HomeMy WebLinkAboutSW8040206_Current Permit_20110322��
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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
March 22, 2011
Ms. Ann Joslin, President
Island Walk at Snows Cut Homeowners Association
8725 Sedgley Drive
Wilmington, NC 28412
Subject:. Name Change / Ownership Change
Island Walk at Snows Cut
Stormwater Project No. SW8 040206
New Hanover County
Dear Ms. Joslin:
On March 15, 2011, the Wilmington Regional Office received a request to transfer ownership of
the Stormwater Management Permit for the subject project. Staff of the Division of Water Quality
have inspected the project, determined that the documentation is in order, and the project is in
compliance with the Stormwater permit requirements. As indicated on the Name/Ownership
Change form, you have acknowledged receipt of a copy of the permit, which includes the
application and supplement forms, a copy of the approved plans and a copy of the required
Operation and Maintenance agreement from the previous permittee. By acknowledging receipt
of the permit, and by signing the Name/Ownership Transfer form, you have accepted the
responsibility for complying with the terms and conditions outlined in this permit. If you need
additional copies of the permit, or copies of the approved plans, please contact the Division of
Water Quality in the Wilmington Regional Office at the phone number below. Please add the
attached Transfer page as the new cover page for the permit. Please note that when the
President/Officer of the HOA changes, notification to this office of the new point of contact for
the Island Walk at Snows Cut Homeowners Association is required.
Please be aware that the project's built -upon area and stormwater controls must be built and
maintained in compliance with the permit documents and the approved plans. Maintenance
of the approved system shall be performed in accordance with the Operation and
Maintenance agreement. Any modifications to this project must be submitted to the Division
of Water Quality and approved prior to construction. The issuance of this approval does not
preclude you from complying with all other applicable statutes, rules, regulations or
ordinances, which may.have jurisdiction over the proposed activity, and obtaining a permit
or approval prior to construction.
If you have any questions concerning this matter, please do not hesitate to call Angela
Hammers or me at (910) 796-7215.
Sincerely,
-evrgett So
Stormwater Supervisor
Division of Water Quality
GDS1akh: S:1WQS1StormWater\Permits & Projects120041040206 HD12011 03 permit 040206
cc: Dawn Cockman; Town of Carolina Beach Inspections; WiRO; Angela Hammers
rr'iimington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405 �pC
Phone: 910-796-7215lFAX: 910-350-20041Customer Service:1-877-623-6748 One � '�jina
Internet: vuww,ncwaterquality.org ���������
An Equal OPDortunity 1 Affirmative Action Emnlnvar
State Stormwater Management Systems
Permit No. SW8 040206
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
Ann Joslin & Island Walk at Snows Cut Homeowners Association
Island Walk at Snows Cut
518 Spencer Farlow Road, New Hanover County
FOR THE
operation and maintenance of an infiltration basin 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 August 30, 2014, and shall
be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. The stormwater control
has been designed to store and infiltrate the runoff from 2" of rain falling over
26,268 square feet of impervious area.
3. The tract will be limited to the amount of built -upon area indicated on page 3 of this
permit, and per the approved plans.
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 the
approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this project
must be directed into the permitted stormwater control system.
