DRAFT - Water Forward 2024 Appendix E APPENDIX E: PRELIMINARY NEEDS ANALYSIS Estimating Water Supply Needs Selecting water management strategies and their targeted yields first requires an estimate of the future water supply needs. For the purposes of this analysis, water supply needs are defined as water supply shortages in each decade of the Water Forward 2024 (WF24) 100-year planning period when no additional conservation, reuse, or supply are implemented. The needs in each decade are estimated using modeling and vary based on scenarios, which reflect plausible future conditions. Only existing water management strategies are included in the estimate of future water supply needs. The modeling effort used to estimate needs is known as the Preliminary Needs Analysis. Model The Texas Commission on Environmental Quality (TCEQ) Water Availability Model (WAM) is the modeling tool used to estimate future water supply needs. The WAM is a collection of model input files covering all state-granted water rights across all river basins in Texas and a generalized computer modeling platform called the Water Rights Analysis Package (WRAP). The WAM is used by state agencies, water right holders, and stakeholders to simulate water availability for a specified water management scenario through a given hydrologic sequence. Typically the WAM is used to simulate water availability during a repeat of historical hydrology which is comprised of monthly naturalized stream flows and net evaporation, generally covering the past 60 to 80 years for the state’s river basins. The following section describes the modified WAM inputs that are used to assess water availability and needs under a range of future conditions. Scenarios The Colorado River Basin WAM is modified for the Preliminary Needs Analysis. First, the WAM is modified to reflect basin-wide demands, including Austin’s demands, in future decades of the 100-year planning period. Secondly, future water supply strategies for non-Austin entities are added in the decade within which the strategy is expected to be operational. Lastly, the WAM’s hydrological inputs are also modified to include projections of future drought and climate conditions in addition to the standard historical hydrology. The pairings of future demands, regional supplies, and hydrological conditions are known as Scenarios. The scenario approach to modeling is intended to explore the range of uncertainty in each of the scenario components across the planning period. E - 1 DRAFT - Water Forward 2024 Appendix E Demands Future demand estimates by decade for Austin and customers of …
APPENDIX F: WATER MANAGEMENT STRATEGY COST AND YIELD CHARACTERIZATION Strategy characterization and costs were developed by Plummer Associates. The Unified Cost Model, a tool developed by the Texas Water Development Board for use in the state water planning process, was used to create standardized capital, operations and maintenance, and annual costs for each strategy. F-1 DRAFT ‐ Water Forward Modeling Characterization of Water Management Strategies Name: Aquifer Storage and Recovery (ASR) Strategy description & assumptions: ASR is characterized as storage of drinking water from AW's water distribution system in an underground aquifer for recovery and use when supplies are scarce. ASR costs and operational assumptions are based on project parameters that have been developed through ASR implementation planning. The yield and storage ranges are used to test the project size against future scenarios. ASR is included in every candidate portfolio for modeling since implementation of the project has started. Modeling assumptions: Yield and storage ranges Year 2030 2040 2050 2060 2070 2080 2120 Min model test annual yield (AFY) 0 6,000 6,000 6,000 6,000 6,000 6,000 Max model test annual yield (AFY) 0 60,000 83,000 83,000 83,000 83,000 83,000 Min model test total storage (AF) 0 20,000 20,000 20,000 20,000 20,000 20,000 Max model test total storage (AF) 0 60,000 120,000 180,000 240,000 300,000 360,000 Scalability assumptions Max start volume (AF) 60,000 Max decadal yield increase (AFY) 30,000 Storage assumptions Does this strategy have a modeled storage element? Other assumptions Yes Can this strategy meet needs above existing COA run‐of‐river water rights and LCRA backup contract? No DRAFT ‐ Water Forward Modeling Characterization of Water Management Strategies DRAFTF-2 DRAFT ‐ Water Forward Modeling Characterization of Water Management Strategies Cost Estimate Summary City of Austin ‐ S‐1 Aquifer Storage and Recovery (ASR) CAPITAL COST Item Estimated Cost For Facilities Primary Pump Station (74 MGD) Transmission Pipeline (66 in dia., approx. 50 miles) Well Fields (72 Wells, Pumps, and approx. 13 miles Well Field Piping) Storage Tanks (Other Than at Booster Pump Stations) Water Treatment Plant ‐ wellfield (37 MGD) Integration Point Infrastructure (10 MG GST, 74 MGD Pump Station, Yard Piping, etc) TOTAL COST OF FACILITIES Engineering and Feasibility Studies, Legal Assistance, Financing, Bond Counsel, and Contingencies (30% for pipes & 35% for all other facilities) Environmental & Archaeology Studies and Mitigation Land Acquisition/Leasing and Surveying Interest During Construction (3% for 5 years with a 0.5% ROI) x TOTAL COST OF …
