Jump to main content or area navigation.

Contact Us

Superfund


   

Table 3-5 of the HRS Rule

Depth to aquifera (feet) Assigned value
 
Less than or equal to 25 5
Greater than 25 to 250 3
Greater than 250 1

a Use depth of all layers between the hazardous substances andaquifer.Assign a thickness of 0 feet to any karst aquifer thatunderlies anyportion of the sources at the site.

 

Superfund Help: Acronyms | Topics | Frequent Questions | Publications | Sitemap

OSWER Home | Superfund Home | Innovative Technologies Home