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Welcome to the event schedule and directory for the 16th Annual Salt Lake County Watershed Symposium, November 16-17, 2022. Free and open to all, the Symposium encourages a comprehensive review of the current state of our watershed.
Company: Great Salt Lake clear filter
Sunday, November 16
 

11:20am MST

How Resilient are our Water Resources to the Changing Climate?
Sunday November 16, 2025 11:20am - 11:50am MST
What are the observed trends and future projections of the climate signals? And how would the snowpack, soil moisture, and streamflow change in the future? Let's discuss results using climate and hydrologic models (i.e., VIC, and RAPID) for the Jordan river basin (i.e., Spanish Fork, Provo, Utah Lake, and Jordan River).

In the recent years, we have witnessed mega-drought events and stresses on precious water resources and the environment. The observed climate and hydrologic data show changing patterns in rain and snowpack, record high summer temperatures, variation in soil moisture contents, very low water reservoir levels, lowered groundwater, and resulting streamflow. The consequences of events have resulted in observed historical low water levels in the Great Salt Lake. For policymakers and water professionals, it is important to answer some of the key questions such as (1) what are the observed climate change signals in water basins in the state of Utah, and (2) what are the potential future projections of the climate change and hydrological responses, (3) how resilient are our water resources against changing climate and extreme events, and (4) what are potential adaptation strategies to achieve the goals of water resilience.

This presentation attempts to answer part of those questions in two parts. The first part of the presentation will include an analysis of historical data on the observed temperature, precipitation, snowpack, and streamflow in several parts of Utah. The analysis results will reveal the rate and trends in the changes of climate stressors on water resources. The second part of the presentation will cover future climate projection and impacts on water resources, including precipitation, snowpack, soil moisture, and streamflow. The analysis will be based on multiple Global Climate Model results statistically downscaled in the finer resolutions of 6.25 km, forced run the Variable Infiltration Capacity model (VIC), and Routing Application for Parallel computation of Discharge (RAPID) models.

This presentation covers the larger Jordan river basin (includes Spanish Fork, Provo, Utah Lake, Jordan River), one of the most populated basins in the state and one of the primary sources of water supply to the Great Salt Lake. The models were calibrated from 1980 to 2004 and validated for 2005 to 2020. It includes continuous daily simulations of multiple climate projection inputs until the end of the 21st century. This presentation is based on one of the ongoing and in-house modeling projects of the Utah Division of Water Resources to evaluate the impact of climate change in GSL watersheds. Water policy professionals will have an opportunity to get informed about signals and trends of climate change and its impact on water resources at the regional level. Technical water professionals will have an opportunity to learn the type and sources of data, methods, and models that can be applied to large basin-level water resources assessment.

The following are learning objectives from these presentations: 1. Basic understanding of main climate signals and trends considered in water resources assessment. 2. Become informed about climate model projections at the basin level. 3. Gain an understanding of how large-scale hydrological models are developed to simulate climate change impact at the basin level. 4. Understand how resilient our local water bodies are against the changing climate.
Speakers
avatar for Krishna Khatri

Krishna Khatri

Senior Water Resource Engineer, Utah Division of Water Resources
Krishna Khatri (Ph.D., PE) is a Senior Water Resources Engineer at the Utah Division of Water Resources. Krishna’s main areas of interest include hydrological and hydraulics assessment using computer models, climate change projection and impact analysis, quantitative risk and uncertainty... Read More →
Sunday November 16, 2025 11:20am - 11:50am MST
Lower Level - Ballroom C

2:20pm MST

Poster Session
Sunday November 16, 2025 2:20pm - 3:20pm MST
The poster session is a forum for presenters to highlight programs and to share successful ideas with colleagues by presenting a research study, a practical problem-solving effort, or an innovative program or project. Posters are listed alphabetically by title.
==> Full Abstracts

Adaptive Management Strategies at Big Bend Habitat Restoration Area
Anders Eckert, Utah Conservation Corps & West Jordan City Parks
The Big Bend Restoration Project is located along the Jordan River and is filled with a high abundance of biodiversity. The Big Bend provides a native home for many different species offering reprieve from the Urban infrastructure found around the park. This presentation will inform Adaptive Management Strategies and plans for the Big Bend Site.

