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      <h1  class="page-title">Great Lakes Initiative (GLI) Clearinghouse</h1>
      
    
            
    
    
    
  
    

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  <p>The GLI Clearinghouse is a central resource for developing water quality standards in the Great Lakes watershed. It contains information on criteria, toxicity data, exposure parameters and other supporting documents. It can be used to help establish water quality criteria, permit discharge limits, Total Maximum Daily Loads, Remedial Action Plans and Lakewide Management Plans.</p>
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      <h2 class="pane-title">Using <br>the GLI Clearinghouse</h2>
  
  
  
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    <p><a href="/gliclearinghouse/gli-clearinghouse-chemical-and-data-field-lists"><span
    class="figure image file file-image file-image-jpeg inline view-mode-medium" style="width:401px;"><img alt="bubbles and organic chemical diagrams" height="127" width="401" class="inline media-element file-medium inline" typeof="foaf:Image" src="/sites/production/files/styles/medium/public/2014-02/chemical.jpg" title="" /></span></a></p>

<ul><li><a href="/gliclearinghouse/download-clearinghouse">Download the Clearinghouse and Manual</a></li>
	<li><a href="/gliclearinghouse/you-use-gli-clearinghouse">Before You Use the GLI Clearinghouse</a></li>
	<li><a href="/gliclearinghouse/gli-clearinghouse-chemical-and-data-field-lists">What Chemicals and Data Fields Are Included?</a></li>
	<li><a href="/gliclearinghouse/where-gli-data-comes">Where the Data Comes From</a></li>
	<li><a href="/gliclearinghouse/gli-state-and-tribal-contacts">Contact Info for GLI States and Tribes</a></li>
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      <h2 class="pane-title">What Is the GLI?</h2>
  
  
  
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    <p><a href="/gliclearinghouse/about-great-lakes-initiative"><span
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<ul><li><a href="/gliclearinghouse/about-great-lakes-initiative">The Great Lakes Initiative</a></li>
	<li><a href="/gliclearinghouse/regulations-relevant-gli-clearinghouse">Regulations</a></li>
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      <h2 class="pane-title">Calculating Water Quality Criteria</h2>
  
  
  
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    <p><a href="/gliclearinghouse/gli-criteria-calculation-spreadsheets"><span
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<ul><li><a href="/gliclearinghouse/gli-criteria-calculation-spreadsheets">Criteria Calculation Spreadsheets</a></li>
	<li><a href="/gliclearinghouse/great-lakes-initiative-technical-support-documents">Technical Support for Regulations</a></li>
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      <h2 class="pane-title">Related Information</h2>
  
  
  
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    <ul><li><a href="http://www.access.gpo.gov/nara/cfr/waisidx_05/40cfr132_05.html">40 CFR Part 132 of the GLI</a></li>
	<li><a href="/standards-water-body-health">Water Quality Standards</a></li>
	<li><a href="http://water.epa.gov/type/watersheds/monitoring/index.cfm">Water Quality Monitoring</a></li>
	<li><a href="http://water.epa.gov/lawsregs/lawsguidance/cwa/tmdl/index.cfm#_ga=1.22616507.1417430549.1435241485">Total Maximum Daily Loads</a></li>
	<li><a href="http://water.epa.gov/polwaste/npdes/">National Pollutant Discharge Elimination System (NPDES)</a></li>
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      <h2 class="pane-title">Who Should Use the GLI Clearinghouse?</h2>
  
  
  
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    <p>In particular, States and Tribes can use the Clearinghouse to help derive criteria for pollutants without specific numeric criteria published in 40 CFR Part 132 of the GLI.</p>

<p>The target audience for the Clearinghouse is State and Tribal environmental agencies in the Great Lakes basin, as well as other interested parties with a technical background.</p>
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