20011381 Ver 1_More Info Received_20011211

December 7, 2001
NCDENR — Div of Water Quality
Mr Larry D Coble, WQ Regional Supervisor
585 Waughtown Street
Winston - Salem, NC 27107
so
rumCEIVED
N C. Dept of EH:
DEC 1 9 2001
Winston -Sale4 1
Regional offow
SUBJECT: REQUEST FOR ADDITIONAL INFORMATION
Larry's Homes
DWQ Project #01 1381
Forsyth County
Dear Mr Coble
We have received your request for additional information regarding the above referenced
project In response, attached please find for your review and approval a complete set of
design plans and narrative Included in the design narrative you will find the Pre -
,Construction Notification for Nationwide Permit 32, a Proposed Mitigation Plan, a copy
of the settlement agreement, and design calculations for the proposed stormwater
treatment facility
Specifically, you requested the following
(1) SITE PLANS /MAPS
Please submit a detailed site plan /map that must contain the information
specified in Section 2.3.3 of the Internal Technical Guide for Stream Work in
North Carolina, April 2001. Locate the stream features (such as riffles, pools,
run and glides) and appropriate riparian buffers (see PTR, Inv. v. NCDENR-
DWQ Settlement Agreement, signed August 17, 2001) on the site plan.
The attached design plans contain the required information, where applicable
The settlement agreement makes no reference or requirement regarding riparian
buffers, but does require that the restored Leak Fork Creek be planted in woody
vegetation (preferably trees) no less than 15 feet from the bank full edge The
Proposed Mitigation Plan (Mitchell & Associates, May 29, 2001) states that the
created stream shall be located in a 30 foot buffer zone In accordance with the
settlement agreement and the Proposed Mitigation Plan, restored Leak Fork Creek
shall be located in a riparian buffer that measures 15 feet from the bank full edge
(both sides), and the created stream (tributary to Leak Fork Creek) shall be
located in a 32 foot riparian buffer measured from the toe of the separation berm
to the outer edge of the created floodway
151 Poole Road, 5ulte 100 • Belvdle, NC 28451 • TEL. [phone] • FAX. [phone]
www capefeareng.com

(2) PEBBLE COUNT DATA and SEDIMENT TRANSPORT ANALYSIS
A sediment transport analysis can confirm that a stream has been properly
designed. It is necessary that the predicted sediment transport in the design
stream be demonstrated to be in equilibrium to ensure overall stability will be
achieved. Please submit your sediment transport analysis and pebble count
information.
Please see the attached Proposed Mitigation Plan (Mitchell & Associates, Revised
12/01) for the required Pebble Count Data and Sediment Transport Analysis
(3) MORPHOLOGIC MEASUREMENTS TABLE
Please complete and submit the Morphological Measurements Table, provided
in Appendix B of the Internal Technical Guide for Stream Work in North
Carolina, April 2001.
(4)
Please see the attached Proposed Mitigation Plan (Mitchell & Associates, Revised
12/01) for the required Morphological Measurements Table
PHYSICAL MONITORING
Please refer to the NC Wetlands Restoration Program's Draft Physical and
Vegetation Monitoring Outline (Success Criteria), available at
http: //li2o.ehnr. state. n c. us/ncwetlands/restore.html. Please specify how you
intend to monitor dimension, pattern, and profile of the restored channels.
Your site plans /map should depict locations of permanent cross - sections, photo
reference points, etc. Also note that you will be required to submit annual
Monitoring Reports to the Division for five (5) years within 30 days of the
anniversary of the completion of the stream restoration, per the August 17th,
2001 Settlement Agreement, Item 3.D.e.
The attached site plan shows the location of riparian buffer zones and permanent
monitoring locations Please see the Proposed Mitigation Plan (Mitchell &
Associates, Revised 12/01) for additional details of the Physical Monitoring Plan
(5) BENTHIC MACROINVERTIBRATE MONITORING
Your proposal notes sampling in October and February of each year. This is
not necessary. It is recommended that you select one season, the summer
months are preferred, and be consistent between years.
To document the effects of culvert removal, The Division feels that it may be
possible for the first sample to be collected from inside the culvert along Leak
Fork Creek. We are also concerned for your health and safety; however, and
recommend that you check with all appropriate agencies (OSHA, for example)
and organizations (Unions) to ensure the safety of the samplers.

(6)
Please note that the organization(s) which will be collecting and identifying the
samples must be certified. Please see Appendices 3 and 4 of the Interim,
Internal Technical Guide: Benthic Macroinvertibrate Monitoring Protocols for
Compensatory Stream Restoration Project, May, 2000, which is available at the
above mentioned website, for more information.
A firm certified in the collected of the above described data has been retained to
perform these services The collection and monitoring report are not yet
complete Attached in the Mitigation Plan by Mitchell & Associates is copy of
the contract executed to obtain the required data
LEAK FOR CREEK CULVERT
Per the above referenced settlement agreement, Item 3 G, please provide plans
and specifications for forcing Leak Fork Creek base flow into one culvert, i.e.
partially "plugging" one of the two culverts. Keep in mind that if your plans
include the use of poured concrete structures, the Division has concerns
regarding the use of live concrete in and adjacent to surface waters and special
consideration must be given to how the structure will be established without
allowing live concrete to enter the stream.
The plans for removing sections of Leak Fork Creek and partially "plugging"
Leak Fork Creek do call for poured in place concrete structures Live concrete
will be prevented from entering Leak Fork Creek by diverting flow of the live
stream around any poured concrete until the new structures sets Please see the
attached design narrative for more details regarding the protection of Leak Fork
Creek against introduction of live concrete
(7) EROSION AND SEDIMENTATION CONTROL PLAN
Keep in mind that the appropriate Designated Non point Source Agency (the
City of Winston -Salem Inspections Division, in this case) must review and
approve your Erosion and Sedimentation Control Plan, which is to be revised
accordingly.
A revise Sedimentation and Erosion Control Plan was submitted to the City of
Winston -Salem on October 12, 2001 We have received verbal confirmation from
local staff that the plan is acceptable, as submitted on that date, and that final
approval cannot be given without notification from DWQ that the plan is
approved in regard to stormwater treatment and stream restoration Upon receipt
of that approval, we will revise the S &E plan (if necessary) and resubmit to the
City of Winston -Salem for final plan approval prior to commencement of
construction activities
(8) STORMWA TER MANAGEMENT PLAN
Please submit your plans and specifications for stormwater management
facilities designed to remove 85% TSS according to the most recent version of

the NCDENR Stormwater Best Management Practices Manual. Please also see
the August 17th, 2001 Settlement Agreement, Item 3.B. for additional
information regarding the design of an extended detention wetland(s). If the
runoff from the project site cannot be added to the wetlands, bioretention areas,
consistent with the Manual designs, must be provided to treat the runoff from
the areas not draining to the wetlands. You can contact Mr. Todd St. John at
919 - 733 -9584 if you have any questions regarding this issue.
The above referenced settlement agreement specifies that an extended detention
wetland facility "may" be provided It does not specify that an extended detention
wetland facility shall be provided The verbiage of the settlement agreement
gives us the option, not requirement, of using wetlands as stormwater treatment
We choose to use a wet detention basin to satisfy the stormwater treatment
criteria The attached calculations in the Design Narrative demonstrate the
proposed wet detention basin will remove 90% TSS without the use of a
vegetated filter All runoff from the project will be diverted to the wet detention
basin, so no additional bioretention areas are necessary
I trust this information to be sufficient for your review and approval If you have any
questions, comments, or require additional information regarding this matter, please
contact this office
Sincerely
K Davis Fennell, P E
cc John Dorney, Division of Water Quality
Ted Parker, PTR, Inc
David Syster, Mitchell & Associates
John Thomas, US Army Corps of Engineers

Design Narrative
For
4060 Patterson Ave.
Forsyth County, North Carolina
Prepared for
Ted Parker
PO Box 1366
Lumberton, North Carolina 28359
(910) 608 -2000
October 11, 2001
Revised December 7, 2001
Prepared by
Cape Fear Engineering, Inc.
151 Poole Rd, Suite 100
Belville, North Carolina 28451
(910) 383 -1044

DESIGN NARRATIVE
1. GENERAL:
The project site is located off Patterson Avenue in the city of Winston - Salem, North Carolina,
Forsyth County The project area is approximately 9 05 acres Erosion Control considerations
are to be in accordance with the City of Winston -Salem requirements
The intent of this project is to comply with a settlement agreement stemming from an
enforcement action with the North Carolina Department of Environment and Natural Resources,
Division of Water Quality Reference file number 01 HER 1378
2. EXISTING SITE:
An existing gravel parking area fills approximately 4 3 acres of the 9 acre site The remaining
undeveloped portion of the site is hilly with slopes ranging from five to fifty percent The site
drains from the south to the north towards Patterson Avenue
Nearly 900 linear feet of Leak Fork Creek runs through the site, approximately 630 linear feet of
which has been piped. Un unnamed tributary to Leak Fork Creek also runs through the site
(approximately 400 linear feet) Nearly 240 linear feet of the tributary has been piped
3. PROPOSED IMPROVEMENTS:
In accordance with the settlement agreement between the state of North Carolina and PTR, Inc,
the total impact to Leak Fork Creek shall be reduce to less than 500 feet Approximately 130 �Sa
linear feet of piping installed in Leak Fork Creek shall be removed, leaving the total culverted
length of Leak Fork Creek at less than 500 linear feet Of the piping to remain, one of the two
culverts shall be partially plugged to force base flow in the stream to pass through a single
culvert Higher flows produced by storm events will pass through both pipes
Poured in place concrete structures shall be utilized to secure the pipes to remain (entrance
footers) and to plug one of the culverts (entrance weir) See sheet C -3 of the attached plan set for
construction detail To protect Leak Fork Creek from introduction of live concrete, the entrance
footers /weir shall be formed and poured one at a time While concrete work is being installed in
one pipe, a diversion dike shall be constructed to divert all flow to the open culvert pipe All
poured concrete shall be allowed to set for a minimum of 24 hours to allow it to harden The 24
hour cure time is sufficient to protect Leak Fork Creek from introduction of any live concrete
After 24 hours, the diversion dike shall be rerouted to the open culvert and the entrance footer
constructed at the other pipe To maintain positive discharge throughout construction, the
entrance footer of the pipe to remain open (no entrance weir) shall be constructed first The
entrance footer that includes a weir to plug the invert shall be constructed second
To mitigate the remaining impacts to Leak Fork Creek and its unnamed tributary, approximately
1150 linear feet of new stream shall be created where the existing tributary is piped The created

stream shall be constructed in accordance with the Mitigation Plan prepared by Mitchell &
Associates (revised 12/7/01) Please see the attached plan set for proposed grading and
construction details for the stream creation
Finally, all runoff from impervious surfaces shall be collected and treated to remove 90% TSS
A wet detention basin, designed in accordance with Division of Water Quality Best Management
Practices, is proposed for the site The proposed wet detention basin receives runoff from the
entire project, so no alternative treatment measures are necessary Please see the attached plan
set for proposed grading and construction details of the proposed wet detention basin Attached
calculations demonstrate the treatment capacity of the proposed basin in accordance with
Division of Water Quality Best Management Practices
4. EROSION CONTROL CONSIDERATIONS:
All erosion control measures to comply with the City of Winston -Salem requirements This
project will utilize silt fencing, diversion berms, a stormwater pond and a rock dam to control
and treat sediment runoff
Due to the highly erodible soils in this area, special considerations were given to the velocities of
concentrated flows as shown in the attached calculations. In compliance with the approved
mitigation plan, a riff (or plunge pool) will be used to dissipate velocities coming off the steep
hillside
5. MAINTENANCE CONSIDERATIONS:
During construction, the Contractor shall be required to inspect and repair as needed all erosion
control devices after any significant rain event Any measure found not performing its intended
function shall be repaired immediately Upon completion of construction and establishment of
permanent ground cover, the Owner shall be responsible for maintenance on the project site

