SW4240702_Design Calculations_20240725

DOLLAR GENERAL — STORE #30370
WELCOME, NC
HYDROLOGIC AND HYDRAULIC ANALYSIS REPORT
BREC
7,11p
11,
•�ti
<zo
Prepared By: Prepared For: Project Site:
BREC, P.A. Teramore Development, LLC TBD Old US Hwy 52
1520 Meadowview Drive 214 Klumac Rd., Ste. 101 Welcome, NC
Wilkesboro, NC 28697 Salisbury, NC 28144
NCBELS Firm #C-3448
[phone]
[e-mail]
2 July 2024
\.\`�N CARP to
o
SEAL
• 035736 • _
%,,T?NC.CN .\' Justin Church, PE
//oil i i i oo Principal Engineer
BREC, P.A. Dollar General— Store #30370 1

Table of Contents
1.0 General Information 4
2.0 Methodology 4
2.1 Rainfall Data 4
2.2 Time of Concentration Calculations 4
2.3 Runoff Coefficient Calculations 5
2.4 Pipe Design 7
2.4.1 Outlet Design 7
2.5 Hydrology Calculations 8
2.5.1 Modified Curve Number Calculations 8
2.6 Sand Filter Design 9
2.6.1 Chamber and Filter Sizing 10
2.6.2 Underdrain Sizing 10
2.6.3 Emergency Spillway Calculations 11
2.6.4 Anti-floatation Calculations 11
3.0 Results 12
Appendix 13
Post-Construction Design Storm (1 inch)
Post-construction 1 Year, 24 Hour
Post-construction 10 Year, 24 Hour
Post-construction 100 Year, 24 Hour
Soils Report
BREC, P.A. Dollar General— Store #30370 2

List of Figures
Figure 1 - System Storage of Design Storm (1 inch) 12
List of Tables
Table 1 - NOAA Rainfall Depths 4
Table 2 - NOAA Rainfall Intensity 4
Table 3 - Post-Construction ToC 5
Table 4 - Curve Numbers 6
Table 5 - Post-Construction Drainage Areas 6
Table 6 - Composite Rational Coefficients 6
Table 7 - Pipe Design Summary 7
Table 8 - Riprap Outlet Stone Sizing 7
Table 9 - Riprap Apron Dimensions 8
Table 10 - Modified SCS Curve Numbers 9
Table 11 - Sand Filter State-Storage 10
Table 12 - Pipe Design Table 13
BREC, P.A. Dollar General— Store #30370 3

1.0 General Information
This document contains hydrologic and hydraulic calculations demonstrating
compliance with post-construction state and local stormwater regulations for the
construction of a 10,732 ft2 Dollar General retail store off Old US Highway 52 in
Welcome, NC. Specifically, regulations for this area require water quality
treatment of the one inch design storm1.
The subject tract is composed of a vacant lot with wooded cover. No jurisdictional
features are present on the site. The site is composed of VaB soils classified as
hydrologic soil group C. Post-construction stormwater requirements will be
satisfied with an above-ground sand filter which NCDEQ approves as a primary
stormwater control measure (SCM).
2.0 Methodology
Four post-construction drainage areas covering the subject tract improvements
were identified. See plansheets for delineation.
2.1 Rainfall Data
Rainfall data was taken from NOAA Atlas 14, Volume 2, Version 3 for Welcome,
NC. Rainfall depths for each design storm are summarized below.
Table 1 - NOAA Rainfall Depths
Storm Rainfall Depth (in)
Design Storm 1.00
1 Year, 24 Hour 2.80
10 Year, 24 Hour 4.88
100 Year, 24 Hour 7.18
Table 2 - NOAA Rainfall Intensity
Storm Rainfall Intensity (in/hr)
1 10 Year, 5 Min 1 6.96 1
2.2 Time of Concentration Calculations
Time of concentration values were calculated using the segmental equations and
guidance found in Part 630, Chapter 15 of the USDA NRCS National Engineering
Handbook.
1 15A NCAC 02H.1001 -Stormwater Management
BREC, P.A. Dollar General— Store #30370 4

Tc = Tsheet + Tscf + Tchannel
0.007(nl)0.8
Tsheet = P2S0.4 , (hours)
Where,
n = Manning's roughness coefficient
l = sheet flow length, (ft)
P2 = 2 year,24 hour rainfall, (in)
S = slope of land surface, (f t/f t)
_ l
Tscf 3,600VSCf' (hours)
l
Tchannel = -,,,-mu V , (hours)
channel
2
1.49r3 /
Vchannel = n (ft/s)
Where,
r = hydraulic radius, (f t)
s = channel slope, (f t/f t)
n = Manning'sn for open channel flow
All areas less than or equal to 0.5 acres were assigned a minimum time of
concentration of 5 minutes.
Table 3 - Post-Construction ToC
Name T ov T ch T c—calc T c—assumed
(min) (min) (min) (min)
POST-CON:1 - - - 5
POST-CON:2 - - - 5
POST-CON:3 - - - 5
POST-CON:4 - - - 5
2.3 Runoff Coefficient Calculations
Composite SCS curve numbers and rational coefficients were calculated as
weighted averages using values summarized below.
BREC, P.A. Dollar General—Store#30370 5

Table 4 -Curve Numbers
GROUND COVER CN"SI C
IMPERVIOUS 98 0.95
GRASS 74 0.20
WOODED 70 0.15
For post-construction drainage areas, the composite curve number is calculated
as:
(Aimppost x CNimp + Agrasspost x CNgrass + Awoodedpost x CNwooded)
CNcomppost
Atotalpost
Table 5 - Post-Construction Drainage Areas
Name HSG Outfall Atotal Aimp A grass A wooded FCNcomppost
(acres) (acres) (acres) (acres)
POST-CON:1+ C I 1 0.25 0.25 0.00 0.00 98.0
POST-CON:2+ C 1 0.16 0.15 0.01 0.00 97.7
POST-CON:3+^ C 1 0.31 0.28 0.03 0.00 95.6
POST-CON:4+ C 1 0.24 0.00 0.24 0.00 74.3
TOTAL 0.95 0.69 0.28 0.00 91.3
SUBTOTAL+ (TO SCM) 0.95 0.69 0.20 0.00 91.3
+ Routed through sand filter prior to discharge.
A Includes areas of assumed off-site 100% BUA.
A composite rational runoff coefficient and associated discharge was also
calculated for each post-construction drainage area for pipe and swale
conveyance sizing.
Aimppost X Cimp •+ Agrasspost X Cimp + Awoodedpost X Cwooded
comp -
Atotalpost
Q = CcomplA
Table 6 - Composite Rational Coefficients
t3
Name Atotal Aimp Agrass Awooded Ccomp Q
(acres) (acres) (acres) (acres) s
POST-CON:1* 0.25 0.25 0.00 0.00 0.95 1.63
POST-CON:2* 0.16 0.15 0.01 0.00 0.94 1.03
POST-CON:3* 0.31 0.28 0.03 0.00 0.87 1.91
POST-CON:4* 0.24 0.00 0.24 0.00 0.21 0.35
* Q10
** Q25
BREC, P.A. Dollar General- Store #30370 6

2.4 Pipe Design
Rational discharges from the delineated drainage areas were used to size pipes
by solving Manning's equation iteratively for the normal depth.
Table 7 - Pipe Design Summary
rs ) rs )
NAME DIA (in) Qmax Qdesign
PIPE-1 18 10.7 4.9
PIPE-2 15 5.4 1.9
PIPE-3 15 5.1 2.9
See Appendix for complete pipe design table.
2.4.1 Outlet Design
Outlet design for pipes discharging to ground surface was taken from Chapter 10
of HEC-14. Riprap D50 was calculated as:
4
n D
D50 = 0.2D (Qdesign)3
desig (
V702.5 \TWl
Where,
D50 = Riprap median diameter (ft)
Qdesign = Design discharge (ft'/s)
D = Pipe diameter (ft)
TW = Tailwater depth (ft)
g = gravitational acceleration (32.2 ft/s2)
Substituting the corresponding pipe diameters and design discharges into the
equation above yields:
Table 8 - Riprap Outlet Stone Sizing
NAME DIA (in) Qdesign (Lv) D50caic (in) D5Odesign (in)
PIPE-1 18 4.9 1.9 5 (CLASS A)
PIPE-3 15 2.9 1.5 5 (CLASS A)
A minimum D50 of 5 inches was chosen for each pipe which corresponds to
NCDOT Class A stone. Given the design D50, the dimensions of the apron were
taken from Table 10.1 equations from HEC 142.
2 http://www.fhwa.dot.gov/engineering/hydraulics/pubs/06086/hec14ch10.cfm
BREC, P.A. Dollar General—Store#30370 7

La = Apron length (ft) = 4D
Da = Apron depth (ft) = 3.5D50
W1 = Upper width (ft) = 3D
W2 = Lower width (ft) = 3D + (2/3) La
Table 9 - Riprap Apron Dimensions
NAME DIA (in) La (ft) Da (ft) W1 (ft) W2 (ft)
PIPE-1 18 6 1.5 5 9
PIPE-3 15 5 1.5 4 7
2.5 Hydrology Calculations
The water quality volume (WQV) required to be treated from the design storm
(1 inch) was calculated using the Schueler method outlined in the NCDEQ
Stormwater Design Manual3. The Schueler method utilizes the following
equations:
Rv = 0.05 + 0.91A
WQV = 363ORDR„A
Where IA is the impervious fraction of the drainage area, Rv is a runoff coefficient,
RD is the rainfall depth, A is the drainage area, and WQv is the runoff volume. The
following parameters are used for the drainage routed to the sand filter.
la = 0.72
R„ = 0.05 + 0.9(0.72) = 0.70
RD = 1.0 inch
A = 0.95 acres
WQV = 3,630(1.0)(0.70)(0.95) = 2,414 ft3
WQVadj = 0.75WQv = 0.75(2,414) = 1,810 ft3
2.5.1 Modified Curve Number Calculations
To route the WQV through the sand filter, it is necessary to calculate a modified
SCS curve number to avoid underrepresenting the design storm. The modified
curve number is calculated as follows:
CN = 1000/ [10 + 5RD + 10Rv — 10IR� + 1.25R„RD]
3 https://deq.nc.gov/sw-bmp-manual
BREC, P.A. Dollar General—Store#30370 8

The modified curve numbers were used to route the first flush using an SCS 6 hour
balanced storm distribution. The remaining design storms were routed with
standard curve numbers and an SCS type II 24 hour storm distribution.
Table 10 - Modified SCS Curve Numbers
Name Rv CNmod
POST-CON:1 0.95 99.57
POST-CON:2 0.94 99.46
POST-CON:3 0.86 98.71
POST-CON:4 0.06 78.36
2.6 Sand Filter Design
The combined area of the sediment chamber and sand chamber is determined
from the relationship of the max water depth observed during the water quality
event, Hmax, and the adjusted water quality volume.
Hmax = 1.0ft
A WQVadj — 1,810 — 1,810 ft2
mi —n — Hmax 1.0
Aprovided = 1,870 f t2 > Amin
Vmin = WQVadj = 1,810 ft3
Vtotai = 2,439 ft3
The stone weir between the two chambers creates a minor volume reduction.
Because the weir placement creates two equal sized chambers, the volume loss
created by the permeable stone barrier is evenly distributed between each
chamber.
Vweir = AweirLweir(1 — VOIDSfraction) _ (6 f t2)(18 f t)(1 — 0.4) = 64 f t3
Vprovided = Vtotai — Vweir = 2,439 ft3 — 64 f t3 = 2,374 ft3 > Vmin
BREC, P.A. Dollar General—Store#30370 9

