DRC-2025-000496

Laboratory Report
Energy Solutions Borrow Pit
Prepared for
Neptune and Company, Inc.
Prepared by
DBS&A Soil Testing & Research Laboratory
4400 Alameda Blvd. NE, Suite C
Albuquerque, New Mexico 87113
[phone]
www.dbstephens.com
DB24.1371.00
November 20, 2024
4400 Alameda Boulevard NE, Suite C [phone]
Albuquerque, New Mexico 87113 www.dbstephens.com
November 20, 2024
Daniel G. Levitt
Neptune & Company, Inc.
1435 Garrison Street, Suite 201
Lakewood, CO 80215
720-746-1803, X1012
Re: DBS&A Laboratory Report for PO # 726460, Energy Solutions Borrow Pit
Dear Daniel G. Levitt:
Enclosed is the report for the requested laboratory services. Please review this report and
provide any comments as samples will be held for a maximum of 30 days. After 30 days
samples will be returned or disposed of in an appropriate manner.
All testing results were evaluated subjectively for consistency and reasonableness, and the
results appear to be reasonably representative of the material tested. However, DBS&A does
not assume any responsibility for interpretations or analyses based on the data enclosed, nor
can we guarantee that these data are fully representative of the undisturbed materials at the
field site. We recommend that careful evaluation of these laboratory results be made for your
particular application.
The testing utilized to generate the enclosed report employs methods that are standard for the
industry. The results do not constitute a professional opinion by DBS&A, nor can the results
affect any professional or expert opinions rendered with respect thereto by DBS&A. You have
acknowledged that all the testing undertaken by us, and the report provided, constitutes mere
test results using standardized methods, and cannot be used to disqualify DBS&A from
rendering any professional or expert opinion, having waived any claim of conflict of interest
by DBS&A.
We are pleased to provide this service and look forward to future laboratory testing on other
projects. If you have any questions about the enclosed data, please do not hesitate to call.
Sincerely,
DANIEL B. STEPHENS & ASSOCIATES, INC.
SOIL TESTING & RESEARCH LABORATORY
Thane Morgan William Seward
Laboratory Manager Technical Lead
Summaries
3
Summary of Tests Performed
Saturated
Initial Soil Hydraulic Moisture Particle Specific Air
Laboratory Properties1 Conductivity2 Characteristics3 Size4 Gravity5 Perm- Atterberg Proctor
Sample Number G VM VD CH FH FW HC PP FP DPP RH EP WHC Kunsat DS WS H F C eability Limits Compaction
Lot 8 (MR) (1.99 g/cc) X X X X X X
Lot 8 (Ksat) (1.98 g/cc) X X X
Lot 15 (MR) (1.67 g/cc) X X X X X X X
Lot 15 (Ksat) (1.66 g/cc) X X X
1 G = Gravimetric Moisture Content, VM = Volume Measurement Method, VD = Volume Displacement Method
2 CH = Constant Head Rigid Wall, FH = Falling Head Rigid Wall, FW = Falling Head Rising Tail Flexible Wall
3 HC = Hanging Column, PP = Pressure Plate, FP = Filter Paper, DPP = Dew Point Potentiometer, RH = Relative Humidity Box,
EP = Effective Porosity, WHC = Water Holding Capacity, Kunsat = Calculated Unsaturated Hydraulic Conductivity
4 DS = Dry Sieve, WS = Wet Sieve, H = Hydrometer
5 F = Fine (<4.75mm), C = Coarse (>4.75mm)
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
4
Notes
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
Sample Receipt:
Fifteen samples, each as loose material in two five-gallon buckets sealed with lids, were
received on September 11, 2024. The samples were packaged on pallets and were
received in good order.
Two samples were selected for testing and the remaining samples were placed on hold.
Sample Preparation and Testing Notes:
Particles larger than 1.25” were removed from the bulk material of the selected test
samples in order to achieve target particle diameter to cell size ratios, and the <1.25”
portion was moisture adjusted to a moisture content that would facilitate compaction. Test
samples were prepared by adding the material to 8” diameter test cells in lifts for moisture
retention (MR) testing. Each lift was hand compacted while shaking and tapping to
encourage particle alignment, followed by two sequential slow saturation and draining
stages to further encourage particle alignment and settling of fines. The volume at this
stage was recorded as the initial volume, and the dry density achieved was added to the
sub-sample ID’s. The prepared sub-samples were subjected to saturation and the
hanging column and pressure chamber portions of the moisture retention testing.
Secondary sub-samples were prepared in 12” diameter test rings using the same
methods. The secondary sub-samples were subjected to saturated hydraulic conductivity
(Ksat) testing.
Porosity and oversize correction calculations are based on the use of an assumed specific
gravity value of 2.75.
