HomeMy WebLinkAboutSW6100208_CURRENT PERMIT_20100305STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW 6y�z
DOC TYPE
CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE'S--
YYYYMMDD
DWQ USE ONLY
Date Received Fee Paid
Permit Number
-/o
QU 20
Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW
(select all that apply) ❑ Non -Coastal SW- HQW/ORW Waters
❑ Other WQ M mt Plan:
- 2008 ❑ Ph It - Post Construction
❑ Universal Stormwater Management Plan
State of North Carolina
aepar[ment of Environment and Natural Resources
Division of Water Quality
S'Yt )YL AWA'TEW 1AANA1G'EMEN T i'ERMIA XYTL1CA'YU)N YAMIL i
This form maybe photocopied for use as an original
I. GENERAL INFORMATION rn
1. Project Name (subdivision, facility, or establishment name - should be consistent with pro jt name on
plans, specifications, letters, operation and maintenance agreements, etc.):
Township Developers LLC MAR U 5 ajo
2. Location of Project (street address): ®tf Q
94 Three Hunts Road
11'Prr&Mke, IVC caunity: Rah,?A?rr Zip: 283,72
3. Directions to project (from nearest major intersection):
From I-95 take NC 711 to Pembroke, NC. Take NC 711 and make a left onto Comtech Drive. Once on
Comtech Drive go approximately 0.6 miles to Three Hunts Road. The site is approximately 0.3 miles near
4. 1L;dLfLQel&NV1 3' V1.55' 1L Lungitnde'79" 1W 32.2T W 0 t'ne-main crtcrancY to t4ie prv�ect.
H. PERMIT INFORMATION:
f. a. Specify wnetner project is (cfteck onej: ONew QModu7catton
b.lf this application is being submitted as the result of a modification to an existing permit, list the existing
penrat number , its issue date (if known) and the status of
construction: ONot Started ❑Partially Completed* D 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
BWQ segv2st;M%a. Make Jiwmwiakes tet * i T' VKt r u:, kkv,
if assigned, and the previous name of the project, if different than currently
proposed,
4. a. Additti?ral Pmji?ct Ru faimffre�rr& (chec l• apple alnt Narrks,• irrformatiaa air requimd state perarits can In
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑CAMA Major
®Sedimentation/Erosion Control: 4.15 ac of Disturbed Area
ONPDES Industrial Stotmwater rJ404/401 Permit: Proposed Impacts
b.lf any of these permits have already been acquired please provide the Project Name, Project/Perna[
Number, issue date and the type of each permit: Township Developers, LLC ; Project ID: Robes-2010-015,
Issue Date: 2-2/10 , Erosion Control
in. 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: Township Developers, LLC
Signing Official & Title: lames Maynor - Owner/Partner
Ch CO.Wa tir&hTrr.at(,W fa ph-svrr LSteJ iu item 1a about
Street Address:763 Comtech Drive
City:Pembroke State: NC Zip: 28372
Mailing Address (ifapplicable):PO Box 1359
City:Pembroke State: NC Zip: 28372
Phone: (910 ) 521-8013 Fax: ( )
Email:
£. 4'ra32 £Sr�k.wr aF�'s ps.ate lr�x. £tre a}hi£arit 5i it£u abavc 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 ap,.reement and complete Contact Information, item 2a
and 2b below)
® Developer` (Complete Contact Information, item 2a and 2b below.)
2. a.Pfint Property fiwnef s name an6 title below, if you are the lessee, purcnaser or aeveloper. tihis is Yne
person who owns the property that the project is located on):
Property Owner/OrganizationNenture Properties Group, LLC
Signing Official & Title:lames Maynor
b.Contact information for person listed in item 2a above
9,rwi SiuuT£SP,.'6✓COh]1L£ail riYP'iJ£
City:Pembroke State: NC Zip: 28372
MailbIg Address (ifatmlicable.):PO 1359
City:Pembroke State.:NC Zip:28372
Phone: (910 ) 521-8103 Fax: (n/a )
3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other
tuna s�,rr oo•ba can ansm2 r ques&ons about the pfrwa.
Other Contact
Signing Official &
b.Contact information for person listed in item 3a above:
Phone: ( ) Fax:
9. Local jurisdiction for build ng permits:
Point of Contact: Phone #:
v.._.... mitt in, t_rr
IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
S ornrao atcr ae•rN he trr�terl too Wet Ik tcrrtrm Basire kx:ated to thr mxt2ree est of the srte. Rw Basin is
designed using 909' TSS Pollutant Removal Efficiency Table 10-3.
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 Dale:
n Valid Building Permit Issued Date:
❑ Other: Date:
b.ldentify the regulations) the project has been designed in accordance with:
17 ci •istatSW -1.9% Fl Ph A- Pasi.GamlLcucNrao.
3. Stormwater runoff from this project drains to the Lumber River basin.
4. Total Property Area: 6.27 acres
5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area+:6.27 acres
* Total project area shall be calculated to exclude the following the normal pool of impounded structures, the area
between the banks of streams and rivers, the area below the Normal High � Water (NHW) 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 MHIM line may
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 =
9. T >f rer ems, f dss i 3 f14, areas d yes Oka �vsiF.ct ha ie? Otve (� k� gh des ik j cysN, �sr, e.fM. p err �c�zd
engineered stormwater BMP. For low density and other projects, use 1 for the whole property area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are miue than fiuwr drainage areas in the priyed, attach an oddiliculaJ sheet >,vith the infLmnatitm fi\r each
area provided in the same format as below.
