HomeMy WebLinkAboutCentralized Sewer System Feasibility Study-2001--- -
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Hobbs, Upchurch & Associates, P.A.
Consulting Engineers
2522 S. Croatan Highway, Suite 2A
P.O. Drawer 1929
Nags Head, NC 27959
"The preparation of this report was financed in
part through a grant provided by the North
Carolina Coastal Management Program through
funds provided by the Coastal Zone Management
Act of 1972, as amended, which is administered
by the Office of Ocean and Coastal Resource
Management, National Oceanic and Atmospheric
Administration."
CURRITUCK COUNTY CENTRALIZED SEWER
SYSTEM FEASIBILITY STUDY,
MAINLAND AREA OF
CURRITUCK COUNTY, NORTH CAROLINA
D�GIf�4
Board of Commissioners
S. Paul O'Neal, Chairman
Ernie Bowden
J. Owen Etheridge
Eldon L. Miller
County Manager
Bill Richardson
PREPARED BY
HOBBS, UPCHURCH & ASSOCIATES, P.A.
2522 SOUTH CROATAN HIGHWAY, SUITE 2A
NAGS HEAD, NORTH CAROLINA
JUNE 2001
CERTIFICATION
I hereby certify that this Centralized Sewer Feasibility Study prepared for Currituck County, North
Carolina, was prepared by me or under my direct supervision.
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Eric T. Weatherly, P.E. Date
Hobbs, Upchurch & Associates, P.A.
1 I. INTRODUCTION
' In the past, Currituck County had been predominantly a rural, farming
community with its population nearly unchanged for 120 years through
1970. At that time population numbers began increasing dramatically as
they continue to do so today making Currituck one of the fastest growing
counties of North Carolina.
Although the County is experiencing rapid residential growth, farming is still
a major component of the local economy. The farming community produces
corn, soybeans, wheat, and cotton as its major crops. Farms are spread
' evenly throughout the County while the residential growth is concentrated in
A few main areas. These areas include Moyock, which is populated as a
' result of spillover of residents from the rapidly growing Tidewater Virginia
area, and the Outer Banks.
' The U.S. Highway 158/168 corridor, as of 1994, carried close to 30,000
vehicles per day on weekends; however, the recent completion of the
Chesapeake Expressway is sure to increase traffic dramatically. The County
has always encouraged and promoted a rural atmosphere along this corridor
although 64% of the adjacent land is zoned for commercial use. The County
wants to continue with its rural traditions while allowing controlled
' commercial development especially in the Moyock area. A significant
slowdown to this commercial growth has been poor soil conditions which
prevent the installation of septic systems. A soil study from 1982 indicates
' that 88% of the County has soil that is unsuitable for such systems.
The primary purpose of this Centralized Sewer System Feasibility Study is
to prepare a detailed study of locations and costs to serve areas in need, and
' to provide answers to some of the County's most urgent questions regarding
sewer related issues. Specific concerns of the County that have been
' addressed as part of this report are as follows:
• Identify existing areas in critical need of sewer services
• Identify anticipated areas in need of sewer services
• Identify required infrastructure for such services
• Estimate costs for installation of infrastructure
• Estimate annual costs for operation and maintenance of a
sewer system
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• Identify possible revenue sources for funding the sewer
system
• Identify areas of the County where sewer service may not be
practical
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• Estimate connection fees for customers of the system
• Supply phasing recommendations for building a system
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' • Identify suitable land for location of a treatment facility
• Analyze issues relating to existing package treatment systems
installed throughout the County
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II. AREA TO BE INVESTIGATED
' The mainland of Currituck County, located in northeastern North Carolina, is
bordered by Camden County, Virginia, the Albemarle Sound, and the
Currituck Sound. The County Seat is located in Currituck. The major
highway is U.S. Highway 158/168 which carries traffic north and south.
Tidewater Virginia is to the north where shopping centers, cultural events,
and professional sports can be found. To the west are Currituck's Outer
Banks. This report will focus only on the mainland portion of Currituck
County which covers generally from the Virginia border to Point Harbor and
includes the townships of Moyock, Crawford, and Poplar Branch.
A. Land Use Patterns, Natural Resources, and Other
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Pertinent Information
The U.S. Highway 158/168 corridor runs the entire length of the
Currituck mainland. This corridor is comprised of a five lane major
thoroughfare with few stoplights and offers ideal tourist traffic flows
for development of appropriate commercial sites. The growth intent
for Currituck County has been to maintain its rural atmosphere while
promoting controlled commercial growth along this thoroughfare.
The largest growth area for mainland Currituck is in its northern
areas near the Virginia border.
Soils throughout Currituck County are generally used as productive
farmlands. The major crops include corn, soybeans, wheat, and
cotton. The soils range from very poorly drained to well drained
' nearly level locations. Generally, the soils in Currituck County that
are well suited to crops are well suited to urban uses. Soils play an
important factor for consideration with this study due to their limited
' suitability for septic tank system growth. Poor soils are the primary
factor in severely limiting commercial growth in some areas of the
County. A soil study from 1982 indicates that 88% of the County
' has soil that is unsuitable for septic systems.
County wide water is available on the mainland which is from a well
tsource. The water capacity is one million gallons per day while
average water consumption per day was 600,000 in 1996.
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IB. Growth Projections
' Population projections are available for Currituck County as a whole
and include the Outer Banks. The following tables illustrate 20-year
projections which were obtained from the NC Office of State
' Planning and County sources. Based on the projections, a 28.1%
growth rate can be expected over the next 10 year period for the
County.
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
18,190
18,667
19,059
19,481
19,935
20,391
20,841
21,291
21,755
22,235
2010
2011
1 2012
2013
1 2014
2015
2016
2017
2018
2019
22,696
23,090
123,491
23,924
124,388
24,849
25,301
25,750
26,214
26,696
C. Environmental Resources
1. Soils
Prime farmlands as defined by U.S. Department of
Agriculture (USDA) are soils that are best suited for food,
feed, forage, fiber, and oilseed crops. Prime farmland soils
may be used as cropland, pasture, or woodland or other
purposes. The soils have few or no rocks and are permeable
to water and air. They are not excessively erodible or
saturated with water for long periods and are not frequently
flooded during the growing season. The slope ranges mainly
from 0-6%. The soils identified as prime farmland in
Currituck County are:
AaA
Altavista fine sandy loam
BoA
Bojac loamy sand
Mu
Munden loamy sand
StA
State fine sandy loam
StB
State fine sandy loam
Exhibit A contains a general soils map for the area taken
from a survey prepared by the Soil Conservation Service.
The general soils map can be used in conjunction with the
tables also in Exhibit A which list the soil limitations and
permeability.
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Permeabilityrefers to the quality of soil that enables water to
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move downward through the profile. Permeability is
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measured as the number of inches per hour that water moves
downward through the saturated soil. Terms describing
'
permeability are:
Very slow Less than 0.06 inch
Slow 0.06 to 0.2 inch
Moderately slow 0.2 to 0.6 inch
Moderate 0.6 to 2.0 inches
Moderately rapid 2.0 to 6.0 inches
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Rapid 6.0 to 20.0 inches
Very rapid More than 20.0 inches
2. Historical Sites
There are no known archeological or historic sites that will be
impacted in the project area.
3. Threatened and Endangered Species
There are no known rare species located in the project area
and appropriate habitat is not present for most species.
4. Topography and Geology
Located in the Coastal Plains physiographic province,
Currituck County's topography is nearly level. Elevation
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ranges from near sea level to 8 feet above sea level in the
western edge of the Great Dismal Swamp. A topographical
survey map of the project area is included as Exhibit C.
D. Concentrated Growth Areas
' Growth projections for the entire County are approximately 28%
over the next 10 years. Areas in the northern portion of the County
are expected to have a higher growth rate. The areas in the central
and southern portion of the County are expected to grow at the
projected rate.
With availability of sewer, the U.S. Highway 168 corridor could be
expected to experience significant business growth. Growth would
be expected in the form of grocery, restaurant, and retail businesses.
The Moyock area is expected to see continued interest in residential
growth with or without the availability of sewer.
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III. EXISTING SEWER FACILITIES
A. Existing Sewer Descriptions
There are several existing community sewer systems in Currituck County
with four of these systems located in Moyock. These local systems are
outlined below.
1. Newtown Community Wastewater Treatment District
The Newtown Road area neighborhood and the Affordable Dentures
company building in Moyock are served by a County maintained
system. This consists of 42 individual septic systems and pump
stations feeding force mains which lead to a subsurface disposal
system. This is a 15,000 GPD system. Preliminary flow calculations
indicate this system has the possibility of expansion on a limited
basis, perhaps to residents immediately south of the project.
2. Moyock Commons Shopping Center/Currituck Commercial Center
A system serves the Food Lion, associated stores, and commercial
park known as Moyock Commons Shopping Center and Currituck
Commercial Center. This system has a 40,000 GPD extended air
mechanical treatment plant and discharges to an infiltration pond.
' Currently, this system serves only about eight stores although
additional units will be connected as they are built in the developing
Currituck Commercial Center. The possibility of expanding this
sewer system beyond build -out is unknown at this time since the
types of companies and their unique flow outputs are not yet in place.
3. Eagle Creek subdivision and Mill Run Golf Course
' Also in Moyock, a private vacuum sewer and force main
combination system serves the Eagle Creek subdivision, Mill Run
Golf Course, and new school (under construction). There is a
' 350,000 GPD lagoon system which discharges via spray irrigation on
the golf course. The system currently serves approximately 80
homes and the golf course but is sized for complete build -out of 429
homes and the school, leaving no capacity for expansion to other
' users.
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4. Carolina Village
' A private system serves Carolina Village, a mobile home park to the
west of Moyock. This is a 60,000 GPD extended aeration treatment
' plant with spray irrigation discharge.
5. Walnut Island Sanitary District
A community sewer system is in use at the Walnut Island RV Park
near Grandy. Details of the system design are not known, however,
' expansion of the system to other users is unlikely due to the isolated
location of the project. Also, in June, 2001, the system received a
"Notice of Groundwater Standards Exceedance" from NCDENR for
' Nitrate pollutants.
6. Currituck County Airport
The Currituck County Airport and jail facility in Maple are
connected to a centralized sewer system. This area is also fairly
' isolated and therefore impractical for expansion to neighboring
homes. Soils in this region do not present problems.
7. Food Lion Shopping Center, Grandy
This private system consists of a grease trap/septic tank system with
LPP subsurface discharge treatment. It is sized only for the shopping
center. Conversations with the state indicate the system is having
trouble because of the food service facilities in Food Lion and is
under "Significant Failure Risk".
' 8. Other Systems
Many other smaller systems exist throughout the County serving
small pockets of homes and businesses. These systems are not
suitable for serving an expanded area due to their rural locations.
' B. Issues Relating to Package Treatment Systems
Typical types of packages plants are trickling filter, oxidation ditch,
' and sequencing latch reactors. These are typically referred to as
mechanical plants. Other forms of treatment include lagoons or
constructed wetlands. For example, the treatment at the Food Lion
grocery store in Moyock is a mechanical plant and the treatment at
Eagle Creek Subdivision is a lagoon. Most mechanical plants have
aeration, clarification, and sludge return. For irrigation systems such
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as Eagle Creek, a filter is used following the mechanical or lagoon
treatment.
' Typically the term "package plant" refers to a steel construction
mechanical plant. Problems are associated with rusting and the need
for continual painting. Drive belts and motors also require routine
maintenance. Mechanical package treatment plants can be expected to
give approximately twenty years of service.
In assessing treatment supply, compliance with existing state and
local regulations should be a priority. For example, discussions with
the DENR; On -site Wastewater Section indicated problems with the
system for the Grandy Food Lion due to the food services facility for
which the system was not designed. Supervising the setting, design,
' construction, and installation of new systems are also important
factors. Site evaluations, for example, should be performed by a
sanitarian, engineer, soil scientist or other qualified professional
familiar with wastewater treatment and with soils, drainage patterns
and topography. Proper construction and installation are important,
however the most common reason systems fail is a lack of adequate
' ongoing maintenance.
Management programs can be administered and regulated by special
utilities formed especially for this purpose or by public agencies or
other organizations that already exist. Types of management entities
include sanitary, water and sewer districts, public utility districts and
multipurpose special districts, private corporations, private nonprofit
organizations (such as homeowners associations) and other public or
' private organizations. The following General Statutes dictate
regulation and formation issues:
' GS 130A-48 Sanitary Districts
GS 162A-31 Metropolitan Water Districts
GS 162A-64 Metropolitan Sewer Districts
' GS 162A-86 County Water and Sewer District
GS 162A-3 Water and Sewer Authorities
' Management programs can be formed by the county such as
Newtown Community Wastewater Treatment District or by private
groups or homeowners organizations such as the Walnut Creek
' Sanitary District. The Local Government Commission financially
regulates governmental entities. The county is responsible for the
system financially as well as operation and maintenance issues. Thus
giving the county control of issues previously discussed such as
engineering and construction inspection and adequate ongoing
maintenance. The county may or may not wish to get in the sewer
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business. The county could set up a district and as developers build
systems, they could be funneled over to the county for ownership.
' Systems can be owned and operated effectively by other than
governmental utilities. These systems such as subdivisions and
shopping centers can be public or private. Public management
programs or public utilities charge monthly issue bills and are
financially regulated by the Utilities Commission. Private systems
' would not charge sewer bills but could cover the cost in yearly dues
through a homeowners association, partnership or corporation.
' The Utilities Commission regulates the financial issues of the public
systems. A developer can set up the management entity or sell the
system to a utility company such as Carolina Water Service. The
' Utilities Commission requires the developer to post a bond. The
minimum bond amount is $10,000. The Utility Commission dictates
the amount of the bond based on the reliability of the system and with
input from the permitting agency. Past history is also used in setting
the bond amount.
' Sewer regulatory agencies are the Division of Water Quality (DWQ),
Department of Environmental Health (DEH), and the local Health
Departments. DWQ regulates all surface systems such as surface
water discharges, spray irrigation, and infiltration ponds. DEH and the
local Health Departments regulate all subsurface systems such as
conventional drain fields and LPP systems. The county does not have
' any control over surface systems not owned and maintained by the
county such as Eagle Creek System. DWQ inspects these systems and
controls compliance issues. If sewer bills are charged, the Utilities
' Commission would also have control.
Any subsurface systems such as the Food Lion in Grandy or the
' Walnut Creek System is regulated by DEH and the county. In this
case, DEH and the county have regulation authority during design,
construction, and operation. Therefore, the county has much more
icontrol over subsurface systems then surface systems.
An interesting example of package systems in developments is
Carteret County. They have over fifty package plants and over 100
sand filter systems in their county. They have different disposals such
' as subsurface, surface, and surface water. The county has to review
plans and construction, inspect and issue compliance statements for
all of the subsurface systems. DWQ oversees all surface systems. The
' county has a staff of two people to monitor the subsurface systems.
The county finds this best fits their needs and has not chosen to get in
the sewer business.
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IV. NEED FOR SEWER
A. Regional Concerns
' According to meetings with the Health Department on 6/15/01 and
6/19/01, it was learned that, in general, soils in the northern portion
of the County have very limited capacity and will not support septic
systems while soils in the southern portion of the County are better
for septic drain field absorption.
The southern portion of the County, known as the Poplar Branch
Township consists of such areas as Point Harbor, Grandy, and
Coinjock. These areas have less reported incidences of septic
' problems. The soils are generally well drained to moderately well
drained Conetoe-Dragston-Munden and are suited to good septic
system performance. For this reason, and due to the great expense in
' serving areas of low density housing, a centralized sewer system was
not considered feasible for the southern half of the County.
' The mid portion of the County is known as the Crawford Township.
The Crawford Township, which includes Barco, Maple, Currituck,
and Shawboro, has had scattered reports of septic failures mostly in
the Shawboro and Sligo areas. These areas are in poorly drained
Roanoke-Tomotley soils. Shawboro and Sligo were considered and
then ruled out as economical candidates for a centralized sewer
' system due to their lack of population density. Other candidates
include the airport/industrial park area in Maple. The Health
Department has informed us that soils in the area are suitable for
septic systems allowing systems to be installed with growth.
The northern portion of the County is known as the Moyock
' Township and has had the greatest number of septic system failures
according to the Health Department. A large portion of this area is
comprised of Roanoke-Tomotley soils which provide poor drainage
' for septic systems.
Moyock is in the most urgent need of a centralized sewer system due
to these poor soils and high water table and will be the focus of the
remainder of this report.
The residents and existing businesses in Moyock are continually
faced with repair of their septic systems or requirements of
' monitoring programs by the Health Department. The areas
surrounding U.S. Highway 168 are developed residential areas with
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individual septic systems. Many of these failing septic systems pose
a health threat to surrounding waterways.
B. Growth
Section II, Part B discussed the population projections for Currituck
County as a whole. From this section, it can be seen that the growth
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rate for Moyock's residential areas is expected to be 28%+ over the
next 10 years. Growth is also expected along the commercial
corridor of U.S. Highway 168 as a result of the availability of a
community sewer system. In addition, existing businesses are
anticipated to have the ability to expand. Specifically, the Citgo on
the corner of Camellia Dr. and U.S. Highway 168, and the gun/pawn
'
shop along U.S. Highway 168 are interested in adding kitchen
facilities but are prohibited due to septic issues. Also, the new
business park under construction east of U.S. Highway 168 behind
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Poyner's Oil is experiencing very slow growth due to the need for
expensive septic systems. According to the owner, only 3 or 4 lots of
the 19 are buildable without a central sewer system. Potential buyers
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or tenants of the vacant restaurant building near the intersection of
Lazy Comer Rd. and U.S. Highway 168 have been discouraged by
septic problems. The owner of the building has spent $100,000 in
septic system improvements but is still dissatisfied with the results
and is interested in connecting to a sewer system. Southland also
experiences problems with their on -site sewer system.
Without a suitable sewer system, commercial growth is very limited
in Moyock. Prospective businesses such as motels, grocery stores,
and restaurants cannot locate here because of this lack of
infrastructure. According to the Albemarle Regional Health Services
'
department, a growing number of desirable businesses have been
denied building permits due to concerns over septic systems along
the U.S. Highway 168 corridor. Soils along this corridor will not
support even small residential septic systems much less a larger
'
commercial system.
' In general, residential and commercial growth in Moyock is limited
by poor soils correctable only with a sewer system.
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I V. ALTERNATIVES CONSIDERED FOR
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SEWER IN MOYOCK
This section will discuss the different types of wastewater collection and
treatment facilities. Site selection for the treatment facilities is also
discussed. Several sewage treatment facilities are presented for this project.
Surface water discharge, land application, and discharge to existing facilities
categorize these. Types of land application systems considered are lagoon
systems with subsurface disposal and lagoon systems with spray irrigation
systems onto agricultural crops or forested areas.
Also discussed in this section are various system layout scenarios which are
utilized to compare different system configurations. These comparisons are
made in order to find the most cost-effective sewer layout to serve the
greatest number of users with the greatest need.
A. General Collection and Treatment Description
1 1. Collection systems: Design data for pressure, gravity, and a
combination of the two is presented in this section.
' a. Gravity Sewer System
Gravity sewer layout and sizing is based on State
' minimum sizing of 8" diameter PVC pipe at a
minimum grade of 0.40% with manholes at
maximum spacing of 400 feet.
' Topographical conditions of the study area present
the most difficulty in the gravity sewer system layout.
' Nearly level site conditions do not provide relief from
the slope of the gravity mains. Numerous pump
stations are needed to lift the sewer to the next section
' as the gravity mains get too deep.
The gravity sewer collection system is more
' applicable to the commercial and industrial type
growth as compared to the pressure sewer system.
Sizes of pump stations and force mains at each
business would become quite large and less
economical to install and operate. The use of gravity
' sewer mains along U.S. Highway 168 will be
analyzed. The gravity collection system will allow
for future business growth and ease of connection for
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' new users. A pump station will be installed when the
gravity main reaches a depth greater than 12 feet.
b. Pressure Sewer Collection System
This section will discuss pressure sewer systems and
' its applicability to the Moyock residential area.
In a pressure sewer system, sewage is pumped
' through small diameter pipes buried in shallow
trenches that follow the land contour. The system
consists of a pump package system, service lines, and
' force mains.
A pump station is installed at each residence or can be
' shared by two residences. There are two primary
types of pumps used, the grinder pump and effluent
pump. In the grinder pump station, the solids are
ground into a slurry and pumped to the discharge
point. An effluent pump is used in the STEP (septic
tank effluent pump) system, where the pump is
' installed in the liquid end of the septic tank. The
settleable solids and most of the grease accumulation
remain in the septic tank.
' This system was designed using the STEP, or grinder
pump station system. Effluent pumps come in one
' size for most residences and various sizes for
commercial applications. For the force main design,
each run of force main was sized based on the
' maximum number of pumps that can be expected to
run simultaneously. The following figures illustrate
typical installations of pump systems. The pump
' station typically comes assembled in a 4' diameter
fiberglass basin.
' Service lines from the pump basin to the street are
usually 1-1/4" Schedule 40 PVC. Force mains are
usually SDR 21 PVC pipe in sizes from 1-1/2" to 611
.
Sewage is pumped through the force mains to a
discharge point consisting of the treatment facility or a
' gravity manhole.
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TYPICAL RESIDENTIAL GRINDER PUMP STATION
a
GRINDER
PUMP UNIT
TYPICAL RESIDENTIAL GRINDER PUMP INSTALLATION '
' Pressure sewer systems offer many advantages and
disadvantages as compared to gravity systems. The
' obvious advantage of pressure sewer systems is the
ease of installation. Pipe alignment can follow that of
the road shoulder, narrow and shallow trenches,
' minimum equipment and labor, road and bridge
crossings, elimination of large pump stations and
manholes and no infiltration or inflow are all
' advantages of the pressure sewer systems.
Disadvantages consist of mechanical equipment,
power outages and power costs, aesthetics of the
' system, easements, and unfamiliarity with pressure
sewers.
The residential pump station can be viewed as another
home appliance and subject to the same ongoing
service requirements as a home furnace, refrigerator,
' hot water heater, etc. With the amount of equipment
involved, it is important to have service capability to
handle it.
