1. Tim Sikma City of Novi Case Study: CMOM Program in the City of Novi, MI Are You Ready for the Next Big Storm? Michelle LaRose, P.E. Orchard, Hiltz & McCliment, Inc.

2. Introduction – Are you Ready? Sewer systems have some degree of inflow and infiltration Sewer systems have some degree of inflow and infiltration Under some rainfall condition, the system capacity will be exceeded Under some rainfall condition, the system capacity will be exceeded Do you know how big of a storm it will take? Do you know how big of a storm it will take? Will it cause SSOs, or worse, will it flood basements? Will it cause SSOs, or worse, will it flood basements? Is there capacity left for growth? Is there capacity left for growth?

3. City of Novi, Michigan 2006 population of 52,023 2006 population of 52,023 One of the largest retail areas in Michigan One of the largest retail areas in Michigan Approximately 60% developed Approximately 60% developed 42% population growth in the 1990s 42% population growth in the 1990s Population growth to nearly 70,000 people projected in the next 25 years Population growth to nearly 70,000 people projected in the next 25 years Oakland County Novi

4. The City of Novi Asks Questions: Do they have capacity for the growth projected? Do they have capacity for the growth projected? How wet is the system? How wet is the system? How big of a storm will exceed their capacity? How big of a storm will exceed their capacity? What is most cost effective process to manage the sewer system? What is most cost effective process to manage the sewer system? These questions prompted the CMOM Study (Capacity, Management, Operation and Maintenance)

5. Objectives of the CMOM Provide confidence in current state of system Provide confidence in current state of system Ensure adequate capacity for future needs Ensure adequate capacity for future needs Meet customer and EPA / MDNRE expectations Meet customer and EPA / MDNRE expectations Seek O&M efficiencies Seek O&M efficiencies Become proactive – not reactive Become proactive – not reactive

6. The Process

7. Three phase approach with transition to City Three phase approach with transition to City CMOM Implementation Phase I Phase I Flow projections Flow projections Wet weather flow analysis Wet weather flow analysis Capacity assessment Capacity assessment

8. CMOM Implementation (cont.) Phase II Phase II SSES SSES Pump station inventory Pump station inventory Ongoing metering Ongoing metering Phase III Phase III SSES SSES Ongoing metering Ongoing metering Pilot rehab Pilot rehab Next step – Transition!!

9. The Transition Goals All work done in-house All work done in-house Cost-savings Cost-savings Need a champion to lead Need a champion to lead Workload balance Workload balance Becoming part of the routine Becoming part of the routine

10. Where shall we begin?

11. Overall Strategy Ongoing metering & SSES within Area G Ongoing metering & SSES within Area G Rehab in Area G based on SSES results Rehab in Area G based on SSES results Meter next high priority district (Area B) Meter next high priority district (Area B)

12. Getting Started Establish schedule Establish schedule Allocate staff Allocate staff

13. Implementation Area G SSES Area G SSES Manhole inspections – GPS integration Manhole inspections – GPS integration Smoke testing – notification, equipment, etc. Smoke testing – notification, equipment, etc. Sewer televising – bid proposal, PACP, review Sewer televising – bid proposal, PACP, review Area B Metering Area B Metering Select meter locations Select meter locations Schedule for data download/review Schedule for data download/review

14. Implementation (cont.) SSES in the next high priority district (Area B) SSES in the next high priority district (Area B) Start metering in Area C1 Start metering in Area C1 Rehab recommendations in Area B based on SSES results Rehab recommendations in Area B based on SSES results

15. SSES Findings

16. SSES Findings (cont.)

19. Results Next steps: Next steps: Continue SSES in Area C1, high priority sub-areas Continue SSES in Area C1, high priority sub-areas Rehabilitation in Area G, B, and C1; post-rehab metering to follow Rehabilitation in Area G, B, and C1; post-rehab metering to follow Begin sub-district metering in Area C2 Begin sub-district metering in Area C2 SSES identified rehab needs in Areas G and B SSES identified rehab needs in Areas G and B Metering identified SSES needs in Area C1 (investigation is in progress) Metering identified SSES needs in Area C1 (investigation is in progress)

20. Challenges Staffing balance Staffing balance Other DPW activities Other DPW activities Staying on schedule Staying on schedule Skill set/training Skill set/training Meters Meters Own vs. rent Own vs. rent Selecting locations Selecting locations

21. Challenges (cont.) Budgeting Budgeting Internal Coordination Internal Coordination Expect the Unexpected Expect the Unexpected

22. Challenges (cont.) Keeping Staff Happy!

23. Why We’ve Been Successful Overcoming the challenges Overcoming the challenges Phased approach Phased approach One person to champion the program One person to champion the program Maximize existing resources Maximize existing resources More control over planning and budget More control over planning and budget Flexibility and willingness to learn Flexibility and willingness to learn And most of all… TEAM EFFORT!!!

24. Special Thanks to the rest of the CMOM Team: Scott Roselle, City of Novi Brian Coburn, City of Novi Robert Czachorski, OHM Questions? Michelle LaRose, P.E. Water Resource Engineer OHMmichelle.larose@ohm-advisors.com (734) 466-4411 Tim Sikma Water and Sewer Manager City of Novi, MI tsikma@cityofnovi.org (248) 735-5647