Wellhead Protection Areas
Go to Section:- Overview
- Data Quality
- Data Organization
- Coordinate System
- Attributes
- Distribution - Get Data
- 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:
07/15/2019
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
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 Name | Valid Values | Definition | Definition Source |
|---|
| Area | - | Area of the polygon, derived from software (units in square meters) | |
| Dws_id | - | Drinking Water Supply Management Area ID (Sequential identifier). | |
| Lcm_code | enumerated | Location collection method code | |
| A0 | Address Matching - Unknown method | |
| A0 | Address Matching - Unknown method | |
| A1 | Address Matching - House number | |
| A1 | Address Matching - House number | |
| A16 | Address Matching - Parcel Centroid | |
| A16 | Address Matching - Parcel Centroid | |
| A2 | Address Matching - Block Face | |
| A2 | Address Matching - Block Face | |
| A3 | Address Matching - Street Centerline | |
| A3 | Address Matching - Street Centerline | |
| A4 | Address Matching - Nearest Intersection | |
| A4 | Address Matching - Nearest Intersection | |
| A50 | Address Matching - City name | |
| A50 | Address Matching - City name | |
| A51 | Address Matching - Township name | |
| A51 | Address Matching - Township name | |
| A52 | Address Matching - County name | |
| A52 | Address Matching - County name | |
| A53 | Address Matching - Feature name | |
| A53 | Address Matching - Feature name | |
| A55 | Address Matching - Lake name | |
| A55 | Address Matching - Lake name | |
| A6 | Address Matching - Digitized | |
| A6 | Address Matching - Digitized | |
| AZ | Address Matching - Zip Code | |
| AZ | Address Matching - Zip Code | |
| AZ2 | Address Matching - Zip Code +2 | |
| AZ2 | Address Matching - Zip Code +2 | |
| AZ4 | Address Matching - Zip Code +4 | |
| AZ4 | Address Matching - Zip Code +4 | |
| C0 | Census - Unknown | |
| C0 | Census - Unknown | |
| C1 | Census - Block 1990 | |
| C1 | Census - Block 1990 | |
| C2 | Census - Block/Group 1990 | |
| C2 | Census - Block/Group 1990 | |
| C3 | Census - Block/Tract 1990 | |
| C3 | Census - Block/Tract 1990 | |
| DS1 | "Digitization (Screen) - Map (1:24 | |
| DS1 | Digitization (Screen) - Map (1:24,000) | |
| DS2 | Digitization (Screen) - Map (1:12,000) | |
| DT1 | Digitization (Table) - Map (1:24,000) | |
| G1 | GPS Carrier Phase Static Relative Position | |
| G2 | GPS Carrier Phasae Kinematic Relative Position | |
| G3 | GPS Code Measurements (Pseudo Range) Differentially Corrected | |
| G4 | GPS Code Measurements (Pseudo Range) Precise Positioning Service | |
| G5 | GPS Code Measurements (Pseudo Range) Standard Positioning Service SA On | |
| G6A | GPS Code Measurements (Pseudo Range) Standard Positioning Service SA On (averaged) | |
| G6O | GPS Code Measurements (Pseudo Range) Standard Positioning Service SA Off (averaged) | |
| I0 | Interpolation - Unknown | |
| I1 | Interpolation - Map | |
| I1A | Interpolation - Map (1:24,000) | |
| I1B | Interpolation - Map (1:100,000) | |
| PF | Public Land Survey - Footing | |
| PQ1 | Public Land Survey - Quarter Section | |
| PQ2 | Public Land Survey - Quarter-Quarter (QQ) Section | |
| PQ3 | Public Land Survey - QQQ Section | |
| PQ4 | Public Land Survey - QQQQ Section | |
| PQ5 | Public Land Survey - QQQQQ Section | |
| PQ6 | Public Land Survey - QQQQQQ Section | |
| PS | Public Land Survey - Section | |
| PT | Public Land Survey - Township/Range | |
| S1 | Surveying | |
| U | Unknown | |
| 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_c | enumerated | Type of WHPA | |
| A | Aquifer | |
| C | Conjunctive | |
| 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_c | enumerated | Wellhead Status | |
| A | active | |
| D | deactivated | |
Section 6: Distribution
Publisher:
MN Department of Health
Publication Date:
07/15/2019
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:
07/15/2019
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
