2. DUKE ENERGY OH & KY – AT A GLANCE
Duke Energy Ohio, Duke Energy Kentucky, and its predecessor companies have been providing natural gas for more than 177 years
400,000 natural gas customers in southwest Ohio
100,000 natural gas customers in northern Kentucky
7,310 miles of pipeline
7,143 Distribution
168 Transmission
8 Miles Hazardous Liquid (Propane)
6,138 miles of service lines

3. DUKE ENERGY FRANCHISED GAS SERVICE TERRITORY

4. OHIO REVISED CODE – GAS LEAKS
Ohio - Grade 1 Leak
Take immediate and continuous action on leaks classified as grade one to protect life and property until the condition is no longer hazardous. Continuous action is defined as having personnel at the scene of the leak with leak detection equipment attempting to locate the source of the leak and taking action to prevent migration into structures, sewers, etc. If the hazardous condition associated with the leaks classified as grade one is eliminated, such as by venting, temporary repair, etc., but the possibility of the hazardous condition returning exists, the condition must be monitored as frequently as necessary, but at least once every eight hours, to protect life and property until the possibility of the hazardous condition returning no longer exists.
Leaks classified as grade one may be reclassified by performing a physical action to the pipeline (clamp, replacement, tape wrap, etc.) or pipeline facility. Reclassification must be in accordance with the criteria in paragraph (H) of this rule and by an individual who is qualified to classify leaks under the company's operator qualification plan. Venting, holes, aerators, or soil purging of a leak are not considered physical actions to the pipeline. If a leak is reclassified after performing a physical action, the time frame for any required repair(s) and/or reevaluation(s) at the resulting classification will be calculated from the date the leak was reclassified.

5. OHIO REVISED CODE – GAS LEAKS
Ohio - Grade 2 Leak
Repair or clear leaks classified as grade two no later than fifteen months from the date the leak is discovered, unless the pipeline containing the leak is replaced within twenty-four months from the date the leak is discovered. If a replacement project that will clear a leak classified as grade two is cancelled after the fifteenth month after classification of the leak(s), the associated leak(s) must be cleared within forty-five days of the cancellation of the project, not to exceed twenty-four months from the date of the leak classification. Leaks classified as grade two shall be reevaluated at least once every six months until cleared.

6. KENTUCKY – GAS LEAKS 807 KAR Chapter 5
At intervals not to exceed three (3) years, gas meters shall be manually inspected and visually examined for proper working condition.

7. Leak Management consist of the following elements:
Initiation of a Leak
Leak Repairs
Quality Control
Prevention

8. Leaks are primarily generated from three (3) sources:
LEAK INITIATION
Leaks are primarily generated from three (3) sources:
Odor calls
Leak survey
3rd party damages

9. ODOR CALLS & DATA COLLECTION
All odor calls are dispatched through a mobile Work Management System
Approximately 27,000 odor calls were dispatched in 2013
All leaks are reported via mobile data terminals at time of discovery and interface to Work Management System allowing better documentation of leak information
All completed leaks are recorded in the Work Management System
Leaks are scheduled for repair by compliance dates and customer concerns

10. ODOR CALLS & DATA COLLECTION
Quality Control Point
All leaks are exported from the mobile Work Management System to the Work Management System and assigned to a district
Scheduling Specialist assigned to each district
Approve all leaks assigned to their district
Review data for accuracy
Scheduling Specialist participates in the State Commission audits for leaks
Predefined reports from the Work Management System for active leaks are reviewed weekly for accuracy and compliance dates
Weekly reports are generated and ed to Scheduling Specialist with any active leaks with a compliance date the following week

11. Interior Leak Surveys (3 Year) – performed by Contractor personnel
Exterior Leak Surveys (Quarterly/Semiannual/Annual/3-Year) – performed by Company personnel
Leak survey mains and services
Visual inspection for atmospheric corrosion
Manual inspection and visual examination of meter
Interior Leak Surveys (3 Year) – performed by Contractor personnel
Leak survey inside jurisdictional service piping
Business District and High Occupancy/Designated Building Leak Surveys (Annual) – performed by Company personnel
Buildings with or without gas service
Inside and outside survey of service piping

12. Supervisor and crews meet to discuss next years requirements
EXTERIOR LEAK SURVEY
Leak Survey personnel consist of 1 supervisor and 10 company field employees
Each crew consists of 1 person
Typically most senior personal in the Construction Department perform leak survey
The leak survey requirements for the following year are prepared for Field Operations in December
Paper maps are created from a custom program
Investigating automated systems to produce digital maps for planning and tracking
Supervisor of Leak Survey determines the number of employees required to complete the survey for the next calendar year
2014 required 3000 miles of survey
3-year Distribution, Business District, Transmission
Supervisor and crews meet to discuss next years requirements
Leak survey routes are assigned and scheduled with input from the crews
Crews schedule routes to meet the calendar deadline

