SW8030222_COMPLIANCE_20100611

DOC TYPE
STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
❑ CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
OMPLIANCE EVALUATION INSPECTION
DOC DATE o�v 6z,
YYYYMMDD

Hammers, Angela
From: Hammers, Angela
Sent: Friday, June 11, 2010 1:47 PM
To: '[e-mail]; '[e-mail]'
Subject: Crown Ridge at Tidalholm Transfer of Ownership
Ms. Blanton and/or Mr. Weaver,
I spoke with Mr. Weaver today after locating the Operation & Maintenance agreements signed by Ms. Cheri Clabby,
President of the Crown Ridge at Tidalholm HOA. As I spoke with Mr. Weaver, what I did not realize is that the transfer of
ownership papers received by DWQ back in 2006 would be a different name/address for the HOA President.
So, just to be clear in the transfer, please have Ms. Clabby sign the transfer of ownership request form. The weblink for
the form is:
http://h2o.enr.state.nc.uslsuldocuments/SWPermitOwnership-NameChangeFormO8O8O8.pdf
I will be out of town next week, but if you have questions, don't hesitate to contact my colleague, David Cox here at
DWQ. The transfer of the permit should be quick upon receipt of the signed/notarized transfer request (and my return
to the office on the 215`)
Thanks again.
Sincerely,
Angel Hammers (Please note my new email address is angela.ham [e-mail])
Environmental Specialist
NC Department of Environment and Natural Resources
Wilmington Regional Office
127 Cardinal Drive Ext.
Wilmington, NC 28405
Office: 910.796.7215
Fax: [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.

State Stormwater Management Systems
Permit No. SW8 030222
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY RESIDENTIAL DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Ms. Cheri Clabby & Crown Ridge Homeowners Association, Inc.
Crown Ridge at Tidalholm
Passage Gate Way, New Hanover County
FOR THE
operation and maintenance of 4 infiltration basins in compliance with the provisions of 15A
NCAC 2H .1000 effective September 1, 1995 (hereafter referred to as the "stormwater rules')
and the approved stormwater management plans and specifications and other supporting data
as attached and on file with and approved by the Division of Water Quality and considered a
part of this permit.
This permit shall be effective from the date of issuance until May 23, 2013 and shall be subject
to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as
described on page 3 of this permit, the Project Data Sheet. The subdivision is permitted
for 45 lots, each allowed 4,500 square feet of built -upon area.
3. Approved plans and specifications for this project are incorporated by reference -and are
enforceable parts of the permit.
4. All stormwater collection and treatment systems must be located in either dedicated
common areas or recorded easements. The final plats for the project will be recorded
showing all such required easements, in accordance with the approved plans.
2

DIVISION OF WATER QUALITY
PROJECT DATA SHEET
Project Name: Crown Ridge at Tidalholm
Permit Number: SW8 030222
Location: Passage'Gate Way, New Hanover County
Applicant: Ms. Cheri Clabby, President
Mailing Address: Crown Ridge Homeowners Association, Inc.
316 Passage Gate Way
Wilmington, NC 28412
Receiving StreamlRiver Basin:
Cape Fear River / Cape Fear
Stream Index Number:
CPF17 18-(71)
Classification of Water Body:
"SC"
Basin Number:
1A
1113
2
3
Drainage Area, sq. ft.:
100,624
214,315
145,055
173,804
Onsite, sq. ft.:
100,624
167,706
145,055
173,804
Offsite, sq. ft.:
0
46,609
0
0
Total Impervious Surfaces, sq. ft.:
36,232
88,583
66,577
74,630
Basin Depth, feet:
5
5
6
4
Bottom Elevation, FMSL:
18.0
18.0
18.0
18.0
Permitted Surface Area at bottom, sq. ft.:
1,881
1,947
2,865
1,276
Permitted Storage Volume, cubic ft.:
6,275
15,073
11,197
12,642
Temporary Storage Elevation, FMSL:
19.96
20.79
20.81
19.88
Seasonal High Water Table Elevation, FMSL:
13.83
13.83
15.75
13.33
Expected Infiltration Rate, in/hr:
6
6
6
6
Time to draw down, hours:
31
42
23
72
II. SCHEDULE OF COMPLIANCE
1. No homeownerllot owner/developer shall fill in, alter, or pipe any drainage feature (such
as swales) shown on the approved plans as part of the stormwater management system
without submitting a revision to the permit and receiving approval from the Division.

State Stormwater Management Systems
Permit No. SW8 030222
2. The permittee is responsible for verifying that the proposed built -upon area for the entire
lot, including driveways and sidewalks, does not exceed the allowable built -upon area.
Once the lot transfer is complete, the built -upon area may not be revised without
approval from the Division of Water Quality, and responsibility for meeting the built -upon
area limit is transferred to the individual property owner.
3. If an Architectural Review Committee (ARC) is required to review plans for compliance
with the BUA limit, the plans reviewed must include all proposed built -upon area. Any
approvals given by the ARC do not relieve the homeowner of the responsibility to
maintain compliance with the permitted BUA limit.
4. The permittee shall submit to the Director and shall have received approval for revised
plans, specifications, and calculations prior to construction, for any modification to the
approved plans, including, but not limited to, those listed below:
a. Any revision to the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area.
e. Further subdivision, acquisition, or sale of all or part of the project area. The
project area is defined as all property owned by the permittee, for which
Sedimentation and Erosion Control Plan approval or a CAMA Major permit was
sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
5. The Director may determine that other revisions to the project should require a
modification to the permit.
6. The Director may notify the permittee when the permitted site does not meet one or
more of the minimum requirements of the permit. Within the time frame specified in the
notice, the permittee shall submit a written time schedule to the Director for modifying
the site to meet minimum requirements. The permittee shall provide copies of revised
plans and certification in writing to the Director that the changes have been made.
7. . The stormwater management system shall be constructed in its' entirety, vegetated and
operational for its intended use prior to the construction of any built -upon surface.
8. If the stormwater system was used as an Erosion Control device, it must be restored to
design condition prior to operation as a stormwater treatment device, and prior to
occupancy of the facility.
9. Decorative spray fountains will not be allowed in the stormwater treatment system
10. Permanent seeding requirements for the stormwater control must follow the guidelines
established in the North Carolina Erosion and Sediment Control Planning and Design
Manual.
11. The permittee shall at all times provide the operation and maintenance necessary to
assure that all components of the permitted stormwater system function at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in its
entirety and maintenance must occur at the scheduled intervals including, but not limited
to:
Page 4 of 7

State Stormwater Management Systems
Permit No. SW8 030222
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and re -vegetation of side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of structures, orifice, catch basins and piping.
g. Access to all components of the system must be available at all times.
12. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DWQ. The records will indicate the date, activity, name of
person performing the work and what actions were taken.
13. Prior to the sale of any lot, deed restrictions must be recorded which limit the built -upon
area per lot to the amount as shown on the Project Data Sheet, per Section I, Part 2.
The recorded statements must follow the form:
a. The following covenants are intended to ensure ongoing compliance with State
Stormwater Management Permit Number SW8 030222, as issued by the Division
of Water Quality under NCAC 2H.1000.
b. The State of North Carolina is made a beneficiary of these covenants to the
extent necessary to maintain compliance with the Stormwater Management
Permit.
c.. These covenants are to run with the land and be binding on all persons and
parties claiming under them.
d. 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.
e. Alteration of the drainage as shown on the approved plans may not take place
without the concurrence of the Division of Water Quality.
The maximum built -upon area per lot is 4,500 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, coquina and parking areas, but does not
include raised, open wood decking, or the water surface of swimming pools.
g. Lots within CAMA's Area of Environmental Concern may be subject to a
reduction in their allowable built -upon area due to CAMA regulations.
h. All runoff on the lot must drain into the permitted system. This may be
accomplished through providing roof drain gutters which drain to the street,
grading the lot to drain toward the street, or grading perimeter swales and
directing them into the pond or street. Lots that naturally drain into the system are
not required to provide these measures.
14. Prior to transfer of the permit, the stormwater facilities must be inspected by DWQ
personnel, and determined to be in compliance with all permit conditions. Any items not
in compliance must be repaired or replaced to design condition prior to the transfer.
Records of maintenance activities performed to date will be required.
Page 5 of 7

State Stormwater Management Systems
Permit No. SW8 030222
15. A copy of the recorded deed restrictions must be submitted to the Division within 30
days of the date of recording the plat, and prior to selling lots. The recorded copy must
bear the signature of the Permittee, the deed book number and page, and
stamp/signature of the Register of Deeds.
16. This permit shall become voidable unless the facilities are constructed in accordance
with the conditions of this permit, the approved plans and specifications, and other
supporting data.
17. Built upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick,
stone, slate, coquina and parking areas, but does not include raised, open wood
decking, or the water surface of swimming pools.
Ill. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director. In the
event there is a desire for the facilities to change ownership, or there is a name change
of the Permittee, a "Name/Ownership Change Form" must be submitted to the Division
of Water Quality accompanied by appropriate documentation from the parties involved,
including as may be required, but not limited to, a deed of trust, recorded deed
restrictions, Designer's Certification and a signed Operation and Maintenance plan. The
project must be in good standing with DWQ. The approval of this request will be
considered on its merits and may or may not be approved.
2. The permittee is responsible for compliance with the terms and conditions of this permit
until such time as the Director approves the transfer request.
3. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to enforcement action by the Division of Water Quality, in accordance with
North Carolina General Statute 143-215.6A to 143-215.6C.
4. The issuance of this permit does not preclude the Permittee from complying with any
and all statutes, rules, regulations, or ordinances which may be imposed by other
government agencies (local, state, and federal) which have jurisdiction.
5. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including
those as may be required by this Division, such as the construction of additional or
replacement stormwater management systems.
6. The permit may be modified, revoked and reissued or terminated for cause. The filing of
a request for a permit modification, revocation and reissuance or termination does not
stay any permit condition.
7. Permittee grants permission to staff of the DWQ to access the property for the purposes
of inspecting the stormwater facilities during normal business hours.
8. The permittee shall notify the Division of any name, ownership or mailing address
changes within 30 days.
9. A copy of the approved plans and specifications shall be maintained on file by the
Permittee for a minimum of ten years from the date of the completion of construction.
Page 6 of 7

State Stormwater Management Systems
Permit No. SW$ 030222
10. The permittee shall submit a permit renewal application request at least 180 days prior
to the expiration date of this permit. The renewal request must include the applicable
documentation and the processing fee.
11. If the use of permeable pavement is desired, this permit must be modified to add the
permeable pavement conditions.
Permit issued this the 215' day of June, 2010.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION .
lat, yojeen/N. 6wins, uirector
Division WWater Quality
By Authority of the Environmental Management Commission
rage 7 of 7

Permit Number:5W? 030ZZ2
(to be provided by DWQ)
Drainage Area Number_ I -A
Infiltration Basin 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:
- The drainage area will be carefully managed to reduce the sediment load to the
infiltration basin.
- ImmediateIy after the infiltration basin is established, the vegetation will
watered twice weekly if needed until the plants become established (co fly j9
six weeks). L
- No portion of the infiltration basin will be fertilized after the initial fertilizati `�cS
that is required to establish the vegetation.
- The vegetation in and around the basin will be maintained at a height of
approximately six dnches.
After the infiltration basin is established, it will be inspected once a quarter and within
24 hours after every storm event greater than 1.4 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
infiltration basin
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
The inlet device: pipe or
The pipe is clogged (if
Unclog the pipe. Dispose of the
swale
applicable .
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
a licable).
Erosion is occurring in the
Regrade the swale if necessary to
Swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future Eroblems with erosion.
Form SW401-Infiltration Basin O&M-Rev.3
Page 1 of 3

.0

BMP element:
The forebay
The main treatment area
The embankment
The outlet device
The receiving water
Potential problem:
Sediment has accumulated
and reduced the depth to 75%
of the original design depth.
Erosion has occurred or
riprap is displaced.
Weeds are present.
A visible layer of sediment
has accumulated.
Water is standing more than
5 days after a storm event.
Weeds and noxious plants are
growing in the main
treatment area.
Shrubs or trees have started
to grow on the embankment.
An annual inspection by an
appropriate professional
shows that the embankment
needs repair.
Clogging has occurred.
The outlet device is damaged
Erosion or other signs of
damage have occurred at the
outlet.
How I will remediate the problem:
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Remove the weeds, preferably by
hand. If pesticides are used, wipe
them on the plants rather than
spraying.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP. Replace any media that
was removed in the process.
Revegetate disturbed areas
immediately.
Replace the top few inches of filter
media and see if this corrects the
standing water problem. If so,
revegetate immediately, If not,
consult an appropriate professional
for a more extensive repair.
Remove the plants by hand or by
wiping them with pesticide (do not
spray).
Remove shrubs or trees
immediately.
Make all needed repairs.
Clean out the outlet device. Dispose
of the sediment off -site.
Repair or replace the outlet device.
Contact the NC Division of Water
Quality 401 Oversight Unit at 919-
733-1786.
Form 5W401-Infiltration Basin O&M-Rev.3
Page 2 of 3

Permit Number: SW 8 030 ZZZ
(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:., C900- 21m4G A-n:: ) rt)aLAo;-m
BMP drainage area number: )-A
Print name -
Title::
Address:_
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, etfoeyL_ _ A - 13tAks>a , a Notary Public for the State of
)400n4 OAat L,,, A , County of j� ,,h,�-7z , do hereby certify that
Cam, `L Ci.1 RZY personally appeared before me this zg
day of MAq , Zo, n , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official sea],
�.� pN OA;
m0
J
U�
SEAL
My commission expires
JLALY Z -7. ZQ) 3
MAY 2' 5 Md
'2?L{"t 2
Form SW40 I -Infiltration Basin O&M-Rev.3 Page 3 of 3

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Permit Number: SW? 03oZZZ
(to be provided by DWQ)
Drainage Area Number: i-B
Infiltration Basin 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:
- The drainage area will be carefully managed to reduce the sediment load to the
infiltration basin.
- Immediately after the infiltration basin is established, the vegetation will be
watered twice weekly if needed until the plants become established (commonly
six weeks).
- No portion of the infiltration basin will be fertilized after the initial fertilization
that is required to establish the vegetation.
The vegetation in and around the basin will be maintained at a Peig��Ejj
approximately six inches.
MAY 2•5 2010
After the infiltration basin is established, it will be inspected once a q and within
24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a staff
County). Records of operation and maintenance will be kept in a known set Iocation
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element.
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present,
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
infiltration basin
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer apRLation.
The inlet device: pipe or
The pipe is clogged (if
Unclog the pipe. Dispose of the
Swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Form SW401-Infiltration Basin O&M-Rev.3
Page 1 of 3

BMP element:
The forebay
The main treatment area
The embankment
The outlet device
The receiving water
Potential problem:
Sediment has accumulated
and reduced the depth to 75%
of the original design depth.
Erosion has occurred or
riprap is displaced.
Weeds are present.
A visible layer of sediment
has accumulated.
Water is standing more than
5 days after a storm event.
Weeds and noxious plants are
growing in the main
treatment area.
Shrubs or trees have started
to grow on the embankment.
An annual inspection by an
appropriate professional
shows that the embankment
needs repair.
Clogging has occurred.
The outlet device is damaged
Erosion or other signs of
damage have occurred at the
outlet.
_How I will remediate the problem:
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Remove the weeds, preferably by
hand. If pesticides are used, wipe
them on the plants rather than
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP. Replace any media that
was removed in the process.
Revegetate disturbed areas
immediately.
Replace the top few inches of filter
media and see if this corrects the
standing water problem. If so,
revegetate immediately. If not,
consult an appropriate professional
for a more extensive repair.
Remove the plants by hand or by
wiping them with pesticide (do not
sr)rav).
Remove shrubs or trees
immediately.
Make all needed repairs.
Clean out the outlet device. Dispose
of the sediment off -site.
Repair or replace the outlet device.
Contact the NC Division of Water
Quality 401 Oversight Unit at 919-
733-1786.
Form SW401-Infiltration Basin O&M-Rev.3 Page 2 of 3

Permit Number: S IuJ$ 03OZZ-Z
(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: C,20W-. ro Prr_7roAU�OLM - -- -
BMP drainage area number: ) -
Print nam
Title: ffD
Address: 1 (Q L� y%2—
Phone: q l d ` 2 ` r✓
Signature: -
Date: 5 ( ;�- 5l 0
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, &091L A.i3LAksTDQ , a Notary Public for the State of
OCA--74 CA2aL_yuA , County of " 17�-s�, , do hereby certify that
(} , -T�, CLAram personally appeared before me this zs
day of 1,4&Q , zn,a , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official seal,
1111111
1a �+ CHF'''�.
•�``�
.p
"; ar
so
SEAL
My commission expires c� 14 z)/ Z -7 Zd J Z
Form SW401-Infiltration Basin O&M-Rev.3
Page 3 of 3

I I I s N . I . , . , . ,

o
Permit Number: 5uJ8 0307-2Z
(10 be provided by DWQ)
Drainage Area Number: Z
Infiltration Basin 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:
The drainage area will be carefully managed to reduce the sediment load to the
infiltration basin.
Immediately after the infiltration basin is established, the vegetation will be
watered twice weekly if needed until the plants become established (commonly
six weeks).
No portion of the infiltration basin will be fertilized after the initial fertilization
that is required to establish the vegetation.
— The vegetation in and around the basin will be maintained at a height of
approximately six inches.
After the infiltration basin is established, it will be inspected once a quarter and within
24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
infiltration basin
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
The inlet device: pipe or
The pipe is clogged (if
Unclog the pipe. Dispose of the
swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe,
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the Swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
f ith erosion.
MAY � 5 2D10
Form SW401-Infiltration Basin O&M-Rev.3
Page 1 of 3

BMP element:
The forebay
The main treatment area
The embankment
The outlet device
The receiving water
Potential problem:
Sediment has accumulated
and reduced the depth to 75%
of the original design depth.
Erosion has occurred or
riprap is displaced.
Weeds are present.
A visible layer of sediment
has accumulated.
Water is standing more than
5 days after a storm event.
Weeds and noxious plants are
growing in the main
treatment area.
Shrubs or trees have started
to grow on the embankment.
An annual inspection by an
appropriate professional
shows that the embankment
needs repair.
Clogging has occurred.
The outlet device is damages
Erosion or other signs of
damage have occurred at the
outlet.
How I will remediate the problem:
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Remove the weeds, preferably by
hand. If pesticides are used, wipe
them on the plants rather than
spraying.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP. Replace any media that
was removed in the process.
Revegetate disturbed areas
immediately.
Replace the top few inches of filter
media and see if this corrects the
standing water problem. If so,
revegetate immediately. If not,
consult an appropriate professional
for a more extensive repair.
Remove the plants by hand or by
wiping them with pesticide (do not
sprav).
Remove shrubs or trees
immediately,
Make all needed repairs.
Clean out the outlet device. Dispose
of the sediment off -site.
Repair or replace the outlet device.
Contact the NC Division of Water
Quality 401 Oversight Unit at 919-
733-17.86.
Form SW40I-infiltration Basin O&M-Rev.3
Page 2 of 3

Permit Number; 5WE 0302Z2
(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: `(Znl,O,.S 1�+nr Lk-r } s„A%_"(Mt_M,........„_,..—
BMP drainage area number: z
Print nap: C�e Ck b V
Title: I rl
Address:
Phone: 0 — /
Signature:
Date: 5'
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, C ri ��v� I , a Notary Public for the State of
)� t7 R.7A CA P_b L j .1A , County of ? -_ym c—�L , do hereby certify that
�CkhEEg- __11_ CLAGAA personally appeared before me this. 2c:
day of M A,:�( , zb I a , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires_ JL4Ld 2 7, 2.D �3
10025j0t
Form SW40 I -Infiltration Basin O&M-Rev.3
Page 3 of 3

