HomeMy WebLinkAboutCouncil Presentation 3-12-2019 Water Critical InfrastructureMarch 12, 2019Water and Water Reclamation:Critical Infrastructure
Critical Projects•Picture Rocks and Airline/Lambert Water Treatment Campuses•Northwest Recharge, Recovery and Delivery System (NWRRDS)•Twin Peaks-Continental Reserve Interconnect•W+ to X-Zone Booster Station and PRV•Future Water and Sewer Crossing near Tangerine/I-10
Airline/Lambert and Picture Rocks Water Treatment Campuses•$15M loan approved by WIFA in December, closed on loan in January•Carollo Engineers started design in January•Bench scale media testing in progress•CMAR SOQs received March 7 •Website being updated with sample results and monthly progress reports
Airline/Lambert and Picture Rocks Water Treatment CampusesSep 2018Oct 2018Nov 2018Dec 2018Jan 2019Feb 2019Mar 2019Apr 2019May 2019Jun 2019Jul 2019Aug 2019Sep 2019Oct 2019Nov 2019Dec 2019Jan 2020Feb 2020Mar 2020Apr 2020May 2020Jun 2020DesignConstructionGMP 1Formal BorrowingProcurement/ContractsGMP 2Pre-Construction
UV-H2O2+ GACSimplified Process Flow Schematic5
Picture Rocks Water Treatment Layout6
Questions?Airline/Lambert Water Treatment Layout7
Ion Exchange + UV-H2O2 + GAC (quench)Capital InvestmentPicture Rocks / Continental Reserve$5.7MAirline-Lambert / Saguaro Bloom$4.3MPrice escalation, future capacity sizing, contingency, etc.$2.0-5.0MTotal $12.0-15.0M8Airline/Lambert and Picture Rocks Water Treatment Campuses
Northwest Recharge, Recovery and Delivery System (NWRRDS)•2,400 AF per year (2.2 MGD) of recovered CAP water directly in to the system (wet water) for Marana•Expanded utilization of existing wells/system •Creates system redundancy for current customers; provides water for growth areas of Hartman Vistas and Picture Rocks Water Systems, and the Twin Peaks corridor.Benefits•Reduce groundwater pumping in eastern Marana•Cost sharing with Metro Water and Town of Oro Valley•Provides access to Arizona Water Bank water in times of CAP shortage
Northwest Recharge, Recovery and Delivery System (NWRRDS)
Northwest Recharge, Recovery and Delivery System (NWRRDS)
Marana Water Systems12Airline/LambertPicture RocksHartman VistasTangerine Business ParkMaranaPalo VerdeAirport
Proposed PipelineContinental Reserve InterconnectDESIGN IN PROGRESS~6,200 LF 24” Pipe~$1.7MContinental Reserve Reservoir and Booster Station
W+ to X Zone Booster and PRV StationDESIGN IN PROGRESS~$935,00 total budget Existing WaterW+ Zone X Zone
Future Tangerine/I-10 CrossingExisting SewerExisting WaterProposed Water