' The national average for power outages is two hours.
The homeowner should refrain from washing dishes
and taking showers during this period. When power
is restored, all pumps will attempt to come on creating
a high head, low flow condition. The pumps are
' equipped with thermal overload protection or
designed to remain in operation for some time at no
flow. Pumps nearest to the discharge point will empty
' first and systematically shut off until the system
furthest from the discharge point is empty.
' After installation, the pump station will be buried
flush with the ground and difficult to notice from the
road. Control panels can be located on the side of the
house in an inconspicuous location. The residents
will have to grant permission to have access to the
pump station. Maintenance of the system is usually
provided by the sewer system owner while electric
bills for the residential pump stations would be paid
' for by the homeowner.
On -off control of the pump stations is accomplished
' through a float system and control panel. The control
panel will contain an on -off switch, audible horn and
alarm light. In the case of a pump malfunction, the
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' alarm will signal the homeowner to call the
maintenance department for repairs.
' The homeowner could supply power for the pump. In
some instances, negotiations have been held with the
local power company to supply a service pole at each
installation and charge the customer a base rate
similar to that of a yard light. In the other situation,
the control panel and pump can be wired to the
homeowner's home circuit. The system can be
operated from a 120-volt power supply.
Design flow of the system is based on the average
residential usage of 4,648 gallons per month (See
' Section V.D. for an explanation of how this rate was
determined). Pump station cycle time is based on
pumping rate and basin size. The force mains are
' designed to maintain a minimum 2-feet/second
minimum velocity based on the number of pumps
operating simultaneously. This information is
' obtained from pump curves and research data from
pump manufacturers. For this type of system, the
force mains are designed based on the number of
' pumps running simultaneously at 20 gpm each.
The most economical type of collection system is a
pressure sewer system; however, this type of system
should be used primarily for residential areas. A
gravity type system is more suited to a commercial
'
corridor area due to its capacity for growth allowance
and low maintenance requirements. The collection
system illustrated in the schematic layout map
'
provides a gravity sewer system along the U.S.
Highway 168 corridor from the North
Carolina/Virginia state line to 500' south of Puddin'
'
Ridge Road and a pressure sewer system in all
residential and remaining areas.
2. Treatment Facilities:
a. General
' Treatment facilities were analyzed using lagoon
systems, spray irrigation, subsurface land application,
mechanical treatment facilities with surface water
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' discharge, oxidation ditches, and wetlands. Each of
these alternatives is discussed in the following
' sections.
The surface water discharge option is not allowed in
' Currituck County and therefore no further studies
were conducted on this option. Numerous areas were
investigated for a land application system. The
' primary area that had an adequate amount of suitable
soils for a land application system was west of U.S.
Highway 168 to the north side of South Mills Road.
' This tract borders the sewage drain field from the
Newtown Road subdivision. The selected site is
suited for a land application system due to its
' proximity to town and it's simultaneous remoteness
and lower land cost.
'
A mechanical treatment facility will consist of a
package type treatment facility using extended
'
aeration and tertiary treatment. Primary treatment
will consist of an equalization chamber, aeration
chamber, a clarifier, and sludge holding chamber.
'
Basic designs consist of a donut configuration with
the extended aeration tank and digestor around the
perimeter and the clarifier in the center. Tertiary
treatment will consist of duplex filter beds, clearwell,
and wastewater chamber. Disinfection will consist of
chlorination/dechlorination.
'
Constructed wetlands were considered options for
treatment to surface discharge. Constructed wetlands
'
were ruled out due to the discharge limits and lack of
siting availability.
'
b. Land Application
'
Pretreatment will be required prior to land
application. In small communities, lagoons are
usually the most practical forms of preapplication
treatment and storage. Generally, lagoons are
'
constructed with one to three cells. Typical
applications are with two cells. The first cell is
designed as a facultative cell with a BOD loading of
'
about 100-pounds/acre day. The water level in this
cell is usually constant and can be controlled with an
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' adjustable overflow weir. The final cell can be used
for storage and flow equalization.
' Land application methods were analyzed using
subsurface and surface application methods. It was
' quickly realized that subsurface application through
the use of nitrification fields was not feasible due to
the length of drain tiles required. With an average
' loading rate of 0.3 gallons/day/square foot, a total of
approximately 250,000 linear feet of 4" drain tile
would be required for a 200,000 gallon per day
design flow at an estimated construction cost for the
nitrification field alone of $1,800,000. Spray
irrigation systems are in greater detail, in the
I
following sections.
There are no existing sewer treatment facilities in the
' area that are sized to accept additional flows for a
Moyock sewer system. The County system, serving
the Newtown Road neighborhood, and the systems at
' Moyock Commons Shopping Center, and Eagle
Creek subdivision were all analyzed and ruled out.
' B. Service Area
The following map illustrates the project service area for the Moyock
' Township sewer system. The project area includes the majority of
the U.S. Highway 168 commercial district, the existing Moyock
Elementary school, and most neighborhoods not already served by a
' community sewer. The new school, currently under construction,
will be served by the Eagle Creek Subdivision treatment facility.
' The Newtown area and Affordable Dentures business are served by
an isolated system. The Food Lion, adjacent businesses, and office
park, currently being developed, are served by a private system. Due
' to a sharp decline in population densities outside the described
service area, other neighborhoods were deemed not feasible for a
central sewer system.
19
IC. House Counts
' A visual survey was performed of the area along U.S. Highway 168
as well as nearby areas to the east and west in Moyock. The area can
offer a.sufficient number of users for a sewer system although some
' areas are situated a large enough distance from town to present a cost
problem. The house count encompassed nearly all of Moyock as far
south as the Ranchland subdivision north to the Virginia line, and
' from Tull's Bay Colony on the east side to the Duck Ridge
subdivision in the west.
I
Attached in Exhibit B is a map illustrating actual house counts for the
most populated areas in and around Moyock.
' D. System Demand
' System demand was determined using flow data supplied by the
Currituck County Water Department. It was assumed that 100% of
the water sold would become wastewater and would need to be
treated. Actual flow data from Cycle 1, which is the name of the
zone serving the majority of Moyock, was used. The period used for
our analysis was from the past year ending on June 19 , 2001.
' A residential customer uses an average of 4,648 gallons per month.
Average use rate for a small business with less than five employees
' and no food preparation facilities is approximately 2,500 gallons per
month. For a medium sized business of five or more employees
and/or food preparation facilities, a rate of 7,500 gallons per month
' was used. For large entities, such as Southland and Moyock
Elementary School, actual flow rates were used which were roughly
100,000 gallons per month.
E. Layout Map
' The maps in Exhibit D present the entire collection system layout
serving the maximum number of connections. Key service areas
presented in the layout map are as follows:
' ■ U.S. Highway 168 commercial corridor
■ Residential areas east of Moyock along Tull's Creek Rd
' Residential areas west of Moyock
■ Ranchland subdivision south of Moyock
■ Moyock Elementary
21
' F. Land Requirements
' 1. Land Application
The following land requirement estimates are based on
' complete system build -out serving almost all of the Moyock
Township, or the Entire Service Area.
' Typical BOD5 for medium strength wastewater is 220 mg/l.
Using a flow rate of 240,000 gallons per day, BOD strength
of 220 mg/l, and a BOD loading rate for the lagoon of 100
' pounds/acre day, the required size of the lagoon system is 12
acres. Additional storage is required for periods when no
application can be made to the spray fields. For this system,
' 60 days of storage is required as well as area for equalization
of flow or an additional 12 million gallons. Assuming a
depth of five feet, the required lagoon area would be 12 acres
' for storage and equalization and a total lagoon area for
treatment and storage of 23 acres.
1 Site selection for the spray irrigation system is based on State
and Conetoe soil types from the table in the Currituck soil
survey book and attached in Exhibit A. The average
' permeability rate for the State series soil is 3 inchesihour and
for Conetoe, 13 inches/hour. This equates to a hydraulic
loading rate of 1 `/2 inches/week. Assumptions made include
' 90 days per year in which irrigation cannot occur, irrigation
taking place 8 hours/day, and applying for 3 `/z days per week.
A hydraulic loading rate of 1'/2 inches per week therefore
' equates to 55 acres of wetted area for a spray irrigation
system. Including required buffers, the total land area for the
' irrigation system is 105 acres.
The following figure illustrates the site location plan based in
' the State and Conetoe soil series. The location is also
illustrated in Exhibit A. Site selection was based not only on
soils, but also input from the Health Dept., proximity to
residential areas, and proximity to the service area. No
contact was made with the property owner.
' Grasses are the primary crops that can be grown on
wastewater spray fields. The site can be planted with trees
through negotiations with the local wood mill in Martin
t County. It may also be possible to negotiate with farmers to
grow non -edible crops on the spray fields.
MOYOCK
PROPERTY
LINE
I EXIS41E
NEWT
DRAIN
I
'
55 ACRES I
WETTED AREA
' W/ 400' I
BUFFER
I
I
1
7
523 ACRE I
LAGOON
SOVrN�M��CS Ro
AD
Jill Hobbs, Upchurch & Assoct9m, PAA7ns flgfipineera
ON SOUTHERN PINES, NC — MYRTLE BEACH, SC — BEAUFORT. SC
N4G5 HEAD, NC — RALEIGH. NC — CHARLOTTE. NC
2522 S. Cmoton Hwy., Suite 2A, Nags Head, North Carolina 27959
Phase: (252) 441-3913 — Fax: (252) 441-2100
CURRITUCK COUNTY CENTRALIZED
SEWER FEASIBILITY STUDY
TREATMENT SYSTEM LOCATION MAP
FOR ENTIRE SERVICE AREA
N TS
' Total land requirements for this alternative would therefore
be 105 acres for the irrigation, 23 acres for the lagoon system,
' and additional area for equipment storage for a total
estimated acreage of 130 acres.
' 2. Collection System
There will be four major pump stations within the collection
' systems. These pump stations will be located adjacent to the
highway rights -of -way and require sites of approximately
50' X 50'. The pipelines for the collection system will
' otherwise be located within NCDOT rights -of -way.
G. Design Scenarios
' The selected configuration consists of a lagoon and spray irrigation
treatment facility located off South Mills Road just west of town.
The collection system would consist of a gravity system with a series
of pump stations located along the commercial corridor of U.S.
Highway 168 and a pressure sewer system of various sizes serving
the outlying residential areas.
A computer program was developed which allows various sewer
' system layouts to be analyzed. Seven different sewer system layouts
were developed in an effort to provide Currituck County with the
most cost effective system to benefit the maximum number of
' customers. Each layout is called a scenario and is outlined in detail
in Exhibit E of this report.
' Each unique scenario is comprised of small subsystems serving
different neighborhoods and pockets of population in differing
combinations. A cost was developed for the wastewater treatment
' plant in dollars/gallon and an operation and maintenance cost in
dollars/gallon. With this, a total cost and operation and maintenance
charge could be analyzed for each service area option. Finally, the
program compiled the revenues and expenditures for each scenario
and generated typical sewer rates for residential, small business,
' medium business, and large businesses so that a side -by -side bottom -
line cost comparison can be made. In each scenario it was assumed
that capital costs would be paid for with a 6% interest, 20 year loan
' debt service. Projected sewer rates were presented based on an
assumed $20/month base charge with a calculated cost per 1000
gallons which would pay for debt service and O & M expenses.
1
24
' eta,
The scenarios are numbered as follows and encompass the named
areas:
1. Entire service area
2. Entire service area excluding Tull's Bay Colony and Ranchland
3. Entire service area excluding Tull's Bay Colony, Ranchland, and Duck
Ridge
4. Entire service area excluding Tull's Bay Colony, Ranchland, Duck Ridge
(Pump Station and force main to Southland)
5. Highway 168, Sawyertown Rd, Tull's Bay Colony, and Ranchland
6. Highway 168 (Excluding north of Baxter's Lane), Sawyertown Rd,
Tull's Bay Colony, and Ranchland
7. Highway 168, Sawyertown Rd, Tull's Bay Colony, and Ranchland (No
gravity system)
Scenario
number
Total no
of users
Total
Cost
Yearly
Operating
Cost
Projected sewer bills
Residential
Small
Business
Medium
Business
Large
business
1
996
$11,890,424
$1,199,673
$97.73
$61.81
$145.43
$1,692.39
2
471
$6,523,680
$678,003
$113.40
$70.24
$170.71
$2,029.43
3
388
$5,526,696
$582,270
$116.95
$72.14
$176.43
$2,105.75
4
360
$4,806,968
$517,066
$113.47
$70.28
$170.83
$2,031.01
5
641
$8,246,074
$813,464
$103.79
$65.07
$155.21
$1,822.78
6
620
$7,730,088
$765,790
$103.47
$64.90
$154.69
$1,815.90
7
1 641
$8,012,396
1 $793,088
$101.20
$63.68
$151.03
$1,767.09
As can be seen from the above table, all scenarios yield a similar
sewer bill. The table illustrates that adding the Ranchland
Subdivision and Tull's Bay Colony do not have a significant effect on
the monthly sewer bills. These are areas which have been identified
by the Health Department as being in need of sewer service. It is
interesting to note that Scenario 1 for the entire service area, yields
the least expensive monthly bill due to the number of customers
sharing the expenses. Also illustrated by the table is the conclusion
that all sewer system construction costs are very high. Without
considerable grant monies, County contributions, or hook up fees,
none of the scenarios presented are feasible.
25
VI. PROPOSED PROJECT
(Recommended Alternative)
Based on the information learned from the seven scenarios as discussed
above and presented in Exhibit E, a recommended alternative was derived.
This recommendation is one that allows unlimited commercial growth along
the U.S. Highway 168 corridor, serves the greatest number of customers in
need, and is overall the most economical. This recommended alternative is
capable of serving new commercial customers anywhere along its length and
is expandable at any time to reach other areas in the future.
This recommendation is considered to be the base system upon which phases
can be added. Phasing options are open for the County to decide upon who
has the greatest need. At this time, a logical Phase II would be to extend to
the Sawyertown Road residents, an identified problem area. A good
candidate for Phase III would be to extend the force main from Phase II east
along Tull's Creek Rd to Tull's Bay Colony. This neighborhood has also
been identified by the Health Department as a problem area. Finally Phase
IV would add the Ranchland subdivision , also an area in need of suitable
sewer. These four phases make up Scenario 5 in Exhibit E. Scenario 5 had
$103.79/month residential sewer bills based on a 20 year loan with a
construction cost of $8,247,000. It is anticipated that the hook up fees and
cash contributions would be much too high to make this scenario feasible if
all phases were built together.
The recommendation is to serve only the commercial and residential
buildings along U.S. Highway 168 as an initial phase in an attempt to
stimulate business growth. The remainder of this report will focus on this
recommendation. In conjunction with serving U.S. Highway 168, several
residences will also be served along a short portion of South Mills Rd, the
route along which the effluent is pumped to the lagoon
A. Project Design
Treatment
A lagoon and spray type facility, if built to treat the effluent
of the entire service area, would consist of a 240,000 gallon
per day facility using a lined lagoon. The recommended
alternative serving only the commercial corridor on U.S.
Highway 168 requires a 25,000 gallon per day facility which
could be expandable to meet future phases. Primary
treatment consists of simply pumping effluent into the lagoon
26
where pretreatment occurs. Basic design consists of a series
of irrigation piping and related pumps and controls which
direct effluent from the lagoon to spray nozzles which irrigate
farmland.
2. Lift Stations and Pumping Stations
There are four major pump stations located in the project.
' Each of these will be sized to handle the requirements of a
total system build -out so future expansion will be easily
accommodated. All of the pump stations serve the gravity
' sewer system along U.S. Highway 168. It is anticipated that
each pump station will be a cylindrical, below grade wet well
with duplex submersible pumps. The typical wet well for the
' U.S. Highway 168 gravity section will be 8 feet in diameter
and approximately 15 feet deep. Each pump station will
contain a duplex pump system with telemetry and portable
' generator hookup. Each site is anticipated to require a 50' X
50' lot and be surrounded by fencing. Each pump and wet
well is designed with a capacity to provide 4-8 cycles per
hour. This requires a balance between inflow, outflow, and
effective volume of the wet well.
' 3. Collection System Layout
The collection system consists of a combination of gravity
' sewer and pressure sewer systems. Gravity sewer will be
used to serve the U.S. Highway 168 corridor. This system
will provide ease of maintenance and connection by
businesses along the corridor. The residential area along
South Mills Rd. will be served by an effluent pump station
located at each residence with connection to a force main
installed along the NCDOT right of way. The layout of the
overall system is shown in Exhibit D.
B. Cost Estimates
' A detailed cost estimate for the sewer system to serve U.S. Highway
168 is contained in a summary table at the end of this section. As
previously discussed, the collection system cost estimate is broken
down into sections for purposes of analyzing the optimum service
area for the best sewer rate. The costs of the treatment area were
' derived based on flow amounts. The amount of flow dictated the
lagoon size and spray field size in acres. The determined acreage
was then multiplied by known factors representing the typical costs
27
' aaror
E
of improving the land, installing piping, pumps, valves, and planting
crops in the spray field. This method allowed the analysis of rates for
' different scenarios and different sized wastewater treatment plants. If
the entire service area were served, a total of 130 acres would be
required. The recommended alternative requires only 38 acres
' although the remaining 92 acres should be reserved for future system
build -out. The following is a summary of the costs for the
recommended alternative.
Ji
Collection system $1,159,500
Wastewater treatment plant $ 764,280
Total construction cost: $1,923,780
Engineering design (12%) $ 230,853
' Inspection (8%) $ 153,902
Land $ 153,168
Contingencies (10%) $ 192,378
' Total $2,654,081
C. Annual Operating Budget
1. Sources of Funds
' Primary sources of funds considered for this project are
Clean Water State Revolving Fund (SRF), United States
' Department of Agriculture — Rural Development (USDA-
RD), and the North Carolina Rural Economic Development
Center, Inc. (Rural Center).
' USDA-RD provides 40 year loans at a present rate of
approximately 6%. Grants are offered if the median
household income is below $26,378/year. The Moyock
Township median household income is $30,511/year making
the project not eligible for grants but eligible for loans.
Applications can be made at any time.
EPA manages individual SRF loans for wastewater and water
projects. These programs provide low interest loans with
repayment periods of up to 20 years, present rates are
' approximately 3%. Applicants can have their projects
included on the states Priority Funding List by submitting a
written request which includes a general project description,
Oestimated project cost, and schedule on or before March 31Sc
' of each year. Projects are rated based upon the severity of the
problem.
28
8B D/
r
' The N.C. Rural Economic Development Center has rants
p g
' available which may be used for this type of project. The
grants are available for projects which meet critical health
needs or creation of jobs. Receipt of the funds can be
' justified through the failing septic tank systems as wells as
the possibility of creation of jobs from the businesses along
U.S. Highway 168. Grants are available up to $400,000.
' Applications are due in August and February of each year.
Other sources of funds include the Department of Commerce
' (DOC) and Economic Development Administration (EDA).
DOC offers grants but only to low income areas. EDA will
provide grants of up to $15,000 for each job that is created as
' a result of a new business. The grant can be used to pay for
infrastructure improvements.
' This report will analyze the project based on SRF, USDA-
RD and Rural Center funds. The report also determines the
amount of commitment the County would have to provide or
the amount users would have to contribute (hook-up fees) to
get the average residential sewer bills in the $30 to
$35/month range.
2. Expenditures - Operation and Maintenance
The following summarizes the operation and maintenance
budget for the facility.
a. Salaries: additional personnel @ $30,000/yr
b. Wastewater treatment plant operation and
maintenance, electricity, chemicals, repairs, and
supplies: $1.20/1,000 gallons
C. Residential pump station:
Pump replacement and miscellaneous repairs
$500/pump station/10 years
3. Projected Sewer Rates
The recommended alternative data yielded a projected sewer
rate for the following categories:
■ Single family residences
■ Small businesses (under five employees and no food
service)
29
■ Medium businesses (over five employees and/or food
service)
■ Large businesses (Example: Southland, a combined
' restaurant, gas station, gift shop)
' The service area of the recommended alternative was
analyzed as follows:
' • Assumed 100% mandatory participation
• Assumed base sewer rates of $20.00/month
' In each analysis of the different sources of funds, it was
determined sewer bills of $32/month would only cover the
O & M costs. Any debt service added to this would make the
' sewer bills larger. Therefore, the County would end up
paying for the capital costs and the sewer rates will pay for
the operating costs. The total amount of funds needed are
' $2,254,083 excluding consideration of a $400,000 grant from
the Rural Center. If the creation of jobs can be shown,
additional grant money may be obtained from the EDA. If
the system is paid for through hook-up fees, the amounts
would be $25,000 per hookup. It may be possible for the
County to pay the construction cost and recoup the cost as
users sign up thereby not requiring mandatory hook-up.
According to the state, it is usual to find sewer hook-up fees
of $10,000 in large metropolitan areas such as Raleigh, NC.
Since Moyock area businesses and residents would not likely
pay more, it was calculated that after 225 customers were
' connected, the County would have recouped all of its sewer
system expenditures. It is believed that the availability of
sewer in the commercial corridor would attract large numbers
' of new customers to share the expenses.
