SW8090110_Current Permit_20090130

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North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H.Sullins Dee Freeman
Governor Director Secretary
January 30, 2009
Adam Sosne, Member Manager
Wilshire Landing Apartments, LLC
700 Military Cutoff Road, Suite 217
Wilmington, NC 28405
Subject: State Stormwater Management Permit No. SW8 090110
Wilshire Landing Apartments
High Density Commercial infiltration Basin Project
New Hanover County
Dear Mr. Sosne:
The Wilmington Regional Office received a complete State Stormwater Management Permit Application for
Wilshire Landing Apartments on January 23, 2009. Staff review of the plans and specifications has determined
that the project, as proposed, will comply with the Stormwater Regulations set forth in Session Law 2008-211
and Title 15A NCAC 2H.1000. We are forwarding Permit No. SW8 090110 dated January 30, 2009, for the
construction of the subject project.
This permit shall be effective from the date of issuance until January 30, 2019, and shall be subject to the
conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance
requirements in this permit. Failure to establish an adequate system for operation and maintenance of the
stormwater management system will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to
request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit.
This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina
General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-
7447. Unless such demands are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please contact Chris Baker,
or me at [phone].
Sincerely,
.146-1SCAT -b
Georgette Scott
Stormwater Supervisor
Division of Water Quality
GDS/csb: S:IWQSISTORMWATER\PERMIT1090110.jan09
cc: Gary Pape, P.E., Withers and Ravenel
New Hanover County Building Inspections
City of Wilmington Development Services
New Hanover County Engineering
Wilmington Regional Office
Central Files
Chris Baker
Wilmington Regional Office One
127 Cardinal Drive Extension,Wilmington,North Carolina 28405 NorthCarolina
Phone:[phone] FAX:[phone] Customer Service:1-877-623-6748
Internet www.ncwaterquality.org Naturally

State Stormwater Management Systems
Permit No. SW8 090110
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY COMMERCIAL DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Adam Sosne and Wilshire Landing Apartments, LLC
Wilshire Landing Apartments
4017 Wilshire Boulevard, Wilmington, New Hanover County
FOR THE
construction, operation and maintenance of an infiltration basin in compliance with the provisions
of Session Law 2008-211 and 15A NCAC 2H .1000 (hereafter referred to as the "stormwater
rules') and the approved stormwater management plans and specifications and other supporting
data as attached and on file with and approved by the Division of Water Quality and considered
a part of this permit.
This permit shall be effective from the date of issuance until January 30, 2019, and shall be
subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as
described in Section 1.9 on page 3 of this permit. The stormwater control has been
designed to handle the runoff from 74,634 square feet of impervious area.
3. This basin must be operated with a 30' vegetated filter.
4. The tract will be limited to the amount of built-upon area indicated in Section 1.9 on page
3 of this permit, and as shown on the approved plans.
5. All stormwater collection and treatment systems must be located in either dedicated
common areas or recorded easements. The final plats for the project will be recorded
showing all such required easements, in accordance with the approved plans.
6. The runoff from all built-upon area within the permitted drainage area of this project must
be directed into the permitted stormwater control system.
7. The built-upon areas associated with this project shall be located at least 30 feet
landward of all perennial and intermittent surface waters.
Page 2 of 7

