20090083 Ver 1_More Info Received_20090501

AECOM Environment
7041 Old Wake Forest Road, Suite 103, Raleigh, NC 27616-3013
T 919.872.6600 F 919.872.7996 www.aecom.com
April 30, 2009
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Ms. Amy Chapman Pi
North Carolina Division of Water Quality
d
1650 Mail Service Center
Raleigh, North Carolina 27699-1650
Subject: Pre-Construction Notification under Nation Wide 18, Application for Water Quality
Certification, City of Raleigh Neuse River Waste Water Treatment Plan Constructed
Wetlands Project, DWQ Project #2009-0083
AECOM Project No. 10724-006
Dear Ms. Chapman,
On behalf of the City of Raleigh, AECOM North Carolina, Inc. (AECOM) is pleased to submit the
enclosed application for water quality certification and pre-construction certification (PCN) for the
proposed constructed wetland project at the Neuse River Waste Water Treatment Plant (NRWWTP),
DWQ Project No. 2009-0083. Following consultation and agreement with Jamie Shern at the U.S. Army
Corps of Engineers (Corps), we are applying for this project as a Nation Wide 18 permit.
As you may recall, this project consists of the construction of subsurfafce flow (SSF) wetlands in three
locations at the NRWWTP. The purpose of this project is to reduce elevated levels of nitrate present in
three small streams on the NRWWTP site that drain into the Neuse River. Headwaters for these three
small streams are each on the NRWWTP site. The design includes creating a hydraulic control
reservoir at two of the sites and then directing a portion of the stream flow through a SSF constructed
wetland. One of the SSF wetlands will use an existing farm pond as the hydraulic control reservoir.
The proposed project includes 0.07 acres of wetland impacts and 270 linear feet of stream impacts, as
documented in the enclosed PCN form. Impacts to the streams related to the construction of the
hydraulic control reservoir at Site A will be long-term but temporary. When the SSF wetlands are no
longer necessary, the treatment wetlands and associated structures may be removed and the streams
restored at a minimum to pre-disturbance condition. The proposed project also includes 0.013 acres of
open water impacts related to fill for installation of a riser pipe at Site E.
Wetland plantings for each SSF constructed wetland will include a typical distribution of soft rush
(Juncus effuses), wool grass (Scirpus cyperinus), and sedge (Carex crinate), planted as sprigs at a 2-
foot spacing, nominally. The Planting Plan for the CW systems is also described in Appendix A, Figure
C-8 of the enclosed SSF wetland report.
Our design efforts focused on methods and placement of the SSF wetlands to avoid and minimize
wetland, stream, and buffer impacts from the SSF wetlands and associated structures. For Site A, the
SSF wetland was designed to be located outside the present and future, post-construction, stream
buffers. Initial designs impacted approximately twice as much stream length compared to the current
design included in this submittal. For Site C, the initial SSF wetlands were designed to be located in the
natural wetland area below the road. The design was modified to move the SSF wetland to the field
AECOM Environment
Ms. Amy Chapman
Page 2
north of the wetland, thereby eliminating wetland and buffer impacts to the east of the road. The
hydraulic control structures to the west of the road were designed to minimize flooding of the wetland,
streams, and buffers in this area. For Site E, there are no impacts to streams or wetlands in this area.
Buffer impacts were minimized at this location by piping water from the existing pond to an area for the
SSF wetland that is already a cleared upland area.
We expect minimal impacts to occur to the streams and wetland from the construction techniques to be
used for the sites. Placement of perforated risers, riser barrel outlets or other hydraulic control
structures will occur from upland areas. It should not be necessary for equipment to be staged in
wetlands. If staging of equipment in the wetlands is necessary, mats will be used to reduce wetland
impacts.
We look forward to your review and approval of the proposed project. Please do not hesitate to contact
Peter with any questions, at [phone] ext. 231, or [e-mail].
Yours sincerely,
Peter M. Thibodeau, Ph.D., P.G., P.H.
Program Manager
Attachments: Pre-Construction Notification Form
William H. Doucette, Ph.D., L.G.
Senior Regional Program Manager
Report, Proposed Subsurface Flow (SSF) Constructed Wetlands
Report, Natural Resources Survey Report
Check, for application fee
Cc: Jamie Shern, U.S. Army Corps of Engineers
Dale Crisp, City of Raleigh
Steve Levitas, Kilpatrick Stockton
AECOM Environment

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Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.0 November 2008
Pre-Construction Notification (PCN) Form
A. Applicant Information i
1. Processing
1 a. Type(s) of approval sought from the
Corps:
®Section 404 Permit El Section 10 Permit
1 b. Specify Nationwide Permit (NWP) number: 18 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):
® 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 o

? Yes nly for Corps Permit:

® 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: Neuse River WWTP Subsurface Flow Wetlands
2b. County: Wake
2c. Nearest municipality / town: Clayton
2d. Subdivision name: NA
2e. NCDOT only, T.I.P. or state
project no: NA
3. Owner Information
3a. Name on Recorded Deed: City of Raleigh
3b. Deed Book and Page No. book # 09885 page # 0449
3c. Responsible Party (for LLC if
applicable): Dale Crisp
3d. Street address: City of Raleigh Public Utilities Department, 1 Exchange Plaza, Suite 620,
219 Fayetteville Street Mall
3e. City, state, zip: Raleigh, NC 27602
3f. Telephone no.: (919)-857-4540
3g. Fax no.: (919)-857-4545
3h. Email address: [e-mail]
Page 1 of 12
PCN Form - Version 1.0 November 2008 Version
Section A. Applicant Information, continued
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: Peter Thibodeau, Ph.D., P.G., P. H.
5b. Business name
(if applicable): AECOM
5c. Street address: 7041 Old Wake Forest Road, Suite 103
5d. City, state, zip: Raleigh, NC 27616
5e. Telephone no.: 919-872-6600 x231
5f. Fax no.: 919-872-7996
5g. Email address: [e-mail]
Page 2 of 12
PCN Form - November 2008 Version
B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID): Pin # 1751047213
1 b. Site coordinates (in decimal degrees): 35.7105`N - 78.4913`W
1 c. Property size: 1,462 acres
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to unnamed tributaries that drain to Neuse River
proposed project:
2b. Water Quality Classification of nearest receiving water: C, NSW
2c. River basin: Neuse River, 03020201
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 majority of the site is either cultivated land or broad-leaf deciduous forest. The NRWWTP consists of mostly
contiguous farmland owned or leased by CORPUD and divided into numbered agricultural fields. Properties surrounding
the site consist of residential properties, farmland, and state owned forestland. The northern and eastern site boundaries
border a 3.6-mile section of the Neuse River. Beddingfield Creek bounds the site to the south.
3b. List the total estimated acreage of all existing wetlands on the property:
According to the National Wetlands Inventory there is an estimated total of 86 acres of wetlands on the property.
4.4 acres of wetlands were delineated within the 64.5 acres of the site that may potentially be temporarily affected by the
project.
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
According to the National Hydrography Dataset there is an estimated total of 20,830 linear feet of streams on the
property.
3d. Explain the purpose of the proposed project:
To reduce elevated levels of nitrate present in three small streams that drain into the Neuse River. Headwaters for these
three small streams are each on the Site.
3e. Describe the overall project in detail, including the type of equipment to be used:
The project consists of the construction of subsurface flow (SSF) wetlands in three locations on the property (Figure 1).
The attached plan views illustrate the proposed design (Figures 2 through 4). The design includes creating a hydraulic
control resevoir at two of the sites and then directing a portion of stream flow through a constructed subsurface flow
wetland. One of the SSF wetlands will use an existing farm pond as the hydraulic reservoir. Construction of the SSF
wetland systems will include the use of heavy equipment such as backhoes and dump trucks, which will be monitoried
and carefully managed to minimize impacts to sensitive resources.
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?
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: AECOM Environment
Name (if known): Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
Both DWQ and the Corps have visited the sites and evaluated the streams. The attached Natural Resoruces Report
includes documentation on streams, wetlands, and endangered species on the property.
Page 3 of 12
PCN Form - Version 1.0 November 2008 Version
Project Information and Prior Project History
5. 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 "help file" instructions.
6. Future Project Plans
6a. Is this a phased project? ? Yes ® No
6b. If yes, explain.
Page 4 of 12
PCN Form - November 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 Type of wetland Forested (Corps - 404, Area of impact (acres)
Permanent (P) or impact (if known) DWQ - non-404, other)
Temporary T
W1 ®P ? T Excav Em/Forested ® Yes ? No ® Corps
? DWQ .050
W2 ®P ? T Fill Emergent ? Yes ® No ® Corps
? DWQ .009
W3 ® P ? T Flood Em/Forested ® Yes ? No ® Corps
? DWQ .011
W4 ? P ? T ? Yes ? No ? Corps
? DWQ
W5 ? P ? T ? Yes ? No ? Corps
? DWQ
W6 ? P ? T ? Yes ? No ? Corps
? DWQ
2g. Total wetland impacts 0.07
2h. Comments: Wetland impacts W1, W2, and W3 are associated with Site C and are from the placement of a riser barrel at
the head of three existing culverts which will create a small backwater to supply a consistent source of water to the SSF
wetland. Additional wetland impacts will be from excavating a small channel to the inlet supplying water to the SSF wetland.
Wetlands at Site C are primarily Emergent although small forested area may be impacted by flooding and excavation.
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.
Stream impact Type of Stream name Perennial (PER) or Average stream width (feet) Impact
number - impact intermittent (INT)? length
Permanent (P) or (linear feet)
Temporary (T)
S1 ®P ? T Fill UT to Neuse R. ? PER ® INT 2 45
S2 ® P ? T Flooding UT to Neuse R. ? PER ® INT 2 155
S3 ® P ? T Fill UT to Neuse R. ® PER ? INT 4 20
S4 ® P ? T Flooding UT to Neuse R ® PER ? INT 4 50
S5 ? P ? T ? PER ? INT
S6 ?P?T ?PER ?INT
3g. Total stream and tributary impacts 270
3h. Comments: Impacts to the streams from construction of the hydraulic control reservoir at Area A will be long-term but
temporary. When the treatment wetlands are no longer necessary (about 25 years) the treatment wetlands and any
associated structures will be removed and the streams restored at a minimum to predisturbance condition. Stream impacts
S1 and S2 are associated with Site A (Figure 2). Stream impacts S3 and S4 are associated with Site C (Figure 3).
Page 5 of 12
PCN Form -Version 1.0 November 2008 Version
C. Proposed Impacts Inventory, continued
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 individual) list all o en water impacts below.
4a. 4b. 4c. 4d. 4e.
Open water Name of
impact number waterbody Type of impact Waterbody type Area of impact (acres)
- Permanent (if
(P) or applicable)
Temporary T
01 ®P ? T NA Fill from Riser Pipe Pond 0.013
02 ?P?T
03 ?P?T
04 ?P?T
M. Total open water impacts 0.013
4g. Comments:
Page 6 of 12
PCN Form - November 2008 Version
C. Proposed Impacts Inventory, continued
5. Pond or Lake Construction
If and or lake construction pro osed, then complete the chart below.
5a. 5b. 5c. 5d. 5e.
Wetland Impacts (acres) Stream Impacts (feet) Upland
Pond ID Proposed use or (acres)
number purpose of pond
Flooded Filled Excavated Flooded Filled Excavated Flooded
P1 Treatment wetland NA NA NA 155 45 0 0.8
P2 Treatment wetland .011 .009 .050 0 20 50 0.0
5f. Total .011 .009 .050 155 65 50 0.8
5g. Comments:
5h. Is a dam high hazard permit required?
? Yes No if yes, permit ID no:
5i. Expected pond surface area (acres): P1 - 0.81 P2 -.07
5j. Size of pond watershed (acres): P1 - 53 P2 - 330
5k. Method of construction: See plans
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 ou 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 (square Zone 2 impact
Permanent (P) for impact Stream name mitigation feet) (square feet)
or Temporary required?
T
61 ®P ? T UT to Neuse R ? Yes ® No 18,055 8,829
B2 ®P ? T UT to Neuse R ? Yes ® No 2,268 515
133 ®P ? T UT to Neuse R ? Yes ® No 1,179 831
6h. Total buffer impacts 21502 10,175
6i. Comments: For all buffer impacts the reason for impacts is to construct subsurface flow wetlands. At Area C (62) buffer
impacts are from temporary flooding of area that will occur after storm events. No removal of vegetation is anticipated
although changes may occur doue to changes in hydrology.
Page 7 of 12
PCN Form - November 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.
Design efforts focused on methods and placement of the SSF wetlands to avoid and minimize wetland, stream and buffer
impacts from the SSF wetlands and associated structures. For Site A, the SSF wetland was designed to be located
outside the stream buffer (Figure 2). Initial designs impacted approximately twice as much stream length compared to
the current design included in this submittal. For Site C, the initial SSF wetlands were designed to be located in the
natural wetland area below the road. The design was modified to move the SSF wetland to the field north of the wetland,
thereby eliminating wetlland and buffer impacts to the east of the road. The hydraulic control structures to the west of the
road were designed to minimize flooding of the wetland, streams, and buffers in this area (Figure 3). For Site E, there are
no impacts to streams or wetlands in this area. Buffer impacts were minimized by piping water from the pond to an area
for the SSF wetland that is already cleared upland area (Figure 4).
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Minimal impacts to the streams and wetland will occur from the construction techniques used for the site. Placement of
perforated risers, riser barrel outlets or other hydraulic control structures will occur from upland areas. It should not be
necessary for equipment to be staged in the wetlands. If staging of equipment in the wetlands is necessary, mats will be
utilized to reduce wetland impacts.
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
El Payment to in-lieu fee program
project?
? Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank: NA
3b. Credits Purchased (attach receipt and letter) Type NA Quantity NA
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
Page 8 of 12
PCN Form - Version 1.0 November 2008 Version
D. Impact Justification and Mitigation, continued
5a. If using a permittee responsible mitigation plan, provide a description 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 Reason for impact Total impact
(square feet) Multiplier Required mitigation
(square feet)
Zone 1 3 (2 for Catawba)
Zone 2 1.5
Total buffer mitigation required:
6c. 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).
6d. Comments: Buffer impacts are exempt
Page 9 of 12
PCN Form - November 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? ? Yes ® No
2. Determination if the Project Requires a Stormwater Management Plan
2a . Does the project require a Non-404 Jurisdictional General Permit? ? Yes ® No
2b . Is the project subject to General Certification 3704 or 3705? ® Yes ? No
3. Determination of Stormwater Review Jurisdiction
3a . Is this project subject to any of the following state-implemented stormwater ? Coastal counties
management programs (check all that apply)? ? HQW
? ORW
If so, attach one copy of the approval letter from the DWQ and one copy of the ? Session Law 2006-246
approved stormwater management plan. ? Other:
3b . In which local government's jurisdiction is this project? City of Raleigh
3c. Is this local government certified to implement a state stormwater program? ? Yes ® No
If so, attach one copy of the approval letter from the local government and one copy
of the approved stormwater management plan (or one copy of the approved
Stormwater management plan stamped as approved).
4. Information Required for DWQ 401 Unit Stormwater Review
4a. What is the overall percent imperviousness according to the most current site plan? NA
4b. Does this project contain any areas that meet the criteria for "high density" per ? Yes ® No
General Certifications 3704 and 3705?
4c. If the site is over 24% impervious and/or contains high density areas, then provide a brief narrative description of the
stormwater management plan.
NA
4d. Has a completed BMP Supplement Form with all required items been submitted ? Yes ® No
for each stormwater BMP?
Page 10 of 12
PCN Form - Version 1.0 November 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)?
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:
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.
NA
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.
No wastewater is generated by the project.
Page 11 of 12
PCN Form - Version 1.0 November 2008 Version
F. Supplementary Information, continued
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?
Site evaluation and Natural Heritage Program GIS data. See attached Natural Resources Report.
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?
Project is not in a Coastal County
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 project area is part of the City of Raleigh's WWTP and has been perviously disturbed by agricultu ral activity.
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: Project not in floodway
8c. What source(s) did you use to make the floodplain determination? NC Flood Mapping
,f

Applicant/Agent's Printed Name pplicant/ gent's Signature
(Agent's signature is alid only if n authorization letter from the applicant Date
is rovided.)
Page 12 of 12
PCN Form - November 2008 Version
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1

Proposed Subsurface Flow (SSF)
Constructed Wetlands
Neuse River Wastewater Treatment Plant
Raleigh, North Carolina
AECOM North Carolina, Inc.
April 2009
Document No.: 10724-006-CW-SSF1
AECOM
1
Prepared for:
City of Raleigh Public Utilities Department
1 Raleigh, North Carolina
1
1
1
1
1
Proposed Subsurface Flow (SSF)
1
Constructed Wetlands
1
Neuse River Wastewater Treatment Plant
1 Raleigh, North. Carolina
1
1
1 Prepared y
Ronald Joh on
1 -?
Reviewed By
1 Peter M. Thibodeau, Ph.D., P.G., P.H.
1 AECOM North Carolina, Inc.
April 2009
1 Document No.: 10724-006-CW-SSF1
1 AECOM
Contents

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AECONI Environment
1.0 Introduction/Overview ........................................................................................................................... 1-1
1.1 Report organization .......................................................................................................................... 1-2
1.2 Site background and history ............................................................................................................ 1-2
1.2.1 Site description ................................................................................................................... 1-2
1.2.2 Site physiography and hydrology ...................................................................................... 1-2
1.3 Surface water data ........................................................................................................................... 1-3
1.3.1 Surface water data ............................................................................................................. 1-3
1.3.2 Numerical flow and fate and transport modeling .............................................................. 1-3
1.4 Alternative analysis report ............................................................................................................... 1-3
2.0 Subsurface flow wetland design .......................................................................................................... 2-1
2.1 Subsurface flow treatment wetlands ............................................................................................... 2-1
2.2 Subsurface flow wetland Area A ..................................................................................................... 2-2
2.2.1 Area A overview ................................................................................................................. 2-3
2.2.2 Area A subsurface flow wetland design ............................................................................ 2-3
2.3 Subsurface flow wetland Area C ..................................................................................................... 2-3
2.3.1 Area C overview ................................................................................................................. 2-3
2.3.2 Area C subsurface flow wetland design ............................................................................ 2-4
2.4 Subsurface flow wetland Area E ..................................................................................................... 2-4
2.4.1 Area E overview ................................................................................................................. 2-4
2.4.2 Area E subsurface flow wetland design ............................................................................ 2-4
2.5 Potential effectiveness ..................................................................................................................... 2-5
3.0 Maintenance and monitoring plan .......................................................................................................3-1
3.1 Monitoring plan ................................................................................................................................. 3-1
3.2 Maintenance plan ............................................................................................................................. 3-1
3.3 Buffer planting and maintenance ..................................................................................................... 3-1
4.0 References cited .....................................................................................................................................4-1
List of Appendices
Appendix A Subsurface Flow Wetland Design
Appendix B Subsurface Flow Wetland Design Calculations
Appendix C Inspection Checklist
I April 2009

List of Tables
Table 1 Nitrate Concentrations in Surface Water Samples
Table 2 Annual Nitrate Removal Rates for Proposed Treatment Wetlands
List of Figures
Figure 1-1 Site Plan
Figure 2 Nitrate Analytical Data
April 2009

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AECOM Environment
1.0 Introduction/Overview
AECOM North Carolina, Inc. (AECOM) has prepared this Design Report on behalf of the City of Raleigh Public
Utilities Department (CORPUD) to address the increased nitrogen loading to surface water at the Neuse River
Wastewater Treatment Plant (NRWWTP). The NRWWTP (the Site) is located at 8500 Battle Bridge Road in
Raleigh, Wake County, North Carolina (Figure 1-1). The following report presents the design of three
subsurface flow wetlands to help address the surface water nitrogen loading.
The NRWWTP has been operated since 1976 and has land-applied biosolids since 1980 under a land
application permit (#W0001730) issued by the North Carolina Division of Water Quality (DWQ).
In 2002, DWQ issued CORPUD a Notice of Violation (NOV) for the over-application of PAN to a number of
fields and later assessed a civil penalty against CORPUD in the amount of $73,936.85, which CORPUD paid
in full. However, DWQ did not require CORPUD to take any remedial action to address the excess loading of
nitrogen to surface water as a result of the PAN over-application.
CORPUD's land application of biosolids also resulted in exceedances of the Environmental Management
Commission's (EMC) groundwater standard for nitrate (10 mg/L) (15A NCAC 2L.202(g)(103). Asa result, in
2002 DWQ issued an NOV to CORPUD relating to these exceedances and directed CORPUD to perform a
comprehensive site assessment (CSA) to delineate the groundwater contamination and to support the
preparation of a groundwater corrective action plan (CAP) pursuant to the EMC's rules. In December 2002,
ENSR (now part of AECOM) completed a CSA on behalf of CORPUD and submitted a CSA Report to DWQ.
In January 2003, DWQ requested further site assessment to meet the requirements of 15A NCAC 2L.01 06(d)
relating to the conditions at the NRWWTP. A Supplemental Site Assessment (SSA) was completed and the
report was submitted in September 2003 (ENSR, 2003). A Revised 2L Corrective Action Plan (RCAP) was
submitted to DWQ. DWQ approved the RCAP with the condition that CORPUD obtain a variance from certain
EMC regulations.
On December 1, 2005, CORPUD filed an application for a variance from EMC regulations 15A NCAC .0106(k)
and 15A NCAC 02L.0107(k)(3)(A) (Variance Application). Although the Variance Application had no bearing
on the issue of increased nitrogen loadings to surface waters (because a groundwater CAP that fully complies
with the EMC's rules would do little if anything to reduce such loadings), to demonstrate its overall commitment
to environmental protection, CORPUD proposed that the variance be conditioned on CORPUD offsetting the
increased nitrogen loadings to surface water. Specifically, in consultation with DWQ, CORPUD proposed
including in the NRWWTP's discharge permit a debit against CORPUD's annual nitrogen loading limit for the
NRWWTP. Based on a very conservative estimate of the amount of nitrogen offset required, CORPUD
agreed to accept a condition in its NPDES permit that would require CORPUD to debit 123,000 pounds
(decreasing over time) in the year following the approval of the Variance Application against its total nitrogen
effluent limit of 676,417 pounds per year (Nitrogen Offset).
' During the public comment process on the Variance Application, DWQ and CORPUD received a number of
public comments expressing concern about the increased nitrogen loading to surface waters in the Neuse
River basin and about the adequacy of the Nitrogen Offset as a means of addressing this issue. CORPUD
therefore agreed to stay the Variance Application and to evaluate other options for addressing the increased
nitrogen loads to surface waters.
' The purpose of this Design Report is to present design criteria for three subsurface flow (SSF) constructed
wetlands (CWs) that are intended to address nitrogen concentrations in three streams at the NRWWTP.
n
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' AECOM Environment
1.1 Report organization
' The Design Report is organized as follows:
• Section 1: Introduction and Site Investigation Summary
' • Section 2: Subsurface Flow Wetland Design Criteria
• Section 3: Maintenance and Monitoring Plan
' • Section 4: References Cited
1.2 Site background and history
' 1.2.1 Site description
The NRWWTP consists of approximately 1,466 acres of mostly contiguous farmland owned or leased by
l CORPUD and divided into numbered fields. Properties surrounding the Site consist of residential properties,
farmland, and state owned forestland. The northern and eastern Site boundaries border a 3.6-mile section of
the Neuse River, and Beddingfield Creek bounds the Site to the south. Topographically, the Site ranges in
' elevation from an approximate high of 280 feet above mean sea level (ft msl) in upland areas to an
approximate low of 140 ft msl at the Neuse River (ENSR, 2002). A layout of the facility, associated biosolids
application fields, and recent nitrate concentrations in surface water and groundwater are depicted on Figure
2.
The Neuse River is classified as a Class C NSW (nutrient sensitive water) from the Falls Lake Dam to the
mouth of Beddingfield Creek. From the mouth of Beddingfield Creek to approximately 0.2 miles downstream
' of Johnson County State Road 1700, the Neuse River is classified as Water Supply V. Beddingfield Creek is
classified as C NSW from the source to the Neuse River. No nitrate water quality standard has been
established for Class C NSW surface water. The unnamed streams located within the Site boundaries also do
not have imposed nitrate water quality standards. For surface waters classified as Water Supply V NSW, the
state-imposed nitrate water quality standard is 10 milligrams per liter (mg/L), the drinking water standard.
1.2.2 Site physiography and hydrology
' Regional Physiography
' The Site is located within the eastern Piedmont Physiographic Province of North Carolina. Area topography
consists of rolling hills dissected by narrow v-shaped drainage ways and perennial streams that drain into
Neuse River. Localized steep bluffs exist to the south along Beddingfield Creek and along the Neuse River to
the east and north of the Site. Localized bluffs in this area plateau to narrow bench-cut alluvial floodplains that
' are nearly flat with incised drainage ways to the Neuse River.
Hydrology
' Hydrogeologically, the Site is situated in a meta-igneous hydrostratigraphic unit of the eastern Piedmont of
North Carolina (Daniel and Payne, 1990). Two general hydrostratigraphic units (saprolite and PWR/upper
bedrock) characterize the regional hydrogeology. The upper saprolite unit is an unconfined aquifer that
transmits water downward to the lower semi-confined PWR and fractured confined crystalline bedrock aquifer
unit. Groundwater occurs where saprolite and localized sedimentary/alluvial deposits along the Neuse River
overlie bedrock. Groundwater movement in the saprolite is controlled by groundwater divides associated with
ridges and streams. The typical flow of groundwater occurs from upland areas (ridgelines) to perennial
streams. Surface water runoff from precipitation events is also directed from the upland areas toward the
streams in accordance with natural flow down-gradient from areas of higher to lower elevations.
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' AECOM Environment
Quantification of groundwater flow directions and rates has been provided by a calibrated, three-dimensional
' groundwater flow model. Quantification of the movement and discharge locations of nitrogen originating from
the biosolids application fields has been provided by a three-dimensional transport model that uses the flow
model to compute groundwater flow velocities. Both of these models are documented in the CSA (ENSR,
' 2002) and the SSA (ENSR, 2003)), and have been reviewed and approved by the North Carolina Division of
Water Quality's Aquifer Protection Section. Modeling results also indicate that groundwater flows from
beneath the fields toward the unnamed streams and Neuse River where discharge occurs.
' 1.3 Surface water data
Surface water samples were collected for five initial candidate sites for locating SSF constructed wetlands,
' from May 1 through November 13, 2008. These five drainage systems (streams) were sampled eight times to
evaluate nitrate concentrations. The five drainage systems are referred to as Areas and consist of the streams
between Fields 11 and 12 (Area A), Fields 6 and 12 (Area B), Fields 28 and 32 (Area C), Fields 48 and 49
(Area D) and Fields 502 and 503 (Area E). These drainage systems were those initially proposed locations to
install SSF CWs (ENSER, 2008).
1.3.1 Surface water data
Nitrate concentrations at Area A ranged from 48.3 mg/L to 66.9 mg/L with a mean of 56.3 mg/L. Area C,
nitrate concentrations ranged from 27.8 mg/L to 40.9 mg/L with a mean of 36.2 mg/L. Area E concentrations
ranged form 12.5 mg/L to 36.0 mg/L with a mean of 22.5 mg/L.
' Surface water analytical results are tabulated in Table 1. The sampling data indicate that nitrate
concentrations at Area B and D were consistently below 10 mg/L at upstream and downstream locations for
' monitoring events over the last 7 months. One exception is the monitoring event conducted on May 22, 2008
at Area B for which the downstream nitrate concentration was 12.7 mg/L. These sites have been removed
from consideration for constructing SSF wetlands at this time, based on the relatively low concentrations and
the fact that SSF wetlands are not effective at reducing already low levels of nitrates.
1.3.2 Numerical flow and fate and transport modeling
' Groundwater flow and transport models were constructed to assess the distribution of nitrate in groundwater
and the discharge of nitrogen from groundwater to receiving surface waters, focused on the Neuse River but
also including the unnamed streams in the modeling analysis. Detailed information regarding these models is
provided in the SSA Report (ENSR, 2003) and key conclusions from the report are also presented in the
' RCAP (ENSR, 2005). The peak concentration was predicted to occur in 2006. While peak discharge was
predicted to occur in 2006, nitrate loading to surface waters as a result of biosolids application was estimated
to continue for as much as 30 more years, although in diminishing amounts as the amount of available
' nitrogen decreases and the hydrologic system continues to flush with groundwater recharge.
1.4 Alternative analysis report
' An Alternatives Analysis Report (AAR) evaluating several potential treatment and mitigation options was
issued in February 2008 (ENSR, 2008). The report focused on the evaluation of remedial alternatives for five
tributaries and streams on portions of the Site with elevated surface water nitrate concentrations. Specifically,
this analysis focused on the streams between Fields 11 and 12 (Area A), Fields 6 and 12 (Area B), Fields 28
and 32 (Area C), Fields 48 and 49 (Area D) and Fields 502 and 503 (Area E). The report concluded that SSF
constructed wetlands were a feasible alternative for cost-effective reduction of nitrate-nitrogen from 3 of the
' streams at the Site that discharge to the Neuse River.

