Tracy Mercer, MBA Public Utilities Director April 13, 2015 Transforming Local Government Conference - Phoenix, AZ

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Are we running out of water?  Headlines: Drought in Texas and China Nevada’s Lake Mead in danger of going dry Colorado River or Rio Grande lowest levels in 50 years 4

The Strategy: Integrated Water Management Conserve: Water Supplies Conserve: Water Supplies Preserve: Water Resources Preserve: Water Resources Protect: Coastal Environment Protect: Coastal Environment Produce: More Water Locally Produce: More Water Locally Manage: Cost of Water Manage: Cost of Water  5

Demand for affordable, safe drinking water Demand for affordable, safe drinking water Coastal community environment Coastal community environment Withdrawal restrictions Withdrawal restrictions Emerging regulatory constraints Emerging regulatory constraints Cost of purchasing water Cost of purchasing water  6 Clearwater’s Challenges

City County  7

 8 Choosing Our Future – Groundwater Replenishment

Model Particle Tracks Expected Migration of 10 Years from Injection  9

GWR Program designed GWR Program designed Launched as small pilot plant Launched as small pilot plant Operated pilot plant for 12 months Operated pilot plant for 12 months 25,000 Performance tests 25,000 Performance tests Continued Public Outreach Continued Public Outreach TESTING: Pilot Plant  10

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UFAOP REMOVES Suspended Solids Bacteria Cryptosporidium Giardia REMOVES Organics Pharmaceuticals PPCPs Inorganics Heavy Metals Viruses REMOVES Low-Molecular- Weight Organics NDMA Purify Used Water to Near Distilled Quality Reclaimed Water Purified Water To Post Treatment  12

MEMBRANE CONTACTORS CHEMICAL ADDITION REMOVES Dissolved Oxygen ADDS Carbon Dioxide ADDS Calcium Alkalinity Reducing Agent Ferrous Iron Post Treatment Steps Water Purification Process To Recharge Wells Adjust pH Adjust LSI Reduce ORP Arsenic Mobilization Reduce pH  13

ParameterPurified Water Native Groundwater Total Dissolved Solids, mg/L27620 Calcium, mg/L1.180 Magnesium, mg/L0.217 Sodium, mg/L Iron, mg Fe ++ /L< Arsenic, µg/L<1.0 Alkalinity, mg CaCO 3 /L Chloride, mg/L Sulfate, mg/L0.816 pH Dissolved Oxygen, mg/L> ORP, mv+-307 Water Quality Comparison  14

Public Outreach Program City Council, Governing Board & other local utilities Environmental Advisory Board / Council Utility Customer Communications HOA Meetings, Community Groups & Service Clubs Professional Society Meetings & Conferences USF Graduate Seminar Pilot Plant Tours  15

Potable Reuse: Florida’s Future Water Source Water scarcity and regulations drive industry CHANGE! Water scarcity and regulations drive industry CHANGE! Clearwater - leader in reuse, now indirect potable Clearwater - leader in reuse, now indirect potable Happens daily on major rivers systems Happens daily on major rivers systems Proven economical, safe, secure, sustainable Proven economical, safe, secure, sustainable  16

Advantages of Groundwater Replenishment (GWR) Allows water supply to increase with population Allows water supply to increase with population Stable, constant source in face of drought Stable, constant source in face of drought Prevents overdrawing resources Prevents overdrawing resources Prevents deterioration of water quality and ecosystem degridation Prevents deterioration of water quality and ecosystem degridation Proven ultra-pure water Proven ultra-pure water  17

Clearwater Outcomes Focus - Quality, not the History Focus - Quality, not the History Consistent, sustainable water supply Consistent, sustainable water supply Purified and proven drinkable Purified and proven drinkable Cost - within acceptable ranges Cost - within acceptable ranges Approached for direct-to-pipe plant Approached for direct-to-pipe plant Public Outreach - continuous Public Outreach - continuous  18

STATUS QUO “do nothing approach” Millions $60 $50 $40 $30 $20 $10 $ Securing Our Future – Managing Rising Cost of Water  19

OPTION 2 “build-out of current CIP” Millions $60 $50 $40 $30 $20 $10 $ Securing Our Future – Managing Rising Cost of Water  20

Purified wastewater good for beer brewing, utility says… purified-wastewater-good-for-beer-brewing-utility-says  21

 22 Imagine there’s no water I wonder if you can,----

 30 How urine will get us to Mars  23

 30 Astronaut Chris Hadfield  24

 25 Bill Gates Raises A Glass To (And Of) Water Made From P_ _p "The water tasted as good as any I've had out of a bottle." Bill Gates wrote on his blog. "And having studied the engineering behind it, I would happily drink it every day. It's that safe." wrote Bill Gates and Jimmy Drink P_ _p Water Bill Gates drinks water from the Omniprocessor (turns sewage into clean drinking water)

 29 A Toast to Your Health!  26

 27 Drink all the water you can hold. Wash your face to your feet. Leave the bottle full for others. Thank you kindly, Desert Pete. Desert Pete – Kingston Trio

The Future of Our Water… is in Your Hands.  28

Tracy Mercer, MBA Public Utilities Director April 2015