20080353 Ver 3_Stormwater Info_20081104

10
ENGINEERING - SURVEYING - DESIGNING - DRAFTING
Larry King & Associates, R.L.S., P.A.
P.O. Box 53787
1333 Morganton Road, Suite 201
Fayetteville, North Carolina 28305
4P
pg-- 0353 V3
P. [phone] F. [phone]
www.LKandA.com V
TRANSMITTAL '004?
ltle,L ,IQa R
o: oseph Gyamfi Company: NCDWQ
321 Crabtree Blvd.
Address: Suite 250 Re: Summerlyn Apartments
Raleigh, NC 27604-2260
Date: 11/3/2008 CC:
We are
?
HAND DELIVERY
0 OVERNIGHT ? US MAIL
? PICKUP AT OUR
OFFICE
sendin Via: DELIVERY
? SURVEY ? PLOT PLAN(S) ? CHANGE ORDER ?
DRAWING(S)
The following: PRELIMINARY FINAL
? CONCEPTUAL ? CONSTRUCTION 0 CONSTRUCTION 0 OTHER
DRAWING(S) DRAWING(S) DRAWING(S)
For your: a FREVIEW ? COMMENTS ? SIGNATURE OTHER
COPIES DATE NO. DESCRIPTION
3 Complete sets of construction plans

3 Signed Permit application forms
3 Wetland Supplement for SW-A
3 Wetland Supplement for SW-B
3 Supporting design calculations for SW-A & SW-B
3 Signed 0& M Agreement

