Unsewered Communities in Iowa (FGDC) / unsewered_communities (ISO)


FGDC Metadata

Identification Information:
Native Data Set Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000
Description:
Language of Dataset: en
Abstract: The unsewered communities file was originally conceived as a representation of communities without a municipal sewer system or on-site septic systems. The selection of communities was based on criteria established by a committee of DNR staff (Brent Parker, Field Office 5, Todd Bishop, GIS Section and Scott Vanderhart, Director's Office). The committee decided to look for groups of ten houses or more clumped within a 10 acre area which did not fall into an incorporated area. The areas that were detected were characterized into 1 of 2 classes: Officially Named, Unincorporated Towns (from the USGS Geographic Names Information System (GNIS) shapefile) or Unamed but Developed Rural Subdivisions. To attribute the data, the unincorporated GNIS point file was joined with 2000 census data (Population, Median House Income, Housing Units, and Occupancy). For the rural subdivisions, polygons were digitized around these areas in ArcView 3.2a using 2002 color-infrared aerial photography and USGS digital topographic maps (DRGs). A point file was then generated using the polygons' centroids and attributed with the number of visible housing units observed within the corresponding polygon boundaries. The resulting two point files were then merged and the sites were assessed to determine if they had access to a wastewater treatment plant. The polygon and point files were both used as an initial source of locations for potentially unsewered communities. Digital incorporated area files from 1990 census data were used to exclude communities that fell within the boundaries of known incorporated areas. The product of this analysis was then submitted for review to county sanitarians and rural water entities. After receiving their responses, some communities were removed from, and others added to, the initial file. The reviewers also added comments in regard to specific communities.
Purpose: The dataset was developed to assist the Unsewered Community Task Force in prioritizing communities to receive loans to fund the upgrade or installation of sewer/septic systems. This digital, geographically referenced data set was developed by the Iowa Department of Natural Resources to carry out agency responsibilities related to management, protection, and development of Iowa's natural resources.
Citation:
Citation Information:
Originator: IDNR, GIS Section
Publication Date: 20070330
Title: Unsewered Communities in Iowa
File or Table Name: unsewered_communities
Geospatial Data Presentation Form: vector digital data
Edition: 20070330
Online Linkage: ftp://ftp.igsb.uiowa.edu/IA_State/Environmental_Regulation/unsewered_communities.zip
Time Period of Content:
Currentness Reference: ground condition
Time Period Information:
Single Date/Time:
Calendar Date: 2002
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: 202073.808723
East Bounding Coordinate: 736849.210393
North Bounding Coordinate: 48822673.786539
South Bounding Coordinate: 4470598.397186
Local Bounding Coordinates:
Left Bounding Coordinate: 209974.238620
Right Bounding Coordinate: 733333.559129
Bottom Bounding Coordinate: 4475380.814162
Top Bounding Coordinate: 4816760.000000
Keywords:
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: Sewer, septic
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Category
Theme Keyword: environment
Access Constraints: None
Use Constraints: The development of the coverages in the NRGIS Library represents a major investment of staff time and effort. As a professional responsibility, the Iowa DNR expects to receive proper credit when these GIS coverages are utilized. he Department also expects that the original documentation will remain with any redistribution of these coverages.
Native Dataset Format: Shapefile
Point of Contact:
Contact Information:
Contact Person Primary:
Contact Person: Brent Parker
Contact Organization: IDNR
Contact Position: Field Office 5
Contact Electronic Mail Address: Brent.Parker@dnr.state.ia.us
Contact Voice Telephone: (515) 725-0337
Data Set Credit: Todd Bishop, Andy Asell and Kathryne Clark, all of the GIS Section, IDNR.
Security Information:
Security Classification System: State of Iowa Enterprise Data Classification Standard
Security Classification: Public
Data Quality Information:
Completeness Report: File is considered complete.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report: Points reflect the centroid of a community.
