20052070 Ver 2_Diffuse Flow Package with Final Application_05-08-15_20150511

Strickland, Bev
From: Deborah Shirley <dshirley @sandec.com>
Sent: Friday, May 08, 2015 12:11 PM
To: Strickland, Bev
Subject: Weavers Pond Application 05 -08 -15
Attachments: FINAL PCN Application-Weavers Pond 2C_05- 08- 15.pdf, Diffuse Flow Package with
Final Application_05- 08- 15.pdf
Attached are the scanned PCN app package and the diffuse flow package, these are being couriered to your
office today.
Let me know if you need anything else!! Xoxoxox
Deb
Deborah Edwards Shirley
Environmental Specialist
Soil & Environmental Consultants, PA
NEW ( "'P 11 11 CE U.',) A r i ,) N,
North Quarter Office Park
8412 Falls of Neuse Road, Suite 104
Raleigh, NC 27615
919 - 846 -5900 (office)
919 -673 -8793 (mobile)
Iry Iry Iry . S a n d. E C. c o III.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
This electronic communication, including all attachments, is intended only for the named addressee (s) and may contain confidential information. This
electronic communication may not have passed through our standard review /quality control process. Design data and recommendations included herein are
provided as a matter of convenience and should not be used for final design. Rely only on final, hardcopy materials bearing the consultant's original signature
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THINK BEFORE YOU PRINT

