20040667 Ver 2_401 Application_20110721

COURTESY
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0 North Carolina Wildlife Resources Commission
Gordon Myers, Executive Director

MEMORANDUM
TO: Cyndi Karoly, NCDWQ
Todd Tugwell, USACE
FROM: Mark Fowlkes, NCWRC
EN&N OwG Do
JUI__ 2 1 2011
DENR - WATER, QUAL
WOW& & Sbrmwatw R..,h
DATE: July 21, 2011
SUBJECT: Nationwide Permit,3 application for: maintenance to the Purlear Creek Phase II
mitigation site, Wilkes County, North Carolina.
The North Carolina Wildlife Resources Commission (NCWRC) is submitting the enclosed pre-
construction notification and plan for 37 linear feet of stream maintenance at the existing North
Carolina Ecosystem Enhancement Program's Purlear Creek Phase II mitigation site, Wilkes
County under a 401/404 permit (Nationwide Permit number 3, NCDWQ Water Quality
Certification 3687). This notification is being submitted solely for your records. The project
was originally permitted under Nationwide Permit 27, Action ID 200421153 and NCDWQ 401
certification number 20040667 (see attached).
Copies of the plan have been submitted to Ron Linville (NCWRC) and Sue Homewood
(NCDWQ Winston-Salem office) for their records. The agent authorization form is also
enclosed.
The site will be monitored for 1 year and stability will be documented with a stream cross
section and photographs.
If I can be of any further assistance please let feel free to contact me at 336-527-1547 or by email
at [e-mail]. Thank you.
CC: Shannon Deaton, NCWRC
Mac Haupt, NCEEP
Zack Mondry, NCEEP
Mailing Address: Division of Inland Fisheries • 1721 Mail Service Center • Raleigh, NC 27699-1721
Telephone: [phone] • Fax: [phone]
K22-" North Carolina Wildlife Resources Commission
14 June 2011
AGENT AUTHORIZATION FORM
The undersigned responsible party for the properties identified below, hereby authorizes the
North Carolina Wildlife Resources Commission to act as the agent in obtaining permits needed
to conduct a stream restoration project for the North Carolina Ecosystem Enhancement Program
on the identified properties in Wilkes County N.C. Specifically, the Commission may act as the
agent in obtaining all necessary permits from all units of government including, but not limited
to, the United States Army Corps of Engineers and the State of North Carolina, which are needed
to accomplish this project.
Responsible Party Mac Haupt North Carolina Ecosystem Enhancement Program
Address 2728 Capital Blvd, Suite 1H103
Raleigh NC 27604
Phone Number 919-715-1070
Property Location and PIN # Timothy and Suzanne Wehner,
1094 New Hope Road
Purlear NC, 28665,
Deed and Book: 881-018,
PIN #3829-37-8403, Parcel ID # 1507401
f' ,rte,,.
Signature
Date
Mailing Address: Division of Inland Fisheries • 1721 Mail Service Center • Raleigh, NC 27699-1721
Telephone: [phone] • Fax: [phone]
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Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Pre-Construction Notification PCN Form
A. Applicant Information
1. Processing E-
1 a. Type(s) of approval sought from the
Corps: ® Section 404 Permit ? Section 10 Permit 0", Py
1 b. Specify Nationwide Permit (NWP) number: NWP3 or General Permit (GP) number:
1 c. Has the NWP or GP number been verified by the Corps? ® Yes ? No
1 d. Type(s) of approval sought from the DWQ (check all that apply):
N 401 Water Quality Certification - Regular ? Non-404 Jurisdictional General Permit
? 401 Water Quality Certification - Express ? Riparian Buffer Authorization
1 e. Is this notification solely for the record
because written approval is not required? For the record only for DWQ 401
Certification:
® Yes ? No For the record only for Corps Permit:

® Yes ? No
1f. Is payment into a mitigation bank or in-lieu fee program proposed for mitigation
of impacts? If so, attach the acceptance letter from mitigation bank or in-lieu
fee program. ? Yes ® No
1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h
below. ? Yes ® No
1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ® No
2. Project Information
2a. Name of project: Purlear Creek Phase II mitigation site
2b. County: Wilkes
2c. Nearest municipality / town: Purlear D
2d. Subdivision name: N/A 10 111
2e. NCDOT only, T.I.P. or state
project no:
?U?..
2 1 Z]u
3. Owner Information
3a. Name(s) on Recorded Deed: Timothy and Suzanne Wehner? N QU4L
3b. Deed Book and Page No. 881-018
3c. Responsible Party (for LLC if
applicable):
3d. Street address: 1094 New Hope Rd
3e. City, state, zip: Purlear, NC 28665-0208 / Purlear NC 28665
3f. Telephone no.: 828-773-6801
3g. Fax no.:
3h. Email address:
Page I of 12
PCN Form - Version 1.3 December 10, 2008 Version
4. Applicant Information (if different from owner)
4a. Applicant is: ? Agent ® Other, specify: NCEEP owns a conservation easement on the
property for stream mitigation
4b. Name: Mac Haupt
4c. Business name
(if applicable): North Carolina Ecosystem Enhancement Program
4d. Street address: 2728 Capital Blvd, Suite 1H103
4e. City, state, zip: Raleigh, NC 27604
4f. Telephone no.: 919-715-1070
4g. Fax no.:
4h. Email address: [e-mail]
5. Agent/Consultant Information (if applicable)
5a. Name: Mark Fowlkes
5b. Business name
(if applicable): North Carolina Wildlife Resources Commission
5c. Street address: PO Box 387
5d. City, state, zip: Elkin, NC 28621
5e. Telephone no.: 336-527-1547
5f. Fax no.: 336-527-1547
5g. Email address: [e-mail]
Page 2 of 12
PCN Form - Version 1.3 December 10, 2008 Version
B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID): Parcel ID# 1507401
1b. Site coordinates (in decimal degrees): Latitude: 36.19346 Longitude: - 81.29222
(DD.DDDDDD) (-DD.DDDDDD)
1c. Property size: 10.9 acres
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to
proposed project: Purlear Creek
2b. Water Quality Classification of nearest receiving water: WS-IV
2c. River basin: Yadkin
Page 3 of 12
PCN Form - Version 1.3 December 10, 2008 Version
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
The original stream restoration was completed on Purlear Creek Phase II in the spring of 2006. The project has
subsequently undergone four years of monitoring and is stable except for 37 linear feet (If) of eroding stream bank along
a pool at station 5+75 (see attached scope of work). The eroding stream bank has moved approximately 5 feet to the left
towards the outside of the meander bend. The monitoring transect, cross-section 9 is located within the eroding area.
Cross-section 9 had an as-built bankfull width of 29.8 ft, a cross-sectional area of 34.3 ft, a mean depth of 1.2 ft, a max
depth 3.4 ft and entrenchment ratio of 3.6 (KHA 2006). A 2011 transect survey in the same general location indicated a
bankfull width of 24.3 ft, a cross-sectional area of 67.4 ft, a mean depth of 2.8 ft, max depth 4.8 ft and entrenchment ratio
of 3.6. The fence, originally built close to the stream channel is now in threat of being undermined.
3b. List the total estimated acreage of all existing wetlands on the property:
1.05 acres were identified within the existing stream mitigation site. However proposed work will not disturbe these
areas.
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
Approximately 2,512 If of prennial and intermittent streams within the Purlear Creek Phase II mitigation site
3d. Explain the purpose of the proposed project:
The goals of this project are to provide supplemental woody vegetation planting in areas of low density and repair the 37
If of eroding stream channel on Purlear Creek in order to meet the required success criteria (USACE 2003). The
overarching goal of the origional Purlear Creek Phase II projectwas to design adjustments to stream reaches and
wetlands that will increase their long-term stability and create a more functional riparian ecological community.
3e. Describe the overall project in detail, including the type of equipment to be used:
See attached Purlear Creek Phase II scope of work for more detail.
In order to stabilize the left stream bank at station 5+75, the stream channel will be moved back to its original position and the
left stream bank will be stabilized with a brush toe structure. A small bankfull bench will be created on the left stream
bank and the remaining stream bank will be reshaped at a 2:1 to 3:1 slope. The point bar on the right stream bank will be
lowered approximately 1 ft in elevation and the wetted channel will be moved approximately 3 ft to the right to ensure a
more stable channel dimension. The stream channel design calls for a bankfull width of 33.2 ft, a cross-sectional area of
55.5 ft, a mean depth of 1.7 ft, max depth 4.2 ft and entrenchment ratio of 6.0.
Commission staff will be on-site at all times during construction. Any modification design due to changes in on-site conditions
will be approved by the Commission designer. Disturbance of soils will be limited to only what work can be accomplished
and stabilized on a daily basis. As repair work is completed and the stream banks reshaped, the area will be hand
seeded with a temporary and permanent native seed mix, mulched with straw and covered 700 g/m2 coir fiber erosion
control matting. The matting will be anchored in place with 24 in wood stakes.
The disturbed areas will be further stabilized with native trees and shrubs planted at a density of 1,117 stemstacre. Existing
woody vegetation at the repair area will be saved to the maximum extent possible and transplanted back after the banks
have been stabilized. Whips of silky dogwood Corpus amomum and silky willow Salix sericea will be planted at the toe of
the bank. These whips were not used in the February 2011 supplemental planting and have been kept submerged in
water. Whip survivorship is expected to be low due to the proposed summer planting. The woody plants will be watered
once a week for three weeks after the repair work is completed. Disturbed areas in the pasture will be seeded with a
