20231624 Ver 1_Morgan Creek_Permit_Support Letter Binder_20231127

TranSystems
TRANSYSTEMS
November 27, 2023
April Norton
US Army Corps of Engineers
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
2400 Pershing Road, Suite 400
Kansas City, MO 64108
Tel [phone]
www.transystems.com
Zach Thomas
NC Division of Water Resources
Raleigh Regional Office
3800 Barrett Drive
Raleigh, NC 27609
Subject: Application for Section 404 Nationwide Permit, Section 401 Water Quality
Certification and Buffer Authorization for Morgan Creek Interceptor
Chapel Hill, Orange County, North Carolina
Dear Ms. Norton and Mr. Thomas,
The Orange Water and Sewer Authority (OWASA) proposes to replace approximately 2,000
linearfeet of the Morgan Creek Interceptor, located adjacentto Morgan Creek, in Chapel Hill,
Orange County, North Carolina (Figure 1). The purpose of this letter is to request approval for
a Section 404 Nationwide Permit, Section 401 Water Quality Certification and Buffer
Authorization. In addition to this cover letter, the following has been included to assist your
review:
• Appendix A - Agent Authorizations
• Appendix B - Stream and Buffer Impact Maps
• Appendix C -Aquatic Survey Report
• Appendix D - SHPO Cultural Resource Documentation
• Appendix E - Jurisdictional Determination and Buffer Authorization Documentation
PROJECT DESCRIPTION
OWASA's wastewater collection system conveys flow to the Mason Farm Wastewater
Treatment Plant (WWTP) from four sewer basins (Bolin Creek, Booker Creek, Little Creek, and
Morgan Creek). Flow from the Morgan Creek Basin represents nearly half of the flow in the
OWASA service area and is conveyed through approximately 106 miles of pipe to the Morgan
Creek Pump Station and pumped into the WWTP. The basin's main interceptor, which runs
parallel to and occasionally crossing Morgan Creek, varies in size from 12 inches to 60 inches.
A section of this interceptor has been shown, through flow monitoring and hydraulic
modeling, to have hydraulic deficiencies and risk of sewer overflows at 30 manholes during
the modeled design storm conditions. Additionally, the pipe at an aerial creek crossing within
this section has been found to have significant deterioration at the pipe invert. Both of these
problems carry significant risk of environmental damage due to the interceptor's proximity
to Morgan Creek.
[1]

TRANSYSTEMS
PURPOSE AND NEED
The purpose of the proposed project includes the upsizing of approximately 2,000 linear feet
of this interceptor from 24" to 30" diameter. The improvements will reduce the potential for
damage to the existing structures and infrastructure due to sewer overflow and/or failure and
increase sewer line capacity to meet current and future needs.
NEPA/SEPA COMPLIANCES
The improvements did not require the preparation and submittal of an environmental
document under the North Carolina State Environmental Protection Act (SEPA) guidelines.
Funding for the project is provided by OWASA. In addition, the project will not result in
greater than 10-acres of land disturbance on public land.
RESOURCE STATUS
Water Quality Classification
The proposed project corridor begins at and ends in the Town of Chapel Hill, Orange County,
North Carolina. The proposed utility will be located parallel with Morgan Creek, which flows
west southwest to Jordan Lake in the Cape Fear River Basin. Morgan Creek is a classified as a
Water Supply IV (WS-IV) and Nutrient Sensitive Water (NSW) by the NC Division of
Environmental Quality. Streamside riparian zones within the study area are protected under
provisions of the Jordan Lake Riparian Buffer rules administered by the State of North
Carolina and the Town of Chapel Hill. The reach of Morgan Creek within the project limits is
not listed as impaired by NCDWR.
Jurisdictional Determination
Waters of the U.S. identified within the project study area include 3,351 linear feet of
jurisdictional stream. No wetlands are present in the project study area.
Jurisdictional delineations have been completed for the project. The delineation was verified
by both the US Army Corps of Engineers (USACE), NC Division of Water Resources (DWR) and
Town of Chapel Hill Public Works Department, Stormwater Division. Approvals are included
in the Appendix E.
SUMMARY OF IMPACTS
OWASA is committed to incorporating all reasonable and practicable design features to avoid
and minimize jurisdictional impacts and to provide full compensatory mitigation of all
remaining, unavoidable jurisdictional impacts. Avoidance measures were taken throughout
the planning and design stages, and minimization measures were incorporated as part of the
project design.
[21

TRANSYSTEMS
The project will require one stream crossing at Morgan Creek. The installation will be
completed via open cut and includes bank stabilization. Permanent stream impacts from the
installation will result in 56 linear feet (3,393.16 sq. ft.) of permanent impact. No temporary
stream impacts are proposed.
Riparian buffer impacts proposed are listed in Table 1 below. Temporary and permanent
impacts proposed will result from the clearing associated with the temporary and 15-foot
wide permanent maintenance easement.
Table 1. Riparian Buffer Impacts
Zone 1
Zone 2
Site #
Impact Type
Per or
Stream
Impact
Impact
Temp
Name
(sq. ft.)
(sq. ft.)
B1
Allowable
Temporary
Morgan
0
107.92
Creek
Allowable
Morgan
B2
Permanent
Creek
401.45
5324.38
Allowable
Morgan
B3
Temporary
Creek
1,942.73
1,958.26
Allowable
Morgan
B4
Temporary
Creek
186.44
0
Allowable
Morgan
B5
Temporary
Creek
0
201.85
Allowable
Morgan
B6
Temporary
Creek
0
221.94
Allowable
Morgan
B7
Permanent
Creek
0
10,539.97
Allowable
Morgan
B8
Temporary
Creek
6,275.26
0
Allowable
Morgan
B9
Permanent
Creek
6,980.46
0
Allowable
Morgan
B10
Temporary
Creek
0
173.76
Allowable
Morgan
B11
Temporary
Creek
0
78.71
Allowable
Morgan
B12
Temporary
Creek
0
1123.26
Allowable
Morgan
B13
Temporary
Creek
49.23
0
Allowable
Morgan
B14
Temporary
Creek
456.7
0
[31

