20071061 Ver 1_More Info Received_20070702

LAND ~X p p'1 - t D b ~
~~ PLANNING
- ASSOCIATES, INC.
Letter of Transmittal
TO: Ms. Cyndi Karoly -
2321 Crabtree Boulevard, Suite 250
Raleigh, North Carolina 27699
Land Planning Associates Inc. is forwarding the following information via:
Hand Mail D UPS Express Mail
We are sending you : ~ Prints Reproducibles
D 24 x 36 24 x 36
30x42 30x42
Fax
D Other
D Letter/Memo
~ 8 '/2 x 11
COPIES DATE DRAWING # DESCRIPTION
3 6/29/07 Response Letter
3 6/29/07 Revised SW M Report
3 6/29/07 C1,2,3,5-12 Civil Plans
3 6/29-07 Wet Detention Basin Supplement Pond A&B
These are Transmitted : For Approval For Your Information D For Review & Approval
As Requested By:
REMARKS: Thanks for your review of this project.
Signed:
Date: June 29, 2007
Project # : 6.023
Project: Whiteville, NC
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,i~JL L ZOOI

Phone:[phone] FaX:[phone] Add~ess:110 West 1st Avenue, Suite A • Easley, SC 29640

LAND
.~.~~ PLANNING
= ASSOCIATES, INC.
PATRICK M. RIVERS, PE
110 West 1st Avenue, Suite A • Easley, SC 29640
Fax: [phone] E-Mail: patrick~lpa-inc.net
Phone:864~242~6072 n/obi~e.864.6304544

LANb
~• PLANNING
= ASSOCIATES, INC.
June 29, 2007
Ms. Cyndi Karoly
OversightlExpress Review Permitting Unit
2321 Crabtree Boulevard, Suite 250
Raleigh, North Carolina 27699
RE : Lowe's of Whiteville, NC
LPA Job Number 6.023
DWQ EXP No. 07-1061
Dear Ms. Karoly:
~~(,(~ 01 - 1 ~ to I
Land Planning Associates, Inc. has received the comments regarding our
express application review dated June 25, 2007. The following are item by item
response to the comments.
7. The NC Secretary of State's Office does not have a record ofMr. John
Witherspoon as an agent ofJemsite Deve/opment, LLC. Mr. Jeffrey E.
F/attery is recognized as the authorized agent. /f this information is
incorrect, p/ease exp/ain and update your information on record.
Jemsite Development, LLC. will address this statement.
2. The app/icant must pro vide an origins/signature; photocopies are not
acceptab/e.
Jemsite Development, LLC. will address this statement.
3. The tots/site is 74. ~7acres. You have indicated on the stormwater
management plan two drainage areas tots/ing 73.3 acres. The stormwater
Management P/an & Erosion Contro/Report indicates four drainage areas at
the pre-de ve/opment phase (with no acreage determined for drainage area
2) with apost-deve/opment condition indicating three drainage areas and
three detention ponds.
Drainage Area 2 and 3 drain into SWM Pond B which is one pond
connected by three pipes (12" RCPs) under the entrance drive.
a. You must provide post-construction stormwater management for the
entire site.
The post development area 4 (0.8 Ac) is the vegetated area sloping away
from the parking area and the back side of the SWM ponds.
Pnone:864.242.6072 F~X:208.730.8214 Aaare5s:110 West 1st Avenue, Suite A • Easley, SC 29640

