Water, Climate and Southeast Florida: Regional Challenges, Strategies, and Solutions

Transcription

1 Water, Climate and Southeast Florida: Regional Challenges, Strategies, and Solutions April 15, 2016 The United Conference of Mayors Mayor s Water Council Jennifer L. Jurado, Ph. D., Director Environmental Planning and Community Resilience Division

2 Broward County Stats 2/3 Everglades 1/3 Urban Population: 1.8 million residents 2 nd largest in State 18 th largest in U.S. Growth Ranks among top 2.5 million by yr job growth est. 42% Area: 1,300 square miles Less than 1/3 developed Built-out Sawgrass to Seagrass

3 Water Resources and Management Complex system 1,800 miles of canals Shallow aquifer Porous geology 39 wellfields, 220 MGD Diverse governance 31 cities 28 water utilities 23 special districts 15 wastewater utilities Canal Network Biscayne Aquifer

4 Challenges Increasing demands MGD by 2035 Saltwater water intrusion Climate change pressures Quantity and quality Ocean outfall legislation 46.5 MGD Reuse 60% of flows Reuse requirements - 60% of County Saltwater Migration

5 Regional Coordination on Water Policy County-wide Integrated Water Resources Plan Water Advisory Board Water Resources Task Force Building codes Irrigation restrictions Planning Modeling Reclaimed Water Master Plan Grants Program Programs Conservation Initiatives

6 Climate Change Compounds Challenges Sea level rise Extreme rainfall High Tide Flooding 09/2015 Increased drought Rising water table Photo Credit: Sun-Sentinel Saltwater intrusion 16 rainfall event December 2009

7 Unique Vulnerabilities Everglades Watershed Regional Coastal Water Control Structures Area < 3 feet above Sea Level Characteristics: Peninsula Flat, low-lying Dense coastal development Coastal structures 300+ miles of seawalls Average elevation < 5 ft above sea level

8 What s the Urgency? Unified Sea Level Rise Projection for Southeast Florida Measured SLR: 9 since 1900 (3 in last 23 years)

9 Building standards are outdated

10 SLR not captured in flood maps

11 Vulnerable sites are under development

12 October 2015 High Tides

13 Impacting Diverse Investments

14 Stormwater System as Conduit

15 Tidal Inundation No Water Frontage

16 Rising Ground Water Levels Recent Trend in Coastal GW Elevations Increase in Wet-Season GW Elevation (relative to SLR) Measured Modeled: Year 2060

17 Implications Drainage and Flood Protection Reduced soil storage Compromised drainage wells Stormwater systems Wastewater Systems Increase infiltration and inflow Septic Systems Impacts to drainage fields Reduced treatment and function Water Management Operations Increase need for pumping S13 Pump Station

18 Impacts Extend Inland

19 Increased Flooding Community-wide Storm-induced Tidal and Surge Impacted water managements systems

20 Adding to Water Quality Concerns In 2016, Broward County and Cities will collectively have 12 TMDLs SLR and extreme storms = less storage and increased pumping Limited retention = less pre-treatment Source controls will not fully address Will require innovative strategies as well as acknowledged reality of future conditions and constraints.

21 Additional Impacts to Water Supplies 35 MGD in predicted loss of water supply wells 40% coastal wellfield capacity 16% total wellfield capacity Today 2060: 2 feet SLR Fort Lauderdale Dania Beach Predicted Hollywood Hallandale

22 Challenges Shared Across Region 4 Counties, 110 Cities 5.8 million residents Accounts for 1/3 state GDP Major ports and airports Tourist driven economy Unique natural resources

23 Regional Collaboration in Resiliency: SE Florida Regional Climate Change Compact Initiated in October 2009 Product of 1 st Annual Summit Response to shared challenges and needs Voluntary collaboration )

24 Compact Commitments Provides for: Policy collaboration and advocacy Development of regional planning tools Creation of a Regional Climate Action Plan Hosting of annual summits )

25 Compact Staff Steering Committee Representatives from each county government Municipal representative from each county (2-year term) Non-voting representatives Environmental Regional Water Management Facilitators/Advisors

