HomeMy WebLinkAboutSW7080816_CURRENT PERMIT_20080918STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD
W0.
Michael F. Easley, Govemorr
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
1
September 18, 2008
Mr. Ed Mitchell, President
River Dunes Corporation
416-A Pollock Street
New Bern, NC 28560
Coleen H. Sullins, Director
Division of Water Quality
Subject: Stormwater Permit No. SW7080816
River Dunes Marina & Residential Development
Harbor Village VI & Village Center, Phase II
High Density Project
Pamlico County
Dear Mr. Mitchell:
The Washington Regional Office received a complete Stormwater Management Permit Application
for River Dunes Marina & Residential Development - Harbor Village VI & Village Center, Phase II
on September 15, 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. SW7080816 dated September 18, 2008, for the
construction of the subject project located on SR 1317, Orchard Creek Rd, near Oriental, North
Carolina.
tilr'3 C, 6-/
This permit shall be effective from the date of issuance until September 18, 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 and in the submitted application. 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
either Scott Vinson, or me at (252) 946-6481.
kincerel
Al Hodge 4�
Regional Supervisor
Surface Water Protection Section
AH/sav: C:\STORMWATER\PERMIT\SW7080816
cc: Curtis Blazier, PE - McKim & Creed
Doug Huggett, CAMA
,Pamlico County Building Inspections
,,'Washington Regional Office
Central Files Ne
NonhCarolina
,Naturally
North Carolina Division of Water Quality Washington Regional Office Phone (252) 946-6481 FAX (252) 946-9215 Customer Service
Internet: www.ncwaterauality-ore 943 Washington Square Mall, Washington, NC 27889 1-877-623-6748
An Equal Opportunity/Affirmative Action Employer — 50% Recycled110% Post Consumer Paper
State Stormwater Management Systems
Permit No. SV 7080816
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
River Dunes Corporation
River Dunes Marina & Residential Development
Harbor Village VI & Village Center, Phase 11
Pamlico County
FOR THE
construction, operation and maintenance of five infiltration basins 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.
This permit shall be effective from the date of issuance until September 18, 2018, and shall be
subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data. The drainage areas will be
limited to the amount of built -upon area indicated on page 3 of this permit, and per
approved plans.
This stormwater system has been approved for the management of stormwater runoff as
described in Section 1.5 and 1.6 on page 3 of this permit. The stormwater controls have
been designed to handle the runoff from 230,142 square feet of impervious area.
3. 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 and permit.
4. Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit. The runoff from all built -upon area within the permitted
drainage areas of this project must be directed into the permitted stormwater control
systems.
Page 2 of 9
State Stormwater Management Systems
Permit No. SV 7080816
5. The
following design criteria have been provided in
the infiltration basins and must be
maintained at design condition:
VI-1 VI-2 VI-3
a.
Drainage Area, ft2:
1 00,454 66,216 91,984
b.
Total Impervious Surfaces, ft2:
66,257 33,932 54,548
C.
Design Storm, inches:
3.0 3.0 3.0
d.
Basin Depth, ft.:
2.30 2.00 2.00
e.
Bottom elevations, FMSL:
3.00 3.30 3.30
f.
Bottom Surface Area, ft2:
6,436 3,374 5,755
g.
Bypass Overflow Elevations, FMSL:
5.30 5.30 5.30
h.
Permitted Storage Volume, ft3:
16,799 8,526 13,983
i.
Type of Soil:
Loamy Sands (fill)
j.
Expected Infiltration Rate, in/hr:
1.30 1.30 1.30
k.
Seasonal High Water Table, FMSL:
0.70 0.70 0.70
I.
Receiving Stream / Neuse River Basin:
Parris Creek
M.
Stream Index Number:
27- 141 -6
n.
Classification of Water Body:
"SA; HQW, NSW"
6. The
following design criteria have been provided in
the infiltration basins and must be
maintained at design condition:
VC II-11 VC II-12
a.
Drainage Area, ft2:
64,988 51,183
b.
Total Impervious Surfaces, ft2:
44,622 30,783
G.
Design Storm, inches:
3.0 3.0
d.
Basin Depth, ft.:
3.75 1.30
e.
Bottom elevations, FMSL:
3.00 3.50
f.
Bottom Surface Area, ft2:
987 5,486
g.
Bypass Overflow Elevations, FMSL:
6.75 4.80
h.
Permitted Storage Volume, ft3:
11,949 8,208
i.
Type of Soil:
Loamy Sands (fill)
j.
Expected Infiltration Rate, in/hr:
1.30 1.30
k.
Seasonal High Water Table, FMSL:
1.00 1.00
I.
Receiving Stream / Neuse River Basin:
Parris Creek
M.
