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National Aquatic Resource Surveys

Manuals Used in the National Aquatic Resource Surveys

Various manuals are used to communicate the methods and guidelines for the National Aquatic Resource Surveys (NARS):

  • Field Operations Manual: Outlines the field protocols that crews will utilize to sample sites
  • Lab Operations Manual: Contains the methods for sample analysis
  • Quality Assurance Project Plan: Identifies the quality control measures in place to validate the quality of the data and collection
  • Site Evaluation Guidelines: Provides guidance on site assessment that must be done ahead of a sampling visit to ensure the site is sampleable and fits within the site requirements

On this page:


National Coastal Condition Assessment

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National Lakes Assessment

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National Rivers & Streams Assessment

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National Wetland Condition Assessment

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