Snake/Salt River Basin Plan - 1:24,000-scale State Engineer's Office Groundwater Wells

Metadata also available as

Frequently-anticipated questions:


What does this data set describe?

    Title:
    Snake/Salt River Basin Plan - 1:24,000-scale State Engineer's Office Groundwater Wells
    Abstract:
    Contains approximately 15,600 point locations of Wyoming well permit locations on file with the Wyoming State Engineer's Office. The wells have been located to the to the nearest 40 acre parcel. All locational information and attributes were imported from the Wyoming State Engineer's Office Well Permits Database stored in SQL-Server.

  1. How should this data set be cited?

    Engineering, Sunrise, and Wyoming Water Resources Data System (WRDS) (comp.), 2003, Snake/Salt River Basin Plan - 1:24,000-scale State Engineer's Office Groundwater Wells: Wyoming Water Development Commission, Cheyenne, Wyoming.

    Online Links:

    • WRDS@uwyo.edu

    This is part of the following larger work.

    .

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -111.046127
    East_Bounding_Coordinate: -110.141289
    North_Bounding_Coordinate: 44.131817
    South_Bounding_Coordinate: 42.538567

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: 2002
    Currentness_Reference: publication date

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Entity point (4377)

    2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.400000.
      The flattening of the ellipsoid used is 1/294.978698.

  7. How does the data set describe geographic features?

    Wells_ssdd27

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    AREA

    PERIMETER

    WELLSDD_

    WELLSDD_ID

    ID

    TNS

    TSF

    RNG

    RSF

    SEC

    QTR

    QQ

    CTY1

    TOWN

    RANGE

    PERMITNO

    ERROR

    ARVSTATUS

    USE

    PRIORITY

    YLDACT

    WELLDEPTH

    STATDEPTH

    MWBZTOP

    MWBZBOT

    LSTQTR

    MIDQTR

    FSTQTR

    IND_USE

    LONG_NAD83

    LAT_NAD83

    X_UTM12_83

    Y_UTM12_83

    Entity_and_Attribute_Overview:
    Some of the data fields included in the SEO database have been excluded from this layer. If permit ownership information, well yield data, or other more specific fields are needed they should be obtained directly from the SEO and then joined to the GIS layer. Attributes associated with point attribtue table:
    PERMIT_NO:     Wyoming SEO well permit number
    TOWNSHIP:      Number of township well is located in
    RANGE:         Number of range well is located in
    SECTION:       1 through 36: Number of section well is located in
    QQ:            Quarter-quarter section well is located in (eg. NENW)
    USEE:   DOM = domestic; STO = stock; MIS = misc; RAI = railroad
                    IRR = irrigation; MUN = municipal
    PRIORITY: Date of permit issuance
    ACTUAL_YIELD:  Yield of well in cfs (cubic feet per second)
    WELLDEPTH:    depth of well in feet
    STATDEPTH: depth to static water level in feet
    MWBZTOP:      Depth to the top of the main water bearing zone
    MWBZBOT:   Depth of bottom of the main water bearing zone
    COUNTY:	      county that the well falls in
    ERROR:         Value is 0 if well was correctly placed within
                   section. Otherwise, the value is the number of the
                   adjacent section where the well was mislocated.
                   See the Positonal Accuracy section for more details.
    
    Entity_and_Attribute_Detail_Citation: Not Available


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    Wyoming State Engineer's Office, Sunrise Engineering

  3. To whom should users address questions about the data?

    Wyoming Water Resources Data System (WRDS)
    Project Coordinator
    Dept 3943, 1000 E. University Ave
    Laramie, Wyoming 82071
    USA

    307-766-6651 (voice)
    307-766-3785 (FAX)
    wrds@uwyo.edu

    Hours_of_Service: Monday through Friday, 8 a.m. to 5 p.m., Mountain Standard Time


Why was the data set created?

This data set enables users to view the State Engineer's office groundwater well permit database spatially. Viewing the data spatially gives users the ability to perform regional analysis. This data set was created specifically for use in the Snake/Salt River Basin project. Inaccuracies associated with township-range locational descriptions as well as the problems inherent in the State Engineer's Office database exist in this data set.