Stream Index Number:
27- 141 -6
n.
Classification of Water Body:
"SA; HQW, NSW"
Page 3 of 9
FAA
State Stormwater Management Systems
Permit No. SV 7080816
7. Treatment systems are designed to overflow from a weir/flow spreader prior to
discharging across the minimum 50 foot Neuse Riparian Buffer. The flow spreaders are
required to be regularly maintained at design conditions as shown per the approved
plans.
II. SCHEDULE OF COMPLIANCE
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.
During construction, erosion shall be kept to a minimum and any eroded areas of the
system will be repaired immediately. Infiltration systems should not be used as erosion
control devices, due to the potential clogging. 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.
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 Plans 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, filter 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 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. 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.
The stormwater systems shall not be used as Erosion Control devices. They must be
kept off line and free from sediment until the project is complete and the entire site has
been stabilized.
Access to the stormwater facilities shall be maintained via appropriate easements at all
times.
Page 4 of 9
State Stormwater Management Systems
Permit No. SV 7080816
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 Director may determine that other revisions to the project should require a
modification to the permit.
11. 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.
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 th e 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.
13. This permit shall be effective from the date of issuance until September 18, 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.
14. No homeowner/lot owner/developer shall fill in, alter, or pipe any drainage feature (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.
15. Prior to transfer of the permit, the stormwater facilities will be inspected by DWQ
personnel. The facility must be in compliance with all permit conditions. Any items not in
compliance must be repaired or replaced to design condition prior to the transfer.
Records of maintenance activities performed to date will be required.
16. Prior to the sale of any lot, the following deed restrictions must be recorded:
a. The following covenants are intended to ensure ongoing compliance with State
Stormwater Management Permit Number SW7080816, as issued by the Division
of Water Quality under NCAC 2H.1000.
b. The State of North Carolina is made a beneficiary of these covenants to the extent
necessary to maintain compliance with the Stormwater Management Permit.
C. These covenants are to run with the land and be binding on all persons and
parties claiming under them.
d. The covenants pertaining to stormwater may not be altered or rescinded without
the express written consent of the State of North Carolina, Division of Water
Quality.
Page 5 of 9
State Stormwater Management Systems
Permit No. SV 7080816
e. Alteration of the drainage as shown on the approved plans may not take place
without the concurrence of the Division of Water Quality.
The maximum built -upon area per lot is (see Exhibit A) square feet. This allotted
amount includes any built -upon area constructed within the lot property
boundaries, and that portion of the right-of-way between the front lot line and the
edge of the pavement. Built upon area includes, but is not limited to, structures,
asphalt, concrete, gravel, brick, stone, slate, coquina and parking areas, but does
not include raised, open wood decking, or the water surface of swimming pools.
g. Lots within CAMA's Area of Environmental Concern may be subject to a reduction
in their allowable built -upon area due to CAMA regulations.
All runoff on the lot must drain into the permitted system. This may be
accomplished through providing roof drain gutters, which drain to the street,
grading the lot to drain toward the street, or grading perimeter swales and
directing them into the pond or street. Lots that will naturally drain into the system
are not required to provide these measures.
17. A copy of the recorded deed restrictions must be submitted to the Division within 30 days
of the date of recording the plat, and prior to selling lots. The recorded copy must contain
all of the statements above, the signature of the Permittee, the deed book number and
page, and the stamp/signature of the Register of Deeds.
18. Built upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick,
stone, slate, coquina and parking areas, but does not include raised, open wood decking,
or the water surface of swimming pools.
19. The permittee is responsible for verifying that the proposed built -upon area for the entire
lot, including driveways and sidewalks, does not exceed the allowable built -upon area.
Once the lot transfer is complete, the built -upon area may not be revised without
approval from the Division of Water Quality, and responsibility for meeting the built -upon
area limit is transferred to the individual property owner.
III. 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.
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 143-215.6A to 143-215.6C.
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.
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.
Page 6 of 9
State Stormwater Management Systems
Permit No. SW7080816
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 reissuance 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 become voidable unless the facilities are constructed in accordance
with the conditions of this permit, the approved plans and specifications, and other
supporting data.
11. A copy of the approved plans and specifications shall be maintained on file by the
Permittee at all times.
Permit issued this the 18`" day of September, 2008.
;RTH CA LINA ENVIRONMENTAL MANAGEMENT COMMISSION
t- I _ 6�> c-2i - - --- for
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7080816
Page 7 of 9
State Stormwater Management Systems
Permit No. SV 7080816
River Dunes Marina & Residential Development
Harbor Village VI & Village Center, Phase II
Stormwater Permit No. SV 7080816
Pamlico 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:
Signature
Registration Number
Date
SEAL
Page 8 of 9
State Stormwater Management Systems
Permit No. SV 7080816
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 elevations are per the approved plan.