Ms. Cyndi Karoly
June 29, 2007
Page 2
b. P/ease exp/ain the discrepancy in the acreage
Figure 1 of the report shows the predevelopment drainage area map.
Pre Area 1 = 5.34 Ac
Pre Area 2 = 6.13 Ac
Pre Area 3 = 2.29 Ac
Pre Area 4 = 0.40 Ac
Total Pre Areas = 94.96Ac
Figure 2 of the report shows the post-development drainage area map.
Post Area 1 = 8.07 Ac
Post Area 2 = 3.31 Ac
Post Area 3 =1.99 Ac
Post Area 4 = 0.79 Ac
Total Post Areas = 74.76 Ac
Post area 1 drains to SWM pond "A." Post areas 2 and 3 drain to SWM
Pond "B." Post area 4 discharges directly to the adjacent property. This area
is vegetated slop adjacent to the property line.
c. P/ease provide a drainage are map and indicate the amount ofacreage
in each drainage area in the Stormawter Management & Erosion Control
Report.
Drainage areas with sizes are provided as figure 1 & 2 in the stormwater
Management and Erosion Control Report.
4. You have inc/uded the erosion contro/sheets, however, it does not appear
that you have sent construction p/ans for the permanent post-construction)
stormwater management. This show/d inc/ude: drainage area for each wet
pond c%ar/y de/ineated (and match with the supp/ement sheets and
stormwater management report); wet pond p/ans; pond section detai/s;
out/et structure detai/s; vegetated she/fp/anting p/an; 30-foot vegetative
fi/ter (including a%vations, inverts, slopes and flow spreader mechanism.)
The post-construction stormwater management details for the SWM
ponds will now be included in the erosion control details on C-12. The
vegetative shelf has been called out to be seeded as `Red Top Grass
Seed (Argosits Alba)' and the outlet rip-rap dimensions have been called
out both on C-11 in the erosion control details. The 30-foot vegetative
filter detail will not be included because we redesigned the basins to
remove 90% TSS.
5. A/l roof drainage must be directed to the post-construction stormwater
BMPs. Show the roof drain col%ction lines on the construction plans.
The storm runoff from the roof drains to the rear of the building then to
the SWM Pond A.
6. Please provide information on the seasonal high water tab/e.

Ms. Cyndi Karoly
June 29, 2007
Page 3
According the Subsurface Exploration & Geotechnical Engineering
Evaluation by EAS Professionals, INC. the ground water table was
reached at a depths ranging from 3 ft to 13 feet. The NRCS Soil survey
lists the water table to range from 2.5 ft to 5 ft in the vicinity of the SWM
Pond A and 3 ft to 5 ft in the vicinity of the SWM Pond B.
7. Please indicate which NCDENR Stormwater BMP Manual you are
referencing.
In the design of the wet ponds (SWM A & B) the NCDENR Stormwater
BMP Manual, Section 10 -Wet Detention Basin (revised: 05-15-07) was
used. The example followed was from the NCDENR Stormwater BMP
Manual, April 1999, section 1.4 - Examp/e Piedmont Basin Design The
manual used for the design of the sediment basins and inletloutlet
protection was the Erosion and Sediment Control Planning and Design
Manual (revised: 06-01-06).
S You have indicated two wet detention pond to treat post-construction
Stormwater runoffon this project. There are severa/deficiencies in the
design of these ponds.
a. Pond A (Wet Detention Supp/ement Sheet):
i. P/ease indicate a temporary poo/ a/evation
There was a typing error in the Appendix C sheets. The temporary pool
elevation is 88.0, with the emergency spillway at 96.0 and 1 foot of free
board. The elevations are located in the Stormwater management &
erosion control report, pages 5-6 and Appendix C which have been
revised.
ii. Please reduce your forebay; an acceptab/e range is 78%-22% of
the permanent poo/ vo/ume.
The forebay volume has been reduced to the allowable 20% (-/+ 2%) of
the permanent pool volume.
iii. P/ease exp/ain your SA/DA ratio of4.32
SA/DA ratio for Pond A is incorrect. The correct value should be 5.14.
This value was obtained from the 90% TSS table:10-3, by interpolating
between 70% IMP and 80% IMP. The SA/DA ratio values corresponding
to these IMP percentages are 5.0 and 5.7 respectively. The
impervious surface for the area draining to Pond A is 72%.
iv. P/ease exp/ain your Design Rainfa// of 3.85 inches. The
requirements for the OWQ are either 7"storm or 7.5"for Coastal
Stormwater
The 3.85 inches of rainfall is the 2 year 24 hour rainfall volume used to
calculate runoff volume for the 2 year SCS hydrograph. An assumed 1"
of rainfall was used in the first inch of runoff calculations for the
temporary basins.