Notes:
(Jl?-
From: ?'(j
Jeffr obles, PE
Please notify us at once if any items are missing.
Ex.IP og-o3S3u3
Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Stormwater Wetland Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
- Immediately after the stormwater wetland is established, the wetland plants will
be watered twice weekly if needed until the plants become established
(commonly six weeks).
- No portion of the stormwater wetland will be fertilized after the first initial
fertilization that is required to establish the wetland plants.
- Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
- Once a year, a dam safety expert will inspect the embankment.
After the wet detention pond is established, I will inspect it once a month and within 24
hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element: Potential problem: How I will remediate the roblem:
The entire BMP Trash/ debris is resent. Remove the trash/ debris.
The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to
wetland erosive gullies have formed. remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too Maintain vegetation at a height of
long. approximately six inches.
The inlet device: pipe or The pipe is clogged (if Unclog the pipe. Dispose of the
swale applicable). sediment off-site.
The pipe is cracked or Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the Regrade the swale if necessary to
swale (if applicable). smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Form SW401-Wetland O&M-Rev.3 Page 1 of 4
BMP element: Potential problem: How I will remediate the problem:
The forebay Sediment has accumulated in Search for the source of the
the forebay to a depth that sediment and remedy the problem if
inhibits the forebay from possible. Remove the sediment and
functioning well. dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred. Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present. Remove the weeds, preferably by
hand. If a pesticide is used, wipe it
on the plants rather than spraying.
The deep pool, shallow Algal growth covers over Consult a professional to remove
water and shallow land 50% of the deep pool and and control the algal growth.
areas shallow water areas.
Cattails, phragmites or other Remove the plants by wiping them
invasive plants cover 50% of with pesticide (do not spray) -
the deep pool and shallow consult a professional.
water areas.
Shallow land remains flooded Unclog the outlet device
more than 5 days after a immediately.
storm event.
Plants are dead, diseased or Determine the source of the
dying. problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Best professional practices Prune according to best professional
show that pruning is needed practices.
to maintain optimal plant
health.
Sediment has accumulated Search for the source of the
and reduced the depth to 75% sediment and remedy the problem if
of the original design depth possible. Remove the sediment and
of the deep pools. dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Form SW401-Wetland O&M-Rev.3 Page 2 of 4
BMP element: Potential problem: How I will remediate the problem:
The embankment A tree has started to grow on Consult a dam safety specialist to
the embankment. remove the tree.
An annual inspection by an Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
Evidence of muskrat or Use traps to remove muskrats and
beaver activity is present. consult a professional to remove
beavers.
The micropool Sediment has accumulated Search for the source of the
and reduced the depth to 75% sediment and remedy the problem if
of the original design depth. possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Plants are growing in the Remove the plants, preferably by
micropool. hand. If a pesticide is used, wipe it
on the plants rather than spraying.
The outlet device Clogging has occurred. Clean out the outlet device. Dispose
of the sediment off-site.
The outlet device is damaged Repair or replace the outlet device.
The receiving water Erosion or other signs of Contact the NC Division of Water
damage have occurred at the Quality 401 Oversight Unit at 919-
outlet. 733-1786.
Form SW401-Wetland O&M-Rev.3 Page 3 of 4
Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name: Summerl} n Apartments
BMP drainage area number:_SW-A, SW-2
Print name:George M. Rose
?G`?'E'l/?? p??l??M I P'??h7,
Title:Managing Partner
Address:PO Box 53441, Fayetteville, NC 28305
Phon
Sign
Date
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
1- 4 / f e 1-d , a Notary Public for the State of
County of (I u- iig &&"d- , do hereby certify that
RI) e, personally appeared before me this U
day of Cn U e r RO n , and acknowledge the due execution of the
forgoing stormwater wetland maintenance requirements. Witness my hand and official
seal, IS AZ,--J,/etA?
O1IBu/j?r
m ??6t%and Co O' '
2 v? rotary
o
Fub\\G c
?}AjreS 5:1?ry`?Cev?
Ca4o0
SEAL
My commission expires Zbaz,'6 X s , aew
Form SW401-Wetland O&M-Rev.3 Page 4 of 4
an 0'9 - () V 3
Permit Number
(to be provided by DWQ)
PIMA
AM
..*A
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WETLAND SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all the required information.
0??4 wnr???'?
r
1. PROJECT INFORMATION ,.a
Project name Summerly Apartments
Contact name Jeffrey A, Nobles, PE
Phone number 9104834300
Date October 17, 2008
Drainage area number SW-A
II. DESIGN INFORMATION
Site Characteristics
Drainage area 64,904.00 ftz
Impervious area 43,570.00 ft2
Percent impervious 67.1%%
Design rainfall depth 1.00 inch
Peak Flow Calculations
1-yr, 24-hr rainfall depth
1-yr, 24-hr intensity
Pre-development 1-yr, 24-hr runoff
Post-development 1-yr, 24-hr runoff
Pre/Post 1-yr, 24-hr peak control
Storage Volume: Non-SA Waters
Minimum required volume
3.00 in
1.00 in/hr
0.04 ft3/sec
0.11 ft3/sec
0.07 ft3lsec
3,537.00 ft3
Volume provided (temporary pool volume) 6,320.00 ft3 OK
Depth of temporary pool/ponding depth (Dpont,) 12.00 in OK
Drawdown time 2.13 days OK
Diameter of orifice 1.13 in OK
Coefficient of discharge (CD) used in orifice diameter
calculation
Driving head (Ho) used in the orifice diameter calculation
Storage Volume: SA Waters Parameters
1.5' runoff volume
Pre-development 1-yr, 24-hr runoff volume
Post-development 1-yr, 24-hr runoff volume
Minimum volume required
Volume provided
0.60 (unitless)
0.33 ft
ft3
ft3
ft3
ft3
ft3
Provide calculations to support this driving head.
Form SW401 -Wetland-Rev. 3 Parts I and II. Project Design Summary, Page 1 of 3
Permit Number
(to be provided by DWQ)
Surface Areas of Wetland Zones
Surface Area of Entire Wetland
Shallow Land
The shallow land percentage is:
Shallow Water
The shallow water percentage is:
Deep Pool
Forebay portion of deep pool (pretreatment)
The forebay surface area percentage is:
Non-forebay portion of deep pool
The non-forebay deep pool surface area percentage is:
Total of wetland zone areas
Add or subtract the following area from the zones
Topographic Zone Elevations
Temporary Pool
Shallow Land (top)
Permanent Pool
Shallow Water (top)
Deep Pool (top)
Most shallow point of deep pool's bottom
Deepest point of deep pool's bottom
Design must meet one of the following two options:
This design meets Option #1,
Deep pool is 6'inches below SLWT, If yes:
SLWT (Seasonally Low Water Table)
This design meets Option #2,
Has a clay liner
If yes:
Depth of topsoil above clay liner
Topographic Zone Depths
Temporary Pool
Shallow Land
Permanent Pool
Shallow Water
Deep Pool (shallowest)
Deep Pool (deepest)
Planting Plan
Are cattails included in the planting plan?
Number of Plants in planting plan recommended:
Herbacious (4`inch diameter)
Shrubs/small trees (1 gallon or larger)
Trees (1.5" dbh)
Number of Plants in planting plan provided (several species of
each plant type are recommended):
Herbacious (4'inch diameter)
Shrubs/small trees (1 gallon or larger)
Trees (2.5" dbh)
6,320.00 ft2 OK
2,483.00 ftz OK
0.39%
2,548.00 ft2 OK
0.40%
819.00 ftz OK
0.13%
470.00 ftz OK
0.07%
6,320.00 ftz OK
0.00 ftz
197.75 fmsl
196.75 fmsl
196.25 fmsl
194.00 fmsl
194.00 fmsl
N (Y or N)
n/a fmsl OK
4.00 in
12.00 in OK
6.00 in OK
27.00 in OK
27.00 in OK
N (Y or N) OK
192
128
32
552 OK
128 OK
32 OK
Form SW401-Wetland-Rev.3 Parts I and B. Project Design Summary, Page 2 of 3
Permit Number
(to be provided by DWQ)
Additional Information
Can the design volume be contained? Y (Y or N) OK
Does volume in excess of the design volume flow evenly Y (Y or N) OK
distributed through a vegetated filter?
What is the length of the vegetated filter? ft
Are calculations for supporting the design volume provided in the Y (Y or N) OK
application?
Is BMP sized to handle all runoff from ultimate build-out? Y (Y or N) OK
Is the BMP located in a recorded drainage easement with a Y (Y or N) OK
recorded access easement to a public Right of Way (ROW)?
The length to width ratio is: 11.00 :1 OK
Approximate wetland length 275.00 ft
Approximate wetland width 25.00 ft

