Michigan Waterwells for WELLOGIC dataset
Metadata also available as
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator:
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Michigan State University, Remote Sensing and GIS Research and Outreach Services
- Title: Michigan Waterwells for WELLOGIC dataset
- Geospatial_Data_Presentation_Form: vector digital data
- Publication_Information:
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- Publication_Place: Lansing, MI
- Description:
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- Abstract:
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The data in these files is derived from Wellogic, the Michigan Department of Environmental Qualities statewide ground water database. Wellogic currently contains approximately 535,000 water well records. Although the derived data represents the best available data, the 535,000 records cannot be considered a complete database of all wells or well records in existence. Until January 1, 2000 not all water well records for new wells in Michigan made it into Wellogic. For wells drilled before 2000 the rate of inclusion is highly variable from one county to another. Further, there is a quality control check on location that may exclude some Wellogic records from inclusion in the Wellogic Download Tool Dataset.
- Purpose:
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The data has been published to provide regulators, consultants and the public extensive information that can be used in the study, analysis and management of Michigan's ground water resources. The dataset represents the single greatest collection of ground water information available and includes water well construction details and estimates of aquifer hydraulic characteristics based upon that information throughout Michigan.
- Status:
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- Progress: In work
- Maintenance_and_Update_Frequency: Annually
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -90.407727
- East_Bounding_Coordinate: -82.450402
- North_Bounding_Coordinate: 47.914586
- South_Bounding_Coordinate: 41.697367
- Access_Constraints: None
- Use_Constraints: None
- Point_of_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization:
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Drinking Water and Environmental Health Section, Resource Management Division
- Contact_Person: Brant Fisher
- Contact_Position: Environmental Engineer Specialist
- Contact_Voice_Telephone: 517-241-1415
- Contact_Electronic_Mail_Address: [email protected]
- Native_Data_Set_Environment:
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Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcGIS 10.0.5.4400
- Data_Quality_Information:
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- Logical_Consistency_Report:
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The source data for this dataset comes from Wellogic. Wellogic is an automated database for the entering and storing of ground water data as it relates to the construction of water wells throughout Michigan. The Wellogic program source code has a considerable number of quality assurance and quality control checks on the data as it is entered into the system that assure a basal degree of accuracy, completeness of records and reliability. Some of the data such as that associated with lithologic descriptions is subject to interpretation and may therefore carry with it inherent uncertainty. There has been no check for duplication of geographic elements within the dataset. In fact, random searches of the dataset in the regular course of data utilization and analysis have disclosed the presence of duplicate geographic elements such as the multiple entry of singular well records. Where duplications are disclosed every effort is made to combine the duplicates into one all encompassing record and the subsequent deletion/elimination of duplicate records.
- Completeness_Report:
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The point data representing individual water well records have been located based upon a variety of methods with varying positional accuracy. Well point locations based upon GPS data can have positional accuracies of + or minus 3 meters. Some well point locations have been established via review and placement of wells on aerial photos. The positional accuracy of this group is considered + or minus 10 meters. Other methods of assigning location such as address matching, classical surveying or the assignment of the well location to the center of a section may be off by as much as 750 meters.
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report:
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The point data representing individual water well records have been located based upon a variety of methods with varying positional accuracy. Well point locations based upon GPS data can have positional accuracies of + or minus 3 meters. Some well point locations have been established via review and placement of wells on aerial photos. The positional accuracy of this group is considered + or minus 10 meters. Other methods of assigning location such as address matching, classical surveying or the assignment of the well location to the center of a section may be off by as much as 750 meters. Fields are available that describe the method of collection and/or manner of location assignment.
- Lineage:
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- Process_Step:
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- Process_Description:
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The Wellogic Download Tool Dataset is created through the following sequence of tasks:
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Vector
- Point_and_Vector_Object_Information:
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- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: Entity point
- Point_and_Vector_Object_Count: 608918
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Geographic:
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- Latitude_Resolution: 8.9831528411952133e-009
- Longitude_Resolution: 8.9831528411952133e-009
- Geographic_Coordinate_Units: Decimal Degrees
- Geodetic_Model:
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- Horizontal_Datum_Name: D WGS 1984
- Ellipsoid_Name: WGS 1984
- Semi-major_Axis: 6378137.0
- Denominator_of_Flattening_Ratio: 298.257223563
- Entity_and_Attribute_Information:
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- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: michigan.WEBMERC.HYD_PT_DEQ_WATERWELLS
- Attribute:
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- Attribute_Label: FLOWING
- Attribute:
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- Attribute_Label: TRANSMSV_2
- Attribute:
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- Attribute_Label: Shape
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
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- Attribute_Label: OWNER_NAME
- Attribute:
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- Attribute_Label: RANGE
- Attribute:
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- Attribute_Label: SWL
- Attribute:
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- Attribute_Label: SCRN_FLAG
- Attribute:
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- Attribute_Label: ELEV_METHD
- Attribute:
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- Attribute_Label: V_COND_D
- Attribute:
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- Attribute_Label: SECTION
- Attribute:
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- Attribute_Label: WELL_ADDR
- Attribute:
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- Attribute_Label: LOC_MATCH
- Attribute:
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- Attribute_Label: B_V_COND
- Attribute:
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- Attribute_Label: WELL_CITY
- Attribute:
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- Attribute_Label: TEST_RATE
- Attribute:
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- Attribute_Label: CASE_TYPE
