20110767 Ver 1_401 Application_20110811

CAROLINA
ECOSYSTEMS, INC.
3040 NC 42 West; Clayton, NC 27520
P:919-606-1065 - F:919-585-5570
August 5, 2011
Mr. Eric Alsmeyer
Raleigh Regulatory Field Office
U.S. Army Corps of Engineers
3331 Heritage Trade Drive
Suite 105
Wake Forest, NC 27587
110767
RE: Nationwide Permit 12 Pre-Construction Notification
Mango Creek Interceptor Sewer Replacement
Wake County, North Carolina
Dear Mr. Alsmeyer & Mr. Ridings:
The City of Raleigh intends to replace a portion of the existing Mango Creek Interceptor sewer line
serving Knightdale and the surrounding area. In support of this activity, Carolina Ecosystems, Inc.
(CEI) and Withers & Ravenel, Inc. have prepared this Nationwide Permit (NWP) 12 Pre-
Construction Notification (PCN) for anticipated impacts to wetlands and streams under the
jurisdiction of the Section 404 and 401 of the Clean Water Act (CWA). This notification also
addresses impacts to the riparian buffers regulated under the Neuse River Basin - Nutrient Sensitive
Waters Strategy: Protection and Maintenance of Existing Riparian Areas Rule 15A NCAC 02B
.0233 (Meuse Buffer Rule) for approval from the NC Division of Water Quality (NCDWQ).
Included in this submittal are the PCN form, site maps, impact sheets, wetland delineation
information, and engineering plans and details. Additional information supplementing the PCN
form is included in this cover letter.
Project Purpose and Description
The overall purpose of this project is to replace an aging and undersized sewer line currently
running parallel to Mango Creek and the Neuse River. The proposed line is approximately 6,500
linear feet of 36-inch diameter pipe. The line must tie to the existing sewer system on both sides of
Mango Creek at Hodges Road and with the siphon under the Neuse River on an NCDOT mitigation
parcel near US 264.
Construction of the sewer outfall will be accomplished using standard techniques. Clearing and
grubbing will be performed, followed by installation of sediment and erosion control measures.
The sewer trench will be excavated and the line installed. The trench will then be backfilled, and
the area graded to pre-construction contours. Stream crossings will be constructed in the dry if
practical. If water is present within the channels, the work area will be isolated from flow during
construction using Portadam or similar technology. The crossing locations will be stabilized with
Mr. Eric Alsmeyer Page 2 of 4
August 5, 2011
rip-rap over filter fabric, and will be constructed at the bed elevation to allow passage of aquatic
organisms. The construction will comply with all conditions of the Nationwide Permit 12 with
noted exceptions detailed below.
A 40-foot permanent easement will be acquired along the entire corridor with an additional 20-foot
temporary easement for the construction of the line. The additional easement is required due to the
size (36-inch) and depth (over 10 feet) of the proposed line as well as the presence of the existing
line. The original plan as outlined in the Knightdale Land Management Plan was to parallel the
existing sewer. Replacement of the sewer line minimizes the overall easement width as only one
line will remain in service. Maintenance corridors will be reduced to 15 feet in width in wetland
areas and 10 feet in riparian buffer areas. The temporary construction corridor will be allowed to
naturally regenerate, but will be seeded to stabilize the disturbed areas. No fescue will be used
within the corridor, with the exception of residential areas.
Alternatives Evaluation
Multiple alignments were evaluated including routes shown on the attached Exhibit 2 from the
project Preliminary Engineering Report, which is available upon request.
Alignment I (Proposed Project): The proposed alignment parallels the north side of Mango Creek
and the Norfolk Southern Railroad, primarily following the existing 18-inch sewer alignment. Two
crossings of Mango Creek are required to tie to the existing sewer system at Hodge Road. The
lower subsurface crossing would replace an existing aerial crossing with bank stability issues within
the mitigation parcel. Wetland and stream impacts would be contained primarily within the existing
maintained corridor of the current line, therefore reducing permanent impacts to these resources. A
smaller parallel sewer option retaining the existing line was considered for this alignment, but
would require additional easement, impacts, and the existing aerial crossing of Mango Creek would
have to be retained.
Alignment IT This alignment parallels the south side of Mango Creek to Hodge Road and would
require only one crossing of Mango Creek. However, three additional stream crossings would be
required on the NCDOT mitigation parcel. Steep slopes along the tract would probably require the
line to be in the Mango Creek wetland system, with a potential for large wetland impacts on the
parcel. Additional upland clearing within the mitigation parcel would also be required.
Alignment III.' This alignment parallels the north side of Mango Creek south of the Norfolk
Southern Railroad. The alignment would have increased wetland and riparian buffer impacts
compared to Alignment I, including a linear parallel impact in Zone 1 of the Neuse buffer. The
limited space between the railroad and stream does not allow flexibility to avoid or reduce impacts.
Proposed Impacts & Avoidance/Minimization
Unavoidable impacts to streams, wetlands, and riparian buffers will result from the project, but have
been minimized as much as practicable. Impacts are calculated based on prior delineation work by
NCDOT on the mitigation parcel, a private development with a prior jurisdictional determination
(Action ID number not available), and a small amount of new delineation area along Hodges Road.
Mr. Eric Alsmeyer Page 3 of 4
August 5, 2011
Carolina Ecosystems delineated the Hodges Road area, and this information is provided in
Attachment 5. In addition, our staff field verified the prior delineations using submeter GPS units.
The prior delineations were found to be accurate and therefore were used for the impact calculation.
The alignment avoids un-impacted wetlands and streams by following the existing sewer easement
for most of the alignment. Forested wetland impacts will primarily be temporary in nature as the
permanently cleared maintenance corridor will be located within the current cleared easement. The
only exception to this is a small (0.01 acre) maintenance corridor adjacent to Hodges Road at
Mango Creek (Site 7).
Stream crossings will be installed using open cut construction techniques. Open cut construction
will be used at the two Mango Creek stream crossings, one of which is on the NCDOT mitigation
parcel. Directional drilling or boring was evaluated but deemed not practical. This crossing will be
constructed to eliminate the existing 18-inch pre-stressed concrete cylinder pipe aerial crossing just
upstream of the I-264 Neuse River Bridge. The downstream terminus of this project is a recently
constructed siphon box that crosses the Neuse River and discharges to the City of Raleigh
interceptor on the west bank of the Neuse River. The siphon elevation is fixed and to some extent
dictates the vertical alignment of the proposed 36-inch gravity sewer. The proposed vertical
alignment of the sewer line through the mitigation parcel is 0.15 percent. At this grade, the top of
the 36-inch sewer line would be approximately one foot below the creek bed at the crossing.
Due to the shallow depth of both Mango Creek crossings, they will require an open cut installation.
A relatively shallow bore would not allow for sufficient cover or depth under the creek to
successfully install a casing pipe. These crossings would require a 54-inch casing pipe that would
protrude above the bottom of the creek bed. Based on geotechnical investigation, there is a sloping
rock face in the immediate vicinity of the proposed stream crossings. There is roughly 1 foot of
partially weathered rock 13 feet below grade over laying a layer of hard granite. The sloping face
makes it virtually impossible to successfully bore through rock on a consistent grade due to the
tendency of the bore to follow the angle of the rock face. The geotechnical report also indicates that
a directional drill with these conditions will be extremely difficult. Several contractors have also
been consulted with regard to this crossing. The consensus is the creek cannot be bored
successfully and therefore open cut methods will be used.
Riparian buffer impacts have also been minimized by limiting the construction corridor to the
existing sewer easement as much as practical. Stream crossings are perpendicular to limit both
buffer and stream impacts. A minor amount of Zone 2 clearing will be required at Site 2 where the
alignment is constrained by the fill slope and bridge abutment of US-264.
The proposed impacts were calculated as follows:
? Wetland impacts within the current cleared easement were considered temporary.
? Wetland impacts in forested areas outside the proposed maintenance corridor were
considered temporary.
? Stream crossings were considered temporary.
? Clearing of trees in buffers outside the current cleared easement were considered temporary.
? Construction in buffer areas within the current cleared easement were considered exempt
(not calculated) as there is no change in existing use.
Mr. Eric Alsmeyer
August 5, 2011
Pronnsed Imnact Summarv
Page 4 of 4
Type Permanent
Impacts Temporary
Impacts Total Impacts
Wetland (ac) 0.01 0.52 0.53
Stream (If) 0 161 161
Riparian Buffer Zone 1 310 5,353 5,663
(sq ft) Zone 2 216 6,138 6,354
Based on the preceding information and the attached PCN, plans, and details, there will be only
minimal impact to jurisdictional resources as a result of this project. All conditions of the
Nationwide Permit 12, and its corresponding General Certification 3699, have been met during the
design phase of the project with the exceptions noted above. The construction will be monitored to
ensure compliance with the conditions of the permits as issued.
The preceding information, along with the enclosed Pre-Construction Notification and associated
materials, is submitted for your review for this project. Five copies are also being sent to the NC
DWQ Wetlands/401 Unit for their review, along with the required $240.00 application fee. We
appreciate your time in reviewing the documentation of this project. Please contact me at your
earliest convenience if you have any questions or require any additional information.
Sincerely,
Carolina Ecosystems, Inc.
11
1)6 - k-
Philip May
Senior Environmental Scientist
Cc: Rob Ridings, NCDWQ 401 Unit (5 copies)
Billy Lee, P.E., Withers & Ravenel
Aaron Brower, City of Raleigh
City of Raleigh
Mango Creek Sewer Interceptor Replacement
Nationwide Permit 12 Pre-Construction Notification
ATTACHMENT LIST
Attachment
1 PCN Form
2 Supplemental Information
3 Figures
4 Impact Sheets
5 Delineation Information
6 Engineering Plans & Details (separate cover)
Figures (Attachment 3)
1 USGS Map
2 Soils Map
3 Site Overview
4 PER Exhibit 2
5 PER Exhibit 3
Impact Sheets (Attachment 4)
WE-1 Overall Alignment & Index
1 Impact Site 1
2 Impact Site 2
3 Impact Site 3
4 Impact Site 4
5 Impact Site 5
6 Impact Site 6
7 Impact Site 7
ATTACHMENT 1
Pre-Construction Notification Form
OF warF9QG 110767 Office Use Only:
r Corps action ID no.
o c DWQ project no.
Form Version 1.3 Dec 10 2008
Pre-Construction Notification (PCN) Form
A. Applicant Information
1. Processing a lop
1a. Type(s) of approval sought from the

