20061203 Ver 1_Public Notice_20060612

1 I
I~i~l
US Army Corps PUBLIC NOTICE
Of Engineers
Wilmington District
Issue Date: June 7, 2006
Comment Deadline: July 7, 2006
Corps Action ID #: 200620159
The Wilmington District, Corps of Engineers (Corps) has received an application from
the Western Wake Regional Wastewater Management Facilities Project Partners, which
includes the Towns of Apex, Cary, Holly Springs, and Morrisville, North Carolina. The
Partners are seeking Department of the Army authorization to temporarily impact an
estimated 22.4 acres of forested wetlands, 43001inear feet of streams, and a 60-foot by
400-foot area within the Cape Fear River; and permanently impact an estimated 12.9
acres of wetlands, 1,435 linear feet of perennial streams and a 18-foot by 400-foot area
within the Cape Fear River associated with the construction of the Western Wake
Regional Wastewater Management Facilities which includes a water reclamation facility,
raw and effluent transmission lines, pumping stations, and an outfall structure in Wake
and Chatham, North Carolina.
Specific plans and location information are described below acid shown on the attached
plans. This Public Notice and all attached plans are also available on the Wilmington
District Web Site at www.saw.usace.army.mil/wetlands
Applicant: Western Wake Regional Wastewater Management
Facilities Project Partners
c/o Mr. Kim Fisher C ~ ~ ~ (~~
Town of Cary I~
420 James Jackson Avenue
Cary, North Carolina 27513 ~~N ~' ~ ~~~~
Authori gENi~ ~ WATER Q~ALIt`f
t3' wEtw~-~s AND 9iC~R.MVrA?~ @~MCb
The Corps will evaluate this application and a decide whether to issue, conditionally
issue, or deny the proposed work pursuant to applicable procedures of Section 404 of the
Clean Water Act.
Location
There are five main portions to this project: the Western Wake Water Reclamation
Facility (WRF); the West Cary Pump Station; Beaver Creek Pump Station; the outfall
structure; and several miles of effluent/raw water force main and gravity fed transmission
routes.

The proposed location for the Western Wake Water Reclamation Facility (WRF) is a 235
acre site between Old US 1 and US 1 in the New Hill Township. The northeast corner of
this site is approximately 0.2 miles west of the intersection between New Hill Holeman
Road and Old US 1, Wake County, North Carolina. The site contains unnamed stream
channels and adjacent wetlands which drain to White Oak Creek, a tributary to the Cape
Fear River (Latitude and Longitude in Decidegrees: 35.68 N; 78.94 W).
The West Cary Pump Station is an existing, permitted facility providing the Town of
Cary with needed wastewater service. It is located on Green Level West Road
approximately 0.5 miles west of the intersection between Green Level Church Road and
Green Level West Road, Wake County, North Carolina. The project partners do not
anticipate having to expand the footprint of this facility for its conversion into the
Western Wake Regional Wastewater Management Facilities.
Two alternative sites are considered for the Beaver Creek Pump Station. Each site is
located within an area bounded by Richardson Road, the American Tobacco Trail, Olive
Chapel Road, and a line running east to west 0.3 miles south of the intersection between
Olive Chapel Road and Richardson Road connecting perpendicular to the American
Tobacco Trail, Wake County, North Carolina. No aquatic impacts are proposed for either
site.
The proposed location for the outfall structure is within the Cape Fear River below
Buckhorn dam, approximately 2.0 miles south of the intersection between NC 42 and
Buckhorn Road, Chatham County, North Carolina (Latitude and Longitude in
Decidegrees: 35.54 N; 78.99 W).
The route of the transmission line begins at the West Cary Pump Station and travels west
along Green Level West Road to Wimberly Road. It then turns south and follows
Wimberly Road to Green Level Church Road. The transmission line travels a short
distance west along Green Level Church road and then continues due south cross country
(crosses under US 64) and enters the Reedy Branch Gravity Sewer which follows Reedy
Branch to a point due north of Richardson Road. It then continues due south and runs
along Richardson Road to the Beaver Creek Pump Station. The Beaver Creek Gravity
Line would run parallel to Beaver Creek, collecting raw wastewater from the western and
eastern sides of the wastewater transmission lines and also connect to the Beaver Creek
Pump Station.
The transmission line leaves the Beaver Creek Pump Station follows Richardson Road to
a point and then continues cross country to Olive Humie Road, then turns west and
follows Olive Humie Road to New-Hill Olive Chapel Road before turning south and
following New-Hill Olive Chapel Road to the Western Wake Water Reclamation Facility
site. The majority of the Utley Creek Effluent Force Main would follow exiting rights-of-
way on New Hill Road and the proposed Ballentine Road before entering the southern
edge of the Western Wake Water Reclamation Facility.
2

