P a n a m a C i t y O f f i c e
7500 McElvey Road, Suite A Panama City Beach, FL 32408
Tel: (850) 769-4773 Fax: (850) 872-9967 www.soearth.com
FL Certificate of Authorization #3737
MOBILE · MONTGOMERY · SUMMERDALE · DESTIN · PANAMA CITY · TALLAHASSEE · BATON ROUGE · MANDEVILLE · NEW ORLEANS
Geotechnical, Environmental & Construction Materials Testing
Baskerville-Donovan, Inc. September 19, 2016 449 W Main Street File No.: P16-0796 Pensacola, FL 32502 Attention: Mr. Dave Hemphill Subject: Sediment Sampling and for the Proposed Dredging at Lake Huntington in Panama
City, Florida Dear Mr. Hemphill: Southern Earth Sciences, Inc., has completed the geotechnical services for the Lake Huntington dredging project in Panama City, Florida. Our services were performed per your request. This report presents the results of our field and laboratory testing. FIELD INVESTIGATIVE PROCEDURES: On September 12, 2016, sediment samples were obtained by using a continuous PVC macro-core liner, driven by hand into the bottom. The samples were obtained by our personnel and the samples were delivered in air tight containers to our laboratory where the samples were then opened, classified, and prepared for laboratory testing. The approximate locations are indicated on the attached plan. Our test locations were measured from existing landmarks with a 100-foot tape. Therefore, test locations should be considered approximate. LABORATORY TESTING PROCEDURES In the laboratory, the bottom samples were extracted for visual classification and assignment of laboratory tests. Soil samples were visually classified in the laboratory in accordance with the Unified Soil Classification System. Laboratory tests were assigned based upon the visual classification of the soils. Laboratory classification testing included grain size analyses. Grain Size Analyses: Four (4) samples were selected to determine their grain size distribution in accordance with ASTM D-6913-04(2009). The laboratory test results are shown on the boring logs at the depth of the tested sample. Grain size distribution curves are included in the Appendix. SITE AND SOIL CONDITIONS: The dredging will take place north and south of the 15th Street bridge crossing Lake Huntington. Test locations were performed north (N-1) and south (S-1) of the bridge. Based upon the provided topographic information, the elevations range from 0 to -4 Feet on the south
Baskerville-Donovan, Inc. Lake Huntington
Page 2
side and 0 to -6 Feet on the north side. The provide plans also indicate the proposed dredge elevation is -3.5 Feet. At both test locations the sediment soils encountered were sands. The sands vary in color and texture and were generally clean sands. Trace amounts of organic matter were found at test location S-1 (South). The samples were obtained on September 12, 2016 around Low Tide, according to NOAA online publications. Low Tide for this date is +0.5 Ft. The samples were obtained in approximately 1.0 to 1.1 feet of water. GENERAL COMMENTS The soil samples obtained during this geotechnical investigation will be held for a period of thirty (30) days. After this period, the samples will be disposed of unless we are specifically requested, in writing, to do otherwise. A reasonable storage fee will be charged for samples stored for longer periods. While the soil sampling locations performed for this project are representative of subsurface soil conditions at their respective locations and for their respective vertical reaches, local variations of the subsurface materials are anticipated and may be encountered. We appreciate the opportunity to be of service to you on this project. Should additional information be required, please advise. Yours Very Truly, SOUTHERN EARTH SCIENCES, INC.
Logan A. Fowler, E.I. Eng. Reg. No. 1100015527 State of Florida
Michael K. Varner, P.E. Eng. Reg. No. 15037 State of Florida
Baskerville-Donovan, Inc. Lake Huntington
Page 3
APPENDIX
Test Location Plan,
Boring Logs, &
Grain Size Distribution Curves
1
4
SP
SP
Water
Light Gray Fine SAND
Brown and Gray Fine SAND withTrace Organics
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
-3.5
-4.0
-4.5
-5.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
LL
N Value(blows/ft)
20 40 60 80
Page 1 of 1LOG OF BORING S-1 (South)Lake Huntington Sediment Sampling
Panama City, Florida
P16-0796
08/12/16
SPT Shelby Tube
Notes:- Sampled During Low Tide (+0.5)- Tidal Information Obtained from NOAA Online Publications
PROJECT:
LOCATION:
PROJECT NO.:
DATE:
METHOD:
DRILLER:
ENGR / GEOL:
SURFACE ELEVATION:
Hand Push
LF
LF
+0 ft
Per Plan
Water Level
NA
TU
RA
L M
OIS
TU
RE
(%)
PA
SS
ING
#20
0 S
IEV
E(%
)Soil SymbolsSampler Symbols
and Field Test Data
Water Observations: Sample Was Obtained Approximately1.0 Ft Below the Surface of the Water
Elevation /Depth
PL PI
ATTERBERGLIMITS (%)
LIQ
UID
LIM
IT
PLA
ST
IC L
IMIT
PLA
ST
ICIT
YIN
DE
X
MATERIAL DESCRIPTION
LOCATION
USCS
N - SPT Data (Blows/Ft) P - Pocket Penetrometer (tsf)
Sample Key:
PL LLMC
20 40 60 80Atterberg LimitsNatural Moisture
Measured: Perched:Est. Seasonal High GWL:
LOG
OF
BO
RIN
G
P16
-079
6.G
PJ
SE
S P
C F
L.G
DT
9/
19/1
6
Tested By: J.SHORES
Client
Project
Project No. Figure
SOUTHERNEARTH
SCIENCES, INC.
