2017 Colorado Bar Association, Environmental Section

Mr. Gary Vanderslice was asked to present at a monthly meeting of the Environmental Section of the Colorado Bar Association on the topic of "3D Models for Contaminant Migration and Basin-wide Flow Modeling." Two vastly different case studies were presented to demonstrate 3D modeling tools used to generate a simple visualization model for a typical contaminant spill vs a much more complex 3D flow model involving thousands of wells. The contaminant spill case study shows preferential contaminant migration in sandstone from a single slug release from a tank battery. Mr. Vanderslice gave a "live software demonstration" of the model to discuss the components which allowed for meaningful interpretations regarding plume movement. The basin-wide geologic case study was for a multi-year development of a 3D basin-wide flow model in a complex hydrogeologic setting to support cost-recovery, remedial actions, and future ground water management in the basin.  The videos used in this presentation can be found on www.youtube.com/lytlewater.

2016 Commercial Real Estate Marketing Network

Mr. Bruce Lytle was an invited speaker at a monthly meeting of commercial brokers, providing a presentation entitled "Basic Principles of Colorado Water Law and Water Rights Valuations." This presentation focused on the fundamental principles of Colorado water law and issues to be aware of when selling or purchasing water rights. The factors that are important in valuing water rights was also discussed.

2016 GSA Annual Conference

Ms. Sophia Lee gave a presentation on “Difficulties in Modeling Systems with Extreme Climate Records: Is a Model of a Groundwater System During a Drought Unrepresentative or Conservative?”. This presentation focused on the problems often faced by ground water modelers when determining the correct amount of detail to build into a simulation when addressing questions posed by the client. Using a basin east of Denver as a case study, Ms. Lee described three separate potential model designs, their resulting modeled impacts on the system, and addressed how each of the three models presented - though similar in design — answered different potential questions posed by a client.

2016 KW Commercial Real Estate - Bruce Lytle

Mr. Lytle was an invited speaker at a Keller Williams weekly meeting of commercial brokers, providing a presentation entitled "Basic Principles of Colorado Water Law and Water Rights Valuations." This presentation focused on the fundamental principles of Colorado water law and issues to be aware of when selling or purchasing water rights. The factors that are important in valuing water rights was also discussed.

2016 KW Commercial Real Estate - Gary Vanderslice

Mr. Vanderslice was an invited speaker at a Keller Williams weekly meeting of commercial brokers, providing a presentation entitled "Environmental Due Diligence." where Mr. Vanderslice discussed the need to understand environmental liability when selling or purchasing real estate. Mr. Vanderslice discussed the scope and purpose of Phase I and Phase II due diligence procedures. There is no "one-size-fits-all" approach for assessments, as one must consider what constitutes an “appropriate level of inquiry” for each particular site. For sites having a complex history involving chemicals of concern, an experienced team (environmental attorney and technical consultant) can help identify and manage liability risks by considering factors such as: the regulatory agency(s) involved, release date(s), future use(s) of the site, offsite contaminant migration, nearby uses of water resources, legal tools available, and engineering controls/institutional controls available to manage the risks.

2015 Cherry Creek Stewardship Conference

Mr. Lytle was an invited speaker at the 17th Annual Cherry Creek Stewardship Conference, providing a presentation entitled "Rueter-Hess Reservoir Update:  That "Other" Influential Reservoir in the Cherry Creek Basin." This presentation focused on an update of Rueter-Hess Reservoir and the influences its operation is going to have on Cherry Creek hydrology, both related to integration into Parker Water and Sanitation District's water supply system and as a regional water management structure for other water providers in the Upper Cherry Creek Basin.

2015 CWWCA Annual Conference

Mr. Vanderslice gave a presentation on "Practical Resources to Access Water Quality Data" to approximately 200 water well contractors at the the Colorado Water Well Contractors Association conference in Denver on January 9, 2015. It is not widely known in the industry, but Rule 10 of the Colorado Water Well Construction Rules requires that contractors investigate and become familiar with the geology of potential aquifers and known contaminated water-bearing zones, anticipate water quality problems, seal off known sources of contaminants, and advise the well owner that known zones of poor quality water may be penetrated by the borehole in the production zone of the aquifer. However, even though this rule requires extensive water quality knowledge by the contractor, a statewide comprehensive water quality data collection program does not currently exist. Therefore, Mr. Vanderslice conducted a live online demonstration of several accessible data source websites which interested parties can use to research ground water quality issues throughout Colorado to assist with meeting the requirements of Rule 10 and to gain general knowledge of water quality in the vicinity of wells being drilled.

2014 ASCE Presentation

Mr. Lytle was an invited speaker at the ASCE Environmental & Water Resources Institute November 2014 meeting, and made a presentation entitled "ASR Technologies: Opportunities and Limitations." Mr. Lytle's presentation focused on his extensive experience with aquifer storage and recovery (ASR), both in the Denver Basin bedrock aquifers and in alluvial aquifer systems. Mr. Lytle provided information on key parameters to evaluate when assessing if an ASR project will be technically and economically feasible, as well as the institutional issues that will be faced both in permitting ASR projects and in the operations and maintenance of an ASR project. Specific examples of ASR projects which Mr. Lytle has developed, implemented and evaluated were utilized to provide information on the opportunities, but also the limitations, related to ASR.

