Selected aquifer-test and specific-capacity data for wells in the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
Metadata also available as
Metadata:
- Identification_Information:
-
- Citation:
-
- Citation_Information:
-
- Originator: Arnold, L.R.
- Publication_Date: 2010
- Title:
-
Selected aquifer-test and specific-capacity data for wells in the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
- Geospatial_Data_Presentation_Form: vector digital data
- Series_Information:
-
- Series_Name: U.S. Geological Survey Data Series
- Issue_Identification: 507
- Publication_Information:
-
- Publication_Place: Reston, VA
- Publisher: U.S. Geological Suvey
- Online_Linkage: <http://water.usgs.gov/lookup/getspatial?ds507_welltest_data>
- Larger_Work_Citation:
-
- Citation_Information:
-
- Originator: Arnold, L.R.
- Publication_Date: 2010
- Title:
-
Geographic information datasets of regolith-thickness data, regolith-thickness contours, raster-based regolith thickness, and aquifer-test and specific-capacity data for the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
- Series_Information:
-
- Series_Name: U.S. Geological Survey Data Series
- Issue_Identification: 507
- Publication_Information:
-
- Publication_Place: Reston, VA
- Publisher: U.S. Geological Survey
- Other_Citation_Details:
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Arnold, L.R., Geographic information datasets of regolith-thickness data, regolith-thickness contours, raster-based regolith thickness, and aquifer-test and specific-capacity data for the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado: U.S. Geological Survey Data Series 507.
- Online_Linkage: <http://pubs.usgs.gov/ds/507/>
- Larger_Work_Citation:
-
- Citation_Information:
-
- Originator: Arnold, L.R.
- Publication_Date: 2010
- Title:
-
Hydrogeology and steady-state numerical simulation of groundwater flow in the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
- Series_Information:
-
- Series_Name: U.S. Geological Survey Scientific-Investigations Report
- Issue_Identification: 2010-5082
- Publication_Information:
-
- Publication_Place: Reston, VA
- Publisher: U.S. Geological Survey
- Other_Citation_Details:
-
Arnold, L.R., Hydrogeology and steady-state numerical simulation of groundwater flow in the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado: U.S. Geological Survey Scientific-Investigations Report 2010-5082.
- Online_Linkage: <http://pubs.usgs.gov/sir/2010/5082/>
- Description:
-
- Abstract:
-
This point dataset contains estimates of aquifer transmissivity and hydraulic conductivity at selected well locations in the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado. This dataset also contains hydrologic information used to estimate transmissivity from specific capacity at selected well locations. Data were compiled from published reports, consultant reports, and from well-test records on file with the U.S. Geological Survey and Colorado Division of Water Resources. The U.S. Geological Survey prepared this dataset in cooperation with the Colorado Geological Survey and the Lost Creek Ground Water Management District.
- Purpose:
-
This dataset is 1 of 4 datasets (see cross references) developed in support of U.S. Geological Survey Scientific-Investigations Report 2010-5082. This dataset was created to provide information about estimated aquifer transmissivity and hydraulic conductivity in the Lost Creek Designated Ground Water Basin.
- Supplemental_Information:
-
The Lost Creek Designated Ground Water Basin is an alluvial valley-fill aquifer in northeastern Colorado that is an important water source for irrigation, municipal, and domestic uses.
- Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 2010
- Currentness_Reference: publication date
- Status:
-
- Progress: Complete
- Maintenance_and_Update_Frequency: None planned
- Spatial_Domain:
-
- Bounding_Coordinates:
-
- West_Bounding_Coordinate: -104.488085
- East_Bounding_Coordinate: -104.234679
- North_Bounding_Coordinate: 40.257191
- South_Bounding_Coordinate: 39.940500
- Keywords:
-
- Theme:
-
- Theme_Keyword_Thesaurus: none
- Theme_Keyword: inlandWaters
- Theme_Keyword: aquifer
- Theme_Keyword: transmissivity
- Theme_Keyword: hydraulic conductivity
- Theme_Keyword: saturated thickness
- Place:
-
- Place_Keyword_Thesaurus: Getty Thesaurus of Geographic Names
- Place_Keyword: Lost Creek
- Place_Keyword: Weld County
- Place_Keyword: Adams County
- Place_Keyword: Arapahoe County
- Place_Keyword: Colorado
- Stratum:
-
- Stratum_Keyword_Thesaurus: Dictionary of Geologic Terms
- Stratum_Keyword: groundwater
- Stratum_Keyword: basin
- Access_Constraints: None.
