HomeMy WebLinkAbout20080964 Ver 1_More Info Received_20080903a, e
5EGI
Southern Environmental Group, Inc.
5315 South College Road, Suite E
Wilmington, North Carolina 28412
910.452.2711 (office) • 910.452.2899 (fax)
SEGi Project #: 06-178.01
Client Name: Holy Cross Episcopalian
DWQ Project #: 08-0964
Transmittal Letter
j?
Date: 02 September 2008 10:
To: Mr. Ian McMillan S L P 2008
Of: 401 Oversight / Express Review Permitting Unit DLNk .. VWI E?Z QLJ,ki rv
vlETIAI'DS AND STc)Rwt. 4TER BP."C' i
Attached you will find:*
? Proposal ? Sketch(es) ? Permit ? Signed Wetland Map ? Photo(s)
? JD Package ? Report(s) ? Plans ? Information Request ® Other
Copies Dated Description
1 26 Aug 2008 Response letter addressing avoidance and minimization
1 08 July 2008 Approved stormwater permit
These are being delivered:
*If noted items are NOT attached, please contact our office.
® For your Review/Comment ? For your Records ? Returned for Correction(s)
? Corrected and Returned ? For your Signature ? As Requested
? Other:
By: ? Hand Delivery ? Fed-Ex ? UPS ® Regular Mail ? Other
Notes:
Ian:
Attached is a response letter SEGi sent to Chad Coburn, pertaining to the Holy Cross Episcopalian isolated wetland fill request (DWQ
Project #: 08-0964). Please review the attached documentation, and ifyou have any questions or concerns, feel free to contact my office
at 910.452.2711. Thank you in advance for your consideration with this project.
Signature and (Typed) Name: I(O-CL0__
Amanda L. Kolb
Date: 02 September 2008
50utkern Environmental C3roup, Inc.
5515 South College Road, Suite E- - Wilmington, North Carolina 28+12
910.-+52-2711 • rax: 9 i o.452.2899
www.segi.us
August 26, 2008
E-Mail
Chad Coburn
Re: Isolated Wetland Permit for Holy Cross Church
Dear Mr. Coburn:
This letter is in reference to your request to explain avoidance and minimization on the proposed
project.
To start on a "side note," I was given an approved stormwater plan for the original plan
submitted to DWQ for the Isolated Wetland Fill Permit. The stormwater plan, attached, is dated
7/8/2008.
What I would like to work out with stormwater and 401 is seeing if we can get together to get a
single process to work out the issues. Meaning, I don't want for stormwater to get approved with
401 review, but then the 401 review ends up requesting information prior to approval. Changes
in the 401 permit application likely will require changes to the already-approved stormwater
plan. This increases time and cost to the client/citizen while making it look like none of us
(consultants & state personnel) have it "together."
In this case, 401 is now requesting information that could have been obtained during the
stormwater application process. Since my client has an approved stormwater plan, they want to
get a wetland permit to implement the stormwater plan. It seems to me that DWQ has indirectly
approved the 401 permit since 401 has reviewed the stormwtaer application and did not request
any additional information at that time or in that application process. The DWQ should know
that the client will be applying for a 401 permit based on the plans and information submitted in
the stormwater application.
By approving a plan that requires the full wetland fill of 41,857.37 square feet without any
comment or additional requests, it seems to me that tacit approval of the required 401 would also
be included in that approval. Else, how can the Church build the stormwater plan as approved?
holy Cross: Practical6e Project [2/8]
sr-6I
While that issue (stormwater and 401) is not likely to be resolved in the short term, I think the
project's overall purpose would be frustrated if the requested fill is not permitted-especially
now when the proposed wetland impacts only total 21,771 square feet.
The church is not proposing to impact wetlands along the northern property boundary, and has,
through this avoidance, minimized impacts to the site in light of the overall project purpose.
Holy Cross is hoping to provide a full set of religious and community services and a location for
the congregation and the community to worship, meet, and recreate. The church's purpose is to
develop property to service the Church's purpose of housing their structures of worship (main
buildings, classrooms, etc.), providing parking required by county regulations, and providing for
use of open space on their property for church and community functions which include but are
not limited to Easter Sunday worship services, other church services (Easter Egg hunts, picnics,
fund raisers, etc.), recreational facilities for the church and churchgoers (soccer, kickball, picnics,
etc.), and services and activities for youth ministry events/activities.
