Cuyahoga River Remedial Action Plan (RAP) Symposium...
Transcript of Cuyahoga River Remedial Action Plan (RAP) Symposium...
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City of Akron Combined Sewer Overflow (CSO)
Program
City of Akron Combined Sewer Overflow (CSO)
Program
Akron: CSOsState of the River
Cuyahoga 2013
September 20, 2013
Agenda
Status of Proposed Consent Decree
CSO Projects
Current CSO Projects
Ohio Canal Interceptor (OCI) Tunnel
Questions?
CSO Program Management Team Page 2
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Status of Proposed Consent Decree
Status of Proposed Consent Decree
CSO Program Management Team
• Updated Facilities Plan and CSO LTCP• Understanding with State
1999-2002
• Negotiations with US EPA• US EPA Complaint• Consent Decree (Design/Implement CD) Lodged
in Court
2002-2009
• Fairness Hearing• Consent Decree Rejected Court• Akron/US EPA Appeal• US EPA and Ohio EPA Approve Akron CSO LTCP
(Implement CD)• 2nd Court Hearing
2010-2012
CSO Program Management Team Page 4
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Consent DecreeOctober 2012
2nd Court Hearing before Judge Adams
May 2013
Judge appoints Expert Witness to review case
June 27, 2013
Expert Witness, USEPA, and City of Akron tour the Cuyahoga Valley National Park
June 28, 2013
City of Akron provides tour of Water Reclamation Facility (WRF) and proposed CSO project locations to Expert Witness, USEPA, and Ohio EPA
Expert Witness to provide report to Court
Draft report – mid/late July 2013 (not received yet)
Final report – end of August 2013 (not received yet)
CSO Program Management Team Page 5
Professor Craig JohnsonLewis and Clark CollegePortland, Oregon
Current CSO ProjectsCurrent CSO Projects
CSO Program Management Team
Akron Continues to Implement Proposed Consent Decree and
Updated Long Term Control Plan
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Consent Decree Elements
SPECIFIC ACTION
PROJECTS
CSO AND WPCS CONTROL
MEASURES
CMOM, FOG AND
EMERGENCY RESPONSE
MUD RUN PUMPING STATION
Long Term Control Plan (LTCP) Update and Report
CD: Complete all projects by October 15th, 2028LTCP Update : October 31, 2027
SPECIFIC ACTION
PROJECTS
CSO AND WPCS CONTROL
MEASURES
CMOM, FOG AND EMERGENCY RESPONSE
MUD RUN PUMPING STATION
Upgrade WPCS to 130mgd (Phase 1)
BioACTIFLO Pilot
Upgrade WPCS 130mgd to 170mgd (Phase 2)
BioACTIFLO Pilot 110mgd to 150mgd
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CSO Program Management Team Page 9
SPECIFIC ACTION
PROJECTS
CSO AND WPCS CONTROL
MEASURES
CMOM, FOG AND EMERGENCY RESPONSE
MUD RUN PUMPING STATION
Separation Projects (8, 25, 21, 30 & 13)
N30
25
2113
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SPECIFIC ACTION
PROJECTS
CSO AND WPCS CONTROL
MEASURES
CMOM, FOG AND EMERGENCY RESPONSE
MUD RUN PUMPING STATION
CSO Long Term Control Plan Update
• 10 – wet weather storage basins• 2 – large diameter, underground storage tunnels• Improvements to the Water Pollution Control Station• Main Outfall Interceptor Relief Sewer and Pump Station• Ohio Canal Interceptor Tunnel Enhanced High Rate
Treatment (EHRT)
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26/28 27/29
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5/7
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Ohio CanalInterceptorTunnel
Northside Interceptor Tunnel
SPECIFIC ACTION
PROJECTS
CSO AND WPCS CONTROL
MEASURES
CMOM, FOG AND EMERGENCY RESPONSE
MUD RUN PUMPING STATION
Capacity, Management, Operation and Maintenance
Sewer System Component and Equipment Inventory
Daily CSO Rack Inspection/Cleaning
Condition Assessment– Two weeks following SSO– 20% gravity sewer each year– All manholes every 5 years
Cleaning every 5 years
Repair and Replacement
FOG Program
Emergency Response Plan
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Collection System Study
