HomeMy WebLinkAboutSW7080213_CURRENT PERMIT_20200318STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
DOC DATE���
YYYYMMDD
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary .
BRIAN WRENN
Acting Director
NORTH CAROL€NA
Environmental Quality
March 18, 2020
Grace & Truth Community Church, Inc.
Attention: Keith L. Smith, Pastor
P.O. Box 2666
Elizabeth City, NC 27906
Subject: Stormwater Permit No. SW7080213 Renewal
Grace & Truth Community Church
High Density Stormwater Project
Pasquotank County
Dear Pastor Smith:
The Washington Regional Office received a Stormwater Management Permit
Application for renewal of the subject permit on February 18, 2020. Staff review of the
application has determined that the permit can be reissued. We are forwarding Permit
No. SW7080213 dated March 18, 2020, for the continued operation of the subject
project.
This permit, upon its effective date, will replace all previous State Stormwater permits for
this project. This permit shall be effective from June 30, 2020 until June 29, 2028 and
shall be subject to the conditions and limitations as specified therein, and does not
supercede any other agency permit that may be required. 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 thirty (30)
days following receipt of this permit. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the
Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714.
Unless such demands are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please
contact me at (252) 948-3923.
Sincerely,
Roger K. Thorpe
Environmental Engineer
North Carolina Department of Environmental Quality I Division of Energy. Mineral and Land Resources
Washington Regional Office 1 943 Washington Square Mall € Washington. North Carolina 27889
'YI' i e•7' - "•r�ItrFnH CA.WA - �yl� ''
252.946.6481
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
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
Grace & Truth Community Church, Inc.
Grace & Truth Community Church
Located at 1300 Walker Avenue, Elizabeth City, NC, Pasquotank County
FOR THE
construction, operation and maintenance of three grassed bioretention areas in
compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the
"stormwater rules') and the approved stormwater management plans and specifications
and other supporting data as attached and on file with and approved by the Division of
Energy, Mineral, and Land Resources (Division) and considered a part of this permit.
This permit shall be effective from June 30, 2020 until June 29, 2028, and shall be
subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6. of this permit. The stormwater control has
been designed to handle the runoff from 66,928 square feet of impervious area.
Basins 1 and 1A are connected to Basin 2-3 by an underground connection to
act as one basin to achieve volume capacity for Drainage Areas 1, 1A, 2 and 3.
3. The tract will be limited to the amount of built -upon area indicated in Section 1.6
of this permit, and per approved plans and specifications.
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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.
6. The following design criteria have been provided in the bioretention areas and
must be maintained at design condition:
Area 1-1A Area 2-3 Area 4
a. Drainage Area, ft2:
25,356 46,174 46,645
b. Total Impervious Surfaces, ft2: "
18,284 31,534 17,110
C. Design Storm, inches:
1.0"&1.5" 1.0" 1.01,
d. Ponding Depth, inches:
9.0 9.0 9.0
e. Temporary Ponded Elev., FMSL:
8.20 8.20 8.20
f. Planting Elev., FMSL:
7.45 7.45 7.45
g. Bioretention Surface Area, ft2:
1,500 5,735 8,600
h. Permitted Storage Volume, ft3:
998 3,718 5,910
i.. Type of Planting Media Soil:
85% Sand, 12% Fines, 3% Organic
j.. Type of In -situ Soils:
Arapahoe, fine sandy loam with. clayey -
pockets
j. Expected Infiltration Rate, inlhr:
2.0 2.0 2.0
k. Seasonal High Water, FMSL:
5.45 5.45 5.45
1. Receiving Stream/River Basin:
Knobbs Creek 1 Pasuotank
M. Stream Index Number:
30 — 3 — 8
n. Classification of Water Body:
"CI Sw,
IL 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 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 (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow
spreader, catch basins and piping.-
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon
request to authorized personnel of the Division. The records will indicate the
date, activity, name of person performing the work and what actions were taken.
5. The facilities shall be constructed as shown on the approved plans. This permit
shall become voidable unless the facilities are constructed in accordance with the
conditions of this permit, the approved plans and specifications, and other
supporting data.