11
t'i
1

PermitNamber. S-WT 030222
(to be provided by DWQ)
Drainage Area Number: A
Infiltration Basin 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:
The drainage area will be carefully managed to reduce the sediment load to the
infiltration basin.
Immediately after the infiltration basin is established, the vegetation will be
watered twice weekly if needed until the plants become established (commonly
six weeks).
— No portion of the infiltration basin will be fertilized after the initial fertilization
that is required to establish the vegetation.
— The vegetation in and around the basin will be maintained at a height of
approximately six inches.
After the infiltration basin is established, it will be inspected once a quarter and within
24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a CoastaI
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:
Potentialproblem:
How I will remediate theroblem:
The entire BMP
Trash/debris is present.
Remove the trash debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
infiltration basin
erosive gullies have formed,
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application,
The inlet device: pipe or
The pipe is clogged (if
Unclog the pipe. Dispose of the
Swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future probleT§_yy4th erosion,
JL%.A-�d 7IV�p
MAY 2�5 2050
Form SW401-Infiltration Basin O&M-Rev.3 Page 1 of 3

BMP element:
The forebay
The main treatment area
The embankment
The outlet
The receiving water
Potential problem:
Sediment has accumulated
and reduced the depth to 75%
of the original design depth.
Erosion has occurred or
riprap is displaced.
Weeds are present.
A visible layer of sediment
has accumulated.
Water is standing more than
5 days after a storm event.
Weeds and noxious plants are
growing in the main
treatment area.
Shrubs or trees have started
to grow on the embankment.
An annual inspection by an
appropriate professional
shows that the embankment
needs repair.
Clogging has occurred.
The outlet device is damaged
Erosion or other signs of
damage have occurred at the
outlet.
How I will remediate the problem:
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Remove the weeds, preferably by
hand. If pesticides are used, wipe
them on the plants rather than
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP. Replace any media that
was removed in the process.
Revegetate disturbed areas
Replace the top few inches of filter
media and see if this corrects the
standing water problem. If so,
revegetate immediately. If not,
consult an appropriate professional
for a more extensive repair,
Remove the plants by hand or by
wiping them with pesticide (do not
sorav).
Remove shrubs or trees
immediately.
Make all needed repairs.
Clean out the outlet device. Dispose
of the sediment off -site.
Repair or replace the outlet device.
Contact the NC Division of Water
Quality 401 Oversight Unit at 919-
733-1786.
Form SW401-Infiltration Basin O&M-Rev.3
Page 2 of 3

Permit Number:
(10 be provided by DWQ)
I acknowledge and agree by my signature below that 1 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: C fZOWw 4 1RQ�4E AT 3 noa,LAOLYY%
BMP drainage area number: 3
Print name: ("'Ike, e I F C lab y r
Title: l Ir�_�E LIB �`� �� `q—
Address: �( (p P�[SS� ��tc �-/ w� �:' f ✓1 �° r "C���
Phone
Signat
Dater
Note: The legally responsible parry 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, &L-- UI.. I� �N�U , a Notary Public for the State of
1�n2;N CA2oti_wA , County of -tne2 , do hereby certify that
lt}�, " -tAAAy personally appeared before me this zS
day of MA-q , zo, O , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires jutz 7. Z e t3
MAY 16 ZA
Form SW401-Inriltration Basin O&M-Rev.3
Page 3 of 3

Central Files: APS SWP
06/21/10
Permit Number SW8030222
Permit Tracking Slip
Program Category
Status Project Type
State SW
Active Minor modification
Permit Type
Version Permit Classification
State Stormwater
1.10 Individual
Primary Reviewer
angela.hammers
Coastal SW Rule
Coastal Stormwater - 1995
Permitted Flow
Facility Name
Crown Ridge at Tidalholm
Location Address
Passage Gate Way
Wilmington NC
28412
Owner Name
Bill Clark Homes Of Wilmington LLC
Scheduled
Orig Issue App Received Draft Initiated Issuance
05/23/03 06/17/10
eaulated Activities
State Stormwater - High Density
State Stormwater - Infiltration System
Outfall NULL
Waterbody Name
Permit Contact Affiliation
Major/Minor Region
Minor Wilmington
County
New Hanover
Facility Contact Affiliation
Owner Type
Non -Government
caner Affiliatian�
Sonya A. Culler
a L�
430 Eastwood Rd
Wilmington NC
28403
Public Nn 'ce Issu Effective Expiration
6121/10 06/21/10 05/23/13
Reauested/Received Events
Deed restriction requested
Deed restriction received
Stream Index Number Current Class Subbasin

A�
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Colleen H. Sullins
Governor Director
May 19, 2010
Mr. John Conner, Manager or Mr. Edward Clark, Manager
Bill Clark Homes of Wilmington, LLC
430 Eastwood Drive
Wilmington, NC 28403
Subject: NOTICE OF INSPECTION
Crown Ridge at Tidal Holm
Permit No. SW8 030222
New Hanover County
Dear Mr. Conner or Mr. Clark:
Dee Freeman
Secretary
On May 18, 2010, Angela Hammers of the Wilmington Regional Office of the Division of Water
Quality (DWQ) inspected Crown Ridge at Tidal Holm in New Hanover County to determine
compliance with Stormwater Management Permit Number SW8 30222 issued on May 23, 2003,
DWQ file review and site inspection revealed that the site is compliant with the terms and
conditions of this permit. Please find a copy of the completed form entitled "Compliance
Inspection Report" attached to this letter.
Please be advised that you are required to comply with the terms, conditions and limitations of
your Stormwater Management Permit under Title 15A North Carolina Administrative Code 2H
.1003 and North Carolina General Statute 143-214.7, including operation and maintenance of
your permitted stormwater system.
If the project has changed name, ownership or mailing address, a formal change of
name/ownership form must be submitted to DWQ within 30 calendar days detailing the change.
Please provide the name, mailing address and phone number of the person or entity that is now
responsible for this permit.
Please be advised that violations of your Stormwater Management Permit may be subject to the
assessment of civil penalties of up to $25,000 per day per violation. If you have any questions
please contact Angela Hammers at the Wilmington Regional Office, telephone number (910)-
796- 7215,
Sincerely,
Angela Hammers
Environmental Specialist
Enclosure. Compliance Inspection Report
GDSlakh: S:IWQSISTORMWATERIINSPECT1030222.may 10
cc: John Hennessy-NPS-ACOU
Landon Weaver, Bill Clark Homes
WiRO Files-, DWQ Central Files
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405
Phone: [phone] L FAX: [phone] l Customer Service: 1-877-623-6748
Internet: www.ncwaterquality,org
One
NorthCarnlina
;Vatltudif
An Equal Opporlunity V Affirmative Action Employer

Compliance Inspection Report
Permit: SW8030222 Effective: 05/23/03 Expiration: Owner: Bill Clark Homes Of Wilmington LLC
Project: Crown Ridge at Tidalholm
County: New Hanover
Passage Gate Way .
Region: Wilmington
Wilmington NC 28412
Contact Person: Sonya A Culler Title: Manager Phone: [phone]
Directions to Project:
From US 4211NC132 intersectioni, South on US 421 to Sanders Rd. Sanders to River Rd., South on River Rd. to River Breeze Drive.
River Breeze Dr. to Lipscomb, Lipscomb North to Passage Gate, right o Passage Gate.
Type of Project: State Stormwater - High Density State Stormwater - Infiltration System
Drain Areas: 1 -
On -Site Representative(s):
Related Permits:
Inspection Date: 05/18/2010 Entry Time: 01:00 PM
Primary Inspector: Angela K Hammers
Secondary Inspector(s):
Reason for Inspection: Follow-up
Permit Inspection Type: State Stormwater
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
E State Stormwater
(See attachment summary)
Exit Time: 01:30 PM
Phone: [phone].
Ext.7317
Inspection Type: Stormwater
Page: 1

Permit: SW8030222 Owner - Project: Bill Clark Homes Of Wilmington LLC
Inspection Date: 0511812010 Inspection Type: Stormwater Reason for Visit: Follow-up
Inspection Summary:
The requested repairs from the compliance inspection dated May 6, 2010 have been conducted.
File Review
Yes
No NA
NE
Is the permit active?
• ®
Q Q
Q
Signed copy of the Engineers certification is in the file?
0000
Signed copy of the Operation & Maintenance Agreement is in the file?
■
Q Q
Q
Copy of the recorded deed restrictions is in the file?
■
Q Q
❑
Comment:
SW Measures
Yes
No NA
NE
Are the SW measures constructed as per the approved plans?
■
Q Q
❑
Are the inlets located per the approved plans?
■
fl ❑
Q
Are the outlet structures located per the approved plans?
■
Q Q
Q
Comment: Trash rack installed at overflow structure of infiltration basin 2. -
Operation and Maintenance
Yes
No NA
NE
Are the SW measures being maintained and operated as per the permit requirements?
■
Q Q
Q
Are the SW BMP inspection and maintenance records complete and available for review or provided to DWQ Q ❑ Q ■
upon request?
Comment: All repairs have been conducted.
Page: 2

Y

Compliance Inspection Report
Permit: SW8030222
County: New Hanover
Region: Wilmington
Effective:05123/03 Expiration:
Owner: Bill Clark Homes Of Wilmington LLC
Project: Crown Ridge at Tidalholm
Passage Gate Way
Wilmington NC 28412
Contact Person: Sonya A Culler Title: Manager Phone: [phone]
Directions to Project:
From US 421/NC132 intersections, South on US 421 to Sanders Rd. Sanders to River Rd., South on River Rd. to River Breeze Drive.
River Breeze Dr. to Lipscomb, Lipscomb North to Passage Gate, right o Passage Gate.
Type of Project: State Stormwater - High Density State Stormwater - Infiltration System
Drain Areas: 1
On -Site Representative(s):
Related Permits:
Inspection Date: 05/06/2010 Entry Time: 01:20 PM
Primary Inspector: Angela K Hammers
Secondary Inspector(s):
Reason for Inspection: Follow-up
Permit Inspection Type: State Stormwater
Facility Status: ❑ Compliant ® Not Compliant
Question Areas:
10 State Stormwater
im
(See attachment summary)
Exit Time: 01:50 PM
Phone: [phone]
E=xt.7317
Inspection Type: Stormwater
Page: 1

Permit: SVV8030222 Owner - Project: Bill Clark Homes Of Wilmington LLC
Inspection Date: 05/06/2010 Inspection Type: Starmwater
Reason for Visit: Follow-up
Inspection Summary:
A follow up inspection was conducted as no Plan of Action was received by the Permittee by the deadline of March 22,
2010. The following items were observed:
Infiltration basin 1A has bare soil at inlet; Infiltration basin 1B has bare soil near inlet area; Infiltration basin 2 has erosion
of the slope at right of the inlet with bare soil and the trash gate was not observed at the overflow structure; Infiltration
basin 3 has small woody vegetation present.
To bring this system into compliance, the following must be completed:
1. Perform all items of the signed Infiltration Basin Operation & Maintenance Agreement to address at a minimum, the
above listed deficiencies.
2. Submit a Plan of Action to this office to include an expected date of completion.
File Review
Is the permit active?
Signed copy of the Engineer's certification is in the file?
Signed copy of the Operation & Maintenance Agreement is in the file?
Copy of the recorded deed restrictions is in the file?
Comment:
SW Measures
Are the SW measures constructed as per the approved plans?
Are the inlets located per the approved plans?
Are the outlet structures located per the approved plans?
Comment:
Operation and Maintenance
Are the SW measures being maintained and operated as per the permit requirements?
Vn \Ir. \IA \IC
Yes No NA NE
to❑QQ
03 0 ❑ ❑
00in11
Yes No NA NE
❑1@00
Are the SW BMP inspection and maintenance records complete and available for review or provided to DWQ ❑ ❑ ❑
upon request?
Comment: Infiltration basin 1A has bare soil at inlet; Infiltration basin 113 has bare soil
near inlet area; Infiltration basin 2 has erosion of the slope at right of the inlet with bare
soil and the trash gate was not observed at the overflow structure; Infiltration basin 3
has small woody vegetation present.
Page: 2

STATE OF NORTH CAROLINA
Department of Environment and Natural Resources
WIRO Regional Office
FILE ACCESS RECORD. �� r
SECTION SWP DATE/TIME �f9
NAME /�%s�.✓�� REPRESENTING SEG
T f fffY 3a
Guidelines for Access: The staff of the Regional Office is dedicated to making public records in
our custody readily available to the public for review and copying_ We also have the responsibility
to the public to safeguard these records and to carry out our day -to -day -program obligations.
Please read carefully the following before signing the form:
1 : Due to the large public demand for file access, we request that you call at least a day in
advance -to schedule an appointment for file review so you can be accommodated.
Appointments are scheduled between 9:00 a.m. and 3:00 p,m. Viewing time ends at 4:45
p.m. Anyone arriving without an appointment may view the files to the extent that time and
staff supervision are available.
2. You. must specify files you want to review by facility name or incident number, as
appropriate. The number of files that you may review at one a ointment will be limited to
five.
3. You may make copies of a file when the copier is not in use by the staff and if time permits.
There is no charge for 25 or less copies.; cost per copy after the initial 25 is 2.5 per copy.
Payment is to be made by check, money order, or cash in the administrative offices.
4. Files must be kept in the order you received them. Files may not be taken from the office.
No briefcases, large totes, etc. are permitted in the file review area. To remove, alter,
deface, mutilate, or destroy material in public files is a misdemeanof for which you can be
fined up to $500.00.
5. In accordance with GS 25-3-512, a $25.00 processing fee will be charged and collected for
checks on which payment has been refused.
6, The customer must present a photo ID, sign -in, and receive a visitor sticker prior to
reviewing files.
FACILITY NAME
2.
3.
4.
5.
�//_ 2-
ign a/Name f FirrKor Business Dat Time In.
(Plealsi§ attach business card to form if available)
# Copes. Amt. Pd.
COUNTY
Time Out

Ai;. 7A
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
April 8, 2010
CERTIFIED MAIL #7008 1140 0002 9562 1022
RETURN RECEIPT REQUESTED
Mr. John Conner, Manager or Mr. Edward Clark, Manager
Bill Clark Homes of Wilmington, LLC
430 Eastwood Rd, Ste 100
Wilmington, NC 28403
Subject: NOTICE OF VIOLATION, NOV-2010-PC-0326
Crown Ridge at Tidal Holm
Stormwater Permit No. SW8 030222
New Hanover County
Dear Mr. Conner or Mr. Clark:
Dee Freeman
Secretary
On April 6, 2010, Wilmington Regional Office personnel performed a Compliance Inspection of
the subject project, located adjacent to Passage Gate Road in Wilmington, New Hanover
County, North Carolina. The inspection was performed to determine the status of compliance
with Stormwater Permit Number SW8 030222, issued to you on May 23, 2003.
The project has been found in violation of Stormwater Permit Number SW8 030222, issued
pursuant to the requirements of 15A NCAC 2H.1000. , The violations found are:
Failure to Maintain the Stormwater System. At all times, the permittee shall
provide the operation and maintenance necessary to assure the permitted
stormwater system functions at optimum efficiency. It was observed that
maintenance including repair of eroded areas, re -seed as necessary to maintain
adequate vegetative cover, small woody vegetation removal, and installation of a
trash grate at infiltration basin no. 2 were not being conducted.
As stated in the permit, the approved Operation and Maintenance Plan must be followed
in its entirety and maintenance must occur at the scheduled intervals, including, but not
limited to:
C Inspections, after every 1" rainfall or at least monthly
0 Sediment Removal
O Mowing and re -vegetation of side slopes
O Immediate repair of eroded areas
0 Maintenances of the side slopes in accordance with the approved plans and
specifications
0 Debris removal and unclogging of structures, orifice, catch basins and piping.
Y Access to all components of the system must be available at all times.
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity 1 AtfirmaM Action Employer
NorthCarolina
Naturally

Mr. John Conner, Manager or Mr. Edward Clark, Manager
Crown Ridge at Tidal Holm
Stormwater Permit No. SW8 030222
To correct these violations you must:
Provide a written "Plan of Action" which outlines the actions you will take to
correct the violation(s) and a time frame for completion of those actions, on or
before May 10, 2010.
2. Remove small woody vegetation from infiltration basin no. 3.
3. Repair all eroded areas of the basin slopes, re -seed with permanent vegetation.
4. Install a trash grate at the overflow structure of infiltration basin no. 2.
Failure to provide the "Plan of Action" by May 10, 2010, or to correct the violations by the date
designated in the "Plan of Action", are considered violations of 15A NCAC 2H.1000, and may
result in the initiation of enforcement action which may include recommendations for the
assessment of civil penalties, pursuant to NCGS 143-215.6A.
In response to the letter received on March 30, 2010 from Cheryl Blanton, Construction
Administrator, Bill Clark Homes, the DWQ project file does contain a transfer of ownership
request form dated August 14, 2006 for this project. However, a response letter from DWQ was
dated August 16, 2006 stating that the transfer of ownership could not be accepted until signed
Operation and Maintenance agreements were provided to this office signed by the proposed
permittee. If a transfer of ownership is still desired, two options are available:
1. Submit signed Operation and Maintenance agreements from the proposed permittee
(Officer of the HOA, for example),
2. Submit a signed copy of the current transfer of ownership form which states that copies
of the original Operation and Maintenance agreements have been supplied to the
proposed permittee. This form may be found at:
http://h2o.enr.state.nc.us/su/documents/NameOwnershipChangeForm16Nov2009.pdf
A transfer request will be considered by DWQ upon receipt of either of the above methods and
the project being in compliance with permit conditions.
If you have any questions concerning this matter, please call Angel Hammers at 910-796-7215.
Sincerely,
J
Georgette ccott,
Stormwater Supervisor
Surface Water Protection Section
GSlakh: S:1WQSISTORMWATERINOTICE1030222.apr10
Enclosures: Inspection Report
Copy of DWQ letter dated August 16, 2006
cc: John Hennessy- NPSACOU
Georgette Scott, DWQ-WiRO
New Hanover County Engineering Department
WiRO Files; Angela Hammers; DWQ Central Files
Page 2 of 2

Bill Clark Homes
Bu"ns dw Tm-"n
APR OS 2olo
March 30, 2010
Ms. Angela Hammers
NCDENR
Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405
Dear Ms. Hammers:
This letter is in response to your letter dated February 18, 2010, regarding Crown Ridge
at Tidalholm, Permit Number SW8 030222. Our records indicate that we transferred this
permit to Crown Ridge Homeowners Association, Inc. in 2006.
If you need any additional information or have any additional questions feel free to call
me at [phone] extension 102.
Sincerely,
i/
C eryl Blanton
Construction Administrator
430 Eastwood Road - Suite 100 • Wilmington, North Carolina 28403
Office 910-350-1744 - Fax [phone]z
www.billclarkhomes.com