Table 11 -Sand Filter State-Storage
Stage Elevation Area Sediment Vol Filter Vol Total Vol
(ft) (ft) (ft2) (ft3) (ft3) (ft3)
0.0 843.75 1,870+ 0 0 0
1 .0 844.75 3,007 1 ,219 1,219 2,439"
2.0 845.75 4,200 3,021 3,021 6,042
3.0 846.75 5,450 5,434 5,434 10,867
4.0 I 847.75 I 6,756 I 8,485 I 8,485 I 16,970
+ Aprovided
n
Uprovided
2.6.1 Chamber and Filter Sizing
The sand filter sediment chamber and sand chamber are similarly sized to satisfy
MDC 2. Given the sand chamber area, the sand media area, Asand, was selected
as 380 f t2. This dimension creates an easily installable geometric shape for the
sand media while preventing the sand media from being installed adjacent to the
toe of slope grading.
Discharge through the sand media is governed by Darcy's Law.
Asandk(hf + df)
Qsand = df
Where,
Asand = Sand media surface area (f t2) = 380 f t2
k = Sand media permeability (ft/day) = 4.0 ft/day
df = Sand media depth (ft) = 1.5 ft
hf = Height of water above sand media
2.6.2 Underdrain Sizing
Drawdown time is calculated as:
WQVdf 2,414(1.5)
t = _ = 28.6 hours
k(ha + df)Asand 4.0(0.5 + 1.5)380
Discharge rate is calculated as:
WQV 2,414 ft3
Qunderdrain = _ = 0.02
t 28.6 s
After applying a safety factor of 10,
BREC, P.A. Dollar General— Store #30370 10

ft3
Qsand = 10Qunderdrain = 0.20
S
The diameter of a single pipe is calculated as:
3
CD = 16 nQsandl8
1
Where,
n = Manning's roughness for pipe
S = pipe slope
3
0.011(0.2) s
D = 16 = 4.6 inches
0.005
Per Table 1 of Section A-5 of the NCDEQ Stormwater Design Manual, use (2) 4
inch pipes.
2.6.3 Emergency Spillway Calculations
Modeling shows the emergency spillway is not activated during the 100 year, 24
hour storm. The emergency spillway elevation is designed to provide 1 ft of
freeboard when activated. With those constraints, the maximum head for flow over
the emergency spillway is 0.25 ft.
3 3 ft3
Qspillway = CLHz = 3.33 x 10 x 0.25 = 4.2
s
The outlet channel is armored with an HDPE scour mat installed over sod with the
following performance metrics:
ft
Vpermissible = 197
Qspillway ft
Vcalculated = = 1.6 — < Vpermissible
Aspillway@0.25'
2.6.4 Anti-floatation Calculations
BREC, P.A. Dollar General—Store#30370 11

The outlet structure is a 3 ft x 3 ft x 6 ft precast concrete box with 6 in side and
bottom wall thicknesses. Including concrete and reinforcing steel, the structure
has an empty mass of Moutietempty = 6,178 lb.
Assuming the total height of the box is exposed to buoyant forces, the volume of
water displaced by the box is calculated from the outside dimensions.
Vboxwater = 4.0 ftx4.0 ftx6.5 ft = 104 ft3
The buoyant force on the box is defined from the hydraulic forces acting
Fb = VboxwaterPW = 104 f t3 x 62.4 lb
= 6,490 lb
Additional mass was added to the outlet structure by pouring a 6 in concrete slab
over the bottom.
Moutlettotat = 6,178 lb + (3 ft)(3 ft)(0.5 ft) (150 fb3) = 6,853 lb > Fb
3.0 Results
The design storm (1 inch) is routed through the sand filter and reaches a max
storage depth of 0.84 ft which does not exceed the design Hmax = 1.0 ft. The
water quality volume is discharged over a period of 30 hours.
1953
1736
1,9
651
21)
Figure 1 -System Storage of Design Storm (1 inch)
BREC, P.A. Dollar General—Store#30370 12

Appendix
Table 12 - Pipe Design Table
DIA Q MAX Q DESIGN
NAME (IN) INV UP INV DOWN LEN (FT) S (FT/FT) n (CFS) (CFS)
PIPE-1 18 840.75 840.50 28.1 0.009 0.012 10.7 4.91
PIPE-2 15 845.00 844.60 67.5 0.006 0.012 5.4 1.91
PIPE-3 15 844.50 I 843.75 142.7 0.005 0.012 5.1 2.93
BREC, P.A. Dollar General- Store #30370 13

Post-Construction Design Storm (1 inch)
BREC, P.A. Dollar General— Store#30370 14

Project Description
File Name POST-CON-ROUTINGBAIANCED 07012024.SPF
Description Folders\PROJECIS\BREC\PROJECLS\316 1ERAMDRE D
EVEIOPMEN1\3161322023 DOLLAR GENERAL WELCO
Project Options
FlowUnits CFS
Elevation Type Elevation
Hydrology1VEthod SCS IR 55
Time of Concentration(IOC)NEthod User-Defined
Link RoutinglVEthod Hydrodynamic
Enable Overflow Ponding at Nodes YES
Skip Steady State Analysis lime Periods NO
Analysis Options
Start Analysis On 00:00:00 0:00:00
End Analysis On 00:00:00 0:00:00
Start Reporting On 00:00:00 0:00:00
Antecedent DryDays 0 days
Runoff(Dry Weather)Time Step 0 01:00:00 days hh:mm:ss
Runoff(Wet Weather)Time Step 0 00:05:00 days hh:mm:ss
Reporting Time Step 0 00:00:05 days hh:mm:ss
Routing Time Step 5 seconds
Number of Elements
Qty
Rain Gages 1
Subbasins 4
Nodes 4
Junctions 2
Outfalls 1
Flow Diversions 0
Inlets 0
Storage Nodes 1
links 6
Channels 0
Pipes 2
Pumps 0
Orifices 2
Weirs 1
Outlets 1
Pollutants 0
Land Us es 0
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin Summary
SN Subbasin Area PeakRate Weighted Total Total Total Peak Time of
ID Factor Curve Rainfall Runoff Runoff Runoff Concentration
Number Volume
(ac) (in) (m) (ac-in) (cfs) (days hh:mm:ss)
1{POST-CON}.POST-CON:1 0.25 484.00 99.57 1.00 0.95 0.24 0.52 0 00:05:00
2{POST-CON}.POST-CON:2 0.16 484.00 99.46 1.00 0.93 0.15 0.33 0 00:05:00
3{POST-CON}.POST-CON:3 0.31 484.00 98.71 1.00 0.86 0.27 0.62 0 00:05:00
4{POST-CON}.POST-CON:4 0.24 484.00 78.36 1.00 0.06 0.01 0.02 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Node Summary
SN Element Element Invert Ground/Rim Initial Surcharge Ponded Peak IvfaxHGL Ma
ID Type Elevation (Max) Water Elevation Area Inflow Elevation Surcharg
Elevation Elevation Attained Dept
Attain
(fl) (ft) (fl) (fl) (IF) (cfh) (6) (I
1 SCM-RISER Junction 840.75 848.00 840.75 0.00 0.00 0.03 840.81 0.0
2 SITE-JUNCTION(VIRTUAL) Junction 840.63 848.00 840.63 0.00 0.00 0.03 840.68 0.0
3 OUIFAII.1 Outfafl 840.50 0.03 840.56
4 SAND-FILTER Storage Node 843.75 848.00 843.75 0.00 1.47 844.59
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