State Stormwater Management Systems
Permit No. SW8 090110
8. 3,014 square feet of permeable pavement with a 6" gravel base has been approved as a
portion of the management of stormwater runoff as described in Section 1.9 on page 3 of
this permit. The reported built-upon area will be reduced by 1,808 square feet resulting
in 1,206 square feet of built-upon to be reported as impervious for this section design.
9. The following design criteria have been permitted for the infiltration basin and must be
provided and maintained at design condition:
a. Drainage Area, acres: 3.5
Onsite, ft2: 96,250
Offsite, ft2: None
b. Total Impervious Surfaces, ft2: 74,634
Onsite, ft2: 74,634
Offsite, ft2: None
c. Permeable Pavement, ft2: 3,014
d. Permeable Pavement Gravel Base, in: 6
e. Permeable Pavement reported
as BUA, ft2: 1,206
f. Design Storm, inches: 1.5
g. Basin Depth, feet: 1.6
h. Bottom Elevation, FMSL: 37.6
i. Bottom Surface Area, ft2: 4,962
j. Bypass Weir Elevation, FMSL: 39.2
k. Permitted Storage Volume, ft3: 9,077
I. Predevelopment 1 yr 24 hr peak flow, cfs: 1.3
m. Post-development 1 yr 24 hr peak flow, cfs: 0
n. Type of Soil: Seagate
o. Expected Infiltration Rate, in/hr: 9.3
p. Seasonal High Water Table, FMSL: 35.58
q. Time to Draw Down, hours: 2.4
r. Receiving Stream/River Basin: UT to Burnt Mill Creek/Cape Fear
s. Stream Index Number: 18-73-64-2
t. Classification of Water Body: "C;Sw"
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety, vegetated and
operational for its intended use prior to the construction of any built-upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of the
system will be repaired immediately.
3. The permittee shall at all times provide the operation and maintenance necessary to
assure the permitted stormwater system functions at optimum efficiency. The approved
Operation and Maintenance Plan must be followed in its entirety and maintenance must
occur at the scheduled intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
c. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of bypass structure, infiltration media, flow
spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass structure must be available at all times.
4. Records of maintenance activities must be kept for each permitted BMP. The reports will
indicate the date, activity, name of person performing the work and what actions were
taken.
Page 3 of 7

State Stormwater Management Systems
Permit No. SW8 090110
5. The permittee shall submit to the Division of Water Quality an annual summary report of
the maintenance and inspection records for each BMP. The report shall summarize the
inspection dates, results of the inspections, and the maintenance work performed at
each inspection.
6. The facilities shall be constructed as shown on the approved plans. This permit shall
become voidable unless the facilities are constructed in accordance with the conditions
of this permit, the approved plans and specifications, and other supporting data.
7. If the stormwater system was used as an Erosion Control device, it must be restored to
design condition prior to operation as a stormwater treatment device, and prior to
occupancy of the facility.
8. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and
prior to operation of this permitted facility, a certification must be received from an
appropriate designer for the system installed certifying that the permitted facility has been
installed in accordance with this permit, the approved plans and specifications, and other
supporting documentation. Any deviations from the approved plans and specifications
must be noted on the Certification. A modification may be required for those deviations.
9. Access to the stormwater facilities shall be maintained via appropriate easements at all
times.
10. The permittee shall submit to the Director and shall have received approval for revised
plans, specifications, and calculations prior to construction, for any modification to the
approved plans, including, but not limited to, those listed below:
a. Any revision to any item shown on the approved plans, including the stormwater
management measures, built-upon area, dotails, otc.
b. Project name change.
c. Transfer of ownership.
d. Redesign or addition to the approved amount of built-upon area or to the
drainage area.
e. Further development, subdivision, acquisition, lease or sale of any, all or part of
the project area. The project area is defined as all property owned by the
permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved
plan.
11. The permittee shall submit final site layout and grading plans for any permitted future
areas shown on the approved plans, prior to construction.
12. A copy of the approved plans and specifications shall be maintained on file by the
Permittee for a minimum of ten years from the date of the completion of construction.
13. The Director may notify the permittee when the permitted site does not meet one or more
of the minimum requirements of the permit. Within the time frame specified in the notice,
the permittee shall submit a written time schedule to the Director for modifying the site to
meet minimum requirements. The permittee shall provide copies of revised plans and
certification in writing to the Director that the changes have been made.
III. GENERAL CONDITIONS
1. This permit is not transferable to any person or entity except after notice to and approval
by the Director. In the event of a change of ownership, or a name change, the permittee
must submit a completed Name/Ownership Change form to the Division of Water
Quality, signed by both parties, and accompanied by the appropriate documentation as
listed on page 2 of the form. The approval of this request will be considered on its merits
and may or may not be approved.
Page 4 of 7