Vertical Positional Accuracy:
Vertical Positional Accuracy Report: N/A
Lineage:
Process Step:
Process Description: Original file development: Rural Subdivisions: Step 1: Polygons were digitized using 2002 color-infrared aerial photography and USGS 7.5' DRGs. Step 2: Polygons were converted into a point file utilizing the polygons' centroids. Step 3: For each polygon, the number of houses visible in the 2002 color-infrared aerial photography were recorded in the pointfile table. Step 4: An assessment of the area was made to determine whether a waste-water treatment plant was located on-site. Step 5: Merged with unincorporated town data. Unincorporated, named towns (GNIS) Step 1: All unincorporated, named towns found within a county were joined to 2000 census statistics pertaining to population, median house income, number of housing units, and occupancy. Step 2: An assessment of the area was made to determine whether a waste-water treatment plant was located on-site, or whether the community had been annexed by a larger incorporated area that possessed waste-water treatment facilities. Step 3: Merged with rural subdivision data.
Process Contact:
Contact Information:
Contact Person Primary:
Contact Person: Andy Asell
Contact Organization: Iowa Geological and Water Survey
Contact Position: GIS Analyst
Contact Voice Telephone: 319-335-1578
Contact Electronic Mail Address: andy.asell@dnr.iowa.gov
Process Software and Version: ArcView 3.2a
Source Used Citation Abbreviation: 2002CIR
Source Information:
Source Citation:
Citation Information:
Originator: Iowa Geological Survey, DNR
Title: 2002 Color Infra-Red Aerial Photography
Online Linkage: http://www.igsb.uiowa.edu/nrgislibx/
Source Scale Denominator: 12000
Type of Source Media: digital aerial photography
Source Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 2002
Source Currentness Reference: ground condition
Source Citation Abbreviation: 2002CIR
Spatial Data Organization Information:
Direct Spatial Reference Method: Vector
Point and Vector Object Information:
ESRI Terms Description:
ESRI Feature Type: Simple
ESRI Feature Geometry: Point
ESRI Topology: FALSE
ESRI Feature Count: 606
Spatial Index: FALSE
Linear Referencing: FALSE
SDTS Terms Description:
SDTS Point and Vector Object Type: Entity point
Point and Vector Object Count: 606
Spatial Reference Information:
Horizontal Coordinate System Definition:
Coordinate System Name:
Projected Coordinate System Name: Universal Transverse Mercator, Zone 15
Geographic Coordinate System Name: GCS_North_American_1983
Geodetic Model:
Horizontal Datum Name: North American Datum of 1983
Ellipsoid Name: Geodetic Reference System 80
Semi-major Axis: 6378137.000000
Denominator of Flattening Ratio: 298.257222
Planar:
Planar Coordinate Information:
Planar Coordinate Encoding Method: coordinate pair
Planar Distance Units: meters
Coordinate Representation:
Abscissa Resolution: 0.000000
Ordinate Resolution: 0.000000
Grid Coordinate System:
Grid Coordinate System Name: Universal Transverse Mercator
Universal Transverse Mercator:
UTM Zone Number: 15
Transverse Mercator:
Scale Factor at Central Meridian: 0.999600
Longitude of Central Meridian: -93.000000
Latitude of Projection Origin: 0.000000
False Easting: 500000.000000
False Northing: 0.000000
Entity and Attribute Information:
Detailed Description:
Entity Type:
Entity Type Label: unsewered_communities
Entity Type Type: Feature Class
Entity Type Count: 606
Attribute:
Attribute Label: FID
Attribute Alias: FID
Attribute Type: OID
Attribute Width: 4
Attribute Precision: 0
Attribute Scale: 0
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: Shape
Attribute Alias: Shape
Attribute Type: Geometry
Attribute Width: 0
Attribute Precision: 0
Attribute Scale: 0
Attribute Definition: Feature geometry.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute:
Attribute Label: PLACE_NAME
Attribute Alias: PLACE_NAME
Attribute Type: String
Attribute Width: 30
Attribute Definition: Name of communitiy
Attribute Definition Source: Census data or assigned polygon designation
Attribute:
Attribute Label: TYPE
Attribute Alias: TYPE
Attribute Type: Number
Attribute Width: 4
Attribute Definition: Type of community
Attribute:
Attribute Label: CO_NAME
Attribute Alias: CO_NAME
Attribute Type: String
Attribute Width: 14
Attribute Definition: Name of county where community resides.