5
Moisture
Content
Dry
Bulk
Density
Moisture
Content
Dry
Bulk
Density
% of
Target
Density
Dry
Bulk
Density
%
Volume
Change
% of
Initial
Density
Dry
Bulk
Density
%
Volume
Change
% of
Initial
Density
Sample Number (%, g/g) (g/cm
3) (%, g/g) (g/cm
3)(%) (g/cm
3)(%) (%) (g/cm
3)(%) (%)
Lot 8 (MR) (1.99 g/cc) NA NA 3.8 1.99 NA 1.99 --- 100% 2.16 -7.9% 109%
Lot 8 (Ksat) (1.98 g/cc) NA NA 4.0 1.98 NA 1.98 --- 100% NA NA NA
Lot 15 (MR) (1.67 g/cc) NA NA 8.7 1.67 NA 1.67 --- 100% 1.74 -4.0% 104%
Lot 15 (Ksat) (1.66
g/cc)NA NA 8.3 1.66 NA 1.66 --- 100% NA NA NA
1Target Remold Parameters: hand tamping followed by saturation and dewatering
Summary of Sample Preparation/Volume Changes
Target Remold
Parameters1 Actual Remold Data
Volume Change
Post Saturation2
Volume Change
Post Drying Curve3
2Volume Change Post Saturation: Volume change measurements were obtained after saturated hydraulic conductivity testing.
3Volume Change Post Drying Curve: Volume change measurements were obtained throughout hanging column and pressure plate testing. The
'Volume Change Post Drying Curve' values represent the final sample dimensions after the last pressure plate point.
Notes:
"+" indicates sample swelling, "-" indicates sample settling, and "---" indicates no volume change occurred.
NA = Not analyzed
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
6
Summary of Initial Moisture Content, Dry Bulk Density
Wet Bulk Density and Calculated Porosity
Moisture Content
As Received Remolded Dry Bulk Wet Bulk Calculated
Gravimetric Volumetric Gravimetric Volumetric Density Density Porosity
Sample Number (%, g/g)(%, cm3/cm3)(%, g/g)(%, cm3/cm3)(g/cm3)(g/cm3)(%)
Lot 8 (MR) (1.99 g/cc) NA NA 3.8 7.6 1.99 2.07 27.7
Lot 8 (Ksat) (1.98 g/cc) NA NA 4.0 7.9 1.98 2.06 28.1
Lot 15 (MR) (1.67 g/cc) NA NA 8.7 14.5 1.67 1.82 39.2
Lot 15 (Ksat) (1.66 g/cc) NA NA 8.3 13.8 1.66 1.80 39.7
NA = Not analyzed
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
7
Summary of Saturated Hydraulic Conductivity Tests
Oversize
Corrected*
Ksat Ksat Method of Analysis
Sample Number (cm/sec) (cm/sec) Constant Head Falling Head
Lot 8 (Ksat) (1.98 g/cc) 2.1E-02 1.2E-02 X
Lot 15 (Ksat) (1.66 g/cc) 2.5E-03 1.2E-03 X
*The fraction retained on the 3/4" sieve is >30% of the bulk sample mass.
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
8
Summary of Moisture Characteristics
of the Initial Drainage Curve
Pressure Head Moisture Content
Sample Number (-cm water) (%, cm
3/cm3)
Lot 8 (MR) (1.99 g/cc)0 27.8
10 19.0 ‡‡
37 16.6 ‡‡
56 15.2 ‡‡
217 12.9 ‡‡
71794 2.7 ‡‡
188867 1.8 ‡‡
474411 1.4 ‡‡
856739 1.1 ‡‡
Lot 15 (MR) (1.67 g/cc)0 40.1
9 39.4 ‡‡
45 35.6 ‡‡
150 33.6 ‡‡
340 26.7 ‡‡
265454 4.5 ‡‡
401087 3.8 ‡‡
592504 3.2 ‡‡
856739 3.1 ‡‡
‡‡ Volume adjustments are applicable at this matric potential (see data sheet for this sample).
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
9
Summary of Calculated Unsaturated Hydraulic Properties
Oversize Corrected*
Sample Number
α
(cm-1)
N
(dimensionless)
θr
(% vol)
θs
(% vol)
θr
(% vol)
θs
(% vol)
Lot 8 (MR) (1.99 g/cc) 0.3298 1.2125 0.00 27.56 0.00 18.25
Lot 15 (MR) (1.67 g/cc) 0.0092 1.2847 0.00 39.51 0.00 24.15
*The fraction retained on the 3/4" sieve is >30% of the bulk sample mass.
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
10
Initial Properties
11
Data for Initial Moisture Content,
Bulk Density, Porosity, and Percent Saturation
Job Name:Neptune and Company, Inc.
