Hank Johnson 2011 vector digital data Reston, VA U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?naturalPhosphorusSources_MRB7 Phosphorus is a naturally occurring element found in all rocks; the amount varies by the type of rock. The amount of phosphorus in sediments is expected to be correlated with the amount of phosphorus in the parent rocks. Streambed sediment collected by the National Uranium Resource Evaluation (NURE) Program were used to estimate the variation of phosphorus across the Pacific Northwest. This file provides an estimate of the mean concentration of phosphorus in soils for each incremental catchment of the USGS Pacific Northwest SPARROW model. This data set was developed to estimate the contribution of natural geologic sources of phosphorus to the in-stream total phosphorus load for the USGS Pacific Northwest SPARROW model. Data for Canadian watersheds were estimated based on nearest geographically available data along United States border. 2002 ground condition Complete None planned -129.351779 -109.448056 55.265926 39.745375 None phosphorus Uranium Resource Evaluation Program SPARROW Model USGS inlandWaters None Washington Oregon Idaho Pacific Northwest Columbia River Basin Puget Sound None None. Hank Johnson U.S. Geological Survey Hydrologist mailing and physical address

2130 SW 5th Ave

Portland OR 97201 USA 1-503-251-3472 1-503-251-3470 hjohnson@usgs.gov http://water.usgs.gov/GIS/browse/NaturalPhosphorusSources_MRB7.gif Illustration of Natural Phosphorus Sources for the Pacific Northwest GIF The U.S. Geological Survey should be acknowledged as the data source in products derived from these data. Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.4000 Silvia Terziotti Anne B Hoos Douglas Harned Ana Maria Garcia 2010 document Scientific Investigations Map Map 3102 Reston U.S. Geological Survey http://pubs.usgs.gov/sim/3102/ Data are from national-scale inputs and should be considered no better than 1 square kilometer resolution. Data are topologically correct in ArcGIS. Data are complete. The accuracy of geographic sample locations depends on the procedures used by the original sampling program. Refer to source metadata for complete description of input data accuracy. N/A Smith, S.M. 1997 vector digital data Open File Report 97-492 Denver, CO U.S. Geological Survey http://pubs.usgs.gov/of/1997/ofr-97-0492/ online unknown publication date NGS National-scale geochemical analysis of stream sediments and soils in the US, from existing data, reanalysis of existing samples, and new sampling. Goal for sample density is one per 289 square km. Paul G. Schruben Raymond E. Arndt Walter J. Bawiec 1997 2.0 raster digital data DIGITAL DATA SERIES DDS-11 Denver U.S. Geological Survey http://pubs.usgs.gov/dds/dds11 online 1997 publication date GEO Geologic map used in data conversion and analyses. U.S. Environmental Protection Agency 2008 vector digital data http://www.epa.gov/wed/pages/ecoregions/level_iii_iv.htm online 2008 publication date ECO Western Ecology Division, U.S. Environmental Protection Agency Ecoregions U.S. Geological Survey 2000 2.0 vector digital data ERF1-2 -- Enhanced River Reach File 2.0 Reston, VA U.S. Geological Survey http://water.usgs.gov/GIS/metadata/usgswrd/XML/mrb_e2rf1.xml online 2000 publication date ERF1 U.S. Geolocial Survey MRB_E2rf1 national hydrography data set. Represents streams and watersheds across entire United States. Downloaded sediment point file data for the entire Nation from the National Geochemical Survey (NGS): http://tin.er.usgs.gov/geochem Data were downloaded as an ESRI Shapefile. Accessed September 10, 2008. 20080910 Clipped the NGS shapefile to the MRB7 watersheds model extent, converted it to a coverage, and deleted all data fields except P_ICP40, which contained the phosphorus data that were used in to extrapolate to unsampled areas. 20080912 Deleted all records that were not related to streambed sediment, such that where the records that had the field TYPEDESC equal to the value "STRM-SED" were retained. 20080912 Downloaded a National coverage of geologic units from: http://pubs.usgs.gov/dds/dds11 Accessed September 12, 2008. GEO 20080912 Clipped the USGS geologic unit coverage to the MRB7 watersheds model extent, producing a coverage name: "mrb7_geol." 20080912 Converted the clipped USGS geologic unit coverage to a raster grid with a 100 meter cell size. Grid name: geol_grd. 20080912 Added an item named "geoeco_code" to the geologic unit coverage, mrb7_geol, and to the raster grid, geol_grd. This code was necessary for post processing in AML script and represented a unique ID for the geologic units. 