20190850 Ver 1_SW Calcs 2019-05-10_20190620

MARCH CREEK SUBDIVISION
STORMWATER CALCULATIONS
PREPARED FOR:
KODAGEM LLC
48 SHERRY LANE
LEICESTER, NC 28748
DENNIS J. ROBERTS
[phone]
APRIL 10, 2019
JOB NO. 21867
168 PATTON AVE N UE
ASHEVILLE, NC 28801
O� °C ESS/O°
/1/��
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PHONE [phone]
FAX [phone]
o
SEALC
0 047671
Civil
Design
D
00
00
Concepts, PA
52 WALNUT STREET - SUITE 9
/ 9PHONE
NCBELS LICENSE #: C-2184 www.civildesignconcepts.com
WAVNESVILLE, NO 28786
1828)452-4410
FAX [phone]
✓A
SON
/1/1I�'00
JOB NO. 21867

MARSH CREEK SUBDIVISION
CDC Project No.: 21867
CDci�a
Qesign
conr�pts, PA
TABLE OF CONTENTS
1. Erosion Control and Stormwater Narrative
2. Drainage Runoff Summary
3. Drainage Area Maps
4. Stormtech BMP HydroCAD Report
S. Pipe Network Calculations
• 25 Year Event
6. NRCS Soil Report
7. Figures
• USGS Topo Map
• FEMA FIRMette Map
• NOAA Precipitation Tables
Mailing Address: P.O. Box 5432, Asheville, NC 28813
168 Patton Avenue Asheville, NC 28801 52 Walnut Street — Suite 9, Waynesville, NC 28786
Phone [phone] Fax [phone] Phone: [phone] Fax: [phone]

L'IVI�
Concepts, '
EROSION CONTROL AND STORMWATER NARRATIVE
General
Marsh Creek Subdivision is an undeveloped 4.63 -acre parcel (PIN# 9629-70-0376; 9629-70-
3496) located in Asheville, NC, on NC -63. The subject property consists of approximately 0.6
acres with grass cover; the remaining acreage is wooded. There is an existing stream that drains
through the site. The proposed subdivision will be constructed in 1 phase and consists of 20
residential lots. The post project impervious total is approximately 32%.
Erosion Control
The proposed erosion control devices consist of a construction entrance, inlet protection, silt
fences, temporary ditches, and two skimmer basins. Approximately 3.4 acres will be disturbed by
grading and construction activities. Refer to the construction plans for further detail on the erosion
control measures.
Storm Drainage
The proposed stormwater runoff will be collected via grate inlets and conveyed through storm
pipes into an underground SCM. This system is sized to treat the difference in stormwater runoff
volume leaving the project site between the pre- and post -development conditions for the 1 -year,
24 -hours storm. Permanent stormwater conveyance pipes were sized based on the 25 -year storm
event. The control structure is designed to release less stormwater than the pre -development for
the 2 and 10 -year, 24-hour and pass the 50 -year storm.
Mailing Address: P.O. Box 5432, Asheville, NC 28813
168 Patton Avenue, Asheville, NC 28801 52 Walnut Street — Suite 9, Waynesville, NC 28786
Phone [phone] Fax [phone] Phone: [phone] Fax: [phone]

Drainage Runoff Summary:

Drainage Runoff Summary - Marsh Creek Subdivision
CDC Project No. 21867
Pre -Development
2 -year storm
10 -year storm
50 -year storm
Pre -Drainage Area
39.4
92.3
160.3
Post -Development
2 -year storm
10 -year storm
50 -year storm
Post -Development
5.5
9.3
13.3
Post -Development Bypass
31.5
75.1
131.8
TOTAL
37.0
84.4
145.0
Post -Development Routed
2 -year storm
10 -year storm
50 -year storm
Routed
3.07
7.4
11.5
Post -Development Bypass
31.5
75.1
131.8
TOTAL
34.6
82.5
143.3
Post -Development /
Meets
Meets
Pre -Development
Requirements
I
Requirements

Drainage Area Maps:

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Pipe Network Calculations:

D Cidil
F3esign
Concepts, PA
STORM DRAIN CALCULATIONS
(25 YEAR EVENT)
MARSH CREEK SUBDIVISION
CDC Project No.: 21867
Issued 4/10/2019
PIPE
STRUCTURE
DRAINAGE
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FT)
(FT)
(IN)
(FT)
(%)
"N"
(FT)
(FT)
(AC)
(MIN)
"C"
(IN/HR)
(CFS)
(CFS)
(FT/SEC)
(CFS)
(CFS)
Al
0.8
2113.7
18
53.9
11.0
0.012
Al
2132.5
3.0
0.80
5.0
0.60
7.32
3.51
19.26
12.74
6.00
1.00
A2
0.4
2119.7
18
132.0
4.3
0.012
A2
2136.1
2.2
0.42
5.0
0.75
7.32
2.31
5.22
9.22
6.00
2.00
A3
0.3
2125.5
18
235.5
1.0
0.012
A3
2138.8
1.7
0.30
5.0
0.80
7.32
1.76
3.92
6.92
6.00
3.00
A4
0.9
2128.0
18
177.8
1.0
0.012
A4
2133.3
1.4
0.94
5.0
0.75
7.32
5.16
2.92
5.16
6.00
4.00
B1
0.0
2104.3
18
29.6
1.7
0.012
B1
2115.1
2.2
0.00
5.0
0.00
0.00
9.32
8.91
0.00
....
5.00
BP -1
35.0
2101.8
48
136.2
10.4
0.012
BP -1
2120.2
2.3
35.00
7.5
0.25
6.58
57.57
26.56
57.57
....
6.00
Issued 4/10/2019

HydroCAD Report

6S 2S 3S
PRE DEVELOPMENT POSI DEV
BYP SS
4P 5L
Underground Storage A Combined
Subcat Reach on Link

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Area Listing (all nodes)
Area CN Description
(sq -ft) (subcatchment-numbers)
2,423,963 61 >75% Grass cover, Good, HSG B (2S, 3S, 6S)
828,282 98 Paved parking, HSG B (2S, 3S, 6S)
3,252,245 70 TOTAL AREA

2019-5-7_21867 - Stormtech - A
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Soil Listing (all nodes)
Area Soil Subcatchment
(sq -ft) Group Numbers
0
HSG A
3,252,245
HSG B 2S, 3S, 6S
0
HSG C
0
HSG D
0
Other
3,252,245
TOTAL AREA

2019-5-7 21867 - Stormtech - A
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Page 4
Ground Covers (all nodes)
HSG -A
HSG -B
HSG -C
HSG -D Other
Total
Ground Sub
(sq -ft)
(sq -ft)
(sq -ft)
(sq -ft) (sq -ft)
(sq -ft)
Cover Nun
0
2,423,963
0
0 0
2,423,963
>75% Grass
cover, Good
0
828,282
0
0 0
828,282
Paved parking
0
3,252,245
0
0 0
3,252,245
TOTAL AREA

2019-5-7 21867 - Stormtech - A
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Pipe Listing (all nodes)
Line# Node In -Invert Out -Invert Length Slope n Diam/Width Height Inside -Fill
Number (feet) (feet) (feet) (ft/ft) (inches) (inches) (inches)
1 4P 2,104.78 2,104.27 32.0 0.0159 0.013 18.0 0.0 0.0

2019-5-7_21867 - Stormtech - A Type 1124 -hr 2 -year Rainfall=2.68"
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Time span=1.00-24.00 hrs, dt=0.05 hrs, 461 points
Runoff by SCS TR -20 method, UH=SCS, Weighted -CN
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Subcatchment2S: POST DEV Runoff Area=97,915 sf Runoff Depth>1.39"
Flow Length=1,554' Tc=5.0 min CN=86 Runoff=5.62 cfs 11,347 cf
Subcatchment3S: BYPASS Runoff Area=1,530,891 sf Runoff Depth>0.54"
Tc=5.0 min CN=70 Runoff=31.48 cfs 69,295 cf
Subcatchment6S: PRE DEVELOPMENT RunoffArea=1,623,439 sf Runoff Depth>0.54"
Tc=0.0 min CN=70 Runoff=39.36 cfs 73,590 cf
Pond 4P: Underground Storage Peak Elev=2,108.48' Storage=3,495 cf Inflow=5.62 cfs 11,347 cf
Outflow=3.18 cfs 11,265 cf
Link 5L: Combined Inflow=32.87 cfs 80,560 cf
Primary=32.87 cfs 80,560 cf
Total Runoff Area = 3,252,245 sf Runoff Volume = 154,233 cf Average Runoff Depth = 0.57"

2019-5-7_21867 - Stormtech - A Type 1124 -hr 2 -year Rainfall=2.68"
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Summary for Subcatchment 2S: POST DEV
[49] Hint: Tc<2dt may require smaller dt
Runoff = 5.62 cfs @ 11.96 hrs, Volume= 11,347 cf, Depth> 1.39"
Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs
Type II 24 -hr 2 -year Rainfall=2.68"
Area (sf) CN Description
64,926 98 Paved parking, HSG B
32,989 61 >75% Grass cover, Good, HSG B
97,915 86 Weighted Average
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 1,554 5.18 Direct Entry,
4
U
0 3
LL
Subcatchment 2S: POST DEV
Hydrograph
I --I I L
5.62 cfs
Tple I` 214 -lir
1 72 -year rainfall=2 "
1
Runoff 4re;3=97 9115 4f
Runoff Volumg=11,3417 cif
1 Runoff Dept 1 1.39"
Flow Le ii g h-1,�5'
IT6=51.0 in i h
PNI=815
fi l ' -4
STI INTI
I I I I
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)
■Runoff

