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EPA's new strategy on gi region v partner
1. EPA’s New Strategy on Green
Infrastructure
Region V Partner: Cleveland/Northeast
Ohio Regional Sewer District
Kellie C. Rotunno, P.E., BCEE, M.ASCE
Director of Engineering & Construction
2. Agenda
• NEORSD CSO Plan Overview
• How NEORSD’s Consent Decree
Turned Green
• Cleveland’s GI Opportunities
• Cleveland’s GI Realities
– Lifecycle Cost Comparisons
• Pathway to Compliance
10. Increased Tunnel Sizes
Considered to Further
Enhance LOC
December
Original
2009
Difference
Plan
Proposal
Increased Add’l Vol.Ctrl. Cost / Add'l
Dia OF Dia OF Cost (MG) Gal
Shoreline Storage Tunnel 21’ 3 25’ 1 $63.8 M 14.62 $4.36
Doan Valley Tunnel 17’ 3 20’ 1 $42.5 M 12.73 $3.34
Westerly Tunnel 18’ 4 28’ 1 $75.7 M 35.04 $2.16
Totals $182 M 62.39 MG $2.92
11. Doan Valley Tunnel Sizing
Maintained (upsized
consolidation sewers)
Shoreline Tunnel Sizing
Maintained (upsized
consolidation sewers)
Westerly Tunnel Increased
From 18’ to 24’
11
12. Additional Levels of Control
Achieved Through
Traditional Gray and GI
Tunnel System Additional Capital Additional Annual
Costs ($M) CSO Capture (MG)
Shoreline Tunnel $11 3.07
(Upsized Consolidation Sewers)
Doan Valley Tunnel $2.27 1.12
(Upsized Consolidation Sewers)
Westerly Tunnel $39.87 14.02
(Upsized tunnel from 18’ to 24’)
Subtotal $53.14 18.21
Additional Annual CSO
62.39
Capture Goal
Remaining Annual CSO
$42M 44.18
Capture Goal
13. Green Infrastructure (GI)
Proposed In-lieu of Bigger Tunnels
LOC b
44
LOCa District Proposed Gray CSO MG
District Proposed Gray CSO
Million
Capture
Capture
Gallons
District District Proposal
Proposal + Green
Infrastructure
14. CONSENT DECREE GREEN
INFRASTRUCTURE
Appendix 3: 44 million gallons
Components
Appendix 4: Green for Gray
Appendix 3: 44
REMAINING MG of additional
CSO control
through GI
Appendix 4:
GRAY CAPTURE Opportunity to
4,037 million gallons
replace gray with
green
infrastructure
Consent Decree Requirements
15. Consent Decree Timelines
Appendix 3
Appendix 3
Compliance
GI Plan
Review
Submittal
Appendix 3
Post Construction
Monitoring Plan
Submittal
2010 GRAY INFRASTRUCTURE TIMELINE 2035
16. USEPA Region V GI Partner
Cleveland/NEORSD
Green Infrastructure USEPA works with partners
partners
– Austin
as model communities
– Boston
• Advance GI
– Cleveland
– Denver • Inform and guide
– Jacksonville national policy
– Kansas City
– Los Angeles
– Puyallup, WA
– Syracuse
– Washington, DC
21. Identification of
Priority Areas
for 44 MG/$42 million
Green Infrastructure Index
Well-drained soils
Available land
Partnering
opportunities
Imperviousness
Parks > 3 acres
Greenways
Annual CSO volume Collection system response Development
opportunities
26. Concept for Priority
Area E-11
Green street and new
storm sewer in trench
Stormwater with relief sewer
control in Beulah
Park
Use existing separate
storm sewers
27. Concept for Priority
Area E-11
Incorporate GI Potential for 2.5
features within million gallons of CSO
Tunnel/Relief Sewer reduction in typical
construction corridor year
29. Zeroing-in on 44 MG of
Additional CSO Control
CSO Area: 52,000 Acres
Priority Areas ~13,000 Acres
GI Projects ~1,000 Acres
30. Approach within
Priority Areas
• Approach to site evaluation and project
development
– Seek stormwater offloading opportunities
where possible
– Incorporate community and transformational
benefits
– Repurpose vacant land
– Support viable partners
31. Land Requirements &
Partnerships
Land Requirements – Maximize use of
vacant land
• City of Cleveland
• Cuyahoga County Land Reutilization Corporation
Partnership Opportunities – Build on
existing efforts
• University Circle Inc.
• Burten, Bell, Carr Community Development Corporation
• Slavic Village Community Development Corporation
• Greater Cleveland Regional Transit Authority
• Neighborhood Progress, Inc.
• ParkWorks
• Cleveland Urban Design Collaborative
33. Green-for-Gray
Opportunities
• Consent Decree Appendix 4 allows on-
going evaluation for eliminating or down-
sizing of Gray Infrastructure through use
of GI
• No timeframe limitations other than
linkage to associated gray project design
34.
35.
36.
37.
38. Lifecycle cost estimates
Developed consistent with “Gray”
• Lifecycle costs Lifecycle
Costs
Replace /
Renew
O&M
• Design & construction
Operation &
maintenance
Energy costs
O&M
Construction
Maintenance
Operations
Construction
Replace / Renew
Restore effectiveness
Other Benefits: “triple bottom line”
Green Gray
40. GI Compliance
Requirements
• GI Study Submittal December 31, 2011
• Use of hydraulic/hydrologic model
– Demonstrate Final LOC provided by CSO
LTCP Projects
– Demonstrate Final LOC including CSO LTCP
Projects + GI Projects
• Evaluation of EJ Considerations as co-
benefit to GI Program
41. Next Steps in GI Program
Development and
Implementation
Appendix 3: GI
Feasibility Study
Complete
Appendix 4: Remaining
Doan Valley
Tunnel “
Preliminary
(30%) Design of
GI Projects Consent
Decree GI
GI Early Action
Project Completion
Identification, Fi Mandate
nal Design & 7/8/2019
Construction
Full Program
Final Design and
Construction
2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
42. Green Lessons Learned
• Focus on “Additional CSO Capture” skews
the type and locations of GI Projects
• GI behaves differently than Gray
Infrastructure throughout the range of
anticipated storms
• Focus on CSO volume reductions requires
hydraulically different approach from
traditional stormwater LID
Hinweis der Redaktion
Created in 1972 by Court Order Political subdivision of the State of Ohio Governed by a seven-member Board Has a 355 square-mile service area Serves all or part of 62 communities Serves over one million people Treats 230 million gallons of wastewater per day
Collinwood Rec – basins in front on Lakeshore and in rear by Humphey Park, bioswales in parking lots, 15000 gallon cistern for roof runoff and collecting back portion of Humphey Park because of past wet areas – added swale to bring into basin. Designed to LEED standards.2.4 MG of CSO reduction