horse pasture seed mixture and mulched with straw (Table 1).
After the repair work is completed, the existing braded wire electric fence will be relocated far enough away from the repair
area so that the landowner could maintain a 5 ft grassed area inside the fence without impacting newly planted vegetation
or destabilizing the stream bank.
Heavy equipment (track hoe) will only access the stream when absolutely necessary during construction. It is anticipated that
all track hoe work can be accomplished from the top of the stream bank. The stream channel will need to be crossed in
order to access the site and reshape the right side of the stream channel. All construction materials including logs, root
wads, plants, and erosion control materials will be stockpiled at designated locations. To limit disturbance of soils, all
equipment will travel along identified travel corridors
Page 4 of 12
PCN Form - Version 1.3 December 10, 2008 Version
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
®Yes ? No ? Unknown
project (including all prior phases) in the past?
Comments: This is an existing NCEEP stream mitigation site.
4b. If the Corps made the jurisdictional determination, what type
F, Preliminary Final
?
of determination was made?
who delineated the jurisdictional areas?
4c. If yes Agency/Consultant Company: NCEEP/Kimley-Horn and
, Associates, Inc.
Name (if known): unknown Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
5. Project History
5a. Have permits or certifications been requested or obtained for ® Yes ? No ? Unknown
this project (including all prior phases) in the past?
5b. If yes, explain in detail according to "help file" instructions.
The USACE pemit (Action ID 200421153) was obtained by the NCEEP for the Purlear Creek Phase II stream and
wetland mitigation site. Impacts to existing waters of the U.S. authorized by this permit total 2,512 linear feet of stream
channel and 1.05 acres of wetland. The NCDWQ 401 certification (number 20040667) was issued 03 June 2004.
6. Future Project Plans
6a. Is this a phased project? ? Yes ® No
6b. If yes, explain.
Page 5 of 12
PCN Form - Version 1.3 December 10, 2008 Version
C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
? Wetlands ® Streams - tributaries ? Buffers
? Open Waters ? Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a. 2b. 2c. 2d. 2e. 2f.
Wetland impact Type of jurisdiction
number - Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact
Permanent (P) or (if known) DWQ - non-404, other) (acres)
Temporary T
W1 ? P ? T ? Yes
? No ? Corps
? DWQ
W2 ? P ? T ? Yes
? No ? Corps
? DWQ
W3 ? P ? T ? Yes
? No ? Corps
? DWQ
W4 ? P ? T ? Yes ? Corps
? No ? DWQ
W5 ? P ? T ? Yes
? No ? Corps
? DWQ
W6 ? P ? T ? Yes ? Corps
? No ? DWQ
2g. Total wetland impacts
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a. 3b. 3c. 3d. 3e. 3f. 3g•
Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact
number - (PER) or (Corps - 404, 10 stream length
Permanent (P) or intermittent DWQ - non-404, width (linear
Temporary (T) (INT)? other) (feet) feet)
S1 ? P ®T Stabilization Purlear Creek ® PER
? INT ® Corps
? DWQ 24.3 37
S2 ? P ? T ? PER ? Corps
? INT ? DWQ
S3 ? P ? T ? PER ? Corps
? INT ? DWQ
S4 ? P ? T ? PER ? Corps
? INT ? DWQ
S5 ? P ? T ? PER ? Corps
? INT ? DWQ
S6 ? P ? T ? PER ? Corps
? INT ? DWQ
3h. Total stream and tributary impacts 37
3i. Comments: Stabilize eroding bank by reshaping banks and installing a brush toe on the left stream bank.
Page 6 of 12
PCN Form - Version 1.3 December 10, 2008 Version
4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then individually list all open water impacts below.
4a. 4b. 4c. 4d. 4e.
Open water Name of waterbody
impact number - (if applicable) Type of impact Waterbody type Area of impact (acres)
Permanent (P) or
Temporary T
01 ?P?T
02 ?P?T
03 ?P?T
04 ?P?T
4E Total open water impacts
4g. Comments:
5. Pond or Lake Construction
If and or lake construction proposed, then complete the chart below.
5a. 5b. 5c. 5d. 5e.
Wetland Impacts (acres) Stream Impacts (feet) Upland
Pond ID Proposed use or purpose (acres)
number of pond
Flooded
Filled
Excavated
Flooded
Filled
Excavated
Flooded
P1
P2
5f. Total
5g. Comments:
5h. Is a dam high hazard permit required?
? Yes ®No if yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If an impacts require mitigation, then you MUST fill out Section D of this form.
6a.
? Neuse ?Tar-Pamlico ? Other:
Project is in which protected basin? ? Catawba ? Randleman
6b. 6c. 6d. 6e. 6f. 6g.
Buffer impact
number- Reason Buffer Zone 1 impact Zone 2 impact
Permanent (P) or for Stream name mitigation (square feet) (square feet)
Temporary T impact required?
-
B1 ?P?T ?Yes
? No
B2 ?P?T ?Yes
? No
B3 ?P?T ?Yes
? No
6h. Total buffer impacts
6i. Comments:
Page 7 of 12
PCN Form - Version 1.3 December 10, 2008 Version
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Only areas with active bank erosion and channel instability will be targeted for maintenance work with the use of heavy
equipment. The use of in-stream structures was minimized. Work within the existing channels was preferred over excavating
new channels. The length and location of haul roads were minimized.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
During construction, heavy equipment will only access the stream when absolutely necessary. It is anticipated that all track
hoe work can be accomplished from the top of the bank. All disturbed areas willl be covered with temporary and permanent
seed mixes, straw mulch, and coir matting to reduce erosion. Only the amount of stream bank that can be stabilized by the
end of the work day will be disturbed. All staging areas and soil stockpile areas will be on high ground and surrounded by silt
fencing. Equipment will be inspected and maintained to prevent any pollutants from leaking into surface waters. Additional
sediment and erosion control practices will be implemented when needed.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for
impacts to Waters of the U.S. or Waters of the State? ? Yes ® No
2b. If yes, mitigation is required by (check all that apply): ? DWQ ? Corps

