied subsurface stratigraphy across the site, with soil types including sandy topsoil, fine to medium sand (SP classification), peat deposits, clay (CL classification), and gravelly materials. Static water levels ranged from dry conditions at upland borings to 0.2 feet at boring SB-5 and 4.5 feet at boring SB-9. Drilling was frequently terminated early due to dry soil conditions that would not remain stable in the hand auger or water saturation preventing further advancement. Key observations include organic peat with roots at multiple locations, occasional cobbles and gravel, and soil moisture conditions varying from dry to saturated. All boreholes were backfilled with auger cuttings following completion. This site characterization data pertains only to the specific boring locations and dates documented and should not be interpreted as representative of the entire site.

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Key to Gosling Czubak Boring Logs and Well Construction Diagrams

New Version 2015 WWW.GOSLINGCZUBAK.COM

SOIL CLASSIFICATION INFORMATION

SOIL DESCRIPTIONS

Example:

1a 1b

Note:

3 (USCS)

Note:

Boulders SPT N-Value SPT N-Value Ppen, tsf Cobbles W.O.H. to 4 "very soft" WOH to 2 0 - 0.125 Course gravel 5 to 10 "soft" 2 to 4 0.125 - 0.25 Fine gravel 11 to 30 "medium stiff" 4 to 8 0.25 - 0.5 Coarse sand 31 to 50 "stiff" 8 to 15 0.5 - 1.0 Medium sand over 50 "very stiff" 15 to 30 1.0 - 2.0 Fine sand "hard" over 30 2.0 - 4.0 Clay/Silt

NOTES AND GENERAL INFORMATION

3. Stratigraphic Contacts: Solid line denotes a sudden, observed soil transition.

Dashed line denotes a gradual or gradational soil transition.

Dotted line denotes an inferred transition, therefore the type and specific location of the transition is unknown / approximated.

3. Common abbreviations: WOH = Weight of (SPT) Hammer DHH = Down Hole Hammer HA = Hand Auger DR = Drove Rock (During SPT) NR = No Recovery Ppen = Pocket Penetrometer (unconfined compressive strength in tons per square foot)

1. Drilling and sampling activities are indicative of subsurface conditions only at locations where data are taken, and when data are taken. Conditions at locations not evaluated may differ from professional interpretation.

2. Environmental boring logs present soil and groundwater data collected for resource development, depositional environment, groundwater flow and/or contaminant transport analyses and may not for be suited for geotechnical or structural engineering use unless otherwise arranged.

- > 12-in

- 12 to 3 in

- 3 to 3/4 in

- 3/4 to 0.187-in

- 4.75 to 2.0-mm

- 2.0 to 0.425-mm

- 0.425 to 0.075-mm

- < 0.075-mm

"very loose" "loose" "medium dense" "dense" "very dense"

Particle Sizes Relative Density Consistency

Silty fine SAND (SM) - trace clay - occasional clay seams - dense - brown/gray below 40 feet - wet (1 - 2 - 3 - 4 - 5 - 6 - 7- 8 - 9 - 10)

FOR COARSE GRAINED PRIMARY MATERIAL: Secondary Material of 15 to 50%, if applicable. (eg. Silty, Clayey) FOR FINE GRAINED PRIMARY MATERIAL: Secondary Material of 30 to 50%, if applicable (eg. Gravelly, Sandy)

PRIMARY MATERIAL (in CAPs)- SILT, SAND, GRAVEL, or CLAY fine, medium and/or coarse grained SAND fine and/or coarse grained GRAVEL

Unified Soil Classification System (USCS) symbol(s) is presented at the end of the soil description (in parentheses) based on ASTM gradation and plasticity testing. See attached USCS chart.

Additional Materials (with percentage descriptors as below)

15 to 30% - "some" or "with" 5 to 15% - "little" < 5% - "trace" or "few"

5 to 15% - "little" < 5% - "trace" or "few"

Coarse-Grained MaterialFine Grained Material

Description of sorting or grading. For example, "well-sorted, or "poorly graded."

Occurrences (with frequency descriptors as below) - cobbles, boulders, bricks, layers, seams, etc.