AW
*A&
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary,+
STATE STORMWATER PERMIT NAME/OWNERSHIP CHANGE FORM
I. CURRENT PERMIT INFORMATION
1. Stormwater Management Peimit Number:
2. Project Name:
3. Current Permit Holder's Company Name/Organization: DraJ-A-)Z- CO(,� Q ld.
4. Signing Official's Name:�5l. Uh a����Jhla�7s CLcT Title:
5. Mailing Address: S _S ��y��-�,,./ (�•• . V �,� ���
City: C Q\f'Z : %W-,, 5.4L ,.. State: N L Zip: '15k S
6. Phone: (CL P 15n 1---> ^ 1�") l� Fax:
11. PROPOSED PERMITTEE / OWNER / PROJECT / ADDRESS INFORMATION
This request is for: (please check all that apply)
[O' Name change of the owner (Please complete Items 1, 2 and 3 below)
FTName change of project (Please complete Item 5 below)
Change in ownership of the property/company (Please complete Items 1, 2, 3, and 4 below)
❑ Mailing address / phone number change. (Please complete Item 4 below)
❑ Other (please explain):
r a
1. Proposed permittee's company name/organization: �� r ( r�`f
2. Proposed permittee's signing official's name: Av%r , 3-1* 1 a 1% ��vs �55oc.• �i�� �,•.
3. Proposed permittee's title: 9y e,7, dtvJf
4. Mailing Address: I
City: \Ai �Mi State: NG Zip: 'P$%1\1-
Phone: (C(1o) 4 5 S - d 311 Fax: ((I lo) '151- Ss !g Lt j
5. New Project Name to be placed on permit: -5 Wavr.J V(6AV, ai'�)r
Please check the appropriate box. The proposed permittee listed above is:
® HOA or POA (Attach documentation showing that the HOA or POA owns, controls, or has a
r6corder7 easement for all areas that contain stormwater system features. Print name of HOA or
POA in V above and provide name of HOAIPOA's authorized representative in #2 above)
❑ The property owner
❑ Lessee (Attach a copy of the lease agreement and complete Property Owner Information on
page 4)
❑ Purchaser (Attach a copy of the pending sales agreement Final app "I'll Or will be
granted upon receipt of a copy of the recorded deed) `-{
❑ Developer (Complete Property Owner Information on page 4) MAR 16 2011
Page 1 of 4
BY:
111111. REQUIRED ITEMS
A request to transfer a permit will not be approved by the Division of Water Quality (DWQ) unless all
of the applicable required items listed below are included with the submittal. Failure to provide the
listed items may result in processing delays or denial of the transfer.
1. This completed and signed form, This certification must be completed and signed by both the
current permit holder and the new applicant if this is a change of ownership.
2. Legal documentation of the property transfer to a new owner.
3. A copy of any recorded deed restrictions, covenants, or easements, fi required by the permit.
4. The designer's certification (DWQ Engineer and Designer Certification Forms are available from
each DWQRegional office), if required by the permit and if not already submitted to DWQ.
5. If e proposed
r ' other
is a firm, partnership, association, institution, corporation, limited liability
comp
any, y, o of er corporate entity, provide documentation showing the authority of the named
representative to act on behalf of the proposed permittee.
6. The $40.00 processing fee. If this is an initial transfer from the original permittee the processing
fee is not required. Subsequent ownership transfers will require the $4().00 processing fee.
Ili. CURRENT PERi#i TTEE'S CER 1FICATION
Please chec* one of the following statements and till out the cer x ativn below that statement:
❑ Check here if the current permittee is only changing his/herlits name, the project name, or mailing
address, but will retain the permit 1, ,the current
permittee, hereby notify the DWQ that 1 am changing my name and/or I am changing my mailing
address and/or I am changing the name of the permitted project. I further attest that this application
for a namelownership change is gate and complete to the best of my knowledge. I understand
that if all required parts of this appkaWn are not competed or if all required supporting information
and attachments listed above are not included, this application package will be returned as
incomplete.
W Check here if current permittee is transferring the property to a new owner and will not retain
owne ip of the permit.
Co CIL the current permittee, am submitting this application
for a transfer of ownership for permit # 5 %-AL S O Q-L o% . I hereby notify DWQ of the sale or
other legal transfer of the stormwater system associated with this permit. I have provided a copy of
the most recent permit, the designees —duication for each BIVIP, any recorded deed restrictions,
covenants, or easements, the DWQ approved plans ardor plans, the droved
operation and maintenance agreement, past aintenance records and the most recent DWO
stormwater inspection report to the proposed permittee named in Sections li and V of this form. i
further attest that this application for a name%w riorship change is accurate and Complete to the best
of my knowledge, I understand that if all required parts of this applicatioon are not completed or if all
required supporung information and attachments listed above are not included, this application
package will be returned as incomplete. I assign ' all rights and obligations as permittee to the
permittee
proposed named in #ions 11 addV of this form. I understand that this transfer of
ownership cannot be approved by the DWQ unless and until the facility is in compliance with the
permit.