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Summary for Subcatchment 3S: BYPASS
[49] Hint: Tc<2dt may require smaller dt
Runoff = 31.48 cfs @ 11.98 hrs, Volume= 69,295 cf, Depth> 0.54"
Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs
Type II 24 -hr 2 -year Rainfall=2.68"
Area (sf) CN Description
1,149,213 61 >75% Grass cover, Good, HSG B
381,678 98 Paved parking, HSG B
1,530,891 70 Weighted Average
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment 3S: BYPASS
Hydrograph
��� I�� I I � � I I�� I I�� I I� ■Runoff
31.48 cfs
32
I-
30
28
I�T�I�TI
26
11
T
r- I—I
T-
r -I
24
22
I�
+
+
�I—
i

2019-5-7_21867 - Stormtech - A Type 1124 -hr 2 -year Rainfall=2.68"
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Summary for Subcatchment 6S: PRE DEVELOPMENT
[46] Hint: Tc=O (Instant runoff peak depends on dt)
Runoff = 39.36 cfs @ 11.90 hrs, Volume= 73,590 cf, Depth> 0.54"
Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs
Type II 24 -hr 2 -year Rainfall=2.68"
Area (sf) CN Description
1,241,761 61 >75% Grass cover, Good, HSG B
381,678 98 Paved parking, HSG B
1,623,439 70 Weighted Average
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)
■Runoff
Subcatchment 6S: PRE DEVELOPMENT
Hydrograph
44
I�
�I::1
1
E:1::1
1
E:1::1 1 I I I E 1::1
42
40
38pe
39.36
-
cfs
- fly I i 24� r
1 �
+
I
+
1 -
-J 2�e�r kainfall�216'.
3a
22
rt
- -
-I�1°f�Alreo--1 R343�9--�f
28
1 �
I°V31If
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26
24
—
— Runoff -Dep th>0.54••
020
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X18
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10
8
1�
4
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6
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)
■Runoff

2019-5-7_21867 - Stormtech - A Type 1124 -hr 2 -year Rainfall=2.68"
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Summary for Pond 4P: Underground Storage A
Inflow Area =
97,915 sf,
Inflow Depth > 1.39"
for 2 -year event
Inflow =
5.62 cfs @
11.96 hrs, Volume=
11,347 cf
Outflow =
3.18 cfs @
12.05 hrs, Volume=
11,265 cf, Atten= 43%, Lag= 5.7 min
Primary =
3.18 cfs @
12.05 hrs, Volume=
11,265 cf
Routing by Stor-Ind method, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs / 3
Peak Elev= 2,108.48' @ 12.05 hrs Surf.Area= 1,520 sf Storage= 3,495 cf
Plug -Flow detention time= 38.2 min calculated for 11,265 cf (99% of inflow)
Center -of -Mass det. time= 33.8 min ( 859.6 - 825.8 )
Volume Invert Avail.Storage Storage Description
#1A 2,104.78' 2,995 cf 28.50'W x 53.32'L x 6.75'H Field A
10,257 cf Overall - 2,770 cf Embedded = 7,487 cf x 40.0% Voids
#2A 2,105.53' 2,770 cf ADS _StormTech MC -4500 +Cap x 24 Inside #1
Effective Size= 90.4"W x 60.0"H => 26.46 sf x 4.03'L = 106.5 cf
Overall Size= 100.0"W x 60.0"H x 4.33'L with 0.31' Overlap
3 Rows of 8 Chambers
Cap Storage= +35.7 cf x 2 x 3 rows = 214.2 cf
5,765 cf Total Available Storage
Storage Group A created with Chamber Wizard
Device Routing Invert Outlet Devices
#1
Primary
2,104.78'
18.0" Round Culvert
L= 32.0' CMP, square edge headwall, Ke= 0.500
Inlet/ Outlet Invert= 2,104.78'/2,104.27' S=0.0159'/' Cc= 0.900
n=0.013 Corrugated PE, smooth interior, Flow Area= 1.77 sf
#2
Device 1
2,104.78'
4.0" Vert. Orifice/Grate C= 0.600
#3
Device 1
2,108.03'
30.0" W x 6.0" H Vert. Orifice/Grate C= 0.600
#4
Device 1
2,110.78'
6.0' long Sharp -Crested Rectangular Weir 2 End Contraction(s)
Primary OutFlow Max=3.12 cfs @ 12.05 hrs HW=2,108.47' (Free Discharge)
L1=Culvert (Passes 3.12 cfs of 14.59 cfs potential flow)
12=Orifi ce/G rate (Orifice Controls 0.79 cfs @ 9.04 fps)
3=Orifice/Grate (Orifice Controls 2.33 cfs @ 2.13 fps)
4=Sharp-Crested Rectangular Weir( Controls 0.00 cfs)

2019-5-7_21867 - Stormtech - A Type 1124 -hr 2 -year Rainfall=2.68"
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Pond 4P: Underground Storage A - Chamber Wizard Field A
Chamber Model = ADS_StormTech MC -4500 +Cap (ADS StormTech® MC -4500 with end caps)
Effective Size= 90.4"W x 60.0"H => 26.46 sf x 4.03'L = 106.5 cf
Overall Size= 100.0"W x 60.0"H x 4.33'L with 0.31' Overlap
Cap Storage= +35.7 cf x 2 x 3 rows = 214.2 cf
100.0" Wide + 9.0" Spacing = 109.0" C -C Row Spacing
8 Chambers/Row x 4.02' Long +2.56' Cap Length x 2 = 37.32' Row Length +96.0" End Stone x 2 = 53.32'
Base Length
3 Rows x 100.0" Wide + 9.0" Spacing x 2 + 12.0" Side Stone x 2 = 28.50' Base Width
9.0" Base + 60.0" Chamber Height + 12.0" Cover = 6.75' Field Height
24 Chambers x 106.5 cf + 35.7 cf Cap Volume x 2 x 3 Rows = 2,770.0 cf Chamber Storage
10,256.8 cf Field - 2,770.0 cf Chambers = 7,486.8 cf Stone x 40.0% Voids = 2,994.7 cf Stone Storage
Chamber Storage + Stone Storage = 5,764.7 cf = 0.132 of
Overall Storage Efficiency = 56.2%
24 Chambers
379.9 cy Field
277.3 cy Stone
000

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Pond 4P: Underground Storage A
Hydrograph
5.62 cfs � ❑Primary
6 _ Ir fl�v� Area -91,616 sof
5 IP�ak biev=�2,1168.46'
Iti�ra�d�,95
Cf
4
U
0 3
LL
4
2
1
1 1 1
fl
■�IR��Ia�
T � I
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)

2019-5-7_21867 - Stormtech - A Type 1124 -hr 2 -year Rainfall=2.68"
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Summary for Link 5L: Combined
Inflow Area = 1,628,806 sf, Inflow Depth > 0.59" for 2 -year event
Inflow = 32.87 cfs @ 11.98 hrs, Volume= 80,560 cf
Primary = 32.87 cfs @ 11.98 hrs, Volume= 80,560 cf, Atten= 0%, Lag= 0.0 min
Primary outflow = Inflow, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs
Link 5L: Combined
Hydrograph
❑Inflow
32.87
cfs_
Inflow
Area+=1,628,1806
36
sf
❑Primary
34
32
30
-SII+T4-
_
28-
�-4
4- 1-1
4
266
24
i
22.
20
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3 18
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14
12
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11
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0
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8
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1 4
6
d
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I I
I
I
Link 5L: Combined
Hydrograph
❑Inflow
32.87
cfs_
Inflow
Area+=1,628,1806
sf
❑Primary
-SII+T4-
4
H
+
I�
1 11 12 13 14 15 16 17 18 19 20 21 22 23 24

2019-5-7_21867 - Stormtech - A Type 1124 -hr 10 -year Rainfall=3.81 "
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Time span=1.00-24.00 hrs, dt=0.05 hrs, 461 points
Runoff by SCS TR -20 method, UH=SCS, Weighted -CN
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Subcatchment2S: POST DEV Runoff Area=97,915 sf Runoff Depth>2.37"
Flow Length=1,554' Tc=5.0 min CN=86 Runoff=9.42 cfs 19,362 cf
Subcatchment3S: BYPASS RunoffArea=1,530,891 sf Runoff Depth>1.20"
Tc=5.0 min CN=70 Runoff=75.11 cfs 153,490 cf
Subcatchment6S: PRE DEVELOPMENT RunoffArea=1,623,439 sf Runoff Depth>1.20"
Tc=0.0 min CN=70 Runoff=92.34 cfs 162,962 cf
Pond 4P: Underground Storage Peak Elev=2,109.48' Storage=4,397 cf Inflow=9.42 cfs 19,362 cf
Outflow=7.47 cfs 19,256 cf
Link 5L: Combined Inflow=82.08 cfs 172,746 cf
Primary=82.08 cfs 172,746 cf
Total Runoff Area = 3,252,245 sf Runoff Volume = 335,814 cf Average Runoff Depth = 1.24"

2019-5-7_21867 - Stormtech - A Type 1124 -hr 10 -year Rainfall=3.81 "
Prepared by {enter your company name here) Printed 5/10/2019
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Summary for Subcatchment 2S: POST DEV
[49] Hint: Tc<2dt may require smaller dt
Runoff = 9.42 cfs @ 11.96 hrs, Volume= 19,362 cf, Depth> 2.37"
Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs
Type II 24 -hr 10 -year Rainfall=3.81"
Area (sf) CN Description
64,926 98 Paved parking, HSG B
32,989 61 >75% Grass cover, Good, HSG B
97,915 86 Weighted Average
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 1,554 5.18 Direct Entry,
F
3
0
LL
0
Subcatchment 2S: POST DEV
Hydrograph
- I- Type I` 21 r
-AO--yei r kainfall-3184"
�RuoofjfArep=97,9-115-4f
RfunoTV�Iu mp 9�612sf
I�
Runoff
1..
2.37
ilolvvLe g h-1,54'
-1 T —TC=5.0 rain
l l l l i i PNI=816
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)
■ Runoff