The effluent line leaves Western Wake Water Reclamation Facility and travels due west
along the Dixie Pipeline right-of--way to Christian Chapel Church Road. The effluent line
then follows Christian Chapel Church Road to NC 42 and then enters a powerline right-
of-way to Buckhorn Road. This line follows Buckhorn Road and ends in the Cape Fear
River.
As noted above, in general the force main lines would be installed adjacent to existing
public roads and/or existing natural gas and electrical corridors. Maps are attached which
show the applicants' preferred route for the lines, as described above. The preferred route
utilizes "Alternative A, Alternative 1 and Alternative a" whenever an alternative is
depicted. The alternative routes are also depicted on the attached maps and their impact
justification is provided later in this notice.
The gravity sewer lines are proposed for installation within FEMA regulated 100-year
floodplain rather than the road rights-of--way. One line will connect the Town of Apex to
the Beaver Creek Pump Station and will run approximately 17,000 feet and parallel
Beaver Creek. The second line, the Reedy Branch Gravity Line, will connect the West
Cary Pump Station to the Beaver Creek Pump Station and run parallel to Reedy Branch.
Existing Site Conditions
The existing site conditions for the Water Reclamation Facility is 235 acres of contiguous
land containing 10 perennial and 2 intermittent tributaries to White Oak Creek, 3.8 acres
of jurisdictional forested wetlands, and 2.1 acres of open water ponds. The forested
wetlands are comprised of tag alders (Alnus serrulata), button bush (Cephalanthus
occidentalis), sycamore (Plantanus occidentalis) and black gum (Nyssa sylvatica). The
uplands contain a majority of pine and hardwood mix tree species including loblolly
(Pinus taeda), slash (P. elliottii), and longleaf pine (P. palustris), White Oak (Quercus
alba), southern red oak (Q. alcate), post oak (Q. stella), sweetgum (Liquidambar
styraciflua), and yellow poplar (Liriodendron tulipifera). A smaller percentage of the
uplands are composed of fallow pasture grass.
The West Cary Pump Station is an existing permitted facility with no proposed changes
to the footprint.
The alternatives considered for the Beaver Creek Pump Station contain a majority of
managed herbaceous cover and mixed hardwoods and pines as described above. No
impacts are expected to aquatic resources at either site.
The majority of the force main transmission lines are expected to run along road rights-
of-way and/or utility corridors. The gravity sewer lines will be located within the FEMA
100-year floodplain.
The outfall structure will be located within the Cape Fear River below Buckhorn Dam.
This area of the River is classified as WS-IV and WS-V to protect drinking water and
industrial water supplies.
3

