SW3161202_CURRENT PERMIT_20200723

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

ROY COOPER
Gnaerna
MICHAEL S. REGAN
.Secrercry
BRI,AN WRENN
ile.ing Di! a to,
David Cutherbertson
Carolina Development, Services, LLC
2627 Breckenridge Center Drive
Monroe, NC 28110
NORTH CAROL WA
Environmental Quality
July 23, 2020
Subject: Stormwater Permit No. SW3170102
Broadmoor
Marvin, NC
Union County
Dear Mr. Cutherbertson:
The Division of Energy, Mineral and Land Resources (DEMLR), received a complete Stormwater
Management Permit Application for the subject project on June 2, 2020. Staff review of the plans and
specifications has determined that the project, as proposed, will comply with the Stormwater Regulations
set forth in Title 15A NCAC 02H .1000. We are forwarding Permit No. SW3170102, dated July 22, 2020,
for the construction, operation and maintenance of the subject project and the stormwater system. This
permit shall be effective from the date of issuance until February 13, 2025, or until rescinded and shall be
subject to the conditions and limitations as specified therein, and does not supersede any other agency
permit that may be required.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to
request an adjudicatory hearing by filing a written petition with the Office of Administrative Hearings
(OAH). The written petition must conform to Chapter 150B of the North Carolina General Statutes. Per
NCGS 143-215(e) the petition must be filed with the OAH within thirty (30) days of receipt of this
permit. You should contact the OAH with all questions regarding the filing fee (if a filing fee is required)
and/or the details of the filing process at 6714 Mail Service Center, Raleigh, NC 27699-6714, or via
telephone at 919-431-3000, or visit their website at www.NCOAH.com. Unless such demands are made
this permit shall be final and binding.
This project will be kept on file at the Mooresville Regional Office. If you have any questions, or need
additional information concerning this matter, please contact Jim Farkas at [phone]; or
[e-mail].
Sincerely,
�— --- — ,r
for Brian Wrenn,
Director, Division of Energy, Mineral and Land Resources
cc: SW3170102 File, Mooresville Regional Office
cc: Matthew Kirchner — Eagle Engineering Inc. ([e-mail])
� `per h (,arolina �epm'mer; f grvironmen rlu i r D si m u. tner= 411ne I::nd - nd netinuree,
•/� Nryi h tiulun.. � 5rreer I 1 Alnil ca., c enter '. R � . h, kerth Cr _I'n r _ >a9 u1�

State Stormwater Permit
Permit No. SW3170102
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT QUALITY
STATE STORMWATER MANAGEMENT PERMIT
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
Carolina Development Services, LLC
for
Broadmoor
1614 Waxhaw Marvin Road, Mavin, NC
Union County
FOR THE
construction, operation and maintenance of each Stormwater Control Measures (SCM) in
compliance with the provisions of 15A NCAC 02H .1000 (hereafter referred to as the
"stormwater rules') and the approved stormwater management plans, specifications and
other supporting data as on file with and approved by the State and considered a part of
this permit.
This permit shall be effective from the date of issuance until February 13, 2025, 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.
Each SCM is approved for the management of stormwater runoff as described in the
application documents and as shown on the approved plans.
All stormwater collection and treatment systems must be located within a 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.
The runoff from all built -upon area within the permitted drainage area of this project
must be directed into the SCMs.
The built -upon areas associated with this project shall be located at least 30 feet
landward of all perennial and intermittent surface waters.
Page 1 of 4

State Stormwater Permit
Permit No. SW3170102 :
6. Each builder and/or property owner must have plans for individual lots approved,
knowing and understanding the BUA limit and the prohibition against excessive
piping, how to size the driveway pipe, knowing where the buffer is on that lot,
knowing where the drainage easements are and the expectation to keep existing
swales open, and ensuring roof gutters and impervious surfaces are disconnected to
the maximum extent technically feasible.
II. SCHEDULE OF COMPLIANCE
During construction, erosion shall be kept to a minimum and any eroded areas of the
system will be repaired immediately.
The permittee shall at all time provide the operation and maintenance necessary to
assure every SCM 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 re -vegetation of slopes and the filter strip.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans.
f. Debris removal and unclogging of all drainage structures, level spreader, filter
media, planting media, underdrains, catch basins and piping.
g. Access to the cell and outlet structure must be available at all times.
Records of maintenance activities must be kept for each SCM. The reports will
indicate the date, activity, name of person performing the work and what actions
were taken. The owner shall keep maintenance records and these shall be available
upon request by the party responsible for enforcing the stormwater program under
which the SCMs were approved.
4. The permittee shall submit an annual summary report of the maintenance and
inspection records for each SCM. The report shall summarize the inspection dates,
results of the inspections, and the maintenance work performed at each inspection.
Each SCM shall be constructed in accordance with the approved plans and
specifications, the conditions of this permit, and with other supporting data.
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 each SCM certifying that each 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.
SCMs impacted by sedimentation and erosion control during the construction phase
shall be cleaned out and converted to its approved design state.
Page 2 of 4

State Stormwater Permit
Permit No. SW3170102
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 was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for a minimum of eight years from the date of the completion of
construction.
10. 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.
11. Plats for residential lots that contain SCMs shall include: the specific location of the
SCM on the lot; a typical detail for SCM to be used, and a note that the SCM on the
property has been required to meet stormwater regulations and that the property
owner may be subject to enforcement procedures as set forth in G.S. 143, Article 21
if the SCM is removed, relocated, or altered without prior approval.
12. The O&M Agreement shall be referenced on the final plat and shall be recorded with
the County Register of Deeds upon final plat approval. If no subdivision plat is
recorded for the site, then the O&M Agreement shall be recorded with the county
Register of Deeds so as to appear in the chain of title of all subsequent purchasers.
III�d�.I�:7_1�Ki7a�7��[d.69
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 signed by both parties, to the State,
accompanied by the supporting documentation. 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 a request to transfer the permit.
Page 3 of 4

State Stormwater Permit
Permit No. SW3170102 ,-
Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the State, 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 DEQ 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 in writing of any name, ownership or mailing
address changes at least 30 days prior to making such changes.
12. The permittee shall submit a renewal request with all required forms and
documentation at least 180 days prior to the expiration date of this permit.
Permit issued this the 22"d day of July 2020.
for Brian Wrenn
Director, Division of Energy, Mineral, and Land Resources
Page 4 of 4