Proposing a site with a total area of 4.92 acres and retaining a wetland, just shy of a 1/10'x' of an
acre, appears to be in line with other churches in the area when considering the overall project
purpose. Since the review of the wetlands on-site, the proposed impacts to isolated wetlands
totals 21,771 square feet, or 0.49979 acre, of wetland fill.
The Division of Water Quality asks the public to determine if their project has planned for
avoidance (Has the project been designed to avoid impacts to wetlands, streams and other natural
resources to the extent practicable?) and minimization (Where project impacts are unavoidable,
is the project designed such that the impacts have been minimized to the extent practicable?) of
wetland impacts. Both "avoidance" and "minimization" are considered "to the extent
practicable."
Section 404(b)(1) Guidelines define a "practicable" as what "is available and capable of being
done after taking into consideration cost, existing technology, and logistics in light of overall
project purposes." In this case, "overall project purpose" is defined as providing all of the
services a church normally provides to its members including structures for worship, education,
and gatherings and, in addition, to provide for outside activities including, but not limited to,
outdoor worship services (e.g., Easter Sunday), recreational religious activities (e.g., Easter egg
hunts,sports leagues such as Halo Hoops, playgrounds, picnics, and other youth ministry events).
Noiy Cross: rractica& Froject [518]
SEGO
I don't know of a many churches that do not have significant area (e.g., lawn or other upland
area) for use by the church and its members. Please let me know why the DWQ thinks that the
Church's proposed impacts, when looked at in light of the overall project purpose, are
"unreasonable" or not practicable.
The Churches in the area include:
1. Myrtle Grove Presbyterian Church is located at 800 Piner Road and has over 15 acres of
area, including large grassed areas adjacent to and behind the Church;
Holy Cross: Practicalbe Project [9-/81
5E-6i
2. Myrtle Grove Baptist Church is located at 5524 Myrtle Grove Road and has 4.25 acres of
area, including a large grassed area adjacent to and behind the Church;
3. United Advent Christian Church is located at 4912 S. College Road and has 5.42 acres of
upland
area and a large grassed area adjacent to and north of the church;
HoI.9 Cross: Practicalbe Project [5181 5 E-6'
4. Vineyard Community Church is located at 4702 S. College Road and has 12.24 acres of
upland, and a large grassed area adjacent to and north of the church;
holy Cross: Practical6e Project [618)
SEG
5. The future site of Water of Life Lutheran Church is located at 480 Golden Road and has
5.4 acres:
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ii
01b N,
A 10
421
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Pik ? i ?' a ???? r ? ... •Yt
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6. The list could continue...
To summarize, similar churches provide for large areas to provide worship, gathering, and
recreational areas for their congregation and the community. Most churches in the area have
areas for outdoor and/or indoor recreation, and most churches use such areas as part of their
religious and non-religious community-oriented outreach programs (e.g., youth ministry, etc.).
hoI y Cross: Practicalbe Project [718]
SEGO
There may be churches that do not have or want such areas and, generally, do not provide the
overall scope of services for their congregation. Such a church appears to be the Federal Point
Pentacostal that is located at 629 Piner Road and is located on a very small lot (about 1 acre).
However, the Pentacostal church has position papers on organized sports (See
http://www.spiritualabuse.orp-/issues/position/sports.html) that states:
Adopted by the General Board and presented to the General Conference in the
form of a recommendation in 1984
Whereas the General Board has carefully and prayerfully considered the
matter of organized sports and the effects it could have upon our churches,
and
Whereas organized sports as the world knows it has an attitude and
appearance that oppose Pentecostal principles, teachings, and standards, and
Whereas we would be entering into an area that could adversely affect our
doctrine of separation, and
Whereas in the interest of preserving the beautiful things of holiness and
dedication given to us by prayerful, godly men who sacrificed and suffered
for the great cause we represent,
The General Board recommends that United Pentecostals refrain from
participating in organized sports. This recommendation is not to restrict
the local church in its recreational activities which offer good wholesome
exercise and Christian fellowship.
Due to this and other religious positions taken by Pentacostal churches in general, I do not think
the Pentacostal church should be used as a reasonable or practicable comparison to the Holy
Cross Church.