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AECOM Environment
2.0 Subsurface flow wetland design
Three separate streams are proposed for treatment, referred to as Areas A, C, and E. This section of the
Design Report provides descriptions of these three sites proposed for CWs and provides the design criteria
and specifications used for developing the detailed design.
2.1 Subsurface flow treatment wetlands
CWs have been used in varied forms to remove contaminants from water for many years. In natural wetlands,
the plants, saturated soils, and specific microbial communities are capable of assimilating, transforming, and
detoxifying contaminants substantially more effectively than would generally be encountered under natural
conditions. This includes volatile compounds, nutrients, metals, petroleum, and suspended solids. The actual
physical methods by which the "treatment" elements of the wetland environment complete their
transformations include settling and separation of suspended solids, along with associated metabolization,
sequestration, and chemical transformations.
Denitrification is a key chemical transformation treatment mechanism that exists in natural and CWs that
provide regular anaerobic conditions. Denitrification is a microbially assisted process by which nitrate nitrogen
is transformed to nitrogen gas (N2) that is harmlessly volatilized to the atmosphere, as shown below.
2NO3- + 10e- + 12H+ --* N2 + 61-120
Denitrification is the most significant of the nitrate removal mechanisms in wetland environment, although plant
uptake and removal through solids settling also account for nitrate removal to a lesser extent (Hiscock et al.,
1991, Kadlec and Knight, 1996). Accordingly, the type of CW best suited to treat nitrate, especially when NH3
and TKN are not of significant concern, is a SSF wetland, wherein a porous media bed is used to support a
microbial community and becomes the basis for routing of water flow for treatment.
To capitalize on the natural process of denitrification, SSF systems provide an anaerobic environment. The
maintenance of this anaerobic condition is critical to development of a robust microbial community that will
actively convert nitrate to N2. A constant carbon source, typically provided through wetland plants, is also
required to support microbial communities. An additional advantage of SSF CWs is the simultaneous
conversion of trace ammonia to nitrate nitrogen, and its subsequent conversion to N2, if the nitrate produced
via ammonification remains resident in the CW for an adequate period.
Fundamental design concepts include the following:
• Use of an impermeable liner beneath the CW to prevent loss of surface water to underlying soils.
• Use of a porous media based upon a gravel matrix, initially amended with a carbon source with a high
carbon:nitrogen (C:N) ratio.
• Construction of an initial sub cell located below the hydraulic control reservoir providing a organic
carbon source.
• Residence time of a minimum of 2 days.
• Flow control and stabilization devices incorporated in the systems, including headwalls or retention
dams with high and low flow controls, and rip rap lined channels at the point of flow return to each
native stream channel.
• Use of a permeable geotextile atop the treatment matrix, serving to separate the matrix from the
overlying wetland vegetation and growth medium.
2-1 April 2009

' above each CW.
Four to eight inches of an amended soil growth medium
' Installation of native wetland sedges and rushes.
• Use appropriate sedimentation and erosion controls.
' Wetland size was determined using the following formula from Kadlec and Knight (1996):
A _ 0.0365 X Q) X In Ci
k Ce
' Where:
' A = Wetland area, acres
Q = Design flow, cubic feet per second
k= Aerial rate constant, ft per year
' Ci= Influent concentration, mg/L
Ce=Target effluent concentration, Mg/L
A variety of assumptions and estimates were made to develop the sizing calculations. A list of the significant
assumptions used includes the following:
' . Flow rates were based upon measured flow rates obtained during Summer 2008,
• NO3- concentration was based on previous surface water sampling.
' • The k20 rate constant was assumed to be 50 m/yr (standard literature value for SSF CWs),
Background concentrations of NO3- were considered insignificant and not included in the sizing
calculation,
' • Concentration of NH3 was not included in the sizing calculation,
• pH was assumed to be close to neutral,
' . It was assumed that residence time was a minimum of 48 hours.
The calculations used for sizing each wetland are included in Appendix B.
' Each CW includes a small reservoir as part of its design. The function of the reservoirs is multifold, and
includes provision of measured flow to the treatment wetland promoting continuous anaerobic conditions, as
well as preventing erosive velocity flows from damaging the treatment system. Each reservoir includes a low
' elevation orifice to allow regular "design" flows to the treatment wetland. Each system also employs an initial
cell introducing a carbon source, which could employ corn or soybeans, or other organic carbon sources.
' Plants for each CW will include a typical distribution of soft rush (Juncus effuses), wool grass (Scirpus
cyperinus), and sedge (Carex crinate), planted as sprigs at a 2-foot spacing, nominally. The Planting Plan for
the CW systems is also described in Appendix A, Figure C-8.
' 2.2 Subsurface flow wetland Area A
The following provides a description of the proposed CW locations followed by a description of the CW and
' associated structures.
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AECOM Environment
2.2.1 Area A overview
This area consists of a ditched stream system located to the south of Field 12 (Appendix A, Figure C-2). The
main stream or drainage feature originates along the eastern edge of Field 10. The stream flows in a northerly
direction for approximately 1,500 feet, passing beneath a dirt road until it converges with a second small
drainage feature or tributary. The stream then flows north for approximately 150 feet and then takes a sharp
turn to the east. It flows east along the south edge of Field 12 for approximately 500 feet and then enters a
wooded area. At this point the stream becomes more naturalized. The stream then discharges into the Neuse
' River. This stream system drains approximately 55 acres.
The main stream has consistent base flow, while the small secondary tributary is often dry. Both streams have
' been heavily ditched and channelized. Stream side vegetation consists of herbaceous vegetation. Both sides
of the streams are bounded by open fields. There was no riparian vegetation (trees or shrubs) observed in the
area of the proposed CW. Stream buffers are indicated along this stream in accordance with Neuse Buffer
rules.
' 2.2.2 Area A subsurface flow wetland design
' One of the key controlling parameters of Area A is that base flow within the stream is quite low during the
summer. Flow measurements obtained from May through September, 2008 ranged from 0.001 to 0.01 cubic
feet per second (cfs). With such a low base flow, it will be necessary to augment flow during the summer to
maintain the anaerobic conditions in the CW to maintain the denitrification process. Therefore, a hydraulic
' control reservoir (small pond) was incorporated into the design to help control and supplement base flow
(Appendix A, Figure C-2).
' The small hydraulic control reservoir allows for a flow rate of 0.1 cfs. This design rate is intended to allow for
the treatment of base flow as well as a significant amount of stormwater flow. An added benefit of maintaining
a 0.1 cfs flow through the treatment wetland is that it will elongate the hydrograph and allow for an augmented
' base flow downstream of the discharge point of the treatment wetland. The area downstream of the discharge
point is the naturalized stream channel. This portion of the stream channel has been observed to be dry
during the summer even during periods where base flow was observed further upstream.
The hydraulic control reservoir was designed to hold enough water to maintain a 0.1 cfs flow for two weeks
without additional input of water.
' The treatment wetland at Area A is approximately 0.5 acres in size. Based upon a design flow of 0.1 cfs, an
instream nitrate concentration of 56 mg/L, and a target concentration of 15 mg/L, a treatment wetland of
approximately 0.58 acres is required. However, the treatment wetland will be approximately 300 feet in length,
' providing an estimated residence time of 4 to 5 days. This increase in residence time, over the 2 day minimum
allows for a slightly smaller CW.
2.3 Subsurface flow wetland Area C
The following provides a description of the proposed CW locations followed by a description of the CW and
associated structures.
' 2.3.1 Area C overview
This site consists of converging stream system that collectively drain approximately 330 acres. The streams
originate to the west of the site and flow in an easterly direction, eventually converging at the site to form one
stream that flows through three culverts beneath a gravel road. The stream then flows through a wide wetland
area before its confluence with the Neuse River. The stream channel is not well defined in the upper part of
' this wetland. At a minimum, the streams each have a narrow riparian buffer present. A small wetland area is
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AECOM Environment
also present above (west) of the road (Appendix A, Figure C-3). An open agricultural field (Field 28) is located
east of the road and north of the wetland (Appendix A).
Flow measurements obtained from May through October, 2008 ranged from 0.03 to 0.57 cfs with an average
of 0.24 cfs. The streams in this watershed are shown on the Wake County Soil Survey (SCS, 1970) mapping,
and are therefore subject to the Neuse Buffer rules.
' 2.3.2 Area C subsurface flow wetland design
The CW for this site is proposed to be located in the agricultural field east of the road and north of the stream
and wetland area (Appendix A, Figure C-3). This location and design configuration was selected to minimize
' wetland and stream buffer impacts. The existing road and related embankment that crosses the stream at this
site will be utilized to form a small storage reservoir.
Since baseflow is approximately 0.24 cfs, the perforated riser pipe is designed to transmit this baseflow to the
treatment wetland. A small hydraulic control reservoir was designed to maintain the 0.24 cfs flow, as well as
provide some volume of additional water that may be used to maintain flow in the CW during drier periods.
' The CW at Area C is approximately 1.05 acres in size. Based upon a design flow of 0.24 cfs, an instream
nitrate concentration of 36 mg/L, and a target concentration of 15 mg/L, a treatment wetland of 0.93 acres is
required. A length of 380 feet will provide an estimated residence time of 3 to 4 days.
2.4 Subsurface flow wetland Area E
The following provides a description of the proposed CW locations followed by a description of the CW and
associated structures.
2.4.1 Area E overview
The primary feature of Area E is an existing pond that will serve as the hydraulic reservoir for the treatment
wetland (Appendix A, Figure C-3). The stream originates approximately 0.75 miles west of the pond and flows
in an easterly direction. From the pond, the stream continues for approximately 1,700 feet until it flows into
' Beddingfield Creek and eventually discharges to the Neuse River. The stream drains approximately 130 acres
above the site.
The farm pond was created by damming the stream with a 10 to 15 foot high dam. Water flows out of the
northeast corner of the pond into an incised channel and eventually back into the original stream channel.
There is no weir, standpipe, formal spillway, or other water control structure associated with the pond.
Open agricultural fields are located to the north and south of the pond, and there is a narrow buffer of riparian
vegetation around the pond. The riparian buffer varies from 0 to 80 feet wide upstream of the pond. Below the
pond, the stream flows through a small ravine with a well-vegetated riparian buffer.
1
Flow measurements obtained from May through October, 2008 ranged from 0.03 to 0.1 cfs with an average of
0.05 cfs. The stream and pond are shown on the Wake County Soil Survey (SCS, 1970) mapping, and are
therefore subject to the Neuse Buffer rules.
2.4.2 Area E subsurface flow wetland design
The CW for this area is proposed to be located in the agricultural field south of the pond (Appendix A, Figure
C-3). A perforated riser pipe will be placed in the southeast corner of the pond and will provide water to the
treatment wetland. Additionally, the existing overflow area in the northeast corner of the pond will be repaired
to prevent further headcutting and degradation of the area.
2-4 April 2009
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AECOM Environment
Base flow is approximately 0.05 cfs. However, the existing pond may serve as a relatively large hydraulic
reservoir and may allow for treatment of flows well above base flow. Therefore, the CW was designed to treat
0.2 cfs.
' Based upon a design flow of 0.2 cfs, an instream nitrate concentration of 22.5 mg/L, a CW of 0.36 acres is
required. However, a slightly larger wetland is necessary to obtain the residence time necessary to provide
adequate nitrate reduction. Therefore, a wetland about 0.6 acres in size was designed. A length of 300 feet
will provide an estimated residence time of 3 to 4 days.
' 2.5 Potential effectiveness
' AECOM's analysis of the use of SSF CWs at the Site is based upon experience in design and construction of
CWs as well as consideration of site-specific factors and technology literature review. Both in AECOM's direct
experience as well as from review of the large body of available data on such systems, the estimated
functional efficacy of such systems on nitrate removal has been documented to range between 55 and 90
percent (Kadlec et al., 1996, Hammer, 1989), though significant variability is observed based upon influent
nitrate concentration and system residence time.
The calculations that are provided in this report have been prepared to design treatment wetlands needed to
remove nitrates to 15 mg/L. The amount of nitrates expected in the streams at the NRWWTP Site (25-56
mg/L) is a "mid-range" amount when compared to the range of nitrate in systems designed for its removal
based upon literature studies. Treatment to a goal of 15 mg/L represents a reduction in nitrate-ranging from
33 to 73 percent based on available surface water nitrate values. Table 2 presents anticipated nitrate removal
for the treatment wetlands.

G
2-5 April zoos

3.0 Maintenance and monitoring plan
AECOM Environment
The following Maintenance and Monitoring Plan will be implemented to ensure that the subsurface flow
constructed wetlands are functioning as designed as well as to assist in estimating nitrate removal rates
achieved by the CWs.
3.1 Monitoring plan
Water quality parameters for the three CWs will be monitored on a monthly basis for the first two years. After
' two years, water quality will be monitored on a quarterly basis. Surface water samples within the stream will
be collected both upstream and downstream of each CW. Additionally, effluent from the SSF CW will be
sampled. Water samples will be analyzed for the following parameters:
• Total nitrogen
• Nitrate nitrogen
' • Total dissolved solids
• Electrical conductivity
' • Temperature
• pH
' Additionally, flow into the SSF CWs will be measured daily. Rainfall at the NRWWTP will be monitored and
recorded.
An annual report describing the monitoring will be provided to DWQ by January 31st of each year.
' 3.2 Maintenance plan
' Monthly inspections are proposed for the SSF CW systems. The monthly inspections are designed to
determine whether the treatment wetlands are structurally intact and functioning properly. These inspections
will include assessments of structural integrity, flow routing, and operational functionality. Monthly inspections
will be conducted for the first 2 years as part of the overall monitoring program, followed by quarterly
monitoring for the following 3 years. Observations will be recorded and structural failures will be noted and
photographed, notifying the DWQ in writing within 30 days of such an instance, with repairs to be made within
30 days of observation as practicable.
A Maintenance Checklist is provided in Appendix C.
3.3 Buffer planting and maintenance
As indicated on the design drawings in Appendix A, buffers that are consistent with 15A NCAC 02B.0233(6)
will be established surrounding the stream segments and hydraulic control reservoirs. The constructed
' wetlands were designed such that the systems are outside of the buffers to be established for the stream
segments and hydraulic control reservoirs. The existing stream buffers undisturbed by construction of the
CWs will be maintained in their present natural vegetated state. Disturbed buffer areas and the future Zone 1
' and Zone 2 buffers around the hydraulic control reservoir at Site A will be established with native grasses
consistent with the surrounding area (Wrens-Abruzzi rye will be planted in disturbed areas, as indicated in the
design drawings. The future Zone 1 buffer in this area will also be established with suitable trees will be
' planted along the south and west side of the reservoir as appropriate and as needed. A berm is included in
3-1 April zoos

u
AECOM Environment
the north and east side of the reservoir design at proposed created wetland A: tree plantings are not
' suggested in this area in an effort to avoid potential stability issues along the berm.
Vegetated buffer areas will be inspected on a regular basis as part of overall facility operations at NRVVVVTP.
' Descriptions of the vegetation in the buffer areas will be included in the annual monitoring report.
C
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1
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C

I
3-2 Apd12009
AECOM Environment
4.0 References cited
Daniel III, C.C. and Payne, R.A., 1990. Hydrogeologic Unit Map of the Piedmont and Blue Ridge
ENSR, 2002, Comprehensive Site Assessment, City of Raleigh, Neuse River Waste Water Treatment Plant,
December.
ENSR, 2003, Supplemental Site Assessment, City of Raleigh, Neuse River Waste Water Treatment Plant,
December.
ENSR, 2008, Alternatives Analysis Report and Mitigation Plan for Addressing Increased Nitrogen Loading to
Surface Water at the Neuse River Wastewater Treatment Plant, City of Raleigh, February.
Hammer, D.A, 1989. Constructed Wetlands for Wastewater Treatment. Lewis CRC Publishers, 645 pp.
Hiscock, K.M., Lloyd, J.W. and D.N. Lerner, 1991. Review of natural and artificial denitrification of
groundwater. Water Research vol. 25, p. 1099-1111.
Kadlec, R. and R. Knight, 1996. Treatment Wetlands. CRC Press. 928 pp.
US Department of Agriculture, Soil Conservation Service. 1970. Soil Survey, Wake County, North Carolina.
4-1 April 2009

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1
1 Appendix B
1 Subsurface Flow Wetland Design Calculations
1

J

AECOM Environment
April 2009
1
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1
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1
Design flow
Conversion of cfs to M3 /day
Areal rate constant
Influent Concentration
Effluent concentration
Convert ha to ac
AREA A
Design flow
Areal rate constant
Influent Concentration
Effluent concentration
Wetland Area
TREATMENT WETLAND SIZE
Q cubic feet per second
2477
K meters per year
Ci milligrams per Liter AREA = (0.0365 x Q/K) x LN(Ci/Ce)
Ce milligrams per Liter
2.47
Q
K
Ci
Ce
0.1 cfs
50 m/y
56 mg/L
15 mg/L
244.7 M3 /day
0.58
Acres
Design flow Q 0.01 cfs 24.47 M3 /day
Areal rate constant K 50 m/y
Influent Concentration Ci 56 mg/L
Effluent concentration Ce 15 mg/L
Wetland Area 0.06 Acres Treat for 0.01 cfs Design Flow
Design flow Q 0.1 cfs 244.7 M3 /day
Areal rate constant K 50 m/y
Influent Concentration Ci 60 mg/L
Effluent concentration Ce 15 mg/L
Wetland Area 0.61 Acres Treat 60 mg/L Influent concentration
Design flow Q 0.01 cfs 24.47 M3 /day
Areal rate constant K 50 m/y
Influent Concentration Ci 50 mg/L
Effluent concentration Ce 10 mg/L
Wetland Area 0.07 Acres Treat .01 cfs to 10 mg/L
1
1

t
1
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1
TREATMENT WETLAND SIZE
Design flow Q cubic feet per second
Conversion of cfs to M3 /day 2477
Areal rate constant K meters per year AREA = (0.0365 x Q/K) x LN(Ci/Ce)
Influent Concentration Ci milligrams per Liter
Effluent concentration Ce milligrams per Liter
Convert ha to ac 2.47
AREA C
Design flow Q 0.24 cfs 587.28 M3 /day
Areal rate constant K 50 m/y
Influent Concentration Ci 36 mg/L
Effluent concentration Ce 15 mg/L
Wetland Area 0.93 Acres
Design flow Q 0.24 cfs 587.28 M3 /day
Areal rate constant K 50 m/y
Influent Concentration Ci 40 mg/L
Effluent concentration Ce 10 mg/L
Wetland Area 1.47 Acres Treat to 10 mg/L effluent limit
Design flow Q 0.24 cfs 587.28 M3 /day
Areal rate constant K 50 m/y
Influent Concentration Ci 40 mg/L
Effluent concentration Ce 15 mg/L
Wetland Area 1.04 Acres Treat up to 40 mg/L
Design flow Q 0.2 cfs 489.4 M3 /day
Areal rate constant K 50 m/y
Influent Concentration Ci 40 mg/L
Effluent concentration Ce 15 mg/L
Wetland Area 0.07 Acres

1
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1
TREATMENT WETLAND SIZE
Design flow Q cubic feet per second
Conversion of cfs to M3 /day 2477
Areal rate constant K meters per year
Influent Concentration Ci milligrams per Liter AREA = (0.0365 x Q/K) x LN(Ci/Ce)
Effluent concentration Ce milligrams per Liter
Convert ha to ac 2.47
AREA E
Design flow Q 0.2 cfs 489.4 M3 /day
Areal rate constant K 50 m/y
Influent Concentration Ci 22.5 mg/L
Effluent concentration Ce 15 mg/L
Wetland Area 0.36 Acres
Design flow Q 0.2 cfs 489.4 M3 /day
Areal rate constant K 50 m/y
Influent Concentration Ci 30 mg/L
Effluent concentration Ce 15 mg/L
Wetland Area 0.61 Acres Treat 30 mg/L
Design flow Q 0.2 cfs 489.4 M3 /day
Areal rate constant K 50 m/y
Influent Concentration Ci 22.5 mg/L
Effluent concentration Ce 10 mg/L
Wetland Area 0.72 Acres Treat to 10 mg/L
Design flow Q 0.1 cfs 244.7 M3 /day
Areal rate constant K 50 m/y
Influent Concentration Ci 22.5 mg/L
Effluent concentration Ce 10 mg/L
Wetland Area 0.36 Acres

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Treatment Wetland Dimensions
Area (sq ft) Width x Depth
Velocity (ft/sec) Discharge x Area
Length (ft) Velocity x Residence Time

Discharge (Q) = 0.1 cfs
Depth = 2 ft
Residence Time = 2 days or 172800 sec
Width (ft) Area (sq ft) Velocity (ft/sec) Length (ft)
85 170 0.0006 102
80 160 0.0006 108
75 150 0.0007 115
70 140 0.0007 123
Discharge (Q) = 0.1 cfs
Depth = 2 ft
Residence Time = 3 days or 259200 sec
Width (ft) Area (sq ft) Velocity (ft/sec) Length (ft)
85 170 0.0006 152
80 160 0.0006 162
75 150 0.0007 173
70 140 0.0007 185
Discharge (Q) = 0.1 cfs
Depth = 2 ft
Residence Time = 4 days or 345600 sec
Width (ft) Area (sq ft) Velocity (ft/sec) Length (ft)
85 170 0.0006 203
80 160 0.0006 216
75 150 0.0007 230
70 140 0.0007 247
1
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1
1
Treatment Wetland Dimensions
Area (sq ft) Width x Depth
Velocity (ft/sec) Discharge x Area
Length (ft) Velocity x Residence Time

Discharge (Q) = 0.24 cfs
Depth = 2 ft
Residence Time = 2 days or 172800 sec
Width (ft) Area (sq ft) Velocity (ft/sec) Length (ft)
100 200 0.0012 207
110 220 0.0011 189
120 240 0.0010 173
130 260 0.0009 160
Discharge (Q) = 0.24 cfs
Depth = 2 ft
Residence Time = 3 days or 259200 sec
Width (ft) Area (sq ft) Velocity (ft/sec) Length (ft)
100 200 0.0012 311
110 220 0.0011 283
120 240 0.0010 259
130 260 0.0009 239
Discharge (Q) = 0.24 cfs
Depth = 2 ft
Residence Time = 4 days or 345600 sec
Width (ft) Area (sq ft) Velocity (ft/sec) Length (ft)
100 200 0.0012 415
110 220 0.0011 377
120 240 0.0010 346
130 260 0.0009 319
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1
Treatment Wetland Dimensions
Area (sq ft) Width x Depth
Velocity (ft/sec) Discharge x Area
Length (ft) Velocity x Res idence Time
A.W
Discharge (Q) = 0.2 cfs
Depth = 2 ft
Residence Time = 2 days or 172800 sec
Width (ft) Area (sq ft) Velocity (ft/sec) Length (ft)
100 200 0.0010 173
90 180 0.0011 192
80 160 0.0013 216
70 140 0.0014 247
Discharge (Q) = 0.2 cfs
Depth = 2 ft
Residence Time = 3 days or 259200 sec
Width (ft) Area (sq ft) Velocity (ft/sec) Length (ft)
100 200 0.0010 259
90 180 0.0011 288
80 160 0.0013 324
70 140 0.0014 370
Discharge (Q) = 0.2 cfs
Depth = 2 ft
Residence Time = 4 days or 345600 sec
Width (ft) Area (sq ft) Velocity (ft/sec) Length (ft)
100 200 0.0010 346
90 180 0.0011 384
80 160 0.0013 432
70 140 0.0014 494

' Nitrate Removal Rates
Conversion of cfs to M3 /day 2477 m3/day
' Conversion of m3/day to L 1000
Conversion of milligrams to Ibs 0.0000022
1
Treatment Influent Nitrate Target Amount Yearly
Wetland Flow Rate Concentration Concentration Removed Removal
cfs mg/L mg/L mg/L Ibs
A 0.1 56 15 41 8155
' C 0.24 36 15 21 10025
E 0.2 22.5 15 7.5 2984