An Urban Canal and the Logan River: Bugs, Leaves, and Water Quality
Ellie Smith-Eskridge, Utah State University
For my masters research, I compared water quality, freshwater invertebrates, and leaf decomposition between an urban canal and a natural stream, the Logan River. The canal showed faster leaf decomposition relative to the Logan River, and leaf-shredding amphipods were abundant in the canal.

End-Member Mixing Analysis of the Upper Provo River
Alyssa Thompson, Brigham Young University
The Provo River is an important water source for Utah County, but little is known about the sources of water that feed into this river. This study identifies these main sources of water, what the chemistry of these sources look like, and calculates the percent contribution from each of these sources to understand how these sources change over time.

Green Infrastructure Microbial Community Response to Storm Events
Yvette Hastings, University of Utah
Have you ever wondered what stormwater green infrastructure (SGI) bioswales are? In this presentation, I will describe what these are and how soil microbial communities respond to precipitation events in experimental bioswales.

How Dry Must the Great Salt Lake Be to Produce Hazardous Dust?
Thorn Merrill, University of Utah
Airborne dust effects the air quality of the Wasatch front in Utah. One of the closest dust sources is the Great Salt Lake Playa. Surface crust and soil moisture are two main dictators of dust emission in an emissive area. Where there is broken or absent crust dust emission decreases as soil moisture increases.

Investigating Ground and Surface Interactions within Utah Lake, UT
Justin McCurry, Courtney Brown, Kyle Johnson, Daren Nelson, Utah Valley University
Our team is investigating the effectiveness of identifying groundwater and surface water interactions of cold water springs at Utah Lake, UT by integrating traditional flow analyses with thermal imaging cameras from small unmanned aerial vehicles (UAVs).

Jordan River Channel Improvements at Brighton North Point Diversion
Hannah Murphy, Salt Lake County Watershed Planning & Restoration
Removal of the Brighton North Point Canal diversion structure provided a seamless, navigable river system, reestablishing flood plains, improving instream habitat, and mitigating invasive weed species throughout.

LGBTQIA+ DEI Efforts of Birding & Bird Conservation Organizations
Georgie Corkery, Utah State University
The goal of this research is to develop a DEI handbook template for the birding community, with a completed section on LGBTQAI+. This will be executed via an analysis of DEI efforts of 16 birding and bird conservation organizations, interviews with queer birders, and a look into queer ecology.

Mapping Flows of Influence Across Utah's Two Largest Lakes
Shannon Lambson, Brigham Young University; Ben Abbott, Brigham Young University
An interactive look at how information and influence move between stakeholders, using the Utah Lake islands proposal as a case study. We invite input during the session from the community about how to improve coordination and communication in conservation and restoration efforts for the integrated Great Salt Lake system.

Microbial Community Analysis of Anaerobic Digesters
Maliea Holden, Brigham Young University
Caldicellulosiruptor bescii, when used as a pretreatment of waste activated sludge, increases gas production and decreases solid waste in anaerobic digestion effluent.

Microbial Community Composition to Fingerprint Dust Emission Sources
DeTiare Leifi, Brigham Young University
Particular microbial communities unique to land use and location may serve as general indicators in dust fingerprinting.

Muddy Snow and Hazardous Air: Dust Transport from Great Salt Lake
Maura Hahnenberger, Shane Schmidt, Salt Lake Community College
The decline of the Great Salt Lake has exposed large areas of shoreline that now produce hazardous dust when winds blow. Continued episodic drought and consumptive water use will make recovery of Great Salt Lake levels a challenge, posing the threat of continued hazardous dust transport into the future.

