Sutton Proposed Permanent Water Solution_20161208

Permanent Water Supply Proposal to DEQ - Sutton
Sutton Steam Station
New Hanover County
14 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, all of the locations identified by
Duke Energy around Sutton are business, offices, factories, or industrial 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 buildings on the industrial
properties may be serviced by one connection.
The Cape Fear Public Utility Authority (CFPUA) already has a municipal line located along
Metro Circle and portions of Fredrickson Road; therefore six (6) of the locations would require
only service lines ranging in distance from 100 feet (on Fredrickson Road) to 730 feet (to the
industry located on Transcom Ct). To serve the remaining eight (8) locations, water line
extensions would be required on US-421 (approximately 1.7 miles) and on Fredrickson Road
(approximately 840 feet), and a new line would be required on Sutton Lake Road (approximately
225 feet).
Dewberry estimates that it will cost $1,950,000, or $139,000 for each location to connect to the
CFPUA system. Even if water connections are provided to those locations only requiring
service line connections, the cost would be approximately $356,000, or $59,400 each. For this
reason, Duke Energy recommends water treatment systems for all 14 locations.
The Dewberry evaluation includes a project schedule based on their past experience installing
public water systems. The preliminary project schedule indicates that a public water supply
could be available through the CFPUA by April 2018. From initial discussions with the CFPUA
and an evaluation of the system by Dewberry, the CFPUA has adequate water capacity and the
water quality could be maintained. If water treatment systems are installed, Duke anticipates
that all systems will be installed by the end of 2017.
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
DUKE
�, ENERGY:

Permanent Water Supply Proposal to DEQ - Sutton
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 residential ion filtration treatment system. The final water treatment
system will be based upon the results of field studies. Treatment systems will be sized to meet
the potable water needs of the business and industrial locations.
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, or the final
number of households opting for public water supply, 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 - Sutton
Ion Filtration Water
Treatment System
Total Number Recommended
14
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 quality and
N/A
supply
Required acceptance level to
achieve targeted cost per eligible
N/A
household (<$35k/household)
Location of households relative to
N/A
existing municipal water lines
Other considerations
Costs
Total Installation Costs
8,000 - $140,000
Approximate cost per eligible
7,000 - $10,000
Lf$
household
Annual Maintenance Costs
$7,000 - $28,000
Maintenance cost per household
$500 - $2,000
annually
Non-Duke Costs
Total estimated water bills month)
N/A
Estimated water bills monthly per
N/A
household
Ongoing municipality costs for
maintenance and flushing due to
N/A
low-flow/low-usage
Total Costs
Duke and Non -Duke
Total estimated cost for all eligible
$168,000 - $420,000
neighbors over 10 years
Total estimated cost for each eligible e, o nnn Qwn nnn
neighbors over 10 years
(� DUKE
ENERGY,.

Dewberry
Sutton Steam Station Phase II
Potable Water Programmatic
Evaluation
Duke Energy
December 8, 2016
im
M
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....................................................................................9
5. Schedule........................................................................................................10
6. Opinion of Probable Cost............................................................................11
Appendix A: Sutton Station Phase II Mapping
Appendix B: Sutton Station Household Data Spreadsheet
Appendix C: Schedule
Appendix D: Opinion of Probable Cost
10 Dewberry® Duke Energy 1 Sutton 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.(ci) 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, 2o16.
On December 1, 2016 a project review meeting was held at the Cape Fear Public Utility Authority (CFPUA) office (the originally
scheduled review meeting was cancelled due to hurricane Matthew related emergencies). Representatives from Duke Energy,
Dewberry, and CFPUA attended the meeting.
Detailed Phase II mapping was developed using New Hanover County property maps that show each household in the 1/2 mile
compliance buffer. Dewberry visually observed the households shown on the Phase II mapping on December 1, 2016.
A database was developed using New Hanover 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.
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, 2o18.
If each of the milestone dates are met, the schedule indicates that project completion can occur in April of 2018 which meets
the House Bill 630 schedule requirement for permanent replacement water supplies.
An opinion of probable cost was developed to provide potable water service to 14 households within the 1/2 mile compliance
buffer. The estimated costs are summarized below:
The potable water connection cost estimate includes a 25% contingency which is deemed consistent with a project at the
preliminary engineering level of detail.
TODewberry Duke Energy Sutton Steam Station Phase 11 Potable Water Programmatic Evaluation 2

