Clark A. Niewendorp, Deborah A. Schueller, and Tim J. Welch 20070630 Unknown Release 1 vector digital data Oregon Department of Geology and Mineral Industries Digital Data Series GTILO - Release 1 Portland, OR Oregon Department of Geology and Mineral Industries Digital data at 1:100,000-scale http:/www.oregongeology.com The Geothermal Resources Information Layer for Oregon - Release 1 (GTILO - Release 1) is a geospatial database system that stores and manages Oregon's existing geothermal resource information. The compilation of this data is the latest effort by the Oregon Department of Geology and Mineral Industries to provide visual and historical data of Oregon's geothermal systems. The data sets are hot and warm springs, geothermal prospect wells, geothermal wells, and low-temperature well, which provide a framework for regional spatial analysis. The power of GIS (geographic information system format) facilitates easy access to the database and analysis for development and exploration purposes. Data sets for Known Geothermal Resource Areas and Direct-Use Application areas are included as ancillary information. A centralized database for the geothermal data in Oregon provides a powerful tool that the geothermal industry can use to reevaluate earlier geothermal exploration efforts and develop new approaches that may find hidden geothermal resources in the state. This data and the MapServer web application in which it is used were developed to illustrate and investigate the spatial patterns and previous geothermal exploration activities in Oregon. Historical overview of Oregon's geothermal systems provide requesit background for future development of geothermal power (generation of electricity) and residental/commercial direct-use applications. GTILO's data sets consist of Unknown Unknown ground condition Complete Continually -124.533 -116.533 46.2167 41.9979 none Geothermal Hot Springs Warm Springs KGRA (Know Geothermal Resource Areas) Geothermal Prospect Well Geothermal Well Water Well Low Temperature Wells none Oregon All Counties none The Oregon Department of Geology and Mineral Industries has launched a MapServer product (see Native Data Set Environment) to allow users free access to GTILO's data sets and ability to interactively view, create, print, and copy geothermal maps. Each data set is provided "as-is" without warranty of any kind, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The user assumes all responsibility for the accuracy and suitability of this data set for a specific application. In no event will the Oregon Department of Geology and Mineral Industries and/or the Oregon Department of Energy (funding source) be liable for any damages, including lost profits, lost savings, or other incidental or consequential damages arising form the use of or inability to use this data set. This data set is the result of integrating selected data primarily from the Oregon Department of Geology and Mineral Industries' (DOGAMI) unpublished and published geothermal reports and maps, accuracy of which varies according to the original source(s). Additional outside geothermal data were also compiled and incorporated into the data set. Likewise its accuracy, particularly data resolution/scale(s), varies or is entirely unknown. Acknowledgment of the Oregon Department of Geology and Mineral Industries would be appreciated in products derived from this compiled data. If the user has modified the data in any way, they are obliged to describe the types of modifications they have performed. User specifically agrees not to misrepresent this data set, nor to imply that changes they made were approved by the Oregon Department of Geology and Mineral Industries. GTILO - Release 1 is not intended for site-specific investigations. Clark Niewendorp Oregon Department of Geology and Mineral Industries Mineral Resources Geologist mailing and physical address

800 NE Oregon Street, #28, Suite 965

Portland Oregon 97232 USA 971-673-1540 971-673-1562 clark.niewendorp@state.or.us 7:30 a.m. to 4:30 p.m., Monday - Friday none none none In July 2006 the Oregon Department of Geology and Mineral Industries (The "Department") received a subcontract from the Oregon Department of Energy to compile the Department's geothermal data (see below) and update existing geothermal inventories. The prime contractor for this project is GeoPowering the West, a U.S. Department of Energy program to promote geothermal usage in the Western United States. The geothermal data in GTILO-Release 1 has been obtained from unpublished, published records of the Oregon Department of Geology and Mineral Industries and its