20140759 Ver 1_Stormwater Info_20140721

Hugh J. Gilleece, III & Associates, P.A. 875 Walnut Street, Suite 360
Cary, North Carolina 27511
Consulting Engineers — (919) 469 -I10I
Business License C -496
Stormwater Operation and Maintenance Manuals
for
Wildblood Subdivision
Ralph Stephens Road
Holly Springs, North Carolina
Prepared For
Beazer Homes - Raleigh
4509 Creedmoor Road, Suite 200
Raleigh, North Carolina 27612
Prepared by
Hugh J. Gilleece, III and Asso
gilleece@,bellsouth.net
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Beazer Vaughan Subdivision
Stormwater Operation and Maintenance Manuals
Table of Contents
Wet Pond 1 — Operations and Maintenance Manual (Form 16024)
Operations and Maintenance Manual
Operations and Maintenance Log
Wet Pond 2 — Operations and Maintenance Manual (Form 16024)
Operations and Maintenance Manual
Operations and Maintenance Log
Wet Pond 3 — Operations and Maintenance Manual (Form 16024)
Operations and Maintenance Manual
Operations and Maintenance Log
Level Spreader FES 200 — Operations and Maintenance Manual (Form SWU401)
Operations and Maintenance Manual

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BEAZER VAUGHAN SUBDIVISION BMP LOCATION MAP IE_XHEi -r 2
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BEAZER VAUGHAN SUBDIVISION BMP LOCATION MAP I BMP 1
HOLLY SPRINCQS, NC

Lei
Wildwood Subdivision
Holly Springs, North Carolina
Owner /Financially Responsible Party:
Name: Beazer Homes
Address : 4509 Creedmoor Rd Suite 200
Raleigh, NC 27612
Contact Name:
Contact Name Britt Spivey
Contact Address Same as Owner
Contact Phone # [phone]
Contact Fax # [phone]
Email Address britt.spivey @beazer.com
Prepared Bye Design Engineer:
Engineering Firm: Hugh J. Gilleece, III Design Engineer Donald A. Sever, P.E.
& Associates, P.A. Design Engineer Same as Firm
Design Engineer Phone # [phone]
Engineering Firm: 875 Walnut St. Ste. 360 Design Engineer Fax
Cary, NC 27511 Design Engineer Email Address
Donald. [e-mail]
Date Submitted by Design Engineer:
Date of DRAFT Approval by Town of Holly Springs:
Date of Approval by Town of Holly Springs:
16024 O &M Manual Page 1 of 5
1/5/12
6/2/14

Structural Stormwater Best Management Practice (BMP) Maintenance
Acknowledgment
Wet Detention Basin #1
I. Monthly or after every runoff producing rainfall, whichever comes first:
A. Remove debris from trash rack.
B. Check and clear orifice of any obstructions.
C. Check pond side slopes; remove trash, repair eroded areas before next rainfall.
II. Quarterly
A. Inspect the collection system (i.e., catch basin, piping, grassed swales) for proper
functioning. Clear accumulated trash from basin grates, and basin bottoms, and
check piping for obstructions.
B. Check pond inlet pipes for undercutting. Repair if necessary.
C. Repair any broken pipes.
D. Replace rip rap that is choked with sediment.
III. Semi- Annually
A. Remove accumulated sediment from bottom of outlet structure.
B. Check pond depth at various locations. If depth is reduced to 75% of original
design depth, remove sediment to original design depth
IV. General
A. A natural buffer is encouraged along the banks of the pond where appropriate.
Annual mowing can be used to maintain a low buffer. Vegetation along the dam
should be mowed on a regular basis to discourage root intrusion.
B. Wetland plants are encouraged along pond perimeter, however, invasive species
such as cattails must be removed when they cover the entire surface area of
pond.
C. All components of impoundment system are to be kept in good working order.
D. In case the ownership of the Impoundment Transfers, the current owner shall,
within thirty (30) days of transfer of ownership, notify the Town of Holly Springs
Engineering Department, Stormwater Management Division of such ownership
transfer.
I, Beazer Homes, hereby acknowledge that I represent the financially responsible party
for maintenance of the Structural Stormwater Best Management Practices for this site. I
will perform the maintenance as outlined above for this project. Operation and
maintenance responsibilities may be transferred to the HOA/OWNER upon completion,
contingent upon the Town of Holly Springs approving that all installation, performance
measures and documentation are in compliance with the approved stormwater
management plan.
Signature:
Managing Member
Date:
I, , a Notary Public of the State of ,
County of , do hereby certify that personally appeared
before me this day of, and acknowledge due execution of the foregoing
instrument. Witness my hand and official seal,
Seal
My Commission Expires:
16024 O &M Manual Page 2 of 5
1/5/12

OPERATIONS & MAINTENANCE MANUAL
Project Name & Phase: Wildwood Subdivision
Information: The wet ponds located in the southeast corner of the project will be constructed and maintained
by Beazer Homes, 4509 Creedmoor Rd. Suite 200, Raleigh, NC 27612. Attn: Britt Spivey. Phone (919)
277 -2406 Fax [phone] email britt.spiveyCt�beazer.com . Deed Book Page A stormwater
surety or another approved instrument will be provided in the amount 35% of actual construction cost.
This operations and maintenance agreement may be assigned only upon the following conditions:
1. (list any applicable conditions)
Date Constructed:
Location: North of road C
Receiving Watercourse(s): Bass Lake Watershed_(Neuse River Basin)
Contractor: (List Construction Information below)
Impoundment & Dam
Outlet Structure & Pipe
Modified Plunge Pool
Material Supplies: (List below)
Riser Structure
DIP Pond Drain
Gate Valve
Outlet Pipe & Anti -Seep Collar
16024 O &M Manual Page 3 of 5
1/5/12

Project Name & Phase: Wildwood Subdivision
Type of BMP:
Wet Detention Pond
Type of BMP:
This manual established procedures for maintenance and operation of the (insert type of BMP this form shall
be created specifically for each BMP).
I. Maintenance
See attached Operation & Maintenance Manual
H. OPERATION
See attached Operation & Maintenance Manual
A. Record Keeping
The Town of Holly Springs shall be provided with written inspection reports as specified in this manual. These reports
shall be provided annually within 30 days of the anniversary of receipt of the "Stormwater BMP /O &M Responsibility
Transfer" letter (form 416037). A professional engineer shall certify the reports. The Town of Holly Springs
_Engineering Department_ shall be notified as soon as any deficiencies in the detention structure are recorded. The Town
shall be notified of the proposed methods to bring the structure into conformance and furthermore, the Town shall
approve of any proposed work to be completed on any part of the structure prior to any work being started. After work
has been completed the Town shall inspect and approve of the work before it shall be considered complete. After the
Town approves the work an as -built drawing shall be completed and provided to the Town.
Note: Operation of a BMP should include the following:
• Annual & Quarterly Inspection Reports — a collection of a written inspection report should be kept on record,
Inspection should be conducted at minimum quarterly and certified by a professional engineer annually.
• Observations — all observations should be recorded. Where periodic inspections are performed following
significant rainfall events, these inspections should be logged on the log forms found in Appendix D of the Town's
Design Manual or created specifically for the project.
• Maintenance — written records of maintenance and/or repairs should be recorded on the Operation & Maintenance
Log Form found in Appendix D of the Town's Design Manual or created specifically for the project.
• Other Operation Procedures — the owner should maintain a complete and up -to -date set of plans (as -built drawings)
and all changes made to the dam over time should be recorded on the as- builts. Mylar and digital as- builts shall be
provided to the Town each time they are updated.
B. Sedimentation & Dredging
Sedimentation from establishing areas tributary to the BMP may eventually result in the reduction of the storage
volume and eventually will have to be removed. The frequency of this sediment removal can be reduced by ensuring
that the site areas around the building be stabilized with a vegetative ground cover such that it restrains erosion. This
would include a periodic application of fertilizer and other treatments necessary to promote a stable groundcover and
minimize sedimentation to the BMP. The maintenance on this BMP requires that (provide design specific clean out
information here). For aesthetic purposes it may be desirable to maintain it prior to this point. The removed material
should be hauled offsite to a suitable landfill site or mounded somewhere on site and stabilized with a groundcover
sufficient to restrain erosion.
16024 O &M Document Page 4 of 5
9.25.09