Nutrient Release from Utah Lake Wetting and Drying Cycles
Kate Scanlan, Brigham Young University
Utah Lake littoral sediments are subject to frequent drying and wetting cycles that are a result of annual variability in water levels across Utah Lake. These changing water levels result from a combination of natural and anthropogenic factors, and can lead to potentially increased nutrient release rates of N, P, and organic C.

Opportunities for Increasing Mass Transit in Suburban Utah County
Katie Lawrence, Brigham Young University
Transportation is a large source of air and stormwater pollution and greenhouse gas emissions. This pollution has only increased with suburban sprawl. Thus, we are proposing a framework for changes to Utah's mass transit infrastructure based on a local spatial analysis, and discussing the implications for air and water quality.

Seasonal Nutrient Limitations of Various Microbes in Utah Lake
Sarah Chan, Brigham Young University
Cyanobacterial and algal blooms present unique issues to be understood thoroughly. We found that the nutrient limitation of cyanobacteria, and to a lesser extent phytoplankton, was influenced by season and space.

Thermal Spring Interactions at Utah Lake via the use of UAVS
Kyle Johnson, Justin McCurry, Courtney Brown, Daren Nelson, Utah Valley University
Our team is investigating the effectiveness of utilizing thermal imaging cameras from small unmanned aerial vehicles (UAVs) to better understand how thermal hot springs are interacting with Utah Lake and its surrounding ecosystems.

Toxic Algae in a Changing Climate: Protecting Recreational Health
Hannah Bonner, Utah Division of Water Quality
Warming water temperatures, declining reservoir levels, and increasing human disturbance all foster the growth of harmful algal blooms (HABs). The Utah Division of Water Quality (UDWQ), in partnership with local health departments, works to mitigate this risk through cooperation, communication, and proactive monitoring in Salt Lake County.

Toxin Producers or Non-Toxin Producers: What causes them to Bloom?
Shadman Kaiser, University of Utah; Ramesh Goel, University of Uta
Posters
AT

Alyssa Thompson

Graduate Student, Brigham Young University
Alyssa Thompson is a graduate student at Brigham Young University studying Geological Sciences. She also received her undergraduate degree at BYU, where she met her husband, Carson. She has worked with her supervisor Dr. Greg Carling for 4 years studying the chemistry of Provo River... Read More →
AE

Anders Eckert

Lead Habitat Restoration Member, SLC Trails & Natural Lands
University of Utah Alumni. Graduated with a BS in Environmental and Sustainability Studies with an emphasis on conservation & land management and minors in political science and geography. A list of areas I am skilled in are Volunteer Assistance, Natural Resource Management, Nonprofit... Read More →
avatar for Ben Abbott

Ben Abbott

Professor of Watershed Ecology, BYU
Ben works primarily on the permafrost climate feedback and water quality in river networks. Drawing on biogeochemistry, evolutionary biology, and social science, his research investigates how the co-evolution of landscapes and ecosystems results in broad-scale patterns of biological... Read More →
avatar for Courtney Brown

Courtney Brown

Undergraduate Research Assistant, Utah Valley University
Courtney Brown is an undergraduate student at Utah Valley University studying Environmental Science and Management. Courtney is part of a research team funded by the National Science Foundation that is investigating groundwater and surface water interactions surrounding Utah Lake... Read More →
avatar for Daren Nelson

Daren Nelson

Associate Professor, Utah Valley University
Dr. Nelson is an Associate Professor in the Department of Earth Science at Utah Valley University and specializes in Hydrology. As part of a research project funded by the National Science Foundation he is mentoring a team of undergraduate research assistants that are investigating... Read More →
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DeTiare Leifi

Graduate Student, Brigham Young University
DeTiare Leifi analyzes microbes in dust emission sources to find unique microbial communities specific to land use and location. She works at Brigham Young University for Dr. Zachary Aanderud.
avatar for Elllie Smith-Eskridge

