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National Aquatic Resource Surveys

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Data from the National Aquatic Resource Surveys

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To download the data: The following data are available for download as comma separated values (.csv) files. Sort the table below using the pull down menus or headers to more easily locate the data for a specific survey or indicator type. Right click on the file name and select Save Link As to save the file to your computer. Make sure to also download the companion metadata file (.txt) for the list of field labels. Users of the data are encouraged to review the Technical Reports, Field and Laboratory Manuals, and metadata files to understand the types of data available and how they were collected or measured. Users are also encouraged to read and leverage the EPA survey reports developed from these data that highlight national and regional assessments. Click here to view a summary of the available data for each of the surveys.

Recently added: Rivers and Streams 2013-2014 Data



 

National Aquatic Resource Surveys Data
Survey Indicator Data Metadata
Lakes 2007 All NLA 2007 All Data (ZIP)(1 pg, 5 MB)  
Lakes 2007 Landscape Data NLA 2007 Basin Landuse Metrics - Data 20061022 (CSV)(1 pg, 307 K) NLA 2007 Basin Landuse Metrics - Metadata 20091022 (TXT)(1 pg, 4 K)
Lakes 2007 Water Chemistry NLA 2007 Profile - Data 20091008 (CSV)(1 pg, 888 K) NLA 2007 Profile - Metadata 20091008 (TXT)(1 pg, 650 B)
Lakes 2007 Visual Assessment NLA 2007 Visual Assessment - Data 20091015 (CSV)(1 pg, 813 K) NLA 2007 Visual Assessment - Metadata 10091015 (TXT)(1 pg, 7 K)
Lakes 2007 Site Information NLA 2007 Site Information - Data 20091113 (CSV)(1 pg, 980 K) NLA 2007 Site Information - Metadata 20091113 (TXT)(1 pg, 8 K)
Lakes 2007 Notes National Lakes Assessment 2007 Final Data Notes  
Lakes 2007 Landscape Data NLA 2007 Buffer Landuse Metrics - Data 20091022 (CSV)(1 pg, 273 K) NLA 2007 Buffer Landuse Metrics - Metadata 20091022 (TXT)(1 pg, 4 K)
Lakes 2007 Landscape Data NLA 2007 Lake Polygon Shapefile (ZIP)(1 pg, 9 MB)  
Lakes 2007 Landscape Data NLA 2007 Basin Shapefile (ZIP)(1 pg, 14 MB)  
Lakes 2007 Benthic Macroinvertebrates NLA 2007 Benthic Condition - Data (CSV)(1 pg, 119 K) NLA 2007 Benthic Condition - Metadata (TXT)(1 pg, 1 K)
Lakes 2007 Benthic Macroinvertebrates NLA 2007 Benthic Metrics - Data (CSV)(1 pg, 749 K) NLA 2007 Benthic Metrics - Metadata (TXT)(1 pg, 13 K)
Lakes 2007 Benthic Macroinvertebrates NLA 2007 Benthic Count - Data (CSV)(1 pg, 7 MB) NLA 2007 Benthic Count - Metadata (TXT)(1 pg, 2 K)
Lakes 2007 Water Chemistry NLA 2007 Chemical Condition Estimates - Data 20091123 (CSV)(1 pg, 537 K) NLA 2007 Chemical Condition Estimates - Metadata 20091123 (TXT)(1 pg, 4 K)
Lakes 2007 Dissolved Oxygen NLA 2007 Mean DO Condition Estimate - Data 20091123 (CSV)(1 pg, 366 K) NLA 2007 Mean DO Condition Estimate - Metadata 20091123 (TXT)(1 pg, 3 K)
Lakes 2007 Dissolved Oxygen NLA 2007 Mean DO - Data 20091007 (CSV)(1 pg, 31 K) NLA 2007 Mean DO - Metadata 20091007 (RXT)(1 pg, 198 B)
Lakes 2007 Physical Habitat NLA 2007 PHab Index Values - Data (CSV)(1 pg, 722 K) NLA 2007 PHab Index Values - Metadata 20091120 (TXT)(1 pg, 6 K)
Lakes 2007 Physical Habitat NLA 2007 PHab Condition Estimates - Data 20091130 (CSV)(1 pg, 519 K) NLA 2007 PHab Condition Estimates - Metadata 20091130 (TXT)(1 pg, 4 K)
Lakes 2007 Physical Habitat NLA 2007 PHab Metrics A - Data (CSV)(1 pg, 1 MB) NLA 2007 PHab Metrics - Metadata 20091120 (TXT)(1 pg, 38 K)