Seams = < 1-inch in thickness Layers = > 1-inch in thickness

Greater than one per 12-inches = "frequent" One per 12-inches = "occasional"

"moist" = damp but not saturated "wet" = saturated

Angularity and mineral composition, if warranted

Odor or Sheen, if applicable

Soil Strength Description (Relative Density for gravel, sand and silt, or Consistency for clay)

Color

Moisture - "dry" or "wet" or "moist" "dry" = absence of apparent moisture

Sandy TOPSOIL- organic- black

0.5 Fine SAND (SP)- trace coarse sand- light brown

2.25 Fine to medium SAND (SP)- little coarse sand and

gravel- light brown

Fine SAND (SP)- light brown

Boring terminated at 4.5 ft.

Engineers Surveyors

Landscape Architecture

Environmental and Drilling Services 1280 Business Park Dr., Traverse City, Michigan 49686

(231) 946-9191

PROJECT: Huron-Manistee Largo Springs LOG OF BORING: SB-1

PROJECT NO.: 2022541003 GROUND ELEVATION: NA DATE: 9/8/22

PROJECT LOCATION: Oscoda, MI DRILLING LOCATION: Beneath Main Platform

CLIENT: C2AE DRILLING METHOD: Hand Auger

DRILLING COMPANY: Gosling Czubak RIG: Hand Auger BOREHOLE DIAMETER (IN): 3.5 TOTAL DEPTH (FT): 4.5

DRILLER: E. Vincke LOGGED BY: E. Vincke STATIC WATER LEVEL: Dry CAVING DEPTH: 4.5

Soil at depth was dry and would not stay in hand auger. Could not advance to five feet bgs. Borehole was backfilled with soil cuttings.

G ra p h ic

Soil Description (See Boring Log Key) D e p th (f e e t)

S a m p le T yp e

S a m p le N o

B lo w C o u n ts

R e co ve ry in

Notes

P o ck e t P e n e tr o m e te r (t sf

TEST RESULTS

10 20 30 40 50 SPT RESULT - N Value

Water Content - %

Plastic Limit Liquid Limit

Figure

T h is i n fo rm a ti o n p e rt a in s o n ly t o t h is b o ri n g a n d s h o u ld n o t b e i n te rp re te d a s b e in g i n d ic it iv e o f th e s it e

Sandy TOPSOIL- organic- black

0.75 Fine SAND (SP)- trace coarse sand- light brown

Boring terminated at 4 ft.

Engineers Surveyors

Landscape Architecture

Environmental and Drilling Services 1280 Business Park Dr., Traverse City, Michigan 49686

(231) 946-9191

PROJECT: Huron-Manistee Largo Springs LOG OF BORING: SB-2

PROJECT NO.: 2022541003 GROUND ELEVATION: NA DATE: 9/8/22

PROJECT LOCATION: Oscoda, MI DRILLING LOCATION: Near first resting platform on stairway

CLIENT: C2AE DRILLING METHOD: Hand Auger

DRILLING COMPANY: Gosling Czubak RIG: Hand Auger BOREHOLE DIAMETER (IN): 3.5 TOTAL DEPTH (FT): 4

DRILLER: E. Vincke LOGGED BY: E. Vincke STATIC WATER LEVEL: Dry CAVING DEPTH: 4

Soil at depth was dry and would not stay in hand auger. Could not advance to five feet bgs. Borehole was backfilled with auger cuttings.

G ra p h ic

Soil Description (See Boring Log Key) D e p th (f e e t)

S a m p le T yp e

S a m p le N o

B lo w C o u n ts

R e co ve ry in

Notes

P o ck e t P e n e tr o m e te r (t sf

TEST RESULTS

10 20 30 40 50 SPT RESULT - N Value

Water Content - %

Plastic Limit Liquid Limit

Figure

T h is i n fo rm a ti o n p e rt a in s o n ly t o t h is b o ri n g a n d s h o u ld n o t b e i n te rp re te d a s b e in g i n d ic it iv e o f th e s it e

Sandy TOPSOIL- organic- black

0.5 Fine SAND (SP)- light brown

Fine SAND (SP)- trace coarse sand- light brown

Boring terminated at 4 ft.

Engineers Surveyors

Landscape Architecture

Environmental and Drilling Services 1280 Business Park Dr., Traverse City, Michigan 49686

(231) 946-9191

PROJECT: Huron-Manistee Largo Springs LOG OF BORING: SB-3

PROJECT NO.: 2022541003 GROUND ELEVATION: NA DATE: 9/8/22

PROJECT LOCATION: Oscoda, MI DRILLING LOCATION: Near single bench towards bottom of stairway

CLIENT: C2AE DRILLING METHOD: Hand Auger

DRILLING COMPANY: Gosling Czubak RIG: Hand Auger BOREHOLE DIAMETER (IN): 3.5 TOTAL DEPTH (FT): 4

DRILLER: E. Vincke LOGGED BY: E. Vincke STATIC WATER LEVEL: Dry CAVING DEPTH: 4

Soil at depth was dry and would not stay in hand auger. Could not advance to five feet bgs. Borehole was backfilled with auger cuttings.