link Summary
SNElement Element From To(Outlet) Length Inlet Outlet Average Diameter or Mrnning's Peak Design Flow
ID Type (Inlet) Node Invert Invert Slope Height Roughness Flow Capacity
Node Elevation Elevation
(ft) (ft) (ft) (%) (in) (cfs) (cif)
1 OCS-BARREL Pipe SCM-RISER SIIQJUNCTION(VIRTUAL) 14.00 840.75 840.63 0.8900 18.000 0.0120 0.03 10.75
2 S1TE-LINK(VIRTUAL) Pipe SITE-JUNCTION(VIRTUAL) OUIFALL1 14.00 840.63 840.50 0.8900 18.000 0.0120 0.03 10.75
3 OCS-RIM Orifice SAND-FILTER SCM-RISER 843.75 840.75 36.000 0.00
4 ORIFICE-1 Orifice SAND-FILTER SCM-RISER 843.75 840.75 3.000 0.00
5 SAND-MEDIA Outlet SAND-FILTER SCM-RISER 843.75 840.75 0.03
6 FM-SPILLWAY Weir SAND-FILTER SHE-JUNCTION(VIRTUAL) 843.75 840.63 0.00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin Hydrology
Subbasin:{POST-CON}.POST-CON:1
Input Data
Area(ac) 0.25
Peak Rate Factor 484
Weighted Curve Number 99.57
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.25 - 99.57
Composite Area&Weighted CN 0.25 99.57
Subbasin Runoff Results
Total Rainfall(in) 1
Total Runoff(in) 0.95
Peak l unoff(cfs) 0.52
Weighted Curve Number 99.57
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:1
Rainfall Intensity Graph
2.3
2.2-
2.1-
2-
1.9-
1.8-
1.7- —
1.6-
1.5-
1.4-
t 1.3
C
m 1
0.9-
0.8-
0.7-
0.5-
0.4-
0.3-
0.2-
0.1-
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
0.54
0.52-
0.5-
0.48- -
0.46-
0.44- - - - - -
0.42- - - - - - -
0.4-
0.38-
0.36-
0.34-
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:2
Input Data
Area(ac) 0.16
Peak Rate Factor 484
Weighted Curve Number 99.46
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.16 - 99.46
Composite Area&Weighted CN 0.16 99.46
Subbasin Runoff Results
Total Rainfall(in) 1
Total Runoff(in) 0.93
Peak Runoff(cfs) 0.33
Weighted Curve Number 99.46
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:2
Rainfall Intensity Graph
2.4
2.3-
2.2-
2.1-
2-
1.9-
1.8-
1.7-
1.6-
1.5-
1.4-
1.3-
0 1.2-
1.1-
CC 1-
0.9-
0.8-
0.7-
0.6-
0.5-
0.4-
0.3-
0.2-
0.1-
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
0.36
0.34-
0.32-
0.3-
0.28-
0.26-
0.24-
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:3
Input Data
Area(ac) 0.31
Peak Rate Factor 484
Weighted Curve Number 98.71
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.31 - 98.71
Composite Area&Weighted CN 0.31 98.71
Subbasin Runoff Results
Total Rainfall(in) 1
Total Runoff(in) 0.86
Peak Runoff(cfs) 0.62
Weighted Curve Number 98.71
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:3
Rainfall Intensity Graph
2.4
2.3-
2.2-
2.1-
2-
1.9-
1.8-
1.7-
1.6-
1.5-
1.4-
1.3-
0 1.2-
1.1-
CC 1-
0.9-
0.8-
0.7-
0.6-
0.5-
0.4-
0.3-
0.2-
0.1-
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
0.7
0.65-
0.6-
0.55-
0.5-
0.45-
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:4
Input Data
Area(ac) 0.24
Peak Rate Factor 484
Weighted Curve Number 78.36
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.24 - 78.36
Composite Area&Weighted CN 0.24 78.36
Subbasin Runoff Results
Total Rainfall(in) 1
Total Runoff(in) 0.06
Peak Runoff(cfs) 0.02
Weighted Curve Number 78.36
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:4
Rainfall Intensity Graph
2.4
2.3-
2.2-
2.1-
2-
1.9-
1.8-
1.7-
1.6-
1.5-
1.4-
1.3-
0 1.2-
1.1-
CC 1-
0.9-
0.8-
0.7-
0.6-
0.5-
0.4-
0.3-
0.2-
0.1-
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
0.019
0.018-
0.017-
0.016-
0.015-
0.014- - - -
0.013-
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Junction Input
SN Element Invert Ground/Rim Ground/Rim Initial Initial Surcharge Surcharge Ponded Mnimum
ID Elevation (Max) (Max) Water Water Elevation Depth Area Pipe
Elevation Offset Elevation Depth Cover
(ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft') (in)
1 SCM-RISFR 840.75 848.00 7.25 840.75 0.00 0.00 -848.00 0.00 0.00
2 Sr1E JUNCIION(v1RIUAL) 840.63 848.00 7.38 840.63 0.00 0.00 -848.00 0.00 0.00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Junction Results
SN Element Peak Peak IvhxHGL MaxHGL Max Mn Average HGL Average HGL Time
ID Inflow Lateral Elevation Depth Surcharge Freeboard Elevation Depth MaxH
Inflow Attained Attained Depth Attained Attained Attained Occurren
Attained
(cfs) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (days hh:nr
1 SCM-RISFR 0.03 0.00 840.81 0.06 0.00 7.19 840.78 0.03 0 06:
2 STI&JUNC 1ON(V1R'IUAL) 0.03 0.00 840.68 0.05 0.00 7.32 840.66 0.03 0 06:
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Pipe Input
SN Element Length Inlet Inlet Outlet Outlet Total Average Pipe Pipe Pipe Manning
ID Invert Invert Invert Invert Drop Slope Shape Diameter or Width Roughnes
Elevation Offset Elevation Offset Height
(ft) (ft) (ft) (ft) (ft) (8) (%) (in) (in)
1 OCS-BARREL. 14.00 840.75 0.00 840.63 0.00 0.13 0.8900 CIRCULAR 18.000 18.000 0.012
2 SITE-LINK(VIRTUAL) 14.00 840.63 0.00 840.50 0.00 0.13 0.8900 CIRCULAR 18.000 18.000 0.012
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Pipe Results
SNElement Peak Time of Design Flow PeakFlow/ PeakFlow Travel PeakFlow PeakFlow Total Time
ID Flow PeakFlow Capacity Design Flow Velocity Time Depth Depth/ Surcharged
Occurrence Ratio Total Depth
Ratio
(cfs) (days hh:mm) (cfs) (ft/sec) (min) (ft) (min)
1 OCS-BARREL 0.03 0 06:01 10.75 0.00 1.20 0.19 0.06 0.04 0.00
2 SIE.L1NK(VIRTUAL) 0.03 0 06:02 10.75 0.00 1.24 0.19 0.06 0.04 0.00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Storage Nodes
Storage Node:SAND-FILII t
Input Data
Invert Elevation(It) 843.75
Max(Rim)Elevation(ft) 848.00
Max(Rim)Offset OD 4.25
Initial Water Elevation(ft) 843.75
Initial Water Depth(ft) 0.00
Ponded Area(fP) 0.00
Evaporation Loss 0.00
Storage Area Volume Curves
Storage Curve:SAND-FILTER
Stage Storage Storage
Area Volume
(ft) (IP) (fts)
0 1870 0
1 3007 2438.5
2 4200 6042
3 5450 10867
4 6756 16970
4.25 7091 18700.88
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Storage Area Volume Curves
Storage Volume mn
o
2.7
�~1 4-
0.7
0.6
0.5
This document was created by an application that isn't licensed to use novaPDF.

Storage Node:SAND-FILIER(continued)
Outflow Weirs
SN Element Weir Flap Crest Crest Length Weir Total Dischar
ID Type Gate Elevation Offset Height Coefficie
(ft) (ft) (ft) (ft)
1 ElVI-SPIILWAY Trapezoidal No 846.75 3.00 10.00 1.25 3'
Outflow Orifices
SN Element Orifice Orifice Flap Circular Rectangular Rectangular Orifi
ID Type Shape Gate Orifice Orifice Orifice Inv(
Diameter Height Width Elevatii
(in) (m) (in)
1 OCS-RIM Bottom Rectangular No 36.00 36.00 846.:
2 ORIFICE-1 Side CIRCULAR No 3.00 844.'
Output Summary Results
Peak Inflow(cfs) 1.47
Peak Lateral Inflow(cfs) 1.47
Peak Outflow(cfs) 0.03
Peak Fxfiltration How Rate(cftn) 0
MaxHGLElevation Attained(ft) 844.59
Max HGLDepth Attained(ft) 0.84
Average HGLIIevation?ttained(ft) 844.01
Average HGLDepth Attained(ft) 0.26
Time oflvhxHGLOccurrence(days hh:mm) 0 06:01
Total Fxflltration Volume(1000-ft') 0
Total Hooded Volume(ac-in) 0
Total Time Hooded(min) 0
Total Retention lime(sec) 0
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Post-construction 1 Year, 24 Hour
BREC, P.A. Dollar General— Store#30370 15

Project Description
File Name POST-CON-ROUBNG07012024.SPF
Description Folders\PROJECTS\BREC\PROJECTS\316 TFRAMDRE DEIELOPME
NI\3161322023 DOLLAR GENERAL WELCOME NC\PRODUCTION
Project Options
FlowUnits CFS
Elevation Type Elevation
HydrologyMethod SCS TR 55
Time of Concentration(TOC)Ivithod User-Defined
Link Routing IVEthod Hydrodynamic
Enable Overflow Ponding at Nodes YES
Skip Steady State Analysis lime Periods NO
Analysis Options
Start Analysis On 00:00:00 0:00:00
End Analysis On 00:00:00 0:00:00
Start Reporting On 00:00:00 0:00:00
AntecedentDryDays 0 days
Runoff(ay Weather)Time Step 0 01:00:00 days hh:mm:ss
Runoff(Wet Weather)Time Step 0 00:05:00 days hh:mm:ss
Reporting Time Step 0 00:00:05 days hh:mm:ss
Routing Time Step 5 seconds
Number of Elements
Q
Rain Gages 1
Subbasins 4
Nodes 4
Junctions 2
Outfalls 1
Flow Diversions 0
Inlets 0
Storage Nodes 1
Links 6
Channels 0
Pipes 2
Pumps 0
Orifices 2
Weirs 1
Outlets 1
Pollutants 0
Land Uses 0
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin Summary
SN Subbasin Area PeakRate Weighted Total Total Total Peak Time of
ID Factor Curve Rainfall Runoff Runoff Runoff Concentration
Number Volume
(ac) (in) (in) (ac-in) (cfs) (days hh:mm:ss)
1{POST-CON}.POST-CON:1 0.25 484.00 98.00 2.80 2.57 0.64 0.91 0 00:05:00
2{POST-CON}.POST-CON:2 0.16 484.00 97.70 2.80 2.53 0.41 0.58 0 00:05:00
3{POST-CON}.POST-CON:3 0.31 484.00 95.60 2.80 2.31 0.72 1.06 0 00:05:00
4{POST-CON}.POST-CON:4 0.24 484.00 74.30 2.80 0.80 0.19 0.29 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Node Summary
SN Element Element Invert Ground/Rim Initial Surcharge Ponded Peak IvfaxHGL Ma
ID Type Elevation (Max) Water Elevation Area Inflow Elevation Surcharg
Elevation Elevation Attained Dept
Attain
(0) (6) (fl) (fl) (IF) (cfh) (6) (f
1 SCM-RISER Junction 840.75 848.00 840.75 0.00 0.00 0.17 840.90 0.0
2 SITE-JUNCTION(VIRTUAL) Junction 840.63 848.00 840.63 0.00 0.00 0.17 840.77 0.0
3 OUIFAII.1 Outfafl 840.50 0.17 840.63
4 SAND-FILTER Storage Node 843.75 848.00 843.75 0.00 2.83 845.20
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

