are you ready for the next big storm?

Tim SikmaTim SikmaCity of NoviCity of Novi

Case Study: CMOM Case Study: CMOM ProgramProgram

in the City of Novi, MIin the City of Novi, MI

Are You Ready for the Are You Ready for the Next Big Storm?Next Big Storm?

Michelle LaRose, P.E.Michelle LaRose, P.E.Orchard, Hiltz & McCliment, Inc.Orchard, Hiltz & McCliment, Inc.

Introduction – Are you Introduction – Are you Ready?Ready?

Sewer systems have some degree of inflow and Sewer systems have some degree of inflow and infiltrationinfiltration

Under some rainfall condition, the system Under some rainfall condition, the system capacity will be exceededcapacity 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 Will it cause SSOs, or

worse, will it flood worse, will it flood basements?basements?

Is there capacity left for Is there capacity left for growth?growth?

City of Novi, MichiganCity of Novi, Michigan 2006 population of 52,0232006 population of 52,023 One of the largest retail One of the largest retail

areas in Michiganareas in Michigan Approximately 60% Approximately 60%

developeddeveloped 42% population growth in 42% population growth in

the 1990sthe 1990s Population growth to nearly Population growth to nearly

70,000 people projected in 70,000 people projected in the next 25 yearsthe next 25 years

Oakland CountyOakland County

NoviNovi

The City of Novi Asks The City of Novi Asks Questions:Questions:

Do they have capacity for the growth Do they have capacity for the growth projected?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 What is most cost effective process to manage

the sewer system?the sewer system?

These questions prompted the CMOM These questions prompted the CMOM StudyStudy(Capacity, Management, Operation and Maintenance)

Objectives of the CMOMObjectives of the CMOM

Provide confidence in current state of systemProvide confidence in current state of system Ensure adequate capacity for future needsEnsure adequate capacity for future needs Meet customer and Meet customer and

EPA / MDNRE EPA / MDNRE expectationsexpectations

Seek O&M efficienciesSeek O&M efficiencies Become proactive – Become proactive –

not reactivenot reactive

The The ProcessProcess

Three phase approach with transition to Three phase approach with transition to CityCity

CMOM ImplementationCMOM Implementation

Phase IPhase I Flow projectionsFlow projections Wet weather flow Wet weather flow

analysisanalysis Capacity assessmentCapacity assessment

CMOM Implementation CMOM Implementation (cont.)(cont.)

Phase IIPhase II SSES SSES Pump station inventory Pump station inventory Ongoing meteringOngoing metering

Phase IIIPhase III SSESSSES Ongoing meteringOngoing metering Pilot rehabPilot rehab

Next step – Next step – Transition!!Transition!!

The Transition GoalsThe Transition Goals All work done in-houseAll work done in-house Cost-savingsCost-savings Need a champion to Need a champion to

leadlead Workload balanceWorkload balance Becoming part of the Becoming part of the

routineroutine

Where Where shall shall we we

begin?begin?

Overall StrategyOverall Strategy Ongoing metering & SSES Ongoing metering & SSES

within Area Gwithin Area G

Rehab in Area G based on SSES Rehab in Area G based on SSES resultsresults

Meter next high priority Meter next high priority district (Area B) district (Area B)

Getting StartedGetting Started Establish Establish

scheduleschedule Allocate Allocate

staffstaff

ImplementationImplementation Area G SSES Area G SSES

Manhole inspections – GPS integrationManhole inspections – GPS integration Smoke testing – notification, equipment, etc.Smoke testing – notification, equipment, etc. Sewer televising – bid proposal, PACP, reviewSewer televising – bid proposal, PACP, review

Area B MeteringArea B Metering Select meter locationsSelect meter locations Schedule for data download/reviewSchedule for data download/review

Implementation Implementation (cont.)(cont.)

SSES in the next high priority SSES in the next high priority district (Area B)district (Area B)

Start metering in Area C1 Start metering in Area C1

Rehab recommendations in Rehab recommendations in Area B based on SSES resultsArea B based on SSES results

SSES FindingsSSES Findings

SSES Findings SSES Findings (cont.)(cont.)

SSES Findings SSES Findings (cont.)(cont.)

SSES Findings SSES Findings (cont.)(cont.)

ResultsResults

Next steps:Next steps: Continue SSES in Area Continue SSES in Area

C1, high priority sub-C1, high priority sub-areas areas

Rehabilitation in Area G, Rehabilitation in Area G, B, and C1; post-rehab B, and C1; post-rehab metering to followmetering to follow

Begin sub-district Begin sub-district metering in Area C2metering in Area C2

SSES identified rehab needs in Areas G SSES identified rehab needs in Areas G and B and B

Metering identified SSES needs in Area Metering identified SSES needs in Area C1 (investigation is in progress)C1 (investigation is in progress)

ChallengesChallenges Staffing balanceStaffing balance

Other DPW activities Other DPW activities Staying on scheduleStaying on schedule

Skill set/trainingSkill set/training MetersMeters

Own vs. rentOwn vs. rent Selecting locationsSelecting locations

Challenges Challenges (cont.)(cont.) BudgetingBudgeting Internal CoordinationInternal Coordination Expect the UnexpectedExpect the Unexpected

Challenges Challenges (cont.)(cont.)

Keeping Keeping Staff Staff Happy!Happy!

Why We’ve Been SuccessfulWhy We’ve Been Successful Overcoming the challengesOvercoming the challenges Phased approachPhased approach One person to champion the programOne person to champion the program Maximize existing resourcesMaximize existing resources More control over planning and budgetMore control over planning and budget Flexibility and willingness to learnFlexibility and willingness to learn

And most of all…And most of all…TEAM EFFORT!!!TEAM EFFORT!!!

Special Thanks to the rest of the CMOM Team:Special Thanks to the rest of the CMOM Team:

Scott Roselle, City of NoviScott Roselle, City of NoviBrian Coburn, City of NoviBrian Coburn, City of NoviRobert Czachorski, OHMRobert Czachorski, OHM

Questions?Questions?Michelle LaRose, P.E.Michelle LaRose, P.E.

Water Resource EngineerWater Resource EngineerOHMOHM

michelle.larose@ohm-advisors.commichelle.larose@ohm-advisors.com(734) 466-4411(734) 466-4411

Tim SikmaTim SikmaWater and Sewer ManagerWater and Sewer Manager

City of Novi, MICity of Novi, MI

tsikma@cityofnovi.orgtsikma@cityofnovi.org(248) 735-5647(248) 735-5647