Lakes 2007 Physical Habitat NLA 2007 Phab Metrics B - Data (CSV)(1 pg, 2 MB) NLA 2007 PHab Metrics - Metadata 20091120 (TXT)(1 pg, 38 K)
Lakes 2007 Phytoplankton NLA 2007 Phytoplankton Soft Algae Count - Data 20091023 (CSV)(1 pg, 12 MB) NLA 2007 Phytoplankton Soft Algae Count - Metadata 20091023 (TXT)(1 pg, 3 K)
Lakes 2007 Phytoplankton NLA 2007 _Phytoplankton Diatom Count - Data 20091125 (CSV)(1 pg, 4 MB) NLA 2007 Phytoplankton Diatom Count - Metadata 20091125 (TXT)(1 pg, 2 K)
Lakes 2007 Phytoplankton NLA 2007 Phytoplankton Sample Information - Data 20091023 (CSV)(1 pg, 223 K) NLA 2007 Phytoplankton Sample Info - Metadata 20091023 (TXT)(1 pg, 2 K)
Lakes 2007 Plankton NLA 2007 Plankton O/E Model Analysis - Data 20091019 (CSV)(1 pg, 2 MB) NLA 2007 Plankton O/E Model Analysis Data - Metadata 20091019 (TXT)(1 pg, 373 B)
Lakes 2007 Plankton NLA 2007 Plankton O/E Model - Valid Sites Used 20091021 (CSV)(1 pg, 131 K) NLA 2007 Plankton O/E Model - Valid Sites Used - Metadata 20091021 (TXT)(1 pg, 1 K)
Lakes 2007 Plankton NLA 2007 Plankton O/E Model Condition Estimates 20091125 (CSV)(1 pg, 442 K) NLA 2007 Plankton O/E Model Condition Estimates - Metadata 20091125 (TXT)(1 pg, 4 K)
Lakes 2007 Recreation NLA 2007 Recreational Condition Estimates 20091123 (CSV)(1 pg, 517 K) NLA 2007 Recreational Condition Estimates - Metadata 20091123 (TXT)(1 pg, 4 K)
Lakes 2007 Secchi NLA 2007 Secchi - Data 20091008 (CSV)(1 pg, 60 K) NLA 2007 Secchi - Metadata 20091008 (TXT)(1 pg, 562 B)
Lakes 2007 Trophic Status NLA 2007 Trophic Condition Estimate - Data 20091123 (CSV)(1 pg, 522 K) NLA 2007 Trophic Condition Estimate - Metadata 20091123 (TXT)(1 pg, 4 K)
Lakes 2007 Water Isotope Variables NLA 2007 Water Isotope Variables - Data (CSV)(1 pg, 118 K) NLA 2007 Water Isotope Variables - Metadata (TXT)(1 pg, 2 K)
Lakes 2007 Zooplankton NLA 2007 Zooplankton Sample Information - Data 20091020 (CSV)(1 pg, 207 K) NLA 2007 Zooplankton Sample Information - Metadata (TXT)(1 pg, 929 B)
Lakes 2007 Zooplankton NLA 2007 Zooplankton Count Data - 20091022 (CSV)(1 pg, 7 MB) NLA2007 Zooplankton Count - Metadata 20091022 (TXT)(1 pg, 4 K)
Streams 2004 All WSA All Data (ZIP)(1 pg, 7 MB)  
Streams 2004 Benthic Macroinvertebrates WSA Benthics Count (Part 1) - Data (CSV)(1 pg, 8 MB) WSA Benthics Count - Metadata (TXT)(1 pg, 3 K)
Streams 2004 Benthic Macroinvertebrates WSA Benthics Count (Part 2) - Data (CSV)(1 pg, 2 MB) WSA Benthics Count - Metadata (TXT)(1 pg, 3 K)
Streams 2004 Benthic Macroinvertebrates WSA Benthics Metrics - Data (CSV)(1 pg, 2 MB) WSA Benthics Metrics - Data (TXT)(1 pg, 17 K)
Streams 2004 Landscape Data WSA Watershed Stressor - Data (CSV)(1 pg, 90 K) WSA Watershed Stressor - Metadata (TXT)(1 pg, 3 K)
Streams 2004 Landscape Data WSA 2004 Watersheds Shapefile (ZIP)(14 MB)  
Streams 2004 Physical Habitat WSA Canopy Cover (Part1) - Data (CSV)(1 pg, 3 MB) WSA Canopy Cover - Metadata (TXT)(1 pg, 2 K)
Streams 2004 Physical Habitat WSA Canopy Cover (Part 2) - Data (CSV)(1 pg, 2 MB) WSA Canopy Cover - Metadata (TXT)(1 pg, 2 K)
Streams 2004 Physical Habitat WSA Channel Constraint - Data (CSV)(1 pg, 120 K) WSA Channel Constraint - Metadata (TXT)(1 pg, 2 K)
Streams 2004 Physical Habitat WSA Fish Cover - Data (CSV)(1 pg, 2 MB) WSA Fish Cover - Metadata (TXT)(1 pg, 4 K)
Streams 2004 Physical Habitat WSA Large Woody Debris - Data (CSV)(1 pg, 1 MB) WSA Large Woody Debris - Metadata (TXT)(1 pg, 5 K)
Streams 2004 Physical Habitat WSA Legacy Tree - Data (CSV)(1 pg, 1 MB) WSA Legacy Tree - Metadata (TXT)(1 pg, 2 K)
Streams 2004 Physical Habitat WSA Legacy Tree Metrics - Data (CSV)(1 pg, 257 K) WSA Legacy Tree Metrics - Metadata (TXT)(1 pg, 3 K)
