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.
Mr. Joe Meigs was an invited panelist to the Colorado State University (CSU) community panel discussion entitled “Water in Our Future.” Mr. Meigs was one of four panelists that included Justice Gregory J. Hobbs, Jr., Colorado Supreme Court; Jeni Arndt, Colorado House of Representatives, District 53; and Reagan Waskom, Director, Colorado Water Institute. Gene Kelly, Deputy Director of CSU's Agriculture Experiment Station and CSU Extensions was the moderator for the event.
The panel discussed critical water issues affecting people in the state of Colorado and along Colorado’s Front Range. Mr. Meigs’ presentation and subsequent panel discussion provided information to the audience to help them understand aquifer storage and recovery (ASR), a proven technology, as an alternative solution to the issue of water storage in both alluvial and deep basin aquifers along Colorado’s Front Range.
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.
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.
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.
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.
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.
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.
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.
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.
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.
A feature article by Mr. Gary Vanderslice titled "Can You Afford to Let Your Drinking Water Supply Become Contaminated?" was published in the Special District Association of Colorado's April 2014 magazine. Mr. Vanderslice's article presents a synopsis of source water protection principles to safeguard community drinking water supplies, and it promotes proactive measures in order to delay costly reactive spending. The article discusses contamination events and frequent contaminant sources, source water areas particularly vulnerable to pollution, the outlook for the future, and an outline of measures for implementing a sensible source water protection program. Mr. Vanderslice's knowledge in this area is a result of thousands of hours experience identifying pollution risks and leading Colorado communities in establishing protection programs.
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.
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.
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.
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.
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.
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.
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.
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.
Mr. Lytle was an invited speaker to participate in a panel discussion at the Colorado Ag Water Alliance's annual summit on the barriers to alternatives to agricultural water transfers. Mr. Lytle discussed issues surrounding developing sufficient technical data to support change of use proceedings in water court.
Mr. Lytle was an invited speaker at the annual watershed conference in Parker, Colorado, and made the presentation "Water Supply and Demand Changes in Cherry Creek and Implications for Water Supply and Water Quality Management." Mr. Lytle described water supply versus demand issues in the Cherry Creek Basin; i.e. greater demand than available supply and how urbanization has affected the hydrology and water quality of the Basin. Integrated water management solutions were presented to address these issues.
Mr. Bruce Lytle made a presentation at the June 2011 AWRA conference in Snowbird, Utah, entitled "Making the Most of Extremely Limited Water Supplies: The Cheyenne BOPU Municipal Water Supply System." The presentation focused on Lytle Water Solutions' pilot study of aquifer storage and recovery (ASR) technologies to assist the City of Cheyenne, Wyoming, with alternatives to make its ground water supplies more sustainable through artificial recharge. The methodologies used and the results of the pilot study were presented.
Mr. Hayden Strickland made a presentation at the AWRA conference in Snowbird, Utah, entitled "CoHySt 2010: A Tool for Regional and Integrated Management." The Cooperative Hydrology Study is a surface water/ground water model of the Platte River in Nebraska that has evolved over time to become a water management tool and to assist with implementation of the Platte River Recovery Program. Mr. Strickland explained changes in the model and how the objectives of CoHySt are being met.
Mr. Lytle was the invited speaker at the January 2011 Colorado Ground Water Association meeting. Using his comprehensive knowledge of aquifer storage and recovery (ASR), including 6 years of research on the Denver Basin Aquifer Recharge Demonstration Project, Mr. Lytle presented his views of the role of ASR, both historically and into the future, in the Denver Basin. Mr. Lytle's presentation "What Is The Future Of ASR In The Denver Basin Aquifers?" can be viewed here.
Colorado State University and Parker Water and Sanitation District have been collaborating since 2006 on research investigating viable techniques related to rotational crop management and more efficient irrigation practices to make historic agricultural water available for municipal purposes, while maintaining a viable rural economy. The research has also involved developing the methodologies to satisfy the requirements of Water Court for a change of use. Bruce Lytle, of Lytle Water Solutions, is the Project Manager for this study. Preliminary results of the research were recently published in Colorado Water, Water-Conserving Cropping Systems: Lower South Platte Irrigation Research and Demonstration Project. PWSD received additional funding for this project on January 25, 2011 from the Colorado Water Conservation Board's (CWCB) Agricultural Transfer Grant fund. This study will be a keystone to successful water management strategies to provide reliable water supplies for both urban and rural interests, and will be the basis for potential Water Court actions to quantify water savings and transferrable consumptive use.
