HomeMy WebLinkAboutSW8101018_HISTORICAL FILE_20101129STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 101 18
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2 010 ►1 2�1
YYYYMMDD
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
November 29. 2010
Robert E. Langdon II, Manager
RHGC Investments, LLC
223 Highway 70 East, Suite 100
Garner, NC 27529
Division of Water Quality
Coleen H. Sullins
Director
Subject: State Stormwater Management Permit No. SW8 101018
Cape Fear Dialysis
High Density Commercial Wet Detention Pond Project
New Hanover County
Dear Mr. Langdon:
Dee Freeman
Secretary
The Wilmington Regional Office received a complete Stormwater Management Permit Application for
Cape Fear Dialysis on October 29, 2010. Staff review of the plans and specifications has determined
that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A
NCAC 2H.1000 and Session Law 2008-211. We are forwarding Permit No. SW8 101018 dated
November 29, 2010, for the construction of the subject project.
This permit shall be effective from the date of issuance until November 29, 2020, and shall be subject
to the conditions and limitations as specified therein. Please pay special attention to the Operation
and Maintenance requirements in this permit. Failure to establish an adequate system for operation
and maintenance of the stormwater management system will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right
to request an adfudicatory hearing upon written request within thirty (30) days following receipt of this
permit. This request must be in the form of a written petition, conforming to Chapter 150E of the
North Carolina General Statutes, and filed with the Office of Administrative Heaings, P.O. Drawer
r
27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and
binding.
If you have any questions, or need additional information concerning this matter, please contact Chris
Baker, or me at (910) 796-7215.
Sincerely,
Georgette `Scott
Stormwater Supervisor
Division of Water Quality
GDS/csb: S:\WQS\STORMWATER\PERMIT\101018.nov10
cc: Phil Tripp, P. E., Tripp Engineering, P. C.
New Hanover County Building Inspections
City of Wilmington Development Services
New Hanover County Engineering
Wilmington Regional Office
Wilmington Regional Office One
127 Cardinal Drive Extension, Wilmington, North Carolina 28405 1VorthCarol ina
Phone: 910-796-72151 FAX: 910-350-20041 Customer Service: 1-877 623-6748 o //
Internet: w ncwaterquality.org �/ ati� mild
State Stormwater Management Systems
Permit No. SW8 101018
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY COMMERCIAL 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
RHGC Investments, LLC
Cape Fear Dialysis
Enterprise Drive, Wilmington, New Hanover County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with the
provisions of 15A NCAC 2H .1000 and Session Law 2008-211 (hereafter collectively
referred to as the "stormwater rules') 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 November 29, 2020, and
shall be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. 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 in Section 1.8 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 81,927 square feet of
impervious area.
3. A 50' wide vegetative buffer must be provided adjacent impounded structures,
streams, rivers and tidal waters.
4. The tract will be limited to the amount of built -upon area indicated on page 3 of
this permit, and per approved plans. The built -upon area for the future
development is limited to 4,720 square feet.
5. 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.
6. The runoff from all built -upon area within the permitted drainage area(s) of this
project must be directed into the permitted stormwater control system.
Page 2 of 7
State Stormwater Management Systems
Permit No. SW8 101018
7
The following design criteria have been provided in the wet detention pond and
must be maintained at design condition:
a. Drainage Area, Acres:
Onsite, ft :
Offsite, ft2:
b. Total Impervious Surfaces, ft2:
Onsite, ft2:
Offsite, ft2:
C. Design Storm, inches:
d. Average Pond Design Depth, feet:
e. TSS removal efficiency:
f. Permanent Pool Elevation, FMS.�:
g. Permanent Pool Surface Areq, ft
h. Permitted Storage Volume, ft :
i. Temporary Storage Elevation, FMSL:
j. Pre-dev. 1 yr-24 hr. discharge rate, cfs:
k. Controlling Orifice:
I. Orifice flowrate, cfs:
M. Permitted Forebay Volume, ft3:
n. Fountain Horsepower
o. Receiving Stream/River Basin:
P. Stream Index Number:
q. Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
2.
2.9
126,222
None
81,927
81,927
None
1.5
3
90%
32
9,521
10,351
32.9
3.66
2"0 pipe
0.06
4,740
N/A
Smith Creek / Cape Fear
18-74-62
"C; Sw"
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.
During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
The permittee shall at all time provide the operation and maintenance necessary
to assure the permitted stormwater system functions at optimum efficiency. The
approved Operation and Maintenance Plan must be followed in its entirety and
maintenance must occur at the scheduled intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and re -vegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow
spreader, catch basins and piping.
a. Access to the outlet structure must be available at all times.
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.
Page 3 of 7
State Stormwater Management Systems
Permit No. SW8 101018
5. The facilities shall be constructed as shown on the approved plans. This permit
shall become void unless the facilities are constructed in accordance with the
conditions of this permit, the approved plans and specifications, and other
supporting data.
6. Upon completion of construction, prior to issuance of a Certificate of Occupancy,
and prior to operation of this permitted facility, a certification must be received
from an appropriate designer for the system installed certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting documentation. Any deviations from the
approved plans and specifications must be noted on the Certification. A
modification may be required for those deviations.
7. 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.
8. Access to the stormwater facilities for inspection and maintenance shall be
maintained via appropriate recorded easements at all times.
9. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further development, subdivision, acquisition, lease or sale of any, 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.
10. Prior to the construction of any permitted future areas shown on the approved
plans, the permittee shall submit final site layout and grading plans to the
Division for approval.
11. A copy of the approved plans and specifications shall be maintained on file by
the Permittee at all times.
12. 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.
III. GENERAL CONDITIONS
This permit is not transferable to any person or entity except after notice to and
approval by the Director. In the event of a change of ownership, or a name
change, the permittee must submit a completed Name/Ownership Change Form
signed by both parties, to the Division of Water Quality, accompanied by the
supporting documentation as listed on page 2 of the form. The approval of this
request will be considered on its merits and may or may not be approved.
Page 4 of 7
State Stormwater Management Systems
Permit No. SW8 101018
The permittee is responsible for compliance with all permit conditions until such
time as the Division approves the transfer request. Neither the sale of the project
nor the transfer of common area to a third party constitutes an approved transfer
of the stormwater permit.
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) having jurisdiction.
5. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
6. The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
7. The permit remains in force and effect until modified, revoked, terminated or
renewed. The permit may be modified, revoked and reissued or terminated for
cause. The filing of a request for a permit modification, revocation and re -
issuance or termination does not stay any permit condition.
Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
10. The permittee shall notify the Division of any name, ownership or mailing address
changes at least 30 days prior to making such changes.
11. The permittee shall submit a permit renewal request at least 180 days prior to the
expiration date of this permit. The renewal request must include the appropriate
documentation and the processing fee.