APPENDIX G: WATER MANAGEMENT STRATEGY EQUITY EVALUATION G-1 Equity and Affordability Framework Draft note sheets with scores for each strategy - attached Themes: • Water Supply Reliability: o Access to water o Infrastructure Resiliency • Public Health o Regulatory requirements o Water Quality o Environment • Accountability o Transparency o Accessibility o Community outreach and education • Affordability and Economic Impacts o Rate impacts o Growth and development o Workforce development Score summary – Potential Impacts/Benefits: • Green highlight: 5 points • Yellow highlight: 3 points • Red highlight: 1 point G-2 Draft Equity and Affordability Notes Centralized Reclaimed Themes Questions Potential Strategy Impacts/Benefits Potential Mitigation Strategies Page 1/3 Score Water Supply Reliability 1.1 Given that marginalized communities can be the most impacted by emergency situations, how does the strategy impact/benefit Austin Water’s access to water supply, especially during drought or other emergency situations? Water Supply Reliability 1.2 How does the strategy benefit Austin Water’s water, reclaimed water, and/or wastewater infrastructure resilience? Water Supply Reliability 1.3 Does this strategy create an inequitable maintenance burden for Austin Water customers who are a part of marginalized communities? Potential for improved resiliency in emergencies by providing access to non-potable water from a second system source. Potential to increase access to water during drought situations if reclaimed water can be used for onsite purposes and to maintain outdoor irrigation to support community spaces. Outdoor irrigation from reclaimed in drought may provide benefit from mitigation of heat island effects. N/A Investing in centralized reclaimed system projects would expand AW's system and provide additional resilience to reclaimed water customers. N/A Possibly-- dual-plumbing for water distribution in residential buildings could result in increased maintenance requirements for owners due to additional pipe, some of which may be located in marginalized communities. However, development projects with a qualified affordable housing component are excluded from the reclaimed connection requirements. Programs to provide maintenance support, training for building management, etc. for dual plumbed systems. Water Supply Reliability 1.4 Does this strategy include energy resilience components? No significant energy resilience components. Water Supply Reliability 1.5 Can this strategy be tailored to help improve water, reclaimed water, and/or wastewater service to marginalized communities? Implementation of this strategy could include a focus on bringing additional benefit to marginalized communities by providing an additional source of water (non-potable) during drought. The GoPurple program provides incentives to help projects offset costs to connect to the centralized …
DRAFT - Water Forward 2024 Appendix H APPENDIX H: COLORADO RIVER LAND ANALYSIS EVALUATION Austin Water’s Wildlands Austin Water currently protects over 48,000 acres of land through its Balcones Canyonlands Preserve (BCP) and Water Quality Protection Lands (WQPL) programs. Managed by the Wildland Conservation Division, these lands protect portions of the Lake Austin and Lake Travis watersheds for endangered species habitat, and areas over the Edwards Aquifer recharge and contributing zones for the long-term resilience of the Barton Springs segment of the Edwards Aquifer. Since its inception in 1998, the Water Quality Protection Lands program has been bolstered by five voter-approved bonds, totaling around $230 million, with an additional $24 million from partnerships. As part of this initiative to protect its source water, the City of Austin set a goal to keep overall impervious cover below 10% within the Source Water Protection Area, which includes the Barton Springs Edwards Aquifer Recharge and Contributing Zones. To help achieve this goal, it is estimated that the City of Austin would need to permanently protect approximately 100,000 acres of land. As of 2024, the City of Austin has been able to acquire permanent protections on over 45,000 acres in this area, the majority of which are managed by Austin Water’s Wildland Conservation Division. Austin Water will continue to protect current and future water supplies through the active management of these Wildlands. Austin Water will also continue to pursue further additions to the Water Quality Protection Lands and Balcones Canyonlands Preserve that meet those programs’ land protection priorities. Colorado River Land Analysis Austin’s drinking water supply has benefited from a landscape of rural, largely working lands throughout the Highland Lakes’ watershed. However, land use in Texas is changing rapidly as the state’s population grows. According to Texas A&M Natural Resources Institute, the 20 counties in the lower Colorado basin have seen an 87% increase in population and the loss of over 108,000 acres of working lands since 1997. The working lands that remain are increasingly being subdivided into smaller and smaller parcels. These trends are likely to continue, emphasizing the need to plan for upstream water quality protection. Source Water Protection refers to the management of areas through which water travels and the regulation of activities on these lands to prevent pollution and contaminants from entering public drinking water sources. The quality and quantity of a city’s drinking water supply, as well as other …
