HomeMy WebLinkAboutSW7131206_CURRENT PERMIT_20131220STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
?T CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE��%`a2r%
YYYYMMDD
A�
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Energy, Mineral, and Land Resources
Land Quality Section
Tracy E. Davis, PE, CPM
Director
December 20. 2013
River Run Apartments, LLC
Attn.: Mr. Fred G. Mills, Sr., Manager
PO Box 6171
Raleigh, NC 27628
Subject: Stormwater Permit No. SW7131206
River Run Apartments
High Density Commercial Wet Pond Project
Beaufort County
Dear Mr. Mills:
W0.710
Pat McCrory, Governor
John E. Skvarla, III, Secretary
The Washington Regional Office received a complete Stormwater Management Permit
Application for the River Run Apartments project on December 13, 2013. 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 2008-211 and Title 15A
NCAC 21-1.1000. We are forwarding Permit No. SW7131206 dated December 20, 2013,
for the construction of the subject project.
This permit shall be effective from the date of issuance until December 20, 2021, 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 thirty (30)
days following receipt of this permit. This request must be in the form of a written
petition, conforming to Chapter 150E 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) 946-6481.
Sincerely,
Samir Dumpor, PE
Environmental Engineer
Washington Regional Office
943 Washington Square Mall, Washington, North Carolina 27889 • Phone: 252-946-6481 / FAX: 252-975-3716
Internet: http://www.portal.ncdenr.org/web/Ir/land-quality
An Equal Opportunity I Affirmative Action Employer - 50%Recycled110% Post Consumer Paper
SD: G:\LR\SWP\SD\SW7131206
cc: ey�u\� ,Matt Williams, PE, Borum, Wade and Associates (621 Eugene Court,
Suite 100, Greensboro, NC 27401)
✓Beaufort County Building Inspections
✓Washington Regional Office
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAND NATURAL RESOURCES
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
River Run Apartments, LLC
River Run Apartments
Beaufort County
FOR THE
construction, operation and maintenance of one wet detention pond in compliance with
the provisions of Session Law 2008-211 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 Energy, Mineral, and Land Resources and considered a part of this
permit.
This permit shall be effective from the date of issuance until December 20, 2021, 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.
This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.7 of this 1permit. The stormwater control has been
designed to handle the runoff from 99,317 square feet of impervious area.
3. The tract will be limited to the amount ofibuilt-upon area indicated in Section I. of
this permit, and per approved plans.
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 built -upon areas associated with this project shall be located at least 50 feet
landward of all perennial and intermittent surface waters.
Page 2 of 7
7. The following design criteria have been provided in the wet detention pond and
must be maintained at design condition:
a.
Drainage Area, ftZ:
198,634
b.
Total Impervious Surfaces, ftZ:
99,317
C.
Design Storm, inches:
1.5
d.
Pond Depth - average, feet:
3.5
e.
TSS removal efficiency:
90%
f.
Permanent Pool Elevation, FMSL:
25.00
g.
Permanent Pool Surface Area required, ftZ:
9,932
h.
Permanent Pool SurfacsArea, ft :
11,983
i.
Min. Volume required, ft :
12,415
j.
Permitted Storage Volume, ft3:
13,033
k.
Temporary Storage Elevation, FMSL:
26.00
I.
Controlling Orifice:
2.00"0 pipe
M.
Permitted Forebay Volume, ft3:
12,147
n.
Receiving Stream/River Basin: Crawford Creek/ Tar -Pam River Basin
o.
Stream Index Number:
29-6-2
P.
Classification of Water Body:
"SC; NSW"
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 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. Mowin.9 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.
The permittee shall submit to the Division of Energy, Mineral, and Land
Resources 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.
Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
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
Page 3 of 7
conditions of this permit, the approved plans and specifications, and other
supporting data.
8. 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'iwith this permit, the approved plans and
specifications, and other supporting documentation. Any deviations from the
approved plans and specifications must1be noted on the Certification. A
modification may be required for those deviations.
9. 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.
10. 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 ias 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.
11. 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.
12. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
13. A copy of the approved plans and specifications shall be maintained on file by
the Permittee at all times.
Ill. GENERAL CONDITIONS
1. 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 Energy,
Mineral, and Land Resources, 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.