Permit issued this the 29th day of November, 2010.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for coigen H. 6uwuns, uirector
Division of Water Quality
By Authority of the Environmental Management Commission
Page 5 of 7
State Stormwater Management Systems
Permit No. SW8 101018
Cape Fear Dialysis
Stormwater Permit No. SW8 101018
New Hanover County
Designer's Certification
I, , as a duly registered in the
State of North Carolina, having been authorized to observe (periodically/ weekly/ full
time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specifications:
Signature
Registration Number
Date
SEAL
Page 6 of 7
State Stormwater Management Systems
Permit No. SW8 101018
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. Required drawdown devices are correctly sized and located per the
approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
15. The required system dimensions are provided per the approved plans.
16. All components of the stormwater BMP are located in either recorded
common areas, or recorded easements.
cc: NCDENR-DWQ Regional Office
New Hanover County Building Inspections
Page 7 of 7
..,.-:DWQ
USE ONLY---
D"ate Received
Fee Paid
Permit Number
Applicable Rules:
❑ Coastal SW -1995
❑ Coastal SW - 2008 ❑ Ph II - Post Construction
(select all that apply)
❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ M mt Plan:
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
I. GENERAL INFORMATION
1. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Cape Fear Dialvsis
2. Location of Project (street address):
3005 Enterprise Drive
City:Wilmington County:NewHanover Zip:28405
3. Directions to project (from nearest major intersection):
Travel approximate 800 if east of the intersection of INC 132 and SR 2206 (Northchase Pkwy SE) to SR 2683
Enterprise Drive. Site is on the left at the corner of SR 2683 and SR 2206
4. Latitude:34° 18' 16" N Longitude:77* 52' 30" W of the main entrance to the project.
II. PERMIT INFORMATION:
1. a. Specify whether project is (check one): ®New ❑Modification
b.If this application is being submitted as the result of a modification to an existing permit, list the existing
permit number , its issue date (if known) , and the status of
construction: ❑Not Started ❑Partially Completed* ❑ Completed* *provide a designer's certification
2. Specify the type of project (check one):
❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other
3. If this application is being submitted as the result of a previously returned application or a letter from DWQ
requesting a state stormwater management permit application, list the stormwater project number, if
assigned, and the previous name of the project, if different than currently
proposed,
4. a. Additional Project Requirements (check applicable blanks; information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑CAMA Major
❑NPDES Industrial Stormwater
®Sedimentation/Erosion Control: 2.9 ac of Disturbed Area
0404/401 Permit: Proposed Impacts
b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number,
issue date and the type of each permit:
OCT 2 9 2010
FormSWU-101 Version07Jun2010 Page Iof6
III. CONTACT INFORMATION
1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee,
designated government official, individual, etc. who owns the project):
Applicant/ Organization: RHGC Investments LLC
Signing Official & Title:Robert E. Langdon II . MA n a..
b.Contact information for person listed in item la above:
Street Address:223 Highway 70 East, Suite 100
City:Garner State:NC Zip:27529
Mailing Address (if applicable):same
State:
Phone: (919) ) 662-1001 Fax: (919 ) 662-1002
c. Please check the appropriate box. The applicant listed above is:
❑ The property owner (Skip to Contact Information, item 3a)
❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below)
❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and
2b below)
® Developer* (Complete Contact Information, item 2a and 2b below.)
2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the
person who owns the property that the project is located on):
Property Owner/Organization:Neuse River Corporation
Signing Official & Title:Stephen Hill, President
b. Contact information for person listed in item 2a above:
Street Address:1435 Highwav 258 North
City:Kinston State:NC Zip:28501
Mailing Address (if applicable):3320 Pauls Path Road
City:La Grange State:NC Zip:28551
Phone: (252 ) 523-9094 Fax: (252 ) 523-0908
3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other
person who can answer questions about the project:
Other Contact Person/
Signing Official &
b.Contact information for person listed in item 3a above:
Mailing Address:
City: State: Zip:
Form SWU-101 Version 07Jun2010 Page 2 of 7
Phone: (407 ) 588-2124 Fax:
Email:drew@hillgrayseven.com
4. Local jurisdiction for building permits: New Hanover County
Point of Contact: Phone #: (910 ) 798-7175
IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
one wet detention basin
2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
❑ Approval of a Site Specific Development Plan or PUD Approval Date:
❑ Valid Building Permit Issued Date:
❑ Other: Date:
b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with:
❑ Coastal SW -1995 ❑ Ph II - Post Construction
3. Stormwater runoff from this project drains to the Cape Fear River basin.
4. Total Property Area: 4.48 acres
5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area`:4.48 acres
Total project area shall be calculated to exclude thefollowing: the normal pool of inn ounded structures, the area
between the banks of streams and rivers, the area below the Normal High Water (NSW) line or Mean High Water
(MHW) line, and coastal wetlands landward from the NHW (or MHW) line. The resultant project area is used to
calculate overall percent built upon area (BUA). Non -coastal wetlands landward of the NHW (or MHW) line may
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 42.0 %
9. How many drainage areas does the project have?1 (For high density, carat I for each proposed engineered
stornnoater BMP. For low densihj and other projects, use 1 for the whole properhj area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below.
RECEIVED
OCT 2 9 2010
BY:
Form SWU-101 Version 07Jun2010 Page 3 of 7
Basin Information
Drainag a Area 1
Draina e Area _
Draina e Area _
Draina e Area _
Receiving Stream Name
Smith Creek
Stream Class *
C; Sw
Stream Index Number *
18-74-62
Total Drainage Area (so
126,222
On -site Drainage Area (so
126,222
Off -site Drainage Area (sf)
1 0
Pro osed Impervious Area** (so
81,927
% Im ervious Area** total
64.9
Impervious" Surface Aiea
Drainage Area 1
Drainage Area _
Drainage Area
Drainage Area
On -site Buildings/Lots (so
11,905
On -site Streets (so
0
On -site Parking (so
62,599
On -site Sidewalks (so
2,703
Other on -site (so
0
Future (so
4,720
Off -site (so
0
Existing BUA*** (so
0
Total (so:
1 81,927
Stream Class and Index Number can be determined at: http://portal.ncdenr.or vebAi) sAsulclassilications
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
***Report only that auount of existing BUA that will remain after development. Do not report any existing BUA that
is to be removed and which will be replaced by new BUA.
11. How was the off -site impervious area listed above determined? Provide documentation. Auto CAD
Projects in Union County: Contact DWQ Central Ojjice staff to check if the project is located within a Threatened &
Endangered Species watershed that may be subject to more stringent stormwater requirements as per NCAC 02B .0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms
must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded
from http://I)ortal.ticdenr.oriz/web/wq/ws/su/bmo-manual.
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. A detailed application instruction sheet and BMP
checklists are available fromhttp://portal.ncdennorg/web/wq/ws/su/statesw/forms dots. Thecomplete
application package should be submitted to the appropriate DWQ Office. (The appropriate office may be
found by locating project on the interactive online map at http://portal.ncdenr.org/web/wg/ws/su/maps.)
Please indicate that the following required information have been provided by initialing in the space provided
for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions
for each submitted application package from http://portal.ncdennorg/web/wg/ws/su/statesw/forms_docs.
Initials
1. Original and one copy of the Stormwater Management Permit Application Form.
2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants
Form. (if required as per Part VII below) RECEIVED
3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M
agreement(s) for each BMP. OCT 2 9 2010
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to
h!!p://www.envheII2.org/pages/onestopexi2ress.html for information on the ExpresslMram
and the associated fees. Contact the appropriate regional office Express Permit Coord natoi for
additional information and to schedule the required application meeting.)
Form SWU-101 Version 07Jun2010 Page 4 of 7
5. A detailed narrative (one to two pages) describing the stormwater treatment/managementfor
the project. This is required in addition to the brief summary provided in the Project
Information, item 1.
6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the
receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the Ih
mile radius on the map.
7. Sealed, signed and dated calculations.
8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including:
a. Development/Project name.
b. Engineer and firm.
c. Location map with named streets and NCSR numbers.
d. Legend.
e. North arrow.
I. Scale.
g. Revision number and dates.
h. Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal
waters, and any coastal wetlands landward of the MHW or NHW lines.
