Washington Hydrography Framework

PROJECT ASSUMPTIONS

• Partner organizations agree to a unified coding scheme including the LLID as the primary unique identifier, and the EPA River Reach Identifier as the secondary identifier. A new unique coding scheme will not be created.
• An existing Hydrography model will be used - we will start with the Washington Surface Water Information System (WASWIS) but it may be modified or improved where practical.
• Only surface waters will be addressed in the project.
• Standard Framework attributes will be defined for water bodies, water courses, and water points that will support partner needs and basic information or metadata about each feature will tracked.
• All spatial data in the Department of Natural Resources DATA '96 data set will be cleaned and routed and used to populate the Framework database in the initial phase. This data set includes the salt water shoreline from the DNR's Aquatic Resources Division, as well as the swamp and data that will be used for initial Framework data population. The DATA '96 spatial data set represents the most comprehensive state-wide hydrography data in existence for Washington state. It contains those hydrographic features represented on US Geological Survey 1:24,000-scale 7.5-min. quadrangle maps and has been augmented through photogrametric methods to include additional detailed stream features in selected project areas.
• Clear and consistent standard procedures for data clean up will be developed. Implement these standards and/or procedures so that data clean up and inclusion of additional information is repeatable across the different regions of the state.
• Hydrography Framework metadata will be served with the data and some metadata will reside on the clearing house server.
• Build maintenance and update procedures for Framework data to allow for the update and improvement of hydrography data as close to the source as practical.
• The Cadastral Framework Project establishes an Internet presence and leads the effort to create a template for identifying and defining organizational roles and responsibilities that we may or may not chose to modify to work with hydrography.
• The definition of project completion includes: full state coverage, metadata, all attributes (including names), web access (read, update), and routed streams with correct flow.
• The project will implement a phased approach.
• Through a formal arrangement, the Hydrography Framework Project will coordinate with other Framework Projects on an ongoing basis to ensure vertical integration, utilize common maintenance procedures, coordinate distribution location, etc.
• The Hydrography Framework Project will be managed as a set of phased deliverables. Deliverable for each phase will be tested before we move to the next phase.

February 16, 1999