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HomeMy WebLinkAboutBelews Creek Proposed Permanent Water Solution_20161104Permanent Water Supply Proposal to DEQ — Belews Creek Belews Creek Steam Station Stokes County 58 eligible households Duke Energy has evaluated the feasibility and costs of providing a permanent replacement water supply to eligible households, as required under G.S. 130A-309.21 1 (cl) of House Bill 630. Households were designated as "eligible" if any portion of a parcel of land crossed the mile compliance buffer described in HB630 and if the household currently utilized well water or bottled water (under Duke Energy's bottled water program) as the drinking water source. Although HB630 indicates that households are to be covered, Duke Energy has included two (2) schools/churches and one (1) business as eligible locations. Undeveloped parcels were identified but were not considered "eligible" because groundwater wells are not currently utilized as a drinking source. Dewberry, a respected outside vendor, conducted the Potable Water Programmatic Evaluation (attached); the evaluation consisted of a survey of eligible households and a preliminary engineering evaluation, cost estimate and schedule. Dewberry's report, for the most part, assumes one metered connection per parcel; therefore, multiple homes may be serviced by one connection. The total count in this proposed plan includes all final connections. During their evaluation, Dewberry recommended that 19 of the eligible households be excluded from the municipal water line evaluation. In order to connect those households, the public water supply line would require crossing a large water canal and a bridge crossing, both of which would be technically complicated, time consuming and costly. These 19 homes were excluded from the Dewberry cost estimate. The Town of Walnut Cove purchases water from the Winston-Salem/Forsyth County Utilities through Stokes County and has conceptually agreed to allow for another interconnect with Stokes County to provide water to the households around the Belews Creek Station. System modifications including a pressure boosting station and additional disinfection may be required to provide water at a sufficient pressure and quality. While the closest existing municipal line terminates at the intersection of Martin Luther King Jr. Road and Crestview Drive, Dewberry has determined that the current water main on Martin Luther King Jr. Road would need to be replaced starting at the intersection of this road with NC- 65. The closest new household connection is approximately 16,500 feet (3.1 miles) from the intersection of Martin Luther King Jr. Road and NC-65. The furthest household, located on Middleton Loop, is approximately 22,000 feet (4.2 miles) from the intersection. The estimated cost to provide a municipal line to the 39 households is $4,800,000, or $123,000 per household. The Dewberry evaluation includes a project schedule based their past experience installing public water systems. This preliminary project schedule indicates that a public water supply could be available through the Town of Walnut Cove by December 2018, which does not meet the October 2018 deadline. DUKE �, ENERGY: Permanent Water Supply Proposal to DEQ — Belews Creek Based on the results of the Dewberry evaluation, the concerns over water line pressure and the additional disinfection needed, and the overall construction costs, Duke Energy proposes that all 58 households be offered a water treatment system. The performance standard for the public water system is the Federal MCLs. The performance standard for the water treatment system is also the Federal MCLs except for those constituents identified in 2015 as having potential health concerns: arsenic, hexavalent chromium, cobalt, iron, lead, manganese, sulfate and vanadium. For these constituents, the performance standard will be either one-half of the MCL or the appropriate state standard, whichever is more protective. Duke Energy is currently evaluating an ion filtration treatment system; this system has been successfully installed in other parts of the state, and initial results show it performs well in reducing vanadium and hexavalent chromium, among other constituents. The costs shown below are for a conceptual ion filtration treatment system. The final water treatment system will be based upon the results of field studies. Duke Energy has made efforts to identify all eligible households, but it is anticipated that a nominal number of additional households will be identified during the initial outreach effort conducted upon approval of this plan by NCDEQ. If the final number of households results in a conclusion different than those stated in this preliminary plan, Duke Energy will revise and submit the new plan to NCDEQ for evaluation and approval. Well owners will be responsible for making the decision for their parcels. Only households within the'/2 mile boundary and served by well water at the time of the submittal of this plan will be eligible for a permanent water supply as part of HB630. ,& DUKE ENERGY: Permanent Water Supply Proposal to DEQ — Belews Creek Ion Filtration Water Treatment System Total Number Recommended 58 Water Quality Criteria Meets applicable water quality Yes standards Federal MCLs Completion Schedule Estimated completion date 12/2017 Contingency factors N/A Operational Considerations Required acceptance level to achieve consistent water N/A quality and supply Required acceptance level to achieve targeted cost per N/A eligible household (<$35k/household) Location of households relative to existing municipal N/A water lines I Other considerations Costs Total Installation Costs $406,000 - $580,000 Approximate cost per eligible $7 000 - $10,000 household Annual Maintenance Costs $29,000 - $116,000 - $2,000 Maintenance cost per household annually$500 Non -Duke Costs Total estimated water bills N/A monthly Estimated water bills monthly N/A per household Ongoing municipality costs for maintenance and flushing due N/A to low-flow/low-usage Total Costs (Duke and Non -Duke) Total estimated cost for all $000 - eligible neighbors over 10 $1,74740,000 years Ttl t'mtd tfr h o a es i a e cos o eac eligible neighbors over 10 $12,000 - $30,000 years (� DUKE ENERGY,. Dewberry Belews Creek Steam Station Phase II Potable Water Programmatic Evaluation Duke Energy November 4, 2016 Z! SUBMITTED BY: Dewberry 2610 Wycliff Road Suite 410 Raleigh, NC 27607 SUBMITTED TO: Duke Energy Table of Contents ExecutiveSummary ...............................................................................................2 1. Introduction and Project Approach..............................................................4 2. Phase II Basis of Design................................................................................6 2.1 Potable Water Connection Mapping.............................................................. 