Omaha CSO Program and the South Omaha Industrial Area Lift Station, Force Main and Gravity Sewer Projects November 16, 2010 Welcome Agenda CSO Program Overview Community Enhancements Project Overview Detours Questions and Answers Break Out Sessions to Review Plans 1
Challenges Facing Omaha Meeting the increased requirements of the federal Clean Water Act Balancing the following needs: Regulatory compliance Economic affordability Community acceptance Economic Affordability Community Acceptance CSO Solutions Regulatory Compliance 772+ CSO Communities Nationwide 2
Wet weather inflows exceed the CSS capacity and trigger a CSO Stormwater Runoff Roof Leaders Combined Sewer Overflow Catch Basins Combined Sewer Interceptor Sewer to Wastewater Treatment Facility Sanitary Sewer River Omaha Sewer Service Area Two regional treatment plants g p One smaller treatment plant 10 wholesale users 275 sq mi drainage area 600,000 service population 3
CSO Consent Order Timeline 5 Major Elements of Final Long Term Control Plan Targeted Sewer Separation Projects 2 High Rate Treatment Facilities One Deep Conveyance Tunnel 4
5 Major Elements of Final Long Term Control Plan Two Underground Storage Tanks One Large Stormwater Conveyance Sewer LTCP Costs (2009 dollars) Project Category Program Cost Deep Tunnel Project $ 442,082,000 000 Minne Lusa Stormwater Collector Projects $ 112,750,000 High Rate Treatment Projects $ 126,326,000 South Interceptor Force Main Project $ 77,249,000 MRWWTP Improvements $ 90,934,000 Lift Station Projects $ 131,196,000 Storage Structure Projects $ 30,878,000 Sewer Separation Projects $ 614,361,000 Miscellaneous Projects $ 36,448,000 TOTAL $ 1,662,224,000 5
Sustainable Program Funding Funding the Program The federal mandate for the Omaha system is to increase wet weather capacity to reduce sewage overflows Contribute to the overflows All area customers Benefit from improvements to regional water quality Will help fund the improvements 6
Financing the Program Bond Financing Spread costs over the longerterm Sewer rates will pay debt service Rating agencies upgraded bond rating Matching costs to life span of asset Cost savings over time Reduced interest rates Proportion of Revenues by User Type Large Commercial 3% General Commercial 23% Large Industrial 6% Bulk 8% General Residential 60% *2007 7
Average Residential Sewer Bills: Past, Present, and Future $40.00 $35.00 $37.23 $30.00 $25.00 $20.00 $15.00 $10.00 $5.00 $0.00 2006 2007 2008 2009 2010 2011 2012 2013 2014 Monthly Household Bill Omaha versus National Average * *NACWA, 2008 8
Affordability Issues: Who Pays for Assistance Programs? Rate Payer Assistance Developed by stakeholder committee Partnership with ithmud M.U.D. s funding from the Nebraska Low Income Energy Assistance Program Typical residential sewer cost is 11% of total M.U.D. bill currently 2011 rates provide up to $1M for assistance Assistance funding to increase 15%/yr Opportunity to re-evaluate state program for energy assistance 9
Community Enhancements CSO Projects Criteria for infrastructure replacement funded with CSO resources. The project reduces the impact of storm water on the system Implementation fits the new design standards Community Enhancements Sewer Separation Projects Infrastructure examples funded with CSO resources. Bio-retention swales & green solutions for stormwater management Install/replace sidewalks Utility relocation 10
Community Enhancements CSO Projects Infrastructure Enhancement Opportunities with external funding. Streetscape enhancements Public art for streets Street furniture benches, bike racks, kiosks Bicycle lanes, pedestrian trails, pathways South Omaha Industrial Area Project Overview 11
CSO Program Related Projects in Your Area South Omaha Sewer Separation MR Treatment Plant South Omaha Industrial Lift Station South Omaha Industrial Force Main and Gravity Sewer Monroe Sewer Separation Gilmore Sewer Separation South Omaha Project Objective Keep high strength meat packing sewage from mixing with storm water that overflows into the Missouri River during rain events 12
Project Goals Improve water quality and meet EPA requirements Reduce odors Minimize disruption to businesses and residents Integrate green and sustainable solutions Provide opportunities for community enhancements Existing Sewer System MRWWTP Outfall Monroe St. Lift Station North Barrel Sewer Outfall 13
How the current sewer system works Sewage from Industries MR WWTP Overflow Pipe MISSOURI RIVER North Barrel Sewer Overflow Pipe Storm Water Sewage from Homes and Business Project Locations and Route 13th St Gravity Sewer Y St Storm Sewer Gravity Sewer Force Main Sewer Lift Station 14
The sewer system in the future Sewage from Industries New Force Main MRWWTP MISSOURI RIVER New Lift Station New Treatment Facility New CSO Treatment Facilities Storm Water Sewage from Homes and Business What is a Lift Station? 15
What is a Force Main and Gravity Sewer? 1190 1170 1150 1130 1110 1090 1070 1050 1030 1010 990 970 950 Force Main Sewer Gravity Sewer Ground Flow Flow Lift Station -250 250 750 1250 1750 2250 2750 3250 3750 4250 4750 5250 Schedule 2010 2011 2012 2013 Public Meetings 16
Community Enhancement Possibilities Mt. Vernon Gardens Park Trail Community Enhancement Possibilities - Gilmore Ave Parcel 17
Force Main Sewer & Storm Sewer Route Storm Sewer Force Main Lift Station Industrial Lift Station Facility 18
MUD Utility Relocations - Water MUD Utility Relocations - Gas 19
Gilmore Ave Y Street MTA Bus 13 th Street Anticipated Detours Gilmore Ave Detour 20
Y Street Detours 13th Street Detour Y Street X Street 13th Street North 21
Summer 2011 Next Public Meeting What to Expect During Construction Meet the Contractor and Construction staff Scheduling Break Out Sessions Jeff Ray jray@wadetrim.com adetrim 345-3900 Ned Tramp ntramp@ci.omaha.ne.us 444-4966 www.omahacso.com CSO Hotline: 341-0235 22