DRAFT - Water Forward 2024 Appendix I APPENDIX I: WATER MANAGEMENT STRATEGY ASSESSMENT AND VULNERABILITY EVALUATION Selecting Water Management Strategy Portfolios The goal of the water management strategy assessment and vulnerability evaluation and selection process is to identify portfolios of water management strategies that, when combined with Austin's core water supplies from the Colorado River and Highland Lakes, will provide a robust and reliable source of water to meet Austin’s demands over the 100-year planning horizon, from 2030-2120. Austin Water has many potential water management strategies that could extend and supplement its core water supplies sourced from the Colorado River. These strategies, compiled from the list of candidates considered in Water Forward 2018 (WF18), include conservation, potable and non-potable reuse, water supply storage, and the development of new water sources. These Water Management strategies are organized into groupings, referred to as portfolios. The evaluation and selection process seeks to identify the best portfolios for Austin Water to address reliability across a wide range of future scenarios while also considering costs and other planning objectives outlined in the Guiding Principles of Water Forward 2024 (WF24). The entire process is referred to as the Water Management Strategy Analysis and Vulnerability Evaluation, or WAVE. A reliable portfolio meets Austin’s water needs over the 100-year planning horizon. These needs are modeled estimates of water supply shortages in each decade if Austin Water implemented no new water management strategies. The needs in each decade vary based on the modeling scenarios, which reflect the wide range of possible future conditions. The WAVE considers varying levels of Austin demand, of basin-wide or regional water supply development, and of climate change impacts over the 100-year planning horizon. The Texas Commission on Environmental Quality (TCEQ) Water Availability Model (WAM), the state’s surface water rights model, is used to evaluate Austin water needs. Water Management Strategy Evaluation The WAVE proceeds in two components, 1) a Water Management Strategy Evaluation and 2) a Vulnerability Analysis and Adaptive Management Plan. The first component addresses the water supply needs of the first 50 years of the WF24 planning horizon, from 2030 to 2080. The water management strategy evaluation begins by considering a large number of possible portfolios for 2080. Since there are many types of water management strategies that can be combined in various ways, the number of portfolios is very large. Each potential portfolio is evaluated using a simulation modeling tool (described …
APPENDIX J: PORTFOLIO DEVELOPMENT AND EVALUATION The top ten candidate portfolios were evaluated as described in the following tables: • Table J-1 Water Forward 2024 Objectives and Performance Measures • Table J-2 Water Forward 2024 Objective Descriptions • Table J-3 Water Forward 2024 Performance Measure Descriptions • Table J-4 Water Forward 2024 Equity and Affordability Framework • Table J-5 Water Forward 2024 2080 Portfolios for Evaluation • Table J-6 Water Forward 2024 Raw Portfolio Evaluation Results J - 1 Table J-1 Water Forward 2024 Objectives and Performance Measures Objective Sub-Objective Performance Measure Data Source Objective Weight Sub- Objective Weight Water Supply Benefits Maximize reliability and resiliency, minimize vulnerability Water Availability Modeling results Maximize portfolio diversity Portfolio diversity score Economic Benefits Maximize cost-effectiveness Cost (lifecycle, capital, operations and maintenance) Strategy Characterization 20% 20% Equity Benefits Equity and affordability score Maximize positive benefits and minimize negative impacts for marginalized communities Equity & Affordability Tool 8% 8% Water Availability Modeling Portfolio Characterization Water Availability Modeling Strategy Characterization Portfolio Characterization 40% 20% Minimize ecosystem impacts Net return flows Minimize net energy use Operational energy use Environmental Benefits Maximize water use efficiency Potable GPCD Minimize water quality impacts Water quality impact score Qualitative Minimize implementation and operational risk Implementation and operational risk score Qualitative Implementation Benefits Maximize water distribution and wastewater collection system resiliency System resiliency benefits Qualitative 12% 3.5% Maximize local control/local resource Volume of local and AW-controlled water resources Portfolio Characterization 35% 5% 4% 6% 6% 4% 3.5% 5% J - 2 Table J-2 Water Forward 2024 Objective Descriptions Objective Objective Description Sub-Objective Water Supply Benefits Avoid severe water shortages during drought and a variety of climate change scenarios Include diverse water management strategies that make use of all water sources Maximize portfolio diversity Maximize reliability and resiliency, minimize vulnerability Economic Benefits Evaluate affordability impacts in a holistic manner that balances near-term and long-term costs Maximize cost-effectiveness Equity Benefits Maximize positive benefits and minimize negative impacts for marginalized communities Maximize positive benefits and minimize negative impacts for marginalized communities Environmental Benefits Develop strategies that continue to protect the natural environment, including source and downstream water quality Minimize ecosystem impacts Minimize net energy use Maximize water use efficiency Minimize water quality impacts Implementation Benefits Develop strategies that are technically, socially, and economically feasible and can be implemented and operated with a manageable level of risk Develop strategies that make use of locally available and …