Streams 2004 Physical Habitat WSA Mesotransect Substrate - Data (CSV)(1 pg, 1 MB) WSA Mesotransect Substrate - Metadata (TXT)(1 pg, 3 K)
Streams 2004 Physical Habitat WSA PHab Best Metrics - Data (CSV)(1 pg, 976 K) WSA PHab Best Metrics - Metadata (TXT)(1 pg, 10 K)
Streams 2004 Physical Habitat WSA PHab Metrics (Part 1) - Data (CSV)(1 pg, 2 MB) WSA PHab Metrics - Metadata (TXT)(1 pg, 58 K)
Streams 2004 Physical Habitat WSA PHab Metrics (Part 2) - Data (CSV)(1 pg, 3 MB) WSA PHab Metrics - Metadata (TXT)(1 pg, 58 K)
Streams 2004 Physical Habitat WSA Rapid Habitat Assessment - Data (CSV)(1 pg, 95 K) WSA Rapid Habitat Assessment - Metadata (TXT)(1 pg, 4 K)
Streams 2004 Physical Habitat WSA Rapid Habitat Metrics - Data (CSV)(1 pg, 124 K) WSA Rapid Habitat Metrics - Metadata (TXT)(1 pg, 4 K)
Streams 2004 Physical Habitat WSA Visual Riparian - Data (CSV)(1 pg, 6 MB) WSA Visual Riparian - Metadata (TXT)(1 pg, 6 K)
Streams 2004 Site Information WSA Site Information (CSV)(1 pg, 986 K) WSA Site Information - Metadata (TXT)(1 pg, 11 K)
Streams 2004 Stream Velocity WSA Stream Velocity - Data (CSV)(1 pg, 126 K) WSA Stream Velocity - Metadata (TXT)(1 pg, 3 K)
Streams 2004 Thalweg WSA Thalweg (Part 1) - Data (CSV)(1 pg, 10 MB) WSA Thalweg - Metadata (TXT)(1 pg, 6 K)
Streams 2004 Thalweg WSA Thalweg (Part 2) - Data (CSV)(1 pg, 10 MB) WSA Thalweg - Metadata (TXT)(1 pg, 6 K)
Streams 2004 Thalweg WSA Thalweg (Part 3) - Data (CSV)(1 pg, 5 MB) WSA Thalweg - Metadata (TXT)(1 pg, 6 K)
Streams 2004 Site Information WSA Verification - Data (CSV)(1 pg, 370 K) WSA Verification - Metadata (TXT)(1 pg, 6 K)
Streams 2004 Water Chemistry WSA Water Chemistry - Data (CSV)(1 pg, 568 K) WSA Water Chemistry - Metadata (TXT)(1 pg, 8 K)
Streams 2004 Water Chemistry WSA Water Chemistry (Field) - Data (CSV)(1 pg, 360 K) WSA Water Chemistry (Field) - Metadata (TXT)(1 pg, 6 K)
Coastal 1999-2001/2005-2006 Benthic Macroinvertebrates NCA Benthics - Data (XLSX)(1 pg, 6 MB)  
Coastal 1999-2001/2005-2006 Sediment Chemistry NCA Sediment Chemistry - Data (XLSX)(1 pg, 17 MB)  
Coastal 1999-2001/2005-2006 Site Information NCA Site Information - Data (XLSX)(1 pg, 55 MB)  
Coastal 1999-2001/2005-2006 Water Chemistry NCA Water Chemistry - Data (XLSX)(1 pg, 87 MB)  
Rivers and Streams 2008-2009 Benthic Macroinvertebrates NRSA 0809 Benthic Macroinvertebrate MMI and Condition Class - Data (CSV)(1 pg, 358 K) NRSA 0809 Benthic Macroinvertebrate MMI and Condition Class - Metadata (TXT)(1 pg, 3 K)
Rivers and Streams 2008-2009 Benthic Macroinvertebrates NRSA 0809 Benthic Taxa List and Autecology - Data (CSV)(1 pg, 142 K) NRSA 0809 Benthic Taxa List and Autecology - Metadata (TXT)(1 pg, 2 K)
Rivers and Streams 2008-2009 Water Chemistry NRSA 0809 Water Chemistry - Data (CSV)(1 pg, 488 K) NRSA 0809 Water Chemistry - Metadata (TXT)(1 pg, 2 K)
Rivers and Streams 2008-2009 Water Chemistry NRSA 0809 Water Chemistry Indicator Values and Condition Class - Data (CSV)(1 pg, 240 K) NRSA 0809 Water Chemistry Indicator Values and Condition Class - Metadata (TXT)(1 pg, 1 K)
Rivers and Streams 2008-2009 Enterococci NRSA 0809 Enterococci Indicator and Condition Class - Data (CSV)(1 pg, 232 K) NRSA 0809 Enterococci Indicator and Condition Class - Metadata (TXT)(1 pg, 668 B)
Rivers and Streams 2008-2009 Fish NRSA 0809 Fish MMI and Condition Class - Data (CSV)(1 pg, 459 K) NRSA 0809 Fish MMI and Condition Class - Metadata (TXT(1 pg, 4 K)
Rivers and Streams 2008-2009 Fish NRSA 0809 Fish Field Collection Data - Data (CSV)(1 pg, 4 MB) NRSA 0809 Fish Field Collection Data - Metadata (TXT)(1 pg, 2 K)