III. INSPECTION, OPERATION & MAINTENANCE LOGS
(attach a blank copy of the applicable O&M log for each BMP)
(attach 8 112x 11 Location Map)
(attach 8 112 x 11 copy of Recorded Plat(s))
(attach the Stormwater Management Plan, including form #16012 and As- builts)
(attach Engineer Certifications for construction of each BMP)
16024 O &M Document Page 5 of 5
9.25.09

OPERATIONS & MAINTENANCE MANUAL
(Beazer Vaughan Subdivision): Wet Detention Pond #1
This manual established procedures for maintenance and operation of the Beazer
Vaughan Subdivision wet detention pond # 1.
Maintenance of Embankments
A. Vegetation
The embankment has a ground cover of fescue, which if properly maintained
will prevent erosion of the embankment and provide an easy surface for
inspection. The grass will be most difficult to obtain in the area subject to
water level fluctuation below the top of the riser. Grass should be fertilized
every October and April.
♦ Re- Seeding — periodically re- seeding may be required to establish grass
on areas where seek did not take or has been destroyed. Before seeding,
fertilizer (12- 12 -12) should be applied at a minimum rate of 12 to 15
pounds per 1,000 SF. The seed should be evenly sewn at a rate of three
pounds per 1,000 SF. The seed should be covered with soil to the depth
of approximately' / ". Immediately following the planting, the area should
be mulched with straw.
♦ Trees & Shrubs — trees, shrubs, and other landscape vegetation should be
permitted only as shown on the approved planting plan.
♦ Mowing — grass mowing, brush cuffing and removal of weed vegetation
will be necessary for the proper maintenance of the embankment. All
embankment slopes and vegetation of spillways should be mowed when
the grass exceeds 8" in height. Acceptable methods include the use of
weed whips or power brush cutters and mowers.
B. Erosion
Erosion occurs when the water concentrates causing failure of the vegetation
or when vegetation dies and sets up the environment for rill erosion and
eventually gullies from the stormwater. runoff. The dam should be inspected
for these areas. Proper care of vegetative areas that develop erosion is
required to prevent more serious damage to the embankment. Rills and
gullies should be filled with suitable soil compacted and then seeded.
Methods described in Section I -A, on vegetation, should be used to properly
establish the grass surface. Where eroded areas are detected, the cause of
the erosion should be addressed to prevent a continued maintenance
problem. Frequently problems result from the concentration of runoff to one
point of the embankment crest instead of a uniform distribution of runoff. This
can be corrected by reshaping the crest to more evenly distribute the runoff to

areas, which are not experiencing erosion problems. The top of the dam
should not be allowed to be used for pedestrian or bicycle traffic.
♦ Abutment Areas -- the abutment is the line formed where the embankment
fill comes into contact with the existing slope. Runoff from rainfall
concentrates in these gutter areas and can reach erosive velocities
because of the steep slopes. If a normal stand of grass cannot be
maintained on the abutments, additional measures may be needed such
as jute matting to provide for the establishment of a good ground cover.
♦ Upstream Embankment Slope — Erosion problems can develop on the
upstream face of the dam due to the fluctuation of water level in the pond.
This is a result of a combination of wave actions and ground saturation,
which occurs from the elevated water levels. The erosion generally
occurs as the water level falls and the saturated ground becomes
subjected to the wave action. If erosion becomes a problem, it. may
necessitate the installation of a stone armoring along the zone subject to
fluctuating water level. This would consist of 18" of NCDOT Class B stone
for erosion control underlain with Mirifi 140 geotextile fabric. It should be
centered at the point of the erosion problem and covering an area 2'
above and below the approximate center of the eroded area.
C. Seepage
o Detection — due to the fact that the "permanent" impoundment level is only
5' deep, and the road embankment is immediately downstream and
continuous with the dam embankment, seepage should not be expected
on the downstream slope of the embankment. However, a cursory
inspection of the road embankment should be made for completeness of
the inspection. Seepage may vary in appearance from a soft wet area to
a flowing spring. It may show up first as only an area where the
vegetation is more lush and darker green. Cattails, reeds, mosses and
other marsh vegetation often become established in a seepage area. The
downstream abutment areas where the embankment fill and natural
ground interface are very common locations for seepage. Also the contact
between the embankment and the spillway conduit is a very common
location which is generally attributed to poor compaction around the
conduit. Due to the way in which conduits are put in, this is generally most
evident on the underside of the conduit. Slides may result from
excessively saturated embankment slopes. The natural foundation area
immediately downstream of the dam abutment should also be inspected to
ensure that "piping" is not occurring underneath the embankment.
"Piping" may appear as a "boil" evident as spring carries soil. The soil
usually deposits around the boil area and is evident by the sedimentary
deposits accompanying it. Seepage can also occur into the spillway
conduit through cracks in the pipe or improperly sealed joints. These can
be seen by observing the conduit when the water level is high. The
movement of the water itself is not dangerous, but if soil particles are
being carried with it, then it can create a shortcut for the piping of soil.

This might show up on the upstream face of the embankment roughly
along the line of the conduit itself.
D. Cracks, Slides, Sloughing, and Settlement
♦ Cracks — the entire embankment should be inspected for cracks. Short,
isolated cracks are usually not significant, but larger cracks (wider than
'/ "), well defined cracks indicate a serious problem. There are two types
of cracks: transverse and longitudinal.
Traverse cracks appear crossing the embankment and indicated
difference of settlement within the embankment. these cracks
provide avenues for seepage and piping could develop.
Longitudinal cracks run parallel to the embankment and may signal
the early stages of a slide. In recently built structures, these cracks
may be indicative of poor compaction or poor foundation
preparation resulting in consolidation after construction.
♦ Slides — Slides and slumps are serious threats to the safety of an
embankment. Slides can be detected easily unless obscured by
vegetation. Arch shaped cracks are indications that slides are slipping or
beginning to slip. These cracks soon develop into large scarps in the
slope at the top of the slide.
e Settlement — settlement occurs both during construction and after the
embankment has been completed and places in service. To a certain
degree this is normal and should be experienced. It is usually the most
pronounced at the location of maximum foundation depth or embankment
height. Excessive settlement will reduce the free board (difference in
elevation between the water surface and the top of the dam). Any area of
excessive settlement should be restored to original elevation and condition
to reduce the risk of overtopping. A relatively large amount of settlement
(more than 6 ") within a small area could indicate serious problems in the
foundation or perhaps the lower part of the embankment. Settlement
accompanied by cracking often precedes failure.
♦ What to do if seepage, cracks, slides or settlement are detected: If any of
the above items are detected there may be signs of significant problems,
which could lead, to the failure of the structure. A geotechnicai or civil
engineer should be consulted regarding the origin of these problems and
for the assessment of the appropriate solutions for correcting them. If the
professional is not immediately able to inspect the dam, then the bottom
drain should be opened and the water level lowered to remove the risk of
failure until a professional can observe these problems.
E. Rodent Control
Generally in this urban environment, rodents are not a problem. Rodents
such as ground hogs, muskrats, and beavers are attracted to dams and
reservoirs and can be quite dangerous to structural integrity and proper
performance of the embankment and spillway. Groundhog and muskrats