Water Forward 2024 Plan Report DRAFT – September 3October 21, 2024 Report Cover Page This page intentionally left blank. WATER FORWARD 2024 - DRAFT | ii Director’s Message Austin Water is doing important work to make sure Austin has a strong and reliable water supply, even as our city faces the challenges of growth, drought, and a changing climate. Over the past few years, Austin Water has put smart strategies in place that have already made a big difference. We've focused on conservation, encouraging our customers to use water wisely through recent hot and dry years. We've also launched GoPurple, a program that will expand our reclaimed water system and includes requirements and incentives for new and existing developments to reuse water onsite. We are pursuing water storage strategies to stretch our existing supplies. And working closely with our regional partners, we've strengthened Austin's ability to bridge droughts and provide a sustainable water supply to meet all our community’s water needs. Our work doesn't stop here. Climate science tells us that we must do even more to protect our future. The challenges we face are real, and we need to stay ahead of them. That's why we're committed to learning from our past efforts and adjusting as we go. We've been using an adaptive management approach, which means we to closely monitor how our plans are working and make changes as needed. This is a key part of Water Forward 2024, which provides a roadmap for Austin's water future. We've been working hand in hand with the Water Forward Task Force, a group of dedicated community members who help inform our efforts. Together, we've updated the 2018 plan, adjusted our strategies, and responded to the needs we've identified along the way. This collaborative approach has resulted in updates that not only means we're not only thinking about address today's needs but also prepareing us for tomorrow's challenges. At Austin Water, work is already underway to carry out this updated plan. We're focused on staying transparent and accountable to you, our community, as we move forward. We know that water is essential to our quality of life, and we're determined to protect this precious resource. As we look to the future, we at Austin Water hold a hopeful vision. Austin is a leader in water conservation and sustainability and we see a future where our city continues to thrive, and where …
AUSTIN INTEGRATED WATER RESOURCE PLANNING COMMUNITY TASK FORCE SPECIAL CALLED MEETING MINUTES Monday, October 28, 2024 The Austin Integrated Water Resource Planning Community Task Force convened in a Special Called Meeting on October 28, 2024, with Social Distancing Modifications. Chair WALKER called the meeting to order at 12:02 pm. Members in Attendance: Jennifer Walker, Chair Madelline Mathis Ex-Officio Members in Attendance: Kevin Critendon Members in Attendance Remotely: Bill Moriarty Paul DiFiore Todd Bartee Sarah Faust Robert Mace, Vice Chair Austin Water Staff: Shay Ralls Roalson Teresa Lutes Kevin Kluge Marisa Flores Gonzalez Emily Rafferty Fatima Wahid Young-Hoon Jin Joseph Gonzales Sherri Kuhl Brandon Niese Matt Cullen Richard Hoffpauir Others in Attendance: Qiwen Zhang, Plummer The City of Austin is committed to compliance with the American with Disabilities Act. Reasonable modifications and equal access to communications will be provided upon request. Meeting locations are planned with wheelchair access. If requiring Sign Language Interpreters or alternative formats, please give notice at least 2 days (48 hours) before the meeting date. Please contact Austin Integrated Water Resource Planning Community Task Force liaison Emily Rafferty at 512-972-0427, for additional information; TTY users route through Relay Texas at 711. Page 1 of 2 PUBLIC COMMUNICATION: GENERAL None. APPROVAL OF MINUTES 1. Approval of the meeting minutes from the regular called October 8, 2024, Task Force meeting. The minutes from the October 8th, meeting were approved on Member DIFIORE’ motion and Member FAUST’s second on an 7-0 vote. STAFF BRIEFINGS, PRESENTATIONS, AND/OR REPORTS 2. Presentation on revisions to the draft Water Forward 2024 Plan, Water Conservation Plan, and Drought Contingency Plan reports The presentation was made by Marisa Flores Gonzalez, Program Manager III, and Kevin Kluge, Division Manager, Water Conservation, Austin Water. VOTING ITEMS None Chair WALKER adjourned the meeting at 2:00pm. The minutes were approved at the November 4th, 2024, meeting on Robert Mace’s motion, Hani Michel’s second on an 8-0 vote with one vacancy. Task Force Members Perry Lorenz and Madelline Mathis absent. The City of Austin is committed to compliance with the American with Disabilities Act. Reasonable modifications and equal access to communications will be provided upon request. Meeting locations are planned with wheelchair access. If requiring Sign Language Interpreters or alternative formats, please give notice at least 2 days (48 hours) before the meeting date. Please contact Austin Integrated Water Resource Planning Community Task Force liaison Emily Rafferty at 512-972-0427, for additional …
