Telecommunications Reliability Facility - Fort Bragg - Telecom_SWM_EZ_full_application

Fayetteville, NC CUMBERLAND County
Type of application:
Initials
1
2 DS
3 **N/A**
4 DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
d. The boundaries of all surface waters, regulatory flood zones, and protected
riparian buffers or a note on the plans that none exist.
b. Location map with street names and SR numbers, legend, north arrow,
scale.
a. Project name, engineer and firm, revision number and dates.
e. The boundaries of all vegetated or protected riparian buffers.
DS
Click here for Express Permitting info
Telecommunications Reliability Facility
Fort Bragg, NC CUMBERLAND County
A copy of the most current property deed.
Two copies of additional calculations (as needed). Sealed, signed and dated.
Two sets of sealed, signed, & dated full-sized plans of the entire site at a
readable scale, including:
Dan Saltsman, Stantec Consulting Services
Part I: Submittal Checklist
Application
New Permit
Notes / Comments
Original and one copy of this application form (all worksheets) and the permit
application fee. For applications submitted to the DEMLR regular permitting
program, the fee is $505 payable to NCDENR. For Express Review, click on the
link below for information and fee schedule. Contact the appropriate regional
office Express Review Coordinator to schedule the required pre-application
meeting.
A USGS map identifying the site location. If the receiving stream is reported as
class SA or the receiving stream drains to and is within 1/2 mile of SA waters,
then include the 1/2 mile radius on the map.
d. Specifications for applicable materials, such as planting media, aggregate,
sod, underdrains, outlet devices, etc.
c. A table of elevations, incremental volumes and accumulated volumes (if
applicable).
a. Dimensions, side slopes, length to width ratios and elevations with a
benchmark for clean-out if appropriate.
b. All applicable conveyance devices, including: bypass structure,
pretreatment area, flow distribution device, underdrains, outlet device, outlet
dissipater and level spreader.
Two sets of sealed, signed, & dated full-sized plan details of each SCM (or
typical if appropriate) in both plan view and cross-section at a scale of 1" = 30'
or larger, including:
k. A construction sequence that shows how the SCMs will be protected from
sediment until the entire drainage area is stabilized.
c. Dimensioned property/project boundary with bearings & distances.
f. Site layout showing all built-upon areas, drainage features, stormwater
collection systems (inlets, outlets, swales, pipe elevations, slopes and
diameters), and SCMs at ultimate build-out.
g. Existing contours, proposed contours, spot elevations, and finished floor
elevations.
h. Existing drainage (including off-site), drainage easements, pipe sizes,
runoff calculations.
Only complete application packages will be accepted and reviewed. A complete package includes all of the items in the checklist
below. Add any comments, and indicate the page or plan sheet number where the following information can be found. Please
indicate that you have provided the following required information by initialing in the space provided next to each item.
Item
6
5
i. Drainage area boundaries (included in the main set of plans, not as a
separate document).
j. Existing and proposed maintenance access routes, utility easements,
drainage easements, public rights-of-way etc.
STORM-EZ
Version 1.4 Application
9/25/2018
Page 1 of 12
Fayetteville, NC CUMBERLAND County
**N/A**
**N/A**
**N/A**
**N/A**
**N/A**
8 DS
9
10
11
12 **N/A**
Infiltration trenches with Sod
only. Sod spec included.
**N/A**
Federal Gov. Military Installation **N/A**
7
For corporations and limited liability corporations (LLC): Documentation from
the NC Secretary of State or other official documentation, which supports the
titles and positions held by the persons listed in the Contact Information section.
The corporation or LLC must be listed as an active corporation in good standing
with the NC Secretary of State, otherwise the application will be returned.
See attached letter from David A.
Heins
NCDENR Deed Restriction Forms
Federal Gov. Military Installation
c. The source nursery for the plants.
A copy of the signed and notarized operation and maintenance (O & M)
agreement.
a. The locations of each species and a planting detail.
b. A table summarizing the size, spacing and total quantity of each plant
species that should be used.
A copy of the lease agreement or pending sales agreement if applicable.
NC Dept. of the Secretary of State
A soils report based on field evaluation indicating the SHWT elevations within
the footprints of the proposed SCM(s). Provide a map of the boring locations
with the existing elevations and boring logs. For infiltration SCMs, the report
shall include the soil type, infiltration rate and method for determining the
infiltration rate. Soils information shall be signed and sealed by a licensed soil
scientist.