- Use_Constraints: None.
- Point_of_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: L.R. Arnold
- Contact_Position: Hydrologist
- Contact_Address:
-
- Address_Type: mailing address
- Address: Denver Federal Center
- Address: Colorado Water Science Center
- Address: P.O. Box 25046, MS 415
- City: Denver
- State_or_Province: CO
- Postal_Code: 80225-0046
- Country: USA
- Contact_Voice_Telephone: 1-888-275-8747 (1-888-ASK-USGS)
- Contact_Electronic_Mail_Address:
-
<http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ds507_welltest_data>
- Security_Information:
-
- Security_Classification_System: Department of the Interior
- Security_Classification: Unclassified
- Security_Handling_Description: Data are published and available online.
- Native_Data_Set_Environment:
-
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3500
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Arnold, L.R.
- Publication_Date: 2010
- Title:
-
Selected geologic data for wells and test holes in and near the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
- Geospatial_Data_Presentation_Form: vector digital data
- Series_Information:
-
- Series_Name: U.S. Geological Survey Data Series
- Issue_Identification: 507
- Publication_Information:
-
- Publication_Place: Reston, VA
- Publisher: U.S. Geological Survey
- Online_Linkage: <http://water.usgs.gov/lookup/getspatial?ds507_regolith_data>
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Arnold, L.R.
- Publication_Date: 2010
- Title:
-
Contours of equal regolith thickness for the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
- Geospatial_Data_Presentation_Form: vector digital data
- Series_Information:
-
- Series_Name: U.S. Geological Survey Data Series
- Issue_Identification: 507
- Publication_Information:
-
- Publication_Place: Reston, VA
- Publisher: U.S. Geological Suvey
- Online_Linkage: <http://water.usgs.gov/lookup/getspatial?ds507_regthick_contours>
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Arnold, L.R.
- Publication_Date: 2010
- Title:
-
Raster-based regolith thickness of the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
- Geospatial_Data_Presentation_Form: raster digital data
- Series_Information:
-
- Series_Name: U.S. Geological Survey Data Series
- Issue_Identification: 507
- Publication_Information:
-
- Publication_Place: Reston, VA
- Publisher: U.S. Geological Survey
- Online_Linkage: <http://water.usgs.gov/lookup/getspatial?ds507_regthk>
- Data_Quality_Information:
-
- Attribute_Accuracy:
-
- Attribute_Accuracy_Report:
-
Aquifer-test data were compiled from Bjorklund and Brown (1957), Skinner (1963), Wilson (1965), Nelson, Haley, Patterson, and Quirk, Inc. (1967), JR Engineering, written commun. (2005), and HRS Water Consultants, Inc., written commun. (2006). Specific-capacity data were compiled from well-test records on file with the U.S. Geological Survey Colorado Water Science Center and the Colorado Division of Water Resources.
Location information has variable accuracy depending on the data source.
- Quantitative_Attribute_Accuracy_Assessment:
-
- Attribute_Accuracy_Value: unknown
- Attribute_Accuracy_Explanation:
-
Accuracy of aquifer-test and specific-capactiy data reported by the original data source (specified in the SOURCE attribute field) is unknown.
- Logical_Consistency_Report:
-
Point data attributes for this dataset are consistent in meaning, although the attribute information was derived from multiple sources, as indicated by the SOURCE attribute. All points in the dataset were processed by a single individual to ensure data consistency over the dataset extent.
- Completeness_Report:
-
Data were digitized and plotted manually on-screen based on location information provided by the data source. Digital raster graphic topographic maps having a scale of 1:24,000 with a contour interval of 10 feet were used to determine approximate site locations.
- Positional_Accuracy:
-
- Horizontal_Positional_Accuracy:
-
- Horizontal_Positional_Accuracy_Report:
-
Horizontal accuracy is variable. Data were plotted using Public Land Survey System descriptions and 1:24,000 Digital Raster Graphics. Data from the Colorado Division of Water Resources generally are assumed to be accurately located because, in most cases, they were plotted using reported distances from section lines. Data from HRS Water Consultants, Inc. also are assumed to be accurately located because they were plotted using detailed location information provided by the data source. For other data, locations generally were described to the nearest quarter-quarter-quarter section. Ancillary location information provided by the data source (if available) was used to refine data locations. In cases where ancillary information was not available, data were plotted near the center of the nearest quarter described by the data source.