Mineral Land Reclamation and Regulation program. We wish to acknowledge the University of Idaho, Department of Geological Sciences, Moscow, Idaho (EPSCoR "Biocomplexity in Extreme Environments" webpage (http://www.uidaho.edu/biogeochemistry/data.html) for use of their spring data from Alvord Hot Springs, Mickey Hot Springs, and Borax Hot Springs. The Great Basin Center for Energy Research, University of Nevada, Reno, also kindly allowed use to extract data from their geothermal database. Each source is identified by a reference identification code where their data is used. none PC - Windows 2000; MapInfo Pro 7.0, tab format; ESRI, .shp (shapefile); and MicroSoft, Excel 2003. The software used to build the map page is Map-Fu (http://sourceforge.net/projects/map-fu/), an open-source web mapping interface written in PHP/JavaScript that works with UMN MapServer (http://mapserver.gis.umn.edu/) software. The software was developed as part of the Oregon Sustainable Community Digital Library (OSCDL) by Academic & Research Computing at Portland State University. Clark A. Niewendorp, Deborah A. Schueller, and Tim J. Welch 20070630 Unknown Release 1 vector digital data Oregon Department of Geology and Mineral Industries Digital Data Series GTILO - Release 1 Portland, OR Oregon Department of Geology and Mineral Industries Digital data at 1:100,000-scale http:/www.oregongeology.com The accuracy of this data is dependent on (1) detail level (e.g. location information) of the source material and (2) interpretation procedures for capturing that source. Field checking of the data was not performed. Unknown See above No topology. Because the data are from multiple sources, terminology varies and similar characteristics may be described differently. Although the data set for GTILO-Release 1 is statewide in extent, coverage varies from county to county because the data collection was contingent upon a variety of published and unpublished literature sources or research programs with which we have not established ties. There are two sources of error associated with the transfer of location description form township/range/section/quarter/quarter to latitude/longitude. First, location descriptions were usually reported as township/range/section/quarter/quarter. The actual well location could be anywhere within the quarter/quarter section, or at least +/- 279 meters (assuming that all sections are the same size and shape, but not all sections are the same size or shape). Second, a well location was transferred to a U.S. Geological Survey Digital Raster Image of 1:24,000-scale quadrangle. This process involves plotting the well's location and directly comparing the location with the corresponding U.S. Geological Survey 1:24,000-scale digital quadrangle map. The map acted as a guide to adjust well locations for topographic features and in this situation, adjusting the wells location involved best judgement. Therefore, the accuracy of this data is dependent on the level of detail of the source material and the interpretation procedures for capturing that source. unknown DOGAMI - GTILO The data structure for each point and polygon coverage was created in MapInfo Pro, Version 7.0; each coverage was in turn converted into a ESRI shape file using MapInfo's Universal Transformer function thereby permitting wider access to the data. Coverages are projected into Oregon Lambert 97 International feet projection. Thermal springs and Low Temperature Wells data are included here that have temperatures of 68°F (20°C) and above. (The lower limit is based on a minimum temperature of 10°C above mean annual air temperature.) The information that has been collected on the location, temperature, and other features of thermal springs and low temperature wells has been compiled from various sources. These datasets may contain some errors, but care has been taken to prevent duplications and omissions, so far as possible. The sources of information are indicated by reference identification codes, which correspond to the same codes in a separate annotated bibliography (see http://www.oregon.geology.com). Hot and Warm Spring location data for Oregon- In completing the hot and warm spring inventory, all available published data prior to and including Black (1994) were utilized. Then, digital information on Oregon's thermal springs (and well data) was checked in the following databases: - Geo-Heat Center's Western States Geothermal Databases CD. - Southern Methodist University (SMU) Geothermal Laboratory's Western Geothermal Areas Database of the U.S. - Geothermal information from the United States Geological Survey (USGS). - The Great Basin Center for Geothermal Research, University of Nevada, Reno. Each thermal spring's geospatial coordinates (latitude and longitude was checked for accuracy by overlaying with mosaicked U.S. Geological Survey, 1:24,000-scale digital raster graphic (DRG) of scanned topographic quadrangle maps. If the heads-up display revealed a discrepancy between the geospatial position of the spring and the spring's mapped location on a quadrangle map, then the spring's coordinates were modified to match the map overlay. As mentioned above, thermal springs are included here that have temperatures of 68° F (20° C) and above. However, the use of the term "warm" in the spring's name has led to listing them in this database. In addition, a characteristic of thermal springs in Oregon is that they usually represent a group of affiliated springs. Thus, the number of thermal springs in GTILO-Release 1 is not a definite figure. The reason for saying this is that in previous studies, it was customary to count each spring group but not every spring in that group. Examples of thermal springs that constitute "one" group of hot springs with many separate springs in it are: Borax Springs, Mickey Springs, and Alvord Springs. However, the University of Idaho (see Data Set Credit) used a different approach and counted each spring in those spring groups. For this compilation, we did the same but only when a spring, which would have been otherwise included in a group, was separately shown on a U.S. Geological Survey 1:24,000-scale quadrangle map. Geothermal Prospect Well data set is the addition of 1019 geothermal prospect wells drilled in Oregon. Purpose of the data set is to provide the public with geothermal exploration data from those wells, most of which are temperature observation data gathered during the 1970s and 1980s. This data are contained in the unpublished permit files from the Oregon Department of Geology and Mineral Industries' Mineral Land Reclamation and Regulation program. We cannot guarantee that this data set is complete or accurate. Many wells had only cadastral location data. Converting this information into a spatial GIS dataset involved heads-up digitizing on the screen based on mosaicked U.S. Geological Survey, 1:24,000-scale digital raster graphic (DRG) of scanned topographic quadrangle maps. Geothermal Well data set is the addition of approximately 129 geothermal wells (drilled or proposed) in Oregon. Purpose of the data set is to provide the public with geothermal exploration data from those wells. These wells were drilled in order to gather geothermal observation data and many have accompanying unpublished reports and geophyiscal logs. This data are contained in the unpublished permit files of the Oregon Department of Geology and Mineral Industries' Mineral Land Reclamation and Regulation program. We cannot guarantee that this data set is complete or accurate. Many wells had only cadastral location data. Converting this information into a spatial GIS dataset involved heads-up digitizing on the screen based on mosaicked U.S. Geological Survey, 1:24,000-scale digital raster graphic (DRG) of scanned topographic quadrangle maps. Black, G.L., 1994 (Low-temperature geothermal database for Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-94-08 178 p., 5 location maps.) compiled a low-temperature geothermal databse, of which we have utiliized their well data set (thermal water 20°C and above) "as is" in this compilation. Known Geothermal Resource Areas (KGRA's) - This coverage (vector polygon file) shows the area of significant lateral extent favorable for discovery and development of local sources of low-temperature (90°C and above) water. Areas are defined on the basis of thermal springs, wells, and geohydrologic settings generally favorable for recovery of thermal water. Existing knowledge does not in general permit the inference that thermal water may be found everywhere within the depicted areas, nor do the boundaries represent certain knowledge of the areal extend of the geothermal systems. KGRAs were derived from Classification of Public Land Valuable for Geothermal Steam and Associated Geothermal Resources, U.S. Geologic Survey Circular 647 (1971), but the source of the geospatial coverage is unknown and provided here "as is." It is not complete and as such, it will continue to undergo review, revision, or possibly eliminated. Direct-Use Areas - This coverage shows areas which, because of their geologic history and similarity to areas with know geothermal/hydrothermal systems, are expected to contain geothermal resources suitable for direct heat applications (20°C and above) . Purpose of the coverage is to provide a visual representation of existing geothermal resources and potential areas for residential and commercial direct use applications. Areas are defined on the basis of thermal springs, wells, and geohydrologic settings generally favorable for recovery of thermal water. Existing knowledge does not in general permit the inference that thermal water may be found everywhere within the depicted areas, nor do the boundaries represent certain knowledge of the areal extend of the geothermal systems. This spatial information was derived from an unknown source and provided here "as is." It is not complete and as such, it will continue to undergo review, revision, or possibly eliminated. DOGAMI - GTILO 2006- 2007 Clark Niewendorp Oregon Department of Geology and Mineral Industries Mineral Resources Geologist mailing and physical address

800 NE Oregon Street, #28, Suite 965

Portland Oregon 97232 USA 971-673-1540 971-673-1562 clark.niewendorp@state.or.us 7:30 a.m. to 4:30 p.m., Monday - Friday Unknown Vector G-polygon 12 Point 649 Point 1019 G-polygon 62 Point 129 Point 1577 Lambert Conformal Conic 43 45.5 -120.5 41.75 1312335.958 0 Distance and Bearing 0.01 0.01 Degrees and decimal minutes North Geodetic international feet North American Datum of 1983 Geodetic Reference System 80 6378137 298.257 National Geodetic Vertical Datum of 1929 feet Implicit coordinate Hot_and_Warm_Springs Location point features and attribute fields for 649 hot and warm springs in Oregon Oregon Department of Geology and Mineral Industries Class Thermal spring classification Unknown Sprhi Code for springs that have surface temperatures greater than 25° C (Celsius) - not associated with reservoir temperature Unknown sprlo Code for springs that have surface temperatures of 25° C (Celsius) or less - not associated with reservior temperature Unknown nd No data, indicates the absence of data Unknown County County in Oregon where the hot and warm spring is found, single county entry Unknown Direct_heat Areas classified as being valuable prospectively for associated geothermal resources Classification of Public Land Valuable for Geothermal Steam and Associated Geothermal Resources, U.S. Geologic Survey Circualr 647 (1971). na No available E-w Range character Unknown E East Unknown W West Unknown Flow Thermal spring flow Unknown Positive real numbers Unknown Unknown -1 Negative one used in integer field to indicate no data Unknown KGRA Areas classified by the U.S. Geological Survey as Known Geothermal Resources Areas (KGRA) Classification of Public Land Valuable for Geothermal Steam and Associated Geothermal Resources, U.S. Geologic Survey Circular 647 (1971) In general, KGRA boundaries shown are those in existence in mid-1976 are subject to change na Not available 1978 Present Latdec Latitude in decimal degree or Y coordinate for center point of each point MapInfo Pro's Centroid Y function Positive real numbers Unknown U.S. Geological Survey Longdec Longitude in decimal degree or X coordinate for center point of each point MapInfo Pro's Centroid X function Negative real numbers Unknown U.S. Geological Survey Map_ID The thermal springs are numbered according to a system based on a two character county code followed by sequential numbering and, in some cases, a letter Oregon Department of Geology and Mineral Industries N_s Township direction character Unknown N North Unknown S South Unknown Name The name of low- or high-temperature thermal spring Place name on U.S. Geological Survey quadrangle map or name referenced in various published and unpublished sources Rate English measure of capacity Unknown gpm Gallons Per Minute Unknown l/min Liters Per Minute Unknown nd No data, indicates the absence of data. Unknown Ref_Id Reference Identification Code For Ref_Id codes see GTILO - Release 1 at www.oregongeology.com; topo = U.S. Geological Survey 1:24,000-scale quadrangle Four letters of the first author's last name, followed by author's first and middle initial(s) (if given), and then by date of publication. Example is NiewCA2007 Rge Range number (Rge) Public Land Survey system Real positive numbers A valid range for Oregon Unknown Sec Section number Public Land Survey system 1-36 Unknown Unknown Secfrac The letters that follow the subdivision of township, range, and section system Public Land Survey system Three letters indicate respectively the 1/4, 1/16, and 1/64 quadrant within the section: A = northeast quadrant, B = northwest quadrant, C = southwest quadrant, and D = southeast quadrant Temp_c Temperature of the surface water measured in degree C (Celsius) usually at discharge point Previously published values are used when available nd No data, indicates absence of data Unknown Positive real numbers Unknown Unknown dry Dry, indicating absence of water Unknown Temp_f Temperature measured at the surface in Degree F (Fahrenheit), values derived from Temp_c Unknown nd No data, indicates absence of data Unknown Positive real numbers Unknown Unknown dry Dry, indicating absence of water Unknown Topo100k U.S. Geological Survey 1:100,000-scale (100K) topographic map in Oregon where thermal spring is located U.S. Geological Survey Topo24k U.S. Geological Survey 1:24,000-scale (24K) topographic map in Oregon where thermal spring is located U.S. Geological Survey Twp Township number (Twp) Public Land Survey system Real positive numbers Valid Oregon Township Number Unknown Type Feature description Unknown S Character code for spring Unknown F Character code for fumeralo (steam vent) Unknown Geothermal_Prospect_Wells Location point features and attribute fields for 1018 geothermal prospect wells drilled in Oregon. Oregon Department of Geology and Mineral Industries API The API Bulletin D12A, The API Well Number and Standard State and County Codes American Petroleum Institute Real positive numbers Unknown Unknown nd No data, indicates the absence of data Comment Comment field contains information related to drilling/abandonment conditions or hydrologic conditions, and in some cases comments on the geothermal area with which the site is associated. Also, the field contains unique code for the reference publication that are tabulated on GTILO's website Oregon Department of Geology and Mineral Information Company Name of geothermal company or operator Unknown Compl_D Completion date of well Oregon Department of Geology and Mineral Industries nd No data, indicates the absence of data unknown Date Format - mm/dd/yyyy Unknown County County Oregon where the geothermal prospect well is found, single county entry Unknown Date_Perm Date the Oregon Department of Geology and Mineral Industries - Mineral Land Reclamation and Regulation program issued a geothermal prospect well permit Oregon Department of Geology and Mineral Industries nd No data, indicates absence of data Unknown Date Format - mm/dd/yyyy Unknown Date_Susp Date the Oregon Department of Geology and Mineral Industries - Mineral Land Reclamation and Regulation program closed the geothermal prospect well permit Oregon Department of Geology and Mineral Industries nd No data, indicates absence of data Unknown Date Format - mm/dd/yyyy Unknown E_w Range direction character Unknown E East Unknown W West Unknown Flow Flow of water from well Unknown Positive real numbers Unknown Unknown nd No data, indicates absence of data Unknown Latdec Latitude in decimal degree or Y coordinate for center point of each point MapInfo Pro's Centroid Y function Positive real numbers Unknown U.S. Geological Survey Log_type Type of well log - lithologic, temperature and depth, geophysical Unknown Longdec Longitude in decimal degree or X coordinate for center point of each point MapInfo Pro's Centroid X function Negative real numbers Unknown U.S. Geological Survey N_s Township direction character Unknown N North Unknown S South Unknown Permit_No Permit number assigned to the well/project by the Oregon Department of Geology and Mineral Industries - Mineral Land Reclamation and Regulation program Oregon Department of Geology and Mineral Industries, Mineral Land and Reclamation and Regulation program Two characters followed by positive real numbers GP = geothermal prospect Oregon Department of Geology and Mineral Industries Project Project name assigned to the geothermal prospect well Project name assigned by either geothermal company/operator or the Oregon Department of Geology and Mineral Industries Quad100k U.S. Geological Survey 1:100,000-scale (100K) topographic map in Oregon where the geothermal prospect well is located U.S. Geological Survey Quad24k U.S. Geological Survey 1:24,000-scale (24K) topographic map in Oregon where the geothermal prospect well is located U.S. Geological Survey Rate English measure of capacity Unknown gpm Gallons Per Minute Unknown l/min Liters Per Minute Unknown nd No data, indicates the absence of data Unknown Rge Range number (Rge) Unknown Real positive numbers A valid range for Oregon Unknown S_T_R Section, Township, Range Public Land Survey system Sec Section number Unknown Positive real numbers 1-36 Unknown Secfrac The letters that follow the subdivision of township, range, and section system Unknown Three letters indicate respectively the 1/4, 1/16, and 1/64 quadrant within