• Delineate the vegetated buffer landward from the normal pool elevation of impounded
structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters.
i. Dimensioned property/project boundary with bearings & distances.
j. Site Layout with all BUA identified and dimensioned.
k. Existing contours, proposed contours, spot elevations, finished floor elevations.
1. Details of roads, drainage features, collection systems, and stormwater control measures.
m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of qualifications and identify the person who
made the determination on the plans.
n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations.
o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffers (where required).
9. Copy of any applicable soils report with the associated SHWT elevations (Please identify
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs. Include an 8.5"xll" copy of the NRCS County Soils map with the
project area clearly delineated. For projects with infiltration BMPs, the report should also
include the soil type, expected infiltration rate, and the method of determining the infiltration rate.
(Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verifij the SHWT prior
to submittal, (910) 796-7378.)
10. A copy of the most current property deed. Deed book: 5462 Page No: 2442
11. For corporations and limited liability corporations (LLC): Provide documentation from the NC
Secretary of State or other official documentation, which supports the titles and positions held
by the persons listed in Contact Information, item la, 2a, and/or 3a per NCAC 2H.1003(e). The
corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State, otherwise the application will be returned.
hft://www.secretaly.state.nc.us/Corl2orations/CSearch.aspx CC`i
VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS OCR 2 9 2��0
For all subdivisions, outparcels, and future development, the appropriate property restrictions and protectiv
covenants are required to be recorded prior to the sale of any lot. If lot sizes vary signified�0yjor the pr poste ed
BUA allocations vary, a table listing each lot number, lot size, and the allowable built-upoA-1drWm—ust be provided
as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and
protective covenants forms can be downloaded from
htto://aortalncdenr.org/web/wg/ws/su/statesw/forms does. Download the latest versions for each submittal.
In the instances where the applicant is different than the property owner, it is the responsibility of the property
owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring
that the deed restrictions are recorded.
By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and
protective covenants for this project, if required, shall include all the items required in the permit and listed
on the forms available on the website, that the covenants will be binding on all parties and persons claiming
under them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the NC DWQ and that they will be recorded prior to the sale of any lot.
Form SWU-101 Version 07Jun2010 Page 5 of 7
'VIII. CONSULTANT INFORMATION AND AUTHORIZATION
Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a
consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as
addressing requests for additional information).
Consulting Engineer.Phillip G. Tripp, P.E.
Consulting Firm: Tripp Engineering, P.C.
Mailing Address:419 Chestnut Street
City: W ilmington
Phone: (910 ) 763-5100
Email: trippeng@ec.rr.com
State:NC Zip:28401
Fax: (910 1 763-5631
IX. PROPERTY OWNER AUTHORIZATION (if Cott tact Information, item 2 has been filled out, complete this
section)
I, (print or type nante of person listed in Contact Information, item 2a) Stephen Hill , certify that I
own the property identified in this permit application, and thus give permission to (print or hjpe name of person
listed in Contact Information, itent la) Robert E. Langdon 11 with (print or type name of organization listed in
Contact Information, item la) RHGC Investments, LLC to develop the project as currently proposed. A copy of
the lease agreement or pending property sales contract has been provided with the submittal, which indicates the
party responsible for the operation and maintenance of the stormwater system.
As the legal property owner 1 acknowledge, understand, and agree by my signature below, that if my designated
agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their
lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to
me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a
completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater treatment
facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid
permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including
the assessment of c•vi en (ties of u �a-
0 r ay, pursuant to NCGS 143-215.6.
Signature � n-1- a, X) /J^
t• a Notary Public for the State of /�BiC/il Lg<!, Azolzounty of
do hereby certify that le. personally appeared
before me this aVo ay of D 0/0 and acknoww edge the due execution of the application for
a stormwater permit. Witness my hand and official seal,
•H'
�"N •:
SEAL
My commission expires���tc �6.1
OGZ 2 9 2010
Form SWU-101 Version 07Jun2010 Page 6 of 7
A. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in Contact Information, item la) Robert E. Langdon It
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of the
applicable stormwater rules under 15A NCAC 2I-I .1000, SL 2006-246 (Ph. II - Post Construction) or SL 2008-211.
Signature: 4- 1Date:: 16'a6 �a�ir6
I, U ldt l t; 5 • / t oye- N,
a Notary Public for the State of o✓W Q .root County of
L" 01 r do hereby certify that R-DbtY+ 2. Lart kj z z personally appeared
before me this day of QCIObQ✓ �O10 and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal,
MOO
G OZggy _
= U
G 2
SEAL
My commission expires Pe e ern be-- q , a D 13
OCT 2 9 2010
Form SWU-101 Version 07Jun2010
Page 7 of 7
Name:
I Project Location: wA ('rnun" (rnn<,n<`hl,lml I Add info required (vesfno)) Date received: I
C/ Symbols for completing form: '✓'= Yes/OK; ' x'= No/Deficient; 'n/a' or
Rule(s) Subject (check all that apply):
❑ 1995 Coastal ❑ 2008 Coastal ❑ Phase II ❑ Universal
Paperwork:
O'�Check for $505 (must be no older than 6 months)
2�_Application form with correct/original signatures (original plus 1 copy). If Corporation or.LLC also:
Print the info from the NCSOS
o Either, 1.) The applicant is listed on the NCSOS with his/her correct title or, 2.) A notarized letter of
authorization has been provided: W---Supplements (1 original per BMP). BMP type(s): qD07 %Q-0
QUO&M with correct/original signatures (1 original per BMP, except level spreaders/filter strips and swales)
Deed restrictions (if outparcel or subdividing) (original plus 1 copy)
o Deed restriction template (signed and notarized) or
o Proposed Declaration of Covenants and Restrictions (signed and notarized)
LY" ils report identifying the SHWT
p� Supporting calculations, signed & sealed (if necessary)
13-1�eceiving stream classification: c4L,) , If SA or ORW also:
o SA: USGS topo map with the site, the receiving waters and the mile radius shown to scale.
o ORW: 575 ft of MHWL for Area of Environmental Concern and max BUA per rule.
I'LdKModifications: 1.) If built: Designer's Cert., 2.) If partially built: Partial Cert., 3.) If not built: No Cert. needed.
Development Type (check all that apply):
❑ Residential or CKommercial ❑ Deed restrictions match?
❑ Subdivision or ®'S°ingle Lot ❑ Deed restrictions match?
High Density or ❑ Low Density ❑ Deed restrictions match?
❑ Offsite project ❑ Redevelopment ❑ Modification ❑ Exempt
❑ NCG02 (bulkhead) ❑ NCG03 (clear/grade) ❑ NCG04 (linear) ,,/
Density: t� I `1
❑, EtUA calculations include common areas, clubhouse, sidewalks, etc.
❑/BUA %: 1AJ , Matches high/low density requirement for rule and receiving stream class.
Vo obvious math errors
High Density: Design storm correct for rule and receiving stream class.
Plans,�igned and sealed (2 sets):
p Two sets received LVLayout (with proposed BUA dimensions)
O-'�Grading ❑ Drainage area map (all HD systems 14 curb outlet swales)
Vicinity map @--rroject Boundaries FAKegend
W Wetlands:
o Delineated on plans s--"No wetlands onsite" on plans
❑ Details:
o Roads o Cul-de-sacs o Curbing o Sidewalk
o--BMPs/ Level spreaders/ Filter strips/ Curb outlet swales o Buildings (Apts or Condos)
Offsite Projects:
❑ Desi er's Certification has been submitted for the Offsite BMP receiving the runoff from the project.
