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  <dcat:Dataset rdf:about="http://catalog.data.gov/dataset/national-water-quality-assessment-nawqa-study-unit-investigations-in-the-conterminous-1991-2001">
    <owl:sameAs rdf:resource="urn:uuid:d41faf99-48a0-43b2-91ef-14789f4f65a6"></owl:sameAs>
    <dct:description>This is a coverage of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in the conterminous United States, excluding the High Plains Regional Ground-Water Study. The data set represents the areas studied during the first decade of the NAWQA Program, from 1991-2001 ("cycle 1").</dct:description>
        <dcat:keyword>inlandwaters</dcat:keyword>
        <dcat:keyword>conterminous united states</dcat:keyword>
        <dcat:keyword>ground water</dcat:keyword>
        <dcat:keyword>none</dcat:keyword>
        <dcat:keyword>national water-quality assessment program</dcat:keyword>
        <dcat:keyword>river basin</dcat:keyword>
        <dcat:keyword>1991-2001</dcat:keyword>
        <dcat:keyword>aquifer system</dcat:keyword>
        <dcat:keyword>water quality</dcat:keyword>
        <dcat:keyword>surface water</dcat:keyword>
        <dcat:keyword>nawqa</dcat:keyword>
    <foaf:homepage rdf:resource="http://catalog.data.gov/dataset/national-water-quality-assessment-nawqa-study-unit-investigations-in-the-conterminous-1991-2001"></foaf:homepage>
    <rdfs:label>national-water-quality-assessment-nawqa-study-unit-investigations-in-the-conterminous-1991-2001</rdfs:label>
    <dct:identifier>national-water-quality-assessment-nawqa-study-unit-investigations-in-the-conterminous-1991-2001</dct:identifier>
    <dct:title>National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 1991-2001</dct:title>
        <dcat:distribution>
            <dcat:Distribution>
                <dcat:accessURL rdf:resource="http://water.usgs.gov/GIS/dsdl/nawqacyc1.e00.gz"></dcat:accessURL>
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                            <rdf:value>export</rdf:value>
                            <rdfs:label>export</rdfs:label>
                        </dct:IMT>
                    </dct:format>
               <dct:title>Export</dct:title>
            </dcat:Distribution>
        </dcat:distribution>
        <dcat:distribution>
            <dcat:Distribution>
                <dcat:accessURL rdf:resource="http://water.usgs.gov/GIS/dsdl/nawqacyc1.tar.gz"></dcat:accessURL>
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                        <dct:IMT>
                            <rdf:value>TAR</rdf:value>
                            <rdfs:label>TAR</rdfs:label>
                        </dct:IMT>
                    </dct:format>
               <dct:title>Shape</dct:title>
            </dcat:Distribution>
        </dcat:distribution>
        <dcat:distribution>
            <dcat:Distribution>
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                            <rdf:value>export</rdf:value>
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               <dct:title>Web Page</dct:title>
            </dcat:Distribution>
        </dcat:distribution>
        <dcat:distribution>
            <dcat:Distribution>
                <dcat:accessURL rdf:resource="http://water.usgs.gov/lookup/getspatial?nawqacyc2"></dcat:accessURL>
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                            <rdf:value>export</rdf:value>
                            <rdfs:label>export</rdfs:label>
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               <dct:title>Web Page</dct:title>
            </dcat:Distribution>
        </dcat:distribution>
        <dcat:distribution>
            <dcat:Distribution>
                <dcat:accessURL rdf:resource="http://water.usgs.gov/lookup/getspatial?nawqagencyc1"></dcat:accessURL>
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                        <dct:IMT>
                            <rdf:value>export</rdf:value>
                            <rdfs:label>export</rdfs:label>
                        </dct:IMT>
                    </dct:format>
               <dct:title>Web Page</dct:title>
            </dcat:Distribution>
        </dcat:distribution>
        <dcat:distribution>
            <dcat:Distribution>
                <dcat:accessURL rdf:resource="http://water.usgs.gov/lookup/getspatial?nawqagencyc2"></dcat:accessURL>
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                        <dct:IMT>
                            <rdf:value>export</rdf:value>
                            <rdfs:label>export</rdfs:label>
                        </dct:IMT>
                    </dct:format>
               <dct:title>Web Page</dct:title>
            </dcat:Distribution>
        </dcat:distribution>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>bbox-east-long</rdfs:label>
            <rdf:value>-65.356310</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>resource-type</rdfs:label>
            <rdf:value>dataset</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>bbox-north-lat</rdfs:label>