Hoiy Cross: Practical6e Project [8/8]
sr-6I
In summary, denying the proposed permit would deny Holy Cross the ability to provide the
services it seeks to provide and would frustrate and prevent the overall project purpose from
being realized, especially when similar churches in the area provide similar or significantly more
area for use by their congregation.
I think that 401 needs to look at the proposed project in light of the overall project purpose and
decide whether the impacts requested are practicable in light of the overall project purpose. If
the overall project purpose is practicable (and I think it is), DWQ, in my opinion, should issue
the permit to fill the 21,771 square feet (just shy of 0.50 acre) of low-quality isolated wetland
found on the subject parcels so the church can provide all of the services expected of this church
and all of the services proposed to be provided by this church.
Let me know how you want to proceed.
Sincerely,
James
Q?0? W A r?i4QG Michael E. Fiaslev, Governor
William G. Ross Jr., Secretary
r North Carolina Department of Environment and Natural Resources
J .1
Y Coleen H. Sullins Director
Division of Water Quality
July 8, 2008
Darrill Johnson, Senior Warden
Episcopal Diocese of East Carolina
Holy Cross Episcopal Church - Myrtle Grove
PO Box 15171
Wilmington, NC 28408
Subject: State Stormwater Permit No. SW8 080505
Holy Cross Episcopal Church - Myrtle Grove
High Density Commercial Wet Pond Project
New Hanover County
Dear Mr. Johnson:
The Wilmington Regional Office received a complete State Stormwater Management Permit
Application for Holy Cross Episcopal Church - Myrtle Grove on July 7, 2008. Staff review of
the plans and specifications has determined that the project, as proposed, will comply with the
Stormwater Regulations set forth in Session Law 2006-246 and Title 15A NCAC 2H.1000. We
are forwarding Permit No. SW8 080505 dated July 8, 2008 for the construction of the subject
project.
This permit shall be effective from the date of issuance until July 8, 2018, and shall be subject
to the conditions and limitations as specified therein. Please pay special attention to the
Operation and Maintenance requirements in this permit. Failure to establish an adequate
system for operation and maintenance of the stormwater management system will result in
future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have
the right to request an adjudicatory hearing upon written request within sixty (60) 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 eve Pusey, or me at (910) 796-7215.
Si er
el -
Edward Beck
Regional Supervisor
Surface Water Protection Section
ENB/ sgp: S:\WQS\STORMWATER\PERMIT\080505.ju108
cc: Brad Sedgwick, JBS Consulting, PA
New Hanover County Building Inspections
City of Wilmington Development Services
Beth E. Wetherill, New Hanover County Engineering
Steve Pusey
Wilmington Regional Office
Central Files
One
NorthCarolin:a
Alalural4il
North Carolina Division of Watcr Quality 127 Cardwal Drh c I-.xtension Wilmington, N('29405 Phone (910) 796-7215 Customer Semite
Wilmington Regional office Internet yw'u 11"%Va)eiyuali(y.oi Far {9101350-2004 1-877-623-0748
An Equai Opportunity/Affirmative Action Employer - 50% Recycled110% Post Consumer Paper
State Stormwater Management Systems
Permit No. SW8 080505
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
Darrill Johnson & the Episcopal Diocese of East Carolina
Holy Cross Episcopal Church
5820 Myrtle Grove Road, New Hanover County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with the
provisions of Session Law 2006-246 and 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 July 8, 2018, and shall be
subject to the following specified conditions and limitations:
1. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 56,852 square feet of
impervious area.
3. The tract will be limited to the amount of built-upon area indicated in Section 1.7
on page 3 of this permit, and per 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.
Page 2 of 7
State Stormwater Management Systems
Permit No. SW8 080505
6
7
The built-upon areas associated with this project shall be located at least 50 feet
landward of all perennial and intermittent surface waters.
The following design criteria have been provided in the wet detention pond and
must be maintained at design condition:
a
b
c.
d.
e.
f.
9.
j.
k.
M.
n.
o.
P.
q.
