SW7080412_CURRENT PERMIT_20080728

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO. SW_VkZl
DOC TYPE I 17V CURRENT PERMIT
El APPROVED PLANS
0 HISTORICAL FILE
GOMPLIANCE EVALUATION INSPECTION
DOC DATE -ZAZ
YYYYMMDD

\N Alr��
"W
0
Michael F. Easley, Govern or
Cl)
William G Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
July 28, 2008
Ms. Linda L. Blackburn, Mayor
Town of Ahoskie
P.O. Box 767
Ahoskie, NC 27910
Subject: Stormwater Permit No. SW7080412
Ahoskie Police Station
High Density Project
Hertford County
Dear Mayor Blackburn.
The Washington Regional Office received a complete Stormwater Management Permit Application for the
Ahoskie Police Station on May 23, 2008. Staff review of the plans and specifications has determined that the
project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H. 1000. We are
forwarding Permit No. SW7080412 dated July 28, 2008, for the construction of the subj . ect project.
1 -36 V)6-1
This permit shall be effective from the date of issuance until July 28, 2018, 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, 6714 Mail Service Center, Raleigh, NC 27699-6714. 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 Roger Thorpe, or
me at [phone].
Sincerely,
Regional Supervisor
Surface Water Protection Section
cc The Wooten Company
HpFtford County Building Inspections
,'Aashington Regional Office
Central Files
North Carolina Division of Water Quality Internet �w nco,aterquality or One
943 Washington Square Mail Phone [phone] NorthiCarolina
Washington, NC 27889 Fax [phone] Aawally
An Equal Opportunity/Affirmadve Action Employer - 50% Recycled/10% Post Consumer Paper

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY 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
Town of Ahoskie
Ahoskie Police Station
West Main Street
Ahoskie, NC
FOR THE
construction, operation and maintenance of a stormwater wetlands system in compliance with the provisions of
15A NCAC 2H .1000 (hereafter referred to as the "stormwaterrules') 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 July 28, 2018, and shall be subject to the following
specified conditions and limitations.
1. 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 16 of this permit. The stormwater control has been designed to handle the runoff from 23,550
square feet of impervious area.
3. The tract will be limited to the amount of -bu ilt-u pon -area indicated in -Section 1.6 of this permit, and per
approved plans. The built -upon area for the future development is limited to 23,550 square feet.
4 All stormwater collection and treatment systems must be located in either dedicated common areas or
recorded easements. the fin -at plats for the project w- ill be recorded showing all such required easements,
in accordance with the—app—roved—plans—

The runoff from all built -upon area within the permitted drainage area of this project must be directed into
the permitted stormwater control system.
6. The following design criteria have been provided in the stormwater wetlands system and must be
maintained at design condition:
a. Drainage Area, ft' . 36,155
b. Total Impervious Surfaces, ft': 23,550
C. Design Storm, inches: 1.5
d. Permanent Pool Elevation, FMSL
98.2
e. Permanent Pool Surface Area, ft2:
2,760
f Permitted Storage Volume, ft':
2,872
9 Temporary Storage Elevation, FMSL:
99.37
h. Controlling Orifice:
0.75 "0 pipe
i. Permitted Forebay Volume, ft3:
337
i Receiving Stream/River Basin.
Ahoskie Creek/ Chowan
k. Classification of Water Body:
"C - NSW11
11. 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 outlet structure, orifice device, flow spreader, catch basins and
piping.
g: -Access to the -outlet structure -must be available at all times�-- -
4 Records of maintenance activities must be kept and made available upon request to authorized personnel
of DWQ. The records will ind-icate the date, activity, name of person performing the work and what
actions were taken

5 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.
6 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.
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. Access to the stormwater facilities shall be maintained via appropriate easements at all times.
9 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, details, etc.
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 subdivision, acquisition, lease or sale of 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
10. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the
approved plans, prior to construction
11 A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times.
12. 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
Ill. GENERAL CONDITIONS
This permit is not transferable 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 formal permit transfer request to
the Division of Water Quality,'accompanied by a completed name/ownership change form, documentation
from the parties involved, and other supporting materials as may be appropriate. The approval of this
request will be considered on its merits and may or may not be approved. The permittee is responsible for
compliance with all permit conditions until such time as the Division approves the transfer request
- ure'__ dF n irm ons c
2. Fail to a the con tiomsa-cl I" -ontairie-cl in-t-h—ispermit -may subjek-t-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
3:------The-issuance of this -permit does not- preclude -the- Perm ittee-from-com plying -with - any -a nd all statutes,
rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and
federal) having jurisdiction.

