Michael E. Wieczorek Andrew E. LaMotte 2010 tabular digital data Digital Data Series DS-491-26 Reston, Virginia U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?mrb_e2rf1_statsgo This tabular data set represents estimated soil variables compiled for every MRB_E2RF1 catchment of selected Major River Basins (MRBs, Crawford and others, 2006). The variables included are cation exchange capacity, percent calcium carbonate, slope, water-table depth, soil thickness, hydrologic soil group, soil erodibility (k-factor), permeability, average water capacity, bulk density, percent organic material, percent clay, percent sand, and percent silt. The source data set is the State Soil ( STATSGO ) Geographic Database (Wolock, 1997). The MRB_E2RF1 catchments are based on a modified version of the U.S. Environmental Protection Agency's (USEPA) ERF1_2 and include enhancements to support national and regional-scale surface-water quality modeling (Nolan and others, 2002; Brakebill and others, 2011). Data were compiled for every MRB_E2RF1 catchment for the conterminous United States covering New England and Mid-Atlantic (MRB1), South Atlantic-Gulf and Tennessee (MRB2), the Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy (MRB3), the Missouri (MRB4), the Lower Mississippi, Arkansas-White-Red, and Texas-Gulf (MRB5), the Rio Grande, Colorado, and the Great basin (MRB6), the Pacific Northwest (MRB7) river basins, and California (MRB8). This tabular data set was created and used by the U.S. Geological Survey (USGS) specifically to estimate soil variables per watershed segment in the application of the national SPAtially Referenced Regression On Watershed attributes (SPARROW) model . The SPARROW model relates in-stream water-quality measurements to spatially referenced characteristics of watersheds, including contaminant sources and factors influencing terrestrial and stream transport. The model empirically estimates the origin and fate of contaminants in streams, and quantifies uncertainties in these estimates based on model coefficient error and unexplained variability in the observed data. For more information on the USGS SPARROW model please refer to: http://water.usgs.gov/nawqa/sparrow/intro/intro.html. 2002 publication date Complete None planned -127.910792 -65.327751 51.657387 23.243486 None STATSGO Inlandwaters MRB_E2RF1 MRB_E2RF1WS Catchment NAWQA SPARROW None Conterminous United States MRB Major River Basins MRB1 NEMA New England and Mid-Atlantic MRB2 SAGT South Atlantic-Gulf and Tennessee MRB3 GLMR Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy MRB4 MORI Missouri MRB5 LMTG Lower Mississippi, Arkansas-White-Red, and Texas-Gulf MRB6 COGB Rio Grande, Colorado, and Great Basin MRB7 PANW Pacific Northwest MRB8 CALI California None None Michael E. Wieczorek U.S. Geological Survey mailing address

5522 Research Park Drive

Baltimore MD 21228 USA 443-498-5550 443-498-5510 mewieczo@usgs.gov http://water.usgs.gov/GIS/browse/mrb_e2rf1_statsgo.jpg Illlustration of data set JPG Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000 Charles G. Crawford Pixie A. Hamilton Anne B. Hoos October 5, 2006 Reston, Virginia U.S. Geological Survey Prepared by Charlie Crawford, Pixie Hamilton, and Anne Hoos for a NAWQA National Liaison Meeting, Washington D.C., October 5, 2006. http://water.usgs.gov/nawqa/studies/mrb/mrb_factsheet.pdf None None Jacqueline V. Nolan John W. Brakebill Richard B. Alexander Gregory E. Schwarz Febuary 22, 2002 vector digital data USGS Open-File Report USGS Open-File Report 02-40 Reston, Virginia U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?erf1_2 online 2002 publication date ERF1_2 The modified version of the source data provided a reach network to construct reach catchments for MRBs and subsequent processing (J.W. Brakebill, U.S. Geological Survey, written commun., 2008). John W. Brakebill Silvia E. Terziotti 20110222 vector digital data General Information Web Only Baltimore, MD U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?mrb_e2rf1 online 2011 publication date MRB_E2RF1 The source data provided a reach network to construct reach catchments for MRBs and subsequent processing. John W. Brakebill Silvia E. Terziotti 20110222 raster digital data General Information Web Only Baltimore, MD U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?mrb_e2rf1ws online 2011 publication date MRB_E2RF1WS The source data provided reach catchments for MRBs and subsequent processing. Wolock, D. M. 1997 tabular and raster data Open-File Report 656 Lawrence, KS U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?muid online 1997 publication date statsgo The source data provided soils information. 