Basin Information
Drainage Area 1
Drainage Area _
Drainage Area _
Drainage Area
RMerd^r;�J:^.ali, ^tawre
Uw'bts Rs�ef
Stream Class
WS-IV, B;Sw,
HQW
AreamJndexNumber*
1447,1
Total Drainage Area (so
273,122
On -site Drainage Area (so
273,122
017G,jin Oval i1r(e ASea tsf�
Q
Proposed Impervious Area"
(sf)
191,185
Impervious** Surface Area Drainage Area 1 Drainage Area _ Drainage Area _ Drainage Area
On -site Buildings/Lots (so 45,000
On -site Streets (sf)
62,766
On -site Parking (so
75,419
On -site Sidewalks fsfl 11
8.000
w
� SrLiirir ♦.ruSS rfiru nu'1:Ci,ZuritL�Cuir ✓rL'uC�tihrliritr rfr. u��y./jncv C,Tr SrurC.h'C.A'Sii�iiSi,S}rlt,t%r rJ//dYUrrSJ�i�B.nrriTr
Form SWU-101 Version 07July2009 Page 3 of 6
Imgeroious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
** Report only that amount of existing BUA that will remain after development. Do not report any existing BUA that
.is 10 he,remaved.and which utill he renlared by neta.B 11A.
11. How was the off -site impervious area listed above determined? Provide documentation. N/A
Proieets in Union County: Contact DWQ Central Of ce staff to check ijthe project is located within a Threatened &
Endangered Species watershed that may be subject to more stringent stormwater requirements as per NCAC 02B .0600.
1 . SLPPLEWE.VT AND O&W FOR,41S
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
ilurr,'rftfifsuf'wipSenms.Yrt t.
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Mater Quality
(DWQ). A complete package includes all of the items listed below. A detailed application instruction sheet
and BMP checklists are available from http://h2o.enr.state.nc.us/su/bmp forms.htm. The complete
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 htLp://h2o.enr.state.nc.us/su/msi maps.htm.)
Please indicate that the following required information have been provided by initialing in the space provided
&Y each itenn. All atrg rral docuracyrts M UST fn sigfx-J, arrd irtiIiaku irr blue &&. Download the I. -test versions
for each submitted application package from http://h2o.enr.state.nc.us/su/bmp forms.htm.
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 VIl below)
3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M
aynmuterre(s) foredch BEER.
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer
htLp://www.envhelp.org/paiyes/onestol2express.htnil for information on the Express prop
and the associated fees. Contact the ayprogriate regjonal office Express Permit Coordinate
additional information and to schedule the required application meeting.)
5. A detailed narrative (one to two pages) describing the stormwater treatment/management
6. A USGS map identifvinv, the site location. If the receiving stream is reported as class SA of
receiving stream drains to class SA waters within'/z mile of the site boundary, include the ?
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.
r- Locajinn neap with named slrrets and NC -SR nnmberc
d. Legend.
e. North arrow.
L Scale.
g. Revision numoer 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 litre of tidal
waters, and any coastal wetlands landward of the MHW or NHW tines.
• 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.
GJI2 "wa, vit:h, •U'. RIiA.iAW--)JhP'd acv1 dL�:V2.4s.7lW.PP�.
k. Existing contours, proposed contours, spot elevations, finished floor elevations.
1. Details of roads, drainage features, collection systems, and stormwater control measures.
in. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of quafillcations and identify the person who
made the determination on the plans.
F^.rw, VW'T ""A N' Wiror, 27' hdfj PJJ: Ywgt4 S r
9.
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).
Crrlry t6 lcjrenl wilfi the asstxialed SSi'O S chc irn5 44 tease S'ucTtnSy wJ
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"Al" copy of the NRCS County Soils map with
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 verify the SHWT prior
to submittal, (910) 796-7378.) /
r
X cerlry eA t}ru-mrrti cmterhyrerpCnty dve& Dct-d blmk-.6A674 S'-am IZer: V6% ✓
For corporations and limited liability corporations (LLC): Provide documentation from the _
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 21-11003(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.
httn•//www.secretary.sLate.nc.us/Corporations/CSearch.asi2x
VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed
BUA allocations vary, a tabfe fisting each lot number, lot size, and the affowabfe buift-upon area must 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
htti2://h2o.enr.state.nc.us/su/bmi2 forms.htm#deed restrictions. 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 fora available on the website, that the covenants will be binding on all parties and persons claiming
under them, that they will rn 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.
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 EnMeer:lohnny W. Nobles
Can,vuhing Firm: L!� nnv T7r A c9,xles <i Asso gates
Mailing Address:PO Box 407 (416 N. Chestnut Street)
City:Lumberton State:NC Zip:28358
Phone: (910 ) 738-6875
Email:noblesassociates@nc.rr.com
Fax: (910 ) 738-8652
IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this
section)
I, (print or type name of person listed in Contact Information, item 2a) lames Maynor , certify that I
own the property identified in this permit application, and thus give permission to (print or type name of person
listed in Contact Information, item la) fames Maynor with (print or type name of organization listed in
Contact Information, item IN to develop the project as currently proposed. A copy
ofthe fease agreement or pending property safes contract has been provided with the submittaf, which indicates
the party responsible for the operation and maintenance of the stormwater system.
As the legal property owner I 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 civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6.
Date: '�//? h'A/D
a Notary Public for the State of C— County of
hr, h i SUh do hereby certify that -:(l OUD 1110 y' 17 L' Y personally appeared
before me this L day of -e b - 0l) and ackiiRwledge�the due executin of the application for
a stormwater permit. Witness my hand and official seal, i �1 L-t/'
SEAL
My commission
X. APPLICANT'S CERTIFICATION
-�y-ao1S
I, (print or type name of person listed in Contact Information, item 2) fames Maunor
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: LL a/rI4-J //'/Q ,y Date: 7 10
I, LJP UUPc3_d f� I V ��. a Notary
Public for the State of �) County of
RO b PSu'y, do hereby certify that UJ Cz me 5 7NO V oo I%' personally appeared
before me this II � day of and acknowledge the due execu�o'nof the application for
a stormwater permit. Witness my hand and official seal, ' ri r •��`J-c —c
My commission expires
Form SWU-101 Version 07Ju1y2009 Page 6 of 6
MCER
Noilh Carolina DeFdartrn nt of Environment and Natural Resources
Division of Water Qualitv
3e,�eriy Eaves Perdue Coleen H. Sullins
' oCvernor Director
March 19, 2010
Township Developers. LLC
Attn: James Maynor
PO Box 1359
Pembroke, NC 28372
Subject: Stormwater Management Permit SW6100208
Township Developers, LLC
High Density Pro
ject
Robeson County
Dear Mr. Maynor:
Dee FreBn'2
The Fayetteville Regional Office of the Division of Water Quality received a complete Stormwater
Management Permit Application for the Township Developers, LLC project on February 22, 2010.