Job Number:DB24.1371.00
Sample Number:Lot 8 (MR) (1.99 g/cc)
Project Name:Energy Solutions Borrow Pit
PO Number:726460
As Received Remolded
Test Date:NA 1-Oct-24
Field weight* of sample (g):8576.20
Tare weight, ring (g):1020.10
Tare weight, pan/plate (g):0.00
Tare weight, other (g):0.00
Dry weight of sample (g):7276.37
Sample volume (cm3):3658.21
Assumed particle density (g/cm3):2.75
Gravimetric Moisture Content (% g/g):3.8
Volumetric Moisture Content (% vol):7.6
Dry bulk density (g/cm3):1.99
Wet bulk density (g/cm3):2.07
Calculated Porosity (% vol):27.7
Percent Saturation:27.6
Laboratory analysis by:F. Cerno
Data entered by:W. Seward
Checked by:J. Hines
Comments:
* Weight including tares
NA = Not applicable
--- = This sample was not remolded
12
Data for Initial Moisture Content,
Bulk Density, Porosity, and Percent Saturation
Job Name:Neptune and Company, Inc.
Job Number:DB24.1371.00
Sample Number:Lot 8 (Ksat) (1.98 g/cc)
Project Name:Energy Solutions Borrow Pit
PO Number:726460
As Received Remolded
Test Date:NA 2-Oct-24
Field weight* of sample (g):30756.50
Tare weight, ring (g):3086.50
Tare weight, pan/plate (g):0.00
Tare weight, other (g):0.00
Dry weight of sample (g):26607.24
Sample volume (cm3):13449.71
Assumed particle density (g/cm3):2.75
Gravimetric Moisture Content (% g/g):4.0
Volumetric Moisture Content (% vol):7.9
Dry bulk density (g/cm3):1.98
Wet bulk density (g/cm3):2.06
Calculated Porosity (% vol):28.1
Percent Saturation:28.2
Laboratory analysis by:F. Cerno
Data entered by:F. Cerno
Checked by:J. Hines
Comments:
* Weight including tares
NA = Not applicable
--- = This sample was not remolded
13
Data for Initial Moisture Content,
Bulk Density, Porosity, and Percent Saturation
Job Name:Neptune and Company, Inc.
Job Number:DB24.1371.00
Sample Number:Lot 15 (MR) (1.67 g/cc)
Project Name:Energy Solutions Borrow Pit
PO Number:726460
As Received Remolded
Test Date:NA 1-Oct-24
Field weight* of sample (g):7714.10
Tare weight, ring (g):1005.00
Tare weight, pan/plate (g):0.00
Tare weight, other (g):0.00
Dry weight of sample (g):6174.48
Sample volume (cm3):3692.63
Assumed particle density (g/cm3):2.75
Gravimetric Moisture Content (% g/g):8.7
Volumetric Moisture Content (% vol):14.5
Dry bulk density (g/cm3):1.67
Wet bulk density (g/cm3):1.82
Calculated Porosity (% vol):39.2
Percent Saturation:36.9
Laboratory analysis by:F. Cerno
Data entered by:F. Cerno
Checked by:J. Hines
Comments:
* Weight including tares
NA = Not applicable
--- = This sample was not remolded
14
Data for Initial Moisture Content,
Bulk Density, Porosity, and Percent Saturation
Job Name:Neptune and Company, Inc.
Job Number:DB24.1371.00
Sample Number:Lot 15 (Ksat) (1.66 g/cc)
Project Name:Energy Solutions Borrow Pit
PO Number:726460
As Received Remolded
Test Date:NA 21-Oct-24
Field weight* of sample (g):28352.03
Tare weight, ring (g):2988.75
Tare weight, pan/plate (g):0.00
Tare weight, other (g):0.00
Dry weight of sample (g):23419.80
Sample volume (cm3):14126.32
Assumed particle density (g/cm3):2.75
Gravimetric Moisture Content (% g/g):8.3
Volumetric Moisture Content (% vol):13.8
Dry bulk density (g/cm3):1.66
Wet bulk density (g/cm3):1.80
Calculated Porosity (% vol):39.7
Percent Saturation:34.6
Laboratory analysis by:F. Cerno
Data entered by:F. Cerno
Checked by:J. Hines
Comments:
* Weight including tares
NA = Not applicable
--- = This sample was not remolded
15
Saturated Hydraulic Conductivity
16
Saturated Hydraulic Conductivity
Constant Head Method
Job Name:Neptune and Company, Inc.Type of water used:TAP
Job Number:DB24.1371.00 Collection vessel tare (g):67.94
Sample Number:Lot 8 (Ksat) (1.98 g/cc)Sample length (cm):18.78
Project Name:Energy Solutions Borrow Pit Sample diameter (cm):30.20
PO Number:726460 Sample x-sectional area (cm2):716.17
Temp Head Q + Tare Q Elapsed Ksat Ksat @ 20°C
Date Time (°C)(cm)(g)(cm3)time (sec)(cm/sec)(cm/sec)
Test # 1:
4-Oct-24 11:16:00 22.5 3 138.28 70.3 30 2.0E-02 1.9E-02
4-Oct-24 11:16:30
Test # 2:
4-Oct-24 11:50:00 22.5 2.4 128.80 60.9 30 2.2E-02 2.1E-02
4-Oct-24 11:50:30
Test # 3:
4-Oct-24 12:50:00 22.5 2 119.67 51.7 30 2.3E-02 2.1E-02
4-Oct-24 12:50:30
Test # 4:
4-Oct-24 13:45:00 22.5 1.3 102.17 34.2 30 2.3E-02 2.2E-02
4-Oct-24 13:45:30
Average Ksat (cm/sec):2.1E-02
Oversize Corrected Ksat (cm/sec):1.2E-02
Comments:
The fraction retained on the 3/4" sieve is >30% of the bulk sample mass.