13. EXTERIOR LEAK SURVEY
All leaks are reported via mobile data terminals at time of discovery and interface to Work Management System allowing better documentation of leak information
All completed leaks are recorded in the Work Management System
All open leaks are reviewed and accepted by the district Scheduling Specialist in the Work Management System
Leaks are scheduled for repair by compliance dates/customer concerns

14. EXTERIOR LEAK SURVEY - DUTIES
Leak Survey personal performs 3 separate surveys on their routes
Leak Survey
Atmospheric Corrosion Survey
Manual inspection and visual examination of the gas meter
Leak Detected
All leaks are pinpointed
An indication of a gas leak will be confirmed with a combustible gas indicator (CGI)
The leak will be classified/graded
The surveyor will repair the leak if possible

15. EXTERIOR LEAK SURVEY Quality Control Point
All leaks are exported from the mobile Work Management System to the Work Management System and assigned to a district
Scheduling Specialist assigned to each district
Approve all leaks assigned to their district
Review data for accuracy
Predefined reports from the Work Management System for active leaks are reviewed weekly for accuracy and compliance dates
Weekly reports are generated and ed to Scheduling Specialist with any active leaks with a compliance date the following week

16. EXTERIOR LEAK SURVEY - EQUIPMENT
Each crew performing leak survey reports from their home in a company truck
The crew is required to be in their survey area at the start of their shift
The leak surveys are performed with a Remote Methane Leak Detector
Remote Methane Leak Detector has several advantages
Each crew is also equipped with a flame ionization detector
Combustible Gas Indicators
Various tools to pinpoint and classify leaks and perform minor repairs
Vehicles are equipped with Mobile Data Terminals to document the leak information

17. EXTERIOR LEAK SURVEY - DOCUMENTATION
Walk sheets to specify what area was surveyed and footage completed are manually recorded each day
RMLD and Flame Ionization units are calibrated daily and manually recorded on the daily walk sheet
Combustible Gas Indicators are calibrated weekly and manually recorded on the daily walk sheet
Survey maps are manually highlighted daily to record progress and all leaks are plotted
All paper work is turned in each week
The above information indicates
Which mains and services have been surveyed each day
Which instrument was utilized and the calibration information for the instrument
Which CGI was utilized and the calibration information for the instrument
All leaks found during the survey

18. EXTERIOR LEAK SURVEY - DOCUMENTATION
Each truck is equipped with a mobile data terminal to enter the leak data into the mobile Work Management System

19. EXTERIOR LEAK SURVEY - METRICS
Metrics Measured:
Number of leaks detected by leak survey
Average miles of main surveyed per 8-hour day for each person
Weekly footage completed on each map
Data is utilized to determine amount of main footage required and to be completed each month by:
District
Transmission Line
Distribution Map
Crew

20. EXTERIOR LEAK SURVEY – QUALITY CONTROL
Active leaks in the Work Management System are spot-checked against the completed leak survey
The supervisor will investigate an active leak that was not detected by leak survey
Instrument utilized
Calibration data
Weather conditions at the time of the survey
Daily mileage is monitored for productivity and quality of survey

21. INTERIOR LEAK SURVEY Inside Pipe Survey
3 year distribution and Business District
Inside Pipe Survey is completed by Contractors
Telephone Call
Cold call with door hanger if unsuccessful
Letter
Final cold call with door hanger
Gas service is terminated if no response
Work Performed
Leak Survey
Atmospheric Corrosion
Manual inspection and visual examination of the gas meter

22. INTERIOR LEAK SURVEY
All gas leaks and any safety concerns detected by the Contractor with a gas facility is immediately reported and the Contractor will stand by until a Company responder arrives
Atmospheric corrosion is accessed to determine what action is taken
Leaks are repaired immediately
Leaks detected on non-jurisdictional pipe
Gas service is turned off for repair by home owner
Statistics
40% of cold calls are successful
Gas service is turned off to 14% of the customers
Leaks are detected on 4% of the inspections

23. INTERIOR LEAK SURVEY – QUALITY CONTROL
Contractors are audited daily by the Contractor Inspection Department
Inspecting Mechanic will spot check work performed by contractor
Inspecting Mechanic will perform leak survey, atmospheric corrosion survey, visual inspection and manual examination on facilities previously inspected by contractor
Discrepancies are identified and reported to the Supervisor in the Contractor Inspection Department

24. DESIGNATED BUILDING LEAK SURVEY
Service Mechanics Perform the Designated Building Leak Survey
High Occupancy buildings with or without a gas meter
Work Performed
Leak Survey
Atmospheric Corrosion
Manual inspection and visual examination of the gas meter
Relief valve inspection
Etc.

