HomeMy WebLinkAboutSW8010314_HISTORICAL FILE_20010810STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 G� 031-�
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
® HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
low 09 to
YYYYMMDD
North Carolina
Department of Environment and Natural Resources
Division of Water Qualih
Wilmington Regional Office
Michael F. Easlcy, Governor
William G. Ross Jr., Sccrctar�,
August 10, 2001
Mr. Robert G. Martin, President
Carolina Eve Associates
2170 Midland Road
Southern Pines. NC 28387
Subject: Permit No. SW8 010314 Modification
Carolina Eye Associates
High Density Stormwater Project
New Hanover County
Dear Mr. Martin:
The Wilmington Regional Office received a complete Stormwater Management Permit Application for Carolina
Eve Associates on August 6, 2001. 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. SW8 010314 Modification dated August 10, 2001, for the construction of Carolina Eye Associates.
This permit shall be effective from the date of issuance until August 10, 2011, and shall be subject to the conditions
and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements
in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management
system will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an
adjudicator), 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 2761 1-7447. 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 Noelle Lutheran,
or me at (910) 395-3900.
Sincerely,
Rick Shiver — l
Water Quality Regional Supervisor
RSS/nml: S:AWQS\STORMWAT\PERMIT\010314.AUG
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Tony Roberts, New Hanover County Inspections
Beth E. Wetherill, New Hanover County Engineering
Division of Coastal Management
Noelle Lutheran
Wilmington Regional Office
Central Files
P1
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004
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State Stormwater Management Systems
Permit No. SWS 010314 Modification
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
Mr. Robert G. Martin, President
Carolina Eye Associates
New Hanover County
FOR THE
construction, 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 managem ent plans and specifi cations and other
supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this
Penn it.
This permit shall be effective from the date of issuance until August 10, 2011 and shall be subject to the following specified
conditions and limitations:
I. DESIGN STANDARDS
I. This permit is effective only with respect to the nature and volume of stormwater described in the application and
other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as described on page 3 of this
permit, the Project Data Sheet. The stormwater control has been designed to handle the runoff from 34,937 square
feet of impervious area.
3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the
permit.
4. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per 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. A permit modification must be submitted and approved pri or to the construction
of additional built -upon area from outside of the approved drainage area.
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
State Stormwater Management Systems
Permit No. SW8 010314 Modification
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Carolina Eye Associates
SW8 010314 Modification
New Hanover County
Mr. Robert G. Martin, President
Carolina Eye Associates
2170 Midland Road
Southern Pines, NC 28387
Application Date: August 6, 2001
Name of Receiving Stream/index #:
Classification of Water Body:
If Class SA, chloride sampling results:
Basin Depth, feet:
Seasonal High Water Table, FMSL:
Bottom Elevation, FMSL:
Top Elevation, FMSL:
Drainage Area, acres:
Total Impervious Surfaces, ft':
Offsite Area entering Pond, ft':
Required Storage Volume, ft':
Provided Storage Volume, ft':
Infiltration Rate, In/hr:
Dravedown Time:
Cape Fear / .lumpin Run / l 8-76-1-3
"C Sw"
n/a
3
23.5
26.6
29.5
1.94
34,937
None, per Engineer
3,940
12,900
30"
02 Days
3
State Stormwater Management Systems
Permit No. SWS 010314 Modification
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in it's entirety, vegetated and operational for its intended
use prior to the construction of any built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired
immediately.
3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater
system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its
entirety and maintenance must occur at the scheduled intervals including, but not limited to:
a. Semiannual scheduled inspections (ever), 6 months).
b. Sediment removal.
C. Mowing and revegetation of side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of catch basins and piping.
4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ.
The records will indicate the date, activity, name of person performing the work and what actions were taken.
5. 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 ofthis 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.
7. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to
operation as a stormwater treatment device, and prior to occupancy of the facility.
8. A modification must be permitted prior to any construction. The following items will require a modification to the
permit. The Director may determine that other revisions to the project should require a modification to the permit:
a. Any revision to the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area.
C. Further subdivision, acquisition, or sale of the project area. The project area is defined as all property owned
by the permittee, for which Sedimentation and Erosion Control Plan approval was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan.
9. 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.
10. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved
plans, prior to construction. If the proposed BUA exceeds the pemitted amount, a modification to the permit must
be submitted and approved prior to construction.