Location: S-1(South) Depth: 1.0-2.5' Sample Number: 1 9-13-16 9-14-16 9-16-16
BASKERVILLE DONOVAN
P16-0796
Identification Date Sampled Date Received Date Tested
PE
RC
EN
T F
INE
R
0
10
20
30
40
50
60
70
80
90
100
GRAIN SIZE - mm.
0.0010.010.1110100
% +3"Coarse
% Gravel
Fine Coarse Medium
% Sand
Fine Silt
% Fines
Clay
0.0 0.0 0.1 0.4 19.4 79.6 0.5
6 in. 3 in. 2 in.1½ in.
1 in.¾ in.
½ in.3/8 in.
#4 #10 #20 #30 #40 #60 #100#140
#200
U.S. SIEVE OPENING IN INCHES U.S. STANDARD SIEVE NUMBERS HYDROMETER
Particle Size Distribution Report
LAKE HUNINGTON SEDIMENT SAMPLING
SOUTHERN EARTH SCIENCES, INC.
GRAIN SIZE DISTRIBUTION TEST DATA 9/16/2016
Client: BASKERVILLE DONOVANProject: LAKE HUNINGTON SEDIMENT SAMPLINGProject Number: P16-0796 Location: S-1 (South)Depth: 1.0-2.5' Sample Number: 1Material Description: LIGHT GRAY FINE SANDDate Sampled: 9-13-16 Date Received: 9-14-16 Date Tested: 9-16-16Tested by: J.SHORES
Sieve Test Data
Post #200 Wash Test Weights (grams): Dry Sample and Tare = 396.40Tare Wt. = 0.00Minus #200 from wash = 0.5%
DrySample
and Tare(grams)
Tare(grams)
CumulativePan
Tare Weight(grams)
SieveOpening
Size
CumulativeWeight
Retained(grams)
PercentFiner
398.40 0.00 0.00 .75 0.00 100.0
.375 0.00 100.0
#4 0.38 99.9
#10 1.84 99.5
#20 7.59 98.1
#40 79.34 80.1
#60 261.25 34.4
#80 357.60 10.2
#100 382.27 4.0
#200 396.25 0.5
Fractional Components
Cobbles
0.0
Gravel
Coarse
0.0
Fine
0.1
Total
0.1
Sand
Coarse
0.4
Medium
19.4
Fine
79.6
Total
99.4
Fines
Silt Clay Total
0.5
D5
0.1559
D10
0.1791
D15
0.1958
D20
0.2104
D30
0.2379
D40
0.2657
D50
0.2956
D60
0.3294
D80
0.4244
D85
0.4634
D90
0.5203
D95
0.6277
FinenessModulus
1.52
Cu
1.84
Cc
0.96
Tested By: J.SHORES
Client
Project
Project No. Figure
SOUTHERNEARTH
SCIENCES, INC.
Location: S-1(South) Depth: 2.5-3.7' Sample Number: 2 9-13-16 9-14-16 8-16-16
BASKERVILLE DONOVAN
P16-0796
Identification Date Sampled Date Received Date Tested
PE
RC
EN
T F
INE
R
0
10
20
30
40
50
60
70
80
90
100
GRAIN SIZE - mm.
0.0010.010.1110100
% +3"Coarse
% Gravel
Fine Coarse Medium
% Sand
Fine Silt
% Fines
Clay
0.0 0.0 0.0 0.1 10.1 86.3 3.5
6 in. 3 in. 2 in.1½ in.
1 in.¾ in.
½ in.3/8 in.
#4 #10 #20 #30 #40 #60 #100#140
#200
U.S. SIEVE OPENING IN INCHES U.S. STANDARD SIEVE NUMBERS HYDROMETER
Particle Size Distribution Report
LAKE HUNINGTON SEDIMENT SAMPLING
SOUTHERN EARTH SCIENCES, INC.