TRANSYSTEMS
Zone 1
Zone 2
Site #
Impact Type
Per or
Stream
Impact
Impact
Temp
Name
(sq. ft.)
(sq. ft.)
B14
Allowable
Temporary
Morgan
456.7
0
Creek
Allowable
Morgan
B15
Permanent
Creek
922.28
0
Allowable
Morgan
B16
Temporary
Creek
394.06
0
Allowable
Morgan
B17
Temporary
Creek
464.39
324.57
Allowable
Morgan
B18
Permanent
Creek
950.25
637.74
Allowable
Morgan
B19
Temporary
Creek
454.32
2,212.66
Allowable
Morgan
B20
Permanent
Creek
1,242.49
14,023.27
Allowable
Morgan
B21
Temporary
Creek
0
535.03
Allowable
Morgan
B22
Temporary
Creek
2,426.76
973.94
B23
Allowable
Temporary
Morgan
4,668.87
224.51
Creek
B24
Allowable
Permanent
Morgan
2,351.77
0
Creek
B25
Allowable
Temporary
Morgan
0
207.05
Creek
COMPENSATORY MITIGATION
Compensatory mitigation for impacts is not proposed for the project. All buffer impacts are
deemed allowable.
FEDERALLY PROTECTED SPECIES
The United States Fish and Wildlife Service (USFWS) lists the following federally protected
species within the study area, under the Endangered Species Act (ESA) (Table 1). For each
species, a discussion of the presence or absence of habitat is included below along with the
Biological Conclusion rendered based on survey results in the study area.
[41

TRANSYSTEMS
Table 2. ESA Federally Protected Species in the Study Area
Common Name
Federal
Habitat
Biological
Scientific Name
Status
Present
Conclusion
Perimyotissubflavus
Tricolored Bat
PE
Yes
Not Required
Fusconia mason:
Atlantic pigtoe
E
Yes
No Effect
1 IPaC countywide data checked on [May 17,2022]
PE- Proposed Endangered
E- Endangered
Tricolored Bat
Biological Conclusion: Not Required
On September 14, 2022, the U.S. Fish and Wildlife Service announced a proposal to list the
tricolored bat (Perimyotis subflavus - PESU) as endangered under the Endangered Species Act.
USFWS has not provided an official effective listing date, but it is anticipated to occur in late
2023. Upon listing, USFWS is expected to provide habitat descriptions and an area of
influence/distribution range for PESU. A review of NCNHP database, performed November 20,
2023, indicates no known occurrences of tricolored bat within 1.0 mile of the study area.
Atlantic Pigtoe
Biological Conclusion: No Effect
Freshwater mussel surveys were completed on August 4, 2022, for a total of 20.5 person hours.
Although there were portions of the survey reach with appropriate habitat, there were no
Atlantic pigtoe individuals found. Species found include Eastern elliptio (Elliptio complanata),
and Eastern creekshell (Villosa delumbis). Additionally, a review of NCNHP database, performed
November 20, 2023, indicates no known occurrences of Atlantic pigtoe within 1.0 mile of the
study area. The biological conclusion for this species is No Effect.
FEMA COMPLIANCE
The Morgan Creek Interceptor project involves removing an existing aerial sewer crossing and
installation of a new aerial sewer crossing. To determine potential impacts to the flood zone,
M&C completed topographic survey of the project area and TranSystems developed a flood
model. Based on the final design and results of the flood model, there were no identified
impacts to the flood zone and therefore TranSystems completed a "No -Rise" certification. M&C
provided the No -Rise submittal the Town of Chapel Hill on November 14, 2023 and it is
currently in review (along with other documents requested by the Town).
AVOIDANCE AND MINIMIZATION
Avoidance and minimization of impacts to protected and valued resources were incorporated
throughout the design process. A detailed delineation of wetland and streams was initially
performed to ensure the limitations of impacts to natural resources. As a result, proposed
disturbance limits were shifted to avoid impacts, where possible.
[51

TRANSYSTEMS
Several steps were taken during the planning stages of this project to substantially reduce and,
in some cases, eliminate stream and riparian impacts. Specific measures and considerations
taken to avoid and minimize impacts to streams and wetlands include:
• Realignment of the sewer location where practical to avoid placing permanent aboveground
features such as vents and manholes in wetlands
• Natural vegetated buffers being maintained where possible
• Consideration of practices such as aerial crossings, bore and jack, etc.
• Limiting areas of disturbance within wetlands where feasible to reduce construction
footprint
• Using silt fence and other enhanced erosion and sediment control measures to prevent silt
and sediment from entering stream
• Reducing permanent maintenance corridor to 15 ft; skewed to one side or the other away
from the stream in order to reestablish as much natural vegetation in the disturbed project
area once construction is complete, encompassing the entire sewer line.
All areas impacted by construction will be restored to original preconstruction grade elevation.
Once grade is reestablished in the temporary impact areas, the restored areas will be seeded
with appropriate native grasses as referenced in the Temporary and Permanent Seeding Specs
published by the North Carolina Department of Environmental Quality. Woody vegetation will
be allowed to re-establish naturally. Soil erosion during construction will be minimized by
following a DEQ-approved Erosion and Sedimentation Control Plan, submitted to the DEQ at
least 30 days prior to construction. Open cut stream crossing will be dewatered and
implemented when water levels are low and stream flow is minimal.
INDIRECT AND CUMULATIVE IMPACTS
Existing rules for the Water Quality Certification Program (15A NCAC 2H .0506(b)(4) require that
DWR determine that a project "does not result in cumulative impacts based on past or
reasonably anticipated future impacts that cause or will cause a violation of downstream
impacts, that cause or will cause a violation of downstream water quality standards".
The purpose of the proposed project is to improve capacity to meet future flow conditions. No
additional development is anticipated as a result of this project. The project will not increase
impervious surfaces.
The project is not expected to have a notable indirect effect to land use or development
patterns in the area. In addition, because few indirect impacts are anticipated, the cumulative
effect of this project, when considered in context with other past, present and future actions
and the resulting impact on notable human and natural features, should also be minimal.
If you have any questions or need additional information, please contact Anna Reusche at
[e-mail] or [phone].
Iff