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301 GLENWOOD AVE. 220
RALEIGH,NC 27603
PHONE: 919 - 367 -8790
FAX 919 - 322 -0032
www.cegroupinc.com
License # C -1739
Date:
JANUARY 2015
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GENERAL CONSTRUCTION NOTE
1. EXISTING UNDERGROUND STRUCTURES AND UTILITIES SHOWN
ARE BASED ON FIELD SURVEY. THE CONTRACTOR SHALL FIELD
VERIFY CONDITIONS PRIOR TO STARTING CONSTRUCTION AND
NOTIFY THE ENGINEER OF ANY DISCREPANCIES IMMEDIATELY.
2. THE CONTRACTOR SHALL CONTACT NORTH CAROLINA ONE CALL
AT 1- 800 - 632 -4949 FOR ASSISTANCE IN LOCATING UTILITIES. THE
CONTRACTOR SHALL CALL AT LEAST 48 HOURS PRIOR TO
DIGGING.
3. ALL CONSTRUCTION SHALL CONFORM TO TOWN OF ZEBULON
STANDARDS AND SPECIFICATIONS.
4. ALL WATER AND SEWER IMPROVEMENTS SHALL CONFORM TO
THE CITY OF RALEIGH PUBLIC UTILITIES DEPARTMENT STANDARD
AND SPECIFICATIONS. SEE SHEETS 14 & 15 FOR UTILITY
CONSTRUCTION DETAILS.
5. CONTRACTOR TO CALL JASON BROWN AT 919 - 795 -5640 WITH THE
TOWN OF ZEBULON TO SCHEDULE PRE - CONSTRUCTION MEETING
PRIOR TO BEGINNING CONSTRUCTION.
6. ALL ROADWAY, SIDEWALK AND STORM DRAINAGE
IMPROVEMENTS IN RIGHT -OF -WAY WILL BE REQUIRED TO BE
DEDICATED TO THE TOWN OF ZEBULON AT COMPLETION OF
PROJECT.
7. AS -BUILT SITE PLANS FOR ROADWAY AND UTILITY WORKS MUST
BE SUBMITTED AND APPROVED PRIOR TO FINAL ACCEPTANCE.
CONTRACTOR IS RESPONSIBLE FOR MAINTAINING RED LINE
DRAWINGS.
8. DEVELOPER /OWNER IS RESPONSIBLE FOR CONTRACTING WITH
THIRD PARTY NCDOT CERTIFIED TESTING FIRM. FIRM MUST BE
APPROVED BY THE TOWN OF ZEBULON. MATERIAL TESTING IS
REQUIRED AT FOR ALL ROADWAY WORK. FINAL REPORTING AND
CERTIFICATION (SEALED) IS REQUIRED AT COMPLETION OF
PROJECT BY THE GEOTECHNICAL TESTING ENGINEER. TESTING
IS REQUIRED FOR SUBGRADE, ROADWAY STONE, ASPHALT AND
CURB AND GUTTER PER TOWN SPECIFICATIONS.
9. DELINEATED WETLANDS SHOWN HEREON ARE PERFORMED BY
SOIL AND ENVIRONMENTAL CONSULTANTS, PA AND PERTAIN
ONLY TO PORTIONS WITHIN PROPERTY LIMITS.
10. THE SUBJECT PROPERTY IS NOT LOCATED IN A FLOOD HAZARD
AREA PER FEMA FIRM PANEL 3720179600J EFFECTIVE MAY 2, 2006.
STOP!
BEFORE YOU DIG CALL
THE NC ONE CALL CENTER
1- 800 - 632 -4949
ITS THE LAW!
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Date:
JANUARY 201 5
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3. A FILTER BLANKET OR FILTER FABRIC SHOULD BE
INSTALLED BETWEEN THE KIPKAP AND SOIL FOUNDATION.
PIPE OUTLET TO FLAT AREA - WELL DEFINED CHANNEL
TYPICAL OF FE5 D -5 AND FE5 D-
NOT TO SCALE
START -UP FERTILIZER APPLICATION TO
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APPLY THE FOLLOWING FOR GRASSES OTHER THAN CETIPEDE:
75 LBS Of GROUND LIMESTONE PER 1 ,000 SQ. FT.
A STARTER TYPE FERTILIZER ( ONE THAT IS HIGH IN PHOSPHOROUS)
BASED ON THE TYPE OF GRASS AND THE PLANTING METHOD.
EERTILIA\ZEK BAGS HAVE A THREE - NUMBER SYSTEM INDICATING THE
PRIMARY NUTRIENTS, SUCH AS 8 -8 -8 OR 5-10-10. THESE NUMBERS
DENOTE THE N -P -K RATIO - THE PERCENTAGE OF EACH NUTRIENT IN A
FERTILIZER. HTE PERCENTAGES ARE NOTED IN THE FOLLOWING ORDER:
N NITROGEN FOR GREEN COLOR AND GROWTH
P205 PHOSPHOROUS FOR GOOD ROOTING
K20 POTASSIUM TO ENHANCE PEST AND ENVIRONMENTAL STRESS
TOLERANCE.
- TO BE COMMON BERMUDA GROWN IN NON - CLAYEY SOILS OR
WASHED SOD.
- AFTER THE SOD IS PLANTED, KEEP THE TOP 1.5 INCHES Of THE SOIL
MOIST. THIS MAY REQUIRED LIGHT WATERING SEVERAL TIMES A WEEK
FOR 7 TO 21 DAYS.
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NOTES:
I . ALL CONCRETE SHALL BE 4,000 PSI.
2. ALL JOINTS ARE TO BE SEALED WATER TIGHT.
3. WEIR IS TO BE POURED- IN -PLACE CONCRETE.
4. CONSTRUCTION OF SPLITTER BOX TO BE IN ACCORDANCE
WITH CURRENT ISSUE NCDOT STANDARD DRAWINGS.
5. CONTRACTOR TO SUBMIT SHOP DRAWINGS FOR APPROVAL.
SPUTTER BOX DETAIL
NOT TO SCALE
10 LF 24" CONCRETE SPILL
CURB (AIR ENTRAINED 3,000
PSI @ 28 DAYS) @ 0%
HORIZONTAL GRADE SLOPE
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NOTES:
I . LEVEL SPKEADE IS NOT TO BE INSTALLED UNTIL ALL
UPSTREAM DRAINAGE AREA HAS BEEN STABILIZED.
2. 101 WIDE LINEAR WETLAND TO BE PLANTED WITH
STOKMWATEK POND MIX AS PROVIDED BY MELOW
MARSH FARM NURSERY OR APPROVED EQUAL.
1211
TYPICAL SECTION
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NOTES:
1. SCORE CURB / VALLEY GUTTER AT 15' O.C.
2. PROVIDE 1/2" EXPANSION JOINTS AT 90' O.C.
3. FOR TRANSITION OF CURB TO CURB OPENING INLET,
SEE STANDARD DETAIL 33.
TOWN OF ZEBULON
SCALE- DETAIL #
STD. CURB * G UTTE K NOT TO SCALE 3
VALLEY GUTTER, DETAIL DATE, SHEET #-
_ ..._„ _.... _ ._.._... „ JULY 2010 1 OF 1
VARIES
11/2 I EX CURB
u. EX PAVEMEN
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1. PROVIDE 3/4" DEEP TOOLED SCORE AT 5-0" O.C.
2. EXPANSION JOINTS TO BE PLACED 30' -0" O.C.
LONGITUDINALLY, ADJACENT TO CURBS, AND WHEN
BUTTING EXISTING STRUCTURES, CONCRETE, OR
BUILDINGS.
3. CONCRETE TO BE 3000 P.S.I. AT 28 DAYS,
AIR - ENTRAINED.
4. SUBGRADE SHOULD NOT CONTAIN ORGANIC MATTER
OR PLASTIC CLAYS. WHEN FOUND, REFER TO SPECS
OR CONTACT ENGINEER FOR DIRECTIONS.
5. AREAS OF FILL ARE TO BE COMPACTED TO 95%
STANDARD PROCTOR USING NCDOT CLASS III
BORROW OR BETTER. REMOVE TOPSOIL BEFORE
PLACING BORROW.
6. SIDEWALK TRANSVERSE SLOPE MAY INCREASE TO
1/2 IN 12 WITH TOWN'S ENGINEER APPROVAL.
TOWN OF ZEBULON
TYP SIDEWALK IN SCALE DETAIL #
CUT OR FILL SECTIONS NOT TO SCALE 3
DATES SHEET # -
USE WITH STANDARD SPECIFICATIONS ONLY JULY 2010 1 OF 1
5. BEGINNING RADIUS SHALL NOT ENCROACH ON ADJACENT PROPERTIES BASED
ON A PROJECTION OF PROPERTY LINE FROM THE RIGHT -OF -WAY TO THE
CURB LINE.
6. SIDEWALK SECTION SHALL NOT BE REQUIRED ALONG STREETS WHICH ARE
NOT PLANNED FOR SIDEWALK.
CONCRETE APRON FILLER
:WALK 42" MIN.
re
NEW 4" THICK
CONCRETE SIDEWALK
1/2" EXP. JOINT
CONCRETE FILLER
APRON & W/S
(INTEGRAL POUR)
SCORE
A
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D/W RAMP
1/2" EXP. JOINT
FACE EXISTING CURB
TOWN OF ZEBULON
51 DEWALK DETAIL X -I NG NOTE-
TO SCALE DETAIL I4
EX. D I, I V E WAYS DATE- SHEET #-
USE WITH STANDARD SPECIFICATIONS ONLY JULY 2010 1 OF 1
NN 1( 41
Inlet for Roll Type Curt - - FOR REGULATORY
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1- 800 - 632 -4949
IT'S THE LAW!
www.cegroupinc.com
License # C -1739
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Project No.
280 -03
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STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION
APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS -VFS) SUPPLEMENT
This form must be completely filled out, printed, initialed, and submitted.
I. PROJECT INFORMATION
Peak flow directed to the LS -VFS
Project name
Weavers Pond Phase 2C
Contact name
Joe Faulkner, RLA CE Group, Inc.
Phone number
919 - 367 -8790
Date
May 4, 2014
Drainage area number
LS For FES D -5
II. DESIGN INFORMATION
The purpose of the LS -VFS
Other: Explained below
Stormwater enters LS -VFS from
The drainage area
Type of VFS
Engineered filter strip (graded & sodded, slope < 8 %)
Explanation of any "Other" responses above
If Stormwater Enters the LS -VFS from the Drainage Area
Drainage area
52,708 fe
Impervious surface area
26,354 fe
Percent impervious
50.00 %
Rational C coefficient
0.50
Peak flow from the 1 in /hr storm
0.61 cfs
Time of concentration
5.00 min
Rainfall intensity, 10 -yr storm
7.22 in /hr
Peak flow from the 10 -yr storm
4.37 cfs
Design storm
1 inch /hour storm
Maximum amount of flow directed to the LS -VFS
0.61 cfs
Is a flow bypass system going to be used?
Y (Y or N)
Explanation of any "Other" responses above
If Stormwater Enters the LS -VFS from a BMP
Do not complete this section of the form.
Type of BMP
Pick one:
Peak discharge from the BMP during the design storm
cfs
Peak discharge from the BMP during the 10 -year storm
cfs Do not complete this section of the form.
Maximum capacity of a 100 -foot long LS -VFS
10 cfs
Peak flow directed to the LS -VFS
cfs Do not complete this section of the form.
Is a flow bypass system going to be used?
(Y or N)
Explanation of any "Other" responses above
Form SW401 - LS -VFS - 29June2012 -Rev. 10 page 1 of 3

