Exhibit_P_-_Tierra_Volusia_Geotech_Pond_Area.pdf
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- Solicitation number
- 26-B-51IF
- Issued by
- Volusia County, Florida
About this file
This is a geotechnical engineering report prepared by Tierra for Volusia County, Florida regarding the Tomoka Farms Road Landfill Expansion Plan, specifically documenting soil boring investigations for the Southeast Area pond location. The report presents soil profile data from eight boring locations (B-1 through B-8) conducted between August 28 and September 4, 2024, using Standard Penetration Test (SPT) methodology with an automatic D-25 rig operated by driller R. Shuey. The borings were drilled to depths ranging from approximately 45 to 55 feet and provide detailed stratigraphic information including SPT N-values, soil classification using the Unified Soil Classification System, and laboratory testing results such as liquid limits, plasticity indices, organic content, natural moisture content, and percent passing the #200 sieve. The boring location plan displays the approximate positions of the eight boreholes across the pond area, with coordinates provided for each boring location to establish spatial reference within the project site.
The soil investigation reveals a subsurface profile primarily consisting of gray to brown sand to silty sand (SP/SP-SM) and gray to brown silty sand (SM) in the upper zones, with transitions to darker brown sand and silty sand containing organics (SP/SP-SM/SM) at intermediate depths, and gray to brown to orange silty-clayey sand to clayey sand (SM-SC/SC) at greater depths. Groundwater was not apparent during drilling at most locations due to the drilling method employed. The SPT N-values vary considerably with depth, generally indicating loose to medium dense conditions in granular materials with some zones of stiff to very stiff consistency in finer-grained soils. Laboratory testing shows the soil samples are predominantly non-plastic with varying moisture content and fines content, essential data for designing the geosynthetic liner systems, leachate pond construction, and foundation support requirements for the landfill expansion infrastructure.
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Text version
B-3
B-5
B-6
B-8
B-7
B-4
B-1
B-2
APPROXIMATE LOCATION OF AUGER BORING
APPROXIMATE LOCATION OF SPT BORING
LEGEND
CHECKED BY:
DRAWN BY:
DATE:
APPROVED BY:
SCALE: PROJECT NUMBER:
ENGINEER OF RECORD:
KH
SW
NOV 2024
KHS
NOTED 6511-24-178
VOLUSIA COUNTY, FLORIDA
GEOTECHNICAL ENGINEERING SERVICES
KEVIN H. SCOTT, P.E.
FLORIDA LICENSE NO.:
65514
TOMOKA FARMS ROAD LANDFILL EXPANSION
PLAN SCALE
0 100'
BORING LOCATION PLAN
TIERRA
7351 Temple Terrace Highway Tampa, Florida 33637 Phone: 813-989-1354 Fax: 813-989-1355
SHEET 1
A - WITH WOOD
B - WITH SHELL
SP
N
GROUNDWATER LEVEL ENCOUNTERED DURING INVESTIGATION
SPT N-VALUE IN BLOWS/FOOT FOR 12 INCHES OF
PENETRATION (UNLESS OTHERWISE NOTED)
UNIFIED SOIL CLASSIFICATION SYSTEM (ASTM D 2488) GROUP SYMBOL
AS DETERMINED BY VISUAL REVIEW AND LABORATORY TESTING ON
SELECTED SAMPLES FOR CONFIRMATION OF VISUAL REVIEW.
GRAY TO BROWN SAND TO SAND WITH SILT (SP/SP-SM)
GRAY TO BROWN SILTY SAND (SM)
15 to 30 8 to 15
30 to 50 10 to 30 4 to 10
(BLOWS/FT.)
SPT N-VALUE
(BLOWS/FT.)
SPT N-VALUE
GREATER THAN 30
LESS THAN 4
GREATER THAN 50
LESS THAN 2
VERY LOOSE
HARD
VERY STIFF
STIFF
SILTS AND CLAYS
CONSISTENCY
FIRM
SOFT
VERY SOFT
LOOSE
DENSE
VERY DENSE
4 to 8 2 to 4
RELATIVE DENSITY
GRANULAR MATERIALS-
SAFETY HAMMER
MEDIUM DENSE
AUTOMATIC HAMMER
12 to 24 6 to 12
24 to 40 8 to 24 3 to 8
(BLOWS/FT.)
SPT N-VALUE
(BLOWS/FT.)