thrive on burrowing in the manmade earth embankments, which become
pathways for seepage. In the event that burrows are detected within the dam,
then the rodents should be dealt with by removal.
II. MAINTENANCE OF SPILLWAYS & CONTROL STRUCTURES
A. Inspection of Spillway Conduits
Conduits should be inspected thoroughly once a year. Conduits should be
visually inspected by actually entering the conduit a sufficient distance
between the riser structure and the outlet to check all the joints. Because the
outlet works tie into the street storm sewer system, catch basins and pipes.
Conduit should be inspected for proper alignment (sagging), elongation and
displacement at joints, cracks, leaks, surface water, surface wear, loss of
protective coating, corrosion and blocking. Problems with conduits most often
occurs at joints and special attention should be given to them during
inspection. Joints should be checked for gaps caused by elongation or
settlement and loss of joint filler material. Open joints can permit erosion of
the embankment material and possibly the piping of soil material through the
joints. Catch basin should be checked for signs that water is seeping along
the exterior surface of the pipe where it enters the catch basin. A depression
in the soil surface over the pipe may be signs that soil is being removed from
around the pipe.
♦ What to do if problems are detected with the spillway: Retain the
assistance of a civil engineer or geotechnical engineer qualified in the
design of embankments to perform an inspection of the dam. If in doubt,
lower the water surface elevation of the pond until such time as an
inspection can be performed by a qualified professional.
B. Trashracks on Pipe Spillways
The spillway riser and rip -rap weir for this dam is the only spillway structures.
The intake structure has been fitted with a trashrack to prevent debris from
entering the spillway structure. Most of the runoff entering the pond comes in
through grated inlets, which have essentially provided filtration of the runoff
and should limit the size of the debris that enters the basin to floating debris
which will most likely pass through the trashrack. The opening between the
trashrack and riser is smaller than the opening of the outlet pipe. The intent is
that any debris, which passes through the trashrack, will be easily passed by
the pipe outlet.
Maintenance should include periodically checking the rack for rusted or
broken sections and repairing as needed. The trashrack should be checked
frequently during and after storm events to ensure that it is properly
functioning and to remove accumulated debris.
III. OPERATION
A. Lake Drains

Lake drains should always be operable so that the pool level can be drawn
down in case of an emergency or for repairs or maintenance. Lake drain
valves or gates that have not been operated for a long time present a special
problem. Generally, when draining the pond, it should be drained slowly.
Open the drain until a good flow of water is present but not a torrent, so that
the water level can be drained over a period of 48 hours or more. Rapidly
lowering the water level in the pond can cause permanent damage to the
embankment and must be avoided. The gate valve controlling the lake drain
should be operated from fully closed to fully opened position at least twice a
year.

THE TOVM OF
Dolly
Springs
NORTH C A R O L I N A
Stormwater BMP Operation & Maintenance Log
Wet Detention Basin
TOWN OF HOLLY SPRINGS ENGINEERING DEPARTMENT
Project Information & BMP Identification
Project Name:
Beazer Vaughan Subdivision
TOHS Project Number:
13 -DO -02
Project Location:
Ralph Stephens Road
PIN Number:
0658133419/0658034571
Property Owner:
Beazer Homes - Raleigh
BMP Location:
Northwest corner of project
BMP Element
Operation Inspection
Maintenance Inspection
Date:
Maintenance Required?
Maintenance Completed?
By:
❑ Yes
❑ Yes
Type of Inspection:
Quarterly or Annual
❑ No
❑ No
Last Rainfall Date:
Description:
Description:
Last Rainfall Amount:
Maintenance Required?
Maintenance Completed?
Today's Weather:
❑ Yes
❑ Yes
Photo Attached & Name:
❑
No
❑
Description:
BMP Element
Status
Maintenance Completed
Entire BMP
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Drainage Area &
Maintenance Required?
Maintenance Completed?
Perimeter of the BMP
❑ Yes
❑ Yes
No
No
Description:
Description:
Inlet Device: pipe orswale
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Forebay
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Vegetated Shelf
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
16015 Wet Deterntion Basin O &M 4.1.08 Page 1 of 3

THE TOWN OF
AC Molly
springs
NORTH CAROLINA
Stormwater BMP Operation & Maintenance Log
Wet Detention Basin
TOWN OF HOLLY SPRINGS ENGINEERING DEPARTMENT
Aquatic Environment
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑No
F-1 No
Description:
Description:
Main Treatment Area
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑No
❑No
Description:
Description:
Embankment
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Outlet Device
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
F-1 No
❑No
Description:
Description:
Receiving Water
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑No
❑No
Description:
Description:
General Comments, Sketches & Field Measurements (attach if necessary): Include Date & Initials
16015 Wet Deterntion Basin O &M 4.1.08 Page 2 of 3

THE TOWN OF Stormwater BMP Operation & Maintenance Log
ri Wet Detention Basin
.-. Sprinngs gs
NORTH CAROLINA TOWN OF HOLLY SPRINGS ENGINEERING DEPARTMENT
Annual Engineer's Certification of Stormwater BMP Operation & Maintenance
Note: this section is not required to be filled out for quarterly inspections
I
a Licensed Professional Engineer in the State of North Carolina,
Print Name
do hereby certify that the Stormwater BMP
Wet Pond
Type
Constructed as a part of
Beazer Vaughan Tract , project located at
Name of Project
the southeast side of Street C, north of the Street C/ D intersection.
Size /lot/general description
has been maintained in substantial accordance with the approved plans and specifications, dated:
Date
This is certification is based on my field observation during the periodic & annual operation and
maintenance inspections and other methods as follows (if applicable):
(Seal)
Date:
16015 Wet Deterntion Basin O &M 4.1.08 Page 3 of 3
PE #:

Wet Pond 2

EEAZER VAUGHAN SUBDIVISION
HOLLY SPRINQS, NC
BMP LOCATION MAP

I'IC�]�I►C�
1;
MAINTENANCE MANUAL
Wildwood Subdivision
Holly Springs, North Carolina
Owner /Financially Responsible Party:
Name: Beazer Homes
Address : 4509 Creedmoor Rd Suite 200
Raleigh, NC 27612
Contact Name:
Contact Name Britt Spivey
Contact Address Same as Owner
Contact Phone # [phone]
Contact Fax # [phone]
Email Address britt.spivey @beazer.com
Prepared By: __ Design Engineer:
Engineering Firm: Hugh J. Gilleece, III Design Engineer Donald A. Sever, P.E.
& Associates, P.A. Design Engineer Same as Firm
Design Engineer Phone # [phone]
Engineering Firm: 875 Walnut St. Ste. 360 Design Engineer Fax
Cary, NC 27511 Design Engineer Email Address
Donald. sever @att.net
Date Submitted by Design Engineer: 6/2/14
Date of DRAFT Approval by Town of Holly Springs:
Date of Approval by Town of Holly Springs:
16024 O &M Manual Page 1 of 5
1/5/12

Structural Stormwater Best Management Practice (BMP) Maintenance
Acknowledgment
Wet Detention Basin #2
I. Monthly or after every runoff producing rainfall, whichever comes first:
A. Remove debris from trash rack.
B. Check and clear orifice of any obstructions.
C. Check pond side slopes; remove trash, repair eroded areas before next rainfall.
II. Quarterly
A. Inspect the collection system (i.e., catch basin, piping, grassed swales) for proper
functioning. Clear accumulated trash from basin grates, and basin bottoms, and
check piping for obstructions.
B. Check pond inlet pipes for undercutting. Repair if necessary.
C. Repair any broken pipes.
D. Replace rip rap that is choked with sediment.
III. Semi- Annually
A. Remove accumulated sediment from bottom of outlet structure.
B. Check pond depth at various locations. If depth is reduced to 75% of original
design depth, remove sediment to original design depth
IV. General
A. A natural buffer is encouraged along the banks of the pond where appropriate.
Annual mowing can be used to maintain a low buffer. Vegetation along the dam
should be mowed on a regular basis to discourage root intrusion.
B. Wetland plants are encouraged along pond perimeter, however, invasive species
such as cattails must be removed when they cover the entire surface area of
pond.
C. All components of impoundment system are to be kept in good working order.
D. In case the ownership of the Impoundment Transfers, the current owner shall,
within thirty (30) days of transfer of ownership, notify the Town of Holly Springs
Engineering Department, Stormwater Management Division of such ownership
transfer.
I, Beazer Homes, hereby acknowledge that I represent the financially responsible party
for maintenance of the Structural Stormwater Best Management Practices for this site. I
will perform the maintenance as outlined above for this project. Operation and
maintenance responsibilities may be transferred to the HOA/OWNER upon completion,
contingent upon the Town of Holly Springs approving that all installation, performance
measures and documentation are in compliance with the approved stormwater
management plan.
Signature:
Managing Member
Date:
I, , a Notary Public of the State of ,
County of , do hereby certify that personally appeared
before me this day of, and acknowledge due execution of the foregoing
instrument. Witness my hand and official seal,
Seal
My Commission Expires:
16024 O &M Manual Page 2 of 5
1/5/12