Ms. Cyndi Karoly
June 29, 2007
Page 4
v. Please exp/ain why a 30-foot vegetative fi/ter is not provided at the
out/et. P/ease explain the TSS chart being used - 85% TSS
requires a vegetated fi/ter; 90% does not. You must provide non-
erosive flow for the 90 year storm in the vegetated filter.
SWM Pond A has been redesigned to accommodate for 90%TSS
removal, therefore no vegetative filter strip will be added.
vi. Please include a p/anting p/an for the aquatic she/f (/ittora/she/~.
In the erosion control details the 10' aquatic shelf has been called out to
be seeded with `Red Top Grass Seed (Argosits Alba)."
vii. Please explain why you are not recording a drainage easement for
each basin.
We were unaware a drainage easement was needed, but one will be
included for both ponds on the revised plans. This will be recorded once
approved.
viii. P/ease explain why there is no mechanism for the draining the
basin for maintenance or emergencies.
A drainage pump will be used as shown on revised drawings (C-11).
ix. P/ease exp/ain the pre-treatment you are providing other than the
forebay.
The pond forebay is used as pre-treatment.
b. Pond B (Wet Detention Supp/ement SheetJ:
i. P/ease exp/ain why the e/e vations for the bottom of the basin and
the permanent poo/are the same.
There was a typing error in the Appendix C sheets, which have been
revised. The bottom normal pool elevation is 84 and a top elevation of
90.0. The temporary pool has a bottom elevation of 90.0, with the
emergency spillway located at 94.0 and 1 foot of freeboard.
ii. P/ease exp/ain your SA/DA ratio of4.4.
SA/DA ratio for Pond B has been redesigned. The new value should be
4.4. This value was obtained from the 90% TSS table:10-3, by
interpolating between 70% IMP and 80% IMP. The SA/DA ratio values
corresponding to these IMP percentages are 3.9 and 4.6 respectively.
The % impervious surface for the drainage area is 76.8%.
iii. P/ease your Design Rainfa// of 3.85"
The 3.85 inches of rainfall is the 2 year 24 hour rainfall volume used to
calculate runoff volume for the 2 year SCS hydrograph. An assumed 1"
of rainfall was used in the first inch of runoff calculations for the
temporary basins.

Ms. Cyndi Karoly
June 29, 2007
Page 5
iv. P/ease explain why a 30-foot vegetative filter is not provided at the
out/et
SWM Pond B has been redesigned to accommodate for 90% TSS
removal, therefore no vegetative will be added.
v. Please inc/ude a p/anting p/an for the aquatic she/f (/ittora/she/t).
In the erosion control details the 10' aquatic shelf has been called out to
be seeded with `Red Top Grass Seed (Argosits Alba)."
vi. P/ease exp/ain whyyou are not recording a drainage easement for
each basin.
We were unaware a drainage easement was needed, but one will be
included for both ponds on the revised plans. This will be recorded once
approved.
vii. P/ease exp/ain why there is no mechanism for draining the basin
for maintenance of emergencies.
A drainage pump will be used as shown on revised drawings (C-11).
viii. P/ease exp/ain the pre-treatmentyou are providing other than the
forebay.
The pond forebay is used as pre-treatment.
Thank you for reviewing these plans. Please don't hesitate to call or email with
any questions or comments.
Best regards,
Patrick Rivers PE

