Metadata: Wellhead Protection Areas

Wellhead Protection Areas

This page last updated: 03/08/2019
Metadata created using Minnesota Geographic Metadata Guidelines


Go to Section:
  1. Overview
  2. Data Quality
  3. Data Organization
  4. Coordinate System
  5. Attributes
  6. Distribution - Get Data
  7. Metadata Reference

Section 1: Overview

Originator:MN Department of Health

Title: Wellhead Protection Areas

Abstract: Wellhead Protection Area (WHPA) is the Minnesota Department of Health (MDH) approved surface and subsurface area surrounding a public water supply well or well field that supplies a public water system, through which contaminants are likely to move toward and reach the well or well field.


Purpose: This dataset was developed with the intention of protecting the public drinking water supply and complies with the federal Safe Drinking Water Act, United States Code, title 42 and the State of Minnesota Rule (parts 4720.5100 to 4720.5590).

Time Period of Content Date: 03/08/2019

Currentness Reference: This data is updated continuously, more frequently than the metadata. See more details in activity stream at https://gisdata.mn.gov/dataset/activity/water-wellhead-protection-areas

Progress: Complete

Maintenance and Update Frequency: Continually

Spatial Extent of Data: Minnesota

Bounding Coordinates: -97.068180
-91.199999
48.803411
43.436316

Place Keywords: Minnesota, MN

Theme Keywords: Wellhead Protection, Capture zone, Groundwatershed, Drinking water, Wellhead Protection Area

Theme Keyword Thesaurus: MDH GIS Data Keyword Thesaurus

Access Constraints: None.

Use Constraints: Geospatial data is provided "as-is". MDH makes no warranty, expressed or implied, and disclaims all implied warranties of the data for any purpose. MDH also does not warrant that the geospatial data is error free. The geospatial data was developed for MDH internal business purposes. MDH shall not be liable for any activity involving the geospatial data with respect to the following: a.) Lost profits, lost savings or any other consequential damages; b.) The fitness of the geospatial data for a particular purpose; or c.) The installation of the geospatial data, its use or the results obtained.

Contact Person Information: Source Water Protection Unit Staff,
Minnesota Department of Health - Environmental Health Division
P.O. Box 64975
St. Paul, MN  55164-0975
Phone: 651-201-4700
Email: health.drinkingwater@state.mn.us

Browse Graphic: Click to view a data sample.
Example Wellhead Protection Area over aerial photos

Associated Data Sets: Drinking Water Supply Management Areas

Section 2: Data Quality

Attribute Accuracy: No known deficiencies

Logical Consistency:

Completeness: All approved WHPA areas that are active as of the temporal extent ending date.

Horizontal Positional Accuracy: Source layer whpa: Minimum scale requirement for data and/or maps is 1:24,000 (See Lcm_code in attribute table).

Vertical Positional Accuracy: Not Applicable

Lineage: Attribute Lineage for source table: Minnesota Department of Health and Various Private Consultants

Section 3: Spatial Data Organization (not used in this metadata)


Section 4: Coordinate System

Horizontal Coordinate Scheme: Universal Transverse Mercator

UTM Zone Number: 15

Horizontal Datum: NAD83

Horizontal Units: meters

Vertical Datum: not applicable

Vertical Units: Not Applicable

Depth Datum: not applicable

Depth Units: Not Applicable

Section 5: Attributes

Overview:

Detailed Citation:

Table Detail:
dataset table - Wellhead Protection Area attributes
Field NameValid ValuesDefinitionDefinition Source
Area
-
Area of the polygon, derived from software (units in square meters)
Dws_id
-
Drinking Water Supply Management Area ID (Sequential identifier).
Lcm_codeenumeratedLocation collection method code
A0Address Matching - Unknown method
A0Address Matching - Unknown method
A1Address Matching - House number
A1Address Matching - House number
A16Address Matching - Parcel Centroid
A16Address Matching - Parcel Centroid
A2Address Matching - Block Face
A2Address Matching - Block Face
A3Address Matching - Street Centerline
A3Address Matching - Street Centerline
A4Address Matching - Nearest Intersection
A4Address Matching - Nearest Intersection
A50Address Matching - City name
A50Address Matching - City name
A51Address Matching - Township name
A51Address Matching - Township name
A52Address Matching - County name
A52Address Matching - County name
A53Address Matching - Feature name
A53Address Matching - Feature name
A55Address Matching - Lake name
A55Address Matching - Lake name
A6Address Matching - Digitized
A6Address Matching - Digitized
AZAddress Matching - Zip Code
AZAddress Matching - Zip Code
AZ2Address Matching - Zip Code +2
AZ2Address Matching - Zip Code +2
AZ4Address Matching - Zip Code +4
AZ4Address Matching - Zip Code +4
C0Census - Unknown
C0Census - Unknown
C1Census - Block 1990
C1Census - Block 1990
C2Census - Block/Group 1990
C2Census - Block/Group 1990
C3Census - Block/Tract 1990
C3Census - Block/Tract 1990
DS1"Digitization (Screen) - Map (1:24
DS1Digitization (Screen) - Map (1:24,000)
DS2Digitization (Screen) - Map (1:12,000)
DT1Digitization (Table) - Map (1:24,000)
G1GPS Carrier Phase Static Relative Position
G2GPS Carrier Phasae Kinematic Relative Position
G3GPS Code Measurements (Pseudo Range) Differentially Corrected
G4GPS Code Measurements (Pseudo Range) Precise Positioning Service
G5GPS Code Measurements (Pseudo Range) Standard Positioning Service SA On
G6AGPS Code Measurements (Pseudo Range) Standard Positioning Service SA On (averaged)
G6OGPS Code Measurements (Pseudo Range) Standard Positioning Service SA Off (averaged)
I0Interpolation - Unknown
I1Interpolation - Map
I1AInterpolation - Map (1:24,000)
I1BInterpolation - Map (1:100,000)
PFPublic Land Survey - Footing
PQ1Public Land Survey - Quarter Section
PQ2Public Land Survey - Quarter-Quarter (QQ) Section
PQ3Public Land Survey - QQQ Section
PQ4Public Land Survey - QQQQ Section
PQ5Public Land Survey - QQQQQ Section
PQ6Public Land Survey - QQQQQQ Section
PSPublic Land Survey - Section
PTPublic Land Survey - Township/Range
S1Surveying
UUnknown
Acres
-
Total polygon area in acres (derived from (Area / 4046.8717) + 0.001)
Perimeter
-
Perimeter of the polygon, derived from software (units in meters).
Whp_id
-
Wellhead Protection Area ID (unique identifier)
Whp_name
-
Wellhead Protection Name (PWS Name and additional location information)
Whp_type_cenumeratedType of WHPA
AAquifer
CConjunctive
Tot
-
Time of travel in years (Minimum of 10. 9001 = undefined, but greater than 10. 9999 = unlimited)
Whpa_d
-
Wellhead Protection Area Approval Date
Whp_stat_cenumeratedWellhead Status
Aactive
Ddeactivated

Section 6: Distribution

Publisher: MN Department of Health

Publication Date: 03/08/2019

Contact Person Information: Michael Baker, GIS Data Administrator
MN Department of Health
625 Robert Street North
St. Paul, MN  55155
Phone: 651-201-4651
Fax: 651-201-4701
Email: michael.baker@state.mn.us

Distributor's Data Set Identifier: water_wellhead_protection_areas

Distribution Liability: Geospatial data is provided "as-is". MDH makes no warranty, expressed or implied, and disclaims all implied warranties of the data for any purpose. MDH also does not warrant that the geospatial data is error free. The geospatial data was developed for MDH internal business purposes. MDH shall not be liable for any activity involving the geospatial data with respect to the following: a.) Lost profits, lost savings or any other consequential damages; b.) The fitness of the geospatial data for a particular purpose; or c.) The installation of the geospatial data, its use or the results obtained.

Ordering Instructions: See Online Linkage or Distribution Contact

Online Linkage: I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process, link to a service, or provide more instructions. See "Ordering Instructions" above for details.

Section 7: Metadata Reference

Metadata Date: 03/08/2019

Contact Person Information: Mike Dolbow, GIS Supervisor
MN Geospatial Information Office
658 Cedar Street
St. Paul, MN  55155
Phone: 651-201-3944
Email: mike.dolbow@state.mn.us

Metadata Standard Name: Minnesota Geographic Metadata Guidelines

Metadata Standard Version: 1.2

Metadata Standard Online Linkage: http://www.gis.state.mn.us/stds/metadata.htm


This page last updated: 03/08/2019
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