Corps:
® Section 404 Permit ? Section 10 Permit
1b. Specify Nationwide Permit (NW P) number: 12 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
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: Mango Creek Interceptor Sewer Replacement
2b. County: Wake
2c. Nearest municipality / town: Raleigh
2d. Subdivision name: Not applicable
2e. NCDOT only, T.I.P. or state
project no: Not applicable Al//;
9
3. Owner Information NR ,
3a. Name(s) on Recorded Deed: See Attachment 2 Q!I
3b. Deed Book and Page No. See Attachment 2
3c. Responsible Party (for LLC if
applicable): Aaron Brower - City of Raleigh
3d. Street address: One Exchange Plaza, Suite 620
3e. City, state, zip: Raleigh, NC 27602
3f. Telephone no.:
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:
4b. Name:
4c. Business name
(if applicable):
4d. Street address:
4e. City, state, zip:
4f. Telephone no.:
4g. Fax no.:
4h. Email address:
5. Agent/Consultant Information (if applicable)
5a. Name: Phil May
5b. Business name
(if applicable): Carolina Ecosystems, Inc.
5c. Street address: 3040 NC 42 West
5d. City, state, zip: Clayton, NC 27520
5e. Telephone no.: 919-606-1065
5f. Fax no.: 919-585-5570
5g. Email address: [e-mail]
Page 2 of 11
PCN Form - Version 1.3 December 10, 2008 Version
B. Project Information and Prior Project History
1. Property Identification
1 a. Property identification no. (tax PIN or parcel ID): See Attachment 2
1 b. Site coordinates (in decimal degrees): Latitude: Attachment 2 Longitude: -
(DD.DDDDDD) (-DD.DDDDDD)
1 c. Property size: 6 acres
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to Mango Creek
proposed project:
2b. Water Quality Classification of nearest receiving water: C-NSW
2c. River basin: Neuse
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 project corridor is primarily an existing sewer easement. It passes through a forested NCDOT mitigation parcel, then
runs adjacent to a rail corridor and residential development before crossing Mango Creek adjacent to Hodges Road.
3b. List the total estimated acreage of all existing wetlands on the property:
0.53
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
161
3d. Explain the purpose of the proposed project:
The project purpose is to replace the existing sewer interceptor that is undersized and aging with a larger sewer line.
This will continue to allow the City of Raleigh to provide sanitary sewer service to the Town of Knightdale.
3e. Describe the overall project in detail, including the type of equipment to be used:
The proposed sewer interceptor will be constructed adjacent to the existing line with minor deviations to minimize
impacts. The existing sewer easement will be used for construction and a smaller additional easement will be required
for construction. Permanent easements of 40 feet will be retained by the City while the remaining area, including the
current easement will be allowed to reforest. Maintenance will be limited to 10 or 15 feet in jurisdictional areas as per
current requirements. Standard construction equipment will be used, with additional boring equipment for the crossing
under the railroad.
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: Multiple JDs incuding NCDOT and subdivision.
4b. If the Corps made the jurisdictional determination, what type
? Preliminary ® Final
of determination was made?
4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: Not known
Name (if known): NCDOT and private developer Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
Dates are not known - Carolina Ecosystems reverified the wetland and stream calls for this project and delineated
additional Mango Creek crossing at Hodges Road on the north end of the project (Attachment 5).
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.
Page 3 of 11
PCN Form - Version 1.3 December 10, 2008 Version
6. Future Project Plans
6a. Is this a phased project? ® Yes ? No
6b. If yes, explain.
This is the first planned phase of replacement of the Mango Creek sewer infrastructure. Future phases are not currently
funded or designed.
Page 4 of 11
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
W3 ? P ®T Excavation Headwater ? Yes
® No ® Corps
? DWQ 0.03
W4 ? P ®T Clearing,
excavation Headwater ® Yes
® No ® Corps
? DWQ 0.27
W5 ? P ®T Clearing, Headwater ® Yes ® Corps 0
12
excavation ® No ? DWQ .
W6 ? P ®T Clearing, Bottomland ® Yes ® Corps 0
03
excavation ® No ? DWQ .
W7 ®P ? T Clearing, Bottomland ® Yes ® Corps 01
0
excavation ? No ? DWQ .
W7 ? P ®T Clearing, Bottomland ? Yes ® Corps 0
07
excavation ® No ? DWQ .
2g. Total wetland impacts 0.53
2h. Comments: Permanently cleared maintenance corridor will be limited to areas without current forested wetland with the
exception of Site 7. Remaining areas will be allowed to reforest or were already cleared for existing sewer line or other
activity.
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
-
404, 1
0
(Corps
stream
Permanent (P) or intermittent DWQ
-
non-
404
, (linear
Temporary (T) (INT)? other) (feet) feet)
S1 ? P ®T Excavate, backfill UT Neuse River ? PER
® INT ® Corps
? DWQ 3 47
S2 ? P ®T Excavate, backfill Mango Creek ® PER
? INT ® Corps
? DWQ 20 62
S7 ? P ® T Excavate, backfill Mango Creek ® PER
? INT ® Corps
? DWQ 20 52
3h. Total stream and tributary impacts 161
3i. Comments: Both Mango Creek crossings and the UT are already disturbed by existing sewer or the inlet of the pipe under
Hodge Road.
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 T
01 ?P?T
02 ?P?T
4f. 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. 6f. 6g.
Buffer impact
number - Reason E Zone 1 impact Zone 2 impact
Permanent (P) or for Stream name i (square feet
)
(square feet)