Elllie Smith-Eskridge

Master's student, Utah State University
I'm a Master's student in the Department of Biology at Utah State University. For my research, I am studying water quality, freshwater invertebrates, and leaf decomposition in a urban canal and the Logan River in Logan, Utah.
avatar for Flore Elliott

Flore Elliott

Student Researcher, Westminster College
While her career interests lie within the world of crime science, Flore definitely got her fair share of dead fish this summer. As a senior studying chemistry at Westminster College, she has been involved in many science outreach activities with the local elementary schools and events... Read More →
GC

Georgie Corkery

Research Assistant, Utah State University
Master of science student in the Department of Environment and Society at Utah State University. Passionate environmentalist and feminist. Interested in community ecology, translational ecology, and critical ecology.
HB

Hannah Bonner

Environmental Scientist, Utah Division of Water Quality
Dr. Hannah Bonner is an Environmental Scientist for the Utah Division of Water Quality. In this capacity, Hannah manages Utah's recreational water quality programs. Her work emphasizes monitoring, analyzing, communicating, and responding to waterborne pathogens and harmful algal blooms... Read More →
avatar for Hannah Murphy

Hannah Murphy

Watershed Planner/Scientist, Salt Lake County Watershed
Hannah works as a Watershed Planner for Salt Lake County improving riparian areas of the local watershed. She is often on the Jordan River working to restore and stabilize banks and improve stream habitat. She works with local municipalities and other agencies to maintain our waterways... Read More →
JM

Justin McCurry

Undergraduate Research Assistant, Utah Valley University
Justin McCurry is an undergraduate student at Utah Valley University studying Environmental Science and Management. Justin is part of a research team funded by the National Science Foundation that is investigating groundwater and surface water interactions surrounding Utah Lake. The... Read More →
KS

Kate Scanlan

Research Assistant, Brigham Young University
Kate Scanlan is an undergraduate student studying environmental science at Brigham Young University. A student researcher, she has spent time researching waste-to-energy systems, methanogen culturing, microbial communities in desert soils, and Utah Lake sediments. When she graduates... Read More →
KL

Katie Lawrence

Research Assistant, BYU Abbott Lab of Ecosystem Ecology
Katie Lawrence is a junior undergraduate at BYU studying Environmental Science and Sustainability. They are in charge of coordinating synoptic sampling events in the Abbott Lab of Ecosystem Ecology and are heading the featured project on public transportation in Utah County. They... Read More →
KJ

Kyle Johnson

Undergraduate Research Assistant, Utah Valley University
Kyle Johnson is an undergraduate student at Utah Valley University studying Environmental Science and Management. Kyle is part of a research team funded by the National Science Foundation that is investigating groundwater and surface water interactions surrounding Utah Lake. The team... Read More →
avatar for Maliea Holden

Maliea Holden

PhD Student, Brigham Young University
I am a PhD student at BYU working to optimize anaerobic digestion. As part of this process, somedays you can find me scooping manure out of a cow's pen, and on other days, I am found in a sterile lab extracting DNA. On all days, I hope to make advances in field of waste water tre... Read More →
avatar for Maura Hahnenberger

Maura Hahnenberger

Associate Professor of Geosciences, Salt Lake Community College
Maura Hahnenberger, PhD is an Associate Professor in the Geosciences Department at Salt Lake Community College. At SLCC she teaches and advises in the Atmospheric Sciences and Geography programs in both face to face and online settings. Maura is the founder of the WaterGirls and DustKids... Read More →
RG

Ramesh Goel

Professor, University of Utah
Dr. Goel is a professor of environmental engineering at the University of Utah. He researches surface water quality and wastewater treatment. HE is the recipient of the presidential award in 2011 and the recipient of other awards. He has published more than 905 papers in the likes... Read More →
avatar for Sarah Chan

Sarah Chan

Master's Student, Brigham Young University
Sarah Chan is a master's student at Brigham Young University working with Dr. Zachary Aanderud. Her primary research is focused on the microbial populations of dust in southern Utah, including variability based on location and land-use type. She has previously published in the field... Read More →
avatar for Shadman Kaiser