0
State Stornmater Mana_ement Systems
Permit No. SWS 010314 Modification
11. The permittee shall submit final site layout and grading plans for any pennitted future areas shown on the
approved plans, prior to construction. If the proposed BUA exceeds the pemitted amount; a modification
to the permit must be submitted and approved prior to construction.
12. Prior to the sale of any portion of the property, an access/maintenance easement to the stormwater facilities
shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale
of any portion of the property.
13. The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable
built -upon area.
14. The Director may notify the permittee when the permitted site does not meet one or more of the minimum
requirements of the permit. Within the time frame specified in the notice, the pennnittee 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.
15. The permittee shall notify the Division of any name, ownership or mailing address changes within 30 days.
III. GENERAL CONDITIONS
This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there
is a name change of the Permittee, a formal permit request must be submitted to the Division of Water
Quality accompanied by an application fee, documentation from the parties involved, and other supporting
materials as may be appropriate. The approval of this request will be considered on its merits and may or
may not be approved.
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.
3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules,
regulations, or ordinances which may be imposed by other government agencies (local, state, and federal)
which have jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the
Permittee shall take immediate corrective action, including those as may be required by this Division, such
as the construction of additional or replacement stormwater management systems.
5. The permittee grants DENR Staff permission to enter the property 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.
Permit issued this the 1 Oth day of August, 2001.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
C A�A A-, �
Gregory J. Thorpe, Ph.D., Acting Director
Division of Water Quality
By Authority of the Environmental Management Commission
State Stormwater Manaeement Systems
Permit No. SW8 0 103 14 Modification
Carolina Eye Associates
Stormwater Permit No. SW8 010314 Modification
New Hanover County
Designer's Certification
1, , as a duly registered in
the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of
the project,
ect)
for (Project Owner) hereby state that, to the best ofmy abilities, due care
and diligence was used in the observation of the project construction such that the construction was observed to be
built within substantial compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
SEAL
Signature
Registration Number
Date
A&K #00235
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
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Carolina Eye Associates
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Robert G. Martin / President
3. Mailing Address for person listed in item 2 above:
2170 Midland Road
City: £
Telephone
State: NC Zip: 28387
4. Project Name (subdivision; facility, or establishment name — should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
Carolina Eye Associates
5. Location of Project (street address):
east corner of 17th Street and Jumpin Run
6. Directions to project (from nearest major intersection):
North on 17'h Street from intersection of Glen Meade & 17"' Street located at corner of 17'h &
Jumpin Run.
7. Latitude: 341 12' 38" Longitude: 770 55' 28" of project
8. . Contact person who can answer questions about the project:
Name: Harvey Hoopes . Telephone Number: (910) 692-5125
I1. PERMIT INFORMATION
I. Specify whether project is (check one):.. New Renewal X Modification
Form SWU-101 Version 3.99 Page 1 of 4
2. If this application is being submitted as the result of a ienewal or modification to an existing permit, list the
Existing permit number SW8 010314 And its issue date (if known)'' July 23, 2001
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 r_ 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.
Infiltration Basin
2. Stormwater runoff from this project drains to the Cape Fear River Basin
3. Total Project Area: 1.35 : - .4. Project Built. Upon Area: 41.24
5. How many drainage areas does the project have? 1
6. Complete the following information for each drainage area. 'If there aie 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.
"Basiflnfoemationr" r I' Draina eArea"1 .i. i • 'Drama eJAiea'2: ,"''' "
Receiving Stream Name Jum in Run „ ..
Receivin 'Stream Class C-SW
Drainage Area " " 1.94 acres
Existing Impervious * Area
Proposed Impervious* Area 0.80 acres
%Impervious* Area total 41.24 r
vn-sae auuain s i 1,0VU si
On -site Streets 19,100 sf
On -site Parking I
On -site Sidewalks), , .r ;; 4,447 sf
Other on -site —
Off -site --
Total: 34,937 sf Total:
* Impervious area is defined as the built upon area inchuhnz but not, limited to, buildings, roads, parkinx areas
sidewalks, gravel areas, etc.
Form SWU-101 Version 3.99 Page 2 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 SW8 010314 And its issue date (if known) July 23, 2001
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.
Infiltration Basin
2. Stormwater runoff from this project drains to the Cape Fear
3. Total Project Area:
River Basin.