LS -VFS Design
Forebay surface area
Depth of forebay at stormwater entry point
Depth of forebay at stormwater exit point
Feet of level lip needed per cfs
Computed minimum length of the level lip needed
Length of level lip provided
Width of VFS
Elevation at downslope base of level lip
Elevation at the end of the VFS that is farthest from the LS
Slope (from level lip to the end of the VFS)
Are any draws present in the VFS?
Is there a collector swale at the end of the VFS?
Bypass System Design (if applicable)
Is a bypass system provided?
Is there an engineered flow splitting device?
Dimensions of the channel (see diagram below):
M
B
W
y (flow depth for 10 -year storm)
freeboard (during the 10 -year storm)
Peak velocity in the channel during the 10 -yr storm
Channel lining material
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Explanation of any "Other" responses above
Y (Y or N)
Y (Y or N) Please provide plan details of flow splitter & supporting calcs.
ft
ft
ft
ft
ft
4.37 fUsec
Rip -rap
Y (Y or N) Redesign channel to discharge to a dissipator pad adjacent to the wetlan
y (Y or N)
W
i F 1
Form SW401 - LS -VFS - 29June2012 -Rev. 10 page 2 of 3
sq ft
in
in
10
furls
6
ft Ten feet is the minimum level spreader length.
10
ft
30
ft
340.47
fmsl
339.50
fmsl
3.23
%
N
(Y or N) OK
N
(Y or N)
Y (Y or N)
Y (Y or N) Please provide plan details of flow splitter & supporting calcs.
ft
ft
ft
ft
ft
4.37 fUsec
Rip -rap
Y (Y or N) Redesign channel to discharge to a dissipator pad adjacent to the wetlan
y (Y or N)
W
i F 1
Form SW401 - LS -VFS - 29June2012 -Rev. 10 page 2 of 3