Page 4 of 7
3. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Energy, Mineral,
and Land Resources, 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 2008-
211, Title 15A NCAC 2H.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.
12. This permit shall be effective from the date of issuance until December 20, 2021.
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 20th day of December, 2013.
NORTH CAROLJNA ENVIRONMENTAL MANAGEMENT COMMISSION
C
for
Division of Energy, Mineral, and Land Resources
By Authority of the Environmental Management Commission
Stormwater Permit No. SW7131206
Page 5 of 7
Certification Requirements:
1. The drainage area to the systemlcontains 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.
I
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-DEMLR Washington Regional,Office
Beaufort County Building Inspections
Page 7 of ;7
River Run Apartments
Stormwater Permit No. SW7131206
Beaufort County
Designer's Certification
I, , as a duly registered in the
State of North Carolina, having been authorized to observe (periodically/ weekly/ full
time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 6 of 7
River Run Apartments
Stormwater Permit No. SW7131206
Beaufort County
Designer's Certification
I, hiclmER S. W406 as a duly registered PROFEMOM& ENGINEER in the
State of North Carolina, having been authorized to observe (periodically/ weekly/ full
time) the construction of the project,
RYVER Lry APARTmENTr WET DETrWTzaN Palyp
(Project)
for RTUER RqW 4PAfTMf-P1TS L C (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: .
J SEAL
Signature `����•P�\A CAROB'
Registration Number G l 0 7 p::oFessio ., ,L ,
Date 2 �� `=4QSEALV'7'
10771
/4z�R
Page 6 of 7
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.
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.
v'/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.
V___42.
Required drawdown devices are correctly sized per the approved plans.
�3.
All required design depths are provided.
✓_1.4.
All required parts of the system are.provided,:such as a vegetated shelf;
-
land a forebay. r '
✓f5. The required system dimensions are provided per the approved plans.
cc: NCDENR-DEMLR Washington Regional Office
Beaufort County Building Inspections
Page 7 of 7
S
LENILR USE ONLY
ate Rece` ved
Pee Paid
Permit Number
13 21ii.i
4 '
75- � �W-V�
15
019D O
Applicable Rules: ❑ Coastal SW — 1995
❑ Coastal S — 2008 ❑ Ph 11 - Post Construction
(select all HNISPOE ,ddNb n-Coastal SW- I-IQW/ORW Waters El Universal Stormwater Management Plan
Other WQ M mt Plan:
State of North Carolina
Department of Environment and Natural Resources
Division of Energy, Mineral and Land Resources
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
I. GENERAL INFORMATION
1. ['reject Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
River Run Apartments
2. Location of Project (street address):
City: Chocowinity County: Beaufort Zip: 27817
3. Directions to project (from nearest major intersection):
Site is located 400 feet SE from intersection of Winfield Street and US Hwy 17
4. Latitude:35' 30' 56" N Longitude:77* 5' 41" W of the main entrance to the project.
it. PERMIT INFORMATION:
1. a. Specify whether project is (check one): ®New ❑Modification ❑ Renewal w/ Modification,
lReruaaals with modifications also requires SWU-102 — Reneroal Application Form
b.If this application is being submitted as the result of a modification to an existing permit, list the existing
permit number , its issue date (if known) , and the status of
construction: ❑Not Started ❑Partially Completed* ❑ Completed* *provide a designer's
certification
2. Specify the type of project (check one):
❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other
3. If this application is being submitted as the result of a previously returned application or a letter from
DEMLR requesting a state stormwater management permit application, list the Stormwater project number,
if assigned, and the previous name of the project, if different than currently
proposed,
4. a. Additional Project Requirements (check applicable blanks; information on required stale permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
i
❑LAMA Major ®Sedimentation/Erosion Contrgl`:5.55 ac o Disturbed Area
❑NPDES Industrial Stormwater ❑404/401 Permit: Proposed Impacts
b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number,
issue date and the type of each permit:
5. Is the project located within 5 miles of a public airport? ®No ❑Ye
If yes, sce S.L. 2012-200, Part Vl: htt portal.ncdent-mi '/web/Ir/rules-and-regulations
Form SWU-101 Version Ocl. 31, 2013 Page I of 6
III. CONTACT INFORMATION
I . a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee,
designated government official, individual, etc. who owns the project):
Applicant/Organization:River Run Apartments, LLC
Signing Official & Title Fred C. Mills, Sr., Manager
b.Conlacl information for person listed in item la above:
Street Add
City:
Mailing Address (if applicable):PO Box 6171
State:
Cily:Ralei€h StateNC Zip:27628
Phone: (919 ) 755-9155 Fax: (919 ) 882-8500
c. Please check the appropriate box. The applicant listed above is:
❑ The property owner (Skip to Contact Information, item 3a)
❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below)
® Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and
2b below)
® Developer* (Complete Contact Information, item 2a and 2b below.)