Two sealed, signed, & dated planting plans for each SCM (or typical) at a scale
of 1" = 20' or larger, as applicable, including:
d. A one-time fertilizer specification to establish plants if necessary.
A copy of the proposed deed restrictions protecting the SCMs and limiting the
built-upon area so that it does not exceed the capacity of the SCM(s) or the high
density threshold (as applicable).
STORM-EZ
Version 1.4 Application
9/25/2018
Page 2 of 12
Fayetteville, NC CUMBERLAND County
Date:
Lat:
Zip:Long:
County:
Project Applicant:
Owner / Signing Offical's Name:
Title:
Address:
City:
State:
Zip:
Phone:
Fax:
Email:
Status of applicant:
River Basin:
Receiving Stream(s):
Stream Class(es):
Surface Water Area (ac):Coastal wetland area (ac):
Total property area (ac):Total project area (ac):
Goals/characteristics:Volume Matching (LID) Drains to an offsite stormwater system
Low Density Within 575' of Saltwater ORW
YES High Density Within 5 miles of a public airport
Briefly summarize how the stormwater runoff will be treated:

Status of construction:
Other permits needed: YES Sedimentation & erosion control 404 Permit / 401 Certification
CAMA Major Permit Isolated Wetlands Permit
Threatened & Endangered Species NPDES Industrial Stormwater Permit
If an application for this project has been previously returned, provide the original project number and previous name of the project:
Provide the permit type, number and issue date for any permits that have already been obtained for this project:

If claiming vested rights, then identify (and attach) the supporting documents and approval dates:
Approval of a site-specific development plan or PUD Approval date:
Valid building permit Issue date:
Other Date:
Not Started
Point of Contact:Phone number:
30-Aug-18
CUMBERLAND
Not Started
Project Name:
City:
Cape Fear
(from nearest intersection)
(Identify the corporation, organization, property owner, designated
government official, etc. which owns the project .)
910-396-8207
Owner
NON-COASTAL
WS-III
0.66
Cypress Creek
[e-mail]
28310-5000
Mr. David Heins
Fort Bragg
North Carolina
-79.082536
Chief, Environmental Division Directorate of Public Works
Department of Defense
Directions to Project:
Telecommunications Reliability Facility
35.1602
Part III: Permit Information
FROM THE INTERSTECTION OF LAMONT ROAD AND McKELLARS ROAD,
HEAD EAST ON McKELLARS ROAD, THE FIRST LEFT WILL BE THE
ENTRANCE CONTINUE LEFT TO SITE
0.66
Sediment and Erosion Control Plan Approval-NPDES Constrcution Stormwater General Permit NCG010000--Project Name:
FB-Telecommunications Reliability Facility, SOTF, PN81894 Project ID: CUMBE-2019-001
The stormwater runoff will be treated by two stormwater management infiltration trenches and disconnected areas.
Fort Bragg
2715 Reilly Road Stop A
Project Street Address:
Part II: General Project and Applicant Information
STORM-EZ
Version 1.4 Application
9/25/2018
Page 3 of 12
Fayetteville, NC CUMBERLAND County
Signing Official & Title:
Street address:
Signature: _____________________________________________________________ Date: ____________________________________
I, ___________________________________________, a Notary Public for the State of ___________________________________,
County of ______________________________, do hearby certify that __________________________________________________
personally appeared before me this _____ day of ____________________________, ______________,
and acknowledge the due execution of the application for a stormwater permit.
Witness my hand and official seal, _____________________________________________.
My commission expires ______________________________________________________________
Seal
Part IV: Additional Contact Information

Part V: Consultant Information
Street address: 801 Jones Franklin rd. #300
Complete this section if you wish to designate authority to another individual or firm so that they may provide information on your
behalf for this project (such as addressing requests for additional information).
910-908-5286
Fort Bragg, North Carolina 28310-5000
(Optional) Additional Contact
Person / Orginization:
Lee Ward - Chief of Water Management Branch, Fort Bragg
2715 Reilly Road Stop A
Email:
City, State, Zip:
919-532-2331
Email:
Phone number(s):
Consultant:
[e-mail]
(Note: Person/Organization noted above may be contacted for additional project information if applicant
cannot be reached.)