Rivers and Streams 2008-2009 Fish NRSA 0809 Fish Metric Values - Data (CSV)(1 pg, 2 MB) NRSA 0809 Fish Metric Values - Metadata (TXT)(1 pg, 15 K)
Rivers and Streams 2008-2009 Landscape Data NRSA 0809 Landscape Metrics - Data (CSV)(1 pg, 1 MB) NRSA 0809 Landscape Metrics - Metadata (TXT)(1 pg, 10 K)
Rivers and Streams 2008-2009 Landscape Data NRSA 0809 Watersheds Shapefile (ZIP)(1 pg, 134 MB)  
Rivers and Streams 2008-2009 Physical Habitat NRSA 0809 Physical Habitat Indicator Metrics and Condition Classes - Data (CSV)(1 pg, 278 K) NRSA 0809 Physical Habitat Indicator Metrics and Condition Classes - Metadata (TXT)(1 pg, 2 K)
Rivers and Streams 2008-2009 Physical Habitat NRSA 0809 Physical Habitat Most Common Metrics - Data (CSV)(1 pg, 2 MB) NRSA 0809 Physical Habitat Most Common Metrics - Metadata (TXT)(1 pg, 10 K)
Rivers and Streams 2008-2009 Physical Habitat NRSA 0809 Physical Habitat Larger Set of Metrics - Data (CSV)(1 pg, 4 MB) NRSA 0809 Physical Habitat Larger Set of Metrics - Metadata (TXT)(1 pg, 22 K)
Rivers and Streams 2008-2009 Site Information NRSA 0809 Site Information - Data (CSV)(1 pg, 543 K) NRSA 0809 Site Information - Metadata (TXT)(1 pg, 2 K)
Rivers and Streams 2008-2009 Site Information External Data: Site Information - Data (CSV)(1 pg, 2 MB) External Data: Site Information - Metadata (TXT)(1 pg, 2 K)
Rivers and Streams 2008-2009 Benthic Macroinvertebrates External Data: Benthic Reference Site Metrics, MMI, and Condition Class - Data (CSV)(1 pg, 391 K) External Data: Benthic Reference Site Metrics, MMI, and Condition Class - Metadata (TXT)(1 pg, 3 K)
Rivers and Streams 2008-2009 Fish External Data: Fish Metrics - Data (CSV)(1 pg, 2 MB) External Data: Fish Metrics - Metadata (TXT)(1 pg, 993 B)
Rivers and Streams 2008-2009 Fish External Data: Fish Reference Site Metrics, MMI, and Condition Class - Data (CSV)(1 pg, 59 K) External Data: Fish Reference Site Metrics, MMI, and Condition Class - Metadata (TXT)(1 pg, 4 K)
Rivers and Streams 2008-2009 Benthic Macroinvertebrates External Data: Benthic Macroinvertebrate Count - Data (CSV)(1 pg, 34 MB) External Data:Benthic Macroinvertebrate Count - Metadata (TXT)(1 pg, 822 B)
Rivers and Streams 2008-2009 Field Chemistry Measures NRSA 0809 Field Chemistry Measures - Data (CSV)(1 pg, 251 K) NRSA 0809 Field Chemistry Measures - Metadata (TXT)(1 pg, 371 B)
Rivers and Streams 2008-2009 Benthic Macroinvertebrates NRSA 0809 Benthic Macroinvertebrate Count - Data (CSV)(1 pg, 8 MB) NRSA 0809 Benthic Macroinvertebrate Count - Metadata (TXT)(1 pg, 874 B)
Coastal 2010 Site Information NCCA 2010 Assessed Site Information Revised - Data (CSV)(1 pg, 294 K) NCCA 2010 Site Information Revised - Metadata (TXT)(1 pg, 4 K)
Coastal 2010 Site Information NCCA 2010 Not Assessed Site Information Revised - Data (CSV)(1 pg, 179 K) NCCA 2010 Site Information Revised - Metadata (TXT)(1 pg, 4 K)
Coastal 2010 Benthic Macroinvertebrates NCCA 2010 Assessed Benthics - Data (CSV)(1 pg, 4 MB) NCCA 2010 Benthics - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Benthic Macroinvertebrates NCCA 2010 Not Assessed Benthics - Data (CSV)(1 pg, 968 K) NCCA 2010 Benthics - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Benthic Macroinvertebrates NCCA 2010 Benthic Indicator Status - Data (CSV)(1 pg, 308 K) NCCA 2010 Benthic Indicator Status - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Fish NCCA 2010 Ecological Fish Tissue Collection Information - Data (CSV)(1 pg, 590 K) NCCA 2010 Ecological Fish Tissue Collection Information - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Fish NCCA 2010 Assessed Ecological Fish Tissue Contaminants - Data (CSV)(1 pg, 18 MB) NCCA 2010 Ecological Fish Tissue Contaminants - Metadata (TXT)(1 pg, 2 K)