2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the
person who owns the property that the project is located on):
Property Owner /Organization:Friedman/Ravenwood, LLC
Signing Official & Title:Stanley Friedman, Manager
b.Contact information for person listed in item 2a above:
Street Address:401 Moss Way
Cily:Washington StateNC Zip:27889
Mailing Address (ifnpplicable):PO Box 1845
City:Washington
Phone: (919 ) 654-1605
StateNC Zip:27889
Fax: (919 ) 645-1606
3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other
person who can answer questions about the project:
Other Contact Person/Organization:Mark Morgan
Signing Official & Title
b.Conlact information for person listed in item 3a above:
Mailing Address:PO Box 6171
City:Raleigh
Phone: (336 ) 689-0447
StateNC Zip:27628
Fax: ( )
Gmail:nutrkCmcnuiinc com
Form SWU-101 Version Oct. 31. 2013 Page 2 of 7
4. Local jurisdiction for building permits:
Point of Conlact:Kevin Brickhouse
IV. PROJECT INFORMATION
Phone #: (252 ) 945-7977
1. In the space provided below, briefly summarize how the stonnwaler runoff will be treated.
Slormwaler will be treated in a Wet Detention Pond
2. a. If claiming vested rights, identify the supporting documents provided and the dale they were approved:
❑ Approval of a Site Specific Development Plan or PUD Approval Date:
❑ Valid Building Permit Issued Date:
❑ Other: Dale:
b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with:
❑ Coastal SW —1995 ❑ Ph 11— Post Construction
3. Slormwaler runoff from this project drains to the Tar -Pamlico River basin.
4. Total Property Area: 6.138 acres 5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
7. Total Property Area (4) — Total Coastal Wetlands Area (5) — Total Surface Water Area (6) = Total Project Area':
6.138 acres
Total project area shall be calculated to exclude the following: the normal pool of impounded structures, the area
behveen the banks of streams and rivers, the area below the }Jornml High Water (NHW) line or Mean High Water
(MHW) line, and coastal wetlands landward from the NHW (or MHW) line. The resultant project area is used to
calculate overall percent built upon area (BLIA). Non -coastal Wetlands landward of the NHW (or MHW) line may
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 37.1 %
9. Flow many drainage areas does the project have?7 (For high density, count 1 for each propose engineered
stormwater BMP. For low density and other projects, use 1 for the whole property area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below.
a�
Pone S%VIJ-101 Version Oct. 31, 2013 ['age 3 47
Basin Information
Drainage Area 'I
Drainage Area _
Drainage Area
Drainage Area
Receiving Stream Name
Crawford Cr
Stream Class *
SC; NSW
Stream Index Number *
29-6-2
Total Drainage Area (sf)
198634
56
On -site Drainage Area (sf)
198634
Off -site Drainage Area (so
0
Proposed Impervious Area** (sf)
99317
2 .SS
'% Impervious Area*" (total)
50
Impervious** Surface Area
Drainage Area I
Drainage Area
Drainage Area
Drainage Area
On -site Buildings/Lots (so
36422
On -site Streets (sf)
On -site Parking (sf)
49629
On -site Sidewalks (sf)
13266
Other on -site (so
0
Future (so
0
Off -site (sf)
Existing BUA*** (so
Total (sf):
99317
Stream Class and Index Number can be determined at: htt)::::[portal.nedetir.or web zoq/ps/esu/classi ications
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Report only that arnount of existing 8UA that will remain after development. Do not report any existing BUA that
is to be removed and Which will be replaced by new BUA.