City, State, Zip:
Dan Saltsman
I, (the Owner & Applicant listed above),
Part VI: Property Owner / Applicant Certification
, certify that the information included
Firm: Stantec Consulting Services
Raleigh, NC, 27606
on this permit applicant form is, to the best of my knowledge, correct and that the project will be constructed in conformance with the approved
plans, that the required deed restrictusion and protective covenants will be recorded, and that the proposed project complies with the
requirements of the applicable state stormwater rules and requirements.
Phone number(s):
[e-mail]
STORM-EZ
Version 1.4 Application
9/25/2018
Page 4 of 12
1.00
1.44
2.06
3.06
3.70
5.46
6.52
7.38
8.26
Highlighted Storm is Design Storm
0.66 acres 0.18 acres
0.00 acres 27%
0.00 acres
Complete the breakdown of impervious area for the project
Yes
2-yr, 24-hr
Storm Event
10-yr, 24-hr
25-yr, 24-hr(Minimum Design Storm = P90 for non-SA, 1-yr, 24-hr for SA)
Loaded Rainfall:
0
Entire Site
Total Impervious Area
Project % impervious area
ALL AREAS ARE IN SQUARE FEET
100-yr, 24-hr
PROJECT INFORMATION
RAINFALL & CALCULATION DATA
Rainfall Source:
Project County:
Project City:
CUMBERLAND
Fort Bragg
Fort Bragg
Design Storm:
Fort Bragg
1-yr, 24-hr
Telecommunications Reliability Facility
Fort Bragg, NC CUMBERLAND County
Cape Fear River Basin
Depth
(inches)
P90
First Flush / WQV
P90
P95
50-yr, 24-hr
Total Property Area
Total Coastal Wetlands Area
Total Surface Water Area
0
0
Use Worksheet Data?
Total Drainage Area
On-Site Drainage Area (sf)
28,967
28,967
Data in italics is derived from application
forms and land use data worksheets and
cannot be changed by user.
Proposed Impervious Area (sf)
% Impervious Area (total)
0
7,753
27%
On-Site Buildings/Lots (sf)
On-Site Streets (sf)
1,931
0
Other On-Site (sf)
4,261
1,561
0
On-Site Parking (sf)
On-Site Sidewalks (sf)
Future (sf)
Off-site (sf)
Existing BUA (sf)
7,753Total
0
Impervious Surface Area
Offsite Drainage Area (sf)
Stream Index Number
Stream Class
Receiving Stream name
Basin Information Entire Site
NOTE: Please use the Storm-EZ calculation sheets to document the stormwater design
and create the O&M Agreement.
Discrete SCS Method,
Pre - PostCalculation Method
STORM-EZ
Version 1.4 Project Data
9/25/2018
Page 5 of 12
1 of 1
Pre-Development Land Use:
HSG CN %
A 30 31.73%
A 39 68.27%
Note: Enter BUA Draining to
Permeable Pavement Below
HSG
30.0 0.00 0.00%
0.66 0.00%
Existing Permeable Pavement (Infiltration):
Pavement Area Additional BUA
Soil
Infiltratio
n Rate
Gravel Void
Space
Total
Gravel
Depth
Orifice
Dia.
Orifice
Height
(sf) (sf) (in/hr) (%) (in) (in) (in)
100
DSD PAW Dgr
(in) (%) (in) (sf) (acres)
150 1.44 0.00
0.66 acres
0.00 acres
0.00 acres
0.00 acres
0.00 acres
0.66 acres
Pre-Development SCMs:
Imp. Open
(sf) (sf)
(cf) HSG 0 28967
200
Rainfall Volume =0.96 cf
Natural Infiltration & ET =-0.96 cf
Disconnected Impervious Surfaces =0.00 cf
SCM Infiltration =0.00 cf
Permeable Pavement Infiltration =0.00 cf
Green Roof ET =0.00 cf
Post Filtration Discharge =0.00 cf
Total Runoff Reduction =-0.96 cf
Treated SCM Outflow =0.00 cf
Untreated Surface Runoff =0.00 cf
28,967
0
0
-3,476
-3,476
0
0
0
SCM Treatment:
acre-inches =0
The Pre-Development project area contains 0 sf of built upon area, resulting in an overall density of 0%.
