1. South Fork improvements program – a mid-program report
NC AWWA-WEA 95th Annual Conference
Template Revised 13 January 2012
South Fork improvements program – a mid-program report
Kent A. Lackey, P.E. – Black & Veatch Project Manager

2. AGENDA
Background
Program Overview
Program status
Early successes

3. Background – Wastewater system
Winston-Salem/Forsyth County Utility Commission
Approximately 122,000 customers (3rd largest in NC)
2 WWTPS
Muddy Creek
21 mgd capacity
Archie Elledge
30 mgd capacity
Three Drainage Basins
South Fork
Elledge
49 WW Lift Stations
1,723 miles of sewer
Archie Elledge WWTP
Muddy Creek WWTP

4. Background – long term wastewater treatment analysis
Archie Elledge WWTP
Muddy Creek WWTP
Muddy Creek Basin
South Fork Basin
Elledge Basin
South Fork PS
New MC Transfer PS
Where is it being generated?
Convey all flows to plants using existing infrastructure
Transfer flows between plants
Transfer flows between basins
System Equalization
Scalping within the collection system
Future New Plant
introductions
Future Plant Option 1
Future Plant Option 1

5. South fork improvements program program partners
Program Owner : CCUC
Program Consultants:
Utilities Administration
Hazen and Sawyer: Interceptor Design/EA
Wastewater Treatment
Highfill Infrastructure: Kerner’s Mill Design
Collection & Maintenance
Finance
Southeastern Electrical Consultants: Kerner’s Mill PS Design
City Attorney
Program Manager: Black & Veatch
Carolina Ecosystems: Environmental Field Support
Program Management
Hydromax USA: Pipeline Inspection
MCCIPS and Force Main Design
Allied Associates: Surveying
Optimization Study/Design
Sanborn: Aerial Topography
Funding Assistance
S&ME: Geotechnical
Regulatory Permitting
Clemson Engineering Hydraulics: Physical Modeling

6. South fork improvements program overview
26 December 2012
South fork improvements program overview
Kerner’s Mill PS and Force Main
Design Lead: Highfill
Linville Springs & Wexford PS
Design Lead: CCUC
MCCIPS and Force Main
AEWWTP Equalization Facilities
AEWWTP Aeration Upgrades(New)
MCWWTP Power Generation Upgrades(New)
Design Lead: Black & Veatch
South Fork Interceptors
Design Lead: Hazen and Sawyer
SSES Projects
Design Lead: Several
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7. General program status project update – Optimization Study
26 December 2012
General program status project update – Optimization Study
Study Completed in
Aeration/DO Evaluation
Gas Utilization Evaluation
Sidestream Treatment Evaluation for N and P
Chlorine Control
Performance Management System
Energy Management Via Ammonia Control
Interplant Pumping Control System
Result: AEWWTP Aeration Upgrade and Power Generation Projects Initiated
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8. South Fork Program projects
Additional Program Projects
Process and Energy Optimization Study for AEWWTP and MCWWTP
Program Funding
Program Funding Application and Administration for State Revolving Fund Loan
Federal Funding Screening and Application for all 2014 CIP projects
Other Projects Added to the Program
AEWWTP Equalization Facilities
AEWWTP Aeration Improvements
MCWWTP Power Generation Upgrades
MCWWTP Blower Upgrades Funding

9. Program financial update program budget - construction
26 December 2012
Program financial update program budget - construction
Current Anticipated Program Construction Cost: $98,320,000
MCWWTP CIPI: $51,060,000
MCWWTP Transfer Force Main: $4,850,000
AEWWTP Day Tanks: $9,000,000
AEWWTP Aeration System: $4,700,000
South Fork Interceptor Contract 1: $12,550,000
South Fork Interceptor Contract 2: $5,360,000 (estimated)
Kerner’s Mill Force Main: $3,200,000 (estimated)
Kerner’s Mill Pump Station Upgrade: $1,600,000 (estimated)
MCWWTP Power Generation: $6,000,000 (estimated)
Program is currently approximately $8M under budget
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10. General financial update program funding
26 December 2012
General financial update program funding
SRF CS
$70,500,000 Loan Granted (2% rate)
Funds MCCIPS, Force Main, AEWWTP Equalization
SRF CS
$9,399,200 Loan Granted (2% rate)
Funds SSES Projects: Peters Creek, 21st Street, Ardmore Basin No. 1
SRF CS
$1,079,400 Loan Granted (0% rate)
Funds AEWWTP Aeration System Upgrade
SRF CS
$6,003,772 Loan Granted (0% rate)
Funds MCWWTP Power Generation Facilities
Future Application
MCWWTP Blower Replacement
South Fork Interceptors
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11. program schedule update
26 December 2012
program schedule update
Project
Design Completion
Construction Start
Final Completion
MCCIPS
Complete
1/28/15
5/31/17
MCCIPS Force Main
6/15/15
8/16/16
AEWWTP Equalization System
6/25/15
11/17/16
AEWWTP Aeration Upgrades
9/1/15
5/27/16
MCWWTP Power Generation
10/31/15
2/2016
2/2017
Kerner’s Mill Force Main
1/2016
8/2016
Kerner’s Mill Pump Station Upgrade
2/2018
South Fork Interceptor Contract 1
7/15/15
12/16/16
South Fork Interceptor Contract 2
11/2015
11/2016
Red text indicates projects currently in construction
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12. General program status project update - MCCIPS
26 December 2012
General program status project update - MCCIPS
Muddy Creek WWTP Consolidated Influent Pumping Station
82 mgd Influent PS
Expandable to 138 mgd
Screening/Grit Removal
9.5 mgd Transfer PS & 30” Force Main
Expandable to 30 mgd
Odor Control
2 - 1 MG Day Tanks
2 – 3.9 MG Storm EQ Basins
Electrical Switchgear Replacement
NPW Pump Replacement
Demolition of Exist Primary Treatment and Influent PS
Ferric Chloride Storage/Feed
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13. General program status project update - MCCIPS
26 December 2012
General program status project update - MCCIPS
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14. General program status project update – AEWWTP
26 December 2012
General program status project update – AEWWTP
Elledge WWTP Equalization
Objective:
Combine AEWWTP and MCWWTP Flows and Equalize Diurnal Variation
2 – 2.0 MG Day Tanks w/ Vertical Mixers
Rate Control Structure
Elledge Aeration Upgrades
Segment Aeration Basins into 4 independent DO Control Zones
Results:
Reduce air requirements by 7,300 scfm
Approximate Power Savings: $186,000/yr
Approximate 3-4 yr payback
PowerPoint Sample