Approximate surface area using length and width provided
6 s
,875.00 ft This approx. surface area is within this number of square
feet of the entire wetland surface area reported above:
Will the wetland be stabilized within 14 days of construction? Y (Y or N) OK
Form SW401-Wetland-Rev.3 Parts I and 11. Project Design Summary, Page 3 of 3
Permit No.
(to be provided by DWQ)
III. REQU! (TENS CHEdK-LIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Initials Pagel Plan
Sheet No.
G03 1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build-out,
- Off-site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Wetland dimensions (and length to width ratio),
- Pretreatment system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
C D 3A 2. Plan details (1" = 50' or larger) for the wetland showing:
Wetland dimensions (and length to width ratio)
- Pretreatment system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build-out,
- Off-site drainage (if applicable),
- Overflow device, and
- Boundaries of drainage easement.
C03R 3. Section view of the wetland (1" = 20' or larger) showing:
Side slopes, 3:1 or lower
- Wetland layers
All wetlands: Shallow land depth, shallow water depth, deep pool depth
Option 1, no clay liner: SLWT depth
Option 2, clay liner: Depth of topsoil on top of liner, liner specifications
Ll - L? 4. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing:

- A variety of suitable species (not including cattails),
Sizes, spacing and locations of plantings,
Total quantity of each type of plant specified,
- A planting detail,
The source nursery for the plants, and
- Fertilizer and watering requirements to establish vegetation.
L03,CO4 5. A construction sequence that shows how the wetland will be protected from sediment until the entire
drainage area is stabilized.
A#ac?u? 6. The supporting calculations (including drawdown calculations).
M"J 7. A copy of the signed and notarized operation and maintenance (0&M) agreement.
8. A copy of the deed restrictions (if required).
9. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
SW401-Wetland-Rev.3 Part III, page 1 of 1
E,q off - 03S3 03
Permit Number
(to be provided by DWQ)
`R
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WETLAND SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all the required information.
©?b? W ATF?,PG
CP ,c
I. PROJECT INF FEAT
Project name Summerly Apartments
Contact name Jeffrey A. Nobles, PE
Phone number 910483-4300
Date October 17, 2008
Drainage area number SW-B
II. DESIGN INFORMATION
Site Characteristics
Drainage area 69,696.00 ft2
Impervious area 56,679.00 ft2
Percent impervious 81.3%%
Design rainfall depth 1.00 inch
Peak Flow Calculations
1-yr, 24-hr rainfall depth 3.00 in
1-yr, 24-hr intensity 0.10 in/hr
Pre-development 1-yr, 24-hr runoff 0.05 ft3lsec
Post-development 1-yr, 24-hr runoff 0.12 ft3lsec
Pre/Post 1-yr, 24-hr peak control 0.07 ft3lsec
Storage Volume: Non-SA Waters
Minimum required volume 3,724.00 ft3
Volume provided (temporary pool volume) 5,688.00 ft3 OK
Depth of temporary pool/ponding depth (DPiant,) 12.00 in OK
Drawdown time 2.74 days OK
Diameter of orifice 1.13 in OK
Coefficient of discharge (Co) used in orifice diameter
0.60 (unitless)
calculation
Driving head (Ho) used in the orifice diameter calculation 0.33 ft Provide calculations to support this driving head.
Storage Volume: SA Waters Parameters
1.5" runoff volume ft3
Pre-development 1-yr, 24-hr runoff volume ft3
Post-development 1-yr, 24-hr runoff volume ft3
Minimum volume required ft3
Volume provided ft3
Form SW401 -Wetland-Rev. 3 Parts I and II. Project Design Summary, Page 1 of 3
Permit Number
(to be provided by DWQ)
Surface Areas of Wetland Zones
Surface Area of Entire Wetland 5,688.00 ft2 OK
Shallow Land 2,225.00 ft 2 OK
The shallow land percentage is: 0.39%
Shallow Water 2,328.00 ft2 OK
The shallow water percentage is: 0.41 %
Deep Pool
Forebay portion of deep pool (pretreatment) 738.00 ft2 OK
The forebay surface area percentage is: 0.13%
Non-forebay portion of deep pool 397.00 ft2 OK
The non-forebay deep pool surface area percentage is: 0.07%
Total of wetland zone areas 5,688.00 ft2 OK
Add or subtract the following area from the zones 0.00 ft2
Topographic Zone Elevations
Temporary Pool
Shallow Land (top) 194.60 fmsl
Permanent Pool
Shallow Water (top) 193.60 fmsl
Deep Pool (top) 193.10 fmsl
Most shallow point of deep pool's bottom 191.00 fmsl
Deepest point of deep pool's bottom 191.00 fmsl
Design must meet one of the following two options:
This design meets Option #1,
'
N (Y or N)
inches below SLWT, If yes:
Deep pool is 6
SLWT (Seasonally Low Water Table) n/a fmsl OK
This design meets Option #2,
Has a clay liner
If yes:
Depth of topsoil above clay liner 4.00 in
Topographic Zone Depths
Temporary Pool
Shallow Land 12.00 in OK
Permanent Pool
Shallow Water 6.00 in OK
Deep Pool (shallowest) 25.20 in OK
Deep Pool (deepest) 25.20 in OK
Planting Plan
Are cattails included in the planting plan? N (Y or N) OK
Number of Plants in planting plan recommended:
Herbacious (4'inch diameter) 174
Shrubs/small trees (1 gallon or larger) 116
Trees (1.5" dbh) 29
Number of Plants in planting plan provided (several species of
each plant type are recommended):
Herbacious (41inch diameter) 676 OK
Shrubs/small trees (1 gallon or larger) 116 OK
Trees (2.5" dbh) 29 OK
Form SW401-Wetland-Rev.3 Parts I and II. Project Design Summary, Page 2 of 3
Permit Number
(to be provided by DWQ)
Additional Information
Can the design volume be contained? Y (Y or N) OK
Does volume in excess of the design volume flow evenly Y (Y or N) OK
distributed through a vegetated filter?
What is the length of the vegetated filter? ft
Are calculations for supporting the design volume provided in the Y (Y or N) OK
application?
Is BMP sized to handle all runoff from ultimate build-out? Y (Y or N) OK
Is the BMP located in a recorded drainage easement with a Y (Y or N) OK
recorded access easement to a public Right of Way (ROW)?
The length to width ratio is: 17.11 :1 OK
Approximate wetland length 325.00 ft
Approximate wetland width 19.00 ft