FINANCIAL RESPONSIBILITY/OWNERSHIP FORM
SEDIMENTATION POLLUTION CONTROL ACT
EXPRESS PERMITTING OPTION
No person may initiate any land-disturbing activity on one or more acres as covered by the Act before this
form and an acceptable erosion and sedimentation control plan have been completed and approved by the
Land Quality Section, N.C. Department of Environment and Natural Resources. (Please type or print and, if
the question is not applicable or the a-mail and/or fax information unavailable, place N/A in the blank.)
Part A.
1. Project Name: Lowe's of Whiteville, NC
2. Location of land-disturbing activity: County: Columbus City or Township: Whiteville
Highway/Street: NC hwy 130 Latitude 34° 18. 06.46 Longitude 78° 43.01.96
3. Approximate date land-disturbing activity will commence: July 2007
4. Purpose of development (residential, commercial, industrial, institutional, etc.): commercial
5. Total acreage disturbed or uncovered (including off-site borrow and waste areas): 14.21
6. Amount of fee enclosed: $ .The Express Permitting application fee is a dual
charge. The normal fee of $50.00 per acre (rounded up to the next acre) is assessed without a ceiling
amount. In addition, the Express Permitting supplement is $250.00 per acre up to eight acres, after
which the Express Permitting supplemental fee is a fixed $2,000.00 (Example: 9 acres total is $2,450).
7. Has an erosion and sediment control plan been filed? Yes No Enclosed: X
8. Person to contact should erosion and sediment control issues arise during land-disturbing activity:
Name John Witherspoon Jemsite Development. LLC
E-mail address:john.witherspoonCa)_iemsitedevelopment.com
Telephone# [phone] Cell #
Fax # [phone]
9. Landowner(s) of Record (attach accompanied page to list additional owners):
Jemsite Development, LLC 336-846-7191
Name Telephone
336-246-3475
Fax Number
P.O. Box 1000 _1608 US Hwv 221 North
Current Mailing Address Current Street Address
Jefferson NC 28640 Jefferson NC 28640
City State Zip City State Zip
10. Deed Book No. See Attached Page No. Provide a copy of the most current deed.
Part B.
1. Person(s) or firm(s) who are financially responsible for the land-disturbing activity (Provide a
comprehensive list of all responsible parties on an attached sheet):
Jemsite Development, LLC
Name
John.witherspoonCa).jemsitedevelopment.com
E-mail Address
P.O. Box 1000
Current Mailing Address
Jefferson NC 28640
City State Zip
1608 US Hwv 221 North
Current Street Address
Jefferson NC 28640
City State Zip

Telephone [phone] Fax Number 336-846-1677
2. (a) If the Financially Responsible Party is not a resident of North Carolina, give name and street address
of the designated North Carolina Agent:
Name
Current Mailing Address
City State Zip
Telephone
E-mail Address
Current Street Address
City State Zip
Fax Number
(b) If the Financially Responsible Party is a Partnership or other person engaging in business under an
assumed name, attach a copy of the Certificate of Assumed Name. If the Financially Responsible
Party is a Corporation, give name and street address of the Registered Agent:
Jeff Flatte
Name of Registered Agent
P.O. Box 1000
Current Mailing Address
Jefferson NC 28640
City State Zip
Telephone [phone]
ieff.flattery(cr~.iemsitedevelooment.com
E-mail Address
1608 US Hwy 221 North
Current Street Address
Jefferson NC 28640
City State Zip
Fax Number 336-846-1677
(c) In order to facilitate Express Permitting, it is necessary to be able to contact the Engineer or other
consultant who can assist in providing any necessary information regarding the plan and its preparation:
Land Planning Associates of NC, Inc
Engineering Firm or other consultant
Patrick(a)Ipa-inc. net
E-mail Address
Patrick M. Rivers, P.E.
Individual contact person (type or print)
864-242-6072 208-730-8214
Telephone Fax Number
The above information is true and correct to the best of my knowledge and belief and was provided by me
under oath (This form must be signed by the Financially Responsible Person if an individual or his attorney-in-
fact, or if not an individual, by an officer, director, partner, or registered agent with the authority to execute
instruments for the Financially Responsible Person). I agree to provide corrected information should there by
any change in the information provided herein.
Jeff Flattery
Type or print name
Signatu
President
Title or Authority
6/26/07
Date
I, 11~ Q 1'• ~ , aNotary-Public of the County of ~ YWC.
State of North Carolina, hereby certify that ~T2~F~ c ~1.1~LLV1 aPPeared personally
before me this,~yand being duly sworn acknowledged that the abov form was executed by him.
e`er ••~aSiRAd•a~~~••~~~~~rial seal, this day of , 20~
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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. Initals
• Original and two copies of the Express Review Stormwater Management Application
• Signed and notarized Operation and Maintenance Agreement _ " ~ ~.n~
• Three copies of the applicable Supplement Form(s) for each BMP u~- h..
• Application processing fee (payable to NCDENR) ~ ,~IetoA t~~
• Detailed narrative description of Stormwater treatment/management (eL 1
• Three copies of plans and specifications, including: ~._.
- 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)
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): }~~ZIGc_ ~ivC~i 5 - G~4ND '~t,A~Nn~i~, A~SSou.~7~~j
Mailing Address: (/D (,~1 /`~.4vENU~ Spa' ,~
City: ~q-,S~,~Y State: 3G Zip: Z~f~i.{-D
Phone: (8~ ) 2~2-1072 Fax: ( 2d~ ) 7.~0 - 82iµ
VIII. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General7nformation, item 2) ~~~ r-~
certify that the information included on this application 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 restrictions and protective covenants
will be recorded, and that the proposed project complies with the requirements of 15A NCAC 2H .1000
Date: ~/21~07
9/2004 Version 1.0 Page 4 of 4

