National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

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Title/Authors	Accession Number	Publication Year	Page Count
Experimental Evaluation of the Mathematical Model for In situ Aquifer Restoration Processes. Short, T. E; Yeh, G. T.	PB93212363	1993	10 pages
Denitrification in Nonhomogeneous Laboratory Scale Aquifers: 4. Hydraulics, Nitrogen Chemistry, and Microbiology in a Single Layer. Lindstrom, F. T; Boersma, L; Myrold, D; Barlaz, M.	PB91182345	1991	98 pages
EPA National Publications Catalog 1995.	PB2009111456	1995	828 pages