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Austin Integrated Water Resource Planning Community Task Force Packet Index September 4, 2020 Page 2 7 9 Item Agenda Minutes Presentation Versión en español a continuación. Special Meeting of the Austin Integrated Water Resource Planning Community Task Force September 4, 2020 at 1pm Austin Integrated Water Resource Planning Community Task Force to be held September 4, 2020 with Social Distancing Modifications Public comment will be allowed via telephone; no in-person input will be allowed. All speakers must register in advance (Day before the scheduled meeting, September 3rd by Noon). All public comment will occur at the beginning of the meeting. To speak remotely at the September 4th Austin Integrated Water Resource Planning Community Task Force Meeting, residents must: •Call or email the board liaison at 512-972-0194 or marisa.flores@austintexas.gov no later than noon, (the day before the meeting). The information required is the speaker name, item number(s) they wish to speak on, whether they are for/against/neutral, and a telephone number or email address. •Once a request to speak has been called in or emailed to the board liaison, residents will receive either an email or phone call providing the telephone number to call on the day of the scheduled meeting. •Speakers must call in at least 30 minutes prior to meeting start in order to speak, late callers will not be accepted and will not be able to speak. •Speakers will be placed in a queue until their time to speak. •Handouts or other information may be emailed to marisa.flores@austintexas.gov by Noon the day before the scheduled meeting. This information will be provided to Board and Commission members in advance of the meeting. •Residents may watch the meeting here: http://www.austintexas.gov/page/watch-atxn-live Reunión del Austin Integrated Water Resource Planning Community Task Force FECHA de la reunion (September 4, 2020) La junta se llevará con modificaciones de distanciamiento social Se permitirán comentarios públicos por teléfono; no se permitirá ninguna entrada en persona. Todos los oradores deben registrarse con anticipación (September 3rd antes del mediodía). Todos los comentarios públicos se producirán al comienzo de la reunión. Para hablar de forma remota en la reunión, los residentes deben: Page 1 of 2 9/4AIWRPCTF2Austin Integrated Water Resource Planning Community Task Force Meeting September 4, 2020 • Llame o envíe un correo electrónico al enlace de la junta en 512-972-0194 o marisa.flores@austintexas.gov a más tardar al mediodía (el día antes de la reunión). La información requerida es el nombre del orador, los números de artículo sobre los que desean hablar, si están a favor / en contra / neutrales, y un número de teléfono o dirección de correo electrónico. • Una vez que se haya llamado o enviado por correo electrónico una solicitud para hablar al enlace de la junta, los residentes recibirán un correo electrónico o una llamada telefónica con el número de teléfono para llamar el día de la reunión programada. • Los oradores deben llamar al menos 15 minutos antes del inicio de la reunión para poder hablar, no se aceptarán personas que llamen tarde y no podrán hablar. • Los oradores se colocarán en una fila hasta que llegue el momento de hablar. • Los folletos u otra información pueden enviarse por correo electrónico a marisa.flores@austintexas.gov antes del mediodía del día anterior a la reunión programada. Esta información se proporcionará a los miembros de la Junta y la Comisión antes de la reunión. • Si esta reunión se transmite en vivo, los residentes pueden ver la reunión aquí: http://www.austintexas.gov/page/watch- atxn-live Page 2 of 4 9/4AIWRPCTF3Austin Integrated Water Resource Planning Community Task Force Meeting September 4, 2020 Austin Integrated Water Resource Planning