20080067 Ver 2_More Info Received_20080721

WITHERS ° RAVENEL
ENGINEERS 1 PLANNERS I SURVEYORS
111 MacKenan Drive
CARY, NORTH CAROLINA, 27511
[phone]
FAX [phone]
TO: NC-Division of Water Quality
2321 Crabtree Boulevard
Raleigh, NC 27604
WE ARE SENDING YOU
? Shop Drawings
? Copy of Letter
® Attached via
? Prints
? Change order
6g-M6 7v?
LEUM OF 7 ° ° NSMU7&L
DATE 7/21/08 JOB NO. 206145 7.00
ATTENTION Cyndi Karoly and Ian McMillan
PHONE #
RE: Alston Pond
Courier the following items:
? Plans ? Samples ? Specifications
? Diskette ?
COPIES DATE NO. DESCRIPTION
5 Response to Request for Additional Information
2008
THESE ARE TRANSMITTED as checked below:
? For approval ? Approved as submitted ? Resubmit copies for approval
® For your use ? Approved as noted ? Submit copies for distribution
? As requested ? Returned for corrections ? Return corrected prints
? For review and comment ?
? FOR BIDS DUE 20 ? PRINTS RETURNED AFTER LOAN TO US
REMARKS:
Received By:
COPY TO: file SIGNED: Todd Preuninger
if enclosures are not as noted, kindly notify as at once.
WITHERS RAVEN EL
ENGINEERS I PLANNERS I SURVEYORS
July 21, 2008
NC-Division of Water Quality
Attn: Ms. Cyndi Karoly and Mr. Ian McMillan
2321 Crabtree Blvd.
Raleigh, North Carolina 27604
Re: Request for Additional information - Alston Pond
W&R Project #: 2061457
DWQ Project #: 08-0067
Dear Ms. Karoly and Mr. McMillan,
We received your request foradditional information regardingthe proposed impacts associated with theAlston
Pond project. I have included a brief response to each of your requests below. Additionally, in orderto bypass
swales at the BMP outlets, it was necessary to impact small sections of the riparian buffer. Revised impact maps
and a revised PCN form are attached.
Your letter asks for the following information:
1. In order to receive a 401 approval with a condition for final approval of the stormwater management
plan, please provide the following information about the each of the four proposed preliminary
BMP designs:
a. The type of BMP that will be provided.
The applicant will utilize wetponds followed by level spreaders and hlterstrips.
b. A depiction of the drainage area.
A full-scale map of the drainage areas is included with the attachments.
c. A calculation of the water quality volume based on the drainage area size and land use.
Calculations are included with the attachments.
d. A showing that the proposed BMP sizing will be adequate to treat the water quality
volume.
A full-scale map and 1sx17 details of each outfall are also included with the attachments.
Please feel free to call if you have questions or require additional information. We trust that this information
will allow you to complete your review of this project.
Sincerely,
WITHERS & RAVENEL, INC.