�g1
30
RECOMMENDED SEWER SYSTEM SUMMARY
U.S. HIGHWAY 168 COMMERCIAL CORRIDOR
I. COLLECTION SYSTEM FLOW SUMMARY
SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
' 13 small businesses @ 2,500 gal/mo=
32,500
gal/mo
1,625
gpd
6 medium businesses @ 7,500 gal/mo=
45,000
gal/mo
2,250
gpd
1 residence @ 4,648 gal/mo =
4,648
gal/mo
155
gpd
■ Total
82,148
gal/mo
4,030
gpd
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE ALONG HWY 168
10 small businesses @ 2,500 gal/mo=
25,000
gal/mo
1,250
gpd
4 medium businesses @ 7,500 gal/mo=
30,000
gal/mo
1,500
gpd
7 residences @ 4,648 gal/mo=
32,536
gal/mo
1,085
gpd
Total
87,636
gal/mo
3,835
gpd
SECTION FROM SOUTH OF VA LINE TO SOUTH OF ABC STORE ALONG HWY 168
2 small businesses @ 2,500 gal/mo=
5,000
gal/mo
250
gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
Southland Restaurant, shops=
103,967
gal/mo
. 5,198
gpd
7 residences @ 4,648 gal/mo=
32,536
gal/mo
1,085
gpd
Total
156,603
gal/mo
7,283
gpd
SECTION FROM SOUTH OF ABC STORE TO NORTH OF BAXTER'S LANE ALONG HWY 168
4 small businesses @ 2,500 gal/mo=
10,000
gal/mo
500 gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750 gpd
1 residence @ 4,648 gal/mo=
4,648
gal/mo
155 gpd
Total
29,648
gal/mo
1,405 gpd
SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN' RIDGE ROAD
6 small businesses @ 2,500 gal/mo=
15,000
gal/mo
750
gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
6 residences @ 4,648 gal/mo=
27,888
gal/mo
930
gpd
Total
57,888
gal/mo
2,430
gpd
SOUTH MILLS RD AT HWY 168 TO NEW LAGOON
15 residences @ 4,648 gal/mo=
69,720
gal/mo
2,324
gpd
Total
69,720
gal/mo
2,324
gpd
Total Flow
483,443
gal/mo
21,306
gpd
Total Number Users
91
CU0102
08/08/2001 1
11. COLLECTION SYSTEM COST ESTIMATE
SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
Main lift station at South Mills Rd
1
LS @
125,000 =
$
125,000.00
8" Gravity sewer (0 - 6')
500
LF @
30 =
$
15,000.00
8" Gravity Sewer (6'- 8')
500
LF @
32 =
$
16,000.00
8" Gravity Sewer (8'- 10')
500
LF @
34 =
$
17,000.00
8" Gravity Sewer (10'- 12')
100
LF @
36 =
$
3,600.00
Manhole with ring and cover (0 - 6')
2
EA @
1,800 =
$
3,600.00
Manhole with ring and cover (6'- 8')
1
EA @
2,100 =
$
2,100.00
Manhole with ring and cover (8' -10')
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10'- 12')
1
EA @
2,700 =
$
2,700.00
4" service laterals
2
EA @
500 =
$
1,000.00
6" service laterals
20
EA @
700 =
$
14,000.00
Total Construction
$
202,400.00
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE ALONG HWY 168
8" Gravity Sewer (0 - 6')
1,000
LF @
30 =
$
30,000.00
8" Gravity Sewer (6'- 8')
1,000
LF @
32 =
$
32,000.00
8' Gravity Sewer (8'- 10')
1,000
LF @
34 =
$
34,000.00
8" Gravity Sewer (10' -12')
500
LF @
36 =
$
18,000.00
Manhole with ring and cover (0 - 6')
4
EA @
1,800 =
$
7,200.00
Manhole with ring and cover (6'- 8')
2
EA @
2,100 =
$
4,200.00
Manhole with ring and cover (8'- 10')
2
EA @
2,400 =
$
4,800.00
Manhole with ring and cover (10' - 12')
3
EA @
2,700 =
$
8,100.00
6" service laterals
15
EA @
700 =
$
10,500.00
4" service laterals
8
EA @
500 =
$
4,000.00
Lift Station and tie-in
1
LS @
90,000 =
$
90,000.00
6" PVC Force Main along NC 168
1,750
LF @
11 =
$
19,250.00
1rsteel casing installed by bore
50
LF @
200 =
$
10,000.00
Total Construction
$
272,050.00
SECTION FROM SOUTH OF VA LINE TO SOUTH OF ABC STORE ALONG HWY 168
8" Gravity Sewer (0 - 6')
500
LF @
30 =
$
.15,000.00
8" Gravity Sewer (6'- 8')
400
LF @
32 =
$
12,800.00
Manhole with ring and cover (0 - 6')
2
EA @
1,800 =
$
3,600.00
Manhole with ring and cover (6' - 8')
2
EA @
2,100 =
$
4,200.00
6" service laterals
8
EA @
700 =
$
5,600.00
4" service laterals
8
EA @
500 =
$
4,000.00
Lift Station and tie-in
1
LS @
90,000 =
$
90,000.00
6" PVC Force Main along NC 168
2,500
LF @
11 =
$
27,500.00
Total Construction
$
162,700.00
CU0102
08/082001 2
SECTION FROM SOUTH OF ABC STORE TO NORTH OF BAXTER'S LANE ALONG HWY 168
8" Gravity Sewer (0 - 6')
500
LF @
30 =
$
15,000.00
8" Gravity Sewer (6'- 8')
500
LF @
32 =
$
16,000.00
8" Gravity Sewer (8'- 10')
500
LF @
34 =
$
17,000.00
8" Gravity Sewer (10'- 12')
500
LF @
36 =
$
18,000.00
8" Gravity Sewer (12'- 14')
500
LF @
38 =
$
19,000.00
Manhole with ring and cover (0 - 6')
2
EA @
1,800 =
$
3,600.00
Manhole with ring and cover (6'- 8')
2
EA @
2,100 =
$
4,200.00
Manhole with ring and cover (8' - 10')
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10'- 12')
1
EA @
2,700 =
$
2,700.00
Manhole with ring and cover (12'.-14')
1
EA @
3,000 =
$
3,000.00
6" service laterals
7
EA @
700 =
$
4,900.00
4" service laterals
2
EA @
500 =
$
1,000.00
Total Construction
$
106,800.00
SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN' RIDGE RD
8" Gravity Sewer (0 -6')
1,000
LF @
30
= $
30,000.00
8" Gravity Sewer (6'- 8')
1,000
LF @
32 =
$
32,000.00
8" Gravity Sewer (8'- 10')
500
LF @
34 =
$
17,000.00
8" Gravity Sewer (10'- 12')
500
LF @
36 =
$
18,000.00
Manhole with ring and cover (0 - 6')
4
EA @
1,800 =
$
7,200.00
Manhole with ring and cover (6'- 8')
3
EA @
2,100 =
$
6,300.00
Manhole with ring and cover (8' - 10')
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10' - 12')
2
EA @
2,700 =
$
5,400.00
16" steel casing installed by bore
100
LF @
225
$
22,500.00
6" service laterals
9
EA @
700 =
$
6,300.00
4" service laterals
7
EA @
500 =
$
3,500.00
Lift Station and tie-in
1
LS @
90,000 =
$
90,000.00
6" PVC Force Main along NC 168
50
LF @
11 =
$
550.00
6" dir bore under Shingle Landing Creek
100
LF @
150
$
15,000.00
Total Construction
$
256,150.00
SOUTH MILLS ROAD AT HWY 168 TO NEW LAGOON
12" PVC Force Main
2,856
LF @
25 =
$
71,400.00
Residential Pump Station
16
LS @
5,500 =
$
86,000.00
Total Construction
$
159,400.00
Total Collection System Construction Cost
$
1,159,500.00
III. WWTP COST ESTIMATE
lagoon and piping
3
acres@
1.25 /sf
$
159,268.51
lagoon liner
3
acres@
0.75 /sf
$
95,561.11
effluent pump station and generator
LS
$
350,000.00
spray system
7
acres@
7,500.00 /acre
$
52,456.71
crop planting
7
acres@
1,000 /acre
$
6,994.23
miscellaneous equipment(tractor, rake, and balers)
LS
$
50,000.00
miscellaneous equipment (disinfection)
LS
$
50,000.00
Total Construction
$
764,280.55
CU0102
08/08/2001 3
IV SUMMARY OF COSTS
' Collection System Construction
Treatment System Construction
TOTAL CONSTRUCTION
Engineering
' Design (12%)
Inspection (8%)
TOTAL ENGINEERING
' LAND
CONTINGENCIES
' GRAND TOTAL
' POTENTIAL FUNDS
Costs
Rural Center Funds
' Tap -On Fees
Other commitments
Amount to be financed
' V. EXPENDITURES
' Debt Service
Salaries
0 & M @ $1.20/1,000 gal
' 0 & M PS @ $500/PS/10years
Total
08/08/2001
1
$
1,159,500.00
$
764,280.55
$
1,923,780.55
$
230,853.67
$
153,902.44
$
384,756.11
38 acres@ $
4,000.00
$
153,168.04
$
192,378.06
$ 2,654,082.76
400,000
0
2,254,083
0
20 year loan 0- 6%
$ (0.00)
$ 30,000.00
$ 6,961.58
$ 800.00
$ 37,761.58
4
USDA RD.
40 year Cgs 6%
$
(0.00)
$
30,000.00
$
6,961.58
$
800.00
$
37,761.68
$ 2,654,082.76
SRF. 20 year Cad 3%
$ (0.00)
$ 30,000.00
$ 6,961.58
$ 800.00
$ 37,761.58
CU0102
VI. PROJECTED SEWER RATES
100% Participation
20 year loan @ 6%
RESIDENTIAL
SMALL BUSINESS
4,648 gal/mo
2,500 gal/mo
Assume base rate per month = $20.00
Rate/1,000 gal
$
2.74
$ 2.74
Avg. mo. Bill
$
32.76
$ 26.86
MEDIUM BUSINESS
LARGE BUSINESS
7,500 gal/mo
100,000 gal/mo
Assume base rate per month = $20.00
Rate/1,000 gal
$
2.74
$ 2.74
Avg. mo. Bill
$
40.58
$ 294.45
USDA RD, 40 year @ 6%
RESIDENTIAL
SMALL BUSINESS
4,648 gal/mo
2,500 gal/mo
Assume base rate per month = $20.00
Rate/1,000 gal
$
2.74
$ 2.74
Avg. mo. Bill
$
32.76
$ 26.86
MEDIUM BUSINESS
LARGE BUSINESS
7,500 gal/mo
100,000 gal/mo
Assume base rate per month = $20.00
Rate/1,000 gal
$
2.74
$ 2.74
Avg. mo. Bill
$
40.58
$ 294.45
SRF loan, 20 year @ 3%
RESIDENTIAL
SMALL BUSINESS
4,648 gal/mo
2,500 gal/mo
Assume base rate per month = $20.00
Rate/1,000 gal
$
2.74
$ 2.74
Avg. mo. Bill
$
32.76
$ 26.86
MEDIUM
BUSINESS
LARGE BUSINESS
7,500 gal/mo
100,000 gal/mo
Assume base rate per month = $20.00
Rate/1,000 gal
$
2.74
$ 2.74
Avg. mo. Bill
$
40.58
$ 294.45
CU0102
08MB12001
5
VII. SUMMARY
' The purpose of this study was to determine the feasibility of constructing a
central sewer system to serve the portions Currituck County most in need.
' The mainland area of Currituck County was addressed in the study; Gibbs
Woods, the Fruitville Township, and the Outer Banks were not included.
' Factors such as population densities, concentrated growth areas, growth
projections, soil types, topography, and zoning were considered in the
analysis. Existing sewer facilities throughout the County were investigated
' and discussed.
Areas of the County with septic system failures were investigated which
' included Shawboro, Sligo, Grandy, and Moyock. Of those areas, Moyock
proved to be the best candidate for a sewer system because of its incidence
of septic problems and population density. Other areas of the County with
' septic problems were simply too rural for the County to economically
provide sewer service for.
' All sewer collection system and treatment system types were then studied to
determine the best possible and most economic configuration for Moyock.
A combination gravity/force main collection was selected. The gravity
portion would serve businesses along the U.S. Highway 168 corridor while
the force mains with residential pump stations would serve the remainder of
the project area. A lagoon and spray field treatment plant was found to be
' best suited to the project when considering number of users and the county
regulations against surface water discharge.
' The costs of providing this type of sewer to Moyock were analyzed area by
area. Physical house counts were conducted of the entire township and a
total service area defined. The costs of providing sewer to the entire service
' area were prohibitive so, in order to provide the County with the most
affordable system with the greatest reach, different scenarios were developed
and studied. Of seven different scenarios considered, one was viewed as
' being the most valuable to the most users and to the County.
This service area is referred to in the text as the "recommended alternative".
' That area includes the commercial corridor of U.S. Highway 168,
Sawyertown Road, Tull's Bay Colony, and the Ranchland subdivision. All
' of these areas were identified by the Health Department as being in the most
need of sewer service.
Construction costs of the system were still prohibitive so the recommended
alternative was broken into four Phases, the first serving only the
commercial corridor at a cost of $2,538,655. Several funding and financing
36
' &8nf
methods were discussed and presented in the text and exhibits which
targeted $30 to $35 monthly residential sewer bills.
The costs for Phases II through IV as a whole are also discussed as well as
the cost to construct the entire project serving all customers in the service
' area of Moyock.
0
37
p
EXHIBIT A
SOILS MAPS AND ENGINEERING DATA
FOR PROJECT AREA
F
C
1
•��' 1 f3'`�'`��'�'•S"fit • `•�• " ' ,t.1t
' t •�., •may 1tp.. s ' .,. .��• .:. r .`
Ml
M ,• ; f ,S. to ; 1 r'..�' � ..r" :�y 1, .,+ ILI r u
.". .,.,til,,., air F. � ram:•: : ;� � ?�� �. ' S I:; r.
. •f
Fly' 1
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f ��11IW.1 +yi % • , ., to �'• I, 1�r111� �/:'• `' ♦4:
//r' ii�r''_..f f '� 1, f �0 ' , •.y+. t�1'/' •` '1 lit ) �/. r _Y'!'.
��t�"'• ti.�jr� Jf'� �'!. �,�� �'� 1 •�' •G'�'�.crl�Ir'�'��� tr`�r M
. . 1 t• !q t.
: !: �'•' / '� � p ... � 1q"1'rY: i�'r`F.jl.�, ;+i � ° ,ta%;� '=rNAY t�y^+2s` r�o
��+�.I� �r,�r.,. j �4.r .hr?I T�`I� +'�� �' ? ,i' 1��'�ir + `~ r�ll�'� �'�F ' '''�•�`�'k `, '►
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�.• q �+ # c �.,y,},�.�'�,'�„��L.•..,:;+'•.�••firt,r► , t:l 'f �d �s!f;lr,
�, i Y ► tYv '� � '• it ,� r1'1'+r'1 N •r ;:. P:+!l•••t 7 1
t �.rt ��. t,s.ft� �\�t,i.''il' q�, ��i(ti.�ir � �/r 71'S, '�f,1SL t,��h� ySFI 1h�1,1`.j_ ,i ki + �/I��.t .•
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p rajJ�y Sr�l„at'",, ' �r•,q%'ss+�C'•e_�!` fl' n,•,., S!'}'p •{'.�.L„A� i'Ik ,` � `r!1�p..
r 1.A.'filk�• . 1(1•'�� .-•C':'P J., '1 l:y, '* N ,'�7�•8ui` ��•� r';'
sf dot �4 .. �,.� t I ° #�#�,_ �r• ., u 1'+; q, •
{1' :i.�'�\� 't'yij.;.=:i..''t • .:�t�` ,, li'�1 f �' f �;� ,�•S;. ; :!1.% � � � "��� / Y'�.
' 'mot' � ' •:4. .A 3 � f-
.�• 'fry) (''�. ! 'y ,'•' �'� 1•" . 1� , • �'P�►� � ���. �" ` /
t: .ly4�•� •, , .��' ,t 4.•• .►•r, i�A. 1 �11.���,. •• ®' III
`.�' •y t 0 J)h, „ r`.. r 1 ,f }tj �,� � •?r��l1•.r�}►/•,{:y�liJ
:iY
- r
Wa
Lo
,Wa StA ~StA 1 RoAaA
z.,. `AiN
StA
Wa
rW a, s
ck *ate �. t '• Ys
{y to e
"' - ,, `e ,^ AL £ F ` t. ` ,fir �.. '` Z StA
v.
tip'
IC
" S
F
s, psAaA
a
�.
At
a,s hR; AL 12.
To
Oil
- ' 1. �•�. s �• - J , �
�� `�• ..�x_�-e`er `ter J ;
Ro Ca
Ds >' i
StA
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r ° , `s N0 EST At Eij
'G
f , AaA
.x
To
.00
� - � Ly�� �',,,,,� "F a "4` �<, ♦ , ''r � t� � �� ..
�At t�
248
r`
® Hobbs, Upchurch & Associates, P.A.
carsulting Engineers
SOUTHERN PINES, NC - MYRTLE PEACH, SC
NACS HEAD, NC - RALEICH, NC - CHARLOTTE, NC
2522 S. Croaten Hwy., Suite 2>L Nags Head, North Coroltno 27959
Phone: (252) 441-3913 - Fos: (252) 441-21CO
Currituck County
Centralized Sewer Feasibility Study
SOIL SURVEY OF SERVICE AREA
Scale - 1:20000
gill Hobbs, Upchurch & Associates, P.A.
caWrIng Englnears
RE SOUTHERN PINES, NC — VMTLE BEACH, SC
MACS HEAD, NC — RALEICH. NC — CHARLOTTE. NC
252I S. Croatan Hwy., Suite 2A Nags Head. North Carolina 21S59
Phone: (252) 441-3913 — Fax: (252) 441-21CO
Currituck County
Centralized Sewer Feasibility Study
SOIL SURVEY OF SERVICE AREA
Scale - 1:20000
27
ri
V
V
F
r
Prime farmland
Prime farmland is one of several kinds of important
farmland defined by the U.S. Department of Agriculture.
It is of major importance in providing the Nation's short -
and long-range needs for food and fiber. The acreage of
high -quality farmland is limited, and the U.S. Department
of Agriculture recognizes that responsible levels of
government, as well as individuals, must encourage and
facilitate the wise use of our Nation's prime farmland.
Prime farmland, as defined by the U.S. Department of
Agriculture, is the land that is best suited to producing
food, feed, forage, fiber, and oilseed crops. It has the
soil quality, growing season, and moisture supply needed
to economically produce a sustained high yield of crops
when it is treated and managed using acceptable
farming methods. Prime farmland produces the highest
yields with minimal inputs of energy and economic
resources, and farming it results in the least damage to
the environment.
Prime farmland may now be in crops, pasture,
woodland, or other land, but not urban and built-up land
or water areas. It must either be used for producing food
or fiber or be available for these uses.
Prime farmland usually has an adequate and
dependable supply of moisture from precipitation or
irrigation. It also has favorable temperature and growing
season, acceptable acidity or alkalinity. It has few or no
rocks and is permeable to water and air. Prime farmland
is not excessively erodible or saturated with water for
long periods and is not flooded during the growing
season. The slope ranges mainly from 0 to 6 percent.
For more detailed information on the criteria for prime
farmland consult the local staff of the Soil Conservation
Service.
About 10,362 acres, or nearly 6 percent, of Currituck
County meets the soil requirements for prime farmland.
Areas are scattered throughout the county but are mainly
in map unit 1 of the general soil map.
The soils in Currituck County identified as prime
farmland soils are:
Altavista fine sandy loam, 0 to 2 percent slopes
Bojac loamy sand, 0 to 3 percent slopes
Munden loamy sand
State fine sandy loam, 0 to 2 percent slopes
State fine sandy loam, 2 to 6 percent slopes
Important farmland
Some soils in Currituck County are important to
agriculture locally and at the state level. In one or more
ways, their characteristics do not meet the requirements
of prime farmland. These soils are naturally wet or
droughty. Yet, they are productive soils with good yield
potential under good management.
State and locally important soils in Currituck County
make up about 85,381 acres, nearly 49 percent of the
county. The soils in Currituck County identified as having
state and local importance are:
Augusta fine sandy loam
Cape Fear loam
Conetoe loamy sand, 0 to 3 percent slopes
Dragston loamy fine sand
Pasquotank silt loam
Ponzer muck
Portsmouth fine sandy loam
Roanoke fine sandy loam
Tomotley fine sandy loam
Currituck County, North Carolina 87
' TABLE 12.--SANITARY FACILITIES
[Some terms that describe restrictive soil features are defined in the Glossary. See text for definitions of
"slight," "moderate," "good," "fair," and other terms. Absence of an entry indicates that the soil was
not rated]
J
'J
I .
Soil name and I Septic tank
map symbol I absorption
I fields
_F__
I Sewage lagoon
I areas
I
I
I Trench
I sanitary
I landfill
I
I Area
I sanitary
I landfill
I
I Daily cover
I for landfill
I
AaA----------------- ISevere:
ISevere:
[Severe:
(Severe:
[Fair:
Altavista I wetness.
I wetness.
I wetness.
I wetness.
I
I wetness.
I
At— ----------------- ISevere:
I
ISevere:
I
ISevere:
ISevere:
I
(Fair:
Augusta I wetness.
I wetness.
I wetness,
I wetness.
I wetness.
I
I
I
I seepage.
I
I
I
I
I
BN■: I
I
I
I
I
Beaches. I
I
I
I
I
I
I
Newhan------------- ISevere:
I
ISevere:
I
ISevere:
ISevere:
I
(Poor:
I poor filter.
I seepage_.
I seepage,
I seepage.
I seepage,
I
I
I too sandy.
I
I
I
I too sandy.
I
I
BoA--- -------------- (Moderate:
I
ISevere:
ISevere:
ISevere:
(Fair:
Bojac I wetness.
I seepage.
I wetness,
I seepage.
I thin layer.
I
I
I seepage.
I
I
I
I
I
Ca ------------------ ISevere:
I
ISevere:
ISevere:
ISevere:
I
(Poor:
Cape Fear I wetness,
I seepage,
I wetness,
I seepage,
I too clayey,
I peres slowly.
I flooding,
I too clayey.
I wetness.
I hard to pack,
I
I wetness.
I
I
I wetness.
I
Cb------------------ ISevere:
I
ISevere:
I
ISevere:
I
ISevere:
I
(Poor:
Conaby I wetness.
I seepage,
I seepage,
I seepage,
I wetness,
I
I flooding,
I wetness.
I wetness.
I thin layer.
I
I excess humus.
I
I
I
I
I I
CnA----------------- (Slight ----------- ISevere:
I
ISevere:
ISevere:
I
(Poor:
Conetoe I
I seepage.
I seepage.
I
I seepage.
I
I seepage.
I
I
CoB----------------- ISevere:
I
ISevere:
ISevere:
ISevere:
(Poor:
Corolla I wetness,
I seepage,
I wetness,
I seepage,
I seepage,
I poor filter.
I flooding,
I seepage.
I wetness.
I too sandy.
I
I wetness.