❑ ed restrictions have been recorded and a copy submitted for the Offsite BMP permit.
Lot size has not changed from what was approved under the Master Plan.
❑ Correct lot number is referenced on the supplement form.
❑ Offsite system is in compliance with its permit, if known.
Infiltration Projects:
Soils report: SHWT, soil type, and expected infiltration rate are provided.
❑ DWQ has conducted a site visit? Date:
Wet Pon- : Permanent Pool Meets One of the Following:
Is located no lower than 6" below the estimated SHWT.
Is
groundwater is quantified and evaluated, AND Storage volume verified, AND Outlet evaluated for free
drainage to the receiving waters under SHWT conditions.
Decision (check one):
❑ Complete: Return file to admin (Jo Casmer) to log in. (Stamped in received date = BIMS date)
❑ Slightly incomplete: E-mail consultant, request information to be returned within one business day (24 hours after
request. Info requests on Friday, allow a return on the following business day). If info not returned, issue an
application return letter and give everything to admin. (Add info received date = BIMS date)
❑ Substantially incomplete: Issue an application return letter and give everything to admin.
TRII'P ENGINEERING, P.C.
0 419 Chestnut Street
Wilmington, North Carolina 28401
Phone: (910) 763-5100 • FAX: (910) 763-5631
October 29, 2010 REIM uu I 4 3 LU 10
NCDENR
Division of Water Quality
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Cape Fear Dialysis
New Hanover County, NC
TE 10027
Dear Linda:
Enclosed please find the following items for the above referenced project:
. 2 sets of plans
• $505 check
• Narrative
• Stormwater application — one original and one copy
• Wet Detention Basin Supplement
• Wet Detention Basin Operation and Maintenance Agreement
• 2 sets of calculations
• USGS map
• FEMA map
• Soils Report
• Copy of the Deed & Deed Restrictions
• Secretary of State information
Please review for approval and contact us with any questions, comments or if
you need additional information. Thank you.
Sincerely,
Tripp Engineering, P.C.
Zee
f/Galloway
ALG:dcb
RECEIVED
OCT 2 9 2010
BY:__
Enc.
I - 1
TE 10027
Stormwater Drainage System & Erosion Control
Narrative
Cape Fear Dialysis
3005 Enterprise Drive, Wilmington, NC
The Cape Fear Dialysis project is a proposed medical facility located on Enterprise Drive
in Wilmington, NC, New Hanover County, parcel ID # R02620-004-019. Cape Fear
Dialysis is owned by RHGC Investments, LLC. The entire site is approximately 4.48
acres of land, of which 2.0 acres is proposed for developed. The Cape Fear Dialysis
facility will be serviced by CFPUA for public water and sewer systems. No wetlands
exist on the project site.
RHGC Investments, LLC is proposing to build an 11,905 sf. medical facility building,
parking, sidewalks, landscape areas, a forebay and wet detention pond system. A future
building is included in the proposed impervious area as 4,720 sf. New impervious area
for this project is estimated to be 81,927 sf. (1.88 acres). After project completion, the
total amount of impervious area for this site will be 81,927 sf. or 42% of the entire site.
The estimated amount of disturbed area is 2.96 acres.
The site will have one drainage area consisting of 2.90 acres. No off -site runoff flows
onto the site and therefore, none will be routed to the proposed BMP. All outflow from
the drainage basin will drain to Smith Creek; classification C;Sw, Index No. 18-74-53, in
the Cape Fear River Basin. All built up areas (BUAs) will be collected and routed to a
wet detention pond BMP.
The drainage area will be treated by one wet detention pond sized to collect the first 1.5"
of runoff storm and 90% TSS removal. The wet detention pond was designed to meet or
exceed current State and County requirements and is designed for high density projects.
The pond will be sized to hold the required pre/post development volume difference for a
24-hr. 1-yr., 2-yr., 10-yr. and 25-yr. storm events. The pond has also been designed to
include a 16-foot emergency spillway to handle flow from a 100-yr. storm event.
Outflow from the wet detention pond will be to a proposed 18" RCP drainage pipe that
will tie into an existing outlet pipe in the adjacent west property. The SHGWT elevation
is approximately 46" below the existing ground elevation, which is approximately 0.5'
within the proposed normal pool elevation in the wet detention basin. Dj T
OCT 2 9 20to
1
TE 10027
Prior to clearing of the site, two construction entrances and temporary silt fence will be
installed. The removal of trees, vegetation, sidewalks, curbs and asphalt surfaces and
will occur. After clearing of the project site, the detention pond will be constructed to
include the proposed forebay, wet detention pond, and the temporary skimmer. The
parking areas and building locations will then be graded. Underground utilities,
including the stormwater drainage system will be installed and inlet protection put into
place. The proposed buildings will be constructed followed by paving, sidewalk
installation, final site grading, stabilization of the site and landscaping. Temporary
erosion control measures will remain in -place until such time as when areas are
stabilized. Permanent measures include permanent stands of grass and energy
dissipaters. Specific measures and directions to the contractor are noted on the plans.
Please refer to Sheet C2 for detail erosion control measures and construction sequence.
Pre -Construction Runoff. The runoff from the site before disturbance is found using a
coefficient of runoff "C" factor of 0.25, a 10-yr. rainfall intensity "I" of 9.43 in/hr and an
area of 2.90 acres.
Q pre = 0.25 x 9.43 x 2.90 = 6.84 cfs
Post -Construction Runoff. The runoff after construction is determined using a "C" = 0.71
and the same intensity and area as before.
Q post = 0.71 x 9.43 x 2.90 = 19.42 cfs
Summary
For this 2.90 ac. Drainage area, all on -site drainage will be collected by a stormwater
drainage system and routed to a forebay and wet detention pond. The pond has been
sized to retain the pre/post development runoff for the 24-hour 1-yr, 2-yr, l0-yr. and 25-
yr. storm events and to capture the first 1.5" of runoff from the new development. The
pond outlet structure was designed to release the required first 1.5" runoff volume over 2
days to 5 days as well as control the release of the various year storms to the existing
stormwater outlet pipe located on Enterprise Dr. A 16-foot emergency spillway was
added to the pond in order handle the drainage from a 100-yr. storm event. Temporary
erosion control measures include two gravel construction entrances, silt fence, inlet
protection and skimmer. Permanent erosion control measures include energy dissipaters
and established grass areas.
10/25/2010 Cape Fear Dialysis 10027
ALG Stormwater Pond Calculations
Total Drainacie Area
s2
. ft. acres
126,222 2.90
Im ervious Area
Land Use
sq. ft.
acres
Parking Area
62,599
1.44
Sidewalk
2,703
0.06
Proposed Building
11,905
0.27
Future Building
4,720
0.11
Total
81,927
1.88
Stormwater Calculations:
Time of Concentration
Hydraulic Length (L) = 300 ft.
change in Height (H) = 1 ft.
Tc = (L' /H)'0' / 128
5.67 min.
Flow for 1 year, 24 hour Storm (Q1)
QPRE _ (CPRE) x (11) x (Area)
3.66 cfs
QPosT = (CPosT) x (11) x (Area)
10.39 cfs
Detention Pond Design:
Main
Does Area Drain to SA Waters?