LIST OF APPENDICES
I- PRE- CONSTRUCTION NOTIFICATION FOR NATIONWIDE PERMIT 32
2- MITIGATION PLAN BY MITCHELL & ASSOCIATES
3 -COPY OF EXECUTED SETTLEMENT AGREEMENT
4- DESIGN CALCULATIONS - WET DETENTION BASIN

APPENDIX I
PRE- CONSTRUCTION NOTIFICATION
NATIONWIDE PERMIT 32

Office Use Only: Fonn Version April 2001
USACE Action ID No. DWQ No.
If any particular item is not applicable to this project, please enter "Not Applicable" or "N /A" rather than
leaving the space blank
I. Processing
1. Check all of the approval(s) requested for this project
® Section 404 Permit
❑ Section 10 Permit
® 401 Water Quality Certification
❑ Riparian or Watershed Buffer Rules
2. Nationwide, Regional or General Permit Number(s) Requested 32
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 Wetlands Restoration Program (NCWRP) is proposed for
mitigation of impacts (see section VIII — Mitigation), check here. ❑
II. Applicant Information
1. Owner /Applicant Information
Name: Parker Manufacturing, Inc
Mailing Address- Post Office Box 1366
Lumberton NC 28359 -1366
Telephone Number. Fax Number -
E -mail Address
2. Agent 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: Jennifer Burbank
Company Affiliation: Mitchell & Associates
Mailing Address- 3973 -B Market Street
Wilmington, NC 28403
Telephone Number: (910) 254 -0602 Fax Number- (910) 254 -0603
E -mail Address- JpburbankO cs com
Page 1 of 10

III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, iivers, and loads 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 fiill -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: Larry's Homes
2 T I.P Project Number (NCDOT Only)
3. Property Identification Number (Tax PIN)
56B
4. Location
County: Forsyth Nearest Town- Winston Salem
Subdivision name (include phase /lot number): Larry's Homes
Directions to site (include road numbers, landmarks, etc.)- Take HWY 52 North out of
Winston Salem, turn right on Patterson Avenue exit, Larry's Homes is on the west side
of Patterson Avenue approximately 1400 feet north of the intersection of Motor Road
5. Site coordinates, if available (UTM or Lat/Long):
(Note — If project is linear, such as a road or utility line, attach a sheet that separately lists the
coordinates for each crossing of a distinct waterbody )
6. Describe the existing land use or condition of the site at the time of this application- The
entire site has been graded and filled with a culvert through Leak Fork Creek
7. Property size (acres): 5
8. Nearest body of water (stream/river/sound/ocean/lake)- Leak Fork Creek and unnamed
tributary
Page 2 of 10

9 Rives Basin Yadkin- Pee Dee River Basin
(Note — this must be one of North Caiolina's seventeen designated major river basins The
River Basin map is available at http //h2o enr state nc.us /admm/maps /.)
10. Describe the purpose of the proposed work: To meet the requirements of the settlement
agreement with the DWQ and ACOE for prior violations located on site.
11. List the type of equipment to be used to construct the project: Backhoes, dump trucks
12 Describe the land use in the vicinity of this project- Commercial
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.
Action Id No 199920144 Original individual permit was given EPA and ACOE denial
V. Future Project Plans
Are any additional permit requests anticipated for this project in the future? If so, describe the
anticipated work, and provide justification for the exclusion of this work from the current
application No
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. The applicant must also
provide justification for these impacts in Section VII below All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
Page 3 of 10

plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a
delineation map, whether of not impacts aie proposed to these systems Wetland and stream
evaluation and delineation foiins should be included as appropriate Photographs may be
included at the applicant's discietion 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 Wetland Impacts
Wetland Impact
Site Number
(indicate on ma)
Type of Impact*
Alea of
Impact
(acres)
Located within
100 -yeat Floodplam **
(es /no)
Distance to
Nearest Stream
(linear feet)
Type of Wetland * **
._ ..A ..,..
* List each impact separately and identify temporary impacts impacts include, out are nor iiiinreu w ,ncluanizeu c car—g, v ad—r. .....
excavation, flooding, ditchmg/dramage, etc Fot darns, separately list impacts due to both structure and flooding
** 100 -Year floodplams are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA- approved local floodpaan snaps Maps are available through the FEMA Map Service Center at 1- 800 - 358 -9616, or
online at http / /www fema gov
* ** List a wetland type that best describes wetland to be impacted (e g , freshwater /saltwater marsh, forested wetland, beaver pond,
Carolina Bay, bog, etc)
List the total acreage (estimated) of existing wetlands on the property:
Total area of wetland impact proposed:
2 Stream Impacts, including all intermittent and perennial streams
Stream Impact
Site Number
(indicate on ma
Type of Impact*
Length of
Impact
linear feet
Stream Name **
Average Width
of Stream
Before Impact
Perennial or
Intermittent?
(please s eci )
* List each impact separately and identity temporary impacts impacts mciude, our are nor rrnurcu w U11 V616 auu a.350cia C...y -.Qy,
dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss /gam),
stabilization activities (cement wall, rip -rap, crib wall, gabions, etc ), excavation, ditching/straightening, etc If stream relocation is
proposed, plans and profiles showing the linear footpnnt for both the original and relocated streams must be included
Page 4 of 10

** Stream names can be found on USGS topographic maps If a stream has no name, list as UT (umiained tributary) to the nearest
downstream named stream into which it flows USGS maps are available through the USGS at 1- 800 - 358 -9616, or online at
www uses gov Several internet sites also allow direct download and printing of USGS maps (e g , www topozone coin,
www mgpguest com, etc )
Cumulative impacts (linear distance in feet) to all streams on site
Open Water Impacts, including Lakes, Ponds, Estuaiies, Sounds, Atlantic Ocean and any
other Watei of the U S
Open Watei Impact
Site Number
indicate on ma)
Type of Impact *
At ea of
Impact
(acres)
Name of Waterbody
(if applicable)
Type of Waterbody
lake, pond, estuary, sound,
bay, ocean, etc )
* List each impact separately and identify temporary impacts impacts incivae, out are ROL 1111ULUU Lu 1111, vAaavauvu, ulcusu=s,
flooding, drainage, bulkheads, etc
4 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 ) -
Proposed use or purpose of pond (e g, livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.).
Size of watershed draining to pond: Expected pond surface area:
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.
Page 5 of 10

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 March 9, 2000, mitigation will be 1equued 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 NCWRP 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• //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. `1
This proiect has two phases of compensatory mitigation. The first is to remove 650
linear feet of culvert located in Leak Fork Creek to lessen the culverts length to 500 feet 30
or less. The second phase is to create 1250 feet of stream that begins where the
unnamed tributary meets the western property. oundary. This stream will meander' Sti
north and east until reaching Leak Fork Creeks Attached a copy of the latest draft
mitigation plan which has been given DWO and ACOE approval.
(S ��C'47 v-e
Page 6 of 10

2 Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program ( NCWRP) with the NCWRP's written agreement Check the box indicating that
you would like to pay into the NCWRP Please note that payment into the NCWRP must be
reviewed and approved before it can be used to satisfy mitigation requirements. Applicants
will be notified early in the review process by the 401 /Wetlands Unit if payment into the
NCWRP is available as an option For additional information regarding the application
process for the NCWRP, check the NCWRP websrte at http //h2o enr state nc us /wrp /index htm If
use of the NCWRP is proposed, please check the appropriate box on page three and provide
the following information:
Amount of stream mitigation requested (linear feet).
Amount of buffer mitigation requested (square feet)
Amount of Riparian wetland mitigation requested (acres)
Amount of Non - riparian wetland mitigation requested (acres)
Amount of Coastal wetland mitigation requested (acres)-
IX. Environmental Documentation (DWQ Only)
Does the project involve an expenditure of public funds of the use of public (federal/state /local)
land9
Yes ❑ No
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)9
Note- If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at (919) 733 -5083 to review current thresholds for environmental documentation
Yes ❑ No ❑
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 (DWQ Only)
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.
Will the project impact protected riparian buffers identified within 15A NCAC 2B 0233
(Meuse), 15A NCAC 2B .0259 (Tar - Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water Supply Buffer Requirements), or other (please identify )9
Yes ❑ No M If you answered "yes ", provide the following information:
Page 7 of 10

Identify the square feet and acreage of impact to each zone of the riparian buffers If buffet
mitigation is requited calculate the required amount of mitigation by applying the buffer
multipliers.
Zone*
Impact
(square feet
Multiplier
Required
Mitigation
1
3
2
15
Total
* Zone 1 extends out 30 feet perpendicular from near oanx of cnannei, t,uiie / UALCHUb All
additional 20 feet from the edge of Zone 1
If buffer ntigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 2B .0242 or 0260.
XI. Stormwater (DWQ Only)
Describe impervious acreage (both 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
XH. Sewage Disposal (DWQ Only)
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
XHL Violations (DWQ Only)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules?
Yes ® No ❑
Is this an after- the -fact permit application9
Yes ® No ❑
Page 8of10