1.35 . 4. Project Built Upon Area: 41.24 %
5. How many drainage areas 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.
_DBasininformatiod{ ea'2Aa
Rec eiving Stream Name Jum in Run
Receiving Stream Class C-SW
Drainage Area 1.94 acres
Existing Impervious * Area
Proposed Impervious* Area 0.80 acres
%I ervious* Area (total) 41.24
Im ervious* Surface Area ..i Draina a Area 1; Draina a Area'2
On -site Buildings 11,390 sf
On -site Streets 19,100 sf
On -site Parking t
On -site Sidewalks 4,447 sf
Other on -site -----
Off-site
Total: 34,937 sf Total:
* Impervious area it 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
How was the off -site impervious area listed above derived?
N/A
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. 7he.se covenants may
not be changed or deleted without the consent of the State.
2. No more than .square feel of any lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include
wood decking or the water surface ofswimming pools.
3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossings.
4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification
prior to construction.
5. All permitled runofffrom outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the storm water 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 (919) 733-5083 for
the status and availability of these forms.
Form SWU-102
Form SWU-103
Form SWU-104
Form SWU-105
Form SWU-106
Form SWU-107
Form SWU-108
Form SWU-109
Wet Detention Basin Supplement
Infiltration Basin Supplement
Low Density Supplement
Curb Outlet System Supplement
Off -Site System Supplement
Underground Infiltration Trench Supplement
Neuse River Basin Supplement
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.
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
• 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 & 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
- 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.
John S. Tunstall. P. E.
Designated agent (individual or firm): Andrew & Kuske Consulting Engineers, Inc.
Mailing Address
City:
Phone:
902 Market Street
343-9653
Vill. APPLICANT'S CERTIFICATION
State:.. NC ,Zip: 28401
Fax: (910). 343-9604
1, (print or type name of person listed in General Information, item 2) Robert G. Martin
Certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the.required deed restrictions and
protective covenants will be recorded, and that the proposed project complies with the requirements of 15A NCAC
Date: -3— (— 01
Form SWU-101 Version 3.99 Page 4 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.
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 & 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
- 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.
John S. Tunstall. P. E.
Designated agent (individual or firm): Andrew & Kuske Consulting Engineers Inc.
Mailing Address: 902 Market Street
City
Wilmington
State: NC Zip: 28401
Phone:
(910)
343-9653
Fax: (910) 343-9604
VIII. APPLICANT'S CERTIFICATION
1, (print or type name of person listed in General Information, item 2) Robert G. Martin
Certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions and
protective covenants will be recorded, and that the proposed project complies with the requirements of 15A NCAC
114 1 nnn
Date:
Form SWU-101 Version 3.99 Page 4 of 4
Andrew & Kuske
CONSULTING ENGINEERS, INC.
902 Market St. • Wilmington, North Carolina 28401-4733 • Telephone 9
John R. Andrew, P.E.
J. A. Kuske, P.E.
J. Phillip Norris, P.E.
com
i
� `G
August 6, 2001 �\ \ � I Ao
Mr. Rick Shriver
NC DENR to 1
Division of Water Quality
127 Cardinal Drive Extension �-�t �1 vQ
Wilmington, INC 28405-3845 RE/ CEI 0'�T ED
Re: Carolina Eye 'L
Stormwater Permit Modification AuG 0 6 2001
SW8 010314 DWQ
A&K No. 00235
PROJ #
Dear Mr. Shriver:
Please find attached the revised plans, calculations, revised application form SWU-101
(pages 1 and 2), Infiltration Basin Supplement form SWU-103, revised narrative and a
$420.00 check for the modification fee for the above referenced project. Due to
NCDCT denying the stormwater outfall down 171h Street, the site has been redesigned
with an infiltration basin. Vincent Lewis visited the site in 8/3/01 and approved the site
for an infiltration basin design. The project was originally permitted under SW8 010314
on July 23, 2001.
Please review this information for approval and contact us with any questions or
comments you may have. Thank you for your assistance on this project.
Sincerely,
ANDREW & KUSKE
CONSULTING ENGINEERS, INC.
Z A . 6y�
John S. Tunstall, P. E.
JST/cif
Enclosures
EROSION CONTROL / STORMWATER SYSTEM NARRATIVE
CAROLINA EYE ASSOCIATES
WILMINGTON, NORTH CAROLINA
For
MTMM Associates
2170 Midland Road
Southern Pines, NC 28387
C:A
CAR,
SSrn:'`$
SEAL ' l!!