Todd Preuninger
Senior Biologist
Attachments:
1) Stormwater calculations and maps
2) Revised PCN and buffer impact maps
D
:lUl. 2 ?. 2pO8
,, rC1R?
111 MacKenan Drive i Cary, NC 27511 1 tel: [phone] fax: [phone] www.withersravenel.com
7040 Wrightsville Avenue i Suite 101 i Wilmington, NC 28403 1 tel: [phone] i fax: [phone]
Brunswick Surveying 1 1027 Sabbath Home Rd, SW i Supply, NC 28462 1 tel: [phone] fax: [phone]
??oF WA7- gQ Michael F. Easley, Governor
q William G. Ross Jr., Secretary
I- North Carolina Department of Environment and Natural Resources
Q C Coleen H. Sullins, Director
Division of Water Quality
March 24, 2008
DWQ Project # 08-0067, Ver. 2
Wake County
CERTIFIED MAIL: RETURN RECEIPT REQUESTED
Mr. Jeffrey Smerko
North Broad Street, LLC
14600 Weston Parkway
Cary, NC 27513
Subject Property: Alston Pond/North Broad Street
Ut to Basal Creek [030403, 27-43-15-3, B, NSW]
REQUEST FOR MORE INFORMATION
Dear Mr. Smerko:
On February 27, 2008, the Division of Water Quality (DWQ) received your application dated
February, 2008, to fill or otherwise impact 0.06 acres of 404/wetland, 196 linear feet of perennial
stream (147 linear feet permanent impact and 49 linear feet temporary impact), and 8,999 square
feet of Zone 1 Neuse River basin protected riparian buffers and 5,210 square feet of Zone 2
Neuse River basin protected riparian buffers to construct the proposed residential development.
The DWQ has determined that your application was incomplete and/or provided inaccurate
information as discussed below. The DWQ will require additional information in order to
process your application to impact protected wetlands and/or streams on the subject property.
Therefore, unless we receive five copies of the additional information requested below, we will
have to move toward denial of your application as required by 15A NCAC 2H .0506 and will
place this project on hold as incomplete until we receive this additional information. Please
provide the following information so that we may continue to review your project.
Additional Information Requested:
In order to receive a 401 approval with a condition for final approval of the stormwater
management plan, please provide the following information about the each of the four
proposed preliminary BMP designs:
a. The type of BMP that will be provided.
b. A depiction of the drainage area.
c. A calculation of the water quality volume based on the drainage area size and land
use.
d. A showing that the proposed BMP sizing will be adequate to treat the water
quality volume.
NorthCarolina
401 Oversight/Express Review Permitting Unit Naturally
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Internet ht,tp !-hZu cnr ?f to i?cu %nc??etiands
An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper
North Broad Street, LLC
Page 2 of 2
March 24, 2008
Please submit this information within 30 calendar days of the date of this letter. If we do not
receive this requested information within 30 calendar days of the date of this letter, your project
will be withdrawn and you will need to reapply with a new application and a new fee.
This letter only addresses the application review and does not authorize any impacts to wetlands,
waters or protected buffers. Please be aware that any impacts requested within your application
are not authorized (at this time) by the DWQ. Please call Ms. Cyndi Karoly or Mr. Ian
McMillan at 919-733-1786 if you have any questions regarding or would like to set up a meeting
to discuss this matter.
Sincerely,
Cyndi Karoly, Supervisor
401 Oversight/Express Review Permitting Unit
CBKlijm
cc: Lauren Witherspoon, DWQ Raleigh Regional Office
USACE Raleigh Regulatory Field Office
File Copy
Central Files
Todd Preuninger, Withers & Ravenel, 111 MacKenan Drive, Cary, NC 27511
080067 V er2AlstonPondNorthBroadStreet(W ake)On_Hold2
.44
Office Use Only: Form Version March 05
USACE Action ID No. DWQ No.
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
I. Processing
1. Check all of the approval(s) requested for this project:
® Section 404 Permit ® Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
® 401 Water Quality Certification ? Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested
NWP's 3 & 29
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ?
4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII,
and check here: ?
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ?
II. Applicant Information
1. Owner/Applicant Information JUL. 2 1 2008
Name: North Broad Street, LLC Attn: Jeffrey Smerko._
Mailing Address: 14600 Weston Parkway WETLANDS ANDSTORMINATEgf3gANOH
Cary, NC
Telephone Number: 919-678-8800/919-818-2512 Fax Number: 919-678-8885
E-mail Address: jrsmerko(a,ec.rr.com
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Withers & Ravenel Attn: Todd Preuninger
Company Affiliation: Engineer/Environmental Consultant
Mailing Address: 11 I MacKenan Drive
Telephone Number: 919-469-3340 Fax Number: 919-535-4545
E-mail Address: tpreuningerAwithersravenel.com