6. The bypass structure is located per the approved plans.
7. A 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. 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
Pamlico County Building Inspections
Page 9 of 9
RIVER DUNES
ESTIMATED IMPERVIOUS SURFACES
EXHIBIT A
HARBOR VILLAGE VI
LOT
NUMBER
LOTAREA
SQ. FT.
LOTAREA
ACRES
TOTAL
ALLOWED
IMPERVIOUS
SQ. FT.
PERCENT
IMPERVIOUS
%
RECEIVING
STREAM NAME
DRAINAGE AREA
601
8,946
0.21
4,000
45%
NEUSE RIVER
D.A. VI-1
602
9,006
0.21
4,100
46%
" "
D.A. VI-1
603
9,602
0.22
4,100
43%
" "
D.A. VI-1
604
10,493
0.24
4,100
39%
" "
D.A. VI-1
605
9,780
0.22
4,100
42%
" "
D.A. VI-1 and D.A. VI-
606
9,780
0.22
4,100
42%
D.A. VI-2
607
9,780
0.22
4,100
42%
" "
D.A. VI-2
608
9,780
0.22
4,100
42%
" "
D.A. VI-2
609
9,780
0.22
4,100
42%
" "
D.A. VI-3
610
9,780
0.22
4,100
42%
" "
D.A. VI-3
611
9,795
0.22
4.100
42%
" "
D.A. VI-3
612 -
11,895
0.27
4,100
34%
" "
D.A. VI-3
613
10,884
0.25
4,100
38%
" "
D.A. VI-3
614
11,021
0.25
4,100
37%
" "
D.A. VI-3
615
9,750
0.22
4,100
42%
" "
D.A. VI-3
616
9,751
0.22
. 4,100
42%
" "
D.A. VI-3
617
9,777
0.22
4,100
42%
" "
D.A. VI-3
618
98
0.22
4,100
42%
" "
D.A. VI-3
626
16,77,303
0.24
3,600
35%
" "
D.A. VI-2
627
8,963 -
0.21
3,700
41%
" "
D.A. VI-2
MARINA QUARTERS
36,486
0.84
20,082
55%
" "
D.A. VI-1
MARINA PARKING
23,983
0.55
10,475
44%
" "
D.A. VI-1
259,113 111,557 43%
Drainage Area VI-1 48,907 SF
Drainage Area VI-2 21,650 SF
Drainage Area VI-3 41,000 SF
See Sheet C1.1 for overall plan and lot layout in Harbor Village VI.
,i3.U_'" J `fir •"' p
SEP 15 200%
DWQ
PB.03 0
1of1
High Density Residential Subdivisions
Deed Restrictions & Protective Covenances
In accordance with Title 15 NCAC 2H.1000, the Stormwater Management Regulations, deed restrictions and
srotectiVe covenants are required for High Density Residential Subdivisions where lots will be subdivided and
old and runoff will be treated in an engineered stormwater control facility. Deed restrictions and protective
covenants are necessary to ensure that the development maintains a "built -upon" area consistent with the
design criteria used to size the stormwater control facility.
I, , ✓c , acknowledge, affirm and agree by my signature below, that I will
cause the following deed restrictions and covenants to be recorded prior to the sale of any lot:
1. The following covenants are intended to ensure ongoing compliance with State Stormwater
Management Permit Number Tw9oSop/6 as issued by the Division of Water Quality under
NCAC 2H.1000.
2. The State of North Carolina is made a beneficiary of these covenants to the extent necessary to
maintain compliance with the stormwater management permit.
3. These covenants are to run with the land and be binding on all persons and parties claiming under
them.
4. The covenants pertaining to stormwater may not be altered or rescinded without the express written
consent of the State of North Carolina, Division of Water Quality.
5. Alteration of the drainage as shown on the approved plan may not take place without the concurrence
of the Division of Water Quality. lt& L-t11Y.r /9
6. The maximum allowable built -upon area per lot is square feet. This allotted amount
includes any built -upon area constructed within the lot property boundaries, and that portion of the
right-of-way between the front lot line and the edge of the pavement. Built upon area includes, but is not
limited to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina and parking areas, but does
not include raised, open wood decking, or the water surface of swimming pools.
OR, if the proposed built -upon areas per lot will vary, please REPLACE #6 above with the following:
6. The maximum built -upon area per lot, in square feet, is as listed below:
• Lot # BUA Lot # BUA Lot # BUA Lot # BUA
This allotted amount includes any built -upon area constructed within the lot property boundaries, and
that portion of the right-of-way between the front lot line and the edge of the pavement. Built upon area
includes, but is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina and
parking areas, but does not include raised, open wood decking, or the water surface of swimming
pools.