11. How was the off -site impervious area listed above determined? Provide documentation. No offsite drainage
Projects in Union County: Contact DEMLR Central Office staff to check if the project is located within a Threatened &
Endangered Species watershed that may be subject to more stringent stormwater requirements as per 15A NCAC 02B .0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state slormwater management permit supplement and operation and maintenance (O&M) forms
must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded
from httpL�[portal.ncdenr.org/web/wg/ws/su/bap-manual.
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Energy, Mineral and
Land Resources (DEMLR). A complete package includes all of the items listed below. A detailed application
instruction sheet and BMP checklists are available from
littp:ZZportai.ncdenr.orgZweb/wq/ws/sLI/st,iteswZfornis—docs. The complete application package should be
submitted to the appropriate DEMLR Office. (The appropriate office may be found by locating project on the
interactive online map at littp:Zlpoi-tal.iicdenr.org/iveb/wq/WS/`SLI/inaps.)
Please indicate that the following required information have been provided by initialing in the space provided
for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions
for each submitted application package from help://portal.ncdenr.org/web/wq/ws/su/statesw/forms does.
Initials
V 'I. Original and one copy of the Stormwater Management permit Application Form.
✓ 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants W
Form. (if required as per Part VII below)
3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M
agreement(s) for each BMP.
�/��7✓ 4. Permit application processing fee of $505 payable to NCDIiNR. (For an Express review, refer to
htlp://www.envhclgf pcs onestopress.hUnl for information on the Express program
and the associated fees. Contact the appropriate regional office Express permit Coordinator for
additional information and to schedule the required application meeting.)
Form SWU-101 Version Oct. 31. 2013 1'ase 4 of 7
✓/`5.
A detailed narrative (one to two pages) describing the stormwater treatment/management
for
t/ 6.
A USCS map identifying the site location. If the receiving stream is reported as class SA or the
�w
/
receiving stream drains to class SA waters within Ih mile of the site boundary, include the'h
mile radius on the map.
✓�7.
Sealed, signed and dated calculations (one copy).
pw
8.
Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including:
_1_
,/
�
i. Development/Project name.
b. Engineer and firm.
✓/
V
c. Location map with named streets and NCSR numbers.
d. Legend.
V///
e. North arrow.
�
/g.
f. Scale.
Revision number and dates.
✓
h. Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures, the banks of streams and rivers, the MFIW or NFIW line of tidal
waters, and any coastal wellands landward of the MHW or NFIW lines.
• Delineate the vegetated buffer landward from the normal pool elevation of impounded
structures, the banks of streams or rivers, and the MHW (or NFIW) of tidal waters.
j
i. Dimensioned properly/project boundary with bearings & distances.
1. Site Layout with all BUA identified and dimensioned.
k. Existing contours, proposed contours, spot elevations, finished floor elevations.
✓
1. Details of roads, drainage features, collection systems, and stormwater control measures.
/
m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of qualifications and identify the person who
made the determination on the plans.
n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations.
✓
o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffers (where required).
9.
Copy of any applicable soils report with the associated SH WT elevations (Please identify
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs. Include an 8.5"x1l" copy of the NRCS County Soils map with the
project area clearly delineated. For projects with infiltration BMPs, the report should also
include the soil type, expected infiltration rate, and the method of determining the infiltration rate.
(Infiltration Devices submitted to WiRO: Schedule a site visit far DEMLR to verify the SHWT prior
to submittal, (910) 796-7378.)
v� 10.
A copy of the most current property deed. Deed book: 1539 Page No: 001
�w
` -11.
For corporations and limited liability corporations (LLC): Provide documentation from the NC
4111
Secretary of Stale or other official documentation, which supports the titles and positions held
by the persons listed in Contact Information, item la, 2a, and/or 3a per 15A NCAC 2H.1003(e).
The corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State, otherwise the application will be returned.
http:/ /wwwsecretary.stale.nc.us/Corpora lions/ CSearch.aspxx
VI1. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed
BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be
provided as an attachment to the completed and notarized deed restriction form. The appropriate deed
restrictions and protective covenants forms can be downloaded from htti2://portii.ncdenr.org/web/Ir/state-
stormwater-forms does. Download the latest versions for each submittal.
In the instances where the applicant is different than the properly owner, it is the responsibility of the properly
owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring
that the deed restrictions are recorded.
