The majority of the supplemental elements aided in describing the methods and errors associated with data gathering techniques. Additionally, some fields were developed that specifically relate to this project. Appendices B & D detail the structure of the two tables with Appendices C & E describing each field's significance and associated attribute options.
Added fields within the tables are denoted with an asterisk (*) in Appendices C& E. The system table has only one addition being the UW-UPDATE field. The source table has a multitude of changes. The most apparent of these changes is the additional latitude and longitude fields. The original database had a field for degrees, minutes, seconds for both latitude and longitude. For GIS conversion however, it was necessary to create a field that had each coordinate in decimal degrees. This allowed for the source table, the decimal degrees fields specifically, to be used in creating a spatial database. One other notable field is the REASON code which describes why the groundwater source was not located during this project or if it was a new source not listed in USEPA's database.
96-13 Table of Contents
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