State Stormwater Permit
Permit No. SW3170102
Carolina Development Services, LLC
Broadmoor
Union 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 Name)
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.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Submit to: NCDEQ-DEMLR Mooresville Regional Office
610 E. Center Ave., Ste. 301
Mooresville, NC 28115
Page 1 of 1

Marvin. NC UNION County
Andrew Martin, ESP Associates P.A.
Broadmoor �pf
Marvin , NC UNION County -�----Yi
.. Andrew Martin, ESP Associates P.A. NCDENK
Type of
Only complete application packages will be accepted and reviewed. A complete package includes all of the items in the checklist
below. Add any comments, and indicate the page or plan sheet number where the following Information can be found. Please
indicate that you have provided the following required information by Initialing in the space provided next to each Item.
;r„F'� >rfi;'„�u��`.k`'.�`:s x-1�:�'L^_s�, r�� '�;t..,w)�zP2rt:I:`;Submittal;Cfieckllstzt.,'��*-�•_r,`-� �`��-�s,`�., ,+tb,2�'ic:S+�.'vin��'
Item
Notes l Comments Initials
1 Original and one copy of this application form (all worksheets) and the permit
DS
application fee. For applications submitted to the DEMUR regular permitting
program, the fee is $505 payable to NCDENR. For Express Review, click on the
link below for information and fee schedule. Contact the appropriate regional
office Express Review Coordinator to schedule the required pre -application
meefine.
Click here for Express Permitlina Info
2 A USGS map identifying the site location. If the receiving stream is reported as
Receiving stream Caw Branch Is
DS
class SA a the receiving stream drains to and is within 1f2 mile of SA waters,
class C
then Include the 1/2 mile radius on the map.
3 A copy of the most current property deed.
DS
4 Two copies of additional calculations (as needed). Sealed, signed and dated.
DS
5 Two sets of seated, signed. & dated full-sized plans of the entire site at a
C0.0
DS
readable scale, including:
a. Project name, engineer and firth, revision number and dales.
C0.0
DS
b. Location map with street names and SR numbers, legend, north arrow,
C2.0 Site Plans
DS
scale.
c. Dimensioned properylproject boundary with bearings & distances.
C2.1 - C2.7
DS
d. The boundaries of all surface waters, regulatory flood zones, and protected
C2.0 and C6.0
DS
riparian buffers a a note on the plans that none exist.
e. The boundaries of all vegetated or protected riparian buffers.
C2.0 and C6.0
DS
I. Site layout shoMng all built -upon areas, drainage features, stormwater
C2.0-C2.7
DS
collection systems (inlets, outlets, sweles. ripe elevations, slopes and
diameters), and SCMs at ultimate bulld-out.
g. Existing contours, proposed contours, spot elevations, and finished floor
C3.0- C3.7 Grading Plans
DS
elevations.
h. Existing drainage (including off -site), drainage easements, pipe sizes,
04.0-C4.13
DS
runoff calculations.
I. Drainage area boundaries (included in the main set of plans. not as a
C3.6
OS
separate document).
j. Existing and proposed maintenance access routes, utility easements,
C0.0, C2.0 - C2.7
DS
drainage easements, public rights -of -way etc.
k. A construction sequence that shows how the SCMs will be protected from
C6.0 - C6.15
OS
sediment until the entire drainage area is stabilized.
6 Two sets of sealed, signed, & dated full-sized plan details of each SCM (or
DS
typical 4 appropriate) in both plan view and aess-seclkm at a scale of 1" = 30' or
larger, including:
a. Dimensions. side slopes- length to width ratios and elevations with a
C4.0 - C4.13, C6.16 • C6.19
DS
benchmark for clean -out if appropriate.
to. All applicable conveyance devices, Including: bypass structure,
C6.1 - C6.19
DS
pretreatment area, flow distribution device, underdrains, outlet device, outlet
dissipater and level spreader.
c. A table of elevations, incremental volumes and accumulated volumes (f
NIA
DS
applicable).
d. Specifications for applicable materials, such as planting media, aggregate,
C6.16. C6.19
DS
sod, underdrains, outlet devices, etc.
STORM-EZ
Version 1.4
Application
ifl 9/2017
Page 1 of 13

Marvin , NC UNION County
Andrew Martin. ESP Associates P.A.
L
1y
L%
A
7 Two sealed, signed, & dated planting plans for each SCM (or typical) at a scale
1_1.0 - L1.7
DS
of 1' = 20' or larger, as applicable, including:
a. The locations of each species and a planting detail.
L1.0- Ll.7
DS
b. A table summarizing the size, spacing and total quantity of each plant
L1,0- L1.7
D$
species that should be used.
c. The source nursery for the plants,
L1.0 -L1.7
DS
d. A one-time fertilizer specification to establish plants If necessary.
L1.0 - L1.7
DS
8 A soils report based on field evaluation indicating the SHWT elevations within
SWPPP package
DS
the footprints of the proposed SCM(s). Provide a map of the boring locations
with the existing elevations and boring logs. For infiltration SCMs, the report
shall include the soil type, infiltration rate and method for determining the
infiltration rate. Soils information shall be signed and sealed by a licensed soil
9 A copy of the signed and notarized operation and maintenance (O & M)
DS
agreement.
10 A copy of the proposed deed restrictions protecting the SCMs and limiting the
us
built -upon area so that It does not exceed the capacity of the SCM(s) or the high
density Ihreshold (as applicable).
NCDENR Deed Restriction Forms
11 For corporations and limited liability corporations (LLC): Documentation from the
DS
NC Sewelary of State or other official documentation, which supports the titles
and posilions held by the persons listed in the Contact Information section. The
corporation or LLC must be listed as an active curwation in good standing with
the NC Secretary of State, otherwise the application will be returned.
NC Dept. of the Secretary of State
12 A copy of the lease agreement or pending sales agreement if app
IDS
STORM-EZ
Version 1.4
Application
1119/2017
Page 2 of 13

