1. www.broward.org/climatechange Climate Change and Water Resources Presentation to the West Palm Beach Green Task Force May 6, 2010 Nancy J. Gassman, Ph.D. Natural Resources Administrator Broward County Environmental Protection and Growth Management Department

2. www.broward.org/climatechange Our past... 100 years ago Clematis Avenue looked like this.

3. www.broward.org/climatechange looked different than our present... Clematis Avenue today

4. www.broward.org/climatechange and our future. West Palm Beach in 2100? Planning today shapes our tomorrow.

5. www.broward.org/climatechange Looking Forward Climate Change and its impacts will be a dominant agent of change in SE Florida. Action including careful coordinated planning is needed to sustain our economy and to ensure a climate-resilient SE FL community. Adaptation to water resource issues are central to sustainability…and are already being impacted.

6. www.broward.org/climatechange a)Drinking water a)Demand b)Availability of existing and future water supply c)Treatment requirements b)Predictability of Rainfall/Storm events c)Drainage d)Utility carbon footprint Critical Water Resource Concerns

7. www.broward.org/climatechange Development, even in high risk areas, is expected to continue

9. www.broward.org/climatechange Sea Level Rise Implications Saltwater intrusion into the aquifer Drainage and flood control compromised

10. www.broward.org/climatechange a)Drinking water a)Demand b)Availability of existing and future water supply c)Treatment requirements b)Predictability of Rainfall/Storm events c)Drainage d)Utility carbon footprint Critical Water Resource Concerns

11. www.broward.org/climatechange Extreme Weather (12/17-19/09) 8-16 inches rainfall

12. www.broward.org/climatechange Extreme Rain Event Hollywood/Hallandale Photo: Sun Sentinel (12/17-19/09) 8-16 inches rainfall

13. www.broward.org/climatechange Tropical cyclones and climate change Hurricane Intensity ↑ Hurricane Intensity ↑ Storm Frequency ↓ Storm Frequency ↓ Storm-related Rainfall ↑ Storm-related Rainfall ↑ http://geology.com/hurricanes/named-hurricane-fran.gif

14. www.broward.org/climatechange Tidal Flooding 9/18/09 – Las Olas (8 inches above average high tide)

15. www.broward.org/climatechange Tidal Flooding 9/18/09 – Las Olas (8 inches above average high tide)

16. www.broward.org/climatechange Tidal Flooding 9/18/09 – Riverwalk (8 inches above average high tide)

17. www.broward.org/climatechange

19. Drainage in the Face of Sea Level Rise

20. www.broward.org/climatechange Stormwater Saltwater Flood Control Structure Drainage Challenge with Sea Level Rise Drainage Capacity CURRENT CONDITION Stormwater Saltwater Flood Control Structure Drainage Capacity FUTURE CONDITION

21. www.broward.org/climatechange Defining Adaptation Preparing for climate change impacts that are inevitable.

23. www.broward.org/climatechange Broward County Climate Change Action Plan WATER RESOURCES Goal 1 Ensure protection of water resources while minimizing flood damage Action 1.1 Include climate change in updates of Lower East Coast Plan Action 1.2 Conduct studies for large-scale Advanced Water and Wastewater Treatment Plants Action 1.3Monitor and protect wellfields Action 1.4Re-evaluate reuse due to sea level rise

24. www.broward.org/climatechange Climate Change Action Plan Water Resources

25. www.broward.org/climatechange Broward County Climate Change Action Plan WATER RESOURCES Goal 1 (cont) Action 1.5 Development, by utilities, of adaptive management strategies for water resources Action 1.6Reduce utility carbon footprint Action 1.7Provide resources to implement water conservation Action 1.8Develop alternative water supply strategies

26. www.broward.org/climatechange Water Resources

27. www.broward.org/climatechange Broward County Climate Change Action Plan WATER RESOURCES Goal 1 (cont) Action 1.9 Protect Wastewater Treatment System from Infiltration and Inflow Action 1.10 Convene a regional workshop to enhance resilience of water resources to Climate Change Action 1.11 Require construction to include a percentage of pervious areas to enhance water resources

28. www.broward.org/climatechange Broward County Climate Change Action Plan MODELING, MONITORING, AND MAPPING Goal 8 Ensure the use of current modeling information in developing adaptation and mitigation strategies Goal 9 Develop and maintain monitoring for environmental benchmarks that indicate impacts of climate change Goal 10 Ensure the use of current mapping information in developing adaptation and mitigation strategies

29. www.broward.org/climatechange Broward County Climate Change Action Plan MODELING, MONITORING, AND MAPPING Goal 10 Ensure the use of current mapping information in developing adaptation and mitigation strategies Action 10.1Improve inundation mapping capabilities Action 10.2Develop new 100 year storm maps Action 10.3 Incorporate sea level rise/storm surge impacts into maps of hazard areas Action 10.4 Encourage FEMA to consider Sea Level Rise in flood map updates

30. www.broward.org/climatechange 1 ft rise At Risk in Broward: 1934 households 182 business Property worth ~ $469M Critical Infrastructure: Library/park/natural area 4 major roads including: Hollywood Blvd Ocean Dr / A1A Dania Beach Blvd Sheridan St

31. www.broward.org/climatechange a)Future water supply source planning b)Future water supply treatment planning c)Contingency planning for extreme drought and rainfall d)Coordinated retrofit of drainage infrastructure b)Investigation into reducing utility carbon footprint Municipal Considerations