Coastal 2010 Fish NCCA 2010 Not Assessed Ecological Fish Tissue Contaminants - Data (CSV)(1 pg, 655 K) NCCA 2010 Ecological Fish Tissue Contaminants - Metadata (TXT)(1 pg, 2 K)
Coastal 2010 Fish NCCA 2010 Ecological Fish Tissue Contaminants Status - Data (CSV)(1 pg, 283 K) NCCA 2010 Ecological Fish Tissue Contaminants Status - Metadata (TXT)(1 pg, 2 K)
Coastal 2010 Hydrographic Profile NCCA 2010 Assessed Hydrographic Profile - Data (CSV)(1 pg, 9 MB) NCCA 2010 Hydrographic Profile - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Hydrographic Profile NCCA 2010 Not Assessed Hydrographic Profile - Data (CSV)(1 pg, 2 MB) NCCA 2010 Hydrographic Profile - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Sediment Chemistry NCCA 2010 Assessed Sediment Chemistry Revised - Data (CSV)(1 pg, 17 MB) NCCA 2010 Sediment Chemistry Revised - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Sediment Chemistry NCCA 2010 Not Assessed Sediment Chemistry Revised - Data (CSV)(1 pg, 4 MB) NCCA 2010 Sediment Chemistry Revised - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Sediment Toxicity NCCA 2010 Assessed Sediment Toxicity Control Results - Data (CSV)(1 pg, 72 K) NCCA 2010 Sediment Toxicity - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Sediment Toxicity NCCA 2010 Not Assessed Sediment Toxicity Control Results - Data (CSV)(1 pg, 71 K) NCCA 2010 Sediment Toxicity - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Sediment Toxicity NCCA 2010 Assessed Sediment Toxicity Control Summary - Data (CSV)(1 pg, 23 K) NCCA 2010 Sediment Toxicity - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Sediment Toxicity NCCA 2010 Not Assessed Sediment Toxicity Control Summary - Data (CSV)(1 pg, 23 K) NCCA 2010 Sediment Toxicity - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Sediment Toxicity NCCA 2010 Assessed Sediment Toxicity Results - Data (CSV)(1 pg, 336 K) NCCA 2010 Sediment Toxicity - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Sediment Toxicity NCCA 2010 Not Assessed Sediment Toxicity Results - Data (CSV)(1 pg, 70 K) NCCA 2010 Sediment Toxicity - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Sediment Toxicity NCCA 2010 Assessed Sediment Toxicity Summary - Data (CSV)(1 pg, 110 K) NCCA 2010 Sediment Toxicity - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Sediment Toxicity NCCA 2010 Not Assessed Sediment Toxicity Summary - Data (CSV)(1 pg, 23 K) NCCA 2010 Sediment Toxicity - Metadata (TXT)(1 pg, 3 K)
Coastal 2010 Sediment NCCA 2010 Sediment Indicator Status Revised - Data (CSV)(1 pg, 367 K) NCCA 2010 Sediment Indicator Status Revised - Metadata (TXT)(1 pg, 4 K)
Coastal 2010 Underwater Video NCCA 2010 Underwater Video Highlight - Data (CSV)(1 pg, 66 K) NCCA 2010 Underwater Video Highlight - Metadata (TXT)(1 pg, 13 K)
Coastal 2010 Water Chemistry NCCA 2010 Assessed Water Chemistry - Data (CSV)(1 pg, 901 K) NCCA 2010 Water Chemistry - Metadata (TXT)(1 pg, 2 K)
Coastal 2010 Water Chemistry NCCA 2010 Not Assessed Water Chemistry - Data (CSV)(1 pg, 412 K) NCCA 2010 Water Chemistry - Metadata (TXT)(1 pg, 2 K)
Coastal 2010 Water Chemistry NCCA 2010 Water Quality Indicator Status - Data (CSV)(1 pg, 364 K) NCCA 2010 Water Quality Indicator Status - Metadata (TXT)(1 pg, 4 K)
Coastal 2010 All NCCA 2010 Quality Assurance Codes - (CSV)(1 pg, 4 K)  
Wetlands 2011 Algal Toxin NWCA 2011 Algal Toxin - Data (CSV)(1 pg, 53 K) NWCA 2011 Algal Toxin - Metadata (TXT)(1 pg, 469 B)
Wetlands 2011 All Indicators NWCA 2011 Condition and Stressor Indicator Values - Data (CSV)(1 pg, 351 K) NWCA 2011 Condition and Stressor Indicator Values - Metadata (TXT)(1 pg, 7 K)