Marvin , NC UNION County
Andrew Martin. ESP Associates P.A.
�, 5f ',fir-,��^�.l�, ;,, ?�"' ,, ,r, �: Part 11 General'f?i•'_oject and-AjPllcant tnfoimatlan�'_"+.>��"'�`"�a�� ,.;r„ , i�.,�.r, ,, ;;',
Project Name:
Broadmoor
Date:
29-Oec-76
Project Street Address:
_
1614 Waxhaw Marvin Rd
Lac
City.
Marvin Zip: 28773
Lang:
Directions to Project:
County:
UNION
(from nearest inlersectlon)
NON -COASTAL
Project Applicant:
Carolina Development Services LLC and Broadmoor Holdings LLC
(identify the corporation, organization, property owner, designated
government official, etc. which owns the oroiect.)
Ovmer / Signing Offcal's Name:
Title:
Address'
City.
State:
Zip:
Phone:
P0k
Email
Carolina Development Services: LLC - David CbtherbensOn
Man er,
2627 Brackenridge Centre Drive—
Monrce-7
NC--
28110-:;�:7
7047741964
mccall carolinaidevelopment:,com7
Status of applicant Developer Complete contact information forproperty owner below.
River Basin:FCr�k
Receiving Stream(s):Stream Classics):Surface Water Area (ac):Coastal we8antl area (ac):Total property area (ac):Trial project area (ec): 86.12
Goaislcharameristics: YES Volume Matching (LID) NO Drains to an offsite stormwater system
YES Low Density YES Within 575'ef Saltwater ORW
High Density YES Within 5 miles of a public airport
Briefly summarize how the stormwater runt( will be treated:
Storm water runoff from the right of way will be treated for water quality with sand filters and then directed to detention basins
The storm water funog from the lots will be treated for wafer quality with disconected impervious, swales and than directed to
Status of construction: Not Started
Other permits needed: YES Sedimentation & emsion central 404 Permit 1401 Certification
CAMA Major Permit Isolated Wetlands Permit
Tlueatened & Endangered Species rEINPDES Indusuial Stonowater Permit
If an application for this project has been previously returned, provide the original project number and previous name of the project:
Provide the permit
If claiming vested rights, then identify (and attach) the supporting documents and approval dates:
Approval of a permit
development plan or PUD Approval dale:
Valid building permit Issue date:
FE10ther Date:
Not Started
Point of Contact:
STORM-PZ
Version 1.4 Application
Phone number.0
1/19/2017
Page 3 of 13

Marvin . NC UNION County
Andrew Martin, ESP Associates PA.
(Note: Person/Organization noted above maybe contacted for additional project information if applicant
cannot be reached.)
Complete this section If you wish to designate authority to another Individual or firm so that they may provide information on your
behalf for this project (such as addressing requests far additional information).
Firm:1 ESP Associates PA.
Street address: 3475 Lakemom Blvd.
City, State, 21p: Fort Mill, SC 29708
Phone number(G): 803.802.2440
STORM-EZ 1/19/2017
Version 1A Application Page 4 of 13

Marvin , NC UNION County
Andrew Martin, ESP Associates P.A.
I, (the Property Owner listed above), - f�{hbHbwn the property identified
in this permit application and thus give pemlisslon to (Ihe Applicant). "� r i
to develop the project as currently proposed. A copy of the lease agreement or pen ing property sales contrail has been provided with this �1�-
submitlal, which Indicates the party responsible for the operation and maintenance of the stormwraler system.
As the legal property owner, I acknowledge, understand and agree by my signature below, that if my designated agent (listed as the Appfranl
above) dissolves his/her company or cancelsfdefoults on his/her 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 contact DEMLR immediately
and submit a completed Name/Ownership Change Form within 30 days: otherwise, I will be oeprating a stornater treatment facility without a
valid permit. I understand th N opt elfon of a stormwaler treatment facility without a valid permit is a violation of NC General Statute 143.
215.1 antl may result in opnate nforcement action inducting the assessment of civil penalties up to 525,000 per day, pursuant to NCGS
143-215.6.
In. ture: `.`_...__.. Date: v.0 �7
a Notary
personally appeared before me this fL_ dayof
and acknowledge the due execution of ic'
Witness my hand and official seal,
�oaoTARy��-
,C, °OBLIG ,0. My commission expires �� 1 1 f
Seal nr _ ._
I, (the Applicant listed above), G,&VCUk-4A Va[ J 4-h r1�AIffy that the information included
an this permit applicant form is, to the best of my knowledge, correct and that the project will be constructed In conformance with the approved
plans. that the required deed rest Sion otective covenants will be recorded, and that the proposed project complies with the
requirements of 6�applimb.i ataist water rules and requirements.
Signature:
personally appeared before me this:
and acknowledge the due execution
Witness my handaod official seal. '
.AZ 0 ,fARy�
Seal „_ -,,.
STORM-EZ
Version 1.4
Date:
Public
expires
Application
1/192017
Page 5 of 13

Broadmoor ®■■A
Marvin , NC UNION County A\•
6 Catawba River Basin NCDENR
RAINFALL & CALCULATION DATA
Project County: UNION
Project City: I Marvin
Rainfall Source: I Charlotte
Loaded Rainfall:
Charlotte
Design Storm:
P90
Discrete SCS Method,
Calculation Method
Pre - Post
(Minimum Design Storm = P90 for non -SA, 1-yr, 24-hr for SA)
Storm Event
Depth
(inches)
First Flush / WOV
#N/A
�1290)♦
1.40
P95
1.86
1-yr, 24-hr
2.78
2- r, 24-hr
3.36
10-yr, 24-hr
4.89
25-yr, 24-hr
5.80
50-yr, 24-hr
6.53
100-yr, 24-hr
7.27
NOTE: Please use the Storm-EZ calculation sheets to document the stormwater design
and create the O&M Agreement. Highlighted Storm is Design Storm
PROJECT INFORMATION
Total Property Area
86.13
acres
Total Coastal Wetlands Area
0.00
acres
Total Surface Water Area
0,00
acres
Complete the breakdown of impervious area for the project
Basin Information
Entire Site
Receiving Stream name
Sixmile Creek
Stream Class
Catawba
Stream Index Number
11-138-3
Total Draina eArea
2,909,528
On -Site Drainage Area (so
2.909,528
Offsite Drainage Areas
0
Proposed Impervious Areas
842,295
Im ervious Area total
29
Impervious Surface Area
Entire Site
On -Site Buildin s/Lots s
620,000
On -Site Streets s
164,970
On -Site Parkin s
0
On -Site Sidewalks s
57,325
Other On -Site s
Future s
Off -site s
ExistingBUA s
Total
842,295
Total lm ervious Area 19.34 acres
Pro ect % impervious area 29
ALL AREAS ARE IN SQUARE FEET
Use Worksheet Data? No
STORM-EZ 1/5/2017
Version 1.4 Project Data Page 6 of 21