link Summary
SNElement Element From To(Outlet) Length Inlet Outlet Average Diameter or Mrnning's Peak Design Flow
ID Type (Inlet) Node Invert Invert Slope Height Roughness Flow Capacity
Node Elevation Elevation
(ft) (ft) (ft) (%) (in) (cfs) (cif)
1 OCS-BARREL Pipe SCM-RISER SIIQJUNCTION(VIRTUAL) 14.00 840.75 840.63 0.8900 18.000 0.0120 0.17 10.75
2 S1TE-LINK(VIRTUAL) Pipe SITE-JUNCTION(VIRTUAL) OUIFALL1 14.00 840.63 840.50 0.8900 18.000 0.0120 0.17 10.75
3 OCS-RIM Orifice SAND-FILTER SCM-RISER 843.75 840.75 36.000 0.00
4 ORIFICE-1 Orifice SAND-FILTER SCM-RISER 843.75 840.75 3.000 0.14
5 SAND-MEDIA Outlet SAND-FILTER SCM-RISER 843.75 840.75 0.03
6 FM-SPILLWAY Weir SAND-FILTER SHE-JUNCTION(VIRTUAL) 843.75 840.63 0.00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin Hydrology
Subbasin:{POST-CON}.POST-CON:1
Input Data
Area(ac) 0.25
Peak Rate Factor 484
Weighted Curve Number 98
Rain Gage II) WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.25 - 98
Composite Area&Weighted CN 0.25 98
Subbasin Runoff Results
Total Rainfall(in) 2.8
Total Runoff(in) 2.57
PeakRunoff(cfs) 0.91
Weighted Curve Number 98
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:1
Rainfall Intensity Graph
4
3.8-
3.6-
3.4-
3.2- — —
3- —
—
2.8-
2.6-
2.4-
2-
m
1.8-
1.6-
1.4-
1.2-
0.8-
0.6-
0.4-
0.2-
0 2 4 8 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
1
0.95-
0.9-
0.85-
0.8-
0.75-
0.7-
0.65-
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:2
Input Data
Area(ac) 0.16
Peak Rate Factor 484
Weighted Curve Number 97.7
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.16 - 97.7
Composite Area&Weighted CN 0.16 97.7
Subbasin Runoff Results
Total Rainfall(in) 2.8
Total Runoff(in) 2.53
Peak Runoff(cfs) 0.58
Weighted Curve Number 97.7
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:2
Rainfall Intensity Graph
4.2
4
3.8
3.6
3.4
3.2
3
2.8
2.6
t 2.4
c -
2.2
m 2
1.8
1.6
1.2
1-
0.8
0.6
0.2
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
0.62
0.6
0.58
0.56
0.54
0.52
0.5
0.48
0.46
0.44
0.42
0.4
fl
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:3
Input Data
Area(ac) 0.31
Peak Rate Factor 484
Weighted Curve Number 95.6
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.31 - 95.6
Composite Area&Weighted CN 0.31 95.6
Subbasin Runoff Results
Total Rainfall(in) 2.8
Total Runoff(in) 2.31
Peak Runoff(cfs) 1.06
Weighted Curve Number 95.6
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:3
Rainfall Intensity Graph
4.2
4
3.8
3.6
3.4
3.2
3
2.8
2.6
t 2.4
c -
2.2
m 2
1.8
1.6
1.2
1-
0.8
0.6
0.2
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
1.15
1.1
1.05
1
0.95
0.9
0.85
0.8
0.75
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:4
Input Data
Area(ac) 0.24
Peak Rate Factor 484
Weighted Curve Number 74.3
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.24 - 74.3
Composite Area&Weighted CN 0.24 74.3
Subbasin Runoff Results
Total Rainfall(in) 2.8
Total Runoff(in) 0.8
Peak Runoff(cfs) 0.29
Weighted Curve Number 74.3
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:4
Rainfall Intensity Graph
4.2
4
3.8
3.6
3.4
3.2
3
2.8
2.6
t 2.4
c -
2.2
m 2
1.8
1.6
1.2
1-
0.8
0.6
0.2
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
0.31
0.3
0.29
0.28
0.27
0.26 -
0.25
0.24
0.23
0.22
0.21
0.2
fl
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Junction Input
SN Element Invert Ground/Rim Ground/Rim Initial Initial Surcharge Surcharge Ponded Mnimum
ID Elevation (Max) (Max) Water Water Elevation Depth Area Pipe
Elevation Offset Elevation Depth Cover
(ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft') (in)
1 SCM-RISFR 840.75 848.00 7.25 840.75 0.00 0.00 -848.00 0.00 0.00
2 Sr1E JUNCIION(v1RIUAL) 840.63 848.00 7.38 840.63 0.00 0.00 -848.00 0.00 0.00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Junction Results
SN Element Peak Peak IvhxHGL MaxHGL Max Mn Average HGL Average HGL Time
ID Inflow Lateral Elevation Depth Surcharge Freeboard Elevation Depth MaxH
Inflow Attained Attained Depth Attained Attained Attained Occurren
Attained
(cfs) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (days hh:m
1 SCM-RISFR 0.17 0.00 840.90 0.15 0.00 7.10 840.81 0.06 0 12:
2 SII&JUNCIION(VIRIUAL) 0.17 0.00 840.77 0.14 0.00 7.23 840.69 0.06 0 12:
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Pipe Input
SN Element Length Inlet Inlet Outlet Outlet Total Average Pipe Pipe Pipe Manning
ID Invert Invert Invert Invert Drop Slope Shape Diameter or Width Roughnes
Elevation Offset Elevation Offset Height
(ft) (ft) (ft) (ft) (ft) (8) (%) (in) (in)
1 OCS-BARREL. 14.00 840.75 0.00 840.63 0.00 0.13 0.8900 CIRCULAR 18.000 18.000 0.012
2 SITE-LINK(VIRTUAL) 14.00 840.63 0.00 840.50 0.00 0.13 0.8900 CIRCULAR 18.000 18.000 0.012
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Pipe Results
SNElement Peak Time of Design Flow PeakFlow/ PeakFlow Travel PeakFlow PeakFlow Total Time
ID Flow PeakFlow Capacity Design Flow Velocity Time Depth Depth/ Surcharged
Occurrence Ratio Total Depth
Ratio
(cfs) (days hh:mm) (cfs) (ft/sec) (min) (ft) (min)
1 OCS-BARREL 0.17 0 12:48 10.75 0.02 1.87 0.12 0.15 0.10 0.00
2 SIE.L1NK(VIRTUAL) 0.17 0 12:49 10.75 0.02 2.04 0.11 0.14 0.09 0.00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Storage Nodes
Storage Node:SAND-FILII t
Input Data
Invert Elevation(It) 843.75
Max(Rim)Elevation(ft) 848.00
Max(Rim)Offset OD 4.25
Initial Water Elevation(ft) 843.75
Initial Water Depth(ft) 0.00
Ponded Area(fP) 0.00
Evaporation Loss 0.00
Storage Area Volume Curves
Storage Curve:SAND-FILTER
Stage Storage Storage
Area Volume
(ft) (IP) (fts)
0 1870 0
1 3007 2438.5
2 4200 6042
3 5450 10867
4 6756 16970
4.25 7091 18700.88
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Storage Area Volume Curves
Storage Volume mn
o
2.7
�~1 4-
0.7
0.6
0.5
This document was created by an application that isn't licensed to use novaPDF.

Storage Node:SAND-FILIER(continued)
Outflow Weirs
SN Element Weir Flap Crest Crest Length Weir Total Dischar
ID Type Gate Elevation Offset Height Coefficie
(ft) (ft) (ft) (ft)
1 ElVI-SPIILWAY Trapezoidal No 846.75 3.00 10.00 1.25 3'
Outflow Orifices
SN Element Orifice Orifice Flap Circular Rectangular Rectangular Orifi
ID Type Shape Gate Orifice Orifice Orifice Inv(
Diameter Height Width Elevatii
(in) (m) (in)
1 OCS-RIM Bottom Rectangular No 36.00 36.00 846.:
2 ORIFICE-1 Side CIRCULAR No 3.00 844.'
Output Summary Results
Peak Inflow(cfs) 2.83
Peak Lateral Inflow(cfs) 2.83
Peak Outflow(cfs) 0.17
Peak Fxfiltration How Rate(cftn) 0
MaxHGLElevation Attained(ft) 845.2
Max HGLDepth Attained(ft) 1.45
Average HGLElevation?ttained(ft) 844.38
Average HGLDepth Attained(ft) 0.63
Time oflvhxHGLOccurrence(days hh:mm) 0 12:48
Total Exflltration Volume(1000-ft') 0
Total Hooded Volume(ac-in) 0
Total Time Hooded(min) 0
Total Retention lime(sec) 0
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Post-construction 10 Year, 24 Hour
BREC, P.A. Dollar General— Store#30370 16

Project Description
File Name POST-CON-ROUBNG07012024.SPF
Description Folders\PROJECTS\BREC\PROJECTS\316 TFRAMDRE DEIELOPME
NI\3161322023 DOLLAR GENERAL WELCOME NC\PRODUCTION
Project Options
FlowUnits CFS
Elevation Type Elevation
HydrologyMethod SCS TR 55
Time of Concentration(TOC)Ivithod User-Defined
Link Routing IVEthod Hydrodynamic
Enable Overflow Ponding at Nodes YES
Skip Steady State Analysis lime Periods NO
Analysis Options
Start Analysis On 00:00:00 0:00:00
End Analysis On 00:00:00 0:00:00
Start Reporting On 00:00:00 0:00:00
AntecedentDryDays 0 days
Runoff(ay Weather)Time Step 0 01:00:00 days hh:mm:ss
Runoff(Wet Weather)Time Step 0 00:05:00 days hh:mm:ss
Reporting Time Step 0 00:00:05 days hh:mm:ss
Routing Time Step 5 seconds
Number of Elements
Q
Rain Gages 1
Subbasins 4
Nodes 4
Junctions 2
Outfalls 1
Flow Diversions 0
Inlets 0
Storage Nodes 1
Links 6
Channels 0
Pipes 2
Pumps 0
Orifices 2
Weirs 1
Outlets 1
Pollutants 0
Land Uses 0
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin Summary
SN Subbasin Area PeakRate Weighted Total Total Total Peak Time of
ID Factor Curve Rainfall Runoff Runoff Runoff Concentration
Number Volume
(ac) (in) (m) (ac-in) (cfs) (days hh:mm:ss)
1{POST-CON}.POST-CON:1 0.25 484.00 98.00 4.88 4.64 1.16 1.60 0 00:05:00
2{POST-CON}.POST-CON:2 0.16 484.00 97.70 4.88 4.61 0.74 1.02 0 00:05:00
3{POST-CON}.POST-CON:3 0.31 484.00 95.60 4.88 4.37 1.35 1.92 0 00:05:00
4{POST-CON}.POST-CON:4 0.24 484.00 74.30 4.88 2.29 0.55 0.89 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Node Summary
SN Element Element Invert Ground/Rim Initial Surcharge Ponded Peak IvfaxHGL Ma
ID Type Elevation (Max) Water Elevation Area Inflow Elevation Surcharg
Elevation Elevation Attained Dept
Attain
(0) (fl) (fl) (fl) (IF) (cfh) (ft) (f
1 SCM-RISER Junction 840.75 848.00 840.75 0.00 0.00 0.32 840.96 0.0
2 SITE-JUNCTION(VIRTUAL) Junction 840.63 848.00 840.63 0.00 0.00 0.32 840.83 0.0
3 OUIFAII.1 Outfafl 840.50 0.32 840.68
4 SAND-FILTER Storage Node 843.75 848.00 843.75 0.00 5.42 846.20
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