TRGNSYSTEMS
Sincerely,
Anna Reusche, PWS
Senior Environmental Project Manager
[71

Appendix
Agent Authorizations

Letter of Authorization
The undersigned, on behalf of The University of North Carolina at Chapel Hill,
authorizes SEPI, Inc. to act as its agent for the limited purpose of coordinating with the
Town of Chapel Hill, U.S. Army Corps of Engineers, and the North Carolina Division of
Water Resources for the preparation and submittal of any jurisdictional determination
request, stream determination request, permit application and buffer authorization request
associated with the OWASA Morgan Creek Interceptor Project located in Orange
County, North Carolina. All documents shall be reviewed and have the written approval
of Sharon Myers or Janet Clarke from the University's Department of Environment,
Health and Safety prior to submitting to the Town of Chapel Hill, U.S. Army Corps of
Engineers and the North Carolina Division of Water Resources. This limited
authorization will terminate on either final agency action or upon written notification
from either of the parties involved.
Company Name: SEPI, Inc.
Contact Name: Anna Reusche, PWS
Client Address: UNC-Chapel Hill Environment Health and Safety
Department
1120 Estes Drive, CB# 1650
Chapel Hill, NC 27599-1650
Client Phone #: [phone] Sharon 919-843-0475 Janet
Client Fax #: [phone]
Client Email: samyers6t ehs.unc.edu, jlclarke f ehs.unc.edu
(Sign re of Client)
George E. Battle, III
Vice Chancellor for Institutional Integrity and Risk Management
Date

RALEIGH: 1 GLENWOOD AVENUE, SUITE 600, RALEIGH, NC 27603
OFFICE: 919.789.9977 1 FAX:[phone] / WWW,SEPIINC.COM
June 3, 2022
AGENT AUTHORIZATION FORM
All Blanks to Be Filled in By the Current Landowner or Municipal Official
Name: Todd Taylor, Executive Director
Address: Orange Water and Sewer Authority, 400 Jones Ferry Road
Carrboro, NC 27510
Phone: [phone]
Project Name/Description: Morgan Creek Interceptor Replacement
Date: 6/3/2022
The Department of the Army
U.S. Army Corps of Engineers, Wilmington District
P.O. Box 1890
Wilmington, NC 28402
Re: Wetlands and Streams Related Consulting and Permitting
To Whom It May Concern:
I, the current landowner or municipal official, hereby designate and authorize SEPI,
Inc. to act in my behalf as my agent in the processing of permit applications, to
furnish upon request supplemental information in support of applications, etc. from
this day forward. The 3rd day of _ June, 2022
This notification supersedes any previous correspondence concerning the agent for
this project.
Notice: This authorization, for liability and professional courtesy reasons,
is valid only for government officials to enter the property when
accompanied by SEPI staff. You should call SEPI to arrange a site meeting
prior to visiting the site.
BY: Todd Taylor BY: =n:[J-e
Print Name of Landowner or Si nature ondowmor
Municipal Official's Name Municipal Of cial '1tK
MR,

Appendix B
Stream and Buffer Impact Maps

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Appendix C
Aquatic Survey Report

Freshwater Mussel Survey Report
Morgan Creek Interceptor Improvements Project
Orange County, North Carolina
Prepared For:
4.
MC IM&CREED
ENGINEERS SURVEYORS PLANNERS
McKim & Creed
Raleigh, North Carolina
Contact Person:
Nisha Thuruthy
1730 Varsity Drive, Venture IV
Building, Suite 500
Raleigh, NC 2606-2689
November 2022

Prepared by:
1 Glenwood Avenue, Suite 600
Raleigh, NC 27603
Contact Person:
Chris Sheats
[e-mail]
919-417-2732

Table of Contents
1.0 Introduction.............................................................
2.0 Waters Impacted......................................................
2.1 303(d) Classification .............................................
2.2 NPDES Discharges .................................................
3.0 Target Federally Protected Species Description......
3.1 Atlantic Pigtoe (Fusconaia masoni)......................
3.1.1 Species Characteristics ..................................
3.1.2 Distribution and Habitat Requirements........
4.0 Survey Efforts...........................................................
4.1 Methodology........................................................
5.0 Results......................................................................
6.0 Discussion/Conclusions............................................
7.0 Literature Cited ........................................................
Appendix A. Figures:
Figure 1: Project Vicinity & Survey Locations
Figure 2: NCNHP Element Occurrences
Figure 3: NPDES Discharges
........................................................... 1
........................................................... 1
........................................................... 1
........................................................... 1
........................................................... 2
........................................................... 2
........................................................... 2
........................................................... 2
........................................................... 2
........................................................... 2
........................................................... 3
........................................................... 3
........................................................... 4