1
1

L

Sub-Basil
Storage Pond A
Subcaf Reach on Link

Site A Storage Pond Type 1124-hr t yr Rainfall=3.70"
' Prepared by Earth Tech Page 2
HydroCAD® 8.00 s/n 003562 © 2006 HydroCAD Software Solutions LLC 12/22/2008
' Pond 2P: Storage Pond A
Inflow Area = 55.000 ac, Inflow Depth = 1.28" for 1 yr event
Inflow = 20.11 cfs @ 13.58 hrs, Volume= 5.846 of
Outflow 6.14 cfs @ 15.92 hrs, Volume= 5.470 af, Atten= 69%, Lag= 140.2 min
Primary 0.08 cfs @ 15.92 hrs, Volume= 2.632 of
Secondary = 6.06 cfs @ 15.92 hrs, Volume= 2.839 of
' Routing by Stor-Ind method, Time Span= 0.00-750.00 hrs, dt= 0.10 hrs
Peak Elev= 165.40' @ 15.92 hrs Surf.Area= 46,803 sf Storage= 144,825 cf
Plug-Flow detention time= 8,349.0 min calculated for 5.469 of (94% of inflow)
Center-of-Mass det. time= 8,318.3 min ( 9,282.8 - 964.4 )
Volume Invert Avail.Storaae Storage Description
' #1 162.00' 222,524 cf Custom Stage Data (Prismatic)Listed below
Elevation Surf.Area Inc.Store Cum.Store
(feet) (sq-ft) (cubic-feet) (cubic-feet)
162.00 38,035 0 0
165.00 45,731 125,649 125,649
167.00 51,144 96,875 222,524
' Device Routing Invert Outlet Devices
#1 Secondary 165.00' 9.0' long x 16.0' breadth Broad-Crested Rectangular Weir
' Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63
#2 Secondary 166.00' 3.0' long x 13.0' breadth Broad-Crested Rectangular Weir
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
' Coef. (English) 2.60 2.64 2.70 2.66 2.65 2.66 2.65 2.63
#3 Primary 161.00' 0.4" Vert. Orifice/Grate X 3.00 columns
X 4 rows with 12.0" cc spacing C= 0.600
' Primary Outflow Max=0.08 cfs @ 15.92 hrs HW=165.40' (Free Discharge)
L3=Orifice/Grate (Orifice Controls 0.08 cfs @ 8.00 fps)
19,econdary OutFIow Max=6.05 cis @ 15.92 hrs HW=165.40' (Free Discharge)
' 1=Broad-Crested Rectangular Weir(Weir Controls 6.05 cfs @ 1.70 fps)
2=Broad-Crested Rectangular Weir( Controls 0.00 cfs)
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Site A Storage Pond Type 1124-hr 9 yr Rainfall=3.70"
Prepared by Earth Tech Page 3
HydroCAD® 8.00 s/n 003562 © 2006 HydroCAD Software Solutions LLC 12/22/2008
Pond 2P: Storage Pond A
Hydrograph
20.11 CfS ® Inflow 1, .1
22 Inflow Area=55.000 ac pq Outflow
20 Peak Elev=165.40' ¦ Primary
Storage=144,825 cf ® Secondary
18 ------------ ------------------- - --- -----
16 -------------------- ------------------------
14 ----------------------------------------------------
1?_ ----------- ----------- --------------
S
6.06 cfs ------------- -- ---------- - - - - - - - - - --- - - - - - - - - -
6 --------------------------------------------------
0 fis
0 100 200 300 400 500 600 700
Time (hours)
Pond 2P: Storage Pond A
Stage-Discharge
1
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d
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0
w
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m
W
1
1
m? Total
® Primary
¦ Secondary
0 40 60
D1SLharge (cfs)
1
Site A Storage Pond Type 1124-hr 1 yr Rainfall=3.70"
' Prepared by Earth Tech Page 4
HydroCADO 8.00 s/n 003562 © 2006 HydroCAD Software Solutions LLC 12/2212008

1

r

I
1

Hydrograph for Pond 2P: Storage Pond A
Time Inflow Storage Elevation Outflow Primary Secondary
(hours) (cfs) cubic-feet) (feet) (cfs) (cfs) (cfs)
0.00 0.00 0 162.00 0.00 0.00 0.00
20.00 2.38 136,611 165.23 2.69 0.08 2.61
40.00 0.00 123,443 164.95 0.08 0.08 0.00
60.00 0.00 118,038 164.82 0.07 0.07 0.00
80.00 0.00 112,805 164.69 0.07 0.07 0.00
100.00 0.00 107,746 164.57 0.07 0.07 0.00
120.00 0.00 102,864 164.46 0.07 0.07 0.00
140.00 0.00 98,166 164.34 0.06 0.06 0.00
160.00 0.00 93,659 164.24 0.06 0.06 0.00
180.00 0.00 89,357 164.13 0.06 0.06 0.00
200.00 0.00 85,297 164.04 0.05 0.05 0.00
220.00 0.00 81,536 163.95 0.05 0.05 0.00
240.00 0.00 77,893 163.86 0.05 0.05 0.00
260.00 0.00 74,345 163.78 0.05 0.05 0.00
280.00 0.00 70,891 163.69 0.05 0.05 0.00
300.00 0.00 67,534 163.61 0.05 0.05 0.00
320.00 0.00 64,273 163.53 0.04 0.04 0.00
340.00 0.00 61,112 163.46 0.04 0.04 0.00
360.00 0.00 58,050 163.39 0.04 0.04 0.00
380.00 0.00 55,092 163.32 0.04 0.04 0.00
400.00 0.00 52,239 163.25 0.04 0.04 0.00
420.00 0.00 49,498 163.18 0.04 0.04 0.00
440.00 0.00 46,876 163.12 0.04 0.04 0.00
460.00 0.00 44,390 163.06 0.03 0.03 0.00
480.00 0.00 42,083 163.00 0.03 0.03 0.00
500.00 0.00 39,921 162.95 0.03 0.03 0.00
520.00 0.00 37,800 162.90 0.03 0.03 0.00
540.00 0.00 35,720 162.85 0.03 0.03 0.00
560.00 0.00 33,680 162.80 0.03 0.03 0.00
580.00 0.00 31,682 162.76 0.03 0.03 0.00
600.00 0.00 29,725 162.71 0.03 0.03 0.00
620.00 0.00 27,809 162.66 0.03 0.03 0.00
640.00 0.00 25,935 162.62 0.03 0.03 0.00
660.00 0.00 24,103 162.58 0.03 0.03 0.00
680.00 0.00 22,312 162.53 0.02 0.02 0.00
700.00 0.00 20,564 162.49 0.02 0.02 0.00
720.00 0.00 18,859 162.45 0.02 0.02 0.00
740.00 0.00 17,196 162.41 0.02 0.02 0.00

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Site A Storage Pond Type 11 24-hr 9 yr Rainfall=3.70"
' Prepared by Earth Tech Page 5
ydroCAD® 8.00 s/n 003562 © 2006 HvdroCAD Software Solutions LLC 12/22/2008
Stage-Discharge for Pond 2P: Storage Pond A
Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs)
162.00 0.00 0.00 0.00.
162.05 0.02 0.02 0.00
162.10 0.02 0.02 0.00
162.15 0.02 0.02 0.00
162.20 0.02 0.02 0.00
162.25 0.02 0.02 0.00
162.30 0.02 0.02 0.00
162.35 0.02 0.02 0.00
162.40 0.02 0.02 0.00
162.45 0.02 0.02 0.00
162.50 0.02 0.02 0.00
162.55 0.02 0.02 0.00
162.60 0.03 0.03 0.00
162.65 0.03 0.03 0.00
162.70 0.03 0.03 0.00
162.75 0.03 0.03 0.00
162.80 0.03 0.03 0.00
162.85 0.03 0.03 0.00
162.90 0.03 0.03 0.00
162.95 0.03 0.03 0.00
163.00 0.03 0.03 0.00
163.05 0.03 0.03 0.00
163.10 0.03 0.03 0.00
163.15 0.04 0.04 0.00
163.20 0.04 0.04 0.00
163.25 0.04 0.04 0.00
163.30 0.04 0.04 0.00
163.35 0.04 0.04 0.00
163.40 0.04 0.04 0.00
163.45 0.04 0.04 0.00
163.50 0.04 0.04 0.00
163.55 0.04 0.04 0.00
163.60 0.05 0.05 0.00
163.65 0.05 0.05 0.00
163.70 0.05 0.05 0.00
163.75 0.05 0.05 0.00
163.80 0.05 0.05 0.00
163.85 0.05 0.05 0.00
163.90 0.05 0.05 0.00
163.95 0.05 0.05 0.00
164.00 0.05 0.05 0.00
164.05 0.06 0.06 0.00
164.10 0.06 0.06 0.00
164.15 0.06 0.06 0.00
164.20 0.06 0.06 0.00
164.25 0.06 0.06 0.00
164.30 0.06 0.06 0.00
164.35 0.06 0.06 0.00
164.40 0.07 0.07 0.00
164.45 0.07 0.07 0.00
164.50 0.07 0.07 0.00
164.55 0.07 0.07 0.00
164.60 0.07 0.07 0.00
Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs)
164.65 0.07 0.07 0.00
164.70 0.07 0.07 0.00
164.75 0.07 0.07 0.00
164.80 0.07 0.07 0.00
164.85 0.07 0.07 0.00
164.90 0.08 0.08 0.00
164.95 0.08 0.08 0.00
165.00 0.08 0.08 0.00
165.05 0.35 0.08 0.27
165.10 0.84 0.08 0.76
165.15 1.48 0.08 1.40
165.20 2,24 0.08 2.16
165.25 3.10 0.08 3.02
165.30 4.06 0.08 3.98
165.35 5.11 0.08 5.02
165.40 6.23 0.08 6.15
165.45 7.42 0.08 7.34
165.50 8.68 0.09 8.59
165.55 10.00 0.09 9.91
165.60 11.38 0.09 11.29
165.65 12.75 0.09 12.66
165.70 14.16 0.09 14.07
165.75 15.61 0.09 15.52
165.80 17.09 0.09 17.00
165.85 18.69 0.09 18.60
165.90 20.34 0.09 20.25
165.95 22.03 0.09 21.94
166.00 23.76 0.09 23.67
166.05 25.67 0.09 25.58
166.10 27.70 0.09 27.61
166.15 29.82 0.09 29,73
166.20 32.03 0.10 31.93
166.25 34.28 0.10 34.18
166.30 36.61 0.10 36.51
166.35 39.00 0.10 38.90
166.40 41.46 0.10 41.36
166.45 43.95 0.10 43.85
166.50 46.50 0.10 46.40
166.55 49.11 0.10 49.01
166.60 51.77 0.10 51.67
166.65 54.50 0.10 54.40
166,70 57.28 0.10 57.17
166.75 60.10 0.10 60.00
166.80 62.98 0,10 62.87
166.85 65.91 0.10 65.81
166,90 68.90 0.10 68.79
166.95 71.93 0.11 71.82
167,00 75.00 0.11 74.90

Sub-Basin
Sub-Basin 1
Storage Pond A
S?ticat?: Reach on Link.
t- .... ....... . .... ....... .
I.
Site A Storage Pond Type 1124-hr 1 yr Rainfall=3.70"
I Prepared by Earth Tech Page 2
HVdroCAM 8,00 stn 003562 © 2006 HVdroCAD Software Solutions LLC 12/22/2008
' Pond 2P: Storage Pond A
Inflow Area = 55.000 ac, Inflow Depth = 1.28 for 1 yr event
Inflow = 20.11 cfs @ 13.58 hrs, Volume= 5.846 of
Outflow = 6.14 cfs @ 15.92 hrs, Volume= 5.470 af, Atten= 69%, Lag= 140.2 min
Primary 0.08 cfs @ 15.92 hrs, Volume= 2.632 of
Secondary = 6.06 cfs @ 15.92 hrs, Volume= 2.839 of
' Routing by Stor-Ind method, Time Span= 0.00-750.00 hrs, dt= 0.10 hrs
Peak Elev= 165.40' @ 15.92 hrs Surf.Area= 46,803 sf Storage= 144,825 cf
Plug-Flow detention time= 8,349.0 min calculated for 5.469 of (94% of inflow)
Center-of-Mass det. time= 8,318.3 min (9,282.8 - 964.4 )
Volume Invert Avail.Storage Storage Description
#1 162.00' 222,524 cf Custom Stage Data (Prismatic)Listed below
Elevation Surf.Area Inc.Store Cum.Store
' (feet) (sq-ft) (cubic-feet) (cubic-feet)
162.00 38,035 0 0
165.00 45,731 125,649 125,649
167.00 51,144 96,875 222,524

u

1
Device Routing Invert Outlet Devices
#1 Secondary 165.00' 9.0' long x '16.0' breadth Broad-Crested Rectangular Weir
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63
#2 Secondary 166.00' 3.0' long x 13.0' breadth Broad-Crested Rectangular Weir
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
Coef. (English) 2.60 2.64 2.70 2.66 2.65 2.66 2.65 2.63
#3 Primary 161.00' 0.4" Vert. Orifice/Grate X 3.00 columns
X 4 rows with 12.0" cc spacing C= 0.600
Primary OutFlow Max=0.08 cfs @ 15.92 hrs HW=165.40' (Free Discharge)
L3=Orifice/Grate (Orifice Controls 0.08 cfs @ 8.00 fps)
condary OutFlow Max=6.05 cfs @ 15.92 hrs HW=165.40' (Free Discharge)
I-e1=Broad-Crested Rectangular Weir (Weir Controls 6.05 cfs @ 1.70 fps)
2=Broad-Crested Rectangular Weir( Controls 0.00 cfs)

Site A Storage Pond Type 1124-hr 1 yr Rainfa11=3.70"
Prepared by Earth Tech Page 3
¦ HvdroCADO 8.00 s/n 003562 © 2006 HvdroCAD Software Solutions LLC 1 212 2120 0 8

¦ Pond 2P: Storage Pond A
d
h
Hy
rograp
11 cfs `
90 ® inflow
¦ . Inflow Area=55.000 ac Outflow
22 Peak Elev-165.40' ¦ Primary
20
1g-
" --------- Storage=144,825 cf
------------------------------------------ ¦ Secondary
16 --------- ------------------------------------------
14 -- ----------------- ------------
1? -------- -------------------------------------------
3 f S ---- ----.--------------------------- ---------
¦ 6.06 cfs`
--------
6 ------------------------------------------
0; cfs'
0
0 100 200 300 400 500 600 700
¦ Time (hours)

¦ Pond 2P: Storage Pond A
Stage-Discharge
¦ 167
166-
r. ----------------
165-'
0
> 164
W
163

162
0 40
¦ ?DISLharge (cfs)
1
1
60
k Total
¦ Primary
¦ Secondary
1
Site A Storage Pond Type 11 24-hr 9 yr Rainfall=3.70"
' Prepared by Earth Tech Page 4
HydroCADO 8.00 sln 003562 © 2006 HydroCAD Software Solutions LLC 12/22/2008
Hydrograph for Pond 2P: Storage Pond A
Time
(hours) Inflow
(cfs) Storage
(cubic-feet) Elevation
(feet) Outflow
(cfs) Primary
(cfs) Secondary
(cfs)
0.00 0.00 0 162.00 0.00 0.00 0.00
20.00 2.38 136,611 165.23 2.69 0108 2.61
40.00 0.00 123,443 164.95 0.08 0.08 0.00
60.00 0.00 118,038 164.82 0.07 0.07 0.00
80.00 0.00 112,805 164.69 0.07 0.07 0.00
100.00 0.00 107,746 164.57 0.07 0.07 0.00
120.00 0.00 102,864 164.46 0.07 0.07 0.00
140.00 0.00 98,166 164.34 0.06 0.06 0.00
160.00 0.00 93,659 164.24 0.06 0.06 0.00
180.00 0.00 89,357 164.13 0.06 0.06 0.00
200.00 0.00 85,297 164.04 0.05 0.05 0.00
220.00 0.00 81,536 163.95 0.05 0.05 0.00
240.00 0.00 77,893 163.86 0.05 0.05 0.00
260.00 0.00 74,345 163.78 0.05 0.05 0.00
280.00 0.00 70,891 163.69 0.05 0.05 0.00
300.00 0.00 67,534 163.61 0.05 0.05 0.00
320.00 0.00 64,273 163.53 0.04 0.04 0.00
340.00 0.00 61,112 163.46 0.04 0.04 0.00
360.00 0.00 58,050 163.39 0.04 0.04 0.00
380.00 0.00 55,092 163.32 0.04 0.04 0.00
400.00 0.00 52,239 163.25 0.04 0.04 0.00
420.00 0.00 49,498 163.18 0.04 0.04 0.00
440.00 0.00 46,876 163.12 0.04 0.04 0.00
460.00 0.00 44,390 163.06 0.03 0.03 0.00
480.00 0.00 42,083 163.00 0.03 0.03 0.00
500.00 0.00 39,921 162.95 0.03 0.03 0.00
520.00 0.00 37,800 162.90 0.03 0.03 0.00
540.00 0.00 35,720 162.85 0.03 0.03 0.00
560.00 0.00 33,680 162.80 0.03 0.03 0.00
580.00 0.00 31,682 162.76 0.03 0.03 0.00
600.00 0.00 29,725 162.71 0.03 0.03 0.00
620.00 0.00 27,809 162.66 0.03 0.03 0.00
640.00 0.00 25,935 162.62 0.03 0.03 0.00
660.00 0.00 24,103 162.58 0.03 0.03 0.00
680.00 0.00 22,312 162.53 0.02 0.02 0.00
700.00 0.00 20,564 162.49 0.02 0.02 0.00
720.00 0.00 18,859 162.45 0.02 0.02 0.00
740.00 0.00 17,196 162.41 0.02 0.02 0.00

Site A Storage Pond Type 1124-hr 9 yr Rainfall=3.70"
Prepared by Earth Tech Page 5
H droCAD® 8.00 s/n 003562 © 2006 H droCAD Software Solutions LLC 12/22/2008
M Stage-Discharge for Pond 213: Storage Pond A
Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs)
162.00 0.00 0.00 0.00
162.05 0.02 0.02 0.00
162.10 0.02 0.02 0.00
162.15 0.02 0.02 0.00
162.20 0.02 0.02 0.00
162.25 0.02 0.02 0.00
162.30 0.02 0.02 0.00
162.35 0.02 0.02 0.00
162.40 0.02 0.02 0.00
162.45 0.02 0.02 0.00
162.50 0.02 0.02 0.00
162.55 0.02 0.02 0.00
162.60 0.03 0.03 0.00
162.65 0.03 0.03 0.00
162.70 0.03 0.03 0.00
162.75 0.03 0.03 0.00
162.80 0.03 0.03 0.00
162.85 0.03 0.03 0.00
162.90 0.03 0.03 0.00
162.95 0.03 0.03 0.00
163.00 0.03 0.03 0.00
163.05 0.03 0.03 0.00
163.10 0.03 0.03 0.00
163.15 0.04 0.04 0.00
163.20 0.04 0.04 0.00
163.25 0.04 0.04 0.00
163.30 0.04 0.04 0.00
163.35 0.04 0.04 0.00
163.40 0.04 0.04 0.00
163.45 0.04 0.04 0.00
163.50 0.04 0.04 0.00
163.55 0.04 0.04 0.00
163.60 0.05 0.05 0.00
163.65 0.05 0.05 0.00
163.70 0.05 0.05 0.00
163.75 0.05 0.05 0.00
163.80 0.05 0.05 0.00
163.85 0.05 0.05 0.00
163.90 0.05 0.05 0.00
163.95 0.05 0.05 0.00
164.00 0.05 0.05 0.00
164.05 0.06 0.06 0.00
164.10 0.06 0.06 0.00
164.15 0.06 0.06 0.00
164.20 0.06 0.06 0.00
164.25 0.06 0.06 0.00
164.30 0.06 0.06 0.00
164.35 0.06 0.06 0.00
164.40 0.07 0.07 0.00
164.45 0.07 0.07 0.00
164.50 0.07 0.07 0.00
164.55 0.07 0.07 0.00
164.60 0.07 0.07 0.00
Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs)
164.65 0.07 0.07 0.00
164.70 0.07 0.07 0.00
164.75 0.07 0.07 0.00
164.80 0.07 0.07 0.00
164.85 0.07 0.07 0.00
164.90 0.08 0.08 0.00
164.95 0.08 0.08 0.00
165.00 0.08 0.08 0.00
165.05 0.35 0.08 0.27
165.10 0.84 0.08 0.76
165.15 1.48 0.08 1.40
165.20 2.24 0.08 2.16
165.25 3.10 0.08 3.02
165.30 4.06 0.08 3.98
165.35 5.11 0.08 5.02
165.40 6.23 0.08 6.15
165.45 7.42 0.08 7.34
165.50 8.68 0.09 8.59
165.55 10.00 0.09 9.91
165.60 11.38 0.09 11.29
165.65 12.75 0.09 12.66
165.70 14.16 0.09 14.07
165.75 15.61 0.09 15.52
165.80 17.09 0.09 17.00
165.85 18.69 0.09 18.60
165.90 20.34 0.09 20.25
165.95 22.03 0.09 21.94
166.00 23.76 0.09 23.67
166.05 25.67 0.09 25.58
166.10 27.70 0.09 27.61
166.15 29.82 0.09 29.73
166.20 32.03 0.10 31.93
166.25 34.28 0.10 34.18
166.30 36.61 0.10 36.51
166.35 39.00 0.10 38.90
166.40 41.46 0.10 41.36
166.45 43.95 0.10 43.85
166.50 46.50 0.10 46.40
166.55 49.11 0.10 49.01
166.60 51.77 0.10 51.67
166.65 54.50 0.10 54.40
166.70 57.28 0.10 57.17
166.75 60.10 0.10 60.00
166.80 62.98 0.10 62.87
166.85 65.91 0.10 65.81
166.90 68.90 0.10 68.79
166.95 71.93 0.11 71.82
167.00 75.00 0.11 74.90

1

Sub-Basi
Pond 1
(Subcat? Reach on Link.

1
Site C Roadway Culvert - Pre Type i! 24-hr 10 yr, 24-hr Rainfa11=5.04"
' Prepared by Earth Tech Page 2
HvdroCAD®8 00 sin 003562 © 2006 HydroCAD Software Solutions LLC 12/22/2008
Pond 1 P: Pond1 RaAp OVER -70PS
[93] Warning: Storage range exceeded by 44.33' D 159,CC.PAD *juAtt RE^?
[88] Warning: Qout>Qin may require Finer Routing>1 t-ftocL (>pF.s for AN 0VE0_- 11010&
[85] Warning: Oscillations may require Finer Routing>1 (ztAoW pty A-) Anv OunE_,r. > iA?1 S
Inflow Area = 321.000 ac, Inflow Depth = 2.31" for 10-yr, 24-hr event "SUST (nOIC ASS QpAO tS
OdE2-Tbeo?F_ 3,
Inflow = 460.90 cfs @ 12.48 hrs, Volume= 61.842 of
Outflow = 545.62 cfs @ 12.50 hrs, Volume= 61.842 af, Atten= 0%, Lag= 1.4 min
Primary = 545.62 cfs @ 12.50 hrs, Volume= 61.842 of
Routing by Stor-Ind method, Time Span= 4.00-30.00 hrs, dt= 0.05 hrs
Peals Elev= 205.83'@ 12.50 hrs Surf.Area= 0 sf Storage= 190,000 cf
Plug-Flow detention time= 6.8 min calculated for 61.724 of (100% of inflow)
Center-of-Mass det. time= 6.7 min ( 881.5 - 874.7 )
Volume Invert Avail.Storage Storage Description
#1 155.00' 190,000 cf Custom Stage Data Listed below
Elevation Cum.Store
(feet) (cubic-feet)
155.00 0
156.00 24,300
157.00 52,839
158.00 80,031
159.00 109,112
160.00 155,054
161.50 190,000
Device Routing Invert Outlet Devices
#1 Primary 153.00' 30.0" x 85.0' long Culvert X 3.00 Ke= 0.400
Outlet Invert= 152.50' S= 0.00597' Cc= 0.900
n= 0.012 Concrete pipe, finished
Primary OutFlow Max=543.34 cfs @ 12.50 hrs HW=205.40' (Free Discharge)
L1=Culvert (Inlet Controls 543.34 cfs @ 36.90 fps)
' Am 15 3Jd w ? Fac)Aq tiF- uSE +,ouLo Ac-ruALLY
L ?bEQ ?dr:NTS .

LdOMO L C"

jrl
Site C Roadway Culvert - Pre Type 1l 24-hr 10-yr, 24-hr Rainfall=5.04"
' Prepared by Earth Tech Page 3
HydroCAD®8 00 s/n 003562 © 2006 HydroCAD Software Solutions LLC 12/22/2008
Pond 1 P: Pond1
Hydrograph
600 545 62 cfs Linflow
Inflow Area=321.000ac mary
4 0 CfS peak Elev=205.83'
500 "
' Storage=190,000 cf
n
1
1
1
N -r..
?Ct
3 300-
0
200
100
30.0 . X 85.0 Culvert
4 6 8 10 12 14 16 18 20 22 24 26 28 30
Time (hours)
Pond 1P: Pond1
Stage-Discharge
d
v
r+
d
W
Primary
0 100 200 300 400 500
Discharge (cfs)
Site C Roadway Culvert - Pre Type 1124-hr 10-yr, 24-hr Rainfall=5.04"
Prepared by Earth Tech Page 4
HydroCAD® 8.00 s/n 003562 © 2006 HydroCAD Software Solutions LLC 12/22/2008
Hydrograph for Pond 1 P: Pond1
Time Inflow Storage Elevation Primary
(hours) (cfs) (cubic-feet) (feet) (cfs)
4.00 0.00 0 155.00 0.00
4.50 0.00 0 155.00 0.00
5.00 0.00 0 155.00 0.00
5.50 0.00 0 155.00 0.00
6.00 0.00 0 155.00 0.00
6.50 0.00 0 155.00 0.00
7.00 0.00 0 155.00 0.00
7.50 0.00 0 155.00 0.00
8.00 0.00 0 155.00 0.00
8.50 0.00 0 155.00 0.00
9.00 0.00 0 155.00 0.00
9.50 0.16 13 155.00 0.13
10.00 1.51 140 155.01 1.40
10.50 4.32 412 155.02 4.12
11.00 9.45 908 155.04 9.08
11.50 19.72 1,892 155.08 18.91
12.00 102.40 10,703 155.44 70.35
12.50 459.53 190,000 205.82 545.58
13.00 219.63 190,000 162.18 213.98
13.50 107.94 122,112 159.28 169.95
14.00 69.22 35,667 156.40 98.28
14.50 51.10 5,205 155.21 52.03
15.00 42.91 4,322 155.18 43.21
15.50 38.21 3,847 155.16 38.46
16.00 34.09 3,435 155.14 34.33
16.50 30.22 3,042 155.13 30.41
17.00 27.70 2,781 155.11 27.80
17.50 26.03 2,613 155.11 26.12
18.00 24.54 2,464 155.10 24.63
18.50 23.10 2,318 155.10 23.17
19.00 21.62 2,171 155.09 21.70
19.50 20.12 2,021 155.08 20.21
20.00 18.61 1,871 155.08 18.70
20.50 17.19 1,726 155.07 17.25
21.00 16.39 1,642 155.07 16.41
21.50 15.98 1,601 155.07 16.01
22.00 15.68 1,571 155.06 15.70
22.50 15.40 1,542 155.06 15.41
23.00 15.12 1,513 155.06 15.13
23.50 14.82 1,485 155.06 14.84
24.00 14.53 1,456 155.06 14.55
24.50 10.56 1,108 155.05 11.08
25.00 2.57 282 155.01 2.82
25.50 0.53 59 155.00 0.59
26.00 0.10 11 155.00 0.11
26.50 0.01 1 155.00 0.01
27.00 0.00 0 155.00 0.00
27.50 0.00 0 155.00 0.00
28.00 0.00 0 155.00 0.00
28.50 0.00 0 155.00 0.00
29.00 0.00 0 155.00 0.00
29.50 0.00 0 155.00 0.00
30.00 0.00 0 155.00 0.00
Site C Roadway Culvert - Pre Type 1124-hr 10-yr, 24-hr Rainfall=5.04"
' Prepared by Earth Tech Page 5
HydroCAD® 8.00 sh 003562 © 2006 HydroCAD Software Solutions LLC 12/22/2008

n

I

Elevation Primary
(feet) (cfs)
155.00 0.00
155.55 74.68
156.10 92.74
156.65 105.50
157.20 121.82
157.75 136.20
158.30 149.20
158.85 161.15
159.40 172.28
159.95 181.38
160.50 189.93
161.05 198.11
161.60 205.96
162.15 213.53
162.70 220.84
163.25 227.91
163.80 234.77
164.35 241.44
164.90 247.93
165.45 254.25
166.00 260.42
166.55 266.44
167.10 272.33
167.65 278.10
168.20 283.75
168.75 289.29
169.30 294.72
169.85 300.06
170.40 305.31
170.95 310.46
171.50 315.53
172.05 320.52
172.60 325.44
173.15 330.28
173.70 335.05
174.25 339.75
174.80 344.39
175.35 348.97
175.90 353.49
176.45 357.95
177.00 362.36
177.55 366.71
178.10 371.02
178.65 375.27
179.20 379.48
179.75 383.64
180.30 387.75
180.85 391.82
181.40 395.85
181.95 399.84
182.50 403.79
183.05 407.70
183.60 411.58
Stage-Discharge for Pond 1 P: Pond1
Elevation Primary
(feet) (cfs)
184.15 415.42
184.70 419.22
185.25 422.99
185.80 426.73
186.35 430.43
186.90 434.10
187.45 437.74
188.00 441.35
188.55 444.93
189.10 448.49
189.65 452.01
190.20 455.51
190.75 458.98
191.30 462.43
191.85 465.85
192.40 469.24
192.95 472.61
193.50 475.96
194.05 479.28
194.60 482.58
195.15 485.86
195.70 489.11
196.25 492.35
196.80 495.56
197.35 498.75
197.90 501.93
198.45 505.08
199.00 508.21
199.55 511.33
200.10 514.42
200.65 517.50
201.20 520.55
201.75 523.59
202.30 526.62
202.85 529.62
203.40 532.61
203.95 535.58
204.50 538.54
205.05 541.48
205.60 544.40