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
Page l of 9
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Sol] Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Alston Pond Subdivision
2. T.I.P. Project Number or State Project Number (NCDOT Only): NA
3. Property Identification Number (Tax PIN): Pin #: 0658-53-7087
4. Location
County: Wake Nearest Town: Fuquay-Varina
Subdivision name (include phase/lot number): Alston Pond
Directions to site (include road numbers/names, landmarks, etc.): The site is located on the
east and west side of Hwy 55, approximately 2500 ft northwest of the intersection of Wade
Nash Road (SR 1113) and Hwv 55 in Fuuuav-Varina. North Carolina.
5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): 35.6262765 °N 78.8132158 °W
6. Property size (acres):
7. Name of nearest receiving body of water: Basal Creek
8. River Basin: Neuse River Basin
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: The site is approximately 75% forested and 25% agricultural
fields. A small residential community is located to the north, NC HWY 55 is located to the
west, and Basal Creek borders the property to the east.
10. Describe the overall project in detail, including the type of equipment to be used: The
overall site includes the construction of a residential community. In addition a dam will be
rehabilitated to ensure that it meets the dam safety act. Large grading equipment will be used
Page 2 of 9
to install the infrastructure (i.e. roads, sewer, BMP's) and prepare the site for the construction
of residential homes and apartments.
11. Explain the purpose of the proposed work: The purpose of this work is to meet the demand
for single family homes in the surrounding area.
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
cert ifications were issued or withdrawn. Provide photocopies of previously issued permits,
cert ifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules. Wetlands were delineated by Withers & Ravenel during March 2007.
Site meetings were conducted with the NC-DWQ on March 9, 2007 (NBRRO 07-028 and the
USACE on October 30, 2007 to verify stream origin points and our wetland delineation. On
October 17, 2007 sign-off maps were submitted to the USACE for approval. In addition, a copy
of the dam rehabilitation plan was submitted to NC-DWQ for their comments. The NC-DWQ
determined that impacts to the stream during dam reconstruction will be considered temporaU.
The original permit application was submitted on January 8, 2008. On January IS 2008 and
February 7, 2008 DWQ requested additional information regarding the Summary sheets for the
BMP's, road stubs, and the overall alignment for Hilltop Needmore Road. On February 27, 2008
a revised application including all previous correspondence regarding the road alignment as well
was submitted for your review. On March 13, 2008 a meeting was conducted with the USACE,
DWQ, and representatives from Withers & Ravenel and the Town of Fuquay-Varina. At this
meeting it was determined that the permitting course of action would include North Broad Street
LLC applying for the two lane crossing associated with Alston Pond Subdivision and the Town
of Fuquay-Varina would apply for all future impacts associated with the extension of Hilltop
Needmore Road. This determination was based on the alternative analysis of the two
alignments. A map quantifying the impacts for alternative alignments is included in the
attachments.
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
This is a single and complete project with no additional phases proposed at this time.
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
Page 3 of 9
nprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
should be shown on a delineation map, whether or not impacts are proposed to these systems.
Wetland and stream evaluation and delineation forms should be included as appropriate.
Photographs may be included at the applicant's discretion. If this proposed impact is strictly for
wetland or stream mitigation, list and describe the impact in Section VIII below. If additional
space is needed for listing or description, please attach a separate sheet.
1. Provide a written description of the proposed impacts: The proposed permanent impacts
consist of 147 linear feet of perennial/important stream channel and 0.326 acres of riparian
buffer for the road crossing (Figure 2); and 0.095 acres of riparian buffer for the installation
of a road near (Figure 4) the northern property boundary. Approximately 0.05 acres of
wetlands and 49 linear feet of perennial channel will be temporarily impacted for dam re-
habilitation (Figure 3) to meet dam safety specifications.
2. Individually list wetland impacts. Types of impacts include, but are not limited to
mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams,
separately list impacts due to both structure and flooding-
Wetland Impact Type of Wetland Located within Distance to Area of
Site Number Type of Impact (e.g., forested, marsh 100-year Nearest Impact