OPERATIONS & MAINTENANCE MANUAL
Project Name & Phase: Wildwood Subdivision
Information: The wet ponds located in the southeast corner of the project will be constructed and maintained
by Beazer Homes, 4509 Creedmoor Rd. Suite 200, Raleigh, NC 27612. Attn: Britt Spivey. Phone (919)
277 -2406 Fax [phone] email britt.spiveygbeazer.com . Deed Book Page A stormwater
surety or another approved instrument will be provided in the amount 35% of actual construction cost.
This operations and maintenance agreement may be assigned only upon the following conditions:
1. (list any applicable conditions)
Date Constructed:
Location: South of road C
Receiving Watercourse(s):_ _ _ Bass Lake Watershed (Meuse River Basin)
Contractor: (List Construction Information below)
Impoundment & Dam
Outlet Structure & Pipe
Modified Plunge Pool
Material Supplies: (List below)
Riser Structure
DIP Pond Drain
Gate Valve
Outlet Pipe & Anti -Seep Collar
16024 O &M Manual Page 3 of 5
1/5/12

Project Name & Phase: Wildwood Subdivision
Type of BMP:
Wet Detention Pond
Type of BMP:
This manual established procedures for maintenance and operation of the (insert type of BMP this form shall
be created specifically for each BMP).
I. Maintenance
See attached Operation & Maintenance Manual
H. OPERATION
See attached Operation & Maintenance Manual
A. Record Keeping
The Town of Holly Springs shall be provided with written inspection reports as specified in this manual. These reports
shall be provided annually within 30 days of the anniversary of receipt of the "Stormwater BMP /O &M Responsibility
Transfer" letter (form #16037). A professional engineer shall certify the reports. The Town of Holly Springs
Engineering Department shall be notified as soon as any deficiencies in the detention structure are recorded. The Town
shall be notified of the proposed methods to bring the structure into conformance and furthermore, the Town shall
approve of any proposed work to be completed on any part of the structure prior to any work being started. After work
has been completed the Town shall inspect and approve of the work before it shall be considered complete. After the
Town approves the work an as -built drawing shall be completed and provided to the Town.
Note: Operation of a BMP should include the following:
• Annual & Quarterly Inspection Reports — a collection of a written inspection report should be kept on record,
Inspection should be conducted at minimum quarterly and certified by a professional engineer annually.
• Observations — all observations should be recorded. Where periodic inspections are performed following
significant rainfall events, these inspections should be logged on the log forms found in Appendix D of the Town's
Design Manual or created specifically for the project.
• Maintenance — written records of maintenance and/or repairs should be recorded on the Operation & Maintenance
Log Form found in Appendix D of the Town's Design Manual or created specifically for the project.
• Other Operation Procedures — the owner should maintain a complete and up -to -date set of plans (as -built drawings)
and all changes made to the dam over time should be recorded on the as- builts. Mylar and digital as- builts shall be
provided to the Town each time they are updated.
B. Sedimentation & Dredging
Sedimentation from establishing areas tributary to the BMP may eventually result in the reduction of the storage
volume and eventually will have to be removed. The frequency of this sediment removal can be reduced by ensuring
that the site areas around the building be stabilized with a vegetative ground cover such that it restrains erosion. This
would include a periodic application of fertilizer and other treatments necessary to promote a stable groundcover and
minimize sedimentation to the BMP. The maintenance on this BMP requires that (provide design specific clean out
information here). For aesthetic purposes it may be desirable to maintain it prior to this point. The removed material
should be hauled offsite to a suitable landfill site or mounded somewhere on site and stabilized with a groundcover
sufficient to restrain erosion.
16024 O &M Document Page 4 of 5
9.25.09

III. INSPECTION, OPERATION & MAINTENANCE LOGS
(attach a blank copy of the applicable O&M log for each BMP)
(attach 8 Y2 x 11 Location Map)
(attach 8 Y2 x I1 copy of Recorded Plat(s))
(attach the Stormwater Management Plan, including form #16012 and As- builts)
(attach Engineer Certifications for construction of each BMP)
16024 O &M Document Page 5 of 5
9.25.09

OPERATIONS & MAINTENANCE MANUAL
(Beazer Vaughan Subdivision): Wet Detention Pond #2
This manual established procedures for maintenance and operation of the Beazer
Vaughan Subdivision wet detention pond # 2.
Maintenance of Embankments
A. Vegetation
The embankment has a ground cover of fescue, which if properly maintained
will prevent erosion of the embankment and provide an easy surface for
inspection. The grass will be most difficult to obtain in the area subject to
water level fluctuation below the top of the riser. Grass should be fertilized
every October and April.
♦ Re- Seeding — periodically re- seeding may be required to establish grass
on areas where seek did not take or has been destroyed. Before seeding,
fertilizer (12- 12 -12) should be applied at a minimum rate of 12 to 15
pounds per 1,000 SF. The seed should be evenly sewn at a rate of three
pounds per 1,000 SF. The seed should be covered with soil to the depth
of approximately' / ". Immediately following the planting, the area should
be mulched with straw.
♦ Trees & Shrubs — trees, shrubs, and other landscape vegetation should be
permitted only as shown on the approved planting plan.
♦ Mowing — grass mowing, brush cutting and removal of weed vegetation
will be necessary for the proper maintenance of the embankment. All
embankment slopes and vegetation of spillways should be mowed when
the grass exceeds 8" in height. Acceptable methods include the use of
weed whips or power brush cutters and mowers.
B. Erosion
Erosion occurs when the water concentrates causing failure of the vegetation
or when vegetation dies and sets up the environment for rill erosion and
eventually gullies from the stormwater runoff. The dam should be inspected
for these areas. Proper care of vegetative areas that develop erosion is
required to prevent more serious damage to the embankment. Rills and
gullies should be filled with suitable soil compacted and then seeded.
Methods described in Section I -A, on vegetation, should be used to properly
establish the grass surface. Where eroded areas are detected, the cause of
the erosion should be addressed to prevent a continued maintenance
problem. Frequently problems result from the concentration of runoff to one
point of the embankment crest instead of a uniform distribution of runoff. This
can be corrected by reshaping the crest to more evenly distribute the runoff to