III. REQUIRED ITEMS CHECKLIST
EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result
in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the
following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met,
attach justification.
Requried Item:
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
Off -site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Forebay (if applicable),
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW), and
Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
High flow bypass system,
One foot topo lines between the level lip and top of stream bank,
Proposed drainage easement, and
Design at ultimate build -out.
3. Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
Level lip,
Upslope channel, and
Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from
sediment until the entire drainage area is stabilized.
6. If a non - engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present.
7. The supporting calculations.
8. A copy of the signed and notarized operation and maintenance (0 &M) agreement.
Initials Page or plan sheet number and any notes:
For Drainage Area see Drainage Area Map - See Sht 6 for Overall
Grading Plan and Layout
See Sht 12
See Sht 12
See Sht 12
See Sht 12
nla
see attached
see attached
Form SW401 - LS -VFS - 29June2012 -Rev. 10 page 3 of 3

AN"A
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NCDENR
Pick one:
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION
APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS -VFS) SUPPLEMENT
This form must be completely filled out, printed, initialed, and submitted.
I. PROJECT INFORMATION
Peak flow directed to the LS -VFS
Project name
Weavers Pond Phase 2C
Contact name
Joe Faulkner, RLA CE Group, Inc.
Phone number
919 - 367 -8790
Date
May 4, 2014
Drainage area number
LS For FES D -11
II. DESIGN INFORMATION
The purpose of the LS -VFS
Other: Explained below
Stormwater enters LS -VFS from
The drainage area
Type of VFS
Engineered filter strip (graded & sodded, slope < 8 %)
Explanation of any "Other" responses above
If Stormwater Enters the LS -VFS from the Drainage Area
Drainage area
62,726 fe
Impervious surface area
31,363 fe
Percent impervious
50.00 %
Rational C coefficient
0.50
Peak flow from the 1 in /hr storm
0.72 cfs
Time of concentration
5.00 min
Rainfall intensity, 10 -yr storm
7.22 in /hr
Peak flow from the 10 -yr storm
5.20 cfs
Design storm
1 inch /hour storm
Maximum amount of flow directed to the LS -VFS
0.72 cfs
Is a flow bypass system going to be used?
Y (Y or N)
Explanation of any "Other" responses above
If Stormwater Enters the LS -VFS from a BMP
Do not complete this section of the form.
Type of BMP
Pick one:
Peak discharge from the BMP during the design storm
cfs
Peak discharge from the BMP during the 10 -year storm
cfs Do not complete this section of the form.
Maximum capacity of a 100 -foot long LS -VFS
10 cfs
Peak flow directed to the LS -VFS
cfs Do not complete this section of the form.
Is a flow bypass system going to be used?
(Y or N)
Explanation of any "Other" responses above
Form SW401 - LS -VFS - 29June2012 -Rev. 10 page 1 of 3