This report provides additional detail on the Project Approach, Basis of Design, and Site Analysis. Sutton Steam Station
mapping is provided in Appendix A. The database is provided in Appendix B. The Sutton Steam Station Potable Water
Schedule is provided in Appendix C, and the Opinion of Probable Cost is provided in Appendix D.
10 Dewberry® Duke Energy 1 Sutton Steam Station Phase 11 Potable Water Programmatic Evaluation 13

1. Introduction and Project Approach
PROJECT INTRODUCTION
During the Phase I programmatic potable water evaluation desktop study, concept level mapping was developed showing the
Sutton 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 radius of the compliance boundary. The Phase II evaluation results will be submitted to the North
Carolina Department of Environmental Quality (DEQ) by December 15, 2016 as required by House Bill 630.
Using publicly available information Dewberry evaluated the following criteria to perform the Phase II Sutton 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 Sutton 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 the local water purveyor, the CFPUA.
A project review meeting was held on December 1, 2016 at the CFPUA offices in Wilmington, NC to discuss execution of this
Phase II preliminary evaluation and subsequent project execution (the originally scheduled review meeting was cancelled due
to hurricane Matthew related emergencies). Representatives from Duke Energy, Dewberry, and CFPUA 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 quality at the tie -location, capacity limitations, and whether there are future planned water system projects that
could impact the Phase II evaluation. A drive -by observation of the 1/2 mile compliance area was performed December 1, 2o16.
During Phase I Dewberry obtained municipality mapping of the potable water distribution system and then developed draft
maps showing the Sutton 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 New Hanover County property maps to identify property
owners and household addresses within the 1/2 mile compliance buffer.
Using the Phase II mapping a database of property owners and household locations was developed. Dewberry also contacted
the CFPUA to confirm residents along the existing water lines within the compliance buffer who are connected to the system.
This information allowed for identification of residents who were located along the existing water line but not connected to the
water system. We also prepared a 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 Sutton 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 Sutton Steam Station
mapping, opinion of cost, and schedule.
2.1 POTABLE WATER CONNECTION MAPPING
Key assumptions for the potable water connection mapping are as follows:
Potable water piping is routed along state roads and will use municipality/county existing easements where possible.
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:
Item 1 on the cost estimate shows 8 inch C-goo PVC for the potable water line pipe. The 8 inch diameter is considered a
conservative pipe size to meet the water demand of the households within the compliance buffer and complies with the
CFPUA design standards, as discussed during the December 1, 2o16 meeting with CFPUA.
Items 1 through 7 on the cost estimate show material cost for the piping, valves, and associated fittings. The sum of Items 1
through 7 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 Sutton 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 20 and 21 on the cost estimate indicates there are 14 potable water connections. Each of
the 14 connections is proposed to be connected to a two inch service tap since each connection is a commercial or
industrial facility.
• The number of connections shown in the cost estimate is based upon the New Hanover County property maps, drive -by
observations, and from exclusion of customers that are presently being served with CFPUA water.
Items 8 through 16 and items 20 through 25 are installed cost, so a 30% installation cost factor was not applied.
Items 17 through 19 are material cost, so a 30% installation cost factor was applied.
• Items 1 through 25 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.
TODewberry Duke Energy Sutton Steam Station Phase 11 Potable Water Programmatic Evaluation 6