2019-5-7_21867 - Stormtech - A Type 1124 -hr 10 -year Rainfall=3.81 "
Prepared by {enter your company name here) Printed 5/10/2019
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Summary for Subcatchment 3S: BYPASS
[49] Hint: Tc<2dt may require smaller dt
Runoff = 75.11 cfs @ 11.97 hrs, Volume= 153,490 cf, Depth> 1.20"
Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs
Type II 24 -hr 10 -year Rainfall=3.81"
Area (sf) CN Description
1,149,213 61 >75% Grass cover, Good, HSG B
381,678 98 Paved parking, HSG B
1,530,891 70 Weighted Average
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
U
3
0
LL
Subcatchment 3S: BYPASS
Hydrograph
_ —1 T I_ -iy�e i -21"r
--� 1 "- 441 Rii nfaI [-31.811"
R�no�ff /krea:�1,530,8�1�f
rof -v�w �=153,4. f
�U-nO epth�'I.
-:-
1 -1 1- 1 1 -1 T6=�.O lm-iln
I I��4-TIO
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)
■Runoff
—1
T
F1-1
T
q75.
F
T
II
LU
t
I I
�-I� ,
_ —1 T I_ -iy�e i -21"r
--� 1 "- 441 Rii nfaI [-31.811"
R�no�ff /krea:�1,530,8�1�f
rof -v�w �=153,4. f
�U-nO epth�'I.
-:-
1 -1 1- 1 1 -1 T6=�.O lm-iln
I I��4-TIO
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)
■Runoff

2019-5-7_21867 - Stormtech - A Type 1124 -hr 10 -year Rainfall=3.81 "
Prepared by {enter your company name here) Printed 5/10/2019
HydroCADO 10.00-12 s/n 04679 © 2014 HydroCAD Software Solutions LLC Page 17
Summary for Subcatchment 6S: PRE DEVELOPMENT
[46] Hint: Tc=O (Instant runoff peak depends on dt)
Runoff = 92.34 cfs @ 11.90 hrs, Volume= 162,962 cf, Depth> 1.20"
Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs
Type II 24 -hr 10 -year Rainfall=3.81"
Area (sf) CN Description
1,241,761 61 >75% Grass cover, Good, HSG B
381,678 98 Paved parking, HSG B
1,623,439 70 Weighted Average
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)
❑ Runoff
Subcatchment 6S: PRE DEVELOPMENT
Hydrograph
100
95
-
-
-
-
92.34
- - -fy� 124-1�r
cfs
85
I�
1
I -f
i-1
I _I
I-AO�y6wrlR�in�11 -3 8W
I -j
t 1
I --ft
1-1
-
- �up°� �rea� ,�3b�9 �
7o
65
60
- ��°7?no1u-7—
ff�e pP�tI.2
F
55
0 50
Z
1 71
T
- Z L 1 ZTd 1mi
LL 45
40
—
1�
-4-1
—_
1-1 L1 IA -0
35
30
I�
1
4- 1
1 -I
- I I �-
25
15
10 ,
—
—
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)
❑ Runoff

2019-5-7_21867 - Stormtech - A Type 1124 -hr 10 -year Rainfall=3.81 "
Prepared by {enter your company name here) Printed 5/10/2019
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Summary for Pond 4P: Underground Storage A
Inflow Area =
97,915 sf,
Inflow Depth > 2.37"
for 10 -year event
Inflow =
9.42 cfs @
11.96 hrs, Volume=
19,362 cf
Outflow =
7.47 cfs @
12.01 hrs, Volume=
19,256 cf, Atten= 21 %, Lag= 3.1 min
Primary =
7.47 cfs @
12.01 hrs, Volume=
19,256 cf
Routing by Stor-Ind method, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs / 3
Peak Elev= 2,109.48' @ 12.01 hrs Surf.Area= 1,520 sf Storage= 4,397 cf
Plug -Flow detention time= 31.3 min calculated for 19,256 cf (99% of inflow)
Center -of -Mass det. time= 28.0 min ( 838.6 - 810.6 )
Volume Invert Avail.Storage Storage Description
#1A 2,104.78' 2,995 cf 28.50'W x 53.32'L x 6.75'H Field A
10,257 cf Overall - 2,770 cf Embedded = 7,487 cf x 40.0% Voids
#2A 2,105.53' 2,770 cf ADS _StormTech MC -4500 +Cap x 24 Inside #1
Effective Size= 90.4"W x 60.0"H => 26.46 sf x 4.03'L = 106.5 cf
Overall Size= 100.0"W x 60.0"H x 4.33'L with 0.31' Overlap
3 Rows of 8 Chambers
Cap Storage= +35.7 cf x 2 x 3 rows = 214.2 cf
5,765 cf Total Available Storage
Storage Group A created with Chamber Wizard
Device Routing Invert Outlet Devices
#1
Primary
2,104.78'
18.0" Round Culvert
L= 32.0' CMP, square edge headwall, Ke= 0.500
Inlet/ Outlet Invert= 2,104.78'/2,104.27' S=0.0159'/' Cc= 0.900
n=0.013 Corrugated PE, smooth interior, Flow Area= 1.77 sf
#2
Device 1
2,104.78'
4.0" Vert. Orifice/Grate C= 0.600
#3
Device 1
2,108.03'
30.0" W x 6.0" H Vert. Orifice/Grate C= 0.600
#4
Device 1
2,110.78'
6.0' long Sharp -Crested Rectangular Weir 2 End Contraction(s)
Primary OutFlow Max=7.37 cfs @ 12.01 hrs HW=2,109.44' (Free Discharge)
L1=Culvert (Passes 7.37 cfs of 16.83 cfs potential flow)
12=Orifi ce/G rate (Orifice Controls 0.89 cfs @ 10.21 fps)
3=Orifice/Grate (Orifice Controls 6.48 cfs @ 5.18 fps)
4=Sharp-Crested Rectangular Weir( Controls 0.00 cfs)

2019-5-7_21867 - Stormtech - A Type 1124 -hr 10 -year Rainfall=3.81 "
Prepared by {enter your company name here) Printed 5/10/2019
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Pond 4P: Underground Storage A - Chamber Wizard Field A
Chamber Model = ADS_StormTech MC -4500 +Cap (ADS StormTech® MC -4500 with end caps)
Effective Size= 90.4"W x 60.0"H => 26.46 sf x 4.03'L = 106.5 cf
Overall Size= 100.0"W x 60.0"H x 4.33'L with 0.31' Overlap
Cap Storage= +35.7 cf x 2 x 3 rows = 214.2 cf
100.0" Wide + 9.0" Spacing = 109.0" C -C Row Spacing
8 Chambers/Row x 4.02' Long +2.56' Cap Length x 2 = 37.32' Row Length +96.0" End Stone x 2 = 53.32'
Base Length
3 Rows x 100.0" Wide + 9.0" Spacing x 2 + 12.0" Side Stone x 2 = 28.50' Base Width
9.0" Base + 60.0" Chamber Height + 12.0" Cover = 6.75' Field Height
24 Chambers x 106.5 cf + 35.7 cf Cap Volume x 2 x 3 Rows = 2,770.0 cf Chamber Storage
10,256.8 cf Field - 2,770.0 cf Chambers = 7,486.8 cf Stone x 40.0% Voids = 2,994.7 cf Stone Storage
Chamber Storage + Stone Storage = 5,764.7 cf = 0.132 of
Overall Storage Efficiency = 56.2%
24 Chambers
379.9 cy Field
277.3 cy Stone
000

2019-5-7_21867 - Stormtech - A Type 1124 -hr 10 -year Rainfall=3.81 "
Prepared by {enter your company name here) Printed 5/10/2019
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Pond 4P: Underground Storage A
Hydrograph
L I—i L I L I —t L I Inflow
�� I I I I 9.42 cfs I I � [I Primary
'° Ir�fl�v�i�►rea�9�,�1 �s�
9 14 --1 I -tP�ak-ti�--V=�2! rb946r
8 I—t t -I I� 7.47 cfs 1�tolra+ge=4,197 -Cf
7
i i i—iii 4i-
-t
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)

2019-5-7_21867 - Stormtech - A Type 1124 -hr 10 -year Rainfall=3.81 "
Prepared by {enter your company name here) Printed 5/10/2019
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Summary for Link 5L: Combined
Inflow Area = 1,628,806 sf, Inflow Depth > 1.27" for 10 -year event
Inflow = 82.08 cfs @ 11.97 hrs, Volume= 172,746 cf
Primary = 82.08 cfs @ 11.97 hrs, Volume= 172,746 cf, Atten= 0%, Lag= 0.0 min
Primary outflow = Inflow, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs
Link 5L: Combined
Hydrograph
1, 82.08 cfs
bU
55
-1-
1I+
50
/
-
-1-4
-1-
1
45
1
4-
�° 40 /
11
4
35
30
-I4
1I+
1 4
1
25
4
-I4
11+
20
I�
1 4
15
10
1
J
Inflow Area=1,628,1806 sf
-4
-1-
1I+
I-41-
-
-1-4
-1-
1
I +
1
4-
-I4
1I+
1
—4
4
-I4
11+
1�'
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)
❑ Inflow
❑ Primary