26 Additional Collaborating Partners

27 Early Technical Work Products All documents available at

28 Regional Climate Action Plan To integrate climate adaptation and mitigation into existing systems, through existing processes. 5-yr Focal Areas Water Supply, Management, and Infrastructure Sustainable Communities and Transportation Natural Systems Agriculture Energy and Fuel Risk Reduction and Emergency Management Outreach and Public Policy Includes companion Implementation Guide 110 Recommendations: Adaptation and Mitigation

29 Expanded Support: Mayor s Pledge

30 Compact Organizational Structure (2010) Mayors, Managers and/or Commissions Compact Staff Steering Committee Policy Development, Coordination & Advocacy Team Summit Planning Team Regional Work Groups

31 Compact Organizational Structure (2016) Mayors, Managers and/or Commissions Other Partners Friends Policy Development, Coordination & Advocacy Team Compact Staff Steering Committee Summit Planning Team Shoreline Resilience SLR Regional Work Groups Municipal Work Group RCAP Climate Indicators

32 Major Accomplishments Adoption of Regional Action Plan (2012) Integration of climate change across operations Water, transportation, land use, comp planning, emergency mgmt., etc. Regional Sea Level Rise Projection (2012, 2015) Adoption by counties and 1/3 Broward cities Capacity Building RCAP Implementation Workshops Topical Work Groups South Florida Resilient Redesign

33 Major Accomplishments, cont. Policy change to Growth Management Act Adaptation Action Area (AAA) planning designations Advanced regionally and statewide Cross-sector engagement Business Construction Risk Finance Secured external resources Kresge, EPA, RAND Sustained regional commitment Changes in leadership Dedication of funds in FY 16 Broward Designated Adaptation Action Area

34 South Florida Resilient Redesign Dania Beach Delray Beach Hollywood Miami-Beach Key West Miami-Dade Protective Reef Naturally Buffered Boulevard Enhanced and Functional Dunes

35 Key Strategies: Distributed Water Storage Sweetwater, Miami-Dade County

36 Holistic Water Management Approach Infrastructure connectivity Wetland rehydration and enhancements City of Hollywood, Broward County Roadways as drainage conduits (green streets) Drainage Divide Construction of a Hydric Park Repurposing of ocean outfall for floodwater discharges

37 Resiliency Investments Taking Shape Expanded use of: Stormwater pumps One-way valves Deep wells Pompano Beach Regional Efforts to Build Storage (Water supply and flood mitigation) Miami Beach

38 The C51 Reservoir: A Multi-Jurisdictional Water Resource Development Project 10-year collaboration 150 MGD water supply potential $450 M (Phase 1 and 2) Climate resiliency benefits include: Stormwater reuse Water resource diversification Flood protection Environmental enhancements Palm Beach Broward Miami Dade

39 Year 2065 Base Status Quo: Migration of SW Front (Permitted Demands) Deerfiel d East Managed SW Front (2065 Demands w/ Demand Shift) Deerfield East North Regio nal Deerfield West BC 2A North Regio nal Deerfield West BC 2A Hillsboro Hillsbor o Pompano Palm Aire Pompan o Airport Pompan o Palm Aire Pompan o Airport

40 Additional Resiliency Examples High tides October 2015 Fort Lauderdale, SR A1A - November 2012 Sea wall improvements Community Reinforcing dune infrastructure project 2014

41 Challenges Changes in national flood program Speed of development Length of government process Reliance on phased implementation Need for coordinated investments Fear of inherited liabilities Organization of resources

42 Benefits of Compact Process Regional collaboration has: Accelerated regional and local planning Expanded expertise Produced transferable models Enhanced access to resources and information Broadened partnerships Cultivated cooperation Inspired innovation

43 Next Steps Formalize structure of Compact via interlocal agreement (Chapter F.S.) Collaboration with RAND Corporation Regional land use, planning, and economics USACE Partnerships Resiliency standards Economics Expanded business engagement: development, design and regional economics Increased focus on emissions 2017 Regional Climate Action Plan Update

44 Questions?