Drainage Area, acres:
Onsite, ft2:
Offsite, ft2:
Total Imperviou§ Surfaces, ft2:
Onsite, ft:
Offsite, ft2:
Design Storm, inches:
Average Pond Depth, feet:
TSS removal efficiency:
Permanent Pool Elevation, FMS6:
Permanent Pool Surface Are 91 ft
Permitted Storage Volume, ft :
Temporary Storage Elevation, FMSL
Predevelopment 1-yr, 24-hr, ft 3/§:
Post development 1-yr, 24-hr, ft /s:
Controlling Orifice:
Permitted Forebay Volume, ft3:
Fountain Horsepower, HP
Receiving Stream/River Basin:
Stream Index Number:
Classification of Water Body:
2.018
87,905
0
56,852
56,852
0
1.5"
4.5
90%
21.5
5,115
7,036 at temp. pool elev.
22.51
3.03
2.2
1.125"0 pipe
2,681
NA
Intracoastal Waterway / Cape Fear
18-87-(30.5)
"SA; HQW"
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built-upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall at all time provide the operation and maintenance necessary
to
approved Operation assure the permitted stormwater system functions at optimum efficiency. The
maintenance must occur at thee scheduled intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and re-vegetation of slopes and the vegetated filter strip.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of outlet structure, orifice device, level
spreader, filter strip, catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept for each permitted BMP. The
records will indicate the date, activity, name of person performing the work and
what actions were taken.
Page 3 of 7
State Stormwater Management Systems
Permit No. SW8 080505
5. The permittee shall submit to the Division of Water Quality an annual summary
report of the maintenance inspection records for each BMP. The report shall
summarize the inspection dates, results of the inspections, and the maintenance
work performed at each inspection.
6. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
7. Decorative spray fountains will not be allowed in the stormwater treatment
system.
8. The facilities shall be constructed as shown on the approved plans. This permit
shall become void unless the facilities are constructed in accordance with the
conditions of this permit, the approved plans and specifications, and other
supporting data.
9. 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.
10. 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.
11. 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
Mayor permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
12. The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit. Within the time frame
specified in the notice, the permittee shall submit a written time schedule to the
Director for modifying the site to meet minimum requirements. The permittee
shall provide copies of revised plans and certification in writing to the Director
that the changes have been made.
13. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
14. 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.
Page 4 of 7
State Stormwater Management Systems
Permit No. SW8 080505
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 completed Name/Ownership Change form, to the Division of Water
Quality, signed by both parties, and accompanied by supporting documentation
as listed on page 2 of the form. The project must be in good standing with the
Division. The approval of this request will be considered on its merits and may or
may not be approved.
2. The permittee is responsible for compliance with all permit conditions until such
time as the Division approves the transfer request.
3. 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.
4. 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.
5. 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.
6. 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.
7. The permit issued shall continue in force and effect until revoked or terminated.
The permit may be modified, revoked and reissued or terminated for cause. The
filing of a'request for a permit modification, revocation and re-issuance or
termination does not stay any permit condition.
8. 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.
9. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
10. The issuance of this permit does not prohibit the Director from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit
as allowed by the laws, rules and regulations contained in Session Law 2006-
246, Title 15A NCAC 21-1.1000, and NCGS 143-215.1 et.al.
11. The permittee shall notify the Division of any name, ownership or mailing address
changes at least 30 days prior to making such changes.
Permit issued this the.,&th day of July, 2008.
NORTHOLINA ENVIRONMENTAL MANAGEMENT COMMISSION
ror tuieen m. oulllns, director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 5 of 7
State Stormwater Management Systems
Permit No. SW8 080505
Holy Cross Episcopal Church - Myrtle Grove
Stormwater Permit No. SW8 080505
New Hanover 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:
SEAL
Signature
Registration Number
Date
Page 6 of 7
State Stormwater Management Systems
Permit No. SW8 080505
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built-upon area.
3. All the built-upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
,6. The outlet structure is located per the approved plans.