Laboratory analysis by:F. Cerno
Data entered by:F. Cerno
Checked by:J Hines
0.0014
0.0018
0.0022
0.0026
0.0030
0.0034
0.05 0.07 0.09 0.11 0.13 0.15 0.17
Ve
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(
c
m
/
s
)
Hydraulic Gradient (cm/cm)
Velocity vs. Hydraulic Gradient
17
Saturated Hydraulic Conductivity
Constant Head Method
Job Name:Neptune and Company, Inc.Type of water used:TAP
Job Number:DB24.1371.00 Collection vessel tare (g):67.62
Sample Number:Lot 15 (Ksat) (1.66 g/cc)Sample length (cm):19.61
Project Name:Energy Solutions Borrow Pit Sample diameter (cm):30.29
PO Number:726460 Sample x-sectional area (cm2):720.40
Temp Head Q + Tare Q Elapsed Ksat Ksat @ 20°C
Date Time (°C)(cm)(g)(cm3)time (sec)(cm/sec)(cm/sec)
Test # 1:
31-Oct-24 8:40:00 21.7 1.4 83.03 15.4 120 2.5E-03 2.4E-03
31-Oct-24 8:42:00
Test # 2:
31-Oct-24 10:41:00 21.6 3 84.09 16.5 60 2.5E-03 2.4E-03
31-Oct-24 10:42:00
Test # 3:
31-Oct-24 11:38:00 21.6 2.5 99.13 31.5 120 2.9E-03 2.8E-03
31-Oct-24 11:40:00
Test # 4:
31-Oct-24 12:40:00 21.6 2 90.46 22.8 120 2.6E-03 2.5E-03
31-Oct-24 12:42:00
Average Ksat (cm/sec):2.5E-03
Oversize Corrected Ksat (cm/sec):1.2E-03
Comments:
The fraction retained on the 3/4" sieve is >30% of the bulk sample mass.
Laboratory analysis by:F. Cerno
Data entered by:F. Cerno
Checked by:J Hines
0.0000
0.0001
0.0002
0.0003
0.0004
0.0005
0.05 0.07 0.09 0.11 0.13 0.15 0.17
Ve
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(
c
m
/
s
)
Hydraulic Gradient (cm/cm)
Velocity vs. Hydraulic Gradient
18
Moisture Retention Characteristics
19
Moisture Retention Data
Hanging Column / Pressure Plate
(Soil-Water Characteristic Curve)
Job Name:Neptune and Company, Inc.Dry wt. of sample (g):7276.37
Job Number:DB24.1371.00 Tare wt., ring (g):1020.10
Sample Number:Lot 8 (MR) (1.99 g/cc)Tare wt., screen & clamp (g):87.47
Project Name:Energy Solutions Borrow Pit Initial sample volume (cm3):3658.21
PO Number:726460 Initial dry bulk density (g/cm3):1.99
Assumed particle density (g/cm3):2.75
Initial calculated total porosity (%):27.67
Matric Moisture
Weight*Potential Content †
Date Time (g)(-cm water)(% vol)
Hanging column:3-Oct-24 10:30 9400.00 0 27.77
10-Oct-24 13:00 9023.30 10.0 18.97 ‡‡
17-Oct-24 14:30 8944.10 37.0 16.62 ‡‡
25-Oct-24 14:45 8897.70 56.0 15.24 ‡‡
1-Nov-24 16:00 8817.50 217.0 12.86 ‡‡
Volume Adjusted Data 1
Adjusted
Matric Adjusted % Volume Adjusted Calculated
Potential Volume Change 2 Density Porosity
(-cm water)(cm3)(%)(g/cm3)(%)
Hanging column:0.0 ------------
10.0 3370.74 -7.86%2.16 21.50
37.0 3370.74 -7.86%2.16 21.50
56.0 3370.74 -7.86%2.16 21.50
217.0 3370.74 -7.86%2.16 21.50
Comments:
1
2
*Weight including tares
†Assumed density of water is 1.0 g/cm3
‡‡
Technician Notes:
Laboratory analysis by:F. Cerno/T. Morgan
Data entered by:W. Seward
Checked by:J. Hines
Represents percent volume change from original sample volume. A '+' denotes measured sample swelling, a '-' denotes measured sample
settling, and '---' denotes no volume change occurred.