25. LEAK SURVEY - UPDATES
Business Districts are updated each year from information provided by the Surveyors
Designated Buildings are also updated from information provided by the surveyor and billing

26. THIRD-PARTY DAMAGES
Service Mechanic and Construction crew dispatched simultaneously
Service Mechanic will enter data in mobile data terminal
Leak is exported to the Work Management System
Construction crew will complete the repair and capture all data on paper
Paper and electronic work order matched up to complete the leak. Information on the form is placed in the Work Management System
Paper records are scanned and stored for future reference

27. LEAK CLASSIFICATION Leak Classification
All leaks are classified as a Grade 1 or Grade 2
Grade 3 is not utilized for leak classification
Leaks are classified by company personnel only
Leak Surveyors
Construction Crews
Service Mechanics

28. Active leaks are kept within the Work Management System
LEAK REPAIRS
Active leaks are kept within the Work Management System
A Scheduling Specialist position was created in 2008 to provide scheduling and prioritizing of leak repairs
Administration of work in Work Management System 
Leaks are scheduled for repair by compliance dates and customer concerns
Company goal is to have 90% of all active leaks with an origination date less than 6 months
Increase safety for the customer and system integrity
Reduction of cost by eliminating the evaluation of leaks every 6 months

29. LEAK REPAIRS
Leak repairs are completed by a combination of Company and Contractor personnel
Gas Main Repairs
Main repairs are completed by Company crews
Gas Service Repairs
Gas services renewed main to meter rather than repaired
Completed by either Contractor or Company crews
Trenchless technology utilized when possible

30. LEAK REPAIRS Documentation
Company and Contractors document repairs on paper
Information on the forms is placed into the Work Management System
Paper records scanned and stored for future reference

31. PREVENTION - THIRD PARTY DAMAGES
Statistics
damages per 1000 locate requests
damages per 1000 locate requests
damages per 1000 locate requests
YTD damages per 1000 locate requests

32. PREVENTION – THIRD-PARTY DAMAGES
Dedicated damage investigators respond to the scene and investigate all third-party damages
These individuals respond to third-party damages
Determines fault at the scene
Third-Party
Locate Contractor
Company
Participate in the multiple venues:
Contractor safety meetings
Public awareness conferences
Fire Chief meetings
Know the equipment operators
Operators will personally contact for issues

33. PREVENTION – ACCELERATED MAIN REPLACEMENT PROGRAM
Accelerated Main Replacement Program (AMRP)
All cast iron and bare steel gas mains and associated services have been replaced in Kentucky
All cast iron and bare steel gas mains and associated services will be replaced in Ohio by the end of 2015
Main Replacement Program has Significantly Reduced the Number of Active Leaks
Replacement Program was prioritized by risk
Date of installation
Size of main
Operating pressure
Class locations
AMRP allows for the “carry over” of a scheduled leak repair an additional 9 months when the leak is associated with an active replacement project
AMRP has mitigated the risk of a leak occuring

34. PREVENTION – ACCELERATED SERVICE REPLACEMENT PROGRAM
Proposed
Accelerated Service Replacement Program (ASRP)
Replacement of all bare steel, copper and cast iron services

35. PREVENTION - MATERIALS
Material Committee
Materials Committee investigates failures
Determine if material or operator issue
If the failure is material related
Provide alternatives
If the failure is operator related
Develop communication to review with employees
Develop recommendations for training
Example of findings from Material Committee
Stab fittings discontinued on plastic piping
Electro fusion or butt fusion are the only methods for joining pipe
Stabs utilized during inclement weather and removed at a later date

36. PREVENTION – CROSS BORES
High Risk Leak
Trenchless technology requires all sewers and storm drains located prior to installation
All sewers and storm drains are inspected with a camera and video recorded before gas is placed on the service

37. PREVENTION - TRAINING
Company employees and contractors are instructed and OQ by company trainer
Consistency
Employees must have desire to want to perform each task as it was presented and taught by everyone involved
A strong core belief to follow policies & procedures, understand one’s job and the expectations that follow  
All involved with the process are flexible and have the ability to change direction when needed