Ed Torres, MS, PE, LEED AP Director of Public Works & Utilities. Altamonte Springs -FDOT Integrated Reuse & Stormwater Treatment

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1 Ed Torres, MS, PE, LEED AP Director of Public Works & Utilities Altamonte Springs -FDOT Integrated Reuse & Stormwater Treatment

2 Widening of 21 miles Toll lanes in the center 15 interchanges $2.3B Location & I-4 Ultimate

3 Environmental Background Wekiva Parkway Protection Act required expedited TMDLs for the Wekiva River Study Area Wekiva River Designated Outstanding Florida Water (OFW) and National Wild & Scenic River Numeric Nutrient Criteria (NNC) CFWI Water Supply Issues & Minimum Flows and Levels Rigorous River, Springs, and Aquifer Protection Draft BMAP Wekiva River, Rock Springs Run, and LWR for nitrate-nitrogen and phosphorus

4 Wekiva River Study Area

5 Central Florida Water Initiative Insert Map Here Altamonte Springs

6 Utilities Ops RWRF wastewater treatment for Insert entire Map City Here and portions of Maitland, Winter Park, and Eatonville Reuse for 100% of City Wet weather/low irrigation demand discharge to Little Wekiva River Current Stormwater & Utilities Operations Stormwater Ops Cranes Roost RSF for Central Business District in landlocked basin Flood control provided via pumps discharging to Little Wekiva River Strictly regulated pump on/off schedule

7 Cranes Roost: More than a Regional Stormwater Facility (RSF)

8 Pump Station Cranes Roost CBD Stormwater Facility Cranes Roost

9 Altamonte Springs RWRF

10 Altamonte Springs RWRF Regional Water Reclamation Facility Permitted for 12.5 MGD Regional Water Reclamation Facility

11 Conventional Solutions Water Reclamation Facility Design, permit and construct massive storage ponds and/or storage tanks (never enough) Next level of treatment (i.e. treated to drinking water standards) Stormwater Keep continually restricted pumping from Cranes Roost Design, permit and construct unattractive de/retention ponds Inefficient nutrient removal capabilities

12 Challenges to Conventional Solution Cannot continue discharges to the LWR indefinitely Most effective way to reduce nutrients in the LWR Continue tradition of being in the forefront protecting our environment Expense of other treatment options

13 I-4 Ultimate Initial Plan Stormwater attenuation and treatment - Large stormwater retention pond Flood Compensating Storage- Expand Cranes Roost under I-4 and build bridges over the expanded stormwater facility

14 Unconventional Solution Doing Business Differently

15 Utility RWRF wet weather/low irrigation demand and any excess reclaimed water piped to City of Apopka instead of discharged to river (5.8 miles) Apopka use for reclaimed, store, or recharge Stormwater Continuous simulation The Project surface/groundwater Additional attenuation volume in Cranes Roost by lowering pumps on elevation Stormwater is treated to reclaimed water stds instead of discharged to river

16 Altamonte Springs & Apopka Utility Service Areas

17 Stormwater Discharge Reduction Stormwater discharge to river reduced by 50%

18 Project Goals Water Quality: Stormwater source estimated nutrient reductions: 643 lbs/yr of TP and 3,259 lbs/yr of TN Excess wet-weather highly treated reclaimed water source estimated nutrient reductions: 27,400 lbs/yr of TP and 59,400 lbs/yr of TN Water Supply: 1.5 MGD of Alternate Water Supply from Cranes Roost 3.0 MGD of Alternate Water Supply from RWRF

19 Full Redundancy Pumps: HP & HP Generator Connections for portable generators and pumps Stormwater Pump Station

20 WTP#4 Little Wekiva River Water Treatment Plant #4/Reuse Augmentation Facility

21 WTP#4/Reuse Augmentation Facility

22 Stormwater Forcemain

23 Pipeline to Apopka

24 Schedule & Status Schedule: Design: March, 2013 March, 2014 Construction: June, 2014 September, 2015 Current Status: Continuous Simulation Modeling Completed Cranes Roost Pumps Improvements Design Completed, Bid $2,482,000, 40% const Reuse Augmentation Facility (WTP#4) - Design Completed, Bid $3,364,500, 70% const Pipeline to Apopka Design Completed, Bid $5,594,828, 60% construction Easement Acquisition Completed, $127,400 Total Cost (including design & easements) = $12,934,468 (3.5% off from estimate)

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27 The Partnership FDOT $4.5M SJRWMD $3.5M FDEP $1.5M Altamonte Springs $3M + O&M Apopka (storage construction & retreatment) The Right People in the Right Place at the Right Time

28 Implementation Stormwater Analysis & Modification Stormwater Pump Station & Forcemain Stormwater Modeling Reuse Augmentation Facility Construction Wharton-Smith, Inc. Layne Heavy Civil, Inc. Pipeline to Apopka Analysis, Design, Permitting and Construction

29 Major AWS alleviates unmet water supply demands in Apopka s service area Reduces groundwater pumping needs in the Apopka and Altamonte springshed, which directly correlates with spring flows and MFLs Significant overall nutrient loading reduction in the LWR from non-point and pointsources Nutrient reduction in the LWR will have ancillary water quality benefits in the springs Addresses NNC and TMDLs as well as the regional Wekiva Parkway Protection Act goals for the area Addresses stormwater treatment needs for Interstate 4 in Altamonte Springs and will serve as an example for future Besides environmental benefits approximately $15M savings to the FDOT Benefits of Doing Business Differently

30 There is no greater satisfaction than realizing an accomplishment when the odds are stacked against you and the difficulty of implementation surpasses the greatness of an idea ET 12/2013 Thank you!