I
I
I
I
I
I
I
CrB*: I
I
I
I
I
I
Corolla ------------ ISevere:
ISevere:
ISevere:
ISevere:
(Poor:
I wetness,
I seepage,
I wetness,
I seepage,
I seepage,
I poor filter.
I flooding,
I seepage.
I wetness.
I too sandy.
I
I wetness.
I
I
I
I
I
Duckston----------- ISevere:
I
ISevere:
I
ISevere:
ISevere:
I
[Poor:
I flooding,'
I seepage,
I flooding,
I flooding,
I seepage,
I wetness,
I flooding,
I wetness,
I seepage,
I too sandy,
I poor filter.
I wetness.
I too sandy.
I
I wetness.
I
I wetness.
I
I
Cu------------------ ISevere:
I
ISevere:
ISevere:
(Severe:
[Poor:
Currituck I flooding,
I seepage,
I flooding,
I flooding,
I seepage,
I wetness,
I flooding,
I seepage,
I seepage,
I too sandy,
I poor filter.
I excess humus.
I wetness.
1
I wetness.
I
I wetness.
1
I
Da ------------------ ISevere:
I
ISevere:
ISevere:
ISevere:
(Poor:
Dare I wetness,
I flooding,
I seepage,
I wetness.
I excess humus,
I peres slowly.
I excess humus,
I wetness,
I
I wetness.
I
I wetness.
I excess humus.
I
I
I
I
I
Do ------------------ ISevere:
I
ISevere:
ISevere:
ISevere:
I
(Poor:
Dorovan I flooding,
I flooding,
I flooding,
I flooding,
I wetness,
I wetness,
I excess humus,
I seepage,
I wetness.
I excess humus.
I poor filter.
I
I wetness.
I
I wetness.
I
I
I
I
I
See footnote at end of table.
k
Soil survey
' 88
'
TABLE 12.--SANITARY
FACILITIES --Continued
Soil name and I Septic tank
I Sewage lagoon
I -Trench
I sanitary
I Area
I sanitary
I Daily cover
I for landfill
map symbol I absorption
( fields
I areas
I
I landfill
I landfill
I
'
I
Ds------ ------------ ISevere:
I
(Severe:
I
ISevere:
I
(Severe:
I
(Poor:
Dragston I wetness,
I wetness,
11 wetness,
I wetness,
seepage.
I wetness,
thin layer.
I poor filter.
I seepage.
i seepage.
i
i
'
Dom------ ----------- lSevcre:
ISevere:
ISevere:
ISevere:
(Poor:
Duckston I flooding,
I seepage,
I flooding,
I flooding,
I seepage,
I seepage,
l too sandy,
I wetness,
I flooding,
I wetness,
'
I poor filter.
I wetness.
i too sandy.
i wetness.
i wetness.
Du*. I
I
I
I
Dune land
I
I
DDD:
I
I
'
Dunne land. i
Newhan------- ----- ISevere:
I
ISevere:
ISevere:
ISevere:
(Poor:
I poor filter,
I seepage.
I slope,
I seepage,
I seepage,
slope.
i too sandy.
i slope.
I toopeo sandy,
i
I
Mu------------ISevere:
I
ISevere:
I
ISevere:
I
ISevere:
(Fair:
Munden I wetness.
l
I seepage,
I wetness.
I seepage,
I wetness.
I seepage,
I wetness.
I
I wetness,
I thin layer.
I
NeC----------------- ISevere:
I
ISevere:
I
ISevere:
ISevere:
(Poor:
Newhan I poor filter.
I seepage.
I too sandy.
I seepage.
I
I seepage,
I too sandy.
I
NhC■: I
I
I
I
I
I
I
Newban------------ ISevere:
ISevere:
ISevere:
ISevere:
(Poor:
I poor filter.
I seepage.
I too sandy.
I seepage.
I
I seepage,
too sandy.
'
j
Corolla ------------ ISevere:
I
ISevere:
I
ISevere:
I
ISevere:
i
(Poor:
I
I wetness,
I seepage,
I wetness,
I seepage,
I wetness.
seepage,
too sandy.
I poor filter.
I flooding,
I seepage.
i
wetness.
i
I
'
No-------------- --- ISevere:
ISevere:
ISevere:
ISevere:
(Poor:
Nimmo I wetness.
I seepage,
I seepage,
I
I seepage,
I wetness.
I wetness,
I thin layer.
I
I wetness.
wetness.
'
Os-----------ISevere:
ISevere:
I
ISevere:
I flooding,
ISevere:
I flooding,
(Poor:
I seepage,
Osier I flooding,
seepage,
I wetness,
I flooding,
I seepage,
I seepage,
I too sandy,
I poor filter.
I wetness.
wetness.
i wetness.
i wetness.
'
OuB---------------- ISevere:
ISevere:
i
ISevere:
I flooding,
ISevere:
I flooding,
(Poor:
I seepage,
Ousley I flooding,
I seepage,
I
I too sandy.
I wetness,
I flooding,
I seepage,
seepage,
I poor filter.
I wetness.
wetness.
wetness.
----------- l
Pa --ISevere:
I
ISevere:
i
ISevere:
I
i
ISevere:
I wetness.
(Poor:
I wetness.
Pasquotank I wetness.
I seepage,
seepage,
I
I wetness.
wetness.
I
Pa-------- --------- ISevere:
ISevere:
i
ISevere:
ISevere:
(Poor:
Ponzer I wetness,
I flooding,
I wetness.
I wetness.
I wetness.
I
peres slowly.
I excess humus,
I
I
I wetness.
I
Pt--- ------------- ISevere:
ISevere:
ISevere:
ISevere:
(Poor:
'
Portsmouth I wetness,
I filter.
I seepage,
I flooding,
I seepage,
I wetness,
I seepage,
I wetness.
I seepage,
I too sandy,
poor
I
I wetness.
I too sandy.
i
i wetness.
'
I
See footnote at end of table.
I
Currituck County, North Carolina
TABLE 12.--SANITARY
FACILITIES --Continued
89
'
Soil name and I Septic tank
I Sewage lagoon
I Trench
I sanitary
I Area
I sanitary
I Daily cover
I for landfill
map symbol I absorption
I areas
I landfill
I landfill
I
I fields
I
I
I
I
I
I
Ro------------------ [Severe:
ISevere:
[Severe:
I flooding,
(Severe:
I flooding,
(Poor:
I hard to pack,
Roanoke I flooding,
I slowly,
I flooding.
I
I wetness,
I.Wetness.
[,too clayey,
'
peres
I wetness.
I
i too clayey.
i
i wetness.
StA, StB------------ IModerate:
ISevere:
ISevere:
(Moderate:
I wetness.
(Fair:
I too clayey,
State I wetness.
I seepage.
I seepage,
wetness.
i thin layer.
To----- ----------- =ISevere:
ISevere:
ISevere:
i
ISevere:
(Poor:
wetness.
Tomotley I wetness,
I wetness.
i wetness.
i wetness.
i
I peres slowly.
I
I
I
'
I
vat. I
I
I
I
I
�
Udorthents I
I
I
I
I
I
Wa------------------ ISevere:
I
ISevere:
ISevere:
I wetness,
ISevere:
I wetness.
(Poor:
I too clayey,
Wahee I wetness,
I wetness.
too clayey.
I hard to pack,
'
I peres slowly.
i
i
i
wetness,
I
WnB----------------- ISevere:
I
ISevere:
I
ISevere:
I
ISevere:
I
(Poor:
Wando I poor filter.
I seepage. a e.
i seepage.
i seepage.
i seepage.
'
I
Ws---- -------------- ISevere:
I
ISevere:
ISevere:
I wetness,
ISevere:
I wetness.
(Poor:
I wetness,
'Wasda I wetness.
I
I flooding,
I excess humus,
I seepage.
i
excess humus.
i
I
I
i wetness.
I
I
I
* See description of the map unit for composition and behavior characteristics of the map unit.
198
Soil survey
TABLE 16.--PHYSICAL AND CHEMICAL PROPERTIES OF THE SOILS
1 [The symbol < means less than; > means more than. Entries under "Erosion factors--T" apply to the entire
profile. Entries under "Organic matter" apply only to the surface layer. Absence of an. entry indicates
that data were not available or were not estimated]
Soil name and I Depth
map symbol I
1
AaA -------------- I
Altavista I
I
1 At --------------
Augusta I
I
1 BN}:
Beaches. I
I
Newhan----------I
I
BoA--------------I
Bojac I
I
1
Ca ---------------I
Cape Fear I
I
Cb --------------- I
1 Conaby 1
I
I
i CnA--------------I
Conetoe I
I
I
cos --------------I
Corolla I
I
CrB*: I
Corolla ---------I
I
Duckston--------I
I
Cu---------------I
Currituck I
I
I
Da -------------- I
Dare I
Do--------------- I
1 Dorovan
I
I
Ds ---------- -----I.
Dragston I
I
IDt ---------------I
Duckston I
I
Dui. I
6-15
15-42
42-80
0-8
8-48
48-60
0-75
0-10
10-34
34-72
0-12
12-42
42-60
0-13
13-21
21-33
33-73
0-23
23-43
43-80
0-72
0-72
0-72
0-14
14-28
28-60
0-70
70-96
0-10
10-84
84-96
0-8
8-42
42-60
0-72
Permeability 1Availablel Soil I Shrink -swell
I water Ireactionl potential
I,.�.. 4 ►.. 1 1
2.0-6.0
0.6-2.0
2.0-6.0
0.6-2.0
2.0-6.0
>20
6.0-20
2.0-6.0
>6.0
0.6-6.0
0.06-0.2
6.0-20
0.2-2.0
2.0-6.0
2.0_6.0
6.0-20
2.0-6.0
6.0-20
>20
>20
>20
0.6-6.0
0.6-6.0
6.0-20
0.06-0.2
6.0-20
0.6-2.0
0.6-2.0
6.0-20
>6.0
2.0-6.0
>6.0
>20
1 Dune land I I
DwDf:
I I
Dune land. I I
I I
Newhan---------- 1 0-75 1 >20
I I
See footnote at end of table.
1
10.12-0.2014.5-6.0 ILow------------
10.12-0.2014.5-6.0 ILow------------
I --- 14.5-6.0 ILOW ------------
1 1 1
10.10-0.1514.5-6.0 ILow------------
10.12-0.1814.5-6.0 ILow------------
10.06-0.1214.5-6.0 lLow ------------
I I I
I I I
I I
I <0.05 16.6-7.8 lLow ------------
I I I
10.05-0.0814.5-6.5 [Low------------
10.08-0.1714.5-6.5 ILow------------
10.02-0.0814.5-6.0 lLow ------------
I 1 1
10.15-0.2214.5-6.5 ILow------------
10.12-0.2214.5-6.0 [Moderate-------
10.02-0.0614.5-6.0 lLow ------------
I 1 1
10.20-0.2613.6-5.5 [Low------------
10.04-0.1013.6-5.5 [Low------------
10.10-0.1413.6-5.5 [Low ------------
I--- I --- I ---------------
I I I
10.05-0-1014.5-6.0 [Low------------
I0.10-0.1514.5-6.0 [Low------------
10.05-0-1014.5-6.0 lLow ------------
I 1 1
10.01-0-0315.6-7.8 [Low ------------
I I I
I I I
I I I
10.01-0-0315.6-7.8 [Low-------- ----
I 1 1
10.02-0-0515.6-8.4 [Low ------------
I 1 1
10.25-0-3514.5-6.0 [Low------------
10.25-0.3514.5-6.0 [Low------------
10.04-0.0913.6-6.0 lLow ------------
I 1 1
10.20-0.2613.6-4.4 [Low------------
10.04-0.0913.6-6.0 lLow ------------
I 1 1
10.25-0-5013.6-4.4 1 ---------------
10.25-0-5013.6-4.4 1 ---------------
10-05-0-0814.5-5.5 lLow ------------
I I I
10.06-0.1114.5-5.5 [Low------------
10.08-0.1614.5-5.5 [Low------------
10.04-0.0814.5-5.5 [Low------------
10.02-0.0515.6-8.4 [Low------------
[ I I
I I I
I I I
I I I
I I I
I I I
1 <0.05 16.6-7.8 1Low------------
I Erosion
I
I factors
I Organic
I matter
I K
I T
I
Pet
I
1 0.20
I
I 4
I
1 .5-3
1 0.24
1
1
I
I
1 4
I
.5-2
1 0.15
1
1 0.24
1
1
0.10
0.28
0.28
0.28
0.15
0.32
0.10
0.10
0_15
0.15
0.15
0.10
0.10
0.10
0.10
0.15
0.17
0.17
0.17
0.10
0.10
5
1 ---
3
1 .5-1
I
5
I
1 5-15
---
I
I
I 20-60
I
I
5
I
I
1 .5-2
I
I
5
I
1 <.5
I
1
5
I
1 <.5
5
1 .5-1
---
I 20-60
I
---
I
I
1 20-95
I
---
I
I 20-60
I
4
I
1 .5-1
5
I
I
1 .5-1
5
Currituck County, North
Carolina
99
TABLE
16.--PHYSICAL
AND CHEMICAL PROPERTIES OF THE SOILS --Continued
Erosion
'
Soil name and I
Depth I
Permeability
IAvailablel Soil
I Shrink -swell I
factors
I Organic
map symbol I
I
I water Ireadtionl potential I
I
I matter
I
I
Ica acit I
I I
K I
T I
In I
In hr
I In/inI PH
I I
I
Pet
I
Mu ------ =-------- I
I
o-14 I
2.o-6.o
I
10.06-0.1014.5-6.0
ILow------------ 1
0.20 1
4 1 .5-1
Munden 1
14-32 1
0.6-2.0
10.08-0.1714.5-6.0
ILow------------ 1
0.17 1
1
1
32-60 I
>2.0
10.04-0:0814.5-6.0
(Low------------ 1
0.17 I
1
NeC------------- I
0-75 (
>20
I C0.05 16.6-7.8
ILow------------ I
0.10 I
I
5 I ---
I
Newhan I
I
I I
I I
I I
I I
I
I
'
NhC*: 1
Newhan ---------- 1
I
0-75 I
>20
I I
1 <0.05 16.6-7.8
I I
ILow------------ 1
I
I
0.10 1
I
5 1 ---
I
Corolla --------- 1
I
0-72 I
>20
I I
10.01-0.0315.6-7.8
1 Low ------------ 1
I I
0.10 1
I
5 1 <•5
I
I
No --------------- I
I
0-9 1
2.0-6.0
I I
10.06-0.1013.6-5.5
ILow------------ 1
0.17 1
4 1 1-2
Nimmo 1
1
9-30 1
30-60 1
0.6-2.0
>2.0
10.08-0.1713.6-5.5
10.04-0.0813.6-5.5
ILow------------ 1
ILow ------------ 1
I
0.17 1
0.17 1
I
1
I
I
I
Os --------------- 1
I
0-5 1
6.0-20
I I
10.03-0.1014.5-6.0
I
ILow ------------ 1
0.10 1
5 1 2-5
Osier 1
5-60 1
6.0-20
10.03-0.1014.5-6.0
ILow------------ 1
0.10 1
1
I
1 I
I
1
------
OuB------ -I
0-7 I
6.0-20
10.05-0.1016.E-7.3
ILow------------ I
0.15 I
5 I <.5
Ousley 1
7-80 1
6.0-20
10.02-0.0616.6-7.3
I
ILow------------ 1
I
0.15 1
1
I
Pa ---- -----------I
I
0-7 I
0.6-2.0
I
10.18-0.2614.5-6.0
ILow------------ I
0.43 I
5 I 2-5
1
1
Pasquotank 1
7-45 1
0.6-2.0
10.15-0.2014.5-5.5
ILow------------ 1
0.43 1
1
45-60 1
2.0-6.0
10.05-0.1014.5-5.5
ILow------------ 1
1 1
0.32 1
1
1
1
1
Po ---- ---------- 1
1
0-26 1
o.o6-2.o
1 1
10.35-0.4513.6-4.4
ILow------------ I
---- I
--- 1 25-60
Ponzer 1
26-60 1
0.06-2.0
10.10-0.2413.6-6.5
I I
ILow------------ 1
I
0.24 1
1
1
Pt --------------- I
I
o-16 I
o.6-6.0
10.12-0.1813.6-5.5
ILow------------ I
1
0.24 I
0.28 1
5 I 3-15
1
Portsmouth 1
16-32 1
o.6-2.0
10.14-0.2013.6-5.5
ILow------------
1
32-38 1
2.0-6.0
10.06-0.1013.6-5.5
ILow------------ 1
0.17 1
1
1
38-80 1
6.0-20
10.02-0.0513.6-6.0
I
1Low------------ 1
0.17 1
1
1
Ro --------------- I
1
0-8 I
o.6-2.0
1
10.14-0.2014.5-5.5
ILow------------ 1
0.37 1
4 1 .5-3
Roanoke 1
8-45 1
0.06-0.2
(0.10-0.1914.5-5.5
IModerate------- 1
0.24 1
1
1
45-80 1
0.o6-20
10.04-0.1414.5-5.5
IModerate------- 1
0.24 1
1
1
StA, StB --------- 1
1
0-11 I
0.6-6.0
I I
10.10-0.2014.5-5.5
I
ILow------------ I
(Low------------ 1
0.28 I
0.28 1
4 I C2
1
State 1
11-37 1
o.6-2.0
10.14-0.1914.5-5.5
1
1
37-65 1
>2.0
10.02-0.1014.5-6.0
ILow------------ 1
1
0.17 1
1
I
1
To --------------- 1
1
0-10 1
2.0-6.0
1 1
10.10-0.1513.6-5.5
1
ILow------------ 1
0.20 1
5 I 1-6
'
Tomotley 1
10-50 1
o.6-2.0
10.12-0.1813.6-5.5
ILow------------ 1
0.20 1
1
1
50-60 1
0.2-2.0
10.12-0.1813.6-6.0
ILow------------ 1
I
0.20 1
I
1
I
Ud*. I
I
I I
I I
I
I
I
I
I
Udorthents I
I
1 I
I
I
I
'
I
Wa--------------- I
I
0-7 I
0.6-2.0
I I
10.10-0.1514.5-6.0
I I
ILow------------ I
0.28 I
5 I .5-5
Wahee 1
7-60 1
0.06-0.2
10.12-0.2014.5-5.5
IModerate------- 1
1
0.28 1
0.28 1
1
1
1
60-99 1
0.2-0.6
10.12-0.2014.5-5.5
IModerate-------
'
I
yl;,B_------- -___I
I
0-3 I
6.0-20
1
10.05-0.0815.E-7.3
ILow------------ I
ILow------------ 1
0 .10 1
0.10 1
5 1 <1
Wando 1
3-99 1
6.0-20
10.03-0.0715.6-7.3
1
1
I
ws-------------- 1
I
0-12 1
0.2-0.6
I I
10.20-0.2513.6-5.5
1--------------- I----
1
I
0.20 1
--- 1 20-50
1
Wasda 1
12-40 1
0.6-2.0
lo.12-0.1814.5-5.5
[Low ----------
1
0.24 1
1
1
1
40-50 1
o.6-2.0
10.12-0.1815.6-7.8
ILow------------
1
I
50-60 1
I
6.0-20
10.02-0.0615.6-7.8
I I
ILow------------ 1
I I
0.15 1
I
1
I
'
0 See description of the
map unit for
composition and behavior characteristics
of the map
unit.
11
%Mll10 0
HOUSE COUNT MAPS
•1L
R
F
N1
2
qjHobbs, Upchurch & Associates, P.A. CURRITUCK COUNTY CENTRALIZED LEGEND
Consulting Engit SEWER FEASIBILITY STUDY
SOUTHERN PINES, NC — MYRTLE BEACH, SC - BEAUFORT, SC #H NUMBER OF HOMES WITHIN SELECTED AREAS
NAGS HEAD, NC — RALEIGH, NC — CHARLOTTE, NC HOUSE COUNT MAP
NUMBER OF SMALL BUSINESSES
2522 S. Crooton Hwy., Suite 2A, Nags Head, North Carolina 27959 NTS56 IN SELECTED AREAS
Phone: (252) 441-3913 - Fax: (252) 441-2100 a NUMBER OF MEDIUM SIZED BUSINESSES
�jMB IN SELECTED AREAS
m
® Hobbs, Upchurch & Associates, P.A. CURRITUCK COUNTY CENTRALIZED
Consulting Engit SEWER FEASIBILITY STUDY
SOUTHERN PINES, NC — MYRTLE BEACH, SC — BEAUFORT, SC
NAGS HEAD, NC — RALEIGH, NC — CHARLOTTE, NC HOUSE COUNT MAP
2522 S. Crooton Hwy., Suite 2A, Nogs Head, North Carolina 27959 NTS
Phone: (252) 441-3913 — Fox: (252) 441-2100
�qil'
mg ❑
�q 51!
1a
�g
ti
11121012 1
yH NUMBER OF HOMES WITHIN SELECTED AREAS
❑NUMBER OF SMALL BUSINESSES
TSB IN SELECTED AREAS
MB NUMBER OF MEDIUM SIZED BUSINESSES
IN SELECTED AREAS
EXHIBIT C
TOPOGRAPHIC SURVEY MAPS
•
Hobbs, Upchurch & Associates, P.A.
Con'1t1ng fnpinefrs
SOUTHERN PINES, NC - WRTLE 8EACH, SC
NACS HEAD. NC - RALEICH, NC - CNARLOrl—r-. NC
2522 S. Craaton Hwy., Sete IA, gays Head, North lanGna 27959
Pone: (252) 441-391J - Fax: (25I) 441-2100
'Currituck County
Centralized Sewer Feasibility Study
TOPOGRAPHY MAP
t�7-,V2 t,4 Y 'SStii f �i+ sa' I T
s r F 9• l� � ! ' ( S '+�t, � � i < /�+ d�p i.,, .tj � 1 1 1 .{ I � I �� 1 ,� � ' 1 � i
!, i; ► I is # co
I X",
IN,
# r
0.1
41 (� RII1 ,.1'1 1 .