link Summary
SNElement Element From To(Outlet) Length Inlet Outlet Average Diameter or Mrnning's Peak Design Flow
ID Type (Inlet) Node Invert Invert Slope Height Roughness Flow Capacity
Node Elevation Elevation
(ft) (ft) (ft) (%) (in) (cfs) (cif)
1 OCS-BARREL Pipe SCM-RISER SIIQJUNCTION(VIRTUAL) 14.00 840.75 840.63 0.8900 18.000 0.0120 0.32 10.75
2 S1TE-LINK(VIRTUAL) Pipe SITE-JUNCTION(VIRTUAL) OUIFALL1 14.00 840.63 840.50 0.8900 18.000 0.0120 0.32 10.75
3 OCS-RIM Orifice SAND-FILTER SCM-RISER 843.75 840.75 36.000 0.00
4 ORIFICE-1 Orifice SAND-FILTER SCM-RISER 843.75 840.75 3.000 0.28
5 SAND-MEDIA Outlet SAND-FILTER SCM-RISER 843.75 840.75 0.05
6 FM-SPILLWAY Weir SAND-FILTER SHE-JUNCTION(VIRTUAL) 843.75 840.63 0.00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin Hydrology
Subbasin:{POST-CON}.POST-CON:1
Input Data
Area(ac) 0.25
Peak Rate Factor 484
Weighted Curve Number 98
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.25 - 98
Composite Area&Weighted CN 0.25 98
Subbasin Runoff Results
Total Rainfall(in) 4.88
Total Runoff(in) 4.64
PeakRunoff(cfs) 1.6
Weighted Curve Number 98
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:1
Rainfall Intensity Graph
7
6.5
6
5.5
5
4.5- - -
c 4_
To —
c
2.5
2
1.5
1
0.5
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
1.7
1.6
1.5
1.4
1.3-
1.2
1.1
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:2
Input Data
Area(ac) 0.16
Peak Rate Factor 484
Weighted Curve Number 97.7
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.16 - 97.7
Composite Area&Weighted CN 0.16 97.7
Subbasin Runoff Results
Total Rainfall(in) 4.88
Total Runoff(in) 4.61
Peak Runoff(cfs) 1.02
Weighted Curve Number 97.7
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:2
Rainfall Intensity Graph
7.5
7-
6.5 1
6
5.5
5_
4.5
5 4
m
4- 3.5-
m -
3
2.5
2
1.5
1
0.5
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
1.1
1.05 •
—
1
0.95
0.9 .
0.85 —
0.8
0.75
0.7
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:3
Input Data
Area(ac) 0.31
Peak Rate Factor 484
Weighted Curve Number 95.6
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.31 - 95.6
Composite Area&Weighted CN 0.31 95.6
Subbasin Runoff Results
Total Rainfall(in) 4.88
Total Runoff(in) 4.37
Peak Runoff(cfs) 1.92
Weighted Curve Number 95.6
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:3
Rainfall Intensity Graph
7.5
7-
6.5
6
5.5
5_
4.5
5 4
m
4- 3.5-
m -
3
2.5
2
1.5
1
0.5
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
2.1
2
1.9-
1.8 • •
1.7 .
1.6
1.5 .
1.4
1.3 •
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:4
Input Data
Area(ac) 0.24
Peak Rate Factor 484
Weighted Curve Number 74.3
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.24 - 74.3
Composite Area&Weighted CN 0.24 74.3
Subbasin Runoff Results
Total Rainfall(in) 4.88
Total Runoff(in) 2.29
Peak Runoff(cfs) 0.89
Weighted Curve Number 74.3
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:4
Rainfall Intensity Graph
7.5
7-
6.5
6
5.5
5_
_ 4.5
5 4
m
4- 3.5-
m -
3
2.5
2
1.5
1
0.5
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
0.95
0.9
0.85
0.8-
0.75-
0.7-
0.65
0.6-
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Junction Input
SN Element Invert Ground/Rim Ground/Rim Initial Initial Surcharge Surcharge Ponded Mnimum
ID Elevation (Max) (Max) Water Water Elevation Depth Area Pipe
Elevation Offset Elevation Depth Cover
(ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft') (in)
1 SCM-RISFR 840.75 848.00 7.25 840.75 0.00 0.00 -848.00 0.00 0.00
2 Sr1E JUNCIION(v1RIUAL) 840.63 848.00 7.38 840.63 0.00 0.00 -848.00 0.00 0.00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Junction Results
SN Element Peak Peak IvhxHGL MaxHGL Max Mn Average HGL Average HGL Time
ID Inflow Lateral Elevation Depth Surcharge Freeboard Elevation Depth MaxH
Inflow Attained Attained Depth Attained Attained Attained Occurren
Attained
(cfs) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (days hh:m
1 SCM-RISFR 0.32 0.00 840.96 0.21 0.00 7.04 840.83 0.08 0 12:
2 SII&JUNCIION(VIRlUAL) 0.32 0.00 840.83 0.20 0.00 7.17 840.71 0.08 0 12:
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Pipe Input
SN Element Length Inlet Inlet Outlet Outlet Total Average Pipe Pipe Pipe Manning
ID Invert Invert Invert Invert Drop Slope Shape Diameter or Width Roughnes
Elevation Offset Elevation Offset Height
(ft) (ft) (ft) (ft) (ft) (8) (%) (in) (in)
1 OCS-BARREL. 14.00 840.75 0.00 840.63 0.00 0.13 0.8900 CIRCULAR 18.000 18.000 0.012
2 SITE-LINK(VIRTUAL) 14.00 840.63 0.00 840.50 0.00 0.13 0.8900 CIRCULAR 18.000 18.000 0.012
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Pipe Results
SNElement Peak Time of Design Flow PeakFlow/ PeakFlow Travel PeakFlow PeakFlow Total Time
ID Flow PeakFlow Capacity Design Flow Velocity Time Depth Depth/ Surcharged
Occurrence Ratio Total Depth
Ratio
(cfs) (days hh:mm) (cfs) (ft/sec) (min) (ft) (min)
1 OCS-BARREL 0.32 0 12:48 10.75 0.03 2.14 0.11 0.21 0.14 0.00
2 SI1E-L1NK(VIRTUAL) 0.32 0 12:49 10.75 0.03 2.43 0.10 0.19 0.13 0.00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Storage Nodes
Storage Node:SAND-FILII t
Input Data
Invert Elevation(It) 843.75
Max(Rim)Elevation(ft) 848.00
Max(Rim)Offset OD 4.25
Initial Water Elevation(ft) 843.75
Initial Water Depth(ft) 0.00
Ponded Area(fP) 0.00
Evaporation Loss 0.00
Storage Area Volume Curves
Storage Curve:SAND-FILTER
Stage Storage Storage
Area Volume
(ft) (IP) (fts)
0 1870 0
1 3007 2438.5
2 4200 6042
3 5450 10867
4 6756 16970
4.25 7091 18700.88
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Storage Area Volume Curves
Storage Volume mn
o
2.7
�~1 4-
0.7
0.6
0.5
This document was created by an application that isn't licensed to use novaPDF.

Storage Node:SAND-FILIER(continued)
Outflow Weirs
SN Element Weir Flap Crest Crest Length Weir Total Dischar
ID Type Gate Elevation Offset Height Coefficie
(ft) (ft) (ft) (ft)
1 ElVI-SPIILWAY Trapezoidal No 846.75 3.00 10.00 1.25 3'
Outflow Orifices
SN Element Orifice Orifice Flap Circular Rectangular Rectangular Orifi
ID Type Shape Gate Orifice Orifice Orifice Inv(
Diameter Height Width Elevatii
(in) (m) (in)
1 OCS-RIM Bottom Rectangular No 36.00 36.00 846.:
2 ORIFICE-1 Side CIRCULAR No 3.00 844.'
Output Summary Results
Peak Inflow(cfs) 5.42
Peak Lateral Inflow(cfs) 5.42
Peak Outflow(cfs) 0.32
Peak Exfiltration How Rate(cftn) 0
Max HGLElevation Attained(ft) 846.2
Max HGLDepth Attained(ft) 2.45
Average HGLIIevation?ttained(ft) 844.61
Average HGLDepth Attained(ft) 0.86
Time oflvhxHGLOccurrence(days hh:mm) 0 12:48
Total Fxflltration Volume(1000-ft') 0
Total Hooded Volume(ac-in) 0
Total Time Hooded(min) 0
Total Retention lime(sec) 0
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Post-construction 100 Year, 24 Hour
BREC, P.A. Dollar General— Store#30370 17

Project Description
File Name POST-CON-ROUTING 07012024.SPF
Description Folders\PROJECTS\BREC\PROJECIS\316IFRA R)REDEVIIDPME
NI\3161322023 DOLLAR GENERAL WELCOME NC\PRODUCTION
Project Options
FlowUnits CFS
Elevation Type Elevation
HydrologyJVkthod SCS TR 55
Time of Concentration(IOC)NEthod User-Defined
Link Routing IVtthod Hydrodynamic
Enable Overflow Ponding at Nodes YES
Skip Steady State Analysis lime Periods NO
Analysis Options
Start Analysis On 00:00:00 0:00:00
End Analysis On 00:00:00 0:00:00
Start Reporting On 00:00:00 0:00:00
Antecedent DryDays 0 days
Runoff(Dry Weather)lime Step 001:00:00 days hh:mm:ss
Runoff(Wet Weather)Time Step 0 00:05:00 days hh:mm:ss
Reporting Time Step 0 00:00:05 days hh:mm:ss
Routing Time Step 5 seconds
Number of Elements
QtY
Rain Gages 1
Subbasins 4
Nodes 4
Junctions 2
Outfalls 1
Flow Diversions 0
Inlets 0
Storage Nodes 1
links 6
Channels 0
Pipes 2
Pumps 0
Orifices 2
Weirs 1
Outlets 1
Pollutants 0
Land Uses 0
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin Summary
SN Subbasin Area PeakRate Weighted Total Total Total Peak Time of
ID Factor Curve Rainfall Runoff Runoff Runoff Concentration
Number Volume
(ac) (in) (m) (ac-in) (cfs) (days hh:mm:ss)
1{POST-CON}.POST-CON:1 0.25 484.00 98.00 7.18 6.94 1.74 2.36 0 00:05:00
2{POST-CON}.POST-CON:2 0.16 484.00 97.70 7.18 6.90 1.10 1.51 0 00:05:00
3{POST-CON}.POST-CON:3 0.31 484.00 95.60 7.18 6.66 2.06 2.87 0 00:05:00
4{POST-CON}.POST-CON:4 0.24 484.00 74.30 7.18 4.23 1.02 1.63 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Node Summary
SN Element Element Invert Ground/Rim Initial Surcharge Ponded Peak IvfaxHGL Ma
ID Type Elevation (Max) Water Elevation Area Inflow Elevation Surcharg
Elevation Elevation Attained Dept
Attain
(fl) (ft) (fl) (fl) (IF) (cfh) (6) (f
1 SCM-RISER Junction 840.75 848.00 840.75 0.00 0.00 5.85 842.04 0.0
2 SITE-JUNCTION(VIRTUAL) Junction 840.63 848.00 840.63 0.00 0.00 5.85 841.70 0.0
3 OUIFAUr1 Outfall 840.50 5.85 841.29
4 SAND-FILLER Storage Node 843.75 848.00 843.75 0.00 8.36 846.52
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