Approximate surface area using length and width provided
6 z
,175.00 ft This approx. surface area is within this number of square
feet of the entire wetland surface area reported above:
Will the wetland be stabilized within 14 days of construction? Y (Y or N) OK
Form SW401-Wetland-Rev.3 Parts I and II. Project Design Summary, Page 3 of 3
Permit No.
(to be provided by DWQ)
III. REQUIRED ITEMS N KUST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Initials Pagel Plan
Sheet No.
Co -3 1. Plans (1" 50' or larger) of the entire site showing:
- Design at ultimate build-out,
- Off-site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Wetland dimensions (and length to width ratio),
- Pretreatment system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
C1?3 Q 2. Plan details (1" = 50' or larger) for the wetland showing:
- Wetland dimensions (and length to width ratio)
- Pretreatment system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build-out,
Off-site drainage (if applicable),
- Overflow device, and
- Boundaries of drainage easement.
C03? 3. Section view of the wetland (1" = 20' or larger) showing:
- Side slopes, 3:1 or lower
- Wetland layers
All wetlands: Shallow land depth, shallow water depth, deep pool depth
Option 1, no clay liner: SLWT depth
Option 2, clay liner: Depth of topsoil on top of liner, liner specifications
4. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing:
- A variety of suitable species (not including cattails),
- Sizes, spacing and locations of plantings,
- Total quantity of each type of plant specified,
- A planting detail,
- The source nursery for the plants, and
- Fertilizer and watering requirements to establish vegetation.

ht?ac??tcc9

Ah W

5. A construction sequence that shows how the wetland will be protected from sediment until the entire
drainage area is stabilized.
6. The supporting calculations (including drawdown calculations).
7. A copy of the signed and notarized operation and maintenance (0&M) agreement.
8. A copy of the deed restrictions (if required).
9. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
SW401-Wetland-Rev.3 Part III, page 1 of 1 .B
OFFICE USE ONLY
Date Received Fee Paid Permit Number(s)
tx D8- 0353 US
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality 401/Wetlands Unit
EXPRESS REVIEW PROGRAM STORMWATER MANAGEMENT APPLICATION FORM
This form may be photocopied for use as an original
1. GENERAL INFORMATION
1. Applicant's name (specify the name of the corporation, individual, etc. who owns the project):
2. Owner/Signing Official's name and title (person legally responsible for facility and compliance):
G gorge M Rose
3. Owner Mailing Address for person listed in item 2 above: P. D . $ox S,3+41
City: Fa ue?r vi t?e State: NL Zip: 0Q9305
Phone Number: (ILO) 48'S- 58aa Fax Number: 916L4'95-S8a3 Email Address: YD&-- c,1r'r• co yA
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on
plans, specifications, letters, inspection and maintenance agreements, etc.):
5. Location of project (Street Address):
San?Ge Dr ',,e- 4 2008
City: ?at?,e e v lie County: DUAL01'1 cN
1yEiLK4p,; AN STOR4da??'ATER R?
6. Directions to project site (from nearest major intersection):
1CA.rY, b ol? n Vn.l? ; !ea kIw. ld) nv4 oVGf -t',, 11V1e Ak? l'Z
G' YOSS i Il6 wiC`r1 C4ti
7. Latitude: 35f5'3. 34' k N Longitude: -7$0 57 / L4S IA I of project
8. Contact person who can answer questions about the project:
Name: Hob1,e5 Telephone Number: °I10 ?83- UD
Fax Number: io Y93-qD 5a Email Address: ?Yic> les Q L b v.Aa . cz,v,r.