AUSTIN INTEGRATED WATER RESOURCE PLANNING COMMUNITY TASK FORCE October 8, 2024 --12:00pm Hybrid Regular Called Meeting Waller Creek Center, Room 104 625 East 10th Street Austin, Texas 78701 Some members of the BOARD/COMMISSION may be participating by videoconference. The meeting may be viewed online at: http://www.austintexas.gov/page/watch-atxn-live For more information go to: Austin Integrated Water Resource Planning Community Task Force Public comment will be allowed in-person or remotely by telephone. Speakers may only register to speak on an item once either in-person or remotely and will be allowed up to three minutes to provide their comments. Registration no later than noon the day before the meeting is required for remote participation. The first 10 speakers to register will be allowed a three-minute allotment to address their concerns not on the agenda. To register, contact Emily Rafferty at emily.rafferty@austintexas.gov. The information required is the speaker’s name, item number(s) they wish to speak on if applicable, email address and telephone number (must be the same number that will be used to call into the meeting). CURRENT TASK FORCE MEMBERS: Voting Members: Bill Moriarty Sarah Faust Hani Michel Perry Lorenz Madelline Mathis Todd Bartee Robert Mace, Vice Chair Paul DiFiore Vanessa Puig-Williams Jennifer Walker, Chair Ex Officio Non-Voting Members: Austin Water: Kevin Critendon Austin Energy: Kathleen Garrett Austin Resource Recovery: Donald Hardee Housing: Chase Bryan Office of Innovation: Daniel Culotta Office of Sustainability: Zach Baumer Parks and Recreation: Liana Kallivoka Watershed Protection: Ramesh Swaminathan AGENDA CALL TO ORDER – PUBLIC COMMUNICATION: GENERAL APPROVAL OF MINUTES September 19, 2024. DISCUSSION ITEMS ACTION ITEMS FUTURE AGENDA ITEMS 1. Review and approve the meeting minutes from the Special Called Task Force meeting on 2. Presentation on water distribution system water loss report 3. Presentation on revisions to the draft Water Forward 2024 Plan, Water Conservation Plan and Drought Contingency Plan reports ADJOURN The City of Austin is committed to compliance with the American with Disabilities Act. Reasonable modifications and equal access to communications will be provided upon request. Meeting locations are planned with wheelchair access. If requiring Sign Language Interpreters or alternative formats, please give notice at least 2 days (48 hours) before the meeting date. Please call Austin Integrated Water Resource Planning Community Task Force Liaison, Emily Rafferty at 512-972-0427, for additional information; TTY users route through Relay Texas at 711. For more information on the Austin Integrated Water Resource Planning Community Task Force, please contact …
M E M O R A N D U M TO: Mayor and Council Members THROUGH: Robert Goode, P.E., Assistant City Manager FROM: Shay Ralls Roalson, P.E., Director, Austin Water DATE: October 2, 2024 SUBJECT: Austin Water’s Water Loss Program Review As a part of Austin Water’s focus on managing our community’s water resources in a resilient and sustainable manner, we work to proactively reduce our system water losses. Austin Water employs industry best practices related to water loss control and performs well compared to peer utilities. Water loss can result from a variety of reasons, primarily water main leaks and breaks. We have multiple programs focused on detecting and repairing leaks and responding to main breaks as quickly as possible. As a part of our strategic business plan that uses Effective Utility Management strategies to meet the challenges ahead, Austin Water sought an external expert in water loss control to review our program and make recommendations for improvement. The results of this study are documented in the Water Loss Program Review, Analysis, and Optimization report. The report finds that Austin Water has comprehensive programs to track and reduce water losses, with successful performance on key water loss strategies, including rapid response times to repair leaks, a robust capital program to replace poor performing water mains, and proactive leak detection programs in both large and small diameter pipelines. The report recommends improvements and additional investment in the following areas: • • • • • • • • Implement programmatic improvements to proactive leak detection activities. Expand program currently underway to replace poor performing water service lines. Improve production meter accuracy at the water treatment plants. Strengthen data validation practices for large meters. Expand data management and analysis tools across the water loss program. Improve estimates of unbilled authorized consumption (e.g., water for flushing and firefighting). Implement training for utility staff on reducing water loss during normal operations. Evaluate creating district metering areas to pilot reducing water loss through pressure management. Page 1 of 2 A summary of the recommendations is included in the attached study. Austin Water has launched a cross-departmental team to execute these recommendations. Austin Water will develop a regular report to stakeholders on the status of these recommendations. We will discuss these findings in more detail at the Integrated Water Resource Planning Community Task Force (aka Water Forward Task Force) on October 8 and the Water and …
