20130387 Ver 1_More Info Received_20130412

201 30387
DEPARTMENT OF THE ARMY
WILMINGTON DISTRICT, CORPS OF ENGINEERS
69 DARLINGTON AVENUE
G WILMINGTON, NORTH CAROLINA 28403 -1343
RE:I1I17
O
AI'IENIIONOF
Environmental Resources Section
Mr. Chad Coburn
NC Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405 (�
Dear Mr. Coburn: j
_ i
The US Army Corps of Engineers, Wilmington District (USACE) proposes a Section 14
Emergency Streambank and Shoreline Erosion Protection project to protect a municipal
wastewater pump station located in Southport, Brunswick County, North Carolina.
The goal of the Southport, NC Section 14 project is to provide reliable protective measures
to prevent the ongoing streambank and shoreline erosion at the site from destructively impacting
the municipal wastewater pumping station. The subject wastewater pumping station is
maintained by the City of Southport as a key element of the municipal wastewater system, and is
under imminent threat of damage or failure from continuing shoreline erosion at the site. The
proposed shoreline erosion protection would place armor stone along a stretch of —350 linear feet
of shoreline adjacent to the pumping station. The work will occur from land -based equipment
and work will be conducted from a staging area owned and maintained by the City of Southport.
Because the project involves limited stabilization of a shoreline, (work that would normally be
authorized by the USACE Regulatory Nationwide Permit No. 13 although the USACE does not
issue itself permit authorization), it is the USACE opinion that the project complies with General
Cdrtification # 3885. A courtesy PCN and figures that further describe the project are enclosed.
Thank you for your attention to this matter. Should you have any questions, please contact
Ms. Jessica Mallindine of my Environmental Resources section at 910 - 251 -4543.
Enclosures
Sincerely,
Elden Gatwood, Chief
Planning and Environmental Branch

jot WAT�c
LLJW� -7�
O Nii� Y
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Pre - Construction Notification PC Form
A. Applicant Information
1. Processing
1a. Type(s) of approval sought from the
Corps:
El Section 404 Permit ❑Section 10 Permit
1 b. Specify Nationwide Permit (NWP) number: 13 or General Permit (GP) number:
1c. Has the NWP or GP number been verified by the Corps?
® Yes
❑ No
1d. Type(s) of approval sought from the DWQ (check all that apply):
® 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization
le. 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
1g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1h
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:
Southport, NC Section 14 Emergency Streambank and Shoreline Erosion Protection
Project
2b. County:
Brunswick County
2c. Nearest municipality / town:
Southport
2d. Subdivision name:
NA
2e. NCDOT only, T.I.P. or state
project no:
NA
3. Owner Information
3a. Name(s) on Recorded Deed:
State of North Carolina
3b. Deed Book and Page No.
rP
3c. Responsible Party (for LLC if
applicable):
r
i I ,
i'
3d. Street address:
ILNR
APR 12 2013 �
3e. City, state, zip:
3f. Telephone no.:
A
water Branch
3g. Fax no.:
3h. Email address:
Page 1 of 11
PCN Form — Version 1.3 December 10, 2008 Version

4. Applicant Information (if different from owner)
4a. Applicant is-
❑ Agent ® Other, specify: Federal Government
4b. Name:
4c. Business name
(if applicable):
U.S. Army Corps of Engineers, Wilmington District
4d. Street address.
69 Darlington Avenue
4e. City, state, zip:
Wilmington, NC 28401
4f. Telephone no.:
910 -251 -4543
4g. Fax no.:
910 -251 -4744
4h. Email address:
Jessica .D.Mallindine @usace.army.mil
5. Agent/Consultant Information (if applicable)
5a. Name:
5b. Business name
(if applicable):
5c. Street address:
5d. City, state, zip:
5e. Telephone no.:
5f. Fax no.:
5g. Email address:
Page 2 of 11
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):
209619722026
1 b. Site coordinates (in decimal degrees):
Latitude: 33.545975 Longitude: - 78.11318
(DD.DDDDDD) (- DD.DDDDDD)
1c. Property size:
0.43 acres
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to
Cape Fear River
proposed project:
2b. Water Quality Classification of nearest receiving water:
Sc
2c. River basin:
Cape Fear River Basin
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 subject wastewater pumping station is maintained by the City of Southport as a key element of the municipal
wastewater system, and is under imminent threat of damage or failure from continuing shoreline erosion at the site. The
USACE- Wilmington District has made several visits to Southport in the last decade in reference to shoreline erosion
problems at this site. The condition of the shoreline in front of the wastewater pumping station has changed significantly
from the earlier trips and has continually moved closer to the pumping station with the shoreline only 20 feet from the
building as of a March 2011 site visit. The project site is located on the waterfront of municipal Southport.
3b. List the total estimated acreage of all existing wetlands on the property:
No vegetated wetlands on existing property.
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
N/A
3d. Explain the purpose of the proposed project:
The goal of the Southport, NC Section 14 project is to provide reliable protective measures to prevent the ongoing
streambank and shoreline erosion at the site from destructively impacting the municipal wastewater pumping station.
3e. Describe the overall project in detail, including the type of equipment to be used:
The subject area of the waterfront fronts a wind fetch of around 5 miles, resulting in significant wave action and
substantial impacts to the shoreline. The exposure of the site also makes it susceptible to storm surge effects from
hurricanes and northeasters. Wakes from passing vessels in the adjacent Atlantic Intracoastal Waterway and the
Wilmington Harbor Federal Navigation Channel also impact the shoreline at the site. Continued erosion of the shoreline is
expected to directly impact the pump station if reliable protective measures are not provided. The wastewater pumping
station is a municipal facility critical to city operations. See Figure 1.
The Preferred Alternative would consist of removal of the existing concrete debris and placement of granite armor stone at a
maximum side slope of 2H:1 V (2 horizontal feet per vertical foot), with a crest width of just over 5 feet, along a stretch of
—350 linear feet of shoreline adjacent to the pumping station. The armor stone unit size would be 20 -inch, 850 -lb on
average, and it would be placed in a double layer for an overall thickness of 3.5 feet. The armor stone would be placed
over a 12" thick layer of 5 -12" granite bedding stone, in turn placed over a layer of geotextile fabric. See Figures 2 and 3.
Total impacts of the construction area will be approximately 0.5 acre based on the measured land area as well as the
area of the proposed riprap footprint below the +4.2 foot MLLW contour or about 3,600 square feet of tidal impacts.
The construction is proposed to be conducted as a one -time event to reduce the risk of structural failure of the pump station.
The stone to be used for this project will either be stockpiled on site and placed from the landward side of the project or
will be placed directly onto the design template used a land based crane.
Page 3 of 11
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 /
project (including all prior phases) in the past?
Comments:
❑Yes ®No El Unknown
4b.
If the Corps made the jurisdictional determination, what type
of determination was made?
El Preliminary El Final
4c.
If yes, who delineated the jurisdictional areas?
Name (if known):
Agency /Consultant Company:
Other:
4d.
If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
6.
Project History
5a. Have permits or certifications been requested or obtained for
this project (including all prior phases) in the past?
❑ Yes ® No ❑ Unknown
5b. If yes, explain in detail according to "h6lp file" instructions.
6.
Future Project Plans
6a.
Is this a phased project?
❑ Yes ® No
6b.
If yes, explain.
Page 4 of 11
PCN Form — Version 1.3 December 10, 2008 Version

