<?xml version='1.0' encoding='UTF-8'?>
<metadata xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <idinfo>
    <citation>
      <citeinfo>
        <origin>Jason H. Chase</origin>
        <origin>Zachary J. Clifton</origin>
        <origin>Leah E. Staub</origin>
        <origin>Allen C. Gellis</origin>
        <origin>Matthew C. Gyves</origin>
        <origin>Christopher Conaway</origin>
        <pubdate>20240329</pubdate>
        <title>Geochemical sediment source and target analysis in White Clay Creek, Pennsylvania (ver. 2.0, March 2024)</title>
        <geoform>tabular digital data</geoform>
        <onlink>https://doi.org/10.5066/P9ZA2VQX</onlink>
      </citeinfo>
    </citation>
    <descript>
      <abstract>This data release includes one comma delimited table that represents a summary of source and target samples collected for White Clay Creek between 2020 and 2023, in support of sediment fingerprinting modelling. This table contains sediment sample information and results of particle size, elemental composition, and fallout radionuclide analyses. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

First posted - October 18, 2023 (available from author).
Revised - March 28, 2024 (version 2.0).
This data release has been revised to include data from samples collected in 2023 that were not published in version 1.0.</abstract>
      <purpose>The purpose of this data collection is for use in the determination of the significant sources of fine-grained sediment delivered to select points in the White Clay Creek watershed in southeastern Pennsylvania.</purpose>
    </descript>
    <timeperd>
      <timeinfo>
        <rngdates>
          <begdate>20200804</begdate>
          <enddate>20230911</enddate>
        </rngdates>
      </timeinfo>
      <current>ground condition</current>
    </timeperd>
    <status>
      <progress>Complete</progress>
      <update>As needed</update>
    </status>
    <spdom>
      <bounding>
        <westbc>-80.5200</westbc>
        <eastbc>-74.6900</eastbc>
        <northbc>42.2600</northbc>
        <southbc>39.7100</southbc>
      </bounding>
    </spdom>
    <keywords>
      <theme>
        <themekt>ISO 19115 Topic Category</themekt>
        <themekey>environment</themekey>
      </theme>
      <theme>
        <themekt>USGS Thesaurus</themekt>
        <themekey>geomorphology</themekey>
        <themekey>hydrology</themekey>
        <themekey>geochemistry</themekey>
        <themekey>water quality</themekey>
      </theme>
      <theme>
        <themekt>USGS Metadata Identifier</themekt>
        <themekey>USGS:6509cf0cd34eb6693be8f46d</themekey>
      </theme>
      <place>
        <placekt>Common geographic areas</placekt>
        <placekey>Pennsylvania</placekey>
        <placekey>United States</placekey>
        <placekey>Piedmont</placekey>
      </place>
    </keywords>
    <accconst>None.  Please see 'Distribution Info' for details.</accconst>
    <useconst>None.  Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations.</useconst>
    <ptcontac>
      <cntinfo>
        <cntperp>
          <cntper>Allen C Gellis</cntper>
          <cntorg>U.S. Geological Survey, WATER</cntorg>
        </cntperp>
        <cntpos>Hydrologist-RGEG</cntpos>
        <cntaddr>
          <addrtype>mailing address</addrtype>
          <address>Mail Stop 966, 5522 Research Park Drive</address>
          <city>Catonsville</city>
          <state>MD</state>
          <postal>21228</postal>
          <country>US</country>
        </cntaddr>
        <cntvoice>443-498-5581</cntvoice>
        <cntfax>443-498-5510</cntfax>
        <cntemail>agellis@usgs.gov</cntemail>
      </cntinfo>
    </ptcontac>
    <datacred>This study was funded by the USGS Water Resources Mission Area's Next Generation Water Observing System (NGWOS).</datacred>
  </idinfo>
  <dataqual>
    <attracc>
      <attraccr>Accuracy of all analytical measurements was conducted according to USGS Menlo Park program and USGS Denver Mineral Resources program published guidelines.