Applicable if the sample experienced volume changes during testing. ‘Volume Adjusted’ values represent each of the volume change
measurements obtained after saturated hydraulic conductivity testing and throughout hanging column/pressure plate testing. "---" indicates
no volume changes occurred.
Volume adjustments are applicable at this matric potential (see comment #1). Changes in volume, if applicable, are estimated based on
obtainable measurements of changes in sample length and diameter.
20
Moisture Retention Data
Dew Point Potentiometer / Relative Humidity Box
(Soil-Water Characteristic Curve)
Sample Number:Lot 8 (MR) (1.99 g/cc)
Initial sample bulk density (g/cm3):1.99
Fraction of test sample used (<2.00mm fraction) (%):35.81
Dry weight* of dew point potentiometer sample (g):159.51
Tare weight, jar (g):115.70
Weight*Water Potential Moisture Content †
Date Time (g)(-cm water)(% vol)
Dew point potentiometer:9-Oct-24 9:45 161.06 71794 2.74 ‡‡
8-Oct-24 10:05 160.51 188867 1.76 ‡‡
7-Oct-24 9:45 160.29 474411 1.38 ‡‡
Volume Adjusted Data 1
Water Adjusted % Volume Adjusted Adjusted
Potential Volume Change 2 Density Calc. Porosity
(-cm water)(cm3)(%)(g/cm3)(%)
Dew point potentiometer:71794 3370.74 -7.86%2.16 21.50
188867 3370.74 -7.86%2.16 21.50
474411 3370.74 -7.86%2.16 21.50
Dry weight* of relative humidity box sample (g):84.93
Tare weight (g):40.77
Weight*Water Potential Moisture Content †
Date Time (g)(-cm water)(% vol)
Relative humidity box:8-Oct-24 9:00 85.55 856739 1.08 ‡‡
Volume Adjusted Data 1
Water Adjusted % Volume Adjusted Adjusted
Potential Volume Change 2 Density Calc. Porosity
(-cm water)(cm3)(%)(g/cm3)(%)
Relative humidity box:856739 3370.74 -7.86%2.16 21.50
Comments:
1
2
*Weight including tares
†
‡‡
Laboratory analysis by:L. Hooker
Data entered by:W. Seward
Checked by:J. Hines
Volume adjustments are applicable at this matric potential (see comment #1). Changes in volume, if applicable, are estimated based on
obtainable measurements of changes in sample length and diameter.
Applicable if the sample experienced volume changes during testing. ‘Volume Adjusted’ values represent the volume change measurements
obtained after the last hanging column or pressure plate point. "---" indicates no volume changes occurred.
Represents percent volume change from original sample volume. A '+' denotes measured sample swelling, a '-' denotes measured sample
settling, and '---' denotes no volume change occurred.
Adjusted for >2.00mm (#10 sieve) material not used in DPP/RH testing. Assumed moisture content of material >2.00mm is zero, and
assumed density of water is 1.0 g/cm3.
21
Water Retention Data Points
Sample Number: Lot 8 (MR) (1.99 g/cc)
1.E+00
1.E+01
1.E+02
1.E+03
1.E+04
1.E+05
1.E+06
0 10 20 30 40 50 60 70
Pr
e
s
s
u
r
e

H
e
a
d

(
-cm

w
a
t
e
r
)
Moisture Content (%,cm3/cm3)
Hanging column
Pressure plate
Dew point potentiometer
Rh box
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
22
Predicted Water Retention Curve and Data Points
Sample Number: Lot 8 (MR) (1.99 g/cc)
1.E+00
1.E+01
1.E+02
1.E+03
1.E+04
1.E+05
1.E+06
0 10 20 30 40 50 60 70
Pr
e
s
s
u
r
e

H
e
a
d

(
-cm

w
a
t
e
r
)
Moisture Content (%,cm3/cm3)
Hanging column
Pressure plate
Dew point potentiometer
Rh box
Predicted curve
Oversize corrected
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
23
Plot of Relative Hydraulic Conductivity vs Moisture Content
Sample Number: Lot 8 (MR) (1.99 g/cc)
1.E-09
1.E-08
1.E-07
1.E-06
1.E-05
1.E-04
1.E-03
1.E-02
1.E-01
1.E+00
0 10 20 30 40 50 60 70
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H
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Moisture Content (%,cm3/cm3)
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
24
Plot of Hydraulic Conductivity vs Moisture Content
Sample Number: Lot 8 (MR) (1.99 g/cc)
1.E-12
1.E-11
1.E-10
1.E-09
1.E-08
1.E-07
1.E-06
1.E-05
1.E-04
1.E-03
1.E-02
1.E-01
1.E+00
0 10 20 30 40 50 60 70
Hy
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C
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Moisture Content (%,cm3/cm3)
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
25
Plot of Relative Hydraulic Conductivity vs Pressure Head
Sample Number: Lot 8 (MR) (1.99 g/cc)
1.E-09
1.E-08
1.E-07
1.E-06
1.E-05
1.E-04
1.E-03
1.E-02
1.E-01
1.E+00
1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
Re
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Pressure Head (-cm water)
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
26
Plot of Hydraulic Conductivity vs Pressure Head
Sample Number: Lot 8 (MR) (1.99 g/cc)
1.E-12
1.E-11
1.E-10
1.E-09
1.E-08
1.E-07
1.E-06
1.E-05
1.E-04
1.E-03
1.E-02
1.E-01
1.E+00
1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
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27
Oversize Correction Data Sheet
Job Name:Neptune and Company, Inc.
