Program Background - ADWR has two key groundwater well data sets for the state of Arizona. The 'Wells 55 Registry' corresponds with this WellRegistry GIS layer and contains all wells registered in the state. The database was originally created in 1980 to store registration information submitted by well owners and drillers. It contains over 200,000 well records. A second key well data set is also maintained at ADWR. The Groundwater Well Site Inventory (GWSI), is a statewide database that contains well locations, construction, and water level measurements for wells that have actually been located and sampled in the field (originally by the USGS and since 1990 by ADWR). The GWSI database contains over 45,000 well records. Of those, approximately 24,700 have been ‘matched’ to the Wells 55 Registry and therefore have a 'Wells 55 Registry ID'.Purpose and intended use - This data is used by both internal and external customers and is most commonly used to search for registered wells within the State.Data creation methodologies, processing, and quality - The database was originally created in 1980 to store registration information submitted by well owners and drillers. New wells are added as driller logs and reports are received.Data limitations – Please refer to ADWR Data Disclaimer. This data set contains data submitted by well owners and well drillers. Data availability is therefore limited to data provided by the public. The wells mapped to the centroid of the containing Cadastral (normally Quarter-Quarter-Quarter Section). More precise user-submitted locations are not contained in this GIS layer, however they are stored internally and are available to the public upon request for approximately 20% of the wells.Currency – Updated dailyContact – Manager, Groundwater Permitting and Wells, (602)771-8527Use limitations – Please refer to ADWR Data Disclaimer.Attribute information - programADWR program codeREGISTRY_IDUnique identifier for well record in the Wells 55 Registry database.owner_nameThe registered owner of the wellrgr_pump_dataWas water removed before 2008 or was water received in the last yearwelltypeType of wellwell_type_groupWell Type groupdlic_numMost recent driller's license numberapprovedThe earliest date in which drilling was approvedinstalledThe earliest date of well constructionwell_depthThe depth of the well in feetwater_levelThe reported depth to water in feetcasing_depthThe depth of the well's casing in feetcasing_diameterThe diameter of the well's casing in inchescasing_typeThe type of casing usedpump_typeThe type of pump usedpump_powerThe method of how the pump is poweredpumprateThe rated pumping capacity in gallons per minutetestedrateThe tested pumping capacity in gallons per minutedraw_downThe amount of water that pumping has lowered the water level in feetcompletion_report_statusStatus for reporting the completion level of the well (X-Completed, I-Incomplete, A-Abandoned, N-no report required)drill_logThe driller log's received status (X-Completed, I-Incomplete, A-Abandoned, N-no report required)well_cancelledThis indicates if the well was cancelledCadastralCadastral code indicating township, range, section location information. Includes statewide quadrant (First letter - A, B, C, D), and quarter, quarter, quarter section details (Last three letters)CountyCounty in which the well is locatedWatershedWatershed in which the well is locatedbasin nameGroundwater basin in which the well is locatedsubbasin nameGroundwater subbasin in which the well is locatedAMAActive Management Area in which the well is located if applicablequad codeArizona Public Land Survey System (PLSS) is divided into 4 statewide quadrants (A, B, C, and D). This field identifies the quadrant where the well is locatedwhole townshipPublic Land Survey System (PLSS) Township number where the well is locatedhalf townshipField indicating if the Public Land Survey System (PLSS) Township number where the well is located is a half number (ex. 12.5 N)northsouthIs the well located north or south of the base linewhole rangePublic Land Survey System (PLSS) range number where the well is locatedhalf rangeField indicating if the Public Land Survey System (PLSS) Township number where the well is located is a half number (ex. 12.5 E)eastwestIs the well east or west of the Salt-Gila meridianSectionPublic Land Survey System (PLSS) Section number where the well is locatedquarter 160 acreThe quadrant of the section that the well is located inqacre160dirThe quadrant of the section that the well is located in described by directionquarter 40 acreThe quadrant of the quarter section that the well is located inq40acredirThe quadrant of the quarter section that the well is located in described by directionquarter 10 acreThe quadrant of the quarter-quarter section that the well is located inqacre10dirThe quadrant of the quarter-quarter section that the well is located in described by directionutm x metersThe x coordinate within UTM zone 12N in metersutm y metersThe y coordinate within UTM zone 12N in metersAPPLICATION_DATEThe date of the well application was receivedaddress1The address of the current well owneraddress2Additional address information of the current well owner cityThe city where the current well owner livesStateThe state where the current well owner livesZipThe zip code for the current well owner's addresszip4The additional 4 digits after the current well owner's zip codeWATER_USEAll of the water use categories assigned to the wellSITE_USEAll of the site use categories assigned to the wellSpatial reference - The spatial reference information for this GIS layer as well as the UTM X and Y fields contained in its attribute table is NAD 83 UTM ZONE 12N.