Mud Run Pump Station Remedial Report
Design and Construction Mud Run Pump Station, Flow Equalization and Collection System Improvements
Pump Station Study
SPECIFIC ACTION
PROJECTS
CSO AND WPCS CONTROL
MEASURES
CMOM, FOG AND EMERGENCY RESPONSE
MUD RUN PUMPING STATION
Mud Run Pump Station Program
Current CSO ProjectsRack 12 Storage Basin (Design)
Rack 13 Separation Project (Design)
Rack 14 Storage Basin (Design)
Rack 15 Storage Basin (Design Complete) …. Bid 2013
Rack 21 Separation Project (Design)
Rack 30 Separation Project (Design)
OCI Tunnel (60% Design)
Mud Run Pump Station (Design Complete) …. Bid 2013
Step Feed Phase 1 (Construction Complete) …. 2013
BioACTIFLO Pilot Study (Complete) ….2013
CSO Program Management Team Page 16
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Ohio Canal Interceptor (OCI)Tunnel
To control overflows from Racks 4, 16, 17, 18, 19, 20, 21, 23, 24, and 37 that discharge into the Ohio Canal and Little Cuyahoga River
Storage requirement – minimum of 28.6 Million Gallons
20 ft. in diameter, 6,220 feet in length with 15 million gallon storage tank at the downstream end
Construction will occur between 2014 and 2018
CSO Program Management Team Page 17
Rock tunnel alignment located west of downtown Akron, from Canal Park stadium area to Little Cuyahoga River at Otto Street.
Storage tank at Little Cuyahoga River end of tunnel.
CSO Program Management Team Page 18
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Storage Tank Near Maple and Hickory
CSO Program Management Team Page 19
Questions?Questions?
City of Akron Combined Sewer Overflow (CSO)
Program
September 20, 2013
City of Akron – Hickory & Otto Street Residents – Public Meeting September 25, 2013 – Meeting Presentation
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Ohio Canal Interceptor TunnelProject Management Team
Ohio Canal Interceptor TunnelProject Management Team
Hickory St and Otto StPublic Information Meeting
September 2013
September 25, 2013
Agenda
CSO Long Term Control Plan Program Management Team Page 2
Welcome and Introductions
CSO Program Overview and Background
Ohio Canal Interceptor Tunnel (OCIT) Project Overview
Description of What Will Be Built
Construction Activities and Impacts
Project Status and Schedule
Questions & Answers
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CSO Program
Overview and Background
CSO Long Term Control Plan Program Management Team Page 3
• Construction of Combined Sewers• First Akron Treatment Facility
1910-1930
• 1938 - End of Combined Sewer Construction• Construction of Water Pollution Control Station• 90% of Akron Sewer System Constructed
1940-1960
• 1972 - Clean Water Act• Major Improvements to Water Pollution Control
Station and Collection System• Akron begins assessment of CSOs (prior to Law)
1970-1990
CSO Program Management Team Page 4
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• Updated Facilities Plan and CSO LTCP• Understanding with State
1999-2002
• Negotiations with US EPA• US EPA Complaint• Consent Decree (Design/Implement CD) Lodged
in Court
2002-2009
• Fairness Hearing• Consent Decree Rejected Court• Akron/US EPA Appeal• US EPA and Ohio EPA Approve Akron CSO LTCP
(Implement CD)• 2nd Court Hearing
2010-2012
CSO Program Management Team Page 5
Proposed Consent Decree Elements
SPECIFIC ACTION
PROJECTS
CSO AND WPCS CONTROL
MEASURES
CMOM, FOG AND
EMERGENCY RESPONSE
MUD RUN PUMPING STATION
Long Term Control Plan (LTCP) Update and Report
CD: Complete all projects by October 15th, 2028LTCP Update : October 31, 2027
• 10 – wet weather storage basins• 2 – large diameter, underground storage
tunnels• Improvements to the Water Pollution
Control Station• Main Outfall Interceptor Relief Sewer and
Pump Station• Ohio Canal Interceptor Tunnel Enhanced
High Rate Treatment (EHRT)