Staff review of the plans and specifications along with additional information received on March 5, 2010
and March 16, 2010 has determined that the project, as proposed, will comply with the Stormwater
Regulations set forth in Title 15A NCAC 211 .1000. Therefore, we are forwarding herewith Stormwater
Management Permit SW6100208 dated March 19, 2010 for construction of the subject project.
This permit shall be effective from the date of issuance until March 18, 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 adjudicatory hearing upon written request within thirty (30) calendar days following receipt
of this permit. This request must be in the form of a written petition, conforming to Chapter 15013 of the
North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer
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 Mike
Lawyer or myself at (910) 433-3300.
Sincerely/,^ f %
-bL
Belinda S. Henson
Regional Supervisor
Surface Water Protection Section
BSH: ML/nil
cc: nathan E. Locklear,'PE-LL&J Consulting Engineers (via e-mail)
ZJohnny W. Nobles, PLS-Johnny W. Nobles & Associates (via e-mail)
Robeson County Zoning & Planning Department, PO Box 1284, Lumberton, NC 28359
FRO -Surface Water Protection
DWQ Central Files
t V m, U, w "Amef S i1' V ah arulin a 93301
9 t aDC, I F t 9 0 for ^7r1 „t ..,, -� .i 1 i77-023-8743
qt: pi;t: w imcwaterquaity.orq
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STATE OE NORTH CAROLINA
DEPARTMENT OE ENVIRONNIENT AND NATURAL 12ESOURCLS
DIVISION OE WATER QUALITY
STATE STORNINVATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPNIENT
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 1-IEREBY GRANTED TO
James Hoynor & Township Developers, LLC
Township Developers, LLC
Robeson County
FOR THL'
construction, operation and maintenance of a wet detention pond in compliance with the provisions of
15A NCAC 21-1 .1000 (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 March 18, 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 1.6 of this permit. The stormwater control has been designed to handle the
runoff from 191,185 square leet of impervious area.
3. The tract will be limited to the amount of built -upon area as indicated in Section 1.6 of this
permit, and per approved plans.
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.
5. The runoff from all built -upon area within the permitted drainage area of this project must be
directed into the permitted stormwater control system.
6. The following design criteria have been provided in the wet detention pond and must be
maintained at design condition:
a. Drainage Area, acres: 6.27
Ofsite, ft2: 273,122
Offsite, ft2: 0
b. Total hnpervious Surfaces. 112:
Buildings, ftz
ft:
Street, -:
Parking, ft2:
Sidewalks, ft`:
C. Design Storm, inches:
d. Pond Depth, feet:
C. TSS removal efficiency:
f. Permanent Pool Elevation,FMSL:
g. Permanent Pool Surface Area. ft2:
h. Permitted Storage Volume, ft3:
1. Temporary Storage Elevation, FMSL
j. ControllingOrifce:
k. Permitted Forebay Volume, it-:
1. Maximum Fountain Horsepower:
In. Receiving Stream/River Basin:
n. Stream Index Number:
o. Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
4.
191:185
36,000
71,766
75,419
8.000
1.0
5.25 (3.76 average)
90%
152.00
9,120
34,402 (permanent)/15,600 (temporary)
153.50
2.0" O pipe
6,880
1/8 HP
Lumber River/Lumber
14-(7)
"WS-IV,B;Sw,HQW"
The stormwater management system shall be constructed in its entirely; 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 limes, 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 revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and speci ,Citations.
f. Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch
basins and piping.
g. 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 ofDWQ. The records will indicate the date, activity, name of person performing the
work and what actions were taken.
Decorative spray fountains will be allowed in the stormwater treatment system, subject to the
following criteria:
a. The fountain nutst draw its water from less than 2' below the permanent pool surface.
b. Separated units, where the nozzle, pump and intake are connected by tubing may be used
only if they draw water from the surface in the deepest part of the pond.
C. The falling water from the fountain must be centered in the pond, away from the
shoreline.
d. The maximum horsepower for the fountain's pump is based on the permanent pool
volume. The maximum horsepower for a fountain in this pond is 1/8 horsepower.
6. The facilities shall be constructed as shown on the approved plans. 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.
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.
If the stormwater system is 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. Access to the stormwater facilities shall be maintained via appropriate easements at all times.
10. 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 subdivision, acquisition, lease 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.
11. The permittee shall submit final site layout and grading plans for any permitted future areas
shown on the approved plans, prior to construction.
12. A copy of the approved plans and specifications shall be maintained on file by the Permittee for
a minimum of ten years from the (late of the completion of construction.
13. 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 lime 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.
111. GENERAL CONDITIONS
This permit is not transferable 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 formal permit transfer
request to the Division of Water Quality, accompanied by a completed name/ownership change
form, documentation from the parties involved, and other supporting materials as may be
appropriate. The approval of this request will be considered on its merits and may or niay not be
approved. The permittee is responsible for compliance with all permit conditions Until such time
as the Division approves the transfer request.
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.
The issuance ofthis permit does not preclude the Permittce from complying with any and all
statutes, rules. regulations. or ordinances, which may be imposed by other government agencies
(local, state, and federal) havingjurisdiction.
4. 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.
5. The permittee grants DWQ Staff permission to enter the property during normal business hours
for the purpose of inspecting all components of the permitted stormwater management facility.