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H, Sullins
Governor Director
February 18, 2010
Mr. John Conner, Manager or Mr. Edward Clark, Manager
Bill Clark Homes of Wilmington, LLC
430 Eastwood Drive
Wilmington, NC 28403
Subject: NOTICE OF INSPECTION
Crown Ridge at Tidal Holm
Permit No. SW8 030222
New Hanover County
Dear Mr. Conner:
Dee Freeman
Secretary
On February 8, 20,10, Angela Hammers of the Wilmington Regional Office of the
Division of Water Quality (DWQ) inspected Crown Ridge at Tidal Holm in New Hanover
County to determine compliance with Stormwater Management Permit Number SW8
030222 issued on May 23, 2003. DWQ file review and site inspection revealed that the
site is not compliant with the terms and conditions of this permit. Please find a copy of
the completed form entitled "Compliance Inspection Report" attached to this letter,
which summarizes the findings of the recent inspection.
As indicated in the attached inspection report, the following deficiencies must be
resolved:
1. Infiltration basin 1A and 1B lack dense vegetation
2. Infiltration basin 3 has small woody vegetation present
3. Infiltration basin 2 has slope erosion at the right of the inlet, lacked dense
vegetation and the trash grate was not observed.
Please inform this Office in writing before March 22, 2010, of the specific actions that
will be undertaken and the time frame that will be required to correct the deficiencies.
Failure to provide the requested information, when required, may initiate enforcement
action including the assessment of civil penalties of up to $25,000 per day. If a written
plan of action is not submitted to this office by March 22, 2010 then DWQ staff will re-
inspect the site and issue a Notice of Violation if the listed deficiencies have not been
addressed..
Wifmington t egionaI Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405
Phone: [phone] k FAX: [phone] Customer Service: 1.877-623-6748
Internet: www,ncwaterquality.org
An Equal Opportunity 4 Affirmative Action Employer
One
NorthCarolina
Natumllry

Mr. Conner or Mr. Clark
Crown Ridge at Tidal Holm
Stormwater Permit No. SW8 030222
Please be reminded that if any ownership or name change has occurred it is the
permittee's responsibility to notify this office in writing. If you have any questions please
contact me at the Wilmington Regional Office, telephone number [phone].
Sincerely,
. 'H"" wi!
Angela Hammers
Environmental Specialist
Enclosure: Compliance Inspection Report
GDSlakh: S:IWQSISTORMWATERIINSPECT1030222.feb10
cc: John Hennessy-NPS-ACOU
James Fentress, PE (Stroud Engineering)
WiRO Files; DWQ Central Files
Page 2 of 2

Compliance Inspection Report
Permit: SW8030222 Effective: 05/23/03 Expiration:
County: New Hanover
Region: Wilmington
Contact Person: Sonya A Culler -Title: Manager
Owner: Bill Clark Homes Of Wilmington LLC
Project: Crown Ridge at Tidalholm
Passage Gate Way
Wilmington NC 28412
Phone: [phone]
Directions to Project:
From US 4291NC132 intersectioni, South on US 421 to Sanders Rd. Sanders to River Rd., South on River Rd. to River Breeze Drive.
River Breeze Dr. to Lipscomb, Lipscomb North to Passage Gate, right o Passage Gate.
Type of Project: State Stormwater - High Density State Stormwater - Infiltration System
Drain Areas: 1 -
On -Site Representative(s):
Related Permits:
Inspection Date: 02/08/2010 Entry Time: 10:00 AM
Primary Inspector: Angela K Hammers
Secondary Inspector(s):
Reason for Inspection. Other
Permit Inspection Type: State Stormwater
Facility Status: ❑ Compliant ® Not Compliant
Question Areas:
® State Stormwater
(See attachment summary)
Exit Time: 10:30 AM
Phone: [phone]
Ext.7317
Inspection Type: Stormwater
Page: 1

Permit: SW8030222 Owner - Project: Bill Clark Homes Of Wilmington LLC
Inspection Date: 0210812010 Inspection Type: Stormwater Reason for Visit: Other
Inspection Summary:
The following deficiencies were noted during the inspection:
1. Infiltration basin #1A&1B lack dense vegetation.
2. Infiltration basin #3 has small woody vegetation present.
3. Infiltration basin #2 had erosion of the slope at right of the inlet, lacked dense vegetation and trash grate not observed
at overflow structure.
To bring this system into compliance, the following must be completed:
1. Perform all items of the signed Infiltration Basin Operation & Maintenance Agreement.
2. Submit a Plan of Action to this office.
3. Upon completion of the required items, submit copies of records of maintenance documenting the date, activity, name
of person performing the work and what actions were taken.
If you have questions, please contact me at 910-796-7317 or [e-mail].
File RAViGW
Is the permit active?
Signed copy of the Engineer's certification is in the file?
Signed copy of the Operation & Maintenance Agreement is in the file?
Copy of the recorded deed restrictions is in the file?
Comment:.
Are the SW measures constructed as per the approved plans?
Are the inlets located per the approved plans?
Are the outlet structures located per the approved plans?
Comment: Per inspection and submitted PE certification dated March 9, 2006.
Operation and Maintenance
Are the SW measures being maintained and operated as per the permit requirements?
Yes No NA NE
®❑ ❑ ❑
®❑ ❑ ❑
®❑❑n
®n❑n
Yes No NA NE
M ❑ ❑ ❑
® ❑ ❑ ❑
❑❑®❑
V— Mtin tir:
Cl ®❑ ❑
Are the SW BMP inspection and maintenance records complete and available for review or provided to DWQ ❑ ❑ ❑ Im
upon request?
Comment: Infiltration basin #1A&1 B lack dense vegetation. Infiltration basin #3 has
small woody vegetation present. Infiltration basin #2 had erosion of the slope at right of
the inlet, lacked dense vegetation and trash grate not observed at overflow structure.
Page: 2

6509 zephyr dr, wilmington, nc - Google Maps
Page 1 of 1
Address 6509 Zephyr Dr
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2/8/2010

N.C. DIVISION OF. _.WA TER QUALITY .
Water Quality Section
Complaint/Emergency Report Form
WILMINGTON REGIONAL OFFICE
Received by i"f z'KN pr< _ Date '2I)1 1-00 _ Time 15-/4;--
Emergency " jj Complaint_ City County.
Report Received From I
Agency Phone No.
1
Address-6 l Cy"?A Phone No. f A/ -
Check One: Fish KIII _,Spill Bypass Animal NPDES N.D.
X Stormwater Welland Other, Specify:
Nature of Referral h f.�t & o�`n -e-
140 4- 1 cog, I-e
Time and Date Occurred
Location of Area Affected 1AA ksi-'? 0=,2? a 7-,/,t No
Surface Waters Impacted Classification
Other Agencies Noted l
Invesfigation Details_ 4.? - Q Y 7(�_((� Y In s 4�Cl fL✓ G3 OV �2r
r
ems.
Investigator.
to &12 2D2
S: I WQSISHELLSIRFPORT.SHL
EPA Region IV [phone] Pesticides 733-3556 Emergency Management 733-3867 Wildlife Resources 733-7291
Solid and Hazardous Waste 733-2178 Marine Fisheries 726-7021 Water Supply 733-2321 Coast Guard MSO 343-4881
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 0 Telephone [phone] Fax [phone]

STATE OF NORTH CAROLINA
Department of Environment and Natural Resources
WIRO Regional Office
FILE ACCESS RECORD
SECTION SWPP DATEITIME
NAME A,rJ Y�t4__ REPRESENTING
Guidelines for Access: The staff of the Regional Office is dedicated to making public records in
our custody readily available to the public for review and copying. We also have the responsibility
to the public to safeguard these records and to carry out our day-to-day program obligations.
Please read carefully the following before signing the form.
1. Due to the large public demand for file access, we request that you call at least a day in
advance to schedule an appointment for file review so you can be accommodated.
Appointments are scheduled between 9:00 a.m. and 3:00 p.m. Viewing time ends at 4:45
2,a Anyone arriving without an appointment may view the files to the extent that time and
staff supervision are available.
2. Youmust specify files you want to review by facility name or incident number, as
appropriate. The number of files that you may review at one appointment will be limited to
five.
3. You may make copies of a file when the copier is not in use by the staff and if time permits.
There is no chaMe for 25 or less copies.; cost per copy after the initial 25 is„2.5 per copy.
Payment is to be made by check, money order, or cash in the administrative offices.
4. Files must be kept in the order you received them. Files may not be taken from the office.
No briefcases, IaMe totes, etc. arepermittedin the file review area. To remove, alter,
deface, mutilate, or destroy material in public files is a misdemeanor for which you can be
fined up to $500.00.
5. In accordance with GS 25-3-512, a $25.00 processing fee will be charged and collected for
checks on which payment has been refused.
6. The customer must present a photo ID, sign -in, and receive a visitor sticker prior to
reviewing files.
FACILITY NAME COUNTY
2
3.
4,
5.
Si_ naturelN me'of Firm or Business Date Time In. Time Out
(Please attach business card to form if available)
# Copes:Lj Amt. P .

Crown Ridge �, 'I'idalholm
5tormwater Number: 030222
County: New Hanover
Location of Project: Located off River road in Wilmington
Date of Ins ection: November] 7, 2005 & December 8, 2005
Site problems: Lot 445 has severe flooding problems clue to the lot behind hint being;
built tip.
Inspection Details: The lot behind #45 has been built up about 4-5'. This lot is part
of another subdivision, yet there stormwater is flowing; into lot #45 then into the:
infiltration basin desicyned for Crown rid-c. The basin is located directly beside Lot
#45. The other lot is part of the Tidalholm Subdivision Lot 488 ?
Contacts,
Mr. Jeremy Jones
Owner of Lot 445
325 Passage. Gateway Road
Wilmington, NC
(91 (l) 350-2433
(910) 3524168
Pb ALAo'Ikei an.-s I ',If 1 -+�►
C0~ at-w}
0.4 WAle-C.

•
Ll
Michael F. Easley, Governor
William G. Ross Jr„ Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P. E. Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
Complaint/Emergency Report Form
Wilmington Regional Office
Date Received: _jje.J..Time: O4:01)
Report Received From:_ 'Telr nq 3t'^el
Agency: H.wat Owny GowK `d —
Telephone Number (s): (410) 350 -2433 AS 1-0 3SI.- H4
Location of Problem �r a.�"T r 32 S Ply Wfe ww �.,.N (o.
Complaint/Problem: kJ.,f ye dtiM ;H w Cot �`S (�,1i1:.►�.
41. o
Date of Investigation: A4V A Zoa,S Time Investigated:
Investigation Details: r;'.V /C'• de .
z 1 i 1_ is Aj.
Investigator:
N. C. Division of Water Quality 127 Cardinal Drive Extension [phone]
Wilmington Regional Office Wilmington, NC 28405 [phone] Fax
Date:. ll, ,e Ir Zo
Customer Service
1-877-623-6748

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Permit No.
to he provide by UtffiJ
State of+ Nor th!Carolina
Department of Environment'and Natural Resources
Division,of Water.Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN: SUPPLEMENT
This form may be j)hotocr)pled for trsr, as an original
1JWQ Starinwater Management Plan Review:
A,complete stonnwater nianagement plan submittal incl'ucics a stormwater management permit application, an
infiltration basin supplement, each system, design calculations, soils report and plans and specifications
showing all stonnwater conveyances and system details.
1.. PROJECT INFORMATION
;.Project Name: Crown Ridge at Tidalholm T T
ContaC[Person: dames H. Fentress, Jr., P.E. Phone Number: ( 910� 815-0775
This.worksheel applies to: Basin No. 1—A in Drainage Area 1—A
r (as irtrruified on plans) (fronv Form SWU401)
# 111. .DESIGN INFORMATION - Attach supporting; cailcLilations/documentation. The soils report must be
i bases[ upon an_actual field investigation and soil bbrings. County soil maps are not an acceptable source
of soils iliformation.• All elevations shall be in feet mean sea level (fmsl).
Soils Report Summary
Soil Type
Infiltration Rate
S]-IWT Elevation
sBasin Design Parameters
Design Storm
r.
De51bn VOlL1111C
Drawdown Time
"Bashi Dimensions
Basin' Size
!4r
]Bashi volume Provided
w, B�isih Elevations
' B6ttorn Elevation
_ Storage Elevation
Top.Elevation
Fonn'SW12-I03 Rev 3.99
Vurah
b in/hr or ef/hr/sf (circle appl-opriate units)
13.83 fins] (Seasaiial High Water ruble elevation)
2.0 inch . { 1.5'ihch (!vefri fiir SA waters, 1 inch event fir ntherts)
6,275 c.f.
0.28 days
_. 38 � ft. x 50 i5 tt. = 1,900 sq. ft. (hottorn dimensions)
28,315 c.f.
18.0 fins]'
19.96 fills
23.0 fnls]

-AII REQU,11Z1 D ITEMS CHECKLIST
I ., � ,... �'i�ii}:',r,„':
ThetlolloMnj; checklist outlines (ICsign rcguircnte its 'p6•tlic'Storrnwatcr 13cst Manabcmcnt Practices Manual
I]cpartment of Environment, 1-1calth and Nat�ll-al f�csoil'rCcs;rrcbruary 1999) and Administrative Cndc
`Scctio,n: !;S . NCAC 21
"Initial-.in,'the space provided to indicate that tile IOII{7w1111;'CICS1 11;1''C(�llll'C111C1]tS Ii�VC bCCn Met crud tiuhporting
dociltncntntiott is attached. if the applicailt ltas (]csil;nated!ah'a�cnt in the Store to Management Permit
,'Application forth, the agent may initi;tl beloGv. rlltach,jtistification if a regllircmcnthas not bCeri.,rnet.
irtn1`nn1iC."e! Initials
t. Systeizi. is located 50 feet from cl;tss';S.�1`wt?fers and 30 icet from otEtcl'surfacc waters.
IJ. System is located at ]cast 100 fact from w-Ma supply wells.
c. Bottom oCsystem is at Icast 2 i'Cct abo'vc-thd. scasonal high woter table.
(I., Bottom of the system is 3 feet above a,riy 13' lJ' ck or impervious soil 1106201:
C. System is not sited on or in fill materinl... r DWQ approval has been obtained.
1. Systcln is located i:� ;1 recorded drainac;cascrtictit for the purposes of operation and
rllaintenancc and ltas recorded access e.=ments,to the neal•est public I-Tlit-of--way.
circa for the device is los lime S ens:
h. Soils have ti mini111trrtt hydraulic coil dtactiviry:'of 0.52 incltcS per hoar and soils report is
tt Il I
i. System captures an{i irlfiltralcs the rw.61'f from the first 1.0 inch of rainfall (11.5 inch event for
arcns drnining to SA waters ). Dcsil;ri.,Volt1tilc•a11(1 infiltration Calculations attached.
j. System is sizc(I to takC into account 11 .6'1111101l it tilt ultinlatC built -out potential from all
surl;lccs draining, 10 the systcnl, includiit1; ar y off -site (inunage. Calculations attached.
k. All side slopes stabilized with vcl;cttiicd c(wcg;;nrc no steeper than 3.1 (]-I:V).
I. A pretreatment device such as ciii'c11-b isiii"'�ri'isc;tra trap, Stri
I , , p i , lma. tse I Swale or
sedinlenl trap is providc(I. a.
M. 130twill of,the device -is covered with ;l.;kiycr.nT,clean sand to an avcr:tge depth oN inches or
dense VegetativC cover is
11. VCgctated filter is provided for o'vci;f7�tiv;and;'cictaif is shown on plans (Rcgtjircd milzimum
length is 50 feet for SA waters, 30,['cct for.othdr-waters).
o. Flow distribution mechan'tsrn within flee bha in'•is 171-{ividcd.
p. A benchmark is provided to dctcriiiiii"C',tlic scdirnl nt ncc{imttlatiotl in file pretreatment device.,
(. I01,01C_ f-1inc S StC11ls ('b as5 detail provided), CXCSS iJ
r. System is designed to draw down tlie",dcsigii'stai•ag'c`vol ume to the proposed bottom
CICv;ttion undo• seasonal high wntcr:Coiitilitions'tvitliin Five days. A soils report and all
pertinctit draw -clown calculations t'ie'iitf.icltc�l:.:':''
s. 1'l;lns cttsurc that the installed systcl i ,will ai"e 'dcsign specifications (constructed or
restored) upon initial operation i)ncc thc;lJrojcct isr'complctc and the attire drainage arca is
Mabilized.r ,Y I.
Rev 1.99
I. p ' "

JNVILTR/kTION BAIN OPFIZATION AND.MiUNTENANu AcimnmENT
every I.uno1TprodLIC'1I1L,1 raillIC,111 event arld ar 61. -i lyjns�ect the infiltrations system For erosion ,
III It kI t i 0 11, VCect-,itivc cover, and gene"r'.."fe'01 f 16A
ir"Crodul arcs immediately, re-sced as 1 cccqqfry. tbmaintain adequate vegetative cover, now
vegetated covet' to iu.iintain -I imximl.1111 height Of remove trash as needed.
Y ,After CVcry runoff producing rainhill event and at ]c1sf'm6nthly'impcct the bypass, inflow Indoverflow
' t ' -Iorafion.'� Remove 11.6yJ and repair the structure to appro. * ve(l (icsion
S ruduics for blockage and dclei �l ock ro.
�'Cci I-i C'a't,j 0 Mg.
-0111 111C pI'C Mment --�ys em,and'infiltration basin annually 01whendepth
A��. RCIII �C aCClInILIlIICd M1*1111CIlt III I' l when
CtrCIM1110111 Milt 1,� reduced to 75Yo ol'thc oi i I fi..-t ic pr I (it 11,� Vc es I gn depth. The system shall be rntorod io the
61-igin1,i'dCSij,'l1 fICIA1 %VIt11OLIt 0VCI'-CXC,1VItiIIg. Ovci-;.6-<c-,)"v'litti'g'm,-i'y cause the required water table
'sb� aration to be rc(luced and may compromise to perl'orm as designed. Rcniov'cd
scdihicnt shall be disposed of in -in npproprkitc i-nann -n cr:and.sbill ot be handled in a manner that will
ldvcrscly impact water quality (i.e. stockpiling near a Mrrhw',1t& treatment device 6r..qtrum, etc.).
-A benchninrkshof] be emnblished in the pretrcatnicnt.I'mit. The benchninflc will document t116 Original
, d
esign. depth 'o fliat accurate sed,1111CIII. ICCUnitihiti6i bc tAcn. The measuring devi6c used to
'
ddtcrminc the depth at the benchmark shall be such thi't it. Wlll.,glvc In accurate depth reading and not
rendify Pencti-nic into "Icculliulatcd sediments,
3.75
4file"n the design depth rc, feet: in fll� t
"i ds -::pttt�6atnicn unit, I -lie sedinint shall be
; , , . . . ' . 'A baseline survey,elevation
lyy rem:o�cd froni bodi the pre(re:itnicnt unit :ind the�infifllr�'ition basin.
will be
',e'stabl'ished after basin is completed. As sd diinen t collects, the bottom elevation will be
?On ieyor's level.
i4s�ing a surveyor's 'i,r`l) vt,,,,,, (IelcrjllilicS III -ill the qy(acm iS Failing, 016.Syqt6i will immediately be repaired to original
desi'gii specifications. lithe symcii'i cannot bo-repaird 40'Purairl-i'l its design function, other Stol-11-twiter
C?'ht'I:o1%:dCviCC.q as allowed by NCAC 21.1 .1000 and constructed.
-,rcc by iny.qignature below i.-L I ani'rcsp6n.�i�lie,fqir ific performance oFthe live
I'lack-nowledge mid ,ig d t.
problems
nin ance procedui listed 'bovc. I ngrcc 10 noilY' s with the iystcn.or prior to any
IQally
,,.,cflangci, to:the system or responsible party.
Orin - MY10 RWI I ItIC: John Conner, Manager,..
1430 Commonwe-filth' brjv­c,. WIM''ington, NC 28405
Phond:
Thle'let.41111, J-C.Vp1)I1,Vib1v pill.w.01ordel not In' (I 111jinvoli'llel Ilrore thon 50% (?fW11! lots h1we heun vold alld 'I
I • MSII III fy t ( Y11 It 111SIMI lHIS111.1.11 )lM)Wf I r1. PIW'M 1!171.
%V
the Suilc C)
do here[)y certify t1i:uC-t� -­'l r' ­wmilly ;tppurcd. ;%j
j
, d.1yor ( :1,1(1 'icklioNvit:dge Ille'dUC CUCLition-6i -:16(ill kwtiirl Ill't i Illeml lice l-ecIttireme:i1s.
'c'
,S T.A L T A MY C01111
B L
4
Rev 199'
o
�Vlcy'
j,