6 2.2 Municipal Potable Water Connection Opinion of Probable Cost.................6 3. Site Analysis................................................................................................... 7 3.1 Station Mapping and Household Data.......................................................... 7 3.2 Field Observations.......................................................................................... 7 3.3 Other Considerations.....................................................................................8 4. Regulatory Permitting..................................................................................10 5. Schedule........................................................................................................11 6. Opinion of Probable Cost............................................................................12 Appendix A: Belews Creek Station Phase II Mapping Appendix B: Belews Creek Station Household Data Spreadsheet Appendix C: Schedule Appendix D: Opinion of Probable Cost 9 Dewberry Duke Energy I Belews Creek Steam Station Phase 11 Potable Water Programmatic Evaluation 11 Executive Summary This Phase II evaluation is structured to comply with the requirements of North Carolina House Bill 630: Section 13oA-309.211.(c1) of House Bill 63o requires provision of permanent water supply for each household that has a drinking water supply well located within a 1/2 mile radius from the established compliance boundary of a coal combustion residuals impoundment, and is not separated from the impoundment by the mainstem of a river, or other body of water that would prevent the migration of contaminants through groundwater from the impoundment to a well. To address the provisions of House Bill 63o, Dewberry performed this Phase II preliminary engineering evaluation to supply potable water to residents within a 1/2 mile of the compliance boundary. Preparation of this report is intended to comply with the House Bill 63o requirement to make a report submittal to the North Carolina Department of Environmental Quality (DEQ) by December 15, 2016. On August 31, 2016 a project review meeting was held at the Walnut Cove Public Library. Representatives from Duke Energy, Dewberry, Walnut Cove (including two Town Commissioners and the Mayor), and Stokes County attended the meeting. Detailed Phase II mapping was developed using Stokes County property maps that show each household in the 1/2 mile compliance buffer. Dewberry visually observed households shown on the Phase II mapping on September 13, 2016. A household database was developed using Stokes County tax records tied to the GIS shape file which identifies the property owner and the address for each household within the 1/2 mile compliance buffer. Based on our site observations and the Phase II mapping, it appears to be technically feasible to install the potable water line in the public road right of way using conventional construction methods. Private easements appear to be required in three areas on private property. A schedule was prepared in part to show milestone dates needed to comply with House Bill 630 which states the following: • Report submittal to the North Carolina DEQ no later than December 15, 2016. • DEQ renders a final decision to approve or disapprove the report no later than January 15, 2017. • Permanent replacement water supplies are provided no later than October 15, 2018. If each of the milestone dates are met, the schedule indicates that project completion can occur in December of 2018 which does not meet the House Bill 630 schedule requirement for permanent replacement water supplies. An opinion of probable cost was developed to provide potable water service to 39 households within the 1/2 mile compliance buffer. The 39 households are served from 35 water line connections as multiple parcels have more than one household per connection. The estimated costs are summarized below: OpinionBelews Creek Steam Station Potable Water Service 39 Households $4,800,000 Potable Water Service per household 1 $123,000 TODewberry Duke Energy Belews Creek Steam Station Phase 11 Potable Water Programmatic Evaluation 2 The potable water connection cost estimate includes a 25% contingency which is deemed consistent with a project at the preliminary engineering level of detail. The cost estimate assumes that 39 households will receive potable water connection for a total project cost of $4,800,000. 19 of the 58 households within the Belews Creek Steam Station compliance buffer have been recommended for installation of an individual filtration system. These homes are located north of the Steam Station on Pine Hall Road. Extending a water line to the 19 homes would require crossing a large water canal and a bridge crossing, which would add significant cost to the project, and would increase water quality degradation at the extremity of the Stokes County system. This report provides additional detail on the Project Approach, Basis of Design, and Site Analysis. Belews Creek Steam Station mapping is provided in Appendix A. The household database is provided in Appendix B. The Belews Creek Steam Station Potable Water Schedule is provided in Appendix C, and the Opinion of Probable Cost is provided in Appendix D. TODewberry Duke Energy Belews Creek Steam Station Phase 11 Potable Water Programmatic Evaluation 3 1. Introduction and Project Approach PROJECT INTRODUCTION During the Phase I programmatic potable water evaluation desktop study, concept level mapping was developed showing the Belews Creek Steam Station location, the potential potable water tie-in location, and potential pipe routing to residents within a 1/2 mile of the compliance boundary. We used the Phase I mapping to develop a concept level cost estimate with a 40% contingency. During this Phase II evaluation sufficient preliminary design work has been performed to prepare a cost estimate with a 25% contingency. This Phase II evaluation is structured to comply with the requirements of North Carolina House Bill 630: Section 13oA- 309.211.