20040954 Ver 3_More Info Received_20080218

Soil & Environmental Consultants, PA
11010 Raven Ridge Road • Raleigh, North Carolina 27614, • Phone: [phone] • Fax: [phone]
www.SandEC.com
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pS AND Charlotte Office: Greensboro Office:
236 LePhillip Court, Suite C 3817-E Lawndale Drive
Concord, NC 28025 Greensboro, NC 27455
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]
Environmental Consultants, PA
Road - Raleigh, North Carolina 27614 - Phone: [phone] - Fax: [phone]
Department of Environment and Natural Resources
Division of Water Quality D
Attn: Cyndi Karoly/Ian McMillan ?? 2008
2321 Crabtree Boulevard, Suite 250 F F
Raleigh, NC 27604 WprEKa??'u? CN
??plDS STOR?JIWAtERB(?
Re: Reply to the Division of Water Quality's Request for More Information AND
Brightwood Trails Subdivision-Phases 5 & 6
Durham County, NC
To Mrs. Karoly and Mr. McMillan:
The purpose of this letter is to respond to your Request for More Information letter dated
January 15, 2008. The original questions/requests are copied below as they appear within
letter and are then followed by our response.
Additional Information Requested.
The riprap level spreaders that are proposed at the outlets of wet detention basins 3, 4, 5
and 6 do not meet the current state standards for diffuse flow. Please redesign these level
spreaders with concrete lips per Chapter 8 of the NC Division of Water Quality Stormwater
Best Management Practices Manual. In your resubmittal, please provide one completed
Level Spreader Supplement Form for each proposed level spreader (make sure to include
the Required Items Checklist with all required items attached). The BMP Manual and Level
Spreader Supplement Forms are available at: http://h2o.enr.state.nc.us/su/bmp forms.htm.
On January 22, 2008, we met with Annette Lucas to discuss this request item. As a
result of this meeting in addition to the fact that detention basin #3 is located within a
phase of the plan that did not require the review and approval of the NC Division of
Water Quality, Mrs. Lucas is not requiring any additional information for the level
spreader at detention basin #3. Additionally, because detention basin #6 is
conveying offsite drainage in addition to the steep slopes that would prevent the
proper design/construction of a level spreader in this location, Mrs. Lucas and Mrs.
Karoly removed the requirement of a level spreader in this location.
For the level spreaders in sequence with detention basins #4 and 5, supplemental
forms, required items checklists, signed/notarized Inspection & Maintenance
Agreements, signed/notarized deed restrictions along with level spreader and pre-
formed scour hole location photographs are included for your review.
Charlotte Office:
236 LePhillip Court, Suite C
Concord, NC 28025
Phone: [phone]
Fax: [phone]
Greensboro Office:
3817-E Lawndale Drive
Greensboro, NC 27455
Phone: [phone]
Fax: [phone]
February 18, 2008
S&EC Project # 8118.W2
DWQ Project # 04-0954, Ver. 3
2. If any of the filter strips down slope of wet detention basins 3, 4, 5 or 6 are not appropriate
for level spreaders, then please provide an alternative BMP that removes a minimum of
30% of total nitrogen. Please design the BMP per the requirements of the BMP Manual and
provide a BMP Supplement Form for each proposed BMP. See the website above for the
BMP Manual and the BMP Supplement Forms.
On January 22, 2008, we met with Annette Lucas to discuss this request item. As a
result of this meeting in addition to the fact that detention basin #3 is located within a
phase of the plan that did not require the review and approval of the NC Division of
Water Quality, Mrs. Lucas is not requiring any additional information for the level
spreader at detention basin #3. Additionally, because detention basin #6 is
conveying offsite drainage in addition to the steep slopes that would prevent the
proper design/construction of a level spreader in this location, Mrs. Lucas and Mrs.
Karoly removed the requirement of a level spreader in this location.
For the level spreaders in sequence with detention basins #4 and 5, supplemental
forms, required items checklists, signed/notarized Inspection & Maintenance
Agreements, signed/notarized deed restrictions along with level spreader and pre-
formed scour hole location photographs are included for your review.
3. Please show contour lines down slope of the detention basin 2 scour hole so that the DWQ
can confirm that it has been correctly sited per Chapter 8 of the BMP Manual.