2c. If yes, which mitigation option will be used for this
project? ? Mitigation bank

? Payment to in-lieu fee program
? Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter) Type Quantity
3c. Comments:
4. Complete if Making a Payment to In-lieu Fee Program
4a. Approval letter from in-lieu fee program is attached. ? Yes
4b. Stream mitigation requested: linear feet
4c. If using stream mitigation, stream temperature: ? warm ? cool ?cold
4d. Buffer mitigation requested (DWQ only): square feet
4e. Riparian wetland mitigation requested: acres
4f. Non-riparian wetland mitigation requested: acres
4g. Coastal (tidal) wetland mitigation requested: acres
4h. Comments:
5. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Page 8 of 12
PCN Form - Version 1.3 December 10, 2008 Version
6. Buffer Mitigation (State Regulated Riparian Buffer Rules) - required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
buffer mitigation? ? Yes ® No
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.

Zone 6c.
Reason for impact 6d.
Total impact
(square feet)
Multiplier 6e.
Required mitigation
(square feet)
Zone 1 3 (2 for Catawba)
Zone 2 1.5
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund).
6h. Comments:
Page 9 of 12
PCN Form -Version 1.3 December 10, 2008 Version
E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1a. Does the project include or is it adjacent to protected riparian buffers identified ? Yes ® No
within one of the NC Riparian Buffer Protection Rules?
1 b. If yes, then is a diffuse flow plan included? If no, explain why.
? Yes ? No
Comments:
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project? 0.0%
2b. Does this project require a Stormwater Management Plan? ? Yes ® No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why: We are proposing to repair stream banks
on an existing NCEEP stream mitigation project. This project does not involve the addition of impervious development
and therefore, does not have density standards associated with it. This project is not subject to the NWP's that require
submittal of a Stormwater Management Plan.
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
? Certified Local Government
2e. Who will be responsible for the review of the Stormwater Management Plan? ? DWQ Stormwater Program
? DWQ 401 Unit
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is this project? Wilkes County
? Phase II
? NSW
3b. Which of the following locally-implemented stormwater management programs ? USMP
apply (check all that apply): ? Water Supply Watershed
? Other:
3c. Has the approved Stormwater Management Plan with proof of approval been ? Yes ? No
attached?
4. DWQ Stormwater Program Review
? Coastal counties
? HQW
4a. Which of the following state-implemented stormwater management programs apply ? ORW
(check all that apply): ? Session Law 2006-246
? Other:
4b. Has the approved Stormwater Management Plan with proof of approval been
attached? ? Yes ? No
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements? ? Yes ? No
5b. Have all of the 401 Unit submittal requirements been met? ? Yes ? No
Page 10 of 12
PCN Form - Version 1.3 December 10, 2008 Version
F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1 a. Does the project involve an expenditure of public (federal/state/local) funds or the ® Yes ? No
use of public (federal/state) land?
1 b. If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State ? Yes ® No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1 c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
? Yes
? No
letter.)
Comments:
2. Violations (DWQ Requirement)
2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ? Yes ® No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b. Is this an after-the-fact permit application? ? Yes ® No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3. Cumulative Impacts (DWQ Requirement)
3a. Will this project (based on past and reasonably anticipated future impacts) result in ? Yes ® No
additional development, which could impact nearby downstream water quality?
3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
4. Sewage Disposal (DWQ Requirement)
4a. 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.
N/A
Page 11 of 12
PCN Form - Version 1.3 December 10, 2008 Version
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or ? Yes ® No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act ? Yes ® No
impacts?
El Raleigh
5c. If yes, indicate the USFWS Field Office you have contacted. ? Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
NC Wildlife Resources Commission and NC Natural Heritage program (NCNHP) GIS data and correspondence with Ron
Linville NCWRC. The Bog turtle, Glyptemys muhlenbergii, listed as threatened due to similarity of appearance was
