City and County of Honolulu: Data contained in these files or on this Web page is the property of theCity and County of Honolulu, Hawaii (City). The GIS data are proprietary to the City, and title to this information remains in the City. All applicable common law and statutory rights in the GIS data, including, but not limited to, rights in copyright, shall and will remain the property of the City. Information shown on these maps are derived from public records that are constantly undergoing change and do not replace a site survey, and is not warranted for content or accuracy. The City does not guarantee the positional or thematic accuracy of the GIS data. The GIS data or cartographic digital files are not a legal representation of any of the features in which it depicts, and disclaims any assumption of the legal status of which it represents. Any implied warranties, including warranties of merchantibility or fitness for a particular purpose, shall be expressly excluded.
The original data was created as follows (from the City and County of Honolulu metadata, 1996): Sewer features shown on the various source sewer documents have been drafted onto 200 scale mylars using the City's parcel base maps as a reference. These 200 scale sewer base maps were used to digitize the sewer features into the City's GIS. There were several rounds of data conversion stretching from 1988 to 1995. This effort brought the sewer layer current as of June 1993. GIS related attributes are stored in Arc/Info, with the majority of the sewer physical attributes stored in an Oracle database utilizing a component key to tie all features in the GIS to its related attributes in the Oracle tables. The City is currently proceeding with another round of data conversion to bring the sewer layer current as of December 1995. This round of data conversion will not utilize the previous methodology of redrafting sewer features onto 200 scale maps, instead digitizing will occur directly from the construction drawings, typically set at 40 scale. Revisions: new sewer construction is completed and inspection drawings are received, the sewer features and attributes will be entered into the GIS and Oracle database. The process of entering new sewer features includes rigorous quality control checks throughout the various stages of data entry. At times operations and maintenance crews in the field will identify errors in the existing sewer layer. These corrections are transmitted to appropriate GIS personnel in the wastewater department for correction to the sewer layer. Notes: sewer layer is currently undergoing verification of data entered during the 1989 to 1995 data conversion effort. This verification process of comparing plots of the sewer layer against source documents will be ongoing over the next few years.