3. Site Analysis
3.1 STATION MAPPING AND HOUSEHOLD DATA
The Phase II overall mapping in Appendix A shows two proposed tie-in locations to the existing CFPUA potable water supply
system, indicating that approximately two miles of new potable water piping is required to serve households within the 1/2
mile compliance buffer. The proposed new connections are all commercial or industrial facilities.
CFPUA has verbally agreed to own the infrastructure and manage the water supply, operation and maintenance (O&M), and
metering/billing of water use for the expanded potable water system and service connections.
The Phase II Site map and sheets in Appendix A were prepared by overlaying New Hanover 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 six rectangular sheet map sections. These six
sheets illustrate the area of interest and the water line route and service line connections within the 1/2 mile compliance buffer.
The database in Appendix B was created from the New Hanover 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 include Parcel ID, Land Use, Easement Requirement,
and anticipated Water Demand for each property.
3.2 FIELD OBSERVATIONS
As shown in Appendix A, the water line piping will be installed along state roads, where possible. During the December 1, 2o16
drive -by Dewberry did not observe rail road crossings or other above grade conflicting physical features that are anticipated to
have a significant impact on the construction cost or schedule.
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 or along the side of the private roads using conventional construction methods, such as an open trench
with pipe bedding material. Approximately seven service line road crossings will be required with one water line road crossings
anticipated. Road crossings are planned to be subsurface boring to avoid open road cuts, and traffic impacts.
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 14 households
within the 1/2 mile compliance buffer do not have public water. Natural gas main markers were observed during the drive -by,
but are typically located within the state road right of way and are smaller in diameter than water piping, therefore they would
not cause a significant conflict. Fiber optic markers were also observed during the drive -by. Aboveground electric was observed
and therefore not considered an impediment to water line installation.
Dewberry observed the public road right-of-way and private road widths and evaluated the feasibility to install the proposed
water line within the unpaved shoulder of NC DOT roadway or within the private road shoulder. In areas that we could not
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
TODewberry Duke Energy Sutton Steam Station Phase 11 Potable Water Programmatic Evaluation 7

renovation allowance. Highway 421 is a four lane US Highway and considered limited access right of way in certain areas.
Therefore, depending upon final design NCDOT permitting may be challenging in certain areas.
3.3 OTHER CONSIDERATIONS
CFPUA is a large water system who owns the infrastructure, manages the water supply, and meters and bills for water use. The
area around the Sutton Steam Station is served by the Sweeney Water Treatment Plant. The Sweeney Plant sources its water
from the Cape Fear River.
Based upon our research and discussions with CFPUA, a 12-inch potable water main currently exists along the west right of
way of Highway 421 South terminating near the intersection with I-140 (as shown in Appendix A — Sheet 5). Similarly an 8-
inch water main extends from Sutton Plant Road north along Fredrickson Road to Metro Circle (as shown in Appendix A —
Sheet 6). CFPUA also has a raw water main installed within the East right-of-way along Highway 421 North.
CFPUA estimates the system static pressure generally ranges from 50-55 psi. According to CFPUA, a disinfection residual
concentration between 0.5 ppm and 1.o ppm is maintained in the area and the water age is controlled based on chlorine
residuals and flushing. Automatic flushing devices are included to maintain an appropriate disinfection residual and prevent
further disinfection by-product formation in this area.
CFPUA, in partnership with New Hanover County, is presently in detail design phase to install a new 16 inch water main along
the US 421 right-of-way northward to the Pender County line. The new water main could provide potable service for the four
proposed new connections along US 421 shown on Appendix A: Sheets 1 and 3. CFPUA stated that construction funding has
not been approved by New Hanover County and CFPUA is not certain when the construction phase would begin. In any case
construction will likely not be complete by the HB 63o deadline of October 15, 2018. Since the new CFPUA planned water main
extension will not meet the HB 63o deadline, we have included installation of a new 8 inch water main to serve the four
proposed connections along US 421. The alignment of this new 8 inch water main will have to coordinated with CFPUA design
plans for the 16 inch water main.
CFPUA also stated that the current system pressure in the area near the Sutton Steam Station has limited fire flow (generally
around 500 gpm). While CFPUA has a comprehensive water distribution system and provides fire flow through most of its
system, according to Section 0266o, paragraph 2.05.8A of the CFPUA Water Distribution Standards: "CFPUA does not
guarantee adequate fire flow for protection of life or property". Paragraph 2.05.8A further states that a facility may choose to
utilize potable water service for fire protection provided specified configurations are followed. Since HB 63o does not require
fire flow and since CFPUA provides for elective fire protection, this evaluation assumes that the four facilities along US 421 will
elect to receive potable water service and will elect to keep their existing fire protection systems. So this evaluation has not
included infrastructure modifications to provide fire flow protection other than installation of fire hydrants at typical intervals.
TODewberry- Duke Energy Sutton Steam Station Phase 11 Potable Water Programmatic Evaluation 8