identified in the county. However, bog turtle habitat does not occur within or near the maintenance project area.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat? ? Yes ® No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation ? Yes ® No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
The stream bank maintenance area will be within the existing and previously permitted NCEEP conservation easement
for the Purlear Creek mitigation site. Travel corridorswill be within the easement or in existing pastures. A visual
assessment of the site was also completed. Any impacts to cultural resources would have been previously addressed.
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain? ? Yes ® No
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination? Wilkes County FEMA-NFIP maps.
Mark Fow1kes, NCWRC 21 July 2011
Applicant/Agent's Printed Name Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant
is provided.)
Page 12 of 12
PCN Form - Version 1.3 December 10, 2008 Version
t) ti -o L,U'l v 2.
Addendum
Proposed Scope of Work
Purlear Creek Phase II Stream Mitigation site
Wilkes County, North Carolina
EEP Project Number: 00295
JUL
2011 R
d
DENR
Wepand? ? ?ATF}; Qu
gar,,
In 2006, phase II of a stream restoration project was completed along 2,512 linear feet (If) of
Purlear Creek in Wilkes County (Figure 1 and 2). The lowermost 1,100 if was considered a
Priority 2 restoration, whereas the remaining 1,412 if was a Priority 1 restoration (NCSU 2008).
Through subsequent monitoring of the project site, a 371f section of unstable stream bank was
identified (NCSU 2008) and lower woody plant density were observed between stations 3+00
and station 11+40 on reach 1. At the request of the North Carolina Ecosystem Enhancement
Program (NCEEP), the North Carolina Wildlife Resources Commission (Commission) prepared
a scope of work (SOW) entailing a stream maintenance plan to address these issues and to
provide maintenance -summary report documenting the repairs. The SOW was approved on
February 11, 2011. Supplemental vegetation was planted on February 16, 2011. Prior to
February 16, 2011, NCEEP determined a more robust method was needed to repair the eroding
stream bank. This addendum outlines the additional work needed to address the 371f of eroding
stream bank.
Project Goals/Objectives
The goals of the project are to provide supplemental woody vegetation planting in areas of
low density and repair the stream channel on Purlear Creek in order to meet the required success
criteria (USACE 2003). In order to meet these goals, the project objectives include, but are not
limited to the following:
1. Install brush toe structure along the toe of the slope in order to stabilize a 37 if section of
eroding stream bank.
2. Plant native trees and shrubs along the disturbed bank in order to help stabilize the stream
bank.
3. Relocate the existing fence to allow enough room to stabilize the stream bank and allow
room for the landowner to mow the first five feet inside the fence.
Existing Conditions
The project is located in the Yadkin River basin, piedmont physiographic region, Wilkes
County (Hydrologic Unit Code: 03040101, NCDWQ sub-basin: 03-07-01). The drainage area at
the site is 3.0 mil (Figure 1). The land use along Purlear Creek is composed of small rural farms,
pastures and forested woodlots. Some of the agricultural land has been converted to single
family home sites.
Purlear Creek flows through an alluvial valley (Type VIII) with Chewacla loam; Pacolet
Sandy clay loam; Pacolet sandy loam; Wehadkee loam. The soils are found adjacent to streams,
formed from alluvium, and are somewhat poorly drained.
The original stream restoration was completed on Purlear Creek in the spring of 2006. The
project has subsequently undergone four years of monitoring and is stable except for 371f of
eroding stream bank along a pool at station 5+75 (Figures 2, 3 and 4). The eroding stream bank
has moved approximately 5 feet to the left towards the outside of the meander bend. The
monitoring transect, cross-section 9 is located within the eroding area. Cross-section 9 had an
as-built bankfull width of 29.8 ft, a cross-sectional area of 34.3 ft, a mean depth of 1.2 ft, a max
depth 3.4 ft and entrenchment ratio of 3.6 (KHA 2006). A 2011 transect survey in the same
general location indicated a bankfull width of 24.3 ft, a cross-sectional area of 67.4 ft, a mean
depth of 2.8 ft, max depth 4.8 ft and entrenchment ratio of 3.6. The fence, originally built close
to the stream channel is now in threat of being undermined.
Proposed Improvements
In order to stabilize the left stream bank at station 5+75, the stream channel will be moved
back to its original position and the left stream bank will be stabilized with a brush toe structure
(Figures 4, 5 and 6). A small bankfull bench will be created on the left stream bank and the
remaining stream bank will be reshaped at a 2:1 to 3:1 slope. The point bar on the right stream