- Quantitative_Horizontal_Positional_Accuracy_Assessment:
-
- Horizontal_Positional_Accuracy_Value: 330
- Horizontal_Positional_Accuracy_Explanation:
-
Maximum horizontal error is estimated as about 660 feet for wells plotted to the nearest quarter-quarter section. However, horizontal accuracy of other points is estimated as better than about 330 ft (1/4, 1/4, 1/4 section). Accuracy is estimated on the basis of reported Public Land Survey Sytem (PLSS) accuracy (number of quarters provided by original source).
- Vertical_Positional_Accuracy:
-
- Vertical_Positional_Accuracy_Report: Not applicable.
- Quantitative_Vertical_Positional_Accuracy_Assessment:
-
- Vertical_Positional_Accuracy_Value: 0
- Vertical_Positional_Accuracy_Explanation:
-
0 used as placeholder for null - vertical accuracy is not applicable to this dataset.
- Lineage:
-
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: U.S. Geological Survey
- Publication_Date: 1957
- Title:
-
Geology and ground-water resources of the lower South Platte River valley between Hardin, Colorado, and Paxton, Nebraska
- Geospatial_Data_Presentation_Form: document
- Series_Information:
-
- Series_Name: U.S. Geological Survey Water-Supply Paper
- Issue_Identification: 1378
- Publication_Information:
-
- Publication_Place: Reston, VA
- Publisher: U.S. Geological Survey
- Other_Citation_Details:
-
Bjorklund, L.J., and Brown, R.F., 1957, Geology and ground-water resources of the lower South Platte River valley between Hardin, Colorado, and Paxton, Nebraska: U.S. Geological Survey Water-Supply Paper 1378, 431 p., 4 pls.
- Type_of_Source_Media: paper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 1957
- Source_Currentness_Reference: geologic condition
- Source_Citation_Abbreviation: Bjorklund and Brown, 1957
- Source_Contribution:
-
Source for well location, test date, specific capacity, transmissivity, saturated thickness, and hydraulic conductivity.
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: Nelson, Haley, Patterson, and Quirk, Inc.
- Publication_Date: 1967
- Title:
-
Ground water resources of the Lost Creek drainage basin, Weld, Adams, and Arapahoe Counties, Colorado
- Geospatial_Data_Presentation_Form: document
- Series_Information:
-
- Series_Name: none
- Issue_Identification: none
- Publication_Information:
-
- Publication_Place: unpublished
- Publisher: unpublished
- Other_Citation_Details:
-
Nelson, Haley, Patterson, and Quirk, Inc., 1967, Ground water resources of the Lost Creek drainage basin, Weld, Adams, and Arapahoe Counties, Colorado: Report prepared for the Colorado Ground Water Commission, 32 p., 3 pls.
- Type_of_Source_Media: paper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 1967
- Source_Currentness_Reference: geologic condition
- Source_Citation_Abbreviation: NHPQ, 1967
- Source_Contribution:
-
Source for well location, test date, specific capacity, transmissivity, saturated thickness, and hydraulic conductivity.
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: HRS Water Consultants, Inc.
- Publication_Date: 2006
- Title: HRS Water Consultants, Inc., written communication
- Series_Information:
-
- Series_Name: none
- Issue_Identification: none
- Publication_Information:
-
- Publication_Place: unpublished
- Publisher: unpublished
- Other_Citation_Details: HRS Water Consultants, Inc., written commun. (2006)
- Type_of_Source_Media: written communication
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 1997
- Source_Currentness_Reference: geologic condition
- Source_Citation_Abbreviation: HRS, 2006
- Source_Contribution:
-
Source for well location, test date, specific capacity, transmissivity, saturated thickness, and hydraulic conductivity.
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: JR Engineering
- Publication_Date: 2005
- Title: JR Engineering, written communication
- Series_Information:
-
- Series_Name: none
- Issue_Identification: none
- Publication_Information:
-
- Publication_Place: unpublished
- Publisher: unpublished
- Other_Citation_Details: JR Engineering, written commun. (2005)
- Type_of_Source_Media: written communication
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 1990
- Source_Currentness_Reference: geologic condition
- Source_Citation_Abbreviation: JR Engineering, 2005
- Source_Contribution:
-
Source for well location, test date, specific capacity, transmissivity, saturated thickness, and hydraulic conductivity.