1.0 INTRODUCTION
The Orange Water and Sewer Authority (OWASA) proposes to replace approximately 2,000
linear feet of the Morgan Creek Interceptor in Orange County, North Carolina. The Morgan
Creek Interceptor Project proposes instream activities at two crossing of Morgan Creek (Figure
1). According to the United States Fish and Wildlife Service (USFWS) Information for Planning
and Consultation (IPaC) GIS planning tool (IPaC Access date: August 9, 2022), the Atlantic Pigtoe
(Fusconaia masoni) is identified as a species that could be affected by this project. The Atlantic
Pigtoe is listed as Threatened by the USFWS under the Endangered Species Act and designated
critical habitat has been established.
According to the NC Natural Heritage Program database (NCNHP, Access date: August 9, 2022)
the nearest Atlantic Pigtoe element occurrence (EO) (ID# 25468) is in New Hope Creek
approximately 18 river miles (RM) away from the project (Figure 2). The nearest designated
critical habitat for the Atlantic Pigtoe is in New Hope Creek 17 RM away.
SEPI was contracted by McKim & Creed to conduct surveys targeting the Atlantic Pigtoe as part
of the federal permitting process that requires an evaluation of potential project -related
impacts to federally protected species.
2.0 WATERS IMPACTED
Morgan Creek is located in the upper Cape Fear River Basin. Morgan Creek flows into Jordan
Lake approximately five RM downstream of the project (U.S. Geological Survey [USGS]
Hydrological Unit Code (03030002)).
2.1 303(d) Classification
The N.C. Department of Environmental Quality (NCDEQ) 2022 Final 303(d) list was reviewed to
better understand water quality upstream of the study area. There are no waters listed within
or upstream of the project. Morgan Creek is listed for exceeding benthos and fish 0.2 RM
downstream of the project (NCDEQ, 2022a).
2.2 NPDES Discharges
There are no permitted discharges within the project vicinity (NCDEQ, 2022b). The closest
permitted discharge is a Single -Family Domestic Wastewater Discharge (Permit # NCG551127)
in Morgan Creek approximately 1 RM upstream (Figure 3).
Morgan Creek Interceptor Improvements -Freshwater Mussel Survey Report November 2022
Page 1

3.0 TARGET FEDERALLY PROTECTED SPECIES DESCRIPTION
3.1 Atlantic Pigtoe (Fusconaia masoni)
3.1.1 Species Characteristics
The Atlantic Pigtoe is a freshwater mussel reaching up to 60mm in length. This species is
characterized by having a sub -rhomboidal shaped shell with a distinct posterior ridge. The
umbo is elevated well above the dorsal margin and the beak cavity is shallow. The periostracum
is yellow to dark brown and has a parchment- like texture (Bogan 2002, Bogan and Alderman
2008). Pseudocardinal and lateral teeth are well developed except for the anterior
pseudocardinal tooth in the right valve, while the interdental tooth is absent in the left valve
(USFWS 2018b).
The Atlantic Pigtoe is a tachytictic breeder, gravid females have been found from late June to
early July (Fuller 1973). Fish hosts for this species include Bluegill Sunfish (Lepomis
macrochirus), Shield Darter (Percina peltata), Longnose Dace (Rhinichthys cataractae), Rosefin
Shiner (Lythrurus ardens) and Creek Chub (Semotilus atromaculatus) (Watters and O'Dee 1997,
Wolf and Emrick 2011).
3.1.2 Distribution and Habitat Requirements
The Atlantic Pigtoe is endemic to the southern Atlantic Slope and is found from the Ogeechee
River Basin in Georgia to the James River Basin in Virginia. In North Carolina, this species is
known from the Catawba, Pee Dee, Cape Fear, Neuse, Pamlico and Roanoke River basins
(Johnson 1970, Bogan 2002). This species can be found in medium to large streams with clean,
swift waters and a stable gravel or sand and gravel substrate. Individuals are often found on the
downstream edge of riffle areas.
4.0 SURVEY EFFORTS
Field efforts were conducted by SEPI personnel Chris Sheats (ES Permit # 22-ES00558, 22-
SFC00249), Tori Fowler, David Moose, and Eric Black. Surveys were conducted on August 4,
2022.
4.1 Methodology
Visual and tactile methods using bathiscopes were employed to complete the Atlantic Pigtoe
surveys. A total of 20.5 person hours were spent surveying for the Atlantic Pigtoe focused on
appropriate habitats throughout the survey. Survey reaches extended 400 meters downstream
of each crossing and extended 100 meters upstream of each crossing.
Morgan Creek Interceptor Improvements -Freshwater Mussel Survey Report November 2022
Page 2

5.0 RESULTS
Surveys were conducted for two proposed stream crossing in Morgan Creek (Survey Reach A
and B). Morgan has a series of riffle, run, and pool habitats throughout both survey reaches.
Depths ranged from 0.5 - 1 meters, and total wetted width averaged seven meters. Stream
substrate was dominated by cobble, sand, and silt with bedrock patches. Riffles were
dominated by boulders and cobble, while runs were sand or silt. The Asian Clam (Corbicula
fluminea) was abundant, and crayfish were present through both Survey Reach A and B. No
snails were observed. Riparian buffers were moderately forested throughout both surveyed
reaches. The wastewater treatment plant is adjacent to the lower portion of Survey Reach A. .
Adjacent landuse to both survey reaches consisted of a moderately forested suburban
development. Two species of freshwater mussels were sparely observed during the survey
efforts for Survey Reach A and B. Eastern Elliptio (Elliptio complanata) was observed in both
Reaches A and B. Only three individuals of Eastern Creekshell (Villosa delumbis), listed as "State
Endangered", were observed in Reach B.
Table 1. Morgan Creek Freshwater Mussel Survey Results.
Scientific Name
I Common Name
# live
CPUE
Survey Reach A - 040822.1cros (12 hrs total time)
Elliptio complanata
Eastern Elliptio
47
3.9/hr
Survey Reach B - 040822.2cros (8.5 hrs total time)
Elliptio complanata
Eastern Elliptio
42
4.9/hr
Villosa delumbis
Eastern Creekshell
3
0.35/hr
6.0 DISCUSSION/CONCLUSIONS
The survey results indicate there are physical habitat conditions such as a defined stream
channel, substrate composition, and the presence of fish that are associated with freshwater
mussels. Impacts from adjacent land use may be limiting factors for freshwater mussel
occupation within the survey reach. The survey efforts detailed in the report serve to update
species information within Morgan Creek.
Recommended Biological Conclusion for Atlantic Pigtoe: May Affect, Not Likely to Adversely
Affect
Although appropriate habitat was present, there were no Atlantic Pigtoe individuals found.
Based on the presence of habitat, and the results of the surveys, the project may affect, but is
not likely to adversely affect the Atlantic Pigtoe.
Recommended Biological Conclusion for Atlantic Pigtoe Designated Critical Habitat: No Effect
Designated critical habitat for the Atlantic Pigtoe is not identified in Morgan Creek. The nearest
designated critical habitat is located 17 RM away in New Hope Creek. The proposed project will
have "No Effect" on the designated critical habitat for this species.
Morgan Creek Interceptor Improvements -Freshwater Mussel Survey Report November 2022
Page 3