GRAIN SIZE DISTRIBUTION TEST DATA 9/16/2016
Client: BASKERVILLE DONOVANProject: LAKE HUNINGTON SEDIMENT SAMPLINGProject Number: P16-0796 Location: S-1 (South)Depth: 2.5-3.7' Sample Number: 2Material Description: BROWN / GRAY FINE WITH ORGANICSDate Sampled: 9-13-16 Date Received: 9-14-16 Date Tested: 8-16-16Tested by: J.SHORES
Sieve Test Data
Post #200 Wash Test Weights (grams): Dry Sample and Tare = 339.10Tare Wt. = 0.00Minus #200 from wash = 3.4%
DrySample
and Tare(grams)
Tare(grams)
CumulativePan
Tare Weight(grams)
SieveOpening
Size
CumulativeWeight
Retained(grams)
PercentFiner
350.90 0.00 0.00 .75 0.00 100.0
.375 0.00 100.0
#4 0.00 100.0
#10 0.22 99.9
#20 4.74 98.6
#40 35.86 89.8
#60 138.75 60.5
#80 241.82 31.1
#100 288.97 17.6
#200 338.62 3.5
Fractional Components
Cobbles
0.0
Gravel
Coarse
0.0
Fine
0.0
Total
0.0
Sand
Coarse
0.1
Medium
10.1
Fine
86.3
Total
96.5
Fines
Silt Clay Total
3.5
D5
0.1031
D10
0.1277
D15
0.1431
D20
0.1557
D30
0.1777
D40
0.1990
D50
0.2219
D60
0.2486
D80
0.3353
D85
0.3730
D90
0.4280
D95
0.5305
FinenessModulus
1.13
Cu
1.95
Cc
0.99
1
1
SP
SP
Water
Light Gray Fine SAND
Gray and Dark Gray Fine SAND
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
-3.5
-4.0
-4.5
-5.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
LL
N Value(blows/ft)
20 40 60 80
Page 1 of 1LOG OF BORING N-1 (North)Lake Huntington Sediment Sampling
Panama City, Florida
P16-0796
08/12/16
SPT Shelby Tube
Notes:- Sampled During Low Tide (+0.5)- Tidal Information Obtained from NOAA Online Publications
PROJECT:
LOCATION:
PROJECT NO.:
DATE:
METHOD:
DRILLER:
ENGR / GEOL:
SURFACE ELEVATION:
Hand Push
LF
LF
+0 ft
Per Plan
Water Level
NA
TU
RA
L M
OIS
TU
RE
(%)
PA
SS
ING
#20
0 S
IEV
E(%
)Soil SymbolsSampler Symbols
and Field Test Data
Water Observations: Sample Was Obtained Approximately1.0 Ft Below the Surface of the Water
Elevation /Depth
PL PI
ATTERBERGLIMITS (%)
LIQ
UID
LIM
IT
PLA
ST
IC L
IMIT
PLA
ST
ICIT
YIN
DE
X
MATERIAL DESCRIPTION
LOCATION
USCS
N - SPT Data (Blows/Ft) P - Pocket Penetrometer (tsf)
Sample Key:
PL LLMC
20 40 60 80Atterberg LimitsNatural Moisture
Measured: Perched:Est. Seasonal High GWL:
LOG
OF
BO
RIN
G
P16
-079
6.G
PJ
SE
S P
C F
L.G
DT
9/
19/1
6
Tested By: J.SHORES
Client
Project
Project No. Figure
SOUTHERNEARTH
SCIENCES, INC.
Location: N-1(North) Depth: 1.0'-2.0' Sample Number: 3 9-13-16 9-14-16 9-16-16
BASKERVILLE DONOVAN
P16-0796
Identification Date Sampled Date Received Date Tested
PE
RC
EN
T F
INE
R
0
10
20
30
40
50
60
70
80
90
100
GRAIN SIZE - mm.
0.0010.010.1110100
% +3"Coarse
% Gravel
Fine Coarse Medium
% Sand
Fine Silt
% Fines
Clay
0.0 0.0 0.0 0.0 7.1 92.4 0.5
6 in. 3 in. 2 in.1½ in.
1 in.¾ in.
½ in.3/8 in.
#4 #10 #20 #30 #40 #60 #100#140
#200
U.S. SIEVE OPENING IN INCHES U.S. STANDARD SIEVE NUMBERS HYDROMETER
Particle Size Distribution Report
LAKE HUNINGTON SEDIMENT SAMPLING
SOUTHERN EARTH SCIENCES, INC.