Signature. Date: 3 - (O-1/
I,y Sa a� I �i� a Notary Public for the State of
J _._-....,County of ..l(l�e ter%_ _ _ do here y certify that
persoappea na red befor me thi the
/ day of _ .1/(A-t'A . 20 I 1 . and acCc ,w"gq the due execution of the
forgoing instrument. Witness my hand and official seal,lotary Seal)
NotarySignature NOTARY ram+ C ���j-
ig c *** _ M,
p� PUBLIC t 5
L.+C9-> i y
1 �- Page 2 of 4
V. PROPOSED PERMITTEE CERTIFICATION: (This section must be completed by the
Proposed Pennittee for all transfers of ownership)
I,1. 16 M Waky- ark Sao..., I C.• k "-aY" 20 wwy-5 , hereby notify the DWQ that I have acquired
through sale, lease or legal transfer, the responsibility for operating and maintaining the permitted
stormwater management system, and, if applicable, constructing the permitted system. I
acknowledge and attest that I have received a copy of: (check all that apply to this permit)
Hthe most recent permit
the designer's certification for each BMP
any recorded deed restrictions, covenants, or easements
❑ the DWQ approved plans and/or approved as -built plans
❑ the approved operation and maintenance agreement
past maintenance records from the previous permittee (where required)
DWQ stormwater inspection report showing compliance within 90 days prior to this transfer
I have reviewed the permit, approved plans and other documents listed above, and I will comply with
the terms and conditions of the permit and approved plans. I acknowledge and agree that I will
operate and maintain the system pursuant to the requirements listed in the permit and in the
operation and maintenance agreement. I further attest that this application for a name/ownership
change is accurate and complete to the best of my knowledge. I understand that it all required parts
of this application are not completed or if all required supporting information and attachments listed
above are not included, this appliry�iion package will be returned as incomplete.
I, S ;15e vn Trr C a Notary Public for the State of
County of JeM1*tn6VV-r- , do he a y�ertify that
(Inn � (t) . J-D S(1n ( personally appeared before m7 this the
1 day of -YV la , 20 it , and acknowledge the due exe, uI n of the
forgoing instrument Witness my hand and official seal,
(Notary Seat) NOTARY
Notary Signature
✓�e
Additional aapies of the original permit and the approved Operation and Mairrtenan+ce agreement can
be obtained from the appropriate Regional Office of the Division of Water Quality.
This completed form, including all s rtin�r documents and messing feeif required), should be
sent to the ropriate Regional o of the North Carolina rtrrient of Environment and Natural
}resources, t�ivision of Miller Quality, as shown on the attach map.
Please note that if the Proposed Perawtee listed above is not the property owner, the property owner
roust complete and sign page 4 of this document: Both the lest /d r-vvkperand tie pmp"
owner will appear on the permit as pennittees:
Page 3 of 4
TE 03093
State Stormwater Management Systems
Permit No. SW8 040206
Island Walk at Snows Cut
Stormwater Project No. SW8 040206
New Hanover County
Engineer's Certification
I, Phillip G. Tripp , 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,
Island Walk at Snows Cut
(Project)
for Dawn S. Cockman _ (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 specifications:
ppR 2 a 7-0Z
LA. SEAL
Signature I
\PVJ
Zb� i
Registration Number 17374 44° ti9 s'
` SEAL �
Date _ -c 17374 , a
•,s��,o GR God, \' e" '
State Stormwater Management Systems
Permit No. SW8 040206
Certification Requirements: Page 2 of 2
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.
A_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.
0 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.