Community Task Force September 4, 2020 at 1:00pm VIA VIDEOCONFERENCING For more information go to: AGENDA Austin Integrated Water Resource Planning Community Task Force Vanessa Puig-Williams Sarah Richards Lauren Ross Voting Members: Sharlene Leurig - Chair Jennifer Walker – Vice Chair Todd Bartee Diane Kennedy Perry Lorenz Robert Mace Hani Michel Bill Moriarty Ex Officio Non-Voting Members: Austin Water: Kevin Critendon Austin Energy: Kathleen Garrett Austin Resource Recovery: Tony Davee Neighborhood Housing and Community Development: Sam Tedford Office of Innovation: Kerry O’Connor Office of Sustainability: Lucia Athens Parks and Recreation: Liana Kallivoka Watershed Protection: Mike Kelly 1. CALL TO ORDER – September 4, 2020 at 1:00pm 2. APPROVAL OF MEETING MINUTES a. Approval of the meeting minutes from the July 17, 2020 Task Force meeting 3. STAFF BRIEFINGS, PRESENTATIONS, AND OR REPORTS a. Water Forward Implementation Progress and Outlook – City Staff (15 min) i. Task Force Questions and Discussion b. Technical Advisory Group and Task Force Subcommittees Recap – City Staff (30 min) i. Ordinance Subcommittee ii. Task Force Questions and Discussion c. Presentation on Toxic Algae in Lady Bird Lake Discussion – City Staff (15 min) Page 3 of 4 9/4AIWRPCTF4Austin Integrated Water Resource Planning Community Task Force Meeting September 4, 2020 i. Task Force Questions and Discussion` 4. FUTURE AGENDA ITEMS 5. ADJOURN Note: Agenda item sequence and time durations noted above are subject to change. 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, at 512-972-0194, 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 Marisa Flores Gonzalez at 512-972-0194 or marisa.flores@austintexas.gov Page 4 of 4 9/4AIWRPCTF5 S E T U N M I 9/4AIWRPCTF6Austin Integrated Water Resource Planning Community Task Force SPECIAL MEETING July 17, 2020 The Austin Integrated Water Resource Planning Community Task Force convened in a Special Meeting on July 17, 2020 with Social Distancing Modifications. Members in Attendance: Jennifer Walker – Vice Chair Robert Mace Vanessa Puig-Williams Perry Lorenz Bill Moriarty Hani Michel Diane Kennedy Sarah Richards Todd Bartee Ex-Officio Members in Attendance: Kevin Critendon, Sam Tedford Staff in Attendance: Teresa Lutes, Marisa Flores Gonzalez, Helen Gerlach, David Anders __________________________________________________________________________________ 1. CALL TO ORDER Chair Leurig called the meeting to order at 1:05 p.m. CITIZEN COMMUNICATION: GENERAL None. 2. APPROVAL OF MEETING MINUTES The meeting minutes from the May 4, 2020 Austin Integrated Water Resource Planning Community Task Force regular meeting were approved on Member Mace’s motion and Member Walker’s second for a final 7-0-2-2 vote. 3. STAFF BRIEFINGS, PRESENTATIONS, AND/OR REPORTS a. A staff update on Water Forward implementation progress and outlook was provided by Marisa Flores Gonzalez, Austin Water. This was followed by Task Force discussion and input. b. A staff recap of Technical Advisory Group and Task Force Subcommittees was provided by Marisa Flores Gonzalez, Austin Water. This was followed by Task Force discussion and input. c. A staff presentation on Affordability was provided by Dave Anders, Austin Water. This was followed by Task Force discussion and input. 