State Stormwater Management Systems
Permit No. SW8 090110
2. The permittee is responsible for compliance with all permit conditions until such time as
the Division approves the transfer request.
3. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to enforcement action by the Division of Water Quality, in accordance with
North Carolina General Statute 143-215.6A to 143-215.6C.
4. The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, rules, regulations, or ordinances, which may be imposed by other
government agencies (local, state, and federal) having jurisdiction.
5. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including
those as may be required by this Division, such as the construction of additional or
replacement stormwater management systems.
6. The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted stormwater
management facility.
7. The permit issued shall continue in force and effect until revoked or terminated. The
permit may be modified, revoked and reissued or terminated for cause. The filing of a
request for a permit modification, revocation and reissuance or termination does not stay
any permit condition.
8. Unless specified elsewhere, permanent seeding requirements for the stormwater
controls must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
9. Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit.
10. The issuance of this permit does not prohibit the Director from reopening and modifying
the permit, revoking and reissuing the permit, or terminating the permit as allowed by the
laws, rules and regulations contained in Session Law 2006-246, Title 15A NCAC
2H.1000, and NCGS 143-215.1 et. al.
11. The permittee shall notify the Division in writing of any name, ownership or mailing
address changes at least 30 days prior to making such changes.
12. The permittee shall submit a permit renewal application at least 180 days prior to the
expiration date of this permit. The renewal request must include the appropriate
documentation and the processing fee.
Permit issued this the 30th day of January, 2009.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for Cole e H. Sullins,`Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 5 of 7

State Stormwater Management Systems
Permit No. SW8 090110
Wilshire Landing Apartments
Stormwater Permit No. SW8 090110
New Hanover County
Designer's Certification
I, , as a duly registered in the
State of North Carolina, having been authorized to observe (periodically/weekly/full
time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
SEAL
Signature
Registration Number
Date
Page 6 of 7

State Stormwater Management Systems
Permit No. SW8 090110
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built-upon area.
3. All the built-upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The bypass structure weir elevation is per the approved plan.
6. The bypass structure is located per the approved plans.
7. A Trash Rack is provided on the bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. All required design depths are provided.
13. All required parts of the system are provided.
14. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
New Hanover County Building Inspections
Page 7 of 7

FILF COP1
(�I DWQ USE ONLY IA rl
Date Received Fee Paid Permit Number
t-2.14 c41 '.ocso — as i 3 5U-S% C-7 10
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT FERMTT APPLICATION FORM
This form may be photocopied for use as an original
I. GENERAL INFORMATION
1. Applicants name(specify the name of the corporation,individual,etc.who owns the project):
Wilshire Landing Apartments,LLC
2. Print Owner/Signing Official's name and title(person legally responsible for facility and compliance):
Adam Sosne-Member Manager
3. Mailing Address for person listed in item 2 above:
700 Military Cutoff Road,Suite 217
City:Wilmington State:NC Zip:28405
Phone: (910 ) 264-4824 Fax: (910 ) 332-5969
Email:
4. Project Name(subdivision,facility,or establishment name-should be consistent with project name on plans,
specifications,letters,operation and maintenance agreements,etc.):
Wilshire Landing Apartments
5. Location of Project(street address):
4017 Wilshire Boulevard
City:Wilmington County:New Hanover Zip:28403
6. Directions to project(from nearest major intersection):
Heading north on S.College Road turn left on Wilshire Blvd,go approx 2,000 feet site is on the right
7. Latitude:34°13'14"N Longitude:77°53'23"W of project
8. Contact person who can answer questions about the project:
Name:Garry S.Pape,P.E. Telephone Number: (910 ) 256-9277
Email:[e-mail]
IL PERMIT INFORMATION:
1. Specify whether project is(check one): /1 New ['Renewal ❑Modification
Form SWU-101 Version 09.25.08 Page 1 of 4

