wastewater effluent & reclaimed water: innovative strategies now and into the future arizona...
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Wastewater Effluent & Reclaimed Water:Innovative Strategies Now
and into the Future
Arizona League of Cities & TownsAugust 21, 2014Phoenix, Arizona
Kathleen M. Chavez, P.E.Water Policy Manager
Pima County
Southern Arizona Water Users Association
Goals & Objectives
A Proactive Forum to Protect the Quantity and
Quality of Water Resources Within and Available to
Southern Arizona
15 Members
Avra WaterBKW FarmsCommunity Water of Green ValleyFICOFlowing Wells IDKai FarmsMarana
Green Valley DWIDMetro DWIDOro ValleyPima CountyRed RockSahuaritaSahuarita WaterTucson Water
Pima County
2010 Population 980,000
Unincorporated Population 353,000
Five Incorporated Jurisdictions
85% Land is Federal, State or Native American
Nine Wastewater Reclamation Facilities
3,400 miles of Sewer
Reclaimed Water Production2012: 66,900 acre-feet*
61,393 AF
3,698 AF
896 AF 511 AF 295 AF 100 AF
Pima County Metropolitan 92%
Pima County Non-Metropolitan 6%
Town of Sahuarita 1%
Saddlebrooke Ranch 1%
Town of Marana <1%
U of A Tech Park <1%
Reclaimed Water AllocationsMetropolitan Facilities
2012 Allocations• SAWRSA 46%• City of Tucson 41%• Pima County 5%• Metro Water 4%• Oro Valley 3%• Flowing Wells 1%• Spanish Trail < 1%
• Conservation Effluent Pool* 0%
What Does Everyone Do With Their Water?Allocation(AF/yr)
Direct Reuse
Off Channel Recharge
In Channel Recharge
Long-Term Storage
Outflow at Trico Road
City of Tucson 25,092 √ √ √ √ √
Bureau ofReclamation 28,200 √ √ √
Pima CountyMetro 3,319 √ √ √ √
Pima CountyNon-Metro 3,698 √ √ √
Metro Water 2,172 √ √ √
Allocation(af/yr)
Direct Reuse
Off Channel Recharge
In Channel Recharge
Long-Term Storage
Outflow at Trico Road
Oro Valley 1,929 √
Sahuarita 896 √ √
Flowing Wells 639 √ √
Saddle-brooke 511 √ √
Marana 300 √
Spanish Trail 43 √ √
Water Quality Upgrades
Plant Interconnect
Agua Nueva WRF 32 mgd
Tres Rios WRF 50 mgd
Class A+ Water
Regional Optimization Management Plan
Opportunities
Environmental Restoration
Reclaimed Water Strategies
Production
Allotment
Utilization
Long-Term Storage
Water Quality
Opportunities
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