No formal attribute accuracy tests were conducted for sediment sampling.</attraccr>
    </attracc>
    <logic>All values fall within expected ranges.</logic>
    <complete>All data listed represent sediment conditions for the sampling periods documented within the White Clay Creek watershed. Data representing other time periods and/or other watersheds are not listed.</complete>
    <lineage>
      <procstep>
        <procdesc>Sediment Sampling Field Methods, by sample type:

Bank: Please refer to the journal article "Gellis, A. C., Fuller, C. C., Van Metre, P., Filstrup, C. T., Tomer, M. D., Cole, K. J., &amp; Sabitov, T. Y. (2019). Combining sediment fingerprinting with age-dating sediment using fallout radionuclides for an agricultural stream, Walnut Creek, Iowa, USA. Journal of Soils and Sediments, 19(9), 3374-3396." for details of streambank sediment sampling methods.

Cropland: Please refer to the journal article "Gellis, A. C., Fuller, C. C., Van Metre, P., Filstrup, C. T., Tomer, M. D., Cole, K. J., &amp; Sabitov, T. Y. (2019). Combining sediment fingerprinting with age-dating sediment using fallout radionuclides for an agricultural stream, Walnut Creek, Iowa, USA. Journal of Soils and Sediments, 19(9), 3374-3396." for details of cropland sediment sampling methods.

Forest: Please refer to the journal article "Gellis, A. C., Fuller, C. C., Van Metre, P., Filstrup, C. T., Tomer, M. D., Cole, K. J., &amp; Sabitov, T. Y. (2019). Combining sediment fingerprinting with age-dating sediment using fallout radionuclides for an agricultural stream, Walnut Creek, Iowa, USA. Journal of Soils and Sediments, 19(9), 3374-3396." for details of forest sediment sampling methods.

Pasture: Please refer to the journal article "Gellis, A. C., Fuller, C. C., Van Metre, P., Filstrup, C. T., Tomer, M. D., Cole, K. J., &amp; Sabitov, T. Y. (2019). Combining sediment fingerprinting with age-dating sediment using fallout radionuclides for an agricultural stream, Walnut Creek, Iowa, USA. Journal of Soils and Sediments, 19(9), 3374-3396." for details of pasture sediment sampling methods.

Bed: Bed sediments were collected from various fine-grained in-channel bed deposits along White Clay Creek using a stainless steel spatula by skimming the topmost (&lt;1cm) sediment layer, then quickly depositing the sediments into a HCl acid-washed 7.57L (2 US gallons) plastic bucket. A 2mm stainless steel screen atop the bucket was utilized to filter out larger particles as necessary.

Suspended sediment: Please refer to the journal article "Cashman, M. J., Gellis, A. C., Gorman Sanisaca, L., Noe, G. B., Cogliandro, V., &amp; Baker, A. (2018). Bank-derived material dominates fluvial sediment in a suburban Chesapeake Bay watershed. River Research Applications, 34(8), 1032-1044." for details of suspended sediment sampling methods.

Following sampling, all samples were brought back to the MD-DE-DC Water Science Center lab for preparation for further analysis as outlined in the Sediment Lab Processing step below.</procdesc>
        <procdate>20200804</procdate>
      </procstep>
      <procstep>
        <procdesc>Sediment Lab Processing:

Please refer to the journal article "Gellis, A. C., Fuller, C. C., Van Metre, P., Filstrup, C. T., Tomer, M. D., Cole, K. J., &amp; Sabitov, T. Y. (2019). Combining sediment fingerprinting with age-dating sediment using fallout radionuclides for an agricultural stream, Walnut Creek, Iowa, USA. Journal of Soils and Sediments, 19(9), 3374-3396." for details of sediment processing methods. All samples were processed as outlined by these methods. Sample processing was performed at the MD-DE-DC Water Science Center in Catonsville, MD.

Suspended sediment samples required additional pre-processing as follows:

1-L ISCO wedge bottles containing suspended sediment samples were left undisturbed for at least one week prior to wet sieving to allow fine sediment to settle. ISCO wedges were then pumped of excess water using a Geotech Geopump peristaltic sampling pump in a manner that prevented fine sediment from becoming re-suspended and removed. ISCO wedges were then rinsed of any sediment and remaining water and were wet sieved according to methods listed in the journal article: "Gellis, A. C., Fuller, C. C., Van Metre, P., Filstrup, C. T., Tomer, M. D., Cole, K. J., &amp; Sabitov, T. Y. (2019). Combining sediment fingerprinting with age-dating sediment using fallout radionuclides for an agricultural stream, Walnut Creek, Iowa, USA. Journal of Soils and Sediments, 19(9), 3374-3396."</procdesc>
        <procdate>20200804</procdate>
      </procstep>
      <procstep>
        <procdesc>Radionuclide Analysis Methods for Sediment Samples:

Please refer to the journal article "Gellis, A. C., Fuller, C. C., Van Metre, P., Filstrup, C. T., Tomer, M. D., Cole, K. J., &amp; Sabitov, T. Y. (2019). Combining sediment fingerprinting with age-dating sediment using fallout radionuclides for an agricultural stream, Walnut Creek, Iowa, USA. Journal of Soils and Sediments, 19(9), 3374-3396." for details of radionuclide analysis methods for sediment samples. All samples were analyzed for radionuclides as outlined by these methods. Radionuclide analysis of samples was performed at the USGS Sediment Radioisotope Laboratory in Menlo Park, CA.</procdesc>
        <procdate>20201014</procdate>
      </procstep>
      <procstep>
        <procdesc>Elemental Analysis Methods for Sediment Samples:

Please refer to the journal article "Gellis, A. C., Fuller, C. C., Van Metre, P., Filstrup, C. T., Tomer, M. D., Cole, K. J., &amp; Sabitov, T. Y. (2019). Combining sediment fingerprinting with age-dating sediment using fallout radionuclides for an agricultural stream, Walnut Creek, Iowa, USA. Journal of Soils and Sediments, 19(9), 3374-3396." for details of elemental analysis methods for sediment samples. All samples were analyzed for elemental concentrations as outlined by these methods. Elemental analysis of samples was performed at the USGS Analytical Chemistry Laboratory in in Denver, CO.</procdesc>
        <procdate>20210521</procdate>
      </procstep>
      <procstep>
        <procdesc>Grain Size Analysis for Sediment Samples:

Grain size analysis methods used in this study were similar to those used in the journal article "Gellis, A. C., Fuller, C. C., Van Metre, P., Filstrup, C. T., Tomer, M. D., Cole, K. J., &amp; Sabitov, T. Y. (2019). Combining sediment fingerprinting with age-dating sediment using fallout radionuclides for an agricultural stream, Walnut Creek, Iowa, USA. Journal of Soils and Sediments, 19(9), 3374-3396." Grain size methods differed from those listed in this journal article in the following two ways:

Grain size analysis of fine sediment was conducted using a HORIBA Partica LA-960V2 laser scattering particle size distribution analyzer.
An aliquot (0.0235-0.0265 g) of each sample was transferred into a 20-mL scintillation vial.

