Cape Coral Integration of Irrigation Source Waters

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1 Cape Coral Integration of Irrigation Source Waters

2 Cape Coral Southwest Florida Coastal City 3rd Largest FL City in Land Area 11th Largest FL City in Population Peninsula Surrounded by Saltwater 2010 Population of 154, Population of 161,000 (Source BEBR) Build-out Population of 400,000

3 Drivers for Early Adoption of Reuse System Limited Availability of Conventional Water Sources No Fresh Floridan Aquifer No Biscayne Aquifer Available sources low yield Overtaxed water resources Threat of saltwater intrusion Utility service to small part of city WTP reaching capacity Deteriorating SW Quality Threatened fines for WW disposal Threatened building moratorium Continued rapid growth

4 Aquifer Water Level Decline & Threat of Saltwater Intrusion

5 Drivers for Integration of Sources Recognition of limited water resource availability Early focus on total water management Consideration of all water sources and all water demands Elimination of wastewater surface water discharges Up to 50% municipal demand used for irrigation of lawns 400 miles of canals seen as a resource (but not to drink) Pre-platted residential community Minimal industry and agriculture base Water independence Keep utility rates affordable Be good stewards with environment Cheapest form of new water supply is CONSERVATION!

6 Integration Program Components Separation of inside and outside water uses RO treated brackish groundwater reserved for potable uses Reuse of treated wastewater for residential/commercial irrigation Stormwater harvesting of canals to supplement reuse 3 pipes to every house W / WW / IQ Demand management - 2 days per week watering restriction 24/7 year-round pressurized reclaimed water system Increase storage and improve dry season system reliability

7 Lessons Learned Reuse / IQ water is a valuable commodity Low fixed fee encourages waste and inefficiency City went from low flat fee to considering IQ metering Reuse needs supplement, storage, and/or back up disposal Piping and storage may not meet typical peak demand windows Use of reclaimed water for fire protection is not recommended

8 Stormwater is Primary Irrigation Supply Canal system improvements were needed to supplement reuse Raised fixed crest weirs and added controls Inflatable weirs provide added storage and flood control Pumping interconnects conveys water from other basins Over 1 billion gallons of storage added Excess stormwater discharges to estuarine environment reduced

9 Canal Pump Stations Cape Coral has 5 Canal Pump Stations w/ 94.6 million gallons per day (MGD) pumping capacity Cape Coral is building 2 additional Canal Pump Stations North of Pine Island Road for the North 1 & 2 UEP Projects. Will add 44 MGD We constructed stations to look like residential homes as they are situated in residential neighborhoods.

10 The Results Continued recognition-2016 David W. York Reuse Project Award 100% Alternative Water Supply 100% reuse of municipal wastewater Effective and robust stormwater harvesting program Delivery of >40 MGD Irrigation water during dry season Major reductions in stormwater discharges to estuaries Positive FDEP determination-ability to blend reuse w/canal water

11 The Results - Continued

12 The Results - Continued Virtual elimination of wastewater discharges to estuaries Recovery of Groundwater Levels Major reduction in per capital use of expensive potable system Extended useful life of WTP by 20 years (capital deferment) Exemption from drought irrigation restrictions

13 Future Plans Partner with neighboring utilties for reuse interconnects Integrated Water Resources Management Program ASR and offline canal Reservoirs for reclaimed and/or canal water Remove fire protection systems from irrigation system Increase conservation measures and public education. Develop and adopt best management practices with regional stakeholders Continued Utilities Extension Program (UEP) will add between 8,000 to 9,000 additional reuse customers by 2019

14 QUESTIONS/COMMENTS?