By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and
protective covenants for this project, if required, shall include all the items required in the permit and listed
on the forms available on the website, 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 NC DEMLR, and that they will be recorded prior to the sale of any lot.
Form SU'U-lot Version Oct. 31, 2013 Pauc 5 of 7
V III. CONSULTANT INFORMATION AND AUTHORIZATION
Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a
consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as
addressing requests for additional information).
Consulting Engineer.Homer S. Wade, PE
Consulting Firm: Borum, Wade, and Associates
Mailing Address:621 Eugene Court, Suite 100
City:Greensboro Siate:NC Zip; 27401
Phone: (336 1275-0471,ext118 Fax: (336 1 275-3719
Email: m wi Iliams®borum-wade.com
IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this
section)
5�{a�\c "v%^"" o^
I, (print or h/pe name of person listed in Contact Information, item 2a) biiehft , certify that I
own the property identified in this permit application, and thus give permission to (print or type name of person
listed in Contact Information, item 1a) Fred G. Mills, Sr. with (print or type name of organization listed in
Contact Information, item 1a) ,R1VER RuN 4PART4I6&&kto develop the project as currently proposed. A copy of
the lease agreement or pending property sales contract has been provided with the submittal, which indicates the
party responsible for the operation and maintenance of the stormwater system.
As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated
agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their
lease agreement, or pending sale, responsibility for compliance with the DEMLR Stormwater permit reverts back
to me, the property owner. As the property owner, it is my responsibility to notify DEMLR immediately and
submit a completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater
treatment facility without a valid permit. I understand that the operation of a stormwater treatment facility
without a valid permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement _
actioniiicludin th essment of ::,:vil enalties of up to $25,000 per day, pursuant to NCGS 143-215.6.
Signa e: Date: �2 3 13
I, 5fA Va 4 . t1. Vim; Ca^ o;r,A-S a Notary Public for the State of N or+h CAYo I � nniCounty of
do hereby certify that r'r % eol- m a n personally appeared
before me thisp�ay of �2c4 r n be r . aO I " and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal, (�-5n. Aa 1C. �, i fn CAA 00
SEAL
My commission expires Y— l a- I S
X. APPLICANT'S CERTIFICATION
1, (print or type mine of person listed to Contact Information, item Ia) Fred G. Mills Sr
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 therequired deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of the
applicable stormwater rules under 15A NCAC 21-I .1000 and any other applicable state stormwater requirements.
Signature: 1Daate: 1.1- S - -fib ) 73
I, '�bs�[ %/G✓anti , a Notary Public for tth/e State of /" C County of
(wu do hereby certify that personally appeared
fl n
before me this S day of and ackno%}filedgge the due exec on o the application for
a stormwater permit. Witness my hand and official seal, /z
JOSEPH R. WARENDA
NOTARY PUBLIC
Wake County, North Carolina
iNy Commission Expires 4I18J2018
Form SWU-101 Version Oct. 31, 2013
SEAL
My commission expires -2- 0 % a
Page 6 of 6
J,-*yyq .51 jqqarOL
A TtOic?,mmn'� �M
Permit No.
no be proNtletl6y OWO)
W A TFgOG
y r
WDENR
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 111) must be printed, filled out and submitted along with all of the required information.
G'. P,ROJECTdNFORMATION
/t
Project name
RIVER RUN
Contact person
MATT WILLIAMS
Phone number
336-275-0471
Date
1112212013
Drainage area number
1
II. DESIGN INFORMATION
Site Characteristics
Drainage area
198,634 ft'
Impervious area, post -development
99,317 1t'
%impervious
50.00
Design rainfall depth
1.5 in
Storage Volume: Non -SA Waters
Minimum volume required
It,
Volume provided
It
Storage Volume: SA Waters
1.5' mnoff volume
12,415 ft'
Pre -development 1-yr, 24-hr mnoff
7 rya
Post -development 1-yr, 24-hr mnoff
3 ft'
Minimum volume required
12,415 ft'
Volume provided 13,033 h'
Peak Flow Calculations
Is the prelpost control of the lyr 24hrstorm peak Dow required?