11. The permitted amounts of surface area and/or volume have been
provided.
12. Required drawdown devices are correctly sized and located per the
approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided.
915. The required system dimensions are provided, per the approved plan.
X�9
R�G�y 20�0
OFFICE USE ONLY
Date Received
Fee Paid
Permit Number
_Q,
It!- /
a aa„0
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
I. GENERAL INFORMATION
Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Dawn S. Cockman
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Dawn S. CockmanOwner
3. Mailing Address for person listed in item 2 above:
518 Spencer Farlow Rd.
City: Carolina Beach State: NC Zip: 28428
Telephone Number: 910-458-8064
4. Project Name (subdivision, facility, or establishment name —should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
Island Walk at Snows Cut
5. Location of Project (street address):
518 Spencer Farlow Rd
City: Carolina Beach County: New Hanover
6. Directions to project (from nearest major intersection):
7. Latitude: N 340 00' 00" Longitude: W 770 00' 00" of project
8. Contact person who can answer questions about the project:
Name: Charles D. Cazier Telephone Number: 910-763-5100
II. PERMIT INFORMATION:
1. Specify whether project is (check one): X New Renewal Modification
Form SWU-101 Version 3.99 Page 1 of 4
2. If this application is being submitted as the result of a renewal or modification to an existing permit, list
The existing permit number NA and its issue date (if known)
3. Specify the type of project (check one):
Low Density X High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
CAMA Major X 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
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.
on site open infiltration basin
2. Stormwater runoff from this project drains to the
Ca e Fear
River basin.
3. Total Project Area: 1.25 acres
4. Project Built Upon Area:
48.2 %.
5. How many drainage basins does the project have? 1
6. 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 Basin 1
Drainage Basin 2
Receiving Stream Name
Snows Cut
Receiving Stream Class
SB
Drainage Basin Area
1.25 ac
Existing Impervious * Area
-
Proposed Impervious * Area
0.60 ac
% Impervious* Area (total)
48.2%
Impervious * Surface Area
Drainage Basin 1
Drainage Basin 2
On -site Buildings
15,960 sf
On -site Streets
-
On -site Parking
10,308 sf
On -site Sidewalks
-
Other on -site
-
Off -site
-
Total:
E=26,268 sf
E=
* Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking
areas sidewalks, gravel areas, etc.
Form SWU-101 Version 3.99 Page 2 of 4
7. How was the off -site impervious area listed above derived? NA
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.
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 square feet of any lot shall be covered by structures of 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 swimmingpools.
3. Swales shall not be filled in, piped or altered except as necessary to provide driveway crossings.
4. Built -upon area in excess of thepermitted amount requires a state stormwater management permit modificationprior
to construction.
S. All permitted rungf, j 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.
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 (910) 733-5083 for
the status and availability of these forms.
Form SW-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 SW-109
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of 4
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
1. Please indicate that you have provided the following required information by initialing in the space
provided next to each item.
Applicant's Initials
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each BMP
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of stormwater treatment/management
• Two copies of plans and specifications, including:
- Development/Project name
- Engineer and firm
- Legend
- North arrow
- Scale
- Revision number and 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): Tripp Engineering, P.C.
Mailing Address: 419 Chestnut Street
City: Wilmington State: NC Zip
Phone: (910) 763-5100 Fax: (910) 763-5631
VIII. APPLICANT'S CERTIFICATION
28401
I, (print or type name ofperson listed in General Information, item 2) Dawn S. Cockman
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project wi be constructed in conformance with the approved plans, that the required deed restrictions
and protective c e is will be recorded, an at a prosed project complies with the requirements of 15A
NCAC 2H. 100 /( 1 / /
Signature:
Date: / iV
Form SWU-101 Version 3.99 Page 4 of 4
Permit No. SW8 040206
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form may be, photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name: Island Walk at Snows Cut
Contact Person: Charles D. Cazier Phone Number: (910) 763-5100
This worksheet applies to: Basin No. _ _ 1 in Drainage Area 1 _
(as identified on plans) (from Form SWU-101)
II. DESIGN INFORMATION — Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable
source of soils information. All elevations shall be in feet mean sea level (fmsl).