the section: A = northeast quadrant, B = northwest quadrant, C = southwest quadrant, and D = southeast quadrant Site Name or number of prospect well Geothermal company or operator naming system Start_D Start date of well Oregon Department of Geology and Mineral Industries nd No data, indicates absence of data Unknown Date Format - mm/dd/yyyy Unknown Status Drilling status of well Oregon Department of Geology and Mineral Industries Drilled TD_ft Total depth of well in feet Oregon Department of Geology and Mineral Industries Real positive numbers Unknown Unknown TD_m Total depth in meters, values derived from TD_ft Unknown Real positive numbers Unknown Unknown Temp_c Temperature of water in the well measured in degree C (Celsius) Unknown Twp Township number (Twp) U.S. Geological Survey Real positive numbers Valid Oregon Township Number Unknown W_depth_ft Depth to top of first reported water producing zone, values in feet Unknown Real Positive Numbers Unknown Unknown W_depth_m Depth to top of first reported water producing zone, values derived from W_depth_ft Unknown Real positive numbers Unknown Unknown W_Type Type or purpose of Well type Unknown Temperature KGRAORLAM97 Polygon coverage and attribute fields for 12 features in Oregon. U.S. Geological Survey established KGRA names in 1971 as part of the Federal Geothermal Leasing Act Acres Total acres (Cartesian) tabulated for each KGRA. MapInfo computed Chem_des htm address for pop-up information window - chemistry Oregon Department of Geology and Mineral Industries nd No data, indicates absence of data Unknown County Oregon counties where the KGRA is found, single and multiple county entries (comma delimited). Unknown ID Auto number for KGRA MapInfo Pro Integer Positive real numbers MapInfo auto number KGRA Name of Known Geothermal Resource Areas (KGRA) as defined by U.S. Geological Survey U.S. Geological Survey established KGRA names in 1971 as part of the Federal Geothermal Leasing Act KGRA_des htm file address for pop-up information window describing the characteristics of the KGRA Oregon Department of Geology and Mineral Industries nd No data, indicates the absence of data Unknown Latitude Latitude in decimal degree or Y coordinate for center point of each point MapInfo Pro's Centroid X function Positive real number U.S. Geological Survey Longitude Longitude in decimal degree or X coordinate for center point of each point MapInfo Pro's Centroid X function Negative real number U.S. Geological Survey Topo100K Name of 1:100,000-scale topographic quadrangle, single and multiple quad entries (comma delimited) U.S. Geological Survey Direct_Heat_ApplORLAM97 Polygon coverage and attribute fields for 62 features in Oregon. Acres Total acres (Cartesian) for each Direct Use application area. MapInfo computed Chem_des htm address for pop-up information window for water chemistry Oregon Department of Geology and Mineral Industries nd No data, indicates absence of data Unknown County Oregon Counties where the area of thermal water is found, single and multiple county entries (comma delimited). Unknown Direct_app Name of area known or inferred to be underlain at shallow depths (less than a 1000 m) by thermal water of sufficient temperature for direct heat applications (naming source is unknown). Unknown Direct_des htm address for pop-up information window describing the characteristics of the Direct Use Application area Oregon Department of Geology and Mineral Industries nd No data, indicates absence of data Unknown ID Unique Identification number MapInfo auto number Real positive numbers 1-67 Unknown Geothermal_Wells Location point features and attribute fields for 123 geothermal wells (drilled or proposed) in Oregon. Oregon Department of Geology and Mineral Industries API The API Bulletin D12A, The API Well Number and Standard State and County Codes American Petroleum Institute Real positive numbers Unknown Unknown nd No data, indicates the absence of data Unknown Comment Comment field contains information related to drilling/abandonment conditions or hydrologic conditions, and in some cases comments on the geothermal area with which the site is associated. Also, the field contains unique code for the reference publication that are tabulated on GTILO's website Unknown Company Name of geothermal company or operator Unknown County County Oregon where the geothermal well is found Unknown Date_Perm Date the Oregon Department of Geology and Mineral Industries - Mineral Land Reclamation and Regulation program issued a geothermal well permit Oregon Department of Geology and Mineral Industries nd No data, indicates absence of data