6. Upon completion of construction, prior to issuance of a Certificate of Occupancy,
and prior to operation of this permitted facility, a certification must be received
from an appropriate designer for the system installed certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting documentation. Any deviations from the
approved plans and specifications must be noted on the Certification. A
modification may be required for those deviations.
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. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
9. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a .CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
10. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
11. A copy of the approved plans and specifications shall be maintained on file by
the Permittee at all times.
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.
III. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director.
In the event of a change of ownership, or a name change, the permittee must
submit a formal permit transfer request to the Division, accompanied by a
completed name/ownership change form, documentation from the parties
involved, and other supporting materials as may be appropriate. The approval of
this request will be considered on its merits and may or may not be approved.
The permittee is responsible for compliance with all permit conditions until such
time as the Division approves the transfer request.
2. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division, 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) having jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
5. The permittee grants DEQ Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
8.. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address
changes within 30 days.
10. This permit shall be effective from June 30, 2020 until June 29, 2028.
Application for permit renewal shall be submitted 180 days prior to the expiration
date of this permit and must be accompanied by the processing fee.
Permit issued this the 18th day of March 2020.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for
Brian Wrenn, Acting Director
Division of Energy, Mineral, and Land Resources
By Authority of the Environmental Management Commission
Stormwater Permit No. SW7080213
9
- QEMLR USE ONLY
Date Received
Fee Paid
Permit Number
- a
w '7 cob O
NC DEQ Division of Energy, Mineral and Land Resources
STATE STORMWATER:
PFPMIT PFMFW,&l I&PPI IICe MN F;1 "EIVED FE � 2020
L
1n accordance with 1.5A NCAC 2H.1045(3), the current permit holder shall renew their high density permit 180 days
prior to its expiration. Renewed permits are valid for a period of 8 years per Session Law 2011-398 (S8 781)
Section 60. (c). This application form is for permit renewals only.
A. PROJECT INFORMATION
1. State Stormwater Permit Number: ` 5 V V -7 o g 0
2. Project name: �-�' ens% r w �/z-
3. Project street address:
City: County:
4. What, if any, changes have been made to the project as permitted? _
n
/�Scf� TA�vI< ZIP :
If the project has changed from the original approved plans, please complete SWU-101 for a Major
Modification or Minor Modification Application form available at: h,. ttDsa/deter .nc.govlabout/divisionslenerpy-
rnineral-land-resoiaceslar;er -mineral-Iand-riflezlstarrr,wnter�pyn, alttlpist-construction.
B. PERMITTEE INFORMATION
If changes to the permittee or project name have been made, please complete either the Permit Update form
or the Permit Transfer form available at:,tktttas;!'Cft'U.fic.yClVd�JUl3i�{�3y351Q1IS1�fTBf4
sourceY`nik118181-IciEli�-
re, _ eral-land-rules/stormwater-programlpost-construction. State Stormwater Permits do not
_ slenergy-min,,,
automatically transfer with the sale of the property.
1. Current Permit Holder's Co an Nam IOr anization:UPACer~r�fn�w+T,
2. Signing Official's Name:
3. Signing Official's Title:
4. Mailing Address: 4 A6 d(06
City: /l-214 A/1 G' State: V"- ZIP ;a?7106
5. Street Address: u t.
City: �. `z 5 �- G ` State: -N2 zip: a7 yo 9
6. Phone: { S ) 33-77J5 Finail: acL(c e an dir,--M e C Olt C001
Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018
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'C. SUBMITTAL REQUIREMENTS
Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR
Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HQW/ORW). Only applications packages that
include all required items listed below will be accepted and reviewed.
Initial each item below to indicate that the required information is provided in the application package:
1. A permit application processing fee of $505.00 payable to NCDEQ.
2. One original signed hard copy and one electronic copy of this completed form. The signing official
named on this application to represent the current permittee must meet one of the following:
a. Corporation — a principle executive officer of at least the level of vice-president;
b. Limited Liability Company (LLC) — a manager or company official as those terms are defined
in G.S. 57D "North Carolina Limited Liability Company Act;"
c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee;
d. Partnership or limited partnership — the general partner;
e. Sole proprietor; or
f. Letter of authorization signed by one of the signatories noted in a — e above authorizing the
signature of another entity.