Permit No.
'i�,atiri � �'. ..; �� ;• ,�,'a' 0obeprovided rayDJVQ)
'1"In In :rd, State of North Carolina
i
Department of Environr' erif-and Natural Resources
` Division of Water Quality
STORMWATER MANAGEMENT: PERMIT APPLICATION FORM
INFILTRATION'BASIN SUPPLEMENT
This form may be Iphotocal'ned..fof; use. as an original `�,IIE�'�•'�'er, ,,' ,' 1, '
`, DWQ Stormwater Management Plan Review: �. .
I• A complete Stormwater management plan submittal includes a sionnwater management permit application, an
basin supplement for each system, design- calcuiations, soils report and plans and specifications
'•'' 'I;` ;,' ; `showing all Stormwater conveyances and system details.'
1. PROJECT INFORMATION
Crown Ridge at Tidalholm..
1,.. Project Name . r
James H. Fentress Jr. P. E. (910� 815-0775
on Person: Phone Ntnnber; _ _
This worksheet applies to: Basin No. 1 B in Drainage Area 1 8
• . (($.e iderrrifed oil ptarrs) (from Porrri SFVU-101)
I1. DESIGN INFORMATION - Attach supporting cal culationsldocumentation. The soils report must be
baSed upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils infonnation. All elevations shtili be in feet mean'sca level (find).
;• Soils Report Summary
Soil Type
':Infiltration Rate
S14WT Elevation
)Basin Design Parameters
All, • ' i,i i r ;
Design, Storill
Design';Volumc
��' r t •� ' ' DrawdoWn Tinic
n
Basin Dimensions
Basin Size
+I;ii ;.,1, ',• Basin Volume Provided
t,3:�#�•'.'..���';.,I3asin Elevations
,-Bottoni Elevation
`Storage 1levation
: i _:.Top Elevation
ronn 5WU-103 Rev 3.99
Kureb
6 In/hr.or.Cf/hrls%....(eirele appropriate units)
13.83 fnlsl . (Seasima ffi h fVater• Treble elevation)
2.0 I "I
inch •(1.5 inch cwcrN J)r• SR waters, 1 inch evem for others)
15,073 c.f
0.65 days
44 • ft. x 48 ft, = 2,112 sq. ft. (bottom dimensions)
41,065 —C.C.
18.00 fmsl I,p
20.79 fmsI i
23.0 fill S 1'V' f
Page 1 of 3 ; '

IT•: ,1tli;(JU.IItv'I). vt•r:n'r:; C.:I r
lit: t'pl16%viog diecklist oulllnes design t'G(]LlIfC1t1C1ttr; 1�C1' th( fiIt1C);(m1v;ltCt• Best N 4,11ing meat Practiccs Manuel
Cs?ichrtriicnt
of Twnvironmcnt, 110a101 and ourCcs' 1 cb"litnly 1999) and Aclr]linistrntivc Cods
I:
rC�tir'i'i7: 1! IIA, NCAC
21-1 A 005. 1.:'w: _...
S , t
tit�,ll;ttn :thc:''spriec
,.
pl-ovided to illdicntc Ihal the fol(ciw,n� design rcgmr.cmcnts have been tact and supporiinZ;
OCUM lit, tioii•,i's 11mclled.
11' the applicant hay d'csigi,atc•(I.• ln'','vcnt iti the Stormwatcr Mana cmcnt Pcrrnit
.pp liCtttIort'.l"ortii, the
agent nmy init•snl below: �tttacltijii:stilic;it:ion';'iC:t1requo'ement lt;ts not been''mct.
:P
Systcm'Is located 50 feet fram c];1ss:S/';ivntci:S ,tti'cl 30 {ect {'ram other surface wntcls.
b.
System ir;' located nt last 100 feet €'rciii�'`ti5nic ;sirl?ply wells.
c.
Bottom cif System is at least 2 {cc't al)o %c.tlic:R'v. iral high watcr table.
�'i''..,• '.'''"'' d:.
l3attam ofthe systcrn is 3 fleet thovc'miy'l C(ro`ci oil imperviaus soii*horizol].
C.
Systcln is riot sited an or ill fill t]1a[crial br; I�VtTQ' ill ravel ltm bCCll
I ;.
is located in ;t rccordec{ drtiilia'�;c c scnicnt:,for,tfic purposcs ol'operation'and
nlaintennnce and has recoaled 1CCCSS.IC,LSCt7lC]7tS•t(l tI1C nCfl!'CSt �l1�liC 1'I�;ht-of way,
' tY.
Di, Ili;t ,c itrGa I61 fire cicvicc is Ics" tl7,iti 5-acres',
h.
Soils have a ntinirnun� hydr;tulic cc?1ldticlivity.,,bC0,52 fetches per hour and'soils report i5
m Inched.
'x'z-%;
•; i.
System ctt€}tares tend infiltrates the I-ur]oi•h•,li'oli?thc first 1.0 inch OCI-ainfllll (1.5 leech event COl•
;;',`,.:'1 ;;1 '.'•I;
nl'Cns ch-nininp to SA waters }.. [�CSi„1i.wolirl]ic ind ill iltratian calculations ittacliccl.
+I;;;'i f�1i. �•
yti1Cn� !S SY/.L'(I t0 talCC IIiIo ;1CCall]1l lhC"I,1111p'ft'ilt.thCal1hl11 ttC built-Otlt pOtCllt]nl from tll
it'r�"t,'`,;'',,I" ] ;
tilll'{aCGS CII';lllllllr; to the SySlem, including nIIY" l-Sit''c Cl]•a!]la�,C. CalClllallonS nttaChC(1.
"'
I ,
AII'sidc s:Iop c.oz rit,tbihaul with vCgctxctl.,Covcr line no steeper than 3:1 (1-1:V).
o
A pi-ctrcntment device such as a Ciitc[�:basilr; r;rcasc hap, filter strip, l,rnsscd male or
milt trip is pl'oviclCd. -' ,
fiot(ar]1 of the device is cnvcrcd %Jit1i ,z•I;tyei,c>fcicniInd to a:1 nVel-noc depth ON inches c11'
densc vCf;cl;llivc Cover• is'providcd.
vegnited filter is 131-nvic€C(1 f'o:- .j.%shown on p1mis (Required minimum
length IF• 50 feet for SA waters, 30 (cct'1'or;;ntli'ci;;w7tcls),
i lc�w (€istributinn rrlGchani rn wi(hili't1ic,Uasirn;l:;:1>t,c�vI(ed.
A bcnchmi)ric is provided tO CiCtCI'I]lII1C'.the,scdiiiiclit::�c'cln]utlntinn in the pretreatment cicvicc.•" .-,.
l�lllloff111excess; of -the dcsi;n vcilunic b' �m:? 16s:.b l•;lill �: stclzls b iiss dct;til provided).
SystClrl is dcsigncd to draw dative tlic::cicsi�ti';stoi�t;C v.olumc to the proposed -bottom
elevation undcl':>Casall;tl high Water :Conclitjoil",''%vitliili livc.days. A soils rcpo:-t and nll
pel•tlllclit (11"mv-dower CalclllntionS il•C ntinCliC`d:
PI.Im" ensure flint the installed syst'cl,I %vlIl{;i�icc�;'c�csi� it specifications (constructed or
res;torcu) upon initial operltion onceth,(; piia)M. is.complete and the entire drainge area is
• � ,:. stabilized• � ,�' '�' I �' ;,:i
lf-'d{i'l ,ttcv a.99 P:It;c
l i AA

i•'�-'�!1!.''� '','I[Nsl�il�`1'12A`('ION 13ASiN Ol'I�RA`I'C'�N Af�ii)•IVfilI1V'IErIVANCr ACl21:iI1Mf�,N'1' -' �', hl�
lllfterrtevery runofI' pro dtic ing minf;ifl event ,and at last >iloiltlily [aspect the inliltration systcm for erosion,
trash ;tcctlrmulation, vegetative cover, and gencr^flcondition 7
Repaircradcd areas imnlcdiatcly, re -seed is ncccssary,foImtlntain adequate vegetative cover, mow
r Vcgetated cover to maintain a maximum height remove trash as needed.
3:, ',lifter every r1.11101'1'producing rainl4-111 CVCnt and at icasf tnoiithly inspect the bypass, inflow and.,overfiow
structures 161- blockage and deterioration. Retnoirt tiliy. b10 I" c ,tad repair the structure to approved design
Spec if iCatiorl(1.
Remove accunlulsltcd scdimcnt from 111c pretreatment System a nd,infiltration ba.sij) annualfy or when c[cpth
iri:.the pretreatment unit is reduced to 75% of the ol'll�llialdesigntticpth. The systcm shall be restored to the
of it;ihal design depth without over-cxcav;lting. OJci''c�cc;ivatiti'� may cause the require[! water table
separation to be reduced and nlny compromise the ability, offthc;systern to perform as designed. Removed
SC0I[11C11t sllall be CIISf10Sccl of rn -in appropriate manner fzncl:shall not be handled in a manner that will
adversely impact water quality (i.e. stockpiling neat- a storhiwatcr treatment device on stream, ctc.).
A bcnciimai'k shall be established in the pretreatnlcrlf,ttnit:.Thc benchmardc will docurnent the original
design depth so that accurate sediment accurnulatiori s=cadinZs can be taken. The MCaSltl'ing device L13Cd to
cictcrrnitic the depth at the bcnchm trlc s11a11 be sucli'th'at it Gvill. ;ive an accurate depth reading and not
readily penetrate into aCCLlnrtllatCd sediments.
When the design depth re:3.75.
uls fcta, in [lie lircti•ca•tmnt� u enit, the Sediment shall he
' removed front hclth the pretreatment unit and theiiililtr.-Mion basin. A baseline survey elevation will be
established after basin is completed. As sediment collects, the bottom elevation will be
:•,..' i on gre'd lus.ing a surveyor's level,
? l,t 1C !Zion delCrrllrrles tll;lt the systcm is fililinz, tll'c.systcin will immediately be repaired to original
ftsign,specificatiotls. II'tile system cannot bC•repaircd_io perforn7 its design function, other stormwnter
Coll fro [:,devices ns dlowed by NCAC 21-1 .1000 must bc-dcsi�ncd;.approved and constructed.
' "[ acknowledge and agree by my signature below that.] am; responsible for the performance of the live
mA�micr'iaricc procedures listed about. 1 a�;rcc to notify'1�1N.Q of aily'l3rtablems with the System or prior to any
'cllingcs'tb,thc systcm or I-esponsible party.
Print Name and 'I'itic: John Conner, Manager!
r.
f' 1430 Commonwealth'Drive, Wilmington, NC 28405
-
}' Plionc:`�� 910-256-0885 pate:
'-f; � , " '':- ; C3��c_.,. �/G ����z.rx G.e- a✓ic�r�.v�--rm�/� 4�-.c_ .,
''ir':ySrgritituril �G l►� . CIL*.,
f 'flur'lf!g,,jly r•eay�ousiblc ixrr•r1, should viol he a hooreotrric'rt"ua'snsitrlirA}t'tmleee owl-el11uur 5l)'/'n1:11re lots !rove been sohl aril r)
re.' idew o0he subdivision hos berm rm wd the lwevelelu:•, " ''� `!'tt¢ ; '-i"a l i'.
S �Q`(` 5 , It Nn4try t'uhlic`r,O11 Pi LStatc,�ol':. 'Count �y of
` 1 ,� 1C= , ein hereby ca tily tE� tt ' „ C ' _^ PC:•ton,tlly ,rppc,:recl bef'are rile this SA—
clay,oG ;md;wknuwledgc the dt:c Ckcution of [lie:ror3oing irtlihnitiem basin nt:tirttemmce r'ecluiremettts.
r?r.'•Wilnc,s�iisylt;�SCri�tftEl�lrr'Frl�t:tJ,j�cal,
- ' �•': � •::,�•': .-ors_
'[f1:,gnA1_ i'.`'*� ' '• t �, My Comntissiot)ce.Xp'ires: ?' 1
LIBOO
t S Tot •.,t; :,::t ;�9 1'a c :l of,
S
G

Permit No. i!r
(to be provided by D310
State of North Carolina
Department of Environment,atid'Natural Resources
Division ofWater.Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
�. `. This forty? may be phoioc�pied for use as an original
I; '•i. ' DWQ Storrnwatcr Management Flan Review; ;
_
A:�Omplete stormwater management plan submittal includes astorrnwater management permit application, an
infiltration basin supplement i'or each system, design calculations, soils report and plans and specifications
showing al] stormwater conveyances and system details.'
ki I. PROJECT INFORMATION
Project Name Crown Ridge at Tidalhol,m
."Contact Person: .lames H. Fentress, Jr., P.E. kPhone'Number: (910 L15-0775
ll .,
This worksheet applies to: Basin No. 2 in Drainage Area 2
(ox idc nrilie el ein plans) (f-unl Tbwm ,SIVU-!U!)
11. DESIGN INFORMATION - Attach supporting Calculations/documentation. The soils report mast be
based upon an actual field investigation and soil'borings.' County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean,sea level (fills[).
Soiils Report Summary
Soil Type
y
'Infiltration Rate
Ir''f'. Sl-11hlT I?]evatian
'yfBasi'n Design Parameters
Design,Storm
'Desi&'Volume
Drawdown Tinle
l sl•II:;• � r
I '
1' Basin Dimensions
r; Basin Size
Bassin Volume Provided
Basin Elevations
�, w':• .Bottoin hlevation
Storage Elevation
4 :^Top Elevation
.orniSWU-103 Rev3.99
li1i''1 ;r
6 w/hr-or cf/hr/Sf (circle appropriate units)
15.75 fmsl (Seasr)nal High Water Table elevation)
I.
inch , ,(1,.5 inch e vent for S,4 walcrs, 1 inch even! for others)
11,197
0.33 days'
82 ft. x 58 ft. ` 4,756 sq. ft. (bottom dimensions)
•, If �r, II
18.00
20.81 firs] ?,
24.00 fllsl'
Page I of, 3

Ah,
lot
C becklist o"thneN design requi sruffiiwntcr 11cst N/lanigement PracficcC Manual
;C- 161i of' Envil-611111ent, 1-1c,1101 and 1999) and Adminiit6tivc Code
C 2N 1008.
1"",Q
11112MR I NNIN )lovided it) indicate 111:11 (lie lmvc bcci) met and Supporting;
""I I'll, t I I I i,-, niunclied. ll' the .1111) 1 i C: I i 11, ha., d s 1 giia dd.. i the Stormwitcr Mnnagc�ncnt Permit
iw:,at'Cnt-jII,
bo *" I . V, , r III; the1my ilitinl.below. -c "qui -ement bn.� not been -met.
Alh"
Symen-l-is located 50 feet fro
a6d M let from other nairficc waters
i'b. Sy{:tan at im, i o(1 feet
c. o n orn 6 r sym cm is at I ens t 2 le't a 1) pVc t ]16 Im 66,ill high witcr table.
L',', Hoularn of the system in 3 let aboic"n'ny'.'soil horizon,
c. System 'is not Bed on or W Coll i-ARWrit')l 6"rjN10'7 been obtained.
Iiined.
va Ilm s, bt
System is located W ri recorded Arthe purposes of operation',rind
:Ijjd has I'CCOI-Cle(I jCCC�'SL.UaqCmci)'rn.t.6 , -1li!Lncarc.qt public right -or -my.
Dminvige area for the device is less ili,'lti S'ilc'Ics': is
t"0052 inches per' hour nn soils report is
W Sods We a nAnhims hydmuNc co11dcflvlt6y,'of.
i. Symenl captures and innhrntc:: the ru i)Lori,.I,rj.oiii'tiic.f-ii.st'i,o,iicii orraifirnii (i.s inci, event cor
Avo tubsTim areas dr,.iining ton Swaters, J, crilcultiong mmchcd.
acco
System is stied to take into I fIll t-.1 le'liltimatc built-olit potential A-om all
"Urbecs drNining to the system, inchA011d)-1-:61610te' Calculations attached.
k. All'side slopes stabilized with than 3,.1
A prctrc.i I ilia" deVel: sucli as a catC-1 1.1:cj!_ap' ljltcr!:lrip, 1, -a.ssed mnlc or
no"mu or do devkc iN covemd Why N—YdEor.,ci6hwaand to an nver,,ec (icpti, ord inci, s or
:,.':,-`J.-
dolim vegemlive cows is wmAck Q
vegetated filter iS provided for On IflallS (RCqUil'Cd I'llininlUrn
'lelvill 1,; 50 Fcct for qA mtcr. 36 -rb&jpr"6tkbv
f4 al
Plow (hr:triblition nlecllnlli`:111 %V ill) 111,111(,:,. 1:�InS 111.1% provided.
P'
dc ill A bCnChW;'W1( i.�� ])I -etreamms deAcc.
.�q. r
11
!,,ul,orr'jn'bxm;.c, or We Mgn volu ail Provided),
i
1
"Spac 11l is (IC!,igned to draw do%N'11 tltq the proposmFbottom
clevaIdan under scasomd lligh vvmcrcom idans withm fivc.days. A soils report and nil
" i"I perlinclil draw -down calculations I I In chc' 'ji&"�-.
1
�j
i is yRtcll) AVI :1)1 �ign spc
nns, c airc [Ill the inarnMed s j"Mcle" ciflutions, (constructed oi-
611
-cmorcd) upon mill d operation Once. (11cipro)CUL..'."iscorn'lil'ctc and the entirc drfilagc area is
11;1!"e 2 0