Job Number:DB24.1371.00
Sample Number:Lot 8 (MR) (1.99 g/cc)
Project Name:Energy Solutions Borrow Pit
PO Number:726460
Split (3/4", 3/8", #4):1.25"
Coarse Fraction*Fines Fraction**Composite
Subsample Mass (g):41.36 58.64 100.00
Mass Fraction (%):41.36 58.64 100.00
Initial Sample θ i
Bulk Density (g/cm3):2.75 1.99 2.25
Calculated Porosity (% vol):0.00 27.67 18.32
Volume of Solids (cm3):15.04 21.32 36.36
Volume of Voids (cm3):0.00 8.16 8.16
Total Volume (cm3):15.04 29.48 44.52
Volumetric Fraction (%):33.78 66.22 100.00
Initial Moisture Content (% vol):0.00 7.65 5.06
Saturated Sample θ s
Bulk Density (g/cm3):2.75 1.99 2.25
Calculated Porosity (% vol):0.00 27.67 18.32
Volume of Solids (cm3):15.04 21.32 36.36
Volume of Voids (cm3):0.00 8.16 8.16
Total Volume (cm3):15.04 29.48 44.52
Volumetric Fraction (%):33.78 66.22 100.00
Saturated Moisture Content (% vol):0.00 27.56 18.25
Residual Sample θr
Bulk Density (g/cm3):2.75 2.16 2.37
Calculated Porosity (% vol):0.00 21.50 13.84
Volume of Solids (cm3):15.04 21.32 36.36
Volume of Voids (cm3):0.00 5.84 5.84
Total Volume (cm3):15.04 27.16 42.20
Volumetric Fraction (%):35.64 64.36 100.00
Residual Moisture Content (% vol):0.00 0.00 0.00
Ksat (cm/sec):NM 2.1E-02 1.2E-02
* = Porosity and moisture content of coarse fraction assumed to be zero.
The fraction retained on the 3/4" sieve is >30% of the bulk sample mass.
** = Volume adjusted, if applicable. See notes on Moisture Retention Data pages.
NM = Not measured
Laboratory analysis by:F. Cerno/T. Morgan
Data entered by:W. Seward
Checked by:J. Hines 28
Moisture Retention Data
Hanging Column / Pressure Plate
(Soil-Water Characteristic Curve)
Job Name:Neptune and Company, Inc.Dry wt. of sample (g):6174.48
Job Number:DB24.1371.00 Tare wt., ring (g):1005.00
Sample Number:Lot 15 (MR) (1.67 g/cc)Tare wt., screen & clamp (g):90.29
Project Name:Energy Solutions Borrow Pit Initial sample volume (cm3):3692.63
PO Number:726460 Initial dry bulk density (g/cm3):1.67
Assumed particle density (g/cm3):2.75
Initial calculated total porosity (%):39.20
Matric Moisture
Weight*Potential Content †
Date Time (g)(-cm water)(% vol)
Hanging column:8-Oct-24 12:00 8748.80 0 40.05
15-Oct-24 9:30 8665.50 9.0 39.37 ‡‡
22-Oct-24 16:15 8531.00 45.0 35.58 ‡‡
29-Oct-24 16:15 8459.50 150.0 33.56 ‡‡
Pressure plate:8-Nov-24 17:05 8215.10 340 26.67 ‡‡
Volume Adjusted Data 1
Adjusted
Matric Adjusted % Volume Adjusted Calculated
Potential Volume Change 2 Density Porosity
(-cm water)(cm3)(%)(g/cm3)(%)
Hanging column:0.0 ------------
9.0 3544.74 -4.00%1.74 36.66
45.0 3544.74 -4.00%1.74 36.66
150.0 3544.74 -4.00%1.74 36.66
Pressure plate:340 3544.74 -4.00%1.74 36.66
Comments:
1
2
*Weight including tares
†Assumed density of water is 1.0 g/cm3
‡‡
Technician Notes:
Laboratory analysis by:F. Cerno/T. Morgan
Data entered by:W. Seward
Checked by:J. Hines
Represents percent volume change from original sample volume. A '+' denotes measured sample swelling, a '-' denotes measured sample
settling, and '---' denotes no volume change occurred.
