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HomeMy WebLinkAboutCouncil Presentation 11/22/2022 - Water Resources Related Subjects UpdateCouncil Special Meeting: Water Resources Related Subjects Update Asia Philbin –Water Resources Administrator Jing Luo, PhD, PE –Water Department Nov. 22, 2022 WATER FOR TODAY, WATER FOR TOMORROW Outline •Hydropower -Update •Water Resource Acquisition -Update •DAWS Modification -Update •Drought Preparedness Plan Revision -Update &Discussion •Water Conservation Program Update –Update & Discussion 2 3 Hydropower Update Hydropower 4 WAPA AEPCO TRICO TOWN Challenges •Underutilization –only uses ~50% of the 1 MW •High Cost of Scheduling Services -~$5,000 per Month to AEPCO with 3% Annual Escalation •Past Scheduling Fee Deferment –Owed to AEPCO $216K •Accumulated loss of ~$129K 5 Resolved by 6 •In June 2022, AEPCO waived the deferment of $216K entirely. •Starting from September, 2022, AEPCO/TRICO stopped charging the $5,000 service fee. •Accumulated saving of ~$87,000 •Moving forward, we will pay TRICO rate for the power we use •The 1MW hydropower is still under TOM’s contract until 2028 7 Water Resource Acquisition Update Colorado River Water Shortage 2023 Forecast under IG and LBDCP: 8 •1050’<= Mead Elevation > 1045’ •Tier 2a shortage volume = 592 KAF •400 KAF per IG •192 KAF per LBDCP •Pre-mitigation pool level impacts: •100% reduction to Ag •100% reduction to NIA •No reduction to Indian and M&I Task Force Topics Schedule 9 Partici- pants Date Topics (Planned) ALL Wednesday 07/20/2022 Kickoff. Establish role and mission. Discuss stakeholder perspectives. Identify objectives for pursuing alternative resources. CORE Wednesday 08/17/2022 Continue developing understanding of acquisition strategy goals and needs. Discuss potential candidate water supply types. CORE Wednesday 09/21/2022 Review and provide comments on summary memo documenting Taskforce objectives. Discuss Water Supply Needs Assessment. ALL Wednesday 10/19/2022 Review PPT report of preliminary needs assessment summary and recommendations. CORE Wednesday 11/16/2022 Review and discuss draft water asset inventory.Review and discuss draft valuation and cost analysis. CORE Wednesday 12/14/2022 Review and discuss draft water asset prioritization. CORE Wednesday 01/18/2023 Review and discuss draft acquisition budget and financing approaches. ALL Wednesday 02/15/2023 Review and discuss draft acquisition strategy recommendations. Council March 2023 Present the findings to Council Council Discussion Target: MARCH 2023 CORE TEAM: Consultants, MW Staff, Legal ALL: CORE TEAM + Leadership staff + Council reps Combined to be 11/30/2022 Other On-going Water Resources Projects •Minimize the loss of effluent in the Santa Cruz River beyond the Trico Rd. gage •Getting proposal from Dibble Engineering to evaluate the feasibility of effluent diversion at El Rio for other regional partners •Coordinating with CMID/Cairo Engineering on potentially creation of LTSC •Coordinating with Tucson, BOR, and others •Explore Opportunity for Direct Potable Reuse (DPR) •Getting proposal from Carollo Engineers for a feasibility study 10 11 DAWS Modification Update DAWS Modification Process Update •DAWS Modification is on Schedule •May 26th, 2022: ADWR recognizes submitted application •October 17, 2022: ADWR Issued the 1st Notice of Deficiency •November 8, 2022: Deficiency Review Meeting with ADWR •December 16, 2022 (or prior): Marana response to Deficiency •Still on track to complete by May 2023 •Key Response Items •System Connectivity •Demand/Population Projection •Locations of Tucson Water Pumping 12 13 Historic Groundwater Level Trends near Marana Service Area Marana Water Resources Moving Forward: 14 •Continue on the Water Resources Task Force and Projects •Continue on DAWS Modification Process with ADWR •Optimize the Use of Supplies •Continue to store and recover CAP and Effluent (Ongoing) •Continue to generate LTSC and groundwater credits (Ongoing) •Increased coordination with AWBA, CAP, CAGRD for water order (Ongoing) •Execute Arizona Water Banking Authority(AWBA) agreement