Minnesota DNR Waters
County Geologic Atlas and Regional Hydrogeologic Assessment Program

Description of data created for
Mower County Geologic Atlas, Part B, CGA-11

POTSFCLN - Potentiometric Surface Contour Elevations

Metadata created using Minnesota Geographic Metadata Guidelines version 1.2
Metadata content prepared 2003-09-10


Go to Section:
1. Identification Information
2. Data Quality Information
3. Spatial Data Organization Information
4. Spatial Reference Information
5. Entity and Attribute Information
6. Distribution Information
7. Metadata Reference Information
 

 

Section 1

Identification Information - - - - - - top

Originator

Minnesota DNR Waters - County Geologic Atlas and Regional Hydrogeologic Assessment Program

Title

POTSFCLN

 

System Name

Abstract

Bedrock aquifer potentiometric surface contour elevations

Purpose

County Geologic Atlas and Regional Hydrogeologic Assessment Program,
Mower County Atlas, Part B, CGA-11

Time Period of Content Date

8/21/00

Currentness Reference

Current

Progress

Complete

Maintenance and Update Frequency

None Planned

Spatial Extent of Data

Mower county.

Bounding Coordinates

East

544,492

West

495,943

North

4,855,047

South

4,816,243

Place Keywords

Minnesota, Mower County

Theme Keywords

Bedrock hydrogeology, potentiometric surface

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

None

 

Section 2

Data Quality Information - - - - - - top

Attribute Accuracy

 

Logical Consistency

Data are topologically correct using ArcInfo 7.1.1

Completeness

Complete

Horizontal Positional Accuracy

unknown

Vertical Positional Accuracy

not applicable

Lineage

Potentiometric contours of four bedrock aquifers, the Upper Cedar Valley, Lower Cedar Valley, Spillville-Maquoketa, and Galena Group were created using a combination of historical CWI data and a smaller, more precise set of data from the chemistry network. The elevations in the chemistry network are accurate to within an inch, and the static water level measurements are similarly accurate. The contours were drawn by hand using static water level measurements for each of the four main aquifers. The contours for the Spillville-Maquoketa aquifer were less smooth than the other aquifers because the data and the type of aquifer suggests that ground water is flowing through conduits in the aquifer to the major surface water drainage. The Galena Group potentiometric contours are uncertain because of limited data.

An Arc/Info coverage was created by hand digitizing the contours in Arcedit. A shapefile was created from this coverage using the arcshape command.

The potentiometric contours of the Upper Cedar Valley, Lower Cedar Valley, and Spillville-Maquoketa aquifers are shown on Plate 7, Bedrock Hydrogeology. The potentiometric contours of the Galena Group aquifer are shown only in the Technical Appendix to Part B.

Source Scale Denominator

100,000

 

Section 3

Spatial Data Organization Information - - - - - - top

Native Data Set Environment

ArcView 3.2

Geographic Reference for Tabular Data

Not Applicable

Spatial Object Type

Vector

Vendor Specific Object Types

line

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)

potsfcln.dbf

 

 

 

ID

Unique ID

 

ELEVATION

Elevation in feet above mean sea level of the potentiometric surface contour of an aquifer. Contour interval is 20 feet.

 

COMMENTS

"dashed" refers to contour segments where line is uncertain due to inadequate data. "solid" refers to a segment that is reliable based on adequate data.

 

AQUIFERS

Aquifer to which the potentiometric line pertains: "Dcvu" refers to the Upper Cedar Valley aquifer; "Dcvl" refers to the Lower Cedar Valley aquifer; "Dsom" refers to the Spillville - Maquoketa aquifer; "Ogal" refers to the Galena Group aquifer.

 

Section 6

Distribution Information - - - - - - top

Publisher

Minnesota DNR Waters

Publication Date

2002

Contact Person Information

See Metadata Reference Information section, below

Distributor's Data Set Identifier

potsfcln

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:
Mower County Geologic Atlas, Part B: Metadata for GIS and Digital Data

Online Linkage

Mower County Geologic Atlas, Part B: Metadata for GIS and Digital Data

 

Section 7

Metadata Reference Information - - - - - - top

Metadata Date

2003-09-10

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