(ci), which requires provision of permanent water supply for each household that has a drinking water supply well located within a 1/2 mile radius from the established compliance boundary of a coal combustion residuals impoundment, and is not separated from the impoundment by the mainstem of a river, or other body of water that would prevent the migration of contaminants through groundwater from the impoundment to a well. To address the provisions of House Bill 63o referenced above Dewberry has performed a Phase I screening level evaluation and this Phase II preliminary engineering evaluation of the technical and economic feasibility to supply municipal potable water to residents within a 1/2 mile of the compliance boundary. Preparation of this report is intended to comply with the House Bill 63o requirement to make a report submittal to the North Carolina Department of Environmental Quality (DEQ) by December 15, 2oi6. Using publicly available information Dewberry evaluated the following criteria to perform the Phase II Belews Creek Steam Station preliminary engineering study: • Identified public road right-of-way widths and ownership along the pipe route • Evaluated feasibility to install the proposed water line within the unpaved shoulder of an NC DOT roadway • Documented approximate location of U.S. waters, including possible wetlands shown in the U.S. Fish & Wildlife Service National Wetlands Inventory (as applicable) • Identified potential jurisdictional and permitting authorities to establish permitting needs • Estimated potential easement acquisition areas (estimated square footage and number of parcels affected) • Evaluated potential conflicts with known existing utilities • Estimated the pipeline length and pipe diameter(s) for the water line and the individual service lines • Evaluated the potential need for a water booster pump station or elevated tank to sustain adequate water pressure • Evaluated the water age and potential need for supplemental disinfection • Evaluated the potential need/requirement for fire hydrants and hydrant quantity • Evaluated potential construction methods and challenges • Evaluated potential municipal water system future improvements based on published Capital Improvement Plan (CIP) or published Master Plan TODewberry Duke Energy Belews Creek Steam Station Phase 11 Potable Water Programmatic Evaluation 4 PROJECT APPROACH Dewberry contacted the Duke Energy Community Relations District Manager to discuss the information needed to execute the Phase II evaluations, and to arrange for a subsequent meeting with Walnut Cove and Stokes County. On August 31, 2016 a project review meeting was held at the Walnut Cove Public Library to discuss execution of this Phase II preliminary evaluation and subsequent project execution. Representatives from Duke Energy, Dewberry, Walnut Cove, and Stokes County attended the meeting. The primary purpose of the meeting was to confirm the water distribution system tie-in location, system pressure, pipe size, and water age at the tie -location, capacity limitations, and whether there are future planned water system projects that could impact the Phase II evaluation. We also inquired as to whether any households within a 1/2 mile of the compliance boundary were presently being served by municipal potable water. During Phase I Dewberry obtained municipality mapping of the potable water distribution system and then developed draft maps showing the Belews Creek Steam Station, the respective potable water distribution system tie-in location, and the water line pipe routing. We used the Duke Energy Drinking Water Receptor Surveys for Coal-fired Power Stations developed in 2014 to show compliance boundaries and the water supply wells within a 1/2 mile of the compliance boundary. The maps were prepared using GIS as the native software. During Phase II we developed more detailed mapping based on Stokes County property maps to identify property owners, property parcels, and household addresses within the 1/2 mile compliance buffer. For the Phase II analysis property parcels that were wholly or partly within the compliance buffer were included in the evaluation. Using the Phase II mapping, we performed an additional drive -by observation of the pipe route on September 13, 2o16. Using the Phase II mapping a database of property owners and household locations was developed. We also prepared a proposed project schedule. Dewberry then developed an opinion of probable cost for the installation of piping infrastructure to the potable water tie-in location. We used vendor budgetary costs for the primary capital equipment and used cost factors to estimate the installation costs. We did not obtain Contractor installation cost estimates for this evaluation. Dewberry reviewed the cost data with Duke Energy to obtain concurrence on the methodology and the allowances applied. TODewberry Duke Energy Belews Creek Steam Station Phase 11 Potable Water Programmatic Evaluation 5 2. Phase II Basis of Design The purpose of this section is to document basis of design assumptions that were used to prepare the Belews Creek Steam Station mapping, cost estimate, and schedule. 2.1 POTABLE WATER CONNECTION MAPPING Key assumptions for the potable water connection mapping are as follows: Potable water piping is primarily routed along state roads and will use municipality/county existing easements. There are three areas which will require private easements. 19 households located in the northeastern portion of the compliance buffer are recommended for individual filtration systems. Power transmission line easements will not be used for installation of the potable water piping. 2.2 MUNICIPAL POTABLE WATER CONNECTION OPINION OF PROBABLE COST Key assumptions for the potable water connection cost estimates are as follows: Items 1 and 5 on the cost estimates show 6 inch and 8 inch C-goo PVC, respectively, for the potable water line pipe. The 6 inch and 8 inch diameters are considered adequate pipe sizes to meet the water demand of the households within the compliance buffer. The 6 inch and 8 inch water line pipes are sized to provide fire flow. Items 1 through 11 on the cost estimates show material cost for the piping, valves, and associated fittings. The sum of Items 1 through 11 is shown as a separate line item. A 30% cost factor is then applied to the summed value to estimate the cost to install the pipe, valves, and fittings. The cost estimate quantities are based on the Belews Creek Steam Station mapping and assumptions stated on the cost estimate. The unit costs are based upon vendor budgetary costs and cost data we have from recent similar projects. • The sum of quantities for items 26 and 27 on the cost estimate indicates there are 35 potable water connections. The five 2 inch service taps are for homes greater than approximately 1,000 ft from the water line. The 30 3/4 inch service taps are for homes relatively close to the street. • The number of connections shown in the cost estimate is based upon the Stokes County property maps and drive -by observations. • No commercial/industrial facilities were identified within the 1/2 mile buffer so there is no allowance to provide potable water to such facilities. Items 12 through 22 and items 26 through 3o are installed cost, so a 30% installation cost factor was not applied. Items 23 through 25 are material cost, so a 30% installation cost factor was applied. Items 1 through 3o are summed and shown as a SUBTOTAL. Cost factors are then applied to the SUBTOTAL to estimate the balance of the project costs. We have applied a 25% contingency which is deemed consistent with a preliminary engineering evaluation. Additional