Watershed Symposium 2024

Summary:
This presentation will feature how engineers can help shape a more resilient future leveraging new perspectives and technologies.  Topics include watershed vulnerability assessments, innovative filtration media for stormwater quality treatment, aquifer storage and recovery, and how to leverage socio-economic census data in project prioritization.

Full Abstract:
Water scarcity, water quality impairments, aging infrastructure, a changing climate and the vulnerable populations that will experience all these challenges weigh heavily on the minds of environmental decision-makers these days.  It can be overwhelming to know where to start to help make our watersheds resilient. Fortunately, engineers and scientists have some powerful tools in their resiliency toolbox! This presentation will cover examples of how engineers can help shape a more resilient future,  covering how to leverage new information to help plan and prioritize, new technologies that create better resiliency opportunities, and some new ways of looking at old practices that still stand the test of time. The topics in this presentation will be a “sampler pack” of resiliency tools, including watershed vulnerability assessments for project prioritization, innovative filtration media for stormwater quality treatment, and aquifer storage and recovery.  In addition to providing project examples from Utah and elsewhere in the United States, this presentation will outline ways that today’s practitioners are using census data to incorporate socio-economic considerations into decisions about what to implement first, and where.

Summary:
The H2Oquirrh Vision Plan harnesses attention on the Oquirrh range’s washes and creeks and channels it into impactful improvements that have both environmental and community benefits. This talk will present the final version of the study, focusing on the vision, goals, and strategies that will steer the implementation of the plan.

Full Abstract:
There is heightened attention on water in the Great Salt Lake Basin, with dwindling water resources and a shrinking lake making national news. Drought has caused intermittent streams to have longer dry periods and changes in stormwater runoff have exacerbated issues with water quality and flooding. During this session, we will share the vision, goals, and recommendations developed for H2Oquirrh, a comprehensive vision plan for the waterways of Southwest Salt Lake County and the Oquirrh Mountain Range. The H2Oquirrh Vision Plan is an opportunity to harness attention on critical natural resources and channel it into impactful improvements that have both environmental and community benefits. It is one of the first plans to facilitate collaboration across jurisdictions with the goal of preserving open space, supporting natural hydrology, and connecting people to the outdoors in creative ways. The creeks and washes in the Southwest portion of the Salt Lake Valley, including Bingham, Rose, Midas, Butterfield, and Barney’s, Juniper, Wood Hollow, and Beef Hollow, have received less attention than the creeks flowing out of the Wasatch Range. Originating in the Oquirrh foothills, these waterways are significant environmental and natural systems that provide community benefits. Bringing attention to these creeks through the H2Oquirrh Vision Plan presents an exciting opportunity to build community-led solutions and explore new ways of supporting the interface between cities and their waterways. Over the last year, the project team has pulled topical expert feedback, community inputs, and design and engineering strategies to create a vision plan with a holistic regional approach. The plan identifies environmental, economic, and social goals to guide cities as they plan for future open space and development surrounding the waterways, as well as targeted strategies and actions that can steer implementation of the plan in the next five years. Small steps and grand visions work together to create this vision, with ideas ranging from aquifer recharge and native vegetation enhancement to low impact development (LID) and trail systems to benefit the entire downstream watershed. This talk will present the final version of the study, focusing on the vision, goals, and strategies that will steer the implementation of the plan. The multi-disciplinary presenters will provide a variety of perspectives on what went into the making of this plan.

The poster session is a forum for presenters from around the world to highlight programs and to share successful ideas with colleagues by presenting a research study, a practical problem-solving effort, an innovative program, and more. Poster presentations provide other conference participants an opportunity to quickly and easily become acquainted with a variety of topics.

Summary:
Healthy ecosystems intrinsically reduce eutrophication, ameliorate pollution, sequester water and provide access to biodiversity with all of it's benefits. A binary outlook of what defines nature has limited restoration to untrammeled locations, a stark contrast to where such efforts will have the most benefits.

Full Abstract:
The speaker will make the case for the creation of a new industry to largely replace the landscaping industry: urban native restoration. in turn, the speaker will define the benefits restoration can provide in an urban setting, and some insight into how to affect this change.

Summary:
Great Salt Lake Stormwater Study: Basin-Wide Analysis of Stormwater Flows, Low-Impact Development and Groundwater Contributions developed a water-balance model to explore the impacts of Low-Impact Development (LID) on the Great Salt Lake watershed.

Full Abstract:
This study , completed in 2023, entitled Great Salt Lake Stormwater Study: Basin-Wide Analysis of Stormwater Flows, Low-Impact Development and Groundwater Contributions developed a water-balance model to explore the impacts of Low-Impact Development (LID) on the Great Salt Lake watershed. LID refers to, “engineered systems, either structural or natural, that use or mimic natural processes to promote infiltration, evapo-transpiration, and/or reuse of storm water as close to its source as possible to protect water quality and aquatic habitat.” LID mimics the undeveloped water flows within a watershed which reduces the volume of runoff and the flows through conveyances thereby improving water quality of stormwater. The team performed an integrated water assessment, including quantification of the influence of low impact development practices associated with post-construction retention stormwater permit requirements on runoff to the Great Salt Lake. The project consisted of a literature review, data compilation, and methodology development and implementation that led to development and application of a SWMM model to estimate how future development with and without LID impacts surface water runoff and groundwater recharge in the context of the Great Salt Lake watershed. SWMM model results were used in MODFLOW groundwater models to elucidate both the surface and groundwater paths to Great Salt Lake. This talk will highlight the potential impacts of LID on the Great Salt Lake watershed including surface water and groundwater systems.