GRAIN SIZE DISTRIBUTION TEST DATA 9/16/2016
Client: BASKERVILLE DONOVANProject: LAKE HUNINGTON SEDIMENT SAMPLINGProject Number: P16-0796 Location: N-1 (North)Depth: 1.0-2.0' Sample Number: 3Material Description: LIGHT GRAY FINE SANDDate Sampled: 9-13-16 Date Received: 9-14-16 Date Tested: 9-16-16Tested by: J.SHORES
Sieve Test Data
Post #200 Wash Test Weights (grams): Dry Sample and Tare = 333.70Tare Wt. = 0.00Minus #200 from wash = 0.5%
DrySample
and Tare(grams)
Tare(grams)
CumulativePan
Tare Weight(grams)
SieveOpening
Size
CumulativeWeight
Retained(grams)
PercentFiner
335.40 0.00 0.00 .75 0.00 100.0
.375 0.00 100.0
#4 0.00 100.0
#10 0.00 100.0
#20 0.39 99.9
#40 23.78 92.9
#60 222.95 33.5
#80 320.36 4.5
#100 330.89 1.3
#200 333.64 0.5
Fractional Components
Cobbles
0.0
Gravel
Coarse
0.0
Fine
0.0
Total
0.0
Sand
Coarse
0.0
Medium
7.1
Fine
92.4
Total
99.5
Fines
Silt Clay Total
0.5
D5
0.1822
D10
0.1980
D15
0.2104
D20
0.2216
D30
0.2427
D40
0.2636
D50
0.2854
D60
0.3091
D80
0.3672
D85
0.3862
D90
0.4089
D95
0.4961
FinenessModulus
1.45
Cu
1.56
Cc
0.96
Tested By: J.SHORES
Client
Project
Project No. Figure
SOUTHERNEARTH
SCIENCES, INC.
Location: N-1(North) Depth: 2.0-3.5' Sample Number: 4 9-13-16 9-14-16 9-16-16
BASKERVILLE DONOVAN
P16-0796
Identification Date Sampled Date Received Date Tested
PE
RC
EN
T F
INE
R
0
10
20
30
40
50
60
70
80
90
100
GRAIN SIZE - mm.
0.0010.010.1110100
% +3"Coarse
% Gravel
Fine Coarse Medium
% Sand
Fine Silt
% Fines
Clay
0.0 0.0 0.0 0.0 7.6 91.8 0.6
6 in. 3 in. 2 in.1½ in.
1 in.¾ in.
½ in.3/8 in.
#4 #10 #20 #30 #40 #60 #100#140
#200
U.S. SIEVE OPENING IN INCHES U.S. STANDARD SIEVE NUMBERS HYDROMETER
Particle Size Distribution Report
LAKE HUNINGTON SEDIMENT SAMPLING
SOUTHERN EARTH SCIENCES, INC.
GRAIN SIZE DISTRIBUTION TEST DATA 9/16/2016
Client: BASKERVILLE DONOVANProject: LAKE HUNINGTON SEDIMENT SAMPLINGProject Number: P16-0796 Location: N-1 (North)Depth: 2.0-3.5' Sample Number: 4Material Description: BROWN / GRAY FINE SANDDate Sampled: 9-13-16 Date Received: 9-14-16 Date Tested: 9-16-16Tested by: J.SHORES
Sieve Test Data
Post #200 Wash Test Weights (grams): Dry Sample and Tare = 373.80Tare Wt. = 0.00Minus #200 from wash = 0.5%
DrySample
and Tare(grams)
Tare(grams)
CumulativePan
Tare Weight(grams)
SieveOpening
Size
CumulativeWeight
Retained(grams)
PercentFiner
375.80 0.00 0.00 .75 0.00 100.0
.375 0.00 100.0
#4 0.00 100.0
#10 0.00 100.0
#20 0.56 99.9
#40 28.53 92.4
#60 240.20 36.1
#80 357.43 4.9
#100 370.68 1.4
#200 373.71 0.6
Fractional Components
Cobbles
0.0
Gravel
Coarse
0.0
Fine
0.0
Total
0.0
Sand
Coarse
0.0
Medium
7.6
Fine
91.8
Total
99.4
Fines
Silt Clay Total
0.6
D5
0.1804
D10
0.1954
D15
0.2071
D20
0.2176
D30
0.2377
D40
0.2581
D50
0.2799
D60
0.3040
D80
0.3651
D85
0.3855
D90
0.4104
D95
0.5100
FinenessModulus
1.43
Cu
1.56
Cc
0.95