Sub-Bas
Pond l
{
$ut?ca? Reach on LIC1?C
1
Site C Storage Pond Type 1124-hr 10-yr, 24-hr Rainfall=5.04"
' Prepared by Earth Tech Page 2
HydroCAD® 8.00 s/n 003562 © 2006 HydroCAD Software Solutions LLC 12/22/2008
Pond 1 P: Pondl
'
[93] Warning: Storage range exceeded by 2.01'
[88] Warning: Qout>Qin may require Finer Routing>1
[85] Warning: Oscillations may require Finer Rout1ng>1
Inflow Area = 321.000 ac, Inflow Depth = 2.31" for 10-yr, 24-hr event
' Inflow 460.90 cfs @ 12.48 hrs, Volume= 61.842 of
Outflow 529.73 cfs @ 12.50 hrs, Volume= 61.357 af, Atten= 0%, Lag= 1.4 min
Discarded 0.55 cfs @ 12.50 hrs, Volume 0.444 of
Primary = 211.59 cfs @ 12.50 hrs, Volume= 48.890 of
' Secondary = 317.59 cfs @ 12.50 hrs, Volume= 12.023 of
Routing by Stor-Ind method, Time Span= 4.00-30.00 hrs, dt= 0.05 hrs
Peak Elev= 162.01' @ 12.50 hrs Surf.Area= 0 sf Storage= 155,054 cf
' Plug-Flow detention time= 14.1 min calculated for 61.357 of (99% of inflow)
Center-of-Mass det. time= 9.3 min ( 884.0 - 874.7 )
' Volume Invert Avail.Storage Storage Description
#1 154.00' 155,054 cf Custom Stage Data Listed below
Elevation Cum.Store
(feet) (cubic-feet)
154.00 0
155.00 5,000
' 156.00 24,300
157.00 52,839
158.00 80,031
' 159.00 109,112
160.00 155,054
Device Routing Invert Outlet Devices
' #1 Primary 153.00' 30.0" x 85.0' long Culvert X 3.00 Ke= 0.400
Outlet Invert= 152.50' S= 0.00597 Cc= 0.900
n=0.012 Concrete pipe, finished
#2 Device 1 156.00' 35.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s)
4.0' Crest Height
#3 Secondary 158.00' 15.0' long x 10.0' breadth Broad-Crested Rectangular Weir
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
' Coef. (English) 2.49 2.56 2.70 2.69 2.68 2.69 2.67 2.64
#4 Discarded 154.00' 0.8" Vert. Orifice/Grate X 3.00 columns
X 4 rows with 4.0" cc spacing C= 0.600
1
Site C Storage Pond Type 1124-hr 10-yr, 24-hr Rainfall=5.04"
¦ Prepared by Earth Tech Page 3
HydroCAD® 8.00 s/n 003562 © 2006 HydroCAD Software Solutions LLC 12/22/2008
iscarded OutFlow Max=0.55 cfs @ 12.50 hrs HW=161.98' (Free Discharge)
=Orifice/Grate (Orifice Controls 0.55 cfs @ 13.14 fps)
Primary OutFlow Max=211.25 cfs @ 12.50 hrs HW=161.98' (Free Discharge)
¦ LtCulvert (Inlet Controls 211.25 cfs @ 14.35 fps)
2=Sharp-Crested Rectangular Weir (Passes 211.25 cfs of 1,913.26 cfs potential flow)
¦ Secondary OutFlow Max=315.05 cfs @ 12.50 hrs HW=161.99' (Free Discharge)
3=Broad-Crested Rectangular Weir (Weir Controls 315.05 cfs @ 5.27 fps)
¦ Pond 1 P: Pond1
Hydrograph
¦ '' 529 73 - I Inflow Area=321.000 ac
you ?:. v ors' `
.x Peak Elev=162.01'
¦ 500 Storage=155,054 cf
400 317.59 cfs
1
3 300 211 9 cfs :
O
¦ 200
100
' 0
4 6 8 10 12 14 16 18 20 22 24 26 28 30
¦ Time (hours)

¦ inflow
Outflow
¦ Discarded
¦ Primary
¦ Secondary

1
Site C Storage Pond Type 1124-hr 10 yr, 24-hr Rainfall=5.04"
¦ Prepared by Earth Tech Page 4
HydmCAD® 8.00 s/n 003562 C 2006 HydroCAD Software Solutions LLC 12/22/2008
Pond 1P: Pond1
' Stage-Discharge
1
¦ 1
1

as
? 1
¦ 0 1
:r

1
w 1
¦ 1
1

1

11

Discharge (cfs)
Total
® Discarded
¦ Primary
® Secondary1

U

n

G
L

L

C
0
11
r

Site C Storage Pond Type 1124-hr 10-yr, 24-hr Rainfall=5.04"
Prepared by Earth Tech Page 5
HydroCAD® 8.00 sln 003562 © 2006 HydroCAD Software Solutions LLC 12/22/2008
Hydrograph for Pond 1P: Pond1
Time Inflow Storage Elevation Outflow Discarded Primary Secondary
(hours) (cfs) (cubic-feet) (feet) (cfs) (cfs) (cfs) (cfs)
4.00 0.00 0 154.00 0.00 0.00 0.00 0.00
4.50 0.00 0 154.00 0.00 0.00 0.00 0.00
5.00 0.00 0 154.00 0.00 0.00 0.00 0.00
5.50 0.00 0 154.00 0.00 0.00 0.00 0.00
6.00 0.00 0 154.00 0.00 0.00 0.00 0.00
6.50 0.00 0 154.00 0.00 0.00 0.00 0.00
7.00 0.00 0 154.00 0.00 0.00 0.00 0.00
7.50 0.00 0 154.00 0.00 0.00 0.00 0.00
8.00 0.00 0 154.00 0.00 0.00 0.00 0.00
8.50 0.00 0 154.00 0.00 0.00 0.00 0.00
9.00 0.00 0 154.00 0.00 0.00 0.00 0.00
9.50 0.16 58 154.01 0.00 0.00 0.00 0.00
10.00 1.51 1,332 154.27 0.02 0.02 0.00 0.00
10.50 4.32 6,202 155.06 0.13 0.13 0.00 0.00
11.00 9.45 17,820 155.66 0.21 0.21 0.00 0.00
11.50 19.72 32,051 156.27 16.61 0.26 16.35 0.00
12.00 102.40 45,991 156.76 77.56 0.30 77.26 0.00
12.50 459.53 155,054 162.01 529.68 0.55 211.58 317.55
13.00 219.63 138,000 159.63 258.99 0.45 176.19 82.34
13.50 107.94 74,547 157.80 137.75 0.36 137.39 0.00
14.00 69.22 44,950 156.72 72.05 0.30 71.75 0.00
14.50 51.10 41,099 156.59 52.76 0.29 52.47 0.00
15.00 42.91 39,109 156.52 43.62 0.28 43.33 0.00
15.50 38.21 37,983 156.48 38.78 0.28 38.50 0.00
16.00 34.09 36,998 156.44 34.67 0.28 34.39 0.00
16.50 30.22 36,013 156.41 30.71 0.27 30.43 0.00
17.00 27.70 35,306 156.39 27.99 0.27 27.72 0.00
17.50 26.03 34,841 156.37 26.26 0.27 25.99 0.00
18.00 24.54 34,439 156.36 24.77 0.27 24.50 0.00
18.50 23.10 34,045 156.34 23.31 0.27 23.04 0.00
19.00 21.62 33,622 156.33 21.86 0.27 21.59 0.00
19.50 20.12 33,183 156.31 20.37 0.27 20.10 0.00
20.00 18.61 32,740 156.30 18.86 0.27 18.60 0.00
20.50 17.19 32,307 156.28 17.39 0.27 17.13 0.00
21.00 16.39 32,010 156.27 16.49 0.26 16.22 0.00
21.50 15.98 31,867 156.27 16.05 0.26 15.79 0.00
22.00 15.68 31,764 156.26 15.74 0.26 15.47 0.00
22.50 15.40 31,669 156.26 15.45 0.26 15.19 0.00
23.00 15.12 31,575 156.25 15.17 0.26 14.90 0.00
23.50 14.82 31,481 156.25 14.88 0.26 14.62 0.00
24.00 14.53 31,386 156.25 14.59 0.26 14.33 0.00
24.50 10.56 30,526 156.22 12.00 0.26 11.74 0.00
25.00 2.57 27,231 156.10 4.05 0.25 3.79 0.00
25.50 0.53 25,395 156.04 1.12 0.25 0.88 0.00
26.00 0.10 24,532 156.01 0.43 0.24 0.19 0.00
26.50 0.01 24,096 155.99 0.24 0.24 0.00 0.00
27.00 0.00 23,665 155.97 0.24 0.24 0.00 0.00
27.50 0.00 23,236 155.94 0.24 0.24 0.00 0.00
28.00 0.00 22,810 155.92 0.24 0.24 0.00 0.00
28.50 0.00 22,388 155.90 0.23 0.23 0.00 0.00
29.00 0.00 21,969 155.88 0.23 0.23 0.00 0.00
29.50 0.00 21,554 155.86 0.23 0.23 0.00 0.00
30.00 0.00 21,142 155.84 0.23 0.23 0.00 0.00

1
Site C Storage Pond Type 1124-hr 10-yr, 24-hr Rainfall=5.04"
' Prepared by Earth Tech Page 6
HydroCAD® 8.00 s/n 003562 © 2006 HydroCAD Software Solutions LLC 1212212008

1

r

0

1

Stage-Discharge for Pond 1 P: Pond1
Elevation Discharge Discarded Primary Secondary
(feet) (cfs) (cfs) (cfs) (cfs)
154.00 0.00 0.00 0.00 0.00
154.20 0.02 0.02 0.00 0.00
154.40 0.04 0.04 0.00 0.00
154.60 0.06 0.06 0.00 0.00
154.80 0.09 0.09 0.00 0.00
155.00 0.12 0.12 0.00 0.00
155.20 0.16 0.16 0.00 0.00
155.40 0.18 0.18 0.00 0.00
155.60 0.20 0.20 0.00 0.00
155.80
9 m on 0.22
094 0.22
n 24 0.00
n
nn 0.00
n nn
156.20 10.55 0.26 .
10.29 0.00
156.40 29.52 0.27 29.24 0.00
156.60 54.27 0.29 53.98 0.00
156.80 83.82 0.30 83.51 0.00
157.00 116.47 0.32 116.15 0.00
157.20 122.15 0.33 121.82 0.00
157.40 127.58 0.34 127.24 0.00
157.60 132.78 0.35 132.43 0.00
157.80 137.80 0.36 137.43 0.00
158.00 142.63 0.37 142.25 0.00
158.20 150.65 0.39 146.92 3.34
158.40 161.55 0.40 151.44 9.71
158.60 175.06 0.41 155.83 18.82
158.80 189.39 0.42 160.10 28.87
159.00 204.89 0.43 164.26 40.20
159.20 221.80 0.44 168.32 53.04
159.40 239.07 0.44 172.28 66.34
159.60 256.32 0.45 175.72 80.14
159.80 275.07 0.46 178.98 95.63
160.00 294.65 0.47 182.17 112.01
160.20 315.01 0.48 185.31 129.22
160.40 336.13 0.49 188.40 147.24
160.60 357.96 0.50 191.44 166.02
160.80 380.48 0.50 194.43 185.54
161.00 403.66 0.51 197.38 205.77
161.20 427.49 0.52 200.28 226.68
161.40 451.94 0.53 203.14 248.26
161.60 476.99 0.54 205.96 270.49
161.80 502.63 0.54 208.75 293.34
162.00 528.85 0.55 211.49 316.80
Now k pool A,,Jc #)4& 6 E
Bash ow rA;Pu -

z
Sub-Bas
Pond 1
S ? Reach on Llnk
Site E Storage Pond Type 1124-hr 2-yr, 24-hr Rainfall=3.46"
' Prepared by Earth Tech Page 2
HydroCAD® 8.00 s/n 003562 © 2006 HvdroCAD Software Solutions LLC 12/22/2008
Pond 1P: Pond1
[93] Warning: Storage range exceeded by 0.41' A -
1881 Warning: Qout>Qin may require Finer Routing>1
6XISTOV6 PffvD exa rL.Cct-
S nbT A-trF(Z'FD - #tiIoDEL
N Or c t1Tr-_S 'rh47- iT avEQ- S
Inflow Area = 139.000 ac, Inflow Depth = 1.15" for 2-yr, 24-hr event
Inflow = 93.91 cfs @ 12.50 hrs, Volume= 13.354 of
Outflow - 105.05 cfs @ 12.55 hrs, Volume= 11.892 af, Atten= 0%, Lag= 3.5 min
Discarded = 0.41 cfs @ 12.55 hrs, Volume= 0.865 of
Primary = 104.64 cfs @ 12.55 hrs, Volume= 11.027 of
Routing by Stor-Ind method, Time Span= 0.10-120.00 hrs, dt= 0.05 hrs
Peak Elev= 210.41' @ 12.55 hrs Surf.Area= 0 sf Storage= 105,000 cf
Plug-Flow detention time= 173.8 min calculated for 11.887 of (89% of inflow)
Center-of-Mass det. time= 121.0 min ( 1,016.4 - 895.4)
Volume Invert Avail.Storage Storage Description
#1 195.00' 105,000 cf Custom Stage Data Listed below
Elevation CUm.Store
(feet) (cubic-feet)
195.00 0
196.00 3,000
197.00 4,500
198.00 5,800
199.00 7,500
200.00 10,000
201.00 14,500
202.00 18,500
203.00 24,500
204.00 37,000
205.00 54,000
206.00 65,000
207.00 74,000
208.00 84,000
209.00 89,000
210.00 105,000
Device Routing Invert Outlet Devices
#1 Primary 208.50' 15.0' long x 10.0' breadth Broad-Crested Rectangular Weir
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
Coef. (English) 2.49 2.56 2.70 2.69 2.68 2.69 2.67 2.64
#2 Discarded 205.80' 1.0" Vert. Orifice/Grate X 2.00 columns
X 4 rows with 6.0" cc spacing C= 0.600
Qiscarded OutFlow Max=0.41 cfs @ 12.55 hrs HW=210.38' (Free Discharge)
2=Orifice/Grate (Orifice Controls 0.41 cfs @ 9.35 fps)
Primary OutFlow Max=102.44 cfs @ 12.55 hrs HW=210.38' (Free Discharge)
L1=Broad-Crested Rectangular Weir (Weir Controls 102.44 cfs @ 3.62 fps)

1
1
1
1
Site E Storage Pond Type 1124-hr 2 yr, 24-hr Rainfall=3.46"
Prepared by Earth Tech Page 3
HydroCAD® 8.00 s/n 003562 © 2006 HydroCAD Software Solutions LLC 12/2212008
Pond 1P: Pond1
Hydrograph
® Inflow
1.1051,05 1: S ' Outflow
- - - - - - - - - - - - -1nftowArea--139:000-ac-
10464 CS Peak EIev=21041' ¦ Discarded
100 Storage=105,000 d Primary
80 - -------------------- :-------------------
----------------------------------------------
3 60
0
40 -------
204 n''?i
10 20 30 40 50 60 70 80 90 100110120
Time (hours)
Pond 1 P: Pond1
Stage-Discharge
m
w_
C
O
w
t4
N
W
Total
¦ Discarded
¦ Primary
0 20 40 60 80 100
Discharge (cfs)

Site E Storage Pond Type 1124-hr 2-yr, 24-hr Rainfall=3.46"
Prepared by Earth Tech Page 4
HydroCADO 8.00 sin 003562 O 2006 HydroCAD Software Solutions LLC 12/2212008
M Hydrograph for Pond 1 P: Pond1
Time Inflow Storage Elevation Outflow Discarded Primary
(hours) (cfs) (cubic-feet) (feet) (cfs) (cfs) (cfs)
0.10 0.00 0 195.00 0.00 0.00 0.00
2.60 0.00 0 195.00 0.00 0.00 0.00
5.10 0.00 0 195.00 0.00 0.00 0.00
7.60 0.00 0 195.00 0.00 0.00 0.00
10.10 0.00 0 195.00 0.00 0.00 0.00
12.60 89.74 105,000 210.05 77.36 0.39 76.97
15.10 10.16 88,504 208.90 10.25 0.32 9.93
17.60 6.36 87,975 208.79 6.40 0.31 6.09
20.10 4.57 87,645 208.73 4.61 0.30 4.31
22.60 3.86 87,507 208.70 3.86 0.30 3.56
25.10 0.48 86,633 208.53 0.67 0.29 0.38
27.60 0.00 84,537 208.11 0.25 0.25 0.00
30.10 0.00 82,386 207.84 0.23 0.23 0.00
32.60 0.00 80,432 207.64 0.21 0.21 0.00
35.10 0.00 78,682 207.47 0.18 0.18 0.00
37.60 0.00 77,168 207.32 0.15 0.15 0.00
40.10 0.00 75,855 207.19 0.14 0.14 0.00
42.60 0.00 74,653 207.07 0.13 0.13 0.00
45.10 0.00 73,568 206.95 0.11 0.11 0.00
47.60 0.00 72,638 206.85 0.10 0.10 0.00
50.10 0.00 71,823 206.76 0.09 0.09 0.00
52.60 0.00 71,086 206.68 0.08 0.08 0.00
55.10 0.00 70,409 206.60 0.07 0.07 0.00
57.60 0.00 69,785 206.53 0.07 0.07 0.00
60.10 0.00 69,220 206.47 0.06 0.06 0.00
62.60 0.00 68,714 206.41 0.05 0.05 0.00
65.10 0.00 68,261 206.36 0.05 0.05 0.00
67.60 0.00 67,860 206.32 0.04 0.04 0.00
70.10 0.00 67,505 206.28 0.04 0.04 0.00
72.60 0.00 67,191 206.24 0.03 0.03 0.00
75.10 0.00 66,899 206.21 0.03 0.03 0.00
77.60 0.00 66,619 206.18 0.03 0.03 0.00
80.10 0.00 66,352 206.15 0.03 0.03 0.00
82.60 0.00 66,097 206.12 0.03 0.03 0.00
85.10 0.00 65,853 206.09 0.03 0.03 0.00
87.60 0.00 65,623 206.07 0.02 0.02 0.00
90.10 0.00 65,405 206.04 0.02 0.02 0.00
92.60 0.00 65,199 206.02 0.02 0.02 0.00
95.10 0.00 65,005 206.00 0.02 0.02 0.00
97.60 0.00 64,822 205.98 0.02 0.02 0.00
100.10 0.00 64,650 205.97 0.02 0.02 0.00
102.60 0.00 64,487 205.95 0.02 0.02 0.00
105.10 0.00 64,336 205.94 0.02 0.02 0.00
107.60 0.00 64,197 205.93 0.01 0.01 0.00
110.10 0.00 64,072 205.92 0.01 0.01 0.00
112.60 0.00 63,957 205.91 0.01 0.01 0.00
115.10 0.00 63,853 205.90 0.01 0.01 0.00
117.60 0.00 63,758 205.89 0.01 0.01 0.00

1

D

F

Site E Storage Pond Type II 24-hr 2-yr, 24-hr Rainfall=3.46"
Prepared by Earth Tech Page 5
HydroCADO 8.00 s/n 003562 © 2006 HydroCAD Software Solutions LLC 12/22/2008
Stage-Discharge for Pond 1 P: Pond1
Elevation Discharge Discarded Primary
(feet) (cfs) (cfs) (cfs)
195.00 0.00 0.00 0.00
195.20 0.00 0.00 0.00
195.40 0.00 0.00 0.00
195.60 0.00 0.00 0.00
195.80 0.00 0.00 0.00
196.00 0.00 0.00 0.00
196.20 0.00 0.00 0.00
196.40 0.00 0.00 0.00
196.60 0.00 0.00 0.00
196.80 0.00 0.00 0.00
197.00 0.00 0.00 0.00
197.20 0.00 0.00 0.00
197.40 0.00 0.00 0.00
197.60 0.00 0.00 0.00
197.80 0.00 0.00 0.00
198.00 0.00 0.00 0.00
198.20 0.00 0.00 0.00
198.40 0.00 0.00 0.00
198.60 0.00 0.00 0.00
198.80 0.00 0.00 0.00
199.00 0.00 0.00 0.00
199.20 0.00 0.00 0.00
199.40 0.00 0.00 0.00
199.60 0.00 0.00 0.00
199.80 0.00 0.00 0.00
200.00 0.00 0.00 0.00
200.20 0.00 0.00 0.00
200.40 0.00 0.00 0.00
200.60 0.00 0.00 0.00
200.80 0.00 0.00 0.00
201.00 0.00 0.00 0.00
201.20 0.00 0.00 0.00
201.40 0.00 0.00 0.00
201.60 0.00 0.00 0.00
201.80 0.00 0.00 0.00
202.00 0.00 0.00 0.00
202.20 0.00 0.00 0.00
202.40 0.00 0.00 0.00
202.60 0.00 0.00 0.00
202.80 0.00 0.00 0.00
203.00 0.00 0.00 0.00
203.20 0.00 0.00 0.00
203.40 0.00 0.00 0.00
203.60 0.00 0.00 0.00
203.80 0.00 0.00 0.00
204.00 0.00 0.00 0.00
204.20 0.00 0.00 0.00
204.40 0.00 0.00 0.00
204.60 0.00 0.00 0.00
204.80 0.00 0.00 0.00
205.00 0.00 0.00 0.00
205.20 0.00 0.00 0.00
205.40 0.00 0.00 0.00
Elevation Discharge Discarded Primary
(feet) cfs) (cfs) (cfs)
205.60 0.00 0.00 0.00
205.80 0.00 0.00 0.00
206.00 0.02 0.02 0.00
206.20 0.03 0.03 0.00
206.40 0.05 0.05 0.00
206.60 0.07 0.07 0.00
206.80 0.09 0.09 0.00
207.00 0.12 0.12 0.00
207.20 0.14 0.14 0.00
207.40 0.17 0.17 0.00

207.60
0.20
0.20
0.00
X
207.80 0.22 0.22 0.00

208.00
0.24
0.24 SE _
0.00
PrvQ?s? D
R1SCQ WILL
Pon,o CL-CVAInOfJ
208.20 0.26 0.26 0.00 TV t?ES S -TAAN
208.40 0.28 0.28 0.00 G= xx%TiN 6 -. Zoq.o,
208.60 1.48 0.29 1.18
208.80 6.53 0.31 6.22
209.00 14.27 0.32 13.95
209.20 24.01 0.34 23.68
209.40 34.74 0.35 34.39
209.60 46.83 0.36 46.46
209.80 59.96 0.37 59.59
210.00 73.55 0.39 73.16
210.20 88.17 0.40 87.77
210.40 104.12 0.41 103.71

' EARTH TECH AECOM
JOB TITLE Co R P
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{
f
JOB NO. M-20t-1 ! CALCULATION NO.
' SHEET - OF
ORIGINATOR -5 D f G1? DATE O
REVIEWER DATE
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1 Appendix C
1 Inspection Checklist

C
u

AECQM Environment
April 2009
AECOtJI Ei
INSPECTION CHECKLIST
Location:
Date: Time:
Site Conditions:
Inspector:
>-. ...y i1 F ?, rY ?! l ?, . r i '. '?'• • J," R Y'` S` 5.'
ELL
Trash/Debris present?
i '.` Sr i. S. , ..?:r:ai4 •??. .?..
Sediment accumulated?
Excessive algae?
Weeds present?
11
Condition of vegetation?
Sediment accumulated?
Weeds present?

~ ?". ?,..
v?'4 .? LLryy
r '. ?, 'fin' .,yi ur r.?l?y R,lk ?r.f -• i .?

Clear of debris and functional?
Sediment accumulation?
Condition of piping? Obstructions?
Condition of valves?
Erosion on swales?
Bare soil or areas of erosion?
Condition of vegetation?