�l [V INI�II�`['RA`iION [zASIN Q1'ERA`['lON ANn MA1N'ti i4ANCE AGREEMENT N'T' 1
I Alter;every runaflproduCinf; N'tinliill event ancl'at;lca5t fnontl>lylaspect the in filtration system l«r crasian,
..�i
"'"'`'; .'tr�slr"iICClI1nE11ltion, vegetativc cover, and gcncr,^d CQnCIIt1031;'.'
2':. ",Rclrair croded areas immediately, re -seed as neccssaryto,mainiain 1(lcquate vegetative cover, maw
vcgct,1tcd Cover to maintain a nnaximuln IlCight of siz ilichcs, and retnovc trash as needed.
l '.• 3. -After every ninoffproducing 1•1infall went and It 1CIISi'mo`titlily)nspcct the bypass, inflow and overflow
structures for blockage and dcterioratiott.' helnOVC''an}i.bloClcagC and repair the strLICturC to approved clesign
ShCCli jCatlonS, i .I
RCn1OVC ICCunlEllatCd SCclimcnt lrom ti,c pretreatment system an'd;.intiltration basin annually or when cloth
III tl•ie j�retreatntcnt unlit. is rccfuccd to 75`%r of tlzc of i�;in;tl d' ign (epth. The system shall be restored to the
Onginaklcsi[,n depth without over -excavating, may cause the required water table
su • aration to be reduced and ma compromise romise the abilit al.tli'c's stem to perform as deli ned. Removed
.., . h Y p .Y. Y' p g
scdinicnt shall be disposal of in in appropriate be handled in a manner that will
advcr'scly impact water duality ('Ix, stockpiling near,n stormwtifer treatment device or strearn, etc.).
. .: A benclimai-k shall be establltihccl in the prctrcatnncnt'ulnit:'Tltc,bcnchmark will document th&0rigina1
design depth So that aCCElr�ttC SCdlnnent acctlmulatloiZ reading -ciin be taken. The n112VAIring device EISCd t0
determine the depth at the benchmark shall be such th it It!tvill.'give an accurate depth reading and not
readily pcnetiate into accumulated sediments.
;:. when "tale design depth rends 4.5 feet. in fliG`°preti,eltmenE unit, the sediment shall be
i'enfov' front both the pretreatment tinit ;Intl tIe:il' liration basin. A baseline survey elevation will be
.,' established after basin is completed. As se diment;collects;'"•the bottom elevation will be
mo i'tired us* a surveyors level.
S. [fthc Division deterinines that the system is lailin�;,'t 1c•system wI rnnmcdialely be i alral to origin -al
design spcci[ications. [!'the system cannot be'1-cpaii-cd`to perform its design function, other stolmwater
' control devices ns allowed by N C A C 2f-1 .1000 mtist t3c'd6si};ncd, approved and constrtictCd,
n-cc by my sign;tturc below th it.l am rdsponsiblc for the perlormance of the five l acknowledge tutu at
es rct;ititeiiance]rocccurIistcd;t]ovc. [aZco notify I).Q"•cf an Y' problcros with the system or prior to any
i;,chnngcs to the system of responsible party.
;; l'i'int Name and 'I'itic: John Conner, Manager
` 1430 Commonwealth Drive, Wilmin;Gton, NC 28405 —
'; Address; — _ _-- _
1 )one: 91.4-256- 088`
t !3/GG_,fC +ate Cam` a//lr tic!G '7faJ 1YL G -
,,,•j�SiF;•n,•t[in'c: G � /.c-..... ..._ c. '•7r',w"^�"'r �• ' 1� Dlti3'/-B3'
-Note Tlic'!cl;rrllt n spon.vibli! piw!,•,vlrurrle/ riw be it lrrlrru'uu7rikrs'rra.i'of:inlrrirt'iiiilc%.t'.c Inw-e.- llxrrr 50N'gf 11)(! Ims Irewt, brim •s)ld axrl tr
re•srrlrrr! of lhe.crrbrliria•iux hrrs Lca.•rr nrrrxr.•rlllxr presideni.,, '.�;•i`,:; �
i `_ °
:t Notary I'uhlici[i,rithi Stalc,'nl'.. `Y! C c,tnity cif'
1...,lL>�._._�►C, can lscrcby ccitify tltat`f`1� personally ;,ppcarcct bctitrc me 1163A
,,ncl ,tcknowlecll.;c Ilse cane 6 cation of'tlic:lorsciiii, infiltralion basin rt,ainictunce rcclnirem 11 s.
ltness illy1i�,�µ�lthllil'frClrlj,�tiCn1, S Sr
.SI?n[_ My conu1INS11olt expire
q
SV�,1�\%••:,RCv :i.,1�•'� . ��� ['age 3 nff 3 .. li

I !l
;''r'IFT,`•,�`, :.I, {, ;� ;+,` i;i Permit No.
..' .''4` ;;,14E ;i^•"` ` i "i = (to be provided bi DtvQ)
State of North Carolina
De artnient of Environment antl Natural Resources
I` �} P Division of ,W' atee Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
'{'i'' INFILTRATION: BASIN SUPPLEMENT
r.iE ; ; l•i This form may be photrrc'apicd for Tise as art original
DWQ Stornwater Management Plan Review;
A'6rnplete stormwater management plan submittal includes a storniwater management pen -nit application, an
'+infiltration basin supplement for each system, design!!calculations, soils report and plans anti specifications
;;,'•�;.k r+i showing all stori-nwater conveyances and system details.
PROJECT INFORMATION +
`Project Name
Crown Ridge at Tidalholm I,'
k :; Contact Person: Phone Number:
= t •r
James H. Fentress Jr P.E.', 910 } 815-0775
I, +
This worksheet applies to: Basin No. 3 in Drainage Area 3
(us idrjrfiflvd fin plan.e) (from Form SIVU-101)
II. DESIGN INFORMATION - Attach supporting calculations/tlocmncntation. The soils report must be
-based upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean sea level (fmsl).
Soils' Report St n inary
E ' Soil Type
Kureb
infiltration Rate
6
in/hr_or cf/hr/sf.- (circ'le appropriate r„rirs)
SHWT Elevation
13.33
fills] (Serif n,md Hi• lr: JVater Table elevation)
Design Parameters
?Iiir<i:;:"' �;
Deslgn•Storm
2
inch '(1.5 ),rch eve,rt.for SA waters, 1 inch evert for- others)
Design°Valume
12,642
- ?„Ia ;' ,Drawdown Time
0, $3
�c.f.
-
days
Bashi Dimensions
B25ii7isi'I.0
71
ft. X 1 18' fi•= 1,278 sq. ft. '(hutrvmdi,nen.tir,na)
t, Basin Provided
47, 254
,Vollrme
c.f.
"Basin Elevations
Bottom Elcvation
18.0
fmsl
Elevation
19.88
fmsl
,.j�,;'Storage
-:,,.Top Elevation
22.0
is
'0,
,'f.Form SWU-103 Rev 3.99
Paige I f'3 ''

I y dl�itl '•.
;. F�I' frl '•
iQ�l�)ti�ltll,-Cllecf: st nuilinen deign rcquirenicnv:per,tli(,.toffiii vatcr'-Dcst Ivlanagenicnt Practices Manual
VG`'� ` ttttnic'rit of
Envirailrncnt, 1lcaith and NatLl1999) and Administr,Itive Cade
'NCAC 214.100S. " r
f;'•
rMIA,4rrII
J 1 .
�. Li-�
; I..' .A
ti II'
,.
i ni'rtl tflC;fil):1CC l)r{]vidCd
I r .
rr'
to WINMe that INC 1{)11{)1V1111; desi[yri: CgwrCrlcnts have been rnct and supporting;
eum rtt;Strori;is attached.
II' the ,lhplienht. has (Icsiljiq cd.ln';��;cnt;,iir.,thc Statmwatcr Mat]a Cment Permit
Il7llCttt'ti0ti j'6rIl�, the
ap"ent Illay 11litl,ll below: has not been''met.
1 111 1t' .7'llitink
-'1!;'' ''} r`I ' ' ' V,a:
Systc:i]•is located ;O leer i'rarn C1 ICS 1 wzti 14 1nc1,30,let Cr•om other surface waters.
F.
,,-;b:
System iE, locAcd at 1C:Et,I 100 rcet Fro ni"Y'atc'l•'sUpp•Iy., veils.
Bottom orsystenl is at least 2 Cccr al ii'��c:(hc`sc�soii, l lli�r,h water table.
+s+ H `' T
Bottom of the system is 3 feet nbovc ii1iy 6c hock cir,�ml3crvinlls soil horizon.
r`I,' c:,
System is not !died on or ill rill nintCriiQl or;J� Q ipprav l has been obt:lined.
Syss-cin is located rn a recorded do' in,lrc'ciiscn�hit ;for die purposes, of operatiori'nnd
nlailltenancc and has recorded acccss`.c;tscinc,its t'o'thc nearest public right-of-way.
' UI
l�r':lul;i .',C al'Ca for the device is iCS.",'t11,1n S''+7CIC.�:
}' h;
Saiils hnvc ;i Ininln)um hydraulic Wni hi pywy,,oFI152 inches per hour n0soils report is
qyS1Cll1 C;lpllll'CS and rnldtl'atC51hC ['LI11(ln'rfrot thc,lirst 1.0 inch orraintall (I••5 inch event For
aICaS [If,illl[111, t(1 sA wataT 1, DCSi;_ntyalU111C alld infiltration calculations nttachcd.
,System is shed to take into nand nt;tfic''Lill affaf.th0 ultimatC built -out potential from 111
slIrii]CCs draining to the system, irlcludint., any-oll-site drainagc. Cilcufntions attached.
ll'S�'' ,:�• 1.. pAside slopes, stabilized with vcj ctarcil..covcr;:)r:c no steeper than 3:1 (1-1:V).
I. 'r A pretteumem device such no a C:lcch basisr;'i;rc isc `trap, I iiter strip, I;rasscd sw:llc or
'' ` ::edAncnI trap 11 provitlett.
Bantu orwc. device i:: coverc(I 1vitll: t i:lyC'r:cjl'c10,lil Sand to :ln nvCr'nt'C depth of'I inches Ol-
if dense veactmivc cover i!: provided.
L ;n. P Vegetatedfilter i:, providedCar overflow vul deg ttl.:is !flown on plans (RegUil-Cd I init tntl
i1, 1 $ •Icnpth is. 50 rCCt for SA w:lterfi, i(} fCCt',il)I nlh'Cl'tvall+Cl,C�;l
i.;:t"I',I
;.11;'... . (}.:' f�lclw disu•ibutic�n n:ccll:lnisrn 1Vrt11111.r11C.,baslrl',IS:1)r'avi(fC(I.
•SE'; r'•f !'�
��• 1'r',••, • p. rl bcnchnl,u'I< is pl'(1VICIC(I to Clctcl•I]1to the,prclrcatrncnt device.~-•-�
i5l...ij;;,:•, t1 I' l:iinorrijawccm or the design �rr�fu�i�c by�Y��c'scs cif'1' finCf�ystciils (Eiy�iiis.t.dct,tif providc(f).
Systcttl I.,,dc.<,iFrnc(I to draw dmyn the detilt>s] sto}� c;vnlumc to the proposelbanom
port and all `y.5,:•I?I",,,lt,, r'1 ;. Ovation under scasanal lliJ',11 water'co`icfit�iciiYs�witliili,liv.C.days. � soils rc
�'Str +1�;1 ficrtinc[it draw -down Calculations,,lic�ttacht�f 1
i�:i l'1;]ns; ensure tlr:lt the nlst,dled cyst''cal) �ViIl�nz't;cty'ccsi��'it's��ccific,ltions (Constrttctccf or
.,. ....,.�ii I,
I•''; J ""''I,r' j rutorod) ulion initial operation Oilcc�thC;l?r,"',CI:srCQ�lll)1CItC' 111(1 the CntlfC CII'all]at;C ai'Cfl 1S
�j.`r ':I"I •I i;t1b111`LCd. ;,i•rr,.;.•,'., � : .
'•1' '`�;I I'�}'j 1, 'i. :}',. j.:; '}}r II II'tt lt'.
ni SrW.U:110'.lRev '1,91) i'qW 2 nr 't
•I' ' I7�1 '•ti '•'r {' ••I, } i : j'p''I•!', r 'I�s rl t' � i',f
1 �

INFILTRATION BASIN OPERATION AND.NfAINTENANCEAGREEM1rNT
l'.., _1Aftct•.'cvcry ronofl`larociucinLI rninl;ifl CVCnt Incl. tit.fc�t5t:mnnthly'itispect the infiltration system forerosion, �.��,':'•''
tcafih"Iccurnulation, vcgctitivc cover, and gencrfil'condition
2.'. .R`cpaireroded areas irmmCcliatcly, rc-seed as ncccssary;.ta maintain adequate vegetative cover, mow
yeget.tred cover to maintain a ]maximum height of six iiichcs,•and rcinovc trash as needed.
' 3:'; After every runofhproducing rainGtll Cvcrlt and at Ica st'.inotithly'inspcct the bypass, ini7ow and••ovcr17aw
structures lot- blockage and deterioration. Remove aliy;blocicdgc (and repair tlic structure to approved design
specifications.
4: Remove accumulates! s,Cdimcnt I'roln Ills prctreatnlClat system arid.inliltration bnsin annu,llly or when depth
i in the prctrcatlnent Unit reduced to 75`%of the oriilial design' cicptlr. The systclm shall be restored to the
original design depth without over -excavating. Over-cxcavating May calrsC the required water table
scpai•ation to be reduced and may compromise thc'ability a1',tlic system to perform as designed. Removes!
,edinient shall be disposed of in an appropriate mannci=;aii'd shall not be handled in a manner that will
adversely impact water quality (i.e. stockpiling vicar a storrilwti`tcr trcatmcl}t device or.strcam, etc.).
A benclimndc shall be established rn the prCtrCatn1Cnt,unit; .The benchmark will docunicrlt the original
design depth so that accurate scdirncnt accuniulatisili icacfin s.cnn be taken. The measuring device usCcl to
determine the depth at the benchlrlark shall be such d t it%will.givC an accuratC depth reading and not
readily penetrate into accttlnulated sc(linlent.3.
Wlien the design depth reads 3.0 feet; in tlic'prcfi'catmCnt unit, the sediment shall be
removed from both the prelreatnient unit and the i filtration basin. A baseline survey elevation will
be ;
established after basin is completed. As sediment collects, the bottom elevation will be
monitored-using;;a -surveyor's level.
'5.1 11the'Division delcnnincs that the system is Ihikng, thu'.system will 'immediately be repaired to original
1. desl�,11 spec)llc',Itions. If the system cannot be.. irccl`to perform ItS dCslgll function, other ml-Inwater
:. 1• conti•ol,dcviccs ns allowed by NCAC 21.1 .1 000 int:st:bc cicsi�;r csl,'app'rovcd and constructed.
1 racknowlcdl;C and agree by my sigrrutnc below that.l,am responsible for the pel iottnance of the five
.n14111 t"nance procedures listcd above. 1 aZ,li c to notify=DWQ of,iiiy problems with the systcln or prior to any
chant cs to, the systcnl or respnnsiblc party.
Print Na mC ails! `1 itic: John Conner, Manager 1,
A'dslress: 1430 Commonwealth :Drive., .Wilmington, NC 28405
—_ _
l'irOnC:��10- 56-0885 Ia:1tC:
C'I/GL,•�L-�.C�G /�'�s".x G.�" tr//ti•I1.vr,�";7bA/� LrL�—
•, -fit-ram•--.
Sil;n;atirre:,R, G �. 4 ' �. . _ ..D/-.3/Q�' _
Nnlc: "The' lc tall!' respi rra•iblr'!)rrr(1' xhnrrlr! rru! hu (r ho»reowlier:t�ru.+.+'�ir'iirliurr!rr"rili.i.ti nu)rt' !!tort Sl1"/,> n/'!lrr.' lrN.r have brew .evil! trot! rr
rr..vr(1C'7r1 U/ rh('.wbdivisiew has Deer winjeel the lrresithfpl,
t; .(7\ e—P—S . �`( 5�, a Nolary Publicrot, thc'.State o,l':
_t
1� _ ckl flereh CCrtif th,tl �_ 1 5T
nlc l]Iis
' clay of�N�2� and ackmnvleclg IIIC clue eXect)66n of.tlieJorsoint; inlilh,ttion hash1111;1 tenilnce:ecluircrlrcnts.
'witness lily, ti t8iNVW,$'1'PrE(i:�,tical, S I
'I
.,
Sf:AL. �� Ft `�f '7' h f� tl' - MY collllllls:.Son•�'C.Kjlll'CS,'��
�, .
B 4-
t 51di,1. �`' 11n,,e 3 rlf 3
chili ,j.e :;t.c�y''�
�•,,��NS�lCK
r j
F, ; p��rrrlrnu�`e`L

2• 11'this application is being; submitted as the result of a renewal 6r modification to an existing permit, list the
existing; permit numl�cr-_-_--_--. ._ •--•__.__-- ----....._ -.';and its issue date (if known) ........
__—� --
3. Specify the type of project (check one):
Low ]Density X High Density ._Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks)-..
CAMA Major X _Sedimentation/Erosion Control 404/401 Permit _NPDES Stormwater
Information on requirr.rd state permits can he obtained by contacting; the Customer Service_ Center at
1-877-623-67U.
III. PROJECT INFORMATION
1. In the space provided below, summarize how storrnwacer will be treated. Also attach a detailed narrative
(one to two p iges).descr'ibing; stormwater management. lor the project .
Stormwater will be collected in catch basins and conveyed to one of three
infiltration basins
2. Slor:atwatcr runoff front this project drains to the Cape _ Fear River basin.
3. 'Total Project Area: 15.28 acres 4. Project Built Upon Area: 45.2 %
5. Flow many drainage areas does the project have?_ 4
G, Complete the followings information for each drainage area. if there are more than two drainage areas in the
project, attach in additional sheet with the information for -each area provided in the Same format as below.
Basin lr1f'orrnation
IDrainage.Areii l:A
Drainage Area I
Receiving; Stream Name
Cape Fear Rz ver
Cape Fear River
Receiving; Stream Class
C _S.W
C SW
Drainage Area
2.31 "AC
3.85 AC
]Existing lmpurvinns` Area
0
0
Proposed ]mper'vious*Area
36,232 SF
88,583 SF
% Impervious` Area (total)
36.0 `'
hnpe;rvious` SLarfacL Area
]Drainage: Area 1
Drainage Area 2
On -site Buildings
22,500 SF
67,500 SF
On -site Streets
13 732 SF
21,08 SF
On -site Parking;
On -site Sidewalks
Other on -site:
Off -site
Total: 36,232 SF
Total: 88,583 SF
* Impervious area is defined as the built upon area including"but not limited to, buildings, roads, parking areas,
sidewalks, g;r'avel areas, etc..
Farm SWU-101 Version 3.99 Page 2 of 4

INFILTRATION BASIN ANALYSIS FILENAME: G:IDATAIWPDATAIWQSIINBASIN1030222.WK1
Basin 1-B
PROJECT NUMBER: 030222 DATE: 23-May-03
PROJECT NAME: Crown Ridge at Tidalholm
DRAINAGE BASIN: Cape Fear REVIEWER: LSMunn
RECEIVING STREAM: Cape Fear River CLASS: C SW
Index No.: If ORW, is site within the 575' AEC?
SITE AREA 4.92 acres
IMPERVIOUS AREA CALCULATION
BUILDINGS
PARKING/ASPHALT
CONCRETE
OTHER
TOTAL
% IMPERVIOUS, 1=
DRAINAGE AREA: I 21'43162 SF
Rational C
67500 1
21083 1
Cc=
Place a "1" here if Rationa
RV= .05+.009 (I ) =
ELEVATION OF SEASONAL HIGH WATER TABLE
REPORTED INFILTRATION RATE
or
SURFACE AREAS AND ELEVATIONS
Elev. (ft) Area, sq Inc. Volume
BOTTOM 18 1947
19 3999 2973
22 12298 24445.5
TOP 23 14213 13255.5
VOLUME 1 DEPTH 1 DRAWDOWN CALCULATION
DESIGN STORM, INCHES
DESIGN VOLUME
TOTAL VOLUME AVAILABL
DEPTH OF RUNOFF
TIME TO DRAWDOWN
FEET MSL
INCHES/HOUR
0.000139 FPS
Acc. Volume
2973
27418.5
40674
CUBIC FEET
CUBIC FEET
FEET
HOURS MUST BE <120
25 YEAR 24 HOUR STORM N/A
Intensity, i = .33 inches 1 hour
Qr=CiA= 0.86 CFS
Qp through the bottom of the t 0.27 CFS Must be > Qr
10 YEAR 10 MIN HIGH INTENSITY EVENT
Intensity, i = 6.3 inches I hour
Volume for 10 yr. 10 min. ever 9869.08 CF < 40674 CF
COMMENTS
Volume and drawdown are (not) within Design Requirements.