Wetlands 2011 Buffer Characterization NWCA 2011 Buffer Characterization - Data (CSV)(1 pg, 19 MB) NWCA 2011 Buffer Characterization - Metadata (TXT)(1 pg, 9 K)
Wetlands 2011 Chlorophyll-a NWCA 2011 Chlorophyll-a - Data (CSV)(1 pg, 61 K) NWCA 2011 Chlorophyll-a - Metadata (TXT)(1 pg, 830 B)
Wetlands 2011 Disturbance Gradient NWCA 2011 Disturbance Gradient Inputs - Data (CSV)(1 pg, 150 K) NWCA 2011 Disturbance Gradient Inputs - Metadata (TXT)(1 pg, 3 K)
Wetlands 2011 Hydrology NWCA 2011 Hydrology - Data (CSV)(1 pg, 581 K) NWCA 2011 Hydrology - Metadata (TXT)(1 pg, 13 K)
Wetlands 2011 Landscape Data NWCA 2011 Landscape Metrics - Data (CSV)(1 pg, 2 MB) NWCA 2011 Landscape Metrics - Metadata (TXT)(1 pg, 32 K)
Wetlands 2011 Sediment NWCA 2011 Sediment Enzymes - Data (CSV)(1 pg, 945 K) NWCA 2011 Sediment Enzymes - Metadata (TXT)(1 pg, 5 K)
Wetlands 2011 Site Information NWCA 2011 AA Characterization - Data (CSV)(1 pg, 213 K) NWCA 2011 AA Characterization - Metadata (TXT)(1 pg, 3 K)
Wetlands 2011 Site Information NWCA 2011 Site Information - Data (CSV)(1 pg, 837 K) NWCA 2011 Site Information - Metadata (TXT)(1 pg, 9 K)
Wetlands 2011 Soil Chemistry NWCA 2011 Soil Chemistry - Data (CSV)(1 pg, 2 MB) NWCA 2011 Soil Chemistry - Metadata (TXT)(1 pg, 4 K)
Wetlands 2011 Soil Profile NWCA 2011 Soil Profile Horizon Descriptions - Data (CSV)(1 pg, 3 MB) NWCA 2011 Soil Profile Horizon Descriptions - Metadata (TXT)(1 pg, 4 K)
Wetlands 2011 Soil Profile NWCA 2011 Soil Profile Pit Attributes and Hydric Indicators - Data (CSV)(1 pg, 747 K) NWCA 2011 Soil Profile Pit Attributes and Hydric Indicators - Metadata (TXT)(1 pg, 4 K)
Wetlands 2011 Surface Water Characterization NWCA 2011 Surface Water Characterization - Data (CSV)(1 pg, 333 K) NWCA 2011 Surface Water Characterization - Metadata (TXT)(1 pg, 5 K)
Wetlands 2011 USARAM NWCA 2011 USARAM Attribute Values - Data (CSV)(1 pg, 3 MB) NWCA 2011 USARAM Attribute Values - Metadata (TXT)(1 pg, 13 K)
Wetlands 2011 USARAM NWCA 2011 USARAM Summary - Data (CSV)(1 pg, 130 K) NWCA 2011 USARAM Summary - Metadata (TXT)(1 pg, 2 K)
Wetlands 2011 Vegetation NWCA 2011 Floras Used and Veg Plot Layout - Data (CSV)(1 pg, 314 K) NWCA 2011 Floras Used and Veg Plot Layout - Metadata (TXT)(1 pg, 2 K)
Wetlands 2011 Vegetation NWCA 2011 Plant Taxonomy and Life History - Data (CSV)(1 pg, 543 K) NWCA 2011 Plant Taxonomy and Life History - Metadata (TXT)(1 pg, 2 K)
Wetlands 2011 Vegetation NWCA 2011 Plant CC and Native Status Values - Data (CSV)(1 pg, 831 K) NWCA 2011 Plant CC and Native Status Values - Metadata (TXT)(1 pg, 2 K)
Wetlands 2011 Vegetation NWCA 2011 Plant Vouchers - Data (CSV)(1 pg, 976 K) NWCA 2011 Plant Vouchers - Metadata (TXT)(1 pg, 608 B)
Wetlands 2011 Vegetation NWCA 2011 Plant Wetland Indicator Status - Data (CSV)(1 pg, 1 MB) NWCA 2011 Plant Wetland Indicator Status - Metadata (TXT(1 pg, 706 B)
Wetlands 2011 Vegetation NWCA 2011 Trees - Data (CSV)(1 pg, 20 MB) NWCA 2011 Trees - Metadata (TXT)(1 pg, 3 K)
Wetlands 2011 Vegetation NWCA 2011 Veg Plot Location - Data (CSV)(1 pg, 158 K) NWCA 2011 Veg Plot Location - Metadata (TXT)(1 pg, 1 K)
Wetlands 2011 Vegetation NWCA 2011 Vegetation MMI Values - Data (CSV)(1 pg, 131 K) NWCA 2011 Vegetation MMI Values - Metadata (TXT)(1 pg, 2 K)
Wetlands 2011 Vegetation NWCA 2011 Vegetation Type and Ground Surface - Data (CSV)(1 pg, 2 MB) NWCA 2011 Vegetation Type and Ground Surface - Metadata (TXT)(1 pg, 5 K)
Wetlands 2011 Vegetation NWCA 2011 Plant Species Cover and Height - Data (CSV)(1 pg, 24 MB) NWCA 2011 Plant Species Cover and Height - Metadata (TXT)(1 pg, 2 K)