LS -VFS Design
Forebay surface area
Depth of forebay at stormwater entry point
Depth of forebay at stormwater exit point
Feet of level lip needed per cfs
Computed minimum length of the level lip needed
Length of level lip provided
Width of VFS
Elevation at downslope base of level lip
Elevation at the end of the VFS that is farthest from the LS
Slope (from level lip to the end of the VFS)
Are any draws present in the VFS?
Is there a collector swale at the end of the VFS?
Bypass System Design (if applicable)
Is a bypass system provided?
Is there an engineered flow splitting device?
Dimensions of the channel (see diagram below):
M
B
W
y (flow depth for 10 -year storm)
freeboard (during the 10 -year storm)
Peak velocity in the channel during the 10 -yr storm
Channel lining material
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Explanation of any "Other" responses above
Y (Y or N)
Y (Y or N) Please provide plan details of flow splitter & supporting calcs.
ft
ft
ft
ft
ft
4.37 fUsec
Rip -rap
Y (Y or N) Redesign channel to discharge to a dissipator pad adjacent to the wetlan
y (Y or N)
W
i F 1
Form SW401 - LS -VFS - 29June2012 -Rev. 10 page 2 of 3
sq ft
in
in
10
furls
7
ft Ten feet is the minimum level spreader length.
10
ft
30
ft
345.02
fmsl
344.40
fmsl
2.07
%
N
(Y or N) OK
N
(Y or N)
Y (Y or N)
Y (Y or N) Please provide plan details of flow splitter & supporting calcs.
ft
ft
ft
ft
ft
4.37 fUsec
Rip -rap
Y (Y or N) Redesign channel to discharge to a dissipator pad adjacent to the wetlan
y (Y or N)
W
i F 1
Form SW401 - LS -VFS - 29June2012 -Rev. 10 page 2 of 3

III. REQUIRED ITEMS CHECKLIST
EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result
in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the
following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met,
attach justification.
Requried Item:
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
Off -site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Forebay (if applicable),
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW), and
Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
High flow bypass system,
One foot topo lines between the level lip and top of stream bank,
Proposed drainage easement, and
Design at ultimate build -out.
3. Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
Level lip,
Upslope channel, and
Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from
sediment until the entire drainage area is stabilized.
6. If a non - engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present.
7. The supporting calculations.
8. A copy of the signed and notarized operation and maintenance (0 &M) agreement.
Initials Page or plan sheet number and any notes:
For Drainage Area see Drainage Area Map - See Sht 6 for Overall
Grading Plan and Layout
See Sht 12
See Sht 12
See Sht 12
See Sht 12
N/a
see attached
see attached
Form SW401 - LS -VFS - 29June2012 -Rev. 10 page 3 of 3

LEVEL SPREADER FOR FES #D -5
Drainage Area = 1.21 ac
C -value = 0.5
Intensity = 1.0 in /hr 1" / hr storm event
Q -1" Storm 0.61 cfs
Level Spreader Length 10 ft / cfs 10 foot length Level Spreader
SPLITTER BOX ROUTING
Objective: No more than 0.61 cfs to flow to level spreader druing event.
Q -1" FLOW = 0.61 CFS
Flow to Level Spreader via 6" HDPE
Level Spreader Orifice Calculator
Given Input Data
Solving for .....................
Headwater
Flowrate ........................
0.6100 cfs
Coefficient .....................
0.6000
Diameter ........................
6.0000 in
Tailwater .......................
1.0000 ft
Computed Results:
Headwater .......................
1.42 ft
Set weir in Splitter Box at 1.42' above invert out