2019-5-7_21867 - Stormtech - A Type 1124 -hr 50 -year Rainfall=5.06"
Prepared by {enter your company name here) Printed 5/10/2019
HydroCAD® 10.00-12 s/n 04679 @2014 HydroCAD Software Solutions LLC Page 22
Time span=1.00-24.00 hrs, dt=0.05 hrs, 461 points
Runoff by SCS TR -20 method, UH=SCS, Weighted -CN
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Subcatchment2S: POST DEV Runoff Area=97,915 sf Runoff Depth>3.52"
Flow Length=1,554' Tc=5.0 min CN=86 Runoff=13.70 cfs 28,724 cf
Subcatchment3S: BYPASS RunoffArea=1,530,891 sf Runoff Depth>2.08"
Tc=5.0 min CN=70 Runoff=131.76 cfs 265,194 cf
Subcatchment6S: PRE DEVELOPMENT RunoffArea=1,623,439 sf Runoff Depth>2.08"
Tc=0.0 min CN=70 Runoff=160.25 cfs 281,520 cf
Pond 4P: Underground Storage Peak Elev=2,110.92' Storage=5,394 cf Inflow=13.70 cfs 28,724 cf
0utflow=11.83 cfs 28,585 cf
Link 5L: Combined Inflow=141.98 cfs 293,778 cf
Primary=141.98 cfs 293,778 cf
Total Runoff Area = 3,252,245 sf Runoff Volume = 575,438 cf Average Runoff Depth = 2.12"

2019-5-7_21867 - Stormtech - A Type 1124 -hr 50 -year Rainfall=5.06"
Prepared by {enter your company name here) Printed 5/10/2019
HydroCADO 10.00-12 s/n 04679 © 2014 HydroCAD Software Solutions LLC Page 23
Summary for Subcatchment 2S: POST DEV
[49] Hint: Tc<2dt may require smaller dt
Runoff = 13.70 cfs @ 11.95 hrs, Volume= 28,724 cf, Depth> 3.52"
Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs
Type II 24 -hr 50 -year Rainfall=5.06"
Area (sf) CN Description
64,926 98 Paved parking, HSG B
32,989 61 >75% Grass cover, Good, HSG B
97,915 86 Weighted Average
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 1,554 5.18 Direct Entry,
Subcatchment 2S: POST DEV
Hydrograph
15-
L
14
J
1
L
I
13
12
+
+
I�
10
9
I-1
T
F— I7
T
0
I
7
LL
6-/ 1
1 1
1
1 1
F
I I I I I I I I I I I
13.70 cfs I_ --1 1
iypl 141 r
-v0-year k—alinfa1165106"
-Ru rAofrf 4r":: 97; 91 p5.�f
-Iu�off-V"n,?=2872"f
RurroffDep#h>3.52"
_ jlo�v e g�h11,�54'
V l 51
ITc.4 hnih
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)
■Runoff

2019-5-7_21867 - Stormtech - A Type 1124 -hr 50 -year Rainfall=5.06"
Prepared by {enter your company name here) Printed 5/10/2019
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Summary for Subcatchment 3S: BYPASS
[49] Hint: Tc<2dt may require smaller dt
Runoff = 131.76 cfs @ 11.96 hrs, Volume= 265,194 cf, Depth> 2.08"
Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs
Type II 24 -hr 50 -year Rainfall=5.06"
Area (sf) CN Description
1,149,213 61 >75% Grass cover, Good, HSG B
381,678 98 Paved parking, HSG B
1,530,891 70 Weighted Average
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
w
0
LL
IE
0
Subcatchment 3S: BYPASS
Hydrograph
-t t I I iyi�i iI 24-�r
I I—tO�yaarlRai nfal1 *LOt'
Rupoff �-rela=J,530,891 -!�#
R�rnoff V� to265,1914
l�unoep�h'>.0
—Irt fi l -tT�-=- 6A lm-iwrn
I Irt fil Irt �I Irt
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)
❑Runoff
I —i
t
I --tt
131.76 cfs
I�
� IIS
fi II -I
-�I
1-tJ-I
I
-t t I I iyi�i iI 24-�r
I I—tO�yaarlRai nfal1 *LOt'
Rupoff �-rela=J,530,891 -!�#
R�rnoff V� to265,1914
l�unoep�h'>.0
—Irt fi l -tT�-=- 6A lm-iwrn
I Irt fil Irt �I Irt
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)
❑Runoff

2019-5-7_21867 - Stormtech - A Type 1124 -hr 50 -year Rainfall=5.06"
Prepared by {enter your company name here) Printed 5/10/2019
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Summary for Subcatchment 6S: PRE DEVELOPMENT
[46] Hint: Tc=O (Instant runoff peak depends on dt)
Runoff = 160.25 cfs @ 11.89 hrs, Volume= 281,520 cf, Depth> 2.08"
Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs
Type II 24 -hr 50 -year Rainfall=5.06"
Area (sf) CN Description
1,241,761 61 >75% Grass cover, Good, HSG B
381,678 98 Paved parking, HSG B
1,623,439 70 Weighted Average
Subcatchment 6S: PRE DEVELOPMENT
Hydrograph
❑ Runoff
160
1
T I
i
T
150
1 —1+
L
140
130
120
110
1 —4
4-
100 100
3 9o1
�
4-
0 80
70
L L
L
60
50
40
30
20
—1
t
I
10
160.25 cfs
iy� 11244r
1-1 rt5&y- 6arA-Mnfal1—=-5L0V'
I�up°-ff"lamj,q23b419-�f
I � f gn 7MOt�hP>2I 0 '.
II L LI L L ON =TO
1 1—F LI I7 F 17 7
I I Irt LI Irt �I
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)

2019-5-7_21867 - Stormtech - A Type 1124 -hr 50 -year Rainfall=5.06"
Prepared by {enter your company name here) Printed 5/10/2019
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Summary for Pond 4P: Underground Storage A
Inflow Area =
97,915 sf,
Inflow Depth > 3.52"
for 50 -year event
Inflow =
13.70 cfs @
11.95 hrs, Volume=
28,724 cf
Outflow =
11.83 cfs @
12.00 hrs, Volume=
28,585 cf, Atten= 14%, Lag= 2.8 min
Primary =
11.83 cfs @
12.00 hrs, Volume=
28,585 cf
Routing by Stor-Ind method, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs / 3
Peak Elev= 2,110.92' @ 12.00 hrs Surf.Area= 1,520 sf Storage= 5,394 cf
Plug -Flow detention time= 28.6 min calculated for 28,585 cf (100% of inflow)
Center -of -Mass det. time= 25.5 min ( 825.0 - 799.5 )
Volume Invert Avail.Storage Storage Description
#1A 2,104.78' 2,995 cf 28.50'W x 53.32'L x 6.75'H Field A
10,257 cf Overall - 2,770 cf Embedded = 7,487 cf x 40.0% Voids
#2A 2,105.53' 2,770 cf ADS _StormTech MC -4500 +Cap x 24 Inside #1
Effective Size= 90.4"W x 60.0"H => 26.46 sf x 4.03'L = 106.5 cf
Overall Size= 100.0"W x 60.0"H x 4.33'L with 0.31' Overlap
3 Rows of 8 Chambers
Cap Storage= +35.7 cf x 2 x 3 rows = 214.2 cf
5,765 cf Total Available Storage
Storage Group A created with Chamber Wizard
Device Routing Invert Outlet Devices
#1
Primary
2,104.78'
18.0" Round Culvert
L= 32.0' CMP, square edge headwall, Ke= 0.500
Inlet/ Outlet Invert= 2,104.78'/2,104.27' S=0.0159'/' Cc= 0.900
n=0.013 Corrugated PE, smooth interior, Flow Area= 1.77 sf
#2
Device 1
2,104.78'
4.0" Vert. Orifice/Grate C= 0.600
#3
Device 1
2,108.03'
30.0" W x 6.0" H Vert. Orifice/Grate C= 0.600
#4
Device 1
2,110.78'
6.0' long Sharp -Crested Rectangular Weir 2 End Contraction(s)
Primary OutFlow Max=11.77 cfs @ 12.00 hrs HW=2,110.92' (Free Discharge)
L1=Culvert (Passes 11.77 cfs of 19.75 cfs potential flow)
12=Orifi ce/G rate (Orifice Controls 1.03 cfs @ 11.76 fps)
3=Orifice/Grate (Orifice Controls 9.77 cfs @ 7.81 fps)
4=Sharp-Crested Rectangular Weir (Weir Controls 0.98 cfs @ 1.21 fps)

2019-5-7_21867 - Stormtech - A Type 1124 -hr 50 -year Rainfall=5.06"
Prepared by {enter your company name here) Printed 5/10/2019
HydroCADO 10.00-12 s/n 04679 © 2014 HydroCAD Software Solutions LLC Page 27
Pond 4P: Underground Storage A - Chamber Wizard Field A
Chamber Model = ADS_StormTech MC -4500 +Cap (ADS StormTech® MC -4500 with end caps)
Effective Size= 90.4"W x 60.0"H => 26.46 sf x 4.03'L = 106.5 cf
Overall Size= 100.0"W x 60.0"H x 4.33'L with 0.31' Overlap
Cap Storage= +35.7 cf x 2 x 3 rows = 214.2 cf
100.0" Wide + 9.0" Spacing = 109.0" C -C Row Spacing
8 Chambers/Row x 4.02' Long +2.56' Cap Length x 2 = 37.32' Row Length +96.0" End Stone x 2 = 53.32'
Base Length
3 Rows x 100.0" Wide + 9.0" Spacing x 2 + 12.0" Side Stone x 2 = 28.50' Base Width
9.0" Base + 60.0" Chamber Height + 12.0" Cover = 6.75' Field Height
24 Chambers x 106.5 cf + 35.7 cf Cap Volume x 2 x 3 Rows = 2,770.0 cf Chamber Storage
10,256.8 cf Field - 2,770.0 cf Chambers = 7,486.8 cf Stone x 40.0% Voids = 2,994.7 cf Stone Storage
Chamber Storage + Stone Storage = 5,764.7 cf = 0.132 of
Overall Storage Efficiency = 56.2%
24 Chambers
379.9 cy Field
277.3 cy Stone
000