Temporary T
impact ree
d9
81 ? P ®
T
Clearing
UT Neuse River
®Neos
2125
1208
62 ? P ®T Clearing Mango Creek ® Nos 1878 3396
B7 ? P ®T Clearing Mango Creek ® Nos 1350 1534
B7 ®P ? T Clearing Mango Creek ® Nos 310 216
6h. Total buffer impacts 5663 6354
6i. Comments: Buffer impacts based on forested buffer outside of existing maintained sewer corridor (already cleared).
Page 6 of 11
PCN Form -Version 1.3 December 10, 2008 Version
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.
See attached cover letter for complete description. Sewer line replacement was chosen to reduce permanent impacts
compared to a parallel line. The alignment minimizes upland forest on the mitigaiton parcel, riparian buffer, stream, and
wetland impacts by avoiding undisturbed areas as much as possible and primarily following the existing sewer easement.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Construction will be limited to the areas shown through the use of orange protection or silt fencing at the limits of disturbance.
Stream crossings will be constructed using Portadams or similar technology or in the dry to limit downstream turbidity.
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): ? DW Q ? Corps

2c. If yes, which mitigation option will be used for this

project? ? Mitigation bank

El 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 7 of 11
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 8 of 11
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 No
Comments: No discharge of stormwater will be created by the project.
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project? <1 %
2b. Does this project require a Stormwater Management Plan? ? Yes ® No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why: No impervious surface is proposed with
the exception of sewer manholes.
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?
? 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. DWO Stormwater Program Review
? Coastal counties
? HOW
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
? Yes ? No
attached?
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 (DWO 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)?
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: The project is below minimum criteria as determined by NCDWQ
Planning Branch (Ms Hannah Stallings).
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 (DWO 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.
The purpose of this project is to replace an existing sewer line. While it is being upgraded to allow more capacity, the
upstream segments are not being upsized at this time and the area adjacent to this project is either fully developed or
preserved as part of an NCDOT mitigation parcel.
4. Sewage Disposal (DWO 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.
This is part of the City of Raleigh sewer system and will discharge to their existing plant downstream on the Neuse River.
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?

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?
Existing NCNHP database search, site reference visit on Barwell Road, and field reviews for Michaux's sumac along the
existing sewer corridor and roadsides. No occurrences of Michaux's sumac were found wihtin the 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?
Essential Fish Habitat mapper
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?
National Register of Historic Places. Also, the entire project area has been previously disturbed by construction of roads
or sewer lines.
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: No change in contours is proposed as part of the project therefore
no impact to flood plains will occur.
8c. What source(s) did you use to make the floodplain determination? NC Flood Mapping Program

