IDENTIFICATION_INFORMATION
Citation: Citation_Information: Originator: Zehner, Richard Publication_Date: 20070621 Title: Great Basin Water Wells Edition: Geospatial_Data_Presentation_Form: Map Publication_Information: Publication_Place: Reno, Nevada Publisher: Great Basin Center for Geothermal Energy Other_Citation_Details: Data Sources: Arizona Data: Arizona Dept. Water Resources CD California Data: Unpublished dataset from the California Division of Water Resources Idaho Data: Source: ID Dept. of Water Resources web site at http: HTTP://www.idwr.idaho.gov/ftp/gisdata/GISScripts/downloadform.asp?path=Spatial/Wells/WellConstruction&package=wells.pkg Nevada Data: Source: water well database available at http: HTTP://water.nv.gov/Engineering /wlog/ wlog.cfm Oregon Data: Source: Idaho Division of Water Resources GRID water well database Utah Data: Source: data is available on line at http: HTTP://www.waterrights.utah.gov/gisinfo/wrcover.asp Wyoming Data: Custom dataset provided by the Wyoming Oil and Gas Division Online_Linkage: HTTP://www.unr.edu/Geothermal/ Larger_Work_Citation: Citation_Information: Originator: Publication_Date: Title: Publication_Information: Publication_Place: Publisher: Online_Linkage: Description: Abstract: This shapefile contains information on water wells drilled in the Great Basin, for purposes of geothermal exploration. The data collected have varying degrees of accuracy, and come from published and unpublished State sources. Purpose: Geothermal ExplorationSupplemental_Information:
| STATE | NAME | RECORDS | ACCURACY | TEMP DATA | DEPTH DATA |
| Arizona | Water wells | 163,581 | QQ Section | No | Yes |
| California | Water wells | 34,413 | Section | No | No |
| California | Monitoring wells | 42,505 | QQ Section | No | No |
| Idaho | Water wells | 57,929 | Q Section | No | Yes |
| Nevada | Water wells | 95,513 | QQ Section | Yes | Yes |
| Oregon | Water wells | 215,017 | QQ Section | No | Yes |
| Utah | Water wells | 108,905 | Q Section | No | No |
| Wyoming | Water wells | 134,903 | QQ Section | No | Yes |
State Water Well data comes from a variety of sources. They include:
Arizona Wells: Source: Arizona Dept. Water Resources CD. DBF from a shapefile was uploaded into ArcView, converted to shapefile, and projected from UTM 12 NAD27) to Lambert.
California Data: Data was gratefully provided by Eric Senter of the California Division of Water Resources (916-651-9648; esenter@water.ca.gov). The data consists of two files: one of water wells, the other of California Division of Water Resources monitoring wells. The water well data set has locations accurate to the nearest section. Because in California water well locations are not considered public knowledge, a data set of points was provided representing those (cadastral) sections that have at least one water well within it. No other data on these wells is available. The points are the centroids of the sections. This shapefile was created by joining the cadastral information (Township, Range, Section) to the dbf of the cadastral shapefile GBplss (available at http: HTTP://www.unr.edu/Geothermal/datalist.html) in Microsoft Access. By setting Township, Range, Section, and Meridian fields of the cadastral table equal to that of GBplss, a query was created that contained the ID number of the appropriate section in the shapefile. By joining this query to GBplss in Arcview, the sections containing water wells could be selected. An Arcview utility then created a shapefile of centroids to the points of these sections. The DDWR monitoring well data are more accurate, and the location information was converted to shapefile and projected from DD NAD27 to Lambert.
IDAHO Data: Source: ID Dept. of Water Resources web site at http://www.idwr.idaho.gov/ftp/gisdata/GISScripts/downloadform.asp?path=Spatial/Wells/WellConstruction&package=wells.pkg.
The location data is in cadastral only, but is presumably accurate to the nearest quarter-quarter section. The steps to convert it into a shapefile include: 1. In ArcView, create polygon centroids for GBPLSS.shp so that each section polygon has a field with Lambert x any y coordinates for its centroid. 2. Upload GBPLSS.shp DBF file into Access database. 3. Upload ID water data into the Access database. The file is too large to fit into one Excel spreadsheet (83,191 records), so this file was split into two and later recombined, following the same procedure. In spreadsheet, split cadastral data into component fields identical to GBplss dbf file using 'mid' and 'left' functions, including quarter and quarter-quarter section information. Change numbers to number type. 4. Create query to join GBPLSS and IDWells tables together with Township, Range, Section, TownNS, RangeEW, and for GBPLSS Meridian = "Boise". Join has 57,929 records (GBPLSS does not extend to northern Idaho outside of Great Basin and hence samples outside GB area are not included in query. Outlying samples are from northern Idaho). Include in fields the x and y coordinates of the polygon centroid, along with the other well data from the Idaho well file. Download xls file containing these records into C:\WellData\Waterwells\IDWells \IDWellsSmall.xls. 5. Sort on Quarter section, Q-Q Section, Q-Q-Q Section. 6. Using a conversion of 3.28 feet/meter, a mile is ~1610 m and distance from mile centroid to centroid of quarter sections is +/- 402.4 m. Distance from these to centroids of Q-Q sections is 201.2 m. Using the sorted spreadsheet, I create an algorithm that adds and subtracts distance in meters of Q and Q-Q centroids from the section centroid. 7. Create 'Easting' and 'Northing' fields with centroid information and added/subtracted offsets for quarter-quarter sections. Save as dbf, upload to ArcView.