3. One hard copy and one electronic copy of recorded documents required by the original permit that
have not yet been received by DEMLR, including: deed restrictions, protective covenants,
condominium/planned community declaration and easements. If the project has been built, include
documentation that the maximum BUA per lot or maximum total BUA has -not been exceeded. If
the project has not been built, include a signed agreement that the final recorded deed restrictions
and protective covenants will be submitted at a later date.
4. O&M Agreements, Please select one:
I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to keep
this on file with the permit; or
I do not have a copy of the current recorded O&M Agreement for all SCMs and am requesting a
copy be sent to me. I agree to Keep this on file with the permit.
5. Designer Certifications, Please select one:
A copy of the certlfication(s) confirming that the project was built in accordance with the
approved plans have been previously provided to the Division; or
A copy of the certification(s) confirming that the project was built in accordance with the
approved plans are enclosed; or
The project has not yet been built.
6. [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a
signed, sealed, and dated letter from a licensed professional stating that the SCMs have been
inspected, and that they have been built and maintained in accordance with the permit.
7. [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC):
Provide one hard copy and one electronic copy of documentation from the NC Secretary of State,
or other official documentation, which supports the titles and positions held by the persons listed in
Section C.2 per 15A NCAC 2H. 1043(3)(b).
http,s://www.sosnc._govlonline serviceslsearchlby title/ Business Registration
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018
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D. PtRMITTEE'S CERTIFICATION
. A, A A4, _ the person legally responsible for the permit, certify that I have
a copy of the Permit and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am
responsible for the performance of the maintenance procedures, and the site has been and will be maintained
according to the O&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs
or built -upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the
project, SCMs, or ownership. All information provided on this permit renewal application is, to the best of my
knowledge, correct and complete.
Signature: Date: 2// z/Z4.-D
NOTARIZATION:
I, ��„ _`�+r? _! e �__ 5� _ _ , a Notary Public for the State of
CZM O1�n (2A. County of2fa-m� , do hereby certify
that fl j 1_ C_)rY-%kA-ti _ personally appeared before me
this the -dayof c 20_Q, and acknowledge the due
execution of the forgoing instrument. Witness my hand and official seal,
(Notary Seal)
7
Notary Signatur
c
My commission expires _
t�lylll i l ,Il
,•�'�p,RIE S'�.,
NOTAR), •' 7_ =
y' PUBLIC
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018
SOIL EVALUATION FOR
STORMWATER MANAGEMENT
Conducted On:
GRACE AND TRUTH COMMUNITY CHURCH
PROPOSED STORMWATER BMP
CITY OF ELIZABETH CITY, NORTH CAROLINA
MSA Project # 08003
For:
MS. CAROLINE O. COPELAND
A.R. CHESSON CONSTRUCTION CO., INC.
315 W. MAIN STREET — P.O. BOX 1147
WILLIAMSTON, NC 27892
Issue Dale: January 9, 2008
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Prepared BypYS���.,,��G SFd' : 2
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m e
SEAL
1848
�o�y OL OCA.\v
Charles H. Ha11, L.G., Hydrogeologist
Director — Geosciences Department Sea]
MSA, P.C.
5033 Rouse Drive
Virginia Beach, VA 23462
TEL (757) 490-9264 FAX (757) 490-0634
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ROY COOPER
covemor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
NORTH CAROLINA
Environmental Quality
January 23, 2020
Grace and Truth Community Church
Attention: Keith L. Smith, Pastor
P.O. Box 2666
Elizabeth City, NC 27906
Subject: Stormwater Permit No. SW7080213 Renewal
Grace and Truth Community Church
High Density Stormwater Project
Dear Pastor Smith: Pasquotank County
A Division of Energy, Mineral, and Land Resources file review has determined that
Stormwater Permit SV 7080213 for a stormwater treatment system consisting of three
grassed bioretention cells serving the Grace and Truth Community Church located at
1300 Walker Avenue in Elizabeth City, NC expires on June 29, 2020. This is a reminder
that permit renewal applications are due .180 days prior to expiration. We do not have a
record of receiving a renewal application.