N
i 1
rit Pit 1
14
I
r�F`I 1 i; 'r1 _ l•. 1 �t f �..� I,���I� , r I, �#1r� r 14'
a E
0
b11
((J
v/
1 �
CL
d
0
U UNe
i
j �
a
a�i
j
V
a
o
U �
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c
v
_. ._ .. _.... .... .._ ..... .. .... .. .. .... ........ ...... _.. .•�rW.+.NYUYR.e•.......�..4 :..w+a�'si+.� ...r ...v ..... . .. a n. .Iw -
Gbooa
I14
.ji/I,��,r�•� ��-�ij�t� '( r�•jt.� �i.. '� �,� �,�I�'il �.If � I��',r
41
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illI�
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04
r ft ,��,� I'�t �'4 4 r t""' t ro, l ;,'� 4� , 1 .,, '.t 4 �,l,i .' I'i-.t ..� '
4��,�I 41� t ' #r1, ,�,rL't #t {1
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r
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p%F5 • 1 •�� s.-t�Z� �� t �LxT �! !11>• yyl is lks�w.u,...s✓� .� 1,. ►'.
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m m m m m m m m m m m m m m m m m � m
EXHIBIT D
SYSTEM LAYOUT MAPS
V
LEGEND
2"
FORCE
MAIN----------
3"
FORCE
MAIN -- --
4"
FORCE
MAIN
6"
FORCE
MAIN
8"
FORCE
MAIN
12"
FORCE
MAIN
8"
GRAVITY
1111 Hobbs, Upchurch & Associates, P.A.
Consulting Engir
SO(MlEm 111- , tic - UIPILE L GICN, SC - Emumnr, SC
REP NWS HEW. NC - R4LB011, NC - CHARLOH& NC
2522 S Croaton Ilrry, Sill+ 2A` Hogs Ilecd, Nalh Carolina 27959
Platy (252) 441-3913 - r= (252) 411-2100
RANCH LAND=
20,165' OF 2"
12,628' OF 4"
CURRITUCK COUNTY CENTRALIZED
SEWER FEASIBILITY STUDY
SYSTEM LAYOUT MAP
1 "= 1000 FT.
Ili
TULL'S"BAY
COLONY
6, 700' OF 2"
10, 000' OF 4"
�u
EXHIBIT E
ANALYSIS OF SEWER RATES
1
1
1
1
CURRITUCK COUNTY CENTRALIZED SEWER FEASIBILITY STUDY
MOYOCK AREA LAND APPLICATION FACILITY
SCENARIO 1: ENTIRE SERVICE AREA
I. COLLECTION SYSTEM FLOW SUMMARY
SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
13 small businesses @ 2,500 gal/mo=
32,500
gal/mo
1,625
gpd
6 medium businesses @ 7,500 gal/mo=
45,000
gal/mo
2,250
gpd
1 residence @ 4,648 gal/mo =
4,648
gal/mo
155
gpd
Total
82,148
gal/mo
4,030
gpd
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE ALONG HWY 168
10 small businesses @ 2,500 gal/mo=
25,000
gal/mo
1,250
gpd
4 medium businesses @ 7,500 gal/mo=
30,000
gal/mo
1,500
gpd
7 residences @ 4,648 gal/mo=
32,536
gal/mo
1,085
gpd
Total
87,536
gal/mo
3,835
gpd
SECTION FROM SOUTH OF VA LINE TO SOUTH OF ABC STORE ALONG HWY 168
2 small businesses @ 2,500 gal/mo=
5,000
gal/mo
250
gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
Southland Restaurant, shops=
103,967
gal/mo
5,198
gpd
7 residences @ 4,648 gal/mo=
32,536
gal/mo
1,085
gpd
Total
156,503
gal/mo
7,283
gpd
SECTION FROM SOUTH OF ABC STORE TO NORTH OF BAXTER'S LANE ALONG HWY 168
4 small businesses @ 2,500 gal/mo=
10,000
gal/mo
500 gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750 gpd
1 residence @ 4,648 gal/mo=
4,648
gal/mo
155 gpd
Total
29,648
gal/mo
1,405 gpd
SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN' RIDGE ROAD
6 small businesses @ 2,500 gal/mo=
15,000
gal/mo
750 gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750 gpd
6 residences @ 4,648 gal/mo=
27,888
gal/mo
930 gpd
Total
67,888
gal/mo
2,430 gpd
TULLS BAY COLONY RESIDENTIAL AREA & HOMES ALONG TULLS CREEK ROAD
1 small businesses @ 2,500 gal/mo=
2,500
gal/mo
125
gpd
1 medium businesses @ 7,500 gal/mo=
7,500
gal/mo
375
gpd
315 residences @ 4,648 gal/mo=
1,464,120
gal/mo
48,804
gpd
Total
1,474,120
gal/mo
49,304
gpd
SAWYERTOWN ROAD RESIDENTIAL AREA
23 residences @ 4,648 gal/mo=
106,904
gal/mo
3,563
gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
Total
121,904
gal/mo
4,313
gpd
QUAIL RUN/MOYOCK MEADOWS RESIDENTIAL
AREAS
214 residences @ 4,648 gal/mo=
994,672
gal/mo
33,156
gpd
Total
994,672
gal/mo
33,156
gpd
CU0102
08/08/2001
DUCK RIDGE/QUAIL POINT RESIDENTIAL AREAS
1 medium business @ 7,500 gal/mo=
7,500
gal/mo
375
gpd
82 residences @ 4,648 gal/mo=
381,136
gal/mo
12,705
gpd
Total
388,636
gal/mo
13,080
gpd
SOUTH MILLS RD AT HWY 168 TO NEW LAGOON
15 residences @ 4,648 gal/mo=
69,720
gal/mo
2,324
gpd
Total
69,720
gal/mo
2,324
gpd
MOYOCK VILLAGE AREA TO SOUTH MILLS RD
16 residences @ 4,648 gal/mo=
74,368
gal/mo
2,479
gpd
Total
74,368
gal/mo
2,479
gpd
SOUTH LANDING SUBDIVISION AREA
1 small business @ 2,500 gal/mo =
2,500
gal/mo
125
gpd
16 residences @ 4,648 gal/mo=
74,368
gal/mo
2,479
gpd
Total
76,868
gal/mo
2,604
gpd
MOYOCK EAST OF RAILROAD TRACKS
3 small businesses @ 2,500 gal/mo =
7,500
gal/mo
375
gpd
3 medium businesses @ 7,500 gal/mo=
22,500
gal/mo
1,125
gpd
Moyock Elementary School=
94,065
gal/mo
4,703
gpd
17 residences @ 4,648 gal/mo=
79,016
gal/mo
2,634
gpd
Total
203,081
gal/mo
8,837
gpd
RANCHLAND SUBDIVISION
1 medium businesses @ 7,500 gal/mo=
7,500
gal/mo
375
gpd
207 residences @ 4,648 gal/mo=
962,136
gal/mo
32,071
gpd
Total
969,636
gal/mo
32,446
gpd
Total Flow
4,786,728
gal/mo
167,626
gpd (USE 240,000 GPD)
Total Number Users
996
cu0102
08/08/2001
2
'
II. COLLECTION SYSTEM COST ESTIMATE
SECTION FROM LAZY CORNER RD TO SOUTH MILLS
RD ALONG HWY 168
lift station at South Mills Rd
1
LS @
125,000
$
125,000.00
'Main
8" Gravity sewer (0 - 6')
500
LF @
30
$
15,000.00
8" Gravity Sewer (6'- 8')
500
LF @
32 =
$
16,000.00
'8"
8" Gravity Sewer (8'- 10')
Gravity Sewer (10'- 12')
500
100
LF @
LF @
34 =
36 =
$
$
17,000.00
3,600.00
Manhole with ring and cover (0 - 6')
2
EA @
1,800 =
$
3,600.00
Manhole with ring and cover (6'- 8')
1
EA @
2,100 =
$
2,100.00
Manhole with ring and cover (8' - 10') 1 EA @ 2,400 = $ 2,400.00
Manhole with ring and cover (10'- 12') 1 EA @ 2,700 $ 2,700.00
4" service laterals 2 EA @ 500 = $ 1,000.00
service laterals
20
EA @
700 =
$
14,000.00
'6"
Total Construction
$
202,400.00
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE
ALONG HWY 168
'8"
Gravity Sewer (0 - 6')
1,000
LF @
30 =
$
30,000.00
8" Gravity Sewer (6'- 8')
1,000
LF @
32
$
32,000.00
8" Gravity Sewer (8'- 10')
1,000
LF @
34 =
$
34,000.00
8" Gravity Sewer (10'- 12')
500
LF @
36
$
18,000.00
Manhole with ring and cover (0 - 6')
4
EA @
1,800 =
$
7,200.00
Manhole with ring and cover (6'- 8')
2
EA @
2,100 =
$
4,200.00
'Manhole
with ring and cover (8'- 10')
Manhole with ring and cover (10'- 12')
2
3
EA @
EA @
2,400 =
2,700 =
$
$
4,800.00
8,100.00
6" service laterals
15
EA @
700 =
$
10,500.00
4" service laterals
8
EA @
500 =
$
4,000.00
'Lift Station and tie-in 1 LS @ 90,000 = $ 90,000.00
6" PVC Force Main along NC 168 1,750 LF @ 11 $ 19,250.00
12" steel casing installed by bore 50 LF @ 200 = $ 10,000.00
' Total Construction
$
272,050.00
SECTION FROM SOUTH OF VA LINE TO SOUTH OF ABC
STORE ALONG HWY 168
8" Gravity Sewer (0 - 6')
500 LF @
30 =
$
15,000.00
8" Gravity Sewer (6'- 8')
400 LF @
32 =
$
12,800.00
Manhole with ring and cover (0 - 6')
2 EA @
1,800 =
$
3,600.00
Manhole with ring and cover (6'- 8')
2 EA @
2,100 =
$
4,200.00
'6" service laterals 8 EA @ 700 = $ 5,600.00
4" service laterals 8 EA @ 500 = $ 4,000.00
Lift Station and tie-in 1 LS @ 90,000 = $ 90,000.00
6" PVC Force Main along NC 168 2,500 LF @ 11 $ 27,500.00
Total Construction $ 162,700.00
CU0102
08/08/2001 3
I
SECTION FROM SOUTH OF ABC STORE TO NORTH OF BAXTER'S LANE ALONG HWY 168
8" Gravity Sewer (0 - 6')
500
LF @
30 =
$
15,000.00
8" Gravity Sewer (6'- 8')
500
LF @
32 =
$
16,000.00
8" Gravity Sewer (8'- 10')
500
LF @
34 =
$
17,000.00
8" Gravity Sewer (10'- 12')
500
LF @
36 =
$
18,000.00
8" Gravity Sewer (12'- 14')
500
LF @
38 =
$
19,000.00
Manhole with ring and cover (0 - 6')
2
EA @
1,800 =
$
3,600.00
Manhole with ring and cover (6'- 8')
2
EA @
2,100 =
$
4,200.00
Manhole with ring and cover (8' - 10')
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10'- 12')
1
EA @
2,700 =
$
2,700.00
Manhole with ring and cover (12' - 14)
1
EA @
3,000 =
$
3,000.00
6" service laterals
7
EA @
700 =
$
4,900.00
4" service laterals
2
EA @
500 =
$
1,000.00
Total Construction
$
106,800.00
SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN' RIDGE RD
8" Gravity Sewer (0 - 6')
1,000
LF @
30 =
$
30,000.00
8" Gravity Sewer (6'- 8')
1,000
LF @
32 =
$
32,000.00
8" Gravity Sewer (8'- 10')
500
LF @
34 =
$
17,000.00
8" Gravity Sewer (10'- 12')
500
LF @
36 =
$
18,000.00
Manhole with ring and cover (0 - 6')
4
EA @
1,800 =
$
7,200.00
Manhole with ring and cover (6'- 8')
3
EA @
2,100 =
$
6,300.00
Manhole with ring and cover (8'- 10')
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10' - 12')
2
EA @
2,700 =
$
5,400.00
16" steel casing installed by bore
100
LF @
225
$
22,500.00
6" service laterals
9
EA @
700 =
$
6,300.00
4" service laterals
7
EA @
500 =
$
3,500.00
Lift Station and tie-in
1
LS @
90,000 =
$
90,000.00
6" PVC Force Main along NC 168
50
LF @
11 =
$
550.00
6" dir bore under Shingle Landing Creek
100
LF @
150
$
15,000.00
Total Construction
$
266,150.00
TULLS BAY COLONY RESIDENTIAL AREA & HOMES ALONG TULLS CREEK ROAD
2" PVC Force Main
6,700
LF @
7 =
$
43,550.00
3" PVC Force Main
2,800
LF @
9 =
$
25,200.00
4" PVC Force Main
10,000
LF @
9 =
$
90,000.00
6" PVC Force Main
21,000
LF @
11 =
$
231,000.00
8" PVC Force Main
2,418
LF @
13
= $
31,434.00
Residential Pump Station (316 X 66%)
209
LS @
5,500
= $
1,149,500.00
Commercial Pump Station
3
LS @
7,500
= $
22,500.00
Total Construction
$
1,593,184.00
SAWYERTOWN ROAD RESIDENTIAL AREA
4" PVC Force Main
2,900
LF @
9 =
$
26,100.00
8" PVC Force Main
1,693
LF @
13 =
$
22,009.00
Residential Pump Station
24
LS @
5,500 =
$
132,000.00
Commercial Pump Station
3
LS @
7,500 =
$
22,500.00
Total Construction
$
180,109.00
CU0102
08/08/2001 4
QUAIL RUN/MOYOCK MEADOWS RESIDENTIAL AREAS
'
2" PVC Force Main
10,752
LF @
7 -
$
69,888.00
4" PVC Force Main
6,083
LF @
9 =
$
54,747.00
PVC Force Main
2,527
LF @
11 =
$
27,797.00
'6"
Residential Pump Station (214 X 66%)
141
LS @
5,500 =
$
775,500.00
Total Construction
$
927,932.00
RIDGE/QUAIL POINT RESIDENTIAL AREAS
'DUCK
2" PVC Force Main
5,053
LF @
7 =
$
32,844.50
4" PVC Force Main
9,091
LF @
9 =
$
81,819.00
PVC Force Main
8,660
LF @
11
$
95,260.00
'6"
Residential Pump Station (83 X 75%)
62
LS @
5,500 =
$
341,000.00
Commercial Pump Station
2
LS @
7,500 =
$
15,000.00
Total Construction
$
565,923.50
'
SOUTH MILLS ROAD AT HWY 168 TO NEW LAGOON
12" PVC Force Main
2,856
LF @
25 =
$
71,400.00
Residential Pump Station
16
LS @
5,500 =
$
88,000.00
Total Construction
$
159,400.00
'MOYOCK
VILLAGE AREA TO SOUTH MILLS ROAD
2" PVC Force Main
1,053
LF @
7 =
$
6,844.50
4" PVC Force Main
572
LF @
9 =
$
5,148.00
Residential Pump Station
17
LS @
5,500 =
$
93,500.00
'
Total Construction
$
105,492.50
SOUTH LANDING SUBDIVISION AREA
2" PVC Force Main
1,471
LF @
7 =
$
9,561.50
4" PVC Force Main
473
LF @
9 =
$
4,257.00
Residential Pump Station
17
LS @
5,500 =
$
93,500.00
Pump Station
2
LS @
7,500 =
$
15,000.00
'Commercial
Total Construction
$
122,318.50
MOYOCK EAST OF RAILROAD TRACKS
PVC Force Main
1,075
LF @
7 =
$
6,987.50
'2"
8" PVC Force Main
1,789
LF @
13 =
$
23,257.00
16" steel casing installed by bore
175
LF @
225 =
$
39,375.00
'Residential
Pump Station
Commercial Pump Station
18
9
LS @
LS @
5,500 =
7,500 =
$
$
99,000.00
67,500.00
Total Construction
$
236,119.50
'
RANCHLAND SUBDIVISION
2" PVC Force Main
20,165
LF @
7 -
$
131,072.50
4" PVC Force Main
12,628
LF @
9 =
$
113,652.00
PVC Force Main
18,205
LF @
11
$
200,255.00
'6"
12" steel casing installed by bore
200
LF @
200 =
$
40,000.00
Residential Pump Station (208 X 75%)
156
LS @
5,500 =
$
858,000.00
'Commercial
Pump Station
Total Construction
2
LS @
7,500 =
$
$
15,000.00
1,367,979.50
Total Collection System Construction Cost
$
6,248,558.50
CU0102
'
08/08/2001
5
'III. WWTP COST ESTIMATE
lagoon and piping
lagoon liner
effluent pump station and generator
spray system
crop planting
' miscellaneous equipment(tractor, rake, and balers)
miscellaneous equipment (disinfection)
Total Construction
' IV SUMMARY OF COSTS
' Collection System Construction
Treatment System Construction
TOTAL CONSTRUCTION
Engineering
Design (8%)
' TOTAL ENGINEERING Inspection (6%)
'
LAND
CONTINGENCIES
GRAND TOTAL
V. EXPENDITURES
'
Debt Service
Salaries
'O
& M @ $1.20/1,000 gal
O & M PS @ $500/PS/10years
Total
'
08/08/2001
23 acres@
1.25 /sf
$
1,252,303.19
23 acres@
0.75 /sf
$
751,381.91
LS
$
350,000.00
55 acres@
7,500.00 /acre
$
412,458.80
55 acres@
1,000 /acre
$
54,994.51
LS
$
50,000.00
LS
$
50,000.00
$
2,921,138.41
130 acres@ $
11
6,248,658.50
$2,921,138.41
$ 9,169,696.91
733,576.76
550,181.81
$ 1,283,757.57
4,000.00 $ 520,000.00
$ 916,969.69
USDA RD Loan
20 years @ 6.00%
$ 1,036,844.99
$ 60,000.00
$ 68,928.88
$ 33,900.00
$ 1,199,673.87
$ 11,890,424.17
CU0102
VI. PROJECTED SEWER RATES
100% Participation
RESIDENTIAL
4,648 gal/mo
Assume base rate per month = $20.00
Rate/1,000 gal
$ 16.72
Avg. mo. Bill
$ 97.73
MEDIUM BUSINESS
7,500 gal/mo
Assume base rate per month = $20.00
Rate/1,000 gal
$ 16.72
Avg. mo. Bill
$ 145.43
SMALL BUSINESS
2,500 gal/mo
$ 16.72
$ 61.81
LARGE BUSINESS
100,000 gal/mo
$ 16.72
$ 1,692.39
CU0102
08/08/2001 7
L
L
CURRITUCK COUNTY CENTRALIZED SEWER FEASIBILITY STUDY
MOYOCK AREA LAND APPLICATION FACILITY
SCENARIO 2: EXCLUDING TULL'S BAY COLONY AND RANCHLAND
I. COLLECTION SYSTEM FLOW SUMMARY
SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
13 small businesses @ 2,500 gal/mo=
32,500
gal/mo
1,625
gpd
6 medium businesses @ 7,500 gal/mo=
45,000
gal/mo
2,250
gpd
1 residence @ 4,648 gal/mo =
4,648
gal/mo
155
gpd
Total
82,148
gal/mo
4,030
gpd
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE
ALONG HWY 168
10 small businesses @ 2,500 gal/mo=
25,000
gal/mo
1,250
gpd
4 medium businesses @ 7,500 gal/mo=
30,000
gal/mo
1,500
gpd
7 residences @ 4,648 gal/mo=
32,536
gal/mo
1,085
gpd
Total
87,536
gal/mo
3,835
gpd
SECTION FROM SOUTH OF VA LINE TO SOUTH OF ABC STORE ALONG HWY 168
2 small businesses @ 2,500 gal/mo=
5,000
gal/mo
250
gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
Southland Restaurant, shops=
103,967
gal/mo
5,198
gpd
7 residences @ 4,648 gal/mo=
32,536
gal/mo
1,085
gpd
Total
156,503
gal/mo
7,283
gpd
SECTION FROM SOUTH OF ABC STORE TO NORTH OF BAXTER'S LANE ALONG HWY 168
4 small businesses @ 2,500 gal/mo=
10,000
gal/mo
500 gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750 gpd
1 residence @ 4,648 gal/mo=
4,648
gal/mo
155 gpd
Total
29,648
gal/mo
1,405 gpd
SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN' RIDGE ROAD
6 small businesses @ 2,500 gal/mo= 15,000 gal/mo
2 medium businesses @ 7,500 gal/mo= 15,000 gal/mo
6 residences @ 4,648 gal/mo= 27,888 gal/mo
Total 57,888 gal/mo
' SAWYERTOWN ROAD RESIDENTIAL AREA
23 residences @ 4,648 gal/mo= 106,904 gal/mo
2 medium businesses @ 7,500 gal/mo= 15,000 gal/mo
' Total 121,904 gal/mo
QUAIL RUN/MOYOCK MEADOWS RESIDENTIAL AREAS
214 residences @ 4,648 gal/mo= 994,672 gal/mo
Total 994,672 gal/mo
'DUCK RIDGE/QUAIL POINT RESIDENTIAL AREAS
1 medium business @ 7,500 gal/mo= 7,500 gal/mo
82 residences @ 4,648 gal/mo 381,136 gal/mo
Total 388,636 gal/mo
750 gpd
750 gpd
930 gpd
2,430 gpd
3,563 gpd
750 gpd
4,313 gpd
33,156 gpd
33,156 gpd
375 gpd
12,705 gpd
13,080 gpd
CU0102
' 08/08/2001 1
1
'SOUTH MILLS RD AT HWY 168 TO NEW LAGOON
15 residences @ 4,648 gal/mo=
Total
'MOYOCK VILLAGE AREA TO SOUTH MILLS RD
16 residences @ 4,648 gal/mo=
Total
' SOUTH LANDING SUBDIVISION AREA
1 small business @ 2,500 gal/mo =
'16 residences @ 4,648 gal/mo=
Total
'MOYOCK EAST OF RAILROAD TRACKS
3 small businesses @ 2,500 gal/mo =
3 medium businesses @ 7,500 gal/mo=
Moyock Elementary School=
' 17 residences @ 4,648 gal/mo=
Total
' Total Flow
Total Number Users
1
' 08/08/2001
69,720 gal/mo 2,324 gpd
69,720 gal/mo 2,324 gpd
74,368 gal/mo 2,479 gpd
74,368 gal/mo 2,479 gpd