Program Background - ADWR has two key groundwater well data sets for the state of Arizona. The 'Wells 55 Registry' corresponds with this WellRegistry GIS layer and contains all wells registered in the state. The database was originally created in 1980 to store registration information submitted by well owners and drillers. It contains over 200,000 well records. A second key well data set is also maintained at ADWR. The Groundwater Well Site Inventory (GWSI), is a statewide database that contains well locations, construction, and water level measurements for wells that have actually been located and sampled in the field (originally by the USGS and since 1990 by ADWR). The GWSI database contains over 45,000 well records. Of those, approximately 24,700 have been ‘matched’ to the Wells 55 Registry and therefore have a 'Wells 55 Registry ID'.Purpose and intended use - This data is used by both internal and external customers and is most commonly used to search for registered wells within the State.Data creation methodologies, processing, and quality - The database was originally created in 1980 to store registration information submitted by well owners and drillers. New wells are added as driller logs and reports are received.Data limitations – Please refer to ADWR Data Disclaimer. This data set contains data submitted by well owners and well drillers. Data availability is therefore limited to data provided by the public. The wells mapped to the centroid of the containing Cadastral (normally Quarter-Quarter-Quarter Section). More precise user-submitted locations are not contained in this GIS layer, however they are stored internally and are available to the public upon request for approximately 20% of the wells.Currency – Updated dailyContact – Manager, Groundwater Permitting and Wells, (602)771-8527Use limitations – Please refer to ADWR Data Disclaimer.Attribute information - programADWR program codeREGISTRY_IDUnique identifier for well record in the Wells 55 Registry database.owner_nameThe registered owner of the wellrgr_pump_dataWas water removed before 2008 or was water received in the last yearwelltypeType of wellwell_type_groupWell Type groupdlic_numMost recent driller's license numberapprovedThe earliest date in which drilling was approvedinstalledThe earliest date of well constructionwell_depthThe depth of the well in feetwater_levelThe reported depth to water in feetcasing_depthThe depth of the well's casing in feetcasing_diameterThe diameter of the well's casing in inchescasing_typeThe type of casing usedpump_typeThe type of pump usedpump_powerThe method of how the pump is poweredpumprateThe rated pumping capacity in gallons per minutetestedrateThe tested pumping capacity in gallons per minutedraw_downThe amount of water that pumping has lowered the water level in feetcompletion_report_statusStatus for reporting the completion level of the well (X-Completed, I-Incomplete, A-Abandoned, N-no report required)drill_logThe driller log's received status (X-Completed, I-Incomplete, A-Abandoned, N-no report required)well_cancelledThis indicates if the well was cancelledCadastralCadastral code indicating township, range, section location information. Includes statewide quadrant (First letter - A, B, C, D), and quarter, quarter, quarter section details (Last three letters)CountyCounty in which the well is locatedWatershedWatershed in which the well is locatedbasin nameGroundwater basin in which the well is locatedsubbasin nameGroundwater subbasin in which the well is locatedAMAActive Management Area in which the well is located if applicablequad codeArizona Public Land Survey System (PLSS) is divided into 4 statewide quadrants (A, B, C, and D). This field identifies the quadrant where the well is locatedwhole townshipPublic Land Survey System (PLSS) Township number where the well is locatedhalf townshipField indicating if the Public Land Survey System (PLSS) Township number where the well is located is a half number (ex. 12.5 N)northsouthIs the well located north or south of the base linewhole rangePublic Land Survey System (PLSS) range number where the well is locatedhalf rangeField indicating if the Public Land Survey System (PLSS) Township number where the well is located is a half number (ex. 12.5 E)eastwestIs the well east or west of the Salt-Gila meridianSectionPublic Land Survey System (PLSS) Section number where the well is locatedquarter 160 acreThe quadrant of the section that the well is located inqacre160dirThe quadrant of the section that the well is located in described by directionquarter 40 acreThe quadrant of the quarter section that the well is located inq40acredirThe quadrant of the quarter section that the well is located in described by directionquarter 10 acreThe quadrant of the quarter-quarter section that the well is located inqacre10dirThe quadrant of the quarter-quarter section that the well is located in described by directionutm x metersThe x coordinate within UTM zone 12N in metersutm y metersThe y coordinate within UTM zone 12N in metersAPPLICATION_DATEThe date of the well application was receivedaddress1The address of the current well owneraddress2Additional address information of the current well ownercityThe city where the current well owner livesStateThe state where the current well owner livesZipThe zip code for the current well owner's addresszip4The additional 4 digits after the current well owner's zip codeWATER_USEAll of the water use categories assigned to the wellSITE_USEAll of the site use categories assigned to the wellSpatial reference - The spatial reference information for this GIS layer as well as the UTM X and Y fields contained in its attribute table is NAD 83 UTM ZONE 12N.