% impervious = 0.649
= 64.9%
CPRE - 0.25
CPosT = (% imp.)(.95)+(1% imp.)(.25)
0.71
11 = 5.05 in/hr
110= 7.81 in/hr
Flow for 10 year, 24 hour Storm (010)
CPRE _ (QPRE) X (110) x (Area)
5.66 cfs
QPosT = (CPosT) x (11o) x (Area)
16.07 cfs
State Surface Area Reauired at normal Dool:
Pond side slopes = 3 :1
Depth b/w Bot. of V.S. 8 5.00
Bot. Pool =
SA/DA = 0.0754
Chart for 90%TSS Removal for Wet
Detention Pond without Vegetative Filter)
Red SA = SA/DA x Total Drainage Area
9,517 sq. ft.
Provided SA - 9,521 sq. ft.
or Banx
36.Uu
14,275
38,180
64,396
ITop of Bank
36.00
3,985
10,187
16,53,
P. Pool
32.90
10,357
4,017
26,216
Temp. Pool
32.90
2,587
1,967
6,347
of V.S.
32.50
9,730
4,367
22,199
Perm. Pool
32.00
1,785
810
4,380
n. Pool
32.00
7,736
3,300
17,832
Bot. of V.S.
31.50
1,455
3,570
3,570
of V.S.
31.50
5,463
14,533
14,533
Bot. Pool
28.00
585
0
0
of Pool
26.50
350
0
0
Bottom SA = 350 sq. ft. /�lV
Bottom of VS SA= 5,463 sq. ft.
Permanent Pool SA = 7,736 sq, ft.
Vol. = [((PP SA + Bottom VS SA)/2) x (PP el. - Bottom VS el.)]
+ [((Bottom VS SA + Bottom Pool SA)/2) x (Bottom VS el. - Bottom Pool el.)]
Fore bay
Provided Normal Forebav Pond Volume
IEL= 16.0; Bottom of Pool SA= 585 sq. ft.
19.0; Permanent Pool SA = 1,785 sq. ft.
Vol. = [(P.P. SA + Bottom SA) / 2) x (P.P. el. - Bottom el.)
4,740 cu. ft. Depth= 4.00 ft
Required Forebay Volume 18%-22% required)
Vol. = 22% of Permanent Pool volume of Pond and Forebay
= 4,966 cu. ft.
Volume required to contain from design storm(ft0)= 10,006
Therefore, maximum sta a is between stages and cumulative volumes (main pond plus forebay):
Sta a
Cuml.
Volume
32.00
0
36.00
58,718
Total Provided PP Volume
= 22,572 cu.ft.
Actual % of Forebay Volume
= 21.00
using Interpolation to determine stage at volume = 10,006
Maximum Stage (feet) = 32.68 A
Therefore set Temporary Pool Elevation at or higher than Maximum Stage
p p��i��i
�p�•'FESSI.
PP Elev 32 -Cape Fear Dialysis DEN Wet Detention Suppl 8 Pond Calc 10-19-10 1 of 4
-'111111101'
Io•Z01•ID
10/25/2010 Cape Fear Dialysis 10027
ALG Stormwater Pond Calculations
Provided Main Pond Storage Volume:
Vol. _ [((PP SA + Top of VS SA)/2) x (Top of VS Elev. - PP Elev.)]
+ [((Top of VS SA+TP SA)/2) x (TP Elev. - Top of VS Elev.)]
8,384 cu. ft.
Provided Forebay Storage Volume
El. = 23.0; Permanent Pool SA = 1,785 sq. ft.
EI. = 24.90; Temp. Pool SA = 2,587 s . ft.
Vol. _ [((PP SA + Temp. Pool SA)/2) x (Temp. Pool Elev. - PP Elev.)]
= 1,967 cu. ft.
Total Provided Storage Volume
Vol. = 10,351 cu.ft.
State Volume Req. for Storage of first 1.5" runoff
Rv= .05+.009(%imp)
0.634
V= (Design rainfall)(Rv)(Drainage Area)
10,006 cu.ft,
Outlet Structure Design:
Flow for 2-day drawdown:
for Min. Volume required of stormwater,
Q = Min. Vol. Req. 1172,800 sec. (2-days)
0.058 cfs
Required Area of Pipe for 2-day drawdown:
A= Q/ [Cd x SQRT(2 x g x h)]
Cd = 0.6
9 = 32.2 ft./S2
h = (T.P. elev.- N.P. Elev.) /3
0.30 ft.
A = 0.0220 s . ft.
Diameter of Pipe for 2-day drawdown:
DIA. = SQRT[(A x 4) / pi]
0.1672 ft.
2.01 in.
Drawdown Calculation
Orifice Used= 2 in.
Drawdown rate= 0,058 cfs
Drawdown lime= 2.08 days
Outlet Structure Check:
Using a 4' x 4' Basin,
Perimeter(L = 16 ft.
Q = CIA
C = (% imp.)(.95) + (1 % imp.)(.25)
= 0.71
1 = 7.81 in. for a 10 yr. Storm
A = 2.90 Acres
16.07 cfs
Flow for 5-day drawdown:
for Min. Volume required of Stormwater,
Q = Temp. Pool Vol. / 432,000 sec. (5-days)
0.024 cfs
Required Area of Pipe for 5-day drawdown:
A= Q/[CdxSQRT(2xgxh)]
Cd = 0.6
9 = 32.2 ft./S2
h = (F.P. elev. - N.P. Elev.) 13
0.3 ft.
A = 0.0091 s . ft.
Diameter of Pipe for 5-day drawdown:
DIA. = SQRT[(A x 4) / pi]
= 0.1076 ft.
1.29 in.
Q= Cwx Lx H" -7
H = [Q / (Cw x L))W
Cw = 3
- 0.48 ft.
Peak elevation = flood pool elevation + H
33.38 ft.
PP Elev 32 -Cape Fear Dialysis DENR Wet Detention Suppl 8 Pond Calc 10-19-10 2 of 4
10/25/2010 Cape Fear Dialysis 10027
ALG Stormwater Pond Calculations
Storage Volume - Non SA Waters - Minimum Volume Required
Volume of Runoff = V = (3630) (Design Rainfall Depth) (Rv) (Drainage Area)
where
Rv = 0.05+0.0090A)
Rv = Runoff Coefficient = storm runoff (inches) / storm rainfall (inches)
IA = Impervious Fraction = Impervious portion of the drainage area (acres) / Drainage area (acres)
IA= 64.9 %
Rv= 0,634
Design Rainfall Depth =
1.50
in.