1/2008 Version 1.0 Page 1 of 5
II. PERMIT INFORMATION
1. Specify whether project is (check one): X New Renewal Modification
2. If this is a new project, under which local government's jurisdiction does the project fall (e.g. Town of
Cary, City of Raleigh, or Wake County)? '1 v? c7 awe vi
3. Is there a state-approved stormwater management program implemented by the local government or state
under any of the following programs (Check all that apply)?
Phase II Post Construction Water Supply Watershed Neuse or Tar Pamlico NSW
Randleman WSWS USMP Coastal Counties HQW ORW
4. If this application is being submitted for a renewal or modification to an existing permit, list the existing
permit number and its issue date (if known)
5. Specify the type of project (check one):
Low Density X High Density Redevelopment General Permit Other
6. Additional Project Requirements (check the ones applicable):
CAMA Major _X_Sedimentation/Erosion Control 404/401 Permit - NPDES Stormwater -Other
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748
III. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
S?vrw? er u11
co 26 o w ir 4 i C.
6e i
rimnoN A n( il[ 6 shYJ 6, - And 1 0 1 1 d or1?;4e,
6.01-erl .) .iu v....MF t?%M AisAMVQQ_ v%& Yb_c!, L;,,--A
2. Stormwater runoff from this project drains to the -(AOc Fear River basin.
3. Total Project Area: U. (06 acres 4. Project Built Upon Area: 33.5
5. How many drainage areas does the project have? Q
6. Complete the following information for each drainage area. If there are more than two drainage areas in
the project, attach an additional sheet with the information for each area provided in the same format as
below.
Basin Information

Receiving Stream Name Drainage Area I

T`''?'^k0`'r`J
nv r Cn'tc 1' Drainage Area 2
Uy.v?wvn? lrylk>??0. YO

13 COalsr C fee
Receiving Stream Class Ig_3) -ay -5 -5
Drainage Area 9
Existing Impervious* Area $71a- (}n b? rwr?ove
Proposed Impervious*Area x 4315-70 $4 6-71
% Impervious* Area (total) 6-7. 1 $ 1.3
1/2008 Version 1.0 Page 2 of 5
Impervious* Surface Area
On-site Buildings Drainage Area I
q S& Drainage Area 2
9, 4 41
On-site Streets
On-site Parking a 3 3 S`} '3 4 93
On-site Sidewalks -Z 5 gp 214 5
Other on-site 00
Off-site
Total: LA3 S-10 Total: 5 L t t.-7 Cf
* Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking
areas, sidewalks, gravel areas, etc.
7. How was the off-site impervious area listed above derived?
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a
table listing each lot number, size and the allowable built-upon area for each lot must be provided as an
attachment.
1. The following covenants are intended to ensure ongoing compliance with state riparian buffer
authorization or General Certification numbers as issued by the
Division of Water Quality. These covenants may not be changed or deleted without the consent of the
State.
2. No more than square feet of any lot shall be covered by structures or impervious
materials. Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material
but do not include wood decking or the water surface of swimming pools.
3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossing.
4. Built-upon area in excess of the permitted amount requires a modified water quality certification prior to
construction.
5. All permitted runofffrom outparcels or future development shall be directed into the permitted stormwater
control system. These connections to the stormwater control system shall be performed in a manner that
maintains the integrity and performance of the system as permitted.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this
project shall include all the applicable items required above, that the covenants will be binding on all parties
and persons claiming under them, that they will run with the land, that the required covenants cannot be
changed or deleted without concurrence from the State, and that they will be recorded prior to the sale of any
lot.
1/2008 Version 1.0 Page 3 of 5
V. SUPPLEMENT FORMS
The applicable stormwater management supplement form(s) listed below must be submitted for each BMP
specified for this project. The most current form(s) located on the 401 /wetlands unit website at
http://h2o.enr.state.nc.us/suibmp forms.htm must be used. Please include both the Design Summary and the
Required Items Checklist along with all required items and supporting design calculations.
Bioretention Supplement
Wet Detention Supplement
Dry Detention Supplement
Level Spreader/Filter Strip/Restored Buffer Supplement
Stormwater Wetland Supplement
Grassed Swale Supplement
Sand Filter Supplement
Infiltration Trench Supplement
Infiltration Basin Supplement
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the DWQ Central Office.
Please indicate that you have provided the following required information by initialing in the space
provided next to each item. Initials
• Original and two copies of the Express Review Stormwater Management Application 00"
• Signed and Notarized Inspection and Maintenance Agreement
• Three copies of the applicable Supplement Form(s) for each BMP --
• Application processing fee (payable to DWQ) e ?ZA'
• Detailed narrative description of stormwater treatment/management GN^'
• Three copies of plans and specifications, including: C""'
- Development/Project name
- Engineer and firm
-Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands and streams delineated, or a note on plans that none exist
- Existing drainage (including off-site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
1/2008 Version 1.0 Page 4 of 5
VII. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individual or firm): ?iq?1 ?e uc vin ev.??n_ r L G
Mailing Address: P, (? • f3o X 53? y
City: ?:a.u.4e-' i 1 r- State: N C? Zip: x2305
Phone: !D '465- 58d,-,4 Fax: (°t10 4195- 58x3
VIII. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item 2) e oy ag M. rwSei
certify that the information included on this application form is, to the best iq? my knowledge, correct and that
the project will be constructed in conformance with the approved plans, that the required deed restrictions and
protective covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H.1000.
Signature: A-? - Date: l b . Z1 ??j
U
1/2008 Version 1.0 Page 5 of 5
Stormwater Runoff Calculations
Pond Routing
For
Stormwater Wetland SW-A
Summerlyn Apartments
Developer:
Highland Development Partners, LLC
C R94
, .4
,%?0,.•d?ESSIp ,
i
Y
31 5
J
1tv
10-17-a9
Prepared by:
ENGINEERING - SURVEYING - DESIGNING - DRAFTING
Larry King & Associates, R.L.S., P.A.
P.O. Box 53787
1333 Morganton Road, Suite 201
Fayetteville, North Carolina 28305
P. [phone] F. [phone]
www.LKandA.com
9