_7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
15. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
New Hanover County Building Inspections
Page 7 of 7
DWQ USE ONLY
Date Received Fee Paid Permit Number
p
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form inay he photocopied for use as an original
1. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Episcopal Diocese of East Carolina
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Darrill lohnson / Senior Warden
3. Mailing Address for person listed in item 2 above:
V::0' Fc7c 1St -71
City:Wilmington _ State:NC Zip28489 Z5405
Phone: 1910 ) 794-2176 Fax:
Email:
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Holy Cross Episcopal Church - Myrtle Grove Site
5. Location of Project (street address):
5820 Myrtle Grove Road
City:Wilmutgton County:New Hanover Zip:28409
6. Directions to project (from nearest major intersection):
From the intersection of Piner Road and Myrtle Grove Road take Myrtle Grove Road South to site
approximantly 0.42 miles the site is on the right
7. Latitude:3P° 07 34.3" N Longitude:77° 52' 48.4" W of project
8. Contact person who can answer questions about the project:
Name:Brad Sedgwick Telephone Number: (910 ) 619-9990
Email:bradsedgwick®hotmail.com ---
11. PERMIT INFORMATION:
1. Specify whether project is (check one): ®New Renewal ?Modification
Form SWU-101 Version 02.19.08 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 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):
QCAMA Major ®Sedimentation/ Erosion Control 404/401 Permit QNPDES Stormwater
III. PROJEC'T' INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwa ter management for the project.
A wet detention pond will provide treatment for the proposed development.
2. Stormwater runoff from this project drains to the Capefear River basin.
3. Total Property Area: 4.9 acres 4. Total Wetlands Area: 1.10 acres
5. 100' Wide Strip of Wetland Area: acres (not applicable if no wetlands exist on site)
6. Total Project Area" *:4.9 acres 7. Project Built Upon Area:26.64 %
8. How many drainage areas does the project have?4
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, complete the table with one drainaop area fnr Parh sanoino aA a+nrm..,?+o. A--
Basin Information Drainage Area 1 Drainage Area 2
Receiving Stream Name Intracoastal Waterway
Stream Class & Index No. SA;HQW 18-87-(30.5)
Total Drainage Area (sf) 87904.54
On-site Drainage Area (sf) 87904,54
Off-site Drainage Area (so
Existing Impervious Area (sf) 1750
Proposed Impervious*Area (so 55102
% Impervious* Area (total) 56852
Impervious* Surface Area Drainage Area 1 Drainage Area 2
On-site Buildings (sf) 11450
On-site Streets (sf)
On-site Parking (sf) 40957
On-site Sidewalks (so 2695
Other on-site (so 1750
Off-site (sf)
Total (so: 56852
Impervious areas defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
"Total project area shall be calculated based on the current policy regarding inclusion of wetlands in the built upon area
percentage calculation. This is the area used to calculate percent project built upon area (BUA).
Form S WU-101 Version 02.19.08 Page 2 of 4
10. How was the off-site impervious area listed above derived?
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
One of the following deed restrictions and protective covenants are required to be recorded for all subdivisions,
outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot
number, size and the allowable built-upon area for each lot must be provided as an attachment. Forms can be
downloaded from http://h2o.enr.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.
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
Fonn SWU-101 Version 02.19.08 Page 3 of 4
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Office. (Appropriate office may be found by locating project on the
interactive online map at http:/Jh2o.cr r._,s1a(c.nc.us/su/msi maps.hun)
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
• Original and one copy of the Stormwater Management Permit Application Form
• Original and one copy of the Deed Restrictions & Protective Covenants Form (if
required as per Part IV above)
• Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP
• Permit application processing fee of $505 ($4,000 for Express) payable to NCDENR
• Calculations & detailed narrative description of stormwater treatment/ management
• Copy of any applicable soils report
• Two copies of plans and specifications (sealed, signed & dated), including:
- Development/Project name
- Engineer and firm
-Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/ project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off-site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
VII. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section. (ex. designing engineer or firm)
Designated agent (individual or firm):IBS Consulting PA
Mailing Address:7332 Cotesworth Drive
City: W?ton State:NC Zip:28405
Phone: (910 ) 619-9990
Email:bradsedgwick6hotmail com
VIII. APPLICANT'S CERTIFICATION
Fax: (910 ) 401-1620
1, (print or type name of person listed in General Information, item 2) Darrill Johnson
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project twill be constructe , on ormance with the approved plans, that the required deed restrictions
and protective covepants will be > ,jded and that the proposed project complies with the requirements of 15A
NCAC 2H .100
7 ,
Signature: Date:
Form SWU-101 Version 02.19.08 Page 4 of 4
Permit No. 5 W l Ogg Sys
(to be provided by DWO)
WDEHR rn S f
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all of the required information.