All runoff from the built -upon areas on the lot must drain into the permitted system. This may be
accomplished through a variety of means including roof drain gutters which drain to the street, grading
the lot to drain toward the street, or grading perimeter swales to collect the lot runoff and directing them
i a of th ter collection system. Lots that will naturally drain into the system are
of requir!onepnrt
vi hese ditional measures.
SignatureDate: ao of
State of
Notary Public in the
County of Ce,41VC N ,
do hereby certify that personally appeared
before me this the day of 24ZI 20 O� , and acknowledge
the due execut' n of the foregoing instrument. Witness my hand and official seal.
is Sigln aA re �}
My Commission expires
T
Porm DRPC-3 Rev. t Page t of 1
SEAL.`,.
I 1L eta '.,f •� �.�
......,,,,N _ -
RIVER DUNES
ESTIMATED IMPERVIOUS SURFACES
EXHIBIT A
L�
HARBOR VILLAGE VI
LOT
NUMBER
LOT AREA
SQ.FT.
LOT AREA
ACRES
TOTAL
ALLOWED
IMPERVIOUS
SQ.FT.
PERCENT
IMPERVIOUS
%
RECEIVING
STREAM NAME
DRAINAGEAREA
601
8,946
0.21
4,000
45%
NEUSE RIVER
D.A. VIA
602-
9,006
0.21
4,100
46%
" "
D.A. VI-1
603•
9,602
0.22
4,100
43%
" "
D.A. VI-1
604'
10,493
0.24
4,100
39%
" "
D.A. VIA
605
9,780
0.22
4,100
42%
" "
D.A. VI-1 and D.A. VI-
606-
9,780
0.22
4,100
42%
" "
D.A. VI-2
607
9,780
0.22
4,100
42%
" "
D.A. VI-2
608,
9,780
0.22
4,100
42%
" "
D.A. VI-2
609
91780
0.22
1 4,100
42%
D.A. VI-3
610,
9,780
0.22
4,100
42%
" "
D.A. VI-3
611.
9,795
0.22
4,100
42%
" "
D.A. VI-3
612
11,895
0.27
4,100
34%
" "
D.A. VI-3
613
10,884
0.25
4,100
38%
" "
D.A. VI-3
614'
11,021
0.25
4,100
37%
" "
D.A. VI-3
615
9,750
0.22
4,100
42%
" "
D.A. VI-3
616"
9,751
0.22
4,100
42%
" "
D.A. VI-3
617
9,777
0.22
4,100
42%
" "
D.A. VI-3
618
9,778
0.22
4,100
42%
" "
D.A. VI-3
626"
10,303
0.24
3,600
35%
" "
D.A. VI-2
627'
8,963
0.21
3,700
41%
" "
D.A. VI-2
MARINA QUARTERS
36,486
0.84
20,082
55%
" "
D.A. VI-1
MARINA PARKING
23,983
0.55
10,475
44%
" "
D.A. VI-1
Drainage Area VI-1
Drainage Area VI-2
Drainage Area VI-3
259,113
48,907 SF
21,650 SF
41,000 SF
111,557 43%
See Sheet C1.1 for overall plan and lot layout in Harbor Village VI.
C,ri
vIVED
SEP 15 2m
DWQ
PROD #
1 of 1
DWQ USE ONLY
t'y D te�Receiyed-TDI
Fee Paid
Permit Number
- -- - - ----
08 8!
AUG 2 1 200E
cep 3/4if
State of North Carolina
1' Al ! n f Department of Environment and Natural Resources
LTV 0 Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form nray be photocopied for use as an original
1. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Mr. Ed Mitchell. President
3. Mailing Address for person listed in item 2 above:
416-A Pollock Street
CityNew Bern State:NC Zip:28560
Phone: (252 ) 634-3373 Fax: (252 1 633-5775
Eniail:ed.mitchell@riverdunes.com
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
River Dunes Marina and Residential Development
Harbor Village VI and Village Center Phase ❑
5. Location of Project (street address):
SR 1317 (Orchard Creek Road)
City:Oriental County:Pamlico Zip:28571
6. Directions to project (from nearest major intersection):
From the intersection of NC-55 and Straight Road, right on Straight Road, right on Orchard Creek Road (SR
1317), right on Old Lighthouse Road (Proposed)
7. Latitude:35° 05' 05" N Longitude:76° 35' 52" W of project
8. Contact person who can answer questions about the project:
Name:Ed Mitchell Telephone Number: (252 ) 634-3373
Emaii:ed.niitchell@riverdunes.com
® H. PERMIT INFORMATION:
Form SWU-101 Version 03.27.08
Page I of 4
1. ' Specify whether project is (check one): ®New ❑Renewal ❑Modification
2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number and its issue date (if known)
® 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):
❑CAMA Major ❑Sedimentation/Erosion Control ❑404/401 Permit ❑NPDESStormwater
•
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 treated using five infiltration basins. Level spreader overflow- devices, located on berms
surrounding the basins and grassed filter strips will be used to treat stormwater and discharge it to the wetlands.