Comments:
Photo log:
1
1
1
C

t
1
1
1
1
oc? - Doss

Natural Resources Survey Report
Surface Water Remediation at the Neuse River
Wastewater Treatment Plant
AECOM North Carolina, Inc.
April 2009
Document No.: 10724-006-CW-NRS1
AECOM
1
1
1
Prepared for:
City of Raleigh Public Utilities Department
Raleigh, North Carolina
Natural Resources Survey Report
Surface Water Remediation at the Neuse River
Wastewater Treatment Plant
._ !1/ amh
Pre red
Jennifer Cassada
Reviewed By
Peter M. Thibodeau, Ph.D., P.G., P.H.
AECOM North Carolina, Inc.
April 2009
Document No.: 10724-006-CW-NRS1
AECOM

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
AECOM Environment
Contents
1.0 Introduction .............................................................................................................................................1-1
1.1 Purpose of report .............................................................................................................................1-1
1.2 Regulations and definitions ..............................................................................................................1-1
1.2.1 Wetlands .............................................................................................................................1-1
1.2.2 Waterbodies .......................................................................................................................1-2
2.0 Survey methods ..................................................................................................................................... 2-1
2.1 Desktop analysis ..............................................................................................................................2-1
2.2 Field survey ......................................................................................................................................2-1
2.2.1 Wetlands .............................................................................................................................2-1
2.2.2 Waterbodies ....................................................................................................................... 2-2
2.2.3 Threatened and endangered species ............................................................................... 2-3
3.0 Results -------------------------------------------------------------------------------14-1
3.1 Wetlands ........................................................................................... ............................................... 3-1
3.2 Waterbodies ...................................................................................... ............................................... 3-1
3.3 General habitats ................................................................................ ............................................... 3-2
3.4 Threatened and endangered species ............................................... .............................................. 3-3
4.0 References ..............................................................................................................................................4-1
List of Appendices
Appendix A Field Datasheets
Appendix B Photographs
April 2009
AECOM Environment
List of Tables
Table 1 Threatened and Endangered Species Listed in the Vicinity of NRWWTP
Table 2 Wetlands
Table 3 Waterbodies
List of Figures
Figure 1 Site Location
Figure 2 Survey Areas
Figure 3 Area A Delineation
Figure 4 Area B Delineation
Figure 5 Area C Delineation
Figure 6 Area D Delineation
Figure 7 Area E Delineation
April 2009

' AECOM Environment
1.0 Introduction
1
1.1 Purpose of report
Environmental field surveys were conducted August 5 and 6, and November 20, 2008 to identify and assess
natural resources within the vicinity of the proposed surface water remediation at the City of Raleigh Public
Utilities Department (CORPUD) Neuse River Wastewater Treatment Plant (NRWWTP; Figure 1). In addition,
a field consultation with North Carolina Division of Water Quality (DWQ) staff was conducted in March 2009 to
establish concurrence on the classification of some of the stream segments. CORPUD is considering the use
of constructed wetlands at candidate sites at the NRWWTP site (the Site; Figure 2) in an effort to reduce
' nitrate concentrations in the project areas.
Specific tasks undertaken during environmental field surveys related to natural resources (i.e., wetlands,
' waterbodies, and threatened and endangered species) in the vicinity of the project included:
1. Survey for potential wetlands and classify wetland types encountered;
2. Survey for waterbodies to identify and characterize existing resources;
3. Habitat characterization to address the potential for federal and state listed species to occur in the
vicinity of the project; and
4. Identification of other sensitive features, including unique natural features (e.g. springs, bluffs,
etc.) and wildlife within and adjacent to the project.
This Natural Resources Survey Report was prepared for the benefit of federal, state, and local agencies for
review and includes the regulations and definitions under which the field surveys were conducted, survey
methodologies utilized, and results of field surveys conducted.
' 1.2 Regulations and definitions
Wetland and waterbody surveys were conducted in accordance with the 1987 United States Army Corps of
Engineers (USACE) Wetland Delineation Manual (Environmental Laboratory, 1987). During this field survey
effort, general habitat surveys were conducted to assess the potential for federal and state rare, threatened,
and endangered species to be found in the vicinity of the project. Regulations and definitions pertinent to the
' Project are summarized below.
1.2.1 Wetlands
' Wetland is the collective term for swamps, bogs, marshes, wet meadows, and similar areas that are often
located between open water and dry land. The USACE claims jurisdiction over all defined "Waters of the
United States". Certain activities in these waters are regulated by the USACE under the authorities granted by
33 Code of Federal Regulations (CFR), 40 CFR, Section 9 of the Rivers and Harbors Act of 1899, Section 10
of the Rivers and Harbors Act of 1899, Section 404 of the Clean Water Act (CWA), and Section 103 of the
Marine Protection Research and Sanctuaries Act of 1972 (USACE, 2006).
The USACE and the Environmental Protection Agency (EPA) define a wetland as "An area that is inundated or
saturated by surface or groundwater at a frequency and duration to support, and that under normal
circumstances does support, a prevalence of vegetation typically adapted for life in saturated soil conditions,
commonly known as hydrophytic vegetation." This definition takes into consideration three distinct
environmental parameters: hydrology, soil, and vegetation. Positive wetland indicators of all three parameters
are normally present in wetlands.
1-1 April 2009

AECOM Environment
1.2.2 Waterbodies
' Waterbodies are typically defined as any area that in a normal year has water flowing or standing above
ground to the extent that evidence of an ordinary high water mark (OHWM) is established. This includes
lakes, rivers, bays, tributaries, and anthropogenic features such as canals and ditches. The USACE defines
' the OHWM as "line on the shore coincident with the elevation contour that represents the approximate location
of the line on the shore established by fluctuations of water and indicated by physical characteristics such as
shelving, destruction of terrestrial vegetation, presence of litter or debris, or changes in the character of soil".
' The USACE jurisdictional term "Waters of the United States" includes navigable waters and all their tributaries
and other waters where degradation or destruction could affect interstate or foreign commerce. Under this
definition, any surface water connection that has a defined OHWM or is part of a continuum of wetlands,
' whether natural or man-made, is considered a tributary connection. Ditches and canals with weirs, culverts,
or other water control structures including pumping facilities are also considered to have tributary
connection, provided there is some conveyance of water from upstream to downstream. The USACE
claims jurisdiction on ditches or canals that fall under this definition at the top of waterbody bank.
Exclusions from this rule generally include upland cut ditches and ditches that do not connect to navigable
waters or wetlands.
fl

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2.0 Survey methods

AECOM Environment
The following sections describe background information utilized and methods implemented by AECOM
' ecologists while conducting field surveys. The Project area was evaluated to identify wetlands or waterbodies
and to determine the probable USACE jurisdictional status of these features.
' 2.1 Desktop analysis
Prior to conducting and in preparation for the field survey, AECOM ecologists conducted a desktop review of
the following material:
' 1. United States Geological Survey (USGS) 7.5-minute Topographic Quadrangle Maps.
2. U.S. Fish and Wildlife Service (USFWS) National Wetlands Inventory (NWI) Maps.
' 3. USFWS lists of threatened and endangered species.
4. North Carolina Natural Heritage Program lists of rare plant and animal species.
5. USDA Wake County Soil Survey (1970).
' These analyses assisted in the planning and execution of field surveys and determination of the potential
jurisdictional status of wetlands and waterbodies located in the study areas on the Site.
2.2 Field survey
' Surveys were conducted in five areas at the NRWWTP where the proposed constructed wetlands will be
located. Areas A, B, C, D, and E are depicted in Figure 2.
2.2.1 Wetlands
The protocol for the wetland surveys was obtained from the 1987 USACE Wetland Delineation Manual
' (Environmental Laboratory, 1987). These methods define characteristic hydrophytic vegetation, hydric soil,
and hydrologic indicators that are normally present in wetlands.
' USACE Methodology
According to the 1987 USACE Wetland Delineation Manual, areas must exhibit three distinct characteristics to
be considered wetlands:
' 1. The prevalent vegetation must consist of plants adapted to life in hydric soil conditions. These
species, due to morphological, physiological, and/or reproductive adaptations, can and do persist
' in anaerobic soil conditions;
2. Soils in wetlands must be classified as hydric or they must possess characteristics that are
associated with reducing soil conditions; and
3. The area must be inundated either permanently or periodically at mean water depths less than
6.6-feet (2-meters) or the soil saturated at the surface at some time during the growing season of
the prevalent vegetation.
' Vegetation, soils, and hydrology were assessed during field surveys in order to determine whether the three
criteria were satisfied within each potential wetland area.
2-1 Apd12009
AECOM Environment
In addition, the wetlands were further characterized based on primary vegetative stratum (Cowardin et al,
1979). The wetland classifications common in Wake County include the following:
• Palustrine Emergent Wetlands (PEM): Freshwater wetlands dominated by erect, herbaceous
vegetation (e.g., grasslands or stands of reedy growth) are classified as PEM wetlands. They
generally have less than 20% coverage by shrubs or trees;
• Palustrine Scrub-Shrub Wetlands (PSS): When freshwater wetlands are dominated by woody
vegetation less than 20 feet tall, they are classified as PSS wetlands. They generally have greater
than 60% coverage by shrubs and less than 20% coverage by trees; and
• Palustrine Forested Wetlands (PFO): When freshwater wetlands are dominated (i.e., greater than
50% coverage) by trees 20 feet or taller, they are classified as PFO wetlands. PFO wetlands often
consist of an overstory dominated by deciduous, broad-leaved tree species and an assortment of
herbaceous plants and vines in the subcanopy and ground cover.
2.2.2 Waterbodies
Waterbodies include linear water features (i.e., streams and ditches) as well as open water features. Open
waterbody features were classified as ponds, lakes, or borrow pits. Applicable data were gathered for each
waterbody feature including location, visual appearance of water quality, crossing width between the tops of
banks, and water width at the time of the field survey.
2.2.2.1 Waterbody quantitative assessment
The location and area of waterbodies within the Project area were determined during field surveys, in
accordance with generally accepted stream assessment protocols. At each waterbody, the waterbody top of
bank width was estimated to provide a general perpendicular measurement. At each waterbody location,
water depth, water width, substrate composition, bank height, bank slope, and water clarity were estimated.
Data were recorded electronically using GPS technology and manually on standardized field datasheets for
each waterbody identified during the field surveys (included in Appendix A of this report) field logbooks, and
aerial alignment sheet mapping. Photographs of each waterbody identified during the field surveys are
included in Appendix B of this report.
2.2.2.2 Waterbody qualitative assessment
A general waterbody quality assessment was designated for each waterbody identified within the Survey
Corridor. Each waterbody was grouped into one of the following three classification groups, based on
generally accepted stream assessment protocols:
1. High Quality: Natural channel (no structures or dikes; no evidence of down-cutting or excessive
' lateral cutting); evidence of past channel alteration with significant recovery; any dikes/levees are
set back to provide access to adequate flood plain; natural vegetation extends at least one or two
active channel widths on each side; banks stable and protected by roots that extend to the base-
flow elevation; water clear to tea-colored; no barriers to fish movement (e.g., no seasonal water
withdrawals that prevent movement); many fish cover types available; diverse and stable aquatic
habitat; no disturbance by livestock or man; intolerant macroinvertebrates present;
' 2. Moderate Quality: Altered channel evidenced by rip rap and/or channelization; dikes/levees
restrict flood plain width; natural vegetation extends 1/3-1/2 of the active channel width on each
side; filtering function of riparian vegetation only moderately compromised; banks moderately
' unstable (outside bends actively eroding with few fallen trees); considerable water cloudiness,
submerged objects covered with green film; moderate odor; minor barriers to fish movement; fair
aquatic habitat; minimum disturbance by livestock or man; facultative macroinvertebrates present;
and
2-2 April 2009

' AECOM Environment
3. Low Quality: Channel is actively down-cutting or widening; rip rap and channelization excessive;
' flood plain restricted by dikes/levees; natural vegetation less than 1/3 of the active channel width
on each side; lack of regeneration; filtering function severely compromised; banks unstable (inside
and outside bends actively eroding with numerous fallen trees); water very turbid to muddy;
obvious pollutants (algal mats, surface scum, surface sheen); heavy odor; green color to water;
' severe barriers to fish movement; little to no aquatic habitat; severe disturbance by livestock or
man; tolerant or no macroinvertebrates present.
' Stream types were further classified based on the frequency and duration of water within the stream banks as
defined in the National Hydrographic Dataset (USGS, 2000). The following three stream type classifications
were utilized:
1. Perennial: Contains water throughout the year, except for infrequent periods of severe drought;
2. Intermittent or Relatively Permanent Waterway (RPW): Contains water for only part of the
' year, but more than just after rainstorms and at snowmelt; and
3. Ephemeral or Non-RPW: Normally are natural watercourses, including natural watercourses that
have been modified by channelization or manmade drainage ditches, that without the influent of
point source discharges flow only in direct response to precipitation or irrigation return-water
discharge in the immediate vicinity and whose channels are normally above the groundwater
table. These streams may contain a transient population of aquatic life during the portion of the
year when there is suitable habitat for fish survival. Normally, aquatic habitat in these streams is
' not adequate to support a reproductive cycle for fish and other aquatic life.
In addition to the above terminology, this report also includes terminology based on the USACE's new
' Jurisdictional Determination (JD) forms and associated instructional guidebook, as follows: Traditional
Navigable Waterway (TNW), Relatively Permanent Waterway (RPW) for intermittent streams; and Non-
Relatively Permanent Waterway (Non-RPW) for ephemeral streams.
' 2.2.3 Threatened and endangered species
Prior to the field effort, AECOM conducted a search of the North Carolina Natural Heritage Program database
' to compile a list of state and federally listed species (threatened/endangered species, candidate species and
critical habitat) potentially occurring within the project area (Table 1). The database lists species potentially
occurring within a specific U.S. Geological Survey (USGS) topographic quadrangle.
' Field surveys consisted of pedestrian surveys conducted throughout the survey area. In the event that
individuals, populations, or suitable habitat for listed species were identified, location data and habitat
description information were documented using GPS technology and recorded on data forms.
' 2.2.3.1 Federally listed threatened and endangered species, candidate species, and critical habitat
Federally listed threatened and endangered species and critical habitat are protected by the Endangered
' Species Act (ESA) of 1973 and subsequent amendments. The ESA is administered by two federal agencies,
the USFWS and NOAA Fisheries. NOAA Fisheries oversees marine species, and the USFWS has
responsibility over freshwater fish and all other species.
' 2.2.3.2 State listed imperiled species and species of concern
The Wildlife Resources Commission has regulatory responsibility for listing and protecting North Carolina's
' endangered and threatened animals under North Carolina's Endangered Species Act (NC Statute Section
113-331 - 350). The Act prohibits the taking, transportation, sale, etc. of endangered and threatened species,
except as permitted, and provides for official listing and recovery of these species.
2-3 April 2009

AECOM Environment
A list of protected species (Table 1), including many Federal Species of Concern (FS) and State Special
Concern Species (SS), was obtained from the North Carolina Natural Heritage Program, accessed through the
' website (http://www.ncnhp.org/). Note that (FS) does not carry any procedural or substantive protections under
the ESA.
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AECOM Environment
3.0 Results
1
The following sections summarize the results of the field surveys conducted by AECOM ecologists in each of
' the areas affected by the project. Results include information regarding wetlands and waterbodies identified
within the areas surveyed. Two wetlands, one agricultural ditch, one pond, and nine streams were identified
during the field surveys. Figures 3 through 7 depict the locations of these identified features.
3.1 Wetlands
A total of 4.4 acres of wetlands were identified during the field surveys, both were within or near Area C
(Figure 5). A summary of the identified wetlands is provided in Table 2. Wetland field datasheets are included
in Appendix A and photographs are provided in Appendix B.
W1AWA001 - WlAWA001 is a large (3.4 acres), high quality, PEM/PFO wetland. It is located in the southern
portion of Area C and is associated with S1AWA009. Dominant vegetation within the wetland includes black
willow (Salix nigra), jewelweed (Impatiens capensis), rice cut grass (Leerzia orizoides), and stilt grass
(Microstegium vimineum).
W1AWA002 - WlAWA002 is a small, moderate quality, PFO wetland associated with SlAWA009 and
SlAWA011. It is across the dirt road to the west of Area C. The dominant vegetation within the wetland
includes sycamore (Plantanus occidentalis), red maple (Acerrubrum), and stilt grass (Microstegium
vimineum).
3.2 Waterbodies
Table 3 is a summary of the waterbodies identified during the field surveys and confirmed by DWQ. Figures 3
through 7 show the location of each identified waterbody and photographs are provided in Appendix B.
One pond, four perennial streams, three intermittent streams, and two ephemeral streams were identified
during the field surveys. Field datasheets for identified waterbodies are included in Appendix A.
S1AWA001 - SlAWA001 is a low quality stream that has been modified into an agricultural ditch with a sand
substrate. It has a clear OHWM and the water depth at the time of the survey was less than three inches. The
top of bank width at a representative location is approximately ten feet, and the bank height is two to four feet.
Based on a field visit in March 2009, DWQ classified stream segment SWAlAO01A as an ephemeral stream,
and stream segment SWAlAO01 B as an intermittent stream.
S1AWA002 - SlAWA002 is a high quality perennial stream in a forested area with a sand substrate. The
water depth at the time of the survey was less than three inches, and the top of bank width at a representative
location is approximately 35 feet. The channel is meandering with high, steep banks (bank height 6-8 feet,
bank slope of 60-80° in some locations).
S1AWA0003 - SlAWA003 is a high quality perennial stream with a top of bank width of approximately six
feet at a representative location. There was very little water in the stream at the time of the survey. It has a
gravel and sand substrate.
S1AWA004 - SlAWA004 is a high quality ephemeral tributary to S1AWA003. It is an erosional feature with
' abundant leaf litter and fine roots in the channel. It has a top of bank width of approximately six feet at a
representative location. There was no water in the stream at the time of the survey and the bank height was
two to four feet.
3-1 April zoos

AECOM Environment
S1AWA005 - SlAWA005 is a moderate quality stream with a sand substrate. It is also a tributary of
S1AWA004. There was no water in the stream at the time of the survey, and the top of bank width at a
representative location was ten feet.
SlAWA006 - SlAWA006 is a man-made pond. The width of the pond within the survey area is
' approximately 220 feet. It has an estimated depth of greater than five feet and a clay substrate. The water is
very turbid with a greenish color. Aquatic organisms observed included fish, frogs, and turtles.
S1AWA007 - SlAWA007 begins as the overflow from the pond (S1AWA006) and continues through a
forested area to the southeast. It is a small moderate quality perennial stream. Its substrate consists of
gravel, cobble, and sand. The top of bank width at a representative location is approximately eight feet, and
the water depth at the time of the survey was three to six inches. Aquatic organisms observed included fish,
' frogs, salamanders, and crayfish.
S1AWA008 - S1AWA008 is a small moderate quality intermittent stream that forms at the overflow pipe of the
' pond (S1AWA006) and flows into S1AWA007. Its substrate is sand and gravel. The top of bank width at a
representative location is approximately six feet and the water depth at the time of the survey was three to six
inches. Aquatic organisms observed included fish and frogs.
' S1AWA009 - SlAWA009 is a high quality intermittent stream with a braided channel that flows through
WlAWA001 on the east side of the dirt road, and WlAWA002 on the west side of the road. The top of bank at
a representative location is approximately three feet on the east side and six feet on the west side. The water
depth at the time of the survey was less than three inches on the east side and three to six inches on the west
side.
S1AWA010 - SlAWA010 is a moderate quality ephemeral channel with old beaver dams in it. It appears to
hold water infrequently and there is a four foot drop to the water surface at its confluence with the Neuse River.
The top of bank width at a representative location is approximately eight feet, and there was no water in the
' stream at the time of the survey.
S1AWA011 S1AWA011 is a tributary to SlAWA009 that also flows through W1AWA002. It is a moderate
quality perennial stream with low banks (less than two feet). The top of bank width at a representative location
' is approximately six feet and the water depth at the time of the survey was three to six inches.
3.3 General habitats
Vegetative habitats are classified by the presence of the dominant vegetation species. Defining habitats is
necessary in order to assess the potential presence of wildlife, threatened and endangered species and
communities, and other ecologically sensitive areas. The NRWWTP is located within the Piedmont
physiographic province in North Carolina. Three main habitat types were observed during the field survey:
mixed hardwood forest, floodplain forest, and cultivated field.
' Mixed hardwood forest is relatively mature, hardwood-dominated, second-growth forest with a defined canopy,
mid-story and herbaceous understory. Dominant trees included American beech (Fagus grandifolia), hickory
(Carya spp.), tulip poplar (Liriodendron tulipifera), and oaks (Quercus spp.). Smilax (Smilax spp.), poison ivy
(Toxicodendron radicans), and Christmas fern (Polystichum acrosticoides) were common in the understory
' and herbaceous layer. This habitat type occurs over approximately 30 percent of the surveyed area.
Floodplain forests were found along the Neuse River floodplain and some of its tributaries. Dominant trees in
' these forests were sycamore (Plantanus occidentalis), river birch (Betula nigra), hackberry (Celtis laevigata)
and boxelder (Acer negundo). They generally had a fairly open understory and a dense herbaceous layer.
The herbaceous layer can be very diverse but in most cases honeysuckle (Lonicera japonica), stilt grass
3-2 April 2009
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AECOM Environment
(Microstegium vimineum), and Chinese privet (Ligustrum sinense) have invaded and suppressed the native
herbs. This habitat type occurs over approximately 25 percent of the surveyed area.
Cultivated fields consist of areas currently in crop rotation. Crops on the fields were generally either soybeans
or corn. This habitat type occurs over approximately 45 percent of the surveyed area.
3A Threatened and endangered species
No individual occurrences, populations, or evidence of activity of the listed species included in Table 1 were
identified during the field surveys.
Transient species, including birds and mammals, are potential users of the site habitat, at least seasonally.
These species utilize a wide range of habitat. From the limited survey that was completed in this study, it is not
possible to rule out the presence of these peripatetic, transitory or migratory species within the survey area.
3-3
April 2009
AECOM Environment
4.0 References
Environmental Laboratory. 1987. Corps of Engineers Wetland Delineation Manual, Technical Report Y-87-1.
US Army Engineer Waterway Experiment Station, Vicksburg, MS.
Munsell Color Chart. 2000. Munsell Soil Color Charts, 2000 Revised Edition.
United States Army Corps of Engineers. 2006. Laws regulating the Corps of Engineers Regulatory Program.
Website: http://www.spk.usace.army.mil/cespk-co/regulatory/regs/start,htmI
United States Geological Survey, Environmental Protection Agency. 2000. The National Hydrography
Dataset. Website: hftp://nhd.usgs.gov/chapterl/index.html
United States Fish and Wildlife Service. 2007. Lists of threatened and endangered species. Website:
http://www.fws.gov/
4-1 April 2009

1

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AECOM Environment
April 2009

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Table 2
Wetlands
Feature ID NWI Classification a Size (acreage)
W1 AWA001 PE M/PFO 3.5
WlAWA002 PFO 0.9
(a) NWI Classification: PSS = Palustrine Scrub Shrub Wetland, PEM = Palustrine Emergent Wetland,
PFO = Palustrine Forested Wetland

Table 3
Waterbodies

Feature ID
Description Bank
Width
(feet) Water
Width
(feet) Water
Depth
(feet) a
Substrate
Classification `
Quality
Natural/
Artificial
SlAWA001 Ag. Ditch 10 2 0.2 S Perennial Low Artificial
SlAWA001A Ag. Ditch 10 2 0.2 S Ephemeral Low Artificial
SlAWA001B Ag. Ditch 10 2 0.2 S Intermittent Low Artificial
SlAWA002 Stream 35 3 0.2 S Perennial High Natural
SlAWA003 Stream 6 0 0 G,S Perennial High Natural
SlAWA004 Stream 6 0 0 Si/C Ephemeral High Natural
SlAWA005 Stream 10 0 0 S Intermittent Moderate Natural
SlAWA006 Pond 220 220 5+ Si/C Perennial Moderate Artificial
SlAWA007 Stream 8 3 0.5 S,G,Co Perennial Moderate Natural
SlAWA008 Stream 6 3 0.5 G,S Intermittent Moderate Natural
SlAWA009 Stream 3-6 1-4 0.2-0.5 S Perennial High Natural
SlAWA010 Stream 8 0 0 C Ephemeral Moderate Natural
SlAWA011 Stream 6 3 0.5 S Perennial High Natural
(a) Bank width, water width, and water depth were determined based on visual estimates during field survey
' (b) Substrate: B = Bedrock, C = Clay, Si/C = Silt/Clay, S = Sand, O = Organic Material, G = Gravel, Co = Cobble
(c) Based on National Hydrographic Dataset definitions (USGS, 2000)

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Figures
AECOM Environment
April 2009
I
Map Location Legend N
VW
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°H v , n Location Map Property Boundary N
KY VA Neuse River
TN
Wastewater Treatment Plant A ECO M
' City of Raleigh Public
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Utilities Department
GA Figure 1
t 0 500 1,000 2,000 Scale: 1:24,000 Image Source: USGS 24k Topographic Quadrangle.
Feet (1 inch = 2,000 ft) Map Projection: State Plane North Carolina, NAD83, US Feet. Date. April 2009

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"N Survey Area
KY vA Neuse River
Wastewater Treatment Plant A E CO M
TN City of Raleigh Public
Utilities Department
SID GA Figure 2
0 500 1,000 2,000 Scale: 124,000 Image Source: National Aerial Imagery Program 2005.
Feet (1 inch = 2,000 ft) Map Projection: State Plane North Carolina, NAD83, US Feet. Date. April 2009

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Ell -M
Ma Location Legend
OFi V v 1-11 "" -- Wetland Line
? VA
Waterbody Line
TN Survey Area
it
1
i

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Ilk
N
A Area E Wetland Delineation
Neuse River
Wastewater Treatment Plant A ECO M
City of Raleigh Public
Utilities Department
Figure 3
0 50 100 200 Scale: 1:2400 Image Source: National Aerial Imagery Program 2005.
Feet (1 inch = 200 ft) Map Projection: State Plane North Carolina, NAD83, US Feet. Date. April 2009

14,°. ?J, TI W_.3, 4
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e A.?
td' tR t . t
t. 1 .
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Map Location Legend N
j Area B Wetland Delineation
Wetland Line
"^' vA Neuse River
Waterbody Line Wastewater Treatment Plant
Surve Area
Y City of Raleigh Public
Utilities Department
sc
Figure 4
0 50 100 200 Scale: 1.2400 Image Source: National Aerial Imagery Program 2005.
Feet (1 inch =200 ft) Map Projection: State Plane North Carolina, NA083, US Feet. Date. December 2008
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Map Location Legend N
°H n
Wetland Line Area D Wetland Delineation
va, Neuse River
- Waterbody Line Wastewater Treatment Plant + AE CUM
TN Survey Area
City of Raleigh Public
' Utilities Department
GA 8C Figure 6
0 50 100 200 S-le: 2400 Image Source: National Aerial Imagery Program 2005.
Feet (1 inch = 200 ft) Map Pro jection: State Plane North Carolina, NAD83, US Feet. Date. December 2008
t

t
Appendix A
Field Datasheets
AECOM Environment
April 2009
7041 Old Wake Forest Road, Suite 103, Raleigh, NO 27616
T: 919.872.6600 F: 919.872.7996
WATERBODY
' Waterbody Name: ? -T +Z> Ian K WaterbodY ID No.:

Centerline Re-Route Access Road Warehouse Site ther: QGI
Associated Wetland No.:

1

ENSR I AECOM
S,lAWAMI
Date:
I Client/Project Name & No.: Q OO
n4 06(a4q
Milepost:
Investigators: I'AC TA State/County/Municipality: Quad Name:
Logbook No.: Logbook Page No.:-I(->l Block/Lot/Tract No.: Picture No.: a t
PHYSICAL ATTR IBUTES
Waterbod Sketch Plan
Please include: Dire ctional & North Arrow, Centerline, Length of feature, Distances from Centerline, Photo Locations, and
Survey corridor

aS
N 3

C.0
,
.
two
L

Angle of Crossing at Centerline:
Waterbody Type Lake Pond Borrow Pit River Steam g. Ditch Other:
Stream Flow Fast Moderate Slow ery SI w None
Flow type erennial ( lows > 3 Intermittent/Seasonal Ephemeral (Flows only in Direction:
months annua (blows <3 months response to rainfall)
annually) Number of Annual Flow Events
OHWM Indicator Clea natural line on an Shelvln ested v etaf Scour Water Staining
Bent, matted or missing vegetation c aracter than Abrupt plant community change Wrack line Litter and debris
Sinuosity Straf Meandering Subsurface Flow? Yes No Unknown
Stream Depth (In.) Ora 3-6 6.12 12-18 18-24 24-36 36-48 48-60. 60+
Stream Width (ft.) . Top of Bank (at crossing location): J C) ' Water Surface (at crossing location): 1
Bank Height (ft.)
(looking downstream else Left 0 2 2- 4 6 6 8 8+
give direction you are
facing here: Right 0-2 64 4-6 6 8 8+
Bank Slope (°)
l
ki
do
l Left 0-20 20.40 40 60 0 80+
(
oo
ng
wnstream e
se
give direction you are Right 0-20 20.40 40-60 60 89+
facing here:
ENSRIAECOM
Waterbody ID No.: s to WA-00 Q '
Date: U C)K? Client/Project Name & No.: ?II V Milepost:
QUALITATIVE ATTRIBUTES
Water Appearance Clear Slightly Turbid Turbid Very Turbid Color:
Floating algal mats Obvious surface scum Sheen on surface Greenish color Other:
Stream Substrate % Bedrock Gravel Sand-ft2o Silt/Clay Organic
Aquatic Habitats Sand Bar Gravel Bar Mud Bar Gravel Riffles Deep Pools
Undercut Banks Overhanging In-stream emergent In-stream submerged Bank root systems Fringing Wetlands
trees/shrubs plants plants
?,? o?
Percent Cover (0LCO Percent Cover
Aquatic Organisms Waterfowl Fish (adult) Fish (juvenile) Frogs Turtles
Observed
Snakes Other:
Invertebrates: Intolerant Facultative olerant None
Riparian Zone Width of natural vegetation zone from edge of active channel out onto flood plain: {fl)
Circle vegetative layers: trees shrubs herbs ?tti O VJQn F--4
vQ,g. rNta-r
? Significant bare areas within riparian zone ,?a? l?v V S f?S
? Evidence of non-buffered concentrated flows
Tributary Is Natural ificial Man-Mad Ma w) tab e / Unstable
Channel Condition Channeiization/Braiding atural straig tenin Downcutting Dikes/Berms Excessive bank erosion
Disturbances ? Livestock access to riparian zone ? Manure in stream or on banks
? Waste discharge pipes present ? Other:

TIE SPECIES/ SUITABLE HABITAT Habitat ID No.:
Comments e.. pipeline crossing angle, construction constraints erosion potential, existing disturbances, and meanders
-The( -5+ a,t Ioa lc s s L peQ , C i -zed
?n,-?c..l s?f-2?'?'? %? (?a.,?.?y S t.?,?s??, v? o ?a?.?l- i? wc?c? S
l-A
STREAM QUALITY (indicate) ? High ? Moderate Low
High Quality: Natural channel (no structures or dikes; no evidence of downcutting or excessive lateral cutting); evidence of past channel alteration with significant recovery;
any dikes/levies are set back to provide access to adequate flood plain; natural vegetation extends at least one or two active channel widths on each side; banks stable and
protected by roots that extend to the base-flow elevation; water clear to tea-colored; no barriers to fish movement (seasonal water withdrawals prevent movement); many fish
cover types available; diverse and stable aquatic habitat; no disturbance by livestock or man; intolerant macroinvertebrates present.
Moderate Quality; Altered channel evidenced by rip rap and/or channelization; dikes/ievees restrict flood plain width; natural vegetation extends 1/3-1/2 of the active
channel width on each side; filtering function of riparian vegetation only moderately compromised; banks moderately unstable (outside bends actively eroding with few fallen
trees); considerable water cloudiness, submerged objects covered with green film; moderate odor; minor barriers to fish movement; 4-3 fish cover types available; fair aquatic
habitat; minimum disturbance by livestock or man; Facultative macroinvertebrates present.
Low Quality: Channel is actively downcutting or widening; rip rap and channelization excessive; flood plain restricted by dikes/levees; natural vegetation less than 1/3 of the
active channel width on each side; lack of regeneration; filtering function severely compromised; Banks unstable (inside and outside bends actively eroding with numerous
fallen trees); water very turbid to muddy; obvious pollutants (algal mats, surface scum, surface sheen); heavy odor; green color to water; severe barriers to fish movement; 2-0
fish covert es available; little to no aquatic habitat; severe disturbance b livestock or man; tolerant or no macroinvertebrates resent.
PROP 2 of 2
' 7041 Old Wake Forest Road, Suite 103, Raleigh, NC 27616
T: 919.872.6600 F: 919.872.7996
I WATERBODY
Waterbody Name: u`T -fv' wacy- Waterbody ID No.:
Centerline Re-Route. Access Road Warehouse Site then: ,6crea-
Associated Wetland No.:

ENSR I AE.COM
S I AvuA oo2
Date: g? (0-o's Client/Project Name & No.: CarzPUD (onk• Vja+taf4 Milepost:
Investigators: •S C A State/County/Municipality: NC V jo-" Quad Name:
Logbook No.: Logbook Page No.: , Block/LotfTract No.: Picture No.:
PHYSICAL ATTRIBUTES
Waterbod Sketch Plan
Please include: Diredtional & Nogh Arrow , Centerline, Length of feature, Distances from Centerline, Photo Locations, and
Survey corridor
e
?
r.
a
N T
p,,a

To-

-)V r

t?

5

Angle of Crossing at Centerline:
Waterbody Type Lake Pond Borrow Pit River tre m Ag. Ditch Other:
Stream Flow Fast Moderate low Very Slow None
Flow type rennial (F ws > Intermittent/Seasonal _ffpherneral (Flows only in Direction:
annuall (Flows <3 months response to rainfall)
annually) Number of Annual Flow Events
OHWM Indicator C Kr natural line on ban helving
1 Wrested vegetation Scour ater Staini
Bent, matted or missing vegetation 7-
1 character chaD9 s Abrupt plant community change Wrack line Litter and debris
Sinuosity Straight eanderl Subsurface Flow? Yes No Unknown
Stream Depth (In.) t? 0 3-6 6-12 12-18 18-24 24-36 36-48 48-60 60+
Stream Width (ft.) Top of Bank (at crossing location): Water Surface (at crossing location): 131
'? t
Bank Height (ft.)
(looking downstream else Left 0 2 2 4 4.6 6 8
give direction you are Right 0-2 2-4 4 6 6 8 B+
facing here: .
Bank Slope (°)
l
ki
d
l Left 0-20 20-40 40.60 60 80 80+
(
ng
oo
ownstream e
se
give direction you are Right 0-20 20-40 40.60 60-80 80+
facing here:
ENSR I AEC,OM I
Waterbody ID No.: Scw?cx?? r
Date: CIIenttPro)ect Name & No.:. "U Milepost: ,
QUALITATIVE ATTRIBUTES
Water Appearance Clear Slightly Turbid Turbid Very Turbid Color:
Floating algal mats. Obvious surface scum Sheen on surface Greenish color Other:
Stream Substrate % Bedrock Gravel Sand_(O__. Silt/Clay Organic
Aquatic Habitats and Bar Gravel Bar Mud Bar Gravel Riffles Deep Pools
Undercut Banks er angin In-stream emergent in-stream submerged nk root system Fringing Wetlands
trees/shrubs plants plants
Percent Cover Percent Cover
Aquatic Organisms Waterfowl ish (ad ) ish juve ) ro s Turtles
Observed
Snakes
Other.
Invertebrates: Intolerant Facultative Tolerant None
Riparian Zone Width of natural vegetation zone from edge of active channel out onto flood plain: j (--)n -V- (ft)
Circle vegetative layer trees hru erb
? Significant bare areas within riparian zone
? Evidence of non-buffered concentrated flows
Tributary is 64 a ur Artificial (Man-Made) Manipulated (Explain below) table / Unstable
Channel Condition Channel ization/Braiding Unnatural straightening Downcutting Dikes/Berets Excessive bank erosion
Disturbances ? Livestock access to riparian zone ? Manure in stream or on banks

resent
es
e
i
? Waste dischar
Other: - _j
C ytt, 4- e
Sh LAern e
p
g
p
p
T/E SPECIES/ SUITABLE HABITAT Habitat ID No.:
Comments (e.a. pipeline crossing angle, construction constraints, erosion potential, existing disturbances, and meanders)

ff,rtYl Y? i f
V') k& Ka+k'Lraj ?Cor ?a'i-yl
STREAM QUALITY (indicate) Hlgh ? Moderate ? Low
High Quality: Natural channel (no structures or dik ; no evidence of downcutting or excessive lateral cutting); evidence of past channel alteration with significant recovery,
any dikes/levies are set back to provide access to adequate flood plain; natural vegetation extends at least one or two active channel widths on each side; banks stable and
protected by roots that extend to the base-flow elevation; water clear to tea-colored; no barriers to fish movement (seasonal water withdrawals prevent movement); many fish
cover types available; diverse and stable aquatic habitat; no disturbance by livestock or man; intolerant macroinvertebrates present.
Moderate Quality: Altered channel evidenced by rip rap andlor channelization; dikes/levees restrict flood plain width; natural vegetation extends 1/3-1/2 of the active
channel width on each side; filtering function of riparian vegetation only moderately compromised; banks moderately unstable (outside beads actively eroding with few fallen
trees); considerable water cloudiness, submerged objects covered with green fihn; moderate odor; minor barriers to fish movement; 43 fish cover types available; fair aquatic
habitat; minimum disturbance by livestock or man; Facultative macroinvertebrates present.
Low Quality: Channel is actively downcutting or widening; rip rap and channelization excessive; flood plain restricted by dikes/levees; natural vegetation less than 1/3 of the
active channel width on each side; lack of regeneration; filtering function severely compromised; Banks unstable (inside and outside bends actively eroding with numerous
fallen trees); water very turbid to muddy; obvious pollutants (algal mats, surface scum, surface sheen); heavy odor; green color to water; severe barriers to fish movement; 2-0
fish cover types available; little to no aquatic habitat; severe disturbance by livestock or man; tolerant or no macroinvertebrates present.
PAop 2 of 2
7041 Old Wake Forest Road, Suite 103, Raleigh, NC 27616
T: 919.872.6600 F: 919.872.7996
I WATERBODY
Waterbody Name: ?? ( 2u4 (zNe_r Waterbody ID No.:
Centerline Re-Route Access Road Warehouse Site t e : 74V_-eM !7
Associated Wetland No.:

1

1
ENSR I AECOM
?Vh'%JA co -3
Date: _6S Client/Project Name & No.: C.o2PuD h ? 1 Milepost:
Investigators: SAC -rA State/County/Municipality: NG
f2 Quad Name: Ire?
Logbook No.. __
Logbook Page No.: L Block/Lot/Tract No.: Picture No.:
PHYSICAL ATTRIBUTES
Waterbod Sketch Plan
Please include: Directional & North Arrow, Centerline, Length of feature, Distances from Centerline, P oto Locations, and
Survey corridor

/V A&0
4

?? to

X36` -?
Angie of Crossing at Centerline:
Waterbody Type Lake Pond Borrow Pit River tream Ag. Ditch Other:
Stream Flow Fast Moderate Slow Very Slow Non
Flow type ennial (F ows > Intermittent/Seasonal Ephemeral (Flows only in Direction:
annually) (Flows <3 months response to rainfall)
tonths
annually) Number of Annual Flow Events
OHWM Indicator ar natural line on ban Shelving Wrested vegetation Scour ater Stains
Bent, matted or missing vegetation oil character cha s Abrupt plant community change Wrack line Litter and debris
Sinuosity Straight Meanderin Subsurface Flow? Yes No Unknown
Stream Depth (In.) 0-3 3.6 6-12 12-18 18-24 24-36 36.48 48-60 60+
Stream Width (ft.) Top of Bank (at crossing location): Water Surface (at crossing location): ? -fi?Wtul 3'
Bank Height (ft.)
(looking downstream else Left 0-2r 2-4 4-6 6-8 8+
give direction you are Right 0-2 2-4 4 6 6 8 8+
facing here:
Bank Slope Left 0.20 20 40 40.60 60-80 80+
(looking downstream else
give direction you are Right 0 20 20-40 40.60 60 80 80+
facing here:
ENSR A[COM I
, Waterbody ID No.: S I& AC03 '
Date: ?p Cllent/Project Name & No.: rib (Lo V Milepost:
QUALITATIVE ATTRIBUTES '
Water Appearance Clear Slightly Turbid Turbid Very Turbid Color:
Kb ?ie Floating algal mats Obvious surface scum Sheen on surface Greenish color Other:
Stream Substrate % Bedrock Gravel 10 Sand SiIUClay Organic
Aquatic Habitats nd Bar ravel Bar Mud Bar Gravel Riffles Deep Pools
ndercut Ban anging
C In-stream emergent In-stream submerged Bank root systems Fringing Wetlands
s
es/ pla nts plants
Percent Cover Percent Cover
Aquatic Organisms Waterfowl Fish (adult) Fish (juvenile) Frogs Turtles
Observed
Snakes Other:
KV
Invertebrates: Intolerant Facultative Tolerant None
Riparian Zone Width of natural vegetation zone from edge of active channel out onto flood plain: (ft)
Circle vegetative layers: 69 r o herb)
? Significant bare areas within riparian zone
? Evidence of non-buffered concentrated flows
Tributary Is . atur Artificial (Man-Made) Manipulated (Explain below) tabs / Unstable
Channel Condition Channel lzation/Braiding Unnatural straightening Downcutting Dikes/Berms Excessive bank erosion
Disturbances ? Livestock access to riparian zone ? Manure in stream or on banks
? Waste discharge pipes present R Other: CJ-t,, V4.t -- 64 F d' + V SS ?'g

WE SPECIES/ SUITABLE HABITAT Habitat ID No.:
Comments e.. ! line crossing angle, construction constraints, erosion potential, existing disturbances and "meanders
R c?a? I---'rPhn; aj Vb+YPe1LM Uri t ?-l? viak i -
DA-
STREAM QUALITY (indicate) High ? Moderate ? Low
High Quality: Natural channel (no structures or dikes; no evidence of downcutting or excessive lateral cutting); evidence of past channel alteration with significant recovery;
any dikes/levies are set back to provide access to adequate flood plain; natural vegetation extends at least one or two active channel widths on each side; banks stable and
protected by roots that extend to the base-flow elevation; water clear to tea-colored; no barriers to fish movement (seasonal water withdrawals prevent movement); many fish
cover types available; diverse and stable aquatic habitat; no disturbance by livestock or man; intolerant macroinvertebrates present.
Moderate Quality: Altered channel evidenced by rip rap and/or channelization; dikes/levees restrict flood plain width; natural vegetation extends 113-1/2 of the active
channel width on each side; filtering function of riparian vegetation only moderately compromised; banks moderately unstable (outside bends actively eroding with few fallen
trees); considerable water cloudiness, submerged objects covered with green film; moderate odor, minor barriers to fish movement; 4-3 fish cover types available; fair aquatic
habitat; minimum disturbance by livestock or man; Facultative macroinvertebrates present.
Low Quality: Channel is actively downcutting or widening; rip rap and channelization excessive; flood plain restricted by dikes/levees; natural vegetation less than I/3 of the
active channel width on each side; lack of regeneration; filtering function severely compromised; Banks unstable (inside and outside trends actively eroding with numerous
fallen trees); water very turbid to muddy; obvious pollutants (algal mats, surface scum, surface sheen); heavy odor; green color to water; severe barriers to fish movement; 2-0
fish cover types available; little to no aquatic habitat, severe disturbance b livestock or man; tolerant or no macroinvertebrates present,
PAav 2 of 2
' 7041 Old Wake Forest Road, Suite 103, Raleigh, NO 27616
T: 919.872.6600 F: 919.872.7996
' WATERBODY
Waterbody Name: u---T + Peuv Waterbody ID No.:
Centerline Re-Route Access Road Warehouse Site ther• -?
Associated Wetland No.:
1

ENSR I AE:C M
S tAKIAc?o L(
Date: 5_U-v? Client/Project Name & No.: Co(zfub b-4;4 We+( SMilepost:
Investigators: r?L ?? State/County/Municipality: OC W? Quad Name:
r
Logbook No.: Logbook Page No.: J Block/Lot/Tract No.: Picture No.: 10-12-
PHYSICAL ATTRIBUTES
Waterbod Sketch Plan
Please include: Directional & North Arrow, Centerline, Length of feature, Distances from Ce terline, Photo Locations, and
S
id
urvey corr
or

1
s
o? to

17 vk

Angle of Crossing at Centerline:
Waterbody Type Lake Pond Borrow Pit River rea Ag. Ditch Other:
Stream Flow Fast Moderate Slo Very Slow No e
Flow type Perennial (Flows > 3 IntermlttentlSeasonal phemeral (Flows onl 'n Direction:
months annually) (Flows <3 months se to rainfall
annually) Number of Annual Flow Events
OHWM Indicator ?p yL Clear natural line on bank Shelving Wrested vegetation Scour Water Staining
Bent, matted or missing vegetation Soil character changes Abrupt plant community change Wrack line Litter and debris
Sinuosity Strai h Meandering Subsurface Flow? Yes No Unknown
Stream Depth (In.) 0 3 3-6 6-12 12-18 18-24 . 24-36 36 46 48-60 60+
Stream Width (ft.) Top of Bank (at crossing location): Water Surface (at crossing location): Q? ?Vl O'
Bank Height
{looking downstream else Left 0-2 f> 4 4-6 6-8 8+
give direction you are
facin here:
?
Right
0-2
4-6
6-8
8+
Bank Slope (°) Left 0-20 20-40 40-60 80+
(lookin
downstream
l
g
e
se
give direction you are
Right
0-20
20-40
40-60
0-80 T
-8 0+
facing here:
ENSR I AECOM I
Waterbody ID No.: S itf wAe)ot4 '
DatJ (0 r ?g Client/Project Name & No.: pub Milepost:
QUALITATIVE ATTRIBUTES '
Water Appearance Clear Slightly Turbid Turbid Very Turbid Color: .
G n"G Floating algal mats Obvious surface scum Sheen on surface Greenish color Other:
Stream Substrate % Bedrock Gravel Sand Silt/Clay (? G Organic
Aquatic Habitats Sand Bar Gravel Bar Mud Bar Gravel Riffles Deep Pools
Undercut Banks varhangtn In-stream emergent In-stream submerged Bank root systems Fringing Wetlands
ees/shrub plants plants
Percent Cover Percent Cover
Aquatic Organisms Waterfowl Fish (adult) Fish Quvenile) Frogs Turtles
Observed
Snakes Other:
r\ f'J n-e
Invertebrates: Intolerant Facultative Tolerant None
Riparian Zone Width of natural vegetation zone from edge of active channel out onto flood plain: t- (ft)
Circle vegetative layers: trees shrubs herbs
? Significant bare areas within riparian zone
? Evidence of non-buffered concentrated flows
Tributary Is aturai Artificial (Man-Made) Manipulated (Explain below) ble / Unstable
Channel Condition Chan neiization/Braiding Unnatural straightening Downcutting Dikes/Berms Excessive bank erosion
Disturbances ? Livestock access to riparian zone ? Manure in stream or on banks
? Waste discharge pipes present ? Other:

WE SPECIES / SUITABLE HABITAT Habitat ID No.:
Comments e.. pipeline crossing angle, construction constraints, erosion potential, existing disturbances and meanders
'- Pkeme-col C"` rl re_t I {ter &C; 1 ?3-ra 9 ' QL? -i ?- vNC.2 O N?w (+,A
cLw V'da-A_A 1-PA-? l t? ,v? r oo-? 5 i n Chv -rl OtA
c
? Moderate ? Low
STREAM QUALITY (indicate) High
High Quality: Natural channel (no structures or dikes; no evidence of downcutting or excessive lateral cutting); evidence of past channel alteration with significant recovery;
any dikes/levies are set back to provide access to adequate flood plain; natural vegetation extends at least one or two active channel widths on each side; banks stable and
protected by roots that extend to the base-flow elevation; water clear to tea-colored; no barriers to fish movement (seasonal water withdrawals prevent movement); many fish
cover types available; diverse and stable aquatic habitat; no disturbance by livestock or man; intolerant macroinvertebrates present.
Moderate Quality: Altered channel evidenced by rip rap and/or channelization; dikes/levees restrict flood plain width; natural vegetation extends 1/3-1/2 of the active
channel width on each side; filtering function of riparian vegetation only moderately compromised; banks moderately unstable (outside bends actively eroding with few fallen
trees); considerable water cloudiness, submerged objects covered with green film; moderate odor; minor barriers to fish movement; 4-3 fish cover types available; fair aquatic
habitat; minimum disturbance by livestock or man; Pacultative macroinvertebrates present.
Low Quality: Channel is actively downcutting or widening; rip rap and channelization excessive; flood plain restricted by dikes/levees; natural vegetation less than 1/3 of the
active channel width on each side; lack of regeneration; filtering function severely compromised; Banks unstable (inside and outside bends actively eroding with numerous
fallen trees); water very turbid to muddy; obvious pollutants (algal mats, surface scum, stuface sheen); heavy odor; green color to water; severe barriers to fish movement; 2-0
fish cover types available; little to no aquatic habitat; severe disturbance b livestock or man; tolerant or no macroinvertebrates resent.
pave 2 of 2
' 7041 Old Wake Forest Road, Suite 103, Raleigh, NC 27616
T: 919.872.6600 F: 919.872.7996
WATERBODY
Waterbody Name: LkX ?d eAJ-W- (21 WaterbodY ID No.:
Centerline Re-Route Access Road Warehouse Site her: AY--PGA-r-C)
Associated Wetland No.:

ENSR I AEC OM
S V, W tO'3
Date: Client/Project Name & No.: Cv- uo Milepost:
Investigators: -::?-^G ?- State/County/Municipality: 'N WD?e Quad Name:
Logbook No.: 1 Logbook Page No.: $5-(p Block/Lot/Tract No.: Picture No.:

PHYSICAL ATTRIBUTES
Waterbod Sketch Plan
Please include: Directional & North Arrow, Centerline, Length of feature; Distances from Centerline, Photo Locations, and
Survey corridor
T
1
t? ?j ,r

r
S
r

fn.u` a- ?l s
-

?e - ?
Angle of Crossing at Centerline:
Waterbody Type Lake Pond Borrow Pit River Strew Ag. Ditch Other:
Stream Flow Fast Mod to Slow Very Slow Non
Flow type Perennial (Flows > 3 I ermittenUSeas nal Ephemeral (Flows only in Direction:
months annually) { lows <3 mont response to rainfall)
an m4 Number of Annual Flow Events
OHWM Indicator Clear natural line on bank Shelving Wrested vegetation Scour Water Staining
Bent, matted or missing vegetation Coll charact r ch ges Abrupt plant community change Wrack line itter and deb
Sinuoslty Straight eandedn Subsurface Flow? Yes No Unknown
Stream Depth (in.) 0-3 3-6 6-12 12-18 18.24 24-36 36-48 48-60 60+
Stream Width (ft.) Top of Bank (at crossing location): U? Water Surface (at crossing location): r AA t
Bank Height (ft.)
(looking downstream else Left 0-2 2-4
6-8
.8+
give direction you are
facing here: Right 0-2 2-4 4 6 6-8 8+
Bank Slope (°) Left 0-20 20-40 40-60 60 8 80+
(lookin
downstream else
g
give direction you are Right 0.20 20-40 40-60 60-80 B0+
facing here:
ENSR I AECOM
Waterbody ID No:: S ttkWACO'S
Date: g Client/Project Name & No.: Pup Milepost;
QUALITATIVE ATTRIBUTES '
Water Appearance Clear Slightly Turbid Turbid Very Turbid Color:
Jr.., o e*pe Floating algal mats Obvious surface scum Sheen on surface Greenish color Other:
Stream Substrate % Bedrock Gravel Sand-LW SiINClay Organic-
Aquatic Habitats a d B Gravel Bar Mud Bar Gravel Riffles Deep Pools
Undercut Banks v-erhanging In-stream emergent In-stream submerged Bank root systems Fringing Wetlands
rees/shrubs plants plants
Percent Cover Percent Cover
Aquatic Organisms Waterfowl Fish (adult) Fish Quvenile) Frogs Turtles
Observed
Snakes
Other.
n o n-e, Invertebrates: Intolerant Facultative Tolerant None
Riparian Zone Width of natural vegetation zone from edge of active channel out onto flood plain: r (ft)
Circle vegetative layers: tie hru erb
? Significant bare areas within riparian zone
? Evidence of non-buffered concentrated flows
Tributary is atural Artificial (Man-Made) Manipulated (Explain below) Is / Unstable
Channel Condition Channelization/Braiding unnatural straightening Downcutting Dikes/Berms E essive bank Bros n
Disturbances ? Livestock access to riparian zone ? Manure in stream or on banks
? Waste discharge pipes present ? Other:

T/E SPECIES / SUITABLE HABITAT Habitat ID No.:
Comments e.. pipeline crossing angle, construction constraints, erosion tential existing disturbances, and meanders
c_A nej
P?I? sera) 6-C
0-4- U- vwC-_d4UJ.e
ti0 ? ? _ : -C?i+r aS?1 ?s?+ c`+^ GP $ a-^d O??D ? l ?S
STREAM QUALITY (indicate) ? High moderate ? Low
High Quality- Natural channel (no structures or dikes; no evidence of downcutting or excessive lateral cutting); evidence of past channel alteration with significant recovery;
any dikesllevies are set back to provide access to adequate flood plain; natural vegetation extends at least one or two active channel widths on each side; banks stable and
protected by.roots that extend to the base-flow elevation; water clear to tea-colored; no barriers to fish movement (seasonal water withdrawals prevent movement); many fish
cover types available; diverse and stable aquatic habitat; no disturbance by livestock or man; intolerant macroinvertebrates present.
Moderate Quality: Altered channel evidenced by rip rap and/or channelization; dikes/levees restrict flood plain width; natural vegetation extends 1/3-1/2 of the active
channel width on each side; filtering function of riparian vegetation only moderately compromised; banks moderately unstable (outside bends actively eroding with few fallen
trees); considerable water cloudiness, submerged objects covered with green film; moderate odor; minor barriers to fish movement; 4-3 fish cover types available; fair aquatic
habitat; minimum disturbance by livestock or man; Facultative macroinvertebrates present.
Low Quality: Channel is actively downcutting or widening; rip rap and channelization excessive; flood plain restricted by dikes/levees; natural vegetation less than 1/3 of the
active channel width on each side; lack of regeneration; filtering function severely compromised; Banks unstable (inside and outside bends actively eroding with numerous
fallen trees); water very turbid to muddy; obvious pollutants (algal mats, surface scum, surface sheen); heavy odor; green color to water; severe barriers to fish movement, 2-0
fish cover types available; little to no' a uatic habitat; severe disturbance b livestock or man; tolerant or no macroinvertebrates resent.
pave 2 of 2
' 7041 Old Wake Forest Road, Suite 103, Raleigh, NC 27616
T: 919.872.660D F: 919.872.7996
t WATERBODY
Waterbody Name: t Aa, -?-V ? ?- 2 . _ Waterbody ID No.:
Centerline Re-Route Access Road Warehouse Site that: A-Q_AF `-E
Associated Wetland No.:
1
1

ENSR I AECOM

Date: Client/Project Name & No.: Cw- I S Milepost:
Investigators: State/County/Municipality: C? Quad Name: +or
Logbook No.: Logbook Page No.: Block/Lot/Tract No.: Picture No.: Z)
PHYSICAL ATTRIBUTES
Waterbod Sketch Plan
Please include: Directional & North Arrow , Centerline, Length of feature, Distances from Centerline, Photo Locations, and
Survey corridor
J??a E N T