2. If,this application is being submitted as the result of a renewal or mod' ' ; i.(orhto a ting permit,list the
• . existing permit number and its i - •aten)
3. Specify the type of project(check one):
❑Low Density //High Density ❑Redevelop ❑General Permit ['Universal SMP ['Other
4. Additional Project Requirements(check applicable blanks;information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑LAMA Major ❑Sedimentation/Erosion Control 0404/401 Permit ❑NPDES Industrial Stormwater
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.
The stormwater for this project will be treated by an infiltration basin
2. Stormwater runoff from this project drains to the Cape Fear River basin.
3. Total Property Area:3.503 acres 4. Total Coastal Wetlands Area: acres
5. Total Property Area(3) - Total Coastal Wetlands Area(4) = Total Project Area**: acres
6. (Total Impervious Area/Total Project Area)X 100 = Project Built Upon Area(BUA):77.5
7. How many drainage areas does the project haven.
8. 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.
For high density projects,complete the table with one drainage area for each engineered stormwater device.
Basin Information Drainage Area 1 Drainage Area 2
Receiving Stream Name UT to Burnt Mill Creek
Stream Class&Index No. C;Sw
Total Drainage Area(sf) 96,250
On-site Drainage Area(sf) 96,250
Off-site Drainage Area(sf) 0
Existing Impervious*Area(sf) 0
Proposed Impervious*Area(sf) 74,634
% Impervious*Area(total) 77.5
Impervious*Surface Area Drainage Area 1 Drainage Area 2
On-site Buildings(sf) 23,040
On-site Streets (sf)
On-site Parking (sf) 44,426
On-site Sidewalks (sf) 5,962
Other on-site (sf) 1,206
Off-site (sf)
Total (sf): 74,634
*Impervious area is defined as the built upon area including,but not limited to,buildings,roads,parking areas,
sidewalks,gravel areas,etc.
**Total project area shall be calculated to exclude Coastal Wetlands from use when calculating the built upon area
percentage calculation. This is the area used to calculate overall percent project built upon area(BETA).
Form SWU-101 Version 09.25.08 Page 2 of 4

9. How was the off-site impervious area listed above derived?_
iH(�► 2 1 LUU!
•
Projects in Union County: Contact the DWQ Central Office staff to check to see if you project is located
within a Threatened&Endangered Species watershed that may be subject to more stringent stormwater
requirements.
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
One of the following property 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.
Forms can be downloaded from http://h2o.enr.state.nc.us/su/bmp forms.htm-deed restrictions.
Form DRPC-1 High Density Commercial Subdivisions
Form DRPC-2 High Density Developments with Outparcels
Form DRPC-3 High Density Residential Subdivisions
Form DRPC-4 Low Density Commercial Subdivisions
Form DRPC-5 Low Density Residential Subdivisions
Form DRPC-6 Low Density Residential Subdivisions with Curb Outlets
By your signature below,you certify that the recorded property restrictions and protective covenants for this
project shall include all the applicable items required in the above form,that the covenants will be binding
on all parties and persons claiming under them,that they will rim with the land,that the required covenants
cannot be changed or deleted without concurrence from the NC DWQ and that they will be recorded prior to
the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s)listed below must be submitted for each
BMP specified for this project. Contact the Stormwater Permitting Unit at(919)807-6300 for the status and
availability of these forms. Forms can be downloaded from http://h2o.enr.state.nc.us/su/bmp forms.htm.
Form SW401-Low Density Low Density Supplement
Form SW401-Curb Outlet System Curb Outlet System Supplement
Form SW401-Off-Site System Off-Site System Supplement
Form SW401-Wet Detention Basin Wet Detention Basin Supplement
Form SW401-Infiltration Basin Infiltration Basin Supplement
Form SW401-Infiltration Trench Underground Infiltration Trench Supplement
Form SW401-Bioretention Cell Bioretention Cell Supplement
Form SW401-Level Spreader Level Spreader/Filter Strip/Restored Riparian Buffer Supplement
Form SW401-Wetland Constructed Wetland Supplement
Form SW401-Grassed Swale Grassed Swale Supplement
Form SW401-Sand Filter Sand Filter Supplement
Form SW401-Permeable Pavement Permeable Pavement Supplement
Form SW401-Cistern Cistern Supplement
Form SWU-101 Version 09.25.08 Page 3 of 4