SPT N-VALUE
GREATER THAN 24
LESS THAN 3
GREATER THAN 40
LESS THAN 1
3 to 6 1 to 3
LEGEND
DARK BROWN SAND TO SILTY SAND WITH ORGANICS (SP/SP-SM/SM)
GRAY TO BROWN TO ORANGE SILTY-CLAYEY SAND TO CLAYEY
SAND (SM-SC/SC)
GNA GROUNDWATER NOT APPARENT DUE TO DRILLING METHOD USED
WH FELL UNDER WEIGHT OF ROD AND HAMMER
LL
PI
OC
NP
NMC
-200
LIQUID LIMIT (%)
PLASTICITY INDEX (%)
ORGANIC CONTENT (%)
NON PLASTIC
NATURAL MOISTURE CONTENT (%)
PERCENT PASSING #200 SIEVE
C - WITH TRACE ORGANICS
SHELBY TUBE SAMPLE
NR (20-22) NON SAMPLE RECOVERED FROM 20-22 FEET
50 (25-27) 50% SAMPLE RECOVERED FROM 25-27 FEET
100 (40-42) 100% SAMPLE RECOVERED FROM 40-42 FEET
50/4 NUMBER OF BLOWS FOR 4 INCHES OF PENETRATION
CHECKED BY:
DRAWN BY:
DATE:
APPROVED BY:
SCALE: PROJECT NUMBER:
ENGINEER OF RECORD:
KH
SW
NOV 2024
KHS
NOTED 6511-24-178
VOLUSIA COUNTY, FLORIDA
GEOTECHNICAL ENGINEERING SERVICES
KEVIN H. SCOTT, P.E.
FLORIDA LICENSE NO.:
65514
TOMOKA FARMS ROAD LANDFILL EXPANSION
1B
GNAN
BOR # B-3
EASTING 623291
NORTHING 1744591
DATE 8/29/2024
DRILLER R. SHUEY
HAMMER AUTOMATIC
RIG D-25
1B
N
WH
WH
BOR # B-5
EASTING 623344
NORTHING 1744496
DATE 8/30/2024
DRILLER R. SHUEY
HAMMER AUTOMATIC
RIG D-25
D E
P T
H
IN
F E
E T
D E
P T
H
IN
F E
E T
1B
GNAN
WH
BOR # B-6
EASTING 623278
NORTHING 1744427
DATE 8/29/2024
DRILLER R. SHUEY
HAMMER AUTOMATIC
RIG D-25
GNAN
50/6 50/5 50/6
BOR # B-7
EASTING 623190
NORTHING 1744355
DATE 8/28/2024
DRILLER R. SHUEY
HAMMER AUTOMATIC
RIG D-25
1B
GNAN
BOR # B-8
EASTING 623360
NORTHING 1744338
DATE 8/28/2024
DRILLER R. SHUEY
HAMMER AUTOMATIC
RIG D-25
D E
P T
H
IN
F E
E T
D E
P T
H
IN
F E
E T
N
WH
BOR # B-1
EASTING 623196
NORTHING 1744631
DATE 9/4/2024
DRILLER R. SHUEY
HAMMER AUTOMATIC
RIG D-25
GNAN
BOR # B-2
EASTING 623364
NORTHING 1744654
DATE 9/3/2024
DRILLER R. SHUEY
HAMMER AUTOMATIC
RIG D-25
N
BOR # B-4
EASTING 623183
NORTHING 1744506
DATE 9/3/2024
DRILLER R. SHUEY
HAMMER AUTOMATIC
RIG D-25
50 (45-47)
NR (25-27)
100 (25-27)
100 (25-27)
100 (45-47)
50 (20-22)
NR (45-47)
NR (40-42)
NR (40-42)
NMC =
PI =
LL =
-200 = 32
NP
NP
-200 =12 -200 = 12
NMC =
PI =
LL =
-200 = 25
NP
NP
-200 =15
-200 =16
-200 =18
-200 =30
NMC =
PI =
LL =
-200 = 23
NP
NP
NMC =
OC =
-200 =34
NMC =
-200 =
OC =
NMC =
PI =
LL =
-200 = 19
NP
NP
-200 =4
-200 =36
-200 =13
NMC =
PI =
LL =
-200 = 38
NP
NP
-200 =31
-200 =24
-200 = 10
-200 = 42
NMC =
PI =
LL =
-200 = 42
NP
NP
-200 =9
-200 =26
-200 =26
NMC =
OC =
-200 =37
NMC =
OC =
-200 = 9
-200 = 14
-200 = 13
NMC =
PI =
LL =
-200 = 23
NP
NP
ENGINEER OF RECORD:
PROJECT NUMBER:SCALE:
APPROVED BY:
DATE:
DRAWN BY:
CHECKED BY:
SOIL PROFILES
TIERRA
7351 Temple Terrace Highway Tampa, Florida 33637 Phone: 813-989-1354 Fax: 813-989-1355
SHEET 4
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