A U.S. Army Corps of Engineers jurisdictional determination has been completed for the
Western Wake Water Reclamation Facility site and has verified the aquatic features listed
above. However, wetland and stream features existing on the pumping stations,
transmission lines, and outfall structure sites have been estimated using National Wetland
Inventory maps and GIS programs. A complete U.S. Army Corps of Engineers
jurisdictional determination will be completed on these areas.
Applicant's Stated Purpose
The Project is being implemented by the Partners to provide wastewater service for
planned growth and development and to comply with regulatory mandates issued by the
North Carolina Environmental Management Commission (EMC) and the Department of
Environment and Natural Resources (NC DENR). The Towns of Apex, Cary and
1Vlorrisville obtain their drinking water from Jordan Lake in the Cape Fear River Basin
and discharge treated effluent to locations within the Neuse River Basin. Obtaining water
from one basin and discharging it to another river basin is known as an interbasin transfer
(IBT), and it requires a permit from the EMC. In July 2001, the EMC granted the
communities their IBT certificate but placed a requirement in it to return wastewater to
the Cape Fear River Basin by January 1, 2011. Thus, these communities must construct
wastewater transmission and disposal facilities in order to comply with the terms and
conditions of the IBT certificate issued by the EMC.
The Town of Holly Springs currently discharges wastewater into Utley Creek of the Cape
Fear River Basin. The North Carolina Division of Water Quality desires to limit the
amount of effluent discharged to Utley Creek; therefore, any increase in discharge from
this treatment facility is conditional upon the ability of Holly Springs to utilize the outfall
structure listed within this proposal by the year 2011.
Project Description
Wastewater flows from Cary, Morrisville, and the Wake County portion of Research
Triangle Park (RTP South) will enter into the system at the West Cary Pump Station.
Wastewater flow from Apex will enter the system along the alignment of the West Reedy
Branch Gravity Sewer and at the Beaver Creek Pump Station. Wastewater flow from
Holly Springs will leave the Utley Creek Wastewater Treatment Plant and enter into the
system at the Effluent Pump Station located at the Western Wake Water Reclamation
Facility. The combined effluent from the Partners will be discharged to the Cape Fear
River downstream of Buckhorn Dam. The attached figures illustrate-the general location
of the proposed Western Wake Water Reclamation Facility and supporting infrastructure.
The proposed Project will be implemented in two phases: The Phase 1 facilities, which
must be operational by January 1, 2011, will provide treatment capacity of 18 million
gallons per day (mgd) at the WRF, and a discharge capacity of 24 mgd to the Cape Fear
4

River below Buckhorn Dam. The capacity of these facilities will meet the needs of the
Project Partners unti12020. The Phase 1 facilities include the following infrastructure:
1) 31 mgd peak flow capacity at West Cary Pump Station (no increase from
existing permitted footprint anticipated)
2) 36 inch force main from West Cary Pump Station
3) 48 inch gravity line along Beaver Creek
4) 40 mgd peak flow capacity at Beaver Creek Pump Station
5) 42 inch force main from Beaver Creek Pump Station
6) 36 inch force main from the Utley Creek Wastewater Treatment Plant
7) 18 mgd maximum month capacity at Western Wake Water Reclamation
Facility
8) 48 inch effluent force main.
9) Effluent discharge structure and 60 inch diffuser in Cape Fear River
The Phase 2 facilities, which are projected to be online by July 1, 2020, will provide
treatment capacity of 30 mgd at the WRF and a discharge capacity of 38 mgd to the Cape
Fear River below Buckhorn Dam. These flows will be sufficient as shown in the current
land use plans but additional growth could occur. If wastewater discharges beyond the
38 mgd are required, the partners will request an NPDES permit modification in
accordance with rules and regulations. The capacity of these facilities will meet the needs
of the Project Partners unti12030. The Phase 2 facilities include the following
infrastructure:
1) 44 mgd peak flow capacity at West Cary Pump Station (no increase from
existing permitted footprint anticipated)
2) Paralle124 inch force main from West Cary Pump Station
3) 58 mgd peak flow capacity at Beaver Creek Pump Station
4) Paralle136 inch force main from Beaver Creek Pump Station
5) 30 mgd maximum month capacity at Western Wake Water Reclamation
Facility
6) Paralle142 inch effluent force main
The type of materials, construction methodologies, and equipment to be used for
construction will be finalized in the final design stage of this project.
Construction of the Western Wake Water Reclamation Facility would be expected to
permanently impact 0.42 acre of wetlands, 1,435 linear feet of perennial streams, and
temporarily impact 0.32 acre of wetlands, and SOO linear feet of perennial streams.
As stated above, no impacts to waters of the U.S. are expected during the
construction conversion of the West Cary Pump Station and the Beaver Creek Pump
Station.
Transmission lines, both force mains and gravity lines, will impact streams and wetlands.
As previously indicated, wetland impacts for these lines are estimated from the National