Philip May 08/05/11

' Date
Applicant/Agent
s Printed Name Applicant/Agent's Signature
(Agent's signature is valid only if an authorization letter from the applicant
is provided.)
Page 11 of 11
PCN Form - Version 1.3 December 10, 2008 Version
ATTACHMENT 2
Supplemental Information
CAROLINA
ECOSYSTEMS, INC.
AUTHORIZATION FORM
Property Information
Property Address
and/or Description
Parcel Identification
Number(s) (PIN)
Mango Creek Interceptor Sewer Replacement
8208 Brian Ct.; Garner, NC 27529
P:919-606-1065 - F:919-341-4474
See attached property owner list
City: Raleigh State: NC
County: Wake
Type of Project: Sewer replacement Property Size (Acres): Varies
Property Owner Information
Legal Owner See attached property owner list
Name
Authorizing NAME/TITLE Aaron Brower, PE City Construction Projects Administrator
Owner's/Agent's Name City of Raleigh
& Title
(Title must be listed as Owner, Partner, Officer, or Authorized Agent. Authorized Agent must attach proof of such status)
s's
Owner'
Street A dddressent One Exchange Plaze, Suite 620
Street dr
City: Raleigh StateNC
Please sign the appropriate Iine(s) below for the access being authorized to Carolina Ecosystems, Inc.
Property Access Authorization
I hereby grant Carolina Ecosystems, Inc. (CEI) staff, their designated contractors and representatives, as well as
Federal, State or local authorities access to the above referenced properties for the purposes of conducting
environmental consulting services. These services may include regulatory determinations of environmental
features on my property. I certify that I am the legal owner or authorized agent of the legal owner of the above
property and have authority to grant such access.
Owner/Agent (signature'- ,.?`?,,?.- 75. 25,1,oj,^z`._...> Date
Arent Authorization
I authorize CEI to act as authorized agent on behalf of the owner of the above listed property for the
communication, submission, and/or application to relevant government entities, including local, state, and
federal authorities, for the review, acceptance, concurrence, and/or approval of environmental information,
documents, and/or permit requests concerning the above listed property. I have made CEI aware of, and
supplied all available records related to, previous environmental investigations on the subject property of which
I have knowledge.
Owner/Agent (signature) Date '2 -Zas- ?,oil
Zip Code: 27602
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\ e`. PROPOSED 36-INCH SEWER
--------------
L -- ZONE 2 NRB
\ `1
ffZONE 1 NRB
1
ZONE 1 NRB
ZONE 2 NRB
?`----- LIMITS OF STREAM
TEMPORARY IMPACT AREA:
118 SO. FT. \ .?
47 L.F.
i
/ / c,?i z;• r /
45
ZONE 2 0
TEMPORARY IMPACT AREA:
1,208 SO. FT.
PROPOSED 20' TEMPORARY
CONSTRUCTION EASEMENT
EXISTING SEWER LINE AND
EASEMENT TO BE ABANDON

WETLANDS:
TEMPORARY NONE
WETLANDS IMPACTS
TEMPORARY NEUSE RIVER RIPARIAN BUFFER:
ZONE 1
ZONE 2
EXISTING SEWER (TO BE ABANDON)
NEW SEWER ALIGNMENT
EX. TOP OF BANK
MANGO CREEK INTERCEPTOR
SEWER REPLACEMENT
f Ralei¢h Wake County North Cr
2,125 SF (0.049 AC)
1,208 SF (0.028 AC)
PROPOSED
40' EASEMENT
(30' EXISTING + 10' NEW)
47 L.F.
AREA 118 SF (0.003 AC)
SS GRAPHIC SCALE
SS 50 0 25 50 100
1 inch = 50 ft.
III WITHERS &- RAVEWEL
IMPACT SITE 1
lNSINEERS I PLANNERS 1 SURYIYORS

N
W E
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ZONE 1 `
TEMPORARY IMPACT AREA:
2,125 S0. FT.
\ ?1
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-\EX. WETLAND AREA
I

9
1
LEGEND
L.F.
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TEMPORARY STREAM IMPACTS:
E
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/ ZONE 1
/0 TEMPORARY IMPACT AREA:
0 1,878 SQ. FT.
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CONSZRUCTJJ WtA'SEMENT
ZONE 2 NRB
? 1 R
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NEUSE RIVER RIPARIAN BUFFER:
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WETLANDS IMPACTS
TEMPORARY NEUSE RIVER RIPARIAN BUFFER:
ZONE 1 1,878 SF (0.043 AC)
ZONE 2 3,396 SF (0.078 AC)
EXISTING SEWER (TO BE ABANDON)
NEW SEWER ALIGNMENT
EX. TOP OF BANK
MANGO CREEK INTERCEPTOR
SEWER REPLACEMENT
f Raleigh Wake County Nonh Carolina

/ FO
i
i PROPOSED 36-INCH SEWER --
LIMITS OF STREAM
TEMPORARY IMPACT AREA: ..
995 SQ. FT.
62 L.F.
,\ r/ \
\ PRO
I`
S?
' S
LEGEND
IMPACT SITE 2
WITHERS & RAVENEL
ENGINEERS I PLANNERS 1 SURVEYORS
SS
SS
/I
EXISTING SEWER LINE AND
EASEMENT TO BE ABANDON
;ED 40' EASEMENT
1
0 10' TEMPORARY
LJCT ?. EASEMENT\
looo
ZONE 2
TEMPORARY IMPACT AREA:
3,396 SQ. FT.
TEMPORARY STREAM IMPACTS:
L. F. 62 L.F.
Col'
AREA 995 SF (0.023 AC)
GRAPHIC SCALE
50 0 25 50 100
1 inrh - ;n ft
N
W
s ? /SS
MogneU?
\
SS?
\ PROPOSED 36-INCH SEWER
PERMANENT MAINTENANCE CORRIDOR
\ \ \ / ?? /,
\ \\ \ \ / \ ? iii , SS/ iC, i'
PROPOSED TEMPORARY \ \ \ / , ?? , ! SSA , ,
CONSTRWC N\EASEMENT \ >? , i SS/i oooo
PROPOSff 40' EASE ME
/
, ooo (3eEXISTING + 10
/\ - - -
i A \ /p i??,*t "sue'
LIMITS OF WETLANDS ONE
i i I I f QNE/ - TEMPORARY IMPACTED AREA:
I ( / 1,386 SO. FT.
\0 cif ,? / /
eol
I I EXISTING SEWER LINE AND
pNE
ON /? I EASEMENT TO BE ABANDON
ONE - - QNE? - - pNE? - -/ -.
LEGEND
WETLANDS: TEMPORARY STREAM IMPACTS:
TEMPORARY 1,386 SF (0.032 AC) L F NONE
WETLANDS IMPACTS
AREA NONE
TEMPORARY NEUSE RIVER RIPARIAN BUFFER:
ZONE 1 NONE
ZONE 2 NONE
EXISTING SEWER (TO BE ABANDON) SS GRAPHIC SCALE
50 0 25 50 100
NEW SEWER ALIGNMENT SS
EX. TOP OF BANK
1 inch = 50 ft.
MANGO CREEK INTERCEPTOR
SEWER REPLACEMENT IMPACT SITE 3 WITHERS RAVENEL
ENGINEERS I ?LANN[RR 1 SURVEYORS
City of Raleigh Wake Count North Carolina
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SEE SITE 4 I I