19851
�uTO"r.
March, 2001
Prepared by:
ANDREW & KUSKE CONSULTING ENGINEERS, INC.
902 Market Street
Wilmington, North Carolina 28401
(910) 343-9653
(910) 343-9604 — Fax
www.andrewandkuske.com
NARRATIVE
DESCRIPTION
The project site is a 1.35 acre tract located on the corner of 17`h Street and
Jumpin Run Drive in Wilmington, NC. The site consists of moderately wooded/sandy
soils and grades ranging from 1% to 10%. Approximately 1.35 acres will be graded to
allow construction of a new office building with paved parking and paved access. The
runoff from the site is estimated using the rational method 10 year design storm and
rainfall data for the area. Construction is scheduled to begin as soon as all permits and
approvals are obtained.
The project consists of a10,000 sf office building with associated parking facility.
Approximately 1.35 acres will be disturbed and 0.80 acres will be covered by
impervious surfaces.
EROSION CONTROL MEASURES
The attached plans and specifications give the requirements for erosion control
measures. Silt fencing will be provided where stormwater would be expected to sheet
flow from disturbed areas directly to adjacent property. Gravel check dams will not be
provided unless the Contractor has to temporarily discharge into an open ditch instead
of the proposed storm drain outfall. A gravel construction entrance will be constructed
at the entrance off 171h Street. Maintenance will be provided by the grading contractor
and developer.
2
STORMWATER MANAGEMENT MEASURES:
The project site is located in New Hanover County. Land disturbing on the site
will exceed one acre which requires the site to comply with the City and State
Regulations. The stormwater runoff from the development will be directed to the on site
stormwater infiltration basin. The infiltration basin is a natural area on site and
according to the infiltration test by SoilTech the sands have an infiltration rate of 30" per
hour. The infiltration basin is located at the northwest portion of the site. The basin is
designed in accordance with State guidelines and will store and infiltrate the 100 year
storm event. The proposed infiltration basin will be cleared of all underbrush and the
existing large trees will remain. The basin will be supplemented with bio-retention type
plants in accordance with the State's BMP for bio-retention areas..
CONSTRUCTION SEQUENCE
The Contractor will install the gravel construction entrance and silt fence prior to
beginning any clearing and grading operations. Additional silt fence will be installed
when and if conditions warrant during construction. During construction, the contractor
shall clean low areas of any sediment or debris. Disturbed areas will be landscaped or
seeded upon completion.
c
MAINTENANCE PLAN
1. All erosion and sediment control practices will be checked for stability and operation
following every runoff -producing rainfall but in no case less than once every week.
Any needed repairs will be made immediately to maintain all practices as designed.
2. Sediment will be removed from the gravel inlet protection device when storage
capacity has been approximately 50% filled. Gravel will be cleaned or replaced
when the sediment pool no longer drains properly.
3. Sediment will be removed from behind the sediment fence when it becomes about
0.5 ft deep at the fence. The sediment fence will be repaired as necessary to
maintain a barrier.
4. Check ditches, swales, and other seeded areas for erosion and sedimentation after
runoff producing rains. All seeded areas will be fertilized, reseeded as necessary
and mulched according to specifications in the vegetative plan to maintain a
vigorous, dense vegetative cover. Sediment producing areas should be treated
immediately.
5. Inspect gravel construction roads, entrances, and parking areas periodically for
sediment build-up on surface. Topdress with new gravel as needed.
E
Date Design Andrew and Kuske Sheet
902 Market St. CONSULTING ENGINEERS, INC. Wilmington, IN . 28401 Of
Check Job For Job No.
61.4" CAM
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�I2MInl47tjZ_ CALC-uLATwc,
SEAL `
19851 %I0 I
,41e� # 002-35
Date I Design Andrew and Kuske Sheet
902 Market St. CONSULTING ENGINEERS, INC. Wilmington, N.C. 29401 / Of
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Data for CAROL INA EVE ASSOC. Icyc-s mm Pane_ 7
FVPP TIT ?A_urniR RAINFALL= 7.00 IN
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ROUTE INVERT OUTLET DEVICES
1 P 27nr EXFILTRATION -
V= .0417 FPM over (SURFACE .AREA. - 2850 SF)
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Data fcr CAROLINA EYE ASSOC.