15. General program status project update – MCWWTP Power Generation
26 December 2012
General program status project update – MCWWTP Power Generation
MCWWTP Power Generation
MW Dual Fuel Engine Generator
Self Enclosed Outdoor Unit
800kW Capacity on Digester Gas
1.1 MW Emergency Capacity on Natural Gas
Power Supplied to Grid
Digester Gas
Cleaning: particulates, moisture, H2S
Compressor via Blowers
Waste Heat
Hot Water for Digester Heating
Approximately 8 yr payback
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16. General program status project update – Interceptors
26 December 2012
General program status project update – Interceptors
Contract 1
23,900 LF of 54” pipe
Pipe Material: FRP with DIP at road crossings
Contract 2
8,860 LF of 15-42” pipe
Pipe Material: FRP (42”), DIP (42”), Clay (15”/18”)
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17. South fork program early successes
Pumping System Final Capacity Refined at 30% Design
Reduced due to Muddy Creek Basin Master Plan and South Fork Basin Refinement
Reduce PS Cost and Deferred Initial Equipment (Approx. $1M)
No Impact to Aggressive Schedule for South Fork Basin Improvements
Basin
5 yr Storm Peak Flow (mgd)
Initial 2041 Flows
Final 2041 Flows
Muddy Creek Basin
110(Assume 3.4 PF)
92.9
South Fork Basin 40
35.6
Davidson County
1.5
10.0
Total
171
138.5

18. South fork program early successes
Two significant Program Interceptor Projects were Deferred ($11M)
South Fork Basin MP Re-calibration Efforts Completed and Assessed Before Detailed Design Commenced
Reduced Program Construction and Engineering Cost
No Impact to Aggressive Schedule for South Fork Basin Improvements
Projects Deferred
Program Manager was Able to Make Effective, Ongoing Decisions Based on Collective Information

19. Consolidated industrial allocation tracking
Archie Elledge WWTP
This figure provide a nice snapshot of how the overall system will be configured
There is approx 4.6miles between plants with a elevation difference of less than 20 feet
Three outfalls lead to the AEWWTP and are pumped into the plant by the IPS
Two outfalls lead to the MCWWTP and are either pumped into the plant or transferred to the AEWWTP via a 30” force main
They have the ability to measure flow from the various outfalls and will also have the ability to measure COD/TOD load into the plants.
Muddy Creek WWTP
Transfer Force Main 19

20. South fork program early successes
The Program Team is Driving Effective and Open Collaboration
Multiple Projects
MCWWTP Clarifier Improvements Project
Collection System Master Plan Project
South Fork Program
Multiple Engineering Firms Provide Collective Decision Making
Winston-Salem
Black & Veatch
Hazen & Sawyer
Highfill Infrastructure Engineering
Winston-Salem is Benefiting from Collective Expertise and Effective Collaboration

21. South fork program early successes
Benefiting from Effective Collaboration
Exchanged Scope Between MCWWTP Clarifier Improvements Project and Program Project
Deferred Sitework to Program;
Moved Clarifier Splitter Structure to Clarifier Project
Evaluating and Coordinating Project Sequencing
Interceptor Designers Considered “Replace in-place” concept to avoid considerable rock removal along alignment
Program Manager Evaluated Interceptor Sections and Impact on MCWWTP Flows
Evaluated Early Milestones in PS Project to Incorporate Higher Influent Flows to Allow full “replace in-place” Without Delay to Program Completion

22. South fork program early successes
Significant Benefits in Bidding and Construction
Significant Contractor interest including in some cases 15 bidders for a project.
Consolidated and coordinated construction administration efforts
Consolidated database for construction documents and records to keep things organized for CCUC

23. conclusions
Unique Program Management Approach Has Created Value for CCUC
Allows for Expediting Relief of South Fork Basin While Concurrent Projects are Completed
Allowed to Initiate Projects without “Final” design criteria in order to Expedite Completion
Consolidated “like” Efforts Increasing Efficiency and Reducing Cost
Greatly Reduced CCUC Staff Requirements for a Complex set of Projects
Single Point of Responsibility with a High Level of Collaboration Between Team Members – Increasing Quality and Value.