On January 22, 2008, we met with Annette Lucas to discuss this request item. As a
result of this meeting in addition to the fact that detention basin #2 is located within a
phase of the plan that did not require the review and approval of the NC Division of
Water Quality, Mrs. Lucas is not requiring any additional information.
We anticipate that this answers all of the DWQ's questions in order to complete the final review
process requested for the written concurrence of Water Quality Certifications 3699 & 3704 and
Riparian Buffer Authorization. If you have any further questions or any additional explanation is
needed, please don't hesitate to call.
Sincerely,
Debbie Edwards
Environmental Specialist
CC:
Mr. Robert Ohmann-St. Lawrence Homes
Mr. David Dunn-Bass, Nixon & Kennedy, Inc.
Attachments:
1) Supplemental Forms for Level Spreader #4 & Pre-formed Scour Hole #5
2) Required Items Checklist for Level Spreader #4 & Pre-formed Scour Hole #5
3) Signed/Notarized Inspection & Maintenance Agreement for Level Spreader #4 & Pre-formed Scour Hole #5
4) Signed/Notarized Deed Restrictions for Level Spreader #4 & Pre-formed Scour Hole #5
5) Dated photographs for Level Spreader #4 & Pre-formed Scour Hole #5
6) Construction Drawings for Level Spreader #4 & Pre-formed Scour Hole #5
7) Drainage Area Map for Level Spreader #4 & Pre-formed Scour Hole #5
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STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all of the required information.
I. PROJECT INFORMATION
Project name Brigntwood Trails Subdivision, Phase 5
Contact name David L Dunn, PE
Phone number [phone]
Date February 15, 2008
Drainage area number LEVEL SPREADER for Detention Basin No. 4 Outlet
II.:DESIGN INFORMATION
------- ------- For Level Spreaders Receiving Flow From a BMP
Type of BMP Dry Detention Basin
Drawdown flow from the BMP 0.9 cis
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C coefficient
Peak flow from the 1 in/hr storm
Time of concentration
Rainfall intensity, 10-yr storm
Peak flow from the 10-yr storm
Where Does the Level Spreader Discharge ?
To a bioretention cell?
To a wetland?
To a fitter strip or riparian buffer?
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
Width of dense ground cover
Width of wooded vegetation
Total Width
Slope (from level lip to to top of bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level lip needed per cis
Answer "r to one of the following:
Length based on the 1 in/hr storm?
Length based on the 10-yr, 24-hr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
Length of the level lip
Are level spreaders in series?
Do not complete this section of the worksheet
e
fe
Do not complete this section of the worksheet.
Do not complete this section of the worksheet,
cfs Do not complete this section of the worksheet.
min
in/hr Do not complete this section of the worksheet.
cfs Do not complete this section of the worksheet.
N (Y or N)
N -- (Y or N)
Y (Y or N) Please complete filter strip characterization below.
NIA
0 ft
.20 ft
30 ft
50 ft
4.4 %
N (Y or N)
N/A - sg ft
44 fucfs
Y (Y or N)
N (YorN)
Y (Y or N)
0.9 cfs
N (Y or N)
40 ft
N (Y or N)
OK
OK
A bypass device must be provided.
#VALUE!
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.3 Parts I. and 11. Design Summary, page 1 of 2
.?.
:i f
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
y
Peak velocity in the channel during the 10-yr, 24-hr storm
Channel lining material
cfS Do not complete this section of the worksheet
Do not complete this section of the worksheet

l
Y
M
B
(Y or N) Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet,
ft Do not complete this section of the worksheet.
o;
M
Form SW401-Level Spreader, Fifter Strip, Restored Riparian Buffer-Rev.3 Parts I. and Ii. Design Summary, page 2 of 2
fN. REQUIRED ITEMS CHECKLIST
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.
Pagel Plan
Initials Sheet No.1
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,
Recorded 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,
Recorded drainage easement, and
Design at ultimate build-out.
I-? S 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. A date-stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
t? 5. An assurance that the installed system will meet design specifications upon initi I operation o ce the
?s ?
project is complete and th'elentare drainage area is stabilized.
6. A construt:tion sequence that shows how the level spreader will be protected from sedime t until the entire
drainage area is stabilized.