I. PROJECT INFORMATION
Project name Holy Cross Episcopal Church - Myrtle Grove Site
Contact person Brad Sedgwick
Phone number (910) 619-9990
Date 5/112008 REVISED 7008
Drainage area number
Post A
II. DESIGN INFORMATION
Site Characteristics
Drainage area 87,904.54 ft
Impervious area 56,852.00 ft2
% impervious 64.67 %
Design rainfall depth 1.50 in
Storage Volume: Non-SR Waters
Minimum volume required 6,974.00 ft'
Volume provided 7,036.00 ft'
Storage Volume: SR Waters
24-hr runoff depth
1-yr in
,
Pre-development 1-yr, 24-hr runoff ft'
Post-development 1-yr, 24-hr runoff ft3
Minimum volume required ft3
Volume provided ft3
Peak Flow Calculations
1-yr, 24-hr rainfall depth 3.70 in
Rational C, pre-development 0.50 (unitless)
Rational C, post-development 0.75 (unitless)
Rainfall intensity: 1-yr, 24-hr storm 0.16 in/hr
Pre-development 1-yr, 24-hr peak flow 3.03 ft/sec
Post-development 1-yr, 24-hr peak flow 4.53 ft3/sec
Pre/Post 1-yr, 24-hr peak flow control 1.50 felsec
Basin Elevations
Basin bottom elevation 13.00 ft
Sediment cleanout elevation 14.00 it
Bottom of shelf elevation 21.00 ft
Permanent pool elevation 21.50 ft
SHWT elevation 22.00 it
Top of shelf elevation 22.00 ft
Temporary pool elevation 22.51 ft
Form SW401-Wet Detention Basin-Rev.4 Parts I. & 11. Design Summary. Page 1 of 2
Permit No. _'?W $ O S 0 505,
(to be provided by DWQ)
II. DESIGN INFORMATION
Volume and Surface Area Calculations
SAIDA ratio 5.15 (unitless)
Surface area at the bottom of shelf 2,654.00 ft2
Volume at the bottom of shelf 10,330.00 ft3
Permanent pool, surface area required 4,092.00 ft2
Permanent pool, surface area provided 5,115.00 ff2 OK
Permanent pool volume 12,272,00 113
Average depth for SAIDA tables _
1* ir ft Minimum of 3 ft required, Increase depth
Surface area at the top of shelf 7,486.00 ft2
Volume at the top of shelf 15 42200 ft3
Forebay volume 2,681.00 ft3
Forebay % of permanent pool volume 21.85 % OK
Temporary pod, surface area provided 7,753.00 fe
Drawdown Calculations
Treatment volume drawdown time 3.42 days OK
Treatment volume discharge rate 0.02 It%
Pre-development 1-yr, 24-hr discharge 3.03 ft3/s OK
Post-development 1-yr, 24-hr discharge 2.20 ft 3/s OK
Additional Information
Diameter of orifice 1.125 in
Design TSS removal 90 %
Basin side slopes 3.00 :1 OK
Vegetated shelf slope 10.00 :1 OK
Vegetated shelf width 10.00 ft OK
Length of flowpath to width ratio 3.00 :1 011%
Length to width ratio 3.00 :1 OK
Trash rack for overflow & orifice? y (Y or N) OK
Freeboard provided 1.82 it OK
Vegetated filter provided? n (Y or N) Design must be based on 90% TSS removal
Recorded drainage easement provided? y (Y or N) OK
Capures all runoff at ultimate build-out? Y (Y or N) OK
Drain mechanism for maintenance or emergencies v Pumc,
Form SW491-Wet Detention Basin-Rev.4 Parts I. & It. Design Summary, Page 2 of 2
Permit No ?L'?D??`? J
(to be provided by DWQ)
ill. 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. ff a
requirement has not been met, attach justification.
Pagel Plan
I ' 'al Sheet No.
__ G(, GZI 1
111?lt
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.
G i GZ 1 63 2. Partial Man (1" = 30' or larger) and details for the wet detention basin showing:
Outlet structure with trash rack or similar,
- Maintenance access,
- Permanent pool dimensions,
Forebay and main pond with hardened emergency spillway,
- Basin cross-section,
Vegetation specification for planting shelf, and
Filter strip.
3. Section view of the dry detention basin (1" = 20' or larger) showing:
Side slopes, 3:1 or lower,
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
4. If the basin is used for sediment and erosion control during construction, dean out of the basin is specified
on the plans prior to use as a wet detention basin.