Anti-Flotation Sizing Calculations
Project Name: Summerlyn
Pond Designation: SW-A
Riser Diameter = 8 in (circular)
Dimensions of Riser= ft
Depth of pond = 3 ft
Required Factor of Safety = 1.2
Cross Sectional Area of Riser
Circular = 0.348889 sf
Rectangular= 0 sf
Volume of Water Displaced
Depth of pond * Cross-sectional area
1.046667 cf
Weight of Water Displaced
(assuming weight of water = 62.4 Ib/cf)
62.4 * Volume of water Displaced
65.31 lb
Minimum Weight of Anti-Flotaton Device
FS * WoW Displaced
78.37 lb
Riser Base Provided
2 ft x 2 ft x 1.5 ft (depth)
Weight of concrete assumed 150 Ib/cf
Weight of Base Provided = 900.00 lb
FS Provided = 13.78 ok
1/11
Project Name:
Outlet:
Stormwater Wetland Sizing Criteria
Summerlyn Apartments
SW-A
Calculate Runoff Coefficient (The Simple Method)
A= 1.49 acres Watershed area
Ai= 1.00 Impervious area
la= 0.67 Impervious fraction
Rv=0.05+0.9*la
Rv= 0.65 Runoff Coefficient
Calculate Runoff Volume Required to be Controlled
Rd= 1 in Design storm rainfall depth (typically 1" or 1.5")
V=3630*Rd*Rv*A
V= 3537 cf Volume of runoff that must be
0.97 Ac in controlled for specified design storm
Vnlume Prnvidpd
Basin Volume

Stage Contour
Elev. Diff Area Incr. Vol. ccum.
Vol.
ft (ft) sf (cf) W
0.0 0.0 4,575
1.0 1.0 6,320 5,448 5,448

Permanent Pool Elevation (SA)
Temp Pool Elevation
vvetiana Size=bizusT
Zone Sizing Provided
Deep Pools
Non-forebay area: 442 sf 7 % of SA 470 sf
Forebay area: 822 sf 13 % of SA 819 sf
Shallow water: 2528 sf 40 % of SA 2548 sf
(low marsh)
Shallow land: 2528 sf 40 % of SA 2483 sf
(high marsh)
3/
9
Drawdown Orifice Sizing
Project Name: Summerlyn Apartments
Outlet: SW-A
Pond Storage= 3,537 cf
Pond Depth(h)= 1 ft
Drawdown Time= 2.5 days
Cd= 0.6 Coefficient of Discharge (typical 0.6)
g= 32.2 ft/sec^2 Gravity
The Orifice Equation
Q= Cd A Sgrt(2 g h) Based on H=h/3
Rearrange to solve for A, the minimum orifice area needed to meet drawdown requirements
Q= 0.02 cfs Based on pond volume and desired drawdown time
A= 0.00589 sf 0.85 si
Number of Orifices= 1
Minimum diameter to meet area
d=
Use:
1.04 inch diameter orifice
1.125 " diameter orifice
0.0069 sf
Check Outflow time
Q= Cd A Sgrt(2 g h)
Q=
Drawdown time=
Based on H=h/3
0.02 cfs
2.13 days OK
10/17/2008
414
QP
P=
S=
Q?=
TP
Vol=1.39 * Qp * Tp
Vol= 15,794 cf
Skw?w?er??v? S'W- A
Time to Peak Calculations
8.3 cfs DA=
4.22 in
Cn=ab+cx^d
b+x^d
Cn=
1.41
2.90 in
22.82 min
Rational C=
(10yr/6hr storm)
a= 50.82581
b= 1.461704
C= 165.6338
d= 1.350661
88 x= Rational C
(1000/CN)-10
Volume of Runoff
1.5 acres
0.76
5l
q
Table of Contents s New.gpw
Hydraflow Hydrographs by Intelisolve Friday, Oct 17 2008, 4:38 PM
10 -Year
Summary Report ................................................................................................................. 1
Hydrograph Reports ........................................................................................................... 2
Hydrograph No. 1, Rational, SW-A Runoff ....................................................................... 2
Hydrograph No. 2, Reservoir, SW-A ................................................................................. 3
(P/ 'j
Hydrograph Summary Report
Hyd.
No. Hydrograph
type
(origin) Peak
flow
(cfs) Time
interval
(min) Time to
peak
(min) Volume