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 presented in the Sutton Steam Station Potable Water Schedule detailed 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
TODewberry Duke Energy Sutton Steam Station Phase 11 Potable Water Programmatic Evaluation 9

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 April 2o18 which meets the October
15, 2018 deadline.
TODewberry Duke Energy Sutton Steam Station Phase 11 Potable Water Programmatic Evaluation 10

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 $1,950,000, which equates
to approximately $139,000 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 17
through 25) that equates to approximately $30,00o per new connection. We arrived at that allocation as follows:
For items 17 and 18 the service line lengths were measured for each household using the Phase II sheet mapping. Item 19
is for miscellaneous fittings associated with the service line connections.
For items 20 through 21 the meter/meter box allowance was developed from vendor quotations and from recent bid
tabulations for similar projects.
Item 22 is for road crossings where the household to be served is on the opposite side of the road from the water line.
Items 23 and 24 represent site costs associated with approximately 5,400 feet of new service line piping.
Item 25 represents the System Development Fees required for two inch connections to the CFPUA system.
TODewberry Duke Energy Sutton Steam Station Phase 11 Potable Water Programmatic Evaluation 11

Appendix A: Sutton Station Phase II
Mapping
www.dewberry.com

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December 06, 2016
et' Dewberry -
Duke Energy
Dewberry Proj. No. 50081776
Proposed
Potable Water Site
Preliminary Evaluation
Sutton Steam Station
Overall
Legend
----- County Boundary
Compliance Boundary 1/2 Mile Buffer
Proposed Potable Water Line
(Duke)
Compliance Boundary
Existing Potable Water Line
(Cape Fear Public Utility Authority)
Wetlands
Duke Energy Plant
Railway
State Route
Stream/Lake
#J Parcel Reference Number
(Refer to spreadsheet for parcel details)
N
1 in = 1,500 feet
0 1,500 3,000
Feet

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December 06, 2016
Dewberry -
Duke Energy
Dewberry Proj. No. 50081776
Proposed
Potable Water Site
Preliminary Evaluation
Sutton 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
(Cape Fear Public Utility Authority)
Wetlands
Duke Energy Plant
Railway
State Route
Stream/Lake
Parcel Reference Number
(Refer to spreadsheet for parcel details)
^�'X
1 in = 200 feet
0 200 400
Feet

December 06, 2016
Dewberry -
Duke Energy
Dewberry Proj. No. 50081776
Proposed
Potable Water Site
Preliminary Evaluation
Sutton 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
(Cape Fear Public Utility Authority)
Wetlands
Duke Energy Plant
Railway
State Route
Stream/Lake
® Parcel Reference Number
(Refer to spreadsheet for parcel details)
"�' X
1 in = 200 feet
0 200 400
Feet

December 06, 2016
Dewberry -
Duke Energy
Dewberry Proj. No. 50081776
Proposed
Potable Water Site
Preliminary Evaluation
Sutton 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
(Cape Fear Public Utility Authority)
Wetlands
Duke Energy Plant
Railway
State Route
Stream/Lake
Parcel Reference Number
(Refer to spreadsheet for parcel details)
^�' X
1 in = 200 feet
0 200 400
Feet

raw
Fredrickson Rd
_ - -A
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f - _
December 06, 2016
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Dewberry
Duke Energy
31 Dewberry Proj. No. 50081776
Proposed
Potable Water Site
Preliminary Evaluation
Sutton Steam Station
wW Sheet 4
ww
_ ww
Legend
zz
=�--� ----- County Boundary
Proposed Potable Water Line
(Duke)
n Proposed Service Line
Compliance Boundary 1/2 Mile Buffer
r' Compliance Boundary
8; Existing Potable Water Line
(Cape Fear Public Utility Authority)
Wetlands
Duke Energy Plant
Railway
State Route
Stream/Lake
16 Parcel Reference Number
(Refer to spreadsheet for parcel details)
1 in = 200 feet
0 200 400
� Feet