WATER LOSS PROGRAM REVIEW, ANALYSIS & OPTIMIZATION BLACK & VEATCH PROJECT NO. 415677 FINAL PREPARED FOR Austin Water 1 OCTOBER 2024 2.0 Introduction and Initial Audit Analysis ..................................................................................... 2-1 AUSTIN WATER | Water Loss Program Review, Analysis & Optimization Table of Contents Abbreviations and Definitions ................................................................................................................ vi Key Terms ............................................................................................................................................. vii 1.0 Executive Summary ................................................................................................................. 1-1 1.1 1.2 2.1 2.2 2.3 2.4 3.2 3.3 1.2.1 2.2.1 2.2.2 2.3.1 1.2.2 1.2.3 2.3.2 2.3.3 2.3.4 2.3.5 2.3.6 2.3.7 2.3.8 2.4.1 State Audit Requirements ..................................................................................... 2-2 Determination of Real Losses .............................................................................. 2-8 Determine Authorized Consumption ................................................................... 2-6 Outline of AWWA Audit Approach ........................................................................ 2-3 Gather Data and System Information .................................................................. 2-4 Determination of Water Loss ............................................................................... 2-7 Determination of Non-Revenue Water ................................................................. 2-9 Determining Apparent Loss .................................................................................. 2-7 Determine System Input ....................................................................................... 2-5 Real Loss (Leakage) ............................................................................................. 1-3 Production Metering ............................................................................................. 1-3 AW’s Water Auditing and Loss Control Programs .............................................. 2-2 Apparent Loss ....................................................................................................... 1-3 Water Loss Audit Approach .................................................................................................. 2-2 Summary of Recommended Strategies ............................................................................... 1-2 Trends and Key Performance Indicators ............................................................................. 1-1 City of Austin System Profile ................................................................................................ 2-1 Introduction ............................................................................................................................ 2-1 Water Loss Audit Results .................................................................................................... 2-10 Performance Indicators and Data Validity ......................................................... 2-10 Performance Indicators ...................................................................................... 2-12 Data Validity ........................................................................................................ 2-12 Mayfield ............................................................................................................... 3-10 Davis WTP Summary and Recommendations .................................................. 3-10 Ulrich WTP ........................................................................................................................... 3-12 Ullrich Low Service Pump Station ...................................................................... 3-12 Ullrich Medium Service Pump Station ............................................................... 3-13 Ullrich High Service Pump Station ..................................................................... 3-13 Ullrich WTP Summary and Recommendations ................................................. 3-13 i Davis WTP .............................................................................................................................. 3-5 Handcox WTP ........................................................................................................................ 3-1 Davis High Service Pump Station ......................................................................... 3-7 Davis Raw Water Pump Station............................................................................ 3-5 Handcox WTP Summary and Recommendations ............................................... 3-3 Davis Medium Service Pump Station ................................................................... 3-6 Handcox Raw Water Meters ................................................................................. 3-1 Handcox Finished Water Production Meter 1 ..................................................... 3-2 3.2.2 3.2.3 3.2.4 3.2.5 3.3.1 3.3.2 3.3.3 3.3.4 3.1.2 3.1.3 3.2.1 2.4.2 2.4.3 3.1.1 3.0 Production Metering Analysis .................................................................................................. 3-1 3.1 BLACK & VEATCH | Table of Contents AUSTIN WATER | Water Loss Program Review, Analysis & Optimization 5.3 5.4 6.1 6.2 6.3 6.4 6.5 3.4 Water Exports ...................................................................................................................... 3-14 4.0 Apparent Loss Analysis ........................................................................................................... 4-1 4.1 Customer Metering Inaccuracies ......................................................................................... 4-1 Meter Testing Staffing .......................................................................................... 4-3 Meter Testing Equipment and Methodologies .................................................... 4-3 Meter Testing Reporting ....................................................................................... 4-4 4.2 Systematic Data Handling Errors ......................................................................................... 4-4 Billing Data Investigation ...................................................................................... 4-4 4.3 4.4 Unauthorized Consumption .................................................................................................. 4-5 Apparent Loss Cost ............................................................................................................... 4-6 5.0 Real Loss Analysis …