PROPOSED 36-INCH SEWER
'PROP ED 20' TEMPORARY '
CODS RUCTION EASEMENT
v ----------
s SS
;S- -T- -SS- -
EXISTING SEWER LINE AND
EASEMENT TO BE ABANDON
- - - - - - - - - - - - - -
' SS SS SS
SS- - -SS- -SSA}-- -SS-
(30' EXISTING + 10' NEW)
LIMITS OF WETLANDS
TEMPORARY IMPACTED AREA:
5,008 SQ. FT.
i
i
C
WETLANDS: TEMPORARY STREAM IMPACTS:
TEMPORARY 5,008 SF (0.115 AC) L. F. NONE
WETLANDS IMPACTS
AREA NONE
EXISTING SEWER (TO BE ABANDON) SS
TEMPORARY NEUSE RIVER RIPARIAN BUFFER: NEW SEWER ALIGNMENT SS
EX. TOP OF BANK -//-
ZONE 1 NONE
ZONE 2 NONE GRAPHIC SCALE
50 0 2s 50 100
1 inch = 50 ft.
MANGO CREEK INTERCEPTOR WITHERS &- RAVENEL
SEWER REPLACEMENT IMPACT SITE 5 ENGINEERS I PLANNERS I SURVEYORS
r !'1 r L i r%
_________-
o I ?i___________________
?, It 1
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I -OHE- - -OHE- - -OHE- - - e
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-OHE-
OH - I -
° -o
I I I PROPOSED 10' TEMPORAA b -OHE- -OHE-
o
0 E- E- COIVSTRUC9bEASEMENT, TYP.
LIMITS OF WETLANDS
TEMPORARY IMPACTED AREA-
1,216 SO. FT. / - SS- - -SS
----------
III PROPOSED 36-INCH SEWER J
?
I ? / PERMANENT MAINTENANCE CORRIDOR
LIMITS OF WETLANDS
PERMANENT IMPACTED AREA:
? / / /? 500 SO. FT.
$ I / / •?.
S PROPOSED 40' EASE NT ?..
I
I? I J
I L?
EXISTING SEWER LINE AND
N - - - - _ EASEMENT TO BE ABANDON
Ln i
IN I-— Al ill
= i ? • I?I ,'? ? /iii
LEGEND
WETLANDS:
TEMPORARY 1,714 SF (0.039 AC)
WETLANDS IMPACTS
TEMPORARY NEUSE RIVER RIPARIAN BUFFER:
ZONE 1 NONE
ZONE 2 NONE
MANGO CREEK INTERCEPTOR
SEWER REPLACEMENT
TEMPORARY STREAM IMPACTS:
L. F. NONE
AREA NONE
EXISTING SEWER (TO BE ABANDON) SS
NEW SEWER ALIGNMENT SS
EX. TOP OF BANK -//-
GRAPHIC SCALE
50 0 25 50 100
1 inch = 50 ft.
X,
IMPACT SITE 6 W?THER8 RAVENEL
LNSINKERS 1 PLANNERS 1 SURVEYORS
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ATTACHMENT 5
Delineation Information
ATTACHMENT
PRELIMINARY JURISDICTIONAL DETERMINATION FORM
BACKGROUND INFORMATION
A. REPORT COMPLETION DATE FOR PRELIMINARY JURISDICTIONAL
DETERMINATION (JD):
B. NAME AND ADDRESS OF PERSON REQUESTING PRELIMINARY JD:
Phil May
Carolina Ecosystems, Inc.
3040 NC 42 West
Clayton NC 27520
C. DISTRICT OFFICE, FILE NAME, AND NUMBER:
D. PROJECT LOCATION(S) AND BACKGROUND INFORMATION: Mango
Creek Sewer Interceptor Replacement - SITE 7 adjacent to Hodge Road
(USE THE ATTACHED TABLE TO DOCUMENT MULTIPLE WATERBODIES
AT DIFFERENT SITES)
State:NC County/parish/borough: Wake City: Raleigh
Center coordinates of site (lat/long in degree decimal format): Lat. 35.77720
N, Long. -78.5250 ° E.
Universal Transverse Mercator:
Name of nearest waterbody: Mango Creek
Identify (estimate) amount of waters in the review area:
Non-wetland waters: 100 linear feet: 15 width (ft) and/or 0.2 acres.
Cowardin Class: Riverine
Stream Flow: Perennial
Wetlands: 0.1 acres.
Cowardin Class: Forested
Name of any water bodies on the site that have been identified as Section 10
waters:
Tidal:
Non-Tidal:
E. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT
APPLY):
? Office (Desk) Determination. Date:
® Field Determination. Date(s): 5/12/2011
1. The Corps of Engineers believes that there may be jurisdictional waters of the
United States on the subject site, and the permit applicant or other affected party
who requested this preliminary JD is hereby advised of his or her option to
request and obtain an approved jurisdictional determination (JD) for that site.
Nevertheless, the permit applicant or other person who requested this
preliminary JD has declined to exercise the option to obtain an approved JD in
this instance and at this time.
2. In any circumstance where a permit applicant obtains an individual permit, or
a Nationwide General Permit (NWP) or other general permit verification requiring
"pre-construction notification" (PCN), or requests verification for a non-reporting
NWP or other general permit, and the permit applicant has not requested an
approved JD for the activity, the permit applicant is hereby made aware of the
following: (1) the permit applicant has elected to seek a permit authorization
based on a preliminary JD, which does not make an official determination of
jurisdictional waters; (2) that the applicant has the option to request an approved
JD before accepting the terms and conditions of the permit authorization, and
that basing a permit authorization on an approved JD could possibly result in less
compensatory mitigation being required or different special conditions; (3) that
the applicant has the right to request an individual permit rather than accepting
the terms and conditions of the NWP or other general permit authorization; (4)
that the applicant can accept a permit authorization and thereby agree to comply
with all the terms and conditions of that permit, including whatever mitigation
requirements the Corps has determined to be necessary; (5) that undertaking
any activity in reliance upon the subject permit authorization without requesting
an approved JD constitutes the applicant's acceptance of the use of the
preliminary JD, but that either form of JD will be processed as soon as is
practicable; (6) accepting a permit authorization (e.g., signing a proffered
individual permit) or undertaking any activity in reliance on any form of Corps
permit authorization based on a preliminary JD constitutes agreement that all
wetlands and other water bodies on the site affected in any way by that activity
are jurisdictional waters of the United States, and precludes any challenge to
such jurisdiction in any administrative or judicial compliance or enforcement
action, or in any administrative appeal or in any Federal court; and (7) whether
the applicant elects to use either an approved JD or a preliminary JD, that JD
will be processed as soon as is practicable. Further, an approved JD, a proffered
individual permit (and all terms and conditions contained therein), or individual
permit denial can be administratively appealed pursuant to 33 C.F.R. Part 331,
and that in any administrative appeal, jurisdictional issues can be raised (see 33
C.F.R. 331.5(a)(2)). If, during that administrative appeal, it becomes necessary
to make an official determination whether CWA jurisdiction exists over a site, or
to provide an official delineation of jurisdictional waters on the site, the Corps will
provide an approved JD to accomplish that result, as soon as is practicable.
This preliminary JD finds that there "may be"waters of the United States on the
subject project site, and identifies all aquatic features on the site that could be
affected by the proposed activity, based on the following information:
2
SUPPORTING DATA. Data reviewed for preliminary JD (check all that apply
- checked items should be included in case file and, where checked and
requested, appropriately reference sources below):
® Maps, plans, plots or plat submitted by or on behalf of the
applicant/consultant:Impact maps with permit application.
® Data sheets prepared/submitted by or on behalf of the
applicant/consultant.
? Office concurs with data sheets/delineation report.
? Office does not concur with data sheets/delineation report.
? Data sheets prepared by the Corps:
? Corps navigable waters' study:
? U.S. Geological Survey Hydrologic Atlas:
? USGS NHD data.
? USGS 8 and 12 digit HUC maps.
® U.S. Geological Survey map(s). Cite scale & quad name:Raleigh East.
® USDA Natural Resources Conservation Service Soil Survey.
Citation:Wake County Soil Survey.
® National wetlands inventory map(s). Cite name:Raleigh East.
? State/Local wetland inventory map(s):
? FEMA/FIRM maps:
? 100-year Floodplain Elevation is: (National Geodectic Vertical Datum
of 1929)
® Photographs: ® Aerial (Name & Date):Wake County 2008.
or ? Other (Name & Date):
? Previous determination(s). File no. and date of response letter:
? Other information (please specify):
IMPORTANT NOTE: The information recorded on this form has not
necessarily been verified by the Corps and should not be relied upon for
later jurisdictional determinations.

