6. Costs
• $15.3B (66%) of capital commitments for 2002-2012 were driven by mandates
• Mandates account for only 21% of the $6.6B 2013-2016 Capital Plan
2002-2016 Capital Expenditures and Debt Service Impact
$4,000
$3,000
$ in Millions
$2,000
$1,000
$0
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
Fiscal Year
Commitments Expenditures Net Debt Service
6
7. DEP Electricity Consumption
• Between 2012-2017, electricity use is expected to increase by 289 million kWh (44%)
• Most of the increase will come from the new Croton Filtration Plant and U/V Disinfection
Facility
1000
900
U/V Facility
289 million
800
kWh Croton Filtration Plant
700
Manhattan PS
Tallman Island
kWh (in millions)
600
Owls Head
Oakwood Beach
500 Hunts Point
Coney Island
400 26th Ward
Bowery Bay
300 Wards Island
200
Newtown Creek
100 Jamaica
North River
0
2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
Fiscal Year
Revised: 1/31/13
7
10. Grey Investments
Newtown Creek WWTP Paerdegat Basin CSO Facility
More than $10 billion in wastewater investments since 2002
• $5 billion – Newtown Creek Wastewater Treatment Plant upgrade
• $437 million – Paerdegat Basin CSO Facility
• $500 million – Hunts Point Wastewater Treatment Plant upgrade and
nutrient removal
• $100 million – Nitrogen control upgrades at 26th Ward, Coney
Island, and Rockaway wastewater treatment plants
10
12. The Green Strategy Approach Performs Better
GREEN STRATEGY GREY STRATEGY
30,000
2045 BASELINE - PROJECTION
FROM 2007 FACILITY PLANS
-5,666 built/under construction -5,666 built/under construction
25,000
-2,602 planned -2,547 planned
Annual CSO Volume (millions of gallons)
21,698 -1,701 21,753 -1,945 19,808
20,000
-1,514 17,896
-586
15,000
10,000
5,000
-
Cost-Effective Reduced Flow Green Optimize Green Strategy Cost-Effective Potential Tanks, Grey Strategy
Grey Infrastructure Existing System Grey Tunnels, &
Investments (10% Capture) Investments Expansions
(Built & (Built &
Planned) Planned)
12
13. The Green Strategy Costs Less
$8.0
$7.0 $6.8
$6.0
$5.3
$0.03
$5.0
$0.9 $3.9
$4.0 $2.4
$1.5
$3.0
$2.0
$2.9 $2.9
$1.0
$-
Green Strategy Grey Strategy
Potential Tanks, Tunnels, & Expansions Optimize Existing System
Green Infrastructure - Private Investment Green Infrastructure - Public Investment
Reduced Flow Cost-Effective Grey Investments
13
14. Long Term Control Plans
Multi-Family Residential
Planned Right-of-Way Housing (NYCHA)
Projects (DOT)
Public Schools
(DOE)
Parks & Playgrounds
Community Gardens (DPR)
(DPR) 14
14
16. Performance of Bioswale System
Percent Capture of 10 Bioswales
Rainfall (in.) Mean Median
Below 1” 73% 85%
1”-2” 25% 21%
Above 2” 14% 12%
Total 59% 60%
• Percent of rainfall captured by 10 bioswales over 185 rain events.
• Bioswales performed best during storms with less than one inch of rain.
16
Image taken at Rockaway Beach on the evening of Monday, October 29, 2012.
Fire in Breezy Point – nearly 100 homes completely destroyed. Flooding limited firefighter access; damage to private water main network forced firefighters to pump seawater to fight fire. As the private water system became compromised, DEP employees arrived on location and directed FDNY to NYC water mains which had the pressures required to fight the fire.Major street and home flooding – 760 red tagged buildings (uninhabitable, structurally unsound); 6700 yellow tagged buildings (require major reconstruction)Transit system – Commuter rail and subway flooding and severe damage. Subways closed for two days after the storm, no subways in Lower Manhattan for five days.Seven subway tunnels under the East River flooded. Metro-North Railroad lost power from 59th Street to Croton-Harmon on the Hudson Line and to New Haven on the New Haven Line. The Long Island Rail Road evacuated its West Side Yards and suffered flooding in one East River tunnel. The Hugh L. Carey Tunnel is flooded from end to end and the Queens Midtown Tunnel also took on water and was closed. Six bus garages were disabled by high water.
Average Volume Capacity 300 CF (2250 gal.)Average Impervious Area Managed 3,600 SFAverage Design Costs per ROWB $6,000-$8,000/bioswale (includes Design, Geotechnical, & Survey) Average Construction Costs per ROWB (depending on allowances) $15,000-$25,000Construction Targets (approx.)2013: 1602015: 6,0002017: 7,500
DEP has committed $6.4 million to date and 19 projectsTwo projects complete; three starting construction this springRemaining 2011-2012 are in various design stages, most expected to be finished this spring.In the process of reviewing applications for the City’s third Green Infrastructure Grant Program and expect to announce winners on Earth Day 2013