Lytle Water Solutions recently completed a 2-year pilot study, jointly funded by Cheyenne BOPU and the Wyoming Water Development Commission, that evaluated the feasibility of utilizing rapid infiltration basins and/or injection wells to recharge the Ogallala aquifer at the Cheyenne BOPU well fields to enhance their long-term sustainability and reliability. The results of the study, which appear favorable for a full-scale recharge project, were presented to the BOPU at their Board meeting on November 15, 2010: Managed Aquifer Recharge Storage and Recovery Pilot Study Project.
Parker Water and Sanitation District (PWSD) held an Open House at Rueter-Hess Reservoir on Saturday, August 7, 2010. Interested parties were able to go on a 2-mile self-guided driving tour across the dam and into the bottom of the Reservoir which, if full, would be 170 feet below water.
The Purpose and Need for Rueter-Hess Reservoir is to provide a water management tool for PWSD to optimize the use of limited water resources and to provide storage space for new, renewable water supplies that will meet PWSD's future demands.
Lytle Water Solutions assisted the Parker Water and Sanitation District (PSWD) in obtaining a Substitute Water Supply Plan (SWSP) to allow limited storage to begin at Rueter-Hess Reservoir. The SWSP, obtained on May 10, 2010, allows PWSD to store water in Rueter-Hess up to 3,565 ac-ft until construction is complete, anticipated to be in early 2012. PWSD received approval from the Dam Safety Branch of the Colorado State Engineer's Office to begin storing water up to a pool elevation of 6,095 ft MSL on February 22, 2010.
Phase 2 construction began in September 2008 and is expected to be completed in early 2012.
- Phase 2 Reservoir Construction Photos: Show construction progress of Phase 2, from 2008 to 2012.
Photos by Jackie Shumaker Photography.
- Colorado Public Works Journal (Dams & Reservoirs), Volume 6, Issue 3, 2010.
Mr. Bruce Lytle made a presentation on April 13, 2010, entitled "What Is The Future Of ASR In The Denver Basin Aquifers?" at the National Ground Water Association 2010 Ground Water Summit in Denver, Colorado. The presentation used Mr. Lytle's extensive background in Aquifer Storage and Recovery (ASR) research in the Denver Basin as the basis for a presentation of the historical perspective of the objectives of ASR in the 1980s and the early-1990s, when research was first initiated, and how those objectives have evolved as hydraulic conditions in the Denver Basin have changed with time. Mr. Lytle provided his perspective of the future role that ASR will likely play in the Denver Basin aquifers as municipalities seek alternative water supplies to either supplement or replace extensive use of the Denver Basin aquifers.
On March 25, 2010, a coalition of municipal water providers from Colorado and Wyoming announced a joint collaboration to study the feasibility of a major water supply project from Flaming Gorge Reservoir in southwestern Wyoming that will bring renewable water to eastern Wyoming and the Front Range of Colorado. The feasibility study will identify the future needs of the coalition members, the water supply available from Flaming Gorge Reservoir after critical demands are met for environmental flows and power generation, infrastructure alternatives for the delivery of the water, and the capital and operations and maintenance costs for the project. These data will be used by the member water provider organizations to evaluate the feasiblity of the project from each individual community's perspective, and whether the project should proceed to further phases. Mr. Bruce Lytle presented an overview of the scope of the feasibility study at the March 25 announcement, and Lytle Water Solutions will be part of the consultant team conducting the feasibility study, along with States West Water Resources Corporation of Cheyenne, Wyoming and Integra Engineering of Denver, Colorado.
On April 15, 2010, a meeting of the Colorado and Wyoming coalition of municipal water providers was held to kick-off the feasibility study. A presentation of the scope of work for the feasibility study, Flaming Gorge Reservoir Water Supply Project Feasibility Study, was presented by Mr. Lytle of Lytle Water Solutions, Mr. Michael O'Grady of States West Water Resources Corporation, and Mr. Alan Pratt of Integra Engineering.