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Current CSO ProjectsRack 12 Storage Basin (Design)
Rack 13 Separation Project (Design)
Rack 14 Storage Basin (Design)
Rack 15 Storage Basin (Design Complete) …. Bid 2013
Rack 21 Separation Project (Design)
Rack 30 Separation Project (Design)
OCI Tunnel (60% Design)
Mud Run Pump Station (Design Complete) …. Bid 2013
Step Feed Phase 1 (Construction Complete) …. 2013
BioACTIFLO Pilot Study (Complete) ….2013
CSO Program Management Team Page 7
Ohio Canal Interceptor (OCI)Tunnel
To control overflows from Racks 4, 16, 17, 18, 19, 20, 21, 23, 24, and 37 that discharge into the Ohio Canal and Little Cuyahoga River
Storage requirement – minimum of 28.6 Million Gallons
20 ft. in diameter, 6,220 feet in length with 15 million gallon storage tank at the downstream end
Construction will occur between 2014 and 2018
CSO Program Management Team Page 8
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Ohio Canal Interceptor Tunnel
Overview
CSO Long Term Control Plan Program Management Team Page 9
CSO Program Overview – CSO Tunnel
CSO Long Term Control Plan Program Management Team Page 10
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OCIT Overall Plan
CSO Long Term Control Plan Program Management Team Page 11
OCIT Basin Area Construction
CSO Long Term Control Plan Program Management Team Page 12
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Description of Proposed Facilitiesnear Hickory Street and Otto Street
CSO Long Term Control Plan Program Management Team Page 13
Planned Work
36” Water Main Relocation
Towpath Trail Realignment
Little Cuyahoga Interceptor Rehabilitation
Storage Basin
20-foot I.D. Tunnel
Hickory St Junction Chamber and connector sewers
CSO Long Term Control Plan Program Management Team Page 14
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36” Water Main Relocation
CSO Long Term Control Plan Program Management Team Page 15
Towpath Trail Realignment
CSO Long Term Control Plan Program Management Team Page 16
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Little Cuyahoga Interceptor Rehabilitation
CSO Long Term Control Plan Program Management Team Page 17
Storage Basin and Tunnel
CSO Long Term Control Plan Program Management Team Page 18
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Aerial view of Basin – Finished Grading
CSO Long Term Control Plan Program Management Team Page 19
Little Cuyahoga River Bank Stabilization
CSO Long Term Control Plan Program Management Team Page 20
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OCIT-1 Consolidation Sewers
CSO Long Term Control Plan Program Management Team Page 21
Construction Activitiesand Impacts
CSO Long Term Control Plan Program Management Team Page 22
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Storage Basin and Tunnel
CSO Long Term Control Plan Program Management Team Page 23
Existing Basin Site – Tree Clearing
CSO Long Term Control Plan Program Management Team Page 24
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Temporary Bridge
CSO Long Term Control Plan Program Management Team Page 25
Tunnel Construction – Tunnel Boring Machine
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Impacts During Construction - Traffic
CSO Long Term Control Plan Program Management Team Page 27
After Construction - OCIT Storage Basin
CSO Long Term Control Plan Program Management Team Page 28
NOTE: Slide included a 3-D fly-through which appears as a blank image when printed.
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View from Towpath across from Mustill St.
CSO Long Term Control Plan Program Management Team Page 29
View from Towpath across from Otto St.
CSO Long Term Control Plan Program Management Team Page 30
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View from end of Otto St.