Signature and date of
Regulatory Project Manager
(REQUIRED)
Signature and date of
person requesting preliminary JD
(REQUIRED, unless obtaining
the signature is impracticable)
WETLAND DETERMINATION DATA FORM - Eastern Mountains and Piedmont
ProjectlSite: MOAW { ( City/County: , .1j-tf " L'.-s Sampling Date:
Applicant/Owner: State: Sampling Point: G? 4) C -T
a
Investigator(s):?? M? Q r, Section, Township, Range:
O
Landform (hiiisiope, terrace, etc : I x? u n Local relief (concave, convex, none): G0,1.C.t4y- . Slope (%): f
Subregion (LRR or MLRA): ?a 6 Latt .'3 5.-7-77Z Long: -7 $- 95 11 S 0 Datum:
Soil Map Unit Name: W,0 L.,.- 4 s S NWI classification: f;.0
Are climatic / hydrologic conditions on the site typical for this time of year? Yes _ /,_ No (if no, explain in Remarks.)
Are Vegetation . Soil . or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes _" No
Are Vegetation Soil . or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS - Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No Is the Sampled Area /
Hydric Soil Present? Yes No within a Wetland? Yes 5 ? No
Wettand Hydrology Present? Yes No
Remarks: y, g E
tA)c CA 7-'.J ita K L? t yea- 0 "4 ? t h tit n??.? ? ? * ate ?+ J
„f
U' tg
4.
MYUKVLUiaY
Wotland Hydrology Indicators: Secondary Indicators (minimum of two required)
Primary Indicators (minimum of one is reiqg redo checks all that apply) _ Surface Soil Cracks (86)
_,Surface Water (Al) _ True Aquatic Plants (B14) parsely Vegetated Concave Surface (B8)
sigh WaterTabte (A2)

3 _ Hydrogen Sulfide Odor (Cl)
Drainage Patterns (810)
s
aturation (A3) Oxidized Rhimspheres on Living Roots (C3) _ Moss Trim tines (816)
_ Water Marks (61) Presence of Reduced Iron (C4) - Dry-Season Water Table (C2)
Sediment Deposits (B2) - Recent Iron Reduction in Tilted Soils (C6) - Crayfish Burrows (C8)
_ Drift Deposits (83) - Thin Muck Surface (C7) - Saturation Visible on Aerial Imagery (C9)
_ Aigat Mat or Crust (84) - Other (Explain in Remarks) _ Stunted or Stressed Plants (01)
_ Iron Deposits (B5) _. Geomorphic Positron (D2)
_ Inundation Visible on Aerial Imagery (137) hallow Aquitard (03)
_ Water,Statned Leaves (Bg) icrotopographic Relief (134)
Aquatic Fauna (B13)
FAC-Neutral Test (135)
Field Observations:
Surface Water Present? Yes /
No ? De
th (inches):
Water Table Present? Yes
? p
No Depth (inches):*" '
7'-

Y
Saturation Present? Yes
^ No Depth (inches): Wetland H ydrology Present? Yes
no
includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:

US Army Corps of Engineers Eastern Mountains and Piedmont - interim Version
VEGETATION (Four Strata) - Use scientific names of plants. Sampling Point:
,?,/
Tres trat to (Plot size: ) Absolute
% Cover Dominant Indicator
S c1 ? Status Dominance Test worksheet:
Number of Dominant Species
5
1, U That Are OBL, FACW. or FAC:
(A)
2."nrt .."
- T
f
t
i
3. 3 0 nan
otal Number o
Dom
Species Across All Strata: 15 (B)
4.
Percent of Dominant Species
5. That Are OBL
FACW
or FAC: (A/B)
,
,
6.

7 Prevalence Index worksheet:
8 Total % Cover of. Multiply by:
OBL species x 1 = 40
4'0
SSa li 1 b Stratum (Plot size:. ?) {. ) = Total Cover -
FACW species 115 X2= 2.50
1, G ^
M 5 '/ FAC species I 10 x3= *350
t
2. :t'`4..c4 AjriA ?. 10 FACU species x4=
d
3. UPL species -? x5=
4. Column Totals: _? {j (A) 600 (B)
5.
Prevalence Index = B/A =
6
7 Hydrophytic Vegetation Indicators:
_ 1 - Rapid Test for Hydrophytic Vegetation
8.