2,500 gal/mo 125 gpd
74,368 gal/mo 2,479 gpd
76,868 gal/mo 2,604 gpd
7,500
gal/mo
375
gpd
22,500
gal/mo
1,125
gpd
94,065
gal/mo
4,703
gpd
79,016
gal/mo
2,634
gpd
203,081
gal/mo
8,837
gpd
2,342,972 gal/mo 86,775 gpd (USE 120,000 GPD)
471
2
CU0102
r
k
a
L
r
II. COLLECTION SYSTEM COST ESTIMATE
SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
Main lift station at South Mills Rd
1
LS @
125,000 =
$
125,000.00
8" Gravity sewer (0 - 6')
500
LF @
30 =
$
15,000.00
8" Gravity Sewer (6'- 8')
500
LF @
32 =
$
16,000.00
8" Gravity Sewer (8' - 10')
500
LF @
34 =
$
17,000.00
8" Gravity Sewer (10'- 12')
100
LF @
36 =
$
3,600.00
Manhole with ring and cover (0 - 6')
2
Fro @
1,800 =
$
3,600.00
Manhole with ring and cover (6'- 8')
1
EA @
2,100 =
$
2,100.00
Manhole with ring and cover (8' - 10')
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10' - 12')
1
EA @
2,700 =
$
2,700.00
4" service laterals
2
EA @
500 =
$
1,000.00
6" service laterals
20
EA @
700 =
$
14,000.00
Total Construction
$
202,400.00
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE ALONG HWY 168
8" Gravity Sewer (0 - 6')
1,000
LF @
30 =
$
30,000.00
8" Gravity Sewer (6'- 8')
1,000
LF @
32 =
$
32,000.00
8" Gravity Sewer (8'- 10')
1,000
LF @
34 =
$
34,000.00
8" Gravity Sewer (10'- 12')
500
LF @
36 =
$
18,000.00
Manhole with ring and cover (0 - 6')
4
Fro @
1,800 =
$
7,200.00
Manhole with ring and cover (6'- 8')
2
EA @
2,100 =
$
4,200.00
Manhole with ring and cover (8'- 10')
2
EA @
2,400 =
$
4,800.00
Manhole with ring and cover (10' - 12)
3
Fro @
2,700 =
$
8,100.00
6" service laterals
15
EA @
700 =
$
10,500.00
4" service laterals
8
EA @
500 =
$
4,000.00
Lift Station and tie-in
1
LS @
90,000 =
$
90,000.00
6" PVC Force Main along NC 168
1,750
LF @
11 =
$
19,250.00
12" steel casing installed by bore
50
LF @
200 =
$
10,000.00
Total Construction
$
272,050.00
SECTION FROM SOUTH OF VA LINE TO SOUTH OF ABC STORE ALONG HWY 168
8" Gravity Sewer (0 - 6')
500
LF @
30 =
$
15,000.00
8" Gravity Sewer (6'- 8')
400
LF @
32 =
$
12,800.00
Manhole with ring and cover (0 - 6')
2
Fro @
1,800 =
$
3,600.00
Manhole with ring and cover (6'- 8')
2
EA @
2,100 =
$
4,200.00
6" service laterals
8
EA @
700 =
$
5,600.00
4" service laterals
8
EA @
500 =
$
4,000.00
Lift Station and tie-in
1
LS @
90,000 =
$
90,000.00
6" PVC Force Main along NC 168
2,500
LF @
11 =
$
27,500.00
Total Construction
$
162,700.00
CU0102
' 08/08/2001 3
SECTION FROM SOUTH OF ABC STORE TO NORTH OF BAXTER'S LANE ALONG HWY 168
8" Gravity Sewer (0 - 6')
500
LF @
30 =
$
15,000.00
8" Gravity Sewer (6'- 8')
500
LF @
32 =
$
16,000.00
Gravity Sewer (8' - 10')
500
LF @
34
$
17,000.00
'8"
8" Gravity Sewer (10' - 12')
500
LF @
36
$
18,000.00
8" Gravity Sewer (12' - 14')
500
LF @
38
$
19,000.00
Manhole with ring and cover (0 - 6')
2
EA @
1,800 =
$
3,600.00
'
Manhole with ring and cover (6'- 8')
2
EA @
2,100
$
4,200.00
Manhole with ring and cover (8'- 10')
1
EA @
2,400
$
2,400.00
Manhole with ring and cover (10' - 12')
1
EA @
2,700 =
$
2,700.00
with ring and cover (12' - 14')
1
EA @
3,000
$
3,000.00
'Manhole
6" service laterals
7
EA @
700
$
4,900.00
4" service laterals
2
EA @
500 =
$
1,000.00
Total Construction
$
106,800.00
'
SECTION FROM SOUTH MILLS RD TO 500' SOUTH
OF PUDDIN' RIDGE RD
8" Gravity Sewer (0 - 6')
1,000
LF @
30 =
$
30,000.00
Gravity Sewer (6'- 8')
1,000
LF @
32
$
32,000.00
'8"
8" Gravity Sewer (8' -10')
500
LF @
34
$
17,000.00
8" Gravity Sewer (10' - 12')
500
LF @
36 =
$
18,000.00
with ring and cover (0 - 6')
4
EA @
1,800
$
7,200.00
'Manhole
Manhole with ring and cover (6'- 8')
3
EA @
2,100
$
6,300.00
Manhole with ring and cover (8'- 10')
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10'- 12')
2
EA @
2,700 =
$
5,400.00
'16"
steel casing installed by bore
100
LF @
225
$
22,500.00
6" service laterals
9
EA @
700 —
$
6,300.00
4" service laterals
7
EA @
500 =
$
3,500.00
Station and tie-in
1
LS @
90,000
$
90,000.00
'Lift
6" PVC Force Main along NC 168
50
LF @
11
$
550.00
6" dir bore under Shingle Landing Creek
100
LF @
150
$
15,000.00
Total Construction
$
256,150.00
SAWYERTOWN ROAD RESIDENTIAL AREA
4" PVC Force Main
2,900
LF @
9
= $
26,100.00
PVC Force Main
1,693
LF @
13
$
22,009.00
'8"
Residential Pump Station
24
LS @
5,500
$
132,000.00
Commercial Pump Station
3
LS @
7,500
= $
22,500.00
'
Total Construction
$
180,109.00
QUAIL RUN/MOYOCK MEADOWS RESIDENTIAL AREAS
2" PVC Force Main
10,752
LF @
7
= $
69,888.00
'4"
PVC Force Main
6,083
LF @
9
$
54,747.00
6" PVC Force Main
2,527
LF @
11
$
27,797.00
Residential Pump Station (214 X 66%)
141
LS @
5,500
= $
775,500.00
I
Total Construction $ 927,932.00
CU0102
' 08/08/2001 4
DUCK RIDGE/QUAIL POINT RESIDENTIAL AREAS
2" PVC Force Main
5,053
LF @
7 =
$
32,844.50
4" PVC Force Main
9,091
LF @
9 =
$
81,819.00
6" PVC Force Main
8,660
LF @
11 =
$
95,260.00
Residential Pump Station (83 X 75%)
62
LS @
5,500 =
$
341,000.00
Commercial Pump Station
2
LS @
7,500 =
$
15,000.00
Total Construction
$
665,923.50
SOUTH MILLS ROAD AT HWY 168 TO NEW LAGOON
12" PVC Force Main
2,856
LF @
25 =
$
71,400.00
Residential Pump Station
16
LS @
5,500 =
$
88,000.00
Total Construction
$
159,400.00
MOYOCK VILLAGE AREA TO SOUTH MILLS ROAD
2" PVC Force Main
1,053
LF @
7 =
$
6,844.50
4" PVC Force Main
572
LF @
9 =
$
5,148.00
Residential Pump Station
17
LS @
5,500 =
$
93,500.00
Total Construction
$
105,492.50
SOUTH LANDING SUBDIVISION AREA
2" PVC Force Main
1,471
LF @
7 =
$
9,561.50
4" PVC Force Main
473
LF @
9 =
$
4,257.00
Residential Pump Station
17
LS @
5,500 =
$
93,500.00
Commercial Pump Station
2
LS @
7,500 =
$
15,000.00
Total Construction
$
122,318.60
MOYOCK EAST OF RAILROAD TRACKS
2" PVC Force Main
1,075
LF @
7 =
$
6,987.50
8" PVC Force Main
1,789
LF @
13 =
$
23,257.00
16" steel casing installed by bore
175
LF @
225 =
$
39,375.00
Residential Pump Station
18
LS @
5,500 =
$
99,000.00
Commercial Pump Station
9
LS @
7,500 =
$
67,500.00
Total Construction
$
236,119.50
Total Collection System Construction Cost
$
3,297,395.00
III. WWTP COST ESTIMATE
lagoon and piping
12
acres@
1.25 /sf
$
641,193.45
lagoon liner
12
acres@
0.75 /sf
$
384,716.07
effluent pump station and generator
LS
$
350,000.00
spray system
28
acres@
7,500.00 /acre
$
211,183.59
crop planting
28
acres@
1,000 /acre
$
28,157.81
miscellaneous equipment(tractor, rake, and balers)
LS
$
50,000.00
miscellaneous equipment (disinfection)
LS
$
50,000.00
Total Construction
$
1,715,250.93
CU0102
08/08/2001
4�
' IV SUMMARY OF COSTS
Collection System Construction
' Treatment System Construction
TOTAL CONSTRUCTION
' Engineering
Design (8%)
Inspection (6%)
ENGINEERING
'TOTAL
LAND
CONTINGENCIES
GRAND TOTAL
'
V. EXPENDITURES
'
Debt Service
Salaries
O & M @ $1.20/1,000 gal
'
O & M PS @ $500/PS/10years
Total
'
08/08/2001
$
3,297,395.00
$
1,715,250.93
$
5,012,645.93
$
401,011.67
$
300,768.76
$
701,770.43
77 acres@ $
4,000.00
$
308,000.00
$
601,264.69
6
USDA RD Loan
20 years @ 6.00%
$ 568,864.98
$ 60,000.00
$ 33,738.80
$ 15,400.00
$ 678,003.78
$ 6,523,680.95
CU0102
VI. PROJECTED SEWER RATES
100% Participation
With USDA RD Loan, 20 years @ 6.00%
RESIDENTIAL
SMALL BUSINESS
4,648 gal/mo
2,500 gal/mo
Assume base rate per month = $20.00
Rate/1,000 gal
$
20.09
$
20.09
Avg. mo. Bill
$
113.40
$
70.24
MEDIUM BUSINESS
LARGE BUSINESS
7,500 gal/mo
100,000 gal/mo
Assume base rate per month = $20.00
Rate/1,000 gal
$
20.09
$
20.09
Avg. mo. Bill
$
170.71
$
2,029.43
CU0102
08/08/2001 7
' CURRITUCK COUNTY CENTRALIZED SEWER FEASIBILITY STUDY
MOYOCK AREA LAND APPLICATION FACILITY
SCENARIO 3: EXCLUDING TULL'S BAY COLONY, RANCHLAND, AND DUCK RIDGE
I. COLLECTION SYSTEM FLOW SUMMARY
'SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
13 small businesses @ 2,500 gal/mo= 32,500 gal/mo 1,625 gpd
6 medium businesses @ 7,500 gal/mo= 45,000 gal/mo 2,250 gpd
1 residence @ 4,648 gal/mo = 4,648 gal/mo 155 gpd
Total 82,148 gal/mo 4,030 gpd
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE ALONG HWY 168
'10
small businesses @ 2,500 gal/mo=
25,000
gal/mo
1,250
gpd
4 medium businesses @ 7,500 gal/mo=
30,000
gal/mo
1,500
gpd
7 residences @ 4,648 gal/mo=
32,536
gal/mo
1,085
gpd
Total
87,636
gal/mo
3,835
gpd
SECTION FROM SOUTH OF VA LINE TO SOUTH OF ABC STORE ALONG HWY 168
'2
small businesses @ 2,500 gal/mo=
2 medium businesses @ 7,500 gal/mo=
5,000
15,000
gal/mo
gal/mo
250
750
gpd
gpd
Southland Restaurant, shops=
103,967
gal/mo
5,198
gpd
7 residences @ 4,648 gal/mo=
32,536
gal/mo
1,085
gpd
Total
166,503
gal/mo
7,283
gpd
SECTION FROM SOUTH OF ABC STORE TO NORTH OF BAXTER'S LANE ALONG HWY 168
4 small businesses @ 2,500 gal/mo=
10,000
gal/mo
500
gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
1 residence @ 4,648 gal/mo=
4,648
gal/mo
155
gpd
Total
29,648
gal/mo
1,405
gpd
'
SECTION FROM SOUTH MILLS RD TO 500' SOUTH
OF PUDDIN'
RIDGE ROAD
6 small businesses @ 2,500 gal/mo=
15,000
gal/mo
750
gpd
medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
'2
6 residences @ 4,648 gal/mo=
27,888
gal/mo
930
gpd
Total
67,888
gal/mo
2,430
gpd
'
SAWYERTOWN ROAD RESIDENTIAL AREA
23 residences @ 4,648 gal/mo=
106,904
gal/mo
3,563
gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
Total
121,904
gal/mo
4,313
gpd
QUAIL RUN/MOYOCK MEADOWS RESIDENTIAL AREAS
residences @ 4,648 gal/mo=
994,672
gal/mo
33,156
gpd
'214
Total
994,672
gal/mo
33,166
gpd
'SOUTH
MILLS RD AT HWY 168 TO NEW LAGOON
15 residences @ 4,648 gal/mo=
69,720
gal/mo
2,324
gpd
Total
69,720
gal/mo
2,324
gpd
CU0102
08/08/2001 1
'MOYOCK VILLAGE AREA TO SOUTH MILLS RD
16 residences @ 4,648 gal/mo=
Total
SOUTH LANDING SUBDIVISION AREA
1 small business @ 2,500 gal/mo =
16 residences @ 4,648 gal/mo=
Total
MOYOCK EAST OF RAILROAD TRACKS
' 3 small businesses @ 2,500 gal/mo =
3 medium businesses @ 7,500 gal/mo=
Moyock Elementary School=
17 residences @ 4,648 gal/mo=
Total
'Total Flow
Total Number Users
08/08/2001
74,368 gal/mo 2,479 gpd
74,368 gal/mo 2,479 gpd
2,500 gal/mo 125 gpd
74,368 gal/mo 2,479 gpd
76,868 gal/mo 2,604 gpd
7,500
gal/mo
375
gpd
22,500
gal/mo
1,125
gpd
94,065
gal/mo
4,703
gpd
79,016
gal/mo
2,634
gpd
203,081
gal/mo
8,837
gpd
1,954,336 gal/mo 72,695 gpd (USE 102,000 GPD)
388
2
CU0102
n
11. COLLECTION SYSTEM COST ESTIMATE
SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
Main lift station at South Mills Rd
1
LS @
125,000 =
$
125,000.00
8" Gravity sewer (0 - 6')
500
LF @
30 =
$
15,000.00
8" Gravity Sewer (6'- 8')
500
LF @
32 =
$
16,000.00
8" Gravity Sewer (8' - 10')
500
LF @
34 =
$
17,000.00
8" Gravity Sewer (10'- 12)
100
LF @
36 =
$
3,600.00
Manhole with ring and cover (0 - 6')
2
Fro @
1,800 =
$
3,600.00
Manhole with ring and cover (6'- 8')
1
Fro @
2,100 =
$
2,100.00
Manhole with ring and cover (8'- 10')
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10'- 12')
1
EA @
2,700 =
$
2,700.00
4" service laterals
2
EA @
500 =
$
1,000.00
6" service laterals
20
EA @
700 =
$
14,000.00
Total Construction
$
202,400.00
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE ALONG HWY 168
8" Gravity Sewer (0 - 6')
1,000
LF @
30 =
$
30,000.00
8" Gravity Sewer (6'- 8')
1,000
LF @
32 =
$
32,000.00
8" Gravity Sewer (8'- 10')
1,000
LF @
34 =
$
34,000.00
8" Gravity Sewer (10'- 12)
500
LF @
36 =
$
18,000.00
Manhole with ring and cover (0 - 6')
4
Fro @
1,800 =
$
7,200.00
Manhole with ring and cover (6'- 8')
2
EA @
2,100 =
$
4,200.00
Manhole with ring and cover (8' - 10')
2
EA @
2,400 =
$
4,800.00
Manhole with ring and cover (10'- 12')
3
EA @
2,700 =
$
8,100.00
6" service laterals
15
EA @
700 =
$
10,500.00
4" service laterals
8
EA @
500 =
$
4,000.00
Lift Station and tie-in
1
LS @
90,000 =
$
90,000.00
6" PVC Force Main along NC 168
1,750
LF @
11 =
$
19,250.00
12" steel casing installed by bore
50
LF @
200 =
$
10,000.00
Total Construction
$
272,050.00
SECTION FROM SOUTH OF VA LINE TO SOUTH OF ABC STORE ALONG HWY 168
8" Gravity Sewer (0 - 6')
500
LF @
30 =
$
15,000.00
8" Gravity Sewer (6'- 8')
400
LF @
32 =
$
12,800.00
Manhole with ring and cover (0 - 6')
2
EA @
1,800 =
$
3,600.00
Manhole with ring and cover (6'- 8')
2
EA @
2,100 =
$
4,200.00
6" service laterals
8
EA @
700 =
$
5,600.00
4" service laterals
8
EA @
500 =
$
4,000.00
Lift Station and tie-in
1
LS @
90,000 =
$
90,000.00
6" PVC Force Main along NC 168
2,500
LF @
11 =
$
27,500.00
Total Construction
$
162,700.00
CU0102
' 08/08/2001 3
' SECTION FROM SOUTH OF ABC STORE TO NORTH OF BAXTER'S LANE ALONG HWY 168
'
8" Gravity Sewer (0 - 6')
500
LF @
30 =
$
15,000.00
8" Gravity Sewer (6'- 8')
500
LF @
32 =
$
16,000.00
'8" Gravity Sewer (8'- 10')
8" Gravity Sewer (10'- 12')
500
500
LF @
LF @
34
36
$
$
17,000.00
18,000.00
8" Gravity Sewer (12' - 14')
500
LF @
38
$
19,000.00
Manhole with ring and cover (0 - 6')
2
EA @
1,800 =
$
3,600.00
with ring and cover (12'- 14')
1
EA @
3,000 =
$
3,000.00
'Manhole
6" service laterals
7
EA @
700 =
$
4,900.00
4" service laterals
2
EA @
500 =
$
1,000.00
Construction
$
106,800.00
'Total
SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN' RIDGE RD
8" Gravity Sewer (0 - 6')
1,000
LF @
30 =
$
30,000.00
Gravity Sewer (6'- 8')
1,000
LF @
32 =
$
32,000.00
'8"
8" Gravity Sewer (8' - 10')
500
LF @
34 =
$
17,000.00
8" Gravity Sewer (10'- 12')
500
LF @
36 =
$
18,000.00
Manhole with ring and cover (0 - 6')
4
EA @
1,800 =
$
7,200.00
Manhole with ring and cover (6'- 8')
3
EA @
2,100
$
6,300.00
Manhole with ring and cover (8'- 10')
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10'- 12')
2
EA @
2,700 =
$
5,400.00
'
16" steel casing installed by bore
100
LF @
225
$
22,500.00
6" service laterals
9
EA @
700 _
$
6,300.00
4" service laterals
7
EA @
500 =
$
3,500.00
Station and tie-in
1
LS @
90,000 =
$
90,000.00
'Lift
6" PVC Force Main along NC 168
50
LF @
11
$
550.00
6" dir bore under Shingle Landing Creek
100
LF @
150
$
15,000.00
'Total
Construction
$
256,150.00
SAWYERTOWN ROAD RESIDENTIAL AREA
4" PVC Force Main
2,900
LF @
9 =
$
26,100.00
PVC Force Main
1,693
LF @
13 =
$
22,009.00
'8"
Residential Pump Station
24
LS @
5,500
$
132,000.00
Commercial Pump Station
3
LS @
7,500 =
$
22,500.00
'
Total Construction
$
180,109.00
QUAIL RUN/MOYOCK MEADOWS RESIDENTIAL AREAS
2" PVC Force Main
10,752
LF @
7 =
$
69,888.00
4" PVC Force Main
6,083
LF @
9 =
$
54,747.00
6" PVC Force Main
2,527
LF @
11
$
27,797.00
Residential Pump Station (214 X 66%)
141
LS @
5,500 =
$
775,500.00
Total Construction
$
927,932.00
SOUTH MILLS ROAD AT HWY 168 TO NEW LAGOON
'12"
PVC Force Main
Residential Pump Station
2,856
16
LF @
LS @
25 =
5,500 =
$
$
71,400.00
88,000.00
Total Construction
$
159,400.00
CU0102
' 08/08/2001 4
'MOYOCK VILLAGE AREA TO SOUTH MILLS ROAD
2" PVC Force Main
4" PVC Force Main
' Residential Pump Station
Total Construction
SOUTH LANDING SUBDIVISION AREA
'2" PVC Force Main
4" PVC Force Main
Residential Pump Station
Commercial Pump Station
Total Construction
MOYOCK EAST OF RAILROAD TRACKS
2" PVC Force Main
8" PVC Force Main
16" steel casing installed by bore
' Residential Pump Station
Commercial Pump Station
Total Construction
Total Collection System Construction Cost
III. WWTP COST ESTIMATE
'lagoon and piping
lagoon liner
effluent pump station and generator
spray system
' crop planting
miscellaneous equipment(tractor, rake, and balers)
miscellaneous equipment (disinfection)
Total Construction
1,053
LF @
7 =
$
6,844.50
572
LF @
9 =
$
5,148.00
17
LS @
5,500 =
$
93,500.00
$
105,492.50
1,471
LF @
7 =
$
9,561.50
473
LF @
9 =
$
4,257.00
17
LS @
5,500 =
$
93,500.00
2
LS @
7,500 =
$
15,000.00
$
122,318.50
1,075
LF @
7 =
$
6,987.50
1,789
LF @
13 =
$
23,257.00
175
LF @
225 =
$
39,375.00
18