areas, which are not experiencing erosion problems. The top of the dam
should not be allowed to be used for pedestrian or bicycle traffic.
♦ Abutment Areas -- the abutment is the line formed where the embankment
fill comes into contact with the existing slope. Runoff from rainfall
concentrates in these gutter areas and can reach erosive velocities
because of the steep slopes. If a normal stand of grass cannot be
maintained on the abutments, additional measures may be needed such
as jute matting to provide for the establishment of a good ground cover.
o Upstream Embankment Slope — Erosion problems can develop on the
upstream face of the dam due to the fluctuation of water level in the pond.
This is a result of a combination of wave actions and ground saturation,
which occurs from the elevated water levels. The erosion generally
occurs as the water level falls and the saturated ground becomes
subjected to the wave action. If erosion becomes a problem, it may
necessitate the installation of a stone armoring along the zone subject to
fluctuating water level. This would consist of 18" of NCDOT Class B stone
for erosion control underlain with Mirifi 140 geotextile fabric. It should be
centered at the point of the erosion problem and covering an area 2'
above and below the approximate center of the eroded area.
C. Seepage
e Detection — due to the fact that the "permanent" impoundment level is only
5' deep, and the road embankment is immediately downstream and
continuous with the dam embankment, seepage should not be expected
on the downstream slope of the embankment. However, a cursory
inspection of the road embankment should be made for completeness of
the inspection. Seepage may vary in appearance from a soft wet area to
a flowing spring. It may show up first as only an area where the
vegetation is more lush and darker green. Cattails, reeds, mosses and
other marsh vegetation often become established in a seepage area. The
downstream abutment areas where the embankment fill and natural
ground interface are very common locations for seepage. Also the contact
between the embankment and the spillway conduit is a very common
location which is generally attributed to poor compaction around the
conduit. Due to the way in which conduits are put in, this is generally most
evident on the underside of the conduit. Slides may result from
excessively saturated embankment slopes. The natural foundation area
immediately downstream of the dam abutment should also be inspected to
ensure that "piping" is not occurring underneath the embankment.
"Piping" may appear as a "boil" evident as spring carries soil. The soil
usually deposits around the boil area and is evident by the sedimentary
deposits accompanying it. Seepage can also occur into the spillway
conduit through cracks in the pipe or improperly sealed joints. These can
be seen by observing the conduit when the water level is high. The
movement of the water itself is not dangerous, but if soil particles are
being carried with it, then it can create a shortcut for the piping of soil.

This might show up on the upstream face of the embankment roughly
along the line of the conduit itself.
D. Cracks, Slides, Sloughing, and Settlement
♦ Cracks — the entire embankment should be inspected for cracks. Short,
isolated cracks are usually not significant, but larger cracks (wider than
'/ "), well defined cracks indicate a serious problem. There are two types
of cracks: transverse and longitudinal.
Traverse cracks appear crossing the embankment and indicated
difference of settlement within the embankment. these cracks
provide avenues for seepage and piping could develop.
Longitudinal cracks run parallel to the embankment and may signal
the early stages of a slide. In recently built structures, these cracks
may be indicative of poor compaction or poor foundation
preparation resulting in consolidation after construction.
♦ Slides — Slides and slumps are serious threats to the safety of an
embankment. Slides can be detected easily unless obscured by
vegetation. Arch shaped cracks are indications that slides are slipping or
beginning to slip. These cracks soon develop into large scarps in the
slope at the top of the slide.
♦ Settlement — settlement occurs both during construction and after the
embankment has been completed and places in service. To a certain
degree this is normal and should be experienced. It is usually the most
pronounced at the location of maximum foundation depth or embankment
height. Excessive settlement will reduce the free board (difference in
elevation between the water surface and the top of the dam). Any area of
excessive settlement should be restored to original elevation and condition
to reduce the risk of overtopping. A relatively large amount of settlement
(more than 6 ") within a small area could indicate serious problems in the
foundation or perhaps the lower part of the embankment. Settlement
accompanied by cracking often precedes failure.
♦ What to do if seepage, cracks, slides or settlement are detected: If any of
the above items are detected there may be signs of significant problems,
which could lead, to the failure of the structure. A geotechnical or civil
engineer should be consulted regarding the origin of these problems and
for the assessment of the appropriate solutions for correcting them. If the
professional is not immediately able to inspect the dam, then the bottom
drain should be opened and the water level lowered to remove the risk of
failure until a professional can observe these problems.
E. Rodent Control
Generally in this urban environment, rodents are not a problem. Rodents
such as ground hogs, muskrats, and beavers are attracted to dams and
reservoirs and can be quite dangerous to structural integrity and proper
performance of the embankment and spillway. Groundhog and muskrats

thrive on burrowing in the manmade earth embankments, which become
pathways for seepage. In the event that burrows are detected within the dam,
then the rodents should be dealt with by removal.
II. MAINTENANCE OF SPILLWAYS & CONTROL STRUCTURES
A. Inspection of Spillway Conduits
Conduits should be inspected thoroughly once a year. Conduits should be
visually inspected by actually entering the conduit a sufficient distance
between the riser structure and the outlet to check all the joints. Because the
outlet works tie into the street storm sewer system, catch basins and pipes.
Conduit should be inspected for proper alignment (sagging), elongation and
displacement at joints, cracks, leaks, surface water, surface wear, loss of
protective coating, corrosion and blocking. Problems with conduits most often
occurs at joints and special attention should be given to them during
inspection. Joints should be checked for gaps caused by elongation or
settlement and loss of joint filler material. Open joints can permit erosion of
the embankment material and possibly the piping of soil material through the
joints. Catch basin should be checked for signs that water is seeping along
the exterior surface of the pipe where it enters the catch basin. A depression
in the soil surface over the pipe may be signs that soil is being removed from
around the pipe.
♦ What to do if problems are detected with the spillway: Retain the
assistance of a civil engineer or geotechnical engineer qualified in the
design of embankments to perform an inspection of the dam. If in doubt,
lower the water surface elevation of the pond until such time as an
inspection can be performed by a qualified professional.
B. Trashracks on Pipe Spillways
The spillway riser and rip -rap weir for this dam is the only spillway structures.
The intake structure has been fitted with a trashrack to prevent debris from
entering the spillway structure. Most of the runoff entering the pond comes in
through grated inlets, which have essentially provided filtration of the runoff
and should limit the size of the debris that enters the basin to floating debris
which will most likely pass through the trashrack. The opening between the
trashrack and riser is smaller than the opening of the outlet pipe. The intent is
that any debris, which passes through the trashrack, will be easily passed by
the pipe outlet.
Maintenance should include periodically checking the rack for rusted or
broken sections and repairing as needed. The trashrack should be checked
frequently during and after storm events to ensure that it is properly
functioning and to remove accumulated debris.
111�QTAS-JAV Q-LI1
A. Lake Drains

Lake drains should always be operable so that the pool level can be drawn
down in case of an emergency or for repairs or maintenance. Lake drain
valves or gates that have not been operated for a long time present a special
problem. Generally, when draining the pond, it should be drained slowly.
Open the drain until a good flow of water is present but not a torrent, so that
the water level can be drained over a period of 48 hours or more. Rapidly
lowering the water level in the pond can cause permanent damage to the
embankment and must be avoided. The gate valve controlling the lake drain
should be operated from fully closed to fully opened position at least twice a
year.

THE TOWN OF
Dolly
Springs
NORTH C A R O L I N A
Stormwater BMP Operation & Maintenance Log
Wet Detention Basin
TOWN OF HOLLY SPRINGS ENGINEERING DEPARTMENT
Project Information & BMP Identification
Project Name:
Beazer Vaughan Subdivision
TOHS Project Number:
13 -DO -02
Project Location:
Ralph Stephens Road
PIN Number:
0658133419/0658034571
Property Owner:
Beazer Homes - Raleigh
BMP Location:
South of Street D
BMP Element
Operation Inspection
Maintenance Inspection
Date:
Maintenance Required?
Maintenance Completed?
By:
❑ Yes
❑ Yes
Type of Inspection:
Quarterly or Annual
❑ No
❑ No
Last Rainfall Date:
Description:
Description:
Last Rainfall Amount:
Maintenance Required?
Maintenance Completed?
Today's Weather:
❑ Yes
❑ Yes
Photo Attached & Name:
❑
❑ No
❑
Description:
BMP Element
Status
Maintenance Completed
Entire BMP
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Drainage Area &
Maintenance Required?
Maintenance Completed?
Perimeter of the BMP
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Inlet Device: pipe orswale
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Forebay
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Vegetated Shelf
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
16015 Wet Deterntion Basin O &M 4.1.08 Page 1 of 3