assumptions that Dewberry used to prepare the cost estimates are provided as foot notes on the cost estimate Table. Contractor General Conditions are included for the duration of on -site construction phase activities. Easement acquisition includes the cost to compensate land owners for water lines extended down private roads and/or across private property. TODewberry Duke Energy Belews Creek Steam Station Phase 11 Potable Water Programmatic Evaluation 6 3. Site Analysis 3.1 STATION MAPPING AND HOUSEHOLD DATA The Phase II overall map in Appendix A shows the proposed tie-in location to the existing Walnut Cove potable water supply system, indicating that over 5 miles (~27,000 LF) of new potable water piping is required to serve households within the 1/2 mile compliance buffer. Stokes County has verbally agreed to own and operate the new potable water system for the households around the Belews Creek Steam Station. The water will be a combination of well water from the Town of Walnut Cove and municipal water from Forsyth County, as Stokes County does not have its own water treatment plant. The Phase II Site map and sheets in Appendix A were prepared by overlaying Stokes County property maps onto the compliance boundaries detailed in the Duke Energy Drinking Water Receptor Surveys for Coal-fired Power Stations developed in 2014. The Appendix A Site map shows the 1/2 mile compliance buffer and 15 rectangular property map sections.15 sheets were then prepared that show the water line route, individual households, and household service line connections within the 1/2 mile compliance buffer. During the September 13, 2o16 drive -by, Dewberry visually observed households shown in the Appendix A sheet mapping. The household database in Appendix B was created from the Stokes County tax records tied to the GIS shape file which identifies the property owner and the address for each household within the 1/2 mile compliance buffer, including parcels of land with no residents (empty lot). The parcel data listed on the spreadsheets also includes Parcel ID, Land Use, Easement Requirement, and anticipated Water Demand for each property. Review of the mapping from Appendix A allowed for estimates of the required private easement areas around the Steam Station. The potable water line extended to serve residents around the Belews Creek Steam Station will require private easement acquisition in three areas; the length of the water extension down Old Plantation Road as it is a private road, one service line extension on Middleton Loop, and one service line extension on Pine Hall Road. The easement area was calculated by multiplying the length of the water line on private property by 30 feet. The area was then multiplied by 50% of the average land value (per acre) for properties around the Belews Creek Steam Station, providing an estimate of the easement cost. Temporary easements were not included in the calculation. 3.2 FIELD OBSERVATIONS As shown in Appendix A, the water line piping will be installed along state roads, where possible. During the September 13, 2016 drive -by Dewberry did not observe above grade conflicting physical features that are likely to have a significant impact on the construction cost or permitting schedule, with the exception of one railroad crossing. The railroad crossing is at -grade and located on Martin Luther King Jr. Road. Based on our observations and the Phase II mapping, it appears to be technically feasible to install the potable water line in the public road right of way using conventional construction methods. The water line can be installed with conventional methods such as an open trench with pipe bedding material. Approximately eight water line road crossings will be required and up to 20 service line road crossings will be required. Road crossings will be performed by subsurface boring to avoid open road cuts, and traffic impacts. TODewberry Duke Energy Belews Creek Steam Station Phase 11 Potable Water Programmatic Evaluation 7 During the drive -by Dewberry did not observe surface water or apparent wetland infrastructure conflicts. This is consistent with USGS mapping and the U.S. Fish & Wildlife Service National Wetlands Inventory. During the drive -by Dewberry did not observe potential conflicts with known existing utilities. At present the 39 households within the 1/2 mile compliance buffer do not have public water or sewer. Natural gas markers were not spotted during the drive -by; numerous propane tanks were observed on multiple parcels of land. However, residential service natural gas main lines are typically located within the state road right of way and are smaller in diameter than water piping, however, none were identified within the water line planning area. Fiber optic markers were also not observed during the drive -by. Aboveground electric was observed and is not considered an impediment to water line installation. During the site investigation, Dewberry observed the public road right-of-way widths and we have evaluated the feasibility to install the proposed water line within the unpaved shoulder of NC DOT roadway. We noted a few locations where the right of way limitations may make water line installation more time consuming per liner foot of construction but is still deemed technically feasible. In some areas it may be necessary to conduct subsurface utility evaluation and route the water line accordingly. In other areas that we could not readily determine right of way status (public or not) or areas where private property may have been constructed onto right of way, we either provided an allowance for water line easement, or the construction impact is accounted for in the cost estimate as a renovation allowance. Dewberry observed two major water crossings as summarized below: Bridge crossing on Pine Hall Road over the power plant intake canal. The bridge is approximately loo feet above the waterway shown on sheet 14. • Bridge crossing on Pine Hall Road over Belews Creek Steam Station discharge piping. The bridge is approximately three feet above the piping shown on sheet 15. The bridge crossings on Pine Hall Road were not considered due to constructability, cost, and anticipated degradation of water quality at the extremity of the Stokes County system. Therefore, the households beyond the bridge crossings are proposed to receive individual filtration systems. 