link Summary
SNElement Element From To(Outlet) Length Inlet Outlet Average Diameter or Mrnning's Peak Design Flow
ID Type (Inlet) Node Invert Invert Slope Height Roughness Flow Capacity
Node Elevation Elevation
(ft) (ft) (ft) (%) (in) (cfs) (cif)
1 OCS-BARREL Pipe SCM-RISER SIIQJUNCTION(VIRTUAL) 14.00 840.75 840.63 0.8900 18.000 0.0120 5.85 10.75
2 S1TE-LINK(VIRTUAL) Pipe SITE-JUNCTION(VIRTUAL) OUIFALL1 14.00 840.63 840.50 0.8900 18.000 0.0120 5.85 10.75
3 OCS-RIM Orifice SAND-FILTER SCM-RISER 843.75 840.75 36.000 5.49
4 ORIFICE-1 Orifice SAND-FILTER SCM-RISER 843.75 840.75 3.000 0.31
5 SAND-MEDIA Outlet SAND-FILTER SCM-RISER 843.75 840.75 0.05
6 FM-SPILLWAY Weir SAND-FILTER SHE-JUNCTION(VIRTUAL) 843.75 840.63 0.00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin Hydrology
Subbasin:{POST-CON}.POST-CON:1
Input Data
Area(ac) 0.25
Peak Rate Factor 484
Weighted Curve Number 98
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.25 - 98
Composite Area&Weighted CN 0.25 98
Subbasin Runoff Results
Total Rainfall(in) 7.18
Total Runoff(in) 6.94
PeakRunoff(cfs) 2.36
Weighted Curve Number 98
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:1
Rainfall Intensity Graph
10
9.5-
9-
8.5-
8-
7.5-
7-
6.5-
6-
5-
4.5-
4-
3.5-
3-
2.5-
2-
1.5-
0.5-
0 2 4 6 8 10 12 14 16 18 20 22 24 28 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
2.5
2.4-
2.3-
2.2
2.1-
2
1.9
1.8
1.7
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:2
Input Data
Area(ac) 0.16
Peak Rate Factor 484
Weighted Curve Number 97.7
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.16 - 97.7
Composite Area&Weighted CN 0.16 97.7
Subbasin Runoff Results
Total Rainfall(in) 7.18
Total Runoff(in) 6.9
Peak Runoff(cfs) 1.51
Weighted Curve Number 97.7
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:2
Rainfall Intensity Graph
10.5
10-
9.5-
9-
8.5-
8-
7.5-
7-
6.5-
6-
C
5.5-
m 5-
C
4.5
4
3.5
3
2.5
2-
1.5
0.5-
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
1.7
1.6-
1.5-
1.4-
1.3-
1.2-
1.1-
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:3
Input Data
Area(ac) 0.31
Peak Rate Factor 484
Weighted Curve Number 95.6
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.31 - 95.6
Composite Area&Weighted CN 0.31 95.6
Subbasin Runoff Results
Total Rainfall(in) 7.18
Total Runoff(in) 6.66
Peak Runoff(cfs) 2.87
Weighted Curve Number 95.6
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:3
Rainfall Intensity Graph
10.5
10
9.5
9
8.5
8 -
7.5
7
6.5
s 6
c -
5.5
2 5
c
4.5
4
3.5
3
2.5 —
2
1.5
1
0.5
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
3.1
3
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:4
Input Data
Area(ac) 0.24
Peak Rate Factor 484
Weighted Curve Number 74.3
Rain Gage ID WELCOME
Composite Curve Number
32 Area Soil Curve
Soil/Surface Description (acres) Group Number
0.24 - 74.3
Composite Area&Weighted CN 0.24 74.3
Subbasin Runoff Results
Total Rainfall(in) 7.18
Total Runoff(in) 4.23
Peak Runoff(cfs) 1.63
Weighted Curve Number 74.3
Time of Concentration(days hh:mm:ss) 0 00:05:00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Subbasin:{POST-CON}.POST-CON:4
Rainfall Intensity Graph
10.5
10-
9.5-
9-
8.5-
8-
7.5-
7-
6.5-
6-
C
5.5-
m 5-
C
4.5
4
3.5
3
2.5
2-
1.5
0.5-
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Time(hrs)
Runoff Hydrograph
1.8
1.7-
1.6-
1.5-
1.4-
1.3-
1.2-
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Junction Input
SN Element Invert Ground/Rim Ground/Rim Initial Initial Surcharge Surcharge Ponded Mnimum
ID Elevation (Max) (Max) Water Water Elevation Depth Area Pipe
Elevation Offset Elevation Depth Cover
(ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft') (in)
1 SCM-RISFR 840.75 848.00 7.25 840.75 0.00 0.00 -848.00 0.00 0.00
2 Sr1E JUNCIION(v1RIUAL) 840.63 848.00 7.38 840.63 0.00 0.00 -848.00 0.00 0.00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Junction Results
SN Element Peak Peak IvhxHGL MaxHGL Max Mn Average HGL Average HGL Time
ID Inflow Lateral Elevation Depth Surcharge Freeboard Elevation Depth MaxH
Inflow Attained Attained Depth Attained Attained Attained Occurren
Attained
(cfs) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (days hh:m
1 SCM-RISFR 5.85 0.00 842.04 1.29 0.00 5.96 840.85 0.10 0 12:
2 SII&JUNCIION(VIRIUAL) 5.85 0.00 841.70 1.07 0.00 6.30 840.72 0.09 0 12:
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Pipe Input
SN Element Length Inlet Inlet Outlet Outlet Total Average Pipe Pipe Pipe Manning
ID Invert Invert Invert Invert Drop Slope Shape Diameter or Width Roughnes
Elevation Offset Elevation Offset Height
(ft) (ft) (ft) (ft) (ft) (8) (%) (in) (in)
1 OCS-BARREL. 14.00 840.75 0.00 840.63 0.00 0.13 0.8900 CIRCULAR 18.000 18.000 0.012
2 SITE-LINK(VIRTUAL) 14.00 840.63 0.00 840.50 0.00 0.13 0.8900 CIRCULAR 18.000 18.000 0.012
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Pipe Results
SNElement Peak Time of Design Flow PeakFlow/ PeakFlow Travel PeakFlow PeakFlow Total Time
ID Flow PeakFlow Capacity Design Flow Velocity Time Depth Depth/ Surcharged
Occurrence Ratio Total Depth
Ratio
(cfs) (days hh:mm) (cfs) (ft/sec) (min) (ft) (min)
1 OCS-BARREL 5.85 0 12:01 10.75 0.54 3.92 0.06 1.18 0.79 0.00
2 SlT&L1NK(VIRTUAL) 5.85 0 12:02 10.75 0.54 5.07 0.05 0.93 0.62 0.00
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Storage Nodes
Storage Node:SAND-FILII t
Input Data
Invert Elevation(It) 843.75
Max(Rim)Elevation(ft) 848.00
Max(Rim)Offset OD 4.25
Initial Water Elevation(ft) 843.75
Initial Water Depth(ft) 0.00
Ponded Area(fP) 0.00
Evaporation Loss 0.00
Storage Area Volume Curves
Storage Curve:SAND-FILTER
Stage Storage Storage
Area Volume
(ft) (IP) (fts)
0 1870 0
1 3007 2438.5
2 4200 6042
3 5450 10867
4 6756 16970
4.25 7091 18700.88
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Storage Area Volume Curves
Storage Volume mn
o
2.7
�~1 4-
0.7
0.6
0.5
This document was created by an application that isn't licensed to use novaPDF.

Storage Node:SAND-FILIER(continued)
Outflow Weirs
SN Element Weir Flap Crest Crest Length Weir Total Dischar
ID Type Gate Elevation Offset Height Coefficie
(ft) (ft) (ft) (ft)
1 ElVI-SPIILWAY Trapezoidal No 846.75 3.00 10.00 1.25 3'
Outflow Orifices
SN Element Orifice Orifice Flap Circular Rectangular Rectangular Orifi
ID Type Shape Gate Orifice Orifice Orifice Inv(
Diameter Height Width Elevatii
(in) (m) (in)
1 OCS-RIM Bottom Rectangular No 36.00 36.00 846.:
2 ORIFICE-1 Side CIRCULAR No 3.00 844.'
Output Summary Results
Peak Inflow(cfs) 8.36
Peak Lateral Inflow(cfs) 8.36
Peak Outflow(cfs) 5.85
Peak Fxfiltration How Rate(cftn) 0
MaxHGLElevation Attained(ft) 846.52
Max HGLDepth Attained(ft) 2.77
Average HGLElevation?ttained(ft) 844.74
Average HGLDepth Attained(ft) 0.99
Time oflvhxHGLOccurrence(days hh:mm) 0 12:01
Total Exflltration Volume(1000-ft') 0
Total Hooded Volume(ac-in) 0
Total Time Hooded(min) 0
Total Retention lime(sec) 0
This document was created by an application that isn't licensed to use novaPDF.
Purchase a license to generate PDF files without this notice.

Soils Report
BREC, P.A. Dollar General— Store#30370 18

USDA United States A product of the National Custom Soil Resource
Department of Cooperative Soil Survey,
Agriculture a joint effort of the United Report for
States Department of
RCS Agriculture and other Davidson County,
Federal agencies, State
Naturalagencies including the North Carolina
Resources Agricultural Experiment
Conservation Stations, and local
Service participants
a
\I '.
i. vitt.
It\
N
_ S
4
N
Al
0 =••••••••• 100 ft J
April 30, 2024

Preface
Soil surveys contain information that affects land use planning in survey areas.
They highlight soil limitations that affect various land uses and provide information
about the properties of the soils in the survey areas. Soil surveys are designed for
many different users, including farmers, ranchers, foresters, agronomists, urban
planners, community officials, engineers, developers, builders, and home buyers.
Also, conservationists, teachers, students, and specialists in recreation, waste
disposal, and pollution control can use the surveys to help them understand,
protect, or enhance the environment.
Various land use regulations of Federal, State, and local governments may impose
special restrictions on land use or land treatment. Soil surveys identify soil
properties that are used in making various land use or land treatment decisions.
The information is intended to help the land users identify and reduce the effects of
soil limitations on various land uses. The landowner or user is responsible for
identifying and complying with existing laws and regulations.
Although soil survey information can be used for general farm, local, and wider area
planning, onsite investigation is needed to supplement this information in some
cases. Examples include soil quality assessments (http://www.nrcs.usda.gov/wps/
portal/nrcs/main/soils/health/) and certain conservation and engineering
applications. For more detailed information, contact your local USDA Service Center
(https://offices.sc.egov.usda.gov/locator/app?agency=nrcs)or your NRCS State Soil
Scientist(http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/?
cid=nrcs142p2_053951).
Great differences in soil properties can occur within short distances. Some soils are
seasonally wet or subject to flooding. Some are too unstable to be used as a
foundation for buildings or roads. Clayey or wet soils are poorly suited to use as
septic tank absorption fields. A high water table makes a soil poorly suited to
basements or underground installations.
The National Cooperative Soil Survey is a joint effort of the United States
Department of Agriculture and other Federal agencies, State agencies including the
Agricultural Experiment Stations, and local agencies. The Natural Resources
Conservation Service (NRCS) has leadership for the Federal part of the National
Cooperative Soil Survey.
Information about soils is updated periodically. Updated information is available
through the NRCS Web Soil Survey, the site for official soil survey information.
The U.S. Department of Agriculture (USDA) prohibits discrimination in all its
programs and activities on the basis of race, color, national origin, age, disability,
and where applicable, sex, marital status, familial status, parental status, religion,
sexual orientation, genetic information, political beliefs, reprisal, or because all or a
part of an individual's income is derived from any public assistance program. (Not
all prohibited bases apply to all programs.) Persons with disabilities who require
2

alternative means for communication of program information (Braille, large print,
audiotape, etc.) should contact USDA's TARGET Center at [phone] (voice
and TDD). To file a complaint of discrimination, write to USDA, Director, Office of
Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or
call [phone] (voice)or(202) 720-6382 (TDD). USDA is an equal opportunity
provider and employer.
3

Contents
Preface 2
How Soil Surveys Are Made 5
Soil Map 8
Soil Map 9
Legend 10
Map Unit Legend 11
Map Unit Descriptions 11
Davidson County, North Carolina 13
VaB—Vance sandy loam, 2 to 8 percent slopes 13
References 15
4