7. The supporting calculations.
8. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
9. A copy of the deed restriction.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.3 Part III, page 1 of 1
Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BRIGHTWOOD TRAILS SUBDIVISION
LEVEL SPREADER FOR
DETENTION BASIN NO.4
Filter Strip, Restored Riparian Buffer and Level Spreader
Inspection and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMW 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 inspection and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element: Potential problem: How I will remediate the roblem:
The entire filter strip Trash/ debris is present. Remove the trash/ debris.
stem
The flow splitter device The flow splitter device is Unclog the conveyance and dispose
(if applicable) dogged. of an sediment off-site.
The flow splitter device is Make any necessary repairs or
damaged. replace if damage is too large for
re air.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer I&M-Rev.2 Page 1 of 3
BMP element: Potential roblem: How I will rernediate the problem:
The swale and the level The swale is clogged with Remove the sediment and dispose
lip sediment 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 a 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 Oversi ht Unit at 919-733-1786.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer I&sM-Rev.2 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: Brightwood Trails Subdivision
BAP drainage area number: Level Spreader for Detention Basin No. 4
Print name: F. Robert Ohmann
Title: President, St. Lawrence Homes, Inc.
Address: 7200 Falls of Neuse Road, Suite 300, Raleigh, NC 27615
Signature:
Date: Z -1S zJ
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, -t l l(" - gtJIJ a Notary Public for the State of
\IJ
VL , County of do hereby certify that _
0?)M__n n personally appeared before me this J .
day of f&YLIA 10and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
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SEAL
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My commission expires 2n ?-?ZD 2
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer I&M-Rev2 ' Page '3 of 3
Low Density Residential Subdivisions
Deed Restrictions & Protective Covenances
In accordance with Title 15 NCAC 2H.1000, the Stormwater Management Regulations, deed restrictions
and protective covenants are required for Low Density Residential Subdivisions where lots will be
subdivided and sold. Deed restrictions and protective covenants are necessary to ensure that the
development maintains a "built-upon" area consistent with the applicable regulation governing the density
level.
1, F. Robert Ohmann acknowledge and affirm by my signature below, that I will cause the
following deed restrictions and protective covenants to be recorded for Brightwood Trails Subdivision, Ph 5
prior to the sale of any lot:
1. The following covenants are intended to ensure ongoing compliance with State Stomawater
Management Permit Number , as issued by the Division of Water Quality under
NCAC 2H.1000.
2. The State of North Carolina is made a beneficiary of these covenants to the extent necessary to
maintain compliance with the stormwater management permit.
3. These covenants are to run with the land and be binding on all persons and parties claiming
under them.
4. The covenants pertaining to stormwater may not be altered or rescinded without the express
written consent of the State of North Carolina, Division of Wafer Quality.
5. Alteration of the drainage as shown on the approved plan may not take place without the
concurrence of the Division of Water Quality.
6. The maximum allowable built-upon area per Jot is 201 square feet. This allotted amount
includes any built-upon area constructed within the lot property boundaries, and that portion of the
right-of-way between the front lot line and the edge of the pavement. Built upon area includes, but
is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate, and coquina, but does
not include raised, open wood decking, or the water surface of swimming pools.
7. In the case of a lot within CAMA's regulated AEC, where the Division of Coastal Management
calculates a different maximum allowable built-upon area for that lot than is shown herein, the
governing maximum built-upon area for that lot shall be the most restrictive of the two.
8. Filling in or piping of any vegetative conveyances (ditches, swales, etc.) associated with the
development except for average driveway crossings is strictly prohibited by any persons.
9. Each lot will maintain a 30 foot wide vegetated buffer between all impervious areas and surface
waters.
10. All roof drains allterminatee at least 30 foot from the mean high water mark of surface waters.
Signature: v, Date: -1
-
1 a Notary Public in the
State of NC- ,, County of O)at -
do hereby certify that FeXftn (w 6cr+ Oh V) personally appeared
before me this the -11C5 day of -eb r , 2002 , and acknowledge
the due execution of the foregoing instrument. Witness my hand and official seal,
Signatur
My Commission expires ?? ?Q[f
Form DRPC-5 Rev.I Page 1 of I
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.54
BRIGHTWOOD TRAILS SUBDIVISION
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PHOTO TAKEN: FEBRUARY 11, 2008
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NCDENR °
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all of the required information.
f PROJECT INFORMATION
Project name Brightwood Trails Subdivision, Phase 5
Contact name David L. Dunn, PE
Phone number (919)8514422
Date February 15, 2008
Drainage area number PREFORMED SCOUR HOLE for Detention Basin No. 5 Outlet
For Level Spreaders sRReceiving Flow From a '
BMP -
Type of BMP Dry Detention Basin
Drawdown flow from the BMP 1.1: cfs
For Level Spreaders Receiving Flow from the Drainage Area Do not complete this section of the worksheet.