Wetland Inventory Maps and stream impacts from GIS capabilities. Total temporary
impacts from these lines are estimated at 20.3 acres of forested wetlands and 3,8001inear
feet of stream channel. Permanent impacts are expected to total 12.4 acres of forested
wetlands. Stream crossing impacts are considered temporary via the open cut method
because the stream bed and bank will be re-established after installation. Named streams
expected to be impacted via line crossings are White Oak Creek, Reedy Branch, Beaver
Creek, Little Beaver Creek, Thomas Creek, Big Branch, and Little White Oak Creek, and
White Oak Creek (separate stream). Trenchless technology is being considered for
crossings at the White Oak Creek, Beaver Creek, Little Beaver Creek, and other unnamed
perennial crossings. Since this decision has not been finalized, total impacts listed within
this notice includes these crossings as an impact.
The line from the Beaver Creek Pump Station to the Western Wake Water Reclamation
Facility includes Alternative A and Alternative 1 as indicated on the attached maps.
Alternative B and Alternative 2 were evaluated, but not chosen by the applicant as the
preferred line due to additional impacts as shown below:
a) Alternative Segment A would impact 1 perennial stream and 0.84 acres
of wetlands vs. Alternative Segment B which would impact 4 perennial streams, 2
intermittent streams, and 1.1 acres of wetlands;
b) Alternative Segment 1 would impact 1 perennial stream, 3 intermittent
streams, and 1.2 acres of wetlands vs. Alternative Segment 2 which would impact 3
perennial streams, 8 intermittent streams, and 1.1 acres of wetlands.
The line connecting the Western Wake Water Reclamation Facility to the outfall structure
includes Alternative "a" on the attached maps. Alternative "b" was evaluated, but
dismissed by the applicant due to concerns from the North Carolina Department of
Transportation.
The outfall structure is expected to temporarily impact 1.8 acres of forested wetlands and
an area within the Cape Fear River of 60 feet by 400 feet. Permanent impacts from this
structure would include 0.03 acres of wetlands and an area within the Cape Fear River of
18 feet by 400 feet. The applicant states that blasting within the stream bed may be
necessary to install the outfall structure, but further information is needed before this can
be confirmed.
To mitigate for permanent impacts to the 12.9 acres of wetland and 1,435 linear feet of
stream impacts, the applicant proposes to utilize the North Carolina Ecosystem
Enhancement Program (NCEEP) at a 2:1 ratio.
Other Required Authorizations
This notice and all applicable application materials are being forwarded to the appropriate
State agencies for review. The Corps will generally not make a final permit decision
until the North Carolina Division of Water Quality (NCDWQ) issues, denies, or waives
6

State certification required by Section 401 of the Clean Water Act (PL 92-500). The
receipt of the application and this public notice in the NCDWQ Central Office in Raleigh
serves as application to the NCDWQ for certification. A waiver will be deemed to occur
if the NCDWQ fails to act on this request for certification within sixty days of the date of
the receipt of this notice in the NCDWQ Central Office. Additional information
regarding the Clean Water Act certification may be reviewed at the NCDWQ Central
Office, 401 Oversight and Express Permits Unit, 2321 Crabtree Boulevard, Raleigh,
North Carolina 27604-2260. All persons desiring to make comments regarding the
application for certification under Section 401 of the Clean Water Act should do so in
writing delivered to the North Carolina Division of Water Quality (NCDWQ), 1650 Mail
Service Center, Raleigh, North Carolina 27699-1650 Attention: Ms Cyndi Karoly by
July 7, 2006.
In addition, written permission is required from the U.S. Army Corps of Engineers for the
proposed transmission lines to cross federal property contained within the Jordan Lake
property boundary.
Essential Fish Habitat
This notice initiates the Essential Fish Habitat (EFH) consultation requirements of the
Magnuson-Stevens Fishery Conservation and Management Act. The Corps' initial
determination is that the proposed project will not adversely impact EFH or associated
fisheries managed by the South Atlantic or Mid Atlantic Fishery Management Councils
or the National Marine Fisheries Service.
Cultural Resources
The Corps has consulted the latest published version of the National Register of Historic
Places and is not aware that any registered properties, or properties listed as being
eligible for inclusion therein are located within the project area. However, three areas
that are registered properties, or properties listed as being eligible for inclusion therein,
are located near the project Western Wake Water Reclamation Facility site. It has not yet
been determined if the eligible properties are within the permit area for this project;
however, the Corps will coordinate with the State Historical Preservation Office
regarding potential effects. Presently, unknown archeological, scientific, prehistoric, or
historical data maybe located within the project area and/or could be affected by the
proposed work.
Endangered Species
The Corps has reviewed the project area, examined all information provided by the
applicant and consulted the latest North Carolina Natural Heritage Database. Based on
available information, the Corps has determined pursuant to the Endangered Species Act
of 1973, that the proposed project will have no effect on federally listed endangered or
threatened species or their formally designated critical habitat.
7