Broadmoor
Marvin , NC UNION County ©�
Catawba River Basin Mill
Drainage Area U = of =
PRE -DEVELOPMENT LAND USE CALCULATIONS
Pre -Development Land Use: Area
HSG
Lend -use
CN
et
acres
%
B
Woods
55
381.585
876
10,17%
B
Pasture orOpen S ace
61
1,364,299
31,32
36.36%
C
Pasture or Open Sace
74
147,233
3,38
3.92%
D
Pasture or Opens ace
80
1,014078
2328
2703%
D
Pasture a, OpenS ace
80
844,62B
1939.
22.51%
Sumotaf
3,751823
86.13
Note: Enter BUA Draining to
User Defined Drainage
Existing Permeable Pavement (Infiltration):
SCM If Descri lion
1001
Existing Green Roofs:
SCM k
HSG
Pavement Area
Addltional BUA
Soil
Infiltrates
n Rate
Gravel Vaitl
Space
Total
Gravel
Depth
Ohio
Dia,
Odfice
Height
BUA%
Has Synthetic
Liners
D.S.
BMP
(si)
(s)
Onmr)
(%)
(in)
Ohl
(In)
SCMII I Notes
000
From Land Use Tables:
3751 823
B6.13
acres
Permeable Pavement Additional BUA:
0
Green Roofs:
0
Preserved Seneca Waters 8 Non -Coastal Wetlands:
986.13.
Preserved Coastal Wetlands:
Total Site Area:
3,751,823
Pre -Development SCMs:
soma SCM T a
200 ^No BMP"
WO Volume
Provided
Drainage
Area
Downstream
SCM
Im
EP7,
(s
s
cfi
HSG
0
3751823
B
Rainfall Volume=
12058 acre -inches =
437,713
of
Runoff Reduction Components:
Natural Infiltration B ET=
-110.01 acre -inches =
-399,342
d
Disconnected Impervious Surfaces =
0.00 acroexhes =
0
cf
SCM Infiltration=
0. 00 acre- inches =
0
cf
Permeable Pavement Infiltration =
0.00 acre -inches =
o
cf
Green Roof ET=
0.00 acre -inches =
0
cf
Post Filtration Discharge =
0.00 acre -Inches =
0
cf
Total Runoff Reduction =
-110.01 acre -Inches =
-399,342
of
SCM Treatment:
Treated SCM Outflow= 0.00 acre -inches = 0 of
Untreated Surface Rdraft = 10.67 acre -Inches 38,371 of
The Pre -Development project area contains 0 of of built upon area, resulting in an overall density of 0%.
STORM-EZ
Version 1.4
Pre -Development
1/52017
Page 7 of 21

dmoor
BNC UNION
Marvin, NC UNION County ®����
Catawba River Basin NCDENR
Drainage Area # 1 of 1
POST -DEVELOPMENT LAND USE CALCULATIONS
Permeable Pavement:
TOVi
Pavement Area
Additional BOA
Infiltration
VoiE space
Oraval
xas
.'hies
.fines
Dovm-
Infiltration
Detention
x5G
Pvml Type
fete
S.P.
$yrowne
Dio
Hs,.hl
sneam
line(!
0CM
CM1etk
LMCY
ist)
(acres)
(ef)
(aoesl
(in")
(%I
(a)
O
(a)
000
1 0.
1
1 No
ltatreM3 I on—anon,
I SCM P Comments
R... 10r 41 L-a/[upepsr, .,Lrer, WW an led an aPeeesf:
Lot Area POI LOLL Max lose l Let I
is top, WmGi IL°I Open Sgce/LOI Avp Lo[Sue'
(aft (ed 1%0 (Mg (s0
2211599 50.]] 62 10,000 26W 25511 J56]l a(
Rosalind
Land Use:
Area
La�Use
M
CN
(an
%
L°hlEsrlpiRAYeMppenSpace)
10
NN
366f%
Loh(EVWeig FVN aandOpen Space)
00]
69.331
L59
185%
M0H
Lot (picturing RAY and Open Space)
e50
1068956
24 5e
2069%
Open Space(Mana9ed Oven Specs)
]d0
I,JP,929
0026
JS.IJ%
Impervious
900
222,395
lm(
593%
Ppmeade Pavement -RUA:
WA
0
000
000%
Green Rwh:
NIA
0
000
000%
Sut-Tolal'.
3.751,623
e6.13
10.00%
Lend ErcludM, or Partlall Esclutled, M1om Volume C1cu1albn5: al.te
SWace Wafers& NonCoaslal We6aMs: 0 OW
eoenul Wetlarde'. 0 000
total SXe Area: J,351,82] 86.1a
Rainfall Volume= 120.5v eOaY26es 41s],]10
Runoff Reduction Components:
Residential Lot Data Summary:
Woets - 0 at
Open Sruce=1591599 sl
Impervius=620000 sf
Nalural lnfilbatio08 ET=
-8986 ac'e."Sas=
326, 105
d
Dewnnected Impervious Surfaces=
647acreincnes =
-23a69
ct
SCM mfilirspOn =
376 acieirene,
-13,632
d
Permeable Pavement Infiltration =
one .'re es
0
cl
Green Roo/ET=
aca acm.rcnas =
0
a
Post Filtrefion Discharge =
OW ecreinete a
Q,030
cf
Total Runoffa Action=
.10064 acre-sches
STORM£Z 1150017
Vassar 1 4 Pa. Donelopmenl Page 8 of 21

Broadmoor
Marvin, NC UNION County
Catawba River Basin NCDENR
Drainage Areak 1 of 1
POST -DEVELOPMENT IAND USE CALCULATIONS
Treated SCM Outflow= -mu ene.neaea = 31,693
Untreated Surrace Runoff = 9.ao ac .ncnoa = 3a,496 cf
Pre- eveio r ent Runoff = 105T acw noo s W.371 d
OoSeoence= 4.07 acreancnea= -3,875 cf
TM Pos4Pevebpment p oj¢i area cmpins 842D5 sf of buill upon an; resulting m an overall density of 22.4M.
STORM U 1/54017
vvsan 1A Past Devebpmenl Page 9 of 21