TYPE III 24-HOUR RAINFALL= 8.00 IN
Precared by ANDREW 5 KUSKE CONSULTING ENGINEERS
vdroCAD 5.01 000479 f_\ 198E-1998 A fill d Mi
Uv 1 Vv _, iy hU; Ce" Systems
SURC TCHMENT 1 CAROLINA EYE
JUUy/Y 1 y
PEAK_ 9.14 CFS @ 12 Ern MRS. VOLUME- nc AF
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.44 98 ASPHALT
.0 98 CONC. WALK
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.74 40 OFFSTTE NORTH
1.94 55
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TYPE III 24-HOUR
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DIRECT ENTRY DRAINAGE AREA. 5.0
Data for CAROLINA EYE ASSOC. Page ;
TYPE III 24-HOUR RAINFALL= 8.00 IN
Preoared by ANDREW & KUSKE CONSULTING ENGINEERS 6 Aua 01
HydroCAO 5.01 000479 (c) 1986-1998 Aoolied Micrncamout.er Svstems
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HRS.
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ATTEN= 65%. LAG=
17.8 MTN
ELEVATION
AREA
INC.STOR
CUM.STOR
STOR-IND METHOD
(FT)
(SF)
(CF1
(CF)
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CF
27.0
2850
0
0
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FT
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7000
4925
4925
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FT
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8950
7975
12900
START ELEVATION=
27.0
FT
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dt=,02
HRS
Tdet= 29.4 MIN (.44
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ROUTE INVERT OUTLET DEVICES
1 P 27.0' EXFILTRATION
V= .0417 FPM over (SURFACE AREA - 2850 SF),
Data for CAROL INA EYE ASSOC. ANvSibmv.-t Pane 4
TYPE M 24—HOUR RAINFALL= 9.00 IN
Preoared by ANDRFW R KL-L$KF CONSULTING ENGINEERS 95 jul 01
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Data for CARO iNA EYE ASSOC.
TYPE 1i1 24-HOUR RAINFALk Q_QQ iN
Prepared by ANDREW A KISKE CONSULTING ENGINEERS
HyrlrofA[1 5.01 000479 Ir) 1986-1998 Annlied Mirrornmouter Systems
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@ 12.07 HRS.
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_ 1 Q
QA
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40
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75 lul 01
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nata fnr CARQITNA FYF Assoc
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Data for CAROLINA F_YF ASSOC
TYPE !!! 24-H UR RAINFAL L_=11 @O IN
Prepared by ANORFW R KUSKF CONSULTING ENGINEERS
HydrnCAD 5.01 000479 /r) 1985_199R Annlied Mirrorommrter Systems
SLLRfATC00T 1 CAROL TNA EYE
PEAK= 15.13 CFS @ 12.06 HRS, VOLUME_ .75 AF
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10 O QA CONC. WALK
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_74 dQ OFFSITE NORTH
1_QA 55
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SCS TR-20 METHOD
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Method Comment Tr /min)
DIRECT ENTRY DRAINAGE AREA 5 n
Data fnr CARnI TNA FVF ASSnr_
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on, t= a.2n rF$ (d 12.a9 NPS, VQI tTMF= 7� A.F
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FI nnn FI FVATTQN. 9Q_n FT
STAPT FI_FVATTQN. 27_n FT
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2592 HOPE MILLS ROAD
FAYETTEVILLE, NC 28306
ENGINEERING INC. 910-426-2323
Miller Building Corporation
Post Office Box 2046
Wilmington, North Carolina 28402
Attention: Mr. Dick Hurst
Reference: Infiltration Evaluation
Carolina Eye Associates
Wilmington, North Carolina
Job No: 3528 - 01
Dear Mr. Hurst:
JUL 2 0 2001
ANDREW AND KUSKE
July 18, 2001
Soil Tech Engineering, Inc. has recently conducted an evaluation of the existing site
conditions for the development of the Carolina Eye Associates building and parking
areas located on 17th Street in Wilmington, North Carolina.
We conducted an investigation of the subsurface soils at the designated storm water
infiltration pond indicated on the attached site sketch on July 16, 2001. The purpose of
our investigation was to determine the suitability of the in -place soils for the discharge
of stormwater runoff. We investigated the subsurface soils to a depth of six feet below
the existing ground surface. We also classed each subsurface strata encountered
by depth and obtained representative soils samples of each strata at the designated
locations.