?d•t 5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay,
to verify volume provided.
GZ 6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized.
7. The supporting calculations.
A!MA_Lf _7 8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
4ZLI- 9. A Dopy of the deed restrictions (if required).
10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
Form SW401-Wet Detention Basin-Rev.4 Part III. Required Items Checklist, Page 1 of 1
Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Wet Detention 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.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided.
This system' (check one):
? does N does not
This system (check one):
? does E does not
incorporate a vegetated filter at the outlet.
incorporate pretreatment other than a forebay.
Important maintenance procedures:
Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
- Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
- If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
- Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected once a month and
within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a
Coastal County). Records of operation and maintenance should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:! Potential problem: How I will remediate the roblern:
The entire BMP Trash/debris is resent. Remove the trash/ debris.
The perimeter of the wet Areas of bare soil and/or Regrade the soil if necessary to
detention basin erosive gullies have formed. remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too Maintain vegetation at a height of
long.
a roximatel six inches.
Form SW401-Wet Detention Basin O&M-Rev.3 Page 1 of 4
Permit Number: 5w 0 68 D S 0 S
(to be provided by DWQ)
Drainage Area Number:
BMP element: Potential problem: How I will remediate the roblem:
The inlet device: pipe or The pipe is clogged. Unclog the pipe. Dispose of the
Swale sediment off-site.
The pipe is cracked or Replace the pipe.
otherwise damaged.
Erosion is occurring in the Regrade the swale if necessary to
Swale. smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future roblems with erosion.
The forebay Sediment has accumulated to Search for the source of the
a depth greater than the sediment and remedy the problem if
original design depth for possible. Remove the sediment and
sediment storage. dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred. Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present. Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than s ra in .
The vegetated shelf Best professional practices Prune according to best professional
show that pruning is needed practices
to maintain optimal plant
health.
Plants are dead, diseased or Determine the source of the
dying. problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Weeds are present. Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the lants rather than spraying.
The main treatment area Sediment has accumulated to Search for the source of the
a depth greater than the sediment and remedy the problem if
original design sediment possible. Remove the sediment and
storage depth. dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over Consult a professional to remove
50% of the area. and control the algal growth.
Cattails, phragmites or other Remove the plants by wiping them
invasive plants cover 50% of with pesticide (do not spray).
the basin surface.
Form SW401-Wet Detention Basin 0&M-Rev.3 Page 2 of 4
Permit Number: 5A1) 9 0 9 0 ?56 5-
(to be provided by DWQ)
Drainage Area Number:
BMP element: Potential problem: How I will rentediate the problem:
The embankment Shrubs have started to grow Remove shrubs immediately.
on the embankment.
Evidence of muskrat or Use traps to remove muskrats and
beaver activity is present. consult a professional to remove
beavers.
A tree has started to grow on Consult a dam safety specialist to
the embankment. remove the tree.
An annual inspection by an Make all needed repairs.
appropriate professional
shows that the embankment
needs re air.
The outlet device Clogging has occurred. Clean out the outlet device. Dispose
of the sediment off-site.
The outlet device is damaged Repair or replace the outlet device.
The receiving water Erosion or other signs of Contact the local NC Division of
damage have occurred at the Water Quality Regional Office, or
outlet the 401 Oversight Unit at 919-733-
__ 1786.
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 1 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 1 feet in the forebay, the sediment shall
be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 21.5
Sediment Removal 14 ? Pe ianen Pool
----------------- Volume -- Sediment Removal Elevation 14 - - -- Volume
Bottom Elevati 13 -ft Min. ----------------
Sediment Bottom Elevation 13 1-ft
Storage Sedimei
FOREBAY
MAIN POND
Storage
Form SW401-Wet Detention Basin O&M-Rev.3 Page 3 of 4
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:Holy Cross Episcopal Church - Myrtle Grove Site
BMP drainage area number: I (Post"A")
Print name:Darri Johnson
Title: Senior Warden
1, ` ?? CN ?? t r , a Notary Public for the State of
?* ?'A ?2 uc, ni y , County of __)qC ,ry 0 ,w O'= do hereby certify that
+J 'y s N personally appeared before me this , i
A40
day of r; and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my band and official
SEAL
My commission expires y
Form SW401-Wet Detention Basin O&M-Rev.3 Page 4 of 4
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.