2. Stormwater runoff from this project drains to the Neuse River basin.
3. Total Property Area: 9.06 acres 4. Total Wetlands Area: 0 acres
5. 100' Wide Strip of Wetland Area: N/A acres (not applicable if no wetlands exist on site)
6. Total Project Area**:9.06 acres 7. Project Built Upon Area:56 %
8. How many drainage areas does the project have?5
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', com lete the table with one drainage area for each engineered stormwater device.
Basin Information
Drainage Area 1
Drainage Area 2
Receiving Stream Name
Neuse River
Neuse River
Stream Class & Index No.
SA NSW
SA NSW
Total Drainage Area (so
See
Attached
On -site Drainage Area (so
Off -site Drainage Area (so
Existing Impervious* Area (so
Proposed Impervious*Area (so
% Impervious* Area (total)
Impervious* Surface Area
Drainage Area 1
Drainage Area 2
On -site Buildings (so
On -site Streets (so
On -site Parking (so
On -site Sidewalks (so
Other on -site (so
Off -site (sf)
Total (so:
Form SWU-101 Version 03.27.08
Page 2 of 4
•
STORMWATER MANAGEMENT PERMIT APPLICATION FORM (SWU-101 VER. 3.99)
PART III PROJECT INFORMATION
ITEM 9 -DRAINAGE AREAS
RIVER DUNES MARINA AND RESIDENTIAL DEVELOPMENT - HARBOR VILLAGE VI AND VILLAGE cE IE T I
for tl RE�,
'I
RIVER DUNES CORPORATION
SEP 15 2008
Drainage Area
VI-1
VI-2
VI-3
VCII-Il
VCII-12
DW
Basin Information
;2,1-141_6
Z, 1,LO
PRO
#
Receiving Stream Name
Parris Creek
Parris Creek
Parris Creek
Cedar Creek
Cedar Creek
Totals
Receiving Stream Class
SA NSW
HGLA4
SA NSW
I, W
SA NSW
tkaW
SA NSW
MAW
SA NSW
4zw
Drainage Area (Square Feet)
120,454
66,216
91,984
64,988
51,183
394,825
Existing Impervious Area (Square Feet)
0
0
0
0
0
0
Proposed Impervious Area (Square Feet)
66,257
33,932
54,548
44,622
M,783
230,142
% Impervious Area (Total)
55
51
59
69
60
58
Impervious Surface Area (Sq. Feet)
On -Site Buildings *
29,021
21,650
41,000
13,581
13,210
118,462
On -Site Streets
12,356
6,262
12,365
11,731
5,601
48,315
On -Site Parking (street)
19,886
504
630
6,962
7,295
35,277
On -Site Sidewalks
4,994
5,516
553
3,078
4,677
18,818
Off -Site
0
0
0
0
0
0
Other (pool patio)
9,270
9,270
Total (Square Feet)
66,257
33,932
54,548
44,622
30,783
230,142
* Impervious surface area for on -site buildings includes driveways and is a maximum amount.
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidetualks, gravel areas, etc.
"Total project area shall be calculated based on the cement policy regarding inclusion of wetlands in the built upon area
percentage calculation. This is the area used to calculate percent project built upon area (BUA).
® 10. How was the off -site impervious area listed above
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 ham://h2o.etir.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 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.
P
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 and General Permits Unit at (919) 733-5083 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
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 Wetland Supplement
Grassed Swale Supplement
Sand Filter Supplement
Permeable Pavement Supplement
Form SWU-101 Version 03.27.08 Page 3 of
Vf. 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 hap://h2o.enr.state.nc.us/su/msi maps.hun)
•
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
• Original and one copy of the Deed Restrictions & Protective Covenants Form (if
G/�lf3
required as per Part IV above)
• Original of the applicable Supplement Form(s) and 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
G/I'/B
• Copy of any applicable soils reportR
• Two copies of plans and specifications (sealed, signed & dated), including:
- Development/Project name
- Engineer and firm
-Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands 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):McKim & Creed, P.A.