In August 2009 Mr. Bruce Lytle presented a paper at the 33rd Congress of the International Association of Hydraulic and Engineering Research (IAHR) in Vancouver, British Columbia. The paper, entitled "Integrated Water Management in a Highly Urbanized Basin," described water supply issues in the Upper Cherry Creek Basin, Colorado, a highly over-appropriated basin, and how a cooperative numerical modeling study, led by LWS, developed potential water quantity and quality solutions to these difficult issues. Mr. Lytle's paper was also published in the IAHR's 33rd Congress Proceedings.
Water providers from Colorado and Wyoming met with the Sweetwater County Joint Powers Water Board (JPWB) to open dialogue related to a potential water supply project from Flaming Gorge Reservoir in southwestern Wyoming. Mr. Frank Jaeger of the Parker Water and Sanitation District is leading a team of water suppliers and technical experts, including LWS, in evaluating whether a water supply project is technically, economically and environmentally feasible. This preliminary meeting was covered locally by the Daily Rocket-Miner on June 17, 2009.
Mr. Bruce Lytle presented a paper at the AWRA Spring Specialty Conference in Anchorage, Alaska, co-authored by Mr. Frank Jaeger, District Manager for the Parker Water and Sanitation District, entitled "Managing Water Supplies and Quality in a Highly Urbanized Basin." This presentation described the cooperative basin-wide efforts toward water quantity and water quality management in the rapidly urbanizing Cherry Creek corridor in the southeastern Denver, Colorado, metropolitan area. The principal water supply entities in this basin collaborated on the Cherry Creek Aquifer Modeling Project (CCAMP) to evaluate if there are means to maximize and optimize the limited native renewable resources available in the basin.
In April 2009 Mr. Lytle gave a presentation to the Wyoming Water Law Conference in Cheyenne, Wyoming, discussing water rights and environmental permitting relative to his experience with Section 404 permitting under the Clean Water Act and preparation of Environmental Impact Statements associated with Rueter-Hess Reservoir. The presentation, entitled "Lessons From Parker, Colorado", examined Parker's growth and the need for water management given its current water rights portfolio. These issues led to the need to develop surface water storage, which required Federal permitting of the facility. Mr. Lytle discussed the required Federal permitting process, issues encountered during the permitting process, and the resultant water management strategies that were made possible through the permitting of the Rueter-Hess Reservoir.
The Lytle Water Solutions team has been working with the Central Nebraska Public Power and Irrigation District in the development of numerical models for the Pumpkin Creek and North Platte River watersheds to evaluate the impact of ground water pumping on inflows to Lake McConaughy. On March 13, 2009 Mr. Bruce Lytle made a presentation to Central District Water Users at its annual meeting in Holdrege, Nebraska, entitled "Water Depletions and Allocations in the Nebraska Panhandle's North Platte River Basin" to describe the results of the model related to ongoing impacts to Lake McConaughy inflows and what reductions in ground water pumping would be necessary to produce meaningful restoration of flows to Lake McConaughy. This newsworthy meeting was covered locally by the Kearney Hub and the Omaha World-Herald.
Mr. Bruce Lytle, drawing on his experience from the two EIS's for Rueter-Hess Reservoir, presented the paper "Can Large Water Supply Projects be Built in Today's Climate?" at the 2008 AWRA Annual Water Resources Conference in New Orleans, Louisiana. This presentation touched on issues of growth, water conservation, evaluating the least damaging alternative in the NEPA process, and the importance of publice relations.
Mr. Hayden Strickland, the principal developer of the numerical ground water model for Cherry Creek and its associated alluvial aquifer, presented the findings to date of a collaborative modeling study to maximize the limited water resources of the Cherry Creek Basin among several water supply entities in a talk entitled "Developing a Basin-Wide Water Supply Management Model" at the 2008 AWRA Annual Water Resources Conference in New Orleans, Louisiana.
LWS presented "Fundamentals of Well Drilling & Well Design" at the Wyoming Water Association annual meeting in Casper, Wyoming in October 2008. The presentation explained aquifers in various geologic terranes, the appropriate drilling and well completion methods for different geology, as well as the key elements of well design and the issues and risks associated with drilling projects.
Mr. Lytle, along with Messrs. Frank Jaeger and Jim Nikkel of the Parker Water and Sanitation District, presented the history, permitting, construction, and water management associated with Rueter-Hess Reservoir at the 2008 Colorado Special District Association annual meeting in Breckenridge. The talk was entitled "The Implementation of Parker Water and Sanitation District's Vision for a Sustainable Water Supply."