Drainage area ftZ
Impervious surface area ft1
Percent impervious Do not complete this section of the worksheet.
Rational C coefficient Do not complete this section of the worksheet.
Peak flow from the 1 in/hr storm cfs Do not complete this section of the worksheet.
Time of concentration min
Rainfall intensity, 1 0-yr storm in/hr Do not complete this section of the worksheet.
Peak flow from the 10-yr storm cfs Do not complete this section of the worksheet.
Where Does the Level Spreader Discharge?
To a bioretention cell? N (Y or N)
To a wetland? N (Y or N)
To a filter strip or riparian buffer? Y (Y or N) Please complete filter strip characterization below.
Other (specify) NIA
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass NIA It
Width of dense ground cover NIA It
Width of wooded vegetation NIA ft
Total width NIA ft Total width not computed correctly; check addition.
Slope (from level lip to to top of bank) 1.9 %
Are any draws present? N (Y or N) OK
Level Spreader Design
Forebay surface area NIA sq ft OK
Feet of level lip needed per cfs #VALUE! fVds
Answer "Y" to one of the following:
Length based on the 1 in/hr storm? Y (Y or N)
Length based on the 10-yr, 24-hr storm? -N (Y or N)
Length based on the BMP discharge rate? Y (Y or N)
Design flow 1.1 cfs #VALUE!
Is a bypass device provided? N - (Y or N) A bypass device must be provided.
Length of the level lip N/A ft Level spreader may not be more than 130 feet long.
Are level spreaders in series? N (Y or N)
Form SW401-Level Spreader, Fitter Strip, Restored Riparian Buffer-Rev-3 Parts I. and il. Design Summary, page 1 of 2
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
y
Peak velocity in the channel during the 10-yr, 24-hr storm
Channel lining material

t Y 1
i----- -------- --------------?
M
M
B
(Y or N) Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
cfs Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
•
Form SW401-Level Spreader, Fitter Strip, Restored Riparian Buffer-Rev.3 Parts I. and II. Design Summary, page 2 of 2
lIL REQUIRED ITEMS CHECKLIST
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.
Paget Plan
Initials Sheet No.
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,
- Recorded drainage easement and public right of way (ROW), and
- Boundaries of drainage easement. )ti
2. Plan details (1" = 30' or larger) for the I®vel-" showing:
- Forebay (if applicable),
- High flow bypass system, -e ?-
- One foot topo lines between the level lip and top of stream bank,
- Recorded drainage easement, and
- Design at ultimate build-out. 1 --- -?? ( + 1 lY
3. Section view of the leua4(1" = 20' or larger) showing:
Underdrain system (if applicable),
Level lip,
Upslope channel, and
Downslope filter fabric.
??- 4. A date-stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
5. An assurance that the installed system will meet design specifications upon ti operatio once the
prole I complete and the entir drainage area is stabilized.
1
G 3? 6. A construction fquence that shows how the evel spreader will be protected from sediment until the entire
drainage area is stabilized. _'??
L3D - 7. The supporting calculations.
8. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
9. A copy of the deed restriction.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.3 Part III, page 1 of 1
Permit Number:
(to be provided by DWO)
BRIGHTWOOD TRAILS SUBDIVISION
PREFORMED SCOUR HOLE FOR
DETENTION BASIN NO.5
Preformed Scour Hole
Inspection and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
- Once a year, the area around the preformed scour hoe will be reseeded if
necessary to maintain a dense growth of vegetation
- Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
After the preformed scour hole is constructed, 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 inspection and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element. Potential problem: How I will remediate the problem:
The entire preformed Trash/ debris is present. Remove the trash/debris.
scour holes stem
The preformed scour The scour hole is clogged Remove the sediment and dispose
hole and exit area with sediment of it off-site.