XIV. Other Circumstances (Optional):
It is the applicant's iesponsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. Howevei, an applicant may
choose to list constiaints 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).
This project is designed to follow time guidelines set forth in previous meetings and outlined in
the enclosed settlement agreement document file no. 01 HER 1378.
9/r3/1
Appli/Agent' Signature Law
(Agent's signature is valid only if an authorization letter from the applicant is provided )
d
US Army Corps Of Engineers Field Offices and County Coverage
Asheville Regulatory Field Office
Alexander
Cherokee
Iredell
Mitchell
US Army Corps of Engineers
Avery
Clay
Jackson
Polk
151 Patton Avenue
Buncombe
Cleveland
Lincoln
Rowan
Room 208
Buike
Gaston
Macon
Rutherford
Asheville, NC 28801 -5006
Cabarius
Graham
Madison
Stanley
Telephone [phone]
Caldwell
Haywood
McDowell
Swam
Fax [phone]
Catawba
Henderson
Mecklenburg
Transylvania
Raleigh Regulatory Field Office
Alamance
Durham
Johnston
Rockingham
US Army Corps Of Engineers
Alleghany
Edgecombe
Lee
Stokes
6508 Falls of the Neuse Road
Ashe
Franklin
Nash
Surry
Suite 120
Caswell
Forsyth
Northampton
Vance
Raleigh, NC 27615
Chatham
Granville
Orange
Wake
Telephone [phone]
Davidson
Guilford
Person
Warren
Fax [phone]
Davie
Halifax
Randolph
Wilkes
Washington Regulatory Field Office
Beaufort
Curntuck
Jones
US Army Corps Of Engineers
Bertie
Dare
Lenoir
Post Office Box 1000
Camden
Gates
Martin
Washington, NC 27889 -1000
Carteret*
Green
Pamlico
Telephone [phone]
Chowan
Hertford
Pasquotank
Fax [phone]
Ciaven
Hyde
Perqunmans
Wilmington Regulatory Field Office
US Army Corps Of Engineers
Post Office Box 1890
Wilmington, NC 28402 -1890
Telephone [phone]
Anson
Duplm
Onslow
Bladen
Harnett
Pender
Brunswick
Hoke
Richmond
Carteret
Montgomery
Robeson
Columbus
Moore
Sampson
Page 9 of 10
Pitt
Tyrrell
Washington
Wayne
Union
Watauga
Yancey
Wilson
Yadkin
*Cioatan National Forest Only

Fax [phone]
US Fis
US Fish and Wildlife Service
Raleigh Field Office
Post Office Box 33726
Raleigh, NC 27636 -3726
Telephone [phone]
Division of Water Quality
401 Wetlands Unit
1650 Marl Service Center
Raleigh, NC 27699 -1650
Telephone [phone]
Fax [phone]
Cumberland New Hanover Scotland
h and Wildlife Service / National N
US Fish and Wildlife Service
Asheville Field Office
160 Zrilrcoa Street
Asheville, NC 28801
Telephone [phone]
arine Fisheries Service
National Marine Fisheries Service
Habitat Conservation Division
Prvers Island
Beaufort, NC 28516
Telephone [phone]
North Carolina State Agencies
Division of Water Quality
Wetlands Restoration Program
1619 Marl Service Center
Raleigh, NC 27699 -1619
Telephone [phone]
Fax [phone]
CAMA and NC Coastal Counties
State Historic Preservation Office
Department Of Cultural Resources
4617 Marl Service Center
Raleigh, NC 27699 -4617
Telephone [phone]
Fax [phone]
Division of Coastal Management
Beaufort
Chowan
Hertford
Pasquotank
1638 Marl Service Center
Bertre
Craven
Hyde
Pender
Raleigh, NC 27699 -1638
Brunswick
Currrtuck
New Hanover
Perqurmans
Telephone [phone]
Camden
Dare
Onslow
Tyrrell
Fax [phone]
Carteret
Gates
Pamlico
Washington
NCWRC and NC Trout Counties
Western Piedmont Region Coordinator
Alleghany
Caldwell
Watauga
3855 Idlewrld Road
Ashe
Mitchell
Wilkes
Kernersvrlle, NC 27284 -9180
Avery
Stokes
Telephone [phone]
Burke
Surry
Mountain Region Coordinator
Buncombe
Henderson
Polk
20830 Great Smoky Mtn Expressway
Cherokee
Jackson
Rutherford
Waynesville, NC 28786
Clay
Macon
Swam
Telephone [phone]
Graham
Madison
Transylvania
Fax [phone]
Haywood
McDowell
Yancey
Page 10 of 10

APPENDIX 2
MITIGATION PLAN
MITCHELL & ASSOCIATES

Mitchell anyV 3 As - opiates, Inc.
ENVIRONME L - ,dONSkULTANTS
113 West 3rd St • Greenville, N C. 27858,4 252 76214 77 • Fax [phone]
[e-mail]
Proposed Monitoring Plan
Prepared for:
Parker Manufacturing, Inc
and
PTR, INC.
Post Office Box 1037
Kernersville, N.C. 27285
Prepared by:
Jennifer Burbank
Mitchell & Associates, Inc
3973 B Market Street
Wilmington, NC 28403
May 29, 2001
Revised December 7, 2001

1.01 INTRODUCTION
Mitchell & Associates, Inc , on behalf of Rocky Carter, has undertaken the project of creating a
mitigation plan for all stream impacts that have occurred on the property located northwest of
Winston Salem, Forsyth County, North Carolina (Appendix 1, map la and lb ) The mitigation
plan includes minimizing impacts to Leak Fork Creek to less than 500 linear feet, and relocating
the impacted unnamed tributary to the back of the property Rosgen steam restoration techniques
are to be used, as outlined in the following plan ( Rosgen 1996) Restoration of the impacted
streams will be described in this report and will adhere to the regulations of the U S Army Corps
of Engineers (USACOE) This mitigation plan, when implemented, will effectively enhance and
restore existing streams on the project site as well as improve the existing downstream water
quality of Leak Fork Creek
1.1 Site Description
The property is located on the west side of Patterson Avenue and approximately 1400 feet north
of the intersection of Motor Road in Forsyth County, Winston Salem, North Carolina (Map2)
The site is bounded by route 52 and a Duke Power Right of Way (ROW) located on the west
side Leak Fork Creek is a shallow tributary that lies within the valley parallel to Patterson
Avenue on the property's west side The creek has an average bank to bank stream width of 20
feet, has a north directional flow, and shows channelization further downstream Evidence of
rapid erosion can be seen in several places along the creek banks, and silt fences were placed in a
few areas to help reduce the erosion presently taking place Green algae (family Chlorophyta)
was found growing throughout the bottom of the creek The surrounding area primarily consists
of patches of woody vegetation, numerous grasses, and small to medium rocks Trash material
was observed along the creek banks as well as within the water A sewer line runs parallel to
Leak Fork Creek and there is evidence that creek flow was altered due to the placement of the
sewer line The actual site itself has been graded, filled, and is covered with gravel up to its
boundaries
1.2 Soil Series Description
The soils located on the property are from the Wehadkee Series and Pacelot Series ( Appendix
2) The Pacelot Series consists of Pacelot fine sandy loam and clay loam and can typically be
found on slopes from 10 to 45 percent These soils are well drained with moderately slow
infiltration and rapid runoff The Wehadkee Series, in particular Wehadkee loam, is classified as
a hydric soil and characterized as being poorly drained and is located on the flood plain of
streams Infiltration is moderate and surface runoff is slow These soils are also subject to
frequent flooding for brief periods of time and can be found on 0 to 2 percent slopes (SCS 1976)
1

1.3 Vegetative description
Due to the entire site being covered with gravel vegetative data was gathered from immediately
north and south or the property The overstory consisted of Fraxinus pennsylvanica (green ash),
Populus deltoides (eastern cottonwood), Acer rubrum (red maple), Quercus nigra (water oak),
Quecus phellos (willow oak), Quercus alba (white oak), Pinus taeda (loblooly pine),
Liquadambar styraczflua (sweetgum), Platanus occidentahs ( sycamore), and Liriodendron
tulipifera (yellow poplar) The understory vegetation consisted of native grasses, Eupatorium
cappillifolium (dog fennel), Rosa sp (Wild rose), andPhytolacca americana (pokeweed)
2.0 PROPOSED MITIGATION PLAN
The following proposed mitigation option was introduced by the U S Army Corps of Engineers
to re- establish stream areas on -site and to resolve enforcement matters This mitigation plan
involves removing a portion of the culvert located in Leak Fork Creek and restoring the area to
natural conditions In addition, our client will be required to relocate the impacted unnamed
tributary to the back of the property using approved Rosgen techniques Rosgen techniques
involve analyzing stream characteristics including geomorphic, chemical, biological processes
and there functions Once this data is collected, the new tributary will be created for optimum
function
2.1 Mitigation Procedure
Mitchell & Associates, Inc , has developed the following mitigation plan to resolve the
grevi usly mentioned enforcement matters Our client will be required to minimize the present
63 mear feet of i acts to Leak Fork Creek to less than 500 linear feet This will require
approximatetyl'30 near feet of the creek to be opened, a new natural path of flow established,
the creek bank - established, and the placement of vegetation and root wads along the stream
banks for stabilization and erosion control The second component of the mitigation plan is
related to the impacts associated with the filling of the unnamed tributary previously located on
site This phase begins with redirecting the new tributary, presently ceasing at the rear of the
property, east of Y 52 along the perimeter of the project site This redirection will create
approximately 150 eet of meandering stream which will connect with Leak Fork Creek
Redirecting the s ream will provide the streamflow with a cleaner bed, as opposed to the original
which was littered with trash Detailed below is the methodology and data associated with
implementing this mitigation plan
2