Shadman Kaiser

Graduate Research Assistant, University of Utah
I am Ph.D. student working in Dr. Ramesh Goel's lab working on my second year. I have been working on Cyanobacterial bloom using genomic tools.
SS

Shane Schmidt

Research Assistant, Salt Lake Community College
Shane Schmidt is a research assistant on the Dust Across a Desert-Urban-Summit (DUST^2) project and a student in Atmospheric Sciences at Salt Lake Community College. His love of nature has led him to his work on dust storms and his career goal is to become a hydrologist in water resource... Read More →
SL

Shannon Lambson

Undergraduate Researcher, Brigham Young University
Shannon Lambson is an undergraduate at BYU studying Environmental Science and Sustainability. Her interests include wildlife conservation, improving access to women’s health in developing countries, and watching reruns of the Crocodile Hunter.
TM

Thorn Merrill

Graduate Student, University of Utah
My name is Thorn Merrill. I grew up in the green mountains of northern Vermont. I completed my undergraduate degree at Bates College in Maine with a major in geology. I then moved to Utah to pursue my outdoor hobbies including skiing, rock climbing and mountain biking. I am now at... Read More →
avatar for Yvette Hastings

Yvette Hastings

Graduate Student Research Assistant, University of Utah
I recently completed my M.Sc. in Geography at the University of Utah with an Interdisciplinary Graduate Certificate in Hydrology and Water Resources. My thesis work looked at the role of soil microbial communities and enzyme activity response in stormwater green infrastructure bioswales... Read More →
Sunday November 16, 2025 2:20pm - 3:20pm MST
Great Hall
 
Monday, November 17
 

9:00am MST

Panel | At Water's Edge: Searching for Solutions at the Great Salt Lake's Sister Lakes Across the Great Basin
Monday November 17, 2025 9:00am - 10:00am MST
Watch this panel discussion on YouTube

The Great Salt Lake has shrunk to the lowest levels ever recorded. Utah's journalism community has responded by combining resources to cover the story together as the Great Salt Lake Collaborative. Newsrooms that normally compete are sharing stories about the lake—and embarking on joint reporting projects to discover what solutions exist to the problem of drought, climate change, and over consumption of water in the West. A team of reporters from the Collaborative recently traveled to California to learn how communities around Owens Lake and Mono Lake responded to the crisis facing those lakes. Loss of in-flows turned Owens Lake into a dust bowl and the largest source of dust pollution in the United States. Mono Lake faced the same fate until a nonprofit secured its right to exist.

The panel will cover what the reporters learned about how Utah could mitigate dust from Great Salt Lake's dry lakebed, the lessons Utah could learn from the legal fight for Mono Lake, and how the communities around Owens Lake and Mono Lake are finding solutions to mitigate the loss or reduction of those lakes. How (if) we can apply the lessons learned in California, what the obstacles might be here in Utah, and potential solutions as we grapple with the shrinking Great Salt Lake.

Learn more in the Great Salt Lake Collaborative's "At Water's Edge" story map, which illustrates the challenges at Owens and Mono lakes and how they can inform the future of the Great Salt Lake, as well as the full series of articles and reporting.
Moderators
avatar for Doug Fabrizio

Doug Fabrizio

RadioWest Host/Executive Producer, KUER
Doug Fabrizio has been reporting for KUER News since 1987, and became News Director in 1993. In 2001, he became host and executive producer of KUER's RadioWest, a one hour conversation/call-in show on KUER 90.1 in Salt Lake City. He has gained a reputation for his thoughtful style... Read More →
Speakers
avatar for Laura Briefer

Laura Briefer

Director of Salt Lake City Department of Public Utilities, Salt Lake City Department of Public Utilities
Laura Briefer is the Director of Salt Lake City Department of Public Utilities (SLCDPU). She has served as Director of SLCDPU since 2016. Laura has worked at SLCDPU for 16 years in various areas of the organization and has devoted a 29-year career in natural resource, environmental... Read More →
avatar for Leia Larsen