4. ADJOURN Chair Leurig adjourned the meeting at approximately 2:22 pm. Page 1 of 1 9/4AIWRPCTF7 N O I T A T N E S E R P 9/4AIWRPCTF8Water Forward Task Force Meeting 9/4/2020 9/4AIWRPCTF9Agenda  Approval of the July 17, 2020 Meeting Minutes  Water Forward Implementation Progress and Outlook – City Staff (15 min) • Task Force Questions and Discussion  Technical Advisory Group and Task Force Subcommittees Recap – City Staff (15 min) • Ordinance Subcommittee • Task Force Questions and Discussion  Presentation on Toxic Algae in Lady Bird Lake – City Staff (30 min) • Task Force Questions and Discussion 9/4AIWRPCTF103a. Water Forward Implementation Progress and Outlook 9/4AIWRPCTF11Current Water Supplies 9/4AIWRPCTF12Current Water Supplies 9/4AIWRPCTF13LCRA Lake Levels Forecast Source: https://www.lcra.org/download/combined-storage-of-lakes-buchanan-and-travis/?wpdmdl=9375 9/4AIWRPCTF14Water Forward Strategies • Indirect Potable Reuse 9/4AIWRPCTF15FISCAL YEAR 2019-2020 QUARTER 3 REPORT Protecting our Core Colorado River Supplies Conservation FY20 Q3 Progress Future Implementation Steps Planned FY20 Q4 Activities AW staff worked to integrate Water Forward strategies into the Region K planning process. Region K Initially Prepared Plan will move towards adoption in early Fall 2020. 2021: Anticipated State Water Plan development and initial planning for 2026 Region K plan. AW’s Advanced Metering Infrastructure project was branded as My ATX Water. Smart Water Meter systems testing pilot including nearly 5,000 water meters to begin. 2021: Installation of 250,000 meters begins. 2025: Anticipated project completion. Onsite Reuse AW staff developed a draft Onsite Reuse Regulatory Framework and reviewed with internal stakeholders. Staff are planning to present the onsite reuse regulatory framework and incentives for community input in Fall 2020. 2021: Anticipated Council adoption of onsite reuse regulatory framework and, as necessary, incentives. 2023: Anticipated onsite water reuse mandate in effect for new developments >250,000 square feet. Centralized Reclaimed Drought Supplies Staff continued work to 1) implement AW’s 2013 Completing the Core plan to create a reclaimed loop through downtown and east Austin and 2) update the Centralized Reclaimed Master Plan. AW moved toward the final phases of procuring an Aquifer Storage and Recovery (ASR) pilot and program management consultant. Staff will continue to support reclaimed infrastructure projects, development review, and updates to the Centralized Reclaimed Master Plan among other activities. 2021: Anticipated completion of updates to the Centralized Reclaimed Master Plan and development of a Decentralized Reclaimed Plan. 2025: Anticipated completion of the downtown & east Austin core reclaimed loop. RCA for consultant procurement will go to Commission & Council. Procurement is for Phase1 services for desktop modeling and field testing to evaluate potential sites for piloting. FY20-23: Initial contract and identify where to pilot. FY24-27: Design, construct, and test ASR pilot. Develop recommendations for full-scale ASR. FY28-35: Preliminary engineering, design, & construction of full-scale ASR. 9/4AIWRPCTF16Aquifer Storage and Recovery  On 8/27 Council authorized negotiation & execution of a contract with HDR Engineering, Inc. to provide ASR pilot & program management services  Post-contract execution in ~October 2020, team will begin desktop modeling and field testing to evaluate potential sites for a pilot project  Community engagement will continue throughout project  The project plan includes designing and constructing a pilot project by 2027 9/4AIWRPCTF17Onsite Water Reuse and Conservation Code Change Workshop Austin Water is seeking review and feedback on an ordinance to establish regulations in Chapter 15 of City Code (Utility Regulations) for the voluntary design, treatment, permitting, and ongoing maintenance of alternative water sources that are treated for reuse for non-potable applications (Onsite Water Reuse Systems). These regulations are being implemented to advance Austin Water’s Water Forward Plan, which was adopted by City Council in 2018. The plan recommended adopting ordinances and incentives to increase capture, treatment and reuse of onsite alternative water supplies in new development. Please join us for a virtual public workshop on: Wednesday, September 23 from 10:00 a.m. - 12:00 p.m. CST Click Here for the Workshop Link The workshop will provide background and training on the proposed regulatory framework and new incentives to reuse water onsite in development projects. In addition, the workshop will cover updates to commercial, industrial and institutional conservation ordinances that align with the Water Forward Plan. The workshop is targeted to individuals involved in the design, operation and management of commercial and multi-family buildings and their mechanical and plumbing systems. 