CSO Long Term Control Plan Program Management Team Page 31
Schedule
CSO Long Term Control Plan Program Management Team Page 32
2014 Construction Season– Little Cuyahoga Interceptor Sewer Rehabilitation– Towpath Relocation– 36” Water Main Relocation
OCIT Main Contract: 2014-2018– Basin begins– Tunnel is mined– OCIT-1CS: 2016-2018– Basin is completed
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City of Akron City of Akron Combined Sewer Overflow (CSO) Combined Sewer Overflow (CSO)
Long Term Control Plan Long Term Control Plan
City of Akron City of Akron Combined Sewer Overflow (CSO) Combined Sewer Overflow (CSO)
Long Term Control Plan Long Term Control Plan
Ohio Canal Interceptor Tunnel Ohio Canal Interceptor Tunnel –– OverviewOverviewDowntown Akron Partnership Downtown Akron Partnership BlockwatchBlockwatch MeetingMeeting
October 17, 2013
What is a Combined Sewer Overflow?
CSO Program Management Team Page 2
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CSO Program Management Team Page 3
Sewer System Components
1,358 miles of pipe
22.2 miles of force mains
28,528 manholes
38 pump stations
36 CSO racks
2 CSO storage basins
22,834 inlets
649 storm outfall locations
Page 4CSO Long Term Control Plan Program Management Team
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Akron CSOs
CSO Program Management Team Page 5
City’s Proposed Consent Decree
CSO Program Management Team Page 6
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Major Elements of City’s Consent Decree
Submit plans for Emergency Response and Capacity, Management, Operations, and Maintenance programs
Complete specific capital improvement projects at the Water Pollution Control Station and collection system
Submit Long Term Control Plan
Complete all projects by October 15th, 2028
Stipulated Penalties
Failure to Implement Requirements of LTCP
Failure to Complete Specific Action ProjectsFailure to Complete Specific Action Projects
Failure to Inspect and Clean Collection System
Failure to Complete Mud Run Pump Station Improvements
Penalties– Day 1 to 30 = $1,500 per day– Day 31 to 60 = $3,000 per day– After 60 days = $5,000 per day
CSO Program Management Team Page 8
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STORAGE BASINS AND SEWERSTORAGE BASINS AND SEWER SEPARATION PROJECTS
CSO Program Management Team Page 9
Akron’s Plan will Utilize Various Controls to Address Wet Weather Flows
10 – wet weather storage basins
Sewer separation projects
2 – large diameter, underground storage tunnels
Improvements to the Water Pollution Control Station
Main Outfall Interceptor Relief Sewer and Pump Station
Sewer inspection and cleaning
Mud Run Pump Station
Enhanced High Rate Treatment
CSO Program Management Team Page 10
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STORAGE TUNNELSSTORAGE TUNNELS
CSO Program Management Team Page 13
NNorthside Interceptor Tunnel
Ohio CanalInterceptorTunnel
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OHIO CANAL INTERCEPTOROHIO CANAL INTERCEPTOR TUNNEL
CSO Program Management Team Page 15
OCI Tunnel
This tunnel will reduce overflows from Racks 4, 16, 17, 18, 19, 20, 21, 23, 24, and 37 that discharge into the Ohio Canal and Little Cuyahoga River
The tunnel is required to store a minimum of 28.6 Million Gallons. We are planning a 20 foot diameter tunnel, approximately 6100 feet long with a 15 MGD basin at the end.
Construction will occur between 2014 – 2018Construction will occur between 2014 – 2018
There are stipulated penalties if this project is not advertised by a certain date or constructed by a certain date.
CSO Program Management Team Page 16
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Rack 37
CSO Program Management Team Page 23
Schedule
2014 Construction Season– Little Cuyahoga Interceptor Sewer Rehabilitation
T th R l ti– Towpath Relocation– 36” Water Main Relocation
Ohio Canal Interceptor Tunnel Contract: late 2014-2018
CSO Long Term Control Plan Program Management Team Page 24
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Other downtown CSO projects:
Rack 15 Storage Basin
Rack 21 Separation
Rack 22 Storage Basin
CSO Program Management Team Page 25
City of Akron City of Akron Combined Sewer Overflow (CSO) Combined Sewer Overflow (CSO)
Long Term Control Plan Long Term Control Plan
City of Akron City of Akron Combined Sewer Overflow (CSO) Combined Sewer Overflow (CSO)
Long Term Control Plan Long Term Control Plan
Questions?Questions?
October 17, 2013