7.0 LITERATURE CITED
Bogan, A.E. 2017. Workbook and key to the freshwater bivalves of North Carolina. North
Carolina Freshwater Mussel Conservation Partnership, Raleigh, NC 101 pp, 10 color
plates.
Bogan, AE and Alderman, J. 2008. Workbook and key to the freshwater bivalves of South
Carolina. Revised Second Edition.
North Carolina Department of Environmental Quality (NCDEQ)a. Division of Water Resources.
2022. 2022 North Carolina Final 303(d) List. https://deg.nc.gov/about/divisions/water-
resources/planning/modeling-assessment/water-quality-data -assess ment/integrated-
report-files
North Carolina Department of Environmental Quality (NCDEQ)b. Online GIS NPDES Stormwater
Permits. https://data
ncdenr.opendata.arcgis.com/datasets/aec2efd4lf844be499db8adef43f9fd3 0
(Accessed August 9, 2022.)
North Carolina Natural Heritage Program (NCNHP). 2022. Natural Heritage Element
Occurrence. (Accessed August 9, 2022.)
U.S. Fish and Wildlife Service. 2018. Endangered and Threatened Wildlife and Plants;
Threatened Species Status With Section 4(d) Rule and Critical Habitat Designation for
Atlantic Pigtoe. 50 CFR 17: 83 FIR 51570, 51570-51609 Docket No. FWS-R4-ES-2018-
0046.
U.S. Fish and Wildlife Service IPaC - Information for Planning and Consultation. Online Linkage:
https://ecos.fws.gov/ipac/ (Accessed August 9, 2022)
Watters, G.T. and S.H. O'Dee 1997. Identification of potential host: Elliptio fisheriana (Lea,
1838), Fusconaia masoni (Conrad, 1834), Fusconaia flava (Rafinesque, 1820), and
Pleurobema clava (Lamarck, 1819). Triannual Unionid Report No. 13:38.
Wolf, ED and Emrick V. 2011. Propagation and Culture of Species at Risk Atlantic Pigtoe.
Morgan Creek Interceptor Improvements -Freshwater Mussel Survey Report November 2022
Page 4

APPENDIX A
Figures

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Morgan Creek Interceptor 4 v„; Figure
Improvements Project vc
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ED and
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Orange County. North Cambia Fb.ernberctif} c

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_ Improvements Project
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AED PJPDE Discharges �Feet
m,c.
Orange County. North Carolina November2022

Appendix D
SHPO Cultural Resource Documentation

North Carolina Department of Natural and Cultural Resources
State Historic Preservation Office
Ramona M. Bartos, Administrator
Governor Roy Cooper
Secretary D. Reid Wilson
July 19, 2022
Anna Reusche
SEPI, Inc.
One Glenwood, Suite 600
Raleigh, NC 27603
Office of Archives and History
Deputy Secretary, Darin J. Waters, Ph.D.
areusche(cr�,sepiinc.com
Re: Morgan Creek Interceptor: replace 2,000 if of piping, Chapel Hill, Orange County, ER 22-1661
Dear Ms. Reusche:
Thank you for your email of June 10, 2022, regarding the above -referenced undertaking. We have reviewed
the submittal and offer the following comments.
We have conducted a review of the project and are aware of no historic resources which would be affected
by the project. Therefore, we have no comment on the project as proposed.
The above comments are made pursuant to Section 106 of the National Historic Preservation Act and the
Advisory Council on Historic Preservation's Regulations for Compliance with Section 106 codified at 36
CFR Part 800.
Thank you for your cooperation and consideration. If you have questions concerning the above comment,
contact Renee Gledhill -Earley, environmental review coordinator, at 919-814-6579
or environmental.reviewkncdcr.gov. In all future communication concerning this project, please cite the
above referenced tracking number.
Sincerely,
Ramona Bartos, Deputy
State Historic Preservation Officer
Location: 109 East Jones Street, Raleigh NC 27601 Mailing Address: 4617 Mail Service Center, Raleigh NC 27699-4617 Telephone/Fax: [phone]-6898

Appendix E
Buffer Authorization Documentation

SOW N 0.
PEL
Ms. Anna Reusche
SEPI, Inc.
One Glenwood, Suite 600
Raleigh, NC 27603
[e-mail]
PUBLIC WORKS DEPARTMENT
STORMWATER MANAGEMENT DIVISION
405 Martin Luther King, Jr. Blvd.
Chapel Hill, NC 27514-5705
Telephone [phone]
Fax [phone]
www.townofchapeU- ill.org
October 14, 2022
RE: Stream Determination for OWASA Morgan Creek Interceptor Project, Chapel Hill, NC
PIN 9797-08-2499 (partial)
Dear Ms. Reusche:
As requested, the Town Public Works Department has performed a stream determination for the project area
identified on the attached forms. This determination indicates whether different types of streams (perennial,
intermittent, and/or ephemeral) or perennial waterbodies are present on the property in question or on
nearby properties. These streams and their classifications are shown on the accompanying area map. Stream
segments regulated by the Town's Jordan Lake Watershed Riparian Buffer regulations are highlighted.
Locations of all features on the map are approximate and must be field surveyed for precise location.
This stream determination information is used to determine the location and extent of the Resource
Conservation District (RCD) and Jordan Lake Watershed Riparian Buffers. Specific land use regulations and
restrictions apply within the boundaries of these protected areas. If you are considering any kind of work on
this property, including clearing vegetation, paving, grading, or building, please consult with the Town's
Planning Department to determine the possible extent of the Resource Conservation District (RCD) and Jordan
Lake Watershed Riparian Buffer on this property and the applicable corresponding restrictions.
This stream determination will remain in effect for five years from the date of the last site visit, after which
a new stream determination with site visit will be required.
In accordance with the Town's procedures, you may appeal this administrative decision to the Town Manager.
If you wish to do so, you must file your written appeal accompanied by any materials you believe support
your appeal, within 30 days of receipt of this letter.
If you have questions regarding this stream determination, please contact me at [phone] or
[e-mail]. If you have questions about the application of the Town's Resource
Conservation District (RCD) or Jordan Watershed Riparian Buffer regulations to this property, please contact
the Planning Department at [e-mail] or [phone]. You may also view
information about buffer regulations online at: http://www.townofchapelhill.org/stormwater.
Sincerely,
Allison Schwarz Weakley
Stormwater Analyst