Applicable if the sample experienced volume changes during testing. ‘Volume Adjusted’ values represent each of the volume change
measurements obtained after saturated hydraulic conductivity testing and throughout hanging column/pressure plate testing. "---" indicates
no volume changes occurred.
Volume adjustments are applicable at this matric potential (see comment #1). Changes in volume, if applicable, are estimated based on
obtainable measurements of changes in sample length and diameter.
2929
Moisture Retention Data
Dew Point Potentiometer / Relative Humidity Box
(Soil-Water Characteristic Curve)
Sample Number:Lot 15 (MR) (1.67 g/cc)
Initial sample bulk density (g/cm3):1.67
Fraction of test sample used (<2.00mm fraction) (%):47.07
Dry weight* of dew point potentiometer sample (g):180.36
Tare weight, jar (g):112.99
Weight*Water Potential Moisture Content †
Date Time (g)(-cm water)(% vol)
Dew point potentiometer:9-Oct-24 10:00 184.06 265454 4.50 ‡‡
8-Oct-24 10:35 183.46 401087 3.76 ‡‡
7-Oct-24 9:35 183.00 592504 3.21 ‡‡
Volume Adjusted Data 1
Water Adjusted % Volume Adjusted Adjusted
Potential Volume Change 2 Density Calc. Porosity
(-cm water)(cm3)(%)(g/cm3)(%)
Dew point potentiometer:265454 3544.74 -4.00%1.74 36.66
401087 3544.74 -4.00%1.74 36.66
592504 3544.74 -4.00%1.74 36.66
Dry weight* of relative humidity box sample (g):79.13
Tare weight (g):45.04
Weight*Water Potential Moisture Content †
Date Time (g)(-cm water)(% vol)
Relative humidity box:8-Oct-24 9:00 80.40 856739 3.06 ‡‡
Volume Adjusted Data 1
Water Adjusted % Volume Adjusted Adjusted
Potential Volume Change 2 Density Calc. Porosity
(-cm water)(cm3)(%)(g/cm3)(%)
Relative humidity box:856739 3544.74 -4.00%1.74 36.66
Comments:
1
2
*Weight including tares
†
‡‡
Laboratory analysis by:L. Hooker
Data entered by:W. Seward
Checked by:J. Hines
Volume adjustments are applicable at this matric potential (see comment #1). Changes in volume, if applicable, are estimated based on
obtainable measurements of changes in sample length and diameter.
Applicable if the sample experienced volume changes during testing. ‘Volume Adjusted’ values represent the volume change measurements
obtained after the last hanging column or pressure plate point. "---" indicates no volume changes occurred.
Represents percent volume change from original sample volume. A '+' denotes measured sample swelling, a '-' denotes measured sample
settling, and '---' denotes no volume change occurred.
Adjusted for >2.00mm (#10 sieve) material not used in DPP/RH testing. Assumed moisture content of material >2.00mm is zero, and
assumed density of water is 1.0 g/cm3.
30
Water Retention Data Points
Sample Number: Lot 15 (MR) (1.67 g/cc)
1.E+00
1.E+01
1.E+02
1.E+03
1.E+04
1.E+05
1.E+06
0 10 20 30 40 50 60 70
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Hanging column
Pressure plate
Dew point potentiometer
Rh box
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
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Predicted Water Retention Curve and Data Points
Sample Number: Lot 15 (MR) (1.67 g/cc)
1.E+00
1.E+01
1.E+02
1.E+03
1.E+04
1.E+05
1.E+06
0 10 20 30 40 50 60 70
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Hanging column
Pressure plate
Dew point potentiometer
Rh box
Predicted curve
Oversize corrected
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
32
Plot of Relative Hydraulic Conductivity vs Moisture Content
Sample Number: Lot 15 (MR) (1.67 g/cc)
1.E-09
1.E-08
1.E-07
1.E-06
1.E-05
1.E-04
1.E-03
1.E-02
1.E-01
1.E+00
0 10 20 30 40 50 60 70
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D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
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Plot of Hydraulic Conductivity vs Moisture Content
Sample Number: Lot 15 (MR) (1.67 g/cc)
1.E-12
1.E-11
1.E-10
1.E-09
1.E-08
1.E-07
1.E-06
1.E-05
1.E-04
1.E-03
1.E-02
1.E-01
1.E+00
0 10 20 30 40 50 60 70
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D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
34
Plot of Relative Hydraulic Conductivity vs Pressure Head
Sample Number: Lot 15 (MR) (1.67 g/cc)
1.E-09
1.E-08
1.E-07
1.E-06
1.E-05
1.E-04
1.E-03
1.E-02
1.E-01
1.E+00
1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
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D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
35
Plot of Hydraulic Conductivity vs Pressure Head
Sample Number: Lot 15 (MR) (1.67 g/cc)
1.E-12
1.E-11
1.E-10
1.E-09
1.E-08
1.E-07
1.E-06
1.E-05
1.E-04
1.E-03
1.E-02
1.E-01
1.E+00
1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
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36
Oversize Correction Data Sheet
Job Name:Neptune and Company, Inc.
