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.

Advanced Search

Enter search here
Only documents with full text

Only documents with full text

Fields

Select Field Select FieldSelect Field

Enter field filter here

Date Published

From Year From YearFrom Year TO To Year To YearTo Year

Refine

Search Results

Global FilterFilter Search

Sort By: Sort By:

Sort Order: Sort Order: Sort Order:

Title/Authors	Accession Number	Publication Year	Page Count	Download
Stream Chemistry in the Eastern United States. 1. Synoptic Survey Design, Acid-Base Status, and Regional Patterns. Kaufman, P. R; Herlihy, A. T; Mitch, M. E; Messer, J. J; Overton, W. S.	PB91206987	1991	19 pages
Stream Chemistry in the Eastern United States. 2. Current Sources of Acidity in Acidic and Low Acid-Neutralizing Capacity Streams. Herlihy, A. T; Kaufmann, P. R; Mitch, M. E.	PB91206979	1991	16 pages