Mailing Address:1730 Varsity Drive, Suite 500
City:Raleigh State:NC Zip:27606
Phone: (919 1 233-8091
EmaiLcblazier@mckimcreed.com
VIIL APPLICANT'S CERTIFICATION
Fax: (919 ) 233-8031
I, (print or type name of person listed in General Information, item 2) Ed Mitchell
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
Date: 11 i U
Form SWU-101 Version 03.27.08
Page 4 of 4
Permit Number: S V 7 J Fd F
(to be provided by DWQ)
Drainage Area Number: VI- 1
• 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:
Potentialproblem:
How I will remediate theproblem:
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
s
BAN
- BAN
M
•
•
•
The forebay
The main treatment area
embankment
The outlet device
The receiving water
blem:
Sediment has accumulated
and reduced the depth to 75%
of the original design depth.
Erosion has occurred or
riprap is displaced.
Weeds are present.
A visible layer of sediment
has accumulated.
Water is standing more than
5 days after a storm event.
Weeds and noxious plants are
growing in the main
treatment area.
Shrubs or trees have started
to grow on the embankment.
An annual inspection by an
appropriate professional
shows that the embankment
needs repair.
Clogging has occurred
The outlet device is damagec
Erosion or other signs of
damage have occurred at the
outlet.
How I will remediate the problem:
Search for the source of the
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.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Remove the weeds, preferably by
hand. If pesticides are used, wipe
them on the plants rather than
Search for the source of the
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
Replace the top few inches of filter
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.
Remove the plants by hand or by
wiping them with pesticide (do not
Remove shrubs or trees
Make all needed repairs.
Clean out the outlet device. Dispose
of the sediment off -site.
Repair or replace the outlet device.
Contact the NC Division of Water
Quality 401 Oversight Unit at 919-
733-1786.
Form SW401-Infiltration Basin O&M-Rev.3
Page 2 of 3
Permit
(to be provided by DWQ)
•
•
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:River Dunes Marina and Residential Development - Harbor Village VI
BMP drainage area number:FIV VI-1
Print name:
Address:416-A Pollock Street, New Bern, NC 28560
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,Q(v�CI7S a Notary Public for the State of
County of ��� t/C'—/✓ do hereby certify that
personally appeared before me this q 'o'66
day of 400 V , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official seal,
• oec
SEAL
My commission expires /a���a0w
Form SW401-Infiltration Basin O&M-Rev.3
Page 3 of 3
Permit Number:
(to be provided byC DWQ)
Drainage Area Number: VV -j-
1
Infiltration Basin Operation and Maintenance Agreement
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
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:
Potentialproblem:
How 1 will remediate theproblem:
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
•
BMP element:
Potentialproblem:
How I will remediate theproblem:
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-
outlet.
733-1786.
Form SW40 I -Infiltration Basin O&M-Rev.3
Page 2 of 3
Permit Number:
(to be provided by DWQ)
® I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
r1L
•
Project name:River Dunes Marina and Residential Devlopment - Village Center Phase II
BMP drainage area number:VC 11-11
Print
1.t• Mi
Note: The legally responsible parry 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.
u) . gawks n' s
a Notary Public for the State of
County of eyAV-5l1% , do hereby certify that
S I �r h U personally appeared before me this 9-044)
day of L -Lti 0 and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official seal,
000 -
A6L1�:'''
SEAL
My commission expires Ia'l -aI g l U
Form SW40 I -Infiltration Basin O&M-Rev.3 Page 3 of 3
Permit Number:
(to be provided by DWQ)
Drainage Area Number: 4Z- Z
® 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.
do
BMP element:
Potentialproblem:
How I will remediate theproblem:
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 SW40 I -Infiltration Basin O&M-Rev3 Page 1 of 3
s
E
ON R
main treatment area
The outlet device
Sediment has accumulated
and reduced the depth to 75%
of the original design depth.
Erosion has occurred or
riprap is displaced.
Weeds are present.
A visible layer of sediment
has accumulated.
Water is standing more than
5 days after a storm event.
Weeds and noxious plants are
growing in the main
treatment area.
Shrubs or trees have started
to grow on the embankment.
An annual inspection by an
appropriate professional
shows that the embankment
needs reoair.
Clogging has occurred
How I will remediate the problem:
Search for the source of the
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.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Remove the weeds, preferably by
hand. If pesticides are used, wipe
them on the plants rather than
Search for the source of the
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
Replace the top few inches of filter
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.