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. Unless specified elsewhere, permanent seeding requirements for the stormwater control must
follow the guidelines established in the North Carolina Erosion and Sediment Control Ptamiing
and Design Manual.
Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit.
The permittee shall notify the Division any name, ownership or mailing address changes within
30 calendar days.
Permit issued this the nineteenth day of March 2010.
NORTR CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
-&L ak) -4• wo/12�
Coleen I -I. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Stormwater Management Permit SW6100208
Township Developers, LLC
Stormwater Management Permit S W6 t 00208
Robeson County
Designer's Certification
r
Page I of
1, as a duly registered in the State of
North Carolina, having been authorized to observe (periodically/ weekly/ fill 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 a part of this Certification.
Noted deviations from approved plans and specification:
SEAL
Signature
Registration Number
Date
Certification Requirements:
Page 2 of 2
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/bypass 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/bypass 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 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 forcbay.
15. The required system dimensions arc provided per the approved plans.
cc: NCDLNR-DWQ Regional Office
Permit No. SW 6 /0 20 9+
(to be provded by DWO)
Of wA LL
ARM Q2 OG
• CDM >
STO iMWATER MANAGE1@4T PL78FORM
APPLICATION FORo
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information.
LrfnMN-Y b'YVVRWATMM
Pmjed rear, 11mee Hares Rost
Cadad Persian Johvry Nd�
Roe no8a 910-7 75
Dan 211tyd1I0
Drasngeseat aroma One
II. DESIGN INFORMATION
Site Characteristics
Drainage area
Impervious area, past -development
%impervious
Design rainfall depth
swap vaYmc Hava-m WatNs
Minamen volumes mq*W
Slamigeveh®e SAW&=
15*rureOvoaree
Pradevelopm 11-W. 244o ruroe
Pal-devdopood 1-yr. 24 trwall
Mrnrevn vmme reQ®ed
Volume provided
Pak Rea CaktdaboOs
Istieprebost mrt0 doetyr24hslormpek11wria*e:17
fir 24br n' I deo
Ra6mrM Q pedad�red
RAC. pal4 mioprod
Reirdailidatsky. fir, 244v snrro
Pre -development 1-yr, 24-hr peak fim
Post -development 1-yr, 24-hr peak Dow
PrelPosl 1-yr, 24-hr peak flora control
Elevations
TempcaarY pod elevation .
Panawne poddr.+eGon
SHW elevaam(aWtoc at0eparr. pod drvdmur)
Top d 109 vet slid deeper
tlaltom di0avegdrdedshdf deramon
Sedrreddeaed, lop derd;5m (bo®mn dptrtd)
Sedrnad storage provided
6 gee adINurai vol u m stored above De s aOBaeq®ed tarp- POW
9ua6m dhtopdteadi tuelvahoe
273,122 ft
215.766 f?
79.00 %
1.0 in
17.402 0' OK
17,598 as OK vuhoepraidalseQrdbQer evoasdvahroe requied
We
Its
a'
Its
to
Y (Yam
30 in
0.35 (urdes)
084 (udess)
0.13 Mar OK
0.27 ft'/sec
0.66 (t'/sec
0.39 ft'/sec
153.50 aid
W-00 and
152.0D oral
I" amt
151-SD had
14681md
M25 prig
1.00 a
N (Yam
ntl
Form SW401-Wet Detention Basin-Rev.19-9117109 Parts I, a II. Design Summery, Page 1 of 2
Permit No.5 w /L C(/(J lam/ W'
(to be provided by D WD)
II. DESIGN INFORMATION
Surface Areas
Area, temporary pod
13,125 0
Area REQUIRED, permanent pod
10,242 fe
SAIDA Fall)
3.75 Odes)
Area PROVE. Pemarad Pod. A�.saa
10.325 f?
OK
Area, hntlum of 10tvegshe4A,,s,,,
8,6 0
Area, sed,hhedriwa4 top elerSau (balc n dpon4 Aaron
Z450
Vabm
vohmG terrpaaY Pool
17,588 tv
M
vabnhe peroraa6 Pad V..,_P'
39,99B I?
Vahm bobay(am dA>nbalrs dnaethan meluebay)
8,000 tv
Forebey %of permanent pool volume
20.0% %
OK
SAIDA Table Data
Design TSS mood
90 %
Coastal SAIDA Table Llsed7
N (Yorm
YuvdenvFi drmd SAIDA Table Osed7
Y (Yor N)
SAM raio
3.75 (use)
AveagedepBr(usedit SAMIlati X
Calwlabon option 1 used? (See Figure 10-2h)
N (Y or N)
Volume, permanent pod, Vr,,,,,_PW
39,998 t'
Area poridA prsnranad pod Ap�
10.325 ff
Meraged*M admialad
It
Need 32 man.
Average depth used as SACk der Plond b noaed052)
A
CaladaGar option 2 wed2 Pan Figure 10-2b)
Y (YaN)
Arm Prodded, peonanedpod A�,m
10,325 f?
Area, tdtorn d 10truagud - shell Ae
8.575 tlz
Area, sediment cleanout, lop elevation (bottom of pond), Awu d
2,450 fl�
9epOn'(uEsaaebllvbabom of 10.1slrBandlpdsedin"
5251
Average dqM ugloiaeed
3.83 It
OK
Average depth used in SAIDA, d. OkWdbrheaest051f)
4.00
OK
Orardomn CaladaRons
Dramufoan through nitre?
Diareterdmill (daerie)
Area of nrdoe (drharaiaia)
Graffiderdoll I ge(Cu)
Driving head OU
Draodw acmgboath
VIA* type
Codiriedof' I go(G)
Length dalearp
Driving head"
liedevdoprre t t-r, 244w peak Mint
Plaf,developnrerd 1-yr, 244r peak Dow
Stange whore dsdrage rate Mwoujhdischarge a seamen)
Storagemimeui-mv- lane
Addt'mal6darmamon
Vegelalled sidle dopes
slaillfrilape,
VegeNted shetandln
IahgA dfh>openu bath rffin
Lao to to t h ratio
Trash had for vial= a vole?