bank will be lowered approximately 1 ft in elevation and the wetted channel will be moved
approximately 3 ft to the right to ensure a more stable channel dimension. The stream channel
design calls for a bankfull width of 33.2 ft, a cross-sectional area of 55.5 ft, a mean depth of 1.7
ft, max depth 4.2 ft and entrenchment ratio of 6.0.
Disturbance of soils will be limited to only what work can be accomplished and stabilized on
a daily basis. As repair work is completed and the stream banks reshaped, the area will be hand
seeded with a temporary and permanent native seed mix (Table 1), mulched with straw and
covered 700 g/mz coir fiber erosion control matting (Figure 7). The matting will be anchored in
place with 24 in wood stakes.
The disturbed areas will be further stabilized with native trees and shrubs (Table 2) planted at
a density of 1,117 stems/acre. Existing woody vegetation at the repair area will be saved to the
maximum extent possible and transplanted back after the banks have been stabilized. Whips of
silky dogwood Cornus amomum and silky willow Salix sericea will be planted at the toe of the
bank. These whips were not used in the February 2011 supplemental planting and have been
kept submerged in water. Whip survivorship is expected to be low due to the proposed summer
planting. The woody plants will be watered once a week for three weeks after the repair work is
completed. Disturbed areas in the pasture will be seeded with a horse pasture seed mixture and
mulched with straw (Table 1).
After the repair work is completed, the existing braded wire electric fence will be relocated
far enough away from the repair area so that the landowner could maintain a 5 ft grassed area
inside the fence without impacting newly planted vegetation or destabilizing the stream bank.
Equipment will only access the stream when absolutely necessary during construction. It is
anticipated that all track hoe work can be accomplished from the top of the stream bank. The
stream channel will need to be crossed in order to access the site and reshape the right side of the
stream channel. All construction materials including logs, root wads, plants, and erosion control
materials will be stockpiled at designated locations. To limit disturbance of soils, all equipment
will travel along identified travel corridors (Figure 3).
Sediment and Erosion Control
A Certificate of Plan Approval from the North Carolina Division of Land Resources, Land
Quality Section is not required for this project because only 0.24 acre of land will be disturbed.
However, standard erosion and sediment control practices will be used.
We will access the property from Purlear Road (SR 1317) on an improved paved/gravel
access road (Figure 3). The track hoe will be unloaded and loaded from this point. The track
hoe will cross the stream upstream of the bridge, in an area where the stream channel is
dominated by bedrock and travel through a pasture to the repair site.
Monitoring
A permanent cross-section has been established at the repair site. Monitoring will consist of
a cross-section survey and photographic documentation immediately after construction and in the
spring of 2012 to determine stream channel stability. This monitoring is in addition to the
previously approved photographic documentation and supplemental vegetation planted stem
counts in September 2011. A monitoring summary report will be produced at the end of each
monitoring year.
Project Schedule
The project schedule depends on the date EEP issues a project agreement. The following is a
tentative project timeline based on an estimated agreement execution date:
0 Scoping document and design plans to EEP
• EEP issues project agreement and
design plan approval
• Permits submitted to USACE and NCDWQ
• Stream repair complete
• Stream repair and planting summary
report complete
• 2011 supplemental vegetation monitoring
and monitoring report complete
• Stream repair monitoring and monitoring
July 15, 2011
July 24, 2011
July 24, 2011
August 31, 2011
September 2, 2011
September 30, 2011
June 30, 2012
report complete
Conclusion
Completion of this project will stabilize and protect the section of Purlear Creek II that is
currently degraded and ensure a dense woody vegetative riparian area. These repairs and
improvements will contribute to ensuring the overall success of this restoration project.
References
KHA (Kimley-Horn and Associates, Inc). 2006. Purlear Creek Phase II monitoring report year
0 of 5. Raleigh, North Carolina.
NCSU (North Carolina State University). 2008. Purlear Creek - Phase II stream restoration
annual monitoring report, monitoring year 3. Raleigh, North Carolina.
USACE (United States Army Corps of Engineers, Wilmington District, United States
Environmental Protection Agency, North Carolina Wildlife Resources Commission, and
North Carolina Division of Water Quality). 2003. Stream mitigation guidelines.
4