Remove the plants by hand or by
wiping them with pesticide (do not
Remove shrubs or trees
needed repairs.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged I 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-Infiltration Basin O&M-Rev.3
Page 2 of 3
Permit Number:
(to be provided by DWQ)
® I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:River Dunes Marina and Residential Development - Harbor Village VI
BMP drainage area number:
Print
,E. tvll C611
Address:416-A Pollock Street, New Bern, NC 28560
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, ((& W. 146W � L/ 5 , a Notary Public for the State of
--A�NC, , County of U qyc/\) , do hereby certify that
AA r�Cr t be personally appeared before me this apt
day of frlLq U Si` )XII , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official seal,
��'`
^, fit• !�-• _
My commission expires [.1J 31 D-016
Form SW40!-Infiltration Basin O&M-Rev3 'Page 3 of 3
Permit Number: SWol0V P
(to be provided by DWQ)
Drainage Area Number: VU-,_z
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:
Potentialproblem:
How I will remediate theproblem:
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
11
BMP element:
Potentialproblem:
How I will remediate theproblem:
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-
outlet.
733-1786.
Form SW401-Infiltration Basin O&M-Rev.3
Page 2 of 3
e
Permit Number:
(to be provided by DWQ)
SI 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:River Dunes Marina and Residential Devlopment - Village Center Phase II
BMP drainage area number:VC II-12
Print name:Mr. Ed Mitchell M l�che.L
Title:
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, �Q;(,( u (A-) , Nauy6n' S , a Notary Public for the State of
NC , County of C RAV6N , do hereby certify that jk
:1. F . ml+c u personally appeared before me this Zo
day of A Lk%VS� , 20(0 16 , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official seal,
r
SEAL
My commission expires l 2' 3')-0 10
Form SW401-Infiltration Basin O&M-Rev.3 Page 3 of 3
Permit No. G/ ,f 7, 0TA0
(to be provided by DWQ)
A-
LNNL'�
O20F WAT9; O
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
o
NCDENR
401 CERTIFICATION APPLICATION FORM
O
INFILTRATION 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
River Dunes Village Center Phase II
Contact Person
Ed Mitchell
Phone Number
252-634-3373
Date
18-Aug-2008
Drainage Area Number
VCI -12
II. DESIGN INFORMATION
Site Characteristics
Drainage area
51,183.00 ft2
Impervious area
30,783.00 ft2
Percent impervious
0.60
Design rainfall depth
3.00 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr runoff volume
Post -development 1-yr, 24-hr runoff volume
Pre/Post 1-yr, 24-hr peak Flow control
Storage Volume: Non -SR Waters
Minimum design volume required
*esign volume provided
Storage Volume: SR Waters
1-yr, 24-hr rainfall depth
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Soils Report Summary
Soil type
Infiltration rate
SHWT elevation
Basin Design Parameters
Drawdown time
Basin side slopes
Basin bottom elevation
Storage elevation
Storage SA
Top elevation
Basin Bottom Dimensions
Basin length
Basin width
Bottom SA
l J
3.48
in
0.15
inlhr
1.73
ft3/sec
3.21
ft3/sec
1.48
ft3/sec
7,566.00 1
8,208.00 ft3
in
ft3
ft3
ft3
ft3
tM
OK for non -SR waters
1.30
inlhr
1.00
fmsl
0.58
days OK
3.00
1 OK
3.50
fmsl OK
4.80
fmsl
7,152.00
ft2
6.00
furs]
158.00 fit
30.00 ft
5,486.00 ft2
Form SW401-Infiltration Basin-Rev.2 Pans I. & IL Design Summary, Page 1 of 2
Permit
(to be provided by DWQ)
Additional Information
Total runoff volume captured by basin
0.92
ac-in
Length of vegetative filter for overflow
50.00
it
istance to structure
NIA
It
istance from surface waters
50.00
ft
Distance from water supply well(s)
NIA
It
Separation from impervious sail layer
NIA
It
Naturally occuring soil above shwt
2.00
It
Bottom covered with 4-in of clean sand?
Y
(Y or N)
Proposed drainage easement provided?
Y
(Y or N)
Capures all runoff at ultimate build -out?
Y
(Y or N)
Bypass provided for larger storms?
NIA
(Y or N)
Pretreatment device provided
N
0
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
Form SW401-Infiltration Basin-Rev.2 Pans I. & II. Design Summary. Page 2 of 2
Permit
(to be provided by DWQ)
,•
0
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.
G7R e— J 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.
4 l'I l3 f,2!�F 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.
cam$ '24/ 9 3. Section view of the infiltration basin IV = 20' or larger) showing:
- Pretreatment and treatment areas, and
Inlet and outlet structures.
G� 3� �S_cTj,WAtable of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided.
G 4'442-ft V4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
S6cj,� 44 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.
Gm�S 6. A construction sequence that shows how the infillration basin will be protected from sediment until the
�^ entire drainage area is stabilized.
G Toh The supporting calculations.
