Melissa M. Foley Jeffrey J. Duda Matthew M. Beirne Rebecca Paradis 2017 comma-delimited text data release DOI:10.5066/F75B00N4 Pacific Coastal and Marine Science Center, Santa Cruz, California U.S. Geological Survey https://doi.org/10.5066/F75B00N4 https://www.sciencebase.gov/catalog/file/get/58f626f8e4b0f2e20545e5ad Melissa M. Foley Patrick B. Shafroth Matthew M. Beirne Rebecca Paradis Andrew C. Ritchie 2017 data release DOI:10.5066/F75B00N4 Pacific Coastal and Marine Science Center, Santa Cruz, CA U.S. Geological Survey https://doi.org/10.5066/F75B00N4 This portion of the data release presents water column dissolved nutrient concentration data and water quality parameters from samples collected in the Elwha River estuary, Washington, in 2006, 2007, 2013, and 2014 (USGS Field Activities L-15-13-PS, L-24-13-PS, T-R5-13-PS, T-R6-13-PS, T-RA-14-PS, 2014-614-FA, 2014-628-FA, 2014-633-FA, 2014-666-FA). Water column samples were collected by hand in acid-washed opaque bottles from multiple locations. Water quality was measured using a handheld Hydolab Data Sonde 4a. The locations of water sample collections were determined with a hand-held global positioning system (GPS). The water samples were filtered through GF/F filters immediately after collection. The filtrate was collected in scintillation vials and frozen until analysis at either the University of Washington marine chemistry lab (2006 and 2007 samples) or the University of California Santa Barbara Marine Science Institute analytical lab (2013 and 2014 samples). Nutrient concentration and water quality data are provided in a comma-delimited spreadsheet (.csv). Data were obtained to assess the change in water quality in the Elwha estuary following the removal of two dams on the Elwha River between 2011 and 2014. Additional information about the field activities from which these data were derived are available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=L1513PS https://cmgds.marine.usgs.gov/fan_info.php?fan=L2413PS https://cmgds.marine.usgs.gov/fan_info.php?fan=TR513PS https://cmgds.marine.usgs.gov/fan_info.php?fan=TR613PS https://cmgds.marine.usgs.gov/fan_info.php?fan=TRA14PS https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-614-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-628-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-633-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-666-FA Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 20060622 20141012 ground condition at time data were collected Complete None planned -123.56768 -123.56162 48.14827 48.14510 USGS Metadata Identifier USGS:58f626f8e4b0f2e20545e5ad ISO 19115 Topic Category oceans Data Categories for Marine Planning water-quality parameters USGS Thesaurus marine chemistry water quality Global Change Master Directory (GCMD) nutrients Marine Realms Information Bank (MRIB) keywords water quality Geographic Names Information System (GNIS) Elwha River Strait of Juan de Fuca Olympic Peninsula Clallam County None USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey and the Lower Elwha Klallam Tribe as the originators of the dataset and in products derived from these data. Jeffrey Duda U.S. Geological Survey, Western Fisheries Science Center Research Geologist mailing and physical

6505 NE 65th Street

Seattle WA 98115 206-526-2532 jduda@usgs.gov Jeffrey Duda Microsoft Excel for Mac 2011, Mac OS X Yosemite, version 10.10.5. Melissa M. Foley Jonathan A. Warrick Andrew C. Ritchie Andrew W. Stevens Patrick B. Shafroth Jeffrey J. Duda Matthew M. Beirne Rebecca Paradis Guy R. Gelfenbaum Randall McCoy Erin S. Cubley 2017 Ecological Society of America, Washington DC Ecological Monographs http://doi.org/10.1002/ecm.1268 Detection limits for dissolved nutrients samples were determined independently by the University of Washington Marine Chemistry Lab and the University of California Santa Barbara Marine Science Institute analytical lab (UW/UCSB detection limits: PO4 = 0.03/0.1 mm; NO3 = 0.15/0.2 mm; NH4 = 0.12/0.1 mm). No formal logical accuracy tests were conducted. Dataset 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. A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. Water samples were collected at two locations in June 2006. A hand-held global positioning system was used to determine the location of the sampling location. 20060622 Water samples were collected at two locations in July 2006. A hand-held global positioning system was used to determine the location of the sampling location. 20060720 Water samples were collected at two locations in August 2006. A hand-held global positioning system was used to determine the location of the sampling location. 20060831 Water samples were collected at two locations in September 2006. A hand-held global positioning system was used to determine the location of the sampling location. 20060929 Water samples were collected at two locations in October 2006. A hand-held global positioning system was used to determine the location of the sampling location. 20061024 Analysis of nutrient samples and calibration of the continuous flow instrument follow the protocols of the WOCE Hydrographic Program. Samples were analyzed using a Seal Analytical AA3 at the University of Washington marine chemistry lab. 20070529 Water samples were collected at one location in March 2007. A hand-held global positioning system was used to determine the location of the sampling location. 20070323 Water samples were collected at two locations in April 2007. A hand-held global positioning system was used to determine the location of the sampling location. 20070418 Water samples were collected at two locations in May 2007. A hand-held global positioning system was used to determine the location of the sampling location. 20070531 Water samples were collected at two locations in June 2007. A hand-held global positioning system was used to determine the location of the sampling location. 20070628 Water samples were collected at two locations in August 2007. A hand-held global positioning system was used to determine the location of the sampling location. 20070808 Water samples were collected at two locations in August 2007. A hand-held global positioning system was used to determine the location of the sampling location. 20070830 Analysis of nutrient samples and calibration of the continuous flow instrument follow the protocols of the WOCE Hydrographic Program. Samples were analyzed using a Seal Analytical AA3 at the University of Washington marine chemistry lab. 20080127 Water samples were collected at five locations in June 2013. A hand-held global positioning system was used to determine the location of the sampling location. 20130628 Water samples were collected at five locations in July 2013. A hand-held global positioning system was used to determine the location of the sampling location. 20130723 Water samples were collected at five locations in August 2013. A hand-held global positioning system was used to determine the location of the sampling location. 20130822 Water samples were collected at three locations in October 2013. A hand-held global positioning system was used to determine the location of the sampling location. 20131024 Analysis of nutrient samples was done at the University of California Santa Barbara Marine Science Institute analytical lab using flow injection analysis on a QuickChem 8000. 20140203 Water samples were collected at four locations in March 2014. A hand-held global positioning system was used to determine the location of the sampling location. 20140309 Water samples were collected at four locations in April 2014. A hand-held global positioning system was used to determine the location of the sampling location. 20140426 Water samples were collected at five locations in June 2014. A hand-held global positioning system was used to determine the location of the sampling location. 20140613 Water samples were collected at five locations in July 2014. A hand-held global positioning system was used to determine the location of the sampling location. 20140725 Water samples were collected at five locations in October 2014. A hand-held global positioning system was used to determine the location of the sampling location. 20141012 Analysis of nutrient samples was done at the University of California Santa Barbara Marine Science Institute analytical lab using flow injection analysis on a QuickChem 8000. 20141217 Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. 20201019 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Performed minor edits to the metadata to correct typos. No data were changed 20211013 U.S. Geological Survey Susan A. Cochran Geologist Mailing and Physical