2.11. Culvert Removal and Stream Restoration
The culvert located in Leak fork Creek is presently approximately 630 linear feet in length and
begins on the Northern property boundary and ends on the southern property boundary (pictures
12 and 13) This culvert consists of two large I P pipes that have provided adequate space foi
high stream flow A portion of the culvert (130 ft ) at the southern property boundary end is to
be removed, and subsequently this area of stream will be restored to its previous natural
conditions
Leak Fork Creek can be characterized as a G5 type stream that is undergoing degradation and
widening This is characterized by the high width to depth ratio and the presence of undercutting
and sloughing of the banks both upstream and downstream of the culverts The banks are
primarily being stabilized by grass vegetation, litter consisting of metal, cinder blocks and other
debris, shrubs and root material from overstory trees The erosion is significant where meanders
are present, with undercutting on the outer portion and sloughing on the inner portion The width
of the channel ranges between 8 and 12 feet while the bankful width is approximately 18 -26 feet
Water depth ranges from 2 inches to 16 inches, varying according to the presents of pools and
rifles
Reference Reach data was collected immediately upstream from the project site to gather data for
restoring the project site Stream characteristics immediately upstream where the most desirable
to use for a reference reach because characteristics were almost identical We felt they were
sufficient for this phase of the project since our goal was not to restore a complete stream reach
A permanent bench mark was established, as noted on Sheet C -2 (Cape Fear Engineering)
Attached (Appendix 3a) is our worksheet of morphological characteristics for the reference
reach, longitudinal and cross - sectional photographs, pebble count data, hydrological analysis, and
site maps which include stream morphology
The previously culverted section of the stream will be restored to a natural state with measures
being undertaken to prevent subsequent erosion Heavy equipment will be used to remove fill
material and the two pipes in the culvert, during which erosion control measures will be
undertaken to avoid contamination to the creek This will be in the form of silt fences placed
around the construction areas If necessary the flow of leak Fork Creek will be pumped around
the work area to avoid contamination of the waters
The creek bank will be sloped at a 2 1 angle This will mimic healthy stream characteristics and
prevent further erosion to downstream areas The 2 1 slope offers optimal stability with less
need for increased stabilization methods (MRCS 1998) Bank tops will be given a rounded edge
to form a gradual transition between upland and slope to allow for suitable plant growth.
Excelsior mat will be used to cover bank slopes for stability and native riparian vegetation will
be planted at two foot intervals This vegetation live staked or planted on the banks will consist
of Alix nigra, Agnus serrulate, Calycanthus floridus, Ilex verticillata, Celtis laevigata,
Xanthorhiza simplicissima, Rhododendron viscosum, Quercus phellos In addition to the above
3

vegetation on bank tops and within the buffer zone Euonymous americanus, Itea virginica,
Rhododendron arborescens, Betula nigra, Caprinus carohniana, Crataegus marshals, and
Quercus nigra will also be planted Creek bed material is available on site and will be consistent
with the present bed material which ranges from silt/clay to boulders The Cape Fear
Engineering design plans contain work plans and maps of what is to be accomplished
2.12 Stream Creation
An unnamed tributary once entered the property from the west from a culvert that extends under
Hwy 52 This tributary presently descends approximately 200 feet through a gully from HWY
52 and ends at the property line This stream can be classified as a type B stream, is narrow ( 1 -2
feet wide), and shallow with a depth of 1 foot The banks of this tributary are low and at an
approximate 1 5 slope The southern bank of the tributary has an associated flood plain area
where the northerly side of the stream buts up against a steep gradient with a 1 1 5 slope It is
bordered by grassy riparian vegetation and shrubs in addition to oaks and maples Bed material
consists of silt/clay through cobbles
Due to the short lenth of this unnamed tributary, our reference reach is the 201 feet of stream
presently in existence A permanent benchmark has been established and all data has been
gathered from this area Attatched (Appendix 4a), is our reference reach data for the unnamed
tributary and corresponding photographs
Our goal is to create a new path for this tributary that will take an approximately ninety degree
turn north at the property line and meander (1150ft) north -east until falling out in a natural area
before reaching Leak Fork Creek Because much of the flow volume is associated with rain fall
runoff that comes from HWY 52, the natural area will benefit pollution removal before waters
reach Leak Fork Creek The tributary will have an average depth of 6 feet and a width of 2 -4
feet with low 2 1 sloped banks The tributary will be located in a 30 foot buffer zone to prevent
contamination and upland runoff from entering
The first step in creating the new tributary is creating a new path of flow Heavy equipment will
be used to dig the new stream path Standard erosion control measures will be undertaken while
work is in progress and vegetative cover is in place In order to create 1150 feet of stream, the
channel will have a high sinousrty as it travels north along the eastern property boundary As the
channel reaches the north eastern corner the tributary will take a westerly turn where the
elevation changes rapidly Here we have created a riff to adjust to the rapid 7 foot loss of
elevation At this point the tributary will have a wide bankful width and an associate flood plain
area for periods of heavy rains This will facilitate pollutant removal from the waters before they
reach Leak fork Creek
Banks are to be graded and rounded off, and the soil slightly compacted for planting Where the
90 degree turn takes place boulders should be placed at the toe of the slope for times of heavy
11

water flow Immediately after the turn a log vane will be placed on the outside bend to keep
water flow to the center of the tributary Please see appendix 4a for a more detailed drawing of
morphological data Live cuttings of willow branches will be staked at 2 foot intervals for
further stabilization Additional riparian planting will take place in the fall for slope
stabilization These plantings will consist of willow oak, green ash, water oak, cottonwood, and
black alder Both the outside bend and the inside will be seeded for erosion control and to
prevent sloughing
Existing vegetation should be retained to the extent feasible, as should woody debris and stumps
In addition to providing habitat and erosion and sediment control, these features provide seed
sources and harbor a variety of microorganisms The same vegetation types will be live staked or
planted within the buffer zone as is being planted along Leak Fork creek, using the same
guidelines and techniques
At section 4 the stream will take a northerly turn and fall off into a natural area until reaching
Leak Fork Creek A berm adjacent to the property line will be constructed to keep water flow
contained on the property Stabilization of the stream in the bend will imitate the methods used
in the section 1, 90 degree turn The naturalized area should not require any additional seeding
or planting since adequate vegetation is already present
2.13 Time Frame and Monitoring
Time Frame of project
Below is an outline of the time frame necessary to complete the restoration and stream creation
project It is our goal to have the 130 foot portion of pipe removed from Leak Fork Creek, bank
slopes laid back properly, and the new channel for the unnamed tributary dug, laid back, and
prepared for planting with in a 45 day time period
The optimum conditions for successful plant installation are when temperature, moisture, and
sunlight are adequate for germination and establishment In the eastern United States these
conditions are met beginning in mid winter to early spring In addition plants should be installed
when dormant for the highest rate of survival To meet these conditions planting should begin in
November to February depending on weather conditions These plants will be acquired from a
local commercial source It is our best estimate that approximately 6,500 plants including willow
oak, green ash, water oak, cottonwood, and black alder will be needed to adequately cover the
lower banks of both the restored section of Leak Fork Creek and the new unnamed tributary
That number is derived from channel length and bank width with a planting every 2 square feet
This total achieves 500 trees per sq acre
5

Monitoring and Success Criteria
Mitchell & Associates will implement a site inspection and monitoring plan to ensure the success
of the project This plan will meet standard procedures for monitoring a project, and include
assurance that the site meets with success criteria for restoration projects
Within 60 days of completion of mitigation site construction, Mitchell & Associates will submit
a report indicating all work completed and will include photographs of completed work, the
stream reference reach, longitudinal profiles and cross sections of reference reaches, vegetation
sample plots with locations, and problems encountered and resolved The location of cross -
sections of reference reaches and vegetative plots are noted on the enclosed map
Follow up inspections will be conducted on a regular basis and documented in the form of data
summaries and field notes Sketches, maps, and photographs will be used to document
vegetation development, channel stability, and structure performance
Vegetation within the buffer zone will be inspected for a period of five years or until success
criteria is met, which ever is the longer period of time Vegetation will be inspected in August or
September of each year after planting, and at a minimum, no one species should exceed 20
percent of the total number of individuals Success criteria will be met if, for each of the first
three years after monitoring, a minimum of 320 trees per acre of the planted species have
survived In years four and five, a minimum of 288 to 260 four year old trees per acre have
survived on the site, and after year five a minimum of 260 five year old trees have survived If
this vegetation criteria is not met, replanting will take place and the five year monitoring period
will begin again Vegetation will also be inspected for the presence of exotic, harmful species
that if detected will be removed Vegetative plots where data is collected will be taken at the 6
areas noted and labeled on the map
Stream banks will be inspected 2 times annually during the first two years after project
completion, and one time annually there after for a period of five years The entire stream
corridor will be inspected to detect areas of erosion or accumulation Inspection of bank and
channel conditions will be conducted during low water conditions to allow for viewing of
complete structures and channel bed changes Photo reference sites (longitudinal photos and
lateral reference photos) will be used and monitoring of the reach's cross - section and
longitudinal profiles Success criteria will be met if, for the period of five years in conjunction
with the vegetation monitoring, the stream bed features and cross - sections remain stable The
stream shall retain its enhanced Rosgen's steam type classification If any problems are
encountered, the stream channel will immediately be restabilized and planted
Benthic Macroinvertebrate Monitoring
Mitchell & Associates Inc , does not have certified personnell on staff to perform sampling
el

procedures, hence Environmetal Sevices Inc, has been contracted to perform sampling Data
collected will be reviewd by Mitchell & Associates and then sent to governing agencies as
required We will also include these results in our annual monitoring reports Benthic
macroinvertebrate monitoring will be conducted prior to stream disturbance, and will be
followed up with three years of biological monitoring starting one year after project completion
Summer is the preferred time for monitoring, hence we will sample in July post project and for a
period of three years thereafter Our first samples, however,were collected on November 20,
2001 dust prior to the start of the project This was necessary due to time constraints and
deadlines associated with the project
The monitoring will be conducted at four locations The first location will be at Leak Fork creek,
on the project site where the culvert is to be removed The second sample site will be taken
immediately upstream of the property where the unnamed tributary meets the property boundary
At this pre - project time the unnamed tributary ceases at the project boundary Post stream
creation the third monitoring site will be located within the center of the newly created unnamed
tributary A fourth monitoring site will be located 500 feet upstream of Leak Fork Creek from
the property line, which is in our reference reach
The Qual -4 collection technique will be employed for sampling for benthic macroinvertebrates
This method is accepted for 1 st and 2nd order streams Four sample types will be collected at
each monitoring area including one kicknet sample, one sweep net sample, one leafpack, and
"visuals" All organisms will be collected and processed
Written reports containing all relevant information including stream appearance, water quality
data, and sample results, facts, and figures will be submitted to the DWQ within 30 days after the
field monitoring takes place. Every effort will be undertaken to meet DWQ standards
The above proposed mitigation plan meets USACOE standards and will in fact improve the
quality of Leak Fork Creek and its associated unnamed tributary
7