Leia Larsen

Land and Water Use Reporter, The Salt Lake Tribune
Leia has covered the Great Salt Lake and its decline since 2014, when she first visited Gunnison Island and wrote about land bridges posing a threat to nesting birds. She has also investigated a proposed landfill still trying to bring out-of-state waste to Promontory Point on the... Read More →
avatar for Amy Joi O'Donoghue

Amy Joi O'Donoghue

Multi Media Journalist, Deseret News
Amy Joi has been in the profession of reporting for more than 30 years and has spent the last 12 years writing about the environment, including the Great Salt Lake. She is the recipient of the American Association for the Advancement of Science, an international award for reporting... Read More →
avatar for Steve Clyde

Steve Clyde

Vice President, Director and Shareholder, ClydeSnow
Throughout his career, Mr. Clyde has specialized in natural resources law, including oil and gas, public land law, and mining law, with a primary emphasis in water law. Mr. Clyde has represented many clients in the buying and selling of water rights and in the conversion of water... Read More →
avatar for Joel Ferry

Joel Ferry

Executive Director, Utah Department of Natural Resources
Joel Ferry was appointed DNR executive director in June 2022 by Gov. Spencer J. Cox. (He was formally confirmed by the Utah Senate Sept. 21.) He leads an agency of about 2,000 employees from eight divisions and two offices, including Forestry, Fire and State Lands; Oil, Gas and Mining... Read More →
avatar for Manuel Rodriguez

Manuel Rodriguez

Videographer, Fox 13 News
Manuel Rodriguez is a Special Projects photographer at Fox 13 News and has been with the station for the last 10 years. He primarily focuses on producing long form story content for the station, which is a newer role he decided to take on. Rodriguez got his start in television in... Read More →
Monday November 17, 2025 9:00am - 10:00am MST
Great Hall

11:10am MST

Great Salt Lake Basin Study
Monday November 17, 2025 11:10am - 11:40am MST
GSL is shrinking and the water users throughout the basin are struggling. A comprehensive supply-demand study of the entire GSL basin has never been accomplished so the Utah Division of Water Resources, USBR and water users have applied to do a basin study to provide the information necessary for sound decision-making.

This year the United States Bureau of Reclamation (USBR) has WaterSMART funding available through the Basin Study program for the first time in 5 years. In partnership with water conservancy districts, water users associations, irrigation companies, universities and environmental advocate groups throughout the basin, the Utah Division of Water Resources has applied for a basin study. Basin Studies are collaborative planning efforts cost-shared with non-Federal partners to first assess water supply and demand, then identify strategies to address imbalances. This would be an enormous task, never before undertaken but such a study must be done because only collaborative efforts can attain meaningful solutions to a sickening lake and reduced water supply. Water resource management in the GSL Basin is complex, collective effects on the lake from upstream activities are poorly understood, and upstream water users struggle to understand how best to mitigate adverse impacts to GSL while meeting the needs of water users, making it a perfect basin for this type of study. Attendees will learn what the study would entail and how it would be helpful for water management and policy in the GSL basin.
Speakers
avatar for Jake Serago

Jake Serago

Water Resource Engineer, Utah Division of Water Resources
Jake is a water resource engineer with 10 years of professional hydrologic and hydraulic modeling experience. Driven by his deep connection to the element, Jake chose water resources as a career because of the magical quality of water to sustain life. In his work at the Utah Division... Read More →
Monday November 17, 2025 11:10am - 11:40am MST
Lower Level - Ballroom C

11:10am MST

The Great Salt Lake Open Toolbox: Immediate Solutions to Save the Lake
Monday November 17, 2025 11:10am - 11:40am MST
In this workshop we showcase the tools available to residents of the Great Salt Lake watershed to stabilize plummeting levels of the American West’s largest lake. The Great Salt Lake Open Toolbox is a collection of immediately implementable strategies and policies which offer us a suite of solutions to save the Lake.

