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2. Peak-flow characteristics of Wyoming streams
3. Percentile distributions of median nitrite plus nitrate as nitrogen, total nitrogen, and total phosphorus concentrations in Oklahoma streams, 1973-2001
4. Periphyton communities in streams of the Ozarks plateaus and their relations to selected environmental factors
5. Pesticides and pesticide degradates in the East Fork Little Miami River and William H. Harsha Lake, southwestern Ohio, 1999-2000
6. Pesticides in surface water in the lower Illinois River Basin, 1996-98
7. Pesticides in surface water of the Yakima River basin, Washington, 1999-2000 : their occurrence and an assessment of factors affecting concentrations and loads
8. Pesticides in the lower Clackamas River basin, Oregon, 2000-01
9. Phosphorus and E. coli and their relation to selected constituents during storm runoff conditions in Fanno Creek, Oregon, 1998-99
10. Phosphorus and nitrogen concentrations and loads at Illinois River south of Siloam Springs, Arkansas, 1997-1999
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