The Lytle Water Solutions team has provided hydrologic services to the third party consultant, URS Corporation, related to the expansion of Rueter-Hess Reservoir from 16,200 ac-ft to 71,920 ac-ft that has resulted in the issuance of the second Section 404 permit on April 11, 2008. The SEIS also includes regional partners: Castle Rock, Castle Pines North Metropolitan District, and Stonegate Village Metropolitan District. The LWS Purpose and Need Report and SEIS Scoping Summary (large pdf files - may be slow to download), and other related documents, can be viewed at the U.S. Army Corps of Engineers Website, www.nwo.usace.mil.
Construction of the 16,200 ac-ft Rueter-Hess Reservoir was completed in November 2006. Construction on the expansion of Rueter-Hess Reservoir began in September 2008 and is expected to be completed in 2012. Details of the planning and development of Rueter-Hess can be found on these pages:
- Reservoir Evolution: Maps show the planned development from the original design to its current configuration and then to its ultimate capacity. Mr. Lytle selected the reservoir location in 1985.
- Reservoir Features: Shows how water will be routed to and from Rueter-Hess.
- Reservoir Service Area: Location map of the service area delineated in the Rueter-Hess Reservoir Supplemental EIS.
- Reservoir Construction Photos: Show construction progress of Phase 1, from May 2005 to November 2006.
Photos by Jackie Shumaker Photography.
Colorado State University (CSU) and the Parker Water and Sanitation District (PWSD) are beginning the third year of a 4-year research study investigating viable techniques related to rotational crop management and more efficient irrigation practices to make historic agricultural water available for municipal purposes, while maintaining a viable rural economy. PWSD has received funding for this project from the Metro Roundtable and from the Colorado Water Conservation Board's (CWCB) Agricultural Transfer Grant fund. Bruce Lytle, of Lytle Water Solutions, is the Project Manager for this 4-year study. This study will be a keystone to successful water management strategies to provide reliable water supplies for both urban and rural interests, and will be the basis for potential Water Court actions to quantify water savings and transferrable consumptive use.
Mr. Lytle presented preliminary results of the urban-rural water management projects at the 2007 AWRA Annual Water Resources Conference in Albuquerque, New Mexico; his talk was entitled "A Win-Win Scenario for Rural/Urban Water Supplies."
Mr. Lytle, in conjunction with Messrs. Frank Jaeger and Jim Nikkel of Parker Water and Sanitation District (PWSD), and Dr. Neil Hansen of Colorado State University, published a paper, "A Win-Win Scenario for Rural/Urban Water Supplies," in The Water Report (Issue #48, February 2008). This paper describes the results of the irrigation practice research that is ongoing at PWSD's farms in Logan County to evaluate if deficit irrigation practices and/or rotational fallowing can make water available for urban interests while still maintaining farming and healthy rural economies.
Bruce Lytle presented a paper on adaptive water management at the AWRA 2006 Summer Specialty Conference in Missoula, Montana. Mr. Lytle's slideshow presentation, "Conversion of Municipal Water Supplies from Non-Renewable to Renewable Resources," described how the Parker Water and Sanitation District has adapted its water supply from being entirely reliant on non-renewable resources to one that will manage its non-renewable resources through surface water storage and develop renewable water resources from historic agricultural water supplies, using innovative crop management practices.
This presentation was given in conjunction with a presentation by Mr. Frank Jaeger, Parker Water and Sanitation District Manager, entitled "Successful Water Management Strategies." Mr. Jaeger's presentation describes the construction of Rueter-Hess Reservoir and its use as a water management tool, and the urban-rural water model, which seeks to use innovative crop management techniques to make water available to urban communities.
The Lytle Water Solutions team participated in the Division 3 Rules and Regulations trial regarding proposed new water regulations in the Rio Grande Basin. Expert testimony was presented in the areas of surface water hydrology, ground water hydrology, water rights and ground water modeling. The trial lasted six weeks, from January 31 to March 10, 2006; numerous press articles were released throughout the trial proceedings.
Bruce Lytle delivered a presentation on the fate and transport model of the upper Cherry Creek Basin, which is designed to assist in assessing the total maximum annual phosphorus load (TMAL) for Cherry Creek Reservoir. Mr. Lytle oversaw the monitoring of Cherry Creek Basin's surface and ground water flow and water quality for more than a decade. These data are being used in the modeling and TMAL process in which Mr. Lytle is participating as a technical peer reviewer.