Fieebm prral-.
vegiahfd Met PaidaR
R®adad dr- 9 easetrha.p.... I t
Capag all Root at ubnate buBdad?
Drain lRacha®R for mainle Bste or
Form SW401-Wet Detention Basin -Rev a-9/1DD9
Y
(YaN)
4.00 in
0.60 (codes)
1250
N
(YaN)
WA
(uiles)
NIA
(ra11111155)
WA
It
WA
a
0.27 ehm
0.10 felsec
206 dqs
10.02
3 :1
23 :1
Y
(YQN)
Y4
N
(YvN)
Y
(YaN)
Y
(Yorto
Skim COD
OK *errs down in 25 dais.
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
Pans I. a II. Design Summery, Page 2 of 2
Permit No. iN lv071091
(to be provided by DWQ)
III. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
CA
i_
1r
Pagel Plan
Sheet No.
)
1l
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- OH -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
- Pretreatment system,
- High Flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
2. Partial plan (1" = 30' or larger) and details for the wet detention basin shoving:
- Outlet structure with trash rack or similar,
Maintenance access,
Permanent pool dimensions,
Forebay and main pond with hardened emergency spillway,
Basin cross-section,
Vegetation specification for planting shelf, and
Filter strip.
3. Section view of the wet detention basin (1" = 20' or larger) shoving:
Side slopes, 3:1 or lower,
Pretreatment and treatment areas, and
Inlet and outlet structures.
4: If the basin is used for sediment and erosion control during construction, dean out of the basin is specified
on the plans prior to use as a wet detention basin.
5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay,
to verity volume provided.
6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized.
The supporting calculations.
8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
9. A copy of the deed restrictions (if required).
10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
Form SW401-Wet Detention Basin-Rev.8-9/17/09 Part If. Required Items Checklist, Page 1 of 1
Supporting Calculations
(prepared by LL&J, PLLQ
Township Developers (Three Hunts Road)
Pembroke, NC (Robeson County)
Peak Flow•. Q = CIA
Area =
1=
C (Pre Developed) _
Pre Developed Runoff =
2/18/2010
6.27 acres
273,122 cu ft
0.13 in/hr
0.35 (Unimproved Arcs)
0.27 cfs (lyr/24 hr Storm)
Surface Description Area (acres) Runoff
Coef.
Impervious Area 5.00 x 0.95 = 4.75
Crass/Vegetation
Area 137 x 0.40 = 0.51
Sum = 6.27 Sum = 5.26
C(Post Developed) = Average Runoff Coef = 0.84
Post Developed Runoff = 0.66 cfs (lyr/24 hr Storm)
Storage Volume: Rv = 0.05 + 0.9*1,1 1^= 0.79
(Non -SA Waters) = 0.76
RD = 1.00 in
V=3630*RD*Rv*A
17,402 cu It (minimum)
WET BASIN
PARAMETERS: Basin Length =
175
ft
Width ft
Elevation (ft)
Temporary Pool Top =
75.00
153.50
Temp. Pool Bottom =
59.00
152.00
Permanent Pool Top =
59.00
152.00 (SI-IWI)
Bottom Veg.. Shelf =
49.00
151.50
Top Sedim.. Cleanout =
17.50
146.25
Bottom Sedim.. Cleanout =
11.50
145.25
Temp. Pool Area =
13,125
sqft
Temp. Storage Volume =
17,588
tuft O.K.
Permanent Pool Vol. =
39,998
cuh
(Option 2) Average Depth (d,*) _ 10.25
* (1 + Abo� ,hdf/A,,))+((*\�, .hei,+Abo,�.d/2) *(Depth/A�,3hdfA
Am..h.v=
8,575
sqft
A'.'. -' ,A =
10,325
sqft O.K., Min = 10,242 sqft
Ate, d =
2,450
sqft
Depth =
5.25
ft
d,,, =
3.83
ft
d,,, Used=
4.00
ft
% Impervious =
79
SA/DA Ratio =
3.75
Per'1'able 10-3 (Pedmont, 90%)
PO Box 3119 (806 Union Chapel Rd), Pembroke, NC 28372
(910)309-1765
High Density Commercial Subdivisions
Deed Restrictions & Protective Convenances
In accordance with Title 15 NCAC 2H.1000 and S.L. 2006-246, the Management Regulations, deed
restrictions and protective covenants are required for High Density Commercial Subdivisions where
lots will be subdivided and sold and runoff will be treated in an engineered stormwater control facility.
Deed restrictions and protective covenants are necessary to ensure that the development maintains a
built -upon area consistent with the design criteria used to size the stormwater control facility.
1, � (\e5 aq w , acknowledge, affirm and agree by my signature below, that
I will cause the followino deed restrictions and covenants to be recorded prior to the sale of any lot
within the project known as
The following covenants are intended to ensure ongoing compliance with State Stormwater
Management Permit Number as issued by the Division of Water Quality
under the Stormwater Management Regulations.
2. The State of North Carolina is made a beneficiary of these covenants to the extent necessary to
maintain compliance with the stormwater management permit.
3. These covenants are to run with the land and be binding on all persons and parties claiming
under them.
4. The covenants pertaining to stormwater may not be altered or rescinded without the express 0
written consent of the State of North Carolina, Division of Water Quality. M m
® W Z
5. Alteration of the drainage as shown on the approved plan may not take place withoulzru
concurrence of the Division of Water Quality.10
N j
6. The maximum allowable built -upon area per lot is 216.799 square feet. c
*Note: If the BUA per lot varies, please substitute the following statement for the one above andD
provide a complete listing of the proposed BUA for each lot:
The maximum built -upon area per lot, in square feet, is as listed below:
Lot # BUA Lot # BUA Lot # BUA Lot # BUA
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.