1) Downloaded the 100-meter STATSGO GRID of MUID's and accompanying INFO files containing soil attributes: MUID100.CACO3, MUID100.CEC, MUID100.COMP, MUID100.HYDGRP, MUID100.KFACT, MUID100.KFACTUP, MUID100.LAYER, and MUID100.TEXT from: http://water.usgs.gov/GIS/metadata/usgswrd/XML/muid.xml 2) Created a 100-meter GRID for every variable in every INFO file downloaded to match the resolution of the MRB_E2RF1WS catchment GRIDs received from USGS (John Brakebill, U.S. Geological Survey, written commun., 2008). 3) Summarized each soil variable to derive an average by catchment using the ZONALMEAN command in GRID. 4) Exported results into a dbf file format 2008 statsgo_rf1 dbf tabular data ESRI OID Internal feature number ESRI Sequential unique whole numbers that are automatically generated RF1ID Unique ID to relate to the item MRB_ID in the MRB_E2RF1WS catchment and MRB_E2RF1 reach coverages. U.S. Geological Survey Sequential unique whole numbers that are automatically generated CACO3L Low value of calcium carbonate equivalent (percentage). U.S. Geological Survey 0 60 CACO3H High value of calcium carbonate equivalent (percentage). U.S. Geological Survey 0 80 CACO3_PERC Percentage of catchment that STATSGO coverage has data for variables CACO3L, CACO3H. U.S. Geological Survey 1 100 CECL Low value of cation exchange capacity. U.S. Geological Survey 0 114 CECH High value of cation exchange capacity. U.S. Geological Survey 0 184 CEC_PERC Percentage of catchment that STATSGO coverage has data for variables CECL, CECH. U.S. Geological Survey 6 100 percent SLOPEL Low value for the range in land-surface slope (percent). U.S. Geological Survey 0 64.8 percent SLOPEH High value for the range in land-surface slope (percent). U.S. Geological Survey 1 99 percent SLOPEAVE Average value for the range in land-surface slope (percent). U.S. Geological Survey .5 75.6 percent WTDEPL Low value for the range in depth to the seasonally high water table (feet). U.S. Geological Survey 0 6 percent WTDEPH High value for the range in depth to the seasonally high water table (feet). U.S. Geological Survey 0 7.06 percent WTDEPAVE Average value for the range in depth to the seasonally high water table (feet). U.S. Geological Survey 0 6..26 percent ROCKDEPL Low value for the range in the total soil thickness examined (inches). U.S. Geological Survey 1.06 61.4 percent ROCKDEPH High value for the range in the total soil thickness examined (inches). U.S. Geological Survey 5.85 90.8 percent COMP_PERC Percentage of catchment that STATSGO coverage has data for variables SLOPEL, SLOPEH, SLOPEAVE, WTDEPL, WTDEPH, WTDEPAVE, ROCKDEPL, ROCKDEPH. U.S. Geological Survey 6 100 percent HGA Hydrologic soil group A (mean percent of catchment). U.S. Geological Survey 0 100 percent HGB Hydrologic soil group B (mean percent of catchment). U.S. Geological Survey 0 100 percent HGC Hydrologic soil group C (mean percent of catchment). U.S. Geological Survey 0 100 percent HGD Hydrologic soil group D (mean percent of catchment). U.S. Geological Survey 0 100 percent HGAD Hydrologic soil group AD (mean percent of catchment). U.S. Geological Survey 0 91 percent HGBD Hydrologic soil group BD (mean percent of catchment). U.S. Geological Survey 0 100 percent HGCD Hydrologic soil group CD (mean percent of catchment). U.S. Geological Survey 0 90 percent HGAC Hydrologic soil group AC (mean percent of catchment). U.S. Geological Survey 0 48 percent HGBC Hydrologic soil group BC (mean percent of catchment). U.S. Geological Survey 0 35.2 percent HGVAR Soil hydrologic group VAR (mean percent of catchment). U.S. Geological Survey 0 50 percent HYDGRP_PER Percentage of catchment that STATSGO coverage has data for variables HGA, HGB, HGC, HGD, HGAD, HGBD, HGCD, HGAC, HGBC, and HGVAR. U.S. Geological Survey 6 100 percent KFACT Soil erodibility factor ("K factor" of Universal Soil Loss Equation, dimensionless). U.S. Geological Survey .039 .64 percent KFACT_PERC Percentage of catchment that STATSGO coverage has data for KFACT. U.S. Geological Survey 1 100 percent KFACTUP Soil erodibility factor ("K factor" of Universal Soil Loss Equation) of uppermost soil horizon (includes rock fragments, dimensionless). U.S. Geological Survey .027 .64 percent KFACTUP_PE Percentage of catchment that STATSGO coverage has data for variable KFACTUP. U.S. Geological Survey 1 100 percent PERML Low value for the range in permeability (inches per hour). U.S. Geological Survey .013 18.83 percent PERMH High value for the range in permeability (inches per hour). U.S. Geological Survey .068 20 percent PERMAVE Average value for the range in permeability (inches per hour). U.S. Geological Survey .04 19 percent AWCL Low value for the range in available water capacity (fraction). U.S. Geological Survey .012 .489 percent AWCH High value for the range in available water capacity (fraction). U.S. Geological Survey .041 .589 percent AWCAVE Average value for the range in