1. Nitrate concentrations, 1936-99, and pesticide concentrations, 1990-99, in the unconfined aquifer in the San Luis Valley, Colorado Author/Creator: Stogner, Robert W., author Publication/Creation: Albuquerque, New Mexico : U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
2. Nitrate source indicators in ground water of the Scimitar Subdivision, Peters Creek area, Anchorage, Alaska Author/Creator: Wang, Bronwen Publication/Creation: Denver, CO : U.S. Geological Survey, Branch of Information Services [distributor]. Resource Type: Book Access & Availability: Loading
3. Numerical simulation of ground-water flow and assessment of the effects of artificial recharge in the Rialto-Colton basin, San Bernardino County, California Author/Creator: Woolfenden, Linda R. Publication/Creation: Sacramento, Calif. : U.S. Dept. of the Interior, U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
4. Numerical simulation of ground-water flow and land subsidence at Edwards Air Force Base, Antelope Valley, California Author/Creator: Nishikawa, Tracy, author Publication/Creation: Sacramento, California : U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
5. Numerical simulation of streamflow distribution, sediment transport, and sediment deposition along Long Branch Creek in Northeast Missouri Author/Creator: Heimann, David C. Publication/Creation: Rolla, Mo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
6. Nutrient and suspended-sediment concentrations and loads and benthic-invertebrate data for tributaries to the St. Croix River, Wisconsin and Minnesota, 1997-99 Publication/Creation: Middleton, Wis. : U.S. Dept. of the Interior, U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
7. Nutrient sources and loads in the Connecticut, Housatonic, and Thames River basins Author/Creator: Trench, Elaine C. Todd, author Publication/Creation: Northborough, Massachusetts : U.S. Deptartment of the Interior, U.S. Geological Survey, 2000 Resource Type: Book Access & Availability: Loading
8. Nutrients and organic compounds in Deer Creek and South Branch Plum Creek in southwestern Pennsylvania, April 1996 through September 1998 Author/Creator: Williams, Donald R. (Hydrologist), author Publication/Creation: New Cumberland, Pennsylvania : U.S. Department of the Interior, U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
9. Nutrients and suspended sediment in snowmelt runoff from part of the upper Mississippi River basin, Minnesota and Wisconsin, 1997 Author/Creator: Fallon, James D. Publication/Creation: Mounds View, Minn. : U.S. Dept. of the Interior, U.S. Geological Survey, 2000 Resource Type: Book Access & Availability: Loading
10. Nutrients and suspended solids in surface waters of the upper Illinois River basin in Illinois, Indiana, and Wisconsin, 1978-97 Author/Creator: Sullivan, D. J. (Daniel J.) Publication/Creation: Middleton, Wis. : U.S. Dept. of the Interior, U.S. Geological Survey, 2000 Resource Type: Book Access & Availability: Loading