PUBLIC WORKS DEPARTMENT
STORMWATER MANAGEMENT DIVISION
405 Martin Luther King, Jr. Blvd.
Chapel Hill, NC 27514-5705
Telephone [phone]
Fax [phone]
www.townofchapell-ill.org
STREAM DETERMINATION SITE VISIT RESULTS
Property Information
Parcel ID Number (PIN)
Address / Location Description
9797-08-2499 (partial)
OWASA Morgan Creek Interceptor Project on
UNC Property, Chapel Hill
These are the results of a site visit to the property(ies) listed above for a stream determination
conducted on 10/11/2022 by Town Staff:
❑ No perennial, intermittent, or ephemeral streams or perennial waterbodies were identified
on or near the property(ies) in question.
❑ Perennial, intermittent, or ephemeral streams, or perennial waterbodies, were identified on
or near the property(ies) in question and are shown on the attached map(s).
A map showing water features, their Town flow classifications, presence of Jordan Watershed
Riparian Buffers, and their approximate locations is attached. Note that Resource
Conservation District (RCD) buffers may also apply but are not shown. Origins or breakpoints
that have been flagged in the field are marked on the map. Stream classification forms and
additional site visit notes and maps are also attached.
Other conditions exist which may affect the location of the Resource Conservation District
(RCD) or Jordan Watershed Riparian Buffer:
M FEMA floodzone is mapped in the area. Precise location of the Base Flood Elevation and
associated RCD must be determined by a field survey commissioned by the owner or a
representative.
❑ Segments of perennial or intermittent stream are piped in the area, as shown on the map.
These segments do not have an associated Jordan Watershed Riparian Buffer, but do have an
associated buffer if the RCD applies.
❑ Possible Jurisdictional Wetlands have been identified in the area. A formal review by a
professional certified in Jurisdictional Wetland Delineation is recommended if impacts to
wetlands are anticipated.
WAY,
1 n/1 1 /9m9
Town Staff Signature
uate
Version7/24/2020

Stream Determination Area Map
••• Unclassified Stream ® OWASA Manholes Address: Morgan Creek OWASA Interceptor Project
• Ephemeral Stream - OWASA Gravity Sewer Mains
-- Intermittent Stream Chapel Hill, NC
Perennial Stream ® 500-year Floodplain Parcel ID: 9797-08-2499
Wide Perennial Stream ® 100-year Floodplain
® Culverts 0 175 350 700 Feet (1V�
2-foot Contours © Ephemeral Breakpoint II
© Intermittent Breakpoint I i i i I i i i
10-foot Contours 1 inch = 350 feet
0 Perennial Breakpoint
- Buildings
Q Parcels Q Proposed Project Area Stream locations are approximate and must be verified by survey.
OWASA Easements
.....� Buffers are measured from top of bank. RCD buffers are not shown
�r Addresses but may apply. Please contact the Town of Chapel Hill
Approximate Jordan Buffer ON Planning Department to verify all applicable buffers.
NCNHP Natural Area
990
,
719
Created by T n'of Chapel Hill Public. Works Depaatit ent - Stormwater
organ Creek Bluffs
Date: 1011412022
uin i 7V t i ,rai. -

USGS 24K Topographic / County Soil Survey Maps
Project Area Address: Morgan Creek OWASA Interceptor Project, Chapel Hill, NC
0 150 0 300 450 0 600 Feet parcel ID: 9797-08-2499 (partial)
N
1 inch = 500 feet Created by Town of Chapel Hill Public Works Department - Stormwater Management Division- 1011412022
k <
�r
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iN
&I

ZOZZWWW,�_
NC DWQ Stream Identification Form Version 4.11
Date: O 22 ProjectlSite: w
ASA
Evaluator. V je t4:�J,e J County:
Total Points: Stream is at least intermittent St am []termination (circle one)
[�
if? 19 or perennial if>_ 30* p Phemerai)lntermittent Perennia,
-* a+U f C"�
Latitude: 3 1-4
Longitude: - ?q. 63S 2
Other
e.g. Quad Name:
A. Geomorphology (Subtotal = 10
Absent
Weak
-
Moderate
I' Continuity of channel bed and bank
0
1
2
2. Sinuosity of channel along thalweg
0
1
2
3. In -channel structure: ex. riffle -pool, step -pool,
0
ripple -pool sequence
2
4. Particle size of stream substrate
0
1
2
5. Active/relict floodplain I
0
1
2
6. Depositional bars or benches
1
2
7. Recent alluvial deposits
0
1
2
8. Headcuts
0
1
2
9. Grade control
0
CO 5
1
10. Natural valley
0
0.5
i
11. Second or greater order channel
No
=
Yes
= 3
a artificial ditches are not rated; see discussions in manual
B. Hydrology Subtotal =
12. Presence of Baseflow e M V"
0
1
2
13. Iron oxidizing bacteria
0
1
2
14. Leaf litter
1.5
1
1 0.5
15. Sediment on plants or debris
0
0.5
1
16. Organic debris lines or piles
0
0.54
1
17. Soil -based evidence of high water table?
No
= 0
es
- 3 <
C. Biology Subtotal =
18. Fibrous roots in streambed
3
2
1
19. Rooted upland plants in streambed
3
2
1
20. Macrobenthos (note diversity and abundance)
0
1
2
21. Aquatic Mollusks
1
2
22. Fish
0
0.5
1
23. Crayfish
0
0.5
1
24. Amphibians
0
0.5
1
25. Algae D 0.5
1
26. Wetland plants in streambed y ,� ACW = 0.75; O
L = 1.5 Other = 0
'perennial streams may also be identified using other methods. See p 35 of manual.
Notes; lalveltC Laf
L
Sketch: ns e onk F-Q VL.
(YI /0"-ntog
3
3
3
3
3
3
3
I I M. 11 is
u
71
3
3
1.5
1.5
1.5
1.5
�` GL,-t%i-reS ift�&(- t44tKl of . 24 (201

