TUCSON WATER SANTA CRUZ RIVER HERITAGE PROJECT PAG 208 CONSISTENCY REVIEW

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1 vember 27, 2017 Pima Association of Governments 1 E. Broadway Blvd Tucson, AZ Attention: Mead Mier, Sustainability Coordinator SUBJECT: TUCSON WATER RIVER HERITAGE PROJECT PAG 208 CONSISTENCY REVIEW Dear Ms. Mier, The Santa Cruz Heritage Project (the Heritage Project) intends to reintroduce a perennial source of water to the Santa Cruz in central Tucson through a reclaimed water recharge project. The Heritage Project would provide the dual benefit of restoring riparian habitat in the downtown area while also recharging the effluent for groundwater storage credits. The source of the reclaimed water for the Heritage Project would the same as the current effluent discharges from Pima County s Agua Nueva Water Reclamation Facility (ANWRF), but with the benefit of additional treatment at Tucson Water Reclaimed Water Treatment Facility (RWTP) that produces Class A reclaimed water. The Heritage Project will be constructed in two phases, with Phase 1 designed for 4,000 acrefeet/year (AFY) discharge, and Phase 2 a future expansion to 7,000 AFY discharge. The Phase 1 outfall will be located north of Silverlake Road at 26 th Street on the east side of the Santa Cruz River. The Phase 2 outfall will be located at Cushing Street, with an exact outfall location still to be determined. Tucson Water is designing the Phase 1 outfall station to provide dechlorination and water quality monitoring stations. The outfall facility incorporates fail safe controls and backup power to prevent discharges from occurring in the unexpected event there is a water quality exceedence. Additionally, the outfall will be designed to operate during dry periods when the Santa Cruz River is not flowing. Tucson Water is in the process of preparing Aquifer Protection Permit (APP), Arizona Pollution Discharge Elimination System (AZPDES), and Underground Storage Facility (USF) permit applications for the Heritage Project to demonstrate groundwater and surface water environmental compliance. It is anticipated that these permit applications will be submitted in January, The Heritage Project follows the key guiding principles of the PAG 208 Plan including riparian restoration and reclaimed water use. Additionally, Tucson Water has engaged regional stakeholders throughout the development of the Heritage Project concept. These stakeholders include Tucson Water s Citizens Water Advisory Committee, Tucson City Council, Pima County Regional Flood Control District, Rio Nuevo Multipurpose Facilities District, Tucson Audubon Society, University of Arizona s Water Resources Research Center, and the Tucson Regional Water Council. hdrinc.com

2 Please find attached the completed PAG 208 Consistency Review Form with Regional and Site maps. Please contact Ty Morton at or if you have any questions regarding the Heritage Project or these submitted documents. Sincerely, Ty Morton, P.E. Senior Project Manager HDR

3 208 CONSISTENCY REVIEW Douglas A. Ducey, Governor Misael Cabrera, Director APPLICANT: PLEASE COMPLETE SECTIONS 1- Application Submittal: submit application to the 208 Program. application to call (602) for assistance, or go to for further information. Along with this completed application, the applicant MUST submit a map with the information noted in item 4 below. Failure to include the map will result in the application being considered incomplete. Part A. Is your application for any of the following: Yes A new domestic (publicly or privately owned) Wastewater Treatment Plant (WWTP) An existing domestic (publicly owned or privately owned) WWTP that is adding an AZPDES discharge outfall or changing the location of a previously approved AZPDES discharge outfall More than a % increase in permitted design flow Expansion of the service area Change of ownership of a domestic (publicly or privately owned) WWTP (Pima County only) Approval of Sanitary Facilities utilizing on-site wastewater treatment (APP only) If you answered yes to any question above, please complete the remainder of this form. Part B. 1. Facility Name Facility Information Explanation (Provide a brief description) Name of Owner Tucson Water Department Name of Applicant Dee Korich, Chief Hydrologist Contact Phone Number Contact Address Dee.korich@tucsonaz.gov a. AZPDES (existing or new) New b. APP (existing or new) New 2. Permit Type c. If AZPDES, give name of surface water receiving the discharge 3. Facility Location County Latitude/Longitude (for AZPDES, lat/long of the outfall) Current surface water discharged to: Future surface water discharged to: Santa Cruz River Pima , February 2015 Page 1 of 2

4 4. Attach a map(s) that includes at a minimum 5. Describe the application action(s) checked in Part A. above. 6. Facility Information a. Facility/site location b. Discharge location(s) c. Other disposal options d. Service area (for expansion include current and future area) a. New WWTP facility b. New outfall or change in outfall location c. Capacity expansion (million gallons per day (MGD)) d. Expansion of service area e. Change in WWTP ownership (Pima County only) f. Approval of Sanitary Facilities using on-site wastewater treatment systems (APP only) Reclaimed effluent will be discharged at an existing Tucson Water outfall located north of Silverlake Road on east side of Santa Cruz River. The existing outfall was constructed as a reclaimed water distribution system dewatering point, and will be modified to operate as an AZPDES outfall. a. Treatment process: Current Change; Future Change b. Design capacity (annual average daily flow): Current Change ; Future Change c. Effluent disposal method: Current:4000 AFY; Future7000 AFY a. Municipal/public utility Name: Tucson Water Department 9. What type of entity will operate the facility? b. Private utility c. Semi-public (sanitary district, improvement district) d. Other (explain) Name: Name: Explain type: Name: February 2015 Page 2 of 2

5 Cheem od Wepeg Ka'akwulik Red Rock Reservoir Site ELOY R11E RE R9E R13E R12E R14E R16E R15E T11S T12S CATALINA MOUNTAINS t S an ru z ac er Riv T13S R ill i to Riv 77 er x 86 Sant a Cru x z Rive r T14S Heritage USF Location R9E AVRA VALLEY RE UPPER T15S 19 T16S T17S T18S SANTA CRUZ AMA T19S Data Source: Pima County Topo Aerial Source: ArcGIS Online TRS ESRI Online World Topo Map Groundwater Sub-basins Township/Range ± 0 Legend AMA Model Boundary (Active Basin Areas) 7.5 Miles Bedrock Tucson AMA HERITAGE PROJECT REGIONAL MAP Figure 1

6 Section 11 Section Section 12 Approximate Tucson Water Facility Boundary Heritage USF Phase 2 Location Section 14 Section 15 Section 13 S a n t a C r u z R iv e r UPPER Tucson Water Facility Boundary Heritage USF Phase 1 Location Section 23 Section 22 Section 24 Section 26 Section 27 Aerial Source: ArcGIS Online TRS ESRI Online World Topo Map ± 0 1,000 Section 25 Legend Feet 2,000 Approximate Heritage USF Phase 2 Location Heritage USF Phase 1 Location Section Lines HERITAGE PROJECT LOCAL SITE MAP Figure 2