3.3 OTHER CONSIDERATIONS The water system to be extended into the vicinity of the Belews Creek Steam Station is proposed to be owned and operated by Stokes County. Stokes County operates a purchase water system, which means they purchase and provide water. Stokes County does not have a water treatment plant. Stokes County purchases water from Winston-Salem/Forsyth County Utilities and provides water to Walnut Cove through a metered interconnect. The metered interconnect provides the Town of Walnut Cove with supplemental water supply. Walnut Cove has an existing ground water supply system with existing wells and elevated storage that has sufficient capacity for average daily demand. During above average demand periods, Walnut Cove purchases supplemental water from Stokes County. Walnut Cove has conceptually agreed to allow for another interconnect to extend the Stokes' County water system to serve the Belews Creek Steam Station area. Future operational modifications will be required for Walnut Cove to continue utilizing their ground water system, in conjunction with an increase in supplemental water from Stoke County. The future modifications have not been detailed, but will require automated flow control of the Stokes County supplemental water so that the Walnut Cove system can operate at full capacity, and to prevent overflow of the Walnut Cove water storage tank. An allowance is included in the Phase II cost estimate for installation of an automated flow control system. TODewberry- Duke Energy Belews Creek Steam Station Phase 11 Potable Water Programmatic Evaluation 8 Based on discussions with Winston-Salem/Forsyth County Utilities and Stokes County, the average water age at the western interconnect with Walnut Cove is approximately four days and the disinfection is via chlorine injection as sodium hypochlorite (Liquid Bleach). The chlorine residual is approximately 0.2 mg/L and the Walnut Cove system provides supplemental disinfection as needed to offset the increased water age during times of supplemental water needs. The new proposed interconnect between Walnut Cove and Stokes County is required to extend piping to serve the Belews Creek Steam Station. The water system extension will increase the water age from approximately four days to approximately seven days. To maintain an appropriate disinfection residual, we have included disinfection boosting to compensate for the increased water age. Based upon discussions with Walnut Cove and Stokes County the existing pressure at the proposed Walnut Cove interconnect is approximately 70 psi static pressure at an elevation of 615 ft Above Mean Sea Level (AMSL). The proposed water system extension will serve an area with upper elevations in the 800 — goo ft AMSL range. This static elevation difference of approximately 185 to 285 feet accounts for a pressure drop of approximately 8o to 120 psi. Considering this elevation variation, the friction loss associated with approximately five miles of pipeline, and a planned minimum service pressure of 30 psi, pressure boosting will be required. Therefore, we have included an allowance in the Phase II cost estimate for a pressure booster station. TODewberry Duke Energy Belews Creek Steam Station Phase 11 Potable Water Programmatic Evaluation 9 4. Regulatory Permitting The water line design will be required to adhere to requirements of the following agencies and permitting authorities. Each permit will require a separate set of documentation and will be submitted individually to the respective permitting agency. The timeline for submittal and approval is laid out in the Belews Creek Steam Station Potable Water Schedule in Appendix C. • NCDOT Right-of-way Encroachment Agreement, Primary and Secondary Roads • NCDEQ, Division of Land Quality, Erosion and Sedimentation Control Permit • NCDEQ, Division of Water Resource, Public Water Supply Permit • Railroad Encroachment TODewberry Duke Energy Belews Creek Steam Station Phase 11 Potable Water Programmatic Evaluation 10 5. Schedule The Phase II project schedule is provided in Appendix C. The schedule was prepared in part to show milestone dates needed to comply with House Bill 630 which states the following: • "No later than December 15, 2016 an impoundment owner shall submit information on permanent replacement water supplies proposed to be provided to each household" • "The Department shall evaluate information submitted by the impoundment owner and render a final decision to approve or disapprove the plan, including written findings of fact no later than January 15, 2017" • "As soon as practical, but no later than October 15, 2018 the owner of a coal combustion residual surface impoundment shall establish permanent replacement water supplies" The schedule indicates DEQ report submittal on December 15, 2016 and DEQ approval by January 15, 2017. The schedule includes an initial go day negotiation period for development and execution of a Water Authority/Duke memorandum of understanding (MOU). The schedule is subject to change dependent upon the milestone dates for the MOU, the approval/comments from DEQ, and the resident input regarding permanent water supply choice. The balance of the schedule is deemed typical for a municipal design -bid -build water line improvement project and plans for all households to connect to public potable water. The schedule indicates an end date of December 2018 which does not meet the October 15, 2018 deadline. TODewberry Duke Energy Belews Creek Steam Station Phase 11 Potable Water Programmatic Evaluation 11 6. Opinion of Probable Cost The Phase II opinion of probable cost is provided in Appendix D. The opinion of probable cost was prepared in accordance with the basis of design criteria in Section 2.2 of this report. The opinion of probable cost indicates that the total estimated construction cost is approximately $4,800,000, which equates to approximately $123,000 per household. A 25% contingency is included. The Phase II opinion of probable cost includes individual allocations for the service connection lines and meters (items 23 through 30) that equates to approximately $ii,000 per new connection. We arrived at that allocation as follows: For items 23 and 24 the service line lengths were measured for each household using the Phase II sheet mapping. Item 25 is for miscellaneous fittings associated with the service line connections. For items 26 and 27 the meter/meter box allowance was developed from vendor quotations and from recent bid tabs we have for similar projects. Item 28 is for road crossings where the connection to be served is on the opposite side of the road from the water line. Items 29 and 3o represent site costs associated with approximately 12,000 feet of new service line piping. TODewberry Duke Energy Belews Creek Steam Station Phase 11 Potable Water Programmatic Evaluation 12 Appendix A: Belews Creek Station Phase II Mapping www.dewberry.com November 4, 2016 ,dwe j `: � Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Overall Legend County Boundary Proposed Potable Water Line (Duke) Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Wetlands Duke Energy Plant Railway US Route State Route Stream/Lake Proposed Individual Filtration System N 1 in = 2,500 feet 0 2,500 5,000 Feet November 4, 2016 ,ft e Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 1 Legend County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake #J Parcel Reference Number (Refer to spreadsheet for parcel details) `V 1 in = 200 feet 0 200 400 Feet to Xs_ _ 06 6) �77 T#1 or �' • � - f" •� ��-. F`� r+ i . � �� �'�"++1FT. fie . 