for self recovery (Done) •Conduct a New Rate Study in FY24 •Brief Council and get Council input: •Prepare final drought preparedness plan for Council adoption •Water conservation fee proposal 15 Drought Preparedness Plan Update & Discussion Best Practice & Regulatory Requirement •Arizona Drought Preparedness Plan (2004, 2007present) •ADWR responsible, with reliance on •Drought Monitoring Technical Committee (“MTC”) •Governor’s Drought Interagency Coordinating Group (“ICG”) •Local Drought Impact Groups (“LDIGs”) •Others (e.g. municipal water providers) •Meant to address: •Conditions of Precipitation, Streamflow, Forest Health and Drought Declarations or Disaster Designations •Events with impacts exacerbated by drought –e.g. wildfires, flooding •State, community, individual actions •Set requirements for Community Water Systems to develop Drought Preparedness Plans (“DPP”) 16 Features of Town DPP 1.Council Adoption (Resolution No. 2007-177) 2.Stages of advancing drought (Four) 3.Indicators for each stage (Four) 4.Triggered indicators determine stage (Two of Four) 5.Consistency with other providers (WaterCASA ) 6.Voluntary compulsory (Stage 1,2 Stage 3,4) 7.Tied to Code (14-7-4 Emergency Water Cons.) 17 8.Drought management team 9.Process for declarations & communications Remains the same Revised New    Drought 2000-2022 18 Comparison of Indicators, Triggers, Stage Assessment Stage 2007 (any two of four local indicators) 2022 (either of two indicators –one local, one regional) Stage One (Low) •Arizona Drought Monitor Precip. 70-90% •Arizona Drought Monitor = D-2 •Groundwater Level Decline 1.0’ –2.4’ •Over 45 consecutive days of 100 degrees •Groundwater Level Decline of 1.0’ -2.0’ •Lake Mead Elevation predicted for January: 1,090 -1,075 feet (Tier 1) Stage Two (Moderate) •Arizona Drought Monitor Precip. 50-70% •Arizona Drought Monitor = D-3 •Groundwater Level Decline 2.5’ –3.9’ •Over 60 consecutive days of 100 degrees •Groundwater Level Decline of >2.0’ -3.0’ •Lake Mead Elevation predicted for January: 1,075 -1,045 feet (Tier 2a) Stage Three (High) •Arizona Drought Monitor Precip. 25-50% •Arizona Drought Monitor = D-4 •Groundwater Level Decline 4.0’ –4.9’ •Over 75 consecutive days of 100 degrees •Groundwater Level Decline of >3.0’ -4.0’ •Lake Mead Elevation predicted for January: 1,045 -1,025 feet (Tier 2b) Stage Four (Extreme) •Arizona Drought Monitor Precip. >25% •Arizona Drought Monitor = D-4 •Groundwater Level Decline >5.0’ •Over 90 consecutive days of 100 degrees •Groundwater Level Decline of >4.0’ •Lake Mead Elevation predicted for January: <1,025 feet (Tier 3)19 Drought Management Team (“DMT”) 20 •Interdepartmental team led by Water Department •Involve staff with subject matter expertise •Communications •Outreach •Development •Logistics •Demonstrate / lead by example 21 Stage 1 triggers DMT Town Manager Council Implement: DMT Stage 2 triggers DMT Town Manager Council Implement: DMT Stage 3 triggers DMT Town Manager Council 14-7-4 Emergency Water Conservation Response… Implement: DMT Stage 4 triggers DMT Town Manager Council 14-7-4 Emergency Water Conservation Response… Implement: DMT 2022 Draft DPP: Stage Designation and Responses 2022 Draft DPP: Stage Response Measures Response Measure Stage 1 Stage 2 Stage 3 Stage 4 Actions Taken By TownReduce water consumption on Town properties by a targeted percentage rate.√+++ Activate a Drought Management Team comprised of multiple Town departments.√√++ Educate Town staff on indoor/outdoor water saving techniques.√√√√ Conduct water audits for Town facilities/departments (if not already completed).√√√√ Limit use of splash pads.√+x Limit washing of fleet vehicles.√+x Institute drought surcharge.√+ Limit hydrant flushing (for non-water quality issues)√+ Limit use of water for fire training & fire hydrant uses (except those for public safety).√+ Increased enforcement of existing water conservation ordinances (water waste fines, etc.).√√ Deny new water service agreements for new construction. Reevaluate water service area policy.√√ Develop arrangements for additional alternative/back up water supplies should they become necessary.