1. When a Water Main Breaks Presentation to: AWWU Board of Directors November 5, 2014

2. Key Points Water Main Breaks Happen Frequently Have to Manage Service Levels – Large Diameter Pipe Failure – Tudor/Elmore – Small Diameter Breaks this Year Customers Expect Normal Service Levels

3. How We Manage Our Water Mains Large Diameter Pipes – Condition Assessment Small Diameter Pipes – Failure Prediction + Condition Assessment Field Response Critical to Good Customer Service

4. Twin Pits 30-inch Water Main Repair

5. Earthquake Forced the Issue? September 25, 2014

6. Following the earthquake… Teamwork

7. Finding the Leak Immediate Response - Leak Detection

8. Planning Steps Taken

9. 30-inch Water Main Repair Initiated Repair (10’ from Vault) October 24/25, 2014

10. More Repair Activities Repair Clamp Unsuccessful – Outside Too Corroded – Seal Did not Hold

11. Final Touches on the Repair Abandoned Repair - 30” out of Service

12. Post Repair Activities Video – Confirmed Hole, Nothing Else

13. Important Next Steps Immediate Mitigation– Winter Worthy Temporary Service to APD Design to Rehab (Pipe In Service by May 2015) Additional Tasks (May Reduce Rehab Scope): New Methods for Analysis on Pipe Wall Thickness using Previous Data Evaluate Cathodic Protection for this Pipe

14. Recent Leak More Analysis…

15. How many breaks are too many? Middle Aged Pipe Will Break – Pressure Changes Will Result in Breaks – Replacement Costs Much Higher than Repair Retaining Level of Service Important – Eklutna Offline, Well 9 offline, 30” offline Operating within Normal Service Level

16. 2014 Breaks and Outages

18. An Epidemic of Breaks, nope…

19. 2014 Breaks Compared to Average

20. Questions? Water Main Breaks are Part of Doing Business Maintaining the level service our customers are used to is a Utility-wide effort Operating within Normal Service Level

21. Relative Impact of Breaks

22. Customer Impact by Pipe Size

23. Updated PVR

24. WDSRI – Our Level of Service Hasn’t Changed WDSRI measures and compares to recent past Number of Unplanned Outages Customer Hours of all Outages