Evaluation
The decision whether to issue a permit will be based on an evaluation of the probable
impacts, including cumulative impacts, of the proposed activity on the public interest.
That decision will reflect the national concern for both protection and utilization of
important resources. The benefit which reasonably may be expected to accrue from the
proposal must be balanced against its reasonably foreseeable detriments. All factors
which maybe relevant to the proposal will be considered including the cumulative effects
thereof; among those are conservation, economics, aesthetics, general environmental
concerns, wetlands, historic properties, fish and wildlife values, flood hazards, flood plain
values (in accordance with Executive Order 11988), land use, navigation, shoreline
erosion and accretion, recreation, water supply and conservation, water quality, energy
needs, safety, food and fiber production, mineral needs, considerations of property
ownership, and, in general, the needs and welfare of the people. For activities involving
the discharge of dredged or fill materials in waters of the United States, the evaluation of
the impact of the activity on the public interest will include application of the
Environmental Protection Agency's 404(b)(1) guidelines.
Commenting Information
The Corps of Engineers is soliciting comments from the public; Federal, State and local
agencies and officials, including any consolidate State Viewpoint or written position of
the Governor; Indian Tribes and other interested parties in order to consider and evaluate
the impacts of this proposed activity. Any comments received will be considered by the
Corps of Engineers to determine whether to issue, modify, condition or deny a permit for
this proposal. To make this decision, comments are used to assess impacts on endangered
species, historic properties, water quality, general environmental effects and the other
public interest factors listed above. Comments are used in the preparation of an
Environmental Assessment (EA) and/or an Environmental Impact Statement (EIS)
pursuant to the National Environmental Policy Act (NEPA). Comments are also used to
determine the need for a public hearing and to determine the overall public interest of the
proposed activity.
A public hearing on the Draft Environmental Impact Statement for this proposal has been
scheduled for June 15, 2006, at 7:00 pm in the Apex Town Hall at 73 Hunter Street,
Apex, North Carolina. A U.S. Army Corps of Engineers representative will be present at
this hearing to note any comments or concerns on this proiect.
In addition, any person may request, in writing, within the comment period specified in
this notice, that an additional public hearing be held to consider the application. Requests
for public hearings shall state, with particularity, the reasons for holding a public hearing.
Requests for a public hearing shall be granted, unless the District Engineer determines
that the issues raised are insubstantial or there is otherwise no valid interest to be served
by a hearing.

Written comments pertinent to the proposed work, as outlined above, will be received
by the Corps of Engineers, Wilmington District, until Spm, July 7, 2006. Comments
should be submitted to Mr. Monte Matthews, Raleigh Regulatory Field Office, 6508 Falls
of Neuse Road, Suite 120, Raleigh, North Carolina, 27615.
9

Figure 1 of 13
~~ ~ ~~ T~ ~ Western Wake Regional Wastewater Management
Facilities Service Area

- ~ ~ Figure 2 of 13
j ~~~ ~ ~ ~ ~~~~ Existing WRF Site Conditions
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~ ~ ,-, ~ ~ ~ { ~ ~ Figure 3 of 13
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® Lakes and Ponds

Figure 4 of 13
'~ ~: ~ Floodplains, Hydric Soils, and National Wetland Inventory
` ~~~ ~ ~_ .
Sites Along Preferred Transmission Routes

v ~+ ~~~ l~ Figure 5 of 13
~.~ ~a ~ Raw Wastewater Transmission Routes Evaluated
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West Cary Pump Station -
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Figure 7 of 13
~ < <7 ~ ~ ~ ,~r t~ ~~;~ ' ~' Approximate Location of Stream Crossings
From the West Cary PS to the Beaver Creek PS
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Crossing at White Oak Creek