How Soil Surveys Are Made
Soil surveys are made to provide information about the soils and miscellaneous
areas in a specific area. They include a description of the soils and miscellaneous
areas and their location on the landscape and tables that show soil properties and
limitations affecting various uses. Soil scientists observed the steepness, length,
and shape of the slopes; the general pattern of drainage; the kinds of crops and
native plants; and the kinds of bedrock. They observed and described many soil
profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The
profile extends from the surface down into the unconsolidated material in which the
soil formed or from the surface down to bedrock. The unconsolidated material is
devoid of roots and other living organisms and has not been changed by other
biological activity.
Currently, soils are mapped according to the boundaries of major land resource
areas (MLRAs). MLRAs are geographically associated land resource units that
share common characteristics related to physiography, geology, climate, water
resources, soils, biological resources, and land uses (USDA, 2006). Soil survey
areas typically consist of parts of one or more MLRA.
The soils and miscellaneous areas in a survey area occur in an orderly pattern that
is related to the geology, landforms, relief, climate, and natural vegetation of the
area. Each kind of soil and miscellaneous area is associated with a particular kind
of landform or with a segment of the landform. By observing the soils and
miscellaneous areas in the survey area and relating their position to specific
segments of the landform, a soil scientist develops a concept, or model, of how they
were formed. Thus, during mapping, this model enables the soil scientist to predict
with a considerable degree of accuracy the kind of soil or miscellaneous area at a
specific location on the landscape.
Commonly, individual soils on the landscape merge into one another as their
characteristics gradually change. To construct an accurate soil map, however, soil
scientists must determine the boundaries between the soils. They can observe only
a limited number of soil profiles. Nevertheless, these observations, supplemented
by an understanding of the soil-vegetation-landscape relationship, are sufficient to
verify predictions of the kinds of soil in an area and to determine the boundaries.
Soil scientists recorded the characteristics of the soil profiles that they studied. They
noted soil color, texture, size and shape of soil aggregates, kind and amount of rock
fragments, distribution of plant roots, reaction, and other features that enable them
to identify soils. After describing the soils in the survey area and determining their
properties, the soil scientists assigned the soils to taxonomic classes (units).
Taxonomic classes are concepts. Each taxonomic class has a set of soil
characteristics with precisely defined limits. The classes are used as a basis for
comparison to classify soils systematically. Soil taxonomy, the system of taxonomic
classification used in the United States, is based mainly on the kind and character
of soil properties and the arrangement of horizons within the profile. After the soil
5

Custom Soil Resource Report
scientists classified and named the soils in the survey area, they compared the
individual soils with similar soils in the same taxonomic class in other areas so that
they could confirm data and assemble additional data based on experience and
research.
The objective of soil mapping is not to delineate pure map unit components; the
objective is to separate the landscape into landforms or landform segments that
have similar use and management requirements. Each map unit is defined by a
unique combination of soil components and/or miscellaneous areas in predictable
proportions. Some components may be highly contrasting to the other components
of the map unit. The presence of minor components in a map unit in no way
diminishes the usefulness or accuracy of the data. The delineation of such
landforms and landform segments on the map provides sufficient information for the
development of resource plans. If intensive use of small areas is planned, onsite
investigation is needed to define and locate the soils and miscellaneous areas.
Soil scientists make many field observations in the process of producing a soil map.
The frequency of observation is dependent upon several factors, including scale of
mapping, intensity of mapping, design of map units, complexity of the landscape,
and experience of the soil scientist. Observations are made to test and refine the
soil-landscape model and predictions and to verify the classification of the soils at
specific locations. Once the soil-landscape model is refined, a significantly smaller
number of measurements of individual soil properties are made and recorded.
These measurements may include field measurements, such as those for color,
depth to bedrock, and texture, and laboratory measurements, such as those for
content of sand, silt, clay, salt, and other components. Properties of each soil
typically vary from one point to another across the landscape.
Observations for map unit components are aggregated to develop ranges of
characteristics for the components. The aggregated values are presented. Direct
measurements do not exist for every property presented for every map unit
component. Values for some properties are estimated from combinations of other
properties.
While a soil survey is in progress, samples of some of the soils in the area generally
are collected for laboratory analyses and for engineering tests. Soil scientists
interpret the data from these analyses and tests as well as the field-observed
characteristics and the soil properties to determine the expected behavior of the
soils under different uses. Interpretations for all of the soils are field tested through
observation of the soils in different uses and under different levels of management.
Some interpretations are modified to fit local conditions, and some new
interpretations are developed to meet local needs. Data are assembled from other
sources, such as research information, production records, and field experience of
specialists. For example, data on crop yields under defined levels of management
are assembled from farm records and from field or plot experiments on the same
kinds of soil.
Predictions about soil behavior are based not only on soil properties but also on
such variables as climate and biological activity. Soil conditions are predictable over
long periods of time, but they are not predictable from year to year. For example,
soil scientists can predict with a fairly high degree of accuracy that a given soil will
have a high water table within certain depths in most years, but they cannot predict
that a high water table will always be at a specific level in the soil on a specific date.
After soil scientists located and identified the significant natural bodies of soil in the
survey area, they drew the boundaries of these bodies on aerial photographs and
6

Custom Soil Resource Report
identified each as a specific map unit. Aerial photographs show trees, buildings,
fields, roads, and rivers, all of which help in locating boundaries accurately.
7

Soil Map
The soil map section includes the soil map for the defined area of interest, a list of
soil map units on the map and extent of each map unit, and cartographic symbols
displayed on the map. Also presented are various metadata about data used to
produce the map, and a description of each soil map unit.
8

Custom Soil Resource Report
Soil Map
567170 567180 567190 567200 567210 567220 567230 567240 567250 567260 567270 567280 567290
35°53'48"N - �- 8 355 53 48"N
c3-, ik \:\P , _ _ 14.- .1__
ii 7 : z . -,
N— i ' o
-w
11.
r N
a ,
t o
m —
mN
.-
Ilk
IIIIMIIII01411111111p -
• •
• !1/ 41101111101111111111 '.—A
�000 Gawp maw 72 bi ea0od aft twos scale.
35°53'45"N 35°53'45"N
567170 567180 567190 567200 567210 567220 567230 567240 567250 567260 567270 567280 567290
3 3
o -
Map Scale:1:616 if printed on A landscape(11"x 8.5")sheet.
Meters
8 N 0 5 10 20 30 8
Feet
0 25 50 100 150
Map projection:Web Mercator Comer cooniinates:WGS84 Edge tics:UTM Zone 17N WGS84
9

Custom Soil Resource Report
MAP LEGEND MAP INFORMATION
Area of Interest(AOI) 14 Spoil Area The soil surveys that comprise your AOI were mapped at
Area of Interest(AOI) 1:24,000.
Q Stony Spot
Soilsit Very Stony Spot
Soil Map Unit Polygons Warning:Soil Map may not be valid at this scale.
Wet Spot
,..,. Soil Map Unit Lines Enlargement of maps beyond the scale of mapping can cause
p Other misunderstandingof the detail of mapping and accuracyof soil
p Soil Map Unit Points pp 9
.• Special Line Features line placement.The maps do not show the small areas of
Special Point Features contrasting soils that could have been shown at a more detailed
Blowout Water Features scale.
Streams and Canals
kg Borrow Pit
Transportation Please rely on the bar scale on each map sheet for map
* clay Spot 1.44 Rails measurements.
0 Closed Depression
o,/ Interstate Highways
Gravel Pit Source of Map: Natural Resources Conservation Service
.r US Routes Web Soil Survey URL:
Gravelly Spot Major Roads Coordinate System: Web Mercator(EPSG:3857)
® Landfill Local Roads Maps from the Web Soil Survey are based on the Web Mercator
• Lava Flow Background projection,which preserves direction and shape but distorts
distance and area.A projection that preserves area,such as the
46 Marsh or swamp Aerial Photography Albers equal-area conic projection,should be used if more
It Mine or Quarry accurate calculations of distance or area are required.
4 Miscellaneous Water This product is generated from the USDA-NRCS certified data as
O Perennial Water of the version date(s)listed below.
v Rock Outcrop Soil Survey Area: Davidson County, North Carolina
+ Saline Spot Survey Area Data: Version 25,Sep 13,2023
Sandy Spot Soil map units are labeled(as space allows)for map scales
Severely Eroded Spot 1:50,000 or larger.
• Sinkhole Date(s)aerial images were photographed: Mar 13,2022—May
31 Slide or Slip 9,2022
oa Sodic Spot The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps.As a result,some minor
shifting of map unit boundaries may be evident.
10

Custom Soil Resource Report
Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
VaB Vance sandy loam,2 to 8 1.0 100.0%
percent slopes
Totals for Area of Interest 1.0 100.0%
Map Unit Descriptions
The map units delineated on the detailed soil maps in a soil survey represent the
soils or miscellaneous areas in the survey area. The map unit descriptions, along
with the maps, can be used to determine the composition and properties of a unit.
A map unit delineation on a soil map represents an area dominated by one or more
major kinds of soil or miscellaneous areas. A map unit is identified and named
according to the taxonomic classification of the dominant soils. Within a taxonomic
class there are precisely defined limits for the properties of the soils. On the
landscape, however, the soils are natural phenomena, and they have the
characteristic variability of all natural phenomena. Thus, the range of some
observed properties may extend beyond the limits defined for a taxonomic class.
Areas of soils of a single taxonomic class rarely, if ever, can be mapped without
including areas of other taxonomic classes. Consequently, every map unit is made
up of the soils or miscellaneous areas for which it is named and some minor
components that belong to taxonomic classes other than those of the major soils.
Most minor soils have properties similar to those of the dominant soil or soils in the
map unit, and thus they do not affect use and management. These are called
noncontrasting, or similar, components. They may or may not be mentioned in a
particular map unit description. Other minor components, however, have properties
and behavioral characteristics divergent enough to affect use or to require different
management. These are called contrasting, or dissimilar, components. They
generally are in small areas and could not be mapped separately because of the
scale used. Some small areas of strongly contrasting soils or miscellaneous areas
are identified by a special symbol on the maps. If included in the database for a
given area, the contrasting minor components are identified in the map unit
descriptions along with some characteristics of each. A few areas of minor
components may not have been observed, and consequently they are not
mentioned in the descriptions, especially where the pattern was so complex that it
was impractical to make enough observations to identify all the soils and
miscellaneous areas on the landscape.
The presence of minor components in a map unit in no way diminishes the
usefulness or accuracy of the data. The objective of mapping is not to delineate
pure taxonomic classes but rather to separate the landscape into landforms or
landform segments that have similar use and management requirements. The
delineation of such segments on the map provides sufficient information for the
development of resource plans. If intensive use of small areas is planned, however,
onsite investigation is needed to define and locate the soils and miscellaneous
areas.
11

Custom Soil Resource Report
An identifying symbol precedes the map unit name in the map unit descriptions.
Each description includes general facts about the unit and gives important soil
properties and qualities.
Soils that have profiles that are almost alike make up a soil series. Except for
differences in texture of the surface layer, all the soils of a series have major
horizons that are similar in composition, thickness, and arrangement.
Soils of one series can differ in texture of the surface layer, slope, stoniness,
salinity, degree of erosion, and other characteristics that affect their use. On the
basis of such differences, a soil series is divided into soil phases. Most of the areas
shown on the detailed soil maps are phases of soil series. The name of a soil phase
commonly indicates a feature that affects use or management. For example, Alpha
silt loam, 0 to 2 percent slopes, is a phase of the Alpha series.
Some map units are made up of two or more major soils or miscellaneous areas.
These map units are complexes, associations, or undifferentiated groups.
A complex consists of two or more soils or miscellaneous areas in such an intricate
pattern or in such small areas that they cannot be shown separately on the maps.
The pattern and proportion of the soils or miscellaneous areas are somewhat similar
in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example.
An association is made up of two or more geographically associated soils or
miscellaneous areas that are shown as one unit on the maps. Because of present
or anticipated uses of the map units in the survey area, it was not considered
practical or necessary to map the soils or miscellaneous areas separately. The
pattern and relative proportion of the soils or miscellaneous areas are somewhat
similar. Alpha-Beta association, 0 to 2 percent slopes, is an example.
An undifferentiated group is made up of two or more soils or miscellaneous areas
that could be mapped individually but are mapped as one unit because similar
interpretations can be made for use and management. The pattern and proportion
of the soils or miscellaneous areas in a mapped area are not uniform. An area can
be made up of only one of the major soils or miscellaneous areas, or it can be made
up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example.
Some surveys include miscellaneous areas. Such areas have little or no soil
material and support little or no vegetation. Rock outcrop is an example.
12

