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	Title	Date	Type
51	National water-quality assessment program; the central Nebraska basins	1991	Text
52	Nitrogen and phosphorus data for surface water in the Upper Colorado River basin, Colorado, 1980-94	1997	Text
53	Nitrogen and phosphorus loading from drained wetlands adjacent to Upper Klamath and Agency Lakes, Oregon	1997	Text
54	Nutrient dynamics in five off-stream reservoirs in the lower South Platte River basin, March-September 1995	2002	Text
55	Nutrients in the South Platte River, 1993-95	1995	Text
56	Occurrence and distribution of dissolved trace elements in the surface waters of the Yakima River Basin	2003	Text
57	Occurrence and distribution of dissolved trace elements in the surface waters of the Yakima River Basin, Washington, 1999-2000	2003	Text
58	Occurrence and transport of cadmium, lead, and zinc in the Spokane River Basin, Idaho and Washington, water years 1999 132001	2003	Text
59	Occurrence of Pesticides in Ground Water of the North Platte Natural Resources District, Nebraska, 2002	2003	Text
60	Occurrence of selected pharmaceutical and non-pharmaceutical compounds, and stable hydrogen and oxygen isotope ratios, in a riverbank filtration study, Platte River, Nebraska, 2001 to 2003, Volume 1	2005	Text
61	Occurrence of selected trace elements and organic compounds and their relation to land use in the Willamette River Basin, Oregon, 1992-94	1996	Text
62	Organochlorine compounds in streambed sediment and in biological tissue from streams and their relations to land use, central Arizona	2000	Text
63	Pesticides in surface water of the Yakima River Basin, Washington, 1999-2000-Their occurrence and an assessment of factors affecting concentrations and loads	2002	Text
64	Pesticides in surface water of the Yakima River Basin, Washington, 1999-2000-their occurrence and an assessment of factors affecting concentrations and loads	2002	Text
65	Pesticides in surface waters of the upper Colorado River basin, Colorado, 1996-98	2000	Text
66	Pesticides in the Lower Clackamas River Basin, Oregon, 2000-01	2004	Text
67	Phosphorus and E. Coli and their relation to selected constituents during storm runoff conditions in Fanno Creek, Oregon, 1998-99	2003	Text
68	Precipitation-runoff and streamflow-routing models for the Willamette River Basin, Oregon	1997	Text
69	Preliminary assessment of infiltration rates and effects on water quality of selected infiltration media for use in highway runoff retention basins in Washington State	2001-10	Text
70	Quality of shallow ground water in alluvial aquifers of the Willamette Basin, Oregon, 1993-95	1997	Text
71	Quality-assurance data, comparison to water-quality standards, and site considerations for total dissolved gas and water temperature, Lower Columbia River, Oregon and Washington, 2001	2001	Text
72	Relation between selected water-quality variables and lake level in Upper Klamath and Agency Lakes, Oregon	1996	Text
73	Relations of benthic macroinvertebrates to concentrations of trace elements in water, streambed sediments, and transplanted bryophytes and stream habitat conditions in nonmining and mining areas of the upper Colorado River basin, Colorado, 1995-98	2002	Text
74	Relations of Tualatin River water temperatures to natural and human-caused factors	1997	Text
75	Review of sediment data in the South Platte River Basin, Colorado, 1980-92	1995	Text

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