Appendix 1
Maps

B5
69 u ggoner Lake
sz
Stanleyville,:
}
oDozier 87
Seward ss;
°��� Bethania
if 3;;;.
A i!!
oCrims Crossroads
r
85 t c;{ ✓� 6
8 Walkertov�n
-�''�, <> Bet a 'ia St i S1te
�lip Pfaftown oValley View Oldtown
o0gburn Station F
10 \ Forest Hills � Montview 1s8 150
°~-�n f ,\ R J Reynolds To �J
� y cco Manufacturing Ctr�J Smith'Reyn
Forsyth Bon Air 311 Talleys Crossi
Y .
Old :T Clubo _ _. Piedmo Pa Guthrie
P � - °� o Kernersville
>Mt Tabor o R2'y pl park eKimbert ark ark Terrace •
had
A
s
o e7o enth Str _ 421
f
_r-
.,
t p « ° �,Rg
/ po Wi ston- Salem
West Highlandso
Haneisrk Greet`°
$off"' "
? Sou Fork 158 G eRenolds'Park �\�\y�`� this
.*Millet Park { ��c,,,_�
Harmony Grove 151 e Pieehnoni Quarry
Hp Hill Park
az1 Amos Cottage Reh�e tlitat xl-Jos 1 Medical Park Hos d
- _ * a4hing n Park Forest Park
ou Side W 1 -
—Qt S fawn '.
;Jonestown }ston View
159 L <� osemont nion Ridge 311 union Cross
.109 J0 —-� PA ..
7,7- 5waimtdwwn ; Teaguetown
r;> uddy Greek 4 52 e 3�
.�.
159 Stroh
® 1998 pamme:.Street Atlas USA
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w --� Hor
31
Wallburg
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17,
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ake

.v a�
,I ao.ano
�I
SEDIMENT FENCE
[K1W —I t >
—���_� � � _ — Iil wMrrw ♦ f w ..r...
� II
CATCH BASIN
GENERAL N9TES, °'� ` ,
254PQSED SITE PLAN t
SCALE 1 - 188 87
SEDIMENT BASIL
\1
1
1
11
\1
11 /
_uai 1�Vwu
Itu w,ar u t
. w tr r,trE no
INTAKE DETAIL.
E TAILY TEiR PAC,
\°\ter
TYPE A DITCH TYPE 8 DITCH TYPE C DITCH DITCH TERMIEpATIDN
GeoSc t Proposed Culvert of Leak Fork Creek &
Redirection of Unnamed Tributary
Forsyth County, North Carolina
Rocky Carter
Lat N 36° 9 638 Long W 80° 15 272

Appendix 2
Soil Series Description

Soil Series Descriptions
Pacelot fine sandy loam, 6 to 10 percent slopes (PaQ
This is a well drained soil found on long, fairly narrow upper side slopes of uplands Infiltration
is moderate and surface runoff is rapid This soil is strongly acid to medium acid throughout
This soil is suitable for broadleaf and needle leaf trees such as Red oak, White Oak, Loblolly
pine Sweet gum, and Yellow poplar
Pacelot clay loam 15 to 45 percent slopes eroded (PcF2)
This is a well drained soil found on long, narrow upland lower side slopes and in rough irregular
shaped areas. The surface layer is yellowish -red to reddish -brown clay loam 3 to 6 inches thick
The subsoil is red to yellowish clay to sandy clay loam 17 to 22 inches thick Infiltration is slow
and surface runoff is very rapid This soil is strongly acid to medium acid throughout This soil
is suitable for broadleaf and needle leaf trees such as Red oak, White oak, loblolly pine White
pine, Sweetgum, and Yellow poplar
Wehadkee Series
This is a nearly level, poorly drained soil found on stream flood plains in long bands.. These
soils formed in recent alluvial deposits. The surface layer is brown loam about 9 inches thick
The subsoil is about 33 inches thick Wehadkee soils are low in natural fertility, permeability is
moderate, and the available water capacity is medium Infiltration is moderate, and surface
runoff is slow These soils are medium acid or slightly acid throughout These soils are suitable
for water- tolerant broadleaf and needle leaf trees such as Green ash, White ash, Cottonwood,
Scarlet oak, Southern red oak, Water oak, Willow oak, Sweetgum, Sycamore, and Yellow poplar

HmD2
Soil series located on Leak Fork Creek site
V
N
PaD
1.
RZA

Appendix 3a
Leak Fork Creek
Reference Reach Data

Lco vi -Fc-) r y) Crete v) "Rc,� 'kiac' j) a
Appendix B Morphological Measurement Table
Variables
Existing
Channel
Proposed
Reach
USGS Station
Reference Reach
1 stream type
i
2 drainage area
C
3 bankfull width
4 bankfull mean depth
+Lip
�
5 width/depth ratio
�l1fl
6 bankfull cross - sectional
area
7 bankfull mean velocity
8 bankfull discharge, cfs
9 bankfull max depth
lQ
I+ 1
� 10 width of flood prone area
i
�
11 entrenchment ratio
+
12 meander length
`T
13 ratio of meander length to
bankfull width
14 Radius of curvature
15 Ratio of radius of curvature
to bankfull width
16 Belt width
17 Meander width ratio
18 Sinuosity (stream
length/valley length)
i
1 �nr�
19 Valle Sloe
Vow—
20 Average slope
21 Pool sloe
O
22 Ratio of pool slope to
average sloe
0
23 Maximum pool depth
``©
1 1 I
24 Ratio of pool depth to
average bankfull depth
I
C
O
25 Pool widthp��
26 Ratio of pool width to
bankfull width
27 Pool to pool spacing
i
28 Ratio of pool to pool
spacing to bankfull width
, (9
j
1 ,
29 Ratio of lowest bank height
to bankfull height (or max
bankfull depth)
!
The lniernol Technical Guide for Stream Work in North Carolina 19

LEAK FORK CREEK WINSTON SALEM, NC 11/6/01
Pebble Count at Reference Reach
J Burbank J Meisenhelder
Wolman pebble count using the Wentworth scale for size classes
Leak fork Creek Reference Reads
Pebble Count
Cumulative % vs. Size (mm)
100
90
80
�a - -- - -- - - - - - -- - - - - -- - --
50 ------ - - - -- - - - - - - - -j - -
40 - - -- - - - r -f - r -- - - - - - -- - -
30 - - - - -- - - -- - - - -- -- -- - - -- -- - - - = - --
size class (mm)
number
— - - - - -- - - - w - -
%
cumulative %
sands
<2
rst 1W C :
36
36
36
2 -4
11
11
47
4 -8
; ;
4
4
51
gravels
8 -16
9
9
60
16 -32
8
8
68
32 -64
---
5
5
73
cobbles
64 -128
9
9
82
128 -256
7
7
89
256 -512
2
2
91
boulders
512 -1024
'—'
5
5
96
1024 -2048
3
3
99
2048 -4096
1
1
100
Leak fork Creek Reference Reads
Pebble Count
Cumulative % vs. Size (mm)
100
90
80
�a - -- - -- - - - - - -- - - - - -- - --
50 ------ - - - -- - - - - - - - -j - -
40 - - -- - - - r -f - r -- - - - - - -- - -
30 - - - - -- - - -- - - - -- -- -- - - -- -- - - - = - --
<2 2-4 4.8 8-16 1632 32-64 62 -128 f28- 256- 522- 1024 2048 -
256 512 1024 2048 4096
Partide Size (mm)
10
— - - - - -- - - - w - -
Q
<2 2-4 4.8 8-16 1632 32-64 62 -128 f28- 256- 522- 1024 2048 -
256 512 1024 2048 4096
Partide Size (mm)

Leak Fork Creek
Station 0 +84 Looking Downstream

Leak Fork Creek
Station 1 +35 Looking Downstream

Leak Fork Creek
Station 1 +50 Looking Downstream

Leak Fork Creek
Station 1 +72 Looking Upstream

Hydrologic Data
for
Leak Fork Creek
* *Data was collected August 1998, immediately prior to culvert insertion.
**Data tpge covers presently culverted section of Leak Fork Creek
And rq erence reach.
l�

IAA iTC�SUN AVE NOf
/lam
/ V
_r
Site map study cross sections
* *data was collected immediately prior to the culvert installation

HEC-RAS Plan Analysis 1 River Leak Fork Creek Reach: 1
.
XN6 ChnI low Area. lop WM Fronde 0 Total h .'SIGI.Elev. . E.G. Slope R� Sta I' Min C
168000
1680.00
-- --
1680.00'
1680D0
1700.00
1700.00
1700.00
1750.00
82890
828.50
82850
829.00
827.00
827.40
826.60
824.60
837.19
835.23
835.73
835.81
835.09
833.97
834.44
835.04
837 621
837.17
836�52
0003631
0.008292.
0.003788
&00-4149-
0.007575
0.005351
-5.86.
11,55
7.38
6,73
324.10
164.80
254.94
297.34
69.97
41.54
57.29
86.35
110.03
0.39i
0.85
0.51
0.49
0.70,
0.78
0.66
0.29
- - 0.44
833.89
834.22
836.44
836.28
835.08
835.09
9.70
240.85
----274.51
833.97
- 9.31
145.92
- _ 833.43
833.16
833-32
834.15
-- 0.009461
0.002259
0.001599
8.25
- 344.66
211.49
829.77
833.36
3.99
661.53
- -- -307.40--,--
1750.00
825.00
832.63
831.28
833.12
- 6.37
-- 4.94-61
-- 216.66
1750.00
1750.00
-
1750DO�
17 . 50.00
1750.00
1750.00
824.20
821.60
--- 823D-0 -
82300
831.92
832.26
- ----- 8-3-1-.8--6
831.66
830.76
831.40
832.86
832.48
83,234
832.15
83132
831.13
0.004041
0.001628 -
0.005.106
0.003693
0.0.05251
8.39
-377.07----
183.04
0.62
- 0.29
0.50
0.49
058
----0.53
0.59
0.41
0.49
0.78
0.69
829.05
4.58
6.09
5-77
745.48
------ - -- 395 24880
.64
218.58
39.38
---
829.62
516.05
393.10
- 222:63
381.62
320-38
511.59
830.01
828.76
7.86
821.90
830.38
829.41
0.005895
7.65
157.90
1750.00
1750.00
1750.00
1750.00
1750.00
822.50
829.70
829.77
829.35
828.11
�,
1 W
828.70
830-62
830.23
0.005228
0.002181
000 - 3515
6�012086
0.007442
8.10
133.22
170.38
822.60
821.80
821,401
821 40
827.36
6.05
827.25
827.98
83003
829�72
829
----- - - 6.8 - 1
10.48
9.12
344.81
219-72
321.53
142.95 .95
105.41
179.60
1 827.98

1 in Horiz = 100 ft 1 in Vert = 4 ft
Patterson2PropcisedCMPs
Plan3 8/21/98
RS
16
08
055
0
Legend
4
5
EG PF#1
840
WS PF#1
'F#1
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•
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835 -
-
LU 830
820---
0 200
400
600
Station (ft)
1 in Horiz = 100 ft 1 in Vert = 4 ft