Broadmoor
Marvin, NC ANION County ®��
a.wba River eaain NCDENR
Oreinage Areas 1 of 1
PROPOSED SIPS a STRUCTURAL RUNOFF VOLUME CONTROLS
Enter only runoff volume below that will be infiltrated or drawn down over 2 to 5 days. Additional volume provided In devices should not be entered In this worksheet.
Oravedown time requirement applies to all storm events.
o"f lmpeMo- o :I
Area ]remaU
Im Mw, 1.1 Total %. Toul u.,a, .... nMlaw
Impervbo, 0.rrlov, Volume mSCM kol
.c
,b
1W
FMb PmE I
o v seM FM
9
1..$
a],.
13%
3X
Cm
T6
110.
11%0
331
1.
se S
159%
]01
Fee, in Pw 2
0, S-o F.W
9,59]
..1
11
M
1.
7m
1119
1119
37
)3
6A
IBS%
Tin
mPpM3
Open Urn Flab
i65,W2
]II]
173
306
3116
.1
.`wo.
OwS Few
0
I5]
i Sam
5%
5%
31)8
]m
Ned
5695
1.
"1
2101
1)M
)y
Fee'.."
OT.. FY
0
1A010
Il3]5
1%
0%
re
)m
1m
Im]
e6
1.
)ID
I6e%
M6
Ppg1
D,.—
0
.1TR
ne
1%
2�
IA
Im
II})
0
5535
re
Ire
Ppy]
Ory G.Mnm
Sarno
oe
3%
le51rz
See
]Im
o
o
1.
.z
707
Pug9
Ory o.untin
85.500
0%
a
AIrl
G]
5N1
Me
1W
Ford.
on, oYmlm
`A.`81
05
H
rur.
or,
I.,
les
o
1.
]z
>.
S,v&eb Pudl
Cum Sw
S
No No
ne
11%
1.7
]C6
915
21M
.11
IV%
SmMs b PoW2
Gm, Svnb
G
1PS,P8
0%
I%
3]B
M
ime
5D]
M2
0
nor
1.
711
SVNm m Pnn63
Grvv ewJe
0
HI.S
0%
M
mB
N]
ase
]Im
]W
o
2511
1.
712
a 0Pnv4
Gnr ewb
S
Y5,]P1
OX
II%
2121
)m
3]J0
12041
3e59
0
25)3
1.
In
pbSwls Pvdl
Oemv,[1
a
un,CD
1.
o%
no
1.)25
1.)26
M26
0
o
IWX
SvM Patl2,e.1n..�na
rypt
B
?9,Cm
5%
O%
]10
HII
N.1
IN%
5
.,.aPvd]
Owmen
B
59, `.W
]%
LX
)11
5)02
5]el
259]
0
0
IM
110
O lrvee Pm6<
01
B
.1.1.
11X
0%
T12
BFPo
.
.0]]
0
o
IW%
11)
Olmv'.
0
28]31]
34%
oe
269f
IDb.
0ce9
0
0
IPJ%
81229 of av xx xNeM 63 Yopn Wc,
voreenOro81Y195YKKMvnpnlwf YcorrBn..evawf
bltl eF I- ore, ,ree
Rainfall Volume=
1AS9 --le.
O3])13
d
Runoff Reduction Compone e,
Natural Usnralpn& ET=
.�M ,vwru
-IDfiJBS
cl
pseonnedeo Inner ouSAree•
.11,vnncMa
-11.Iro
c
SCM InrWo".n•
A,, acmncnea
].eR
c
PenneeMe Pove.. InfiIXmfion=
O.m
o
c
(.Rcn RmI ET =
oW acre:mi.•a •
o
Po#F➢rafkan Dyrtyrye
LSB acreo.[Ma •
Z.
[/
Tofal Runoff Reduction •
no —e ncbu •
-365,324
cf
SCM TmU rent.
Treafed SCM OuMovv
-N 11•cren.n.0 •
-37,893
C
Untreated Surface Runoff •
In ror.1,0., •
U,496
tf
PlnOevelopment Runoff=
1. Sl veirina
3e,]T1
d
difference=
a0)rcmncbn
-3,8)5
a
"BASIC TREATMENT MET"
&6 at. lmperlouaorras 04% or 01.1 lmpwlo..) Is dlsoNvie,eve. Val un.W ronoff IN. oMw Impervious arcs, A3890 d
Tie PonCivelnpmem pen- .— conl,ln,.21.1.1 of .111.,n.........nne l� an o,e„II 6en,Ily oI2S e6l.
mire,:
w,r.iry: PS Swb. lie ID12-31p,CmmNrY BMP,MM ForwewMhewYv,Svev,g6. 5 ib, ApAE e vore, ce—nowlRM14,I oe me—xID.YYvtrn 510.v Wupcud
,0vb6vea. Content NCOwO Reenel p e, WroaW ylw.
me tiP wine va a.N as gab ,mr..Wa1a.mYu[Yt vaM1.da>NWab.bavvImee lord mtie ub8bs. TI. wbV eb48,v. be. in enninmOw ap�1Y
Sr0Ri1.Fz IIP
Vawnl< Slormanpr Conbda page to a o131

oor
Broatl ION
*-
Gtawea Rorer Basin NCDENR
Dra�naBe Areap t nr 1
FATE OF SUUN IILL
BASIC TREATMENT SCALE
Compliance Stonn - P90 Stonn - Rainfall Depth = 1.4 inches
en:m T,enmem Tn,eenma
VOLUME MATCHING SCALE
P90 Storm - Rainfall De th m 1.4 Inches
FATE OF RAINFALL GRAPHS
Pre Development Fates
e••
rv4
so„
a
a
.OY
%
39N
an
to•
IMI1ntlm Wn�99n.1a T,a1NQtlMM1enaYq�•a YnuxYl Suae RM�.1d
.q•n•rgr...•e •ah.
a�qM•.-oe •n.erq�.r.•tn -ad
a l...,�.d...M.am.ae •a,..,eo.rt..pe.reu..oe
VON—Mxrmlq The:hula
Post Development Fates
S 904
3
EAf
taY
.nar.,.a nTvvTe T,.getlw•q.aw=w.. e.na uwvms.bw•n.uaNa
qq RMmbn CYplm.MMa
a q Mv,. unto
�hrn. ul. n.en•m la�ww.oa
iS-...gmo.larnaq,. atev a
• .oa eew,..e,--oa
STORM'FS U5QTT
W.'m t a IMrf4fi,yi Fp tt MYI