Figure 1.-Purlear Creek II mitigation site vicinity map.
RENDEZVOUS MTN:-- \ ?.t. _', ` _.'(
STATE PARK 1559
2 0
1346 Q _ _ , ! Q
1348
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1350 44. 1347
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o-
t X426 ' :' " y ,' l w?tra?
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' ?"
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' -- r t 1346 ? ? '
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1 I 9
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r
1304
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(10!(1 r OA , 1 ? " ?;,r _ ? ???,,? y ? '? ` 4? ?- i ?y -. ,, `t •. r: - L' Vdikesboro
. -"
1 0 1 2 3 4
Directions from Hwy. 421 in Wilkesboro:
From Wilkesboro on Hwy. 421, turn right onto NC-16. Follow NC-16 for 3.5 miles to the
Miller's Creek intersection. Turn left onto Old Hwy. 421 (SRI 304) and follow for 2.6 miles.
Turn right onto Purlear Road (SR-1346) and follow for 0.8 miles. You will come to a stop sign at
a church, turn left to stay on Purlear Road (also called New Hope Road). Follow Purlear Road
for 0.6 miles until the intersection with Vannoy Maxwell Road. Project begins at this
intersection and continues through the intersection with CC Hayes Road (SR-1349).
Contact the EEP Project Manager for access and landowner notification instructions.
Access is not permitted to this site without prior approval.
5
Figure 2.-Purlear Creek II mitigation site map.
6
Figure 3. Purlear Creek II mitigation site component map
SR 1317
0