WATER LOSS PROGRAM REVIEW, ANALYSIS & OPTIMIZATION Presentation to Water Forward Task Force Andrew Chastain-Howley October 8, 2024 Report Overview 1.0 Executive Summary 2.0 Introduction and Initial Audit Analysis • City of Austin System Profile • Water Loss Audit Approach/Results • Data Validity 3.0 Production Metering Analysis 4.0 Apparent Loss Analysis • Customer Metering Inaccuracies • Systematic Data Handling Errors • Costs of Apparent Losses 5.0 Real Loss Analysis • COA Leakage Detection • Real Loss Component Analysis/Results • Costs of Real Losses 6.0 Goals and Recommended Strategies • Production Metering Strategies • Apparent Loss Strategies • Real Loss Strategies • Other Strategies KPI Real Loss (ILI) Real Loss (gal/conn/day) Apparent Loss (gal/conn/day) Data Validity 2022 AUDIT 4.1 75.60 17.40 77 2030 GOAL (THIS PROJECT) 3.0 55.60 7.40 85 AW’s Water Forward (2024) ILI Goal is 3.0 by 2040. 2 AWWA Manual M36 Water Audits and AWWA Manual M36 Water Audits and Loss Control Programs Loss Control Programs 3 Real Loss Component Analysis See Section 5.2 & Appendix A How does Austin Water’s Real Loss Compare to Other Utilities? Mains Failure Frequency Comparison Service Connection Failure Frequency Comparison ) r y / s e l i m 0 0 1 / r e b m u n ( 30.0 25.0 20.0 15.0 10.0 5.0 0.0 ) r y / s n o i t c e n n o c e c i v r e s 0 0 0 1 / r e b m u n ( , 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 Failure Frequency Austin Water Department Average Failure Frequency in North America (WaterRF 4372) Failure Frequency for Optimized Distribution Systems (Friedman 2010) Failure Frequency Austin Water Department Failure Frequency for Optimized Systems (AWWA UARL) 4 Austin’s Ongoing Efforts See Sections 4.1, 5.1, 6.1 Four Pillars of Leakage Management Pressure Management Speed and Quality of Repairs Active Leakage Control Real Losses in this range are not technically recoverable Real Losses in this range are not economic to recover Economically Recoverable Annual Real Losses Pipeline and Asset Management Selection, Installation, Maintenance, Renewal, Replacement Renewing Austin Third-party proactive leakage detection AW leakage detection program 5 Austin’s Ongoing Efforts See Sections 4.1, 5.1, 6.1 Development of strategies through Austin's Water Forward program Replacing smaller meters to transition to Advanced Metering Infrastructure (AMI) Meter calibration/verification and validation 6 Key Findings 1 Limitations with production piping …
Water Forward 2024 Plan Report This page intentionally left blank. DRAFT – September 3, 2024 Report Cover Page WATER FORWARD 2024 - DRAFT | 2 Director’s Message Austin Water is doing important work to make sure Austin has a strong and reliable water supply, even as our city faces the challenges of growth, drought, and a changing climate. Over the past few years, Austin Water has put in place smart strategies that have already made a big difference. We've focused on conservation, encouraging our customers to use water wisely through recent hot and dry years. We've also launched GoPurple, a program that includes requirements and incentives for new and existing developments to reuse water onsite. We are pursuing water storage strategies to stretch our existing supplies. And working closely with our regional partners, we've strengthened Austin's ability to bridge droughts and provide a sustainable water supply to meet all our community’s water needs. Our work doesn't stop here. Climate science tells us that we must do even more to protect our future. The challenges we face are real, and we need to stay ahead of them. That's why we're committed to learning from our past efforts and adjusting as we go. We've been using an adaptive management approach, which means we closely monitor how our plans are working and make changes as needed. This is a key part of Water Forward 2024, which provides a roadmap for Austin's water future. We've been working hand in hand with the Water Forward Task Force, a group of dedicated community members who help inform our efforts. Together, we've updated the plan, adjusted our strategies, and responded to the needs we've identified along the way. This collaborative approach means we're not only thinking about today's needs but also preparing for tomorrow's challenges. At Austin Water, work is already underway to carry out this updated plan. We're focused on staying transparent and accountable to you, our community, as we move forward. We know that water is essential to our quality of life, and we're determined to protect this precious resource. As we look to the future, we at Austin Water hold a hopeful vision. Austin is a leader in water conservation and sustainability and we see a future where our city continues to thrive, and where every resident has access to clean and reliable water, no matter what challenges come our way. Together, we can …