Please submit a completed permit renewal application along with a $505.00 fee for
permit renewal. Also, it was noted in the file review that a designer's certification that the
project was constructed in accordance with the approved plans as required by the
permit has not been submitted. Please include this with your application. Permit
application forms for renewal can be found on our website at:
httR;(/deg.nc.guy/about/divisions/energy-mineral-land-resources/�ral-land-
rules jstormwater-program/post-�Qa2truction. North Carolina General Statutes and the
Coastal Stormwater rules require that this property be covered under a stormwater
permit. Failure to maintain a permit subjects the permittee/owner to assessment of civil
penalties.
If you have questions, please feel free to contact me at (252) 948-3923, 1 will be glad to
discuss this by phone or meet with you. If you would like, I can e-mail you a copy of the
application forms. You can request a copy by e-mailing me at rQger.thorpe@nc r w
Sincerely,
/` %�--�'te .
Rog r K. Thorpe
Environmental Engineer
Q
�� North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Q
Washington Regional Office 1943 Washington Square Mail I Washington, North Carolina 27889
252,946,6481
Permit Number:_ # 7 is
(to he provided hr' DWQ)
Drainage Area Nurnber: IR
Bioretention Inspection and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected. repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important inspection and maintenance procedures:
— Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
— Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
— Heavy equipment will NEVER be driven over the hioretention cell.
— Special care will be taken to prevent sediment from entering the bioretention cell.
— Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established. I will inspect it once a month and within 24
hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of inspection and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BVIP element:
Potential mblerns:
How I will remediate the mblem:
The entire BMP
Trash/ debris is present.
Remove the trash/ debris.
The perimeter of the
Areas of bare soil and/ or
Regrade the soil if necessary to
bioretention cell
erosive gullies have formed.
reiuove the gully, and then plant a
ground cover and water until it is
established. Provide limc and a
one-time fertilizer application.
The inlet device: pipe,
The pipe is clogged (if
Unclog the pipe. Dispose ol'the
stone verge orswale
applicable).
sediment orf-site.
The pipe is cracked or
12eplace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the Swale it' necessary to
Swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Stone verge is clogged or
Remove sediment and clogged
covered in sediment (if
stone and replace with clean stone.
a plicable).
Form SW401-Bioretention 1&M-Rev.2
Page I of 4
LIMP element:
Potential mblems:
How i will remediate theproblem:
The pretreatment area
Flow is bypassing
Regrade if necessary to route all
pretreatment area and/ or
flow to the pretreatment area.
gullies have formed.
Rest abilize the area after grading.
Sediment has accumulated to
Search for the source of the
a depth greater than three
sediment and remedy the problem if
inches.
possible. Remove the sediment and
restabilize the pretreatment area.
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.
The biorttention cell:
Best professional practices
Prune according to best professional
vegetation
show that pruning is needed
practices.
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of tale
dying,
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover ifa soil test indicates
it is necessary.
Tree stakes/ wires are present
Remove tree stake/ wires (which
six months after planting,
can kill the tree if not removed).
The bioretention cell:
Mulch is breaking down or
Spot mulch if there are only random
soils and mulch
has floated away.
void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum depth of three inches.
Soils and/ or rn111ch are
Determine the extent of the clogging
clogged with sediment.
- remove and replace citherjust the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off -site location. Use
triple shredded hard wood mulch at
a maximum depth of three inches.
Search far the source of the
sediment and remedy the problem if'
possible.
An annual soil test shows that
Dolomitic lisle shall be applied as
pH has dropped or heavy
recommended per the soil test and
metals have accumulated in
toxic soils shall he removed,
the soil media.
disposed of properly and replaced
with new planting media.
Form SW401-Bioretention I&M-Rev.2 Page 2 o[ 4
BMP element:
Potentialproblems:
How 1 will remediate the problem:
The under -drain system
Clogging has occurred.
Wash out the underdrain system.