Broadmoor
e Marvin , NC UNION County ®�
to Catawba River Basin Ama
Drainage Area # 1 of 1 NCDENR
OF CONCENTRATION CALCULATIONS:
Pre -Development
Channel Flow:
Channel Flow:
Post Development
Channel Flow.
Channel Flow:
Pre -Development
Sheet Flow:
Sheet Flow:
Shallow Flow'
Shallow Flow:
ADDITIONAL CALCULATIONS
Length (ft)
Slope (ft/ft)
Surface Cover
T, (hrs)
86
0.0233
Grass
0.19
3fi7
0.0599
Unpaved
0.03
Length (ft)
Slope (fvft)
n-value
Flow Area
(it1)
Wetted Perimeter (ft)
T, (hrs)
382
0.06
0.03
23.8
17.8
1 0.01
Pre -development T.= 13.59 min Immlmum s,Ne�re:/
Sheet Flow.
Sheet Flow:
Shallow Flow:
Shallow Flow.
Length (ft)
Slope (tuft)
Surface Cover
T, (hrs)
40
0.04
Grass
0.08
100
0.08
Unpaved
0.01
Length (ft)
Slope (ft/ft)
n-value
ow rea
(it)
wetted Perimeter (ft)
T, (hrs)
400
0.05
0.03
23.3
17.8
0.01
Post -development T.= 5.94 min Irtnm;m„msmmme:/
Analysis Area = 86.13 Acres (0.135 sq. miles)
F.F.
I P90
P95
1-Yr
it
2-Yr
I 10-Yr
I 25-Yr
I 50-Yr
100-Yr
Rainfall in =
#N/A
i 1.40
1.86
2.78
3.36
i 4.69
1 5.80
1 6.53
].27
Q*w _
*N/A
1 0.12
0.27
0.69
1.02
2.04
2.73
3.30
3.90
CNae =
#N/A
74
73
72
72
71
71
71
71
Post Development
F.F.
P90
P95
1-Yr
2-Yr
10-Yr
25-Yr
50-Yr
100-Yr
Rainfall in =
#N/A
140
1.86
2.78
3.36
4.89
5.80
6.53
7.27
#NIA
0.07
0.21
0.30
0.43
0.82
1.19
1.59
2.04
CNae =
#N/A
1 71
1 71
1 62
59
53
52
52
52
Analysis Area = 86.13 Acres (0.135 sq. miles)
F.F. P90 P95 1-Yr 2-Yr 10-Yr I 25-Yr I 504r 100-Yr
Pre -Development
0' (in)
n)
Q (cfs)
Post Development
0' (in)
q, (csm/in)
#N/A
0.12
0.27
0.69
1.02
2.04
2.73
3.30
3.90
#NIA
0.07 -
0.21
0.43
0.82
1.19
1.59
2.04
#N/A
3fi0.21
4]546
427346
612.59
739.33
847.
"Note: To decrease Post -development peak pows- increase storage volume being tlrawtlown or in61t2fetl or lengthen posf-
STORM-EZ 1/5/2017
Version 1.4 Peak Flaw Calcs Page 12 of 21

Operation & Maintenance Agreement
Broadmoor
Marvin, NC UNION County
Prepared By: Andrew Martin, ESP Associates P.A.
Maintenance records shall be kept on the following BMP(s). This maintenance record shall be kept in a log in a known set locatio
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 pollutant removal efficiency of the BMP(s).
The BMP(s) on this project include (check all that apply &
Bioretention Cell
Quantity:
Dry Detention Basin
Quantity:
Grassed Swale
Quantity:
Green Roof
Quantity:
Infiltration Basin
Quantity:
Infiltration Trench
Quantity:
Level SpreaderNFS
Quantity:
Permeable Pavement
Quantity:
Proprietary System
Quantity:
Rainwater Harvesting
Quantity:
Sand Filter
Quantity:
Stormwater Wetland
Quantity:
Wet Detention Basin
Quantity:
Disconnected Impervious Area
Present:
Soil Amendments
Present:
0&M tables
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for
each BMP above, and attached O&M tables. 1 agree to notify NCDENR of any problems with the system or prior to any changes to
the system or responsible party.
' Responsible Party:
Title & Organization:
Street address:
City, state, zip:
Phone number(s):
Email:
Signature:
County of k '—N t f
personally appeared before me th,
acknowledge the due execution of
Witness my hand and official seal
(p R
�o "OTARy,'-
1.4
Carolina Development Services LLC - David Cutherbertson
Manager
2627 Breckonrid a Centre Dr
Monroe, NC 28110
704-774-1964
jmccall carolina-development.com
My commission expires
9&Ial hlauaaf
111912017
Page 6 of 13

Important maintenance procedures:
- The drainage area will be managed to reduce the sediment load to the dry extended detention basin.
- Immediately after the dry extended detention basin is established, the vegetation will be watered twice weekly if needed
until the plants become established (commonly six weeks).
- No portion of the dry extended detention pond will be fertilized after the first initial fertilization that is required to establish
the vegetation.
- The vegetation in and around the basin will be maintained at a height of approximately six inches.
If cracks, seepage, or woody vegetation is present, consult a dam safety expert for a dam inspection.
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.
After the dry detention basin is established, it will be inspected quarterly. Inspection activities shall be performed as follows and
any problems identified will be remediated immediately per the table below.
BMP element-,
Potential problem:
How to remediate the problem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the BMP
Areas of bare soil and/or
Regrade the soil if necessary to remove the gully, and then plant a
erosive gullies have formed.
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 approximately six inches.
long.
The inlet device
The pipe is clogged.
Unclog the pipe. Dispose of the sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale if necessary to smooth it over and provide erosion
swale.
control devices such as reinforced turf matting or riprap to avoid future
problems with erosion.
Stone verge is clogged or
Remove sediment and replace with clean stone.
covered in sediment (if
applicable).
The forebay
Trash/debris is present.
Remove the trash/debris.
Erosion has occurred or
Provide additional erosion protection such as reinforced turf matting or
riprap is displaced.
riprap if needed to prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by hand. If pesticides are used, wipe
them on the plants rather than spraying.
STORM-EZ 1119/2017
Version 1.4 O&M Manual Page 8 of 13