7. All runoff from the built -upon areas on the lot must drain into the permitted system. This may be
accomplished through a variety of means including roof drain gutters which drain to the street,
grading the lot to drain toward the street, or grading perimeter swales to collect the lot runoff
and directing them into a component of the stormwater collection system. Lots that will naturally
drain into the system are not required to provide these additional measures.
a. The owner of each lot, whose ownership is not retained by the permittee, is required to submit a
separate stormwater permit application to the Division of Water Quality and receive a permit
prior to construction.
9. The project and each lot will maintain a 30** foot wide vegetated buffer between all impervious
areas and surface waters.
**50 foot for projects located in the 20 coastal counties.
Form DRPC-1 Rev.2 05Nov2009 Page i of 2
High Density Commercial Subdivisions
Deed Restrictions & Protective Convenances
ve
QIIV7 o/D
a Notary Public in the
State of 1 C. , County of -Ro re n
do hereby certify that J CvMt'O -MC woy personally appeared
before me this the r day of F 20 10 , and ackno
the due execution of the foregoing instrument. Witness my hand and official seal, ; 4
SEAL•.
Signature
My Commission expires
!-a8=ao /S
Form DRPC-1 Rev.2 05Nov2009 Page 2 of 2
Permit Number: 5t16 604?0a
(to be provided by DWQ)
Drainage Area Number:
Wet Detention 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.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
❑ does ® does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
— Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
— If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
— Once a year, a dam safety expert should inspect the.embankment.
After the wet detention pond is established, it should be inspected once a month 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 should be kept in a known set
location and must 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 wet
Areas of bare soil and/or
Regrade the soil if necessary to
detention 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 -
Vegetation is too short or too
Mauttaut vegetation at a height of
long-
approxhuately sic inches.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 1 of 4
Permit Number.-�51✓6(�M'?(26�zs'
(to be provided by DWQ)
Drainage Area Number:
BMIP element
Potential problema
How I will remediate the problem
The inlet devices pipe or
The pipe is clogged.
Unclog the pipe- Dispose of the
swale
sediment off -site
The pipe is cracked or
Replace the pipe.
otherwise dams
Erosion is occurring in the
Regrade the Swale if necessary to
swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erasion.
The forebay
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design depth for
possible. Remove the sediment and
sediment storage.
dispose of it in a location where it
will not cause impacts to streams or
the BMIP.
Erosion has occurred.
Provide additional erasion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The vegetated shelf
Best professional practices
Prune according to best professional
show that pruning is needed
practices
to maintain optimal plant
health
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
ebc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is
Weeds are present
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
"
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design sediment
possible. Remove the sediment and
storage depth
dispose of it in a location where it
will not cause impacts to streams or
the BIvIP.
Algal growth covers over
Consult a professional to remove
50% of the area.
and control the algal growth -
Cattails, phragmiles or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray).
the basin surface.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 2 of 4
Permit Number:o1�2e8�
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate the problem
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs re ' . if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or ireplace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet
the 401 Oversight Unit at 919-733-
1786.
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 5.75 feet in the main pond, the
sediment shall be removed.
When the permanent pool depth reads 5.75 feet in the forebay, the sediment
shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 152.00
Sediment Removal Ek 14625 1 Pe&anenX Pool
------ v - Volumed Sediment Removal Elevation 146.25 Vol
Bottom Elevati 14525 ft Min.\----- ----------------------- ----------------
---
Sediment Bottom Elevation 14525 =1-ft
Storage Sed
Storage
FOREBAY
MAIN POND
Form SW401-Wet Detention Basin O&M-Rev.4 Page 3 of 4
permit Number. S�I�Q�G'✓
(to be provided by DIVQ)
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:Three Hunts Road (Township Development)
BMP drainage area it
Print name:James Maynor
Title:Owner/Partner
Address:763 Comtech Drive. Pembroke. NC 28372
Phonc:(910-521-8013
Signature: p
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.
1, 'cle—L m4, Al y-cW `/ , a Notary Public for the State of
A) County of A) oy✓ do hereby certify that
�CVntQa %}�4tx/YI0V personally appeared before me this ' 7
day of �eh �Ia , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
SEAL
My commission expires '_a V—a 6 /s
Form SW401-Wet Detention Basin O&M-Rev.4 page 4 of 4
D GEOSCIENCES, INC.
Via facsimile and mail
910.521.4072
Metcon, Inc
PO Box 1149
Pembroke, North Carolina 28372
Attention: Mr. Greg Hunt
Subject: Subsurface Exploration Services Report
New Retention Pond at COMtech Professional Center
COMtech Business Park
Pembroke, North Carolina
Project No. 09FCS-2489
Document No. 09F-2216
Dear Mr. Hunt:
Geotechnical, Environmental
and Construction Engineering
October 13, 2009
As requested, a representative of Pyramid Geosciences, Inc. visited the above -referenced project
site on various dates in October 2009 to evaluate soil and ground -water conditions to assist in
design of the new retention pond.
The purpose of our subsurface explorations was to evaluate soil and ground -water conditions to
estimate the site -specific Seasonal High Water Level (SHWL) and the current depth to ground-
water. This report presents the results of our evaluation.
Site Location and Description
The location of the new retention pond is planned near the northwest corner of the COMtech
Professional Center property as shown on the attached field sketch.
The site topography is generally flat and level with sporadic small mounds of fill material placed
during previous construction activities. The site is presently undeveloped and covered by tall
grass and weeds. A 10-ft. deep drainage ditch currently extends along the northern and western
edges of the property.
The specific location and dimensions of the new pond are presently unknown; however, based on
our discussions with the contractor, it is understood that the new pond will be located less 50 ft.
from the drainage ditch.
