National Water-Quality Assessment Program (U.S.)
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National Water-Quality Assessment Program (U.S.)
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The organization National Water-Quality Assessment Program (U.S.) represents an institution, an association, or corporate body that is associated with resources found in University of Missouri-Kansas City Libraries.
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- Changes in nutrient and pesticide concentrations in urban and agricultural areas of the South Platte River Basin, Colorado, Wyoming, and Nebraska, 1994-2000
- Characterization of selected biological, chemical, and physical conditions at fixed sites in the Upper Colorado River Basin, Colorado, 1995-98
- Characterization of selected biological, chemical, and physical conditions at fixed sites in the Upper Colorado River Basin, Colorado, 1995-98
- Chemical and biological indicators of nutrient enrichment in the Yellowstone River Basin, Montana and Wyoming, August 2000 : study design and preliminary results
- Chemical and biological indicators of nutrient enrichment in the Yellowstone River Basin, Montana and Wyoming, August 2000 : study design and preliminary results
- Chemical constituents in sediment in Lake Pontchartrain and in street mud and canal sediment in New Orleans, Louisiana, following Hurricanes Katrina and Rita, 2005
- Chloride in groundwater and surface water in areas underlain by the glacial aquifer system, northern United States
- Classification of irrigated land using satellite imagery, the High Plains aquifer, nominal date 1992
- Collection and analysis of ground-water samples in the Sierra Vista Basin, Arizona, 1996
- Collection, analysis, and age-dating of sediment cores from 56 U.S. lakes and reservoirs sampled by the U.S. Geological Survey, 1992-2001
- Comparison between agricultural and urban ground-water quality in the Mobile River Basin
- Comparison of TOPMODEL streamflow simulations using NEXRAD-based and measured rainfall data, McTier Creek watershed, South Carolina
- Comparison of U.S. Geological Survey and Ohio Environmental Protection Agency fish-collection methods using the index of biotic integrity and modified index of well-being, 1996-97
- Comparison of aquatic macroinvertebrate samples collected using different field methods
- Comparison of macroinvertebrate community structure between two riffle-based sampling protocols in Wyoming, Colorado, and Montana, 2000-2001
- Comparison of multi-habitat aquatic macroinvertebrate sampling methods in streams of the Mississippi Alluvial Plain ecoregion
- Comparison of nitrate, pesticides, and volatile organic compounds in samples from monitoring and public-supply wells, Kirkwood-Cohansey aquifer system, southern New Jersey
- Comparison of temperature, specific conductance, pH, and dissolved oxygen at selected basic fixed sites in south-central Texas, 1996-98
- Comparison of two methods for delineating land use near monitoring wells used for assessing quality of shallow ground water
- Concentration data for anthropogenic organic compounds in ground water, surface water, and finished water of selected community water systems in the United States, 2002-05
- Concentrations and loads of nitrogen and phosphorus in the Yazoo River, northwestern Mississippi, 1996-97
- Concentrations and loads of suspended sediment and nutrients in surface water of the Yakima River basin, Washington, 1999-2000 : with an analysis of trends in concentrations
- Concentrations of dissolved solids and nutrients in water sources and selected streams of the Santa Ana Basin, California, October 1998-September 2001
- Concentrations of selected organochlorine compounds in fish tissue in the Mississippi Embayment Study Unit : Arkansas, Kentucky, Louisiana, Mississippi, Missouri, and Tennessee, 1995-99
- Concentrations of selected trace elements in fish tissue and streambed sediment in the Clark Fork-Pend Oreille and Spokane River basins, Washington, Idaho, and Montana, 1998
- Considerations for incorporating quality control into water quality sampling strategies for the U.S. Geological Survey
- County-level estimates of nitrogen and phosphorus from animal manure for the conterminous United States : 2007 and 2012
- County-level estimates of nitrogen and phosphorus from animal manure for the conterminous United States, 2002
- County-level estimates of nitrogen and phosphorus from commercial fertilizer for the conterminous United States, 1987-2006
- County-level estimates of nutrient inputs to the land surface of the conterminous United States, 1982-2001
- DGMETA (version 1) : dissolved gas modeling and environmental tracer analysis computer program
- Data delivery and mapping over the web : National Water-Quality Assessment data warehouse
- Data on mercury in water, bed sediment, and fish from streams across the United States, 1998-2005