(indicate on map) ,
herbaceous; bog, etc.)
Floodplain
Stream
(acres)
(yes/no) (linear feet)
3 - NWP3 Permanent/Fill Forested No - 150 0.05
3 - NWP3 Permanent/Fill Forested No Abutting 0.01
Total Wetland Impact (acres) 0.06
3. List the total acreage (estimated) of all existing wetlands on the property: 9.62 Acres
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed,
plans and profiles showing the linear footprint for both the original and relocated streams
must be included. To calculate acreage- im iltin1v lenuth X width then divich- by 4'1 560
Stream Impact Average Impact Area of
Number Stream Name Type of Impact Perennial or Stream Width Length Impact
(indicate on map) Intermittent? Before Impact (linear feet) (acres)
2 - NWP29 UT to Basal Crk Permanent/Culvert Perennial 3 147 0.01
3 - NWP3 UT to Basal Crk Temporary Perennial 2 49 0.002
Total Stream Impact (by length and acreage) 196 0.012
5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to
fill, excavation, dredging, flooding, drainage, bulkheads, etc.
Page 4 of 9
Open Water Impact Name of Waterbody Type of Waterbody Area of
Site Number (if applicable) Type of Impact (lake, pond, estuary, sound, bay, Impact
(indicate on map) ocean, etc.) (acres)
NA NA NA NA NA
Total Open Water Impact (acres) NA
6. List the cumulative impact to all Waters of the U.S. resultini2 from the nroiect:
Stream Impact (acres): 0.012
Wetland Impact (acres): 0.06
Open Water Impact (acres): NA
Total Impact to Waters of the U.S. (acres) 0.078
Total Stream Impact (linear feet): 196
7. Isolated Waters
Do any isolated waters exist on the property? ? Yes ®No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
8. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ? uplands ? stream ? wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.): NA
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): NA
Current land use in the vicinity of the pond: NA
Size of watershed draining to pond: NA Expected pond surface area: NA
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts. Prior to site plan development
the applicant requested that a -detailed wetland delineation be conducted so that impacts to
wetlands and `waters' could be minimized. A stream channel bi-sects the property, and in order
to access high ground impacts were unavoidable Impacts were minimized by crossing the
channel at a nearly perpendicular angle and through the use of headwalls In addition the road
was tapered from 4 lanes to 2 lanes at the crossing to further reduce the impacts
Page 5 of 9
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina, available at
http://l12o.enr.state.nc.us/ncwetlands%strm?-,ide.html.
Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
Because impacts to perennial channels are less than 150 linear feet wetland impacts are less
than 0.1 acre, and the buffer impacts are less than 1 /3 of an acre at each crossing
applicant is not proposing mitigation The applicant proposes to preserve the remaining 9
acres of wetlands to offset the wetland impacts needed to re-habilitate the dam
2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at
[phone] to determine availability, and written approval from the NCEEP indicating
that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at http://li2o.enr.state.nc.us/wrp/index.htm. If use of the NCEEP is proposed, please
check the appropriate box on page five and provide the following information:
Page 6 of 9
Amount of stream mitigation requested (linear feet): NA
Amount of buffer mitigation requested (square feet): NA
Amount of Riparian wetland mitigation requested (acres): NA
Amount of Non-riparian wetland mitigation requested (acres): NA
Amount of Coastal wetland mitigation requested (acres): NA
IX.
X.
Environmental Documentation (required by DWQ)
1. Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ? No
2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SERA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ? No ?
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ? No ?
Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Neuse), 15A NCAC 213.0259 (Tar-Pamlico), 15A NCAC 0213.0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify )? Yes ® No ?
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers.
Zone* Impact
(square feet) Multiplier Required
Mitigation
l 10,848 3 (2 for Catawba) NA
2 8,453 1.5 NA
Total 19,301 NA
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
Page 7 of 9
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 2B .0242 or.0244, or.0260.
Because buffer impacts are less than 1/3 of an acre at each crossing and stormwater
conveyances are considered an allowable activity following nitrogen treatment, the applicant
is not proposing mitigation.
XI. Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
stormwater controls proposed in order to protect surface waters and wetlands downstream from
the property. If percent impervious surface exceeds 20%, please provide calculations
demonstrating total proposed impervious level.
The proposed impervious for this project is expected to exceed 24%, however, the stormwater
plans have not been finalized at this time. Multiple areas have been set aside for the installation
of BMP's and filter strips. We request that the NC-DWQ approve this permit application with
the condition that impacts will not occur until the stormwater plan has been submitted and
approved by your office.
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
Sanitary Sewer
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (I 5A NCAC 2H .0500) or any Buffer Rules?
Yes ? No
Is this an after-the-fact permit application`? Yes ? No
XIV. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ? No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http://l12o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: We do
no not believe that this project will result in additional development that will affect downstream
water quality. The project will provide constructed wetlands to treat stormwater before
it leaves the site and maintain 50-foot riparian buffers along the stream channels. If development
occurs on the adjacent parcels these projects will also be required to comply with the Neuse
Buffer Rules and the Town of Fuquay stormwater requirements in order to protect water quality.
Page 8 of 9
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired construction
dates to allow processing time for these permits. However, an applicant may choose to list constraints
associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down
schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or
other issues outside of the applicant's control).

Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 9 of 9
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Project Name: Adams Fuquay Tract
City/State: Fuquay-Varina
Project #: 2061457
Date: 29-May-08
Table 1.1 Surface Area to Drainage Area Ratio for Permanent Pool Sizing for 85% Pollutant
Removal Efficiency in the Piedmont
% Impervious
Cover Permanent Pool Depth (feet)
3.0 4.0 5.0 6.0 7.0 8.0 9.0
10 0.59 0.49 0.43 0.35 0.31 0.29 0.26
20 0.97 0.79 0.70 0.59 0.51 0.46 0.44
30 1.34 1.08 0.97 0.83 0.70 0.64 0.62
40 1.73 1.43 1.25 1.05 0.90 0.82 0.77
50 2.06 1.73 1.50 1.30 1.09 1.00 0.92
60 2.40 2.03 1.71 1.51 1.29 1.18 1.10
70 2.88 2.40 2.07 1.79 1.54 1.35 1.26
80 3.36 2.78 2.38 2.10 1.86 1.60 1.42
90 3.74 3.10 2.66 2.34 2.11 1.83 1.67
Source: NCDENR/DWQ Stormwater Best Management Practices, pg. 5, April 1999
STORMWATER BMP 1

Land Use Area
(ac) % IA Imp. Area
(ac)
Impervious 15.95 98 15.6
Open Space 10.14 0 0.0

Totals 26.09 15.6
Total % Impervious Surface Area = 61.1 %
Surface Area of Permanent Pool:
Assumed depth = 3 feet
SA/DA ratio = 2.45 % From Table 1.1
Minimum pond surface area (SA) = (DA * SA/DA ratio)/100
SA = 0.640 acres
27894 sq. ft.
1-Inch Runoff Volume Calculation
Using the runoff volume calculations in the "Simple Method" as described by Schueler (1987)
Rv = 0.05 + 0.009(1) where, Rv = Runoff coefficient, in./in.
I = Percent impervious
Rv = 0.60 in./in.
Total runoff volume from 1-inch precipitation:
Runoff volume, S = (Design rainfall) (Rv) (Drainage Area)
S = 1.305 acre-ft
56844 cu. ft.
Pro*ect Name: Adams Fuquay Tract
City/State: Fuquay-Varina
Project #: 2061457
Date: 29-May-08
Table 1.1 Surface Area to Drainage Area Ratio for Permanent Pool Sizing for 85% Pollutant
Removal Efficiencv in the Piedmont
% Impervious
Cover Permanent Pool Depth (feet)
3.0 4.0 5.0 6.0 7.0 8.0 9.0
10 0.59 0.49 0.43 0.35 0.31 0.29 0.26
20 0.97 0.79 0.70 0.59 0.51 0.46 0.44
30 1.34 1.08 0.97 0.83 0.70 0.64 0.62
40 1.73 1.43 1.25 1.05 0.90 0.82 0.77
50 2.06 1.73 1.50 1.30 1.09 1.00 0.92
60 2.40 2.03 1.71 1.51 1.29 1.18 1.10
70 2.88 2.40 2.07 1.79 1.54 1.35 1.26
80 3.36 2.78 2.38 2.10 1.86 1.60 1.42
90 3.74 3.10 2.66 2.34 2.11 1.83 1.67
Source: NCDENR/DWQ Stormwater Best Management Practices, pg. 5, April 1999
STORMWATER BMP 2