4. 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.
5. 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.
6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a
permit modification, revocation and relssuance or termination does not stay any permit condition.
7 Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the
guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual.
8. Approved plans and specifications for this project are incorporated by reference and are enforceable
parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address changes within 30 days.
10. This permit shall be effective from the date of issuance until July 28, 2018. Application for permit renewal
shall be submitted 180 days prior to the expiration date of this permit and must be accompanied by the
-processing fee.
Permit issued this the 28 th day of July 2008.
NO TH OLINA ENVIRONMENTAL MANAGEMENT COMMISSION
/I C�IX4 for
Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit No. SW7080412

Ahoskie Police Station
Stormwater Permit No. SW7080412
HertfordCounty
Designer's Certification
1, . 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

Certification Requirements:
I 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 outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/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, Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf, and a forebay.
15 The required system dimensions are provided per the approved plans.

( P, K-r )
Date Received
Fee Paid
Permit Number
MAY 2 3 2UU8
f-4 � iA " A 17� State of North Carolina
g Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
Thisfirm niay be phQtocopiedfor use as an original
1. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Town of Ahoskie
2. PrintOwner/Signing Official's name and title (person legally responsible for facility and compliance):
Linda L. Blackburn - Mayor
3. Mailing Address for person listed in item 2 above:
City:Ahoskie Stabe:NC Zip:27910
Phone: [phone] Fax: [phone]
Email:![e-mail]
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Town of Ahoskie Police Station Building
5. Location of Project (street address):
West Main Street (between Colony Ave. and Curtis St.)
City:Ahoskie County:Hertford Zip:27910
6. Directions to project (from nearest major intersection):
Two blocks west of the intersection of Academy Street (US Hh,�y. 13) and West Main Street
7. Latitude:36017'19"N Longitud
e:76'59'33" W - of project
8. Contact person who can answer questions about the �roject
Name:W. Brian fohnson Telephone Number: (919 828-0531
[e-mail]
11. PERMIT INFORMATION:
1. Specify whether project is (check one):
K=
Form SWU-101 Version 03.27.08 Page I of 4
F-IRenewal DModification

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
xisting permit numberN/ A and its issue date (if known)
3. pecify the type of project (check one):
E]Low Density E]High Density E]Redevelop MGeneral Permit E]Universal SMP 00ther
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):
[]CAMA Major ZSedimentation/ Erosion Control E]404/401 Permit EINPDES Stormwater
Ill. 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.
Stormwater will be routed throup_,h a constructed stormwater wetland. Water will be slowly released from the
outlet structure as demonstrated in the attached calculations.
2. Stormwater runoff from this project drains to the Chowan River basin.
3. Total Property Area: 1.03 acres 4. Total Wetlands Area:.O acres
5. 100' Wide Strip of Wetland Area: NIA acres (not applicable if no wetlands exist on site)
6. Total Project Area": 0.83 acres 7. Project Built Upon Area: 0.54 %
8. How many drainage areas does the project have? 1
9. 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, co plete the table with one drainage are fox each engineered stormwater device.
,'orma _on,
IN
�D me ea
ra Ar 2' j
­­ � 1. -
Receiving Stream Name
Ahoskie Creek
Stream Class & Index No.
QNSW No. 25-14-1
Total Drainage Area (sf)
36,155
On -site Drainage Area (sl)
36,155
Off -site Drainage Area (so
0
Existing Impervious* Area (so
0
Proposed Impervious*Area (so
23,550
% Impervious* Area (total)
65%
D J ...... ­­Ar_"'I"_
D" 'A" 2
ramage Tea".
On -site Buildings (so
8,308
On -site Streets (so
0
On -site Parking (Sf)
13,381
On -site Sidewalks (sf)
1,861
Other on -site (so
0
E-sitee (sf)
0
Total (sf):
23,550
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version 03.27.08 Page 2 of 4