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: Colorado Agricultural Experiment Station
- Publication_Date: 1963
- Title:
-
Artificial ground-water recharge in the Prospect Valley area, Colorado
- Geospatial_Data_Presentation_Form: document
- Series_Information:
-
- Series_Name: General Series
- Issue_Identification: 792
- Publication_Information:
-
- Publication_Place: Fort Collins
- Publisher: Colorado Agricultural Experiment Station
- Other_Citation_Details:
-
Skinner, M.M., 1963, Artificial ground-water recharge in the Prospect Valley area, Colorado: Colorado Agricultural Experiment Station General Series 792, 89 p.
- Type_of_Source_Media: paper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 1963
- Source_Currentness_Reference: geologic condition
- Source_Citation_Abbreviation: Skinner, 1963
- Source_Contribution:
-
Source for well location, specific capacity, transmissivity, saturated thickness, and hydraulic conductivity.
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: Colorado Division of Water Resources
- Publication_Date: unpublished material
- Title: Colorado Division of Water Resources well-permit database
- Geospatial_Data_Presentation_Form: document
- Series_Information:
-
- Series_Name: none
- Issue_Identification: none
- Publication_Information:
-
- Publication_Place: unpublished publically available data
- Publisher: unpublished publically available data
- Other_Citation_Details: Colorado Division of Water Resources well-permit database.
- Type_of_Source_Media: paper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 2009
- Source_Currentness_Reference: geologic condition
- Source_Citation_Abbreviation: CDWR
- Source_Contribution:
-
Source for well location, test date, rate, drawdown, saturated thickness (screen length).
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: U.S. Geological Survey
- Publication_Date: unpublished material
- Title: U.S. Geological Survey well records
- Geospatial_Data_Presentation_Form: document
- Series_Information:
-
- Series_Name: none
- Issue_Identification: none
- Publication_Information:
-
- Publication_Place: unpublished publicly available data
- Publisher: unpublished publicly available data
- Other_Citation_Details:
-
U.S. Geological Survey well records, available from the Colorado Water Science Center.
- Online_Linkage: <http://co.water.usgs.gov/Website/projects/viewer.htm>
- Type_of_Source_Media: paper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 2009
- Source_Currentness_Reference: geologic condition
- Source_Citation_Abbreviation: USGS
- Source_Contribution:
-
Source for well location, test date, rate, drawdown, saturated thickness (screen length).
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: Colorado Water Conservation Board
- Publication_Date: 1965
- Title: Pumping tests in Colorado
- Series_Information:
-
- Series_Name: Ground Water Circular
- Issue_Identification: 11
- Publication_Information:
-
- Publication_Place: Denver, CO
- Publisher: Colorado Water Conservation Board
- Other_Citation_Details:
-
Wilson, W.W., 1965, Pumping tests in Colorado: Denver, Colorado Water Conservation Board Ground Water Circular 11, 361 p.
- Type_of_Source_Media: paper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 1965
- Source_Currentness_Reference: geologic condition
- Source_Citation_Abbreviation: Wilson, 1965
- Source_Contribution:
-
Source for well location, specific capacity, transmissivity, saturated thickness, and hydraulic conductivity.
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: U.S. Geological Survey
- Publication_Date: 1963
- Title:
-
Estimating the transmissibility of aquifers from the specific capacities of wells, in Bentall, Ray, 1963, Methods of determining permeability, transmissibility and drawdown
- Series_Information:
-
- Series_Name: U.S. Geological Survey Water-Supply Paper
- Issue_Identification: 1536-I
- Publication_Information:
-
- Publication_Place: Reston, VA
- Publisher: U.S. Geological Survey
- Other_Citation_Details:
-
Theis, C.V., Brown, R.H., and Meyer, R.R., 1963, Estimating the transmissibility of aquifers from the specific capacities of wells, in Bentall, Ray, 1963, Methods of determining permeability, transmissibility and drawdown: U.S. Geological Survey Water-Supply Paper 1536-I, p. 331-341.
- Type_of_Source_Media: paper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 1963
- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: Theis and others,1963
- Source_Contribution:
-
Source of methodology used to estimate transmissivity from specific-capacity data.
