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2. Particulate, colloidal, and dissolved-phase associations of plutonium, americium, and uranium in water samples from well 1587 and surface-water sites SW-51 and SW-53 at the Rocky Flats Plant, Colorado
3. Partnership of environmental education and research : a compilation of student research, 1999-2008
4. Paso del Norte : la competencia por las aguas subterráneas transfronterizas
5. Percentage change in saturated thickness of High Plains aquifer, west-central Kansas, 1950 to average ...
6. Percentage change in saturated thickness of the High Plains aquifer, west-central Kansas, 1950 to average 1985-87
7. Percentage change in saturated thickness of the High Plains aquifer, west-central Kansas, 1950 to average 1988-90
8. Percentile distributions of median nitrite plus nitrate as nitrogen, total nitrogen, and total phosphorus concentrations in Oklahoma streams, 1973-2001
9. Performance monitoring of MNA remedies for VOCs in ground water
10. Permafrost and ground water in Alaska,
11. Permafrost and ground water in Alaska
12. Permeability of soils in Mississippi
13. Permeable groundwater pathways and tritium migration patterns from the HANDLEY underground nuclear test, Pahute Mesa, Nevada
14. Permeable reactive barrier : sustainable groundwater remediation
15. Permeable reactive barrier : sustainable groundwater remediation
16. Pesticide transformation products : fate and significance in the environment
17. Pesticides and groundwater : hearing before the Subcommittee on Toxic Substances and Environmental Oversight of the Committee on Environment and Public Works, United States Senate, Ninety-ninth Congress, second session, September 9, 1986
18. Pesticides and groundwater : hearing before the Subcommittee on Toxic Substances and Environmental Oversight of the Committee on Environment and Public Works, United States Senate, Ninety-ninth Congress, second session, September 9, 1986
19. Pesticides and groundwater quality : issues and problems in four states
20. Pesticides and volatile organic compounds in ground and surface water of the Palouse subunit, Washington and Idaho
21. Pesticides and volatile organic compounds in surface and ground water of the Palouse subunit, Central Columbia Plateau, Washington and Idaho, 1993-95
22. Pesticides in ground water : Albany County, Wyoming, 2003-04
23. Pesticides in ground water : background document
24. Pesticides in ground water : Campbell County, Wyoming, 2004-2005
25. Pesticides in ground water : Carbon County, Wyoming, 2004-2005
26. Pesticides in ground water : Converse County, Wyoming, 2003-04
27. Pesticides in ground water : current understanding of distribution and major influences
28. Pesticides in ground water : Hot Springs County, Wyoming, 2003-04
29. Pesticides in ground water : Natrona County, Wyoming, 2001-02
30. Pesticides in ground water : Sublette County, Wyoming, 2004-2005
31. Pesticides in ground water : Sweetwater County, Wyoming, 2001-02
32. Pesticides in ground water : Sweetwater County, Wyoming, 2001-02
33. Pesticides in ground water : Teton County, Wyoming, 2001-02
34. Pesticides in ground water in the Western Lake Michigan Drainages, Wisconsin and Michigan, 1983-1995
35. Pesticides in ground water, Niobrara and Weston Counties, Wyoming, 2005-2006
36. Pesticides in ground water of central and western Maryland
37. Pesticides in ground water of the Maryland Coastal Plain
38. Pesticides in ground water of water of Wyoming, 1995-2006
39. Pesticides in ground water, Uinta County, Wyoming, 2002-2003
40. Pesticides in groundwater : hearing before the Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce, House of Representatives, One Hundred Second Congress, first session, May 8, 1991
41. Pesticides in groundwater : hearing before the Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce, House of Representatives, One Hundred Second Congress, first session, May 8, 1991
42. Pesticides in groundwater in the Anacostia River and Rock Creek watersheds in Washington, D.C., 2005 and 2008
43. Pesticides in public supply wells of the Central Columbia Plateau
44. Pesticides in public supply wells of Washington state
45. Pesticides in soils and ground water in selected irrigated agricultural areas near Havre, Ronan, and Huntley, Montana
46. Pesticides in streams in central Nebraska
47. Pesticides in surface water : monitoring, modeling, risk assessment, and management
48. Pesticides in surface water, bed sediment, and ground water adjacent to commercial cranberry bogs, Lac du Flambeau Reservation, Vilas County, Wisconsin
49. Pesticides in urban environments : fate and significance
50. Pesticides in Wyoming's groundwater, 2008-2010
51. Pharmaceuticals and personal care products in the environment : scientific and regulatory issues
52. Phenolic contamination in the sand-and-gravel aquifer from a surface impoundment of wood treatment wastes, Pensacola, Florida
53. Phosphorus in a ground-water contaminant plume discharging to Ashumet Pond, Cape Cod, Massachusetts, 1999
54. The physical and economic foundation of natural resources
55. Physical and hydrologic properties of water-bearing deposits in subsiding areas in central California
56. Physical and hydrologic properties of water-bearing deposits in subsiding areas in central California