Attribute:
Attribute Label: X_COORD
Attribute Alias: X_COORD
Attribute Type: Number
Attribute Width: 16
Attribute:
Attribute Label: Y_COORD
Attribute Alias: Y_COORD
Attribute Type: Number
Attribute Width: 16
Attribute:
Attribute Label: POP1980
Attribute Alias: POP1980
Attribute Type: Number
Attribute Width: 9
Attribute Definition: Population of the community according to the 1980 census.
Attribute:
Attribute Label: POP1990
Attribute Alias: POP1990
Attribute Type: Number
Attribute Width: 9
Attribute Definition: Population of the community according to the 1990 census.
Attribute:
Attribute Label: POP2000
Attribute Alias: POP2000
Attribute Type: Number
Attribute Width: 9
Attribute Definition: Population of the community according to the 2000 census.
Attribute:
Attribute Label: MHINC2000
Attribute Alias: MHINC2000
Attribute Type: Number
Attribute Width: 11
Attribute Definition: Minimum household income in the community according to the 2000 census.
Attribute:
Attribute Label: WWTP
Attribute Alias: WWTP
Attribute Type: String
Attribute Width: 9
Attribute Definition: Whether there is a known waste treatment plant in the community.
Attribute:
Attribute Label: HOUSING_UN
Attribute Alias: HOUSING_UN
Attribute Type: Number
Attribute Width: 10
Attribute Definition: Number of housing units in the community.
Attribute:
Attribute Label: OWNER_OCCU
Attribute Alias: OWNER_OCCU
Attribute Type: Number
Attribute Width: 11
Attribute Definition: Number of owner occupied houses in the community according to the 2000 census.
Attribute:
Attribute Label: RENTED
Attribute Alias: RENTED
Attribute Type: Number
Attribute Width: 12
Attribute Definition: Number of rented properties in the community according to the 2000 census.
Attribute:
Attribute Label: VACANT
Attribute Alias: VACANT
Attribute Type: Number
Attribute Width: 11
Attribute Definition: Number of vacant households in the community according to the 2000 census.
Attribute:
Attribute Label: COMMUNITY
Attribute Alias: COMMUNITY
Attribute Type: String
Attribute Width: 82
Attribute Definition: Place name of the community according to the county sanitarian. gave names to some unsewered communities for which there was no other name known.
Attribute:
Attribute Label: USD_
Attribute Alias: USD_
Attribute Type: String
Attribute Width: 21
Attribute Definition: Code/s or name/s given to the community during earlier process steps.
Attribute:
Attribute Label: INCORP_UNI
Attribute Alias: INCORP_UNI
Attribute Type: Number
Attribute Width: 19
Attribute:
Attribute Label: NEED_SEPTI
Attribute Alias: NEED_SEPTI
Attribute Type: String
Attribute Width: 16
Attribute Definition: Number of households that need septic systems. Information provided by the county sanitarian.
Attribute:
Attribute Label: ESTIMATE_N
Attribute Alias: ESTIMATE_N
Attribute Type: Number
Attribute Width: 17
Attribute Definition: The county sanitarian's estimate of how many households need septic systems if not known.
Attribute:
Attribute Label: COMMENTS
Attribute Alias: COMMENTS
Attribute Type: String
Attribute Width: 61
Attribute Definition: County sanitarian comments about the community.
Distribution Information:
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: Iowa Geological and WaterSurvey, DNR
Contact Address:
Address Type: mailing and physical address
Address: 109 Trowbridge Hall
City: Iowa City
State or Province: IA
Postal Code: 52242
Contact Voice Telephone: 319-335-1575
Contact Electronic Mail Address: gis_library@igsb.uiowa.edu
Contact Position: GeoSpatial DBA / NRGIS Librarian
Distribution Liability: Although efforts have been made in correcting errors in order to make this information useful to the Department, the Department assumes no responsibility for errors in the information. Similarly, the Department assumes no responsibility for the consequences of inappropriate uses or interpretations of the data made by anyone to whom this data has been made available. The Department bears no responsibility to inform users of any changes made to this data. Anyone using this data is advised that precision implied by the coverage may far exceed actual precision. Comments on this data are invited and the Department would appreciate that documented errors be brought to staff attention.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: shapefile
File Decompression Technique: zip
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name: ftp://ftp.igsb.uiowa.edu/IA_State/Environmental_Regulation/unsewered_communities.zip
Access Instructions: Click on link provided.