Wc? qi;o,

M ?
?,sw
- y?
s 1 AWAdo-1
t_e
Angle of Crossing-at Centerline:
Waterbody Type Lake Pond Borrow Pit River Stream Ag. Ditch Other:
Stream Flow Fast Moderate Slow very Slow None
Flow type ennial (Flows 3
( Intermittent(Seasonal Ephemeral (Flows only in Direction:
annually
onths (Flows <3 months response to rainfall)
annually) Number of Annual Flow Events
OHWM Indicator CI ar natural line on b k Shelving wrested vegetation Scour ater Stalnin
Bent, matted or missing vegetation Soil character changes Abrupt plant community change Wrack line Litter and debris
Sinuosity Straight Meandering Subsurface Flow? Yes No Unknown
Stream,Depth (in.) 0-3 3-6 6-12 12-18 18.24 24-36 36-48 48-60 60+
Stream Width (ft.) Top of Bank (at crossing location): Water Surface (at crossing location): V t
Bank Height (ft.)
(looking downstream else Left -2 2-4 4.6 6-8 8+
give direction you are
facin here: Right 0-2 2-4 4-6 6-8 8+
Bank Slope C)
(lookin
d
t
l Left 0.20 20-40 40-60 60-80 B0+
g
owns
ream e
se
give direction you are Right 0-20 20-40 40-60 60-80 80+
facing here:
ENSR AECOM
Waterbody ID No.:
Date: Ciient/Project Name R No.: CC4-eu D Milepost:
QUALITATIVE ATTRIBUTES ,
Water Appearance Clear Slightly Turbid Turbid pry Turbi Color: G y-ze_f y
Floating algal mats Obvious surface scum Sheen on surface reenish color Other:
Stream Substrate % Bedrock_ Gravel Sand SilUClay-1m ? Organic
Aquatic Habitats Sand Bar Gravel Bar Mud Bar Gravel Riffles ep ools
Undercut Banks v In-stream emergent In-stream submerged Bank root systems Fring ng etiands
hru plants plants
Percent Cover Percent Cover
Aquatic Organisms Waterfowl fsh (adu ish Quveni ) Fro Turtles
Observed
Snakes Other:
Invertebrates: Intolerant Facultative Tolerant None
Riparian Zone Width of natural vegetation zone from edge of active channel out onto flood plain: (ft)
Circle vegetative layers trees hrub erb
? Significant bare areas within riparian zone
? Evidence of non-buffered concentrated flows
Tributary Is Natural rtiticial (Man-Ma ) Manipulated (Explain below) table / Unstable
Channel Condition Chan nelization/Braid in g Unnatural straightening Downcutting 77 7es/Borms Excessive bank erosion
Disturbances ? Livestock access to riparian zone ? Manure in stream or on banks
? Waste discharge pipes present ? Other:

WE SPECIES / SUITABLE HABITAT Habitat ID No.:
Comments e. pipeline crossing angle, construction constraints erosion potential, existing disturbances, and meanders
t 0-,ry Vv,& 1 ?'YLai* `_'Ad { n 'i'40- t? I V6 2?Ter
STREAM QUALITY (indicate) ? High Moderate ? Low
High Quality: Natural channel (no structures or dikes; no evidence of downcutting or excessive lateral cutting); evidence of past channel alteration with significant recovery;
any dikes/levies are set back to provide access to adequate flood plain; natural vegetation extends.at least one or two active channel widths on each side, banks stable and
protected by roots that extend to the base-flow elevation; water clear to tea-colored; no barriers to fish movement (seasonal water withdrawals prevent movement); many fish
cover types available; diverse and stable aquatic habitat; no disturbance by livestock or man; intolerant macroinvertebrates present,
Moderate Quality: Altered channel evidenced by rip rap and/or channelization; dikes/levees restrict flood plain width; natural vegetation extends 113-1/2 of the active
channel width on each side; filtering function of riparian vegetation only moderately compromised; banks moderately unstable (outside bends actively eroding with few fallen
trees); considerable water cloudiness, submerged objects covered with green film; moderate odor; minor barriers to fish movement; 4-3 fish cover types available; fair aquatic
habitat; minimum disturbance by livestock or man; Facultative macroinvertebrates present.
Low Quality: Channel is actively downcutting or widening; rip rap and channelization excessive; flood plain restricted by dikes/levees; natural vegetation less than 1/3 of the
active channel width on each side; lack of regeneration; filtering function severely compromised; Banks unstable (inside and outside bends actively eroding with numerous
fallen trees); water very turbid to muddy; obvious pollutants (algal mats, surface scum, surface sheen); heavy odor; green color to water; severe barriers to fish movement; 2-4
fish types available little to no aquatic habitat; severe disturbance b livestock or man; tolerant or no macroinvertebrateS resent.
polyp 2 of 2
ENSR I AECOM

' 7041 Old Wake Forest Road, Suite 103, Raleigh, NC 27616
T: 919.872.6600 F: 919.872.7996
' WATERBODY
Waterbody Name: Wr +v NOAV- Waterbody ID No.:
Centerline Re-Route Access Road Warehouse Site ther: jACt?eCA
' AssnciatAd W.Pttanrf Mn -

Milepost:
Quad Name: C
1
1
1
1
1
1
1
too'
+dr
ionai & North Arrow, Genteriine, Length of feature, Distances from Centerline, Photo Locations, and
3vt
Angle of Crossing at Centerline:
Waterbody Type Lake Pond Borrow Pit River Str a Ag. Ditch Other:
Stream Flow Fas Moderate Slow Very Slow None
Flow type rennial (Flo s 3 Intermittent/Seasonal Ephemeral (Flows only in Direction:
m thsanuual (Flows <3 months response to rainfall)
annually) Number of Annual Flow Events
pHWM Indicator CI natural line on b k helvin Wrested vegetation Scour ater Stainin
Bent, matted or missing vegetation it character c gas Abrupt plant community change Wrack line Litter and debris
Sinuosity Straight
7
Mean eri
Subsurface Flow?
Yes
No
Unknown
Stream. Depth (in.) 0 3 3 fi 6-12 12.18 18-24 24-36 36-48 48-60 60+
Stream Width (ft.) Top of Bank (at crossing location): Water Surface (at crossing location): t {-+ W jl? t
Bank Height (ft.)
(looking downstream else Left 0.2
2-4
4-6
6-8
8+
give direction you are
g

ive here:
facing _)

ight

-2 ?

2-4

4-6

-8

+
Bank Slope (°)
(looking downstream else Left 0-20 20-40 40- 60-80 80+
give direction you are
_ 1--- 1
? 1 Right 0-20 20.40
1 40-60 0 8
1 A-0-8 80+
ENSR I AECOM I
Waterbody ID No.: !?;k A Aw--, I
Date: g _ -t Client/Project Name & No.: , C p21 v p Milepost:
QUALITATIVE ATTRIBUTES ,
Water Appearance, Clear Slightly Turbid Turbid • Very Turbid Colon
Floating algal mats Obvious surface scum Sheen on surface Greenish color Other:
Stream Substrate % Bedrock Gravel CoWe Sand_1?1[2 Silt/Clay Organic
Aquatic Habitats (anl.Ua ravel r Mud Bar ravel Rif# Pools
derc t Ban verhan ing In-stream emergent in stream submerged nk root yste s Fringing Wetlands
rees/shrubs plants plants
Percent Cover Percent Cover
Aquatic Organisms Waterfowl adu Fish {juvenile) r
gs
o Turtles
Observed
Snakes
Other:
1 ?.?
t
-
Invertebrates: Intolerant Facultative Tolerant None
Riparian Zone Width of natural vegetation zone from edge of active channel out onto flood plain: {ff)
Circle vegetative layers: trees shrub er
? Significant bare areas within riparian zone
? Evidence of non-buffered concentrated flows
Tributary Is atural Artificial (Man Made) Manipulated (Explain below) table / Unstable
Channel Condition Chan nelization/B raiding Unnatural straightening Downcutting Dikes/Berms Excessive bank erosion
Disturbances ? Livestock access to riparian zone ? Manure in stream or on banks
? Waste discharge pipes present Other:vl`m PAc*_

WE SPECIES / SUITABLE HABITAT Habitat ID No.:
Comments e.. pipeline crossing angle, construction constraints, erosion potential, existing disturbances, and meanders
Gad Q0.m ?(3 1 h S 0.S C)'J4X f-t C-t' o rn nO ?S t W'?F ?OCa,
STREAM QUALITY (indicate) ? High Moderate ? Low
1Htgh Quality: Natural channel (no structures or dikes; no evidence of downcutting or excessive lateral cutting); evidence of past channel alteration with significant recovery;
any dikes/levies are set back to provide access to adequate flood plain; natural vegetation extends at least one or two active channel widths on each side; banks stable and
protected by roots that extend to the base-flow elevation; water clear to tea-colored; no barriers to fish movement (seasonal water withdrawals prevent movement); many fish
cover types available; diverse and stable aquatic habitat; no disturbance by livestock or man; intolerant macroinvertebrates present.
Moderate Quality: Altered channel evidenced by rip rap and/or channelization; dikes/levees restrict flood plain width; natural vegetation extends 1/3-1/2 of. the active
channel width on each side; filtering function of riparian vegetation only moderately compromised; banks moderately unstable (outside bends actively eroding with few fallen
trees); considerable water cloudiness, submerged objects covered with green film; moderate odor; minor barriers to fish movement; 4-3 fish cover types available; fair aquatic
habitat; minimum disturbance by livestock or man; Facultative macroinvertebrates present,
Low Quality: Channel is actively downcutting or widening; rip rap and channelization excessive; flood plain restricted by dikes/levees; natural vegetation less than 1/3 of the
active channel width on each side; lack of regeneration; filtering function severely compromised; Banks unstable (inside and outside bends actively eroding with numerous
fallen trees); water very turbid to muddy; obvious pollutants (algal mats, surface scum, surface sheen); heavy odor; green color to water; severe barriers to fish movement; 2-0
fish cover types available, little to no aquatic habitat; severe disturbance b livestock or man, tolerant or no macroinvertebrates resent.
PeaP2nf2
7041 Old Wake Forest Road, Suite 103, Raleigh, NC 27616
T: 919.872.6600 F: 919.872.7996
n WATERBODY
' Waterbody Name: ?T ?t? LA Q 4 Ve_f- Waterbody ID No.:
' Centerline Re-Route Access Road Warehouse Site 6er::) A-l-,&K-1E7
Associated Wetland No.:
ENSR I AECOM
S lAwAw2
Date: Client/Project Name & No.: CC(?-q'U0 C6_V'q? Milepost:
Investigators: -rte State/County/Municipality: waved Quad Name: r
Logbook No.: ( Logbook Page No.:R Block/Lot/Tract No.: Picture No.: a3- 2) j
ions,
Angle of Crossing at Centerline:
per tread Ag. Ditch Other:
Slow Very Slow Non
I Ephemeral (Flows only in
response to rainfall) Direction:

Number of Annual Flow Events
elvin Wrested vegetation Scour Water Staining
Abrupt plant community change Wrack line Litter and debris
Subsurface Flow? Yes No Unknown
2-18 18-24 24.36 36 48 48-60 60+
Water Surface (at crossing location): -31 8f M 3
4-6 6-8 8+
4-6 6-8 8+
40-60 60-80 80+
80+

ENSRIAFCOM
Waterbody ID No.: S
Date: Client/Project Name & No.: Wp'RA?' Milepost:
QUALITATIVE ATTRIBUTES
Water Appearance Clear Slightly Turbid Turbid ery Turbi Color: Or _
Coating algal m Obvious surface scum Sheen on surface Greenish.color Other:
Stream Substrate % Bedrock- Gravel It-') Sand d Silt(Clay Organic
Aquatic Habitats and ravel Mud Bar Gravel R les eep Pools
Undercut Banks verh n g In-stream emergent In-stream submerged ank roofsyste s Fringing Wetlands
rees/shr plants plants
Percent Cover Percent Cover
Aquatic Organisms Waterfowl tsh a ) ish uve ile) ro s Turtles
Observed
Snakes Other:
Invertebrates: Intolerant Facultative Tolerant None
Riparian Zone Width of natural vegetation zone from edge
ofactive channel out onto flood plain: r (ft)
/
Circle vegetative layers: ress hru s fa
? Significant bare areas within riparian zone
? Evidence of non-buffered concentrated flows
Tributary Is atural Artificial (Man-Made) Manipulated (Explain below) table / Unstable
Channel Condition Channelization/Braiding Unnatural straightening Downcutting Dikes/Berms Excessive bank erosion
Disturbances ? Livestock access to riparian zone ? Manure in stream or on banks
? Waste discharge pipes present Other: J?0061 e h

WE SPECIES / SUITABLE HABITAT Habitat ID No.:
Comments e. pipeline cros?sinn gangle, construction constraints, erosion potential, existing disturbances, and meanders r,r
rR_a-r^ ?? S Y 1('? o ?(Q?( C' l f?l?l
(pre
STREAM QUALITY (indicate) ? High Moderate ? Low
High Quality: Natural channel (no structures or dikes; no evidence of downcutting or excessive lateral cutting); evidence of past channel alteration with significant recovery;
any dikes/levies are set back to provide access to adequate flood plain; natural vegetation extends at least one or two active channel widths on each side; banks stable and
protected by roots that extend to the base-flow elevation; water clear to tea-colored; no barriers to fish movement (seasonal water withdrawals prevent movement); many fish
cover types available; diverse and stable aquatic habitat; no disturbance by livestock or man; intolerant macroinvertebrates present.
Moderate Quality: Altered channel evidenced by rip rap and/or channelization; dikes/levees restrict flood plain width; natural vegetation extends 113-1/2 of the active
channel width on each side; filtering function of riparian vegetation only moderately compromised; banks moderately unstable (outside bends actively eroding with few fallen
trees); considerable water cloudiness, submerged objects covered with green film; moderate odor; minor barriers to fish movement; 4-3 fish cover types available; fair aquatic
habitat; minimum disturbance by livestock or man; Facultative macroinvertebrates present.
Low Quality: Channel is acdvcly downcutting or widening; rip rap and charmelization excessive; flood plain restricted by dikestlevees; natural vegetation less than 1/3 of the
active channel width on each side; lack of regeneration; filtering function severely compromised; Banks unstable (inside and outside bends actively eroding with numerous
fallen trees); water very turbid to muddy; obvious pollutants (algal mats, surface scum, surface sheen); heavy odor; green color to water; severe barriers to fish movement; 2-0
fish covert es available; little to no aquatic habitat severe disturbance b livestock or man; tolerant or no macroinvertebrates resent.

r
pope 2 of 2
7041 Old Wake Forest Road, Suite 103, Raleigh, NC 27616 Cn C, r yp
7: 919.872,6600 F: 919.872.7996 EN5R r?t...i.nCJt?'1
WATERBQDY 94r-
Waterbody Name: ux +D ?M&V_ e??Ve_r- Waterbody ID No.: Zfh?o
Centerline Re-Route Access Road Warehouse Site the EE
Associated Wetland No... ?N IAWAff)I
Date: Client/Project Name & No.: CUr L.DYx?vje,?kro( Milepost:
Investigators: LTA State/County/Municipality: tic, eo Quad Name: .??
Logbook No.: Lo book Page No.: Block/Lot/Tract No.: Picture No.: a- 3I
PHYSICAL, ATTRIBUTES qc- as-t 00
Waterbod Sketch Plan
Please include: Directional & North Arrow, Centerline, Length of feature, Distances from Centerline, Photo Locations, and
Survey corridor

amt

'/V

Angle of Crossing at Centerline:
Waterbody Type Lake Pond Borrow Pit River Stream Ag. Ditch Other:
Stream Flow Fast Moderate Slow Very Slow None
Flow type Perennial (Flows > 3 ermittentlSeaso I Ephemeral (Flows only in Direction:
months annually) lows <3 months response to rainfall) Number of Annual Flow Events
annua y
OHWM Indicator CI r natural line bank helving Wrested vegetation Scour ater Stalnln
Bent, matted or missing vegetation Coll character cha es Abrupt plant community change Wrack line Litter and debris
Sinuosity Straight eanderin Subsurface Flow? Yes No Unknown
Stream Depth (in.) 0 3 3.6 6-12 12-18 18.24 24-36 36-48 48-60 60+
Stream Width (ft.) Top of Bank (at crossing location): 1 Water Surface (at crossing location): f fl/t
Bank Height (ft.)
(looking downstream else Left 2-4 4-6 6.8 8+
give direction you are
facing here: Right 2-4 4-6 6-8 8+
Bank Slope (°)
l
ki
d
t Left 0-20 20-40 60-80 80+
(
oo
ng
owns
ream else
give direction you are Right 0-20 20-40 0-6 60-80 80+
facin here:
ENSR I AFCOM
Waterbody ED No.:
elienttProject Name & No.: Date: Co (2- P U Milepost:
QUALITATIVE ATTRIBUTES
Water Appearance Clear Slightly Turbid Turbid Very Turbid Color:
Floating algal mats Obvious surface scum Sheen on surface Greenish color Other:
Stream Substrate % Bedrock. Gravel Sand-= Silt(Clay - Organic
Aquatic Habitats Sand Bar Gravel Bar Mud Bar Gravel Riffles Dee Pools.
Undercut Banks verhangin In-stream emergent In-stream submerged Bank root systems inging Wetland
rees/shrubs plants plants
Percent Cover '"7U
Percent Cover
Aquatic Organisms Waterfowl Fish (adult) ish (juvenil Frogs Turtles
Observed
Snakes Other:
Invertebrates: Intolerant Facultative Tolerant None
Riparian Zone Width of natural vegetation zone from edge of active channel out onto flood plain: (C? (ft)
Circle vegetative layers: rees shru her
? Significant bare areas within riparian zone
? Evidence of non-buffered concentrated flows

Tributary is 01
Nat r
Artificial (Man-Made)
Manipulated (Explain below)
Stable / Unstable
Channel Condition hannelizatlon/Braldin Unnatural straightening Downcutting Dikes/Berms Excessive bank erosion
Disturbances ? Livestock access to riparian zone ? Manure in stream or on banks
? Waste discharge pipes present D Other h D el e
WE SPECIES/ SUITABLE HABITAT Habitat ID No.:
Comments e.. pipeline crossing angle, construction constraints, erosion potential, existing disturbances, and meanders
(n? h u&t.c` +tj ?Jroef?(??G} C0-11V'tJS VJ( I We,l 10-A61 CW (AWA-(61
STREAM QUALITY (indicate) High ? Moderate ? Low
High Quality: Natural channel (no structures or dikes; no evidence of downcutting or excessive lateral cutting); evidence of past channel alteration with significant recovery;
any dikeshevies are set back to provide access to adequate flood plain; natural vegetation extends at least one or two active channel widths on each side; banks stable and
protected by roots that extend to the base-flow elevation; water clear to tea-colored; no barriers to fish movement (seasonal water withdrawals prevent movement); many fish
cover types available; diverse and stable aquatic habitat; no disturbance by livestock or man; intolerant macroinvertebrates present.
Moderate Quality: Altered channel evidenced by rip rap and/or channelization; dikes/levees restrict flood plain width; natural vegetation extends 1/3-1/2 of the active
channel width on each side; filtering function of riparian vegetation only moderately compromised; banks moderately unstable (outside bends actively eroding with few fallen
trees); considerable water cloudiness, submerged objects covered with green film; moderate odor; minor barriers to fish movement; 4-3 fish cover types available; fair aquatic
habitat; minimum disturbance by livestock or man; Facultative macroinvertebrates present.
Low Quality: Channel is actively downcutting or widening; rip rap and channelization excessive; flood plain restricted by dikes/levees; natural vegetation less than 1/3 of the
active channel width on each side; lack of regeneration; filtering function severely compromised; Banks unstable (inside and outside bends actively eroding with numerous
fallen trees); water very turbid to muddy; obvious pollutants (algal mats, surface scum, surface sheen); heavy odor; green color to water; severe barriers to fish movement; 2-0
fish types available; little to no aquatic habitat; severe disturbance b tivestock. or man; tolerant or no maeroinvertebrates resent.
Pape 2 of 2
7041 Old Wake Forest Road, Suite 103, Raleigh, NC 27616
T: 919.872.6600 F: 919.872.7996
' WATERBODY
Waterbody Name: L T `tb NeA y fLNcen Waterbo/d?y ID No.:
¦ Centerline Re-Route Access Road Warehouse Site C7thpra?n? [
ENSR l AECOM
Sl?w?o f b
Associated Wetland No.: V
Date: 1? -'(.,_&"lient/Project Name & No.: Cb2P0() Jc6 rs?- we'" Milepost:
Investigators: J_,A G -F4 State/County/Municipality: Co Quad Name:
Logbook No.: 1 Logbook Page No.:Block/Lot/Tract No.: Picture No.: "2,1-'3 .
ces from Centerline, Photo Locations, and
Angle of
Waterbody Type Lake Pond Borrow Pit River Stream Ag. Ditch
Stream Flow Fast Moderate Slow
Flow type Perennial (Flows > 3 Intermittent/Seasonal E hemeral (Flows o
months annually) (Flows <3 month
annually)
OHWM Indicator nt { Clear natural line on bank
Bent, matted or missing vegetation Soil character changes
Sinuosity Straight Meander
Stream Depth (in.) 0-3 3-6 6.12
Stream Width (ft.) Top of Bank (at crossing. location):
Bank Height (ft.) Left 0-2 2-4
(looking downstream else
give direction you are Right 0-2
facin here:
Bank Slope (°) Left 0-20 20-40
(looking downstream else
give direction you are Right 0-20 20.40
s re s o rainfall)
Shelving Wrested vegetation
Abrupt plant community change
in Subsurface Flow?
12-18 18-24 24-36
Water Surface (at Gros;
4-6
4-6
Ong at Centerline:
Other:
Very Slow Non
Direction:
Number of Annual Flow Events
Scour Water Staining
Wrack line Litter and debris
Yes No Unknown
36-48 48-60 60+

6.8 8+
6-8 8+
60-80 80+
60-80 80+
ENSRIA[CC)M
Waterbody ID No.: S (/?'W14 t b '
Date: % 'ce --C$ Client/Project Name & No.: C'0R_ PV Milepost:
QUALITATIVE ATTRIBUTES
Water Appearance Clear Slightly Turbid Turbid Very Turbid Color
V\o V1 Floating algal mats Obvious surface scum Sheen on surface Greenish color Other:
Stream Substrate % Bedrock Gravel Sand Silt/Clay I UQ Organic
Aquatic Habitats Sand Bar Gravel Bar Mud Bar Gravel Riffles Deep Pools
Undercut Banks (Ovsrhangin In-stream emergent In-stream submerged Bank root systems Fringing Wetlands
es/shru plants plants
Percent Cover Percent Cover
Aquatic Organisms Waterfowl Fish (adult) Fish (juvenile) Frogs Turtles
Observed
Snakes
Other:
V1 V n-C Invertebrates: Intolerant Facultative Tolerant None
Riparian Zone Width of natural vegetation zone from edge of active channel out onto flood plain: (ft)
Circle vegetative layers: rees rub herbs
? Significant bare areas within riparian zone
? Evidence of non buffered concentrated flows
Tributary is at ra Artificial (Man-Made) Manipulated (Explain below) Stable / Unstable
Channel Condition Channel ization/B raiding Unnatural straightening Downcutting Dikes/Berms Excessive bank erosion
Disturbances ? Livestock access to riparian zone ? Manure in, stream or on banks
? Waste discharge pipes present ? Other: ^ 6 ^<_
WE SPECIES/ SUITABLE HABITAT Habitat ID No.:
Comments e.. pipeline crossing angle, construction constraints, erosion potential, existing disturbances, and meanders
'L._C&eA1v?ex oJ ct.xwneJl t m v O IL+W Inn U S K&'PPA CJ^ZL-t'tV
?Ct S C??CQ 6eouve r S 1 0_,IPP-0`'1rS 4D k6 ld W&A-4-4r-
+;h ?Ye?vZri-? `, C0Vk((Ve,,. ?C? riv? ? ? ??S ?L" / d,rCS?
water
STREAM QUALITY (indicate) ? High -6 - Moderate ? Low
High Quality: Natural channel (no structures or dikes; no evidence of downcutting or excessive lateral cutting); evidence of past channel alteration with significant recovery;
any dikes/levies are set back to provide access to adequate flood plain; natural vegetation extends at least one or two active channel widths on each side; banks stable and
protected by roots that extend to the base-flow elevation; water clear to tea-colored; no barriers to fish movement (seasonal water withdrawals prevent movement); many fish
cover types available; diverse and stable aquatic habitat; no disturbance by livestock or man; intolerant macroinvertebrates present.
Moderate Quality: Altered channel evidenced by rip rap and/or channelization; dikes/levees restrict flood plain width; natural vegetation extends 1/3-1/2 of the active
channel width on each side; filtering function of riparian vegetation only moderately compromised; banks moderately unstable (outside bends actively eroding with few fallen
trees); considerable water cloudiness, submerged objects covered with green film; moderate odor; minor barriers to fish movement; 4-3 fish cover types available; fair aquatic
habitat; minimum disturbance by livestock or man; Facultative macroinvertebrates present.
Low Quality: Channel is actively downcutting or widening; rip rap and channelization excessive; flood plain restricted by dikes/levees; natural vegetation less than 1/3 of the
active channel width on each side; lack of regeneration; filtering function severely compromised; Banks unstable (inside and outside bends actively eroding with numerous
fallen trees); water very turbid to muddy; obvious pollutants (algal mats, surface scum, surface sheen); heavy odor; green color to water; severe barriers to fish movement; 2-0
fish types available; little to no aquatic habitat•,severe disturbance b livestock or man; tolerant or no macroinvertebrates present.
PAOr 2 of 2
7041 Old Wake Forest Road, Suite 103, Raleigh, NC 27616
T: 919.872.6600 F: 919-872-7996
WETLAND DELINEATION DATA FORM (1987 COE METHODOLOGY)
Centerline Re-Route Access Road Warehouse Site Upland Data Point Other: Ass qa C. Wetland ID No.: w 1 A 1AJ AOU
ociated Stream ID No.:
Dale: -? Clienwro'ect Name & No.: aQ PU Milepost:
Investigators: ?G State/county/municipality: C Quad Name:
Lo book No,; Logbook Page No.: b Block/Lot(Tract No.: Picture No.: ?j
Normal Circumstances? 2 S Significantly Disturbed: el U Potential Problem Area?
Wetland Quality: igh Moderate Low
M P a ?tpzt

T.? • : f lei.. S ?S u^i i. Wetland Ty
P'u

7 .? t pe (circle one
$ry, YQ'r/?