Y (Y or N)
1-yr, 24-hr rainfall depth
3.2 in
Rational C, pre -development
82.00 (unifless)
Rational C, post -development
88.50 (unidess)
Rainfall intensity: 1-yr, 24-hr storm
3.20 inthr OK
Pre -development 1-yr, 24-hr peak flow
7.00 ft'/sec
Post -development 1-yr, 24-hr peak now
3.00 ft'/sec
Pre/Post 1-yr, 24-hr peak Dow control
-4.00 ft'/sec
Elevations
Temporary pool elevation
26.00 fmsl
Permanent pool elevation
25.00 fmsl
SHWT elevation (approx. at the perm. pool elevation)
25.40 fmsl
Top of 10ft vegetated shelf elevation
25.50 fmsl
Bottom of 1 Oft vegetated shelf elevation
24.50 fmsl
Sediment cleanout, top elevation (bottom of pond)
20.50 fmsl
Sediment cleanout, bottom elevation
19.00 fmsl
Sediment storage provided
1.50 It
Is them additional volume stored above the state -required temp. pool?
N (Y or N)
Elevation of the top of the additional volume
fmsl
Form SW401-Wet Detention Basin-Re¢94118112
Parts I. a 11. Design Summary, Page 1 of 2
�, - Permit No.
i (to be povded by DWQ)
IL DESIGN.INF,ORMATION-
Surface Areas
Area, temporary pool
Area REQUIRED, permanent pool
SAIDA ratto
Area PROVIDED, permanent pool,
Area, bottom of 1Oft vegetated shelf, &,,set
Area, sediment cleanout, top elevation (bottom of pond), 4, cud
Volumes
Volume, temporary pool
Volume, permanent pool, dam
Volume, forebay (sum of forebays if more than one forebay)
Forebay %of permanent pool volume
SAIDA Table Data
Design TSS removal
Coastal SAIDA Table Used?
Mountain/Piedmont SAIDA Table Used?
SAIDA rate
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
Volume, permanent pool, �— c-
Area provided, permanent pool, Am„�
Average depth calculated
Average depth used in SAIDA, ¢., (Round to nearest 0.5ft)
Calculation option 2 used? (See Figure 10-2b)
Area provided, permanent pool, J,,,,,
Area, bottom of 10ff vegetated shelf, k ,hen
14,198 ft?
9,932 flz
5.00 limitless)
11,983 ft` OK
9,571 to
4,423 fle
13,033 tt'
36,866 113
12,147 ft'
32.9% %
90 %
Y (Y or N)
N (Y or N)
5.00 (unitless)
N (Y or N)
36,866 ft'
11,983 It`
ft
Y (Y or N)
11,983 W
9,571 fl`
Na
Insufficient forebay volume.
Need 3 It min.
Area, sediment cleanout, top elevation (bottom of pond), &t wed
4,423 fe
"Depth' (distance b/w bottom of 10ft shelf and top of sediment)
4.00 It
Average depth calculated
3.74 it OK
Average depth used in SAIDA, ¢., (Round to down to nearest 0.511)
3.5 it OK
Drawdom Calculations
Drawdown through onfice?
Y (Y or N)
Diameter of orifice (if circular)
2.00 in
Area of odfce (if -non -circular)
in'
Coefficient of discharge (Co)
0.60 (unitless)
Driving head (Ft)
1.00 It
Drawdown through weir?
(Y or N)
Weir type
(unitess)
Coefficient of discharge (Cr)
(unitess)
Length of weir (L)
It
Driving head (H)
ft
Pre -development 1-yr, 24-hr peak Flow
7.00 fl3/sec
Post -development 1-yr, 24-hr peak Flow
3.00 ft'/sec
Storage volume discharge rate (through discharge orifice or weir)
0.10 ft/sec
Storage volume drawdown Ome
2.90 days OK, draws down in 2-5 days.
Additional Information
Vegetated side slopes
3 :1
OK
Vegetated shelf slope
10 :1
OK
Vegetated shelf width
10.0 It
OK
Length of flowpath to width ratio
3 :1
OK
Length to width ratio
1.5 :1
OK
Trash rack for overflow & orifice?
Y (Y or N)
OK
Freeboard provided
1.0 It
OK
Vegetated filter provided?