Custom Soil Resource Report
Davidson County, North Carolina
VaB—Vance sandy loam, 2 to 8 percent slopes
Map Unit Setting
National map unit symbol: 2mn11
Elevation: 200 to 1,400 feet
Mean annual precipitation: 37 to 60 inches
Mean annual air temperature: 59 to 66 degrees F
Frost-free period: 200 to 240 days
Farmland classification: All areas are prime farmland
Map Unit Composition
Vance and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Vance
Setting
Landform: Interfluves
Landform position (two-dimensional): Summit
Landform position (three-dimensional): Interfluve
Down-slope shape: Convex
Across-slope shape: Convex
Parent material: Saprolite derived from granite and gneiss and/or schist
Typical profile
Ap- 0 to 6 inches: sandy loam
E- 6 to 10 inches: sandy loam
Bt- 10 to 38 inches: clay
Cl -38 to 50 inches: sandy clay loam
C2- 50 to 80 inches: loam
Properties and qualities
Slope: 2 to 8 percent
Depth to restrictive feature: More than 80 inches
Drainage class:Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water(Ksat): Moderately low to
moderately high (0.06 to 0.20 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water supply, 0 to 60 inches: Moderate (about 7.7 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 2e
Hydrologic Soil Group: C
Ecological site: F136XY820GA-Acidic upland forest, moist
Hydric soil rating: No
13

Custom Soil Resource Report
Minor Components
Helena
Percent of map unit: 8 percent
Landform: Ridges
Landform position (two-dimensional): Summit, footslope
Landform position (three-dimensional): Interfluve
Down-slope shape: Concave
Across-slope shape: Concave
Hydric soil rating: No
Appling
Percent of map unit:4 percent
Landform: Interfluves
Landform position (two-dimensional): Summit
Landform position (three-dimensional): Interfluve
Down-slope shape: Convex
Across-slope shape: Convex
Hydric soil rating: No
Wedowee
Percent of map unit: 3 percent
Landform: Interfluves
Landform position (two-dimensional): Summit
Landform position (three-dimensional): Interfluve
Down-slope shape: Convex
Across-slope shape: Convex
Hydric soil rating: No
14

References
American Association of State Highway and Transportation Officials (AASHTO).
2004. Standard specifications for transportation materials and methods of sampling
and testing. 24th edition.
American Society for Testing and Materials (ASTM). 2005. Standard classification of
soils for engineering purposes. ASTM Standard D2487-00.
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of
wetlands and deep-water habitats of the United States. U.S. Fish and Wildlife
Service FWS/OBS-79/31.
Federal Register. July 13, 1994. Changes in hydric soils of the United States.
Federal Register. September 18, 2002. Hydric soils of the United States.
Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric
soils in the United States.
National Research Council. 1995. Wetlands: Characteristics and boundaries.
Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service.
U.S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps/portal/
nres/detail/national/soils/?cid=nres 142p2_054262
Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for
making and interpreting soil surveys. 2nd edition. Natural Resources Conservation
Service, U.S. Department of Agriculture Handbook 436. http://
www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053577
Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of
Agriculture, Natural Resources Conservation Service. http://
www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053580
Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and
Delaware Department of Natural Resources and Environmental Control, Wetlands
Section.
United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of
Engineers wetlands delineation manual. Waterways Experiment Station Technical
Report Y-87-1.
United States Department of Agriculture, Natural Resources Conservation Service.
National forestry manual. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/
home/?cid=nres142p2_053374
United States Department of Agriculture, Natural Resources Conservation Service.
National range and pasture handbook. http://www.nres.usda.gov/wps/portal/nres/
detail/national/landuse/rangepasture/?cid=stelprdb1043084
15

Custom Soil Resource Report
United States Department of Agriculture, Natural Resources Conservation Service.
National soil survey handbook, title 430-VI. http://www.nres.usda.gov/wps/portal/
nres/detail/soils/scientists/?cid=nres142p2_054242
United States Department of Agriculture, Natural Resources Conservation Service.
2006. Land resource regions and major land resource areas of the United States,
the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook
296. http://www.nres.usda.gov/wps/portal/nres/detail/national/soils/?
cid=nres142p2_053624
United States Department of Agriculture, Soil Conservation Service. 1961. Land
capability classification. U.S. Department of Agriculture Handbook 210. http://
www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052290.pdf
16

June 24, 2024
CATAWBA VALLEY
ENGINEERING&TESTING Ms. Danielle Stewart
Teramore Development
P.O. Box 6460
PO Box 747
Hickory, NC 28603 Thomasville, Georgia is 31758
Hi
dstewart@tera more.net
1490 S. Center Street
Hickory, NC 28603
Re: Seasonal High Water Table Analysis (SHWT)
828 578 9972 0 Proposed Dollar General
www.cvet.net
Old US Highway 52
NC Firm No. C-3833 Lexington, Davidson County, North Carolina
SC Firm No. 5201
CVET Project Number: 23-590
Dear Ms. Stewart:
Catawba Valley Engineering and Testing (CVET) is pleased to submit the
results of the seasonal high-water table (SHWT) analysis performed at the
proposed Dollar General site located along Old US Highway 52 in Lexington,
North Carolina.
The contents of this report are provided for the use of Teramore
Development and its approved affiliates and are not intended to be used as
the basis for design and construction for any other project. The contents
of this report shall not be utilized by any other parties unless written
permission is granted by CVET. CVET disclaims all liability from the misuse
or reliance, by any such parties, of the contents brought forth in this report.
TEST PROCEDURES AND FIELD SERVICES
The subject site lies along a topographic high with land sloping to the east
and west from the site.
The SHWT analysis consisted of drilling one soil test boring (SHWT01) on
June 3, 2024, to a depth of approximately 20 feet below existing site grades
(borings log and location are appended to this report). Our interpretation
of the SHWT is the upper limit of soil saturated with water for periods long
enough for anaerobic conditions to affect soil color. Such periods result in
iron (Fe) reduction within soils causing mottling or soil leaching to occur,
typically resulting in a grayish color.
Geotechnical Engineering
Visual observations from SHWT01 indicated no evidence of elevated soil
Environmental Services moisture content or mottling to a depth of approximately 20.0 feet below
CMT/Special Inspections existing site grades. Groundwater was not observed in SHWTO1 upon

Page 2 of 2
Proposed Dollar General
Old US Highway 52
Lexington, Davidson County, North Carolina
CVET Project No. 23-590
completion of the test boring. Based upon our observations on this date, we conclude
that the SHWT at the project site is greater than 20.0 feet below existing site grades
at the location of the test boring.
The testing results presented in this letter report are based on the specific boring
location of SHWT01 and do not reflect variations in subsurface conditions that may
exist between the previously drilled test borings B01 through B09.
We appreciate the opportunity to provide professional engineering services for your
project. If you have any questions regarding the contents of this report, please feel
free to contact us.
Sincerely,
CATAWBA VALLEY ENGINEERING AND TESTING, P.C.
O.F SS..4/
?..Po %1(.9
SEAL
041419
•
�J I 6/24/24
James H. Carter David M. LeGrand, Jr., PE
Senior Geologist President
NC 041419
Attachments: Test Boring Location (SHWT01)
Boring Log (SHWT01)

\ f." • - CINIJ I'C.
r
SITE MAP
�� N
IP
....,,------fee.,,s,
55.
---V.—. 1 — 1"=80'
i PY IGN ��� /
in
���� ��� •B06 ; I
o ��� B02
n....R \ \ 01)
,.,41,01k, ' c5" 14. 1,
I Imo
\ Vf. ,r, , ttifF B03
/�B05o
sk \ -Tiv-
\ \DR." /1);Yr..1 4°.'
1,i • O IFS /
'+4\0' �G rt F...
R� �'1w7
4 . r t
O � Cis0 ®\ :w}}G. O m� / V.
•t ycP
SH WT01
��`� 03
0 OB09‘gd
T--)\, e8s 34'arE
LEGEND Zoo
X
DMT SOUNDING « �''
,Z� DRAINAGE
0 STANDARD PENETRATION TEST
RETENTION C
El CONE PENETRATION TEST r
AREA
Q CONTINUOUS SAMPLING TEST
0 ROCK CORE SAMPLING TEST
DRAWN BY PROJECT NO.
CATAWBA VALLEY TE�A V O�E LE X I \ G TO\ H WY 52
pp,;.:.' ENGINEERING & TESTING DIH 23-590
` P.C.B.747 HICKORY NORTH CAROLINA 28603 US HWY 52 DATE SHEET NO.
TELE 828-578-9972 LEXINGTON, NC
10/02/2023 FIG. 2

BORING NUMBER SHWT01
CATAWBA VALLEY PAGE 1 OF 1
N ENGINEERING &TESTING
1490 S.Center St./PO Box 747 Hickory,NC 28603 828 578 9972
CLIENT Teramore Development PROJECT NAME DG Lexington Hwy 52
PROJECT NUMBER 23-590 PROJECT LOCATION Lexington, North Carolina
DATE STARTED 6/3/24 COMPLETED 6/3/24 GROUND ELEVATION 842 ft MSL HOLE SIZE 2.25 inches
DRILLING CONTRACTOR CVET GROUND WATER LEVELS:
a
• DRILL RIG NUMBER 3 HAMMER EFFICIENCY 89% TIME OF BORING ---
z
o DRILLING METHOD 2.25 Hollow Stem Auger END OF BORING ---Cave at: 16.5
0)
N• LOGGED BY GW CHECKED BY JHC NOTES Elevation Data Pulled From NCOneMap 2'Contours
0
U
z_
0- } w
m = U �W o— H� ~X c4Z
1 w V d O MATERIAL DESCRIPTION _1 2 >0 O n Q I-p H SPT N()
: 0E:
i r,.
o ‘TOPSOIL:(3 Inches) f-841_o
1- (ML/MH)Poss. RESIDUAL:Sandy SILT or Sandy Elastic
z- - SILT,Brown,Yellow Brown,Gray,Moist,Medium Stiff
X
w SS 100 2-2-3
o- - 1 (5) •
- 839.0
o (ML/MH)RESIDUAL:Sandy SILT or Sandy Elastic SILT,
Fine Mica, Brown,Gray,Tan,Moist,Medium Dense
,I— — A ZS 100 5 69
( )
n
O 5
0
836.5
o
zz_ (SM-ML)RESIDUAL:Silty SAND w/Sandy Silt,Orange
a •- -: Brown,Gray,Tan,Dry,Loose -
O X SS 3-4-5
x 3 100 (9)
o
M
0
N
co
w \X SS 100 3-4-4
o 10 4 (8)
a
w
m
= f:
0
w 830.0
(SM)RESIDUAL:Silty SAND,Gray,Black,Tan, Dry,Loose
,• -
0 SS 100 3-3-4
65 (7)
15
0
c9
w
a
F.
w
0
w
U
C7
SS 100 3-3-3
0 6 (6)
O 20 .. 822.0
a Bottom of borehole at 20.0 feet.
O
z
H-
U
H-
w
U