VI. SUBMITTAL REQUIREMENTS JAN 2 1 200�
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 appropriate DWQ Office. (Appropriate office may be found by locating project on the
interactive online map at http://h2o.enr.sk ic.us/su/msi maps.htm)
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initi.
• Original and one copy of the Stormwater Management Permit Application Form
• Original and one copy of the Deed Restrictions&Protective Covenants Form(if 7r
required as per Part IV above)
• Original of the applicable Supplement Form(s)and O&M agreement(s)for each BMP r S
• Permit application processing fee of$505(Express:$4,000 for HD,$2,000 for LD) .J
payable to NCDENR
• Calculations&detailed narrative description of stormwater treatment/management
• Copy of any applicable soils report ' !
• Two copies of plans and specifications(sealed,signed&dated),including: MI6
-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 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(such as additional information requests),please complete this section. (ex. designing engineer or firm)
Designated agent(individual or firm):Withers&Ravenel,Inc.-Garry S.Pape,P.E.
Mailing Address:1410 Commonwealth Drive,Suite 101
City:Wilmington State:NC Zip:28403
Phone: (910 ) 256-9277 Fax: (910 ) 256-2584
Email:[e-mail]
VIII. APPLICANT'S CERTIFICATION
I,(print or type name of person listed in General Information,item 2)Adam Sosne
certify that the information included on this permit 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 cove be recorded,and that the proposed project complies with the requirements of 15A
NCAC 2H.1000.
Signature: Date: 110 J
Form SWU-101 Version 09.25.08 Page 4 of 4

JAN 2 1 2009 Permit Number ,. (ngol l"
(to be provided y DWQ)
Drainage Area Number:
Infiltration Basin 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:
- The drainage area will be carefully managed to reduce the sediment load to the
infiltration basin.
- Immediately after the infiltration basin is established,the vegetation will be
watered twice weekly if needed until the plants become established (commonly
six weeks).
- No portion of the infiltration basin will be fertilized after the initial fertilization
that is required to establish the vegetation.
- The vegetation in and around the basin will be maintained at a height of
approximately six inches.
After the infiltration basin is established,it will be inspected once a quarter 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 problem:
The entire BMP Trash/debris is present. Remove the trash/debris.
The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to
infiltration basin 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.
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-Infiltration Basin O&M-Rev.3 Page 1 of 3

JAN 2 1 2U09
BMP element: Potential problem: How I will remediate the problem:
The forebay 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.
Erosion has occurred or Provide additional erosion
riprap is displaced. 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 pesticides are used,wipe
them on the plants rather than
spraying.
The main treatment area A visible layer of sediment Search for the source of the
has accumulated. sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP. Replace any media that
was removed in the process.
Revegetate disturbed areas
immediately.
Water is standing more than Replace the top few inches of filter
5 days after a storm event. media and see if this corrects the
standing water problem. If so,
revegetate immediately. If not,
consult an appropriate professional
for a more extensive repair.
Weeds and noxious plants are Remove the plants by hand or by
growing in the main wiping them with pesticide(do not
treatment area. spray).
The embankment Shrubs or trees have started Remove shrubs or trees
to grow on the embankment. immediately.
An annual inspection by an Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
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-
I outlet. 1733-1786.
Form SW401-Infiltration Basin O&M-Rev.3 Page 2 of 3

JAN 2 1 2009 Permit Number: S1.p v g 1 `n
(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:Wilshire Landing Apartments
BMP drainage area number:1
Print name:Wilshire Landing Apartments, LLC - Adam Sosne
Title:Member Manager
Address:700 Military Cutoff Road, Suite 217 Wilmington,NC 28405
Phone:[phone]:
I
Signature:
Date: t( to 4 f
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.
C.y•. G A_ W a1 r , a Notary Public for the State of
\ or�1-, Ca..o ;no , County of Ae t\1.Y13.s4,1' , do hereby certify that
,AClc,,r�1 so personally appeared before me this zol\
day of ".•-\\„c,,.y , ZoOc) , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official seal,
,s �.11AA. t a,
`O[r.* on*o®OaaeaP LZA.,4
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Form SW401-Infiltration Basin O&M-Rev.3 Page 3 of 3