All samples were analyzed for grain size as outlined by these methods. Grain size analysis of samples was performed at the MD-DE-DC Water Science Center in Catonsville, MD.</procdesc>
        <procdate>20230426</procdate>
      </procstep>
    </lineage>
  </dataqual>
  <eainfo>
    <detailed>
      <enttyp>
        <enttypl>WCC_data_release_version_2.0.csv</enttypl>
        <enttypd>Comma Separated Value (CSV) file containing sediment source and target sample data, including sample information and results of grain size, elemental composition, and fallout radionuclide analyses.</enttypd>
        <enttypds>U.S. Geological Survey</enttypds>
      </enttyp>
      <attr>
        <attrlabl>Sample_Name</attrlabl>
        <attrdef>Sample names used in the field and in the sediment laboratory.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <udom>Unique name for each sample.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Field_No</attrlabl>
        <attrdef>Sample identification strings used in the sediment and metals laboratories.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <udom>Unique string with sample name, sample type, and date included.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Sample_Type</attrlabl>
        <attrdef>Types of sediment samples collected.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>Cropland</edomv>
            <edomvd>Cropland sediment.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Pasture</edomv>
            <edomvd>Pasture sediment.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Bed</edomv>
            <edomvd>Streambed sediment.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Bank</edomv>
            <edomvd>Streambank sediment.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Forest</edomv>
            <edomvd>Forest sediment.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Suspended Sediment</edomv>
            <edomvd>Suspended sediment collected using an ISCO sampler.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Site_Name</attrlabl>
        <attrdef>Site identification information describing locations where samples were collected.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <udom>Description of location where sample was collected.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Latitude</attrlabl>
        <attrdef>GPS latitude coordinates of sample locations.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>39.7475</rdommin>
            <rdommax>39.9026985</rdommax>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Longitude</attrlabl>
        <attrdef>GPS longitude coordinates of sample locations.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>-75.8814011</rdommin>
            <rdommax>-75.7317734</rdommax>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>USGS_STAID</attrlabl>
        <attrdef>USGS stream gaging station IDs where samples were collected.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>NA</edomv>
            <edomvd>Sediment sample was not collected at a USGS stream gaging station.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>s_01478245</edomv>
            <edomvd>Sample was collected at USGS stream gage 01478245, White Clay Creek Near Strickersville, PA.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>s_01478100</edomv>
            <edomvd>Sample was collected at USGS stream gage 01478100, East Branch White Clay Creek Trib Near London Grove, PA.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>s_01478185</edomv>
            <edomvd>Sample was collected at USGS stream gage 01478185, Middle Branch White Clay Creek Near West Grove, PA.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Date_Sampled</attrlabl>
        <attrdef>Sample collection date, MM/DD/YYYY.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>08/04/2020</rdommin>
            <rdommax>09/11/2023</rdommax>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Time_Sampled</attrlabl>
        <attrdef>Sample collection time, HH:MM (EST).</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>00:33</rdommin>
            <rdommax>23:42</rdommax>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Source_or_Fluvial</attrlabl>
        <attrdef>Identifiers representing sediment samples intended use in sediment fingerprinting modelling.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>Source</edomv>
            <edomvd>Sediment sample represents a potential sediment source in sediment fingerprinting modelling (includes cropland, pasture, forest, and bank sediment).</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Fluvial</edomv>
            <edomvd>Sediment sample represents a target sample in sediment fingerprinting modelling (including bed and suspended sediment).</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Mass_Fines</attrlabl>
        <attrdef>Masses of fine sediment smaller than 63 micrometers for each sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>NA</edomv>
            <edomvd>Mass of fine sediment could not be calculated for this sample.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <rdom>
            <rdommin>1.85</rdommin>
            <rdommax>60.21</rdommax>
            <attrunit>grams</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Mass_Sand</attrlabl>
        <attrdef>Masses of sediment larger than 63 micrometers for each sample (sand).</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>NA</edomv>
            <edomvd>Mass of sand could not be calculated for this sample.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <rdom>
            <rdommin>-0.87</rdommin>
            <rdommax>243.45</rdommax>
            <attrunit>grams</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Calc_Percent_Fines</attrlabl>
        <attrdef>Percentages of fine sediment mass out of total mass for each sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>NA</edomv>
            <edomvd>Percentage of fines sediment could not be calculated for this sample.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <rdom>
            <rdommin>1.8</rdommin>
            <rdommax>130.3</rdommax>
            <attrunit>percent</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Notes</attrlabl>
        <attrdef>Additional relevant information related to select samples.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>NA</edomv>
            <edomvd>No additional information needed for this sample.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <udom>Description of information deemed relevant during sediment sampling or processing steps.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>D50</attrlabl>
        <attrdef>Median diameter of fine sediment in sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>6.114</rdommin>
            <rdommax>32.171</rdommax>
            <attrunit>micrometers</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Organic_C</attrlabl>
        <attrdef>Organic Carbon component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.09</rdommin>
            <rdommax>22.38</rdommax>
            <attrunit>percent</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>C</attrlabl>