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December 06, 2016
Dewberry -
Duke Energy
Dewberry Proj. No. 50081776
Proposed
Potable Water Site
Preliminary Evaluation
Sutton 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
(Cape Fear Public Utility Authority)
Wetlands
Duke Energy Plant
Railway
State Route
Stream/Lake
Parcel Reference Number
(Refer to spreadsheet for parcel details)
^�'X
1 in = 200 feet
0 200 400
Feet

December 06, 2016
Dewberry -
Duke Energy
Dewberry Proj. No. 50081776
Proposed
Potable Water Site
Preliminary Evaluation
Sutton 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
(Cape Fear Public Utility Authority)
Wetlands
Duke Energy Plant
Railway
State Route
Stream/Lake
® Parcel Reference Number
(Refer to spreadsheet for parcel details)
"�' X
1 in = 200 feet
0 200 400
Feet

Appendix B: Sutton Station
Household Data Spreadsheet
www.dewberry.com

Sutton Steam Station Parcel Spreadsheet
Label
Parcel ID
Site Address
Type of Service
Land Use
Owner Name
Tax Address
city
State
Business, Office, Factory
7
R03200-002-001-007
235
SUTTON LAKE RD
w/o showers
In Use
EZZELL TRUCKING INC
PO BOX 67 0
HARRELLS
NC
Business, Office, Factory
2
R03200-002-001-026
221
SUTTON LAKE RD
w/o showers
In Use
221 SUTTON LLC
221 SUTTON LAKE RD
WILMINGTON
NC
Business, Office, Factory
19
R03200-002-014-000
3506
FREDRICKSON RD
w/o showers
In Use
MATTHEWS HANSEN STONE GERTRUDE
321 WINDEMERE RD
WILMINGTON
NC
9
R03200-002-029-000
3601
FREDRICKSON RD
Industrial
In Use
QUARLES PETROLEUM INC
SUITE 200 1701 FALL HILL AVE
FREDERICKSBURG
VA
Business, Office, Factory
3
R03200-002-013-000
218
ROYMAC DR
w/o showers
In Use
PORTERFIELDJ CJUDY C
309 SE RILEY ST
BOLIVIA
NC
Business, Office, Factory
25
R03200-001-036-000
3813
N 421 HWY
w/o showers
In Use
OLD NORTH STATE PROPERTIES LLC
SUITE 200 3807 PEACHTREE AVE
WILMINGTON
NC
Business, Office, Factory
23
R03200-002-025-000
331
METRO CIR
w/o showers
In Use
ABSOLUTE PROPERTIES OF THE CAROLINAS LLC
331 METRO CIR
WILMINGTON
NC
Business, Office, Factory
5
R03200-002-023-000
212
TRANSCOM CT
w/o showers
In Use
BETWEEN THE RIVERS LLC
212 TRANSCOM CT
WILMINGTON
NC
Business, Office, Factory
32
R03200-001-034-000
3881
N 421 HWY
w/o showers
In Use
WIL FERGIE LLC
PO BOX 10810 0
RALEIGH
NC
Business, Office, Factory
17
R03200-002-015-000
307
METRO CIR
w/o showers
In Use
MAOLA MILK & ICE CREAM CO
5500 CHESTNUTAVE
NEWPORT NEWS
VA
35
R02400-001-001-000
4113,4301
N 421 HWY
Industrial
In Use
INVISTA S.A.R.L.
4123 E 37TH ST
WICHITA
KS
Business, Office, Factory
28
R03200-001-038-000
3857
N 421 HWY
w/o showers
In Use
MASTEC NORTH AMERICA INC
FLOOR 12 800 S DOUGLAS RD
CORAL GABLES
FL
6
R02400-001-004-000
230
SUTTON LAKE RD
Industrial
In Use
S T WOOTEN CORP
PO BOX 2408 0
WILSON
NC
3505
FREDRICKSON RD/ TRANSCOM
Business, Office, Factory
13
R03200-002-001-013
/200,202,203,205
CT
w/o showers
In Use
M2 LLC
704 PILOTS RIDGE RD
WILMINGTON
NC
1
R03200-002-022-000
3782
FREDRICKSON RD
N/A
Empty Lot
CLEMMONS PAUL P
522 GLEN CANNON DR
PISGAH FOREST
NC
4
R03200-001-033-000
3871
N 421 HWY
N/A
Empty Lot
HWY 421 PROPERTIES LLC
SUITE 200 3807 PEACHTREE AVE
WILMINGTON
NC
8
R03200-002-028-000