available water capacity (fraction). U.S. Geological Survey .0325 .539 percent BDL Low value for the range in bulk density (grams per cubic centimeter). U.S. Geological Survey .052 1.682 percent BDH High value for the range in bulk density (grams per cubic centimeter). U.S. Geological Survey .201 2.395 percent BDAVE Average value for the range in bulk density (grams per cubic centimeter). U.S. Geological Survey .14 1.98 percent OML Low value for the range in organic matter content (percent by weight). U.S. Geological Survey 0 70.48 percent OMH High value for the range in organic matter content (percent by weight). U.S. Geological Survey 0 87.51 percent OMAVE Average value for the range in organic matter content (percent by weight). U.S. Geological Survey 0 78.54 percent LAYER_PERC Percentage of catchment that STATSGO coverage has data for variables PERML, PERMH, PERMAVE, AWCL, AWCH, AWCAVE, BDL, BDH, BDAVE, OML, OMH, and OMAVE. U.S. Geological Survey 1 100 percent CLAYL Low value of clay content (mean percent of catchment). U.S. Geological Survey 0 58.25 percent CLAYH High value of clay content (mean percent of catchment). U.S. Geological Survey 0 94 percent CLAYAVE Average value of clay content (mean percent of catchment). U.S. Geological Survey 0 73.66 percent SILTAVE Average value of silt (mean percent of catchment). U.S. Geological Survey 0 88.75 percent SANDAVE Average value of sand (mean percent of catchment). U.S. Geological Survey 1.45 100 percent NO4L Low value of percent by weight of soil material less than 3 inches in size that passes through a No. 4 sieve (5 millimeters). U.S. Geological Survey 0 100 percent NO4H High value of percent by weight of soil material less than 3 inches in size that passes through a No. 4 sieve (5 millimeters). U.S. Geological Survey 10 100 percent NO4AVE Average percent by weight of soil material less than 3 inches in size that passes through a No. 4 sieve (5 millimeters). U.S. Geological Survey 5 100 percent NO200L Low value of percent by weight of soil material less than 3 inches in size that passes through a No. 200 sieve (.074 millimeters). U.S. Geological Survey 0 95 percent NO200H High value of percent by weight of soil material less than 3 inches in size that passes through a No. 200 sieve (.074 millimeters). U.S. Geological Survey 0 100 percent NO200AVE Average percent by weight of soil material less than 3 inches in size that passes through a No. 200 sieve (.074 millimeters). U.S. Geological Survey 0 97.5 percent NO10L Low value of percent by weight of soil material less than 3 inches in size that passes through a No. 10 sieve (2 millimeters). U.S. Geological Survey 0 100 percent NO10H High value of percent by weight of soil material less than 3 inches in size that passes through a No. 10 sieve (2 millimeters). U.S. Geological Survey 5 100 percent NO10AVE Average percent by weight of soil material less than 3 inches in size that passes through a No. 10 sieve (2 millimeters). U.S. Geological Survey 2.5 100 percent TEXT_PERC Percentage of catchment that STATSGO coverage has data for variables CLAYL, CLAYH, CLAYAVE, SILTAVE, SANDAVE, NO4L, NO4H, NO4AVE, NO200L, NO200H, NO200AVE, NO10L, NO10H, and NO10AVE. U.S. Geological Survey 2 100 percent U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

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Reston Virginia 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://water.usgs.gov/user_feedback_form.html Downloadable Data Although this dataset has 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 and related materials. 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. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. dbf Full coverage zipped 548 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_statsgo_mrb1.zip dbf Full coverage zipped 1103 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_statsgo_mrb2.zip dbf Full coverage zipped 1630 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_statsgo_mrb3.zip dbf Full coverage zipped 1309 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_statsgo_mrb4.zip dbf Full coverage zipped 1127 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_statsgo_mrb5.zip dbf Full coverage zipped 567 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_statsgo_mrb6.zip dbf Full coverage zipped 1608 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_statsgo_mrb7.zip dbf Full coverage zipped 265 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_statsgo_mrb8.zip None. This dataset is provided by the USGS as a public service. 20100817 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

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Reston Virginia 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+mrb_e2rf1_sgeol FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998