Land Use Area
(ac) % IA Imp. Area
(ac)
Impervious 24.45 98 24.0
Open Space 15.80 0 0.0

Totals 40.25 24.0
Total % Impervious Surface Area = 60.7 %
Surface Area of Permanent Pool:
Assumed depth = 3 feet
SA/DA ratio = 2.44 % From Table 1.1
Minimum pond surface area (SA) = (DA * SA/DA ratio)/100
SA = 0.980 acres
42706 sq. ft.
1-Inch Runoff Volume Calculation
Using the runoff volume calculations in the "Simple Method" as described by Schueler (1987)
Rv = 0.05 + 0.009(1) where, Rv = Runoff coefficient, in./in.
I = Percent impervious
Rv = 0.60 in./in.
Total runoff volume from 1-inch precipitation:
Runoff volume, S = (Design rainfall) (Rv) (Drainage Area)
S = 2.001 acre-ft
87184 cu. ft.
Project Name: Adams Fuquay Tract
City/State: Fuquay-Varina
Project #: 2061457
Date: 29-May-08
Table 1.1 Surface Area to Drainage Area Ratio for Permanent Pool Sizing for 85% Pollutant
Removal Efficiency in the Piedmont
% Impervious
Cover Permanent Pool Depth (feet)
3.0 4.0 5.0 6.0 7.0 8.0 9.0
10 0.59 0.49 0.43 0.35 0.31 0.29 0.26
20 0.97 0.79 0.70 0.59 0.51 0.46 0.44
30 1.34 1.08 0.97 0.83 0.70 0.64 0.62
40 1.73 1.43 1.25 1.05 0.90 0.82 0.77
50 2.06 1.73 1.50 1.30 1.09 1.00 0.92
60 2.40 2.03 1.71 1.51 1.29 1.18 1.10
70 2.88 2.40 2.07 1.79 1.54 1.35 1.26
80 3.36 2.78 2.38 2.10 1.86 1.60 1.42
90 3.74 3.10 2.66 2.34 2.11 1.83 1.67
Source: NCUtNK/UWQ Stormwater Best Management Practices, pg. 5, April 1999
STORMWATER BMP 3

Land Use Area
(ac) % IA Imp. Area
(ac)
Impervious 4.57 98 4.5
Open Space 6.28 0 0.0

Totals 10.85 4.5
Total % Impervious Surface Area = 42.1 %
Surface Area of Permanent Pool:
Assumed depth = 3 feet
SA/DA ratio = 1.80 % From Table 1.1
Minimum pond surface area (SA) = (DA * SA/DA ratio)/100
SA = 0.195 acres
8507 sq. ft.
1-Inch Runoff Volume Calculation
Using the runoff volume calculations in the "Simple Method" as described by Schueler (1987)
Rv = 0.05 + 0.009(1) where, Rv = Runoff coefficient, in./in.
I = Percent impervious
Rv = 0.43 in./in.
Total runoff volume from 1-inch precipitation:
Runoff volume, S = (Design rainfall) (Rv) (Drainage Area)
S = 0.388 acre-ft
16899 cu. ft.
Project Name: Adams Fuquay Tract
City/State: Fuquay-Varina
Project #: 2061457
Date: 29-May-08
Table 1.1 Surface Area to Drainage Area Ratio for Permanent Pool Sizing for 85% Pollutant
Removal Efficiencv in the Piedmont
% Impervious
Cover Permanent Pool Depth (feet)
3.0 4.0 5.0 6.0 7.0 8.0 9.0
10 0.59 0.49 0.43 0.35 0.31 0.29 0.26
20 0.97 0.79 0.70 0.59 0.51 0.46 0.44
30 1.34 1.08 0.97 0.83 0.70 0.64 0.62
40 1.73 1.43 1.25 1.05 0.90 0.82 0.77
50 2.06 1.73 1.50 1.30 1.09 1.00 0.92
60 2.40 2.03 1.71 1.51 1.29 1.18 1.10
70 2.88 2.40 2.07 1.79 1.54 1.35 1.26
80 3.36 2.78 2.38 2.10 1.86 1.60 1.42
90 3.74 3.10 2.66 2.34 2.11 1.83 1.67
Source: NC:UtNK/UWQ Mormwater Best Management Practices, pg. 5, April 1999
STORMWATER BMP 4