- Process_Step:
-
- Process_Description:
-
Data were manually digitized (on-screen) in the ArcMap editing environment based on location information provided by the original data source using, as a backdrop, 1:24,000 digital raster graphic topographic maps having a contour interval of 10 feet.
The following attributes were added to the point dataset: WELL_ID, LOCATION, TEST_DATE, RATE, DRAWDOWN, SPEC_CAP, T, SAT_THICK, K, REMARK, and SOURCE.
- Source_Used_Citation_Abbreviation: Bjorklund and Brown, 1957
- Source_Used_Citation_Abbreviation: NHPQ, 1967
- Source_Used_Citation_Abbreviation: JR Engineering, 2005
- Source_Used_Citation_Abbreviation: HRS, 2006
- Source_Used_Citation_Abbreviation: Skinner, 1963
- Source_Used_Citation_Abbreviation: CDWR
- Source_Used_Citation_Abbreviation: USGS
- Source_Used_Citation_Abbreviation: Wilson, 1965
- Source_Used_Citation_Abbreviation: Theis and others, 1963
- Process_Date: 20091020
- Process_Step:
-
- Process_Description: Metadata imported.
- Source_Used_Citation_Abbreviation: T:\Temp\xml69.tmp
- Process_Date: 20100608
- Process_Time: 14365700
- Process_Step:
-
- Process_Description: Dataset copied.
- Source_Used_Citation_Abbreviation:
-
U:\Lost_Creek\CGS_ASR\Datasets\Lost_Creek_datasets_060810\welltest_data
- Process_Date: 20100609
- Process_Time: 11002700
- Process_Step:
-
- Process_Description: Metadata imported.
- Source_Used_Citation_Abbreviation: T:\Temp\xml2D.tmp
- Process_Date: 20100916
- Process_Time: 12363900
- Cloud_Cover: 0
- Spatial_Data_Organization_Information:
-
- Direct_Spatial_Reference_Method: Vector
- Point_and_Vector_Object_Information:
-
- SDTS_Terms_Description:
-
- SDTS_Point_and_Vector_Object_Type: Entity point
- Point_and_Vector_Object_Count: 37
- Spatial_Reference_Information:
-
- Horizontal_Coordinate_System_Definition:
-
- Planar:
-
- Grid_Coordinate_System:
-
- Grid_Coordinate_System_Name: Universal Transverse Mercator
- Universal_Transverse_Mercator:
-
- UTM_Zone_Number: 13
- Transverse_Mercator:
-
- Scale_Factor_at_Central_Meridian: 0.999600
- Longitude_of_Central_Meridian: -105.000000
- Latitude_of_Projection_Origin: 0.000000
- False_Easting: 500000.000000
- False_Northing: 0.000000
- Planar_Coordinate_Information:
-
- Planar_Coordinate_Encoding_Method: coordinate pair
- Coordinate_Representation:
-
- Abscissa_Resolution: 0.000000
- Ordinate_Resolution: 0.000000
- Planar_Distance_Units: meters
- Geodetic_Model:
-
- Horizontal_Datum_Name: North American Datum of 1983
- Ellipsoid_Name: Geodetic Reference System 80
- Semi-major_Axis: 6378137.000000
- Denominator_of_Flattening_Ratio: 298.257222
- Vertical_Coordinate_System_Definition:
-
- Altitude_System_Definition:
-
- Altitude_Datum_Name: National Geodetic Vertical Datum of 1929
- Altitude_Resolution: 1
- Altitude_Distance_Units: feet
- Altitude_Encoding_Method: Implicit coordinate
- Entity_and_Attribute_Information:
-
- Detailed_Description:
-
- Entity_Type:
-
- Entity_Type_Label: ds507_welltest_data
- Entity_Type_Definition: point
- Entity_Type_Definition_Source: compiled by USGS from various sources
- Attribute:
-
- Attribute_Label: FID
- Attribute_Definition: Internal feature number.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
-
- Unrepresentable_Domain:
-
Sequential unique whole numbers that are automatically generated.
- Attribute:
-
- Attribute_Label: Shape
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
-
- Attribute_Label: WELL_ID
- Attribute_Definition:
-
Number used to identify well or test-hole site. WELL_ID of data compiled from CDWR indicates well-permit number.
- Attribute_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Unique well identifier from various sources.