363
METRO CIR
N/A
Empty Lot
ROYMAC PARTNERSHIP
1938 S LIVE OAK PKY
WILMINGTON
NC
10
R03200-002-033-000
3535
FREDRICKSON RD
N/A
Empty Lot
SPELLTERRY ALFRED PAMELA SUTTON
PO BOX 310 0
AUTRYVILLE
INC
11
R03200-002-030-000
364
METRO CIR
N/A
Empty Lot
ROYMAC PARTNERSHIP
1938 S LIVE OAK PKY
WILMINGTON
NC
12
R03200-002-031-000
340
METRO CIR
N/A
Empty Lot
ROYMAC PARTNERSHIP
1938 S LIVE OAK PKY
WILMINGTON
NC
14
R03200-002-026-000
339
METRO CIR
N/A
Empty Lot
PARKER INVESTMENTS USA LLC
1504 SUNSET AVE
CLINTON
NC
15
R03200-002-032-000
310
METRO CIR
N/A
Empty Lot
ROYMAC PARTNERSHIP
1938 LIVE OAK PKY
WILMINGTON
NC
16
R03200-002-027-000
347
METRO CIR
N/A
Empty Lot
SAUNDERS & SAUNDERS LLC
PO BOX 1035 0
WRIGHTSVILLE BEACH
NC
18
R03200-001-035-000
3901
N 421 HWY
N/A
Empty Lot
WIL FERGIE LLC
PO BOX 10810 0
RALEIGH
NC
20
R02300-002-001-000
249
SUTTON LAKE RD
Duke
In Use
CAROLINA POWER & LIGHT CO
PO BOX 1551 0
RALEIGH
NC
Business, Office, Factory
21
R03200-002-001-011
3405
FREDRICKSON RD
Empty Lot
NEW HAN CNTY
SUITE 190 230 GOVERNMENT CENTER DR
WILMINGTON
NC
w/o showers
22
R03200-002-034-000
323
METRO CIR
N/A
Empty Lot
ROYMAC BUSINESS PARK COMMUNITY ASSN INC
PO BOX 209 0
WILMINGTON
NC
24
R03200-002-024-000
315
METRO CIR
N/A
Empty Lot
ROYMAC PARTNERSHIP
1938 S LIVE OAK PKY
WILMINGTON
NC
26
R03200-001-017-000
3829
N 421 HWY
N/A
Empty Lot
HOECHST CELANESE POLYESTER INT
PO BOX 2936 0
WICHITA
KS
27
R03200-002-001-006
217
SUTTON LAKE RD
N/A
Empty Lot
DIROSSE ENTERPRISES LLC
PO BOX 12661 0
WILMINGTON
NC
29
R03200-001-040-000
3875
N 421 HWY
N/A
Empty Lot
CAPE FEAR INVESTMENT & DEV LLC
1611 CASTLE HAYNE RD
WILMINGTON
NC
30
R03200-001-018-000
207
SUTTON LAKE RD
N/A
Empty Lot
REM SERVICES INC
PO BOX 33424 0
CHARLOTTE
NC
31
R03200-002-001-003
3515
N 421 HWY
Industrial
In Use
SOUTH ATLANTIC SERV INC
PO BOX 1886 0
WILMINGTON
NC
Business, Office, Factory
33
R03200-002-001-008
3327
FREDRICKSON RD
w/o showers
In Use
OLD DOMINION FREIGHT LINE INC
500 OLD DOMINION WAY
THOMASVILLE
INC
34
R03200-004-002-000
201
SUTTON STEAM PLANT RD
N/A
Empty Lot
CAROLINA POWER & LIGHT CO
PO BOX 1551 0
RALEIGH
NC
36
R02400-001-042-000
4113,4301
N 421 HWY
Industrial
Empty_ Accounted
SEAMIST PROPERTIES LLC
SUITE 200 3807 PEACHTREE AVE
WILMINGTON
NC
37 R02400-001-040-000 4101 N 421 HWY N/A Empty Lot S T WOOTEN CORPORATION 3801 BLACK CREEK RD WILSON INC
38 R02400-001-043-000 3941 N 421 HWY N/A Empty Lot SEAMIST PROPERTIES LLC SUITE 200 3807 PEACHTREE AVE WILMINGTON NC
39 R02400-001-042-000 4113 N 421 HWY N/A Empty Lot SEAMIST PROPERTIES LLC SUITE 200 3807 PEACHTREE AVE WILMINGTON INC
40 R02400-001-044-000 4113 N 421 HWY N/A Empty Lot SEAMIST PROPERTIES LLC SUITE 200 3807 PEACHTREE AVE WILMINGTON INC
Easment
Req' Daily Flow Notes
Required
25
Gallons/shift/day
25
Gallons/shift/day
25
Gallons/shift/day
35
Gallons/shift/day
25
Gallons/shift/day
25
Gallons/shift/day
25
Gallons/shift/day
25
Gallons/shift/day
25
Gallons/shift/day
25
Gallons/shift/day
35
Gallons/shift/day Tax records show Parcel 35 and
36 are owned by two entities
25
Gallons/shift/day
35
Gallons/shift/day
25
Gallons/shift/day
Tax records show Parcel 35 and
36 are owned by two entities