Patterson St ream Reolcation Plan3 8/12/98
Downstream End RS = 1
09 - 04 'i� — - — 06 -
840 - — -
835 i - - -- - -- - -- - -- - -- —
c
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WS PF #1
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Patterson Stream Reolcation
Plan3 8/12/98
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Patterson Stream Reolcation Plan3 8/12/98
RS =3
04 09 r
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0 200 400 600
Station (ft)
Legend !I
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i
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PattersonStreamReolcation Plan3 8/12/98
RS =4
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835
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8204---- - -- -- - - -- - % -- -- -- I
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200 400 - 800 -
Station (ft)
1 in Honz = 100 ft 1 in Vert = 4 ft
i

1
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100 ft 1inVert =4ft
Patterson Stream Reolcation Plan3 8/12/98
RS =5
F eN
-- --+ - -- -- — - - --
-i -• - -• - - - - -•-
400
Station (ft)
M
Legend
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WS PF #1
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—.-
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•
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1 in Hortz = 100 ft 1 in Vert = 4 ft
PattersonStreamReolcation
Plan3 8/12/98
RS
=6
09 04&','
055
Legend
EG PF#1
840
WS PF#1
Crit PF#1
Ground
Ban,, Sta
835
2
825
820-
0 200
400
600
Station (ft)
1 in Hortz = 100 ft 1 in Vert = 4 ft

1 840
1 835-1
c
c
0
m
v
`-1 8301
825 1
PattersOn Stream Reolcation Plan3 8/12/98
RS =7
04 < -- - -- 1 — - - - -»
I
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Legend
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-- --- -- -- —
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8401---- - -
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c
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1 in Honz = 100 ft 1 in Vert = 4 ft
PattersonStreamReolcation Plan3 8/12/98
RS =8
04 ric , U
rvv 600 -, -- --
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Legend
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•
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k _
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1 in HonZ = 100 ft 1 in Vert = 4 ft
Patterson StreamReolcation Plan3 8/12/98
IRS =9
- - c 045 - -J' - 09 — �I
200
400
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600
Legend
EG PF #1
-- WS PF #1
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840 i - - -
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PattersonStreamReolcation Plan3 8/12/98
RS= 10
04*- 09—>i
0
8
0
w 830 - - -- - - - - - - - -- - - - - --
8251— - - - - -- -- - - I --
I
820 1
0
1 in Honz = 100 ft 1 in Vert = 4 ft
- -- f - --
200 400
Station (ft)
600
Legend �
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WS PF #1
Cnt PF #1
Ground
•
Bank Sta

- - - - - 09 -
8401-- - -- -
835 + - -- - - -- -- --
PattersonStreamReolcation Plan3 8/12/98
RS =11
- -r, 033* 09 -H ,
c ,
0
io
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w 830 -- - •�- - - --
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Plan3 8/12/98
RS
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840 1 -
835
Patterson Stream Reolcation Plan3 8/12/98
at 54 pipe RS = 13
09 - i ft 09 — -)-� 045 )+(07)i ,
0
m
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w 830 - - - -- - -
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1 in Honz = 100 ft 1 in Vert = 4 ft
200
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Cnt PF #1
Ground
•
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PattersonStreamReolcation Plan3 8/12/98
RS =14
-- 09 - - rf< 04 ->k 09 H4045f< 065 �
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835 - -- - - — -- -- --
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I I
i
820
0 200 400
Station (ft)
1 in Honz = 100 ft 1 in Vert = 4 ft
m
Legend
EG PF #1
- WS PF #1
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1 In Honz = 100 ft 1 In Vert = 4 ft
PattersonStreamReolcation
Plan3 8/12/98
RS =15
09 - z}< 04 *< 03
Ht069i
I
Legend
- -- -
—
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—
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1 In Honz = 100 ft 1 In Vert = 4 ft

8404- - -
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08 It' 045 3-(04f< 055 RS = 16
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PattersonStreamReolcatlon Plan3 8/12/98
OS 045 055
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0 200 400 ,
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RS =19
I
820- �- --- � - --- -- --
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600
1 in Honz = 100 ft 1 in Vert = 4 ft Station (ft)
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Patterson St ream Reolcation Plan3 8/12/98
045 )1 055 1 Upstream End RS = 20
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s
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EnviroMapper
� E rA Index of
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3�ot
Page 1 of 1
Mapping Features
r ■ Discharges to water
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C' Supelfund sites
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C F ■ To)ricc releases
'
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r F 20 Indian Lands
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color 3: Sources of Drinking Water
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urrent W Data Layer:
9 � '"`�^ 0: Overall Watershed
`f Characterization
WaWshed Classdicatkm
-Eetler Water Ouslity - Low
Vulnerabdity
4etter Water Quality - Nigh
VuUmabdity
Less Serious Water Qualiq
VulnsrabRity
Probil"s - Low
( Lass Serious Mater Quality
1 -a ProbkK s - FRigh Vulnerability
Uwe Serious Water Quality
Problems - Low Vulnerability
®ltore Serious Water Quality
Problems - High Vulnerability
L3 Data Sufficiency Thresitow Not filet
Redraw Map
1 mi across. Tips: Click on the map or choose another option.
O
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EnviroMapper
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Page 1 of 1
Mapping Features
r
F ■ Discharges to water
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--
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v
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y r..
� •Air releases
STORET(IWI -3C)
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C Fw- , �` Streets
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IWI Data 0: Overall Watershed Characterization
i•eStreams
F_I Indian Larrds
Layer 1: Designated Use Attainment
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color 3: Sources of Drinking Water
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C' F O Counties
O Watershed
urrad IWI Data Layer:
FTJ 11: Urban Runoff Index
Wbara ftaw d Fotmtial - 1990
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Appendix 4a
Reference Reach Data
for
Unnamed tributary

1
I'
i l
i
f-CUCV-)
Appendix B
v n r)3nc,d Tr-,b,
Morphological Measurement Table
Variables
Existing
Proposed
USGS Station
Reference Reach
Channel
Reach
_
1 stream type
2 drainage area
3 bankfull `width
LD
4 bankfull mean depth
o
5 width/depth ratio
6 bankfull cross - sectional
area
-Acal^,
7 bankfull mean velocity"
8 bankfull discharge, cfs
9 bankfull max depth
�.
10 width of flood prone area
J
IF 11 entrenchment ratio
12 meander length
13 ratio of meander length to
bankfull width
.
s
EI 14 Radius of curvature
15 Ratio of radius of curvature
to bankfull width
16 Belt width
17 Meander width ratio
18 Sinuosity (stream
length/valley length)
19 Valley Sloe
, nP,
F�
t n.,-
j20 Average slope
21 Pool sloe
(7)
22 Ratio of pool slope to
average sloe
23 Maximum pool depth
, [�
24 Ratio of pool depth to
average bankfull depth
25 Pool width
S ,
26 Ratio of pool width to
bankfull width
27 Pool to pool spacing
28 Ratio of pool to pool
spacing to bankfull width
29 Ratio of lowest bank height
to bankfull height (or max
bankfull depth)
The Internal Technical Guide for Stream Work in North Carolina
19
I,
ar4

UNNAMED TRIBUTARY OFLEAK FORK CREEK 1 11/6/01
WINSTON SALEM, NC
Pebble Count at Reference Reach
J. Burbank J.Meisenhelder
Wolman pebble count using the Wentworth scale for size classes
Unnamed Tributary of Leak Fork Creek
Reference Reach
Pebble Count
Cumulative % vs. Size (mm)
size class (mm) number
%
cumulative %
sands
<2
56
55
55
2 -4
12
12
67
4 -8
5
5
72
gravels
8 -16
12
12
83
16 -32
7
7
90
32 -64
0
0
90
cobbles
64 -128
8
8
98
128 -256
1
1
99
256 -512
1
1
100
boulders
512 -1024
0
0
100
1024 -2048
0
0
100
2048 -4096
0
0
100
Unnamed Tributary of Leak Fork Creek
Reference Reach
Pebble Count
Cumulative % vs. Size (mm)

Unnamed Tributary
Station 0 +50 Looking Downstream

Unnamed Tributary
Station 1 +35 Looking Upstream

Unnamed Tributary
Station 1 +50 Looking Upstream at Pool

Unnamed Tributary
71,
Highway 52 Culvert
V,
Highway 52 Culvert

A
Appendix 5
Benthic Macroinvertebrate
Monitoring Data

0
FROtl
Env i ronmerts 1 perk. i ces, inc. PHO14E NO. ' 919 e33 0079
ENVIRONMENTAL SERVICES, INC
CONTRACT FOR SERVICES
ESI PROJECT NO. E1101-146
Nov. 1E 2001 0�;.21PM P3
The following Contract for Services is an agreement between Environruental Services, Inc,
i ESI} and Mitchell & associates (client) with the terms specified herein Client agrees that the
companynndividual signing this agreement has the ability to compensate ESI for the work
described herein whether or not the proposed project materializes ESI agrees to perform the
following tasks for the associated f'ee
Project Name: Benthic Data Collection, Leak Fork Creek, Winston Salem Site.
Project Location. Forsyth County, NC,
SCOPE OF SERVICES
Task 1.
FEE
Fixed Fee: $1600.00
Benthic Data Collection, leak Fork Creek, Wmston Salem, ACC
ESI will perform four individual Qual 4 benthlc macro invertebrate collections as outlasted
b3 the North Carolina Division of Water Quality, in stream reaches indicated by the
client on Leak Fork Creek located in Forsyth County. North Carolina ESI will be
responsible for obtaining the services of a certified laboratory that will be used to the
identificauon of all macronlvertebrates
ESI utll provide basic statistical interpretation of data to include species richness and
diversity comparisons between reference and non reference site locations
ESI will prepare a summary report of our findings