INFILTRATION BASIN ANALYSIS
FILENAME:
G:IDATAIWPDATAIWQSIINBASIN1030222.WK1
Basin 2
PROJECT NUMBER:
030222
DATE:
23-May-03
PROJECT NAME:
Crown Ridge at Tidalholm
DRAINAGE BASIN:
Cape Fear
REVIEWER:
LSMunn
RECEIVING STREAM:
Cape Fear River
CLASS:
C SW
Index No.:
If ORW, is site within the 575' AEC?
SITE AREA 3.33 acres
IMPERVIOUS AREA CALCULATION
BUILDINGS
PARKINGIASPHALT
CONCRETE
OTHER
TOTAL
DRAINAGE AREA:
49500
17077
Rational C
Place a "1" here if Rational `;.......'
% IMPERVIOUS, I= 45. 9%' RV= .05+.009 (I } = 0 46
ELEVATION OF SEASONAL HIGH WATER TABLE 57 FEET MSL
REPORTED INFILTRATION RATE
1.19
SURFACE AREAS AND ELEVATIONS
Elev. (ft) Area, sq ft
BOTTOM 18
2865
19
3613
19.54
4052.56
TOP 24
8305
VOLUME 1 DEPTH I DRAWDOWN CALCULATION
DESIGN STORM, INCHES
DESIGN VOLUME
TOTAL VOLUME AVAILABLE
DEPTH OF RUNOFF
TIME TO DRAWDOWN
25 YEAR 24 HOUR STORM NIA
Intensity, i = .33 inches 1 hour
Qr=CiA=
Qp through the bottom of the basin=
SF
INCHESIHOUR
0.000139 FPS
Inc. Volume Acc. Volume
3239
2069.7012
27557.3588
3239
5308.7012
32866.06
CUBIC FEET
CUBIC FEET
FEET
HOURS MUST BE <120
0.12 CFS
0.40 CFS
10 YEAR 10 MIN HIGH INTENSITY EVENT
Intensity, i = 6.3 inches 1 hour
Volume for 10 yr. 10 min. event 1362.01 CF <
COMMENTS
Volume and drawdown are (not) within Design Requirements.
Must be > Qr
32866.06 CF

INFILTRATION BASIN ANALYSIS FILENAME o;\DATA\wPDATA\wQsuNBASIN\030222.wK1
Basin 3
PROJECT NUMBER: 030222 DATE: 23-May-03
PROJECT NAME: Crown Ridge at Tidalholm
DRAINAGE BASIN: Cape Fear REVIEWEF LSMunn
RECEIVING STREAM: Cape Fear River CLASS: C SW
Index No.: If ORW, is site within the 575' AEC?
SITE AREA: 3.99 acres DRAINAGE AREA: 7 .804 SF
IMPERVIOUS AREA CALCULATION
BUILDINGS
PARKINGIASPHALT
CONCRETE
OTHER
Rational C
63000
11630
TOTAL
Place a "1" here if Rational.::.::. <>:
% IMPERVIOUS, I= 42.9%' RV= .05+.009 (I } W €} 44
ELEVATION OF SEASONAL HIGH WATER TABLE :<.::<:1:3.3 FEET M S L
REPORTED INFILTRATION RATE
SURFACE AREAS AND ELEVATIONS
L,_ _.:...::.:: .:::::.:.:::: INCHES/HOUR
or . 0.000139 FPS
Elev. (ft) Area, sq ft Inc. Volum(Acc. Volume
BOTTOM 18 1276
19 6418 3847 3847
19.25 9190.5 1951.063 5798.0625
TOP 22 20028 40175.44 45973.5
VOLUME I DEPTH I DRAWDOWN CALCULATION
DESIGN STORM, INCHES
DESIGN VOLUME
TOTAL VOLUME AVAILABLE
DEPTH OF RUNOFF
TIME TO DRAWDOWN
25 YEAR 24 HOUR STORM NIA
Intensity, i = .33 inches / hour
Qr=CiA=
Qp through the bottom of the basin=
10 YEAR 10 MIN HIGH INTENSITY EVENT
Intensity, i = 6.3 inches 1 hour
Volume for 10 yr. 10 min. event =
COMMENTS
CUBIC FEET
CUBIC FEET
FEET
HOURS MUST BE <120
0.15 CFS
0.18 CFS
1721.21 CIF <
Must be > Qr
45973.5 CF
Volume and drawdown are (not) within Design Requirements.

INFILTRATION BASIN ANALYSIS
FILENAME: G:IDATAIWPDATAIWQSIINBASIN1030222.WK1
Basin 1-A
PROJECT NUMBER: 030222
DATE: 23-May-03
PROJECT NAME: Crown Ridge at Tidalholm
DRAINAGE BASIN: Cape Fear
REVIEWER: LSMunn
RECEIVING STREAM: Cape Fear River
CLASS: C SW
Index No.:
If ORW, is site within the 575' AEC?
SITE AREA 2.31 acres
DRAINAGE AREA: �ta0623: 5F
IMPERVIOUS AREA CALCULATION
Rational C
BUILDINGS
22500
PARKINGIASPHALT
13732
CONCRETE
OTHER
TOTAL
36232 C fj D 13
Place a 1" here if Rational
% IMPERVIOUS, I= 38 4°(v',
RV= .05+.009 (I)
ELEVATION OF SEASONAL HIGH WATER TABLE
><'.1383I FEET MSL
REPORTED INFILTRATION RATE
':6: INCHES/HOUR
or 0.000139 FPS
SURFACE AREAS AND ELEVATIONS
Elev. (ft) Area, sq ft
Inc. Volume Acc. Volume
BOTTOM 18 1881
19 3206
2543.5 2543.5
22 8280
17229 19772.5
TOP 23 10242
9261 29033.5
VOLUME ! DEPTH ! DRAWDOWN CALCULATION
DESIGN STORM, INCHES
DESIGN VOLUME
273<'
CUBIC FEET
TOTAL VOLUME AVAILABLE
9033i5
CUBIC FEET
DEPTH OF RUNOFF
s4.79>
FEET
TIME TO DRAWDOWN
:>:,::>30.:9:f
HOURS MUST BE <120
25 YEAR 24 HOUR STORM NIA
Intensity, i = .33 inches / hour
i Qr—CIA=
0.10 CFS
Qp through the bottom of the basin=
0.26 CFS Must be > Or
10 YEAR 10 MIN HIGH INTENSITY EVENT
Intensity, i = 6.3 inches / hour
Volume for 10 yr. 10 min. event =
1117.54 CIF < 29033.5 CF
COMMENTS
Volume and drawdown are (not) within Design Requirements,

STROUD ENGINEERING, P.A.
107 B Commerce Street
GREENVILLE, NC 27858
LACTUIRQ @�7 4MEMOTT1071
[phone]
TO / 3 CD Fm
�✓�tT CAL � t�
WE ARE SENDING YOU
❑ Shop drawings
❑ Copy of letter
DATE S! 9 d�
JOB ji w z ^
1�/ 4i
ATTENTIO
v 94JN
RE:
FZ.-Wtj
RECEIVE
Y•�
❑ Attached Cl Under separate cover via the following items:
❑ Prints ❑ Plans ❑ Samples ❑ Specifications
❑ Change order 0
COPIES
DATE
NO.
DESCRIPTION
S !7 a
G(K OAj
Z.
s vPPe. 2,ot
s r 'S *2
THESE ARE TRANSMITTED as checked below:
❑ For approval ❑ Approved as submitted ❑ Resubmit copies for approval
❑ For your use ❑ Approved as noted ❑ Submit copies for distribution
❑ As requested ❑ Returned for corrections 0 Return corrected prints
❑ For review and comment ❑
❑ FORBIDS DUE ❑ PRINTS RETURNED AFTER LOAN TO US
REMARKS `—- Q1
COPY TO
SIGNED:
If enclosures are not as noted, kindly notify us at once.

t
NCDENR
STORMWATER MANAGEMENT
HOW,
CROWN RIDGE
AT
TIDALHOLM
FI=J'BRUARY 17, 2003
RGVISI=JD
-N,fAY 13, 2003
Cl_,il--2' 1': BILL, CLARIl- HONIL�.S OF WILWNGTON, I_.LC
1430 COMMONWI?ALTH DIM
WILMINGI"ON, NC 28405 .•`,;.�N C+ARp;,'��.,
STROUD ENGINEERING, P.A.
102D MARKET ST.
WI]--,MINGTON, N.C. 28403
[phone]
—faitlitii..
File f.\master \pw-220\wi)d\dcncswco\=.wpci

11
NEWHANOvER COUNTY STORM WA TER DESIGN MANUAL
SECTION 40 - R UNOFF DETERMINATION PROCED ums
TABLE 40-3
NEW HANOVER COUNTY
DEPTH - DURATION - FREQUENCY TABLE
TABLE 40-3A
Duration
IV
Return Period
2-yr
5-yr
10-yr
25-yr
50-yr
100-yr
(time)
(in)
(in)
(in)
(in)
(in)
(in)
5 min
0.49
0.55
0.60
0.68
0.74
0.80
10 min
0.88
0.99
1.07
1.20
E
1.31
1.41
15 min
1.15
1.29
1.40
1.57
1.70
1.84
30 min
1.62
1.92
2.14
2.47
2.73
2.99
60 min
2.10
2.58
2.92
3.41
3.80
4.18
2 hr
2.50
3.30
3.60
4.20
4.70
5.20 .
3 hr
2.80
3.50
4.05
4.70
5.20
5.80
6 hr
3.30
4.20
4.82
5.71
6.40
.7.00
12 hr
3.90
5.00
5.80
6.90
7.70 -
8.60
24 hr
4.50
5.80
7.00
8.05
9.00
10.00
TABLE 40-3B
Duration
Return Period
2-yr
5-yr
10-yr
25-yr
50-yr
160-yr
(time)
(in/hr)
(u' /hr)
(in/hr)
(in/hr)
(in/hr)
(in/hr)
5 min
5.88
6.63
7.23
8.15
8.87
9.60
10 min
5.28
5.91
6.43
7.22
7.85
8.48
15 min
4.60
5.15
5.59
6.27
6.82
7.36
30 min
3.23
3.84
4.28
4.94
5.46
5.97
60 min
2.10
2.58
2.92
3.41
3.80
4.18
2 hr
1.25
1.65
1.80
2.10
2.35
2.60
3 hr
0.93
1.17
1.35
1.57
1.73
1.93
6 hr
0.55
0.70 -
0.80.
0.95
1.07
1.17
12 hr
0.33
0.42
0.48
0.58
0.64
0.72
24 hr
0.19
0.24
0.29
0.34
0.38
0.42
Source: Latest Versions of NWS TP-40 and NWS. Hydro-35
ADOPTED SEPTEMBER 5, 2000
PAGE 40-5

PROJECT:
CROWN RIDGE
PROJECT*
PW-220
DATE:
12/02/02
REVISED:
05/12/03
POND 1A
NEW HANOVER COUNTY STORMWATER
TOTAL DRAINAGE AREA (AC) = 2.31
PROPOSED IMPERV AREA (AC)= 0.83
% IMPER AREA = 0.360
PROPOSED PERVIOUS AREA (AC)= 1.48
PERVIOUS = 0.640
STATE REQUIRED STORAGE FOR 1ST 2.0 IN OF RAINFALL
RUNOFF = 0.05 + 0.009 X °/cIMPERV =
RUNOFF = 0.373593097
REQUIRED VOLUME = 2.0 IN X RUNOFF X AREA X 43560 SF/AC/12 IN/HR
VOLUME (CF) = 1 6275
PRECIPITATION 25 YR 24 HOUR STORM (IN) = 8.05
25 YEAR-24 HOUR STORM REQUIRED VOLUME
25 YR STORAGE (CF) = 8.05 IN X RUNOFF X AREA X 43560 SF1AC/12 IN/HR =
25 YR STORAGE (CF) = 1 25255
25 YR -24 HOUR STOORM VOLUME IS LESS THAN STORAGE PROVIDED THEREFORE
WE WILL NOT CONSIDER INFILTRATION DURING STORM,
PRECIPITATION 10 YR 24 HOUR STORM (IN) =
8.05
POND DIMENTIONS
AND VOLUMES
ABOVE PERMANENT POOL
ELEV.
SA POND
INCREMENTAL
CUM VOL
(FT)
(SF)
VOL (CF)
(CF)
18
1881
19
3206
2544
2544
20
4537
3872
6415
21
6230
5384
11799
22
8280
7255
19054
23
10242
9261
28315
STATE STORAGE DEPTH= 1.96
STATE STORAGE POND ELEVATION = 119.96
25 YR STORM STAGE = 4.67
25 YR STORM POND ELEVATION 122.67
DRAWDOWN TIME (2-5 DAY)
TOTAL STORAGE (CF) = 6275
INFILTRATION RATE (IN/HR 6
BOTTOM AREA (SF) 1881
Q = INFILTRATION RATE X BOTTOM AREA (CFS)
= 0.26125
DRAWDOWN TIME (DAYS): 0.277979724
FILE: F:IMASTERIPW2201EXCEL/PONDlADENR,XLS

PROJECT:
CROWN RIDGE
PROJECTt
PW-220
DATE:
12102102
REVISED
05/12103
POND 1 B
NEW HANOVER COUNTY STORMWATER
TOTAL DRAINAGE AREA (AC) =
1 4.92
PROPOSED IMPERV AREA (AC)=
2.03
% IMPER AREA =
0.413
PROPOSED PERVIOUS AREA (AC)=
2.89
% PERVIOUS =
0.587
STATE REQUIRED STORAGE FOR 1ST
2.0 IN OF RAINFALL
RUNOFF = 0.05 + 0.009 X %IMPERV =
RUNOFF = 0.421997413
REQUIRED VOLUME = 2.0 1N X RUNOFF X AREA X 43560 SF1AC112 INIHR
VOLUME (CF) = 15073
PRECIPITATION 25 YR 24 HOUR STORM (IN) = 8.05
25 YEAR-24 HOUR STORM REQUIRED VOLUME
25 YR STORAGE (CF) = 8.05 IN X RUNOFF X AREA X 43560 SFIAC112 INIHR =
25 YR STORAGE (CF) = 60670
24 HOUR INFILTRATION VOLUME
INFILTRATION RATE (INIHR 6
BOTTOM AREA (SF) 1947
INFILTRATION VOL = INFILTRATION RATE X BOTTOM AREA X 24 HR
INFILTRATION VOL (CF) = 23364
REQUIRED POND STORAGE = 24 HOUR VOLUME - INFILTRATION (CF;37306
POND DIMENTIONS AND VOLUMES ABOVE PERMANENT POOL
ELEV.
SA POND
INCREMENTAL
CUM VOL
(FT)
(SF)
VOL (CF)
(CF)
18
1947
0
0
19
3999
2973
2973
20
6983
5491
8464
21
9705
8344
16808
22
1229B
11002
27810
23
14213
13256
41065
STATE STORAGE DEPTH= 2.79
STATE STORAGE POND ELEVATION = 20.79
25 YR STORM STAGE= 4.72
25 YR STORM POND ELEVATION 122,72
DRAWDOWN TIME (2-5 DAY)
TOTAL STORAGE (CF) = 15073
INFILTRATION RATE (INIHR 6
BOTTOM AREA (SF) 1947
Q = INFILTRATION RATE X BOTTOM AREA (CFS)
0.27042
DRAWDOWN TIME (DAYS); 0.64516
FILE: F:IMASTER1PW2201EXCELIPONDIBDENR.XLS

PROJECT:
CROWN RIDGE
PROJECT*
PW-220
DATE:
12/02/02
REVISED
05/12/03
POND 2
NEW HANOVER COUNTY STORMWATER
TOTAL DRAINAGE AREA (AC) = 1 3.33
PROPOSED IMPERV AREA (AC)= 1.53
% IMPER AREA = 0.458
PROPOSED PERVIOUS AREA (AC)= 1.B1
% PERVIOUS = 0.542
STATE REQUIRED STORAGE FOR 1ST 2.0 IN OF RAINFALL
RUNOFF = 0,05 + 0.009 X %IMPERV =
RUNOFF = 0.462536662
REQUIRED VOLUME = 2.0 IN X RUNOFF X AREA X 43560 SFIACII2 INIHR
VOLUME (CF) = 11197
PRECIPITATION 25 YR 24 HOUR STORM (IN) = 8.05
25 YEAR-24 HOUR STORM REQUIRED VOLUME
25 YR STORAGE (CF) = 8.05 IN X RUNOFF X AREA X 43560 SFIAC112 INIHR =
25 YR STORAGE (CF) = 45068
24 HOUR INFILTRATION VOLUME
INFILTRATION RATE (INIHF 6
BOTTOM AREA (SF) 2865
INFILTRATION VOL = INFILTRATION RATE X BOTTOM AREA X 24 HR
INFILTRATION VOL (CF) = 34380
REQUIRED POND STORAGE = 24 HOUR VOLUME - INFILTRATION (CF 10688
POND DIMENTIONS AND VOLUMES ABOVE PERMANENT POOL
ELEV.
SA POND
INCREMENTAL
CUM VOL
(FT)
(SF)
VOL (CF)
(CF)
18
2865
19
3613
3239
3239
20
4427
4020
7259
21
5305
4866
12125
22
6241
5773
17898
23
7236
6739
24637
24
8305
7771
32407
STATE STORAGE DEPTH= 2.81
STATE STORAGE POND ELEVATION = 120.81
25 YR STORM STAGE = 2.70
25 YR STORM POND ELEVATION 120,70
DRAWDOWN TIME (2-5 DAY)
TOTAL STORAGE (CF) = 11197
INFILTRATION RATE (INIHF 6
BOTTOM AREA (SF) 2865
Q = INFILTRATION RATE X BOTTOM AREA (CFS)
= 0.397916667
DRAWDOWN TIME (DAYS) 0.325681598
FILE: F:/MASTER/PW220/EXCELIPOND2DENR.XLS

PROJECT:
CROWN RIDGE
PROJECT #:
PW-220
DATE:
12/02/02
REVISED:
05/12/03
POND 3
NEW HANOVER COUNTY STORMWATER
TOTAL DRAINAGE AREA (AC) = I3.99
PROPOSED IMPERV AREA (AC)= 1.71
% IMPER AREA = 1 0.430
PROPOSED PERVIOUS AREA (AC)= 2.27
% PERVIOUS = 0.570
STATE REQUIRED STORAGE FOR 1ST2.0 IN OF RAINFALL
RUNOFF = 0.05 + 0.009 X %IMPERV =
RUNOFF = 0.436726239
REQUIRED VOLUME = 2.0 IN X RUNOFF X AREA X 43560 SFIAC112 INIHR
VOLUME (CF) = 1 12642
PRECIPITATION 25 YR 24 HOUR STORM (IN) = 8.05
25 YEAR-24 HOUR STORM REQUIRED VOLUME
25 YR STORAGE (CF) = 8.05 IN X RUNOFF X AREA X 43560 SF/AC/12 INIHR =
25 YR STORAGE (CF) = 50863
24 HOUR INFILTRATION VOLUME
INFILTRATION RATE (INIHR 6
BOTTOM AREA (SF) 1276
INFILTRATION VOL = INFILTRATION RATE X BOTTOM AREA X 24 HR
INFILTRATION VOL (CF) = 15312
REQUIRED POND STORAGE = 24 HOUR VOLUME - INFILTRATION (CF) 35571
POND DIMENTIONS AND VOLUMES ABOVE PERMANENT POOL
ELEV.
SA POND
INCREMENTAL
CUM VOL
(FT)
(SF)
VOL (CF)
(CF)
18
1276
19
6418
3847
3847
20
13508
9963
13810
21
16676
15092
28902
22
20028
18352
47254
STATE STORAGE DEPTH= 1.88
STATE STORAGE POND ELEVATION = 119,88
25 YR STORM STAGE(FROM ROUTING):3.36
25 YR STORM POND ELEVATION = 21.36
DRAWDOWN TIME (2-5 DAY)
TOTAL STORAGE (CF) = 12642
INFILTRATION RATE (INIHR 6
BOTTOM AREA (SF) 1276
Q = INFILTRATION RATE X BOTTOM AREA (CFS)
= 0.177222222
DRAWDOWN TIME (DAYS) : 0.825616619
FILE: F:lMASTERIPW220lEXCEUPOND3DENR.XLS