1
AGENT CERTIFICATION OF AUTHORIZATION
I,~~ ~'~1' , representing Jemsite Development, LLC (Jemsite), applicant and
potential developer of the project site located on approximately 14.21 acres and situated
southeast of Highway 130 and Highway 701 in Whiteville North Carolina. Lowe's
Home Centers (Lowe's) has a written agreement with the various property owners to
perform environmental testing and permitting on this project. The isolated wetland is
located on a 2.0 acre parcel owned by S.P. Stanley (Deed Book 281, Page 775). Jemsite
Development LLC has a written contract with Lowe's to develop a home improvement
store on this property. By this Certification of Authorization, Jemsite has authorized Hart
& Hickman, PC to act on the applicant's behalf and take all actions necessary to the
processing, issuance, and acceptance of the wetlands jurisdictional determination and
permits for this project.
Applic t s ture
~/z~/o7
Date
Agent's signature (.~Z9 fD7
June 20, 2007
Date
S:WAA-Matter ProjectsUemsite DevelopmentUEM-034 Whiteville\Wetlands Pertnitting\AGENT CERT.doc

Permit No. ~kP 01-1 b to 1
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form maybe photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stonnwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name: (,~wE S G~ (~ Hr~7~Vc (.-~-E r ~U~
Contact Person: ~A-se~l~ HIV Ep_S Phone Number: (~~) ~~2-° ~0~72
For projects with multiple basins, specify which basin this worksheet applies to: ~'GN`J p-
elevations ~ ~
Basin Bottom Elevation .~ ft.
Permanent Pool Elevation __<~_ ft.
Temporary Pool Elevation ~ ~ ft.
areas
Permanent Pool Surface Area I (1"`,~ sq. ft.
Drainage Area
Impervious Area
~' ,C7~-- ac.
~S , ~ ac.
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DA1
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
Form SWU-102 Rev 3.99
o ~ cu. ft.
2 ,~~~ cu. ft.
~ ~ , 3 ©~- cu. ft.
(floor of the basin)
(elevation of the orifice)
(elevation of the discharge structure overflow)
(water surface area at the orifice elevation)
(on-site and off-site drainage to the basin)
(on-site and off-site drainage to the basin)
(combined volume of main basin and forebay)
(volume detained above the permanent pool)
(approximately 20% of total volume)
~_ (surface area to drainage area ratio from DWQ table)
S in. (2 to S day temporary pool draw-down required)
in.
® % (minimum 85% required)
Page 1 of 4

Footnotes:
When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90%TSS removal. The NCDENR BMP manual provides design tables for both 85%TSS removal and 90% TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Applicants Initials
~c~'` ~'1 ~' a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
~'oy~- b. The forebay volume is approximately equal to 20% of the basin volume.
~,./~_
~w~" --
N /~-
~~
P,~-
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;~-
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The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
e. [f required, a 30-foot vegetative filter is provided at the outlet (include non-erosive flow
calculations)
The basin length to width ratio is greater than 3: I .
g. The basin side slopes above the permanent pool are no steeper than 3:1.
h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
Vegetative cover above the permanent pool elevation is specified.
A trash rack or similar device is provided for both the overflow and orifice.
k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
m. A mechanism is specified which will drain the basin for maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 does does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of4

Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e.
stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
i
When the permanent pool depth reads ~ ~ 2~ feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads B~~Z`~ feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
Ull in the blanks)
0 Permanent Pool Elevation ~~• ~
Sediment Re oval El. ~~ 21~ 75 0
--------------- - Sediment Removal Elevation ~`~'Z's 75%
-------------------------------g ~ ---------- 25%
Bottom Ele ation
Bottom Elevation
FOREBAY
MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Page 3 of 4