2019-5-7_21867 - Stormtech - A Type 1124 -hr 50 -year Rainfall=5.06"
Prepared by {enter your company name here) Printed 5/10/2019
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N
U
3
0
LL
1E
14
12
12
11
1C
IL
Pond 4P: Underground Storage A
Hydrograph
I � —r �— I + e Inflow
13.70 cfs ❑Primary
hr fl"-A'rea19i,41 �-s�-
1 -7
71-1
—F T—
11.83 cfs
1-4
4- 11
-+
-tLI
1
2 3 4 5 6 7 8 9 10 11 12 13 14
Time (hours)
-TP""Il i -r - 11-iO.Tkl
-+ +-8torabe*6,194-c►-
I -+ L 1—I I L_ I -i L I—
. r Irtr- l -T -rl
4 1 1
I L I
rIlrtr- l�fi
17 18 19 20 21 22 23 24

2019-5-7_21867 - Stormtech - A Type 1124 -hr 50 -year Rainfall=5.06"
Prepared by {enter your company name here) Printed 5/10/2019
HydroCAD® 10.00-12 s/n 04679 @2014 HydroCAD Software Solutions LLC Page 29
Summary for Link 5L: Combined
Inflow Area = 1,628,806 sf, Inflow Depth > 2.16" for 50 -year event
Inflow = 141.98 cfs @ 11.96 hrs, Volume= 293,778 cf
Primary = 141.98 cfs @ 11.96 hrs, Volume= 293,778 cf, Atten= 0%, Lag= 0.0 min
Primary outflow = Inflow, Time Span= 1.00-24.00 hrs, dt= 0.05 hrs
Link 5L: Combined
Hydrograph
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time (hours)
F11-1 nflow
❑ Primary

NRCS Soil Report:

USDA United States
Department of
Agriculture
N RCS
Natural
Resources
Conservation
Service
A product of the National
Cooperative Soil Survey,
a joint effort of the United
States Department of
Agriculture and other
Federal agencies, State
agencies including the
Agricultural Experiment
Stations, and local
participants
Custom Soil Resource
Report for
Buncombe County,
North Carolina
March 29, 2019

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.nres.usda.gov/wps/
portal/nres/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=nres) or your NRCS State Soil
Scientist (http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/?
cid=nres142p2_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 [phone] (TDD). USDA is an equal opportunity
provider and employer.
3

Contents
Preface.................................................................................................................... 2
SoilMap.................................................................................................................. 5
SoilMap................................................................................................................6
Legend..................................................................................................................7
MapUnit Legend.................................................................................................. 8
MapUnit Descriptions.......................................................................................... 8
Buncombe County, North Carolina................................................................. 10
CkB2—Clifton clay loam, 2 to 8 percent slopes, moderately eroded.......... 10
CkC2—Clifton clay loam, 8 to 15 percent slopes, moderately eroded........ 10
EvD2—Evard-Cowee complex, 15 to 30 percent slopes, moderately
eroded...................................................................................................11
ExD—Evard-Cowee-Urban land complex, 15 to 30 percent slopes ............ 14
TmD—Tate-Urban land complex, 15 to 30 percent slopes ..........................16
UhE—Udorthents-Urban land complex, 2 to 50 percent slopes..................17
Ux—Urban land...........................................................................................18
4

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.
5

3
N
W
353940
35° 35'43" N
Custom Soil Resource Report
Soil Map
353990 354040 354090 354140 354190 354240
Ljiii�soil Map n
35° 35' 32" N
353940 353990 354040 354090 354140 354190
3
Map Scale: 1:2,370 W printed on A landscape (11" x 8.5") sheet.
M Meters
N 0 35 70 140 210
Feet
0 100 200 400 600
Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 17N WGS84
6
354290 354340
1 1
354240 354290 354340
N
W
35o 35'47N
rS
yy I
�v
f �1
35° 35' 32" N
354390 354440
3
o�

MAP LEGEND
Area of Interest (AOI)
0
Area of Interest (AOI)
Soils
0
Soil Map Unit Polygons
im 0
Soil Map Unit Lines
■
Soil Map Unit Points
Special
Point Features
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
.4
Gravelly Spot
0
Landfill
Lava Flow
Marsh or swamp
+
Mine or Quarry
Water Features
Miscellaneous Water
scale.
Perennial Water
Streams and Canals
Rock Outcrop
Saline Spot
Transportation
Sandy Spot
�}}
Severely Eroded Spot
measurements.
Sinkhole
Interstate Highways
Slide or Slip
oa
Sodic Spot
Custom Soil Resource Report
MAP INFORMATION
A
Spoil Area
The soil surveys that comprise your AOI were mapped at
1:12,000.
Stony Spot
Very Stony Spot
Warning: Soil Map may not be valid at this scale.
Wet Spot
Enlargement of maps beyond the scale of mapping can cause
Other
misunderstanding of the detail of mapping and accuracy of soil
.-
Special Line Features
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
Water Features
scale.
-
Streams and Canals
Transportation
Please rely on the bar scale on each map sheet for map
�}}
Rails
measurements.
Interstate Highways
Source of Map: Natural Resources Conservation Service
US Routes
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Major Roads
Local Roads
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
Background
distance and area. A projection that preserves area, such as the
Aerial Photography
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
7
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Buncombe County, North Carolina
Survey Area Data: Version 15, Sep 10, 2018
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Nov 23, 2011—Nov
28, 2017
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.

Custom Soil Resource Report
Map Unit Legend
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
0
Map Unit Symbol
Map Unit Name
Acres in AOI
Percent of AOI
CkB2
Clifton clay loam, 2 to 8 percent
0.0
0.3%
slopes, moderately eroded
Clifton clay loam, 8 to 15
CkC2
0.0
0.1%
percent slopes, moderately
eroded
EvD2
Evard-Cowee complex, 15 to 30
8.1
69.7%
percent slopes, moderately
eroded
ExD
Evard-Cowee-Urban land
0.7
6.0%
complex, 15 to 30 percent
slopes
TmD
Tate -Urban land complex, 15 to
0.6
5.1%
30 percent slopes
UhE
Udorthents-Urban land
1.2
10.7%
complex, 2 to 50 percent
slopes
Urban land
0.9
8.2%
Ux
Totals for Area of Interest
11.6
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
0

Custom Soil Resource Report
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 Iandforms 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.
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.
0

Custom Soil Resource Report
Buncombe County, North Carolina
CkB2—Clifton clay loam, 2 to 8 percent slopes, moderately eroded
Map Unit Setting
National map unit symbol: 1 t3v0
Elevation: 2,000 to 2,250 feet
Mean annual precipitation: 35 to 50 inches
Mean annual air temperature: 46 to 57 degrees F
Frost -free period: 130 to 180 days
Farmland classification: All areas are prime farmland
Map Unit Composition
Clifton, moderately eroded, and similar soils: 85 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Clifton, Moderately Eroded
Setting
Landform: Ridges
Down-slope shape: Convex
Across -slope shape: Linear
Parent material: Residuum weathered from amphibolite or hornblende gneiss
Typical profile
Ap - 0 to 8 inches: clay loam
Bt - 8 to 55 inches: clay
C - 55 to 80 inches: loam
Properties and qualities
Slope: 2 to 8 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water storage in profile: High (about 10.5 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 2e
Hydrologic Soil Group: B
Hydric soil rating: No
CkU—Clifton clay loam, 8 to 15 percent slopes, moderately eroded
Map Unit Setting
National map unit symbol: 1 t3v2
10

Custom Soil Resource Report
Elevation: 2,000 to 2,250 feet
Mean annual precipitation: 35 to 50 inches
Mean annual air temperature: 46 to 57 degrees F
Frost -free period: 130 to 180 days
Farmland classification: Farmland of statewide importance
Map Unit Composition
Clifton, moderately eroded, and similar soils: 85 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Clifton, Moderately Eroded
Setting
Landform: Ridges
Down-slope shape: Convex
Across -slope shape: Linear
Parent material. Residuum weathered from amphibolite or hornblende gneiss
Typical profile
Ap - 0 to 8 inches: clay loam
Bt - 8 to 55 inches: clay
C - 55 to 80 inches: loam
Properties and qualities
Slope: 8 to 15 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water storage in profile: High (about 10.5 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: B
Hydric soil rating: No
EvD2—Evard-Cowee complex, 15 to 30 percent slopes, moderately
eroded
Map Unit Setting
National map unit symbol: 2vOy7
Elevation: 1,640 to 3,980 feet
Mean annual precipitation: 36 to 51 inches
Mean annual air temperature: 46 to 57 degrees F
Frost -free period: 159 to 176 days
Farmland classification: Farmland of local importance
11

Custom Soil Resource Report
Map Unit Composition
Evard, moderately eroded, and similar soils: 55 percent
Cowee, moderately eroded, and similar soils: 35 percent
Minor components: 10 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Evard, Moderately Eroded
Setting
Landform: Mountain slopes, ridges
Landform position (two-dimensional): Backslope, summit
Landform position (three-dimensional): Upper third of mountainflank, mountaintop,
side slope, crest
Down-slope shape: Convex, linear
Across -slope shape: Linear, convex
Parent material. Residuum weathered from amphibolite and/or hornblende gneiss
Typical profile
Ap - 0 to 5 inches: clay loam
Bt - 5 to 29 inches: sandy clay loam
BC - 29 to 37 inches: sandy loam
C - 37 to 80 inches: sandy loam
Properties and qualities
Slope: 15 to 30 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Well drained
Runoff class: High
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water storage in profile: Moderate (about 8.6 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4e
Hydrologic Soil Group: B
Hydric soil rating: No
Description of Cowee, Moderately Eroded
Setting
Landform: Mountain slopes, ridges
Landform position (two-dimensional): Summit, backslope
Landform position (three-dimensional): Upper third of mountainflank, mountaintop,
side slope, crest
Down-slope shape: Convex, linear
Across -slope shape: Linear, convex
Parent material. Residuum weathered from amphibolite and/or hornblende gneiss
Typical profile
Ap - 0 to 5 inches: clay loam
Bt - 5 to 27 inches: gravelly sandy clay loam
Cr - 27 to 80 inches: bedrock
12