THE TOWN OF
Holly
Springs
NORTH CAROLINA
Stormwater BMP Operation & Maintenance Log
Wet Detention Basin
TOWN OF HOLLY SPRINGS ENGINEERING DEPARTMENT
Aquatic Environment
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Main Treatment Area
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Embankment
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Outlet Device
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Receiving Water
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
General Comments, Sketches & Field Measurements (attach if necessary): Include Date & Initials
16015 Wet Deterntion Basin O &M 4.1.08 Page 2 of 3

THE TOWN OF Stormwater BMP Operation & Maintenance Log
Molly
Springs Wet Detention Basin
NORTH CAROLINA TOWN OF HOLLY SPRINGS ENGINEERING DEPARTMENT
Annual Engineer's Certification of Stormwater BMP Operation & Maintenance
Note: this section is not required to be filled out for quarterly inspections
a Licensed Professional Engineer in the State of North Carolina,
Print Name
do hereby certify that the Stormwater BMP
Wet Pond
Type
Constructed as a part of
Beazer Vaughan Tract , project located at
Name of Project
the southeast side of Street D.
Size /lot/general description
has been maintained in substantial accordance with the approved plans and specifications, dated:
uate
This is certification is based on my field observation during the periodic & annual operation and
maintenance inspections and other methods as follows (if applicable):
(Seal
Date:
16015 Wet Deterntion Basin O &M 4.1.08 Page 3 of 3
SM

Wet Pond 3

1►1muluc,
BEAZER VAUGHAN SUBDIVISION BMP LOCATION MAP BMP 3
HOLLY SPRINC3S, NC

11711,11 ,' / 1
MAINTENANCE MANUAL.
Wildwood Subdivision
Holly Springs, North Carolina
Owner /Financially Responsible Party:
Name: Beazer Homes
Address : 4509 Creedmoor Rd Suite 200
Raleigh, NC 27612
Prepared By:
Engineering Firm: Hugh J. Gilleece, III
& Associates, P.A.
Engineering Firm: 875 Walnut St. Ste. 360
Cary, NC 27511
Contact Name:
Contact Name Britt Spivey
Contact Address Same as Owner
Contact Phone # [phone]
Contact Fax # [phone]
Email Address britt.spivey @beazer.com
Design Engineer:
Design Engineer Donald A. Sever, P.E.
Design Engineer Same as Firm
Design Engineer Phone # [phone]
Design Engineer Fax
Design Engineer Email Address
Donald. sever @att.net
Date Submitted by Design Engineer:
Date of DRAFT Approval by Town of Holly Springs:
Date of Approval by Town of Holly Springs:
16024 O &M Manual Page 1 of 5
1/5/12
6/2/14

Structural Stormwater Best Management Practice (BMP) Maintenance
Acknowledgment
Wet Detention Basin #3
I. Monthly or after every runoff producing rainfall, whichever comes first:
A. Remove debris from trash rack.
B. Check and clear orifice of any obstructions.
C. Check pond side slopes; remove trash, repair eroded areas before next rainfall.
II. Quarterly
A. Inspect the collection system (i.e., catch basin, piping, grassed swales) for proper
functioning. Clear accumulated trash from basin grates, and basin bottoms, and
check piping for obstructions.
B. Check pond inlet pipes for undercutting. Repair if necessary.
C. Repair any broken pipes.
D. Replace rip rap that is choked with sediment.
III. Semi- Annually
A. Remove accumulated sediment from bottom of outlet structure.
B. Check pond depth at various locations. If depth is reduced to 75% of original
design depth, remove sediment to original design depth
IV. General
A. A natural buffer is encouraged along the banks of the pond where appropriate.
Annual mowing can be used to maintain a low buffer. Vegetation along the dam
should be mowed on a regular basis to discourage root intrusion.
B. Wetland plants are encouraged along pond perimeter, however, invasive species
such as cattails must be removed when they cover the entire surface area of
pond.
C. All components of impoundment system are to be kept in good working order.
D. In case the ownership of the Impoundment Transfers, the current owner shall,
within thirty (30) days of transfer of ownership, notify the Town of Holly Springs
Engineering Department, Stormwater Management Division of such ownership
transfer.
I, Beazer Homes, hereby acknowledge that I represent the financially responsible party
for maintenance of the Structural Stormwater Best Management Practices for this site. I
will perform the maintenance as outlined above for this project. Operation and
maintenance responsibilities may be transferred to the HOA/OWNER upon completion,
contingent upon the Town of Holly Springs approving that all installation, performance
measures and documentation are in compliance with the approved stormwater
management plan.
Signature:
Managing Member
Date:
I, , a Notary Public of the State of ,
County of , do hereby certify that personally appeared
before me this day of, and acknowledge due execution of the foregoing
instrument. Witness my hand and official seal,
Seal
My Commission Expires:
16024 O &M Manual Page 2 of 5
1/5/12

OPERATIONS & MAINTENANCE MANUAL
Project Name & Phase: Wildwood Subdivision
Information: The wet ponds located in the southeast corner of the project will be constructed and maintained
by Beazer Homes, 4509 Creedmoor Rd. Suite 200, Raleigh, NC 27612. Attn: Britt Spivey. Phone (919)
277 -2406 Fax [phone] email britt.spiveyLbbeazer.coln . Deed Book Page A stormwater
surety or another approved instrument will be provided in the amount 35% of actual construction cost.
This operations and maintenance agreement may be assigned only upon the following conditions:
1. (list any applicable conditions)
Date Constructed:
Location: Near Pumping Station off Road A
Receiving Watercourse(s): _ _ Bass Lake Watershed_(Neuse River Basin)
Contractor: (List Construction Information below)
Impoundment & Dam
Outlet Structure & Pipe
Modified Plunge Pool
Material Supplies: (List below)
Riser Structure
DIP Pond Drain
Gate Valve
Outlet Pipe & Anti -Seep Collar
16024 O &M Manual Page 3 of 5
1/5/12

Project Name & Phase: Wildwood Subdivision
Type of BMP: Wet Detention Pond
Type of BMP:
This manual established procedures for maintenance and operation of the (insert type of BMP this form shall
be created specifically for each BMP).
I. Maintenance
See attached Operation & Maintenance Manual
II. OPERATION
See attached Operation & Maintenance Manual
A. Record Keeping
The Town of Holly Springs shall be provided with written inspection reports as specified in this manual. These reports
shall be provided annually within 30 days of the anniversary of receipt of the "Stormwater BMP /O &M Responsibility
Transfer" letter (form #16037). A professional engineer shall certify the reports. The Town of Holly Springs
Engineering Department shall be notified as soon as any deficiencies in the detention structure are recorded. The Town
shall be notified of the proposed methods to bring the structure into conformance and furthermore, the Town shall
approve of any proposed work to be completed on any part of the structure prior to any work being started. After work
has been completed the Town shall inspect and approve of the work before it shall be considered complete. After the
Town approves the work an as -built drawing shall be completed and provided to the Town.
Note: Operation of a BMP should include the following:
• Annual & Quarterly Inspection Reports — a collection of a written inspection report should be kept on record,
Inspection should be conducted at minimum quarterly and certified by a professional engineer annually.
• Observations — all observations should be recorded. Where periodic inspections are performed following
significant rainfall events, these inspections should be logged on the log forms found in Appendix D of the Town's
Design Manual or created specifically for the project.
• Maintenance — written records of maintenance and/or repairs should be recorded on the Operation & Maintenance
Log Form found in Appendix D of the Town's Design Manual or created specifically for the project.
• Other Operation Procedures — the owner should maintain a complete and up -to -date set of plans (as -built drawings)
and all changes made to the dam over time should be recorded on the as- builts. Mylar and digital as- builts shall be
provided to the Town each time they are updated.
B. Sedimentation & Dredging
Sedimentation from establishing areas tributary to the BMP may eventually result in the reduction of the storage
volume and eventually will have to be removed. The frequency of this sediment removal can be reduced by ensuring
that the site areas around the building be stabilized with a vegetative ground cover such that it restrains erosion. This
would include a periodic application of fertilizer and other treatments necessary to promote a stable groundcover and
minimize sedimentation to the BMP. The maintenance on this BMP requires that (provide design specific clean out
information here). For aesthetic purposes it may be desirable to maintain it prior to this point. The removed material
should be hauled offsite to a suitable landfill site or mounded somewhere on site and stabilized with a groundcover
sufficient to restrain erosion.
16024 O &M Document Page 4 of 5
9.25.09

