ltcp meeting 11-16-05

Long Term Control PlanLong Term Control PlanPublic MeetingPublic Meeting

Wednesday, November 16, 2005Wednesday, November 16, 2005

Today’s MeetingToday’s Meeting

• Toledo’s Consent Decree

• Background Information

• Long Term Control Plan

• Plan Purpose

• Plan Input

• Proposed Plan

• Next Steps

Consent Decree Consent 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)

Consent Decree Consent 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)

WWTP ConstructionWWTP Construction

SSO Control ProjectsSSO Control Projects

CSO Long Term Control CSO Long Term Control PlanPlan

• Subject of tonight’s meeting

• Culmination of over two years of study

• Involved the public and stakeholders along the way

Public Input for PlanPublic 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

Long Term Control Plan – 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

ObligationsObligations

• The consent decree 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

City’s Combined AreaCity’s Combined Area

Existing ConditionsExisting Conditions

• Currently 32 overflows

• 17 square miles of CSO area

• Discharge 33 times per year

• Discharge 625 million gallons per year

CSO Control Work has been CSO 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

CSO Area to TunnelsCSO Area to Tunnels

Sewer Separation Sewer Separation ProjectsProjects

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

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%

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

Plan for Ottawa RiverPlan for Ottawa River

Plan for Maumee River Plan for Maumee River (Upper)(Upper)

Plan for Maumee River Plan for Maumee River (Lower)(Lower)

Plan for Swan CreekPlan for Swan Creek

Implementation Time FrameImplementation Time Frame

• Ottawa River: 2006 – 2014

• Maumee River: 2006 – 2016

• Swan Creek: 2007 – 2016

Selected Control MethodsSelected Control Methods

• Storage basins

• Storage pipelines

• Optimization of existing tunnels

• Addition of disinfection capabilities to tunnels

• Flow reduction

• Sewer separation

Storage Basin ExamplesStorage Basin 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/ Disinfection Leib Screening/ Disinfection Facility - DetroitFacility - Detroit

Storage PipelineStorage Pipeline

• Essentially large sewer underground that will provide storage volume

• Small support building required in vicinity

• Takes 1 – 2 years for construction

Expected Facility LocationsExpected Facility 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

Tunnel ImprovementsTunnel Improvements

• Improve tunnel hydraulics to reduce frequency

• Reduce flow area (Swan Creek South)

• Improve cleaning, other operations items

• Add disinfection capability

Facility LocationsFacility Locations

Sewer Separation/ Flow Sewer Separation/ Flow Reduction AreasReduction Areas

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

What is Next?What is 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

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