- Data to support statistical modeling of instream nutrient load based on watershed attributes, southeastern United States, 2002
- Derivation of nationally consistent indices representing urban intensity within and across nine metropolitan areas of the conterminous United States
- Design and methods of the California Stream Quality Assessment (CSQA), 2017
- Design and methods of the Midwest Stream Quality Assessment (MSQA : 2013
- Design and methods of the Southeast Stream Quality Assessment (SESQA), 2014
- Design and methods of the U.S. Geological Survey Northeast Stream Quality Assessment (NESQA), 2016
- Design and testing of a process-based groundwater vulnerabilty assessment (P-GWAVA) system for predicting concentrations of agrichemicals in groundwater across the United States
- Design of the national water-quality assessment program : occurrence and distribution of water-quality conditions
- Design tradeoffs for trend assessment in aquatic biological monitoring programs
- Determination of traveltimes in the lower San Joaquin River basin, California, from dye-tracer studies during 1994-1995
- Development and application of a regression equation for estimating the occurrence of atrazine in shallow ground water beneath agricultural areas of the United States
- Development and application of indices to assess the condition of benthic algal communities in U.S. streams and rivers
- Development and application of regression models for estimating nutrient concentrations in streams of the conterminous United States, 1992-2001
- Development and application of watershed regressions for pesticides (WARP) for estimating atrazine concentration distributions in streams
- Development of health-based screening levels for use in state- or local-scale water-quality assessments
- Dioxins and furans in bed sediment and fish tissue of the Willamette Basin, Oregon, 1992-95
- Dissolved solids in basin-fill aquifers and streams in the southwestern United States
- Dissolved solids in basin-fill aquifers and streams in the southwestern United States : executive summary
- Distribution of arsenic in water and streambed sediments, Cook Inlet basin, Alaska
- Distribution of selected hydrogeologic characteristics of the upper glacial and Magothy aquifers, Long Island, New York
- Ecological health in the nation's streams
- Ecological health in the nation's streams, 1993-2005
- Ecological health in the nation's streams, 1993-2005
- Effect of agricultural practices on hydrology and water chemistry in a small irrigated catchment, Yakima River Basin, Washington
- Effects of land use and geohydrology on the quality of shallow ground water in two agricultural areas in the Western Lake Michigan drainages, Wisconsin
- Effects of land use and hydrogeology on the water quality of alluvial aquifers in eastern Iowa and southern Minnesota, 1997
- Effects of land use and travel time on the distribution of nitrate in the Kirkwood-Cohansey aquifer system in southern New Jersey
- Effects of urban development on stream ecosystems along the Front Range of the Rocky Mountains, Colorado and Wyoming
- Effects of urbanization and long-term rainfall on the occurrence of organic compounds and trace elements in reservoir sediment cores, streambed sediment, and fish tissue from the Santa Ana River Basin, California, 1998
- Effects of urbanization on stream ecosystems in the Willamette River basin and surrounding area, Oregon and Washington
- Electron donor concentrations in sediments and sediment properties at the Agricultural Chemicals Team research site near New Providence, Iowa, 2006-07
- Element concentrations in bed sediment of the Yellowstone River Basin, Montana, North Dakota, and Wyoming : a retrospective analysis
- Element concentrations in bed sediment of the Yellowstone River Basin, Montana, North Dakota, and Wyoming : a retrospective analysis
- Environmental factors that influence the location of crop agriculture in the conterminous United States
- Environmental setting and implications for water quality in the western Lake Michigan drainages
- Environmental setting and implications on water quality, Upper Colorado River Basin, Colorado and Utah
- Environmental setting and its relations to water quality in the Kanawha River basin
- Environmental setting and natural factors and human influences affecting water quality in the White River Basin, Indiana
- Environmental setting and the effects of natural and human-related factors on water quality and aquatic biota, Oahu, Hawaii
- Environmental setting and water-quality issues in the lower Tennessee River Basin
- Environmental setting and water-quality issues in the lower Tennessee River basin
- Environmental setting and water-quality issues of the Mobile River basin, Alabama, Georgia, Mississippi, and Tennessee
- Environmental setting of the San Joaquin-Tulare basins, California
- Environmental setting of the Yellowstone River Basin, Montana, North Dakota, and Wyoming