„�4'DrV.DetentiorrPond.M5intenance'Requirements:(continued) �y e_
BMP element:
Potential problem:
How to remediate the problem:
The main treatment area
Sediment has accumulated
Search for the source of the sediment and remedy the problem if
and reduced the depth to 75%
possible. Remove the sediment and dispose of it in a location where it
of the original design depth
will not cause impacts to streams or the BMP. Revegetate disturbed
(per pond design data sheet)
areas immediately with sod (preferred) or seed protected with securely
staked erosion mat.
Water is standing more than 5
Check outlet structure for clogging. If it is a design issue, consult an
days after a storm event.
appropriate professional.
Weeds and noxious plants
Remove the plants by hand or by wiping them with pesticide (do not
are growing in the main
spray).
treatment area.
The embankment
Shrubs or trees have started
Remove shrubs or trees immediately.
to grow on the embankment.
Grass cover is unhealthy or
Restore the health of the grass cover — consult a professional if
eroding.
necessary.
Signs of seepage on the
Consult a professional.
downstream face.
Evidence of muskrat or
Use traps to remove muskrats and consult a professional to remove
beaver activity is present.
beavers.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
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 Department of Environment and Natural
damage have occurred at the
Resources Regional Office.
outlet.
STORM-E2
1/1912017
Version 1.4 O&M Manual Page 9 of 13

EllS,Ory,,,DetentioiiPc)ydsDesign;SurnmarY .V6��.,
DRY POND ID FOREBAY MAIN POND
Pond 1 Temporary pool El: N/A Temporary Pool El:
Clean out depth: NIA Clean out depth:
Pretreatment Ves Sediment Storage El: NIA Sediment Storage El:
Has Vag. Filter Yes Bottom EI: N/A Bottom El:
624.57
1 624
624
623
DRY POND ID FOREBAY
Pond 2 Temporary Pool El:
Clean out depth:
Yes Sediment Storage El:
Veg. Filter Yes Bottom El:
MAIN POND
Temporary Pool El: 660.34
Clean out depth:Pretreatment
Sediment Storage El:Has
Bottom El: 669
WNA
DRY POND ID FOREBAY
Pond 3 Temporary Pool El:
Clean out depth:
Pretreatment Yes Sediment Storage El:
Has Veg. Filler Yes Bottom El:
NIA
MAIN POND
Temporary Pool El: 646.36
Clean out depth: 646
Sediment Storage El: 646
Bottom El: 645
N/A
N/A
NIA
DRY POND ID FOREBAY
Pond 4 Temporary Pool El:
Clean out depth:
Pretreatment Yes Sediment Storage El:
Has Veg. Filter I Yes Bottom El:
MAIN POND
Temporary Pool El:
Clean out depth:
Sediment Storage El:
Bottom El:
N/A
N/A
NIA
NIA
651.49
660
650
649
STORM-FZ 1/19/2017
Version 1.4 O&M Manual Page 10 of 13

Important maintenance procedures:
_ The drainage area of the grassed Swale will be carefully managed to reduce the sediment load to the grassed
Swale.
After the first-time fertilization to establish the grass in the Swale, fertilizer will not be applied to the grassed
Swale.
The grassed Swale will be inspected once a quarter. Records of operation 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.
BMP element:
Potential problem:
How to remediate the problem:
The perimeter of the BMP
Areas of bare soil and/or
Regrade the soil if necessary to remove the gully, and then plant a
erosive gullies have formed.
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 approximately six inches.
long.
The entire length of the
Trash/debris is present.
Remove the trash/debris.
Swale
Areas of bare soil and/or
Regrade the soil if necessary to remove the gully, and then resod (or
erosive gullies have formed.
plant with other appropriate species) and water until established.
Provide lime and a one-time fertilizer application.
Sediment covers the grass at
Remove sediment and dispose in an area that will not impact streams
the bottom of the Swale.
or BMPs. Resod if necessary.
Vegetation is too short or too
Maintain vegetation at a height of approximately six inches.
long.
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 Department of Environment and Natural
damage have occurred at the
Resources Regional Office.
outlet.
STORM-EZ 1/19/2017
Version 1.4 O&M Manual page 11 or 13

..,a-,`and€Filter.Maintenancet.Reguirements�'—?
Important maintenance procedures:
- The drainage area will be carefully managed to reduce the sediment load to the sand filter.
The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds six inches.
Once a year, sand media will be skimmed.
The sand filter media will be replaced whenever it fails to function property after maintenance.
The sand filter shall be inspected quarterly 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 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.
BMP element:
Potential problem:
How to remediate the problem:
Entire BMP
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as possible.
applicable)
pavement surface.
Perimeter of sand filter
Areas of bare soil and/or
Regrade the soil if necessary to remove the gully, and then plant a
erosive gullies have formed.
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 an appropriate height.
long.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if damage is too large for
repair.
The inlet device
The pipe is clogged.
Unclog the pipe. Dispose of the sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the Swale if necessary to smooth it over and provide erosion
Swale.
control devices such as reinforced turf matting or dprap to avoid future
problems with erosion.
Stone verge is clogged or
Remove sediment and replace with clean stone.
covered in sediment (if
applicable).
Forebay or pretreatment
Sediment has accumulated to
Search for the source of the sediment and remedy the problem if
area
a depth of greater than six
possible. Remove the sediment and stabilize or dispose of it in a
inches.
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
dprap if needed to prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by hand. If a pesticide is used, wipe it
on the plants rather than spraying.
Filter bed and underdrain
Water is ponding on the
Check to see if the collector system is clogged and flush if necessary.
collection system
surface for more than 24
If water still ponds, remove the top few inches of filter bed media and
hours after a storm.
replace. If water still ponds, then consult an expert.
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 Department of Environment and Natural
damage have occurred at the
Resources Regional Office.
outlet.
STORM-EZ 1/19=17
Version 1.4 O&M Manual Page 12 of 13