Custom Soil Resource Report
Properties and qualities
Slope: 15 to 30 percent
Depth to restrictive feature: 20 to 40 inches to paralithic bedrock
Natural drainage class: Well drained
Runoff class: High
Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately
high (0.00 to 0.60 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water storage in profile: Low (about 3.9 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4s
Hydrologic Soil Group: C
Hydric soil rating: No
Minor Components
Tate
Percent of map unit. 3 percent
Landform: Toes on coves
Landform position (two-dimensional):
Landform position (three-dimensional).
Down-slope shape: Concave, linear
Across -slope shape: Concave
Hydric soil rating: No
Chestnut, moderately eroded
Percent of map unit. 3 percent
Landform: Mountain slopes, ridges
Landform position (two-dimensional):
Landform position (three-dimensional).
crest
Down-slope shape: Convex, linear
Across -slope shape: Convex
Hydric soil rating: No
Edneyville, moderately eroded
Percent of map unit. 2 percent
Landform: Mountain slopes, ridges
Landform position (two-dimensional):
Landform position (three-dimensional).
crest
Down-slope shape: Convex, linear
Across -slope shape: Convex
Hydric soil rating: No
Clifton, moderately eroded
Percent of map unit. 2 percent
Landform: Hillslopes, ridges
Landform position (two-dimensional):
Landform position (three-dimensional).
Down-slope shape: Convex
Across -slope shape: Linear
13
Footslope
Mountainbase, base slope
Backslope, summit
Mountainflank, mountaintop, side slope,
Backslope, summit
Mountainflank, mountaintop, side slope,
Backslope, summit
Side slope, interfluve

Custom Soil Resource Report
Hydric soil rating: No
ExD—Evard-Cowee-Urban land complex, 15 to 30 percent slopes
Map Unit Setting
National map unit symbol: 1 t3w2
Elevation: 1,720 to 3,570 feet
Mean annual precipitation: 50 to 60 inches
Mean annual air temperature: 46 to 57 degrees F
Frost -free period: 124 to 176 days
Farmland classification: Not prime farmland
Map Unit Composition
Evard and similar soils: 40 percent
Cowee, stony, and similar soils: 25 percent
Urban land: 20 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Evard
Setting
Landform: Ridges
Landform position (two-dimensional): Summit, shoulder, backslope
Landform position (three-dimensional): Mountaintop, interfluve
Down-slope shape: Linear
Across -slope shape: Convex
Parent material. Residuum weathered from hornblende gneiss and/or amphibolite
Typical profile
A - 0 to 5 inches: clay loam
Bt - 5 to 29 inches: sandy clay loam
BC - 29 to 37 inches: sandy loam
C - 37 to 80 inches: sandy loam
Properties and qualities
Slope: 15 to 30 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Well drained
Runoff class: High
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water storage in profile: Moderate (about 8.3 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4e
14

Custom Soil Resource Report
Hydrologic Soil Group: B
Hydric soil rating: No
Description of Cowee, Stony
Setting
Landform: Ridges
Landform position (two-dimensional): Summit, shoulder, backslope
Landform position (three-dimensional): Mountaintop, interfluve
Down-slope shape: Linear
Across -slope shape: Convex
Parent material: Residuum weathered from hornblende gneiss and/or amphibolite
Typical profile
A - 0 to 5 inches: clay loam
Bt - 5 to 27 inches: gravelly sandy clay loam
Cr - 27 to 80 inches: bedrock
Properties and qualities
Slope: 15 to 30 percent
Percent of area covered with surface fragments: 0.1 percent
Depth to restrictive feature: 20 to 40 inches to paralithic bedrock
Natural drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Very low to high (0.00
to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water storage in profile: Low (about 4.0 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4s
Hydrologic Soil Group: C
Hydric soil rating: No
Description of Urban Land
Setting
Parent material: Streets, parking lots, buildings, and other structures
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 8s
Hydric soil rating: No
Minor Components
Udorthents
Percent of map unit. 9 percent
Landform: Ridges
Landform position (two-dimensional):
Landform position (three-dimensional).
Down-slope shape: Convex, linear
Across -slope shape: Linear, convex
Hydric soil rating: No
15
Summit, shoulder, backslope
Mountaintop, interfluve

Custom Soil Resource Report
Thurmont
Percent of map unit. 6 percent
Landform: Drainageways
Landform position (three-dimensional): Mountainbase, base slope
Down-slope shape: Concave
Across -slope shape: Linear
Hydric soil rating: No
TmD—Tate-Urban land complex, 15 to 30 percent slopes
Map Unit Setting
National map unit symbol: 1 t3yd
Elevation: 2,050 to 2,800 feet
Mean annual precipitation: 45 to 70 inches
Mean annual air temperature: 46 to 57 degrees F
Frost -free period: 124 to 170 days
Farmland classification: Not prime farmland
Map Unit Composition
Tate and similar soils: 50 percent
Urban land: 40 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Tate
Setting
Landform: Stream terraces, benches, fans
Landform position (two-dimensional): Footslope, backslope
Landform position (three-dimensional): Base slope, riser
Down-slope shape: Convex
Across -slope shape: Convex, linear
Parent material. Colluvium derived from igneous and metamorphic rock
Typical profile
A - 0 to 7 inches: loam
Bt - 7 to 46 inches: clay loam
C - 46 to 80 inches: fine sandy loam
Properties and qualities
Slope: 15 to 30 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Well drained
Runoff class: High
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
16

Custom Soil Resource Report
Frequency of ponding: None
Available water storage in profile: High (about 9.9 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4e
Hydrologic Soil Group: B
Hydric soil rating: No
Description of Urban Land
Setting
Parent material. Streets, parking lots, buildings, and other structures
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 8
Hydric soil rating: No
UhE—Udorthents-Urban land complex, 2 to 50 percent slopes
Map Unit Setting
National map unit symbol: 1 t3z0
Elevation: 1,090 to 3,830 feet
Mean annual precipitation: 50 to 64 inches
Mean annual air temperature: 46 to 57 degrees F
Frost -free period: 124 to 176 days
Farmland classification: Not prime farmland
Map Unit Composition
Udorthents and similar soils: 55 percent
Urban land: 35 percent
Minor components: 10 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Udorthents
Setting
Landform position (two-dimensional): Backslope, footslope, toeslope
Down-slope shape: Linear, convex
Across -slope shape: Linear
Parent material. Loamy to skeletal cut and fill
Typical profile
C - 0 to 80 inches: cobbly sandy loam
Properties and qualities
Slope: 2 to 50 percent
Percent of area covered with surface fragments: 0.1 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Somewhat excessively drained
Runoff class: Medium
17

Custom Soil Resource Report
Capacity of the most limiting layer to transmit water (Ksat): Very low to very high
(0.00 to 19.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water storage in profile: Moderate (about 8.4 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 7e
Hydrologic Soil Group: A
Hydric soil rating: No
Description of Urban Land
Setting
Parent material: Streets, parking lots, buildings, and other structures
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 8s
Hydric soil rating: No
Minor Components
Rubble land
Percent of map unit. 10 percent
Hydric soil rating: No
Rock outcrop
Percent of map unit. 0 percent
Hydric soil rating: No
Ux—Urban land
Map Unit Composition
Urban land: 90 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Urban Land
Setting
Parent material. Streets, parking lots, buildings, and other structures
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 8
Hydric soil rating: No
18

Figures:

ME U IS G S
science for a changing world
82°37'30"
35°37'<
394301
35'
32'
660
F
35°30'
U.S. DEPARTMENT OF THE INTERIOR
U.S. GEOLOGICAL SURVEY
The National Map
USTopo Ups.
ASHEVILLE QUADRANGLE
NORTH CAROLINA -BUNCOMBE CO.
7.5 -MINUTE SERIES
35' 32'30" 82°30'
82°37'30"
Produced by the United States Geological Survey
North American Datum of 1983 (NAD83)
World Geodetic System of 1984 (WGS84). Projection and
1000 -meter grid: Universal Transverse Mercator, Zone 17S
10 000 -foot ticks: North Carolina Coordinate System of 1983
This map is not a legal document. Boundaries may be
generalized for this map scale. Private lands within government
reservations may not be shown. Obtain permission before
entering private lands.
Imagery .............................................NAIP,
October
2014
Roads ................................
U.S. Census Bureau, 2015 -
2016
Roads within
US Forest Service Lands.............FSTopo
Data
with limited Forest Service updates, 2012
- 2016
Names...............................................................
G NIS,
2016
Hydrography ....................National
Hydrography Dataset,
2014
Contours............................National
Elevation Dataset,
2008
Boundaries ............
Multiple sources; see metadata file 1972 -
2016
Wetlands ......... FWS National Wetlands Inventory 1977 - 2014
N.
6` 32'
116 MILS
0° 54'
16 MILS
UTM GRID AND 2016 MAGNETIC NORTH
DECLINATION AT CENTER OF SHEET
U.S. National Grid
100,000-m Square ID
LV
r77�.
35' ""
SCALE 1:24 000
"" 32'30"
1 0.5 0 KILOMETERS 1 2
1000 500 0 METERS 1000 2000
1 0.5 0 1
MILES
1000 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
FEET
CONTOUR INTERVAL 20 FEET
NORTH AMERICAN VERTICAL DATUM OF 1988
This map was produced to conform with the
National Geospatial Program US Topo Product Standard, 2011.
A metadata file associated with this product is draft version 0.6.19
1 Leicester
1 2 3 2 Weaverville
3 Craggy Pinnacle
4 5 4 Enka
5 Oteen
6 Dunsmore Mountain
6 7 8 7 Skyland
8 Fruitland
ADJOINING QUADRANGLES
Check with local Forest Service unit
for current travel conditions and restrictions.
ASHEVILLE, NC
2016
°37'30"
X00
LCiII]Y
000m N
°30'
M
O �
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82°30'
ROAD CLASSIFICATION
NORTH Expressway
Local Connector
CAR0" Secondary Hwy
Local Road
Ramp
4WD
• Interstate Route
0 US Route
O State Route
QUADRANGLE LOCATION
FS Primary Route
O FS Passenger
FS High
Route
Clearance Route
1 Leicester
1 2 3 2 Weaverville
3 Craggy Pinnacle
4 5 4 Enka
5 Oteen
6 Dunsmore Mountain
6 7 8 7 Skyland
8 Fruitland
ADJOINING QUADRANGLES
Check with local Forest Service unit
for current travel conditions and restrictions.
ASHEVILLE, NC
2016
°37'30"
X00
LCiII]Y
000m N
°30'
M
O �
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National Flood Hazard Layer FIRMette
35°35'49.22"N
* FEMA
Legend
SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT
I ccs I.U,000
0 250 500 1,000 1,500 2,000
Without Base Flood Elevation (BFE)
Zone A, V, A99
SPECIAL FLOOD With BFE or Depth zone AE, AO, AH. VE, AR
HAZARD AREAS Regulatory Floodway
0.2% Annual Chance Flood Hazard, Areas
of 1% annual chance flood with average
depth less than one foot or with drainage
areas of less than one square mile zone x
%:qv Future Conditions 1% Annual
Chance Flood Hazard zone x
Area with Reduced Flood Risk due to
ITHER AREAS OF Levee. See Notes. zone x
FLOOD HAZARD Area with Flood Risk due to Leveezone D
NO SCREEN Area of Minimal Flood Hazard zone x
Q Effective LOMRs
OTHER AREAS Area of Undetermined Flood Hazard zone D
GENERAL - — - - Channel, Culvert, or Storm Sewer
STRUCTURES I I I I I I Levee, Dike, or Floodwall
Cross Sections with 1% Annual Chance
17•5 Water Surface Elevation
o- - - Coastal Transect
—so— Base Flood Elevation Line (BFE)
Limit of Study
Jurisdiction Boundary
-- --- Coastal Transect Baseline
OTHER _ Profile Baseline
FEATURES Hydrographic Feature
Digital Data Available N
No Digital Data Available
MAP PANELS Unmapped
Q The pin displayed on the map is an approximate
point selected by the user and does not represent
an authoritative property location.
This map complies with FEMA's standards for the use of
digital flood maps if it is not void as described below.
The basemap shown complies with FEMA's basemap
accuracy standards
The flood hazard information is derived directly from the
authoritative NFHL web services provided by FEMA. This map
was exported on 3/29/2019 at 2:32:54 PM and does not
reflect changes or amendments subsequent to this date and
time. The NFHL and effective information may change or
become superseded by new data over time.
This map image is void if the one or more of the following map
elements do not appear: basemap imagery, flood zone labels,
legend, scale bar, map creation date, community identifiers,
FIRM panel number, and FIRM effective date. Map images for
unmapped and unmodernized areas cannot be used for
regulatory purposes.

3/29/2019 Precipitation Frequency Data Server
NOAA Atlas 14, Volume 2, Version 3
' Location name: Asheville, North Carolina, USA*
Latitude: 35.59380, Longitude: -82.6006°
Elevation: 2136.79 ft** - V-A)
* source: ESRI Maps A
** source: LISGS
POINT PRECIPITATION FREQUENCY ESTIMATES
G.M. Bonnin, D. Martin, B. Lin, I Parzybok, M.Yekta, and D. Riley
NOAA, National Weather Service, Silver Spring, Maryland
PF tabular I PF graphical I Maps & aerials
PF tabular
PDS -based point precipitation frequency estimates with 90% confidence intervals (in inches/hourp
Average recurrence interval (years)
1
2
5
10
25
50 100 200 500 1000
3.96
4.68
5.65
-6.3-8--]F-7.3-3-
8.05 8.77 9.48 10.4
5 -min
[(�962=-124)
(3.60-4.34)
(4.28-5.16)
(5.14-6.22)
(5.80-7.01)
(6.62-8.05)
(7.21-8.84) (7.81-9.65) (8.38-10.5) (9.08-11.5)
10 -min 3.16
(2.87-3.47)
3.74
(3.43-4.12)
4.52
(4.12-4.97)
5.10
(4.63-5.60)
5.84 6.41
(5.27-6.41) (5.74-7.04)
6.97
(6.21-7.66)
7.51 ) ( 8.22 8.75 )
(6.64-8.28 7.19-9.11) (7.58-9.76
15 -min 2.63
3.14
3.82
4.30
4.94 5.41
5.87
6.32 6.90 7.32
(2.39-2.90)
(2.87-3.46)
(3.47-4.20)
(3.91-4.73)
(4.46-5.42) (4.85-5.94)
(5.23-6.46)
(5.59-6.97) (6.03-7.65) (6.34-8.16)
30 -min
1.80
2.17
2.71
3.12
3.66
4.08
4.50
4.92
5.49
5.93
(1.64-1.98)
(1.98-2.39)
(2.46-2.98)
(2.83-3.43)
(3.30-4.01)
(3.65-4.48)
(4.01-4.94)
(4.35-5.42)
(4.80-6.08)
1 (5.13-6.61)
1.13
1.36
1.74
2.03
2.44 2.76 3.10
3.45
F 3.94 4.33
60 -min
(1.02-1.24)
0.648
(1.24-1.50)
0.780
(1.58-1.91)
0.992
(1.84-2.23)
1.16
(2.20-2.67) (2.47-3.03) (2.76-3.41)
1.40 1.59 1.79
(3.05-3.80) 11
2.00
(3.44-4.37) (3.75-4.82)
2.29
2 -hr
=(2.2.81)
(0.591-0.710)
(0.712-0.856)
(0.902-1.09)
(1.05-1.27)
(1.26-1.53) (1.43-1.75) (1.59-1.97)
0.965 1.11 1.25
(1.76-2.21)
(1.99-2.54)
1.63 1.81
0.451
0.539
0.680
0.797
1.41
3 -hr
(0.414-0.497)
(0.493-0.593)
(0.620-0.746)
(0.724-0.873)
(0.869-1.06) (0.987-1.21) (1.11-1.38)
0.552 0.631 0.716
( 1.24-1.55)
1 (1.41-1.81) 1 (1.54-2.02)
0.934 1.04
-T-04--)(0.248-0.293)
0.269
0.317
0.392
0.458
0.806
6 -hr
(0.248-0.293)
(0.291-0.345)
(0.360-0.427)
(0.418-0.496)
(0.500-0.598) (0.568-0.684) (0.638-0.778)
0.318 0.358 0.397
(0.711-0.878)
0.437
(0.809-1.02 (0.886-1.14
)F )
0.490 0.528
-----1F-0--1-9-0-T-0.234
0.269
12 -hr
(0.150-0.175)
1(0.176-0.206)1(0.216-0.253)
(0.248-0.291)
(0.292-0.344) (0.327-0.387) (0.362-0.430)
0.188 0.211 0.234
(0.396-0.475)
0.257
(0.440-0.535) (0.472-0.580)
0.288 0.311
0.111
0.138
0.159
�-hr7F-0.0-93
(0.087-0.100)
(0.104-0.120)
(0.129-0.148)
(0.148-0.171)
(0.175-0.201) (0.195-0.226) (0.216-0.250)
(0.237-0.275)
(0.265-0.307) (0.285-0.332)
0.055
0.066
0.081
0.093
0.109 0.121 0.134
0.147
0.163 0.176
2 -day
(0.052-0.059)
(0.062-0.071)
(0.076-0.087)
1(0.087-0.099)1[(0.101-0.116)
(0.113-0.129) (0.124-0.143)
(0.136-0.156)
(0.151-0.174) (0.162-0.187)
0.039
0.047
0.057
0.065
0.076 0.084 -0.0-92--]F0.101
0.111 0.119
3 -day
(0.037-0.042)
(0.044-0.050)
(0.053-0.061)
(0.061-0.069)
(0.071-0.081) (0.078-0.089) (0.086-0.098)
(0.094-0.107)
(0.103-0.118) (0.110-0.127)
0.031
0.037
0.045
0.051
0.059 0.065 0.072
0.078
0.086 0.091
4-day7
(0.029-0.033)
(0.035-0.040)
(0.042-0.048)
(0.048-0.054)
(0.055-0.063) (0.061-0.070) (0.067-0.076)
(0.072-0.083)
(0.079-0.091) (0.085-0.097)
0.021
0.025
0.030
0.034
0.039 0.043 0.048
0.052
0.057 0.061
7 -day
1(0.020-0.022)]1(0.024-0.027)1(0.028-0.032)
(0.032-0.036)
(0.037-0.042) (0.041-0.046) (0.044-0.050)
(0.048-0.055)
(0.053-0.060) (0.056-0.065)
0.017
0.020
0.024
0.027
0.031 0.034 0.037
0.040
0.043 0.046
10 -day
1(0.016-0.018)]1(0.019-0.021)1(0.022-0.025)
(0.025-0.028)
(0.029-0.032) (0.032-0.036) (0.034-0.039)
(0.037-0.042)
(0.041-0.046) (0.043-0.049)
0.012
0.014
0.016
0.018
0.020 0.022 0.023
0.025
0.027 0.029
20 -day
(0.011-0.012)
(0.013-0.014)
(0.015-0.017)
(0.017-0.019)
(0.019-0.021) (0.021-0.023)i(0.022-0.025)
(0.024-0.026)
(0.025-0.029) (0.027-0.030)
0.010
0.011
0.013
0.014
0.016 0.017 0.018
0.019
0.020 0.021
30 -day
1(0.009-0.010)]1(0.011-0.012)
(0.012-0.014)
(0.013-0.015)
(0.015-0.016) (0.016-0.018) (0.017-0.019)
(0.018-0.020)
(0.019-0.021) (0.020-0.022)
0.008
0.010
0.011
0.012
0.013 0.013 0.014
0.015
0.015 0.016
45 -day
(0.008-0.009)
(0.009-0.010)
(0.010-0.011)
(0.011-0.012)
(0.012-0.013) (0.013-0.014) (0.013-0.015)
(0.014-0.015)
(0.015-0.016) (0.015-0.017)
0.007
0.009
0.010
0.010
0.011 0.012 0.012
0.013
0.013 0.014
60 -day
(0.007-0.008)
(0.008-0.009)
(0.009-0.010)
(0.010-0.011)
(0.011-0.012) (0.011-0.012) (0.012-0.013)
(0.012-0.013)
(0.013-0.014) (0.013-0.014)
Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS).
Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a
given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not
checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values.
Please refer to NOAA Atlas 14 document for more information.
Back to Top
PF graphical
https://hdsc. nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=35.5938&Ion=-82.6006&data=intensity&units=english&series=pds 1/4