Land Use Area
(ac) % IA Imp. Area
(ac)
Impervious 4.75 98 4.7
Open Space 5.25 0 0.0

Totals 10.00 4.7
Total % Impervious Surface Area = 47.5 %
Surface Area of Permanent Pool:
Assumed depth = 3 feet
SA/DA ratio = 1.98 % From Table 1.1
Minimum pond surface area (SA) = (DA * SA/DA ratio)/100
SA = 0.198 acres
8614 sq. ft.
1-Inch Runoff Volume Calculation
Using the runoff volume calculations in the "Simple Method" as described by Schueler (1987)
Rv = 0.05 + 0.009(1) where, Rv = Runoff coefficient, in./in.
I = Percent impervious
Rv = 0.48 in./in.
Total runoff volume from 1-inch precipitation:
Runoff volume, S = (Design rainfall) (Rv) (Drainage Area)
S = 0.398 acre-ft
17333 cu. ft.
Project Name: Adams Fuquay Tract
City/State: Fuquay-Varina
Project #: 2061457
Date: 29-May-08
Table 1.1 Surface Area to Drainage Area Ratio for Permanent Pool Sizing for 85% Pollutant
Removal Efficiencv in the Piedmont
% Impervious
Cover Permanent Pool Depth (feet)
3.0 4.0 5.0 6.0 7.0 8.0 9.0
10 0.59 0.49 0.43 0.35 0.31 0.29 0.26
20 0.97 0.79 0.70 0.59 0.51 0.46 0.44
30 1.34 1.08 0.97 0.83 0.70 0.64 0.62
40 1.73 1.43 1.25 1.05 0.90 0.82 0.77
50 2.06 1.73 1.50 1.30 1.09 1.00 0.92
60 2.40 2.03 1.71 1.51 1.29 1.18 110
70 2.88 2.40 2.07 1.79 1.54 1.35 1.26
80 3.36 2.78 2.38 2.10 1.86 1.60 1.42
90 3.74 3.10 2.66 2.34 2.11 1.83 1.67
source: rv(-,utrvrvuwQ mormwater tsest management Practices, pg. 5, April 1999
STORMWATER BMP 5

Land Use Area
(ac) % IA Imp. Area
(ac)
Impervious 3.87 98 3.8
Open Space 7.71 0 0.0

Totals 11.58 3.8
Total % Impervious Surface Area = 33.4 %
Surface Area of Permanent Pool:
Assumed depth = 3 feet
SA/DA ratio = 1.47 % From Table 1.1
Minimum pond surface area (SA) _ (DA * SA/DA ratio)/] 00
SA = 0.171 acres
7432 sq. ft.
1-Inch Runoff Volume Calculation
Using the runoff volume calculations in the "Simple Method" as described by Schueler (1987)
Rv = 0.05 + 0.009(1) where, Rv = Runoff coefficient, in./in.
I = Percent impervious
Rv = 0.35 in./in.
Total runoff volume from 1-inch precipitation:
Runoff volume, S = (Design rainfall) (Rv) (Drainage Area)
S = 0.339 acre-ft
14745 cu. ft.
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