**Total project area shall be calculated based on the currentpolicy regarding inclusion of wetlands in the built upon area
percentage calculation. This is the area used to calculate percent project built upon area (B UA).
10. How was the off -site impervious area listed above derived?Addition of building square footage, siclew�lk
area, and asphalt parking lotZ drive area.
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
One of the following 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. Forms can be
downloaded from http:/th2o.enr.state.nc.us/s�u/bmp forms.htm - deed restriction .
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 deed 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 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.
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 StOTmwater and General Permits - Unit at [phone] for the status
and availability of these forms. Forms can be downloaded from hU://li2o.enr.state.nc.us/su/bml2 forms.htm.
Form SW401-Low Density
Form SW401-Curb Outlet System
Form SW401-Off-Site System
Form SW401-Wet Detention Basin
Form SW401-Infiltration Basin
Form SW401-Infiltration Trench
Form SW401-Bioretention Cell
Form SW401-Level Spreader
Form SW401-Wetland
Form SW401-Grassed Swale
Form SW401 -Sand Filter
Form SW401 -Permeable Pavement
Low Density Supplement
Curb Outlet System Supplement
Off -Site System Supplement
Wet Detention Basin Supplement
Infiltration Basin Supplement
Underground Infiltration Trench Supplement
Bioretention Cell Supplement
Level Spreader/Filter Strip/Restored Riparian Buffer Supplement
Constructed Welland Supplement
Grassed Swale Supplement
Sand Filter Supplement
Permeable Pavement Supplement
Form SWU-101 Version 03.27.08 Page 3 of 4

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 appropriate DWQ Office. (Appropriate office may be found by locating project on the
interactive online map at littl2://h2o.enr.state.iie.us/su/msi maps.htni)
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
ImPtia
Original and one copy of the Stormwater Management Permit Application Form N wl�
Original and one copy of the Deed Restrictions & Protective Covenants Form (if
required as per Part IV above)
Original of the applicable Supplement Form(s) ancl O&M agreement(s) for each BMP
Permit application processing fee of $505 (Express: $4,000 for HD, $2,000 for LD)
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:
- Development/ Project name iv
- 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)
VIL 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. (ex. designing engineer or firm)
Designated agent (individual or firm):The Wooten Company
Mailing Address:120 N. Boylan Avenue
. State:NC Zip:27603
Phone: (919 ) 828-0531 Fax: (919 ) 834-3589
Email:[e-mail]
Vill. APPLICANT'S CERTIFICATION
1, (print or type mone of person listed in General Information, item 2) Linda L. Blackburn
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 covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H.1000 I — . 11
Date: e -,go -;i ea
Form SWU-101 Version 03.27.08 Page 4 of 4

Permit Number
(to be Provided by DWQ)
c;� \N A 7��,,�
14CDENR
0
STORMWATER MANAGEMENT PERMIT APPLICATION
FORM MAY 2 3 2008
401 CERTIFICATION APPLICATION FORM
WETLAND SUPPLEMENT
D- 'Al Q JAIA R 0
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.
I� 'PROJECT, INFORMATION
Project name
Town of Ahoskie Police Station Building
Contact name
W. Brian Johnson, P.E.
Phone number
28-0531
Date
May 8, 2008
Drainage area number
Ill. !DESIGN]NF0RMATI0N,',c-t:.',
Site Characteristics
Drainage area
36,155.00 ft2
Impervious area
23,550.00 ft2
Percent impervious
65.1%%
Design rainfall depth
1.50 inch
Peak Flow Calculations
1-yr, 24-hr runoff depth
1.50 in
1 -yr, 24-hr intensity
0.12 inthr
Pre -development 1 -yr, 24-hr runoff
0.02 ft3/sec
Post -development 1-yr, 24-hr runoff
0.07 ft3/sec
Pre/Post 1-yr, 24-hr peak control
0.05 ft3 /sec
Storage Volume: Non -SR Waters
Design volume (temporary pool volume)
2,872.00 ft3 OK
Depth of temporary poollponding depth (Dpw,,) 16.00 in Insufficient depth of temp. pool.
Drawdown time 3.80'days OK
Diameter of orifice 0.75 in Drawdown orifice diameter may be insufficient. Please
provide adequate supporting calculations.
Coefficient of discharge (CD) used in orifice diameter 3.00 (unitless)
calculation
Driving head (H.) used in the orifice diameter calculation 0.45 ft OK
Storage Volume: SIR Waters Parameters
1 -yr, 24-hr depth in
Pre -development 1-yr, 24-hr runoff ft3
Post -development 1-yr, 24-hr runoff W
Minimum volume required W
Volume provided �ft3
Form SW401-Wettand-Rev 2 Parts I and 11 Project Design Summary, Page 1 of 3