9/4AIWRPCTF18Climate Planning Work  AW staff planning to convene a Climate Technical Advisory Group made up of climate experts, academics, and other Texas utilities to provide recommendations to enhance AW’s 2018 Water Forward Climate and Hydrology Analyses  Recommendations will inform scope of work for technical climate and/or resilience work required for the Water Forward 2023 plan update process 9/4AIWRPCTF19Questions and Discussion 9/4AIWRPCTF203b. Technical Advisory Group and Task Force Subcommittees Recap 9/4AIWRPCTF218/12 Ordinance Subcommittee  LDC Revision Update • Discussed current LDC status, updates from LDC leadership team, and possible approaches for Water Forward code elements in LDC  Affordability • Discussed AW & NHCD work to date, PACE update, and setting up future opportunities for continued affordability learning/discussion  Community Engagement • Discussed possible community advisory group  Next meeting (9/29) will include detailed discussion of Water Forward code elements in LDC 9/4AIWRPCTF22Questions and Discussion 9/4AIWRPCTF233c. Presentation on Toxic Algae in Lady Bird Lake 9/4AIWRPCTF24Harmful Algal Bloom (HAB): Lady Bird Lake B r e n t B e l l i n g e r, P h . D. , L i z J o h n s t o n W a t e r s h e d P r o t e c t i o n D e p a r t m e n t 8 / 1 3 / 2 0 2 0 C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 9/4AIWRPCTF25What Happened in 2019? La d y B ird , d og d ea ths a t Red B ud a nd Aud itorium shores exp erienced benthic- surfa ce HAB event C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 9/4AIWRPCTF26HAB types Pla nktonic (sing le cells in wa ter column) – Most Common Lake Erie, Des Moines Cohesive ma ts ( benthic, floa ting ma trix of fila ments ) L a d y B i r d L a ke C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 9/4AIWRPCTF27Cyano. Pop. Dynamics S e a s o n a l i t y t y p i c a l ( s u m m e r ) ( D a t a f r o m L a k e A u s t i n a t t r e a t m e n t p l a n t s ; n o t o x i n s m e a s u r e d ! ) “ T h r e e p i l l a r s ” t o a bl o o m • • • L o w f l o w s , l a c k o f r a i n , m i n i m a l t u r b u l e n c e H o t A b u n d a n t N u t r i e n t s ( N , P ) … b u t w h y / w h e n d o e s t o x i c i t y o c c u r ? C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 9/4AIWRPCTF28The 2019 LBL Event A 3d ave 7d ave Dis cha rg e ra tes • L a t e J u l y d r o p i n d i s c h a r g e c o i n c i d e d w i t h b l o o m a n d t ox i n s e v e n t B 2016-2018 3d ave 2019 3d ave ) s m c ( e g r a h c s D m a D i r e l l i M m o T 40 30 20 10 0 40 30 20 10 0 C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 180 200 220 240 260 280 300 320 Julian Day 9/4AIWRPCTF29The 2019 LBL Event A 3d ave 7d ave Dis cha rg e ra tes • L a t e J u l y d r o p i n d i s c h a r g e c o i n c i d e d w i t h b l o o m a n d t ox i n s e v e n t • A v e w a s l o w e r t h a n p r e v i o u s 3 - y e a r p e r i o d ) s m c ( e g r a h c s D m a D i r e l l i M m o T 40 30 20 10 0 40 30 20 10 0 B 2016-2018 3d ave 2019 3d ave C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 180 200 220 240 260 280 300 320 Julian Day 9/4AIWRPCTF30The 2019 LBL Event Wa t e r Te m p s • >30°C weekend of dog deaths N u t r i e n t s Period 2019 Project Bloom NH3 (μg/L) 32.5 ± 16.9 NOx (μg/L) 253.1 ± 181.4 21.9 ± 15.0 TP (μg/L) 2016 – 2018 Monitoring 8.0 ± 0.0 199.0 ± 198.0 14.1 ± 9.3 