LS @
5,500 =
$
99,000.00
9
LS @
7,500 =
$
67,500.00
$
236,119.60
$ 2,731,471.50
10 acres@
1.25 /sf
$
543,419.62
10 acres@
0.75 /sf
$
326,051.77
LS
$
350,000.00
24 acres@
7,500.00 /acre
$
178,980.78
24 acres@
1,000 /acre
$
23,864.10
LS
$
50,000.00
LS
$
50,000.00
$
1,522,316.29
CU0102
' 08/08/2001
5
' IV SUMMARY OF COSTS
Collection System Construction
Treatment System Construction
TOTAL CONSTRUCTION
' Engineering
Design (8%)
Inspection (6%)
'TOTAL ENGINEERING
LAND
' CONTINGENCIES
' GRAND TOTAL
' V. EXPENDITURES
Debt Service
Salaries
O & M @ $1.20/1,000 gal
O & M PS @ $500/PS/10years
Total
$
2,731,471.50
$
1,522,316.29
$
4,253,787.79
$
340,303.02
$
255,227.27
$
595,530.29
63 acres@ $
4,000.00
$
252,000.00
$
425,378.78
USDA RD Loan
20 years @ 6.00%
$ 481,927.97
$ 60,000.00
$ 28,142.44
$ 12,200.00
$ 582,270.40
$ 5,526,696.85
000102
' 08/08/2001
6
' VI. PROJECTED SEWER RATES
100% Participation
With USDA RD Loan, 20 years @ 6.00%
' Assume base rate per month = $20.00
Rate/1,000 gal
Avg. mo. Bill
Assume base rate per month = $20.00
Rate/1,000 gal
Avg. mo. Bill
' 08/08/2001
RESIDENTIAL
4,648 gal/mo
$
20.86
$
116.95
MEDIUM
BUSINESS
7,500 gal/mo
$
20.86
$
176.43
7
SMALL BUSINESS
2,500 gal/mo
$ 20.86
$ 72.14
LARGE BUSINESS
100,000 gal/mo
$ 20.86
$ 2,105.75
CU0102
' CURRITUCK COUNTY CENTRALIZED SEWER FEASIBILITY STUDY
' MOYOCK AREA LAND APPLICATION FACILITY
SCENARIO 4: EXCL TULL'S BAY, RANCHLAND, DUCK RIDGE (PS AT SOUTHLAND)
' I. COLLECTION SYSTEM FLOW SUMMARY
' SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
PUMP STATION AND FORCE MAIN SERVING SOUTHLAND
Southland Restaurant, shops= 103,967 gal/mo 5,198 gpd
Total 103,967 gal/mo 5,198 gpd
13 small businesses @ 2,500 gal/mo=
32,500
gal/mo
1,625
gpd
6 medium businesses @ 7,500 gal/mo=
45,000
gal/mo
2,250
gpd
1 residence @ 4,648 gal/mo =
4,648
gal/mo
155
gpd
Total
82,148
gal/mo
4,030
gpd
'SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN' RIDGE ROAD
6 small businesses @ 2,500 gal/mo= 15,000 gal/mo 750 gpd
2 medium businesses @ 7,500 gal/mo= 15,000 gal/mo 750 gpd
'6 residences @ 4,648 gal/mo= 27,888 gal/mo 930 gpd
Total 67,888 gal/mo 2,430 gpd
SAWYERTOWN ROAD RESIDENTIAL AREA
'23
residences @ 4,648 gal/mo=
106,904
gal/mo
3,563
gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
Total
121,904
gal/mo
4,313
gpd
'
QUAIL RUN/MOYOCK MEADOWS RESIDENTIAL AREAS
214 residences @ 4,648 gal/mo=
994,672
gal/mo
33,156
gpd
994,672
gal/mo
33,156
gpd
'Total
SOUTH MILLS RD AT HWY 168 TO NEW LAGOON
15 residences @ 4,648 gal/mo=
69,720
gal/mo
2,324
gpd
'
Total
69,720
gal/mo
2,324
gpd
MOYOCK VILLAGE AREA TO SOUTH MILLS RD
residences @ 4,648 gal/mo=
74,368
gal/mo
2,479
gpd
'16
Total
74,368
gal/mo
2,479
gpd
SOUTH LANDING SUBDIVISION AREA
'1
small business @ 2,500 gal/mo =
2,500
gal/mo
125
gpd
16 residences @ 4,648 gal/mo=
74,368
gal/mo
2,479
gpd
Total
76,868
gal/mo
2,604
gpd
CU0102
' 08/08/2001 1
MOYOCK EAST OF RAILROAD TRACKS
3 small businesses @ 2,500 gal/mo =
7,500
gal/mo
375
gpd
3 medium businesses @ 7,500 gal/mo=
22,500
gal/mo
1,125
gpd
Moyock Elementary School=
94,065
gal/mo
4,703
gpd
17 residences @ 4,648 gal/mo=
79,016
gal/mo
2,634
gpd
Total
203,081
gal/mo
8,837
gpd
Total Flow
1,784,616
gal/mo
65,371
gpd (USE 92,000 GPD)
Total Number Users
360
08/08/2001
2
CU0102
II. COLLECTION SYSTEM COST ESTIMATE
SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
lift station at South Mills Rd
1
LS @
125,000
$
125,000.00
'Main
8" Gravity sewer (0 - 6')
500
LF @
30
$
15,000.00
8" Gravity Sewer (6'- 8')
500
LF @
32 =
$
16,000.00
8" Gravity Sewer (8' - 10')
500
LF @
34 =
$
17,000.00
'8" Gravity Sewer (10'- 12')
100
LF @
36 =
$
3,600.00
Manhole with ring and cover (0 - 6')
2
EA @
1,800 =
$
3,600.00
Manhole with ring and cover (6'- 8')
1
EA @
2,100 =
$
2,100.00
'Manhole with ring and cover (8' - 10') 1 EA @ 2,400 = $ 2,400.00
Manhole with ring and cover (10' - 12') 1 EA @ 2,700 = $ 2,700.00
4" service laterals 2 EA @ 500 = $ 1,000.00
service laterals
20
EA @
700 =
$
14,000.00
'6"
Total Construction
$
202,400.00
PUMP STATION AND FORCE MAIN SERVING SOUTHLAND
'4"
PVC Force Main
6,851
LF@
9 =
$
61,659.00
Commercial Pump Station
1
LS @
7,500 =
$
7,500.00
Total Construction
$
69,159.00
'
SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN'
RIDGE RD
8" Gravity Sewer (0 - 6')
1,000
LF @
30 =
$
30,000.00
t8"
Gravity Sewer (6'- 8')
8" Gravity Sewer (8' -10')
1,000
500
LF @
LF @
32 =
34 =
$
$
32,000.00
17,000.00
8" Gravity Sewer (10'- 12)
500
LF @
36 =
$
18,000.00
Manhole with ring and cover (0 - 6')
4
EA @
1,800 =
$
7,200.00
'Manhole
with ring and cover (6'- 8')
3
EA @
2,100 =
$
6,300.00
Manhole with ring and cover (8' - 10')
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10' - 12')
2
EA @
2,700 =
$
5,400.00
16" steel casing installed by bore
100
LF @
225
$
22,500.00
'
6" service laterals
9
EA @
700 _
$
6,300.00
4" service laterals
7
EA @
500 =
$
3,500.00
Lift Station and tie-in
1
LS @
90,000 =
$
90,000.00
'6"
PVC Force Main along NC 168
50
LF @
11 =
$
550.00
6" dir bore under Shingle Landing Creek
100
LF @
150
$
15,000.00
Total Construction
$
256,150.00
'
SAWYERTOWN ROAD RESIDENTIAL AREA
4" PVC Force Main
2,900
LF @
9
= $
26,100.00
'8"
PVC Force Main
Residential Pump Station
1,693
24
LF @
LS @
13
5,500
= $
= $
22,009.00
132,000.00
Commercial Pump Station
3
LS @
7,500
= $
22,500.00
Total Construction
$
180,109.00
QUAIL RUN/MOYOCK MEADOWS RESIDENTIAL
AREAS
2" PVC Force Main
10,752
LF @
7
= $
69,888.00
PVC Force Main
6,083
LF @
9
= $
54,747.00
'4"
6" PVC Force Main
2,527
LF @
11
$
27,797.00
Residential Pump Station (214 X 66%)
141
LS @
5,500
= $
775,500.00
'
Total Construction
$
927,932.00
CU0102
08/08/2001
3
'SOUTH MILLS ROAD AT HWY 168 TO NEW LAGOON
12" PVC Force Main
2,856
LF @
25 =
$
71,400.00
Residential Pump Station
16
LS @
5,500 =
$
88,000.00
Total Construction
$
159,400.00
MOYOCK VILLAGE AREA TO SOUTH MILLS ROAD
2" PVC Force Main
1,053
LF @
7 =
$
6,844.50
'4"
PVC Force Main
572
LF @
9 =
$
5,148.00
Residential Pump Station
17
LS @
5,500 =
$
93,500.00
Total Construction
$
105,492.50
'
SOUTH LANDING SUBDIVISION AREA
2" PVC Force Main
1,471
LF @
7 =
$
9,561.50
'4"
PVC Force Main
Residential Pump Station
473
17
LF @
LS @
9 =
5,500 =
$
$
4,257.00
93,500.00
Commercial Pump Station
2
LS @
7,500 =
$
15,000.00
Total Construction
$
122,318.50
'
MOYOCK EAST OF RAILROAD TRACKS
2" PVC Force Main
1,075
LF @
7 =
$
6,987.50
8 PVC Force Main
1,789
LF @
13 =
$
23,257.00
16" steel casing installed by bore
175
LF @
225 =
$
39,375.00
Residential Pump Station
18
LS @
5,500 =
$
99,000.00
Commercial Pump Station
9
LS @
7,500 =
$
67,500.00
'
Total Construction
$
236,119.50
'
Total Collection System Construction Cost
$
2,259,080.50
'III.
WWTP COST ESTIMATE
lagoon and piping
9
acres@
1.25 /sf
$
488,670.30
lagoon liner
9
acres@
0.75 /sf
$
293,202.18
pump station and generator
LS
$
350,000.00
'effluent
spray system
21
acres@
7,500.00 /acre
$
160,948.54
crop planting
21
acres@
1,000 /acre
$
21,459.81
'
miscellaneous equipment(tractor, rake, and balers)
miscellaneous equipment (disinfection)
LS
LS
$
$
50,000.00
50,000.00
Total Construction
$
1,414,280.83
CU0102
'
08/08/2001
4
' IV SUMMARY OF COSTS
Collection System Construction
' Treatment System Construction
TOTAL CONSTRUCTION
' Engineering
Design (8%)
Inspection (6%)
'TOTAL ENGINEERING
LAND
' CONTINGENCIES
' GRAND TOTAL
V. EXPENDITURES
' Debt Service
Salaries
O & M @ $1.20/1,000 gal
' O & M PS @ $500/PS/10years
Total
' 08/08/2001
$
2,259,080.50
$
1,414,280.83
$
3,673,361.33
$
293,868.91
$
220,401.68
$
614,270.59
63 acres@ $
4,000.00
$
252,000.00
$
367,336.13
5
USDA RD Loan
20 years @ 6.00%
$ 419,167.61
$ 60,000.00
$ 25,698.47
$ 12,200.00
$ 517,066.08
$ 4,806,968.05
000102
1
' VI. PROJECTED SEWER RATES
100% Participation
With USDA RD Loan, 20 years @ 6.00%
' Assume base rate per month = $20.00
Rate/1,000 gal
Avg. mo. Bill
Assume base rate per month = $20.00
' Rate/1,000 gal
Avg. mo. Bill
1
' 08/08/2001
RESIDENTIAL
4,648 gal/mo
$
20.11
$
113.47
MEDIUM
BUSINESS
7,500 gal/mo
$
20.11
$
170.83
6
SMALL BUSINESS
2,500 gal/mo
$ 20.11
$ 70.28
LARGE BUISNESS
100,000 gal/mo
$ 20.11
$ 2,031.01
CU0102
El
' CURRITUCK COUNTY CENTRALIZED SEWER FEASIBILITY STUDY
' MOYOCK AREA LAND APPLICATION FACILITY
SCENARIO 5: HWY 168, SAWYERTOWN RD, TULL'S BAY, & RANCHLAND
I. COLLECTION SYSTEM FLOW SUMMARY
'SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
13 small businesses @ 2,500 gal/mo= 32,500 gal/mo 1,625 gpd
6 medium businesses @ 7,500 gal/mo= 45,000 gal/mo 2,250 gpd
1 residence @ 4,648 gal/mo = 4,648 gal/mo 155 gpd
Total 82,148 gal/mo 4,030 gpd
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE ALONG HWY 168
'10
small businesses @ 2,500 gal/mo=
25,000
gal/mo
1,250
gpd
4 medium businesses @ 7,500 gal/mo=
30,000
gal/mo
1,500
gpd
7 residences @ 4,648 gal/mo=
32,536
gal/mo
1,085
gpd
'
Total
87,536
gal/mo
3,835
gpd
SECTION FROM SOUTH OF VA LINE TO SOUTH OF ABC STORE ALONG HWY 168
'2
small businesses @ 2,500 gal/mo=
2 medium businesses @ 7,500 gal/mo=
5,000
15,000
gal/mo
gal/mo
250
750
gpd
gpd
Southland Restaurant, shops=
103,967
gal/mo
5,198
gpd
7 residences @ 4,648 gal/mo=
32,536
gal/mo
1,085
gpd
Total
166,503
gal/mo
7,283
gpd
SECTION FROM SOUTH OF ABC STORE TO NORTH OF BAXTER'S LANE ALONG HWY 168
small businesses @ 2,500 gal/mo=
10,000
gal/mo
500
gpd
'4
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
1 residence @ 4,648 gal/mo=
4,648
gal/mo
155
gpd
29,648
gal/mo
1,405
gpd
'Total
SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN'
RIDGE ROAD
6 small businesses @ 2,500 gal/mo=
15,000
gal/mo
750
gpd
medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
'2
6 residences @ 4,648 gal/mo=
27,888
gal/mo
930
gpd
Total
57,888
gal/mo
2,430
gpd
'TULLS BAY COLONY RESIDENTIAL AREA & HOMES ALONG TULLS CREEK ROAD
1 small businesses @ 2,500 gal/mo= 2,500 gal/mo 125 gpd
1 medium businesses @ 7,500 gal/mo= 7,500 gal/mo 375 gpd
'315 residences @ 4,648 gal/mo= 1,464,120 gal/mo 48,804 gpd
Total 1,474,120 gal/mo 49,304 gpd
'SAWYERTOWN ROAD RESIDENTIAL AREA
23 residences @ 4,648 gal/mo= 106,904 gal/mo 3,563 gpd
2 medium businesses @ 7,500 gal/mo= 15,000 gal/mo 750 gpd
' Total 121,904 gal/mo 4,313 gpd
CU0102
' 08/08/2001 1
SOUTH MILLS RD AT HWY 168 TO NEW LAGOON
15 residences @ 4,648 gal/mo=
69,720
gal/mo
2,324
gpd
Total
69,720
gal/mo
2,324
gpd
RANCHLAND SUBDIVISION
1 medium businesses @ 7,500 gal/mo=
7,500
gal/mo
375
gpd
207 residences @ 4,648 gal/mo=
962,136
gal/mo
32,071
gpd
Total
969,636
gal/mo
32,446
gpd
Total Flow
3,049,103
gal/mo
107,370
gpd (USE 160,000 GPD)
Total Number Users
641
08/08/2001
1
CU0102
II. COLLECTION SYSTEM COST ESTIMATE
SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
Main lift station at South Mills Rd
1
LS @
125,000
$
125,000.00
8" Gravity sewer (0 - 6')
500
LF @
30
$
15,000.00
8" Gravity Sewer (6'- 8')
500
LF @
32 =
$
16,000.00
8" Gravity Sewer (8' -10')
500
LF @
34 =
$
17,000.00
'8"
Gravity Sewer (10'- 12')
100
LF @
36 =
$
3,600.00
Manhole with ring and cover (0 - 6')
2
EA @
1,800 =
$
3,600.00
Manhole with ring and cover (6'- 8')
1
FA @
2,100 =
$
2,100.00
Manhole with ring and cover (8'- 10')
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10'- 12')
1
EA @
2,700 =
$
2,700.00
4" service laterals
2
EA @
500 =
$
1,000.00
'6"
service laterals
Total Construction
20
EA @
700 =
$
$
14,000.00
202,400.00
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE ALONG HWY 168
8" Gravity Sewer (0 - 6')
1,000
LF @
30 $
30,000.00
8" Gravity Sewer (6'- 8')
1,000
LF @
32 _ $
32,000.00
8" Gravity Sewer (8'- 10')
1,000
LF @
34 = $
34,000.00
Gravity Sewer (10'- 12')
500
LF @
36 =
$
18,000.00
'8"
Manhole with ring and cover (0 - 6')
4
EA @
1,800 =
$
7,200.00
Manhole with ring and cover (6'- 8')
2
EA @
2,100 =
$
4,200.00
Manhole with ring and cover (8' - 10')
Manhole with ring and cover (10'- 12')
2
3
EA @
EA @
2,400 =
2,700 =
$
$
4,800.00
8,100.00
6" service laterals
15
EA @
700 =
$
10,500.00
4" service laterals
8
EA @
500 =
$
4,000.00
Lift Station and tie-in 1 LS @ 90,000 $ 90,000.00
6" PVC Force Main along NC 168 1,750 LF @ 11 $ 19,250.00
12" steel casing installed by bore 50 LF @ 200 = $ 10,000.00
Total Construction
$
272,050.00
SECTION FROM SOUTH OF VA LINE TO SOUTH OF ABC STORE ALONG HWY 168
8" Gravity Sewer (0 - 6')
500
LF @
30 =
$
15,000.00
8" Gravity Sewer (6'- 8')
400
LF @
32 =
$
12,800.00
Manhole with ring and cover (0 - 6')
2
EA @
1,800 =
$
3,600.00
Manhole with ring and cover (6'- 8')
2
EA @
2,100 =
$
4,200.00
6" service laterals
8
FA @
700 =
$
5,600.00
4" service laterals
8
EA @
500 =
$
4,000.00
Lift Station and tie-in
1
LS @
90,000 =
$
90,000.00
'6"
PVC Force Main along NC 168
Total Construction
2,500
LF @
11 =
$
$
27,500.00
162,700.00
F
CU0102
' 08/08/2001 3
' SECTION FROM SOUTH OF ABC STORE TO NORTH OF BAXTER'S LANE ALONG HWY 168 8" Gravity Sewer (0 - 6') 500 LF @ 30 —
$ 15,000.00
8" Gravity Sewer (6'- 8') 500 LF @ 32 = $ 16,000.00
8" Gravity Sewer (8'- 10')
500 LF @
34 = $
17,000.00
8" Gravity Sewer (10' - 12')
500 LF @
36 = $
18,000.00
8" Gravity Sewer (12'- 14')
500 LF @
38 = $
19,000.00
Manhole with ring and cover (0 - 6')
2 EA @
1,800 = $
3,600.00
'Manhole with ring and cover (6'- 8') 2 EA @ 2,100 = $ 4,200.00
Manhole with ring and cover (8'- 10') 1 EA @ 2,400 = $ 2,400.00
Manhole with ring and cover (10'- 12') 1 EA @ 2,700 = $ 2,700.00
Manhole with ring and cover (12' - 14')
1
EA @
3,000 =
$
3,000.00
6" service laterals
7
EA @
700 =
$
4,900.00
4" service laterals
2
EA @
500 =
$
1,000.00
Total Construction
$
106,800.00
SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN'
RIDGE RD
8" Gravity Sewer (0 - 6')
1,000
LF @
30 =
$
30,000.00
8" Gravity Sewer (6'- 8') 1,000 LF @ 32 _ $ 32,000.00
8" Gravity Sewer (8'- 10') 500 LF @ 34 = $ 17,000.00
8" Gravity Sewer (10'- 12') 500 LF @ 36 = $ 18,000.00
with ring and cover (0 - 6')
4
EA @
1,800 =
$
7,200.00
'Manhole
Manhole with ring and cover (6'- 8')
3
EA @
2,100 =
$
6,300.00
Manhole with ring and cover (8'- 10')
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10'- 12')
2
EA @
2,700 =
$
5,400.00
16" steel casing installed by bore
100
LF @
225
$
22,500.00
6" service laterals
9
EA @
700 =
$
6,300.00
4" service laterals
7
EA @
500 =
$
3,500.00
Lift Station and tie-in
1
LS @
90,000 =
$
90,000.00
6" PVC Force Main along NC 168
50
LF @
11
$
550.00
6" dir bore under Shingle Landing Creek
100
LF @
150
$
15,000.00
'Total
Construction
$
256,150.00
TULLS BAY COLONY RESIDENTIAL AREA & HOMES ALONG
TULLS CREEK ROAD
2" PVC Force Main
6,700
LF @
7 =
$
43,550.00
'3" PVC Force Main 2,800 LF @ 9 = $ 25,200.00
4" PVC Force Main 10,000 LF @ 9 = $ 90,000.00
6" PVC Force Main 21,000 LF @ 11 = $ 231,000.00
PVC Force Main
2,418
LF @
13 =
$
31,434.00
'8"
Residential Pump Station (316 X 66%)
209
LS @
5,500 =
$
1,149,500.00
Commercial Pump Station
3
LS @
7,500 =
$
22,500.00
Total Construction
$
1,593,184.00
'
SAWYERTOWN ROAD RESIDENTIAL AREA
4" PVC Force Main
2,900
LF @
9 =
$
26,100.00
8" PVC Force Main
1,693
LF @
13 =
$
22,009.00
Residential Pump Station
24
LS @
5,500 =
$
132,000.00
Commercial Pump Station
3
LS @
7,500 =
$
22,500.00
'
Total Construction
$
180,109.00
CU0102
' 08/08/2001 4
SOUTH MILLS ROAD AT HWY 168 TO NEW LAGOON
12" PVC Force Main 2,856 LF @ 25 = $ 71,400.00
Residential Pump Station 16 LS @ 5,500 = $ 88,000.00
Total Construction $ 169,400.00
RANCHLAND SUBDIVISION
2" PVC Force Main
20,165
LF @
4" PVC Force Main
12,628
LF @
6" PVC Force Main
18,205
LF @
12" steel casing installed by bore
200