0
acre-inches =
acre-inches =
acre-inches =
acre-inches =
acre-inches =
acre-inches =
BUA %
SCM #
SCM #
From Land Use Tables: 28,967
Preserved Surface Waters & Non-Coastal Wetlands :
Runoff Reduction Components:
acre-inches =
3,476acre-inches =
acre-inches =
Design Storm Runoff Fate Summary:
28,967
Subtotal:
Telecommunications Reliability Facility
(acres)
0.45Pasture or Open Space
Woods 9,191
19,776
Fort Bragg, NC CUMBERLAND County
Cape Fear River Basin
PRE-DEVELOPMENT LAND USE CALCULATIONS
Drainage Area #
(sf)Land-use
0.21
Area
User Defined Drainage Areas:Comp.
CNDescription
Area
(ac.)Area (sf.)
Subtotal:
Area (sf.)
WQ Volume
Provided
% Imp
Drainage Area
28,967 0.66
0
Downstream
SCM
Description
Total Site Area:
Land Use Summary:
Description
Preserved Coastal Wetlands :
NotesSCM #
Area DS SCM #
Has Synthetic
Liner?
Permeable Pavement + Additional BUA:
Green Roofs :
0
Existing Green Roofs:
HSG
SCM Type
D.S.
BMP
STORM-EZ
Version 1.4 Pre-Development
9/25/2018
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Permeable Pavement:
Infiltration
Rate Void Space
Total
Gravel
Depth
Orifice
Dia.
Orifice
Height
(sf) (acres) (sf) (acres) (in/hr) (%) (in) (in) (in)
500 0.00 0.00 No
DSD PAW Dgr
(in) (%) (in) (sf) (acres)
600 1.44 0.00 No
Residential Lot CN Calculator (Excluding R/W and dedicated open spaces):
Max Imp / Lot Woods / Lot
(ac.) (sf) (sf)
0.00
Remaining Land Use:
HSG CN (sf) (acres) %
A 39.0 21,214 0.49 73.24%
A 98.0 7,753 0.18 26.76%
N/A 0 0.00 0.00%
N/A 0 0.00 0.00%
28,967 0.66 100.00%
Land Excluded, or Partially Excluded, from Volume Calculations:(sf.) (ac.)
00.00
00.00
28,967 0.66
Rainfall Volume =0.96 cf
Natural Infiltration & ET =-0.74 cf
Disconnected Impervious Surfaces =-0.01 cf
SCM Infiltration =-0.18 cf
Permeable Pavement Infiltration =0.00 cf
Green Roof ET =0.00 cf
Post Filtration Discharge =0.00 cf
Total Runoff Reduction =-0.93 cf
CommentsRetrofit?
Drainage Area #
Down-
stream
SCM
Additional BUA
SCM #
Downstream
SCM #
HSG
Avg Lot Size
Pavement Area
% Imp.(sf.)
Permeable Pavement + BUA:
Sub-Total:
Green Roofs:
# of Lots
Land-Use
Impervious
Lot Area
Open Space (Managed Open Space)
Total Site Area:
Surface Waters & Non-Coastal Wetlands :
Green Roofs :
Coastal Wetlands :
acre-inches =
-663
0
-3,385
Telecommunications Reliability Facility
Fort Bragg, NC CUMBERLAND County
Cape Fear River Basin
Detention
Check
Has
Synthetic
Liner?
Infiltration
Check
POST-DEVELOPMENT LAND USE CALCULATIONS
Pvmt Type
SCM #
Area
Runoff Reduction Components:
Design Storm Runoff Fate Summary:
acre-inches =
acre-inches =
acre-inches =
acre-inches = -2,687
acre-inches =
0
-35
acre-inches =
0
Area
Open Space / Lot
(sf)
3,476
acre-inches =
STORM-EZ
Version 1.4 Post Development
9/25/2018
Page 7 of 12
1 of 1Drainage Area #
Telecommunications Reliability Facility
Fort Bragg, NC CUMBERLAND County
Cape Fear River Basin
POST-DEVELOPMENT LAND USE CALCULATIONS
Treated SCM Outflow =0.00 cf
Untreated Surface Runoff =0.03 cf
Pre-Development Runoff =0.00 cf
Difference =0.03 cf
acre-inches =
acre-inches =0
SCM Treatment:
91
acre-inches =91
acre-inches =0
The Post-Development project area contains 7753 sf of built upon area, resulting in an overall density of 26.76%.