Drainage Area =
2.90
acres
Volume =
10,006
ft3
PP Elev 32 - Cape Fear Dialysis DENR Wet Detention Suppl & Pond Calc 10-19-10 3 of 4
10/25/2010 Cape Fear Dialysis 10027
ALG Stormwater Pond Calculations
Average Depth Calculated
Permanent Pool Volume (ft') 22,572.3
Permanent Pool Area (ft) 9,521.0
Option 1 - Average Depth (ft) 2.37
Bottom Vegetated Shelf Area (ft')
6918.0
Permanent Pool Area (ft)
9521.0
Bottom Pond Area (it')
350.0
Depth (ft)
5.0
Option 2 - Average Depth (ft)
3.06
Average Depth for use in Table (ft) 3.06
Round to nearest 0.5 for SA/DA (ft) ' $7�3 00:-
i
PP Elev 32 -Cape Fear Diatysis DENR Wet Detention Suppl 8 Pond Calc 10.19-10 4 0f 4
Table 1.1
85% TSS Removal
30 Foot Vegetated Filter Required
Average Depth
IMP%
3.0'
3.5'
4.0'
4.5'
5.0'
5.5'
6.0'
1 6.5'
7.0'
7.5'
10%
0.9
0.8
0.7
0.6
0.5
0.0
0.0
0.0
0.0
0.0
20%
1.7
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
30%
2.5
2.2
1.9
1.8
1.6
1.5
1.3
1.2
1.0
0.9
40%
3.4
3.0
2.6
2.4
2.1
1.9
1.6
1.4
1.1
1.0
50%
4.2
3.7
3.3
3.0
2.7
2.4
2.1
1.8
1.5
1.3
60%
5.0
4.5
3.8
3.5
3.2
2.9
2.6
2.3
2.0
1.6
70%1
6.0
1 5.2
1 4.5
1 4.1
1 3.7
1 3.3
1 2.9
2.5
1 2.1
1.8
80%
6.8
6.0
5.2
4.7
4.2
3.7
3.2
1 2.7
2.2
2.0
90%1
7.5
1 6.5
5.8
5.3
1 4.8
4.3
1 3.8
1 3.3
2.8
1.3
100%1
8.2
1 7.4
1 6.8
1 6.2
1 5.6
1 5.0
1 4.4
1 3.8
1 3.2
1 2.6
90% TSS Removal
No Vegetated Filter Required
Average Depth
IMP%
3.0'
3.5'
4.0'
4.5'
5.0'
5.5'
6.0'
6.5'
7.0'
7.5'
10%
1.3
1.0
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
20%
2.4
2.0
1.8
1.7
1.5
1.4
1.2
1.0
0.9
0.6
30%
3.5
3.0
2.7
2.5
2.2
1.9
1.6
1.3
1.1
0.8
40%
4.5
4.0
3.5
3.1
2.8
2.5
2.1
1.8
1.4
1.1
50%
5.6
5.0
4.3
3.9
3.5
3.1
2.7
2.3
1.9
1.5
60%
.0
6.0
5.3
4.8
4.3
3.9
3.4
2.9
2.4
1.9
70%
8.1
5.5
5.0
4.5
3.9
3.4
2.9
2.3
80%
9.4
6.4
5.7
5.2
4.6
4.0
3.42.8
90%
10.7
E7.OE
7.2
65
59
5.2
4.6
3.9100%
12.0
8.1
7.3
6.6
5.8
5.1
4.3
3.6
Note: The required surface area calculated from the tables is to be provided at the permanent pool elevation.
Hobbs, Upchurch and Associates, P.A.
PP Elev 32 - Cape Fear Dialysis DENR Wet Detention Suppt & Pond Calc 10-19-10.xls Myrtle Beach, South Carolina
10/25/2010 Cape Fear Dialysis 10027
ALG Skimmer & Orifice Calculations
Skimmer Size Calcs 10027
Volume = (1,800 cf/ac ` 2.9 ac)
Volume = 5,220 cf,
Pond
Determine Skimmer Size:
Volume Required = 5,220 cf.
Draw Down Time= 2 Days
2 Day Draw Down: 2.5 in skimmer From Chart: 12,468.00 cf. (11/07
Determine Orifice Size:
2 Day Factor: 2,540
2 Day Area of Orifice = Required Vol/ 2 Day Factor
2.06 sq. in.
2 Day Diameter of Orifice = (sgrt of (2 day orifice / Tr)) x 2
= 1.62 in
Use: 2.5 inch skimmer with 1.62 inch orifice
10/25/2010 Cape Fear Dialysis 10027
ALG 25 Year Storm Pipe and HGL Calculations
25 Year
LOCATION
AREA
RUNOFF
COEFF.
C
RAIN
INT.
I
in/hr
INCREMENTAL
FLOW
TOTAL
FLOW
PIPE DATA _
FROM
TO
SUB
TOTAL
(Acre)
TOTAL
Acre
O=CIA
(C.F.S.
REO'D
O=CIA
(C.F.S.
REO'D
TYPE
N
LENGTH
k
S%
SIZE
in
VEL.
(fps)
O
AVAIL.
cts)
Friction
Loss(Hf)
(k
Pond
Elev.
ft
Inlet WS
Elev.
k
Rim
Efev.
it
CI #8
CI #7
0.23
0.23
a80
10.64
1.96
1.96
RCP
0.013
63
1.00%
15
1.6
6.48
0.0398
33.00
33.42
35.20
CI #7
CI #1
0.33
0.56
0.80
10.64
2.81
4.77
RCP
0.013
128
0.30%
18
2.7
5.77
0.1928
33.00
33.38
35.20
CI #6
CI #5
0.41
0.41
0.80
10.64
3.49
3.49
RCP
0.013
106
0.30%
15
2.8
3.55
0.2130
33.00
34.92
35.20
CI #5
CI #4
0.19
0.60
0.80
10.64
1.62
5.11
RCP
0.013
97
0.30%
18
2.9
5.77
0A677
33.00
34.71
35.20
CI #4
CI #3
0.23
0.83
0.80
10.64
1.96
7.06
RCP
0.013
97
0.50 %
18
4.0
7.45
0.3210
33.00
34.54
35.20
CI #3
CI #2
0.25
1.08
0.80
10.64
2.13
9.19
RCP
0.013
152
1.00%
18
5.2
10.53
0.8517
33.00
34.22
35.20
CI #2
CI #1
0A0
1.18
0.80
10.64
0.85
10.04
RCP
0.013
115
0.30%
24
3.2
12.42
0.1825
33.00
33.37
35.20
CI*1
Pond
0.35
2.09
0.80
10.64
2.98
17.79
RCP
0.013
37
0.60%
24
5.7
17.57
0.1842
33.00
33.18
35.20
ASSUME FULL CAPACITY @ 1.73%
Pond
Required Zone 1 for a 24"
6'x8'x 18"
Energy Dissipater Sizing (WxLxH)
Minimum Provided Zone 1 for a 24"
6'x8'x 18"
&VOOS201 N10027-Cape Fear O 1013Yskula ms1f0027 250drah apes 1e25-10
June 23, 2009
Soils Engineering and Testing Services
Tripp Engineering, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Attention: Mr. Larry Knoerl
Reference: Seasonal High Watertable Estimate
Proposed Stormwater Pond Expansion
Britthaven Northchase
Wilmington, North Carolina
RFTS Job No. 479-09
Dear Mr. Knorel:
M
ocT 2 9 2010
RFTS is pleased to provide testing services during the design of the stormwater pond
expansion at the Britthaven development located in Northchase in Wilmington, North
Carolina.
DESCRIPTION OF ACTIVITIES AND FINDINGS
As requested, our staff visited the site on June 18, 2009 to estimate the seasonal high
watertable at one location as identified by you.
Seasonal High Watertable Estimates
A hand auger boring was advanced to a depth of approximately 6 feet below the ground
surface within the area of the proposed pond expansion. The encountered soils were
logged and visually classified by depth and a Munsell Soil Color Chart was used to
determine the hue, value, and chroma of the visually distinct soil layers. Our soil logs are
presented in Table I.
Location I
Soils encountered in our boring location consisted of relatively clean interbedded fine to
medium sands with a trace of silt (USCS Soil Group `SP-SM') throughout the entire
boring depth of 74 inches below the existing ground surface. Comparison of the soils to
the Mansell Chart suggests the presence of a zone of aerated soils indicative of their
occurring above the seasonal high water table extending to a depth approximately 40
inches below the existing ground surface. A measurement made 30 minutes after
angering indicated a depth to standing water in the borehole of 69 inches below the
existing ground surface.
RFTS, PLLC Committed to Responsive Service Office: 910-458-1377
1305 3A Carolina Beach Ave N
Carolina Beach. Nolh Carolina 28428 ?VU`tV.rftSp1lL.eoo1 Fax 910-458-5261
Tripp Engineering, P.C.