III. INSPECTION, OPERATION & MAINTENANCE LOGS
(attach a blank copy of the applicable O&M log for each BMP)
(attach 8 1/2 x 11 Location Map)
(attach 81 /z x 11 copy of Recorded Plat(s))
(attach the Stormwater Management Plan, including form #16012 and As- builts)
(attach Engineer Certifications for construction of each BMP)
16024 O &M Document Page 5 of 5
9.25.09

OPERATIONS & MAINTENANCE MANUAL
(Beazer Vaughan Subdivision): Wet Detention Pond #3
This manual established procedures for maintenance and operation of the Beazer
Vaughan Subdivision wet detention pond # 3.
Maintenance of Embankments
A. Vegetation
The embankment has a ground cover of fescue, which if properly maintained
will prevent erosion of the embankment and provide an easy surface for
inspection. The grass will be most difficult to obtain in the area subject to
water level fluctuation below the top of the riser. Grass should be fertilized
every October and April.
♦ Re- Seeding — periodically re- seeding may be required to establish grass
on areas where seek did not take or has been destroyed. Before seeding,
fertilizer (12- 12 -12) should be applied at a minimum rate of 12 to 15
pounds per 1,000 SF. The seed should be evenly sewn at a rate of three
pounds per 1,000 SF. The seed should be covered with soil to the depth
of approximately ' / ". Immediately following the planting, the area should
be mulched with straw.
s Trees & Shrubs — trees, shrubs, and other landscape vegetation should be
permitted only as shown on the approved planting plan.
o Mowing — grass mowing, brush cutting and removal of weed vegetation
will be necessary for the proper maintenance of the embankment. All
embankment slopes and vegetation of spillways should be mowed when
the grass exceeds 8" in height. Acceptable methods include the use of
weed whips or power brush cutters and mowers.
B. Erosion
Erosion occurs when the water concentrates causing failure of the vegetation
or when vegetation dies and sets up the environment for rill erosion and
eventually gullies from the stormwater runoff. The dam should be inspected
for these areas. Proper care of vegetative areas that develop erosion is
required to prevent more serious damage to the embankment. Rills and
gullies should be filled with suitable soil compacted and then seeded.
Methods described in Section I-A, on vegetation, should be used to properly
establish the grass surface. Where eroded areas are detected, the cause of
the erosion should be addressed to prevent a continued maintenance
problem. Frequently problems result from the concentration of runoff to one
point of the embankment crest instead of a uniform distribution of runoff. This
can be corrected by reshaping the crest to more evenly distribute the runoff to

areas, which are not experiencing erosion problems. The top of the dam
should not be allowed to be used for pedestrian or bicycle traffic.
♦ Abutment Areas -- the abutment is the line formed where the embankment
fill comes into contact with the existing slope. Runoff from rainfall
concentrates in these gutter areas and can reach erosive velocities
because of the steep slopes. If a normal stand of grass cannot be
maintained on the abutments, additional measures may be needed such
as jute matting to provide for the establishment of a good ground cover.
e Upstream Embankment Slope — Erosion problems can develop on the
upstream face of the dam due to the fluctuation of water level in the pond.
This is a result of a combination of wave actions and ground saturation,
which occurs from the elevated water levels. The erosion generally
occurs as the water level falls and the saturated ground becomes
subjected to the wave action. If erosion becomes a problem, it may
necessitate the installation of a stone armoring along the zone subject to
fluctuating water level. This would consist of 18" of NCDOT Class B stone
for erosion control underlain with Mirifi 140 geotextile fabric. It should be
centered at the point of the erosion problem and covering an area 2'
above and below the approximate center of the eroded area.
C. Seepage
♦ Detection — due to the fact that the "permanent" impoundment level is only
5' deep, and the road embankment is immediately downstream and
continuous with the dam embankment, seepage should not be expected
on the downstream slope of the embankment. However, a cursory
inspection of the road embankment should be made for completeness of
the inspection. Seepage may vary in appearance from a soft wet area to
a flowing spring. It may show up first as only an area where the
vegetation is more lush and darker green. Cattails, reeds, mosses and
other marsh vegetation often become established in a seepage area. The
downstream abutment areas where the embankment fill and natural
ground interface are very common locations for seepage. Also the contact
between the embankment and the spillway conduit is a very common
location which is generally attributed to poor compaction around the
conduit. Due to the way in which conduits are put in, this is generally most
evident on the underside of the conduit. Slides may result from
excessively saturated embankment slopes. The natural foundation area
immediately downstream of the dam abutment should also be inspected to
ensure that "piping" is not occurring underneath the embankment.
"Piping" may appear as a "boil" evident as spring carries soil. The soil
usually deposits around the boil area and is evident by the sedimentary
deposits accompanying it. Seepage can also occur into the spillway
conduit through cracks in the pipe or improperly sealed joints. These can
be seen by observing the conduit when the water level is high. The
movement of the water itself is not dangerous, but if soil particles are
being carried with it, then it can create a shortcut for the piping of soil.

thrive on burrowing in the manmade earth embankments, which become
pathways for seepage. In the event that burrows are detected within the dam,
then the rodents should be dealt with by removal.
II. MAINTENANCE OF SPILLWAYS & CONTROL STRUCTURES
A. Inspection of Spillway Conduits
Conduits should be inspected thoroughly once a year. Conduits should be
visually inspected by actually entering the conduit a sufficient distance
between the riser structure and the outlet to check all the joints. Because the
outlet' works tie into the street storm sewer system, catch basins and pipes.
Conduit should be inspected for proper alignment (sagging), elongation and
displacement at joints, cracks, leaks, surface water, surface wear, loss of
protective coating, corrosion and blocking. Problems with conduits most often
occurs at joints and special attention should be given to them during
inspection. Joints should be checked for gaps caused by elongation or
settlement and loss of joint filler material. Open joints can permit erosion of
the embankment material and possibly the piping of soil material through the
joints. Catch basin should be checked for signs that water is seeping along
the exterior surface of the pipe where it enters the catch basin. A depression
in the soil surface over the pipe may be signs that soil is being removed from
around the pipe.
♦ What to do if problems are detected with the spillway: Retain the
assistance of a civil engineer or geotechnical engineer qualified in the
design of embankments to perform an inspection of the dam. If in doubt,
lower the water surface elevation of the pond until such time as an
inspection can be performed by a qualified professional.
B. Trashracks on Pipe Spillways
The spillway riser and rip -rap weir for this dam is the only spillway structures.
The intake structure has been fitted with a trashrack to prevent debris from
entering the spillway structure. Most of the runoff entering the pond comes in
through grated inlets, which have essentially provided filtration of the runoff
and should limit the size of the debris that enters the basin to floating debris
which will most likely pass through the trashrack. The opening between the
trashrack and riser is smaller than the opening of the outlet pipe. The intent is
that any debris, which passes through the trashrack, will be easily passed by
the pipe outlet.
Maintenance should include periodically checking the rack for rusted or
broken sections and repairing as needed. The trashrack should be checked
frequently during and after storm events to ensure that it is properly
functioning and to remove accumulated debris.
III. OPERATION
A. Lake Drains

Lake drains should always be operable so that the pool level can be drawn
down in case of an emergency or for repairs or maintenance. Lake drain
valves or gates that have not been operated for a long time present a special
problem. Generally, when draining the pond, it should be drained slowly.
Open the drain until a good flow of water is present but not a torrent, so that
the water level can be drained over a period of 48 hours or more. Rapidly
lowering the water level in the pond can cause permanent damage to the
embankment and must be avoided. The gate valve controlling the lake drain
should be operated from fully closed to fully opened position at least twice a
year.