Public concern about the ailing Great Salt Lake has reached new heights as the Lake dropped to a record low level for the second year in a row as a function of climate change and its shrinking of our snowpacks. News outlets around the globe reported on the crisis, garnering international attention for our capital city’s namesake. The silver lining of this unfolding environmental crisis at the Great Salt Lake is that Utahns from all walks of life are eager to learn about what can be done to save the Great Salt Lake in the face of climate change. A range of stakeholders and members of the public have used public forums, op-eds, official meetings, social media and a litany of other avenues to plead with others to solve the problem. This echo chamber has created momentum, and millions of Utahns are eager to get involved and be part of the solution to protect the American West’s largest lake from shrinking further. While nearly everybody agrees that we need to save the Lake, there isn’t much consensus on the best way to achieve that. What is the best way to keep water in the Great Salt Lake?

In this presentation, we open and unpack the tools available to save the Great Salt Lake and showcase which options have the potential to truly stabilize the water levels of the American West’s largest lake. We will explore which tools are ready to be implemented, what barriers there are to using other tools and how much water the Great Salt Lake really needs to sustain our people, our wildlife and our economy. The Great Salt Lake Open Toolbox has been assembled by studying the lessons learned from other western cities and states that have managed to protect their local aquatic landscapes. While no one tool may be a silver bullet for all the Lake’s problems, smart implementation of several tools at once could be a ‘silver buckshot’ to restore this vital aquatic ecosystem and the economy it supports.

This workshop explores what it means to save the Great Salt Lake by utilizing a collection of strategies and policies to get more water to the lake. We will unpack how each tool can contribute toward a sustainable paradigm for the Lake and its needed water budget. This workshop is jam-packed with solutions to save the Great Salt Lake and participants will leave inspired in the knowledge that there are tools to ensure we scan ustain the Lake for generations to come.
Speakers
avatar for Zach Frankel

Zach Frankel

Executive Director, Utah Rivers Council
Zach Frankel received his B.S. in Biology at the University of Utah and is the Executive Director of the Utah Rivers Council, which he founded in 1994. Zach has led many exciting campaigns to protect Utah’s rivers and is an expert on water policy in Utah. Zach lives with his family... Read More →
avatar for Nick Halberg

Nick Halberg

Research & Policy Analyst, Utah Rivers Council
Nick Halberg received an honors B.S. in Economics with an emphasis in statistical analysis and a B.S. in Philosophy of Science from the University of Utah. Nick focuses on researching various scientific topics associated with water policy—from hydrology to economics—and translating... Read More →
Monday November 17, 2025 11:10am - 11:40am MST
Lower Level - Ballroom A/B

2:00pm MST

Long-term Variability in Great Salt Lake Volume
Monday November 17, 2025 2:00pm - 2:30pm MST
Linking how annual variability in climate drives 2-3 year changes in streamflow, resulting in a multi-year response of GSL volume.

When in drought, it is especially pertinent to understand how much water is available, where it is available, and when it will be available for down-stream water users and for ecological impacts on large scale ecosystems such as Great Salt Lake (GSL). Headwater catchments are the primary water suppliers and storage regions for Great Salt Lake water supplying tributaries. These catchments hold snow at high elevations and release that snowmelt as seasonal providers to seasonally recharge Great Salt Lake. Along with seasonal controls from snowmelt, headwater catchments hold water within the catchment subsurface and slowly release water throughout the dry season and into the following subsequent years, buffering lake levels even during low snow years, or exacerbating reductions in streamflow input when catchment storage is below average. This project addresses the challenge of predicting Great Salt Lake levels, and begins to address the upstream processes that lead to high or low GSL levels. Using over 118 years of historical streamflow and climate data in 10 headwater tributaries to the Jordan River and Weber River (both terminating in GSL), we identify a surprising multi-year periodicity in headwater catchment storage. This multi-year periodicity of high and low storage in the headwaters is positively related to 3-4 years of antecedent precipitation, and 2-3 years of antecedent seasonal melt rate. The previous year’s temperature is negatively related to catchment storage, suggesting that in in warmer years, headwater storage is depleted. We also find that catchment storage is directly related to GSL elevation, where high storage results in high GSL lake level, and low storage results in low GSL elevation, there seems to be a 2–3 year lag time in this relationship, suggesting that headwater catchments storage may respond at a faster time scale (1-4 years) to snowpack and temperature variability, but GSL may respond to climate patterns over a longer timescale. These findings suggest that GSL is controlled by multi-year climatic patterns that first control streamflow totals in headwater catchments and subsequently control how much water is available for runoff into GSL.
Speakers
avatar for Meg Wolf