2885 Mission Street

Santa Cruz CA 95060 831-460-7545 scochran@usgs.gov Point Point 147 0.00001 0.00001 Decimal degrees WGS_1984 WGS_1984 6378137.0 298.257223563 Water quality Tabular data Producer defined Field Activity Number Unique U.S. Geological Survey field activity identifier producer defined Unique identifier for the U.S. Geological Survey field activity. NA indicates no Field Activity Number was generated for that sampling event. Dam Condition Dam status at the time of sample collection producer defined Before removal samples collected before dam removal began producer defined During removal samples collected during dam removal (2011-2014) producer defined Date Collected Date of sample collection in mm/dd/yyyy format producer defined 06/22/2006 10/12/2014 Dates in mm/dd/yyyy format Site Name Name of sample collection site producer defined Site name for the sample given when collected in the field Latitude (deg. N) Latitude of sample in decimal degrees, north producer defined 48.1451 48.14827 decimal degrees Longitude (deg. E) Longitude of sample in decimal degrees, east producer defined -123.5677 -123.5616 decimal degrees Replicate Number of replicate collected at a single site. Replicate number for the sample given when collected in the field producer defined 1 6 Integers Phosphate concentration Concentration of ortho-phosphate in the sample. NS indicates that no sample was collected. producer defined. 0.03 0.55 micromolar Nitrate + Nitrite concentration Concentration of nitrate and nitrite in the sample. NS indicates that no sample was collected. producer defined 0.04 17.49 micromolar Ammonium concentration Concentration of ammonium in the sample. NS indicates that no sample was collected. producer defined 0.03 52.8 micromolar Salinity Concentration of salt in the sample. NS indicates that no sample was collected. producer defined 0.02 4.55 PSU (practical salinity units) Temperature Water temperature. NS indicates that no sample was collected. producer defined 5.79 20.98 degrees Celcius Turbidity Concentration of suspended solids in the sample. NS indicates that no sample was collected. producer defined 0.30 305.60 NTU (Nephelometric Turbidity Unit) Dissolved oxygen Concentration of dissolved oxygen in the sample. NS indicates that no sample was collected. producer defined 6.57 13.80 mg/L % Dissolved oxygen Percent dissolved oxygen in the sample. NS indicates that no sample was collected. producer defined 62.90 149.20 percent pH Concentration of hydrogen ions in the sample. NS indicates that no sample was collected. producer defined 6.30 8.05 no units The first line of the csv file is a header line. U.S. Geological Survey U.S. Geological Survey - ScienceBase mailing and physical

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 1-888-275-8747 sciencebase@usgs.gov Water quality data are presented as a comma-delimited file (.csv) with associated FGDC-compliant metadata. 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 on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. comma-delimited text Microsoft Excel for Mac 2011 14.7.1 comma-delimited text file No compression applied. 0.04 https://www.sciencebase.gov/catalog/file/get/58f626f8e4b0f2e20545e5ad https://doi.org/10.5066/F75B00N4 Data can be downloaded via the Internet None. 20211013 Jeffrey Duda U.S. Geological Survey, Western Fisheries Research Center Research Ecologist mailing and physical

6505 NE 65th Street

Seattle WA 98115 United States of America 206-526-2532 jduda@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998