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0 0.15 0.3 0.6
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•F Stream Crossing
Outfall Site
sa
++,s*~ PS Pump Station
Rivers and Streams
Preferred Route
+++++ Beaver Creek Gravity Sews
~- Alternate Route
Water Reclamation Facility
Waterbodies

Figure 8 4f 13
'~;~~~ ' ~ ~~ ~1~- Approximate Location of Stream Crossings ~
From Beaver Creek PS to WRF Site ~

~- Figure 9 of 13
~,~~~ ~ ~' ~~ ? ,~'~ ~ ~ Approximate Location of Stream Crossings
From the WRF to the End of Alternative Effluent Routes {

uent
Utley Creek Effluent Force Main
i ,ti i

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Digital Stream Crossing Determination
GIS Data Source: CGIA, 2004
r
n r . ~
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Miles N
0 0.15 0.3 0.6
Stream Crossing
Outfall Site
Ps Pump Station
Rivers and Streams
" ~~ Preferred Route
T~ Alternate_route
Water Reclamation Facility
0 Waterbodies

Figure 10 of 13
~~,,I ~ ~ I ~, ~ Approximate Location of Stream Crossings
From End of Alternative Effluent Routes to Outfall
a

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GIS Data Source: CGIA, 2004
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OutFall Site
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Rivers and Streams
e Preferred Route
~v Alternate_route
Water Reclamation Facility
- Waterbodies

~ 1 i ; ~, Figure 11 of 13
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T} picall~offer Dam
BARRIER
~~EI?GE WATER
r _ ~-
PART 2 , ~ ~ ,~!
~ ~ ~-BARRIER
WATER
SAND F1LL
PART 1
-SAND FILL
'SILT FENCE
PLAN
U ~-BOTTOM
PROP_ PIPE
RP OE=jLE
~QI~JSTRIJ~TIaf`I ~EQIJEi~I~:E
GONSTRUCTIC?N SHALL BE PERFQRMED CURING LOW FL{~W PERI.C?DS,
2 C4OSSiNGS SHALL BE ACCQMF'LISHED I'N A #v1ANNER THAT tNILL ~tOT PRCJl-{TBIT TH.E
STREAM FLOUT.
3 THE BAN1 OPPOSITE OF THE ~OFEER DAM SHALL _BL P.R~TECTED BY' SAr`dD BAGS.
7HE MINIMUM LENGTH OF PROTECTION REdUIRED LS .~5 `FT ~N EA.Cf~ SIDE OF THE
GOEFER DAP,1, AT A HFJGHTH OF 24" ABOVE. 4Vr1TER LEVEL THE EXTENT OE
I~ROTEUTION t`~1AY VARY AS DIREGTEQ BY THE ENGINEER ON AN iNQiVIDUAL @ASl"S.
~- INSTALL N~?iU~-ERRODIBLE BARRIER AR4Ut~{D i/2 OF CF~(~SS(NG.
5 INSTALL FILTER FABRIC. AROUND .INSIDE BARRIERR.
`:6 PLACE SAND FILL INSIDE BARRIEE~:
EXCAVATE PIPE TRENGF-1.
~ li`JSTALL PfF'E.
9 BACh:FILL WITH C41~ICR:ETE AIVD/C}R EXCAVATED MATERIAL TQ QRIt;IMAL PRpF"ILE.
1 o REMdvE SAND FILL.
7~ R£MOVE FILTER FABRIC AND BARRIER.
12 IMMEDIA iELY REVEGEl"P,TE STREAM BAND BY SEEDiR1G AND MULGHINO.
~:3: INSTALL TEIvtP4)RARY' SILT FENCE.
14. RELdC,gTE TC7 QPFOSITE SIDE OF STE~EAM AND REE'~P;T ABOVE STEP:
15 AETER WATER MAIN HAS BEEN INSTALLEQ AND COFFER: DAMS REMOVED.
CUNTRACTUF~ SHALL INSTALL GLASS I RIP RAP W1TN FILTER FABRIC AND STONE
IJNDERLAYMENT T'0 STABILIZE STREAM BED.
OFFER DAM ~TREANI ~R~SS1~G
N0 5-GALE
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