(cult) Inflow
hyd(s) Maximum
elevation
(ft) Maximum
storage
(cult) Hydrograph
description
1 Rational 8.30 1 22 15,086 ---- ------ ------ SW-A Runoff
2 Reservoir 5.39 1 35 10,914 1 198.15 8,243 SW-A
3 Rational 9.55 1 23 17,591 ---- ------ ------ SW-B Runoff
4 Reservoir 7.54 1 31 13,937 3 195.00 7,134 SW-B
New.gpw Return Period: 10 Year Friday, Oct 17 2008, 4:38 PM
Hydraflow Hydrographs by Intelisolve
H'ydrograph Plot
Hydraflow Hydrographs by Intelisolve Friday, Oct 17 2008, 4:38 PM
Hyd. No. 1
SW-A Runoff
2
Hydrograph type = Rational Peak discharge = 8.30 cfs
Storm frequency = 10 yrs Time interval = 1 min
Drainage area = 1.500 ac Runoff coeff. = 0.76
Intensity = 7.279 in/hr Tc by User = 5.00 min
IDF Curve = County.IDF Asc/Rec limb fact = 4.5/7.62
Hydrograph Volume = 15,086 cuft
SW-A Runoff
Q (cfs) Hyd. No. 1 -- 10 Yr Q (cfs)
10.00
8.00
6.00
4.00
2.00
0 00
10.00
8.00
6.00
4.00
2.00
0.00
0.0 0.2 0.3 0.5 0.7 0.8 1.0 1.2
Hyd No. 1 Time (hrs)
1/1
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Friday, Oct 17 2008, 4:38 PM
Hyd. No. 2
SW-A
Hydrograph type = Reservoir Peak discharge = 5.39 cfs
Storm frequency = 10 yrs Time interval = 1 min
Inflow hyd. No. = 1 Max. Elevation = 198.15 ft
Reservoir name = SW-A Max. Storage = 8,243 cuft
Storage Indication method used.
Hydrograph Volume = 10,914 cuft
3
SW-A
Q (cfs) Hyd. No. 2 -- 10 Yr Q (cfs)
10.00
8.00
6.00
4.00
2.00
0.00
10.00
8.00
6.00
4.00
2.00
0.00
0.0 0.2 0.3 0.5 0.7 0.8 1.0 1.2 1.3 1.5 1.7 1.8 2.0 2.2 2.3 2.5
Hyd No. 2 Hyd No. 1 Time (hrs)
Q?9
Stormwater Runoff Calculations
Pond Routing
For
Stormwater Wetland SW-13
Summerlyn Apartments
Developer:
Highland Development Partners, LLC
CANO
oassio,,!ti9
SEA
Prepared by:
ENGINEERING - SURVEYING - DESIGNING - DRAFTING
Larry King & Associates, U.S., P.A.
P.O. Box 53787
1333 Morganton Road, Suite 201
Fayetteville, North Carolina 28305
P. [phone] F. [phone]
www.LKandA.com
11q
Anti-Flotation Sizing Calculations
Project Name: Summerlyn
Pond Designation: SW-B
Riser Diameter =
Dimensions of Riser=
Depth of pond =
Required Factor of Safety
=
8 in (circular)
3ft
1.2
Cross Sectional Area of Riser
Circular = 0.348889 sf
Rectangular= 0 sf
Volume of Water Displaced
Depth of pond * Cross-sectional area
1.046667 cf
Weight of Water Displaced
(assuming weight of water = 62.4 Ib/cf)
62.4 * Volume of water Displaced
65.31 lb
Minimum Weight of Anti-Flotaton Device
FS * WoW Displaced
78.37 lb
Riser Base Provided
2ft x 2ft x
Weight of concrete assumed 150 Ib/cf
Weight of Base Provided = 900.00 lb
FS Provided = 13.78 ok
ft
1.5 ft (depth)
9
Stormwater Wetland Sizing Criteria
Project Name: Summerlyn Apartments
Outlet: SW-13
Calculate Runoff Coefficient
A= 1.60 acres
Ai= 1.30
la= 0.81
Rv=0.05+0.9*la
Rv= 0.78
(The Simple Method)
Watershed area
Impervious area
Impervious fraction
Runoff Coefficient
Calculate Runoff Volume Required to be Controlled
Rd= 1 in Design storm rainfall depth (typically 1" or 1.5")
V=3630*Rd*Rv*A
V= 4538 cf
1.25 Ac in
Volume Provided
Volume of runoff that must be
controlled for specified design storm
Basin Volume