G ra p h ic

Soil Description (See Boring Log Key) D e p th (f e e t)

S a m p le T yp e

S a m p le N o

B lo w C o u n ts

R e co ve ry in

Notes

P o ck e t P e n e tr o m e te r (t sf

TEST RESULTS

10 20 30 40 50 SPT RESULT - N Value

Water Content - %

Plastic Limit Liquid Limit

Figure

T h is i n fo rm a ti o n p e rt a in s o n ly t o t h is b o ri n g a n d s h o u ld n o t b e i n te rp re te d a s b e in g i n d ic it iv e o f th e s it e

Sandy TOPSOIL- organic- black 0.1

Fine to medium SAND (SP)- little coarse sand and gravel- light grayish brown

Organic PEAT- black- roots

1.75 Fine SAND (SP)- trace coarse sand- light brown- moist

Fine to coarse SAND (SP)- little gravel- occassional cobble- light brown- moist

2.5 Fine to medium SAND (SP)- trace gravel- light brown-

wet

Boring terminated at 5 ft.

Engineers Surveyors

Landscape Architecture

Environmental and Drilling Services 1280 Business Park Dr., Traverse City, Michigan 49686

(231) 946-9191

PROJECT: Huron-Manistee Largo Springs LOG OF BORING: SB-4

PROJECT NO.: 2022541003 GROUND ELEVATION: NA DATE: 9/8/22

PROJECT LOCATION: Oscoda, MI DRILLING LOCATION: S side of water below first dam

CLIENT: C2AE DRILLING METHOD: Hand Auger

DRILLING COMPANY: Gosling Czubak RIG: Hand Auger BOREHOLE DIAMETER (IN): 3.5 TOTAL DEPTH (FT): 5

DRILLER: E. Vincke LOGGED BY: E. Vincke STATIC WATER LEVEL: 2.5 CAVING DEPTH:

Borehole was backfilled with auger cuttings.

G ra p h ic

Soil Description (See Boring Log Key) D e p th (f e e t)

S a m p le T yp e

S a m p le N o

B lo w C o u n ts

R e co ve ry in

Notes

P o ck e t P e n e tr o m e te r (t sf

TEST RESULTS

10 20 30 40 50 SPT RESULT - N Value

Water Content - %

Plastic Limit Liquid Limit

Figure

T h is i n fo rm a ti o n p e rt a in s o n ly t o t h is b o ri n g a n d s h o u ld n o t b e i n te rp re te d a s b e in g i n d ic it iv e o f th e s it e

Fine to medium SAND (SP)- little coarse sand and gravel- light brown- wet at 0.2 ft bgs

1.75 CLAY (CL)- trace fine sand- gray

Boring terminated at 2.5 ft.

Engineers Surveyors

Landscape Architecture

Environmental and Drilling Services 1280 Business Park Dr., Traverse City, Michigan 49686

(231) 946-9191

PROJECT: Huron-Manistee Largo Springs LOG OF BORING: SB-5

PROJECT NO.: 2022541003 GROUND ELEVATION: NA DATE: 9/8/22

PROJECT LOCATION: Oscoda, MI DRILLING LOCATION: N side of water above first dam

CLIENT: C2AE DRILLING METHOD: Hand Auger

DRILLING COMPANY: Gosling Czubak RIG: Hand Auger BOREHOLE DIAMETER (IN): 3.5 TOTAL DEPTH (FT): 2.5

DRILLER: E. Vincke LOGGED BY: E. Vincke STATIC WATER LEVEL: 0.2 CAVING DEPTH:

A plastic liner above clay. Could not advance to five feet due to water. Borehole was backfilled with auger cuttings.

