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
Effects of Thermal Treatment of Sludge on Municipal Wastewater Treatment Costs. Ewing, L. J; Almgren, H. H; Culp, R. L.	PB285707	1978	122 pages
Operation and Maintenance of Publicly-Owned Treatment Works (POTW's). Proceedings of the EPA National Conference Held at Chicago, Illinois on January 12-14, 1982.	PB84161405	1983	270 pages
EPA National Publications Catalog 1996.	PB2009111457	1996	890 pages
EPA National Publications Catalog 1995.	PB2009111456	1995	828 pages