RFTS Job No. 479-09
CLOSURE
June 23, 2009
Page Two
This seasonal high water estimate should be reviewed by appropriate regulatory
authorities before finalizing the details of any civil design. Please find attached our field
data. If you have any questions after reviewing this letter, please do not hesitate to
contact us at your convenience.
Sincerely,
RFTS,PLLC
David L. Winstead
Field Operations Manager
DLW/dlw
Attachments
Table 1
Munsell Soil Classifications
Stormwater Pond Expansion
Britthaven at Northchase
Wilmington, North Carolina
RPTS Job No. 479-09
Loc
Soil Description
Hue
Value
Chroma
Depth
Comments
(in.)
1
Topsoil
-
-
0-6
-
Very Dark Grayish Brown fine to
1 OYR
3
2
6-12
-
medium SAND, trace of Silt
Very Dark Gray fine to medium
5YR
3
1
12-18
-
SAND, trace of Silt
Black fine to medium SAND,
5YR
2.5
1
18-32
-
trace of Silt
Dark Brown fine to medium
I OYR
3
3
3240
-
SAND
Black fine to Medium SAND,
5Y
2.5
2
4046
SHWT
trace of Silt
Dark Brown fine to medium
7.5YR
3
2
46-57
Slightly moist
SAND
Dark Yellowish Brown fine to
IOYR
3
4
57-74
H20@69"
medium SAND
10
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Legend
DRAWING PROVIDED BY TRIPP ENGINEERING, P.C. e APPROXIMATE TEST LOCATION
R SEASONAL HIGH WATER ESTIMATE FIGURE 1
POND EXPANSION DRAWING NOT TO SCALE Residential Foundation Testing Services, PLLC
BRITTHAVEN AT NORTHCHASE DATE: 6/23/09 Caro 8A Carolina Beach Ave N
WILMINGTON, NORTH CAROLINA SKETCH: DLW Carolina Beach, North Carolina 28428
Residential Foundation Fax:
9-458-526177
Testing Services, PLLC JOB NO. 479-09 REVIEW: SDK Fax: 910 458-5261
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North Carolina
Elaine F. Marshall DEPARTMENT or- THE
Secretary SECRETARY OF STATE
PO Box 29622 Raleigh. NC 2762"622 (919)807-2400
Date: 10/25/2010
Click here to:
View Document Filings I Sign Up for E-Notifications
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Corporation Names
Name
Name Type
NC NEUSE RIVER
LEGAL
CORPORATION
Business Corporation Information
SOSID:
0501069
Status:
Current -Active
Effective Date:
7/23/1999
Dissolution Date:
Annual Report Due Date:
Citizenship:
DOMESTIC
State of Inc.:
NC
Duration:
PERPETUAL
Registered Agent
Agent Name:
LINDBERG, ERIK
Office Address:
223 HWY 70 EAST
GARNER NC 27529
Mailing Address:
PO BOX 1010
GARNER NC 27529
Principal Office
Office Address:
1435 HWY 258 NORTH
KINSTON NC 28501
Mailing Address:
1435 HWY 258 NORTH
KINSTON NC 28501
Officers
Title: PRESIDENT
Name: STEPHEN HILL
Business Address: 3320 PAULS PATH ROAD
LA GRANGE NC 28551
Title: SECRETARY
Name: R HILL
Business Address: 6275 NORTH OCEAN BLVD
OCEAN BEACH FL 33435
Title: VICE PRESIDENT
Name: ROBERT HILL
North Carolina
Elaine F. Marshall DEPARTMENT OF THE
Secretary SECRETARYOFSTATE
PO Box 29622 Raleigh, NC 27626-0622 (919)807-2000
Date: 10/29/2010
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Corporation Names
Name Name Type
NC RHGC INVESTMENTS, LEGAL
LLC
Limited Liability Company Information
SOSID:
0898351
Status:
Current -Active
Effective Date:
2/14/2007
Dissolution Date:
Annual Report Due Date:
Citizenship:
DOMESTIC
State of Inc.:
NC
Duration:
PERPETUAL
Registered Agent
Agent Name: LANGDON, ROBERT E., II.
Office Address: 223 HWY 70 EAST, SUITE 100
GARNER NC 27529
Mailing Address: 223 HWY 70 EAST, SUITE 100
GARNER NC 27529
Principal Office
Office Address: 223 HWY 70 EAST, SUITE 100
GARNER NC 27529
Mailing Address: 223 HWY 70 EAST, SUITE 100
GARNER INC 27529
Officers
Title: MANAGER
Name:
Business Address: 2510 TRAILS END
KINSTON NC 28504
Title: MANAGER' -
Name: Y
Business Address: 6275 NORTH OCEAN BLVD�
OCEAN RIDGE FL 33435 OCR
Title: MANAGER /
Name: �L
Business Address: 3320 PAULS PATH ROAD Y�
LA GRANGE NC 28551
Title: MANAGER
Name:
Business Address: 223 HWY 70 EAST,STE. 100
GARNER NC 27529
This website is provided to the public as a part of the Secretary of Stale Knowledge Base (SOSKB) system. Version: 191
HGCINVE 0411512010 10:29 AM
LIMITED LIABILITY COMPANY
ANNUAL REPORT
NAME OF LIMITED LIABILITY COMPANY: RHGC INVESTMENTS, LLC
STATE OF INCORPORATION: NC
SECRETARY OF STATE L.L.C. 10 NUMBER: 0898351
NATURE OF BUSINESS: REAL ESTATE INVESTMENTS
REGISTERED AGENT: ROBERT E. LANGDON, II
SOSID: 0898351
Date Filed: 8/25/2010 4:42:00 PM
Elaine F. Marshall
North Carolina Secretary of State
CA201012303552
FEDERAL EMPLOYER 10 NUMBE Privacy Redaction
REGISTERED OFFICE MAILING ADDRESS: 223 HWY 70 EAST, SUITE 100
GARNER NC 27529
REGISTERED OFFICE STREET ADDRESS: 223 HWY 70 EAST, SUITE 100
GARNER NC 27529
WAKE
SIGNATURE OF THE NEW REGISTERED AGENT:
SIGNATURE CONSTITUTES CONSENT TO THE APPOINTMENT
PRINCIPAL OFFICE TELEPHONE NUMBER: 919 - 6 62 -10 01
PRINCIPAL OFFICE MAILING ADDRESS: 223 HIGHWAY 70 EAST, SUITE 100
GARNER NC 27529
PRINCIPAL OFFICE STREET ADDRESS: 223 HIGHWAY 70 EAST, SUITE 100
GARNER NC 27529
MANAGERSIMEMBERSIORGAN IZERS:
Name: ROBERT HILL, JR
Title: MANAGER
Name: ROBERT E . LANGDON II
Title: MANAGER
Name: STEPHEN B. HILL
Title: MANAGER
OCT 2 9 2010
Address: 7919 MASONBORO SOUND ROAD
City: WILMINGTON State: NC Zip: 28409
Address: 223 HWY 70 EAST, SUITE 100
City: GARNER State: NC Zip: 27529
Address: 3320 PAULS PATH ROAD
City: LA GRANGE State: NC zip 28551
CERTIFICATION OF ANNUAL REPORT MUST BE COMPLETED BY ALL LIMITED LIABILITY COMPANIES
& ze4dz - -
FORM MUST BE SIGNED BY A MANAGER/MEMBER DATE
TYPE OR FqIINT NAME TYPE OR kINT TITLE
ANNUAL REPORT FEE: $200 MAIL TO: Secretary of State 0 Corporations Division 0 Post Office Box 29525 0 Raleigh, NC 27626-0525
®5k
201000110001306
FOR REIISiROTION REG15rFR OF DEEDS
JENR[FEq N NRCNE ISN
NE R HRNavER CGDNLY NC
2010 JAN 15 02 20 38 PM
8K 5462 PG NNW FEE S22 00
NC REV STAMP $314 00
INSI NI M000M
NORTH CAROLINA
GENERAL WARRANTY DEED
Excise Tax 5314.00 (Purchase Price S157,000 UO) Recording Time, Book and Page
Tax Map No Parcel Identifier No R 02620-004-001-000
Mad after recording Io0FPb'st'bifice Box 0 0 Gamer, NC 27529
This Instrument was prepared by Erik Lindberg, Adomey at Law
Bntthaven, Inc
THIS DEED made this // 6' day of January, by and between
GRANTOR
GRANTEE
Neuse River Carpornuop 1435 Highway 258 North, Kinston, NC 28501
The designation Grantor and Grantee as used herein shall include said parties, their heirs, successors, and assigns,
and shall include singular, plural, masculine, feminine or neuter as required by context
WITNESSETH, that the Grantor, for a valuable conslderahon paid by the Grantee, the receipt of which is hereby
acknowledged, has and by these presents does grant, bargain, sell and convey unto the Grantee In fee simple, all
that certain lot or parcel of land and more particularly described as follows
BEING ALL of Lot G, Section 5 of NORTHCHASE PARK OF CO)IKERCE as the same is
shown on a map thereof recorded in Hap Book 33 at Page 389 of the New Hanover
County Registry, reference to which is hereby made for a more particular
description.