G ra p h ic

Soil Description (See Boring Log Key) D e p th (f e e t)

S a m p le T yp e

S a m p le N o

B lo w C o u n ts

R e co ve ry in

Notes

P o ck e t P e n e tr o m e te r (t sf

TEST RESULTS

10 20 30 40 50 SPT RESULT - N Value

Water Content - %

Plastic Limit Liquid Limit

Figure

T h is i n fo rm a ti o n p e rt a in s o n ly t o t h is b o ri n g a n d s h o u ld n o t b e i n te rp re te d a s b e in g i n d ic it iv e o f th e s it e

Fine to medium SAND (SP)- light brown

Fine to coarse SAND (SP) - little ravel- light brown- wet

Boring terminated at 3 ft.

Engineers Surveyors

Landscape Architecture

Environmental and Drilling Services 1280 Business Park Dr., Traverse City, Michigan 49686

(231) 946-9191

PROJECT: Huron-Manistee Largo Springs LOG OF BORING: SB-6

PROJECT NO.: 2022541003 GROUND ELEVATION: NA DATE: 9/8/22

PROJECT LOCATION: Oscoda, MI DRILLING LOCATION: In log retaining wall above S side of 2nd dam

CLIENT: C2AE DRILLING METHOD: Hand Auger

DRILLING COMPANY: Gosling Czubak RIG: Hand Auger BOREHOLE DIAMETER (IN): 3.5 TOTAL DEPTH (FT): 3

DRILLER: E. Vincke LOGGED BY: E. Vincke STATIC WATER LEVEL: 2 CAVING DEPTH:

Could not adance hand auger through wet gravel at three ft bgs. Borehole was backfilled with auger cuttings.

G ra p h ic

Soil Description (See Boring Log Key) D e p th (f e e t)

S a m p le T yp e

S a m p le N o

B lo w C o u n ts

R e co ve ry in

Notes

P o ck e t P e n e tr o m e te r (t sf

TEST RESULTS

10 20 30 40 50 SPT RESULT - N Value

Water Content - %

Plastic Limit Liquid Limit

Figure

T h is i n fo rm a ti o n p e rt a in s o n ly t o t h is b o ri n g a n d s h o u ld n o t b e i n te rp re te d a s b e in g i n d ic it iv e o f th e s it e

Gravelly fine to coarse SAND (SP-GP)- frequent cobble- light brown- wet at 0.25 ft bgs

Boring terminated at 1 ft.

Engineers Surveyors

Landscape Architecture

Environmental and Drilling Services 1280 Business Park Dr., Traverse City, Michigan 49686

(231) 946-9191

PROJECT: Huron-Manistee Largo Springs LOG OF BORING: SB-7

PROJECT NO.: 2022541003 GROUND ELEVATION: NA DATE: 9/8/22

PROJECT LOCATION: Oscoda, MI DRILLING LOCATION: N side of water below 2nd dam

CLIENT: C2AE DRILLING METHOD: Hand Auger

DRILLING COMPANY: Gosling Czubak RIG: Hand Auger BOREHOLE DIAMETER (IN): 3.5 TOTAL DEPTH (FT): 1

DRILLER: E. Vincke LOGGED BY: E. Vincke STATIC WATER LEVEL: 0.25 CAVING DEPTH:

Could not adance hand auger through wet gravel at 1 ft bgs. Borehole was backfilled with auger cuttings.

G ra p h ic

Soil Description (See Boring Log Key) D e p th (f e e t)

S a m p le T yp e

S a m p le N o

B lo w C o u n ts

R e co ve ry in

Notes

P o ck e t P e n e tr o m e te r (t sf

TEST RESULTS

10 20 30 40 50 SPT RESULT - N Value

Water Content - %

Plastic Limit Liquid Limit

Figure

T h is i n fo rm a ti o n p e rt a in s o n ly t o t h is b o ri n g a n d s h o u ld n o t b e i n te rp re te d a s b e in g i n d ic it iv e o f th e s it e

PEAT- black- roots

1.5 Fine to medium SAND (SP)- light brown- wet

Fine to medium SAND (SP)- little to trace coase sand and gravel- light brown- wet

Boring terminated at 5 ft.

Engineers Surveyors

Landscape Architecture

Environmental and Drilling Services 1280 Business Park Dr., Traverse City, Michigan 49686

(231) 946-9191

PROJECT: Huron-Manistee Largo Springs LOG OF BORING: SB-8

PROJECT NO.: 2022541003 GROUND ELEVATION: NA DATE: 9/8/22

PROJECT LOCATION: Oscoda, MI DRILLING LOCATION: Near platform at end of boardwalk

CLIENT: C2AE DRILLING METHOD: Hand Auger

DRILLING COMPANY: Gosling Czubak RIG: Hand Auger BOREHOLE DIAMETER (IN): 3.5 TOTAL DEPTH (FT): 5

DRILLER: E. Vincke LOGGED BY: E. Vincke STATIC WATER LEVEL: 1.5 CAVING DEPTH:

Borehole was backfilled with auger cuttings.