Stage Contour
Elev. Diff Area Incr. Vol. ccum.
Vol.
(ft) (ft) (sf) cf) cf)
0.0 0.0 3,711
1.0 1.0 5,688 4,700 4,700

Permanent Pool Elevation
Overflow Weir Elevation
Zone Sizinq Requirements Provided
Deep Pools
Non-forebay area: 398 sf 7 % of SA 397 sf
Forebay area: 739 sf 13 % of SA 738 sf
Shallow water: 2275 sf 40 % of SA 2328 sf
(low marsh)
Shallow land: 2275 sf 40 % of SA 2225 sf
(high marsh)
3??
Project Name:
Outlet:
Pond Storage=
Pond Depth(h)=
Drawdown Time=
Cd=
9=
The Orifice Equation
Drawdown Orifice Sizing
Summerlyn Apartments
SW-B
4,538 cf
1ft
2.5 days
0.6 Coefficient of Discharge (typical 0.6)
32.2 ft/sec^2 Gravity
Q= Cd A Sgrt(2 g h) Based on H=h/3
Rearrange to solve for A, the minimum orifice area needed to meet drawdown requirements
Q= 0.02 cfs Based on pond volume and desired drawdown time
A= 0.00756 sf 1.09 si
Number of Orifices= 1
Minimum diameter to meet area
d=
Use:
Check Outflow time
Q= Cd A Sgrt(2 g h)
Q=
Drawdown time=
1.18 inch diameter orifice
1.125 " diameter orifice
Based on H=h/3
0.02 cfs
2.74 days OK
0.0069 sf
10/17/2008
1/9
?VWY11M2VI?cc??1?/? 9W'p
Time to Peak`Calculations
Qp 9.6 cfs DA=
Rational C=
P= 4.22 in (10yr/6hr storm)
Cn=ab+cx^d a= 50.82581
b + x^d b= 1.461704
C= 165.6338
d= 1.350661
Cn= 90 x= Rational C
S= 1.08 (1000/CN)-10
Q= 3.15 in
Tp 23.00 min
Volume of Runoff
Vol=1.39 * Qp * Tp
Vol= 18,322 cf
1.6 acres
0.82
5/9
Table of Contents S _ New.gpw
Hydraflow Hydrographs by Intelisolve Friday, Oct 17 2008, 4:38 PM
10 - Year
Summary Report ................................................................................................................. 1
Hydrograph Reports ........................................................................................................... 2
Hydrograph No. 3, Rational, SW-B Runoff ....................................................................... 2
Hydrograph No. 4, Reservoir, SW-B ................................................................................. 3
??g
Hydrograph Summary Report
Hyd.
No. Hydrograph
type
(origin) Peak
flow
(cfs) Time
interval
(min) Time to
peak
(min) Volume

(cuft) Inflow
hyd(s) Maximum
elevation
(ft) Maximum
storage
(cuft) Hydrograph
description
1 Rational 8.30 1 22 15,086 ---- ------ ------ SW-A Runoff
2 Reservoir 5.39 1 35 10,914 1 198.15 8,243 SW-A
3 Rational 9.55 1 23 17,591 ---- ------ ---- SW-B Runoff
4 Reservoir 7.54 1 31 13,937 3 195.00 7,134 SW-B
,New.gpw Return Period: 10 Year Friday, Oct 17 2008, 4:38 PM y?9
Hydraflow Hydrographs by Intelisolve
2
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Friday, Oct 17 2008, 4:38 PM
Hyd. No. 3
SW-B Runoff
Hydrograph type = Rational Peak discharge = 9.55 cfs
Storm frequency = 10 yrs Time interval = 1 min
Drainage area = 1.600 ac Runoff coeff. = 0.82
Intensity = 7.279 in/hr Tc by User = 5.00 min
IDF Curve = County.IDF Asc/Rec limb fact = 4.6/7.68
Hydrograph Volume = 17,591 cult
Q (cfs)
10.00
SW-B Runoff
Hyd. No. 3 -- 10 Yr

8.00
6.00
4.00
2.00
0.00
Q (cfs)
10.00
6.00
6.00
4.00
2.00
0.00
0.0 0.2 0.3 0.5 0.7 0.8 1.0 1.2
Time (hrs)
Hyd No. 3
$j
H?ydrograph Plot
3
Hydraflow Hydrographs by Intelisolve Friday, Oct 17 2008, 4:38 PM
Hyd. No. 4
SW-B
Hydrograph type = Reservoir Peak discharge = 7.54 cfs
Storm frequency = 10 yrs Time interval = 1 min
Inflow hyd. No. = 3 Max. Elevation = 195.00 ft
Reservoir name = SW-B Max. Storage = 7,134 cuft
Storage Indication method used.
Q (cfs)
10.00
8.00
6.00
4.00
2.00
0.00
SW-B
Hyd. No. 4 --10 Yr
Hydrograph Volume = 13,937 cuft
Q (cfs)
10.00
8.00
6.00
4.00
2.00
0.00
0.0 0.2 0.3 0.5 0.7 0.8 1.0 1.2 1.3 1.5
Hyd No. 4 Hyd No. 3 Time (hrs)
4 ?q