|
Section 1 | Identification Information - - - - - - top |
Originator | Minnesota DNR Waters - County Geologic Atlas and Regional Hydrogeologic Assessment Program |
Title | AQBDSNPY |
System Name | |
Abstract | Buried aquifer pollution sensitivity in the Traverse-Grant, Minnesota RHA study area |
Purpose | County Geologic Atlas and Regional Hydrogeologic Assessment Program,
Traverse-Grant Regional Hydrogeological Assessment, Part B, Regional Hydrogeological Assessment Series RHA-6 |
Time Period of Content Date | November, 2008 |
Currentness Reference | Publication date |
Progress | Complete |
Maintenance and Update Frequency | None Planned |
Spatial Extent of Data | West-central Minnesota, including: all of Pope County, all of Stevens County, northern Big Stone County, southern Douglas County, southern Grant County, and most of Traverse County. |
Bounding Coordinates | East | -95.1 | West | -96.8 | North | 46.0 | South | 45.4 |
|
Place Keywords | Pope, Stevens, Big Stone, Douglas, Grant, and Traverse counties; Minnesota. |
Theme Keywords | Pollution sensitivity, buried aquifer |
Theme Keyword Thesaurus | None |
Access Constraints | None |
Use Constraints | Users may wish to verify critical information; sources include both the references here and information on file in the offices of the Minnesota Geological Survey and the Department of Natural Resources. Every effort has been made to ensure the interpretation shown conforms to sound geologic and cartographic principles. This map should not be used to establish legal title, boundaries, or locations of improvements. |
Contact Person Information | See Metadata Reference Information section, below |
Browse Graphic File Name | |
Browse Graphic File Description | |
Associated Data Sets | Traverse-Grant Regional Hydrogeologic Assessment, Part A, Regional Hydrogeologic Assessment Series RHA-6 published by the Minnesota Geological Survey, 2006. More information and downloadable data for Part A is available on the MGS ftp site. |
|
Section 2 | Data Quality Information - - - - - - top |
Attribute Accuracy | |
Logical Consistency | Data are topologically correct using ArcGIS 9.2 |
Completeness | Complete |
Horizontal Positional Accuracy | unknown |
Vertical Positional Accuracy | not applicable |
Lineage | This file represents the thickness between the top of each aquifer and the base of the nearest overlying recharge surface. A description of recharge surfaces is found in Figure 2, Plate 6. Sensitivity estimates were created by calculating the vertical distance between the nearest overlying recharge surface and the top of the aquifer. The following grid calculations were used. Sensitivity calculations using recharge surfaces immediately above aquifers: LG aquifer
TRGrechsurf1 - UGbot OT aquifer
TRGrechsurf2 - LGbot CW aquifer
TRGrechsurf3 - OTbot Aquifer 1
TRGrechsurf4 - CWbot Western aquifer
TRGrechsurf3 - OTbot The sensitivity rating model, based on the thickness of the protective layer between the aquifer and the nearest overlying recharge surface, is described in Figure 2 of Plate 6. Sensitivity ratings are applied as follows:
Protective layer thickness - - Sensitivity Rating
0 to 10 feet - - High or Very High
10 to 20 feet - - Moderate or High
20 to 30 feet - - Moderate
30 to 40 feet - - Low
Greater than 40 feet - - Very Low The final raster was converted to a polygon shapefile. Sensitivity interpretation was based on overlapping estimated time of travel ranges as follows:
Red - - Very High - - Hours to months
Orange - - High - - Weeks to years
Yellow - - Moderate - - Years to decades
Light green - - Low - - Decades to a century
Dark green - - Very Low - - A century or more |
Source Scale Denominator | 100000 |
|
Section 3 | Spatial Data Organization Information - - - - - - top |
Native Data Set Environment | ArcGIS 9.2 |
Geographic Reference for Tabular Data | Not Applicable |
Spatial Object Type | Vector |
Vendor Specific Object Types | polygon |
Tiling Scheme | state |
|
Section 4 | Spatial Reference Information - - - - - - top |
Horizontal Coordinate Scheme | UTM |
Ellipsoid | GRS1980 |
Horizontal Datum | NAD83 |
Horizontal Units | meters |
Distance Resolution | meters |
Altitude Datum | n/a |
Altitude Units | n/a |
Depth Datum | n/a |
Depth Units | n/a |
Cell Width | 0 |
Cell Height | 0 |
Latitude Resolution | 0 |
Longitude Resolution | 0 |
UTM Zone Number | 15 |
SPCS Zone Identifier | 0 |
County Coordinate Zone Identifier | 0 |
Coordinate Offsets or Adjustments | n/a |
Map Projection Name | n/a |
Map Projection Parameters | n/a |
Other Coordinate System's Definition | n/a |
|
Section 5 | Entity and Attribute Information - - - - - - top |
Entity and Attribute Overview | |
Entity and Attribute Detailed Citation HTML Table (Not Available) | aqbdsnpy | | | | AQUIFER_Q | Buried aquifer code. The aquifers are identified as either "LG", "OT", "CW", "aquifer 1", or "western aquifer". | | RATING | "VH" is very high
"H" is high
"M" is moderate
"L" is low
"VL" is very low |
|
|
Section 6 | Distribution Information - - - - - - top |
Publisher | Minnesota DNR Waters |
Publication Date | 2008 |
Contact Person Information | See Metadata Reference Information section, below |
Distributor's Data Set Identifier | aqbdsnpy |
Distribution Liability | This map was prepared from publicly available information only. Every reasonable effort has been made to ensure the accuracy of the factual data on which this map is based. However, the Department of Natural Resources does not warrant the accuracy, completeness, or any implied uses of these data. Users may wish to verify critical information; sources include both the references here and information on file in the offices of the Minnesota Geological Survey and the Department of Natural Resources. Every effort has been made to ensure the interpretation shown conforms to sound geologic and cartographic principles. This map should not be used to establish legal title, boundaries, or locations of improvements. |
Transfer Format Name | shapefile |
Transfer Format Version Number | |
Transfer Size | |
Ordering Instructions | Download ARCVIEW shapefiles from:
Traverse-Grant Regional Hydrogeological Assessment, Part B: Metadata for GIS and Digital Data |
Online Linkage | Traverse-Grant Regional Hydrogeological Assessment, Part B: Metadata for GIS and Digital Data |
|
Section 7 | Metadata Reference Information - - - - - - top |
Metadata Date | 2009-03-16 |
Contact Person Information | GIS Specialist, Atlas/Assessment Program
Minnesota DNR - Division of Waters
500 Lafayette Road
Saint Paul, MN 55155
Phone: (651) 259-5693
FAX: (651) 296-0445
E-mail: |
Metadata Standard Name | Minnesota Geographic Metadata Guidelines |
Metadata Standard Version | 1.2 |
Metadata Standard Online Linkage | http://www.lmic.state.mn.us/gc/stds/metadata.htm |
| |
|