            <rdf:value>51.601234</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>coupled-resource</rdfs:label>
            <rdf:value>[]</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>graphic-preview-type</rdfs:label>
            <rdf:value>GIF</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>guid</rdfs:label>
            <rdf:value></rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>graphic-preview-file</rdfs:label>
            <rdf:value>http://water.usgs.gov/nawqa/map/cyc1_browse.gif</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>bbox-south-lat</rdfs:label>
            <rdf:value>22.877918</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>spatial-reference-system</rdfs:label>
            <rdf:value></rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>spatial_harvester</rdfs:label>
            <rdf:value>True</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>spatial</rdfs:label>
            <rdf:value>{"type": "Polygon", "coordinates": [[[-127.872474, 22.877918], [-65.35631, 22.877918], [-65.35631, 51.601234], [-127.872474, 51.601234], [-127.872474, 22.877918]]]}</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>progress</rdfs:label>
            <rdf:value>completed</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>access_constraints</rdfs:label>
            <rdf:value>["Use Constraints: Accuracy is good at 1:2,000,000 or smaller in most cases. The Study-Unit source maps come from various sources and scales.", "Access Constraints: None."]</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>contact-email</rdfs:label>
            <rdf:value>kjhitt@usgs.gov</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>bbox-west-long</rdfs:label>
            <rdf:value>-127.872474</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>metadata-date</rdfs:label>
            <rdf:value>2006-01-30</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>dataset-reference-date</rdfs:label>
            <rdf:value>[{"type": "publication", "value": "2006-01-31"}]</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>graphic-preview-description</rdfs:label>
            <rdf:value>This is an image of a national map showing the cycle 1 NAWQA Study Unit boundaries.</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>frequency-of-update</rdfs:label>
            <rdf:value>THIS DATA SET REPRESENTS THE FINAL VERSION OF CYCLE 1 STUDY UNIT BOUNDARIES THAT EXISTED AT THE END OF THE FIRST DECADE OF STUDY. THE COVERAGE UNDERWENT MANY CHANGES OVER THE YEARS AND WAS UPDATED WHENEVER THE STUDY-UNIT BOUNDARIES CHANGED OR WERE REFINED. THE CHANGES FELL INTO THESE BROAD CATEGORIES: 1) THE STUDY-UNIT BOUNDARIES CHANGED AS THE GEOGRAPHIC DEFINITION OF THE BOUNDARY CHANGED (FEATURES WERE ADDED OR DELETED); 2) THE DIGITAL BOUNDARIES WERE REFINED BY ACQUIRING MORE DETAILED SOURCE MATERIALS; AND 3) CHANGES IN THE NAWQA PROGRAM NECESSITATED REVAMPING OF THE STUDY-UNIT DEFINITIONS. WHERE A REVISED STUDY-UNIT BOUNDARY WAS SHARED WITH ANOTHER STUDY UNIT, IN GENERAL, A HIGHER RESOLUTION BOUNDARY TOOK PRECEDENCE OVER A LOWER RESOLUTION BOUNDARY AND THE MORE RECENT VERSION OF A BOUNDARY TOOK PRECEDENCE OVER THE OLDER VERSION OF THAT BOUNDARY.</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>licence</rdfs:label>
            <rdf:value>["Although this data set has been used by the U.S. Geological\nSurvey, U.S. Department of the Interior, no warranty expressed or\nimplied is made by the U.S. Geological Survey as to the accuracy\nof the data and related materials. The act of distribution shall not \nconstitute any such warranty, and no responsibility is assumed by \nthe U.S. Geological Survey in the use of this data, software, or \nrelated materials.\n\nAny use of trade, product, or firm names is for descriptive\npurposes only and does not imply endorsement by the U.S.\nGovernment."]</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>metadata_type</rdfs:label>
            <rdf:value>geospatial</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>responsible-party</rdfs:label>
            <rdf:value>[{"name": "U.S. Geological Survey", "roles": ["pointOfContact"]}]</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>spatial-data-service-type</rdfs:label>
            <rdf:value></rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>metadata-language</rdfs:label>
            <rdf:value></rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>harvest_object_id</rdfs:label>
            <rdf:value>638f6069-3c26-487d-8a77-621845232ceb</rdf:value>
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        <dct:relation>
          <rdf:Description>
            <rdfs:label>harvest_source_id</rdfs:label>
            <rdf:value>e11eb0c1-b794-4812-9369-1bd7306336cd</rdf:value>
          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>harvest_source_title</rdfs:label>
            <rdf:value>Water NSDI Node Spatial Datasets</rdf:value>
          </rdf:Description>
        </dct:relation>
  </dcat:Dataset>
</rdf:RDF>