4=4 pm,�k :c 'r r- r November 4, 2016 Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 2 Legend ----- County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake #J Parcel Reference Number (Refer to spreadsheet for parcel details) N 1 in = 200 feet 0 200 400 Feet Ow- ,sue— November 4, 2016 ,fte)1 Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 3 Legend County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake ® Parcel Reference Number (Refer to spreadsheet for parcel details) 1 in = 200 feet 0 200 400 Feet AL L s F f n � — 4 1 _ 1 ; Ik f-, � --- :ice �F � � . 1 "TT"" � ti i { �iir ,'� _ '� II I k a � •_ � � '.. November 4, 2016 ,fte) Dewberry- Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 4 Legend ----- County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) =' Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake #J Parcel Reference Number (Refer to spreadsheet for parcel details) 1 in = 200 feet 0 200 400 Feet November 4, 2016 ,ft e Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 5 Legend County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake ® Parcel Reference Number (Refer to spreadsheet for parcel details) N 1 in = 200 feet 0 200 400 Feet November 4, 2016 ,ft e Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 6 Legend County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake ® Parcel Reference Number (Refer to spreadsheet for parcel details) 1 in = 200 feet 0 200 400 Feet 1 �rAL At 4��, 411i,07 - r�r e+4 tqr November 4, 2016 Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 7 Legend County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake ® Parcel Reference Number (Refer to spreadsheet for parcel details) N 1 in = 200 feet 0 200 400 Feet November 4, 2016 ,ft e Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 8 Legend County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake ® Parcel Reference Number (Refer to spreadsheet for parcel details) 1V 1 in = 250 feet 0 250 500 Feet November 4, 2016 ,ft e Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 9 Legend County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake #J Parcel Reference Number (Refer to spreadsheet for parcel details) 1 in = 200 feet 0 200 400 Feet November 4, 2016 ,ft e Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 10 Legend County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake ® Parcel Reference Number (Refer to spreadsheet for parcel details) _,Ie>< -)� 1 in = 200 feet 0 200 400 Feet November 4, 2016 ,ft e Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 11 Legend County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake #J Parcel Reference Number (Refer to spreadsheet for parcel details) + z 1 in = 200 feet 0 200 400 Feet November 4, 2016 ,ft e Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 12 Legend County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake #J Parcel Reference Number (Refer to spreadsheet for parcel details) lv 1 in = 200 feet 0 200 400 Feet November 4, 2016 ,ft e Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 13 Legend County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake ® Parcel Reference Number (Refer to spreadsheet for parcel details) ',, "le>( 1 in = 200 feet 0 200 400 Feet November 4, 2016 ,ft e Dewberry - Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 14 Legend County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake ® Parcel Reference Number (Refer to spreadsheet for parcel details) 1 in = 200 feet 0 200 400 Feet 'T k4 November 4, 2016 ,fte) Dewberry- Duke Energy Dewberry Proj. No. 50081586 Proposed Potable Water Site Preliminary Evaluation Belews Creek Steam Station Sheet 15 Legend ----- County Boundary Proposed Potable Water Line (Duke) Proposed Service Line Compliance Boundary 1/2 Mile Buffer Compliance Boundary Existing Potable Water Line (Town of Walnut Cove) Existing Home (Constructed post Aerial Imagery) Wetlands + Duke Energy Plant Railway Proposed Individual Filtration System State Route Stream/Lake ® Parcel Reference Number (Refer to spreadsheet for parcel details) 1 in = 200 feet 0 200 400 Feet Appendix B: Belews Creek Station Household Data Spreadsheet www.dewberry.com Belews Creek Parcel Spreadsheet Easement Label Parcel ID # Site Address Type of Service Land Use Owner Tax Address Req' Daily Flow Other Notes Required C/O JACQUELINE HAIRSTON PO 1 701329 2481 MIDDLETON LOOP Residential In Use HAIRSTON, J H;HAIRSTON, LENA Gallons/connection Individual filtration system BOX 191 BELEWS CREEK, NC C/O JOHN HAIRSTON 2007 MARTIN 2 701376 2241 MIDDLETON LOOP Residential In Use HAIRSTON, WILLIAM B;HAIRSTON, JOE L LUTHER KING JR RD WALNUT Gallons/connection Individual filtration system COVE, NC 27052 GIBSON, DONALD HENRY;GIBSON, 3 700608 2465 B MIDDLETON LOOP Residential In Use GERALD B;GIBSON, TROY A;GIBSON, JOE PO BOX 6 PINE HALL, NC 27042 Gallons/connection Individual filtration system T ATTN: TAX DEPT PB05B PO BOX 4 9913788 3016 PINE HALL RD Industrial Empty Lot DUKE, POWER COMPANY 1244 CHARLOTTE, NC 28201 5 8809206 2720 PINE HALL RD Residential In Use DURRETT, MARK C PO BOX 148 BELEWS CREEK, NC27009 - Gallons/connection Individual filtration system 6 701203 N/A Empty Lot DURRETT, MARK C PO BOX 148 BELEWS CREEK, NC 27009 7 8805518 1045 OLD PLANTATION RD Residential In Use WILSON, HARRY W III;WILSON, JAYE S 3166 OLD US 52 S PILOT MTN, NC Y 480 Gallons/connection 2 Houses 27041 8 8808449 1140 OLD PLANTATION RD Residential In Use WILSON, TONEY GRAY;WILSON, ANGELA 1140 OLD PLANTATION RD Y 480 Gallons/connection GRACE WALNUT COVE, NC 27052 PO BOX 1007 CHARLOTTE, NC 9 8809400 3195 PINE HALL RD Industrial In Use DUKE ENERGY CORPORATION 28201 10 700604 2766 PINE HALL RD Residential In Use GIBSON, HOWARD LEON III 421 STOKESBURG RD WALNUT Gallons/connection Individual filtration system COVE, NC 27052 C/O JAMES W WATKINS PO BOX 4 11 702346 SR 1909 N/A Empty Lot WATKINS, ANNIE JEWEL ESTATE WALKERTOWN, NC 27051 C/O JACQUELINE HAIRSTON PO 6 Individual filtration 12 701329 2898-2918 PINE HALL RD Residential In Use HAIRSTON, J H;HAIRSTON, LENA BOX 191 BELEWS CREEK, NC Gallons/connection system 27009 13 700220 2832 PINE HALL RD N/A Empty Lot PARIS, COREY R;PARIS, JENNA R 2832 PINE HALL RD BELEWS CREEK, NC 27009 14 701380 SR 1909 N/A Empty Lot DALTON, MARVIN H JR PO BOX 184 WALNUT COVE, NC 27052 15 701147 4067 PINE HALL RD Residential In Use MARTIN, NANNIE D;WELCH, SEBRENA M 4067 PINE HALL RD WALNUT 480 Gallons/connection COVE, NC 27052 16 700828 2451 MIDDLETON LOOP Residential In Use GOOLSBY, EARL COY 2481 MIDDLETON LOOP RD - Gallons/connection Individual filtration system WALNUT COVE, NC 27052 17 700220 2832 PINE HALL RD Residential In Use PARIS, COREY R;PARIS, JENNA R 2832 