SW7071016_CURRENT PERMIT_20071205

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW_ 7Qf�
DOC TYPE
CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
01> 5—
a�j$
YYYYMMDD

I.tlxRp
Michael F. Easley, Governor
i
i
William G. Ross Jr., Secretary
rNorth
Carolina Department of Environment and Natural Resources
—i
.�
Coleen H. Sullins, Director
Division of Water Quality
December 5, 2007
Attn.: Rick Scheper
3940 US HWY 70E
New Bern, NC 28560
Subject: Stormwater Review SW7071016
Pinecrest Estates
High Density Stormwater Project
Craven County
Dear Mr. Scheper:
The Washington Regional Office received a completed Stormwater Application for the subject project on
October 22, 2007. 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.
SW7071016 dated December 5, 2007 to Rick Scheper for a wet detention pond to serve the Pinecrest Subdivision,
located off of Powell Street/ SR 1292, New Bern, NC.
This permit shall be effective from the date of issuance until December 5, 2017 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. The issuance of this permit does not resolve any
previous violations of the stormwater rules for construction without a permit.
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 Ernest Odei-
Larbi or me at [phone].
Incerely,
/ AI odge, R a Xisory
Surface Water Protection Section
Washington Regional Office
cc: Bobby Billingsley, E.I, Thomas Engineering, P.A (P.O.BOX 1309,New Bem, NC 28563)
New Bern Planning/Inspection
Washington Regional Office
North Carolina Division of Water Quality Internet: www.newaternuality.ore ne
943 Washington Square Mall Phone [phone]I NoofthCarolina
Washington, NC 27889 Fax [phone] Naturally
An Equal Opportunity/Affirmative Acton Employer— 50% Recycled110% Post Consumer Paper

State Storrnwater Management Systems
Permit No. SW7071016
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
Rick Scheper
Craven County
FOR THE
construction, operation and maintenance of stormwater management systems in compliance with the provisions of
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 for a wet detention pond to serve the Pinecrest Subdivision located off of
Powell Street / SR 1292, New Bern, NC.
This permit shall be effective from the date of issuance until December 5, 2017 and shall be subject to the following
specified conditions and limitations:
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 on page
3 of this permit, the Project Data Sheet.
3. A maximum of 344,786 square feet of built upon area is allowed on this 28.19 acre site.
4. 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 approved plans.
5. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of
the project.

n
State Stormwater Management Systems
Permit No. SW7071016
DIVISION OF WATER QUALITY
WET DETENTION POND - PROJECT DATA
Project Name:
Pinecrest Estates
Permit Number:
SW7071016
Location:
Craven County
Applicant:
Rick Schaper
Mailing Address:
3940 US Hwy 70 E
New Bern, NC 28560
Application Date:
10/22/2007
Receiving Stream:
Neuse river
Classification of Water Body:
SC; Sw; NSW
Total Site Area:
28.19 ac
Drainage area:
14.17 ac
Total Impervious allowed on site:
344,786 sf
Wet Pond Depth:
5.50 ft
Required Storage Volume:
59,525 cf
Provided Storage Volume:
73,077 cf
Required Surface Area:
22,174 sf
Provided Surface Area:
22,400 sf
Controlling Orifice:
2" diameter @ elevation 18 ft.
Temporary Storage Elevation
18 ft.
3

State Stormwater Management Systems'
Permit No. SW7071016
6. No homeowner/lot owner/developer shall be allowed to fill in, alter, or pipe any vegetative practices (such as
swales) shown on the approved plans as part of the stormwater management system without submitting a
revision to the permit and receiving approval from the Division.
The following items will require a modification to the permit:
a. Any revision to the approved plans, regardless of size
b. Project name change
C. Transfer of ownership
d. Redesign or addition to the approved amount of built -upon area
e. Further subdivision of the project area.
In addition, the Director may determine that other revisions to the project should require a modification to the
permit.
B. 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.
II. SCHEDULE OF COMPLIANCE
The permittee will comply with the following schedule for construction and maintenance of the stormwater
management system.
a. 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 surfaces except roads.
b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be
repaired immediately.
2. The facilities must be properly maintained and operated at all times. The approved Operation and
Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals.
3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted
stormwater system functions at optimum efficiency including, but not limited to:
a. Semiannual scheduled inspections (every 6 months)
b. Sediment removal
C. Mowing and revegetation of side slopes
d. Immediate repair of eroded areas
e. Maintenance of side slopes in accordance with approved plans and specifications
f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping.
4. Records of maintenance activities must be kept and made available upon request to authorized personnel of
DWQ. The records will indicate the date, activity, name of person performing the work and what actions were
taken.
5. 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 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. Mail the Certification to the Washington Regional Office, 943 Washington Square Mall,
Washington, North Carolina, 27889, attention Division of Water Quality.