- Attribute:
-
- Attribute_Label: LOCATION
- Attribute_Definition:
-
Describes site location by township, range, and section. For example, a site described as SB00106322ACC is located in the southwest quarter of the southwest quarter of the northeast quarter of section 22, Township 1 North, Range 63 West. The letter S at the beginning of the number indicates the site is referenced to the Sixth Principal Meridian. The letter B following S indicates the site is a north Township (a letter C following S would indicate a south Township. The eight digits following SB indicate Township number (001), Range number (063), and section (22). Letters following township, range, and section indicate quarter (A), quarter-quarter (C), and quarter-quarter-quarter (C) sections, respectively. The letters A, B, C, and D represent northeast, northwest, southwest, and southeast quarters, respectively.
- Attribute_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name:
-
Coded well identifier including Public Land Survey System (PLSS) information.
- Codeset_Source: Department of the Interior
- Attribute:
-
- Attribute_Label: TEST_DATE
- Attribute_Definition: Date of aquifer test or specific-capacity test.
- Attribute_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Domain is valid date values.
- Attribute:
-
- Attribute_Label: RATE
- Attribute_Definition:
-
Pumping rate of well during specific-capacity test, in gallons per minute.
- Attribute_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Domain is 0 to a positive value.
- Attribute:
-
- Attribute_Label: DRAWDOWN
- Attribute_Definition: Drawdown, in feet, measured during specific-capacity test.
- Attribute_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Domain is 0 to a positive value.
- Attribute:
-
- Attribute_Label: SPEC_CAP
- Attribute_Definition:
-
Specific capacity of well, in gallons per minute per foot of drawdown, calculated as pumping rate divided by drawdown.
- Attribute_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Domain is 0 to a positive value.
- Attribute:
-
- Attribute_Label: T
- Attribute_Definition:
-
Aquifer transmissivity, in feet squared per day. Transmissivity values at wells with aquifer-test data are the values reported by the data source. The method of Theis and others (1963, p. 331-341) (see Lineage: Source_Information) was used to estimate aquifer transmissivity from specific-capacity data at wells where aquifer-test data were not available. Comparison of transmissivities calculated using the method of Theis and others (1963) to transmissivities determined by aquifer tests indicated that transmissivities estimated from specific capacity were smaller than those from aquifer tests. Therefore, transmissivity values from aquifer tests were regressed against transmissivity estimated from specific capacity, and the resulting power regression equation was used to adjust transmissivity values estimated from specific capacity.
- Attribute_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Domain is 0 to a positive value.
- Attribute:
-
- Attribute_Label: SAT_THICK
- Attribute_Definition:
-
Aquifer saturated thickness, in feet, at the well location. Saturated thickness at wells for which aquifer-test data were available is the value reported by the data source. Saturated thickness at wells for which aquifer-test data were not available is approximated as the length of the perforated well interval.
- Attribute_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Domain is 0 to a positive value.
- Attribute:
-
- Attribute_Label: K
- Attribute_Definition:
-
Aquifer hydraulic conductivity, in feet per day. Hydraulic conductivity at wells for which aquifer-test data were available is the value reported by the data source. Hydraulic conductivity at wells for which aquifer-test data were not available is calculated as transmissivity divided by the saturated thickness (length of perforated well interval).
- Attribute_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Domain is 0 to a positive value.
- Attribute:
-
- Attribute_Label: REMARK
- Attribute_Definition:
-
Additional information related to the site, particularly to the materials used from the data source.
- Attribute_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Comments text field having multiple possible values.
- Attribute_Measurement_Frequency: None planned
- Attribute:
-
- Attribute_Label: SOURCE
- Attribute_Definition: Source of data.
- Attribute_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Enumerated_Domain:
-
- Enumerated_Domain_Value: Bjorklund&Brown, 1957
- Enumerated_Domain_Value_Definition:
-
Bjorklund, L.J., and Brown, R.F., 1957, Geology and ground-water resources of the lower South Platte River valley between Hardin, Colorado, and Paxton, Nebraska: U.S. Geological Survey Water-Supply Paper 1378, 431 p., 4 pls.
- Enumerated_Domain_Value_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Enumerated_Domain:
-
- Enumerated_Domain_Value: CDWR
- Enumerated_Domain_Value_Definition: Colorado Division of Water Resources well-permit database.