FAX COVER SHEET
Date: May 12, 2003 No. of Pages: 5
To: Pat Snoddy From: Laurie Munn
Company: Stroud Engineering Water Quality Section - Stormwater
FAX #: [phone] FAX # [phone]
Phone # [phone]
DWQ Stormwater Project Number: SW8 030222
Project Name: Crown Ridge at Tidalholm
MESSAGE:
Pat,
Please continue to calculate the amount of runoff per the DENR method of storage. I
have talked with Linda Lewis, and since the soils in the area are good and you are not
located next to SA waters,' you can use the 2" event as your design storm, but you need to
show in your calculations that the basins will hold the 25 yr — 24 hour storm event. You
can include the volume that infiltrates during the event (24 hours) as a storage amount.
For example, on Basin 1 B, the 25 yr- 24 hour event produces 61,424 cubic feet of runoff.
The basin can hold 40,674 cubic feet. Show me that the remaining volume (20,750 cubic
feet) will infiltrate in the first 24 hours.
Also, please revise the supplements to show the design storm, volume, and drawdown
time to reflect the 2" event. Change your calculations to reflect this as well.
Also, on the Basin 1-A supplement, the top elevation should be changed to 23.0 to match
the calculations.
On Basin IA, the clean out design depth should read 3.75', on Basin 113, the clean out
design depth should read 3.75', and on Basin 2, the clean out design depth should read
4.5'. Please provide a description of how the responsible party will determine the depth
at which the removal will occur.
This should wrap things up. Sorry for the delay. Please call me with any questions or if
you wish to discuss.
S:IWQSISTORMWATIADDINF0120031030222.may03

I'Ci'1111f',
br: prnvirlr•r1 by DIVQ)
;ta:;',:; ':.; ::;.:• I)clxrrf1mitt c)I'I;nvirr)01jI,QjYt„,,Irfe1 Naftir.:1f:RcsOr_n'ccs
Division of uilily,
'I ' S"fOf�NI1N/1`I'LI: N(/1N11GF:NlI N"I' I`I` APPLICATION DORM
INFILTRATION BASTN: SUPnLEMENT
This Ibr'm may ho jA(wicopir'r1 !01' tisr ;ls' it7 Oril;irlal
I?WQ Sloii:iwsltcr M [lim l�cl) 1C nt-P i_zn Revcn.
t1' iorill)Ictc'slc)rmw:ztcr mttslaL,4mcrlt hl,ln sul)III itt,zl iI- sliln;zl enlent pc,•nlit ;triplication, 111
iltr�ti'oil lrl ,ihl !;tlppIcmcllt for c;zch system, dcsitmi c,ilculaticil �, soils rc;lorl arl(I pl iris rncl spcciticatinrls
'.'sliclivinl slnrrlrNvntcI. crinvcyanccs ,Intl syslcnl dcmds..
.(.,,.:I TZQ.)P'CI' IN1'0IZfV1ATI0N
.!'i'njcct.N•iIII c . _.CROWN R1DG1's AT T3:DAT.1101,M
'Cont,zct Ilason: in.,rres N.ul�enn.-pss, Jr. , P.I:.�'.l'hr,nc Nflrillicr: �� Q i $15-0775
,'1'hi':i.w�rlcsltcct ,1pI)lil to: in Drninng Area 1 B
:}.' '.';!('uti•i,l.•rrli/i+•rlunl+lu,ia'J: tl+'run!'iirn+.S'IPIl•1111%
IT' ` nl S1CN INFORMATION - Attach �,t 1)1)01 int, calcul;7tiails7documcnt;ztion. 'I'lle soils rclSort must be
'• :.. b;tr:cd upon an dclu;ll licl(I illvrstil;;ltion ;znd !:oil'boriiil .. C oi`iitty soil maps nl-c riot tin acceptable rcc
(if•�;oi1s Infornl,ltioil. All cicv:lliow; sllall lit in feet nlc;nl'sc;i level (fmsl).
Sc►ils•72clir,rf Sunrr,r;tr.y
Sciil"1'ypc �tC,rrr_.1�.
}]n1)1frntIoil I�irtc _._�i—•__—_— rn/Ilt lr C1/Isr/Sl` (r;ilr.Icrrr'��llruprirrlr units)
S1I,W I;1'ItiV;Iti011 _]�;F>3 _— I'i,r,;I (.5rrr.enrrrrl•11i Jr,lherl i."1'rrhlc rlr,+rNiuri)
`13�sii� nc`S�r+it f';Ir:rn,cicrs `�' �k`
I�(31'j;rl ,�ln]'lll .8. 15 _ inch (/, S iliry r.ii11!%rir;�'rf'irulrr'.�', I inch r.ncnl,fi)ro0w1's)
.if
DC,i,iZ;rl Vblftnzc 35.,906 c.f.>° C:g Z rr S--rr"�,
Dr,it v.dow01:.`I',rrrlc 1.54 _ _ (li,y.ti
R'Ist 1i 1)iril.01I'sions
Itl, t,R: 2, ]-12_
13,1SIIl ,�17C — �11, \ tI• = sq. l{. (1;buom rlir2rr.!11.rim1.e)
f3+�ili?cllurizc I'rclvidc(1 — It1,065 c I
T
f3;l.tiin'7�.ICwlltitirl>; .. .. ET .
�t,ttbill Elcv,,ftron _ 18: 00 1•nl.;l RE C .1.
il0r;fltiC 1 Icw;tlinn _ 22.61_ Cm:d 6 "C C
C'�ip• 6lcv;ition 23: 0 • I•,l,sl .. ' MAY P
„rsn S1VlJ Ii1:I 1.c� a, srl I'ar c I nt' :+ PRIW

PROJECT: CROWN RIDGE
PROJECT #: PW-220
DATE: 12102/02
REVISED:: 05105/03
NEW HANOVER COUNTY STORMWATER
TOTAL DRAINAGE AREA (AC)
PROPOSED IMPERV AREA (AC)= 0.83
% IMPER AREA = 1 0.360
PROPOSED PERVIOUS AREA (AC)= 1.48
u
% PERVIOUS = 0.640 /L
STATE RE IRED STORAGE FOR ST I F RAINTAL� 1 �, •��
NQ�F = 0.05 + 0,009 %I ' PERV =
R DFF = �0.373593097 /
R QU ED VOLUME =,0IN RUNOFFXARAX�560FIACI12 INIHR
OLUME CF) = 13
USE PREDEVELOPMENT C = 0.25
USE FULLY DEVELOPED C = 0.95
PROPOSED COMPOSITE "C" = .95 X .360 + .25 X .640
PREDEVELOPMENT INTENSITY WITH WORSTCASE 5 MIN T,
2 YR INTENSITY (INIHR)= 5.88
10 YR INTENSITY(INlHR)= 7.23
25 YR INTENSITY(INlHR)= 8.15
100 YR INTENSITY(INlHR)= 9.60
2 YR. PREDEVELOPMENT FLOW Q = CIA
Opre(CFS) = 3.40 C = 0.25
1 (INIHR) = 5.88
A = AREA{AC) = 2.31:
2 YR. POST DEVELOPMENT FLOW O = CIA
. Qpost(CFS) = G.82 C = a.�a
{'r , i ' , ' • , I (INIHR) = 5.89
A = AREA(AC) = 2.31
10 YR. PREDEVELOPMENT FLOW Q = CIA
Qpre(CFS) = 4.18 C = 0.25
I (INIHR) = 7.23
A = AREA(AC) = 2.31
10 YR, POST DEVELOPMENT FLOW O = CIA
i' Qpost(CFS) = 8.39 C = 0.50
I (INIHR) = 7.23
A = ARFA(AC) = 2.31
25 YR:.PREDEVELOPMENT FLOW Q = CIA
Qpre(CFS) = 4.71 C = 0.25
I (INIHR) = 8.15
A = AREA(AC) = 2.31
25 YR. POST DEVELOPMENT FLOW Q = CIA
Opost(CFS) = 9.46 C = 0.50
I (INIHR) = 8.15
A=.ARFA(AC) =2.31
100 YR. PREDEVELOPMENT FLOW Q = CIA
Cpre(CFS) = 5.55 C = ''0.25
I (INIHR) = 9.60
A = AREA (AC) 2.31_
100 YR,'POST DEVELOPMENT FLOW Q = CIA
Qpost(CFS) = 11.14 C = 0.50
I (INIHR) = 9.60
A = AREA(AC) = 2.31

PROJECT:
CROWN RIDGE
PROJECT #:
PW-220
DATE:
12102/02
POND" 1 A REVISED::
05105/03
501L AS GIVEN BY THE NEW HANOVER COUNTY SOIL SURVEY KUREB
HYDROLIC GROUP "A"
CURVE NUMBER
IMPERVIOUS = 98
OPEN SPACE (GOOD CONDITION) = 39
COMPOSITE CURVE NUMBER (CN) = 98 X (.360) + 39 X (.640) = 60.21
S = (10001CN) -10
PRECIPITATION 2 YR 24 HOUR STORM (IN) = 4,50
PRECIPITATION 10 YR 24 HOUR STORM (IN) = 7.00
PRECIPITATION 25 YR 24 HOUR STORM (IN) = 8.05
PRECIPITATION 100 YR 24 HOUR STORM (IN) = 10.00
2 YR RUNOFF =(P - .2S)^27{P + .8S) = 1.03
10 YR RUNOFF =(P - .2S)^21(P + .8S) = 2.62
25 YR RUNOFF =(P - ,2S)^21(P + .8S) = 3.39
100 YR RUNOFF =(P - .2S)^2/(P + "8S) = 4.93
TIME TO PEAK (Tp) (MIN) = (43.5 X AREA X RUNOFF)/POST Q
2 YR Tp (MIN) = F15.22
10 YR Tp (MIN) = 31,48
25 YR Tp (MIN) = 36.12
100 YR Tp (MIN) = 44.50
REQUIRED STORAGE
2 YR STORAGE (CF) _ (Qpost - Qpre)Tp X 1.39 X 60 =
10YR STORAGE (CF) _ (Qpost - Qpre)Tp X 1.39 X 60 =
25 YR STORAGE (CF) = (Qpost - Qpre)Tp X 1.39 X 60 =
100YR STORAGE (CF) = (Qpost - Qpre)Tp X 1.39 X 60 =
POND I}IMENTIONS AND VOLUMES ABOVE PERMANENT POOL '
ELEV.
SA POND
INCREMENTAL
CUM VOL
(FT)
(SF)
VOL (CF)
(CF)
18
1881
19
3206
2544
2544
20 I'
4537
3872
6415
21
6230
5384
11799
22
8280
7255
19054
23
10242
9261
28315
4347
11050
14293
20745
STATE STORAGE DEPTH= - 3.34 o r r
STATE STORAGE POND ELEVATIO � 21.34 �-
2 YR STORM STAGE =
1.47
2 YR STORM POND ELEVATiON
119.47 "
10 YR'STORM STAGE =
2 86
10 YR STORM POND ELEVATION = 20.86
25'YR'STORM STAGE w
3.34 ✓ '
25 YR STORM POND ELEVATION
121.34
100 YR STORM STAGE =
4.18
100 YR STORM POND ELEVATION
122.18

.t'!<ATION BASIN OPFI:R:1T(ON AND n���iN"!'�,N��NCia,�Garr MT�Mt
Very rrltlnl[ producirll; r;linf;tll c�7cnt tnul.at.lc,1�;E i�io'iltiily inspect the infiltration system 1'c>rcroSion,
;iecturlu[ation, vegetative cover, and gel) CI-al:coi
Vnir eroded areas I11 medhicly, reoced aS ncccnnry_to nia'hlthin'IdCgU;ltC vCf etatiVC cover, mow
�;ctaicd cover to nnajntain n nlaxinillm height ofsix iiiclics;:ancl remove trash as, nccciccl.
ARer every rtlnoff larodticirlg rainfall cvcnt and ;lt.lczs.i'illonthly inspect the bypass, inflow and.,overffow
sti`tictlires for blockage ;lad dcicrioration: Renlovc.;iiiy:blocl��'�,e and repair the structure to approyed design
Av ,soccii icatiorls.
;tltl;l, 01110yc•aecumulmed seditllcnt front ctreatmot;syoUl':116d,infilirntion basin annually or when dcplh
iii thc'prctrcatntent rn�it.is reduced 7 �`%, 11'tile ori'l;iritll d'e"si ii depth• The system shall be restored to the
onginal dcsil,n depth Ntriihout over-c. rating;. Overykciiw,Q. g may cause the required Water table
+�;.sephtion to be reduced and nny compromise the obiljSy o.n1hc,system to perl'orm as designed. R movcd
!m1inlcnt shall be disposed of in nn appraphatc n1`anjici"nnd'sh;�ll not be Iintidlcd in a manticrthat will
ndvcisely impact Water duality (.i.c. stockpiling; near a gionniWtitcr tl•catmew device or stream, etc.).
n.bcrtchnnalk shall be csrlbbAwd In the prwrcatrncllt Ulljtl :Thc bc11c11m ir1C will document dic•original
'i i':. dcsigri depth so that accurate scdirncnt ;lccumulntinn:lerldiiit; ctln be taken. Tic nlalsuring dcvicc used to
dL'[CAN the depth w the benchmark shall be such that' iliwi[1•'g ivc an accurate depth reading; and not
" 1'Cncllly pencirate into accunlul;tted sediments.
When.thc. desil;n dep{I1 rcac �_� Net in did pr'cti,critntent unit, the scdinichtshall be
rcriltivcd [•ronl bath the pr-(, . nit ;rnd fh'.Jnfiltrri(ion llasir±.
j .�', �C. �t p f✓v >�C.S D rt S c �� Le. j� :;f'.� -410
s ......
(� Crn o
�.. f.l'tlic )ivi.6on detcrnlirncs Thal the system is lililing" this--;ystcm will immediately be repaired to onginal
! . (TcSQ'Il Quil ulions, 11'111e systcrn ctlnnot bc•l "to p`cWnl N de gn function, other stonlnWater
c';;,' .! t;;controiidevtccs ;is r111nwcd by NCAC 2[l . i (10(} 111uSt E>c:dc5il;liMApprnvcd and constructed,
'i',a;cktiawlcdl;c and ngree by lily sit,11lmurc below tlr<It,l.alil;�;cspo:isiblc:fnr.thc; cr!'ormancc of' the [ivc
nihintennncc.l)roCCLh1res lusted above. I ,1�trcc to notily'lb, V3� ciG,iiiy; ps,�blcros; With the system or prior• to any
i'cliati req to'tllc systcnl or reslnont;iblc party.
;['riilTNa'li�c ;uuf "I'hlc: John Conner, Mran tE;er
1030 CommontaeWtti :fir.: Qfjma:ngton,, NC 28405
AddressQ
Siriat6rc::4,' L �`'• �'�"� 'tom---._� - �/. �3/.O3
NO it!:. 71ur Ir?i;rill, pray :cltnrrlrl riul 1w rr Man S0% rrf'lhe !ohs bare• been sohl and e
trifrlttr!'rrf'lbesrrhrllri.eir,tt lur.t• hr.•r.•n nomo l the lrtr,.virlenl.° i `�.
a Notary 1'rrblic for Ilie;,Sl�lc nr�� '( runty nt'
i� �5 ►C` cln hereby terrify 111:11 � 1 �. personally nppau'ccl before ntc lbis��
S 4 -•
Z .
cl;ty of, _ _ uul acl;nuwlech,c Iftc clt:c cxcc�iiii3n.ol tfiG'Tnrict',nr in(illrtlinn b;mkl niiiinlcnancc r•cctuircincnts.
Witncs�'•lily ;,li,jr?bt:k
.Ky{'!•�'zi',,�J
SPOOL YAi�y�iN - MYcnnrminsinnc.�p'iiC,;vi�'.;�
•t;�.; firr ! y �G � ,
:•r�,ti,t scats-it'k3'l�;' r�st�''�p •,�.�` ls.,,,e .t nt'. a
AN

P. 1
* * COMMUNICATION RESULT REPORT ( MAY.12.2003
FILE MODE OPTION
18 MEMORY T------- -
------------------------------------
P.EPS,DN FOR ERROR
E-1) HANG UP OR LINE FAIL
E-3) NO ANSWER
ADDRESS (GROUP)
______
98150593
7:57AM )
TTI
RESULT
-------OK -
NCDENR WIRO
PAGE
--------------
P. 5/5
E-2) BUSY
E-4) NO FACSIMILE CONNECTION
FAX COVER SHEET
Date: May 12, 2003 No. of Pages: 5
To: Pat Snoddy From: Laurie Munn
Company: Stroud Engineering Water Quality Section - Stormwater
FAX #: [phone] FAX # [phone]
Phone # [phone]
DWQ Stormwater Project Number: SW8 030222
Project Name: Crown Ridge at Tidalholm
MESSAGE:
Pat,
Please continue to calculate the amount of runoff per the DENR method of storage. I
have talked with Linda Lewis, and since the soils in the area are good and you are not
Iocated next to SA waters, you can use the 2" event as your design storm, but you need to
show in your calculations that the basins will hold the 25 yr — 24 hour storm event. You
can include the volume that infiltrates during the event (24 hours) as a storage amount.
For example, on Basin 113, the 25 yr- 24 hour event produces 61,424 cubic feet of runoff.
The basin can hold 40,674 cubic feet. Show me that the remaining volume (20,750 cubic
feet) will infiltrate in the first 24 hours.

Michael F. Easley, Governor
- o�oF W A r�RQ�
r
Mr. John Conner, Manager
Bill Clark Homes of Wilmington, LLC
1430 Commonwealth Drive
Wilmington, NC 28405
Dear Mr. Conner:
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W, Klimek, P.E. Director
Division of Water Quality
April 23, 2003
Subject: REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 030222
Crown Ridge at Tidalholm
New Hanover County
The Wilmington Regional Office received a Stormwater Management Permit Application for
Crown Ridge at Tidalholm on February 17, 2003, A preliminary review of that information has
detenrnined that the application is not complete. The following information is needed to continue the
stor:-%,rater review-. j
I
1. It I ooks 1 ike o ff-site runoff may be entering Infiltration Area 113. Please include this
volume of runoff in your calculations. If the runoff is not intended to enter the basin,
please provide information as to where this water goes. I have attached a copy of the area
of concern.
2. Please provide additional spot elevations at the site entrance. It is unclear 'how the
entrance is draining. All built -upon areas must enter the pond.
�4 3. Please specify pond / swale side slope vegetation and the wetland species to be planted
on the 6:1 shelf. Also, please label the slopes of the basin as 3A or flatter.
4. The information in the calculations does not match the information in the Infiltration
Basin Supplement for Basin 2 and Basin 3. Please revise so that they contain the same
information. Also, please seal the calculations.
f 5. Please contact me to make arrangements for Vincent Lewis to do the soils investigation.
If he has already been to this site, please advise.
J 6. Please provide a copy of the proposed deed restrictions to include all required conditions
and limitations for high density residential areas. I have included a copy of required
covenants and deed restrictions.
N. C. Division of Water Quality 127 Cardinal Drive Extension [phone] Customer Service
wt
Wilmington Regional Office Wilmington, NC 28405 [phone] Fax [phone] NCUENR

Mr. John Conner
April 23, 2003
Stormwater Project No. SWS 030222
7. It is necessary to provide off-line bypass unless the ponds are designed for the 25 year
storm event. Your calculations contain designs for the 25 year storm event. If you intend
to use this storm event to avoid off-line bypass, then you must update the supplements to
show the 25 storm elevation as the state storage elevation. Otherwise, you must provide
off-line bypass for each basin. Infiltration Areas I and I may be combined.
Please note that this request for additional information is in response to a preliminary review.
The requested information should be received by this Office prior to May 23, 2003, or the application
will be returned as incomplete. The return of a project will necessitate resubrnittal of all required items,
including the application fee.
If you need additional time to submit the information, please mail or fax your request for a time
extension to the Division at the address and fax number at the bottom of this letter. The request must
indicate the date by which you expect to submit the required information. The Division is allowed 90
days from the receipt of a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an
approved. Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to
enforcement action pursuant to NCGS 143-215.6A.
Please reference the State assigned project number on all correspondence. Any original
documents that need to be revised have been sent to the engineer or agent. Ali original documents must be
returned or new originals must be provided. Copies are not acceptable. if you have any questions
concerning this matter plcase feel free to call me at [phone].
Sincerely,
Laurie Munn
Environmental Engineer
RSSI:Ism S:IWQSISTORMWAT\ADDINFO120031030222.apr03.doc
cc: Laurie Munn
James H. Fentress, Jr., P.E.