        <attrdef>Total Carbon component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.1</rdommin>
            <rdommax>22.4</rdommax>
            <attrunit>percent</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>CO2</attrlabl>
        <attrdef>Carbon Dioxide (CO2) component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>NA</edomv>
            <edomvd>No data, or below lab detection thresholds.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <rdom>
            <rdommin>0.01</rdommin>
            <rdommax>5.72</rdommax>
            <attrunit>percent</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>CRBNT_C</attrlabl>
        <attrdef>Carbonate component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>NA</edomv>
            <edomvd>No data, or below lab detection thresholds.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <rdom>
            <rdommin>0.01</rdommin>
            <rdommax>1.56</rdommax>
            <attrunit>percent</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Al</attrlabl>
        <attrdef>Aluminum component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>4.06</rdommin>
            <rdommax>11.8</rdommax>
            <attrunit>percent</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Ca</attrlabl>
        <attrdef>Calcium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.15</rdommin>
            <rdommax>6.37</rdommax>
            <attrunit>percent</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Fe</attrlabl>
        <attrdef>Iron component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.22</rdommin>
            <rdommax>7.28</rdommax>
            <attrunit>percent</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>K</attrlabl>
        <attrdef>Potassium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.03</rdommin>
            <rdommax>2.62</rdommax>
            <attrunit>percent</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Mg</attrlabl>
        <attrdef>Magnesium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.2</rdommin>
            <rdommax>3.02</rdommax>
            <attrunit>percent</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Na</attrlabl>
        <attrdef>Sodium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.16</rdommin>
            <rdommax>1.59</rdommax>
            <attrunit>percent</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>S</attrlabl>
        <attrdef>Sulfur component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.01</rdommin>
            <rdommax>0.43</rdommax>
            <attrunit>percent</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Ti</attrlabl>
        <attrdef>Titanium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.29</rdommin>
            <rdommax>1.01</rdommax>
            <attrunit>percent</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Ag</attrlabl>
        <attrdef>Silver component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>NA</edomv>
            <edomvd>No data, or below lab detection thresholds.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <rdom>
            <rdommin>0.03</rdommin>
            <rdommax>1.09</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>As</attrlabl>
        <attrdef>Arsenic component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>4.0</rdommin>
            <rdommax>15.8</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Ba</attrlabl>
        <attrdef>Barium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>319</rdommin>
            <rdommax>976</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Be</attrlabl>
        <attrdef>Beryllium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.22</rdommin>
            <rdommax>3.4</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Bi</attrlabl>
        <attrdef>Bismuth component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.14</rdommin>
            <rdommax>0.41</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Cd</attrlabl>
        <attrdef>Cadmium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.05</rdommin>
            <rdommax>0.88</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Ce</attrlabl>
        <attrdef>Cerium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>59</rdommin>
            <rdommax>419</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Co</attrlabl>
        <attrdef>Cobalt component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>4.6</rdommin>
            <rdommax>41.2</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Cr</attrlabl>
        <attrdef>Chromium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>47</rdommin>
            <rdommax>188</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Cs</attrlabl>
        <attrdef>Cesium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.87</rdommin>
            <rdommax>7.73</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Cu</attrlabl>
        <attrdef>Copper component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>11.2</rdommin>
            <rdommax>141</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Ga</attrlabl>
        <attrdef>Gallium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>12.5</rdommin>
            <rdommax>30.4</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Hf</attrlabl>
        <attrdef>Hafnium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.0</rdommin>
            <rdommax>5.0</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>In</attrlabl>
        <attrdef>Indium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.045</rdommin>
            <rdommax>0.117</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>La</attrlabl>
        <attrdef>Lanthanum component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>27</rdommin>
            <rdommax>196</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Li</attrlabl>
        <attrdef>Lithium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>18.8</rdommin>
            <rdommax>70.4</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Lu</attrlabl>
        <attrdef>Lutetium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.2</rdommin>
            <rdommax>1.49</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Mn</attrlabl>
        <attrdef>Manganese component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>210</rdommin>
            <rdommax>4890</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Mo</attrlabl>
        <attrdef>Molybdenum component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.87</rdommin>
            <rdommax>4.45</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Nb</attrlabl>
        <attrdef>Niobium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>10.6</rdommin>
            <rdommax>26.2</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Ni</attrlabl>
        <attrdef>Nickel component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>18.5</rdommin>
            <rdommax>91.2</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>P</attrlabl>
        <attrdef>Phosphorus component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>362</rdommin>
            <rdommax>2990</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Pb</attrlabl>
