Download to read offline
More Related Content
LTCP meeting 11-16-05
- 1. Long Term ControlPlanLong Term Control Plan Public MeetingPublic Meeting Wednesday, November 16, 2005Wednesday, November 16, 2005
- 2. Today’s MeetingToday’s Meeting •Toledo’s Consent Decree • Background Information • Long Term Control Plan • Plan Purpose • Plan Input • Proposed Plan • Next Steps
- 3. Consent DecreeConsent Decree RequirementsRequirements •The City of Toledo’s Consent Decree with USEPA and OEPA requires the following • Improvements to the WWTP • Control of sanitary sewer overflows • Development and implementation of a Long Term Control Plan for Combined Sewer Overflows (LTCP)
- 4. Consent DecreeConsent Decree ImplementationImplementation •WWTP improvements • 11 major projects • $140 million • Sanitary Sewer Overflow Control • 13 major projects • $35 million • Combined Sewer Overflow Control • 26 projects (planned) • Over $250M (proposed)
- 5.
- 6. SSO Control ProjectsSSOControl Projects
- 7. CSO Long TermControlCSO Long Term Control PlanPlan • Subject of tonight’s meeting • Culmination of over two years of study • Involved the public and stakeholders along the way
- 8. Public Input forPlanPublic Input for Plan • Public input included: • 2 community telephone surveys • 6 public meetings • 17 Community Program Advisory Committee meetings devoted to the Long Term Control Plan
- 9. Long Term ControlPlan –Long Term Control Plan – ContentsContents • Actions – projects or programs • Schedules – when projects will happen • Where – locations where projects will be constructed • Costs – project expenditures; financing plan
- 10. ObligationsObligations • The consentdecree requires that the LTCP evaluate a range of CSO control alternatives based on: • Pollution reduction benefits • Instream water quality conditions • Construction and operations costs • The consent decree requires that work included in the plan be completed by August 31, 2016
- 11. City’s Combined AreaCity’sCombined Area
- 12. Existing ConditionsExisting Conditions •Currently 32 overflows • 17 square miles of CSO area • Discharge 33 times per year • Discharge 625 million gallons per year
- 13. CSO Control Workhas beenCSO Control Work has been PerformedPerformed • The City constructed three major tunnel systems to store excess flow • The City has implemented a number of sewer separation projects to build separate sewer systems
- 14. CSO Area toTunnelsCSO Area to Tunnels
- 15.
- 16. Alternatives ConsideredAlternatives Considered •Flow storage and/or treatment • Storage basins and tunnels with screening and other treatment capability • Sewer Separation • Construction of new sewers for eliminating combined systems • Flow reduction/rerouting • Small-scale measures to reduce the amount of flow to the sewer system
- 17. Recommended PlanRecommended Plan •Proposed Plan • Reduces number of overflow locations from 32 to 23 • Reduces frequency from 33 to 4 (untreated) • Reduces volume from 625 MG/year to 144 MG/year • Reduces typical pollutant discharge by 86%-89% • Reduces bacterial discharge by 90%
- 18. Recommended PlanRecommended Plan •Includes 26 projects • Estimated cost of over $250M (2005 dollars) • Reduces Ottawa River discharge to 2 times/ year • Reduces Maumee River discharge to 4 times/ year • Reduces Swan Creek discharge frequency to 3 times/year, disinfects the discharge that does occur
- 19. Plan for OttawaRiverPlan for Ottawa River
- 20. Plan for MaumeeRiverPlan for Maumee River (Upper)(Upper)
- 21. Plan for MaumeeRiverPlan for Maumee River (Lower)(Lower)
- 22. Plan for SwanCreekPlan for Swan Creek
- 23. Implementation Time FrameImplementationTime Frame • Ottawa River: 2006 – 2014 • Maumee River: 2006 – 2016 • Swan Creek: 2007 – 2016
- 24. Selected Control MethodsSelectedControl Methods • Storage basins • Storage pipelines • Optimization of existing tunnels • Addition of disinfection capabilities to tunnels • Flow reduction • Sewer separation
- 25. Storage Basin ExamplesStorageBasin Examples • Vast majority of work is below ground • Will require above ground building for support facilities • Takes about 2 - 3 years to construct Birmingham CSO basinBirmingham CSO basin Leib Screening/ DisinfectionLeib Screening/ Disinfection Facility - DetroitFacility - Detroit
- 26. Storage PipelineStorage Pipeline •Essentially large sewer underground that will provide storage volume • Small support building required in vicinity • Takes 1 – 2 years for construction
- 27. Expected Facility LocationsExpectedFacility Locations • Storage Basins • Joe E. Brown Park OR Windermere Blvd. • I – 280 / Front Street interchange area • Private property at Oakdale and Miami • City property next to I-75 on north side of Maumee River • Storage Pipelines • International Park • Adjacent to Jamie Farr Park
- 28. Tunnel ImprovementsTunnel Improvements •Improve tunnel hydraulics to reduce frequency • Reduce flow area (Swan Creek South) • Improve cleaning, other operations items • Add disinfection capability
- 29.
- 30. Sewer Separation/ FlowSewerSeparation/ Flow Reduction AreasReduction Areas
- 31. Project CostsProject Costs •All costs are based on 2005 cost index • Actual costs at implementation will be impacted by the rate of inflation and the final project design • Estimated overall cost: >$250 million • Rates will be impacted by timing of projects and financing method uses
- 32. What is Next?Whatis Next? • Plan was submitted in draft form to USEPA • Conference call held with USEPA this afternoon • Report submittal delayed until December 16, 2005 at EPA request • Draft executive summary will soon be available on the TWI Web site, along with an area to provide comments • Public comments on the plan are welcome
- 33. Display BoardsDisplay Boards •Display boards around the room provide an enlarged view and information about various projects • Please stop by the boards and ask questions! • Comment forms are provided