AND PROTECT ivr; %-uv
In accordance with Title 15 NCAC 2H.1000, the Coastal Stormwater Managernent Regulations, deed
restrictions and protective covenants are required for certain developments where lots will be subdivided and
sold. Deed restrictions and protective covenants are necessary to ensure that the development maintains a "built -
upon" surface area consistent with the applicable regulation limiting built -upon area. The following deed
restrictions and covenants must be recorded prior to issuing the Stoanwater Management Permit:
For All Projects:
The following covenants are intended to ensure ongoing compliance with State Stormwater Management
Permit Number _ , as issued by the Division of eater 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 tinder
them.
4. The covenants pertaining to stormwater rr►ay 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.
TI Low Density Residential Subdivisions (In addition to I.1- L5 and all others that apply)
The maximum allowable built -upon area per lot Is square feet. This allotted amount.
includes any built -upon area constructer) 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.
If the BUA per lot varies, record as follows and provide a complete tot listing with proposed BUA:
The rriaxin►um allowable built -upon area per lot is as follows:
Lot # BUA Lot # BUA Lot # BUA
These allotted amounts include 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, coquina and
parking areas, but does not include raised, open wood decking, or the water surface of swimming pools.
2 Filling in or piping of any vegetative conveyances (ditches, swales, etc) associated with the
development except far average driveway crossings, is strictly prohibited by any persons.
3. .Each lot will maintain a 30' wide vegetated buffer between all impervious areas and surface waters.
4. All roof drains shall terminate at least 30' from the mean high water mark of surface waters.

apply)
J. Filling in, piping or altering any designated 5:1
prohibited by anv persons.
curb outlet swale associated with the development is
?. This project proposes a curb outlet system: Each designated curb outlet svvale shown on the approved
plan must be maintained at a minimum of 100' long with 5:1 (H: P) side slopes or flatter, have a
longitudinal slope no steeper than 5%, tarty the flow front a 10 year storm in a non -erosive manner,
and maintain a dense vegetated cover.
IV Project lies within CAViA's AEC: (In addition to I.1-I5 and all others that apply)
"Lots within CA1t A= Area of Environmental Concern may have the permitted maximunt built -upon area
reduced due to CAMA jurisdiction within the AEC. "
V. For Low Density Commercial Subdivisions: (In addition to 1.1-I.5, 11.1-H.4 and all others that apply)
Each lot whose ownership is not retained by the perm Wee, shall submit a separate low density
storinwater permit application to the Division of Water Quality and receive a permit prior to
construction. Lots retained by the permittee shall be submitted as modifications to the original permit.
Z. If one lot exceeds the allowable -built -upon area, the entire subdivision is subject to the high density
design criteria.
VI For High Density Commercial Subdivisions: (In addition to all others that apply)
The ma_rintuni allowable built -upon area per lot is square feet. This allotted amount
includes any built -upon area constructed within the lot property boundaries, and thatportion of the
right-of-wav 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, coquina and parking areas, but does
not include raised, open wood decking, or the water surface of swimming pools.
If the BUA per lot varies, please record as follows and provide a complete lot listing with proposed
BUA:
The maximum allowable built -upon area per lot is as follows:
Lot # BUA .Lot # BUA Lot # BUA
These allotted amounts include 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, coquina and
parking areas, but does not include raised, open wood decking, or the water surface of swimming pools.
?. All runoff from the built -upon areas on the lot must drain into the permitted system. This may be
accomplished through providing roof drain gutters which drain to the street, grading the lot to drain
toward the street, or grading perimeter swales to collect lot runoff and directing them into the
stornzwater system or into the street. Lots that will naturally drain into the system are not required to
provide these additional measures.
3. Each lot whose ownership is not retained by the permittee, shall submit a separate stormvvater permit
application to the Division of Water Quality and receive a permit prior to construction,
2

V[I. For Hi;h Density Residential Subdivisions: (In addition to L I -L5 and all others that apply)
1. The maximum allowable built -upon area per lot is 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, coquina and parking areas, but does
not include raised, open wood decking, or the water surface of swimming pools.
If the BUA per lot varies, please record'as follows and provide a complete lot listing with proposed
BUA:
The maximum allowable built -upon area per lot is as follows:
Lot # BUA Lot # BUA Lot # BUA
These allotted amounts include 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, coquina and
parking areas, but does not include raised, open wood decking, or the water surface of swimming pools"
Z. All runoff from the built -upon areas on the lot must drain into the permitted system. This may be
accomplished through providing roof drain gutters which drain.to the street, gracing the lot to drain
toward the street, or grading perimeter swales to collect lot runoff and directing them into the
stormwater system or into the street..Lots that will naturally drain into the system are not required to
provide these additional measures.
VIII For Shopping Centers with Outpareels or a Future Development allotment: (In addition to 1-1 through r
5 and all others that apply)
The maximum built -upon area for outparcel(s) and future areas shown on the approved plans is as
follows:
Outparcel # BUA
Future Development
These allotted amounts include any built -upon area constructed within the property boundaries, and
that portion of the right-of-way between the lot lines and the edge of the pavement. Built upon area
includes, but is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina and
parking areas, but does not include raised, open wood decking, or the water surface of swimming pools.
2. The runofffrom all built -upon area on the outparcel orfuture area must be directed into the permitted
stormwater control system.
3. Built -upon area in excess of the permitted amount will require a permit modification.
4. The connection from the outparcel s collection system into the stormwater control shall be made such
that short-circuiting of the system does not occur.
5. Each outparcel or future development tract whose ownership is not retained by the permittee, shall
submit a separate offsite stormwater permit application to the Division of Prater Quality and receive a
permit prior to construction.

40' R/W NI3TE
1• .ALG,RGADS
6' 28' B-6 0' ANDS #DECOR
2. ' THERE', SHA
+ y 11
3 : 1 MAX Aar f t. 1 �' " 59.5 A }
„ z 3
or ft :1 MAX WITHIN P!1
1. PER FT. SLOPE PAVING
24" M00€FIEF 6" ABC
VALLEY GUTTER'H,ry,;Jy.
TYPICAL STREET SECTION 70'=-a
_._.. N.T.S.
'CLLAGI sEj:TfnN '1
109 35. PiCE 156
TYPICAL STREET INTERS
DRAINAGE
AREA 41 B I �,
3.85 ACRES a I �
r r CIW
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41,
46/
t1 B j� x i �,6
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TF�.A'' IV 44 t {�� 43.
A7" - /Lu
f t
[cpv@ 0. C�
$ 1-0-1 UTILITY EASEME T iAup y .........
4 5" RCP 0.3x q ....__.. 7%725.87 -- TOP
RCP 0.3x
-— `LL
FE �F 2�.18" RCP e C
15' RCP 0"0. 3�1

r
RECEIVED
F E B 18 Z003
Cwkm cods Funded
Post Office Box 10161
Wilmington, North Carolina 28404
Tel/Fax: [phone]
Consulting Environmentai Scientists
January 09, 2003
Mr. Pat Snoddy, Protect Engineer
Stroud Engineering, P.A.
102-D Cinema Drive
Wilmington, North Carolina 28403
SUBJECT: Report of Assessment of Seasonal High Water Table Conditions
and Field Measurement of Hydraulic Conductivity (K,,l)
Wynridge at Lamb's Bluff
Federal Point Township
Wilmington, North Carolina
Dear Mr. Snoddv:
Eastern Soils Limited (ESL) is pleased to submit this report for the subject site. Thank
you for the opportunity to assist you.
Background
Three stormwater (SW) ponds are proposed for the proposed Wynridge at Lamb's Bluff
housing development. An assessment of the depth to the seasonal high water table
(SHWT) and measurement of the hydraulic conductivity (KS„,) at three locations proposed
for the SW ponds is required for design and permitting activities. The following is a
report of our findings and conclusions. Field soil profile descriptions and maps showing
the. approximated locations of the hand auger borings are attached rot' reference.
Field Activities and Observations
Three hand auger borings were advanced to a depth of 60 to 84 inches, depending on soil
conditions, at each of the locations proposed for the SW ponds. Hand auger boring 1
(HA 1) was made adjacent to the location stake placed by Stroud ingineering personnel.
The next two borings (HA2 and HA3} were made in nearby locations to confirm the
findings made in the first boring. The boring locations are marked in the field by green
pin flags Nvilh the boring number written on them. The characteristics of the soils,

Report ol'Assessment of SHWT Conditions
Wynridge, Wilmington, NC
Page 2
including color, texture, restrictive horizons, depth to free water, and any other properties
that could affect water movement and/or water table depth, were recorded on the attached
field sheets.
We had planned to measure the K,,, ofthe soils using a compact constant -head
permeameter ("Amoozemeter") at the approximate center of each proposed pond site.
Field measurements were not made, however, because of the rapid permeability of the
soils. The permeability of the soils exceeded the upper measurement limit of the device.
Estimates of the K511t are presented in this report. Our observations by pond number
tallow:
Permeability
Pond No. SHWT M.)* (in/hr1** Snil Series*** Soil Texture
l
4.17 T
>6.0
Kureb
sand
2
6.25
>6.0
Kureb
sand
4.67
>6.0
Kureb
sand
*Note: Below ground surface. Measured at location stake placed by Strout! Engineering (Boring HA I).
**Note: Estimated. Exceeded upper limit of CCHP ("Amoozemeter").
***Note: Or similar soil.
Conclusions
The depth to the SFIWT exceeds that required for stormwater infiltration ponds. The
permeahility of the soils is rapid and exceeds that rerquired for stormwater infiltration
ponds.
We would be happy to meet with Vince Lewis, DWQ Regional Soil Scientist, on the site
if necessary. if you have any questions about this report or the information it contains,
please call us at 910-686-9868.
,i
Sincerely,;:,,,
W. R. (Bill) Dunlop, Jr., LSS
NC Licensed Soil Scientist 91095
Attachments: Hand Auger Boring Locations
Field Sol] Profile Descriptions
EASTERN SOILS LIMITED P.O. Box 10161. Wilmington, NC 28404

SOIL PROFILE DATA SHEET
Page No. J o y
Date oi/65/93 Site ri - County A
Description 8y I dapping Unit,jr— Photo -F
Remarks —?� j;T_ 1
Profile No. 1 A 1
Percent Slope z, Z Free Water �i D Erosion --
Position on Slope '�J�,�,L
Vegetation
Horizon
Depth
Color
Texture
Structure
Consistence
Mottles
PrN_=nq=8-
Clay Films
pH
a- Z-
/0r,/Z`A
1 wt r
ri
z-Z
10r4713
5
SA
V
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Slot?a cs
Additional Notes o 5--a
Profile No. /J/�
Percent Slope e. -a— j Free Water Erosion
Position on Slope b0i f...,
i vegetation "
Horizon
Depth
Color
Texture
Structure
Consistence
Mottles
�e -
Clay Films
,' pH
Q -
oT2
S
j = _
!
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i
Addmonal Notes 40 'cam.. —, h?lia 'i I ' -'"" l ,1a-0t,1 • 2 P. 1a-03 --+' c=,.) s-0.. /-G H't(
Series
Profile No. AIA 3-
Percent Slope 2- 3 1 Free Water 7 t " Erosion —�
Position on Slope 5, d,
Vegetation
Horizon
Depth
Color
Texture
Structure
Consistence
Mottles
T s
Clay Films
pH
y/-3 A
to J/
`>
S c
1/ �^
is ; /Q�`'�
- -
116.5 3
.4
'/�
Additional Notes LI-0 ' A� 1 n ;-� •� 1. �; c�� s 1 DJi'` o.6L,"-P- )9--1 1 xaN )IG h`AI
Series ,,, t

SOIL PROFILE DATA SHEET
Palle No.ZvT3
Date p ! a ? Site „ d COUntV
Description By Mappin; Unit, ,,: - Photo
Remarks r/-= , 1 c �L . , - — — —
1'raiile �o. 4�/l )
Per;.;:m Slope 4 Z I Free Water 7'} N ( Erosion
Position on Slope
Vegetation `
Horizon
Depth
Color
Texture
Structure
Consistcnce
Mottles
Clay Films
pH
�-
vr4vl
S
A.
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$
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2 �rL/3
S
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7� B�
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✓ '�
3 z
LSeries
Profile No. jj 11
Percent Slope z. 7-- ( Free Water tD r� - "' ( Erosion
Position on Slope
`Ieaetation
Hor:=
Depth
Color
Texture
Structure
Consistence
Mottles
Fragments
Clay Films pH
l�
�I
Additional Notes
Series
Profile No.
Percent Slope Z I Free Water 7 $ " I Erosion
Position on Slope
Vegetation
Horizon
Depth
Color
Texture
Structure
Consistence
Mottles
Fragments
Clav Films
l pH
i
Additional Notes k e 1 t /q [ I-(14 Z b� f /� s el w 7 r3
Series

SOIL PROFILE DATA SHEET
Palle No. 3., V
Date D r 0 Z 03
Description By dapping Unit, ,, Photo z-7
Remarks R„ 5,
Profile No.
Percent Slope 4-2-- ! Free Water 5 (o ' Erosion -�
Position on Slope �,w s,�c
Vegetation L;,�
Horizon
Depth
Color
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Additional motes q + Lo01_,,,J�� y F,n (c M - -
Series
Profile No.
Percent Slope -2— 1 Free Water z,D ' Erosion
Position on Slope h 5, J ,
Vegetation
Horizon
Depth
Colo
Texture
Structure
onsistence
Mottles
Fragments
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-
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5 L7/
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4
Additional Notes
Profile No. 1 _-5
Percent Slope L Z Free Water Erosion
Position on Slope
Vegetation
Horizon
Depth
Color
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Consistence
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Fragments
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pH
u- • o
6-y`1
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Additional ,'Votes
Series

60s1erm Gods .."0r'miled
Post Office Box 10161
Wilmington, North Carolina 28404
Tel/Fax: [phone]
Consulting Environrnentat Scientists
January 09, 2003
Mr. Pat Snoddy, Project Engineer
Stroud Engineering;, P.A.
102-D Cinema Drive
Wilmington, North Carolina 28403
SUBJECT: Report of Assessment of Seasonal High Water Table Conditions
and I; ield Measurement of Hydraulic Conductivity (K,,.,t)
Wynridge at Lamb's 13htff'
Federal Point Township
Wilmington, North Carolina
Dear Mr. Snoddy:
Eastern Soils Limited (ESL) is pleased to submit this report for the subject site. Thank
you for the opportunity to assist you.
Background i
Three stormwater (SW) ponds are proposed for the proposed Wynridge at Lamb's Bluff
housing development. An assessment of the depth to the seasonal high water table
(SHWT) and measurement of the hydraulic conductivity (KG,„) at three locations proposed
for the SW ponds is required for design and permitting activities. The following is a
report of our findings and conclusions. Field soil profile descriptions and maps showing
the approximated locations of the hand auger borings are attached for reference.
Field Activities and Observations
Three hand auger borings were advanced to a depth ofb0 to 84 inches, depending on soil
conditions, at each of the locations proposed for the SW ponds. Hand auger boring i
(HAI) was made adjacent to the location stake placed by Stroud Engineering personnel.
The next two borings (HA2 and HA3) were made in nearby locations to confirm the
findings made in the first boring. The boring locations are marked in the field by green
pin i7ag, with the boring number written on them. The characteristics of the soils,

Report of Assessment of SFI WT Conditions
Wwridge. Wilming(on, NC
page 2
including color, texture, restrictive horizons, depth to free water, and any other properties
that could affect water movement and/or water table depth, were recorded on the attached
field sheets.
We had planned to measure the Ks,,, of the soils using; a compact constant -head
permeameter ("A rno oze meter") at the approximate center of each proposed pond site.
Field measurements were not made, however, because of the rapid permeability of the
soils. The permeability of the soils exceeded the upper measurement limit of the device.
Estimates of the Kti„, are presented in this report. Our observations by pond number
follow:
Permeability
Pond No. SI-IWT MAI,' fin/hr)** Soil series*** Soil Texture
1
4.17
>6.0
Kureb
sand
2
6.25
>6.0
Kureb
sand
3
4.67
>6.0
Kureb
sand
*Note: Below Sround surface. Measured at location stake placed by Stroud Engineering (Boring HA I).
**Note: Estimated. Exceeded upper limit of CCHP ("Arioozemeter").
***Note: Or similar soil.
Conclusions
The depth to the SHWT exceeds that required for storrnwater infiltration ponds. The
permeability of the soils is rapid and exceeds that rerquired for stormwatcr infiltration
ponds.
We would be happy to mect with Vince Lewis, DWQ Regional Soil Scientist, on the site
il'necessary. if you have any questions about this report or the information it contains,
please call us at 910-686-9868.
Sincerely,
OR� `
�n
W. R. (Bill) Dunlop, Jr., LSS
NC Licensed Soil Scientist 41095
Attachments: Hand Auger Boring Locations
Field Soil Profile Descriptions
EASTERN SOILS LIMITED P.O. Box 10161 Wilmington, NC 29404

SOIL PROFILE DATA SHEET
n�
Pa�,e No.
Date Dl DSite CountyAl',
Description By i� ' l Mapping Unit C . Photo 7
Remarks 7 j �4
Profile No. 1A A 1
Percent Slope �e- Z I Free Water �i- -D Erosion --
Position on Slope „ .J�,�},L
Vegetation "-
Horizon
Depth
Color
Texture
Structure
Consistence
Mottles
PrugminW,
Clay Films
pH
L-L
1oY�7/�
�
Sa
tJ
loY�h�3
5 rt.�-s
26 -31d
3b-SD
�
1
Additional Notes
Profile No.
Percent Slope ? Free Water 2- f Erosion
Position on Slope bo 'eaetation
Horizon
Depth
Color
'Fexture
Structure Consistence
Mottles
tr -
Clay Films I pH
I
Additional Notes e�p ' cam, s -i "'. 'l- S-0 ? , ,4 4 (
genes A,.
Profile No. S
Percent Slope 2 - 3 1 Free Water -7 5 Erosion —�
Position on Slope 5, ��
Vegetarian
Horizon
Depth
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Series

SOIL PROFILE DATA SHEET
Page No.2-
Date p / o ; p 3 Site County
Description 13y � r - IMappinry Unit., Photo 77
Percent Slope c Z f Free Water 7, N Erosion
Position on Slope L"
Vegetation -
Horizon
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. d:.':.. -:al Notes - ct 1 D �a {
Series
Profile No.
Percent Slope 4 -z- Free Water tDErosion
Position on Slope , •4,,,,,,
Vgetadon
Hors: on
Depth
Color
Texture
Structure
Consistence
Mottles
Fragments
Clay Films pH
Additional Notes (C2 ) t /)
Series
Profile No.------�-�-
Percent Slope i- Z Free Water 78 " Erosion �-
Position on Slope 1 0 ,�
Vegetation
Horizon
Depth
Color
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pH
Additional Notes , k e l f i4 ( V' /-(s{ Z- b < 7L e/ I-f 7 r3"
r+- i4Ai . - I -,n.41-4
Series �C�
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SOIL PROFILE DATA SHEET
Pa�,e No. 3
Date Site County
Description By iviappirig Unit Photo ?--7
Rernarks 5.1. Z
Profile Nil. #A /
Percent Slone 4.•-e-,- Free Water S(� '� Erosion'
Position on Slope {,, s;�lc
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Horizon
Depth
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Series
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Position on Slope S ) ,�
Vegetation -
Horizon
Depth
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Position on Slope
Vegetation
Horizon
Depth
Color
Texture
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Mottles
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