N (Y or N)
OK
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 is:
e� lZ-(mil-3
Form SW401-Wet Detention Basin-Rev.9.4118/12
Parts I. & II. Design Summary, Page 2 of 2
l` 1-
do,
EXPREEXPRESS Permit Number: S W V l3l ZoG
SS (to he prorided by UIVQ)
DEC 13 2013 Drainage Area Number:
Wet Detention Basin Operation and Maintenance Agreement
NC ®ERR
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 ® does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not 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:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
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
Ions.
approximately six inches.
Form SW401-Wet Detention Basin O&M-Rev.4
Page 1 of 4
Permit Number:
(to be provided by DIVA)
Drainage Area Number:
BMP element:
Potentialproblem:
How 1 will remediate theproblem:
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 problems 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 spraying.
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 plants 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
50% of the area.
Consult a professional to remove
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 O&M-Rev.4
Page 2 of 4
Permit Number:
(to be provided by DB'Q)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
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 repair. if applicable)
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 4 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 4 feet in the forebay, the sediment shall
be removed.
Sediment Removal
Bottom
BASIN DIAGRAM
(fill in the blanks)
20.5 Pe manen'
------------------ Volume
19 ft Min.
Sediment
Storage
FOREBAY
Permanent Pool Elevation 25
Sediment Removal Elevation 20.5 Volume
Bottom Elevation 19.5 1 I -It
MAIN POND
Storage
Form SW401-Wet Detention Basin O&M-Rev.4
Page 3 of 4
Permit Number:
(to be provided b), DIVQ)
acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:River Run Apartments
BMP drainage area number: Wet Detention Pond #1
Print name:
Address:
Phone:919-755-9155
Signature:
Date: l.'a--.z-a013
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, J05 el%1 L O2. 2✓a/c a Notary Public for the State of
—.A/C_ County of %lc �� do hereby certify that
i �,L ✓� t ��j �,�. personally appeared before me this
day of Der , _0I3 , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
JOSEPH R. WARENDA
NOTARY PUBLIC
Wake County, North Carolina
MY Commission Expires 4/1812018
SEAL
My commission expires
Form SW401-Wet Detention Basin O&M-Rev.4
Page 4 of 4
WET DETENTION POND ANALYSIS -ALL RULES
FILENAME:
S:IWQSISTORMWATER\EXCELSPREADSHEETSIPOND1131206
PROJECT#:SW7
REVIEWER:
_
Initial Run Date;71�7 _
PROJECT NAME:
;River Run Apartments _
_ Last modified 19-Dec-13
Receiving Stream:
icrawford Creek
Class:
Drainage Basin:
,Tar-Pam
_
��CSC+' —NSW
Within 112 mile L_JY or N
S
Index No. ;29.6-2
ODrainage Area
Rules- "2008" or "Ph2"
feet DA Area 4.56 acres
Buildings
36422.00 square feet
1
user input rec
Street
49629.00 square feet
0.98
formula
SW
13266.00:square feet
0.95
Future
squarefeet
-
Offsite
square feet
77
Other
'square feet
BUA at diff. DS® square feet
TOTAL
99317.00 square feet
SURFACE AREA CALCULATION (with added DA and BUA at different design stone)
Overall % Impervious
L 50.00010
SA/DA Ratio
5.00°/s
Average Design Depth
3.5 feet
Req. SA
9932 sf
TSS, 85 or 90:
90 %
Prov. SA
11983 sf
Drainage AreaG
BUA
Post development Rv=
Old BUA Design Storm
Old BUA Design Volume
1.5" New BUA Design Storm Volume
1 yr. 24 hour preciphadon depth (inches)
Predevelopment Rv value
1 yr. 24 hr. Pre -development volume
1 yr. 24 hr. Post -development volume
2008 Design Volume 12415 cubic feet
Phase 2 Design Volume 12415 cubic feet
Average Head
Flow Q2, cfs
Flow 05, ds
No. of Orifices
Diameter, inches
Drawdown =
1 yr 24 hr intensity, in/hr
Runoff Coefficient
1 yr 24 hr peak Q
Orifice flow<1yr24hr 7
sf
sf
unitless
inches
from NOAA chart
Use 0.05 it no existing BUA
cubic feet
cubic feet
02 Area 4 3.89 sq. inches
Q5 Area 1.55 sq. inches
Orifice Area 3.14 1sq. inches
or weir H x W in x
lays V of end contractions, N =
JOAA chart ® discharge coefficient, C
hitless Effective weir length, L =
in