ViS I antis
16 NoN,e- , ,er ?OUl
PF,ge 2 of 2
PHnt tE tdF-' . 919 633 007cp
EN'YIRONMENTAL SERVICES INC
lE 21001 n-2'--1='M P4
We xvill work on the bas» described above We are prepared to proceed upon receipt of the
3irzcd contrast
TERMS:
L- n,�iron-mental Services Inc , wl�i complete the work described above: wiless delayed by client s
request, lack of information, or inteivening factors beyond our control
Client assures ESI that A has permission :o work on the subject property and will advise I:S1 of
proper procedures for accessing subpeci property.
EnVULTunental Seri ices, inc.. «all maintain a minimum $1,000.000 eml'r and omissions
tn,tirance arid $1,000,0100 liability insurance for the duration of the pruned
Client will prk)t'ide ESI wim any specidl billing fora hats of consideration with the sigtnej
contract
Billins; is done monthly Paymcnt is due immediately upon receipt of'the tnvoicc, after 30 datis
Ole. diem agrees to pay 1 5 percen* late fce per month or portion thereof on unpaid balances
l Braid balances after 60 days from the dale of Chic. invoice may result in work Stoppage until
ON; Mduz �iccount6 are iesolveo
f,.iltnre to pay within 60 days fiotn tlz.- date of invoice vn l be considered b} -SI to be a breach
of contract and ES1 may cease work and A,thhold all work product immediately without Ptrialt}
from the client
'any disputes regarding payment for services shall be resolved in a court in the eowity of the ESI
office responsible for tt'.e work Client agrees to pay all legal fees and other collection costs
incurred by Ens ironrnentaJ Services Iri. , to collect unpaid im oiees
raSK ACCEPT D' ENVIRUiilMENTAL SEI2 ' C'ES, L' ' �-
SIGNATURE L SIGNATURE
NAME ,,PRINT)`
F IR:yi
TITLE
DATE.
NAMI: (PR1N"() Richaid G Hatmon
FIRM' Environmental _Rt:r% ices, Inc.
TITLE._ Vice President
DATE' A 2L

,pi
APPENDIX 3
SETTLEMENT AGREEMENT

15 23 2001 10 10 FAA 919 789 1075 t.POYNER R SPRUILU 10002
STATE OF NORTH CAROLII\TA
COUNTY FORSYTH
FTR, Inc,
V
Peutioners,
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT ENT AND NATURA]✓
RESOURCES, DIVISION OF WATER
QUALITY,
Respondent.
IN THE QFFICE OF
ADMINISTRATIVE HEARINGS
FILE NO 01 EHR 1 378
SETTLEMENT AGREEMENT
SETTLEMENT AGREEMENT
The North Carolina Department of Environment and Natural Resources ("DENR "),
Respondent, and PTR, Inc, and Parker Manufacturing, Inc, ( "Petitioners "), jointly and
severally hereby enter into thus Settlement Agreement ( "Agreement ") Pursuant to N C Gen
Stat § 15OB- 31(b), in older to amicably resolve the above captioned matter. Pursuant to N C
Gen Stat 143 -215 6A et seq , this matter arose out of the August 22, 2000, assessment by the
Division of Water Quality ( "DWQ') in the total amount of ten thousand five hundred, ninety -two
dollars and twenty-eight cents ($10,592,28), for alleged violations of 15A NCAC 2B 0211(2)
and 15A NCAC 2H 0501(b)
matter
DENR and the Petitioners have reached the following settlement agreement in this
1 The Petitioners will pay a total of six thousand five hundred, and ninety -mo
dollars and twenty -eight ($6,592 28), including the costs of enforcement, ( "Setilement Amount ")

u ;_ 212001 11) lu FkX 919 763 loll iPOFNER R SPRUILLi zoo3
to DENR In the full and complete settlement of the case set out above. The Settlement Amount
shall be made in a ore lump sum pay cent upon execution of tills agreement by the Petitioners
The payment shall be by check made payable to the North Carolina Department
of Environment and Natural Resources (or to "DENR ") at the following address:
Ms Sharlene Moses
Attorney General's Office
Environmental Protection Division
Post Office Box 629
Raleigh, NC 27602 -0629
Further conditions include the following.
A. The Petitioners will implement to the satisfaction of the U S Army Corps
of Engineers (COE) the attached Monitoring and Stream Mitigation Plan prepared
by Mitchell and Associates, (subject to DWQ's modifications [see D below] and
any modification subsequently approved by the COE ) This plan has been
reviewed and approved by the COE,
B Storm water management - the petitioners shall provide a final, written
Storm water management plan that must be approved in writing by NC DENR by
October 1, 2001 The Storm water management plan must include plans and
specificataons for Storm water management facilities (facilities), designed to
remove 85% of the total suspended solids (TSS) according to the most recent
,veibion of DENR's Storm watez Best Management Practices Manual (Manual )
These facilities must be designed to treat the runoff from the entire project,
unless otherwise explicitly approved by DWQ. Also, the facilities, as approved by
DWQ's wetlands unit, shall be constructed and operational, and the Storm water
management plan, as approved by DWQ's wetlands unit, shall be implemented
by December 1, 2001.
The structural Storm watez practices as approved by DWQ's wetlands unit
as well as drainage patterns must be maintained as long as required by the North
Carolina General Statutes and/or applicable rules and regulations. No changes to
the structural Storm water practices shall be made without written authorization
from DWQ Petitioners may design a wetland at the bottom of the relocated
stream as an extended detention wetlands as described in the above manual If the
runoff from the project cannot be added to the above wetlands, bioretention areas.

(18 27 2001 lu 10 FAX [phone] a.POYNER & SPRUILU zoo4
consistent with the Manual designs, must be provided to treat the runoff from the
areas not draining to the wetlands
C Michell and Associates, Inc. Stream mitigation plan The May 29, 2001
proposed mitigation plan. with a monitoring supplement dated rune 7, 2001,
prepared by Mitchell and Associates, Inc states that impacts to Leak Fork Creek
will be reduced to less than 500 feet Accordingly, approximately 350 feet of
culvert removal and stream restoration is required from Leak Fork Creek such that
the total culverted length of Leak Fork Creek is no more thwi 500 linear feet
This reopening of Leek Fork Creek must be completed by November 1,
2001, and the site stabilized according to the plan referenced above This area
must be replanted in woody vegetation (preferably trees) to a width which is as
wide as reasonably practicable but should not be less than fifteen feet from the
bankfull edge This stream restoration shall be designed and maintained according
to the provisions in DENIt's "Internal Technical Guide for Stream Woik in North
Carolina (April 2001, Version 3 0) If the stream restoration outlined in the reports
by Mitchell and Associates. Inc., are inconsistent with the Ma -nual, they must be
modified and submitted to DWQ for written approval
D Mitchell and Associates, Inc. Stream mitigation plan The proposed on-
site stream mitigation plan in the Nlay 29. 2001 proposed mitigation plan, with a
monitoring supplement dated June 7, 2001, prepared by Mitchell and Associates.
Inc. is acceptable to DWQ with modifications. The modifications to the stream
mitigation plan must be submitted to DWQ by October 1, 2001 for written
approval. These reports are available on IDENR's website at
http,1Y'h2o enr state nc uc lhcwetlands The modifications are as follows.
a Modify the riparian (stream side) restoration to omit
sycamore and sweet gum and to achieve 320 trees per acre at
maturity,
b Provide a satisfactory benthic macro invertebrate
monitoring plan as outlined in DWQ's Interim, Internal Technical
Guide - Benthie Macro invertebrate Monitoring Protocols for
Compensatory Stream Restoration Projects (May 2001),
C Provide plans that adequately depict the footprint of the
Stream restoration efforts, detailing the location of rime /pools,
stream bed sinuosity, stream bed profile, location of root wades,
and grade control structures as outlined in DLNR's "Internal
Technical Guide for Stream Work in North Carolina (April 2001
Version 3.0),

0
0Y 23 2001 10 11 FaX [phone] ,POYNER & SPRUILLa zoo5
4
d Begin the grading and planting of the stream restoration site
on or before, but not later than December 1, 2001, and completion
of the same, on or before April 1, 2002. DWQ shall be copied
,with an as -built plan upon completion of the project vAthin 30 days
of completion of the stream restoration.
e Send annual monitoring reports. These reports shall be sent
to DWQ for five years within 30 days of the anruversary of the
completion of the stream restoration These plans must outline any
planned measures to resolve any problems identified with the
success of the stream restoration; and
f Copy DIWQ on the deed notification DWQ shall be copied
on the deed notification, i,e. document which verifies and requires
that DWQ be noticed and approval acquired as it relates to the
otherwise restricted use and or proposed alternate usage for the
area. This notification will be placed on the stream restoration area
for the stream mitigation and re- opening of Leak Fork Creek.
E At least one thousand (1000) linear feet of stream restoration shall be done
on site This restoration must be successful within five (5) years. SucccssfW
restoration is defined as
a A channel with positive baseflow at least 90% of the time izi a
normal year or minors the baseflow of the approved reference streani
(for instance, the remaining undisturbed portion of the scream between
US 52 and the restoration site),
b. Tree plantings of at )east 320 trees per acre,
c A mu=um of 90% of the stream bank and bed is stable and
not eroding; and
d Naturally maintains the referenced pattern, dimension and
profile
If the Petitioners fail to meet any of the above criteria, the Petitioners
shall purchase stream mitigation credits from the N C Wetlands
Restoration Program by payment of no more than S125 00 a linear
foot for each matehmg foot of unsuccessful restoration below one
thousand (1000) feet.

0r 23 2001 10 it FJ,Y 919 783 1075 - i.POINER & SPRUILL.i. e000
5
F Modifications to Petitioners' Erosion and Sediiiientation Control Plan
The Petitioners snall immediately revise and or amend bus Erasion and
Sedimentation Control Plan (Plan).
Notwithstanding any other statutes, rules and/or regulations, a Plan must be
secured prior to the beginning of construction of the on -site stream ) estoration
and Stow-- water management efforts,
G One of the remaining culverts under Leak Fork Creek shall be partially
plugged at the uppermost end by November 1, 2001, to force strearn base flow to
enter only one pipe rather than both pipes. Higher storm flows may enter both
pipes There will be no physical barriers that prevent passage of aquatic life
tluough the base flow channel barrel.
H. DWQ shall issue a 401 Water Quality Certfieation for Nationwide Permit
32 (Certification), Completed Enforcement Action, for this project. This
Certification shall be issued on or before October 1, 2001, and will consist of the
terms of this Agreement and applicable provisions of general certification number
3290 The applicant must submit a written request for such Certification on or
before September 15, 2001
4 The breach of any condition enumerated above, in paragraphs numbered one, two,
or three, including any and all sub - paragraphs, above, by Petitioners, will render due and
payable the balance of the Civil Penalty Assessment
Petitioners and DENR expressly stipulate and acknowledge that, by entering into
this Agreement, Petitioners neither Admit or deity the allegations contained in the Findings and
Decisions and Assessment of Civil Penalties, however, upon Petitioners' breach of any condition
or term of this Agreement, the sole issue, in any action by DENR is to collect the Fohre amount
of the civil penalty assessments; i.e., ten thousand five hundred, ninety-two dollars and twenty -
eight cents ($10,592.28), in accordance with the terms of Paragraph three above and the action
will be limited to the Petitioners' compliance with the terms of this Agreement.

