Utilities Department Wekiwa Springs Septic Tank Retrofit Project

Utilities Department Wekiwa Springs Septic Tank Retrofit – Project Update March 10, 2015 1

Presentation Outline § Background § Wekiwa Springs Project Update § Project Next Steps § Additional Projects § Questions? 2

Presentation Outline § Background § Wekiwa Springs Project Update § Project Next Steps § Additional Projects § Questions? 3

Background § BCC Workshop – 9/23/14 – Presented existing retrofit policy § BCC Public Hearing – 10/21/14 – Code amendment authorizing Utilities to fund up to 25% of a septic tank or potable well retrofit project when other programs cover at least 75% of all project costs – Approved offering 25% funding to homeowners for the Wekiwa Springs Septic Tank Retrofit project • Subject to 75% grant funding from SJRWMD and FDEP 4

Background § Sewer retrofit of up to 367 lots – State contribution of approximately $5. 0 million (75% of total costs) – Evaluating alternatives and updating cost estimates • Locating pump stations • Low pressure sewer option 5

Presentation Outline § Background § Wekiwa Springs Project Update § Project Next Steps § Additional Projects § Questions? 6

Wekiwa Springs Project Update § Alternatives Study Completed – Low pressure sewer alternative recommended – Significantly less disruptive to community § Total project cost of up to $9. 0 million – Includes 25% contingency – Design entire system – Construct in phases if total costs exceed $6. 65 million § SJRWMD and FDEP support recommendation 7

Presentation Outline § Background § Wekiwa Springs Project Update § Project Next Steps § Additional Projects § Questions? 8

Project Next Steps § Apply for additional grant funding – March 13, 2015 deadline § Community Meeting – Present study recommendations – Discuss low pressure sewer system components – Present voting ballot – 67% YES required § Design project § Construction 18 months 18 to 24 months 9

Presentation Outline § Background § Wekiwa Springs Project Update § Project Next Steps § Additional Projects § Questions? 10

Additional Projects Wekiwa Springs Meeting § Commissioner Nelson called stakeholders meeting in January 2015.

Additional Projects § Stakeholders collaborated on local and regional projects that will improve water quality for Wekiwa Springs § Existing and New Technologies explored: Existing Street sweeping Curb inlet baskets Nutrient baffle boxes New Modular wetlands Bold & Gold™ filter media All regional projects dependent upon cooperative funding.

Additional Projects Emerging technology developed by UCF § Proprietary mix of sand, sawdust, and recycled tire crumb § Septic drainfield application is pending FDOH approval § 2 ongoing stormwater pilot projects in advanced phases § More pilot projects for septic and other stormwater applications needed

Additional Projects Bay Lake Retrofit (EPD) § Modular wetland with Bold & Gold § Treats street runoff § Monitoring phase Estates at Lake Clarice (Stormwater Management) § Out flow filter with Bold & Gold § Treats pond overflow to Lake Roper § Construction planned August 2015

Additional Projects Stormwater Pond Retrofits § Projects at existing ponds § Easements may be needed for construction & monitoring § Work with SJRWMD Septic Drainfield Retrofits § Need private property volunteers § Access is required for continuous monitoring & study § Work with FDOH

Additional Projects Expand Street Sweeping Program § Prevention at the source § Increase frequency, expand coverage § Standalone solution or combine with other Best Management Practices (BMPs) § Measurable Results

Additional Projects § Prioritize projects § Negotiate collaborative funding from stakeholders § Request funding from State Legislature (FY 2016)

Presentation Outline § Background § Wekiwa Springs Project Update § Project Next Steps § Additional Projects § Questions? 18

Questions? 19

Utilities Department Wekiwa Springs Septic Tank Retrofit – Project Update March 10, 2015 20

Modular Wetlands Nutrient Removal from Surface Water Using Chambers, Filters, and Biomass Uptake § Sequesters nutrient loads from stormwater runoff § Current EPD pilot on east shore of Bay Lake