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HomeMy WebLinkAboutCentralized Sewer System Feasibility Study-2001--- - -- -- - r i 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. {{{{{f111fII1I :�•`'�4 LESS tN N9 SEAL 14996 `,•••FN- E A. •�•r offf1111111{{,' 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 ' • Identify possible revenue sources for funding the sewer system • Identify areas of the County where sewer service may not be practical ' • Estimate connection fees for customers of the system • Supply phasing recommendations for building a system 1 7� ' • Identify suitable land for location of a treatment facility • Analyze issues relating to existing package treatment systems installed throughout the County Ll n �J 2 ' b$0! 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 I 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. 3 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. 4 M01 ' Permeabilityrefers to the quality of soil that enables water to q Y move downward through the profile. Permeability is ' 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 ' 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 ' 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. 5 moo, 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. 6 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 7 I 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 8 ' &'8101 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. 9 ' satir 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 10 aarof ' 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 ' 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 ' 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 ' 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. 11 ' s�mr I V. ALTERNATIVES CONSIDERED FOR u 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 12 ' d&D/ L ' 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. 13 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 16 ' 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 17 ' dBiD/ ' 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 18 ' aaro� ' 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 .r'v ,�r;F`� .. ;III•••%` �'",r~ �, I 'r 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 `, '► !�y,1. 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'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 To 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 � N 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 Nt cc It? I .'4III� I." lit ' T 7 t rfi Lo 1 , ,IT I I T It 14 ;, - ,� �,._f,. � � �, # I ��,� � lit •,�r� �, < I' } f I# r I # ;�' �' , i� illI� -j J ' ,r�� �'I#,�'t 14 -. �J� I 'r l� �,�'�}#� 4'r { r i 41 r�l J# ¢r¢ 4► 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 14 j 1� 114' �41141 =s t rz a or 0 } a, j � a U � o N ro C ar U d Z N Q O Z2 Z.:r �2S 4 , z r a -C z_ U CL V h i Jx N,^ �N N tl ---------------- N I + • ^ ��LJt y i,r'rtt �r�rt flSr4 .'..ct f}> ,,>y.�' ,' t..lTr /.' 2 p%F5 • 1 •�� s.-t�Z� �� t �LxT �! !11>• yyl is lks�w.u,...s✓� .� 1,. ►'. 13,u c O �/ 1 It i� V �y �� • •( h ` En d ZC h'J C T N p a2f o 1 i u C v O U 0 n - v' N N_ N �bs a a t U U- y Y L Q ti zt j a a U� a► o N C U . . ., ..�_�:........�. _._�...� 2 I 2 \ � � 2 m � % 2 a E '\ m a . � k � U d � ¥ � £. k v CL 2 2 32 � 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