- Attribute:
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- Attribute_Label: DRILL_METH
- Attribute:
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- Attribute_Label: AQ_FLAG
- Attribute:
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- Attribute_Label: SPC_CPCITY
- Attribute:
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- Attribute_Label: WELL_TYPE
- Attribute:
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- Attribute_Label: ELEV_DEM
- Attribute:
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- Attribute_Label: WELL_ZIP
- Attribute:
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- Attribute_Label: PERMIT_NUM
- Attribute:
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- Attribute_Label: COUNTY
- Attribute:
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- Attribute_Label: STATUS_OTH
- Attribute:
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- Attribute_Label: GROUT
- Attribute:
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- Attribute_Label: CASE_DIA
- Attribute:
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- Attribute_Label: TEST_OTHER
- Attribute:
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- Attribute_Label: AQ_TYPE
- Attribute:
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- Attribute_Label: NOTES
- Attribute:
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- Attribute_Label: LATITUDE
- Attribute:
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- Attribute_Label: TOWN
- Attribute:
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- Attribute_Label: PMP_CPCITY
- Attribute:
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- Attribute_Label: V_COND_2
- Attribute:
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- Attribute_Label: CASE_DEPTH
- Attribute:
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- Attribute_Label: H_COND_2
- Attribute:
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- Attribute_Label: B_TRANS
- Attribute:
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- Attribute_Label: CASE_OTHER
- Attribute:
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- Attribute_Label: WSSN
- Attribute:
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- Attribute_Label: LONGITUDE
- Attribute:
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- Attribute_Label: DEPTH_FLAG
- Attribute:
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- Attribute_Label: ELEV_DIF
- Attribute:
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- Attribute_Label: AQ_CODE
- Attribute:
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- Attribute_Label: WITHIN_SEC
- Attribute:
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- Attribute_Label: WITHIN_CO
- Attribute:
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- Attribute_Label: WELL_DEPTH
- Attribute:
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- Attribute_Label: B_H_COND
- Attribute:
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- Attribute_Label: TEST_HOURS
- Attribute:
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- Attribute_Label: TYPE_OTHER
- Attribute:
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- Attribute_Label: TRANSMSV_1
- Attribute:
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- Attribute_Label: WELL_NUM
- Attribute:
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- Attribute_Label: SCREEN_FRM
- Attribute:
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- Attribute_Label: LANDSYS
- Attribute:
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- Attribute_Label: AQ_THK_1
- Attribute:
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- Attribute_Label: AQ_THK_2
- Attribute:
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- Attribute_Label: SWL_FLAG
- Attribute:
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- Attribute_Label: ROCK_TOP
- Attribute:
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- Attribute_Label: SCREEN_TO
- Attribute:
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- Attribute_Label: DRILLER_ID
- Attribute:
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- Attribute_Label: WEL_STATUS
- Attribute:
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- Attribute_Label: B_AQ_THK
- Attribute:
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- Attribute_Label: TEST_DEPTH
- Attribute:
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- Attribute_Label: OBJECTID
- Attribute_Definition: Internal feature number.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Sequential unique whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: SEC_DIST
- Attribute:
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- Attribute_Label: METH_OTHER
- Attribute:
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- Attribute_Label: V_COND_1
- Attribute:
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- Attribute_Label: ELEV_FLAG
- Attribute:
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- Attribute_Label: TRANS_D
- Attribute:
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- Attribute_Label: ELEVATION
- Attribute:
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- Attribute_Label: CONST_DATE
- Attribute:
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- Attribute_Label: WELLID
- Attribute:
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- Attribute_Label: AQ_THK_D
- Attribute:
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- Attribute_Label: TEST_METHD
- Attribute:
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- Attribute_Label: METHD_COLL
- Attribute:
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- Attribute_Label: H_COND_D
- Attribute:
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- Attribute_Label: H_COND_1
- Attribute:
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- Attribute_Label: WELLCODE
- Attribute:
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- Attribute_Label: TOPAQ
- Attribute:
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- Attribute_Label: BOTAQ
- Attribute:
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- Attribute_Label: WWAT_ID
- Attribute:
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- Attribute_Label: TOWNSHIP
- Overview_Description:
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- Entity_and_Attribute_Overview:
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Much of the attribute information such as that identified as Wellogic fields are copied directly from the source data and may be considered 100% accurate. However, this exact copying of the data does not preclude the possibility of typographic, transpose or other translation error in the data entry process. New fields added to the dataset as a result of the download execution are generally computational in nature and are accurate within the confines of the assumption and numeric assignment of information to the source data. For a complete data dictionary see; <http://www.mcgi.state.mi.us/mgdl/Wellogic_Download_Field_Definitions_Jul2012.txt>
- Distribution_Information:
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- Distributor:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization:
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Drinking Water and Environmental Health Section, Resource Management Division
- Contact_Person: Brant Fisher
- Contact_Position: Environmental Engineer Specialist
- Contact_Voice_Telephone: 517-241-1415
- Contact_Electronic_Mail_Address: [email protected]
- Distribution_Liability: None
- Metadata_Reference_Information:
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- Metadata_Date: 20121019
- Metadata_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization:
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Drinking Water and Environmental Health Section, Resource Management Division
- Contact_Person: Brant Fisher
- Contact_Position: Environmental Engineer Specialist
- Contact_Voice_Telephone: 517-241-1415
- Contact_Electronic_Mail_Address: [email protected]
- Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
Generated by mp version 2.9.12 on Fri Sep 15 11:51:50 2017