3/29/2019 Precipitation Frequency Data Server
NOAA Atlas 14, Volume 2, Version 3
' Location name: Asheville, North Carolina, USA*
Latitude: 35.59380, Longitude: -82.6006°
Elevation: 2136.79 ft** - V-A)
* source: ESRI Maps A
** source: LISGS
POINT PRECIPITATION FREQUENCY ESTIMATES
G.M. Bonnin, D. Martin, B. Lin, T. Parzybok, M.Yekta, and D. Riley
NOAA, National Weather Service, Silver Spring, Maryland
PF tabular I PF graphical I Maps & aerials
PF tabular
PDS -based point precipitation frequency estimates with 90% confidence intervals (in inches)1
Average recurrence interval (years)
1
2
5 10
0.471 0.532
(0.428-0.518) (0.483-0.584)
0.754 0.850
(0.686-0.829) (0.772-0.934)
25
50 100
-O-.6-71--]F-O-.7-31--]F-O-.7-90--]F-O.-866---IF-O.-92-6-1
(0.601-0.737) (0.651-0.804)
1.07 1.16
(0.957-1.17) ( 1.03-1.28)
200 500 1000
5 -min
0.330
(0.300-0.362)
0.527
(0.479-0.579)
0.658
(0.598-0.724)
0.390
(0.357-0.430)
0.624
(0.571-0.687)
0.785
(0.717-0.864)
0.611
(0.552-0.671)
0.974
(0.879-1.07)
(0.698-0.871)
1.25
( 1.11-1.38)
(0.757-0.960)
1.37
( 1.20-1.52) 11(l.26-1.63)
(0.802-1.03)
1.46
10 -min
15 -min
0.954
(0.867-1.05)
1.36
1 (1.23-1.49)
1.74
1 (1.58-1.91)
1.08
(0.977-1.18)
1.56
1 (1.42-1.71)
2.03
(1.84-2.23) 11
1.24
(1.11-1.36)
1.35
(1.21-1.49)
2.04
(1.83-2.24)
2.76
1.47
(1.31-1.61)
1.58
(1.40-1.74) 11
1.72
( 1.51-1.91)
1.83
(1.59-2.04)
30 -min
0.902
1(0.820-0.992)1(0.991-1.19)
1.08
1.83
1 (1.65-2.01) 11
2.25
1 (2.00-2.47)
2.46
1 (2.17-2.71)
2.74
1 (2.40-3.04)
3.94
(3.44-4.37)
2.96
(2.57-3.30)
60 -min
1.13
(1.02-1.24)
1.36
1 (1.24-1.50)
2.44
(2.20-2.67)
3.10
1 (2.76-3.41)
3.45
1 (3.05-3.80) 11
4.33
(3.75-4.82)
2 -hr
1.30
(1.18-1.42)
1.56
1 (1.43-1.71)
1.98 2.33 --2.-80--]F-3.19
1 (1.80-2.17) 1 (2.11-2.55) 1 (2.52-3.07)
2.90
(1.86-2.24) (2.17-2.62) 11 (2.61-3.17)
1 (2.85-3.50)
3.59
1 (3.18-3.94)
--4.-01-T-4.59 5.05
1 (3.53-4.41) 11 (3.98-5.08) (4.34-5.63)
4.23 7 4.90 5.43
1 (3.71-4.66 1 (4.23-5.43) (4.63-6.06)
3 -hr
F--'.-36--]F--l.-62--]F--2.-04--]F--2.-39-
(1.24-1.49)
(1.48-1.78)
3.32
1 (2.97-3.64)
3.76
1 (3.33-4.13)
6 -hr
1.61
(1.49-1.76)
1.90
(1.75-2.06)
2.35 2.74 3.30
(2.16-2.56) (2.50-2.97) 1 (3.00-3.58)
3.78
1 (3.40-4.10)
4.29
1 (3.82-4.66)
4.82 7 5.60 F 6.21
1 (4.26-5.26) 11 (4.85-6.13) (5.31-6.83)
12 -hr
1.94
(1.80-2.11)
2.29
(2.12-2.49)
2.82 3.24 3.837-4-31--1F--4-79--1F--5-27
(2.60-3.05) 1(2.99-3.51) (3.52-4.14)
3.31 3.81 4.51
1 (3.09-3.56) 1 (3.56-4.10) 1 (4.19-4.84)
(3.94-4.66)
(4.36-5.18)
5.61
1 (5.20-6.01)
5.91 6.36
(4.77-5.72) I (5.31-6.45) (5.68-6.99)
6.17 F 6.91 7.46
1 (5.70-6.59) 1 (6.36-7.37) (6.85-7.96)
24 -hr
2.23
(2.08-2.40)
2.68
1 (2.50-2.88)
5.06
1 (4.69-5.42)
2 -day
2.65
(2.49-2.84)
3.17
1 (2.97-3.39)
3.89 4.45 5.22
1 (3.64-4.15) 1 (4.16-4.75) 1 (4.87-5.56)
--4.-68--]F--5.-45
(3.85-4.38) (4.38-4.98) (5.10-5.80)
5.82
1 (5.42-6.20)
6.43
1 (5.97-6.85)
6.65
(6.19-7.08)
7.04 F 7.83 8.43
(6.52-7.49) 1 (7.23-8.34) (7.76-8.96)
7.25 8.02 8.5
(6.73-7.71) (7.43-8.52) 11 9
( 7.94-9.12)
3 -day
F--2.-83--]F--3.-38--]F--4.-11-
(2.66-3.02)
(3.17-3.61)
6.05
(5.65-6.44)
4 -day
3.01
(2.83-3.20)
3.58
(3.37-3.82)
4.32 4.91 --5.-69-F--6.29
(4.06-4.60) (4.61-5.22) 1 (5.32-6.04)
(5.87-6.68)
6.88
1 (6.42-7.31)
7.47 8.21 8.76
(6.95-7.92) (7.62-8.71) (8.13-9.28)
7 -day
3.54
(3.34-3.78)
4.21
(3.97-4.49)
5.05 5.72 6.61
(4.75-5.38) (5.37-6.08) 1 (6.19-7.02)
-----]F--7.99
(6.82-7.75)
1 (7.45-8.48)
8.67 9.55 10.2
(8.06-9.21) (8.85-10.2) (9.42-10.8)
8.09
(7.61-8.56)
10 -day
4.06
(3.84-4.31)
4.81
(4.55-5.10)
5.71 6.42 7.36
(5.40-6.06) (6.06-6.79) (6.94-7.79)
8.81
(8.26-9.32)
9.52 10.4 i 11.1
1 (8.90-10.1) 1 (9.72(9.72-11.1) (10.3-11.8)
10.4
(9.85-11.0)
20 -day
5.59
(5.30-5.89)
6.57
(6.23-6.94)
7.66 8.50 9.60
(7.26-8.08) (8.05-8.97) (9.08-10.1)
9.27 7 10.1 11.2
(8.84-9.73) 1 (9.66-10.6) (10.7-11.8)
11.2
(10.6-11.9)
12.8
(12.2-13.4)
12.0 13.0 13.7
1 (11.3-12.7) 1 (12.2-13.7) (12.8-14.5)
13.5 14.4 15.0
1 (12.8-14.2) 11 (13.6-15.1) (14.2-15.8)
30 -day
6.92
(6.60-7.26)
8.10
(7.73-8.51)
12.1
(11.5-12.7)
45 -day
8.83
(8.45-9.23)
10.3
(9.86-10.8)
11.6 12.5 13.7
(11.1-12.1) (12.0-13.1) (13.1-14.3)
14.5
(13.9-15.2)
15.2
(14.6-15.9)
15.9 16.7 ) ( 17.2
(15.2-16.6) (15.9-17.4 16.4-18.0)
60 -day
10.6
(10.2-11.1) 1
12.4
L_(11.8-12.9) J
13.8 14.8 16.1
L_(13.2-14.4) J L (14.2-15.5) J L (15.4-16.8)
17.0
(16.2-17.7) J
17.8
L (17.0-18.6) J
18.5 F 19.3 19.8
L (17.7-19.3) (18.4-20.2) (18.9-20.7)
t Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS).
Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a
given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not
checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values.
Please refer to NOAA Atlas 14 document for more information.
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PF graphical
https://hdsc. nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=35.5938&Ion=-82.6006&data=depth&units=english&series=pds 1/4