Appendix C: Schedule
www.dewberry.com

Task Name
Sutton DEQ Report Submittal & Approval
Municipality/County Negotiation & Agreement
Municipality/County Design Agreement Period
Municipality/County System Design (assuming NTP within 30 days of
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
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
Mon 3/13/17
Mon 3/13/17
Fri 4/7/17
Tue 4/11/17
Wed 4/12/17
Wed 4/12/17
Mon 5/8/17
Fri 5/12/17
Mon 5/15/17
Mon 5/15/17
Fri 6/9/17
Tue 6/13/17
Wed 4/12/17
Wed 4/12/17
Mon 4/24/17
Tue 5/9/17
Wed 6/14/17
Wed 6/14/17
Wed 6/14/17
Wed 6/14/17
Tue 9/26/17
Fri 11/24/17
Mon 11/27/17
Tue 3/27/18
Tue 4/24/18
Finish
Sun 1/15/17
Mon 2/13/17
Mon 2/13/17
Tue 6/13/17
Fri 3/10/17
Tue 4/11/17
Thu 4/6/17
Tue 4/11/17
Tue 4/11/17
Fri 5/12/17
Fri 5/5/17
Fri 5/12/17
Fri 5/12/17
Tue 6/13/17
Thu 6/8/17
Tue 6/13/17
Tue 6/13/17
Tue 5/23/17
Fri 4/21/17
Mon 5/8/17
Tue 5/23/17
Mon 9/25/17
Mon 8/14/17
Mon 9/4/17
Mon 9/25/17
Fri 11/24/17
Fri 11/24/17
Mon 3/26/18
Tue 4/24/18
Tue 4/24/18
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
Project: Sutton Steam Station Manual Summary Rollup
Proposed Schedule
3rd Quarter 11st Quarter
3rd Quarter . 11st Quarter
1
4/24
3rd Quarter
Page 1