C Proposed Impacts Inventory
1. Impacts Summary
1a. 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
W1 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W2 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W3 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W4 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W5 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W6 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
2g. Total wetland impacts
0
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
❑ PER
❑ Corps
❑ INT
❑ DWQ
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
0
3i. Comments:
Page 5 of 11
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
Rock placement below the mean
01 ®P ❑ T
Cape Fear River
high tide line along project
River or Estuary
0.1
boundaries
02 ❑P ❑T
03 ❑P ❑T
04 ❑P ❑T
4f. Total open water impacts
0.1
4g. Comments:
5. Pond or Lake Construction
If pond 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
5E Total
0
0
0
0
0
0
0
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:
Page 6 of 11
PCN Form — Version 1.3 December 10, 2008 Version

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 any 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
impact
required
B1 ❑P ❑T
El Yes
❑ No
B2 ❑P ❑T
E3 Yes
❑ No
B3 ❑P ❑T
El Yes
❑ No
6h. Total buffer impacts
0
0
6i. Comments:
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Work will be confined to maximum extent practicable to the eroded zone. Impact area is minimized to that necessary to
adequately and safely complete the project.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
If possible, all work will be completed from the landward side of the project area with little to no in water work. Rock used to
stabilize jetty will be clean and contaminant -free (no sediment). Storage of the stone prior to placement will be in
industrial /construction locations that will minimal impact on the environment.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for
❑ Yes ® No
impacts to Waters of the U.S. or Waters of the State?
2b. If yes, mitigation is required by (check all that apply):
❑ DWQ ❑ Corps
❑ Mitigation bank
2c. If yes, which mitigation option will be used for this
project?
❑ 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
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PCN Form — Version 1.3 December 10, 2008 Version

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:
6. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a descnption of the proposed mitigation plan.
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:
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PCN Form — Version 1.3 December 10, 2008 Version

E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1 a. 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 [_1 No
Comments: NA
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project?
<10 %
2b. Does this project require a Stormwater Management Plan?
❑ Yes ® No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why:
The only building on project area is the small pump station that is upland development covering <10% impervious area
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
NA
❑ 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?
NA
❑ Phase II
3b. Which of the following locally- implemented stormwater management programs
❑ NSW
❑ 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 9 of 11
PCN Form —Version 1.3 December 10, 2008 Version

F.
Supplementary Information
1.
Environmental Documentation (DWQ Requirement)
1a.
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)?
1c.
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
letter.)
❑ Yes ® No
Comments. Currently being routed through State Clearing House
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): NA
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.
NA
Page 10 of 11
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?
5c. If yes, indicate the USFWS Field Office you have contacted.
® Raleigh
❑ Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
USFWS website, agency meetings, and communication /correspendence with USFWS.
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?
Fritz Rohde( 252 - 838 -0828) and NMFS
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?
John Mayer- USACE archaeologist
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: It will not change the base flood, 100 -year, elevation.
8c. What source(s) did you use to make the floodplain determination? Digital flood insurance rate maps on the NCFPM
webpage.
Philip M. Payonk
Applicant/Agent's Printed Name
Date
Applicant/Agent's Signature
(Agent's signature is valid only if an authorization letter from the applicant
is provided.)
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PCN Form — Version 1.3 December 10, 2008 Version