These data depict authorized service areas of water utilities in the State of Maine. These data were submitted to the Maine PUC by the various utilities as part of their 2009 reporting requirements under MPUC Rules - Chapter 140.
These data were developed to provide Maine State Government staff with a general overview of each represented utility's authorized service area in Maine. Many of these polygons are not exceptionally accurate (spatially) or are of a somewhat undetermined / ill-defined spatial acuracy, so users of these data are STRONGLY cautioned against using these data for scientific or engineering purposes, or to accurately determine utility service in small areas or at single sites - especially in areas near the boundary(ies) of service areas. An example of an appropriate use of these data would be their inclusion in map products designed as educational tools with which to inform an audience about the existence of, as well as the broad, regional nature of service territories.
This metadata record only describes data submitted by water utilities during the 2009 MPUC Chapter 140 Reporting Cycle.
All data is of 2008 or 2009 vintage, while all analysis and compilation was completed over the time range of 20090501 to 20091130.
None: However users should be sure to read, review and understand the purpose for which these data were created to ensure that the dataset is not misused.
18 State House Station
Amy Spelke is the primary contact for general questions regarding this GIS data layer only. Users with questions about the underlying data should direct their questions to the appropriate utility(s).
These spatial data were submitted by each utility represented in the dataset and were assembled into final form by Steve Harmon under contract to the Maine PUC.
No formal tests were devised for attribute accuracy other than checking transfer of values from the original data sources to the resulting GIS data layers because attribute accuracy was best ascertained by the original contributor (utility) of the source data. See also the Horizontal_Positional_Accuracy_Report.
Logical consistency checks were conducted during preparation of the spatial features and attributes importation / mapping. Other than the addition of the "legend type" field all attributes are the same as the source datasets. However, source datasets may have included additional attribute fields that were not mapped over to this data layer.
This dataset is not complete because not all utilities were required to submit data in 2009 under the requirements of Chapter 140.
Horizontal accuracy varies widely throughout the dataset due to variations in source data accuracy.
N/A
Various water utilities in Maine submitted digital representations of their service areas in a wide variety of formats (GIS and CAD) to the Maine PUC under the requirements of MPUC Rules Chapter 140.
Utilized ArcGIS (ArcInfo License Level) to extract / import these data into a file geodatabase set to the State of Maine's standard geospatial parameters (NAD 83 - UTM Zone 19N - Meters)
Some quality assurance / quality control (qa/qc) work was completed on these data to ensure no obvious problems during data extract / import into the file geodatabase.
Complete metadata.
Metadata imported.
Metadata imported.
Metadata imported.
Internal feature number.
ESRI
Public Utilities Commission Code
Maine Public Utilities Commission
Name of water utility
Maine Public Utilities Commission
Feature geometry.
ESRI
State House Station 174
Users must assume responsibility to determine the usability of this data for their purposes. Although these data have been processed successfully on a computer system at the Maine Office of Geographic Information Systems, no warranty expressed or implied is made by MEGIS regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. Neither the Maine Office of Geographic Information Systems, nor any of its contributors, is liable for misuse of the data, for damage, for transmission of viruses, or for computer contamination through the distribution of these data sets.
ArcView Shapefile Format
MEGIS has made all vector layers, in the Maine GIS Internet Data Catalog, available in ESRI's ArcView shapefile format. A shapefile is a simple non-topological format that stores the geometry and attribute information for a set of geographic features as a set of vector (point, line, polygon) coordinates. Shapefiles draw quickly and directly in ArcView, ArcGIS, ArcExplorer. Shapefiles are a compatible data type for many other types of GIS software. Three files are fundamental to each shapefile: .shp stores the feature geometry (shape and location information); .shx stores the index of the feature geometry; .dbf a dBASE (TM) file stores the attribute information for the features. Other index files may be created to help speed analysis and query: these file formats are .sbn .sbx .ain .aix .fbn and .fbx. In addition you may find projection .prj, and metadata .xml, files associated with shapefiles.
State House Station 174
Users must assume responsibility to determine the usability of this data for their purposes.
Oracle 9i
18 State House Station
e-Mail is the preferred contact method.