JAN 1 2009 Permit Number: ��(� `
(to be provided by DWQ)
•
Drainage Area/Lot Number:_
Permeable Pavement 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 operation and maintenance procedures:
— Stable groundcover will be maintained in the drainage area to reduce the sediment
load to the permeable pavement.
— The area around the perimeter of the permeable pavement will be stabilized and
mowed,with clippings removed.
— Any weeds that grow in the permeable pavement will be sprayed with pesticide
immediately. Weeds will not be pulled, since this could damage the fill media.
— Once a year,the permeable pavement surface will be vacuum swept.
— At no time shall wet sweeping(moistening followed by sweeping)be allowed as a
means of maintenance.
— There shall be no repair or treatment of Permeable Pavement surfaces with other
types of pavement surfaces. All repairs to Permeable Pavement surfaces must be
accomplished utilizing permeable pavement which meets the original pavement
specifications.
— Concentrated runoff from roof drains,piping, swales or other point sources,
directly onto the permeable pavement surface shall not be allowed. These areas
must be diverted away from the permeable pavement.
Initial Inspection: Permeable Pavements shall be inspected monthly for the first three
months for the following:
BMP element: Potential problem: How to remediate the problem:
The perimeter of Areas of bare soil and/or In the event that rutting or failure of the groundcover
the permeable erosive gullies have occurs,the eroded area shall be repaired immediately
pavement formed. and permanent groundcover re-established.
Appropriate temporary Erosion Control measures(such
as silt fence)shall be installed in the affected area
during the establishment of permanent groundcover,
and any impacted area of permeable pavement is to be
cleaned via vacuum sweeping.
The surface of the Rutting/uneven This indicates inadequate compaction of the pavement
permeable settlement base/sub-base. If rutting or uneven settlement on the
pavement order of'A inch or greater occurs,permeable pavement
shall be removed and base/sub-base re-compacted,
smoothed,and permeable pavement shall then be re-
installed. Base and sub-base compaction shall be
monitored by a licensed geotechnical engineer to ensure
that infiltration capacity of base and sub-base are not
compromised by compaction and smoothing processes.
The pavement does not Vacuum sweep the pavement. If the pavement still
dewater between storms, does not dewater,consult a professional.
or water is running off.
Form SW401-Permeable Pavement O&M-Rev.3 Page 1 of 3

JAN 2 1 Z009 Permit Number: %C91(b1 I C�
(to be provided by DWQ)
Drainage Area/Lot Number:
The permeable pavement will be inspected once a quarter 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 to remediate the problem:
The perimeter of the Areas of bare soil and/or erosive Regrade the soil if necessary to remove
permeable pavement gullies have formed. 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 3 to 6
long. inches(remove clippings).
The surface of the Trash/debris is present. Remove the trash/debris.
permeable pavement
Weeds are growing on the Do not pull the weeds(may pull out
surface of the permeable media as well). Spray them with
pavement. pesticide.
Sediment is present on the Vacuum sweep the pavement.
surface.
The structure is deteriorating or Consult an appropriate professional.
damaged. Damaged areas of the pavement shall be
removed and repaired.
The pavement does not dewater Vacuum sweep the pavement. If the
between storms. pavement still does not dewater,consult
a professional. Permanently clogged
pavement shall be removed and
repaired.
Form SW401-Permeable Pavement O&M-Rev.3 Page 2 of 3

Permit Number: 56 oil 0
(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:Wilshire Landing Apartments
BMP drainage area or lot number:1
Print name:Wilshire Landing Apartments, LLC -Adam Sosne
Title:Member Manager
Address:700 Military Cutoff Road, Suite 217, Wilmington,NC 28405
Phone:910-2 ' 4
Signature: /7)
Date: ( Zo4 4
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.
, a Notary Public for the State of
14rk�. , County of \AL,,.) \-V4v-kp r , do hereby certify that
personally appeared before me this 20
day of 24,\‘.4..ry , , and acknowledge the due execution of the
forgoing permeable pavement maintenance requirements. Witness my hand and official
seal,
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My commission expires Zb, 200c)
Form SW401-Permeable Pavement O&M-Rev.3 Page 3 of 3