Meg Wolf

PhD Candidate, University of Utah
My name is Margaret "Meg" Wolf, and I am currently a PhD Candidate in Geology and Geophysics at the University of Utah. I recently completed my MS in Geology and Geophysics, with a focus in Hydrology and Water Resources. My work focuses on how groundwater storage in snowpack dominated... Read More →
Monday November 17, 2025 2:00pm - 2:30pm MST
Lower Level - Ballroom C

2:00pm MST

Particulate Pollution Contributes Metals to Dust in Northern Utah
Monday November 17, 2025 2:00pm - 2:30pm MST
With Great Salt Lake dessication, Northern Utahns have expressed worry about the effects of dust storms on air quality and health. We present dust flux and geochemistry data for the Salt Lake Valley, and investigate possible sources of specific metals within dust, as well as the current limitations of environmental health evaluations of dust.

The Salt Lake Valley, UT, USA, home to more than 2 million people, is situated proximal to the drying Great Salt Lake and to the east of other dry playas. Prior work has found that these playas contribute dust to snowpack in the Wasatch and Uinta Mountains to the east of the cities, and that dust contain high relative abundances of trace metals like Pb and Cu. However, no prior study has characterized the contributions of geogenic dust and industrial particulate pollution to communities along the Wasatch Front. In this study, we analyzed the dust deposited in 18 passive samplers positioned near the Great Salt Lake, Ogden, Bountiful, the Salt Lake Valley, and Lehi for total dust flux, the < 63 μm dust fraction, 87Sr/86Sr, and trace element geochemistry. We observed the highest dust fluxes at wealthy exurban sites near the western boundary of the urban area. Within the urban corridor, strontium isotope ratios and the spatial distribution of trace elements suggested that Great Salt Lake playa dust contributes only a small amount of material to dust in urban areas. Instead, based on the < 63 μm dust fraction, our results suggest the contributions of local soil disturbance. In our data, many trace metals exceed EPA Regional Screening Levels for soil (As, Co, Cu, La, Li, Mn, Ni, Tl, and U) and exhibited enrichments relative to both upper continental crust and playa dust collections. This suggested the direct contribution of particulate pollution via industries like Cu mining, concentrating and smelting, and oil refining, as well as historical pesticide and herbicide applications. Bulk ‘priority pollutant’ relative abundances did not track income, race or ethnicity demographics. However, certain elements (As, V) indicated a statistically significant positive correlation with income, whereas Pb, Tl and Ni indicate enrichment in the least wealthy and least white neighborhoods. Findings from this study suggest the importance of understanding constituent-specific loadings from particulate matter and dust in urban areas influenced by industry.
Speakers
avatar for Annie Putman

Annie Putman

Hydrologist, USGS
Annie recieved her PhD from the University of Utah department of Geology and Geophysics in 2019, and has been working at the USGS Utah Water Science since then. Annie specializes in stable water isotope systematics, back trajectory analyses, and synthesizing disparate datasets to... Read More →
Monday November 17, 2025 2:00pm - 2:30pm MST
Lower Level - Ballroom A/B
 
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