G� 197 &o%8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
G�PL A 9. A copy of the deed restrictions (if required).
Form SW401-Infiltration Basin-Rev.2
Page 1 of 1 Part III. Required Items Checklist, Page 1 of 1
Permit Number: J�'1 7,ag d f 1�
(to be provided by DWQ)
Drainage Area Number: VT-3
• 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:
Potentialproblem:
How I will remediate theproblem:
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
•
•
•
BMP element:
Potentialproblem:
How I will remediate theproblem:
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-
outlet.
733-1786.
Form SW401-Infiltration Basin O&M-Rev.3
Page 2 of 3
Permit Number:
(to be provided by DWQ)
® 1 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:River Dunes Marina and Residential Development - Harbor Village VI
BMP drainage area number:
Print name:Mr. Ed Mitchell MI ti (L(
Title:President
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,Q� 1 2 l l%•Q w�(-n5 a Notary Public for the State of
NJ C _ County of O.ZA VC 1�) , do hereby certify that
F� , \I�eh ac personally appeared before me this
day of C , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official seal,
My commission expires 3/ o20 hD
Form SW40 I -Infiltration Basin O&M-Rev.3 Page 3 of 3
Permit No. Jy/, o o 19/ 4
Ito be provided by DWQJ
A�
®�
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
�aF WATFH
o
O NCDENR
401 CERTIFICATION APPLICATION FORM
INFILTRATION 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
River Dunes Village Center Phase II
Contact Person
Ed Mitchell
Phone Number
252.634-3373
Date
22Jun-2008
Drainage Area Number
VCI I-11
II. DESIGN INFORMATION
Site Characteristics
Drainage area
64,988.00 fe
Impervious area
44,622.00 ft
Percent impervious
0.69 %
Design rainfall depth
3,00 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
3.48 in
1-yr, 24-hr intensity
0,15 in/hr
Pre -development 1-yr, 24-hr runoff volume
2.19 ft3/sec
Post -development 1-yr, 24-hr runoff volume
4.34 ft3/sec
Pre/Post 1-yr, 24-hr peak flow control
2.15 ft3/sec
Storage Volume: Non -SR Waters
Minimum design volume required
Design volume provided
Storage Volume: SR Waters
1-yr, 24-hr rainfall depth
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Soils Report Summary
Soil type
Infiltration rate
SHWT elevation
Basin Design Parameters
Drawdown time
Basin side slopes
Basin bottom elevation
Storage elevation
Storage SA
Top elevation
Basin Bottom Dimensions
Basin length
Basin width
Bottom SA
10,852.00 ft3
11,949.00 ft3
G
ft3
0
ft3
ft3
SM
1.30 inmr
1.00 fmsl
0.42 days
3.00
:1
3.00
fmsl
6.75
fmsl
5,507.00
ft2
7.50
fmsl
175.00 If
12.00 It
987.00 ft2
OK for non -SR waters
OK
OK
OK
Form SW401-Infiltration Basin-Rev2 Parts I. & ll. Design Summary, Page 1 of 2
Permit
(to be provided by DWO)
Additional Information
Total runoff volume captured by basin
1.55
ac-in
Length of vegetative filter for overflow
50.00
ft
istance to structure
NIA
it
islance from surface waters
50.00
ft
Distance from water supplywell(s)
NIA
ft
Separation from impervious soil layer
NIA
ft
Naturally occuring soil above shwt
2.00
ft
Bottom covered with 4-in of clean sand?
Y
(Y or N)
Proposed drainage easement provided?
Y
(Y or N)
Capures all runoff at ultimate build -out?
Y
(Y or N)
Bypass provided for larger storms?
NIA
(Y or N)
Pretreatment device provided
NIA
r 1
U
•
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
Form SW401-Infiflration Basin-Rev.2 Pans I. & It. Design Summary, Page 2 of 2
Permit No.
(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.
G/►1B �L.J,4=3, 1 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.
C MB 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.
C/�18QJ'r 3. Section view of the infiltration basin (1" = 20' or larger) showing:
- Pretreatment and treatment areas, and
Inlet and outlet structures.
'CM g joy- 'Cfj4d A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided.
G[vTEeN 5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
pA1,4 ,� 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.
C1419 V.S 6. A construction sequence that shows how the infitlration basin will be protected from sediment until the
entire drainage area is stabilized.
4_ � CAC___SCrCN The supporting calculations.
Q!70 copy of the signed and notarized operation and maintenance (0&M) agreement.
G/�I$ " -. , 9. A copy of the deed restrictions (if required).
Form SW401-Infiltration Basin-Rev.2 Page 1 of 1 Part III. Required Items Checklist, Page 1 of 1