Selected soil samples were tested in our laboratory for grain size structure in
accordance with the American Society for Testing and Materials (ASTM) procedures
entitled ASTM D-422; 'Particle Size Analysis of Soils". Our sampling indicated that the
subsurface soils at the test location to be moderately drainable upper stratas of Dark
Gray Silty fine grained sands underlain by a strata of Tan Brown relatively free draining
sands.
l
Infiltration Evaluation
Carolina Eye Associates
Wilmington, North Carolina
Page Two
We also conducted an evaluation of the subsurface infiltration at the designated
location. The infiltration rate of the in -place soils were determined at a depth of
approximately 42 inches below the existing ground surface at the location investigated.
The infiltration rate was found to be 0.5 inches per minute, based on our analysis.
We encountered groundwater at the location investigated at approximately 4.5 feet
below the existing ground surface and in our opinion, the seasonal high groundwater
condition should range from 4 to 4.5 feet below the existing ground surface. The
infiltration rate presented above reflects the anticipated downward movement of
infiltration water but does not reflect any lateral movement. We would anticipate that
stormwater will collect in this pond after significant rainfall due to infiltration mounding
because of a relatively high groundwater condition.
Please find the results of our field and laboratory tests and a sketch indicating the
location checked. If you have any questions after reviewing this report, please do not
hesitate to contact us.
Very truly yours,
SOIL TECH ENGINEERING, INC.
A.�
Parks A. Downing, Jr.
Manager
w
JapCs Pate, P.E.
CC: Andrew - Kuske
PADjr:JP/ad
enclosure
;t%pRTH
�••QOFE s. O
C. PATS
Infiltration Evaluation
Carolina Eye Associates
Wilmington, North Carolina
Job No.: 3528 - 01
Date : July 19, 2001
Location De t(thh
#1 0-3"
3" - 30"
30" - 42"
42" - 72"
Organics
Gray Silty Fine to Medium SAND
Brown Silty ine to Medium SAND
Tan Brown Silty Fine to Medium SAND
Groundwater was encountered at 54" below the existing ground surface.
Infiltration Rate : 0.5 inches per minute
Test was conducted at 42 inches below the existing around surface.
ReCention
Pond
17th
Street
Jurpin Run Wive
® Denotes Icution of infiltration Cestin�.
�— Building Site
F, MC31"'t, Al.t.
Carolina Eye Associates
Wilmington, North Carolina
Job No.: 3528 - 01
Grain Size Analysis
Carolina Eye Associates
Wilmington, North Carolina
Job No.: 3528 - 01
Location :
#1
#1
30" - 42"
42" - 72"
Sieve Size
# 10
100.0
99.8
# 40
85.7
90.4
# 80
39.5
39.0
# 200
15.8
15.7
Percent Moisture :
18.4%
21.4%
Soil Description :
Brown
Tan
Silty
Brown
Fine to
Silty
Medium
Fine to
SAND
Medium
SAND
Andrew & Kuske
CONSULTING ENGINEERS, INC.
John R. Andrew, P.E.
J. A. Kuske, P.E.
J. Phillip Norris, P.E.
902 Market St. • Wilmington, North Carolina 28401-4733 • Telephone 910/343-9653 • Fax 910/343-9604 • wvvw.andrewandkuske.com
May 14, 2001
Ms. Linda Lewis
NCDENR/Div. of Environmental Mgmt.
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Re: Carolina Eye
A&K No. 00235
Dear Ms. Lewis:
MAY 1 5 2001
Please find the following responses to your comment letter of May 8, 2001:
1. The nearest major intersection is now shown on the vicinity map.
2. Please find a plan of the highlighting offsite drainage area.
3. The offsite drainage area listed in the calculations is shown on the attached plan.
This area contains a previously permitted employee stone parking lot for Wilmington
Orthopedic Group permitted under SW 8960807. We originally believed the
Wilmington Orthopedic pervious parking lot was outside of the recently subdivided
Carolina Eye Associates tract; however, by physically locating the parking lot, it
appears that this parking lot slightly infringes into the recently subdivided Carolina
Eye Associates site. The permitted stormwater devices for this parking lot is an
infiltration system. Subsequently, we will now modify the permit of the pervious
parking lot of Wilmington Orthopedic Group SW 8960807. The pervious employee
parking lot and infiltration system will be moved back on the now Wilmington
Orthopedic Group site. Any additional development of the Wilmington Orthopedic
site will be required to be permitted.