9. ? - Dominance Test is >50%
2

10. - Prevalence Index is s3.0'

= Total Cover 4 - Morphological Adaptations' (Provide supporting
Herb Stratum (Plot ?%
si :1 ?+ ) data in Remarks or on a separate sheet)
1.u nvy S 1?
i -Problematic Nydraphytic Vegetation' (Explain)
2. i??Q?+4..1A?"6L G.t+7a,H ti r ? ?
?
•C+•c
'
3.Liili~r f v? K 4 (t7J y1 wsu k_ r Indicators of hydric soil and wetland hydrology must
b
t
di
t
l
b
d

4 e presen
, un
ess
s
ur
e
or problematic.
. Definitions of Four Vegetation Strata:
5.
6 Tree - Woody plants, excluding vines, 3 in. (7.6 cm) or
more in diameter at breast height (DBH), regardless of
7. height.

8.

9. SaplinglShrub - Woody plants, excluding vines, less
than 31n
DBH and
reat
th
3
28 ft
1
t
l
.
g
(
er
an
.
m)
a
l.
10.

11, Herb - All herbaceous (non-woody) plants, regardless
f
i
o
s
ze, and woody giants less than 328 It tall.
12.
= Total Cover Woody vine - All woody vines greater than 3.28 ft in
height
Woody Vine Stratum
(Plot [size:
/
1. r? 33 F?iGY3?1 t? 7, ;C l . . / i
tc7 -
3. 7i y Z so. -"a i
4.
5 Hydrophytic
V
t
ti
ege
a
on
6. Present? yes No
= Total Cover
Remarks: (include photo numbers here or on a separate sheet.)
US Army Corps of Engineers Eastern Mountains and Piedmont - Interim Version
SOIL
Sampling Point:
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moistl % ? P-c Texture Remarks
o Ioy-g +k/Z qL-? 10YP ??a i G M
?2. k ( IQ M -BO
U2 70 it? YP-
'Type: C=Concentration, D=Depletion, RM=Reduced Matrix, MS=Masked Sand Grains. Location: PL=Pore Linn M=Matrix.
Hydric Soft Indicators: Indicators for Problematic Hydric Solis':
_ Histosol (Al) - Dark Surface (S7) ` 2 cm Muck (A10) (MLRA 147)
_ Histic Epipedon (A2) _ Polyvalue Below Surface (S8) (MLRA 147,148) _, Coast Prairie Redox (A16)
_ Black Histic (A3) .- Thin Dark Surface (S9) (MLRA 147,148) (MLRA 147,148)
_ Hydrogen Sulfide (A4) my Gieyed Matrix (F2) _ Piedmont Floodplain Soils (F19)
_ Stratified Layers (A5) Depleted Matrix (F3) (MLRA 136,147)
_ 2 can Muck (A10) (LRR N) _ Redox Dark Surface (F6) _ Red Parent Material (72)
" Depleted Below Dark Surface (A11) , Depleted Dark Surface (F7) _ Very Shallow Dark Surface (1"1712)
_ Thick Dark Surface (A12) - Redox Depressions (F8) _ Other (Explain in Remarks)
_ Sandy Mucky Mineral (S1) (LRR N, _ Iron-Manganese Masses (F12) (LRR N,
MLRA 147, 148) MLRA 136)
_ Sandy Gieyed Matrix (S4) _ Umbric Surface (F13) (MLRA 136, 122) 'Indicators of hydrophytic vegetation and
_ Sandy Redox (S5) _ Piedmont Fioodpiain Soils (F19) (MLRA 148) wetland hydrology must be present,
_ Stripped Matrix (S6) unless disturbed or problematic.
Restrictive Layer (if observed):
Type:
th
i
h
D
H
d
i
S
il P
t? Y
?
ep
(
nc
es): y
r
c
o
resen
es
No
Remarks:
US Army Corps of Engineers Eastern Mountains and Piedmont - Interim Version
WETLAND DETERMINATION DATA FORM - Eastern Mountains and Piedmont
Project/Site: Ma-c'n k t'1 J City/County:,1a Yl,, Sampling Date: 5/)7 At
Applicant/Owner. L State: K J C ,, Sampling Point: WA-i 3P
Investigator(s): VS A. .-? Section, Township, Range:
Landform (hiilslope, terrace, etc.): 's I 0o &,- Local relief (concave, convex, none): Wwic. Slope (%): fAp
Subregion (LRR or MLRA): 9113a Let: 3S-.71-72 Long: "` y? Yea . SSQ Datum:
Soil Map Unit Name: A. 0617 NWI classification:
Are climatic/ hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation Soil . or Hydrology significantly disturbed? Are 'Normal Circumstances" present? Yes / No
Are Vegetation Soil . or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS - Attach site map showing sampling point locations, transacts, important features, etc.
Hydrophyfic Vegetation Present? Yes No is the Sampled Area
Hydric Soil Present? Yes No within a Wetland? Yes No
Wetland Hydrology Present? Yes No
Remarks: i
HYDROLOGY
Wetland Hydrology Indicators: S econdary Indicators (minimum of two required)
Primary indicators (minimum o f one is required, check all that aoolvl , Surface Soil Cracks (136)
_ Surface Water (Al) _ True Aquatic Plants (1314) _ Sparsely Vegetated Concave Surface (88)
_ High Water Table (A2) - Hydrogen Sulfide Odor (Cl) _ Drainage Patterns (B10)
_ Saturation (A3) _ Oxidized Rhizospheres on Living Roots (C3) , _ Moss Trim Lines (B16)
Water Marks (131) _ Presence of Reduced Iron (C4) _ Dry-Season Water Table (C2)
_ Sediment Deposits (82) _ Recent Iron Reduction in Tilled Soils (C6) _ Crayfish Burrows (C8)
_ Drift Deposits (B3) _ Thin Muck Surface (C7) _ Saturation Visible on Aerial Imagery (C9)
_ Algal Mat or Crust (B4) _ Other (Explain in Remarks) ^ Stunted or Stressed Plants (D1)
_ Iron Deposits (135) _ Geomorphic Position (02)
_ Inundation Visible on Aerial Imagery (87) - Shallow Aquitard (03)
_ Water-Stained Leaves (Bg) - Microtopogrephic Relief (134)
_ Aquatic Fauna (813) _ FAC-Neutral Test (D5)
Field Observations:
1
Surface Water Present? Yes No 4
Depth (inches):
Water Table Present? Yes No epth (inches):
Saturation Present? Yes No Depth (inches): Wetland Hy drology Present? Yes No
(includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks: t
!vD R
t y `
-e
i?t a
r"
7 ?
?
US Army Corps of Engineers Eastern Mountains and Piedmont - interim Version
VEGETATION (Four Strata) - Use scientific names of plants. Sampling Point:
Absolute Dominant Indicator Dominance Test worksheet
Tree Stratum (Plot size: ) % Cover Species? Status Number of Dominant Species
1 P That Are OBL, FACW, or FAC: (A)
,
2 f D
i
t
T
l N
b
t
3. um
er o
om
nan
o
a
Species Across All Strata: (B)
4.