Permit No. 11A-3 D )011 O
(to be provided by DWQ)
��FWAT�c,9G
STORMWATER MANAGEMENT PERMIT APPLICATION FORM o oT
NCDENR 401 CERTIFICATION APPLICATION FORM
INFILTRATION BASIN SUPPLEMEN1
This form must be filled out,printed and submitted.
The Required Items Checklist(Part Ill)must be printed,filled out and submitted along with all of the required information.
I. PROJECT INFORMATION
Project Name Wilshire Landing Apartments
Contact Person Gany S.Pape,P E.
Phone Number 910-256-9277
Date 22-Jan-09
Drainage Area Number 1
IL DESIGN INFORMATION
Site Characteristics
Drainage area 96,250.00 ft2
Impervious area 74,634.00 ft2
Percent impervious 0.78 %
Design rainfall depth 1.50 in
Peak Flow Calculations
1-yr,24-hr rainfall depth 3.70 in
1-yr,24-hr intensity 2.94 _ in/hr
Pre-development 1-yr,24-hr discharge 1.30 ft3/sec
Post-development 1-yr,24-hr discharge 0.00 ft3/sec
Pre/Post 1-yr,24-hr peak flow control -1.30 ft3/sec
Storage Volume:Non-SA Waters
Minimum design volume required 8,998.00 ft3
Design volume provided 9,077.00 ft3 OK for non-SA waters
Storage Volume: SA Waters
1.5'runoff volume ft3
Pre-development 1-yr,24-hr runoff volume ft3
Post-development 1-yr,24-hr runoff volume ft3
Minimum required volume ft3
Volume provided ft3
Soils Report Summary
Soil type Seagate
Infiltration rate 9.30 in/hr
SHWT elevation 35.58 fmsl
Basin Design Parameters
Drawdown time 0.10 days OK
Basin side slopes 3.00 :1 OK
Basin bottom elevation 37.60 fmsl OK
Storage elevation 39.20 fmsl
Storage Surface Area 6,317.00 ft2
Top elevation 40.00 fmsl
Basin Bottom Dimensions
Basin length 72.00 ft
Basin width 69.00 ft
Bottom Surface Area 4,962.00 ft2
Form SW401-Infilration Basin-Rev.4 Pads I.&II.Design Summary,Page 1 of 2

JAN 2 1 ? HUS Permit No. S tI 0 O 7 o 11
(to be provided by DWQ)
Additional Information
Maximum runoff to each inlet to the basin? 1.95 ac-in OK
Length of vegetative filter for overflow 179.00 ft 0K
Distance to structure n/a ft OK
Distance from surface waters n/a ft OK
Distance from water supply well(s) n/a ft OK
Separation from impervious soil layer n/a ft OK
Naturally occuring soil above shwt 2.00 ft OK
Bottom covered with 4-in of clean sand? y (Y or N) OK
Proposed drainage easement provided? y (Y or N) OK
Capures all runoff at ultimate build-out? y (Y or N) OK
Bypass provided for larger storms? y (Y or N) OK
Pretreatment device provided n/a
Form SW401-Infiltration Basin-Rev.4 Parts I.&II.Design Summary,Page 2 of 2

JAM 2 12009 Permit No.Su3 S OCII O11 O
(to be provided by DWQ)
III. REQUIRED ITEMS CHECKLIST
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.
Pagel Plan
'tial Sheet No.
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),
Basin dimensions,
-Pretreatment system,
-High flow bypass system,
Maintenance access,
-Proposed drainage easement and public right of way(ROW),
-Overflow device,and
-Boundaries of drainage easement.
t50 2.Partial plan(1"=30'or larger)and details for the infiltration basin showing:
-Bypass structure,
-Maintenance access,
-Basin bottom dimensions,
Basin cross-section with benchmark for sediment cleanout,
Flow distribution detail for inflow,
-Vegetated filter,and
-Pretreatment device.
ti 3. Section view of the infiltration basin(1"=20'or larger)showing:
-Pretreatment and treatment areas,and
-Inlet and outlet structures.
G-5 I 4. A table of elevations,areas,incremental volumes&accumulated volumes to verify the volume provided.
tCP 6,1G> 5. A soils report that is based upon an actual field investigation,soil borings,and infiltration tests. The
results of the soils report must be verified in the field by DWQ,by completing&submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
t2, P > 6. A construction sequence that shows how the infitlration basin will be protected from sediment until the
c1) 4._1 entire drainage area is stabilized.
7. The supporting calculations.
tQ 8. A copy of the signed and notarized operation and maintenance(O&M)agreement.
N 1 9. A copy of the deed restrictions(if required).
Form SW401-Infiltration Basin-Rev.4 Page 1 of 1 Part III.Required Items Checklist,Page 1 of 1