Unknown Date Format - mm/dd/yyyy Unknown Date_Susp Date the Oregon Department of Geology and Mineral Industries - Mineral Land Reclamation and Regulation program the geothermal well permit Oregon Department of Geology and Mineral Industries nd No data, indicates absence of data Unknown Date Format - mm/dd/yyyy Unknown E_w Range direction character Unknown E East Unknown W West Unknown Flow Flow of water from well Unknown Positive real numbers Unknown Unknown nd No Data, indicates the absence of data. Unknown Latdec Latitude in decimal degree or Y coordinate for center point of each point MapInfo Pro's Centroid Y function Real positive number Unknown U.S. Geological Survey Log_type Type of well log - lithologic, temperature and depth, geophysical Unknown Longdec Longitude in decimal degree or X coordinate for center point of each point MapInfo Pro's Centroid X function Real negative number Unknown U.S. Geological Survey N_s Township direction character Unknown N North Unknown S South Unknown Open_File Date well records released to public Oregon Department of Geology and Mineral Industries nd No data, indicates absence of data Unknown Date Format - mm/dd/yyyy Unknown Permit_No Permit number Permit number assigned to the well/project by the Oregon Department of Geology and Mineral Industries - Mineral Land Reclamation and Regulation program Character followed by positive real numbers G = geothermal Unknown Project Project name assigned either by geothermal company/operator or the Oregon Department of Geology and Mineral Industries Unknown nd No data, indicates absence of data Unknown Quad100k U.S. Geological Survey 1:100,000-scale (100K) topographic map in Oregon where the geothermal well is located. U.S. Geological Survey Quad24k U.S. Geological Survey 1:24,000-scale (24K) topographic map in Oregon where the geothermal prospect well is located. U.S. Geological Survey Rate English measure of capacity Unknown l/min Liters Per Minute Unknown gpm Gallons Per Minute Unknown nd No data, indicates the absence of data. Unknown Rge Range number (Rge) Unknown A valid range for Oregon E East Unknown W West Unknown S_T_R Section, Township, Range Public Land Survey system Sec Section number Unknown Positive real numbers 1-36 Unknown Secfrac The letters that follow the subdivision of township, range, and section system. Unknown Three letters indicate respectively the 1/4, 1/16, and 1/64 quadrant within the section: A = northeast quadrant, B = northwest quadrant, C = southwest quadrant, and D = southeast quadrant Site Name or number of well Name assigned to well by geothermal company or operator Status Drilling status of well Oregon Department of Geology and Mineral Industry TD_ft Total depth in feet Unknown Positive real numbers Unknown Unknown TD_m positive real numbers Unknown Unknown Temp_c Temperature of water in the well measured in degree C (Celsius). Unknown Real positive numbers Unknown Unknown nd No data, indicates absence of data Unknown Twp Township number (Twp) U.S. Geological Survey Real positive numbers Valid Oregon Township Number Unknown W_depth_ft Depth to top of first reported water producing zone, values in feet Unknown Real positive numbers Unknown Unknown W_depth_m Depth to top of first reported water producing zone, values derived from W_depth_ft Unknown Real positive numbers Unknown Unknown W_Type Type or purpose of well Unknown Temperature LowTempWellORLam97 Location point features and attribute fields for 1577 Low Temperature Wells in Oregon. Oregon Department of Geology and Mineral Industries API The API Bulletin D12A, The API Well Number and Standard State and County Codes American Petroleum Institute Real positive numbers Unknown Unknown nd No data, indicates absence of data Unknown Comments Comment field contains information related to drilling/abandonment conditions or hydrologic conditions, and in some cases comments on the geothermal area with which the site is associated. Also, the field contains unique code for the reference publication that are tabulated on GTILO's website Unknown Company Name of geothermal company or drilling company who drilled the well Unknown County County Oregon where the low temperature well is found, single county entry Unknown Date_Perm Date the Oregon Department of Geology and Mineral Industries - Mineral Land Reclamation and Regulation program issued a permit to drill a geothermal well or prospect well Oregon Department of Geology and Mineral Industries nd No data, indicates absence of data Unknown Date Format - mm/dd/yyyy Unknown Date_Susp Date the Oregon Department of Geology and Mineral Industries - Mineral Land Reclamation