Appendix D: Opinion of Probable
Cost
www.dewberry.com

FINAL
Opinion of Probable Cost
Sutton Steam Station Potable Water Connection
Item ) Material Unit gty Unit Cost Extended Cost
Main
1 8-inch C-900 PVC Pipe
LF
10,800
$
10.00
$
108,000
2 8-inch Tee
EA
2
$
1,000
$
2,000
3 8-inch Gate Valve w/Box (assume three at every tee and one per 5,000 LF)
EA
9
$
1,200
$
10,800
4 8-inch Misc Fittings (Assume 2 fittings per appurtenance plus 1 fitting per 1000 LF pipe times 100# per fitting)
LB
2,900
$
4.00
$
11,600
5 Automatic Flushing Devices
EA
2
$
8,000
$
16,000
6 Fire Hydrant
EA
9
$
6,000
$
54,000
7 1-inch Air Release Valve and Manhole (at highpoints in main)
EA
0
$
2,200
$
-
Subtotal Materials/Equipment:
$
202,400
Installation (% of Material/Equipment):
30%
$
60,800
8 Clearing & Grubbing (8" piping only)
LF
10,800
$
3.50
$
37,800
9 Excavation and Backfilling for Trench
LF
10,800
$
18.00
$
194,400
10 Pipe Bedding Material (#67 Stone - assumed for 25% of pipe)
CY
250
$
35.00
$
8,800
11 Railroad Crossing (Casing, Piping, Spiders and Installation)
EA
0
$
50,000
$
-
12 Rural Road Crossing for Main (Casing, Piping, Spiders and Installation)
EA
1
$
20,000
$
20,000
13 Erosion Control Measures (Silt Fence/Check Dams based on feet of pipe)
LF
10,800
$
4.50
$
48,600
14 Testing, Disinfection, Clean Up, Seed and Mulch (Assume: 25-ft impacted area)
LF
10,800
$
8.50
$
91,800
15 Connection to Existing Waterline
EA
2
$
5,000
$
10,000
16 Traffic Control
LS
1
$
30,000
$
30,000
Services Connections/Lines
17 2-inch PVC Pipe
LF
5,400
$
4.75
$
25,70C
18 3/4-inch PVC Pipe
LF
0
$
3.00
$
19 Misc Fittings for Service Connections (valves, fittings, etc.)
EA
14
$
150
$
2,10C
Subtotal Materials/Equipment:
$
27,80(
Installation (% of Material/Equipment):
30%
$
8,40C
20 2-inch Services Taps, Meters, Meter Boxes and Misc. Connections to Main Line
EA
14
$
6,000
$
84,00C
21 3/4-inch Services Taps, Meters, Meter Boxes and Misc. Connections to Main Line
EA
0
$
3,000
$
22 Road Crossing for Services - (Jetting/bore, Casing, and Installation)
EA
7
$
1,500
$
10,50C
23 Excavation and Backfilling for Service Trench
LF
5,400
$
10.00
$
54,00C
24 Flush, Clean Up, Seed and Mulch (Assume: 5-ft impacted area)
LF
5,400
$
4.00
$
21,60C
25 System Development Fee
EA
14
$
15,360
$
215,04C
SUBTOTAL $
1,126,000
Sub -Total
FOB Allowance (% of Material/Equipment):
2%
$
4,700
Renovation Allowance (% of Material/Equipment):
5%
$
11,600
Sub -Total
$
1,143,000
Contractor Overhead and Profit:
15%
$
171,500
Contractor General Conditions: MONTH
5
$ 20,000 $
100,000
Sub -Total:
$
1,415,000
Contingency:
25%
$
353,800
Sub -Total:
$
1,769,000
Design, Bid Phase, and Construction Phase Engineering Services
10%
$
176,900
Easements Acquistion (Permanent)
$
TOTAL ESTIMATED CAPITAL COST: $ 1,950,000 1
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.) System Development Fees included per verbal conversation with CFPUA and may change based on final service size.
4.) Temporary easements are not included in this estimate.
5.) No significant rock excavation, water crossings, wetlands, or other abnormal working environment anticipated.
6.) Opinion of Probable Cost; cost may vary depending upon escalation at time of construction.
7.) Piping footage may change with final design.
12/8/2016 FINAL ;N=1 Dewberry