57. Physical characteristics and quality of water from selected springs and wells in the Lincoln Point-Bird Island area, Utah Lake, Utah
58. Physical extent, recharge areas, relative potential for recharge and contamination, and quality of water in the principal aquifers, western Kane County, Utah
59. Physical subdivision and description of the water-bearing sediments of the Santa Clara Valley, California
60. Physiography and superficial geology of the copper-nickel study region, northeastern Minnesota
61. Pilot project to optimize superfund financed pump and treat systems
62. Pilot study of natural attenuation of arsenic in well water discharged to the Little River above Lake Thunderbird, Norman, Oklahoma, 2012
63. Pilot-scale testing of dairy manure treatments to reduce nutrient transport from land application, northwest Ohio, 2015-17
64. Plan of study for the northern Midwest regional aquifer-system analysis
65. Plan of study for the regional aquifer-system analysis of the Appalachian Valley and Ridge, Piedmont, and Blue Ridge physiographic provinces of the eastern and southeastern United States, with a description of study-area geology and hydrogeology
66. Plan of study to define hydrogeologic characteristics of the Madera Limestone in the east mountain area of central New Mexico
67. Plan of study to define hydrogeologic characteristics of the Madera Limestone in the east mountain area of central New Mexico
68. Plan to evaluate the effects of hydrogeologic conditions and human activities on water quality in the coastal plain of New York and New Jersey
69. Planet E. Episode 10, Arsenic : the creeping killer
70. Planning report for the Edwards-Trinity regional aquifer-system analysis in central Texas, southeast Oklahoma, and southwest Arkansas
71. Planning report for the Gulf Coast Regional Aquifer-System Analysis in the Gulf of Mexico coastal plain, United States
72. Plans and practices for groundwater protection at the Los Alamos National Laboratory : final report
73. Plutonium chemistry
74. Poison and the Pentagon
75. The poisoned dream, May 19, 1980
76. The politics of southwestern water
77. Pollutants in porous media : the unsaturated zone between soil surface and groundwater
78. Polluted groundwater : a review of the significant literature
79. Pond-aquifer interaction at South Pond of Lake Cochituate, Natick, Massachusetts
80. Possible effects of groundwater pumping on surface water in the Verde Valley, Arizona
81. Possible extent and depth of salt contamination in ground water using geophysical techniques, Red River Aluminum site, Stamps, Arkansas, April 2003
82. Possible sources of nitrate in ground water at swine licensed-managed feeding operations in Oklahoma, 2001
83. Possible sources of nitrate in ground water at swine licensed-managed feeding operations in Oklahoma, 2001
84. Postflood occurrence of selected agricultural chemicals and volatile organic compounds in near-surface unconsolidated aquifers in the upper Mississippi River Basin, 1993
85. Postflood occurrence of selected agricultural chemicals and volatile organic compounds in near-surface unconsolidated aquifers in the upper Mississippi River Basin, 1993
86. Potential effects of deepening the St. Johns River navigation channel on saltwater intrusion in the surficial aquifer system, Jacksonville, Florida
87. Potential effects of individual sewage disposal system density on ground-water quality in the fractured-rock aquifer in the vicinity of Bailey, Park County, Colorado, 2001-2002
88. Potential effects of roadside dry wells on groundwater quality on the island of Hawai'i-- assessment using numerical groundwater models
89. Potential effects of surface coal mining on the hydrology of the Bloomfield coal tract, Dawson County, eastern Montana
90. Potential effects of surface coal mining on the hydrology of the Little Bear Creek area, Moorhead coal field, southeastern Montana
91. Potential effects of the Hawaii Geothermal Project on ground-water resources on the island of Hawaii
92. Potential for ground-water contamination from movement of wastewater through the unsaturated zone, upper Mojave River Basin, California
93. Potential for ground-water development in central Volusia County, Florida
94. Potential for leakage among principal aquifers in the Memphis area, Tennessee
95. Potential for updip movement of salinewater in the Edwards Aquifer, San Antonio, Texas
96. Potential hydrologic effects of ground-water withdrawals from the Dakota Aquifer, southwestern Kansas
97. Potential impact on public health from ground water contamination : hearing before the Committee on Labor and Human Resources, United States Senate, Ninety-ninth Congress, second session ... February 17, 1986, Fort Lauderdale, Fl.
98. Potential impact on public health from ground water contamination : hearing before the Committee on Labor and Human Resources, United States Senate, Ninety-ninth Congress, second session on the potential impact on public health from ground water contamination, February 17, 1986, Fort Lauderdale, Fl.
99. Potential interaction of groundwater and surface water including autonomous underwater vehicle reconnaissance at Nolin River Lake, Kentucky, 2016
100. Potential well yields from unconsolidated deposits in the lower Hudson and Delaware River basins, New York
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