Module 4: Community Right-To-Know
 
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Steps 15-16:  Calculating Aggregate Thresholds
Based on Mixtures of HCs		   Return
Step 117-18.  Calculating Aggregate Thresholds
Based on HC Components
     
  
 		  
    Calculating Aggregate Thresholds for EHSs, mixtures/products, or HCs    
     
  
 		  
    Step 19
 
For each Optional Aggregation Worksheet B (one for each product/mixture or HC) examine the weight recorded on line S, "Weight for 311 and 312".		    
     
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  note Step 20
 
Is the "Weight for 312" (line S) greater than or equal to 10,000 pounds, or the current EPA threshold for any of the products/mixtures or HCs present at the facility?		  
Yes
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Record these products/mixtures or HCs on the Tier II form PDF Forms. There is no need to complete the entire form at this time.		    
     
No
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Module 4, Steps 21 - 24		        
 
Go To: Module 4 Index or EPCRA's Main Index or EPCRA Table of Contents
 
DOE Office of Environmental Policy and Guidance