        <attrdef>Lead component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>20.4</rdommin>
            <rdommax>74.1</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Rb</attrlabl>
        <attrdef>Rubidium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>62</rdommin>
            <rdommax>173</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Sb</attrlabl>
        <attrdef>Antimony component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.32</rdommin>
            <rdommax>2.26</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Sc</attrlabl>
        <attrdef>Scandium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>7.0</rdommin>
            <rdommax>24.8</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Se</attrlabl>
        <attrdef>Selenium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>NA</edomv>
            <edomvd>No data, or below lab detection thresholds.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <rdom>
            <rdommin>0.5</rdommin>
            <rdommax>3.4</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Sn</attrlabl>
        <attrdef>Tin component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.9</rdommin>
            <rdommax>7.1</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Sr</attrlabl>
        <attrdef>Strontium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>44</rdommin>
            <rdommax>182</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Ta</attrlabl>
        <attrdef>Tantalum component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.5</rdommin>
            <rdommax>1.9</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Tb</attrlabl>
        <attrdef>Terbium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.72</rdommin>
            <rdommax>4.05</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Te</attrlabl>
        <attrdef>Tellurium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>NA</edomv>
            <edomvd>No data, or below lab detection thresholds.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <rdom>
            <rdommin>0.03</rdommin>
            <rdommax>0.1</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Th</attrlabl>
        <attrdef>Thorium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>6.9</rdommin>
            <rdommax>49.1</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Tl</attrlabl>
        <attrdef>Thallium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.43</rdommin>
            <rdommax>17.4</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>U</attrlabl>
        <attrdef>Uranium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.46</rdommin>
            <rdommax>16.6</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>V</attrlabl>
        <attrdef>Vanadium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>58</rdommin>
            <rdommax>196</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>W</attrlabl>
        <attrdef>Tungsten component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.5</rdommin>
            <rdommax>18.4</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Y</attrlabl>
        <attrdef>Yttrium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>14.9</rdommin>
            <rdommax>119</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Yb</attrlabl>
        <attrdef>Ytterbium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.4</rdommin>
            <rdommax>10.5</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Zn</attrlabl>
        <attrdef>Zinc component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>39.1</rdommin>
            <rdommax>252</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Zr</attrlabl>
        <attrdef>Zirconium component for a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>47</rdommin>
            <rdommax>239</rdommax>
            <attrunit>parts per million</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Be_7</attrlabl>
        <attrdef>Beryllium-7 reported activity in a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>NA</edomv>
            <edomvd>No data, or below lab detection thresholds.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <rdom>
            <rdommin>0.019</rdommin>
            <rdommax>0.36</rdommax>
            <attrunit>becquerels per gram</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Cs_137</attrlabl>
        <attrdef>Cesium-137 reported activity in a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>NA</edomv>
            <edomvd>No data, or below lab detection thresholds.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <rdom>
            <rdommin>0.0013</rdommin>
            <rdommax>0.037</rdommax>
            <attrunit>becquerels per gram</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>XS_Pb_210</attrlabl>
        <attrdef>Excess Lead-210 reported activity in a single sediment sample.</attrdef>
        <attrdefs>U.S. Geological Survey</attrdefs>
        <attrdomv>
          <edom>
            <edomv>NA</edomv>
            <edomvd>No data, or below lab detection thresholds.</edomvd>
            <edomvds>U.S. Geological Survey</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <rdom>
            <rdommin>0.0</rdommin>
            <rdommax>0.43</rdommax>
            <attrunit>becquerels per gram</attrunit>
          </rdom>
        </attrdomv>
      </attr>
    </detailed>
  </eainfo>
  <distinfo>
    <distrib>
      <cntinfo>
        <cntorgp>
          <cntorg>U.S. Geological Survey</cntorg>
          <cntper>GS ScienceBase</cntper>
        </cntorgp>
        <cntaddr>
          <addrtype>mailing address</addrtype>
          <address>Denver Federal Center, Building 810, Mail Stop 302</address>
          <city>Denver</city>
          <state>CO</state>
          <postal>80225</postal>
          <country>United States</country>
        </cntaddr>
        <cntvoice>1-888-275-8747</cntvoice>
        <cntemail>sciencebase@usgs.gov</cntemail>
      </cntinfo>
    </distrib>
    <distliab>Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.</distliab>
    <stdorder>
      <digform>
        <digtinfo>
          <formname>Digital Data</formname>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://doi.org/10.5066/P9ZA2VQX</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <fees>None</fees>
    </stdorder>
  </distinfo>
  <metainfo>
    <metd>20240328</metd>
    <metc>
      <cntinfo>
        <cntperp>
          <cntper>Allen C Gellis</cntper>
          <cntorg>U.S. Geological Survey, WATER</cntorg>
        </cntperp>
        <cntpos>Hydrologist-RGEG</cntpos>
        <cntaddr>
          <addrtype>mailing address</addrtype>
          <address>Mail Stop 966, 5522 Research Park Drive</address>
          <city>Catonsville</city>
          <state>MD</state>
          <postal>21228</postal>
          <country>US</country>
        </cntaddr>
        <cntvoice>443-498-5581</cntvoice>
        <cntfax>443-498-5510</cntfax>
        <cntemail>agellis@usgs.gov</cntemail>
      </cntinfo>
    </metc>
    <metstdn>FGDC Content Standard for Digital Geospatial Metadata</metstdn>
    <metstdv>FGDC-STD-001-1998</metstdv>
  </metainfo>
</metadata>