Purlear Creek R Mitigation Site
EEP Project Number: 00295
I'.COSV4 1l Wilkes County, North Carolina
May 2011
7
Figure 4.-Purlear Creek II eroding stream bank photographs.

aL ?w

i?- AA

Station 5+75: Looking down stream at 37 ft of eroding stream bank. Move the stream
channel back to its original location by installing a brush toe structure on the left stream bank.
The toe of the right stream bank would be located near the existing log sticking out into the
water.
i a a
rlwn

Station 6+20: Looking upstream at 37 ft of eroding stream bank.

8
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Figure 7.-Typical bank sloping and re-vegetation.
-?2L _--- Cu
Existing bank
Proposed bank
e r.?
11

Table 1.-Seeding summary for sediment and erosion control.
Community Type: Riparian Acres 0.02

Approved Date
Species Name
Common Name
Stratumb Total
Pounds
Setaria italica German millit Herb 0.80
Bidens aristosaa Tickseed sunflower Herb 0.03
Coreo sis lanceolataa Lance leaved coreo sis Herb 0.03
El mus vir inicus Vir ina wild e Herb 0.09
Panicum vir atum Switch grass Herb 0.09
Pol onum ens lvanicum Pennsylvania smartweed Herb 0.03
Rubeckia hirtaa Black eyed susan Herb 0.03
Subtotal 1.10

Community Type: Pasture Acres 0.22

Approved Date
Species Name
Common Name
Stratum Total
Pounds
Horse Pasture seed mix Herb 5.5
Subtotal 5.50
Total 6.60 0.24
aNorth Carolina Ecotype
bStratum - Herbaceous, Shrub, Subcanopy, & Canopy
Substitutions may occur due to seed availability
Table 2. Purlear Creek II stream repair planting summary.
Eroding Stream Bank Repaira Acres 0.02

Species Name
Common Name Maximum
Spacing (ft)
Unit Typeb
Size`
Stratum Individual
Spacing (ft) Number
of Stems
Cornus amomum Silk dogwood NA W 6 ft Shrub NA 250
Salix sericea Silky willow NA W 6 ft Shrub NA 250,
Sambucus canadensis Elderberry 10 P 1 1 Shrub 5 10
Lindera benzoin Spicebush 10 P I gal Shrub 10 3
Cercis canadensis Redbud 20 P I gal Subcano y 15 3
Betula nigra Rver birch 15 P 5 gal Canopy 10 3
Total 516
Tota l Acres 0.02
aIncludes the 37 ft of eroding stream bank area at station 5+75. Whips will be used to create a brush mattress along the toe of the bank.
The remaining planted will be planted on and above the bankfiill bench.
b Unit Type - W = Live stakes whips, L = Live stake, B = Ball & Burlap, P = Potted or containerized material, R =Bare root, S = Seed.
Size - Length of Live stakes (in.), Caliber size of B&B material (in.), Pot size (2-3gal), Height of woody material (ft).
Substitutions may occur due to availability.
12