1 Presentation on revisions to the draft Water Forward 2024 Plan, Water Conservation Plan and Drought Contingency Plan 10/8/24 Report Edits No further edits were made to the WCP/DCP in this round Water Forward 2024 edits include: • New cover page, header, footer, and water supply graphics • Ch. 4: Edits to Colorado River Land Analysis section (pp. 25-27) • Ch.5 • Additional intro language and strategy summary table (p. 28) • Updated Customer Side Water Use Management 2030 & 2040 Yields (p. 30) • Updated Native and Efficient Landscape 2030 & 2040 Yields (p. 31) • Edits to Land Conservation Strategies section (pp. 44-46) • Ch.6: Added section on 100-Year Adaptive Management Plan (pp. 48-49) Pending edits: • Completion of Executive Summary • Appendix references (and completion of appendices) • Breakout of Indirect Potable Reuse & Capture Local Inflows to Lady Bird Lake • Further grammar, spelling, readability, and formatting edits as needed Colorado River Land Analysis Overview Identifying Priority Conservation Areas in the Highland Lakes Watershed Helps understand solution geography and scale • Lake Travis drainage area is 40x that of entire Austin corporate limits! • Want/need to focus on the highest priority areas within this large basin • Some areas clearly more critical to conserve than others Rating system: consider multiple factors • Water supply: stream flows, recharge, springs, wells, AW intakes • Environmental: riparian/floodplains, impervious cover, protected lands, slopes, vegetation Combine via GIS to spatially show priority conservation areas in the Highland Lakes Watershed Central Texas and waterways of interest Rivers • • Colorado Llano • • • • Pedernales San Saba North Llano South Llano Watersheds • Middle Colorado, Brady, San Saba, Llano, North Llano, South Llano, Buchanan-LBJ Lakes, Pedernales, Lake Travis, Lake Austin Lake Austin Watershed (92 sq. mi.) Barton Springs Zone (371 sq. mi.) GIS analysis factors: scales and weights Flow Recharge Zones Springs Distance from Intakes Wells Combined Water Factors Raster Combined Water Factors Raster Riparian & Floodplain Vegetation Pavement Slopes Protected Lands Vegetation Combined Environmental Factors Raster Combined Enviro. Factors Raster Final Conservation Priority Raster Final Conservation Priority Raster 13 Colorado River Land Analysis Next Steps Further refine conservation prioritization model based on stakeholder feedback Conduct additional analysis to include economic, equity, and social factors + further watershed modeling Engage with land conservation and governmental entities; evaluate potential partnership opportunities Evaluate …
Tentative Schedule 10/9 WF24 Update Working Group Meeting • Opportunity for further discussion of WF24/WCP/DCP Late October Water Forward Task Force meeting (Date TBD) • Opportunity for further discussion of WF24/WCP/DCP 11/4 Water Forward Task Force meeting • Recommendation for Council action re: WF24/WCP/DCP 11/12 AWOC meeting • Briefing and possible action re: WF24/WCP/DCP 11/13 W/WW Commission meeting • Recommendation for Council action re: WF24/WCP/DCP 11/21 Council meeting • Consideration of WF24/WCP/DCP
AUSTIN INTEGRATED WATER RESOURCE PLANNING COMMUNITY TASK FORCE REGULAR CALLED MEETING MINUTES Tuesday, October 8, 2024 The Austin Integrated Water Resource Planning Community Task Force convened in a Regular Called Meeting on October 8, 2024, with Social Distancing Modifications. Chair WALKER called the meeting to order at 12:02 pm. Members in Attendance: Jennifer Walker, Chair Robert Mace, Vice Chair Madelline Mathis Ex-Officio Members in Attendance: Chase Bryan Kevin Critendon Members in Attendance Remotely: Bill Moriarty Paul DiFiore Hani Michel Sarah Faust Vanessa Puig-Williams Austin Water Staff: Shay Ralls Roalson Teresa Lutes Kevin Kluge Marisa Flores Gonzalez Emily Rafferty Fatima Wahid Young-Hoon Jin Joseph Gonzales Sherri Kuhl Justin Bates Brandon Niese Matt Cullen Richard Hoffpauir Charles Celauro Jose Emperador The City of Austin is committed to compliance with the American with Disabilities Act. Reasonable modifications and equal access to communications will be provided upon request. Meeting locations are planned with wheelchair access. If requiring Sign Language Interpreters or alternative formats, please give notice at least 2 days (48 hours) before the meeting date. Please contact Austin Integrated Water Resource Planning Community Task Force liaison Emily Rafferty at 512-972-0427, for additional information; TTY users route through Relay Texas at 711. Page 1 of 2 Dan Strub Others in Attendance: Qiwen Zhang, Plummer Brigit Buff, Plummer Curtis Smith, TNLA Cody McCann, Plummer Andrew Chastain-Howley, Black & Veatch PUBLIC COMMUNICATION: GENERAL 1. Curtis Smith gave a public comment in-person. APPROVAL OF MINUTES 1. Approval of the meeting minutes from the special called September 19, 2024, Task Force meeting. The minutes from the September 19th, meeting were approved on Member MATHIS’ motion and Member FAUST’s second on an 8-0 vote. STAFF BRIEFINGS, PRESENTATIONS, AND/OR REPORTS 2. Presentation on water distribution system water loss report The presentation was made by Andrew Chastain-Howley, Black & Veatch, Matt Cullen, Division Manager of Engineering & Operations Support, Austin Water. 3. Presentation on revisions to the draft Water Forward 2024 Plan, Water Conservation Plan and Drought Contingency Plan reports The presentation was made by Marisa Flores Gonzalez, Program Manager III, Sherri Kuhl, Environmental Resource Officer, and Justin Bates, Environmental Conservation Division Manager, Austin Water. VOTING ITEMS None Chair WALKER adjourned the meeting at 2:34pm. The minutes were approved at the October 28th, 2024, meeting on Paul DiFiore’s motion, Sarah Faust’s second on an 7-0 vote with one vacancy. Task Force Members Hani Michel and Perry Lorenz and Vanessa Puig-Williams absent. …