Permit No,, Lt-3 Yrt 50/ L)
(to be provided by D )
of Waje.9
Airfai STORMWATER MANAGEMENT PERMIT APPLICATION FORM
NCDENR 401 CERTIFICATION APPLICATION FORM
PERMEABLE PAVEMENT 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 of the required information.
I. PROJECT INFORMATION
Project Name Wilshire Landing Apartments
Contact Person Garry S.Pape,P.E.
Phone Number 910-256-9277
Date 22-Jan-09
Drainage Area I Lot Number 1
Lot Owner's Signature
H. DESIGN INFORMATION
Soils Report Summary
Soil type Seagate
Infiltration rate 9.30 in/hr
SHWT elevation 35.58 fmsl
Credit Calculation-Enter an"x"in the appropriate cell below
Within 1/2 mile of&draining to SA waters? _- N Y/N Managed Grass Factor:
Permeable concrete without a gravel base _ _
Permeable concrete with at least 6"gravel base __ x_ -- 0.6
Flexible pavements with at least 4"gravel base —
Flexible pavements with at least 7'gravel base _ _
Bottom elevtion of the permeable pavement cross-section 39.413 fmsl OK
SA of permeable pavement being proposed 3,014.00 ft2
Resulting BUA counted as impervious 1,205.60 re
Additional Information
Slope of permeable pavement 0.50 _% aK
Construction sequence minimizes compaction to soils? y YIN OK
Traffic volume(vehicles per day) 20.00 v/day OK
Washed stone is specified for the gravel layer(if used)? y YIN OK
Concetrated flow from roofs&other surfaces directed away? y Y/N OK
Additional Information for Residential Lots Only
Total BUA allocated to this lot
Remaining lot BUA available ft2
To be completed by permittee i HOA:
Application Approved
Application Rejected��
Reason for rejecting application:
Signature of permittee 1 HOA:
_ Date
Date
Form SW401-Permeable Pavement-Rev.1 Parts I.&II.Design Summary,Page 1 of 1

JA 2009 Permit No �/S Cog 0 t l�
(to be provided by DWQ)
III. REQUIRED ITEMS CHECKLIST
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.
Page!Plan
tarl:e Sheet No.
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),
-Location of permeable pavement,
-Roof and other surface flow directed away from permeable pavement,
2. Section view of the permeable pavement(1" 20'or larger)showing:
-Layers,and
cs) -SHWT
3. A soils report that is based upon an actual field investigation,soil borings,and infiltration tests. The
results of the soils report must be verified in the field by DWQ,by completing&submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
4)Vim,c et-(, 4. A construction sequence that shows how the permeable pavement will be protected from sediment until
L the entire drainage area is stabilized.
t5. The supporting calculations.
ts 7 6. A copy of the signed and notarized operation and maintenance(O&M)agreement.
tt 7. A copy of the deed restrictions(if required).
Example#1
Project is a lot with a maximum allowed BUA of 5,000 sq.ft.that drains to class SC waters.
Project proposes a 1,000 sq.ft. permeable concrete driveway with a 6"gravel base.
Managed grass factor=0.6
1000 x 0.6=600 square feet is counted as managed grass.
1000-600=400 square feet is counted as built-upon area.
5000-400=4,600 square feet available for house and other BUA.
Example#2
Project is a high density commercial site with a 5,000 square foot parking lot.
Project is within 1/2 mile of and draining to SA waters.An infiltration system is proposed.
The parking lot will handle<100 cars per day and is a flexible pavement with a 4"gravel base.
Managed grass factor is one half of 0.4.=0.2
5000 x 0.2= 1000 square feet is counted as managed grass.
5000-1000=4,000 square is counted as impervious.
The total BUA used to calculate the minimum volume draining to the
infiltration system can be reduced by 1,000 square feet.
Form SW401-Permeable Pavement-Rev.1 Page 1 of 1 Part Ill.Required Items Checklist,Page 1 of 1