;r•=,x:� "?;ram?;+.f�.' ?r " * ' ', ri t)iscotin ected�IinpeN!ous,Area`Maihtenarice Requirerriehts>
Important operation and maintenance procedures:
The roof area will be maintained to reduce the debris and sediment load to the system. Excess debris can clog
the system and lead to bypass of the design storm, and reduced infiltration and pollutant removal.
To ensure proper operation as designed, a licensed Professional Engineer, Landscape Architect, or other
qualified professional will inspect the system annually.
- The system components will be repaired or replaced whenever they fail to function properly.
The system will be visually inspected by the owner/operator at least quarterly. Records of operation 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.
BMP element:
Potentialproblem:
How to remediate theproblem:
The captured impervious
Excess debris or sediment is
Remove the debris or sediment as soon as possible.
area
present on the rooftop or
impervious surface.
The gutter system (if
Gutters are clogged, or water
Unclog and remove debris. May need to install gutter screens to
applicable)
is backing up out of the gutter
prevent future clogging.
system.
Rooftop runoff not making it
Correct the positioning or installation of gutters. Replace if necessary
into gutter system.
to capture the roof runoff.
Rooftop runoff causing
Install or repair splash blocks as needed.
erosion at outlet.
Roadways & parking lots
Runoff flows to the pervious
Remove any sediment or obstructuions at the edge of the impervious
(if applicable)
area as concentrated flow.
area, repair gravel verge
Energy dissipaters are unever
Repair or replace energy dissipater.
settled, undercut, eroded or
otherwise damaged.
The pervious area
Erosion is evident
Repair the eroded area and stabilize immediately.
There is erosion around the
Regrade the soil to create a small berm, and then plant turf grass and
end of the pervious area that
water until it is established. Provide lime and a one-time fertilizer
shows stormwater has
application.
bypassed it.
Unintended trees or shrubs
Remove them and re-establish vegetation per the original landscaping
have begun to grow in the
plan.
pervious area.
Areas of bare soil and/or
Regrade the soil if necessary to remove the gully, and then plant with
erosive gullies have formed.
turf grass and water until it is established. Provide lime and a one-
time fertilizer application.
Standing water is present 24
Fill shallow depressions with topsoul and seed mix. Regrade the area
hours after rainfall.
as necessary to reestablish sheet flow across the pervious area.
Vegetation is too long.
Maintain vegetation at a height of approximately 2 to 6 inches.
Property Owner
Homeowners have re-routed
Provide educational materials to homeowners, and contact
Participation
gutters or otherwise altered
neighborhood HOA.
the system in a manner which
adversely impacts
performance.
STORM-EZ
lnsnon
Version 1.4 O&M Manual Page 13 of 13

L '+
Low Density Residential Subdivisions with Curb Outlet Swales
Deed Restrictions & Protective Covenances
In accordance with Title 15 NCAC 2H.1000 and S.L. 2006-246, the Stormwater Management Regulations,
deed restrictions and protective covenants are required for Low Density Residential Subdivisions with curb
outlet swales, where lots will be subdivided and sold. Deed restrictions and protective covenants are
necessary to ensure that the development maintains a "built -upon" area consistent with the applicable
regulation governing the density level.
I David Cutherbertson acknowledge and affirm by my signature below, that I will cause the following deed
restrictions and protective covenants to be recorded for Broadmoor prior to the sale of any lot:
1. The following covenants are intended to ensure ongoing compliance with State Stormwater
Management Permit Number , as issued by the Division of Energy, Mineral and Land
Resources under the Stormwater Management Regulations.
2. The State of North Carolina is made a beneficiary of these covenants to the extent necessary to
maintain compliance with the stormwater management permit.
3. These covenants are to run with the land and be binding on all persons and parties claiming under
them.
4. The covenants pertaining to stormwater may not be altered or rescinded without the express written
consent of the State of North Carolina, Division of Energy, Mineral and Land Resources.
5. Alteration of the drainage as shown on the approved plan may not take place without the concurrence
of the Division of Energy, Mineral and Land Resources.
6. The maximum allowable built -upon area per lot is _ 10,000 square feet. This allotted amount
includes any built -upon area constructed within the lot property boundaries, and that portion of the
right-of-way between the front lot line and the edge of the pavement. Built upon area includes, but is not
limited to, structures, asphalt, concrete, gravel, brick, stone, slate, and coquina, but does not include
raised, open wood decking, or the water surface of swimming pools.
7. In the case of a lot within CAMA's regulated AEC, where the Division of Coastal Management
calculates a different maximum allowable built -upon area for that lot than is shown herein, the
governing maximum built -upon area for that lot shall be the most restrictive of the two.
8. This project proposes a curb outlet system. Each designated curb outlet swale shown on the approved
plan must be maintained at a minimum of 100' long with 5:1 (H:V) side slopes or flatter, have a
longitudinal slope no steeper than 5%, carry the flow from a 10 year storm in a non -erosive manner,
and maintain a dense vegetated cover.
9. Filling in or piping of any vegetative conveyances (ditches, swales, etc.) associated with the
development except for average driveway crossings, is strictly prohibited by any persons.
10. Each lot will maintain a 30* foot wide vegetated buffer between all impervious areas and surface
waters.
11. All roof drains shall terminate at least 30* foot from the mean high water mark of surface waters.
12. Filling in, piping or altering any designated 5:1 curb outlet Swale associated with the development is
prohibited by any persons.
*50 foot for projects located in the 20 coastal counties.
Form DRPC-6 Rev2 05Nov2009 Pagel of 2

Signature: / Date: ( I A-wn
I, I�S' a Notary Public in the
I
State of I `� t-�1, County of V� V �N ,
do hereby certify that 1 (Js� ' 1 1 �, /npersonally appeared
— before me this the I day of aog , 20Lj , and acknowledge
the due execution of the foregoing instrumen . Witness my hand and official seal,
( SEAL
Signatur J (� .... nrpyrq
Y p Ia I� 1" ;o�RJpN ,
M Commission expires
0TARy`s•.
-U'
G'•,'OUBOG
?/0 cooN�
Form DR-PC-6 Rev2 05Nov2009 Page 2 of 2