STORM-EZ
Version 1.4 Post Development
9/25/2018
Page 8 of 12
1 of 1
Impervious
(sf)
7,753 (cf) (cf) (cf) (cf) (cf) (cf)
700 SWM INF. TRENCH1 Infiltration Device A 3,791 49% 23%566 386 386 386 0 0 45%
701 SWM INF. TRENCH2 Infiltration Device A 2,720 35% 16%751 277 277 277 0 0 25%
702 Sidewalks/Gravel Disconnected Impervious Type 3 A 535 7% 5%54 54 35 0 0 100%
Rainfall Volume =0.96 acre-inches =cf
Natural Infiltration & ET =-0.74 acre-inches = cf
Disconnected Impervious Area =-0.01 acre-inches = cf
SCM Infiltration =-0.18 acre-inches = cf
Permeable Pavement Infiltration =0.00 acre-inches = cf
Green Roof ET =0.00 acre-inches = cf
Post Filtration Discharge =0.00 acre-inches = cf
Total Runoff Reduction =-0.93 acre-inches =cf
SCM Treatment:
Treated SCM Outflow =0.00 acre-inches =cf
Untreated Surface Runoff =0.03 acre-inches =cf
0.00 acre-inches =cf
0.03 acre-inches =cf
0.01 ac. Impervious Area (7% of total impervious) is disconnected. Net untreated runoff form other impervious area = 72 cf
STORMWATER CONTROL MEASURES
% of SCM
Volume
Utilized
Post
Filtration
Outflow
Treated
Outflow
Type of Device
SCM
# Name / Location
Contributing Area
HSG
4,790
% of Total
Impervious
Area
% of Total
Pervious
Area
Storage
Volume
3,320
Offsite Impervious
Area Treated
Infiltration &
ET
0
1,020
sf
Total
Inflow
Volume
Enter only runoff volume below that will be infiltrated or drawn down over 2 to 5 days. Additional volume provided in devices should not be entered in this worksheet.
Drawdown time requirement applies to all storm events.
Drainage Area #
PROPOSED SIPs & STRUCTURAL RUNOFF VOLUME CONTROLS
Telecommunications Reliability Facility
Fort Bragg, NC CUMBERLAND County
Cape Fear River Basin
0
9130 sf open space entered
compared to 21214 sf total
open space.
Pervious
(sf)
21,214
0
Warnings:
Design Storm Runoff Fate Summary:
The Post-Development project area contains 7753 sf of built upon area, resulting in an overall density of 26.76%.
0
0
**CHECK DESIGN**
Difference =
0 cf of runoff generated by pervious areas. Net untreated runoff = 91 cf. Net 91% of impervious area routed through SCMs.
Pre-Development Runoff =
0
91
91% of total
impervious
area.
43% of total
pervious
area.
Runoff Reduction Components:
-2,687
7046 sf impervious area entered compared
to 7753 sf total impervious.
Down-
stream SCM
#
Drainage
Area Inflow
Volume
91
-3,385
-663
-35
3,476
STORM-EZ
Version 1.4 Stormwater Controls
9/25/2018
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Compliance Storm = P90 Storm - Rainfall Depth = 1.44 inches
Drainage Area #
FATE OF RAINFALL
Select Storm:
The"Fate of Rainfall" charts display the hydrologic processes to which rainfall volumes are subjected based on the combinations of land use, soil type, and stormwater controls entered by the user. The charts are designed to display the stormwater
plan in a form which illustrates changes to the hydrologic cycle which result from urbanization and various stormwater management strategies.