- Enumerated_Domain_Value_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Enumerated_Domain:
-
- Enumerated_Domain_Value: JR Engineering, 2005
- Enumerated_Domain_Value_Definition: JR Engineering, written commun. (2005)
- Enumerated_Domain_Value_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Enumerated_Domain:
-
- Enumerated_Domain_Value: HRS, 2006
- Enumerated_Domain_Value_Definition: HRS Water Consultants, Inc., written commun. (2006)
- Enumerated_Domain_Value_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Enumerated_Domain:
-
- Enumerated_Domain_Value: NHPQ, 1967
- Enumerated_Domain_Value_Definition:
-
Nelson, Haley, Patterson, and Quirk, Inc., 1967, Ground water resources of the Lost Creek drainage basin, Weld, Adams, and Arapahoe Counties, Colorado: Report prepared for the Colorado Ground Water Commission, 32 p., 3 pls.
- Enumerated_Domain_Value_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Enumerated_Domain:
-
- Enumerated_Domain_Value: Skinner, 1963
- Enumerated_Domain_Value_Definition:
-
Skinner, M.M., 1963, Artificial groundwater recharge in the Prospect Valley area, Colorado: Colorado Agricultural Experiment Station General Series 792, 89 p.
- Enumerated_Domain_Value_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Enumerated_Domain:
-
- Enumerated_Domain_Value: USGS
- Enumerated_Domain_Value_Definition:
-
Well records on file with the U.S. Geological Survey Colorado Water Science Center.
- Enumerated_Domain_Value_Definition_Source: USGS
- Overview_Description:
-
- Entity_and_Attribute_Overview:
-
Attributes of the dataset include the well identifier, well location, aquifer test or specific-capacity test date, pumping rate during specific-capacity test, drawdown measured during the specific-capacity test, the calculated specific capacity, aquifer transmissivity, saturated thickness, aquifer hydraulic conductivity, remarks, and data source.
- Entity_and_Attribute_Detail_Citation:
-
Arnold, L.R., 2010, Geographic information datasets of regolith-thickness data, regolith-thickness contours, raster-based regolith thickness, and aquifer-test and specific-capacity data for the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado: U.S. Geological Survey Data Series 507.
- Distribution_Information:
-
- Distributor:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: Ask USGS
- Contact_Position: Ask USGS -- Water Webserver Team
- Contact_Address:
-
- Address_Type: mailing address
- Address: 445 National Center
- City: Reston
- State_or_Province: VA
- Postal_Code: 20192
- Country: USA
- Contact_Voice_Telephone: 1-888-275-8747 (1-888-ASK-USGS)
- Contact_Electronic_Mail_Address:
-
<http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ds507_welltest_data>
- Resource_Description: Downloadable Data
- Distribution_Liability:
-
Although this dataset has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
- Standard_Order_Process:
-
- Digital_Form:
-
- Digital_Transfer_Information:
-
- Format_Name: shapefile
- Format_Version_Number: ArcGIS 9.3
- Format_Specification: shapefile
- File_Decompression_Technique: no compression applied
- Transfer_Size: 44.8 KB
- Digital_Transfer_Option:
-
- Online_Option:
-
- Computer_Contact_Information:
-
- Network_Address:
-
- Network_Resource_Name: <http://water.usgs.gov/GIS/dsdl/ds507_welltest_data.zip>
- Online_Computer_and_Operating_System: NA
- Offline_Option:
-
- Offline_Media: CD-ROM
- Recording_Format: ISO-9660
- Fees: None. This dataset is provided by USGS as a public service
- Ordering_Instructions: <http://ask.usgs.gov/>
- Available_Time_Period:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 2010
- Metadata_Reference_Information:
-
- Metadata_Date: 20100717
- Metadata_Review_Date: 20091030
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: Ask USGS
- Contact_Position: Ask USGS -- Water Webserver Team
- Contact_Address:
-
- Address_Type: mailing address
- Address: 445 National Center
- Address: P.O. Box 25046
- City: Reston
- State_or_Province: VA
- Postal_Code: 20192
- Country: USA
- Contact_Voice_Telephone: 1-888-275-8747 (1-888-ASK-USGS)
- Contact_Electronic_Mail_Address:
-
<http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ds507_welltest_data>
- Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
Generated by mp version 2.9.6 on Thu Sep 16 12:37:39 2010