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On November 6, 2023 at 11:06:21 PM UTC, Gravatar default:
  • Added the following fields to U.S. Geological Survey National Produced Waters Geochemical Database v2.3

    • geographic_location with value Bounding coordinates: West Bounding Coordinate: -162.77332 East Bounding Coordinate: -75.61 North Bounding Coordinate: 71.26424 South Bounding Coordinate: 25.2819
    • data_source
    • publication_date with value 2019-05-22
    • data_publishing_method with value ArcGIS REST Map Service, Map Service
    • end_date with value 2014-03-28
    • subdvision with value Energy Resources Program
    • contact_phone with value (703) 648-6509
    • data_publishing_frequency with value one-time
    • known_uses_of_data with value The purpose of the U.S. Geological Survey National Produced Waters Geochemical Database v2.3 is to provide all background information on the compositions of waters produced along with oil and gas to all relevant stakeholders, including industry, the government, environmental groups, and the public.
    • data_collection_frequency with value one-time
    • source_url
    • data_collection_procedures
    • preparation_method
    • contact_email with value [email protected]
    • contact_name with value Madalyn S Blondes
    • coordinate_reference_system
    • data_quality_procedures with value Attribute Accuracy Report: Quality control of the dataset can be performed by culling based on geochemical criteria. In this version 2.3 of the provisional database, the data that fall outside of the bounds of the following criteria are flagged, rather than culled. There are six temporary columns in the database that indicate the failure to meet specific culling criteria, based on those published in Hitchon and Brulotte (1994). An “X” is placed in the columns shown in the "USGSPWDBv2.3 Data Dictionary.csv" file where the sample falls outside of the pH range of 4.5 – 10.5; where Mg > Ca, K > Cl, or K > 5 x Na; and where the charge balance error is greater than 15%. The data were kept to allow the user to make judgment calls on their quality. Logical Consistency Report: Samples with duplicate American Petroleum Institute well identification (API) codes and chemical concentrations with large numbers of significant figures in common, were culled. It is unlikely that two samples, even from the same well, will have the exact same concentrations for three or more analytes, and therefore such similarities represent true duplicates. API code, calcium (Ca), chloride (Cl), and bicarbonate (HCO3) concentrations are used for a starting duplicate search. If these analytes were detected in samples that did not appear to be true duplicates, other analytes like Na and Mg were added to the search. Care was taken to avoid false duplicates (e.g. where all three of the initial ions had null data). Completeness Report: Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
    • division with value Energy and Minerals
    • start_date with value 1905-01-01


  • Added the following fields to resource USGSPWDB v2.3 Data Dictionary in U.S. Geological Survey National Produced Waters Geochemical Database v2.3

      ignore_hash with value ckan_url with value resource_id with value set_url_type with value original_url with value task_created with value


  • Changed value of field datastore_active to True in resource USGSPWDB v2.3 Data Dictionary in U.S. Geological Survey National Produced Waters Geochemical Database v2.3


  • Changed value of field datastore_contains_all_records_of_source_file to True in resource USGSPWDB v2.3 Data Dictionary in U.S. Geological Survey National Produced Waters Geochemical Database v2.3