PINE HALL RD BELEWS - Gallons/connection Individual filtration system CREEK, NC 27009 C/O HELEN GOOLSBY HAIRSTON 18 700851 SR 1909 N/A Empty Lot GOOLSBY, LACY M 867 RANKIN ST WINSTON-SALEM, NC 27101 19 9919875 SR 1909 N/A Empty Lot DALTON, RUTH GOOLSBY 2465 MIDDLETON LOOP RD WALNUT COVE, NC 27052 20 701408 SR 1909 N/A Empty Lot MILLER, ALECIA GERALDINE G PO BOX 1076 WALKERTOWN, NC 27051 PO BOX 883 WALNUT COVE, NC 21 700820 SHELL ROCK RD N/A Empty Lot GOOLSBY, POLLY JOYCE 27052 C/O NORMA GOOLSBY-THOMAS 22 700852 SR 1909 N/A Empty Lot GOOLSBY, NORMAN MITCHELL REV 1103 HONEYSUCKLE DR DENTON, MD 21929 2461 MIDDLETON LOOP RD 23 9919883 2461 MIDDLETON LOOP Residential In Use GOOLSBY, KEITH Gallons/connection Individual filtration system WALNUT COVE, NC 27052 24 8809401 2793 PINE HALL RD Schools In Use WITHERS CHAPELS CHURCH PO BOX 101 PINE HALL, NC 27042 Gallons/student/day Individual filtration system 55 BONEY LANKFORD LOOP RD 25 700857 SR 1909 N/A Empty Lot GOOLSBY, JAMES LEONARD NORLINA, NC 27563 26 700212 2816 PINE HALL RD Residential In Use DURRETT, MARK C PO BOX 148 BELEWS CREEK, NC - Gallons/connection Individual filtration system 27009 2465 MIDDLETON LOOP RD 27 9919877 2465 MIDDLETON LOOP Residential In Use DALTON, RUTH GOOLSBY _ Gallons/connection Individual filtration system WALNUT COVE, NC 27052 WESTMORELAND, DARRELLT 1245 MIDDLETON RD WALNUT 28 8806103 1397 MIDDLETON LOOP Residential In Use REVOCABLE TRUST;WESTMORELAND, 480 Gallons/connection COVE, NC 27052 STEPHANIE C REVOCABLE TRUST 3906 PINE HALL RD WALNUT 29 701319 3906 PINE HALL RD Residential In Use HAIRSTON, JAMES T HEIRS 480 Gallons/connection COVE, NC 27052 30 8801542 1180 OLD PLANTATION RD Residential In Use OLIVER, JENA F 1180 OLD PLANTATION RD Y 480 Gallons/connection WALNUT COVE, NC 27052 PO BOX 1007 CHARLOTTE, NC 31 8809400 3195 PINE HALL RD Industrial Empty Lot DUKE ENERGY CORPORATION 28201 32 8801543 1184 OLD PLANTATION RD Residential In Use BYRD, DAMES MICHAEL 1184 OLD PLANTATION RD 480 Gallons/connection WALNUT COVE, NC 27052 CLOWNEY, AVERY TYRONE;CLOWNEY, 1190 OLD PLANTATION DR 33 9918247 1190 OLD PLANTATION RD Residential In Use Y 480 Gallons/connection VICTORIA M WALNUT COVE, NC 27052 34 8806104 1413 MIDDLETON LOOP Residential In Use WESTMORELAND, DAN 1413 MIDDLETON LOOP RD Y 480 Gallons/connection T;WESTMORELAND, KAREN A WALNUT COVE, NC 27052 4056 PINE HALL RD WALNUT 35 700207 4056 PINE HALL RD Residential In Use DALTON, ALMA H 480 Gallons/connection COVE, NC 27052 36 8805678 3942 PINE HALL RD Residential In Use WILLIAMS, LAURA JANE 3942 PINE HALL RD WALNUT 480 Gallons/connection COVE, NC 27052 Business, Office, Factory 3946 PINE HALL RD WALNUT 37 8805679 3946 PINE HALL RD In Use LCW ASSOCIATES LLC Y 25 Gallons/shift w/o showers COVE, NC 27052 38 9901188 Grave Yard PINE HALL RD N/A Questionable DRY HOLLOW PRIMITIVE BAPT CH - 4011 PINE HALL RD WALNUT - GRAVEYARD COVE, NC 27052 4011 PINE HALL RD WALNUT 39 9901188 4011 PINE HALL RD Schools In Use DRY HOLLOW PRIMITIVE BAPT CH 15 Gallons/student/day COVE, NC 27052 40 8801127 1220 OLD PLANTATION RD Residential In Use DELGARBINO, BRUCE A 1220 OLD PLANTATION RD Y 480 Gallons/connection WALNUT COVE, NC 27052 1270 OLD PLANTATION DR 41 9916420 1270 OLD PLANTATION RD Residential In Use NORMAN, KEVIN E Y 480 Gallons/connection WALNUT COVE, NC 27052 42 701319 3854 PINE HALL RD Residential In Use HAIRSTON, DAMES T HEIRS 3906 PINE HALL RD WALNUT 480 Gallons/connection COVE, NC 27052 1051 OLD PLANTATION RD 43 8805517 1051 OLD PLANTATION RD Residential In Use SECHREST, FRANK O;SECHREST, MARY W 480 Gallons/connection WALNUT COVE, NC 27052 44 8807608 1115 OLD PLANTATION RD Residential In Use RATLIFF, TONY L;RATLIFF, TRUDA G 1115 OLD PLANTATION RD Y 480 Gallons/connection WALNUT COVE, NC 27052 C/OJACQUELINE HAIRSTON PO 45 701329 2898-2918 PINE HALL RD N/A Empty Lot HAIRSTON, J H;HAIRSTON, LENA BOX 191 BELEWS CREEK, NC - 27009 46 8811003 2690 PINE HALL RD Residential In Use DURRETT, MARK C PO BOX 148 BELEWS CREEK, NC - Gallons/connection Individual filtration system 27009 47 8809400 3195 PINE HALL RD N/A Empty Lot 48 8809400 3195 PINE HALL RD N/A Empty Lot 49 702384 SHELL ROCK RD N/A Empty Lot 50 9916122 1235 OLD PLANTATION RD Residential In Use 51 8811489 1085 OLD PLANTATION RD Residential In Use 52 8811002 2690 B PINE HALL RD Residential In Use 53 9900268 MIDDLETOWN RD N/A Empty Lot 54 700207 4056 PINE HALL RD Residential In Use 55 701871 1055 OLD PLANTATION RD Residential In Use 56 8805676 1051 OLD PLANTATION RD Residential In Use 57 700252 3857 PINE HALL RD Residential In Use 58 9914524 3951 PINE HALL RD Residential In Use 59 9908977 3881-3899 PINE HALL RD Residential In Use 60 9910800 3939 PINE HALL RD Residential In Use 61 701581 3981 PINE HALL RD Residential In Use 62 9914525 3965 PINE HALL RD Residential In Use 63 9913440 1020 OLD PLANTATION RD Residential In Use 64 8801128 1230 OLD PLANTATION RD Residential In Use 65 702481 OFF MIDDLETON RD N/A Empty Lot 66 9909170 3921 PINE HALL RD Residential In Use 67 700585 2588 MARTIN LUTHER KING JR RD Residential In Use 68 9908976 1040-1060 GEORGIA RD Residential In Use 69 702481 OFF MIDDLETON RD N/A Empty Lot 70 9917262 OLD PLANTATION RD Residential In Use 71 700606 OFF MIDDLETON LOOP RD N/A Empty Lot 72 9908976 1050 GEORGIA RD N/A Empty Lot 73 700207 1045 DALTON MHP RD N/A Empty Lot PO BOX 1007 CHARLOTTE, NC DUKE ENERGY CORPORATION 28201 PO BOX 1007 CHARLOTTE, NC DUKE ENERGY CORPORATION 28201 333 C EAST MONTCASTLE DR THOMAS, JOHN C;THOMAS, BARBARA T GREENSBORO, NC 27406 1235 OLD PLANTATION DR SHORTELL, JEFFERY ALLEN WALNUT COVE, NC 27052 PO BOX 148 BELEWS CREEK, NC DURRETT, MARK C 27009 HULL, GARY PO BOX 161 PINE HALL, NC 27042 4056 PINE HALL RD WALNUT DALTON, ALMA H COVE, NC 27052 1055 OLD PLANTATION RD COOLEY, JAMES;COOLEY, SAMANTHA WALNUT COVE, NC 27052 SECHREST, FRANK O;SECHREST, MARY 1051 OLD PLANTATION RD WILLIAMS WALNUT COVE, NC 27052 BRATHWAITE, LESLIE R;BRATHWAITE, 1060 GEORGIA RD WALNUT ANGELA D COVE, NC 27052 3951 PINE HALL RD WALNUT BRIDGES, MICHAELJ;BRIDGES, CHERYL COVE, NC 27052 1060 GEORGIA RD WALNUT DALTON, GEORGIA WILLIE ESTATE COVE, NC 27052 PO BOX 201 WALNUT COVE, INC COOPER, DERICK L 27052 3981 PINE HALL RD WALNUT MOORE, HERMAN WILLARD COVE, NC 27052 PO BOX 245 WALNUT COVE, NC MOORE, HERMAN L 27052 PO BOX 873 WALNUT COVE, NC DALTON, JAMES B JR 27052 1220 OLD PLANTATION RD DELGARBINO, BRUCE A WALNUT COVE, NC 27052 2710 WYCLIFF RD RALEIGH, NC MARTIN MARIETTA MATERIALS INC 27607 STEELE, FELICIA DENISE C LOWE;STEELE, 4921 TALPHIN DR WALKERTOWN, SCOTTIE L NC 27051 2268 MARTIN LUTHER KING JR RD BROWN, WILLIAM H;BROWN, WALNUT COVE, NC 27052 ANNIE F 1060 GEORGIA RD WALNUT DALTON, GEORGE WILLIAM COVE, NC 27052 2710 WYCLIFF RD RALEIGH, NC MARTIN MARIETTA MATERIALS INC 27607 WESTMORELAND, DARRELL 1245 MIDDLETON LOOP RD T;WESTMORELAND, STEPHANIE C WALNUT COVE, NC 27052 GIBSON, DONALD HENRY;GIBSON, GERALD B;GIBSON, TROY A;GIBSON, JOE