Job Number:DB24.1371.00
Sample Number:Lot 15 (MR) (1.67 g/cc)
Project Name:Energy Solutions Borrow Pit
PO Number:726460
Split (3/4", 3/8", #4):1.25"
Coarse Fraction*Fines Fraction**Composite
Subsample Mass (g):51.14 48.86 100.00
Mass Fraction (%):51.14 48.86 100.00
Initial Sample θ i
Bulk Density (g/cm3):2.75 1.67 2.09
Calculated Porosity (% vol):0.00 39.20 23.95
Volume of Solids (cm3):18.60 17.77 36.36
Volume of Voids (cm3):0.00 11.45 11.45
Total Volume (cm3):18.60 29.22 47.82
Volumetric Fraction (%):38.89 61.11 100.00
Initial Moisture Content (% vol):0.00 14.48 8.85
Saturated Sample θ s
Bulk Density (g/cm3):2.75 1.67 2.09
Calculated Porosity (% vol):0.00 39.20 23.95
Volume of Solids (cm3):18.60 17.77 36.36
Volume of Voids (cm3):0.00 11.45 11.45
Total Volume (cm3):18.60 29.22 47.82
Volumetric Fraction (%):38.89 61.11 100.00
Saturated Moisture Content (% vol):0.00 39.51 24.15
Residual Sample θr
Bulk Density (g/cm3):2.75 1.74 2.14
Calculated Porosity (% vol):0.00 36.66 22.04
Volume of Solids (cm3):18.60 17.77 36.36
Volume of Voids (cm3):0.00 10.28 10.28
Total Volume (cm3):18.60 28.05 46.65
Volumetric Fraction (%):39.87 60.13 100.00
Residual Moisture Content (% vol):0.00 0.00 0.00
Ksat (cm/sec):NM 2.5E-03 1.2E-03
* = Porosity and moisture content of coarse fraction assumed to be zero.
The fraction retained on the 3/4" sieve is >30% of the bulk sample mass.
** = Volume adjusted, if applicable. See notes on Moisture Retention Data pages.
NM = Not measured
Laboratory analysis by:F. Cerno/T. Morgan
Data entered by:W. Seward
Checked by:J. Hines 37
Laboratory Tests and Methods
38
Dry Bulk Density:ASTM D7263
Moisture Content:ASTM D7263, ASTM D2216
Calculated Porosity:ASTM D7263
Saturated Hydraulic Conductivity:
Falling or Constant Head:
(Rigid Wall)
ASTM D2434
Hanging Column Method: ASTM D6836 (burette, rather than capillary tube, used for water potential monitoring)
Pressure Plate Method: ASTM D6836
Water Potential (Dewpoint
Potentiometer) Method:
ASTM D6836
Relative Humidity (Box)
Method:
Campbell, G. and G. Gee. 1986. Water Potential: Miscellaneous Methods. Chp. 25, pp.
631-632, in A. Klute (ed.), Methods of Soil Analysis. Part 1. American Society of
Agronomy, Madison, WI; Karathanasis & Hajek. 1982. Quantitative Evaluation of Water
Adsorption on Soil Clays. SSA Journal 46:1321-1325
Moisture Retention
Characteristics &
Calculated Unsaturated
Hydraulic Conductivity:
ASTM D6836; van Genuchten, M.T. 1980. A closed-form equation for predicting the
hydraulic conductivity of unsaturated soils. SSSAJ 44:892-898; van Genuchten, M.T., F.J.
Leij, and S.R. Yates. 1991. The RETC code for quantifying the hydraulic functions of
unsaturated soils. Robert S. Kerr Environmental Research Laboratory, Office of Research
and Development, U.S. Environmental Protection Agency, Ada, Oklahoma.
EPA/600/2091/065. December 1991
Coarse Fraction (Gravel)
Correction (calc):
ASTM D4718; Bouwer, H. and Rice, R.C. 1984. Hydraulic Properties of Stony Vadose
Zones. Groundwater Vol. 22, No. 6
Tests and Methods
D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .
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