41. Trends in concentration, loads, and sources of trace metals and nutrients in the Spokane River Watershed, northern Idaho, water years 1990-2018 Author/Creator: Zinsser, Lauren M., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2020 Resource Type: Book Access & Availability: Loading
42. Wildfire smoke : a guide for public health officials Publication/Creation: Research Triangle Park, NC : United States Environmental Protection Agency, Office of Air Quality Planning and Standards, Health and Environmental Impacts Division, 2019 Resource Type: Book Edition: Revised 2019. Access & Availability: Loading
43. Trace metal and nutrient loads from groundwater seepage into the South Fork Coeur d'Alene River near Smelterville, northern Idaho, 2017 Author/Creator: Zinsser, Lauren M., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2019 Resource Type: Book Access & Availability: Loading
44. Evaluation of streambed-sediment metals concentrations in the Spring River Basin, Cherokee County Superfund site, Kansas, 2017 Author/Creator: Klager, Brian J., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2019 Resource Type: Book Access & Availability: Loading
45. Assessment of the presence of sewage in the Mill River under low-flow conditions, Springfield, Massachusetts, 2010-11 Author/Creator: Massey, Andrew J., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2019 Resource Type: Book Access & Availability: Loading
46. Hydrologic site assessment for passive treatment of groundwater nitrogen with permeable reactive barriers, Cape Cod, Massachusetts Author/Creator: Barbaro, Jeffrey R. 1960- (Jeffrey Ralph), author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2019 Resource Type: Book Access & Availability: Loading
47. GNEB advice letter : GNEB that summarizes the socio-economic context of the U.S. border region with Mexico Author/Creator: Ganster, Paul, author Publication/Creation: [Washington] : [United States Environmental Protection Agency], 2018 Resource Type: Book Access & Availability: Loading
48. Water-quality response to changes in phosphorus loading of the Winnebago pool lakes, Wisconsin, with special emphasis on the effects of internal loading in a chain of lakes Author/Creator: Robertson, Dale M., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2018 Resource Type: Book Access & Availability: Loading
49. Water pressure and ground vibrations induced by water guns near Brandon Road Lock and Dam and Lemont, Illinois Author/Creator: Adams, Ryan F., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2018 Resource Type: Book Access & Availability: Loading
50. Simulation and gaming : proceedings of the 12th Annual Symposium, National Gaming Council, and the 4th Annual Conference, International Simulation and Gaming Association, held at the National Bureau of Standards, Gaithersburg, Md., September 17-19, 1973 Author/Creator: National Gaming Council Publication/Creation: Gaithersburg, MD : U.S. Dept. of Commerce, National Institute of Standards and Technology, 1974 Resource Type: Book Access & Availability: Loading