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2. A new cation-exchange method for accurate field speciation of hexavalent chromium
3. Nitrogen and phosphorus in streams of the Great Miami River Basin, Ohio, 1998-2000
4. Numerical simulation of ground-water flow in La Crosse County, Wisconsin, and into nearby pools of the Mississippi River
5. Nutrient and chlorophyll relations in selected streams of the New England Coastal Basins in Massachusetts and New Hampshire, June-September 2001
6. Nutrient and suspended-sediment concentrations and loads and benthic-invertebrate data for tributaries to the St. Croix River, Wisconsin and Minnesota, 1997-99
7. Nutrient and suspended-sediment concentrations and loads and benthic-invertebrate data for tributaries to the St. Croix River, Wisconsin and Minnesota, 1997-99
8. Nutrient, trace-element, and ecological history of Musky Bay, Lac Courte Oreilles, Wisconsin, as inferred from sediment cores
9. Nutrients in shallow ground waters beneath relatively undeveloped areas in the conterminous United States
10. Natural attenuation of chlorinated volatile organic compounds in ground water at Operable Unit 1, Naval Undersea Warfare Center, Division Keyport, Washington
11. Natural attenuation of chlorinated volatile organic compounds in ground water at Operable Unit 1, Naval Undersea Warfare Center, Division Keyport, Washington
12. Near-real-time simulation and internet-based delivery of forecast-flood inundation maps using two-dimensional hydraulic modeling : a pilot study of the Snoqualmie River, Washington
13. Nitrogen and phosphorus concentrations and fluxes of streams in the Mississippi Embayment Study Unit, 1996-98
14. Numerical simulation of ground-water withdrawals in the southern Lihue Basin, Kauai, Hawaii
15. Nitrate concentrations, 1936-99, and pesticide concentrations, 1990-99, in the unconfined aquifer in the San Luis Valley, Colorado
16. Numerical simulation of ground-water flow and assessment of the effects of artificial recharge in the Rialto-Colton basin, San Bernardino County, California
17. Numerical simulation of ground-water flow and land subsidence at Edwards Air Force Base, Antelope Valley, California
18. Numerical simulation of streamflow distribution, sediment transport, and sediment deposition along Long Branch Creek in Northeast Missouri
19. Nutrient and suspended-sediment concentrations and loads and benthic-invertebrate data for tributaries to the St. Croix River, Wisconsin and Minnesota, 1997-99
20. Nutrients and organic compounds in Deer Creek and South Branch Plum Creek in southwestern Pennsylvania, April 1996 through September 1998
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