Wetlands 2011 Vegetation NWCA 2011 Vegetation Metrics - Data (CSV)(1 pg, 2 MB) NWCA 2011 Vegetation Metrics - Metadata (TXT)(1 pg, 57 K)
Wetlands 2011 Water Chemistry NWCA 2011 Water Chemistry - Data (CSV)(1 pg, 166 K) NWCA 2011 Water Chemistry - Metadata (TXT)(1 pg, 1 K)
Lakes 2012 Algal Toxin NLA 2012 Algal Toxins - Data (CSV)(1 pg, 225 K) NLA 2012 Algal Toxins - Metadata (TXT)(1 pg, 2 K)
Lakes 2012 Atrazine NLA 2012 Atrazine - Data (CSV)(1 pg, 156 K) NLA 2012 Atrazine - Metadata (TXT)(1 pg, 1 K)
Lakes 2012 Benthic Macroinvertebrates NLA 2012 Benthic Condition - Data (CSV)(1 pg, 115 K) NLA 2012 Benthic Condition - Metadata (TXT)(1 pg, 1 K)
Lakes 2012 Benthic Macroinvertebrates NLA 2012 Benthic Count - Data (CSV)(1 pg, 7 MB) NLA 2012 Benthic Count - Metadata (TXT)(1 pg, 2 K)
Lakes 2012 Benthic Macroinvertebrates NLA 2012 Benthic Metrics - Data (CSV)(1 pg, 782 K) NLA 2012 Benthic Metrics - Metadata (TXT)(1 pg, 13 K)
Lakes 2012 Benthic Macroinvertebrates NLA 2012 Benthic Taxa List - Data (CSV)(1 pg, 79 K) NLA 2012 Benthic Taxa List - Metadata (TXT)(1 pg, 1 K)
Lakes 2012 Chlorophyll-a NLA 2012 Chlorophyll-a - Data (CSV)(1 pg, 172 K) NLA 2012 Chlorophyll-a - Metadata (TXT)(1 pg, 3 K)
Lakes 2012 Physical Habitat NLA 2012 Phab - Data (CSV)(1 pg, 8 MB) NLA 2012 Phab - Metadata (TXT)(1 pg, 13 K)
Lakes 2012 All NLA 2012 Condition Categories - Data (CSV)(1 pg, 407 K) NLA 2012 Condition Categories - Metadata (CSV)(1 pg, 8 K)
Lakes 2012 All NLA 2012 Key Variables - Data (CSV)(336 K) NLA 2012 Key Variables - Metadata (TXT)(1 pg, 4 K)
Lakes 2012 Landscape Data NLA 2012 Lake Polygon Shapefile (ZIP)(1 pg, 25 MB)  
Lakes 2012 Landscape Data NLA 2012 Basin Shapefile (ZIP)(1 pg, 7 MB)  
Lakes 2012 Landscape Data NLA 2012 Watershed Variables - Data (CSV)(3 MB) NLA 2012 Watershed Variables - Metadata (TXT)(51 K)
Lakes 2012 Physical Habitat NLA 2012 Phab Metrics - Data (CSV)(1 pg, 3 MB) NLA 2012 Phab Metrics - Metadata (TXT)(1 pg, 62 K)
Lakes 2012 Phytoplankton NLA 2012 Phytoplankton Count - Data (CSV)(1 pg, 9 MB) NLA 2012 Phytoplankton Count - Metadata (TXT)(1 pg, 4 K)
Lakes 2012 Phytoplankton NLA 2012 Phytoplankton Taxa List - Data (CSV)(1 pg, 126 K) NLA 2012 Phytoplankton Taxa List - Metadata (TXT)(1 pg, 728 B)
Lakes 2012 Water Chemistry NLA 2012 Profile - Data (CSV)(1 pg, 3 MB) NLA 2012 Profile - Metadata (TXT)(1 pg, 4 K)
Lakes 2012 Secchi NLA 2012 Secchi - Data (CSV)(1 pg, 97 K) NLA 2012 Secchi - Metadata (TXT)(1 pg, 988 B)
Lakes 2012 Sediment NLA 2012 Sediment Mercury - Data (CSV)(1 pg, 100 K) NLA 2012 Sediment Mercury - Metadata (TXT)(1 pg, 1 K)
Lakes 2012 Site Information NLA 2012 Site Information - Data (CSV)(1 pg, 2 MB) NLA 2012 Site Information - Metadata (TXT)(1 pg, 17 K)
Lakes 2012 Water Chemistry NLA 2012 Water Chemistry - Data (CSV)(1 pg, 1 MB) NLA 2012 Water Chemistry - Metadata (TXT)(1 pg, 14 K)
Lakes 2012 Water Isotope Variables NLA 2012 Water Isotope Variables - Data (CSV)(1 pg, 141 K) NLA 2012 Water Isotope Variables - Metadata (TXT)(1 pg, 2 K)
Lakes 2012 Zooplankton NLA 2012 Zooplankton Condition - Data (CSV)(1 pg, 116 K) NLA 2012 Zooplankton Condition - Metadata (TXT)(1 pg, 1 K)
Lakes 2012 Zooplankton NLA 2012 Zooplankton Metrics - Data (CSV)(1 pg, 1 MB) NLA 2012 Zooplankton Metrics - Metadata (TXT)(1 pg, 33 K)
Lakes 2012 Zooplankton NLA 2012 Zooplankton Taxa List - Data (CSV)(1 pg, 71 K) NLA 2012 Zooplankton Taxa List - Metadata (TXT)(1 pg, 1 K)
Lakes 2012 Zooplankton NLA 2012 Zooplankton Count - Data (CSV)(1 pg, 7 MB) NLA 2012 Zooplankton Count - Metadata (TXT)(1 pg, 2 K)
Rivers and Streams 2013-2014 All NRSA 1314 Key Variables and Classification Categories - Data (CSV)(1 MB) NRSA 1314 Key Variables and Classification Categories - Metadata (TXT)(8 K)