√22 √ Apply Measure + Strengthen Measure X Use Restriction 2022 Draft DPP: Stage Response Measures 23 Response Measure Stage 1 Stage 2 Stage 3 Stage 4 Actions Taken ForPublic EngagementOffer rebates for water efficient fixtures; implement conservation incentive programs.√√√√ Implement public information and awareness campaign.++++ Promote conservation practices and efficiency measures. Include water saving tips in bill inserts.√√++ Implement industry green measures for hotels and restaurants.√+++ Encouraged Required Actions Requested/ Required of CustomersRestrict use of misting systems, spraying of impervious surfaces, etc.√+x x Restrict potable water use for construction.√+x x Restrict access for commercial water haulers.√+x x Limit landscape irrigation.√+++ Limit installation of new sod and/or other landscaping. Limit overseeding.√+x x Limit use of ornamental fountains and/or filling pools.√+x x √ Apply Measure + Strengthen Measure X Use Restriction 2022 Draft DPP: Process to Final 24 Interdepartmental feedback and input Council feedback and input Update and circulate draft plan Incorporate any additional comments Schedule for Regular Council session/action 25 Water Conservation Programming Update - Discussion 26 Conservation ProgramADAPTIVE MANAGEMENT Do MonitorLearn Plan Water Conservation Program Past Efforts Present Efforts Future Efforts 27 Conservation ProgramPAST •WaterCASA of soAZ •Address system water loss, i.e. “lost and unaccounted for water” •Drought Preparedness Plan (2007 ordinance) •Develop BMPs –Basis for Annual Conservation Efforts Report •Multiple factors lowered GPCD 1997-2022 •Active conservation programming •EPA water sense / predominance of lower use appliances •Economic downturn and great recession 28 Conservation ProgramPAST 29 Conservation ProgramPAST Conservation ProgramPRESENT •Conditions: •ADWR 5MP –progressively more rigorous regulatory measures •Colorado River: shortage + structural deficit reducing M&I supply to the TAMA •Accelerated growth –residential and non-residential construction •Uncertainty and high cost for new supplies •New grant opportunities •Efforts: •Continuing past efforts (replacing WaterCASA in-house) •Marana Water Festival •Marana Citizens’ Water Academy •Eye on Water (customer portal) •Drought Preparedness Plan update 30 Conservation ProgramPRESENT 31 Conservation ProgramFUTURE•Conditions: •Continued drought •Continued growth •Supply Uncertainty 32 Immediate •continue and expand present efforts, relying on BMPs Near Term (1-2 yrs.) •Conservation Professional •Residential Rebates Mid Term (2-4 yrs.) •Program Analysis / report card •Programming with non residential partners •Additional local and regional partnerships Conservation ProgramFUTURE •Increased Outreach and Engagement •Citizens’ Water Academy •Rebate Programs •Instant Water Heaters •Low Flow Toilets •Rainwater Harvesting •Programs for HOAs / commercial, new construction •Coordinate contracts and partnerships •Evaluate effectiveness of current programs •Research and implement additional programs 33 Community Partners Water Resources Customer Service Proposed Conservation Program:Annual Cost Estimate •Personnel ~$69,000 •Rebates ~$50,000 •Additional Elements ~$30,000 •Supplies for CWA, outreach events •Subject Matter Expertise •Contracts •Partnerships •Training and networking •Total ~$150,000 / year 34 Proposed Conservation Program: Fee Schedule Change Proposal 35 Proposed Program Costs Annual Program Cost $150,000 Revenue Required per 1000 gal.$ 0.17 Monthly Increase to Typical Residential Bill*$1.20 Program Targets 1000 Gallons Acre-feet Pre-Program Annual Volume Sold 900,000 2,762 Reduction Target (5 year goal)5%5% Estimated Annual Volume Saved 45,000 138 *Based on average SFR monthly use / consumption volume of 7,000 gallons. Recommended Path Forward •Continue Working on Water Resources Acquisition Related Projects •Finalize the Drought Preparedness Plan for Council’s Adoption •Finalize the Water Conservation Program/Fees for Council’s Adoption 36 Thank You! Questions and Discussion… 37