G ra p h ic

Soil Description (See Boring Log Key) D e p th (f e e t)

S a m p le T yp e

S a m p le N o

B lo w C o u n ts

R e co ve ry in

Notes

P o ck e t P e n e tr o m e te r (t sf

TEST RESULTS

10 20 30 40 50 SPT RESULT - N Value

Water Content - %

Plastic Limit Liquid Limit

Figure

T h is i n fo rm a ti o n p e rt a in s o n ly t o t h is b o ri n g a n d s h o u ld n o t b e i n te rp re te d a s b e in g i n d ic it iv e o f th e s it e

PEAT- very soft- frequent roots and wood-black

PEAT- occassional gravel

4.25 Fine SAND (SP)- light gray- wet

Boring terminated at 5 ft.

Engineers Surveyors

Landscape Architecture

Environmental and Drilling Services 1280 Business Park Dr., Traverse City, Michigan 49686

(231) 946-9191

PROJECT: Huron-Manistee Largo Springs LOG OF BORING: SB-9

PROJECT NO.: 2022541003 GROUND ELEVATION: NA DATE: 9/8/22

PROJECT LOCATION: Oscoda, MI DRILLING LOCATION: Heave in boardwalk near 2 steps

CLIENT: C2AE DRILLING METHOD: Hand Auger

DRILLING COMPANY: Gosling Czubak RIG: Hand Auger BOREHOLE DIAMETER (IN): 3.5 TOTAL DEPTH (FT): 5

DRILLER: E. Vincke LOGGED BY: E. Vincke STATIC WATER LEVEL: 4.5 CAVING DEPTH:

Borehole was backfilled with auger cuttings.

G ra p h ic

Soil Description (See Boring Log Key) D e p th (f e e t)

S a m p le T yp e

S a m p le N o

B lo w C o u n ts

R e co ve ry in

Notes

P o ck e t P e n e tr o m e te r (t sf

TEST RESULTS

10 20 30 40 50 SPT RESULT - N Value

Water Content - %

Plastic Limit Liquid Limit

Figure

T h is i n fo rm a ti o n p e rt a in s o n ly t o t h is b o ri n g a n d s h o u ld n o t b e i n te rp re te d a s b e in g i n d ic it iv e o f th e s it e

PEAT- moist- black- roots

0.75 Fine SAND (SP)- light gray- wet

Boring terminated at 2.5 ft.

Engineers Surveyors

Landscape Architecture

Environmental and Drilling Services 1280 Business Park Dr., Traverse City, Michigan 49686

(231) 946-9191

PROJECT: Huron-Manistee Largo Springs LOG OF BORING: SB-10

PROJECT NO.: 2022541003 GROUND ELEVATION: NA DATE: 9/8/22

PROJECT LOCATION: Oscoda, MI DRILLING LOCATION: Heave in boardwalk going to lake btw dams

CLIENT: C2AE DRILLING METHOD: Hand Auger

DRILLING COMPANY: Gosling Czubak RIG: Hand Auger BOREHOLE DIAMETER (IN): 3.5 TOTAL DEPTH (FT): 2.5

DRILLER: E. Vincke LOGGED BY: E. Vincke STATIC WATER LEVEL: 0.75 CAVING DEPTH:

Could not hand auger to five feet due to groundwater. Borehole was backfilled with auger cuttings.

G ra p h ic

Soil Description (See Boring Log Key) D e p th (f e e t)

S a m p le T yp e

S a m p le N o

B lo w C o u n ts

R e co ve ry in

Notes

P o ck e t P e n e tr o m e te r (t sf

TEST RESULTS

10 20 30 40 50 SPT RESULT - N Value

Water Content - %

Plastic Limit Liquid Limit

Figure

T h is i n fo rm a ti o n p e rt a in s o n ly t o t h is b o ri n g a n d s h o u ld n o t b e i n te rp re te d a s b e in g i n d ic it iv e o f th e s it e

Key to Gosling Czubak Boring Logs and Well Construction Diagrams(2020)
Boring Log Key_new Copy.pdf
version 2015

SB-1

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