2014 AWRA Annual Conference

Mr. Lytle made a presentation at the 2014 AWRA Annual Conference in Tysons Corner, Virginia, entitled "Temporal and Spatial Water Management Using ASR." The presentation focused on a basin-wide aquifer storage and recovery project in the Lost Creek Basin, Colorado, that will utilize a large alluvial aquifer system for underground storage, with a large alluvial aquifer well field for recovery of the water during times of need. Based on the areal extent of the storage and the large production capability in the alluvial aquifer well field, this alluvial storage facility will have the capability to meet municipal base demands, peak demands, and/or provide carryover storage for a drought protection supply. The project has been evaluated using a numerical transient ground water model of the entire basin to assess operating parameters and the means to prevent injury to other water rights, but also proposes an extensive water level and water quality monitoring network that will collect pre-recharge data as well as data during recharge and recovery operations.

2014 SDA Annual Conference

Mr. Gary Vanderslice was an invited speaker at the SDA’s 2014 Annual Conference in Keystone on the topic of "The Economic Benefits of Source Water Protection" to an audience of water and sanitation districts and other entities. Presentation topics included: consideration of the value of “services” provided by natural ecosystems for pollutant removal and filtration, methods to value the benefits of protecting source water areas, national and Colorado examples of source water contamination and successful protection programs, technical considerations to identify which contaminants pose a “real” concern, and strategies for engaging stakeholders and obtaining funding for protection programs.

2014 Colorado Rural Water Association Conference

Mr. Bruce Lytle was invited to make a presentation at the February 2014 Colorado Rural Water Association conference in Colorado Springs, entitled "Basic Principles of Colorado Water Law and its Application to Water Supply Development." The presentation focused on an explanation of various aspects of Colorado Water Law and water rights, and ways in which water rights affect how municipalities and special districts develop water supply systems. Mr. Lytle's presentation also addressed means to manage water supplies and water supply wells.

2014 Colorado Rural Water Association Conference

Mr. Gary Vanderslice was invited to speak to a large group of public water system operators on the "Fundamentals of Well Design, Installation and Rehabilitation" at the Colorado Rural Water Association's annual conference in Colorado Springs. Mr. Vanderslice's presentation covered topics including: aquifer properties and ground water migration; researching existing well records; selection of drilling methods based on the formation type, depth, and borehole diameter requirements; sizing of casings and screens considering tensile/collapse strengths, corrosion, and gravel pack; design of gravel pack and grout based on the formation characteristics; downhole logging methods for geophysical, mechanical, and video needs; the critical importance of well development and aquifer testing; and well rehabilitation methods such as jetting, bruching, and chemical treatment.

2013 Cherry Creek Stewardship Conference

Mr. Lytle was an invited speaker at the 15th Annual Cherry Creek Stewardship Conference, presenting new water management strategies potentially being implemented in the Upper Cherry Creek Basin by basin water providers. Mr. Lytle's presentation, entitled "Regional Water Supply Update: On the Cutting Edge of Water Development Strategies," focused on new water management strategies designed to maximize beneficial use of in-basin water supplies, as well managing transbasin supplies being brought into the Cherry Creek Basin.

2013 Colorado Foundation for Water Education Tour

Mr. Lytle was an invited speaker at the Colorado Foundation for Water Education's "Linking Land and Water" Tour on September 27, 2013. Mr. Lytle's presentation, "Water Supply Planning Integrated with Land Use Development," focused on how long-term water supply quantity, quality, and dependability are addressed through Douglas County land use regulations. Mr. Lytle originally assisted Douglas County in the development of its water use regulations.

2013 Environmental Due Diligence Presentation

Mr. Gary Vanderslice was invited to present an "Environmental Due Diligence" overview to groups of attorneys, real estate, and environmental professionals. Varying scenarios and investigation methods were presented for industrial, commercial, and agricultural properties. Mr. Vanderslice discussed the process and options for conducting environmental due diligence assessments, interpretation of the assessment findings, and considerations for managing and mitigating potential risks.

2013 AWRA Summer Specialty Conference - Agricultural Hydrology

Mr. Bruce Lytle made a presentation at the March 2013 AWRA conference in St Louis, Missouri, entitled "Can Agricultural (Rural) Economies be Sustained in the Face of Municipal Water Supply Pressures?" The presentation focused on the ongoing research being conducted by Colorado State University scientists and economists on viable alternatives to the practice of "buy and dry" to make municipal water supplies available from previously-irrigated lands. Lytle Water Solutions is serving as the technical liaison to the Parker Water and Sanitation District in evaluating the means to provide technically-defensible changes of use and to assess economically-feasible means to transport the water to the Front Range of Colorado.

2012 SDA Annual Conference

Mr. Lytle was an invited speaker at the September 2012 Special District Association conference in Keystone, Colorado, presenting on "What are the Options for Future Water Supplies along the Front Range?" Mr. Lytle's presentation first identified the water supply issues facing Colorado based on its growing population, and then focused on the various water supply options available to meet Colorado's growing water demand needs into the future. Mr. Lytle's presentation addressed conservation and reuse, as well as the development of new water supplies and the conversion of existing supplies to different uses to meet Colorado's needs.

2012 - 30th Annual American Bar Association Water Law Conference

Mr. Lytle was an invited speaker at the February 2012 ABA conference in San Diego, California, presenting on "Surface Water Hydrology." Mr. Lytle was asked to provide the basic principles of surface hydrology for water and environmental attorneys to provide a better understanding that would afford practitioners and opportunity to deal with increasingly complex hydrologic issues that may lead to acceptance, rejection, or modification of determinations affecting clients.