PO BOX 6 PINE HALL, NC 27042 T 1060 GEORGIA RD WALNUT DALTON, GEORGE WILLIAM COVE, NC 27052 4056 PINE HALL RD WALNUT DALTON, ALMA H COVE, NC 27052 Y Y 480 Y 480 Y Y Y Y Y 480 480 480 480 480 480 480 480 480 480 480 480 480 480 480 Gallons/connection Gallons/connection Gallons/connection Individual filtration system Gallons/connection Gallons/connection Gallons/connection Gallons/connection Gallons/connection Gallons/connection Gallons/connection Gallons/connection Gallons/connection Gallons/connection Gallons/connection Gallons/connection Gallons/connection Gallons/connection Gallons/connection 2 Houses 3 Houses GIBSON, DONALD HENRY;GIBSON, 74 700607 OFF MIDDLETON LOOP RD N/A Empty Lot GERALD B;GIBSON, TROY A;GIBSON, JOE PO BOX 6 PINE HALL, NC 27042 T PO BOX 1007 CHARLOTTE, NC 75 8809400 3195 PINE HALL RD N/A Empty Lot DUKE ENERGY CORPORATION 28201 56 EVELYN ST STRATFORD, CT 76 701039 OFF MIDDLETON LOOP RD N/A Empty Lot FULP, SANDY 64970 77 701318 SR 1909 N/A Empty Lot HAIRSTON, JAMES T HEIRS 3906 PINE HALL RD WALNUT COVE, NC 27052 PO BOX 1007 CHARLOTTE, NC 78 8809400 3195 PINE HALL RD N/A Empty Lot DUKE ENERGY CORPORATION 28201 Appendix C: Schedule www.dewberry.com ID Task Name Belews Creek DEQ Report Submittal & Approval Municipality/County Negotiation & Agreement Municipality/County Design Agreement Period Municipality/County System Design (assuming NTP upon agreement) Field Work/Survey 30% Design Development Development of 30% Construction Documents Review of 30% Design 30% Design Review Meeting 60% Design Development Development of 60% Construction Documents Review of 60% Design 60% Design Review Meeting Final Design Development Development of 100% Construction Documents Review of 100% Design 100% Design Review Meeting Easement Development Deed Research Develop Plats Easement Acquisition Permitting Railroad Encroachment NCDEQ Erosion and Sedimentation Control Permit NCDOT Right -of -Way Encroachment Permit (State and District) NCDEQ Water Supply Permit Advertise, Bidding & Contracting NTP Construction of Water Main & Services Substantial Completion, System Testing, & Certification Project Completion Start Thu 12/15/16 Mon 11/14/16 Mon 11/14/16 Mon 2/20/17 Mon 2/20/17 Wed 3/22/17 Wed 3/22/17 Wed 4/19/17 Mon 4/24/17 Tue 4/25/17 Tue 4/25/17 Mon 5/15/17 Mon 5/22/17 Tue 5/23/17 Tue 5/23/17 Thu 6/22/17 Thu 6/29/17 Tue 4/25/17 Tue 4/25/17 Tue 5/23/17 Wed 6/7/17 Fri 6/30/17 Fri 6/30/17 Fri 6/30/17 Fri 6/30/17 Fri 6/30/17 Wed 12/27/17 Fri 3/2/18 Mon 3/5/18 Fri 11/9/18 Fri 12/7/18 Finish Sun 1/15/17 Mon 2/13/17 Mon 2/13/17 Fri 7/21/17 Tue 3/21/17 Mon 4/24/17 Tue 4/18/17 Mon 4/24/17 Mon 4/24/17 Mon 5/22/17 Fri 5/12/17 Mon 5/22/17 Mon 5/22/17 Thu 6/29/17 Wed 6/21/17 Thu 6/29/17 Thu 6/29/17 Fri 7/21/17 Tue 5/9/17 Tue 6/6/17 Fri 7/21/17 Tue 12/26/17 Tue 12/26/17 Tue 8/29/17 Tue 9/19/17 Tue 10/10/17 Fri 3/2/18 Fri 3/2/18 Thu 11/8/18 Fri 12/7/18 Fri 12/7/18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Project: Belews Creek Steam Station Proposed Schedule Manual Summary Rollup m 16 , I Half 1, 2017 Half 2, 2017 , I Half 1, 2018 3/2 2, Half 1, 12/7 Page 1 Appendix D: Opinion of Probable Cost www.dewberry.com FINAL Opinion of Probable Cost Belews Creek Steam Station Potable Water Connection Item Material Unit QQt y Unit Cost Extended Cost Main 1 6-inch C-900 PVC Pipe LF 10,000 $ 7.00 $ 70,000 2 6-inch Tee EA 1 $ 850 $ 850 3 6-inch Gate Valve w/Box (assume three at every tee and one per 5,000 LF) EA 5 $ 750 $ 3,750 4 6-inch Misc Fittings (Assume 2 fittings per appurtenance plus 1 fitting per 1000 LF pipe times 80# per fitting) LB 1,600 $ 4.00 $ 6,400 5 8-inch C-900 PVC Pipe LF 17,000 $ 10.00 $ 170,000 6 8-inch Tee EA 3 $ 1,000.00 $ 3,000 7 8-inch Gate Valve w/Box (assume three at every tee and one per 5,000 LF) EA 13 $ 1,200.00 $ 15,600 8 8-inch Misc Fittings (Assume 2 fittings per appurtenance plus 1 fitting per 1000 LF pipe times 100# per fitting) LB 4,300 $ 4.00 $ 17,200 9 Automatic Flushing Devices EA 4 $ 8,000 $ 32,000 10 Fire Hydrant EA 27 $ 6,000 $ 162,000 11 1-inch Air Release Valve and Manhole (at highpoints in main) EA 2 $ 2,200 $ 4,400 Subtotal Materials/Equipment: $ 485,200 Installation (% of Material/Equipment): 30% $ 145,600 12 Clearing & Grubbing LF 27,000 $ 3.50 $ 94,500 13 Excavation and Backfilling for Trench LF 27,000 $ 18.00 $ 486,000 14 Pipe Bedding Material (#67 Stone - assumed for 25% of pipe) CY 625 $ 35.00 $ 21,900 15 Railroad Crossing (Casing, Piping, Spiders and Installation) EA 1 $ 50,000 $ 50,000 16 Rural Road Crossing for Main (Casing, Piping, Spiders and Installation) EA 8 $ 20,000 $ 160,000 17 Erosion Control Measures (Silt Fence/Check Dams based on feet of pipe) LF 27,000 $ 4.50 $ 121,500 18 Testing, Disinfection, Clean Up, Seed and Mulch (Assume: 25-ft impacted area) LF 27,000 $ 8.50 $ 229,500 19 Connection to Existing Waterline EA 1 $ 5,000 $ 5,000 20 Traffic Control LS 1 $ 24,000 $ 24,000 21 Chlorine and Pressure Booster Station LS 1 $ 500,000 $ 500,000 22 Automatic Flow Control LS 1 $ 100,000 $ 100,000 Services Connections/Lines 23 2-inch PVC Pipe LF 5,200 $ 4.75 $ 24,700 24 3/4-inch PVC Pipe LF 6,600 $ 3.00 $ 19,800 25 Misc Fittings for Service Connections (valves, fittings, etc.) EA 35 $ 150 $ 5,300 Subtotal Materials/Equipment: $ 49,800 Installation (% of Material/Equipment): 30% $ 15,000 26 2-inch Services Taps, Meters, Meter Boxes and Misc. Connections to Main Line EA 5 $ 6,120 $ 30,600 27 3/4-inch Services Taps, Meters, Meter Boxes and Misc. Connections to Main Line EA 30 $ 3,000 $ 90,000 28 Road Crossing for Services - (Jetting/bore, Casing, and Installation) EA 20 $ 1,500 $ 30,000 29 Excavation and Backfilling for Service Trench LF 11,800 $ 10.00 $ 118,000 30 Flush, Clean Up, Seed and Mulch (Assume: 5-ft impacted area) LF 11,800 $ 4.00 $ 47,200 SUBTOTAL $ 2,804,000 Sub -Total FOB Allowance (% of Material/Equipment): 2% $ 11,000 Renovation Allowance (% of Material/Equipment): S% $ 27,000 Sub -Total $ 2,842,000 Contractor Overhead and Profit: 15% $ 427,000 Contractor General Conditions: MONTH 9 $ 20,000 $ 180,000 Sub -Total: $ 3,449,000 Contingency: 25% $ 863,000 Sub -Total: $ 4,312,000 Design, Bid Phase, and Construction Phase Engineering Services 10% $ 432,000 Easements Acquistion (Permanent) $ 40,000 TOTAL ESTIMATED CAPITAL COST: $ 4,800,000 Notes: 1.) Renovation Allowance to account for private property refurbishment (signs, fences, etc.) 2.) Number of Service Taps taken from field evaluation and property records. 3.) Permanent Easement Acquisition based on 50% of average area property tax value. 4.) Temporary easements are not included in this estimate. 5.) No significant rock excavation, water crossings, wetlands, or other abnormal working environment included. 6.) Opinion of Probable Cost dated November 2016; cost may vary depending upon escalation at time of construction. 7.) Piping footage may change with final design. 11/3/2016 FINAL If Dewberry