and Regulation program closed the permit to drill a geothermal well or prospect well Oregon Department of Geology and Mineral Industries nd No data, indicates absence of data Unknown Date Format - mm/dd/yyyy Unknown E_w Range direction character Unknown E East Unknown W West Unknown Flow Flow of water from well Unknown Positive real numbers Unknown Unknown nd No data, indicates the absence of data Unknown Latdeg Latitude in decimal degree or Y coordinate for center point of each point MapInfo Pro's Centroid Y function Real positive numbers U.S. Geological Survey Unknown Log_type Log type Unknown Longdeg Longitude in decimal degree or X coordinate for center point of each point MapInfo Pro's Centroid X function Real negative numbers U.S. Geological Survey Unknown N_s Township direction character Unknown N North Unknown S South Unknown Permit_No Permit number assigned to the well nd No data, indicates absence of data Unknown GP GP = geothermal prospect well followed by the permit number Unknown G G = geothermal well followed by the permit number Unknown Project nd No data, indicates absence of data Unknown Quad100K U.S. Geological Survey 1:100,000-scale (100K) topographic map in Oregon where the low temperature well is located. U.S. Geological Survey Quad24K U.S. Geological Survey 1:24,000-scale (24K) topographic map in Oregon where the geothermal well is located. U.S. Geological Survey Rate English measure of capacity Unknown gpm Gallons Per Minute Unknown l/min Liters Per Minute Unknown nd No data, indicates the absence of data. Unknown Rge Range number (Rge) Unknown Real Positive Numbers A valid range for Oregon Unknown S_T_R Section, Township, Range Public Land Survey system Sec Section number Unknown Real Positive Number 1-36 Unknown Secfrac The letters that follow the subdivision of township, range, and section system. Unknown Three letters indicate respectively the 1/4, 1/16, and 1/64 quadrant within the section: A = northeast quadrant, B = northwest quadrant, C = southwest quadrant, and D = southeast quadrant. Site Name or number of well Unknown Status Drilling status of well Drilled TD_ft Total depth in feet Unknown Real Positive Numbers Unknown Unknown TD_m Total depth in meters, values derived from TD_ft Unknown Real Positive Numbers Unknown Unknown Temp_c Temperature of water in the well measured in degree C (Celsius) Unknown Real positive number Unknown Unknown W Warm Unknown Twp Township number (Twp) U.S. Geological Survey Real Positive Numbers Valid Oregon Township Numbers Unknown W_depth_ft Depth to top of first reported water producing zone, values in feet Unknown Real positive numbers Unknown Unknown W_depth_m Depth to top of first reported water producing zone, values derived from W_depth_ft Unknown Real positive numbers Unknown Unknown W_Type Type or purpose of well Unknown W Water well Unknown The Geothermal Resources Information Layer for Oregon consists of six separate GIS data layers created in MapInfo Pro, Version 7.0 format with both point and polygon topology. The data is also provided as shapefiles. Number of attributes varies for each coverage For further information about GTILO - Release 1 in particular, please contact the Oregon Department of Geology and Mineral Industries or visit our website at the following URL: http://www.oregongeology.com Don Haines Oregon Department of Geology and Mineral Industries Nature of the Northwest, Manager mailing and physical address

800 NE Oregon St., Suite 177

Portland Oregon 97232 Multnomah 503-872-2752 http://www.naturenw.org/ 9:00 a.m. to 5:00 p.m. This data set is provided "as-is" without warranty of any kind, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The user assumes all responsibility for the accuracy and suitability of this data set for a specific application. In no event will the Oregon Department of Geology and Mineral Industries and/or the Oregon Department of Energy be liable for any damages, including lost profits, lost savings, or other incidental or consequential damages arising from the use of or inability to use this data set. CD-ROM is $25.00 Contact the Nature of the Northwest Order usually processed the same day received; mailed first class Paper copy not available none none none none 20070630 20070630 Clark Niewendorp Oregon Department of Geology and Mineral Industries Mineral Resources Geologist mailing and physical address

800 NE Oregon Street, #28, Suite 965

Portland Oregon 97232 USA 971-673-1540 971-673-1562 clark.niewendorp@state.or.us 7:30 a.m. to 4:30 p.m., Monday - Friday FGDC Content Standards for Digital Geospatial Metadata local time none none Unclassified none