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• Phase 2 is expected to require approximately two years and will focus on water budget <br />modeling, consumptive use modeling, enhancements to the groundwater model for the <br />Denver Basin and Overlying Alluvium Region, and surface water modeling. This phase <br />will begin after completion of Phase 1. <br />• Phase 3, the final phase, is expected to require approximately three years and will include <br />final surface water modeling and development of a groundwater model for the Lower <br />South Platte Alluvium Region. <br />As described above, Phase 1 allows basic water resources data to be developed, reviewed and <br />disseminated to the public before any significant modeling occurs. In addition, it allows cost <br />effective water administration activities to be implemented as quickly as possible. Phases 2 and <br />3 include the addition of various modeling tools that will utilize new and existing data in order to <br />perform the complex water resource analyses identified in the Needs Assessment in Chapter 2. <br />OPERATION AND MAINTENANCE <br />Operations and maintenance is important for any decision support system to ensure continued <br />use and applicability of the decision support system. Adequate operations and maintenance of <br />the SPDSS will benefit both the State and water users by helping to ensure up-to-date databases <br />and components which are applicable to resolution of future problems. Operation and <br />maintenance costs for the SPDSS have been estimated for the period during SPDSS development <br />and the post-development period. Estimated operation and maintenance costs required during <br />system development are included in the project costs outlined above. <br />The estimated operation and maintenance costs associated with the recommended Alternative 2 <br />level of SPDSS after implementation is completed include a mixture of contract labor and three <br />full-time employees (FTEs) of the State of Colorado at an approximate cost of $420,000 per <br />year. The required full-time employees include: <br />• One water resource modeler to maintain and apply the consumptive use, water budget, <br />groundwater and surface water models. In addition this employee will be responsible for <br />conducting annual training sessions on key components of the system. <br />One GIS and water resource modeling expert responsible for updating the irrigated <br />acreage data at a five-year frequency and assisting in the maintenance and application of <br />the consumptive use, water budget, groundwater and surface water models. <br />One FTE responsible for (1) managing the observation and publication of the new <br />groundwater level monitoring stations, and (2) maintaining the Colorado Water <br />Administration Tool, database, network, personal computers and web site. <br />The existing operation and maintenance (O&M) programs associated with the Colorado and Rio <br />Grande decision support systems have been requested as a standard line item of the long bill <br />from the general fund. However, a legislative subcommittee has directed the operation and <br />maintenance of the existing DSS programs be paid approximately 50 percent from the general <br />fund and 50 percent from the CWCB construction fund. A request to fund 100 percent of the <br />p:Adata\gen\spdss\final report\executive summary.doc E'-9 <br />October 31, 2001 <br />