TOGETHER WITH and subject to the Declaration of Covenants recorded in Book 1491
at Page 1558 in the New Hanover County Registry.
All or a portion of the property heremabove described was acquired by Grantor by instrument recorded in Book
1807 'Page 1077 , New Hanover County Registry
A map showing the above described property is recorded in Plat Book , Page , and
referenced within this instrument
TO HAVE AND TO HOLD the aforesaid lot or parcel of land and all privileges and appurtenances thereto belonging
to the Grantee in fee simple
And the Grantor covenants with the Grantee, that Grantor Is seized of the premises In fee simple, has the right to
convey the same in fee simple, that title Is marketable and free and clear of all encumbrances, and that Grantor will
warrant and defend the title against the lawful claims of all persons whomsoever except for the exceptions
hereinafter stated
Title to the property heremabove described Is subject to the following exceptions
0c, 2 9 ZmO
IN WITNESS WHEREOF, the Grantor has hereunto set his hand and seal, or if corporate, has caused this
instrument to be signed in its corporate name by its duly authorized officer(s), the day and year first
above written.
Brihhaven Inc (SEAL)
(ENTITY M
By awe (SEAL)
Title President
By (SEAL)
(SEAL)
NORTH CAROLINA LAA*.( COUNTY
I, cerbfy that the following person(s) personally appeared before me this day, each acknowledging tome that he or
shR voluntarily signed the foregoing document for the purpose stated therein and in the capacity indicated
=d! .Li....f , Grantor(s) Witness my hand and official stamp or seal, this the //bR day of
My Co�OnTcxppe -7- y 3 /d �B17m
Notary Public
Print Notary Name �&Ve/ 1iii H JJknst
COUNTY
I, certify that the following person(s) personally appeared before me this day, each acknowledging to me that he or
she voluntarily signed the foregoing document for the purpose stated therein and in the capacity indicated
.Grantor(s) Witness my hand and official stamp or seal, this the _day of
My Commission Expires
Notary Public
Print Notary Name
NORTH CAROLINA COUNTY
I, certify that the following person(s) personally appeared before me this day, each acknowledging to me that he or
she voluntarily signed the foregoing document for the purpose staled therein and in the capacity indicated
,Grantor(s) Witness my hand and official stamp or seal, this theday of
My Commission Expires
Notary Public
Print Notary Name
\RlnIIFn%
JENNIFER H MACNEISH
REGISTER OF DEEDS, NEW HANOVER
216 NORTH SECOND STREET
WILMINGTON, NC 28401
...........aa.. a..u... u u a+re.. a...u. a. a.aa.aa..w..u.a a aa.. uu.0 o a.u..a....... u..as .............aa.....x.........
Filed For Registration, 0111512010 02.20:38 PM
Book. RE 5462 Page 2440-2442
Document No.: 2010001306
3 PGS $22 00
NC REAL ESTATE EXCISE TAX: $314.00
Recorder JOHNSON, CAROLYN
State of North Carolina, County of New Hanover
PLEASE RETAIN YELLOW TRAILER PAGE WITH ORIGINAL DOCUMENT.
*2010001306*
2010001306
CA201012303552
RHGCINVE 041151201010:29 AM
LIMITED LIABILITY COMPANY
ANNUAL REPORT
NAME OF LIMITED LIABILITY COMPANY: RHGC INVESTMENTS, LLC
STATE OF INCORPORATION: NC
SECRETARY OF STATE L.L.C. ID NUMBER: 0898351
NATURE OF BUSINESS: REAL ESTATE INVESTMENTS
REGISTERED AGENT: ROBERT E. LANGDON, II
SOSID: 0898351
Date Filed: 8/25/2010 4:42:00 PM
Elaine F. Marshall
North Carolina Secretary of State
CA201012303552
Privacy Redaction
FEDERAL EMPLOYER ID NUMBE
REGISTERED OFFICE MAILING ADDRESS: 223 HWY 70 EAST, SUITE 100
GARNER NC 27529
REGISTERED OFFICE STREET ADDRESS: 223 HWY 70 EAST, SUITE 100
GARNER NC 27529
WAKE
SIGNATURE OF THE NEW REGISTERED AGENT:
SIGNATURE CONSTITUTES CONSENT TO THE APPOINTMENT
PRINCIPAL OFFICE TELEPHONE NUMBER: 919-662-1001
PRINCIPAL OFFICE MAILING ADDRESS: 223 HIGHWAY 70 EAST, SUITE 100
GARNER NC 27529
PRINCIPAL OFFICE STREET ADDRESS: 223 HIGHWAY 70 EAST, SUITE 100
GARNER NC 27529
MANAGERS/MEMBERS/ORGANIZERS:
Name: ROBERT HILL, JR
Address:
7919 MASONBORO SOUND
ROAD
Title:
MANAGER
City:
WILMINGTON
State: NC Zip: 28409
Name:
ROBERT E . LANGDON II
Address:
223 HWY 70 EAST, SUITE 100
Title:
MANAGER
City:
GARNER
State: NC Zip: 27529
Name:
STEPHEN B. HILL
Address:
3320 PAULS PATH ROAD
Title:
MANAGER
City:
LA GRANGE
state: NC Zip 28551
CERTIFICATION OF ANNUAL REPORT MUST BE COMPLETED BY ALL LIMITED LIABILITY COMPANIES
TI
L�'11.yd�gr ts-0141 o
FORM MUST BE SIGNE BY A MANAGER/MEMBER DATE
/ 066yt E, ma -el -aye
TYPE OR INT NAME TYPE OR PRINT TITLE
ANNUAL REPORT FEE: $200 MAIL TO: Secretary of State 0 Corporations Division 0 Post Office Box 29525 0 Raleigh, NC 27626-0526