State Stormwater Management Systems
Permit No. SW7071016
7. A copy of the approved plans and specifications shall be maintained on file by the Permittee for the life of the
permit.
III. GENERAL CONDITIONS
1. This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is
a name change of the Permittee, a formal permit request must be submitted to the Division of Water Quality
accompanied by an application fee, 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.
2. 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-
215.6(a) to 143-215.6(c).
3. 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),
which have 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 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.
6. The Permittee, at least six (6) months prior to the expiration of this permit, shall submit in writing a request for
an extension along with appropriate application fee.
Permit issued this the 5th day of December 2007.
ENVIRONMENTAL MANAGEMENT COMMISSION
L_
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7071016

State Stormwater Management Systems
Permit No. SW7071016
Pinecrest Estates
High Density Stormwater Project
Designer's Certification
as a duly .
Registered Professional Engineer in the State of North Carolina, having been authorized to observe
(periodically/weekly/full time)
the construction of the 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.
Signature
Registration Number
Date
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 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.
The required system dimensions are provided per the approved plans.
L

State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may he photocopied for use as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
A.t.r SuiE�'Ea
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
%)'iCK' Se/lEPFQ — n. ./t-e
3. Mailing Address for person listed in item 2 above:
3SYa Us 11t,1'1 7a E9.Jr
City: Al &- C> Eit ✓ State: A) C- Zip: Z 8 z 6
Telephone Number: f 2.i Z ) 936 . 7 S 3 9
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
/�"Ileneesr Cs'f-4rEJ
5. Location of Project (street address):
OFr' oL Pot EGC ST f2 /Z 9 z
City: County: Ut9✓E�1
6. Directions to project (from nearest major intersection):
`Wa,« T/If i,✓xrx ee7r/off of •✓c 5'5' 4 r,a -1C Si,? . OA r-H aF ^Je-- -i
AekAlP%
.¢✓ENue-S94 it Ar T.r/F ter. o .
7. Latitude: 3S , tt 010 - �) Longitude: 7 7' o S goo - i.✓ of project
8. Contact person who can answer questions about the project:
Name: 404900 y/ AT, CG 1--Circe? Telephone Number: ( Zf2 ) 63 7. 7-72. 7
II. PERMIT INFORMATION:
1. Specify whether project is (check one): New Renewal Modification
FormSWU-101 Version3.99 Page 1of4

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number _ 11A and its issue date (if known)
3. Specify the type of project (check one):
❑Low Density 3High Density ❑Redevelop ❑General Permit ❑Universal SMP ❑Other
4. Additional Project Requirements (check applicable blanks):
❑CAMA Major [Sedimentation/Erosion Control 404/401 Permit ❑NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
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.
-5740' MAvI.T--- Wi4e Calk%c✓ V-'a CU-�
an el "ed {. Ai a 6elf:-,eoreO �v.e- lc%e�r'g�:, 64f,%r
2. Stormwater runoff from this project drains to the NO aJ 1 River basin.
3. Total Site Area: -Z-8. / / acres 4. Total Wetlands Area: -7 acres
5. 100' Wide Strip of Wetland Area: acres (not applicable if no wetlands exist on site)
6. Total Project Area**: Z 8, / 5 acres 7. Project Built Upon Area: 2 S. O 9
8. How many drainage areas does the project have?�
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.
Basin Information
Drainage Area I
Drainage Area 2
Receiving Stream Name
.✓EuJ E Q/`Le-11
Stream Class & Index No.
SC - -C— -,✓l c.,
Drainage Area (so
-W, 6 7 6 y Q S
Existing Impervious* Area (so
D 3-//
Proposed Impervious*Area (so
1 7 0 6 S r
Impervious* Area (total)
I ,5.5. g %
Impervious* Surface Area
Drainage Area 1
Drainage Area 2
On -site Buildings (so
/ -/ 9 j p o S- /=
On -site Streets (so
e%419 8 ( Sim
On -site Parking (so
6 o o p 0 5-/=
On -site Sidewalks (so
7 o - O a S- L
Other on -site (so
O S%
Off -site (so
p S
Total (so:
3 7
* 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 based on the current policy regarding inclusion of wetlands in the built upon area
percentage calculation.
Form SWU-101 Version 8.07 Page 2 of