Rivers and Streams 2013-2014 Algal Toxin NRSA 1314 Microcystin - Data (CSV)(207 K) NRSA 1314 Microcystin - Metadata (TXT)(943 B)
Rivers and Streams 2013-2014 Benthic Macroinvertebrates NRSA 1314 Benthic Macroinvertebrate MMI - Data (CSV)(313 K) NRSA 1314 Benthic Macroinvertebrate MMI - Metadata (TXT)(4 K)
Rivers and Streams 2013-2014 Benthic Macroinvertebrates NRSA 1314 Benthic Taxa List - Data (CSV)(165 K) NRSA 1314 Benthic Taxa List - Metadata (TXT)(2 K)
Rivers and Streams 2013-2014 Benthic Macroinvertebrates NRSA 1314 Benthic Macroinvertebrate Count - Data (CSV)(12 MB) NRSA 1314 Benthic Macroinvertebrate Count - Metadata (TXT)(1 K)
Rivers and Streams 2013-2014 Benthic Macroinvertebrates NRSA 1314 Benthic Macroinvertebrate Metrics - Data (CSV)(1 MB) NRSA 1314 Benthic Macroinvertebrate Metrics - Metadata (TXT)(22 K)
Rivers and Streams 2013-2014 Chlorophyll-a NRSA 1314 Periphyton Chlorophyll - Data (CSV)(541 K) NRSA 1314 Periphyton Chlorophyll - Metadata (TXT)(2 K)
Rivers and Streams 2013-2014 Chlorophyll-a NRSA 1314 Water Column Chlorophyll - Data (CSV)(489 K) NRSA 1314 Water Column Chlorophyll - Metadata (TXT)(2 K)
Rivers and Streams 2013-2014 Enterococci NRSA 1314 Enterococci Indicator - Data (CSV)(210 K) NRSA 1314 Enterococci Indicator - Metadata (TXT)(265 B)
Rivers and Streams 2013-2014 Field Chemistry Measures NRSA 1314 Field Chemistry Measures - Data (CSV)(300 K) NRSA 1314 Field Chemistry Measures - Metadata (TXT)(903 B)
Rivers and Streams 2013-2014 Fish NRSA 1314 Fish MMI - Data (CSV)(523 K) NRSA 1314 Fish MMI - Metadata (TXT)(9 K)
Rivers and Streams 2013-2014 Fish NRSA 1314 Fish Counts - Data (CSV)(3 MB) NRSA 1314 Fish Counts - Metadata (TXT)(1 K)
Rivers and Streams 2013-2014 Fish NRSA 1314 Fish Metric Values - Data (CSV)(1 MB) NRSA 1314 Fish Metric Values - Metadata (TXT)(13 K)
Rivers and Streams 2013-2014 Fish NRSA 1314 Fish Taxa List - Data (CSV)(81 K) NRSA 1314 Fish Taxa List - Metadata (TXT)(1 K)
Rivers and Streams 2013-2014 Fish NRSA 1314 Mercury in Fish Tissue Plugs - Data (CSV)(257 K) NRSA 1314 Mercury in Fish Tissue Plugs - Metadata (TXT)(1 K)
Rivers and Streams 2013-2014 Landscape Data NRSA 1314 Landscape Metrics - Data (CSV)(2 MB) NRSA 1314 Landscape Metrics - Metadata (TXT)(24 K)
Rivers and Streams 2013-2014 Landscape Data NRSA 1314 Watersheds Shapefile (ZIP)(28 MB)  
Rivers and Streams 2013-2014 Periphyton Biomass NRSA 1314 Periphyton Biomass - Data (CSV)(525 K) NRSA 1314 Periphyton Biomass - Metadata (TXT)(875 B)
Rivers and Streams 2013-2014 Physical Habitat NRSA 1314 Physical Habitat Indicator Metrics - Data (CSV)(292 K) NRSA 1314 Physical Habitat Indicator Metrics - Metadata (TXT)(405 B)
Rivers and Streams 2013-2014 Physical Habitat NRSA 1314 Physical Habitat Most Common Metrics - Data (CSV)(2 MB) NRSA 1314 Physical Habitat Most Common Metrics - Metadata (TXT)(4 K)
Rivers and Streams 2013-2014 Physical Habitat NRSA 1314 Physical Habitat Larger Set of Metrics - Data (CSV)(3 MB) NRSA 1314 Physical Habitat Larger Set of Metrics - Metadata (TXT)(8 K)
Rivers and Streams 2013-2014 Site Information NRSA 1314 Site Information - Data (CSV)(1 MB) NRSA 1314 Site Information - Metadata (TXT)(10 K)
Rivers and Streams 2013-2014 Water Chemistry NRSA 1314 Water Chemistry - Data (CSV)(4 MB) NRSA 1314 Water Chemistry - Metadata (TXT)(12 K)
Rivers and Streams 2013-2014 Water Chemistry NRSA 1314 Water Chemistry Indicator Values - Data (CSV)(241 K) NRSA 1314 Water Chemistry Indicator Values - Metadata (TXT)(439 B)

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National Aquatic Resource Surveys