The level exit area is settled, Repair the exit area by filling,
undercut, eroded or regrading, etc. to provide a level exit
otherwise damaged. area. Reseed as needed.
There is erosion around the Regrade the soil to create a berm
exit area of the preformed that is level around the perimeter of
scour hole. the preformed scour hole and then
plant a ground cover and water
until it is established. Provide lime
and a one-time fertilizer application.
Trees or shrubs have begun Remove them.
to grow in the area
immediately adjacent to the
reformed scour hole.
Areas of bare soil and/or Re grade the soil if necessary to
Permit Number:
(to be provided by DWQ)
erosion gullies have formed remove the gully, and then plant a
in the exit area around the ground cover and water until it is
preformed scour hole. established. Provide lime and a
one-time fertilizer application.
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.
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: Brightwood Trails Subdivision
BMP drainage area number: Preformed Scour Hole for Detention Basin No. 5
Print name: F. Robert Ohmann
Title: President St. Lawrence Homes Inc.
Address: 7200 Falls of Neuse Road, Suite 300, Raleigh. NC 27615
Phone: (919)M4_-Q00
Date: -IS n?
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.
Permit Number:
(to be provided by DWQ)
I, r UJ (1 , a Notary Public for the State of
N6 County of , do hereby certify that
?111,GC? OhMO? ?1 rl personally appeared before me this
day of h e, and acknowledge the due execution of the
forgoing filter strip, rip ian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
? jpT ?A-R),
-
PUBLICc;
00
SEAL

My commission expires 2'2A-- Zook
Low Density Residential Subdivisions
Deed Restrictions & Protective Covenances
In accordance with Title 15 NCAC 21-9.1000, the Stormwater Management Regulations, deed restrictions
and protective covenants are required for Low Density Residential Subdivisions where lots will be
subdivided and sold. Deed restrictions and protective covenants are necessary to ensure that the
development maintains a "built-upon" area consistent with the applicable regulation governing the density
level.
1, F. Robert Olunann acknowledge and affirm by my signature below, that I will cause the
following deed restrictions and protective covenants to be recorded for Brightwood Trails Subdivision, Ph 6
prior to the sale of any lot:
9. The following covenants are intended to ensure ongoing compliance with State Stormwater
Management Permit Number as issued by the Division of Water Quality under
NCAC 2H. 9000.
2 The State of North Carolina is made a beneficiary of these covenants to the extent necessary to
maintain compliance with the stormwater management permit.
3. These covenants are to run with the land and be binding on all persons and parties claiming
under them.
4. The covenants pertaining to stormwater may not be altered or rescinded without the express
written consent of the State of North Carolina, Division of Water Quality.
5. Alteration of the drainage as shown on the approved plan may not take place without the
concurrence of the Division of Water Quality.
6. The maximum allowable built-upon area per lot is 2,601 square feet. This allotted amount
Includes any built-upon area constructed within the lot property boundaries, and that portion of the
right-of-way between the front lot line and the edge of the pavement. Built upon area includes, but
is not limited to, structures, asphalt, concrete, gravel, brick; stone, state, and coquina, but does
not include raised, open wood decking, or the water surface of swimming pools.
7. In the case of a lot within CAMA's regulated AEC, where the Division of Coastal Management
calculates a different maximum allowable built-upon area for that lot than is shown herein, the
governing maximum built-upon area for that lot shall be the most restrictive of the two.
8. Filling in or piping of any vegetative conveyances (ditches, swales, etc.) associated with the
development except for average driveway crossings is strictly prohibited by any persons.
9. Each lot will maintain a 30 foot wide vegetated buffer between all impervious areas and surface
waters.
90. All roof drains t t inate at least 30 foot from the mean high watermark of surface waters.
Signature: P4-,Z. Date: L'}S'•-O?
I, 1 V 10A ` ??-i?1 SP (,tJ a Notary Public in the
State of County of U U Gl e
do hereby certify that R131"On O O"r\ personally appeared
before me this the _ day of? 20Q.-, and acknowledge
the due execution of the foregoing instrument. Witness my hand and official seal,
°N oiissis????o?'!
SEAL
Signature 'FA
2
My Commission expires
'i sr^`•?o feu .?•:ti xti ..
c° d?eamaoa . ?°
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