•?:: 547 FO EM PSS Other:

at
? >? ?•„ k 4 ?. ;.?, , t r xi, ryyL ,-?
Z, i
k Vi`".i r r rtfF.f
'
1. SU L t hi a T ?• f
1. ro` ?,uS
ns l (rli 67
2. {>t1 L~ 2. Vyt
3. to

i
Mee S

w

. P n S
M

}"
4. Lra i v,v? 11^evN+? + a.
5. ?0. Y ' L-0t S A Q l- 0 5.
s. ? l vv, s c?-de ? S b-? Lr s.
7. 7.
8. 8.
9. 9.
Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC-): I C70 H dric Vegetation Criteria Met? circle one) Yes No
Remarks:
Recorded Data? ?ti rs Describe: No Recorded Data?
Depth of Surface Water: in. De th to Saturated Soil: in.
Color of Surface Water: if applicable) Depth to Free Water in Pit: y in.
Surface Water Appearance circle those that a Obvious surface scum Sheen on surface Greenish color Other:
Primary Wetland indicators (circle those that apply): SeRondary Wetland Indicators (2 or more required) (circle those that apply):
Inundated Sediment Deposits !zed Root Channels in p 12 FAC-Neutral Test
turated in Upper 12 In es Water Marks ater-Staine es Other (Explain in Remarks)
Drift Lines aina a Patterns in Wetta 5ds Loca of u ey Data
Remarks:
.a. s' ??Y 4 3•
3 .
Map Unit Name vi-517er0' OGuVt L? Soc-A .
Drainage Class:
(Series and Phase): Y
Taxonomy (Subgroup): Field Observations Confirm Mapped Type'?
Profile Description:
Depth (Inches) Horizon Matrix Color Mottle Texture, Concretions, Structure, etc.
(Munseli Moist) (Abundance/Contrast)
(? V q- tr 0 -3 ?- k' 45V) toa't ..

Circle those that Apply:
Histosol Sulfidic Odor
Histic Epipedon Aquic Moisture Regime
High Organic Content Other:
O nie?trea ~ i Sa oUS Oxidized Rhizospheres
Organic Pans in Sandy Soils Listed on Local Hydric Soils List
Concretions
Gleyed Soil
Remarks:
H roh is Vegetation Present? Yes No Is This Sampling Point Within a Wetland? Yes No
Wetland Hydrology Present? Yes No . Is This A. Isolated Wetland? Yes No
H dric Soils Present? Yes No Is This Wetland Agilgent to or 5?ualna an Associated Stream Ves No

ENSR I AECOM
WETLAND DELINEATION DATA FORM (1987 COE METHODOLOGY)
Wetland ID No.: l n
11 not abutting a stream, is there a surface connection between this wetlan nd a stream? Yes No Wate. ID No.: S
Flow between Welland and Stream is: No Flow Perennial . Intermittent . Ephemeral Subsurface Flow? Yes No
Surface flow between Wetland and Stream is: Discrete Confined Discrete & Confined verland Sheetflo Not Present
Surface flow between Wetland and Stream is: No Flow From Welland to Walerbod From Walerbod etland T rpm Wetland to Wate
Other connection with Stream? None . Ecological Separated b bermlbarrier? Yes
??5 r
pl"e C(
WIAVA-co
from Centerline, Photo Locations, and Survey corridor
PaA s&mc o?,r-elms P
Wetland Method 1: Can be used in wetlands where CIS are dry enough at the time of oonstruction to support souipment. This crossing method requires topsoil segregation, and requires no special
stabilization techniques.
Welland Method 2: Conventional Wetland Construction will be used for crossing wetlands with saturated soils otherwise unable to §wporl mainline oonstnxtion equipment. Because the soils are
saturated, there is a need to stabilize the ROW during construction.
Watland Method T PushlPull Wettand Construction will be used in large wetland areas where sufficient hWrologv is present forfbatr)g the gigelfrle in thetretlch, and grade elevation over the length
of the pushlpull area will not require damming to maintain adequate water levels for floatation of the pipe.
HIGH QUALITY WETLAND: no indication of stress or disturbance in wettand or adjacent area - diverse and mature vegetation types - hydrologic and soil indicators are characteristic of the.
specific community type - provides suitable habitat for wildlife - high quality perennial streams are often observed
MODERATE QUALITY WETLAND: mild to moderate disturbances have caused alterations in immediately adjacent areas - slightly altered natural vegetation, hydrology and( or soil
characteristics - provides suitable habitat for wildlife and vegetation - associated perennial or intermittent streams are of relatively good quality and aren't significantly disturbed
LOW QUALITY WETLAND: severe disturbances have caused significant changes to vegetation, soils, or hydrology- hydroperiod alterations, if present, have directly effected plant species-
communitycomposition has changed - noticeable stress or death of plant species- soil subsidence may have occurred in areas with decreased hydroperiod - mechanical alteration of plant
species or soils - grazing from livestock - channelization of stream courses or ditching - little suitable habitat for wildlife and vegetation - associated perennial or intermittent streams
significantly disturbed
Page 2 of 2
7041 Old Wake Forest Road, Suite 103, Raleigh, NC 27616
T: 919.872.6600 F! 919-872-7996
WETLAND DELfNEA ATA FORM (1987 COE METHODOLOGY)
Centerline Re-Route Access Road Warehouse Site Upland Dat Point Other: Wetland ID No.: `w W M I
Associated Stream ID No.: St' A (/QAW01
Date_ife Client/Project Name & No.: Pik Pty Dm C Milepost:
Quad Name: / t f lld, 4nV
I Logbook No.: I I Logbook Page No.: I Block/Lot/Tract No.: I Picture No.:

Normal Circumstances? Significantly Disturbed: Potential Problem Area?
Wetland Quality: High Moderate Low Wetland Ty pe (circle one): PFO PEM PSS Other:
?yy ?f N

1T D"IS. • yl_,n ?.?k ??-Y}r"Y,K+N<?' Y 7 ?w' t ?}

{f.S 5 f O/ ?ryy {???rP?{ .?'?+J ?` Jq/?
.0

VON; 1q.8rf' ,?41j?.
??` kCovy'Yii%K<?•i'?" <'
1. Q T LA 1. f
2. U _T
A0j

2. rj"yt S a- i 0.

i7AC
3. Sa.CC b, ? V m r 3. (1 ev' eLC 6L W:7 AC
4. a. kv ?" acro 'ham i Q S
5. 5
6. 6.
7. 7
. 8•
: i
lrl.
minant S pecies that are OBL, FACW, or FAC excludin FAC- : H dric Vegetation Criteria Met? circle one) Yes No
Remarks: ?U* rp re ?9
`
v
;
; .y.4?9?3,?? -.. too.: "{rh<... YYrtt •.?.... ?M!!<?A? '?; ? 7 ?'..p°p:?5b. ?t •.? ?iD ?V<v'.
t'? 1 3?
'.1.
%
.4
Recorded Data? Describe: No Recorded Data?
7 Depth of Surface Water: C
in.
Depth to Saturated Soil:
_12K _+ in.
Color of Surface Water. -- If applicable) Depth to Free Water in Pit; in.
Surface Water Appearance circle those that apply): Obvious surface scum Sheen on surface Greenish color ' Other:
Primary Wetland indicators (circle those that apply): Secondary Wetland Indicators (2 or more required) (circle those that apply):
Inundated Sediment Deposits Oxidized Root Channels in Upper 12 FAC-Neutral Test
Saturated in Upper 12 Inches Water Marks Water-Stained Leaves Other (Explain in Remarks)
Drift Lines
Drainage Patterns in Wetlands Local Soil Survey Data
R
` (0-4
emarks: in vq'e' d ?X d rO I ") `Pr.e Se fi +
xx
.. C nlvf v k> y .
I ?'i' 7'? + } >
.fK?f? '71 `"h`'{1 S :IEPf" [ k t .2
.1
.
,
.
..
t
Map Unit Name A
Drainage Class: ?Q rn
(Series and Phase): ' I
Vy C1
Taxonomy (Subgroup): Field Observations Confirm Mapped Type?
Profile Description:
Depth (Inches) Horizon Matrix Color Mottle Texture, Concretions, Structure, etc.
(Munsetl Moist) (Abundance/Contrast)
11104 0 L !>1brt?

Circle those that Apply:
Histosol Sulfidic Odor Organic Streaking in Sandy Solls Oxidized Rhizospheres Concretions
Histic Epipedon Aquic Moisture Regime Organic Pans in Sandy Soils Listed on Local Hydric Soils List Gleyed Soil
High Organic Content
Other;
++
Remarks: I L
?
i ..t.
Z?l N-W
ulf,
T
H dro h is Ve etation Present? Yes Is This Sampling Point WithinYa Wetland? Yes No,
Wetland H drolc Present? Yes Is This An Isolated Wetland? Yes No
H dric Soils Present? Yes Not lot This Wall-! ePeinP.o.,t,,..
L- N,"31{ I Ab..UM 1
WETLAND DELINEATION DATA FORM (1987 COE METHODOLOGY)
Wetland ID No.: V,)lA W
If not abutting a stream, is there a surface connection between this wetland and a stream? Yes No We etboclID No.:
Flow between Wetland and Stream is No Flow Perennial Intermittent Ephemeral Subsurface Flow? Yes No
Surface flow between Wetland and Stream is: Discrete Confined Discrete & Confined Overland Sheettlow Not Present
Surface flow between Wetland and Stream is: No Flow From Wetland to Waterbod From Waterbod to Wetland To/From Wetland to Walerbod
Other connection with Stream? None Ecological Separated berm/barrier? Yes No
4 is ofa ?yYt+4:y# /' .s,.ir' ar rj {
Please include: Directional & North Arrow, Centerline, Length of feature, Distances from Centerline, Photo Locations, and Survey corridor
? C
s? N14
ro

V
? s

...4 .' :i_ /,.?;. ?•--5a. x ix AT'..
44 ir. 'Stl9.?
fn i?

Lk-ea-,A-d, APA-o, pt,? In

Wetland Method 4: Can be used in wetlands where soils are dlv enough at the time of construction to support eauioment. This crossing method requires topsoil segregation, and requires no special
stabilization techniques.
Wetland Method 2: Conventional Wetland Construction will be used for crossing wetlands with sajyrat d i g1herMse unable to support mainline construction eguipment. Because the soils are
saturated, there is a reed to stabilize the ROW during construction.
Weiland Method 3: Push/Pull Welland Construotron will be used in lame wetland areas More suffiggnt hydrology is present for floating the pbeline in Metrerrch, and grade elevation over the length
of the pusWpull area will not require damming to maintaln.adequate water levels for floatation of the pipe.
'
HIGH QUALITY WETLAND: no indication of stress or disturbance in wetland or adjacent area - diverse and mature vegetation types- hydrologic and soil indicators are characteristic of the
specific community type - provides suitable habitat for wildlife - high quality perennial streams are often observed
MODERATE QUALITY WETLAND: mild to moderate disturbances have caused alterations in Immediately adjacent areas - slightly altered natural vegetation, hydrology and/ or soil
characteristics - provides suitable habitat for wildlife and vegetation - associated perennial or intermittent streams are of relatively good quality and aren't significantly disturbed
LOW QUALITY WETLAND: severe disturbances have caused significant changes tovegetation, soils, or hydrology- hydroperiod alterations, if present, have directly affected plant species-
community composition has changed - noticeable stress or death of plant species - soil subsidence may have occurred in areas with decreased hydroperiod - mechanical alteration of plant
species or soils - grazing from livestock - channelizalion of stream courses or ditching - little suitable habitat for wildlife and vegetation - associated perennial or intermittent streams

Page 2 of 2

Ii

L!

T?91987 6600 Forest Road, ENSR I AECOM
(`}WATE"ODY I
' Waterbody Name: U'T" 4:12 Waterbody ID No.: S ?+ w
Centerline Re-Route Access Road Warehouse Site digr A-,rea_. C
Associated Wetland No.. W (A-wAcy_,>-2_
1
1
1
1
Date: Client/Project Name & No.: (be-elJp YL 11ilepost:
Investigators: State/County/Municipality: K)(f WQ'U Quad Name:
Logbook No.: ( Logbook Page No.: (C(-I lock/Lot/Tract No.: Picture No.:
PHYSICAL ATTRIBUTES
Waterbod Sketch Plan
Please include: Directional & North Arrow, Centerline, Length of feature; Distances from Centerline, Photo Locations, and
Survey corridor
N
Ck C

A,,,
? N ?µK

a

kit

fie(
-----------
--
KJIA-w q?2
Angle of Crossing at Centerline:
Waterbody Type Lake Pond Borrow Pit River rea Ag. Ditch Other:
Stream Flow F oderat Slow Very Slow None
Flow type Perennial (Flows 3 Intermitter Seasonal Ephemeral (Flows only in irec ion:
tha Lauw (Flows <3 months
annually) response to rainfall)
Number of Annual Flow Events
OHWM Indicator r natural I eon flan Shelving Wrested vegetation co Water Staining
Bent, matted or missing vegetation oil character changes Abrupt plant community change rack li Litter arid debris
Sinuosity Straight Bander' Subsurface Flow? Yes No Unknown
Stream Depth (in.) 0-3 3 fi 6-12 12-18 18.24 24.36 36-48 48-60 60+
Stream Width (ft.) Top of Bank (at crossing location): Water Surface (at crossing location): iV,' V(S 3? .
Bank Height (ft.) Left 0-2 2-4 4.6 6-8 8+
(looking downstream else
give direction you are Right -2 2.4 4-6 6.8 8+
facing here:
Bank Slope (q Left 0.20 20-40 40 60 60-80 80+

(looking downstream else
give direction you are Right 0-20 20 40.60 60-80 80+
facing here:
ENSR AECOM
Waterbody ID No.:
Client/Project Name & No.: C CXO )b Date: rb? S Milepost:
QUALITATIVE ATTRIBUTES '
Water Appearance Clear Slightly Turbid Turbid Very Turbid Color:
Floating algal mats Obvious surface scum Sheen on surface Greenish color Other:
Stream Substrate % Bedrock
Gravel
Sande
SilUClay -
Organic
Aquatic Habitats A Gravel Bar Mud Bar Gravel Rlff
tes
Deep Poofs
Undercut Banks In-stream emergent In-stream submerged k root syste ringing We and
plants plants
Percent Cover Percent Cover
Aquatic Organisms Waterfowl Fish (adult) Fish (juvenile) Frogs Turtles
Observed
Snakes
Other,

Invertebrates: Intolerant acultative Tolerant None
Riparian Zone Width of natural vegetation zone from edge of active channel out onto flood plain: (ft)
Circle vegetative layers: tre s rubs `ice
? Significant bare areas within riparian zone
? Evidence of non-buffered concentrated flows
Tributary Is Natural Artificial (Man-Made) Manipulated (Explain below) Stable / Unstable
Channel Condition Channelization/Braiding Unnatural straightening Downcutting Dikes/Berms Excessive bank erasion
Disturbances ? Livestock access to riparian zone ? Manure in stream or Qn banks
? Waste discharge pipes present ? Other: kv (--> ^e-

TIE SPECIES /SUITABLE HABITAT Habitat ID No.:
Comments e.. pipeline crossing angle, construction constraints erosion potential, existing disturbances and meanders

f6r >?Q? c
STREAM QUALITY (indicate) High ? Moderate ? Low
High Quality: Natural channel (no structures or di ; no evidence of downcutdng or excessive lateral cutting); evidence of past channel alteration with significant recovery;
any dikes/levies are set back to provide access to adequate flood plain; natural vegetation extends at least one or two active channel widths on each side; banks stable and
protected by roots that extend to the base-flow elevation; water clear to tea-colored; no barriers to fish movement (seasonal water withdrawals prevent movement); many fish
cover types. available; diverse and stable aquatic habitat; no disturbance by livestock or man; intolerant macroinvertebrates present,
Moderate Quality: Altered channel evidenced by rip rap and/or channelization; dikes/levees restrict flood plain width; natural vegetation extends 113-1/2 of the active
channel width on each side; filtering function of riparian vegetation only moderately compromised; banks moderately unstable (outside bends actively eroding with few fallen
trees); considerable water cloudiness, submerged objects covered with green film; moderate odor; minor barriers to fish movement; 4-3 fish cover types available; fair aquatic
habitat; minimum disturbance by livestock or man; Pacultative macroinvertebrates present.
Low Quality: Channel is actively downoutting or widening; rip rap and channelization excessive; flood plain restricted by dikes/levees; natural vegetation less than 1/3 of the
active charmel width on each side, lack of regeneration; filtering function severely compromised; Banks unstable (inside and outside bends actively eroding with numerous
fallen tiees); water very turbid to muddy; obvious pollutants (algal mats, surface scum, surface sheen); heavy odor; green color to water; severe barriers to fish movement; 2-0
fish cover types available; little to no aquatic habitat; severe disturbance b livestock or man; tolerant orno macroinvertebrates resent,
pa pp 2 nr 2
7041 Old Wake Forest Road, Suite 103, Raleigh, NC 27616 ( r_
T: 919.872.6600 F: 919.872.7996 Et?I I ?t S R i A E- C 0,q
i ?'t
WATERBODY I
' Waterbody Name: Waterbody SID No.: S ?'??? f U
Centerline Re-Route " Access Road Warehouse Site Other: A.erx G
' Associated Wetland No.: W (q'iti12

u

Date: I _ Zdr UB Client/Project Name & No.:
i_0'9--PU p
I&I post:
Investigators: I
State/County/Municipality: NG
IA. e,
Quad Name:
Logbook No.: Logbook Page No.: I(( Block/Lot/Tract No.: Picture No.: S (,
PHYSICAL ATTRIBUTES
Waterbod Sketch Plan
Please include: Directional & North Arrow, Centerline, Length of feature, Distances from Centerline, Photo Locations, and
Survey corridor
N

G
•? 1 d
,

j Angle of Crossing at Centerline:
Waterbody Type Lake Pond Borrow Pit River tream Ag. Ditch Other:
Stream Flow Fast ode Slow Very Slow None
lowtyp r®nniah (Flo ntermittent/Seasenal fphemer-at(-Flows-enly4n---pireetien! o' -
caotltsap (Flows <3 months response to rainfall)
annually) Number of Annual Flow Events
OHWM Indicator Clear natural line on bank Shelving Wrested vegetation Scour Water Staining
Bent, matted or missing vegetation oil character chan Abrupt plant community change k Iin Litter and debris
Sinuosity Straight eanderln Subsurface Flow? Yes No Unknown
Stream Depth (in.) 0.3 3- 6-12 12-18 18-24 24 36 3648 48-60 .60+
Stream Width (ft.) Top of Bank (at crossing location): (a` Water Surface (at crossing location):
Bank Height (ft.) Left 2-4 4-6 6-8 8+
(looking downstream else
give direction you are Right 2-4 4-6 6-8 8+
facia here:
Bank Slope (°) Left 0-20 20 0 40-60 60-80 80+
(looking downstream else
give direction you are Right 0-20 20.40 40.60 60-80 80+
facia here:
ENSR I AECOM I
Waterbody ID No.: 51&vAC) Ca '
Date: 7AD Client/Project Name & No.: WP-a4_ w pt" Milepost:
QUALITATIVE ATTRIBUTES '
Water Appearance I ar Slightly Turbid Turbid Very Turbid Color:
Floating algal mats Obvious surface scum Sheen on surface Greenish color Other:
Stream Substrate % Bedrock Gravel Sand C- Silt/Clay Organic
Aquatic Habitats Sand Ba Gravel Bar Mud Bar Gravel RHfles Deep Pools
Undercut Banks verhangIng In-stream emergent In-stream submerged Bank root systems F(ging Wet an
trees/shrubs plants plants
Percent Cover Percent Cover
Aquatic Organisms Waterfowl Fish (adult) Fish (juvenile) Frogs Turtles
Observed
Snakes Other:

Invertebrates: Intolerant Facultative Tolerant None
Riparian Zone Width of natural vegetation zone from edge of active channel out onto flood plain: (ft)
Circle vegetative layers: rees shrub
? Significant bare areas within riparian zone
? Evidence of non-buffered concentrated flows
Tributary Is atura Artificial (Man-Made) Manipulated (Explain below) table / Unstable
Channel Condition Chan nelization/BraidIng Unnatural straightening Downcutting Dikes/Berms Excessive bank erosion
Disturbances ? Livestock access to riparian zone ? Manure in stream or on banks
? Waste discharge pipes present ? Other: VAC9tn?

T/E SPECIES / SUITABLE HABITAT Habitat ID No.:
1/i orA O 6<?. v-2c-
Comments e.. pipeline crossing angle, construction constraints, erosion potential, existing disturbances and meanders

C7 t1r

STREAM QUALITY (indicate) High ? Moderate ? Low
High Quality: Natural channel (no structures or dikes; no evidence of downcutting or excessive lateral cutting); evidence of past channel alteration with significant recovery;
any dikes/levies are set back to provide access to adequate flood plain; natural vegetation extends at least one or two active channel widths on each side; banks stable and
protected by roots that extend to the base-flow elevation; water clear to tea-colored; no barrier to fish movement (seasonal water withdrawals prevent movement); many fish
cover types available; diverse and stable aquatic habitat; no disturbance by livestock or man; intolerant macroinvertebrates present.
Moderate Quality: Altered channel evidenced by rip rap and/or channelization; dikes/levees restrict flood plain width; natural vegetation extends 1/3-1/2 of the active
channel width on each side; filtering function of riparian vegetation only moderately compromised; banks moderately unstable (outside bends actively eroding with few fallen
trees); considerable water cloudiness, submerged objects covered with green film; moderate odor; minor barriers to fish movement; 4-3 fish cover types available; fair aquatic
habitat; minimum disturbance by livestock or man; Facultative macroinvertebrates present.
Low Quality: Channel is actively downcutting or widening; rip rap and channelization excessive; flood plain restricted by dikes/levees; natural vegetation less than 113 of the
active channel width on each side; lack of regeneration; filtering function severely compromised; Banks unstable (inside and outside bends actively eroding with numerous
fallen trees); water very turbid to muddy; obvious pollutants (algal mats, surface scum, surface sheen); heavy odor; green color to water; severe barriers to fish movement; 2-0
fish covert es available; little to no aquatic habitat; severe disturbance b livestock or man; tolerant or no macroinvertebrates resent,
Prove 2 Af 2
7041 Old Wake Forest Road, Suite 103, Raleigh, NC 27616
T: 919372.6600 F: 919-872-7996
WETLAND DELINEATION DATA FORM (1987 COE METHODOLOGY)
Centerline Re-Route Access Road Warehouse Site Upland Data Point Other: A-Y,e4x(_Wetland ID No.: hh
Associated Stream ID No.: 5 tit
Date: t t - 7-CD Client/Project Name & No.: e p"lj tJ Cc?..?ck Milepost:
Investigators: "SAC- State/County/Municipality: N? (/?CA? :0 Quad Name:
Acx)g.
Logbook No.:
Normal Circum
Wetland Qua
2. A
3. 'Cx
4.
5.
6.
7.
e No.: (('3 ° Ll Block/Lot/Tract No.:
% Si nificantly Disturbed: ?? o
High . odera Low Wetland'
vt1 9 yG.C ?. ? r~3 1"
s VJV. ? w. ?-
' Percent of Dominant Species that are OBL, FACW, or FAC (e:
Remarks
Tl 16
x
Recorded Data? Describe
De ih of Surface Water: in.
' Color of Surface Water: lew- if a Iicabli
Surface Water Appearance circle those that apply):
O
Primary Wetland Indicators (circle those that apply):
miii12 Sediment Deposits
In es Water Marks
Drift Lines D a e Patterns in
' Remarks:
Map Unit Name
(Series and Phase): L?1J1 vv
' Taxonomy (Subgroup):
Profile Description:
Depth (inches) Horizon Matrix Color
1.
2.
- 3.
4.
5.
6.
7.
8.
0O
Picture No.: "-`T
Potential Problem Area? 1V
PEM PSS Other:
..A i .i?dl x: -is "?vim .S°E'V': if st
r _ T-
Criteria Met?
Secondary Wetland Indicators (2 or more required) (circle those that apply):
Oxidized Root Channels In Upper 12 FAC-Neutral Test
ter-Stained Leava Other (Explain in Remarks)
Local Soil Survey Data
Drainage Class:
cu'l?e d?
,,,4A(
Field Observations Confirm Mapped Type? rl_ v
Mottle Texture, Concretions, Structure, etc.
p-- t v b?(2 Z•
Co -l°z- y •-! s _

' Circle those that Apply:
Histosol
Histic Epipedon
High Organic Content
Suifidic Odor
Aquic Moisture Regime
Other:
Organic Streaking in Sandy Soils
Organic Pans in Sandy Soils
' Remarks:
H dro h is Ve elation Present? Ui Ye
No
Is This Sampling P+
' Wetland H drolo Present? Y No I8 Thls An Isolated
H dric Soils Present? a No Is This Wetland A

Oxidized Rhizospheres Concretions
Listed on Local Hydric Soils List Gleyed Soil
No
-1;.
No
ENSR I ACC;C)M
WETLAND DELINEATION. DATA FORM (1987 COE METHODOLOGY) '
Wetland ID No,: W (A'ttilAd5?j2
If not abutting a stream, is there a surface connection between this wetland and a stream? Yes No Waterbod ID No.: Si A-w LU '
Flow between Wetland and Stream is: No Flow Perennial rmitte Ephemeral Subsurface Flow? Yes No
Surface flow between Wetland and Stream Is: Discrete Confined Discrete & Confined errand Sheetflow Not Present
Surface flow between Wetland and Stream is: No Flow land to Waterbod From Waterbod to Wetland To/ rpm errand to Waterbod ,
Other connection with Stream? one Ecological Separated by berm/barrier? Yes No
' R su. ?f`t. ?,# Ali ?? f?,y4.f }_?'5s:. ? ? ? i? 2 x ?? 'x?-• ? ?'4 t?'?F ?« F v??3 C1{
?' .# M:. '•'tQ? 3f +3,.. 4),.' 'd , Y f' u ..?a
Please include: Directional & North Arrow, Centerline, Length of feature, Distances from Centerline, Photo Locations, and Survey corridor '
1
• y 1
sl 1,
I. MWNI-11
20- AN
1
,
Wetland Method 1: Can be used in wetlands where soils e d enough at the time of constnCtton to suWofl epuroment. This crossing method requires topsoil segregation, and requires no special
stabilization techniques.
Wetland Method 2: Conventional Wetland Construction will be used for crossing wetlands with saturated sorts otherwise unable to support mainline construction eauiomenL Because the soils are
saturated, there is a need to stabilize the ROW during construction.
Wetland Method 3: PustUPu11 Wetland ConstrUotion will be used in iaega wetland areas where a Ificlent hy0rolQgy is present forfloatino lira piceline in the-trench. and grade elevation over the length t
of the pushlpull area will riot require damming to maintain adequate water levels for floatation of the pipe.
HIGH QUALITY WETLAND: no indication of stress or disturbance In wetland or adjacent area- diverse and mature vegetation types - hydrologic and soil indicators are characteristic of the
specific community type - provides. suitable habitat for wildlife -high quality perennial streams are often observed
MODERATE QUALITY WETLAND: mild to moderate disturbances have caused alterations In Immediately adjacent areas - slightly aftered natural vegetation, hydrology and( or soil
characteristics - provides suitable habitat for wildlife and vegetation- associated perennial or intermittent streams are of relatively good quality and aren't significantly disturbed ,
LOW QUALITY WETLAND: severe disturbances have caused significant changes to vegetation, soils, or hydrology- hydroperiod alterations, if present, have directly affected plant species -
community composition has changed - noticeable stress or death of plant species - soil subsidence may have occurred in areas with decreased hydroperiod - mechanical alteration of plant
species or soils - grazing from livestock - channelizatlon of stream courses or ditching - little suitable habitat for wildlife and vegetation - associated perennial or intermittent streams
significantly disturbed '
Page 2 of 2
1
1
1
1
' Appendix B
' Photographs
1
1
1
1
AECOM Environment
April 2009
C
a)
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