P.O. Box 9367, Fayetteville, North Carolina 28311
Telephone 910.488.1629
FAX 910.488,9450
Subsurface Exploration Services Report
New Retention Pond at COMtech Professional Center
COMtech Business Park
Pembroke, North Carolina
Soil Survey of Robeson County, North Carolina
Pyramid Geosciences, Inc.
Project No. 09FCS-2489
Document No. 0917-2216
October 13, 2009
Page 2
According to the United States Department of Agriculture (USDA) Soil Conservation Service
(SCS) Soil Survey of Robeson County, North Carolina (issued January 1978), site soils are
associated with the Rains Series consisting of nearly level poorly -drained soils on uplands.
Rains soils are low in natural fertility and organic matter content. Permeability is moderate, the
available water capacity is medium, and the shrink -swell potential is low. The seasonal high
water table is at or near the surface from November through April. The soils are ponded for very
brief periods from November through February. A seasonal high water table and ponding are the
main limitations in the use and management of this soil.
Subsurface Explorations
Soil and ground -water conditions at the planned pond location were evaluated by excavating a
shallow test pit to a depth of approximately 2.0 ft. below existing grade and advancing a hand
auger boring to a depth of 12.0 below the ground surface.
Soil Descriptions
Descriptions of soils encountered in the hand auger boring are provided below.
Depth
Description
0 to 18 inches
Dark brown to black sandy loam with distinct gray and yellow mottling
18 to 36 inches
Light grayish brown sandy clay loam with distinct yellow mottling
36 to 54 inches
Light gray sandy clay loam with distinct yellow and red mottling
54 to 72 inches
Gray sandy clay loam with faint yellow mottling
72 to 90 inches
Light grayish brown sandy loam with distinct dark gray mottling
90 to 144 inches
Very light gray sandy loam with distinct gray mottling
Seasonal High Water Level (SHWL)
The SHWL is typically indicated by coloration and mottling within the soils. Mottling in
exposed surface soils and ponding was observed during our site visit.
Bdsed"on our observations of the site and soil conditions, we estimate the SHWL.at the. planned
pond location is at the ground surface (depth of 0.0 inches).
Subsurface Exploration Services Report
New Retention Pond at COMtech Professional Center
COMtech Business Park
Pembroke, North Carolina
Measured Depth to Ground -water
Pyramid Geosciences, Inc.
Project No. 09FCS-2489
Document No. 09F-2216
October 13, 2009
Page 3
The depth to ground -water was measured on 4 separate occasions. The measured depths are
provided below.
Date
Time
Hours of
Stabilization
Depth to
Ground -water
October 8, 2009
6:00 pm (completion of boring)
0 hrs.
11.0 ft
October 9, 2009
2:00 pm
20 hrs.
9.0 ft.
October 12, 2009
1:00 pm
92 hrs.
7.5 ft.
October 13, 2009
12:00 pm
114 hrs.
7.0 ft.
Baied.on our measurements, the stabilized around -water depth is approximately 7.0 ft. below: the
existing -
ground -surface -
Additional Considerations
A 10-11. deep drainage ditch was excavated along the north and west boundaries of the site less
than 3 to 4 yrs. ago. In addition, site grades at the pond site may have been raised during recent
construction activities. We expect that the new drainage ditch and possible placement of fill
material in the past may have altered the hydrologic conditions at the pond site. These possible
alterations, however, are considered to be relatively minor in significance.
Also, fluctuation in the ground -water level should be expected due to seasonal climatic changes,
construction activity, development activities, rainfall variations, surface -water runoff, and other
site specific factors.
Closure
We trust the information provided herein will be sufficient for your immediate needs. Should
you have any questions or need additional information, please do not hesitate to contact us.
Sincerely,
PYRAMID GEOSCIENCES, INC.
S 29125
Larry R. M achum, P.E.
Chief Engineer
NC PE Registration No. 029125.�, •`
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Location Plan
Hand Sketch
09F-FC1-2489
1 1
P RA D GEOSCIENCES, INC.
Date Oct-09
Subsurface Exploration Services Report
New Retention Pond at COMtech Professional
Center
COMtech Business Park
Pembroke, North Carolina
Drawn By LRM
Checked By LRM
136-A Bow Street
Fayetteville, North Carolina 28301
Scale As Noted
Project No. 09FCS-2489
Book 1674 Page 809
This Certifies ft at PIN: 1417-01-=08
has been verified; the legal description
therein matdles the PIN and is free of any
delmquerd ad vabrem tax liens dtaged
to the CO1Q1 err A6113M
'� DCew--�neu,
2008006322
EMM. Saman M. r rra SM.00
&13-0 03.02:35 EN
®vrrn a tomaa
r.m
BK:D 1674
PG:809-811
New fi) tei- 141 01 ooaoar
COUNTY DEED- J. flat Kinlaw, Jr., P.O. Bo: 1371, Lumberton, NC 29358
ParceR Part of 1/17-01480RA8
Na®a2w VeardbW YepqwSyrapertles Croup LLC, P.O. Bin 135% Pembroke, NC 2KM
STATE OF NORTH CAROLINA-ROBESON COUNTY
THIS DEED made this the 13e day of February, 2008 by Robeson County, a body politic
and wrtporate, party of the first part, to Venture Properties Group, LLC. P.O. Boa 1359,
Pemhtdm, NC 28372 of the County of Robeson, State of North Carolina, of the second
Part-
WITNESSETH: That the said party of the first part in consideration of the sum of
THIRTY ONE THOUSAND ONE HUNDRED DOLLARS AND NOIOOTHS
(f31,100.00) in hand paid by the said party of the second pan, the receipt whereof is
hereby acknowledged, does hereby release, quioclaim and convey unto the said party of
the second part to its heirs and assivs forever, all right, title and iutaest which the
County of Robeson has in and to the following lands in Pembroke Township, Robeson
County, North Carolina, bounded and described as follows, to -wit:
FOR DESCRIPTION OF PROPERTY SEE EXHIBIT "A" ATTACHED HERETO.