2019 Monitoring 19.1 ± 18.2 476.0 ± 488.0 26.4 ± 15.5 • • Significantly higher NH3, NOx in 2019 and abundant TP at sites where HAB/dog deaths occurred Elevated compared to previous years (based on routine monitoring) C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 9/4AIWRPCTF31What Made 2019 Different? • Zebra mussels (new) • Alter water chemistry • Promote dense benthic growth 30 2012-2015 2020 • Large flooding, runoff, depositional event (Fall 2018) (new) • Altered sediment and water chemistry? • Climate change (new) • Dog waste (old) • Low flows (old) • But now coupled with new drivers! ) s m c ( e g r a h c s D m a D i r e l l i M m o T e v A 25 20 15 10 5 0 C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 160 180 200 220 240 260 280 300 Juian Day 9/4AIWRPCTF32Forecasting and Prevention (?) N e e d t o k n o w w h y a bl o o m i s o c c u r r i n g, w h e n , a n d w h a t i s c a u s i n g i t – t h e n c a n t r y a n d c o n t r o l i t • Weekly WQ sampling; Daily Discharges; Hourly Temps; Toxin abundances; Species Library (DNA fingerprinting) • Understanding causes and impacts • Treatment or preventative options to explore • • Nutrient Reductions or Flushing/Physical Disturbance Unclear how effective any of these treatments would be in reservoir (typically applied to ponds and where inflows can be managed) • • • • • Increasing flows (but: water rights, drought) Aeration Alum Biochar H2O2 C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 9/4AIWRPCTF33Indirect Potable Reuse Water Forward Drought Strategy  Emergency water supply strategy intended to be used infrequently during severe drought situations  Would convey highly treated reclaimed water from a wastewater plant to Lady Bird Lake so it could be diverted for treatment to drinking water standards  Infrastructure will also used for non- drought strategy to capture local inflows to Lady Bird Lake from Barton Springs and other creeks  Planned to be online by 2040 9/4AIWRPCTF34Indirect Potable Reuse Next Steps  Next steps will include refinement of our near term strategy plan • Further research and study • Algae toxicity considerations will be incorporated into IPR planning • Hydrologic modeling to assess risks and timing to inform triggers & approaches • Development of a strategy-specific adaptive management framework  AW will work in close collaboration with WPD & provide updates to the IPR Subcommittee and full Task Force as we move forward 2020 IPR planning Potential Trigger Accelerated IPR project delivery 2040 Water Forward planned IPR project delivery 9/4AIWRPCTF35Questions? B r e n t B e l l i n g e r, P h . D. , E n v i r o n m e n t a l S c i e n t i s t S e n i o r b r e n t . b e l l i n g e r @ a u s t i n t e x a s . g o v L i z J o h n s t o n , E n v i r o n m e n t a l P r o g r a m C o o r d i n a t o r l i z . J o h n s t o n @ a u s t i n t e x a s . g o v C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 9/4AIWRPCTF36HAB E(a)ffects H u m a n a n d a n i m a l h e a l t h E c o n o m i c P e r c e p t i o n D r i n k i n g w a t e r s t a n d a r d s • Limited and Planktonic-focused • EPA – microcystins 0.3 μg/L; Cylindrospermopsin 0.7 μg/L • States – Anatoxin-a 0.7 – 20 μg/L; Saxitoxin – 0.3 – 3 μg/L C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 9/4AIWRPCTF37The 2019 Bloom Species in the Order Oscillatorialles • Many known toxin producers in this group • UT developing species database Within algae mats dihydroanatoxin dominant • Type of Anatoxin-a (neurotoxin) Contents= <1 – >130 ng/g wet weight mat (or 0.13 mg/kg) • State and federal guidelines and criteria have been developed for water (i.e., ug/L concentrations) • Means that there is no guidance as to what is a “safe” level of toxins in mats C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 9/4AIWRPCTF38Questions and Discussion 9/4AIWRPCTF39