Fort Bragg, NC CUMBERLAND County
Cape Fear River Basin
P90
Telecommunications Reliability Facility
P90 Storm - Rainfall Depth = 1.44 inches
VOLUME MATCHING SCALE
Volume Matching Threshold
Basic Treatment Threshold
BASIC TREATMENT SCALE
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Infiltration and ET ‐ 3385 cf Treated Outflow from BMPs ‐ 0 cf Untreated Surface Runoff ‐ 91 cf% of Total Rainfall VolumePost Development Fates
Post Filtration Outflow ‐ 0 cf Other
Infiltration by BMPs ‐ 663 cf Permeable Pavement Infiltration ‐ 0 cf
Disconnected Impervious Infiltration ‐ 35 cf Green Roof Evapotranspiration ‐ 0 cf
Infiltration and ET ‐ 2687 cf
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Infiltration and ET ‐ 3476 cf Treated Outflow from BMPs ‐ 0 cf Untreated Surface Runoff ‐ 0 cf% of Total Rainfall VolumePre Development Fates
Post Filtration Outflow ‐ 0 cf Other
Infiltration by BMPs ‐ 0 cf Permeable Pavement Infiltration ‐ 0 cf
Disconnected Impervious Infiltration ‐ 0 cf Green Roof Evapotranspiration ‐ 0 cf
Infiltration and ET ‐ 3476 cf
FATE OF RAINFALL GRAPHS
STORM-EZ
Version 1.4 Rainfall Fate Graph
9/25/2018
Page 10 of 12
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TIME OF CONCENTRATION CALCULATIONS:
Pre-Development
Length (ft) Slope (ft/ft)Tt (hrs)
48 0.064 0.12
102 0.068 0.14
Length (ft) Slope (ft/ft) n-value
Flow Area
(ft2)Tt (hrs)
Channel Flow:
Channel Flow:
Pre-development Tc =15.24 min (Minimum 5 minutes)
Post Development
Length (ft) Slope (ft/ft)Tt (hrs)
30 0.064 0.08
134 0.069 0.01
Length (ft) Slope (ft/ft) n-value
Flow Area
(ft2)Tt (hrs)
Channel Flow:
Channel Flow:
Post-development Tc =5.65 min (Minimum 5 minutes)
ADJUSTED CURVE NUMBER CALCULATIONS:
Pre-Development
F.F. P90 P95 1-Yr 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr
Rainfall (in) = 1.00 1.44 2.06 3.06 3.70 5.46 6.52 7.38 8.26
Q*(in) =0.00 0.00 0.00 0.00 0.00 0.19 0.43 0.68 0.99
CNadj =67 58 49 40 36 36 36 36 36
Post Development
F.F. P90 P95 1-Yr 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr
Rainfall (in) = 1.00 1.44 2.06 3.06 3.70 5.46 6.52 7.38 8.26
Q*(in) =0.02 0.04 0.08 0.11 0.22 0.73 1.22 1.65 2.13
CNadj =74 67 61 50 49 47 48 48 47
PEAK FLOW CALCULATIONS:
F.F. P90 P95 1-Yr 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr
Pre-Development
Q* (in) 0.00 0.00 0.00 0.00 0.00 0.19 0.43 0.68 0.99
qu (csm/in)251.20 251.20 251.20 251.20 251.20 251.20 251.20 251.20 315.79
Q (cfs) 0.00 0.00 0.00 0.00 0.00 0.05 0.11 0.18 0.33
Post Development
Q* (in) 0.02 0.04 0.08 0.11 0.22 0.73 1.22 1.65 2.13
qu (csm/in)367.10 367.10 367.10 367.10 367.10 627.50 758.67 870.87 870.87
Q (cfs) 0.01 0.01 0.03 0.04 0.08 0.48 0.96 1.49 1.93
N/A N/A N/A N/A 22466.3% 872.5% 755.5% 736.6% 491.6%
Paved or Bare Soil
Analysis Area = 0.66 Acres (0.001 sq. miles)
Sheet Flow:
Shallow Flow:
Sheet Flow:
Shallow Flow:
Wetted Perimeter (ft)
Sheet Flow:
Shallow Flow:
**Note: To decrease Post-development peak flows - increase storage volume being drawdown or infiltrated or lengthen post-
Wetted Perimeter (ft)
Sheet Flow: Woods
Surface Cover
Analysis Area = 0.66 Acres (0.001 sq. miles)
Telecommunications Reliability Facility
Fort Bragg, NC CUMBERLAND County
Shallow Flow:
Drainage Area #
Surface Cover
Woods
Grass
Cape Fear River Basin
ADDITIONAL CALCULATIONS
STORM-EZ
Version 1.4 Peak Flow Calcs
9/25/2018
Page 11 of 12
development time of concentration. See LID HELP for more information.
STORM-EZ
Version 1.4 Peak Flow Calcs
9/25/2018
Page 12 of 12