2622_10l l f (SI
NC DWO Stream Identification Form Version 4.11
1�/rh j (i, (E)
Date: L D ( 2�
ProjectlSite: (ANASA
Latitude: 3,5', �� 3
Evaluator: I7 1t # { �,�--
County: r
Longitude: (�
Total Points: 10
Stream is at least intermittent
Stream DeternUnado p circle one)
Ephemeral ntermittent Perennial
Other
e.g Quad Name:
if > 19 orperennial if? 30"
A. Geomorphology Subtotal =_Ltt_)
Absent
Weak
Moderate
Strong
1' Continuity of channel bed and bank
0
1
2
3
2. Sinuosity of channel along thalweg
0
1
2
3
3. In -channel structure: ex. riffle -pool, step -pool,
ripple -pool sequence
0
Co2
3
4. Particle size of stream substrate
0
1
2
3
5. Active/relictfloodplain C l(1
1
2
3
6. Depositional bars or benches J
0
1
2`
3
7. Recent alluvial deposits
0
1
2 '
3
8. Headcuts
0
1
2
3
9. Grade control
0
CO-V
1
1.5
10. Natural valley
0
< 0.5
1
1.5
11. Second or greater order channel
o = 1j,
Yes = 3
-artificial ditches are not rated; see discussions in manual
B. Wdroloav (Subtotal
12. Presence of Baseflow
0
1
2
3
13. Iron oxidizing bacteria
0
1
2
3
14, Leaf litter
1.5
1
0.5
0
15. Sediment on plants or debris
0
0,5
1
1.5
16. Organic debris lines or piles
0
1 0.5
1
1.5
17. Soil -based evidence of high water table?
No = 0
es = 3
U. B101011y fSiihtntal = 4 1
18. Fibrous roots in streambed
3
2
1
0
19. Rooted upland plants in streambed Ct
3
2
1
0
20. Macrobenthos (note diversity and abundance)
0
1
2
3
21. Aquatic Mollusks
1
2
3
22. Fish
0.5
1
1.5
23. Crayfish
0.5
1
1.5
24. Amphibians
0.5
1
1.5
25. Algae
0.5
1
1.5
26. Wetland plants in streambed
FACW = 0.75; OBL = 1.5 Other = 0
*perennial streams may also be identified using other methods. See p. 35 of manual.
Notes:
Sketch: � - -e l& rfY ap. � l V 1 e LCV( rS .
an#�z C P&yNbv- pt-tc e ica.
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2402700 1224
NC DWQ Stream Identification Form Version 4.11
Date: D
ItZ
Project/Site:�
Latitude:
Evaluator: S�'c ott
County: OnOL
Longitude:. --_Ko29J
Total Points:
Stream Determination (circle one)
Other
Stream is at least intermittent r
Intermittent Perennial
e.g Quad Name:
if z 19 or erenniai if ? 30" !
,Ephemer4
A. Geomorphology (Subtotal = )
Absent
Weak
Moderate
Strong
1" Continuity of channel bed and bank
0
1
2
3
2. Sinuosity of channel along thalweg
0
1
2
3
3. In -channel structure: ex, riffle -pool, step -pool,
ripple -pool sequence
0
2
3
4. Particle size of stream substrate
0
1
2
3
5. Active/relict floodplain
0
1
2
3
6. Depositional bars or benches
0
1
2
3
7. Recent alluvial deposits
0
1
2
3
6, Headcuts
0
1
2
3
9. Grade control
0
0.
1
1.5
10. Natural valley
0
0.5
1
1.5
11. Second or greater order channel
o =
Yes = 3
artificial ditches are not rates; see a ssions in manual
B. H drolo Subtotal =
12, Presence of Baseflow
0
1
2
3
13. Iron oxidizing bacteria
(0
1
2
3
14. Leaf litter
1.5
0.5
0
15. Sediment on plants or debris
0
0.5
1
1.5
16. Organic debris lines or piles
0
0.5
1
1.5
17. Soil -based evidence of high water table?
No 0
Yes = 3
C. Biology (Subtotal = -IT )
18. Fibrous roots in streambed
3
2
1
0
19. Rooted upland plants in streambed
3
2
1
0
20. Macrobenthos (note diversity and abundance)
0
1
2
3
21. Aquatic Mollusks
1
2
3
22. Fish
0.5
1
1.5
23. Crayfish
0.5
1
1.5
24. Amphibians
0.5
1
1.5
25. Algae
0
0.5 1
1
1.5
26. Wetland plants in streambed
FACW = 0.75: QBL
= 1.5 Other
.perennial streams may also be identified usin other m thod
See p. 35 of m nual.
Notes: G,t
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PUBLIC WORKS DEPARTMENT
STORMWATER MANAGEMENT DIVISION
i 405 Martin Luther King, Jr. Blvd.
_r Chapel Hill, NC 27514-5705
Telephone [phone]
Fax [phone]
www.townofchapelhiH.org
REQUEST FOR STREAM DETERMINATION
Stream determinations provide information used to determine whether the Town's Resource
Conservation District (RCD) or Jordan Watershed Riparian Buffer Protection regulations apply to a
property. Town staff will typically conduct a field visit to classify streams on the property(ies) indicated
below within two weeks of a request, depending on weather conditions, staff availability, and scope of the
request. Please note that stream determinations cannot be conducted within 48 hours of a rain event.
There is no fee for stream determinations conducted by Town staff.
A stream determination report indicates the results of a stream classification. Stream classifications expire
after five years. If a stream determination has been completed on or near the property(ies) listed below
within the last five years, a site visit may not be required unless local hydrology has changed significantly
or the stream classification has expired. If a site visit is not required, the stream determination will be
based on a records review.
Requests may be emailed (aweakleva-townofchapelhill.org), faxed, dropped off at Town Hall or the
Stormwater Office, or mailed to the above address in care of the "Stormwater Analyst."
Requestor's Name: Anna Reusche, SEPI Inc
Mailing Address: One Glenwood Suite 600
City, State, ZIP: Raleigh, NC 27603
Phone / FAX / Email: [e-mail] Phone: [phone]
Check method(s) for
report to be sent: ❑ US Mail ® Email ❑ FAX ❑ Call for pickup
Signature of property owner or designated legal agent granting permission to Town Staff to enter
the property(ies) indicated below for purposes of a Stream Determination:
Owner Name(s):
(Signature)
State of North Carolina, FBO UNC
(Please print)
Company Name (if applicable):
(Date)
Property Information
Fill in both columns, orfill in Parcel ID Number (PIN) and attach a site map indicating location.
Parcel ID Number (PIN)
Address / Location Description
9797082499
See attached map
Where the total area of the property(ies) to visit is over 3 acres, please attach an as -built drawing or a
topographic map with current landmarks.
Version 2/21/2017