(if applicable)
The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of'
the sediment off -site.
The drop inlet is damaged
Repair or replace the droe inlet.
The receiving water
Erosion or other signs of
Contact the NC Division ol' Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
ott t let.
733-1786.
Form SW401-Bioretention I&M-Rev.2 Page 3 of 4
Permit Number:
(to he 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: Grace and Truth Community Church
BMP drainage area number: I A
Print name: Johnie D. Harvey, III
Title: Building and Grounds Manag.Lr
Address: 1300 Walker Avenue
Phone: (252) 338-7705
Signature:_
Date:
Elizabeth Citv. NC 27909
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.
1, CQcalin( (). rnpriaod a Notary Public for the State of
+3C) T-�h IaroliOa County of &,+�C- do hereby certify that
"Sohnic. � . Rat-u f,q -ET- personally appeared before me this
day of _�� 1�ji and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires f eCrr4 nt2 _
Form SW401-Bioretention I&M-Rov. 2
Page 4 of 4
Permit Number:
(to be provided by DWQ)
O�O� WA7�gQG
HCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
11. PROJECT INFORMATION
j
Project name
Grace and Truth Community Church
Contact name
Sam Jarvis
Phone number
(252) 923.0302
Date
June 1, 2012
Drainage area number
1 8 1A
II. DESIGN INFORMATION
Site Characteristics
Drainage area 25,356 it
Impervious area 18,284 it
Percent impervious 72.1% RECEIVED
Design rainfall depth 1.5 inch
Peak Flow Calculations
Is pre/post control of the 1-yr, 24-hr peak flow required?
(Y or N)
1-yr, 24-hr runoff depth
in
1-yr, 24-hr intensity
in/hr
Pre -development 1-yr, 24-hr peak flow
ft3/sec
Post -development 1-yr, 24-hr peak flow
ft3/sec
Pre/Post 1-yr, 24-hr peak control
ft3/sec
Storage Volume: Non -SR Waters
Design volume
998.0 ft3
Storage Volume: SR Waters
Pre -development 1-yr, 24-hr runoff
it
Post -development 1-yr, 24-hr runoff
it
Minimum volume required
0 it
Volume provided
it
Cell Dimensions
Ponding depth of water
9 inches OK
Ponding depth of water
0.75 it
Surface area of the top of the bioretention cell
1,500.0 it OK
Length:
75 it OK
Width:
20 it OK
-or- Radius
it
Soils Report Summary
Drawdown time, ponded volume
4.5 hr
OK
Drawdown time, to 24 inches below surface
12 hr
OK
Drawdown time, total:
16.5 hr
In -situ soil.
Soil permeability
2.00 in/hr
OK
Planting media soil:
Soil permeability
2.00 in/hr
OK
Soil composition
• Sand (by weight)
86%
OK
• Fines (by weight)
12%
OK
Form SW401 -Bioretention- Rev. 2
JUN - 5 2012
DWQ-WARO
Parts I and 11, Design Summary, Page 1 of 2
Permit Number:
(to be provided by DWQ)
% Organic (by weight)
Phosphorus Index (P-Index)
Basin Elevations
Temporary pool elevation
Planting elevation (top of the mulch)
Bottom of the cell
Planting depth
Depth of mulch
SHWT elevation
Are underdrains being installed?
3% OK
Total: 100%
20 (unitless) OK
How many clean out pipes are being installed?
What factor of safety is used for sizing the underdrains? (See
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
the bottom of the cell to account for underdrains
Bottom of the cell required
Distance from bottom to SHWT
Type of bioretention cell (answer "Y" to only one of the two
following questions):
Is this a grassed cell?
Is this a cell with trees/shrubs?
Planting Plan
Number of tree species
Number of shrub species
Number of herbaceous groundcover species
Additional Information
Does volume in excess of the design volume bypass the
bioretention cell?
Does volume in excess of the design volume flow evenly
distributed through a vegetated filter
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30 feet from surface waters (50 feet if
SA waters)?
Is the BMP localed at least 100 feet from water supply wells?
Are the vegetated side slopes equal to or less than 3:1?