Nevada Data: Source: water well database available at http: HTTP://water.nv.gov/Engineering /wlog/ wlog.cfm, downloaded late January 2006. Table was downloaded table as dbf file, well and water table depth were converted from feet to meters. The file was then uploaded to ArcView, converted to shapefile and projected from UTM NAD27 to Lambert. Some funky attribute fields removed.
Oregon Data: Source: Idaho Division of Water Resources containing information from their GRID water well database for eastern and south-central Oregon, current as of 2004. The file contains data on 381,288 wells. Location information is cadastral only. Luckily, the cadastral data was already split into separate fields (township, township NS, range, range EW, section, quarter section, quarter-quarter section) ready for entry. The cadastral information was converted to Lambert coordinates using a technique similar to that described in the Idaho dataset (see above). However, a portion of central Oregon has many township-ranges with multiple sections of the same number, causing multiple instances of the same section when joined to the GBplss table. To rectify the problem, I most of the section polygons in central Oregon that contained this data were simply deleted, so the well database contains a large irregular hole in central Oregon. The final table has 215,017 records. Depth to water table and well depth were converted to meters, the file was converted to shapefile.
UTAH Data: Source: data is available on line at http: HTTP://www.waterrights.utah.gov/gisinfo/wrcover.asp ; additional documentation in the Utah data folder wrpod.htm. Water well data is contained in a file called wrpod.exe, which unzips into a .dbf file and a few explanatory ones such as the htm file. The data was downloaded in late January, 2006. The dbf file contains the location of "all" water well data for Utah (241,964 records), comprising springs, streams, wells, diversion points, water right claims, etc. According to "wrpod.htm", what we seek is the "Underground" category. This "underground" water includes data that needed to be weeded out, such as: mine tunnels, reservoir/dam tunnels, sumps, "horizontal wells", etc. One field in the dbf file, 'Source' gives a lot of information for removal. Besides removing the above, all instances of spring, creek, or river data were removed unless it mentioned that wells were present, under the assumption that somebody filling out a form checked "Underground" but was in fact spring or surface water data. The dbf file was uploaded into a separate Access database in C:\waterwells\Utahdata\UtahWellsJan06 as the table 'OrigDatawrpod', from that I built a query that removed most (not all) of the extraneous underground information (now 127,431 records). This information was downloaded into 3 Excel spreadsheets to remove the rest and build the correct cadastral fields to join with the GBPPLSS shapefile. The cadastral information was converted to Lambert coordinates using a technique similar to that described in the Idaho dataset (see above). The location data is coarser than Idaho: about half the values have quarter section data and there is no quarter-quarter section information. The completed spreadsheets were then combined into a single table, and converted to shapefile.
WYOMING Data: Source
Custom dataset provided by the Wyoming Oil and Gas Division
(which also keeps water well data) in August 2006. The
contains data for ~130,000 water wells in Wyoming, with
cadastral location data only, with quarter-quarter section
accuracy. The cadastral information was converted to
Lambert coordinates using a technique similar to that
described in the Idaho dataset (see above). The data was
then converted to shapefile.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2005
Ending_Date: 2006
Currentness_Reference:
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.9159
East_Bounding_Coordinate: -110.4589
North_Bounding_Coordinate: 43.8892
South_Bounding_Coordinate: 34.5205
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: water
Theme_Keyword: wells
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Great Basin
Place_Keyword: Arizona
Place_Keyword: California
Place_Keyword: Idaho
Place_Keyword: Nevada
Place_Keyword: Oregon
Place_Keyword: Utah
Place_Keyword: Wyoming
Access_Constraints:
None
Use_Constraints:
This data is for general informational
purposes only and neither the University of Nevada, Reno,
the Great
Basin Center for Geothermal Energy, nor its
affiliated organizations take any responsibility for its contents.
Furthermore, it is emphasized that these are regional scale
maps only,
and local conditions may vary considerably over that
indicated by this
information.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Great Basin Center for Geothermal Energy
Contact_Person: Richard Zehner
Contact_Position: Research Scientist, Assistant GIS Specialist
Contact_Address:
Address_Type: mailing and physical address
Address: MS 172, University of Nevada Reno
City: Reno
State_or_Province: NV
Postal_Code: 89557
Country: USA
Contact_Voice_Telephone: 775-784-7055
Contact_Facsimile_Telephone: 775-327-5801
Contact_Electronic_Mail_Address: zehner@unr.edu
Hours_of_Service: M-F 8-5
Native_Data_Set_Environment:
ArcView version 3.3 shapefile format
c:\welldata\waterwellslambert\gbwaterwells.shp
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