4. The requested roof drainage note is shown on Sheet C1 note #2.
5. Wetland plants were specified in a note on the pond detail on Sheet C4. These
plants were specified by a landscape architect.
6. Please find a clear copy of the calculations.
Ms. Linda Lewis
May 14, 2001
Page 2
7. The surface area at elevation 28.45 was generated by interpolating between the
computer generated surface area of elevation 28 and elevation 29. The surface
area at elevation 28.45 is 4,224 sf.(3.475 + 4224 (0.95) = 3,657 ft31.The storage has
l 2 J
been revised to 3,657 ft3 on the calculations and the permit application supplement
form.
8. Built upon area has been revised to 34,937 sf on the permit application.
9. Building dimensions as well as the ponds normal pool dimensions are shown on
Sheet C2.
If you should have any further questions or comments on this project, please do not
hesitate to contact our office.
Sincerely,
ANDREW & KUSKE
CONSULTING ENGINEERS, INC.
John S. Tunstall, P.E.
JST/cjf
Enclosure
CC: David Honeycutt / Miller Building
00235-05-14-01 ftr
Wth Carolina
artment of Environment and Natural Resources
Division ofWater Quality
Wilmington Regional Office
Michael F. Easley, Governor
William G. Ross, Jr., Sceretary
May 8, 2001
Mr. Robert G. Martin, President
Carolina eve Associates
2170 Midland Road
Southern Pines, NC 28387
Subject: REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 010314
Carolina eve Associates 17th Street Office
New Hanover County
Dear Mr. Martin:
The Wilmington Regional Office received a Stormwater Management Permit Application for Carolina
eye Associates 17th Street Office on March 14, 2001. A preliminary review of that information has determined
that the application is not complete. The following information is needed to continue the stormwater review:
1 Please show the nearest MAJOR intersection (i.e., NC Highway, US Highway, Interstate, etc.)
on the vicinity map.
2. Please provide a map of the offsite drainage area.
3. The application indicates that there is no offsite drainage, even though it is accounted for in the
calculations. The rules require you to either account for offsite drainage at it's full build -out
potential, or reroute it. Please revise. leercm+ e
�4. Please add a note that all roof drains must be directed such that they will drain to the permitted
SW control system, or show the roof drainage collection system on the plans.
✓ 5. Please specify the wetland plants to be planted on the vegetated shelf. A list can be found in
Chapter 2 of the BMP document. There is no requirement through D WQ for a minimum number
of plants, or spacing, however, .you can consult a landscape architect or the Extension Service
for details on that.
J6. The handwritten calculation sheet is faded and unreadable in places. Please provide a clear copy.
✓ 7. Flow did you determine that 3,752 It' of storage has been provided at elevation 28.45? What is
the surface area in the pond at 28.45?
8. The built -upon area listed on the application totals 34,937, not 39.937. Please revise.
9. Please provide dimensions for the building and the permanent pool contour.
127 Cardinal Dr. Ext., WilminVoti, North Carolina 28405 Telephone 910-395-3900 FAX 9111-350-2004
An Equal Opportuniq, Affirmative Action Employer 50 % recycled/101% post -consumer paper
Mr. Martin
May 8, 2001
Stortnwater Project No. SW8 010314
Please note that this request for additional
requested information should be received by this
returned as incomplete. The return of project will
application fee.
information is in response to a preliminary review. The
Office prior to .tune 8, 2001, or the application will be
necessitate resubmittal of all required items, including the
If you need additional time to submit the information, please mail or fax your request for a time
extension to the Division at the address and fax number at the bottom of this letter. The request must indicate
the date by which you expect to submit the required information. The Division is allowed 90 days from the
receipt of a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an approved
Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action
pursuant to NCGS 143-215.6A.
Please reference the State assigned project number on all correspondence. Any original documents that
need to be revised have been sent to the engineer or agent. All original documents must be returned or new
originals must be provided. Copies are not acceptable. If you have any questions concerning this matter please
feel free to call me at (910) 395-3900.
Sincerely,
L�LGI/ Gx��"y
Linda Lewis
Environmental Engineer
RSS/arl: S:\WQS\STORMWAT\ADDINFO\010314.MAY
cc: Linda Lewis
John Tunstall. P.E.