Is the BMP located in a recorded drainage easement with a
recorded access easement to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
Is the area surrounding the cell likely to undergo development in
the future?
Are the slopes draining to the bioretention cell greater than 20%?
Is the drainage area permanently stabilized?
Pretreatment Used
(Indicate Type Used with an "X" in the shaded cell)
Gravel and grass
(8'inches gravel followed by 3-5 h of grass)
Grassed swale
Forebay
8 fmsl
7.45 fmsl OK
7.45 fmsl
0 ft
4 inches OK
5.45 fmsl OK
N (Y or N)
0 ft
7.45 fmsl
2 ft OK
Y (Y or N) Insufficient media depth
N (Y or N)
Centipede Sod OK
Y (Y or N) OK
Y (Y or N) OK
30 ft
Y (Y or N) Submit a level spreader supplement.
Y (Y or N) OK
Y (Y or N) OK
Y (Y or N) OK
N (Y or N) Insufficient ROW location.
1 tUsec OK
N (Y or N) OK
N (Y or N) OK
Y (Y or N) OK
OK
X
Form SW401-Bioretention•Rov.2 Parts I and II. Design Summary, Page 2 of 2
STORMWATER MANAGEMENT
NARRATIVE
Grace and Truth Community Church
Elizabeth City
Pasquotank County, North Carolina
RECEIVED
M AY - 9 2012
DWQ-WARD
Ralph S. Jarvis, PE, PLS
xiliss00
'L•.
:a SEAL
9 '; �242
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_:id$
JARVIS CONSULTANTS, INC.
CONSULTING ENGINEERS -PLANNERS -SURVEYORS
212 South Main Street, Beth, North Cm-olina 27808 Tcicphone (252) 923-0302 / Rix (252) 923-0306
S`I'ORMWATER MANAGEMENT NARRATIVE
A. DFsCRIPTION OF PROJECT
Location of Project
The project is located at 1300 Walker Avenue, Elizabeth City, North Carolina. It is in
the southwest portion of the city in predominately residential zoning.
Type of Development
The parking lot addition project consists of grading, placing stone, and modifying the
stormwater management system adjacent to Walker Avenue. There are existing
improvements covered by permit number SW7080213 issued March 5, 2008. The
permitted area is identified as area 1. The area to be expanded is area IA.
Earth Disturbing Activities
The site presently has had stone placed on it in anticipation of grading and drainage.
Earth disturbances will consist of 0.64 acres for the construction of the new parking
area, erosion control measures, and stormwater detention features. The City of
Elizabeth City has the construction plans under review.
Existing Drainage Patterns
The site has the stormwater collection and treatment systems along both the eastern
and western property lines. All the construction permitted under the existing permit
has been completed, Both systems drain southward toward Walker Avenue.
Proposed Drainage Patterns
The existing Drainage Area 4 will not be impacted by the new proposed construction.
Drainage Area 1, 2, and 3 are all interconnected hydrostatically and share storage
volume. They were designed with storage from a one inch rainfall event. Future
parking areas were anticipated and reserve capacity provided in the permit and
construction of the existing system. The location of the future parking lot was not
decided upon until recently. Since the original permit was issued, the Coastal
Stormwater Rules has changed to require storage from one and one half inches of
rainfall. There was a deficit in the storage volume and it modification for additional
storage was necessary. The new parking lot required storage has been computed
under the newest rules while the existing permit covers the one inch volume. The new
volurrre under the rules requires 4,636 CIF of storage and 4,716 CF of storage will he
provided.
The bioretention cell supplement enclosed is the same as the date of the original
permit and has Areas I and IA combined and a rainfall event of one and one half
inches. The provided storage is sufficient to handle the rainfall even in Areas I and
A without having to show the one inch area as a separate item. The older version of
the supplement allowed for SHWT separation from the bottom of the storage volume
whereas the current addition shows an insufficiency with the required separation.
Construction Sequence
Currently installed gravel will be removed and re -used within the new parking area
Containment devices will be installed for construction discharge. Stormwater
management devices will not be completed until site stabilization has been
completed.
2