LEVEL SPREADER FOR FES #D -11
Drainage Area = 1.44 ac
C -value = 0.5
Intensity = 1.0 in /hr 1" / hr storm event
Q -1" Storm 0.72 cfs
Level Spreader Length 10 ft / cfs 10 foot length Level Spreader
SPLITTER BOX ROUTING
Objective: No more than 0.72 cfs to flow to level spreader druing event.
Q -1" FLOW = 0.72 CFS
Flow to Level Spreader via 6" HDPE
Level Spreader Orifice Calculator
Given Input Data:
Solving for .....................
Headwater
Flowrate ........................
0.720 cfs
Coefficient .....................
0.6000
Diameter ........................
6.0000 in
Tailwater .......................
0.5000 ft
Computed Results:
Headwater ....................... 1.08 ft
Set weir in Splitter Box at 1.08' above invert out

Operation & Maintenance Agreement
Project Name:
Project Location:
Weavers Pond Phase 2C
Zebulon, NC
Cover Page
Maintenance records shall be kept on the following BMP(s). This maintenance record shall 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 pollutant removal efficiency of the BMP(s).
The BMP(s) on this project include (check all that apply & cc
Bioretention Cell Quantity:
Dry Detention Basin
Grassed Swale
Green Roof
Infiltration Basin
Infiltration Trench
Level Spreader /VFS
Permeable Pavement
Proprietary System
Rainwater Harvesting
Sand Filter
Stormwater Wetland
Wet Detention Basin
Disconnected Impervious Area
User Defined BMP
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Present:
Present:
�rres onai
2
0
No
No
-ig O &M tables will
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
De aaaea auiomaucaii
FES D -5 & FES D -11 1
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. I 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
personally appeared before me this
Glenn Futrell
member - manager Weavers Pond Development Co LLC
9407 Bartons Creek Rd
Raleigh, NC 27615
919 - 530 -9399
[e-mail]
, a Notary Public for the State of
, do hearby certify that
day of
acknowledge the due execution of the Operations and Maintenance Agreement .
Witness my hand and official seal,
Seal STORM -EZ My commission expires
Version 1.4
Date:
and
4/30/2015
Page 1 of 4

STORM -EZ 4/30/2015
Version 1.4 O &M Manual Page 2 of 4

Level Spreader- Vegetated Filter Strip / Restored Riparian Buffer Maintenance Requirements
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 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 flow splitter device (if
The flow splitter device is
Unclog the conveyance and dispose of any sediment off -site.
applicable)
clogged.
The flow splitter device is
Make any necessary repairs or replace if damage is too large for
damaged.
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 riprap to avoid future
problems with erosion.
Stone verge is clogged or
Remove sediment and replace with clean stone.
covered in sediment (if
applicable).
STORM -EZ 4/30/2015
Version 1.4 O &M Manual Page 3 of 4

LS -VFS / Restored Riparian Buffer Maintenance Requirements (Continued)
The swale and the level lip
The swale is clogged with
Remove the sediment and dispose of it off -site.
sediment.
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 that is higher than the level lip, and
end of the level spreader that
then plant a ground cover and water until it is established. Provide
shows stormwater has
lime and a one -time fertilizer application.
bypassed it.
Trees or shrubs have begun
Remove them.
to grow on the swale or just
downslope of the level lip.
The bypass channel
Areas of bare soil and /or
Regrade the soil if necessary to remove the gully, and then reestablish
erosive gullies have formed.
proper erosion control.
Turf reinforcement is
Study the site to see if a larger bypass channel is needed (enlarge if
damaged or ripap is rolling
necessary). After this, reestablish the erosion control material.
downhill.
The filter strip
Grass is too short or too long
Maintain grass at a height of approximately three to six inches.
(if applicable).
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.
Sediment is building up on the
Remove the sediment and restabilize the soil with vegetation if
filter strip.
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 problem: soils, hydrology, disease, etc.
dying.
Remedy the problem and replace plants. Provide a one -time fertilizer
application.
Nuisance vegetation is
Remove vegetation by hand if possible. If pesticide is used, do not
choking out desirable species.
allow it to get into the receiving water.
The receiving water
Erosion or other signs of
Contact the NCDENR local Regional Office, or the 401 Oversight Unit
damage have occurred at the
at 919 - 733 -1786.
outlet.
STORM -EZ 4/30/2015
Version 1.4 O &M Manual Page 4 of 4