Fees: None
Ordering Instructions: Click on link provided.
Turnaround: Immediate
Available Time Period:
Time Period Information:
Single Date/Time:
Calendar Date: 365 days/year
Time of Day: 24 hours/day
Resource Description: Downloadable Data
Distribution Information:
Resource Description: Live Data and Maps
Distributor:
Contact Information:
Contact Electronic Mail Address: gis_library@igsb.uiowa.edu
Contact Voice Telephone: 319-335-1575
Contact Organization Primary:
Contact Organization: Iowa Geological and Water Survey, DNR
Contact Person: GeoSpatial DBA
Distribution Liability: Although efforts have been made in correcting errors in order to make this information useful to the Department, the Department assumes no responsibility for errors in the information. Similarly, the Department assumes no responsibility for the consequences of inappropriate uses or interpretations of the data made by anyone to whom this data has been made available. The Department bears no responsibility to inform users of any changes made to this data. Anyone using this data is advised that precision implied by the coverage may far exceed actual precision. Comments on this data are invited and the Department would appreciate that documented errors be brought to staff attention.
Standard Order Process:
Digital Form:
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name: http://www.iowadnr.gov/
Access Instructions: Click "Mapping (GIS Interactive)" on the left menu. Then Click the appropriate Mapping Application.
Digital Transfer Information:
Format Name: SDE Feature Class
Fees: None
Ordering Instructions: Click on link provided.
Turnaround: Immediate
Available Time Period:
Time Period Information:
Multiple Dates/Times:
Single Date/Time:
Calendar Date: 365 days / year
Time of Day: 24 hours / day
Metadata Reference Information:
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Iowa Geological and Water Survey, DNR
Contact Person: NRGIS Librarian
Contact Address:
Address Type: Mailing and Physical
Address: 109 Trowbridge Hall
City: Iowa City
State or Province: IA
Postal Code: 52242-1319
Contact Voice Telephone: 319-335-1575
Contact Electronic Mail Address: gis_library@igsb.uiowa.edu
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time
Metadata Access Constraints: None
Metadata Use Constraints: None
Metadata Extensions:
Online Linkage: http://www.esri.com/metadata/esriprof80.html
Profile Name: ESRI Metadata Profile
Metadata Date: 2007
Metadata Review Date: 20090916

ISO Metadata

Metadata language:
English
Metadata character set:
utf8 - 8 bit UCS Transfer Format
Scope of the data described by the metadata:
dataset
Scope name: dataset
Last update: 20090930
Name of the metadata standard used: ISO 19115 Geographic Information - Metadata
Version of the metadata standard: DIS_ESRI1.0
Distribution Information:
Distributor:
Transfer options:
Online source:
Description: Downloadable Data
Online location (URL): file://\\idnrgsb9\new_lib\Data_NAD83\IA_State\Environmental_Regulation\unsewered_communities.shp
Connection protocol: Local Area Network
Transfer size: 0.016
Available format:
Format name: Shapefile
Identification Information:
Processing environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000
Dataset language:
English
Citation:
Title: unsewered_communities
Presentation format:
digital map
Spatial representation type:
vector
Other extent information:
Geographic extent:
Geographic extent:
West longitude: 209974.23862
East longitude: 733333.559129
North latitude: 4816760
South latitude: 4475380.814162
Extent contains the resource: yes
Resource's bounding rectangle:
West longitude: -96.584229
East longitude: -90.115412
North latitude: 43.503769
South latitude: 40.378566
Extent contains the resource: yes
Spatial Representation Information:
Spatial Representation - Vector:
Level of topology for this dataset:
geometry only
Geometric objects:
Object type:
point
Object count: 606
Reference System Information:
Reference system identifier:
Reference system identifier:
Identity code: NAD_1983_UTM_Zone_15N

ESRI Metadata

Metadata ID: {04E1F7DF-3683-43A3-B806-CDCFB7A8DFFB}
Creation Date: 20070222
Creation Time: 12343600
Synchronize Once: FALSE
Synchronization Date: 20090930
Synchronization Time: 14271700
Modification Date: 20090930
Modification Time: 14324900