20081070 Ver 1_More Info Received_20080827

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"Practical Engineering &
Envirnnmental Solutions"
2050 Northpoint Drive a Suite A • Winston-Salem, NC 27106
August 26, 2008 Phone: [phone] • Fax: [phone]
e-mail: [e-mail]
Mr. Monte Matthews
Raleigh Regulatory Field Office
US Army Corps of Engineers
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27586
Telephone [phone] (Ext. 25)
Mr. John Dorney
Division of Water Quality
NCDENR
4401 Reedy Creek Road
Raleigh, North Carolina 27607
Telephone [phone]
Ms. Sue Homewood
Division of Water Quality
NCDENR
585 Waughtown Street
Winston-Salem, North Carolina 27107
Telephone [phone]
RE: Revisions to Preconstruction Notification Application
Nationwide Permit #29, Piping a Stream, Residential Development
Stream: UT to Flat Shoal Creek
Pilot Mountain, Surry County, NC
Our Project #08.330
RECEIVED -
M1' C Ceat. of ENR
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REgio?aI Q#flce
SEP 2 2008
pENN ?SSOFtM`NA?R???C?
WEZ?`Nps pND
Dear Mr. Matthews, Mr. Dorney, and Ms. Homewood:
On behalf of Bill Inman, Geoscience & Technology, P.A. (GeoSci) is pleased to submit the
enclosed revisions to Preconstruction Notification Form (PCN) for piping a 70 linear foot (LF)
section (total impact 150 LF) of a rural stream on the north side of Simmons Grove Church Road
near Pilot Mountain, NC. These revisions are in response to written comments from Monte
Matthews of the Army Corps of Engineers and comments from Sue Homewood at a site meeting
on August 6, 2008. The following text contains additional information concerning the proposed
project. Where the information pertains to specific items in the PCN, the PCN section numbers are
used.
Mr. Matthews also asked for a delineation of affected aquatic sites, including wetlands, vegetated
shallows, and riffle pool complexes. Based on conversations at the site with the Army Corps of
Engineers representative on August 6, 2008, it is GeoSci's understanding that this requirement has
been fulfilled.
Project Description (PCN §II1.10)
Mr. Matthews asked for construction drawings of the proposed culvert and discharge apron. Ms.
Homewood asked that provisions for dewatering the stream during pipe installation be included
with the construction drawings. GeoSci engineer Carl von Isenburg added 18 LF to the discharge
apron and specified that a temporary rock dam be installed a maximum of 30 LF upstream from the
pipe inlet. The rock dam will allow for installation of a pump to dewater the construction site during
pipe installation.
Sheet S 1 is an adaptation of the approved Erosion and Sediment Control Plan for this development
provided by Lewis Cox, PLS, which indicates proposed construction details. S2 provides a cross-
section of the proposed crossing as well as construction sections of the pipe and discharge apron.
The proposed project consists of.
1) A temporary gravel stream crossing within the proposed permanent impact area (existing).
2) Constructing temporary sediment traps on both sides of the stream at the upstream and
downstream ends of the permanent impact (existing).
3) Construction of a temporary rock dam no more than 30 LF upstream from the proposed pipe
inlet to allow placement of a dewatering pump.
4) Placing pipe bed.
5) Placing 70 LF of 48-inch CMP.
6) Installing a 50 LF trapezoidal rip-rap outlet apron
7) Backfilling around and over pipe, with final grading to planned grades for the roadway.
8) Removing temporary measures, e.g. temporary sediment traps, rock dam and roads.
Proposed Impacts to Waters of the Untied States/Waters of the State (PCN §VI.1)
Under the proposed construction, approximately 120 linear ft. of the stream will be permanently
impacted. The 120 ft. of impact consists of nominally 70 LF of pipe and 50 LF of outlet apron. The
dewatering rock dam is a temporary impact of no more than 30 LF. The total impact is 150 LF.
These lengths are measured along the mapped centerline of the stream.
Proposed Impacts to Waters of the Untied States/Waters of the State (PCN §VIA. §VI.6)
These sections are modified to reflect the revisions to the impact that include an additional 18 LF of
discharge apron and the 30 LF of temporary impact caused by the dewatering dam. The total linear
footage of stream impact increased from 112 to 150, which includes the 30 LF of temporary impact.
The impacted acreage increased from 0.0077 to 0.0104 acres
Schedule
Construction of the roadway has begun and, as indicated above, a temporary construction stream
crossing has been installed. Installation of the conduit and permanent roadway will begin upon
receipt of approvals from the Army Corps of Engineers and the NC Division of Water Quality.
Submittal
The original and one (1) copy of these revisions to the original application are enclosed for the
Corps of Engineers. Six (6) copies are enclosed for the Division of Water Quality in Raleigh. One
(1) copy will be hand delivered to the Division of Water Quality in Winston-Salem. A check made
payable to the NC Division of Water Quality for $240.00 was attached to the cover page of the
original copy of the application sent to the NC DWQ.
Please let us know if you have any questions or require further information with regards to this
application.
With best regards,
GEOS CE AND TECHNOLO
3GAt.
Carl von Isenburg P.
Senior Civil Engineer
enclosures: PCN forms
Original and one (1) copy to Monte Matthews, ACOE
Six (6) copies to John Dorney, DWQ
One (1) copy to Sue Homewood, DWQ-WSRO
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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
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 Soil 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: Ingleside
2. T.I.P. Project Number or State Project Number (NCDOT Only):
3. Property Identification Number (Tax PIN): Surry County Parcel 5957-01-19-9619
4. Location
County: Surry Nearest Town: Pilot Mountain
Subdivision name (include phase/lot number): Ingleside Eddington Road Stream Crossing
Directions to site (include road numbers/names, landmarks, etc.):
Cook School Road exit from US 52N; Cook School Road (SR181 S) to left on Simmons Road (SR 1827); then left
on Simmons Grove Church Road (SR 1826); then approximately 2200 feet to Ingleside entrance (right), then
right on Eddington Road to stream crossing.
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): 364297 °N 80.5244 ow
6. Property size (acres): 45.14
7. Name of nearest receiving body of water: Unnamed tributary to Flat Shoal Creek
8. River Basin: Yadkin
(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 aoolication:
The property, is mostly wooded and is being graded and prepared for residential development and is surrounded
by rural residential, agricultural and undeveloped properties. A temporary stream crossing has been installed
(gravel) to allow grading equipment to cross. The temporary crossing is within the proposed conduit footprint.
Page 6 of 12
10. Describe the overall proiect in detail, including the type of equipment to be used:
Applicant will install 70 LF of 48-inch CMP culvert in the existing stream discharging to a SO foot long outlet
stabilization structure (rip-rap apron). See Sheets S1 and S2 for locaitons and details. A temporary rock dam will
be installed a maximum of 30 LF upstream of the pipe inlet to allow for dewatering. Typical excavation
equipment, such as trackhoes, backhoes, and bulldozers will be used.
11. Explain the purpose of the proposed work:
The purpose of the project is to fill the stream valley to provide roadway access to lots in the northeast corner of
the subdivision.
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
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications 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.
To our knowledge, no jurisdictional determinations and/or permits have been requested and/or obtained for this
project.
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.
No fitture permit requests are anticipated for this project.
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
riprap 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:
A temporary construction crossing consisting of gravel is installed in the stream within the proposed location of the
conduit noted on SL This application is for a permanent 70 LF 48-inch conduit, a SO LF outlet apron and
accompanying fill for a roadway stream crossing. A temporary rock dam will be installed a maximum of 30 LF
upstream from the pipe inlet to allow dewatering during construction. Temporary sediment traps are installed on both
sides of the crossing (See SI ); however, no stream impact is proposed for these traps and they will be removed
following constniction.
Page 7 of 12
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
Site Number
(indicate on map)
Type of Impact Type of Wetland
(e.g., forested, marsh,
herbaceous, bog, etc.) Located within
100-year
Floodplain
es/no Distance to
Nearest
Stream
linear feet Area of
Impact
(acres)
No Wetland impacts