LF @
Residential Pump Station (208 X 75%)
156
LS @
Commercial Pump Station
2
LS @
Total Construction
Total Collection System Construction Cost
III. WWTP COST ESTIMATE
lagoon and piping
' lagoon liner
effluent pump station and generator
spray system
crop planting
miscellaneous equipment(tractor, rake, and balers)
miscellaneous equipment (disinfection)
Total Construction
IV SUMMARY OF COSTS
' Collection System Construction
Treatment System Construction
TOTAL CONSTRUCTION
' Engineering
9 9
Design (8%)
Inspection (6%)
TOTAL ENGINEERING
' LAND
CONTINGENCIES
GRAND TOTAL
08/08/2001
15 acres@
15 acres@
LS
35 acres@
35 acres@
LS
LS
101 acres@ $
5
7 = $
9 = $
11 = $
200 = $
5,500 = $
7,500 = $
��
1.25 /sf $
0.75 /sf $
7,500.00 /acre $
1,000 /acre $
4,290,772.50
$2,033,795.47
131,072.50
113, 652.00
200,255.00
40,000.00
858,000.00
15,000.00
1,357,979.50
4,290,772.50
802,622.83
481, 573.70
350,000.00
264,352.00
35,246.93
50,000.00
50,000.00
2,033,795.47
$ 6,324,567.97
506,966.44
379,474.08
$ 885,439.62
4,000.00 $ 403,610.54
$ 632,456.80
$ 8,246,074.82
CU0102
V. EXPENDITURES
USDA RD Loan
20 years @ 6.00%
Debt Service $ 719,057.72
Salaries $ 30,000.00
O & M @ $1.20/1,000 gal $ 43,907.08
O & M PS @ $500/PS/10years $ 20,500.00
Total $ 813,464.81
VI. PROJECTED SEWER RATES
100% Participation
With USDA RD Loan, 20 years @ 6.00% RESIDENTIAL SMALL BUSINESS
4,648 gal/mo 2,500 gal/mo
Assume base rate per month = $20.00
Rate/1,000 gal $ 18.03 $ 18.03
Avg. mo. Bill $ 103.79 $ 65.07
MEDIUM BUSINESS LARGE BUSINESS
7,500 gal/mo 100,000 gal/mo
Assume base rate per month = $20.00
Rate/1,000 gal $ 18.03 $ 18.03
Avg. mo. Bill $ 155.21 $ 1,822.78
CU0102
08/08/2001 6
CURRITUCK COUNTY CENTRALIZED SEWER FEASIBILITY STUDY
' MOYOCK AREA LAND APPLICATION FACILITY
SCENARIO 6: HWY 168 (EXCLUDING NORTH OF BAXTER'S LANE),
SAWYERTOWN RD, TULL'S BAY, & RANCHLAND
I. COLLECTION SYSTEM FLOW SUMMARY
'SECTION
FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
13 small businesses @ 2,500 gal/mo=
32,500
gal/mo
1,625
gpd
6 medium businesses @ 7,500 gal/mo=
45,000
gal/mo
2,250
gpd
1
1 residence @ 4,648 gal/mo =
4,648
gal/mo
155
gpd
Total
82,148
gal/mo
4,030
gpd
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE ALONG HWY 168
10 small businesses @ 2,500 gal/mo=
25,000
gal/mo
1,250
gpd
4 medium businesses @ 7,500 gal/mo=
30,000
gal/mo
1,500
gpd
7 residences @ 4,648 gal/mo=
32,536
gal/mo
1,085
gpd
'
Total
87,536
gal/mo
3,836
gpd
SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN'
RIDGE ROAD
small businesses @ 2,500 gal/mo=
15,000
gal/mo
750
gpd
'6
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
6 residences @ 4,648 gal/mo=
27,888
gal/mo
930
gpd
Total
57,888
gal/mo
2,430
gpd
TULLS BAY COLONY RESIDENTIAL AREA & HOMES
ALONG
TULLS CREEK ROAD
1 small businesses @ 2,500 gal/mo=
2,500
gal/mo
125
gpd
1 medium businesses @ 7,500 gal/mo=
7,500
gal/mo
375
gpd
315 residences @ 4,648 gal/mo=
1,464,120
gal/mo
48,804
gpd
Total
1,474,120
gal/mo
49,304
gpd
'
SAWYERTOWN ROAD RESIDENTIAL AREA
23 residences @ 4,648 gal/mo=
106,904
gal/mo
3,563
gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
Total
121,904
gal/mo
4,313
gpd
SOUTH MILLS RD AT HWY 168 TO NEW LAGOON
15 residences @ 4,648 gal/mo=
69,720
gal/mo
2,324
gpd
Total
69,720
gal/mo
2,324
gpd
RANCHLAND SUBDIVISION
1 medium businesses @ 7,500 gal/mo=
7,500
gal/mo
375
gpd
207 residences @ 4,648 gal/mo=
962,136
gal/mo
32,071
gpd
Total
969,636
gal/mo
32,446
gpd
Total Flow
2,862,952
gal/mo
98,682
gpd (USE 140,000 GPD)
Total Number Users
620
CU0102
08/08/2001 1
II. COLLECTION SYSTEM COST ESTIMATE
SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
Main lift station at South Mills Rd
1
LS @
125,000 =
$
125,000.00
8" Gravity sewer (0 - 6')
500
LF @
30 =
$
15,000.00
8" Gravity Sewer (6'- 8')
500
LF @
32 =
$
16,000.00
8" Gravity Sewer (8'- 10')
500
LF @
34 =
$
17,000.00
8" Gravity Sewer (10' - 12')
100
LF @
36 =
$
3,600.00
Manhole with ring and cover (0 - 6')
2
Fro @
1,800 =
$
3,600.00
Manhole with ring and cover (6'- 8')
1
EA @
2,100 =
$
2,100.00
Manhole with ring and cover (8'- 10)
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10'- 12')
1
EA @
2,700 =
$
2,700.00
4" service laterals
2
EA @
500 =
$
1,000.00
6" service laterals
20
EA @
700 =
$
14,000.00
Total Construction
$
202,400.00
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE ALONG HWY 168
8" Gravity Sewer (0 - 6')
1,000
LF @
30 =
$
30,000.00
8" Gravity Sewer (6'- 8')
1,000
LF @
32 =
$
32,000.00
8" Gravity Sewer (8'- 10')
1,000
LF @
34 =
$
34,000.00
8" Gravity Sewer (10' - 12')
500
LF @
36 =
$
18,000.00
Manhole with ring and cover (0 - 6')
4
EA @
1,800 =
$
7,200.00
Manhole with ring and cover (6'- 8')
2
EA @
2,100 =
$
4,200.00
Manhole with ring and cover (8' -10')
2
EA @
2,400 =
$
4,800.00
Manhole with ring and cover (10'- 12')
3
EA @
2,700 =
$
8,100.00
6" service laterals
15
EA @
700 =
$
10,500.00
4" service laterals
8
EA @
500 =
$
4,000.00
Lift Station and tie-in
1
LS @
90,000 =
$
90,000.00
6" PVC Force Main along NC 168
1,750
LF @
11 =
$
19,250.00
12" steel casing installed by bore
50
LF @
200 =
$
10,000.00
Total Construction
$
272,050.00
SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN' RIDGE RD
8" Gravity Sewer (0 - 6')
1,000
LF @
30 =
$
30,000.00
8" Gravity Sewer (6'- 8')
1,000
LF @
32 =
$
32,000.00
8" Gravity Sewer (8'- 10')
500
LF @
34 =
$
17,000.00
8" Gravity Sewer (10' - 12)
500
LF @
36 =
$
18,000.00
Manhole with ring and cover (0 - 6')
4
EA @
1,800 =
$
7,200.00
Manhole with ring and cover (6'- 8')
3
EA @
2,100 =
$
6,300.00
Manhole with ring and cover (8' - 10')
1
EA @
2,400 =
$
2,400.00
Manhole with ring and cover (10'- 12')
2
EA @
2,700 =
$
5,400.00
16" steel casing installed by bore
100
LF @
225
$
22,500.00
6" service laterals
9
EA @
700 =
$
6,300.00
4" service laterals
7
EA @
500 =
$
3,500.00
Lift Station and tie-in
1
LS @
90,000 =
$
90,000.00
6" PVC Force Main along NC 168
50
LF @
11 =
$
550.00
6" dir bore under Shingle Landing Creek
100
LF @
150
$
15,000.00
Total Construction
$
256,150.00
CU0102
08/08/2001 2
' TULLS BAY COLONY RESIDENTIAL AREA & HOMES ALONG TULLS CREEK ROAD
'
2" PVC Force Main
6,700
LF @
7 =
$
43,550.00
3" PVC Force Main
2,800
LF @
9 =
$
25,200.00
'4"
PVC Force Main
6" PVC Force Main
10,000
21,000
LF @
LF @
9 =
11
$
$
90,000.00
231,000.00
8" PVC Force Main
2,418
LF @
13 =
$
31,434.00
Pump Station (316 X 66%)
209
LS @
5,500 =
$
1,149,500.00
'Residential
Commercial Pump Station
3
LS @
7,500 =
$
22,500.00
Total Construction
4" PVC Force Main
2,900
LF @
9 =
$
26,100.00
8" PVC Force Main
1,693
LF @
13 =
$
22,009.00
'Residential
Pump Station
Commercial Pump Station
24
3
LS @
LS @
5,500 =
7,500 =
$
$
132,000.00
22,500.00
Total Construction
$
180,109.00
'
SOUTH MILLS ROAD AT HWY 168 TO NEW LAGOON
12" PVC Force Main
2,856
LF @
25 =
$
71,400.00
Residential Pump Station 16 LS @ 5,500 = $ 88,000.00
Total Construction $ 159,400.00
� 7\►L43.1W_1►t1►&V1--IIIIVI&,Rol`
'2" PVC Force Main
20,165
LF @
7 =
$
131,072.50
4" PVC Force Main
12,628
LF @
9 =
$
113,652.00
6" PVC Force Main
18,205
LF @
11 =
$
200,255.00
steel casing installed by bore
200
LF @
200 =
$
40,000.00
'12"
Residential Pump Station (208 X 75%)
156
LS @
5,500 =
$
858,000.00
Commercial Pump Station
2
LS @
7,500 =
$
15,000.00
'
Total Construction
$
1,357,979.60
Total Collection System Construction Cost
$
4,021,272.50
'
III. WWTP COST ESTIMATE
lagoon and piping
lagoon liner
14
14
acres@
acres@
1.25 /sf
0.75 /sf
$
$
737,678.54
442,607.12
effluent pump station and generator
LS
$
350,000.00
spray system
32
acres@
7,500.00 /acre
$
242,961.93
planting
32
acres@
1,000 /acre
$
32,394.92
'crop
miscellaneous equipment(tractor, rake, and balers)
LS
$
50,000.00
miscellaneous equipment (disinfection)
LS
$
50,000.00
I
Total Construction $ 1,905,642.52
I
CU0102
' 08/08/2001 3
' IV SUMMARY OF COSTS
Collection System Construction
Treatment System Construction
TOTAL CONSTRUCTION
' Engineering
Design (8%)
Inspection (6%)
' TOTAL ENGINEERING
LAND
CONTINGENCIES
GRAND TOTAL
' V. EXPENDITURES
Debt Service
Salaries
O & M @ $1.20/1,000 gal
O & M PS @ $500/PS/10years
Total
' 08/08/2001
$
4,021,272.60
$1,905,642.62
$
5,926,915.02
$
474,153.20
$
355,614.90
$
829,768.10
95 acres@ $
4,000.00
$
380,714.32
$
692,691.60
$
7,730,088.94
4
USDA RD Loan
20 years @ 6.00%
$ 674,063.76
$ 30,000.00
$ 41,226.51
$ 20,500.00
$ 765,790.26
CU0102
' VI. PROJECTED SEWER RATES
100% Participation
' With USDA RD Loan, 20 years @ 6.00%
' Assume base rate per month = $20.00
Rate/1,000 gal
Avg. mo. Bill
Assume base rate per month = $20.00
' Rate/1,000 gal
Avg. mo. Bill
1
' 08/08/2001
RESIDENTIAL
4,648 gal/mo
$
17.96
$
103.47
MEDIUM
BUSINESS
7,500 gal/mo
$
17.96
$
154.69
5
SMALL BUSINESS
2,500 gal/mo
$ 17.96
$ 64.90
LARGE BUSINESS
10,000 gal/mo
$ 17.96
$ 1,815.90
CU0102
CURRITUCK COUNTY CENTRALIZED SEWER FEASIBILITY STUDY
MOYOCK AREA LAND APPLICATION FACILITY
SCENARIO 7: HWY 168, SAWYERTOWN RD, TULL'S BAY, RANCHLAND (NO GRAVITY)
I. COLLECTION SYSTEM FLOW SUMMARY
SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
13 small businesses @ 2,500 gal/mo=
32,500
gal/mo
1,625
gpd
6 medium businesses @ 7,500 gal/mo=
45,000
gal/mo
2,250
gpd
1 residence @ 4,648 gal/mo =
4,648
gal/mo
155
gpd
Total
82,148
gal/mo
4,030
gpd
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE ALONG HWY 168
10 small businesses @ 2,500 gal/mo=
25,000
gal/mo
1,250
gpd
4 medium businesses @ 7,500 gal/mo=
30,000
gal/mo
1,500
gpd
7 residences @ 4,648 gal/mo=
32,536
gal/mo
1,085
gpd
Total
87,536
gal/mo
3,835
gpd
SECTION FROM SOUTH OF VA LINE TO SOUTH OF ABC STORE ALONG HWY 168
2 small businesses @ 2,500 gal/mo=
5,000
gal/mo
250
gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
Southland Restaurant, shops=
103,967
gal/mo
5,198
gpd
7 residences @ 4,648 gal/mo=
32,536
gal/mo
1,085
gpd
Total
156,503
gal/mo
7,283
gpd
SECTION FROM SOUTH OF ABC STORE TO NORTH OF BAXTER'S LANE ALONG HWY 168
4 small businesses @ 2,500 gal/mo=
10,000
gal/mo
500 gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750 gpd
1 residence @ 4,648 gal/mo=
4,648
gal/mo
155 gpd
Total
29,648
gal/mo
1,405 gpd
SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN' RIDGE ROAD
6 small businesses @ 2,500 gal/mo=
15,000
gal/mo
750 gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750 gpd
6 residences @ 4,648 gal/mo=
27,888
gal/mo
930 gpd
Total
57,888
gal/mo
2,430 gpd
TULLS BAY COLONY RESIDENTIAL AREA & HOMES ALONG TULLS CREEK ROAD
1 small businesses @ 2,500 gal/mo=
2,500
gal/mo
125
gpd
1 medium businesses @ 7,500 gal/mo=
7,500
gal/mo
375
gpd
315 residences @ 4,648 gal/mo=
1,464,120
gal/mo
48,804
gpd
Total
1,474,120
gal/mo
49,304
gpd
SAWYERTOWN ROAD RESIDENTIAL AREA
23 residences @ 4,648 gal/mo=
106,904
gal/mo
3,563
gpd
2 medium businesses @ 7,500 gal/mo=
15,000
gal/mo
750
gpd
Total
121,904
gal/mo
4,313
gpd
CU0102
08/08/2001
'SOUTH MILLS RD AT HWY 168 TO NEW LAGOON
15 residences @ 4,648 gal/mo=
Total
RANCHLAND SUBDIVISION
1 medium businesses @ 7,500 gal/mo=
207 residences @ 4,648 gal/mo=
Total
Total Flow
' Total Number Users
' 08/08/2001
69,720 gal/mo 2,324 gpd
69,720 gal/mo 2,324 gpd
7,500
gal/mo
375
gpd
962,136
gal/mo
32,071
gpd
969,636
gal/mo
32,446
gpd
3,049,103
gal/mo
107,370
gpd (USE 235,000 GPD)
641
2
CU0102
P
n
r
I
k
I I
II. COLLECTION SYSTEM COST ESTIMATE
SECTION FROM LAZY CORNER RD TO SOUTH MILLS RD ALONG HWY 168
10" PVC Force Main 1,600 LF @ 15 = $ 24,000.00
Residential Pump Station 2 LS @ 5,500 = $ 11,000.00
Commercial Pump Station 20 LS @ 7,500 = $ 150,000.00
Total Construction $ 185,000.00
SECTION FROM LAZY CORNER RD NORTH TO BAXTER'S LANE ALONG HWY 168
10" PVC Force Main
3,500 LF @
15 = $
52,500.00
Residential Pump Station
8 LS @
5,500 = $
44,000.00
Commercial Pump Station
15 LS @
7,500 = $
112,500.00
16" steel casing installed by bore
50 LF @
225 = $
11,250.00
Total Construction
$
220,260.00
SECTION FROM SOUTH OF VA LINE TO SOUTH OF ABC STORE ALONG HWY 168
6" PVC Force Main 900 LF @ 11 = $ 9,900.00
Residential Pump Station 8 LS @ 5,500 = $ 44,000.00
Commercial Pump Station 8 LS @ 7,500 = $ 60,000.00
Total Construction $ 113,900.00
SECTION FROM SOUTH OF ABC STORE TO NORTH OF BAXTER'S LANE ALONG HWY 168
8" PVC Force Main 2,500 LF @ 13 = $ 32,500.00
Residential Pump Station 2 LS @ 5,500 = $ 11,000.00
Commercial Pump Station 7 LS @ 7,500 = $ 52,500.00
Total Construction $ 96,000.00
SECTION FROM SOUTH MILLS RD TO 500' SOUTH OF PUDDIN' RIDGE RD
6" PVC Force Main
3,000
LF @
11 =
$
33,000.00
12" steel casing installed by bore
100
LF @
200 =
$
20,000.00
Residential Pump Station
7
LS @
5,500 =
$
38,500.00
Commercial Pump Station
9
LS @
7,500 =
$
67,500.00
6" dir bore under Shingle Landing Creek
100
LF @
150
$
15,000.00
Total Construction
$
174,000.00
TULLS BAY COLONY RESIDENTIAL AREA & HOMES ALONG TULLS CREEK ROAD
2" PVC Force Main
6,700
LF @
7 =
$
43,550.00
3" PVC Force Main
2,800
LF @
9 =
$
25,200.00
4" PVC Force Main
10,000
LF @
9 =
$
90,000.00
6" PVC Force Main
21,000
LF @
11 =
$
231,000.00
8" PVC Force Main
2,418
LF @
13 =
$
31,434.00
Residential Pump Station (316 X 66%)
209
LS @
5,500 =
$
1,149,500.00
Commercial Pump Station
3
LS @
7,500 =
$
22,500.00
Total Construction
$
1,593,184.00
SAWYERTOWN ROAD RESIDENTIAL AREA
4" PVC Force Main
2,900
LF @
9 =
$
26,100.00
8" PVC Force Main
1,693
LF @
13 =
$
22,009.00
Residential Pump Station
24
LS @
5,500 =
$
132,000.00
Commercial Pump Station
3
LS @
7,500 =
$
22,500.00
Total Construction
$
202,609.00
CU0102
08/08/2001 3
MILLS ROAD AT HWY 168 TO NEW LAGOON
'SOUTH
12" PVC Force Main
2,856
LF @
Residential Pump Station
16
LS @
Total Construction
RANCHLAND SUBDIVISION
2" PVC Force Main
20,165
LF @
PVC Force Main
12,628
LF @
'4"
6" PVC Force Main
18,205
LF @
12" steel casing installed by bore
200
LF @
Pump Station (208 X 75%)
156
LS @
'Residential
Commercial Pump Station
2
LS @
Total Construction
'
Total Collection System Construction Cost
III. WWTP COST ESTIMATE
lagoon and piping
15
acres@
lagoon liner
15
acres@
'
effluent pump station and generator
LS
spray system
35
acres@
crop planting
35
acres@
miscellaneous equipment(tractor, rake, and balers)
LS
'
miscellaneous equipment (disinfection)
LS
Total Construction
'
IV SUMMARY OF COSTS
'Collection
System Construction
Treatment System Construction
TOTAL CONSTRUCTION
'
Engineering
Design (8%)
'
Inspection (6%)
TOTAL ENGINEERING
' LAND 101 acres@ $
CONTINGENCIES
GRAND TOTAL
' 08/08/2001 4
25 =
$
71,400.00
5,500 =
$
88,000.00
$
159,400.00
7 =
$
131,072.50
9 =
$
113,652.00
11 =
$
200,255.00
200 =
$
40,000.00
5,500 =
$
858,000.00
7,500 =
$
15,000.00
$
1,357,979.60
$ 4,102,322.50
1.25 /sf
$
802,622.83
0.75 /sf
$
481,573.70
$
350,000.00
7,500.00 /acre
$
264,352.00
1,000 /acre
$
35,246.93
$
50,000.00
$
50,000.00
$
2,033,795.47
4,102,322.60
$2,033,796.47
$ 6,136,117.97
490,889.44
368,167.08
$ 859,056.52
4,000.00 $ 403,610.54
$ 613,611.80
$ 8,012,396.82
cu0102
1
' V. EXPENDITURES
' Debt Service
Salaries
O & M @ $1.20/1,000 gal
' O & M PS @ $500/PS/10years
Total
' VI. PROJECTED SEWER RATES
' 100% Participation
With USDA RD Loan, 20 years @ 6.00%
' Assume base rate per month = $20.00
Rate/1,000 gal
' Avg. mo. Bill
' Assume base rate per month = $20.00
Rate/1,000 gal
Avg. mo. Bill
1
1
' 08/08/2001
RESIDENTIAL
4,648 gal/mo
$ 17.47
$ 101.20
MEDIUM BUSINESS
7,500 gal/mo
$ 17.47
$ 151.03
5
USDA RD Loan
20 years @ 6.00%
$ 698,681.00
$ 30,000.00
$ 43,907.08
$ 20,500.00
$ 793,088.09
SMALL BUSINESS
2,500 gal/mo
$ 17.47
$ 63.68
LARGE BUSINESS
100,000 gal/mo
$ 17.47
$ 1,767.09
CU0102