O9 21 2001 10 11 F -1 919 783 1075 a.POYNER & SMILLi Z007
6
6 DENR agrees to accept the payment of six thousand five hundred and rinety -two
dcilars and twenty -eight ($6,592 28), in full and complete satisfaction of the civil penalty
assessments subject to the terms of this Agreement
7 Notting in this Agreement shall restrict any right of DENR to take any
enforcement action against tlae Petitioners for any future violations that are separate front any
obligations of Petitioners under this Agreement
8 This Agreement shall be binding upon the parties and is entered into knowingly,
intelligently, and voluntarily. 9MM
�h s
This the day of 2001
PTR, Inc
R6c�
}?6ck7 Carter
Parker Wg Inc
Poyner & Spruill, L L.P
1 �
f ,l
;Y
TLmot6y P Sullivan
NC State Bar No 11105
P 0 Box 10096
Raleigh, NC 27605 -0096
(919) 783 -6400
SF/496.�0
A AR
DENR, Division of Water Quality
0
Greg Thorpe, DWQ
Roy Cooper, N C Attorney General
i
Arita LeVeaux
Assistant Attorney General
• C. State Bar No. 13667
• C Department of Justice
Environmental Division
Post Office Box 629
Raleigh, NC 27602 -0629
(919) 716 -6600

APPENDIX 4
DESIGN CALCULATIONS
WET DETENTION BASIN

WET POND DATA SHEET
4060 Patterson Ave. 51te, Wln5ton -5alem NC
POND #
DRAINAGE AREA (Ad) =
IMPERVIOUS AREA (Ai)
BUILDINGS
ROADS
PARKING
OTHER
TOTAL
PERCENT IMPERVIOUS (1)
I = Ad/Ai = 94 70% 4-
4 53 ACRE5
0 00 ACRES
0 00 ACRES
4 29 ACRES
0 00 ACRES
4 29 ACRES
POND# I SHALL BE 7' DEEP AND DE51GNED TO REMOVE 90% T55
5A/DA= 4 1
REQUIRED SURFACE AREA AT PERMANENT POOL
5A,�fQ = 0 18573 AC = 8090 4 5F
SURFACE AREA PROVIDED AT PERMANENT POOL (EL 829)= 9607 5F
........................................................................................ ...............................
5A PROV'D= 9607 > 8090 4 =5A REQ'D OK
......................................................................................... ...............................
MINIMUM REQUIRED VOLUME (SIMPLE METHOD BY TOM 5CHUELER)
Rv =O 05 +0 009'(1)
Rv= 0 902318
VOLUME= I "'Rv'Aci = 0 34063 AC -FT
= 14837 G FT ^ 3
POND# I DATA 5HEET
PAGE I OF 3
Oct , 2001

VOLUME PROVIDED AT TEMPORARY POOL
SET TEMP POOL ELEVATION
REQ'D EL = 830 3557 �-
USE EL = 830 4
VOL- PROV'D -= 1-5380 3 -CF -- - -�-
....................................................................................... ...............................
VOL PROV'D= 1 5380 3 > 14837 G =VOL REQ'D OK
:......................................................................................... ..............................I
FOREBAY SIZING
PERMANENT POOL VOLUME
INCREM
TOTAL
EL
SA (SF)
VOL (CF)
VOL (CF)
829
9607
0
0
830
11352
10479 5
10479 5
831
13152
12252
22731 5
SET TEMP POOL ELEVATION
REQ'D EL = 830 3557 �-
USE EL = 830 4
VOL- PROV'D -= 1-5380 3 -CF -- - -�-
....................................................................................... ...............................
VOL PROV'D= 1 5380 3 > 14837 G =VOL REQ'D OK
:......................................................................................... ..............................I
FOREBAY SIZING
PERMANENT POOL VOLUME
POND# I DATA SHEET
PAGE 2 OF 3
Oct , 2001
INCREM
TOTAL
EL
5A F
VOL (CF)
VOL (CF)
822
200
0
0
823
5 1 7
3585
3585
824
1030
7735
1132
825
1841
14355
2567 5
82G
2935
2388
49555
827
4330
3632 5
8588
828
6135
52325
138205
829
9607
7871
21691 5
REQ'D VOLUME = 20% OF TOTAL PERMANENT BASIN VOLUME = 4338 3 CF
POND# I DATA SHEET
PAGE 2 OF 3
Oct , 2001

CHECK FOREBAY VOLUME
....................................................................................... ...............................
VOL PROV'D= 4549 > 4338 =VOL REQ'D OK
......................................................................................... ..............................I
ORIFICE SIZING REQ'D DRAWDOWN TIME= 2 -5 DAYS
Q2= 0 0658GG CF5 (FOR 2 DAY DRAWDOWN)
Q5= 0 034346 CF5 (FOR 5 DAY DRAWDOWN)
SELECT A 2 0 INCH CIRCULAR ORIFICE, (PERM POOL EL = 829 )
Q PROV'D= Cd'A'(29h) ^ 112 WHERE Cd= 0 G
A= 0 02 182 5F
g= 322 FPS /5
h= avcg head
= 0 65833
Q PROV'D= 0 085232
................................... ...............................
Q2> 0 085232 >Q5 OK
: .................................... ...............................
POND# I DATA 5HEET
PAGE 3 Of 3
Oct , 2001
INCREM
TOTAL
EL
5A 5F
VOL (CE)
VOL (CF)
825
120
0
0
82G
340
230
230
827
757
5485
7755
828
1 G3
1 194 5
1973
829
3520
2576
4549
— PROV'D- VOLUME - =
4-5-49
CF
....................................................................................... ...............................
VOL PROV'D= 4549 > 4338 =VOL REQ'D OK
......................................................................................... ..............................I
ORIFICE SIZING REQ'D DRAWDOWN TIME= 2 -5 DAYS
Q2= 0 0658GG CF5 (FOR 2 DAY DRAWDOWN)
Q5= 0 034346 CF5 (FOR 5 DAY DRAWDOWN)
SELECT A 2 0 INCH CIRCULAR ORIFICE, (PERM POOL EL = 829 )
Q PROV'D= Cd'A'(29h) ^ 112 WHERE Cd= 0 G
A= 0 02 182 5F
g= 322 FPS /5
h= avcg head
= 0 65833
Q PROV'D= 0 085232
................................... ...............................
Q2> 0 085232 >Q5 OK
: .................................... ...............................
POND# I DATA 5HEET
PAGE 3 Of 3
Oct , 2001

IMP %
IMP %
90% TSS REMOVAL IN COASTAL COUNTIES
(NO VEGETATED FILTER REQUIRED)
i DEPTH
85% TSS REMOVAL IN COASTAL COUNTIES
(30' VEGETATED FILTER REQUIRED)
1 DEPTH
3'
3 5'
4'
4.5'
i
5'
55,
6'
6 5'
7'
7.5'
10%
13
10
08
07
06
05
00
00
02
01
20%
24
20
18
17j
j
15
14
76-76.5'
07
09
06
30%
35
30
27
25I
j
22
19
13
12
11
08
40%
45
40
35
31
j
28
25
21
18
14
11
50%
56
50
43
39
j
35
31
27
23
19
15
60%
70
60
53
48
43
39
34
29
24
19
70%
81
70
60
55
I
50
45
39
34
29
23
80%
94
80
70
64
57
52
46
40
34
28
90%
107
90
79
72
j
65
59
52
46
m 3.9
33
100%
120
100
88
81
j
73-1
66
1 58
51
32 1
36
85% TSS REMOVAL IN COASTAL COUNTIES
(30' VEGETATED FILTER REQUIRED)
1 DEPTH
3'
3 5'
4'
45'
i
5'
5.5'
6'
6 5'
7'
7 5'
10%
09
08
07
06
05
00
00
00
00
00
20%
17
13
12
11
j
10
09
08
07
06
05
30%
25
22
19
18
j
16
15
13
12
10
_
09
40%
34
30
26
24
j
21
19
16
14
11
_
10
50%
42
37
33
30
j
27
24
21
18
15
_
13
60%
50
45
38
35
32
29
26
23
20
16
70%
60
52
45
41
37
33
29
25
21
18
80%
68
60
52
47
42
37
32
27
22
20
90%
75
65
58
53
48
43
38
33
28
13
100%
82
74
68
62
j
56
50
44
38
32 1
26

SIZE PRINCIPAL SPILLWAY AND EMERGENCY SPILLWAY
TO PASS 10 YEAR - 24 HOUR STORM EVENT
DRAINAGE AREA = 4 53
AC
% IMPERVIOUS = 947%
Cc = 5UM(CA) /5UM(A)
0 91026
WHERE C IMPERVIOUS =
095
C PERVIOUS =
02
DESIGN STORM EVENT =
I 0 -year,
10 minute duration
RAINFALL INTENSITY = 54
IN /HR
TOP OF OUTLET STRUCTURE=
830 4
M51-
INVERT OF OUTLET STRUCTURE=
82G
M51-
TOP OF POND ELEVATION =
832
M51-
DIMENSIONS OF OUTLET 5TRUCT
4'
TOP OF SPILLWAY =
RISER EL 830,
h
INVERT = 82G
TOP Of DIKE = 832
WIDTH OF EMERGENCY SPILLWAY
100, TOP OF DIKE = 832
TOP OF SPILLWAY = 83 I
Q req = Cc I A = 22 27 cf5 .4— PRINCIPAL SPILLWAY TO PASS REQUIRED 10 YEAR STORM EVENT

CHECK FOR FLOW CAPACITY OF BARREL
h = 400
Dia Of outlet pipe = 2 0'
Hw /DIA = 25
Q= CA(2gh) ^ 5xNb 32 7745 cf5 Where C =0 G5 (Groove -end with headwall)
Nb= number of barrels= I barrels
............. .......................................... ............................... .. .....
Q prin= 3277 cf5 > 22 27 cf5 =Q req OK
.................................................................................... ............................... .......
CHECK FOR FLOW CAPACITY OF R15EP,
Q prin = Cw L H ^ 3/2 = 24 5392 CFS Where Cw =3 3 (Sharp- crested weir)
......................... .... ............................... . ............................. . .......
Q prin= 2454 cf5 > 22 27 cf5 =Q reci OK:
CHECK FOR FLOW CAPACITY OF EMERGENCY 5PIL WAY FOR 25 YEAR 5TORM
RAINFALL INTENSITY = G 15 IN /HR
Q req = Cc I A = 25 3G cf5 t-- EMERGENCY SPILLWAY TO PA55 REQUIRED 25 YEAR STORM EVENT
Q emergency = Cw L H ^ 3/2 = 3000 cf5 Where Cw =3 0 (Broad- crested weir)
........... . .. .......... ............ ........ ............................... .. ....
Q emer= 3000 cf5 > 25 3G cf5 =Q req OK
...... ........ ..... .......... ............. e