To have and to hold the above described land and premises, with the appurtenances unto
the said party of the socand part, its heirs and assign forever -
I. WrTWESS WHEREOF, the said party of the first part has caused this instrument to be
signed in its named by the
Clerk to its
to
of its Board of Co®msmoness and attend by the
:and its corporate seal to be hereto affnted, all by
duly givcn-
COUNTY OF ROBESON
Book 1674 Page 810
NORTH CABOtJKA-ROBESON COUNTY
lhrs is ovudY tliuonme �r'Febnrmy,2W$before CNN—(�j�'�` (�-s. p_[Jf1//�yO.'_
of Robeson Ca ly, pasmally®e Tammy S. Freeman,with wh® I an personally wqmdatied •e`o
being duly sworn, deposes and says: that Noah Woods is the Chairman of the Board of Commissioners and
that Tammy S. Freeman is the Clerk to the Board of Commissioners of Robeson County, the body politic
and corporate described in and which executed the foregoing instrument that he knows the common seal of
said corporation was subscribed thereto by the Chairman of the Board of Commissioners and attested by
said Clerk to the Board of Commissioners, and the common seal was affixed, all by order of the Board of
Commissioners of County of Robeson duly given, and said instrument is the act and deed of said County of
Robeson
this the /0 day of February, 2009
s t% v a
C011lln'?
NOTARY FUECC
MY COMMISSION EXPIRES: NO Chonidat �~ �� It NO
STATE OF NORTH CAROLINA-ROBESON COUNTY
The fofegoing omtificate of
of Robeson County, is
adj0dgad to be correct let the same with the cer ificane be registered.
Witness my hand, this the day of , 2008.
Clerk of Superior Court
Filed for registration on the day of 2008, at —o'clock—M. and
re Wstmed in the office of the Register of Deeds of Robeson Co mry in bode
page_ this day of , 2008.
Register of Deeds
Book 1674 Page 811
EXHIBIT "A"
THE FOLLOWING DESCRIBED PROPERTY IS SUBJECT TO COVENANTS
AND RESERVATIONS RECORDED IN BOOK 1203, AT PAGE 172, ROBESON
COUNTY REGISTRY.
All that certain tract or parcel of land lying about 2'h miles southeast of the center
of Pembroke, NC, about 300 feet northwest of Comtech Drive and adjacent to and
on the southwest side of Three Hunts Drive (a 60 ft. right of way) and adjoining the
lands of Bio-Powers (1463/31) and Quality Housing Corporation (14301185) on the
southwest ,Township Developers, LLC (1545/503) on the northeast and now or
formerly Redmond Homes, Inc. (1006/378) on the northwest and Lowery
Construction and Mechanical (1450/519) on the southeast and being more
particularly described as follows:
BEGINNING at a iron rod set in the southwest right of way line (60ft. right
of way) of Three Hunts Drive, said iron rod having NC Grid Coordinates (NAD 83,
GPS Observation) N=326,226.7550 and E=1,949,205.6369, said iron rod being the
north corner of Lowery construction and Mechanical (1450/519), said iron rod
being located North 34 degrees 46 minutes 15 seconds West 266.22 feet from a iron
rod found in the southwest right of way line of Three Hunts Road, at its intersection
with the northwest line of Comtech Drive (100 right of way) and runs thence from
said beginning iron rod with northwest line of said Lowery Construction and
Mechanical tract South 54 degrees 14 minutes 53 seconds West 355.08 feet to a iron
rod found, Lowery's west corner and in the northwest line of Bio-Powers (1463/31);
thence with said northeast line North 36 degrees 16 minutes 21 seconds West 263.19
feet to a iron rod found; thence North 53 degrees 09 minutes 50 seconds East 1581
feet to a iron rod found, a comer with Quality Housing Corporation (1430/185);
thence with the northeast line of said Quality Housing Corporation tract, North 36
degrees 16 minutes 22 seconds West 500.31 feet to a iron rod found in a ditch;
thence with the center of said ditch, North 68 degrees 56 minutes 05 seconds East
58.89 feet to a iron rod found in said ditch; thence continuing with said ditch North
37 degrees 41 minutes 38 seconds East 60.00 feet to a iron rod found in said ditch;
thence continuing with said ditch North 53 degrees 13 minutes 15 seconds East 97.51
feet to a iron rod found in said ditch; thence continuing with said ditch North 53
degrees 17 minutes 03 seconds East 200.21 feet to a iron rod found in said ditch, the
west comer of the Township Developers, LLC 5.30 acre tract (1545/503); thence
with the southwest fine of said 5.30 acre tract, South 34 degrees 46 minutes 15
seconds East 239.65 feet to a iron rod set in the northwest curved right of way line
(50ft. radius) of Three Hunts Road; thence with the curved right of way line having
a 50 foot radius, the chord being South 07 degrees 14 minutes 47 seconds West 99.60
feet to a iron rod set at the pt of said 50 ft. radius and the pc of a 25 foot radius;
thence with the southwest right of way line of a curve having a 25 foot radius having
a chord of South 56 degrees 11 minutes 15 seconds East 18.26 feet to a iron rod set
in said southwest right of way tine of Three Hunts Drive, the pt of said curve; thence
with the southwest right of way fine of Three Hunts Drive, South 34 degrees 46
minutes 15 seconds East 44.92 feet to the beginning containing 6.22 acres more or
less.
And being a part of that 494.11 acre tract conveyed by Pates Supply Company, Inc.
and Pates Feed and Livestock, Inc. to Robeson County, a body Politic and
Corporate by deed dated 9 December, 2004 and recorded in Deed Book 1434, Page
79, Robeson County Registry.
Bearings referenced to Deed Book 1434, Page 79.
Exempt from Robeson County Subdivision Ordinance under Article V, Section 501,
Item h.