20080912 Downloaded the Ecoregion Level 4 coverages for the model domain from: http://www.epa.gov/wed/pages/ecoregions.htm. Accessed September 17, 2008. The following coverages were downloaded as compressed ESRI coverages (.e00 files): Idaho (id_eco); Montana (mt_eco); Nevada (nv_eco); Oregon (or_eco); Utah (ut_eco); Washington (wa_eco); and Wyoming ( wy_eco). ECO 20080917 Level 4 ecoregions were not available for California, so I downloaded the Ecoregion Level 3 coverages for the continental United States: http://www.epa.gov/wed/pages/ecoregions.htm. Accessed September 17, 2008. The following coverages were downloaded as compressed ESRI coverages (.e00 files): United States (useco_3). 20080917 Appended the 7 Level 4 ecoregion coverages together, edited out the state lines, and clipped the resulting coverage to the Pacific Northwest SPARROW model boundary. 20080917 Extracted the linework for the Klamath Mountains and Coast Range ecoregions from the U.S. Level 3 ecoregion coverage. Trimmed the linework at the Oregon border and appended it to the Level 4 coverage from step 10. Clipped the new, merged ecoregion coverage to the Pacific Northwest SPARROW model boundary. A Level 4 ecoregion was assigned to the appended California Level 3 ecoregions based on the adjacent Level 4 ecoregion in Oregon. A portion of 20 incremental catchments along the California-Oregon border contain an interpolated Level 4 ecoregion. The total area of these 20 catchments is 1,164 sq km. Less than half the total area (541 sq km) contains an interpolated Level 4 ecoregion. The following MRB-IDs were affected: 55377, 55379, 55380, 55378, 55336, 55332, 55340, 55333, 55230, 55226, 81883, 55338, 55337, 55232, 55233, 55234, 55235, 55237, 55236, 55231 20080917 Used an AML provided by Silvia Terziotti to composite the geology and ecoregion coverages into a new data set called a geo-ecoregion. The resulting output is a grid named "geo_eco_grd" and a coverage named "geo_eco". The first step in her AML was to intersect the geology and ecoregion coverage to create what she calls a geo-ecoregion. Next, the geo-ecoregions were populated with the NURE phosphorus data. If a geo-ecoregion contained more than NURE data point, the mean of the values was assigned to the geo-ecoregion. The last step of AML assigned a phosphorus value to geo-ecoregions which did not have any NURE data. The values were assigned first using a value from similar, non-contiguous geo-ecoregions. If none were identified, they were assigned using the mean value of nearby geo-ecoregions. ERF1 20080917 Used two additional AMLs provided by Silvia Terziotti to assign the National Geochemical Society streambed phosphorus sample data to each "geo_eco" unit in the MRB7 (Pacific Northwest) SPARROW model domain. Streambed samples were collected over a period of several years. The NURE data collected and downloaded is described in greater detail in the Open File Report 97-492. NGS 20080917 Used the grid function zonalstats to compute the minimum, maximum, mean, and standard deviation phosphorus value for each incremental catchment in the model domain. mrb7_phos_info = zonalstats(mrb7cat_grd, geo_eco_grd, all, data) 20080917 Exported a .csv file and joined with the shapefile of incremental catchments. 20080917 Vector NAD_1983_Albers 29.500000 45.500000 96.000000 23.000000 0.00000 0.00000 Coordinate pair 10.00000 10.00000 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 NaturalPhosphorusSources_MRB7 Floodplain boundary U.S. Geological Survey FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. MRB_ID Major River Basin stream reach ID USGS Coordinates defining the features. MIN Minimum weight fraction (percent) of phosphorus USGS 0 0.16 weight fraction 30 MAX Maximum weight fraction (percent) of phosphorus USGS 0 0.1861 weight fraction (percent = x*100) MEAN Mean weight fraction (percent) of phosphorus USGS 0 0.1793 weight fraction (percent = x*100) STD Standard Deviation weight fraction (percent) of phosphorus USGS 0 0.0688 weight fraction (percent = x*100) Values represent simple statistical breakdown of fraction (percent) weight, including maximum, minium, mean, and standard deviation. N/A U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

445 National Center

Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://water.usgs.gov/user_feedback_form.html Downloadable Data Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials. The use of firm, trade, or brand names in this report is for identification purposes only and does not constitute endorsement by the U.S. Geological Survey. The names mentioned in this document may be trademarks or registered trademarks of their respective trademark owners. shapefile PKZIP compression Winzip 1000 http://water.usgs.gov/GIS/dsdl/NaturalPhosphorusSources_MRB7.zip None. This dataset is provided by USGS as a public service. 20110404 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

445 National Center

Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+naturalPhosphorusSources_MRB7 FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998