7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signahire below that I am responsible for the performance of the seven
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.
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.
I, ~ Llls r a ~' r y a-{'I~ , a Notary Public for the State of _~7f1 G~~oui~1~4
County of~~ , do hereby certify that ~E[4=R•Q•tTLi27'
personally appeared before me this ~ day of Jt~uE 2Gb? ,and acla~owledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
. _.
~N=.1°~8~~c.,=
. ~';
~~~~i ~oUt~t'~ a~~~,,
SEAL
My commission expires_ 2' ~ ~~--I ~O
~-
Form SWU-102 Rev 3.99 Page 4 of 4
Print tiatne:_ ~E1=1= Z„4tf~i ~
Title: ~~Stt~-,Nf-

Permit No.
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
(to be provided by DWQ)
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name: (.~c.~~`S Q~ ~ ~{ ITi~Vif~:~ t /V~
Contact Person: ~ l,~i 0(~- ~t~iF.~-S Phone Number: ~') ,2~Z~ C~'~Z
For projects with multiple basins, specify which basin this worksheet applies to: ~
elevations
Basin Bottom Elevation ~~ ft.
Permanent Pool Elevation I Q _ ft.
Temporary Pool Elevation ~~ ~-S ft.
areas
Permanent Pool Surface Area I~s~ sq. ft.
Drainage Area ~ ~~~ ac.
Impervious Area '~' ~ ®~' ac.
(floor of the basin)
(elevation of the orifice)
(elevation of the discharge structure overflow)
(water surface area at the orifice elevation)
(on-site and off-site drainage to the basin)
(on-site and off-site drainage to the basin)
volumes
Permanent Pool Volume 2J`~ ~ ~~ ~ cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume I~~ ~ 61 ~P cu. ft. (volume detained above the permanent pool)
Forebay Volume ~_ cu. ft. (approximately 20% of total volume)
Other parameters
SA/DA1
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
S
~ in.
~ in.
(surface area to drainage area ratio from DWQ table)
(2 to S day temporary pool draw-down required)
(minimum 85% required)
Form SWU-102 Rev 3.99 Page 1 of 4

Footnotes:
1 When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2 In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90%TSS removal. The NCDENR BMP manual provides design tables for both 85%TSS removal and 90%TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Applicants Initials
~i~-- a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
?N`R-- b. The forebay volume is approximately equal to 20% of the basin volume.
~~~- c. The temporary pool controls runoff from the design storm event.
i ~- d. The temporary pool draws down in 2 to 5 days.
~ ~ ~' e. If required, a 30-foot vegetative filter is provided at the outlet (include non-erosive flow
calculations)
'I~r~- f. The basin length to width ratio is greater than 3:1.
~w~ g. The basin side slopes above the permanent pool are no steeper than 3:1.
~'~ h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
~ i. Vegetative cover above the permanent pool elevation is specified.
~` j. A trash rack or similar device is provided for both the overflow and orifice.
~',-~- k. A recorded drainage easement is provided for each basin including access to nearest right-

P`~ of-way.
1. If the basin is used for sediment and erosion control during construction, clean out of the

n
.../~---. basin is specified prior to use as a wet detention basin.
m. A mechanism is specified which will drain the basin for maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does oes not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e.
stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads ~~ 2 ~ feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads ~5~ 2~ feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
X11 in the blanks)
Permanent Pool Elevation ~ U
Sediment Re oval El. vS~Z S 75 0
--------------- - Sediment Removal Elevation ~''s'2S 75%
Bottom Ele ation ~ % -------------------------------~ --------- -- o -~
Bottom Elevation 25 /o
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Page 3 of 4

7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
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.
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.
I, ~ ~IIJ r a ~' r v 0.~'~~ , a Notary Public for the State of ~ G~yPdetnyQ
County of~L~ , do hereby certify that _ ~F4=R,¢tlL',~i'
personally appeared before me this ~c~ day of . y~UC ?Lb? , and acla~owledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
~r NO~'fAIQ~„ ~2
• ......
'~' i AV81.IG
to •., .• V'
RBI ~C~~~~ ~~.~( ~~ ~,~
SEAL
My commission expires ~ 2 ~
Form SWU-102 Rev 3.99 Pa?e ~l of 4
Print name: ~~~ Lr47fL~~
Title: ~~StA~-,Ni-