Permit Number
(to be Provided by DWQ)
Surface Areas of Weiland Zones
Surface Area of Entire Welland
2,760.00 ft'
OK
Shallow Land
�,08�300 ft2
OK
The shallow land percentage is:
0.39%
Shallow Water
1,064 00 ft2
OK
The shallow water percentage is:
0.39%
Deep Pool
Forebay portion of deep pool (pretreatment)
337.00 ft2
OK
The forebay surface area percentage is:
0.12%
Non-forebay portion of deep pool
276.00 ft2
OK
The non-forebay deep pool surface area percentage is:
0.10%
Total of wetland zone areas
2,760.00 ft2
OK
Add or subtract the following area from the zones
0.00 ft2
Topographic Zone Elevations
Temporary Pool
Shallow Land (top)
99.37 fms]
Permanent Pool
Shallow Water (top)
98.20 fmsl
Deep Pool (top)
97.70 fmsl
Most shallow point of deep pool's bottom
97.70 fmsl
Deepest point of deep pool's bottom
96.00 fmsl
Design must meet one of the following two options:
This design meets Option #11,
(Y or N)
Deep pool is 6-inches below SLWT, If yes:
SLWT (Seasonally Low Water Table)
fmsl
This design meets Option #2,
Has a clay liner
Y
If yes:
Depth of topsoil above clay liner
4.00 in
Topographic Zone Depths
Temporary Pool
Shallow Land
16.00 in Insufficient shallow land depth.
Permanent Pool
Shallow Water
6.00 in OK
Deep Pool (shallowest)
0.00 in
Deep Pool (deepest)
20.40 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)
84
Shrubs/small trees (I gallon or larger)
56
Trees (1.5" dbh)
14
Number of Plants in planting plan provided (several species of
each plant type are recommended):
Herbacious (4-inch diameter)
84 OK
Shrubstsmall trees (1 gallon or larger)
56 OK
Trees (2.5" dbh)
14 OK
Fomn SW401 -Wetland-Rev 2 Parts I and 11 Project Design Summary, Page 2 of 3

Permit Number
(to be provided by DWQ)
Additional Information
Can the design volume be contained?
Y
z(Y or N)
OK
Does volume in excess of the design volume flow evenly
N
(Y or N)
Excess volume must pass through filter.
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 BIVIP 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
N'
(Y or N)
Insufficient ROW location.
recorded access easement to a public Right of Way (ROW)?
The length to width ratio is:
4.20 :1
OK
Approximate wetland length
105.00 ft
Approximate wetiand width
25.00 ft
Approximate surface area using length and width provided
2,625.00
ft'
This approx. surface area is within this number of square
feet of the entire welland surface area reported above:
Will the welland be stabilized within 14 days of construction?
Y
(Y or N)
OK
Fom SW401-Wetiand-Rev.2 Parts I and H. Project Design Summary, Page 3 of 3

Pe"it No.
(to be provided by DwQ—)
Jill. 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.
Initials
Page/ Plan
SheetNo.
CO2
L
1. Plans (V - 50' or larger) of the entire site showing: MAY 2 3 2006
- 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.
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.
3. Section view of the wetland (1" = 20'or larger) showing:
- Side slopes, 3:1 or lower
- Weiland 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.
C&L
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).
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7. A copy of the signed and notarized operation and maintenance (O&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-Wetiand-Rev.2
Part III, page I of I

Permit Number: 5'4,1 ?C? 041-:1-
(to be provided by DWQ)
Drainage Area Number:
Stormwater Wetland Operation and Maintenance Agreernentj�'-
LZGTCE'� � " 1-�
MAY 2 3 2008
1 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
B 'AA I
corrected, repaired or replaced immediately. These deficiencies can affect the integritp d V Q-11NA217".0
of structures, safety of the public, and the removal efficiency of the BW.
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
fertflization 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 rernediate 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
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-Wetiand O&M-Rev.3 Page I 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 ff
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-Wetiand 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
(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:Town of Ahoskie Police Station Building
BMP drainage area number:
Print name:Linda L. Blackburn
Address:P. 0. Box 767
Date: �5_ 010-09
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, 42,44M e. /V�� , a Notary Public for the State of
V County of —
714AIL 6�� a &Lt':� —, do hereby certify that
. &%:Q� &9. Seetk_� _ personally appeared before me this AQ4
day of and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
SEAL
.......... R .. 4,
My Coinm Exp �t
C . 0 . U . iA
My commission expires o? - A A -,Q 0 If
Form SW401 -Wet Detention Basin O&M-Rev.3 Page 4 of 4