Soils Report Summary
Soil Type _Beach Sand
Infiltration Rate 79 (j�r cf/hr/sf (circle appropriate units)
SHWT Elevation 17.0 fm' sl (Seasonal High Water Table elevation)
Basin Design Parameters
Design Storm
Design Volume
Drawdown Time
Basin Dimensions
Basin Size
Basin Volume Provided
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
Form SWU-103 Rev 3.99
2.0 inch (1. S inch event for SA waters, 1 inch event for others)
4,456 c.f.
0.46 days hours
13 ft. x 55
4,731 c.f.
19 fmsl
22.0 fmsl
23 fmsl
Page 1 of 3
ft. = 716 sq. ft. (bottom dimensions)
II1. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Applicants Initials
O-Oc- a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
[ps` b. System is located at least 100 feet from water supply wells.
C1JC_ c. Bottom of system is at least 2 feet above the seasonal high water table.
KL_ d. Bottom of system is 3 feet above any bedrock or impervious soil horizon.
C_pc- e. System is not sited on or in fill material or DWQ approval has been obtained
C�� f. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
GpU _ g. Drainage area for the device is less than 5 acres.
GCX_ h.. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters). Design volume and infiltration calculations attached.
G� j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage. Calculations attached.
k. All side slopes stabilized with vegetated cover are no steeper than 3:1(H:V).2:1 & sodded
GpL 1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
in. Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches
or dense vegetative cover is provided.
n. Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet jf'or other water )NA,�.
9�tnlaloci l �1 � -79 ��fo. AoWZ"%VeAL--$ed1distribution manism n basin is provided.
p. A benchmark is provided to determine the sediment accumulation in the pretreatment
device.
NAL q. Runoff in excess of design volume bypasses off-line systems (bypas de J 1 provided).
I� S'[ P�ID�tb�l
Cry, s em r . yis designed to draw down the design storage volume to the propose bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
CVC. s. Plans ensure that the installed system sill meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area
is stabilized.
Form SWU-103 Rev 3.99 Page 2 of 3
IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
1. After every runoff producing rainfall event and at least monthly, inspect the infiltration system for erosion,
trash accumulation, grass cover, and general condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetative cover to maintain a maximum height of six inches, and remove trash as needed.
3. After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved
design specifications.
4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when
depth in the pretreatment unit is reduced to 75% of the original design depth. The system shall be restored
to the original design depth without over -excavating. Over excavating may cause the required water
table separation to be reduced and may compromise the ability of the system to perform as designed.
Removed sediment shall be disposed of in an appropriate manner and shall not be handled in a manner
That will adversely impact water quality (i.e. stockpiling near a stormwater treatment device or stream,
etc.).
A benchmark shall be established in the pretreatment unit. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used
to determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the design depth reads 0.75 feet in the pretreatment unit, the sediment shall be removed
from both the pretreatment unit and the infiltration basin.
5. If the Division determines that the system is failing, the system will immediately be repaired to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater
control devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
I acknowledge and agree by my signature below that I am responsible for the performance of the five
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 and Title: Dawn S. Cockman, Owner
Address:
Phone:
Signature:
Date: /— /J —
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, Della C. Baird , a Notary Public for the State of North Carolina , County of Pender
do hereby certify that Dawn S. Cockman personally appeared before me this %S day of
_Tanuar , _2004_, and acknowledge the due executioppn®®of the forgoiin'g infiltration basin maintenance requirements.
Witness my hand and official seal,.�i�Gi'/�-- G 'C'G�
`��►�unuw�,,�
SEAL AR Y
4W
My commission expires _October 15, 2006
Form SWU-103 Rev 3.99 �'���,,�R� C011���,�``� Page 3 of 3