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Draft 10/8/99 <br />III. Comprehensive Resource Database <br />In order to adequately identify and rank sites, a series of mapping coverages are <br />needed to overlay different variables and information on individual sites. The use <br />of Geographic Information Systems (GIS) technology has, in recent years, <br />greatly enabled these abilities to overlay data sets for analytical work. A <br />database is needed to accomplish the tasks of this program. <br />A. How the Database Would Be Created <br />In the .past decade, a substantial amount of information has been <br />created and/or purchased for the. County's GIS system. Beginning <br />with mapping coverages for the 1988 Inventory. of Natural Areas <br />and Wildlife Habitats, the County has incorporated into its GIS. <br />system. a great deal of information relevant to the preservation of <br />resources. By he sameaoken, .however, there are a number of <br />gaps and data management issues that must be addressed for the <br />database to be truly comprehensive. <br />B. Listing of Existing Coverages <br />To date, the following environment and resource-related coverages <br />exist in the ERCD GIS system. A more complete inventory is <br />' included as Appendix ]. <br />- Watersheds - Hazardous disposal sites <br />Geology - Hazardous waste facilities <br />- Floodplains - Hydrology <br />- Wetlands - Hydrogeology <br />- Prime farmland ` - -New wells (since 1996) <br />- Steep slopes - NPDES sites <br />- Soil limitations -septic systems - Quarries <br />- .Soil limitations -dwellings - Petroleum contaminated soils <br />- Vegetation - National Register nominations <br />- .Natural areas and wildlife - Potential land acquisition site maps <br />habitats - Water quality monitoring sites <br />- Wildlife corridors - St. Mary's Road Study architecture and <br />- Historic sites archaeology <br />- Archaeological remains - Superfund sites <br />- Recreation sites - Underground petroleum tanks. <br />- _ Scenic roads - Utility transmissions lines <br />- Development constraints - Wastewater systems (public and <br />- Comprehensive Resource map community) <br />- Biosolid (sludge) sites - Prime forests coverages (TLC - 1996) <br />- Businesses on ground water - Wildlife .Rating system (TLC report 1999) <br />- Community water supplies <br />- Golf courses <br />12 <br />