PUBLIC WORKS DEPARTMENT
' STORMWATER MANAGEMENT DIVISION
i 405 Martin Luther King, Jr. Blvd.
Chapel Hill, NC 27514-5705
Telephone [phone]
Fax [phone]
wvtnv.to-,vno fchape11a.org
Stream Determination Request
AUTHORIZED AGENT FOR LEGAL REPRESENTATION FORM
PROPERTY LEGAL DESCRIPTION:
PARCEL ID (PIN) _9797082499
STREET ADDRESS: See attached Vicinity Map
Please print:
Property Owner: State of North Carolina. FBC3 UNC
Property Owner:
The undersigned, owner(s) of the above described property, do hereby authorize
Anna Reusche of SEPI. Inc
(Contractor/Agent) (Name of consulting firm if applicable)
to request a stream determination on this property and to act on my/our behalf and take all actions, I/we could
have taken if present, necessary for the processing, issuance and acceptance of the stream determination for
this property.
Property Owner's Address (if different than property above):
103 Giles Horney Blvd #CB1060, Chapel Hill, NC 27599
Owner Telephone: [phone]
Email: [e-mail]
We hereby certify the abov information submitted is true and accurate to the best of our knowledge.
Own uthorized Signature Date
Owner Authorized Signature
Contractor/Agent Authorized Signature
Date
Date
I,%, eln,,I ;til akloyk'fa..:. or rn�ril to fli. ,ijrrvr :rcldres:: ni uji- (if tlr-
,tnrn �.alNr Aii,ilvsl tic, form illay :31so I,4�, dror)PF-d Off -M 1`1111 5t01n'r;A1.-]r nl:' rterrrl ntfu. -.
`'O} IN Slrr_-it Chapel Hill N F;+rr.{ui sdis,rr, Hier_,, r:: ll a+-R Ifd
version V214017

Roy Cooper, Governor
■ ■■■
■■ ■ INC DEPARTMENT OF
■■�■i NATURAL AND CULTURAL RESOURCES
■ ■■
August 16, 2022
Allison Weakley
Town of Chapel Hill
405 Martin Luther King Junior Boulevard
Chapel Hill, NC 27514
RE: OWASA Interceptor Project - Morgan Creek, Chapel Hill, NC
Dear Allison Weakley:
❑. Reid Wilson, Secretary
Misty Buchanan
Deputy Director, Natural Heritage Program
The North Carolina Natural Heritage Program (NCNHP) appreciates the opportunity to provide
information about natural heritage resources for the project referenced above.
A query of the NCNHP database indicates that there are records for rare species, important natural
communities, natural areas, and/or conservation/managed areas within the proposed project
boundary. These results are presented in the attached `Documented Occurrences' tables and map.
The attached `Potential Occurrences' table summarizes rare species and natural communities that
have been documented within a one -mile radius of the property boundary. The proximity of these
records suggests that these natural heritage elements may potentially be present in the project area
if suitable habitat exists. Tables of natural areas and conservation/managed areas within a one -mile
radius of the project area, if any, are also included in this report.
If a Federally -listed species is documented within the project area or indicated within a one -mile
radius of the project area, the NCNHP recommends contacting the US Fish and Wildlife Service
(USFWS) for guidance. Contact information for USFWS offices in North Carolina is found here:
httr)s://www.fws.gov/offices/Directory/ListOffices.cfm?statecode=37.
Please note that natural heritage element data are maintained for the purposes of conservation
planning, project review, and scientific research, and are not intended for use as the primary criteria
for regulatory decisions. Information provided by the NCNHP database may not be published
without prior written notification to the NCNHP, and the NCNHP must be credited as an information
source in these publications. Maps of NCNHP data may not be redistributed without permission.
Also please note that the NC Natural Heritage Program may follow this letter with additional
correspondence if a Dedicated Nature Preserve, Registered Heritage Area, Land and Water Fund
easement, or an occurrence of a Federally -listed species is documented near the project area.
If you have questions regarding the information provided in this letter or need additional assistance,
please contact Rodney A. Butler at rod ney.butler�ncdcr.gov or 919-707-8603.
Sincerely,
NC Natural Heritage Program
DEPAR7HEN7 OF NATURAL AND CULTURAL RESOURCES
121 W. JONES STREET. RALEIGH. NC 27603 • 1691 MAIL SERVICE CENTER. RALEIGH. NC 27609
OFC 919.707.9120 • FAX [phone]

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