How was the data set created?

  1. From what previous works were the data drawn?

    database (source 1 of 2)
    Wyoming State Engineer's Office, Unknown, Groundwater Wells Permit Database.

    Type_of_Source_Media: digital tape media
    Source_Scale_Denominator: None
    Source_Contribution: Source of township/range/section location and well attributions

    (source 2 of 2)
    BLM, 2002, BLM GCDB.

  2. How were the data generated, processed, and modified?

    Date: 2002 (process 1 of 2)
    The well permit data for the dataset existed as a SQL-Server database at the Wyoming State Engineer's Office. SEO Publishes a quarterly CD which includes their entire database organized by county. This information was sorted to only use wells for the Snake/Salt counties and added to ArcView. Next, the record number, township, range, section, and quarter quarter section were exported to a text file and run through an ArcView routine. This routine generates latitude and longitude values for the points from township/range descriptions. The routine used the BLM GCDB GIS layer as it's source PLSS information. This layer is 1:24,000-scale. Quarter Quarter sections were interpolated for this area based on section boundaries. Locational accuracy for this area is unknown and should only be assumed to be within the proper quarter quarter section.

    (process 2 of 2)
    Dataset copied.

    Data sources used in this process:

    • D:\GIS\SnakeGIS\20040510version\GW\Wells_ssdd27

  3. What similar or related data should the user be aware of?


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    Attributes are based on the State Engineer's Office data. They have not been modified and should therefore be as accurate as the source data.

  2. How accurate are the geographic locations?

    There are two sources of error associated with the transfer of location description from township/range/section/quarter/quarter to latitude/longitude. First of all, because the latitude/longitude generated is the centroid of the quarter/quarter section, the actual well location could be anywhere within the quarter/quarter section, or +/- 279 meters. Secondly, the program used to convert the TRSQQ to Lat/Long, assumes all sections are the roughly 1 square mile, but in fact many sections are irregular in size. Because of this, some well locations were inaccurately placed in an adjacent quarter-quarter section. In every case, however, the well should fall within the correct 1:24,000 scale section.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    unknown

  5. How consistent are the relationships among the observations, including topology?

    does not apply for points.


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
Use_Constraints:
This data set was created specifically for use in the Wyoming Water Development Commission's Snake/Salt River Basin Plan. This data set was designed for 1:24,000-scale regional analysis and should not be used for site-specific analysis. Inaccuracies associated with township-range locational descriptions as well as the problems inherent in the State Engineer's Office database exist in this data set.

  1. Who distributes the data set? (Distributor 1 of 1)

    Wyoming Water Resources Data System (WRDS)
    ProjectCoordinator
    Dept 3943, 1000 E. University Ave
    Laramie, Wyoming 82071
    USA

    307-766-6651 (voice)
    307-766-3785 (FAX)
    wrds@uwyo.edu

    Hours_of_Service: Monday through Friday, 8 a.m. to 5 p.m., Mountain Standard Time
  2. What's the catalog number I need to order this data set?

    SEO groundwater wells in the Snake/Salt River Basin Planning Area.

  3. What legal disclaimers am I supposed to read?

    These data were generated for use in conjunction with the Snake/Salt River Basin Plan. The Wyoming Water Development Commission (WWDC) and the Water Resources Data System (WRDS) do not warrant, endorse, or recommend the use of these data for any other purpose. The user assumes the entire risk related to the use of these data. WWDC and WRDS are providing these data "as is," and WWDC and WRDS disclaims any and all warranties, whether expressed or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 2003

Metadata author:
Sunrise Engineering
GIS Department
P.O. Box 609
Afton, Wyoming 83110
USA

307-885-8500 (voice)
307-745-7729 (FAX)

Hours_of_Service: Monday through Friday, 8 a.m. to 5 p.m., Mountain Standard Time
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

Metadata extensions used:


Generated by mp version 2.7.33 on Thu May 13 17:22:32 2004