7. How was the off -site impervious area listed above
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table
listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment.
1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number
as issued by the Division of Water Quality. These covenants may not be
changed or deleted
//without the consent of the State.
2. No more than T D'—� square feet of any lot shall be covered by structures or impervious materials.
impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood
decking or the water surface of swimming pools
3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossings.
4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to
construction.
5. All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity
and performance of the system as permitted.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and persons
claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the State, and that they will be recorded prior to the sale of any lot.
N�YIi Ji0 CIS-1LizW 1Lil-2�i69
The applicable state stormwater management permit supplement form(s) listed below must be submitted for each
BMP specified for this project. Contact the Stormwater and General Permits Unit at [phone] for the status
and availability of these forms.
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of

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 Regional Office.
Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form 2Z'+6
• One copy of the applicable Supplement Form(s) for each BMP /LG <7
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of stormwater treatment/management
• Two copies of plans and specifications, including: G�
- Development/Project name
- Engineer and firm
-Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
VII. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individual or firm): T/{o,N, q-J E.✓G�-�EFiC..✓ G� PA
Mailing Address: Oa Qo,c /30.
Phone: ( 2 rZ ) G 37. 2 7 Z
VIII. APPLICANT'S CERTIFICATION
State: n/c Zip: Z$ —a 3
Fax: ( 27-L ) 4-14, Z iiy Z
I, (print or type name of person listed in General Information, item 2) /, , c k— SCf/E�F�
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 .1000/1 / n
Fonn SWU-101 Version 3.99 Page 4 of 4
Date: '7 ' Z 07

So -2 07 fa1,
Permit No.
(to be provided by DWQ)
TO �2 F WAT!Z9
NCDENR C
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN 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 Pinecrest Estates
Contact person Bobby Billingsley, El, Thomas Engieenng, PA, PO Box 1309, New Bern, NC 28563
Phone number 252,637.2727
Date
Drainage area number
II. DESIGN INFORMATION
Site Characteristics
11,20.07
Drainage area
617,648
fl'
Impervious area
344,786
ft
%impervious
55.82241018
%
Design rainfall depth
2.0
in
Storage Volume: Non -SR Waters
Minimum volume required
59,525
ft3
Volume provided
68,439
ft'
Storage Volume: SR Waters
1-yr, 24-hr runoff depth
Na
in
Pre -development I-yr, 24-hr runoff
n/a
ft3
Post -development 1-yr, 24-hr runoff
nla
ft3
Minimum volume required
#VALUE!
ft3
Volume provided
nla
ft3
Peak Flow Calculations
Is pre/post control of the 1-yr 24-hr peak flow required?
Y
(Y or N)
1-yr, 24-hr rainfall depth
3.7
in
Rational C, pre -development
0.2
(unitless)
Rational C, post -development
0.5
(unitless)
Rainfall intensity: 1-yr, 24-hr storm
2.3
inlhr
Pre -development 1-yr, 24-hr peak flow
6.6
ft'/sec
Post -development 1-yr, 24-hr peak flow
16.6
ft'/sec
Pre/Post 1-yr, 24-hr peak flow control
10.0
ft'/sec
Basin Elevations
Basin bottom elevation
4.00
ft
Sediment cleanout elevation
7.00
ft
Permanent pool elevation
15.50
ff
Temporary pool elevation
18.00
ff
Volume and Surface Area Calculations
SAIDA ratio
3.59
(unitless)
Permanent pool, surface area required
22,174
f12
Permanent pool, surface area provided
22,400
ftz OK
Permanent pool volume
127,756
ft3
Average depth for SAIDA tables
5.703392857
ft OK
Forebay volume
25,135
ft3
Forebay % of permanent pool volume
20
% OK
Temporary pool, surface area provided
31,469
ftz
Form SW401-Wet Detention Basin-Rev.2 Pans I. 811. Design Summary, Page 1 of 2