5. Percent of Dominant Species
or FAG: (A/B)
FACW
That Are OBL
,
,
6
.
Prevalence Index worksheet:
7
.
Total % Coyer of., Multiply by:
8
.
OBL species x 1 = 0_
,SaplinalShrub Stratum (Plot size: ) = Total Cover
, FACW species_ x 2 =-
1. r FAC species 100 x3= - 0
2. a rt.# a #CA__ tstyl --- }-? FACU species 40 x4= 3&0
3, f&IA UPL species 0 X5= 0
4, Column Totals 01 ' (A) (B)
5.
Prevalence Index = B/A =3
6
Hydrophytic Vegetation Indicators:
7
_ 1 - Rapid Test for Hydrophytic Vegetation
8
2 - Dominance Test is >50%
g -
'
3 - Prevalence Index is 0.0
10. -
'
- 4 - Morphological Adaptations
(Provide supporting
= Total Cover data in Remarks or on a separate sheet)
Herb Stratum Plot size: --? }
t?-?
t
Z /
Vt? - Problematic Hydrophytic Vegetation' (Explain)
? t r
r,? e_ h,a .
1.
tt? t
2. t ` '

3 Indicators of hydric soil and wetland hydrology must
be
resent
unl
s dist
bed
bl
ti
p
,
es
ur
or pro
ema
c.
4. Definitions of Four Vegetation Strata:
5.
6 Tree - Woody plants, excluding vines, 3 in. (7.6 cm) or
more in diameter at breast height (DBH), regardless of
7. height.

8.
Sapling/Shrub - Woody plants, excluding vines, less
9. than 3 in
DBH and greater than 3
28 it (1 m) tall
.
.
.
10.

11. Herb - All herbaceous (non-woody) plants, regardless
f
i
d
d
l
t
l
th
328 it t
ll
o
s
ze, an
woo
y p
an
s
ess
an
.
a
12.
= Total Cover woody vine - All woody vines greater than 3.28 it in
Woody Vane Stratum (Plot
?- ) height
1* EAL..
2. z[r) CAC
3.
4.

5. Hydrophytlc
Ve
etation
6. g
Present? Yes No
= Total Cover
Remarks: (include photo numbers here or on a separate sheet.)
!AAV
US Army Corps of Engineers Eastern Mountains and Piedmont - Interim Version
SOIL
Sampling Point:
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
?
(inches) . Color j am •stt _(?
coL Texture Remarks
Tvoe
Color (moist) %
- LO
0 Va 46 147
t t I10 to 40 m e15 t P ti
'Type: C=Concentration D=De letion RM=Reduced Matrix, M3=Masked Sand Grains. 'Location: PL=Pore Unin , M=Matrix.
Hydric Soil indicators: indicators for Problematic Hydric Soils :
_ Histosol (Al) _ Dark Surface (S7) _ 2 cm Muck (A10) (MLRA 147)
_ Hisfic Epipedon (A2) _ Polyvatue Below Surface (S8) (MLRA 147,148) _ Coast Prairie Redox (A16)
_ Black Hisfic (AS) _ Thin Dark Surface (S9) (MLRA 147,148) (MLRA 147, 148)
_ Hydrogen Sulfide (A4) _ Loamy Gleyed Matrix (F2) _ Piedmont Floodplain Soils (Fig)
Stratified Layers (AS)
r .- Depleted Matrix (F3) (MLRA 136,147)
2 cm Muck (A10) (LRR N) _ Redox Dark Surface (F6) _ Red Parent Material (TF2)
_ Depleted Below Dark Surface (A11) , Depleted Dark Surface (F7) _ Very Shallow Dark Surface (TF12)
Thick Dark Surface (Al 2)
W _ Redox Depressions (F8) - Other (Explain in Remarks)
Sandy Mucky Mineral (S1) (LRR N, _ Iron-Manganese Masses (F12) (LRR N,
MI-RA 147, 148) MLRA 136)
_ Sandy Gleyed Matrix (S4) - Umbric Surface (F13) (MLRA 136,122) 'indicators of hydrophytic vegetation and
_ Sandy Redox (S6) _ Piedmont Floodpiain Soils (Fig) (MLRA 148) wetland hydrology must be present,
_ Stripped Matrix (S6) unless disturbed or problematic.
Restrictive Layer (if observed):
Type:
Depth (inches): Hydric Soil Present? Yes No
Remarks:
US Army Corps of Engineers Eastern Mountains and Piedmont - Interim Version
CAROLINA
ECOSYSTEMS, INC.
3040 NC 42 West; Clayton, NC 27520
P:919-606-1065 - F:919-585-5570
TRANSMITTAL & PROJECT INFORMATION FORM
To: Date: 8/9/2011
Rob Ridings
NCDWQ Project: Mango Creek Sewer Replacement
1650 Mail Service Center
Raleigh NC 27699-1650 Reference No.:
We are sending you: ® Attached
The following items:
? Email ? Under Separate Cover
COPIES DATE ITEM NO. DESCRIPTION
1 8/5/11 1 Nationwide 12 Preconstruction Notification Package
2 5/2011 2 Half-size engineering plans
3 5/2011 3 Full size engineering plans
4 8/5/11 4 Application Fee - $240.00
Comments:
Copied to:
Billy Lee - Withers & Ravenel
Aaron Brower - City of Raleigh
Project Information:
Project Name: Mango Creek Interceptor Sewer Replacement
Property Owner/Applicant: City of Raleigh
Consultant/Agent: Carolina Ecosystems, Inc.
Related/Previous Action IDs: Not available
Site Address: Hodge Road, Raleigh NC
Subdivision Name: Not applicable
City: Raleigh County: Wake
Lat: See attached Long: See attached
USGS Quad: Raleigh East
Waterway: Mango Creek
Watershed: Neuse HUC 03020201)

o [ WWRI
AU G - q RECD
pFWA7ER0Aa
Requested Action:
? Pre-application Request
® Jurisdictional Determination Request ? Final ® Preliminary
® Permit Application ® Nationwide 12 ?General ? Individual