THE TOWN OF
Molly
Springs
NORTH CAROLINA
Stormwater BMP Operation & Maintenance Log
Wet Detention Basin
TOWN OF HOLLY SPRINGS ENGINEERING DEPARTMENT
Project Information & BMP Identification
Project Name:
Beazer Vaughan Subdivision
TOHS Project Number:
13 -DO -02
Project Location:
Ralph Stephens Road
PIN Number:
0658133419/0658034571
Property Owner:
Beazer Homes - Raleigh
BMP Location:
West Side of Street A
BMP Element
Operation Inspection
Maintenance Inspection
Date:
Maintenance Required?
Maintenance Completed?
By:
❑ Yes
❑ Yes
Type of Inspection:
Quarterly or Annual
❑ No
❑ No
Last Rainfall Date:
Description:
Description:
Last Rainfall Amount:
Maintenance Required?
Maintenance Completed?
Today's Weather:
❑ Yes
❑ Yes
Photo Attached & Name:
I ❑
❑ No
❑
Description:
BMP Element
Status
Maintenance Completed
Entire BMP
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Drainage Area &
Maintenance Required?
Maintenance Completed?
Perimeter of the BMP
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Inlet Device: pipe or swale
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Forebay
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
F] No
F-1 No
Description:
Description:
Vegetated Shelf
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
16015 Wet Deterntion Basin O &M 4.1.08 Page 1 of 3

THE TOWN OF
Molly
Springs
NORTH CAROLINA
Stormwater BMP Operation & Maintenance Log
Wet Detention Basin
TOWN OF HOLLY SPRINGS ENGINEERING DEPARTMENT
Aquatic Environment
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
F-1 No
F-1 No
Description:
Description:
Main Treatment Area
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Embankment
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Outlet Device
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Receiving Water
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
General Comments, Sketches & Field Measurements (attach if necessary): Include Date & Initials
16015 Wet Deterntion Basin O &M 4.1.08 Page 2 of 3

AKTHE TOWS OF Stormwater BMP Operation & Maintenance Log
- HoUy Springs Wet Detention Basin
NORTH CAROLINA TOWN OF HOLLY SPRINGS ENGINEERING DEPARTMENT
Annual Engineer's Certification of Stormwater BMP Operation & Maintenance
Note: this section is not required to be filled out for quarterly inspections
11
, a Licensed Professional Engineer in the State of North Carolina,
Print Name
do hereby certify that the Stormwater BMP
Wet Pond
Type
Constructed as a part of
Beazer Vaughan Tract , project located at
Name of Project
the west side of Street A.
Size /lot/general description
has been maintained in substantial accordance with the approved plans and specifications, dated:
Date
This is certification is based on my field observation during the periodic & annual operation and
maintenance inspections and other methods as follows (if applicable):
Seal
Date:
16015 Wet Deterntion Basin O &M 4.1.08 Page 3 of 3
NM

Level Spreader FES 200

L-CVC-
BEAZER VAUGHAN SUBDIVISION BMP LOCATION MAP I BMP 4
"r-m 1 Y N["
.RPFiIAIla3 =Z

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
— Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
— Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC,1993). Forested filter strips do not require this type of maintenance.
— Once a year, the soil will be aerated if necessary.
— Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (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 I will remediate the problem:
The entire filter strip
Trash/ debris is present.
Remove the trash /debris.
...system
The flow splitter device
(if applicable)
The flow splitter device is
clogged.
Unclog the conveyance and dispose
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 1 of 3

BMP element:
Potential problem:
How I will remediate the problem:
The swale and the level
lip
The Swale is clogged with
sediment.
Remove the sediment and dispose
of it off -site.
The level lip is cracked,
Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the
Regrade the soil to create a berm
end of the level spreader that
that is higher than the level lip, and
shows stormwater has
then plant a ground cover and
bypassed it.
water until it is established. Provide
lime and a one -time fertilizer
application.
Trees or shrubs have begun
Remove them.
to grow on the Swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and /or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is
Study the site to see if a larger_
damaged or ripap is rolling
bypass channel is needed (enlarge if
downhill.
necessary). After this, reestablish
the erosion control material.
The filter strip
Grass is too short or too long
Maintain grass at a height of
(if applicable).
approximately three to six inches.
Areas of bare soil and /or
Regrade the soil if necessary to
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.
Sediment is building up on
Remove the sediment and
the filter strip.
restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
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.
Nuisance vegetation is
Remove vegetation by hand if
choking out desirable species.
possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality local Regional Office, or the
outlet.
401 Oversight Unit at 919 - 733 -1786.
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 2 of 3

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name: Wildwood Subdivision
BMP drainage area number: 200
Print name: Chris Simmering
Title: Director Land Development
Address:4509 Creedmoor Rd Suite 200 Raleigh NC 27612
Phone:[phone]
Signature:
Date:
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.
I,
a Notary Public for the State of
, County of , do hereby certify that
personally appeared before me this
day of , and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and /or level spreader maintenance requirements.
Witness my hand and official seal,
SEAL
My commission expires
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 3 of 3

THE TOWN OF
oKMolly
Springs
NORTH CAROLINA
Stormwater BMP Operation & Maintenance Log
Level Spreader
TOWN OF HOLLY SPRINGS ENGINEERING DEPARTMENT
Project Information & BMP Identification
Project Name:
Wildwood Subdivision
TOHS Project Number:
13 -DO -02
Project Location:
Ralph Stephens Road
PIN Number:
0658133419/0658034571
Property Owner:
Beazer Homes - Raleigh
BMP Location:
Outlet 200 Located at south side of Wildwood Farm station 23
BMP Element
Operation Inspection
Maintenance Inspection
Date:
Maintenance Required?
Maintenance Completed?
By:
❑ Yes
❑ Yes
Type of Inspection:
Quarterly or Annual
❑No
❑No
Last Rainfall Date:
Description:
Description:
Last Rainfall Amount:
Maintenance Required?
Maintenance Completed?
Today's Weather:
❑ Yes
❑ Yes
Photo Attached & Name:
❑
❑ No
❑
Description:
BMP Element
Status
Maintenance Completed
Rip -Rap
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑No
❑No
Description:
Description:
Plunge Pool Lip
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑ No
❑ No
Description:
Description:
Filter Strip
Maintenance Required?
Maintenance Completed?
❑ Yes
❑ Yes
❑No
❑No
Description:
Description:
16014 Level Spreader O &M 4.1.08 Page 1 of 2

— TOwNOF Stormwater BMP Operation & Maintenance Log
Sprrings ings Level Spreader
NORTH CAROLINA TOWN OF HOLLY SPRINGS ENGINEERING DEPARTMENT
General Comments, Sketches & Field Measurements (attach if necessary): Include Date & Initials
Annual Engineer's Certification of Stormwater BMP Operation & Maintenance
Note: this section is not required to be filled out for quarterly inspections
I, , a Licensed Professional Engineer in the State of North Carolina,
Print Name
do hereby certify that the Stormwater BMP
Constructed as a part of
Type
project located at
Name of Project
Size /lot/general description
has been maintained in substantial accordance with the approved plans and specifications, dated:
Date
This is certification is based on my field observation during the periodic & annual operation and
maintenance inspections and other methods as follows (if applicable):
e
Date:
16014 Level Spreader O &M 4.1.08 Page 2 of 2