Total Wetland Impact (acres)
3. List the total acreage (estimated) of all existing wetlands on the property: NA
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, multiply length X width, then divide by 43,560.
Stream Impact
Number
indicate on ma
Stream Name
Type of Impact Perennial or
Intermittent? Average
Stream Width
Before Impact Impact
Length
linear feet Area of
Impact
acres
Permanent 001 to Flat Shoal Cree Culvert and apron Perennial 3 feet 120 0.0083
Temporary 001 UT to Flat Shoal Cree Dewatering Dam Perennial 3 feet 30 0.0021

Total Stream Impact (by length and acreage) 150 0.0104
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.
Open Water Impact
Site Number
indicate on ma Name of Waterbody

(if applicable)
Type of Impact Type of Waterbody
(lake, pond, estuary, sound, bay,

ocean, etc. Area of
Impact

acres
No open water impacts

Total Open Water Impact (acres) 0.0
Page 8of12
6. List the cumulative impact to all Waters of the U.S. resulting from the proiect:
Stream Impact (acres): 0.0104
Wetland Impact (acres): 0.0
Open Water Impact (acres): 0.0
Total Impact to Waters of the U.S. (acres) 0.0104
Total Stream Impact (linear feet): 150
7. Isolated Waters
Do any isolated waters exist on the property? ? Yes Q 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.
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 duriniz construction to reduce impacts.
Access to the lots at the northeast corner of the property was not possible from Simmons Grove Church Road without
a road from the western side of the site. This is based on the fact that properties along Simmons Grove Church Road
that could provide access are not owned by the developer. Development of the residential lots at the northeast end of
the project is not economically feasible unless the stream valley is filled and piped in order to provide access to the
lots.
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.
Page 9 of 12
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
htti)://h2o.enr.state.nc.us/ncwetlands/strmgide.html.
1. 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.
Based on the proposed permanent impact of 120 LF of stream impacts and no wetland impact, mitigation is not
proposed.
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://h2o.enr.state.nc.us/wip/index.htm. If use of the NCEEP is proposed, please
check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet): None
Amount of buffer mitigation requested (square feet): None
Amount of Riparian wetland mitigation requested (acres): None
Amount of Non-riparian wetland mitigation requested (acres): None
Amount of Coastal wetland mitigation requested (acres): None
Page 10 of 12
IX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ? No Fx]
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 SEPA
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 ?
X. 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
(Meuse), 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 x?
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 M tilga ;e
3 (2 for Catawba)
1.5
Total
* 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.
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. None proposed
Page 11 of 12
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.
Total site acreage is 45.14. Existing impervious area is zero. Proposed impervious area is approximately 655 acres or
14.5%. proposed impervious acres includes paved roadways, estmated driveways for 52 lots, and estimated housing
footprints for 52 lots.
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.
Wastewater disposal will be individual onsite wastewater systems as permitted by Surry County Department of
Environmental Health. It is assumed that they will be non-discharge systems; however, system types will be
determined for each lot based on site evaluations as described in the North Carolina Administrative Code Title 15A,
Ch. 18. SC 18A. Section .1900.
XHI. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ? No X?
Is this an after-the-fact permit application? Yes FX1 No ?
The temporary stream crossing has been installed.
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 Q
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://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description:
The proposed project will encompass the entire tract; therefore, there is no room for additional development.
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).
Page 12 of 12
agent's signature is valid only if an authorization letter from the applicant is provided.)