Identification_Information: Citation: Citation_Information: Originator: Price, Curtis V Publication_Date: 20050504 Title: NAWQA point ancillary data: 500-m, 1000-m radius Storage tank counts from StarView database Online_Linkage: http://water.usgs.gov/nawqa-only/gw.html Description: Abstract: This data set consists of counts of underground, leaking underground, above ground, and total storage tanks for 500-meter and 1000-meter buffers around NAWQA sampling sites. The storage tank location infomation is from the 1998 StarView database published by Vista Infomrmation Solutions, Inc. The sampling sites are from the NAWQA data warehouse, April 2005. All sampling sites are included. Purpose: This is one of the ancillary GIS data layers developed to characterize NAWQA sampling sites for national synthesis of water-quality data. Supplemental_Information: Stations in Alaska and Hawaii are included. Some sites that fall outside the US boundary (ie a few in REDN and quite a few in PUGT) will have zero counts. Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 1998 Single_Date/Time: Calendar_Date: 1998 Currentness_Reference: The data set is intended to represent conditions in the late 1990s. Status: Progress: Complete Maintenance_and_Update_Frequency: Additional NAWQA sampling sites may be added as needed. Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -125 East_Bounding_Coordinate: -66 North_Bounding_Coordinate: 50 South_Bounding_Coordinate: 24 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Ground water Theme_Keyword: Land use Theme_Keyword: Water quality Access_Constraints: The data set is for internal USGS access only. Use_Constraints: The data set is for internal USGS use only. Data_Quality_Information: Logical_Consistency_Report: none Completeness_Report: none Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Vista Information Solutions, Inc. Publication_Date: 19990101 Title: StarView database Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: none Issue_Identification: non Publication_Information: Publication_Place: unknown Publisher: Vista Information Solutions, Inc. Type_of_Source_Media: digital data Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19990101 Source_Currentness_Reference: unknown Source_Citation_Abbreviation: none Source_Contribution: digital data (storage tanks only) Source_Information: Source_Citation: Citation_Information: Originator: Price, C. Publication_Date: 20050425 Title: NAWQA sampling points (NAWQAPT) Edition: 2005.2 Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Rapid City, SD Publisher: U.S. Geological Survey Online_Linkage: http://water.usgs.gov/nawqa-only/gw.html Type_of_Source_Media: digital files Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20050425 Source_Currentness_Reference: current Source_Citation_Abbreviation: NAWQAPT Source_Contribution: The location of all of the NAWQA sampling sites in the NAWQA data warehouse as of April 2005. Process_Step: Process_Date: 20050504 Process_Description: The core processing method was to create a tabulation listing all storage tanks near each NAWQA sampling site. The ArcInfo command that does this point-to-point tabulation is POINTDISTANCE which has a limit of 130,000 points. So, the first step was to first select the 6771 NAWQA non-SW sites and do a reselect with overlap against the 1.3M tank points coverage. The resulting two coverages both had fewer than 130,000 points so the POINTDISTANCE command could be run. Each starview point has its source coded as follows: 2=underground storage tank (UST) 3=leaking underground storage tank (LUST) 17=county database LUST 21= aboveground storage tank (AST) 22=county database UST These were recoded so all would be tabulated UST, LST, or AST. The POINTDISTANCE output was then reselected for all pairs with the DISTANCE item int he table <= 500 and <= 1000 to tabulate using these two buffer distances. The FREQUENCY and GROUP2ROW commands were then used to count up the number of UST, LUST and AST records around each NAWQA sampling site. The final file structure includes STAID and counts for the two buffer distances of UST,LUST,AST and the total of all. There may be double-counts in there, as one site may be in both StarView's LUST and UST databases, for example. Spatial_Data_Organization_Information: Indirect_Spatial_Reference: The data set is referenced by STAID, the station id of the NAWQA sampling site. Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The data set is organized by STAID (station id). The fields are: >STAID USGS Station id >T5UST USTs within 500 meters of site >T5LUST LUSTs within 500 meters of site >T5AST ASTs within 500 meters of site >T5PTS all tanks within 500 meters of site >T10UST USTs within 1000 meters of site >T10LUST LUSTs within 1000 meters of site >T10AST ASTs within 1000 meters of site >T10PTS all tanks within 1000 meters of site Entity_and_Attribute_Detail_Citation: None Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Curtis Price Contact_Position: Physical Scientist (GIS specialist) Contact_Address: Address_Type: mailing and physical address Address: 1608 Mountain View Road City: Rapid City State_or_Province: SD Postal_Code: 57702 Country: USA Contact_Voice_Telephone: (605) 394-3242 Contact_Facsimile_Telephone: (605) 355-4523 Contact_Electronic_Mail_Address: cprice@usgs.gov Contact_Instructions: Contact via email Distribution_Liability: USGS assumes no liability for the use of this data set. Metadata_Reference_Information: Metadata_Date: 20050504 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Curtis Price Contact_Position: Physical Scientist (GIS specialist) Contact_Address: Address_Type: mailing and physical address Address: 1608 Mountain View Road City: Rapid City State_or_Province: SD Postal_Code: 57702 Country: USA Contact_Voice_Telephone: (605) 394-3242 Contact_Facsimile_Telephone: (605) 355-4523 Contact_Electronic_Mail_Address: cprice@usgs.gov Contact_Instructions: Contact via email Metadata_Standard_Name: Content standards for digital geospatial metadata Metadata_Standard_Version: FGDC-STD-001-1998