Permit No.
(to be provided by DWQ)
II. DESIGN INFORMATION
Drawdown Calculations
Treatment volume drawdown 6me
4
days
OK
Treatment volume discharge rate
0.08
ft3/s
Pre -development 1-yr, 24-hr discharge
6.60
ft3/s
OK
Post -development 1-yT, 24-hr discharge
3.50
ft3/s
OK
Additional Information
Diameter of orifice
2.00
in
Design TSS removal
90
%
Basin side slopes
3
:1
OK
Vegetated shelf slope
10
:1
OK
Vegetated shelf width
10
ft
OK
Length of flowpalh to width ratio
3
:1
OK
Length to width ratio
3
:1
OK
Trash rack for overflow & orifice?
Y
(Y or N)
OK
Freeboard provided
2.5
ft
OK
Vegetated filter provided?
Y
(Y or N)
OK
Recorded drainage easement provided?
Y
(Y or N)
OK
Capures all runoff at ultimate build -out?
Y
(Y or N)
OK
Drain mechanism for maintenance or emergencies
Mech. Pumps
#VALUE!
Form SW401-Wet Detention Basin-Rev.2 Pans I. & II. Design Summary, Page 2 of 2

Permit No. S VJ % O7 j 01b
(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
Initials
Sheet No.
2 L'a
#CL_
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,
- Recorded drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
C�
17
2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing:
- Outlet structure with trash rack or similar,
- Maintenance access,
- Permanent pool dimensions,
- Forebay and main pond with hardened emergency spillway,
- Basin cross-section,
- Vegetation specification for planting shelf, and
- Filter strip.
11144
17
3. Section view of the dry detention basin (1" = 20' or larger) shoving:
- Side slopes, 3:1 or lower,
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
on the plans prior to use as a wet detention basin.
-7
5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay,
to verify volume provided.
2 c Q
7
6. An assurance that the installed system WII meet design specifications upon initial operation once the
project is complete and the entire drainage area is stabilized.
R
7
7. A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized.
�Ga
S` e—
8. The supporting calculations.
2�3
9. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
tyA
10. A copy of the deed restriction.
Form SW401-Wet Detention Basin-Rev.1 Part III. Required Items Checklist, Page 1 of 1

Wet Detention Basin Inspection 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.
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):
❑ does ® does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
— Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
— If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
— Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected 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 inspection and maintenance should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash debris is present.
Remove the trash debris.
The perimeter of the wet
Areas of bare soil and/or
Regrade the soil if necessary to
detention 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.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.

BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
The pipe is clogged.
Unclog the pipe. Dispose of the
swale
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale if necessary to
swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design depth for
possible. Remove the sediment and
sediment storage.
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 pesticide is used, wipe it on
the plants rather than spraying.
The vegetated shelf
Best professional practices
Prune according to best professional
show that pruning is needed
practices
to maintain optimal plant
health.
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.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design sediment
possible. Remove the sediment and
storage depth.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
Consult a professional to remove
50% of the area.
and control the algal growth.
Cattails, phragmites or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray).
the basin surface.

BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
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.
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 local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
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 4 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 4 feet in the forebay, the sediment shall
be removed.
Sediment Removal
Bottom
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 15.5
11.1 I Pe anen Pool
---------- -- Volume Sediment Removal Elevation 11.5 Volume
10.0 -ft Min.
----------------------------- ------------ ------
Sediment Bottom Elevation 10.0 1-ft n
Storage Sedimer
Storage
FOREBAY MAIN POND

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.
Print name:Rick Schener
Address:3940 US Highway 70 East, New Bern, NC 28563
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
NorR, C"d"/\
q
, County of
'Co --> , do hereby certify that
� . �k
5e k-ep..c
i
personally appeared before me this 2 4 tt\
day of N o, p x, b e� , z o0 7 and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
Y ..\`�. ,: V A R Pq
l
O �9
Notary Public
Jones County
3 My Commission expili
02/07/2012 P
s 20
C
SEAL
My commission expires

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