- Environmental setting of the Yellowstone River Basin, Montana, North Dakota, and Wyoming
- Environmental setting of the lower Merced River basin, California
- Environmental setting of the upper Illinois River Basin and implications for water quality
- Environmental setting, water quality, and ecological indicators of surface-water quality in the Mermentau River Basin, Southwestern Louisiana, 1998-2001
- Environmental settings of streams sampled for mercury in New York and South Carolina, 2005-09
- Estimated annual agricultural pesticide use for counties of the conterminous United States, 2008-12
- Estimated withdrawals from stream-valley aquifers and refined estimated withdrawals from selected aquifers in the United States, 2000
- Estimating invertebrate response to changes in total nitrogen, total phosphorus, and specific conductance at sites where invertebrate data are unavailable
- Estimating water fluxes across the sediment-water interface in the lower Merced River, California
- Estimation and analysis of nutrient and suspended-sediment loads at selected sites in the Potomac River Basin, 1993-95
- Estimation of agricultural pesticide use in drainage basins using land cover maps and county pesticide data
- Estimation of annual agricultural pesticide use for counties of the conterminous United States, 1992-2009
- Estimation of nitrogen yields and loads from basins draining to Long Island Sound, 1988-98
- Evaluation of aquatic biota in relation to environmental characteristics measured at the multiple scales in agricultural streams of the Midwest, 1993-2004
- Factors affecting groundwater quality in the Valley and Ridge aquifers, eastern United States, 1993-2002
- Factors affecting the occurrence and distribution of pesticides in the Yakima River basin, Washington, 2000
- Factors affecting water quailty in domestic wells in the upper Floridan Aquifer, southeastern United States, 1998-2005
- Factors affecting water quality in selected carbonate aquifers in the United States,1993-2005
- Fecal-indicator bacteria in surface waters of the Santee River Basin and coastal drainages, North and South Carolina, 1995-98
- Fecal-indicator bacteria in the Yakima River Basin, Washington : an examination of 1999 and 2000 synoptic-sampling data and their relation to historical data
- Fipronil and degradation products in the rice-producing areas of the Mermentau River Basin, Louisiana, February-September 2000
- Fish communities and their relation to environmental factors in the Kanawha River basin, West Virginia, Virginia, and North Carolina, 1997-98
- Fish communities and their relation to physical and chemical characteristics of streams from selected environmental settings in the Lower Susquehanna River Basin, 1993-95
- Flow and geochemistry along shallow ground-water flowpaths in an agricultural area in southeastern Wisconsin
- Flow modification in the nation's streams and rivers
- Geochemical evolution processes and water-quality observations based on results of the National Water-Quality Assessment Program in the San Antonio segment of the Edwards Aquifer, Texas, 1996-2006
- Geographical distribution and potential for adverse biological effects of selected trace elements and organic compounds in streambed sediment in the Connecticut, Housatonic, and Thames River basins, 1992-94
- Geographical distribution and potential for adverse biological effects of selected trace elements and organic compounds in streambed sediment in the Connecticut, Housatonic, and Thames River basins, 1992-94
- Granger Drain subbasin selected for a national water-quality study
- Ground-water age and its water-management implications, Cook Inlet Basin, Alaska
- Ground-water data-collection protocols and procedures for the National Water-Quality Assessment Program : collection and documentation of water-quality samples and related data
- Ground-water quality and its relation to land use on Oahu, Hawaii, 2000-01
- Ground-water quality beneath an urban residential and commercial area, Montgomery, Alabama, 1999-2000 : by James L. Robinson
- Ground-water quality beneath irrigated agriculture in the central High Plains aquifer, 1999-2000
- Ground-water quality beneath irrigated cropland of the northern and southern High Plains aquifer, Nebraska and Texas, 2003-04
- Ground-water quality in alluvial aquifers in the Eastern Iowa Basins, Iowa and Minnesota
- Ground-water quality in quaternary deposits of the central High Plains aquifer, south-central Kansas, 1999
- Ground-water quality in quaternary deposits of the central High Plains aquifer, south-central Kansas, 1999
- Ground-water quality in the Cook Inlet Basin, Alaska, 1999
- Ground-water quality in the Red River of the North Basin, Minnesota and North Dakota, 1991-95
- Ground-water quality in the Santa Ana Watershed, California : overview and data summary
- Ground-water quality in the Sierra Vista subbasin, Arizona, 1996-97
- Ground-water quality in the Upper Santa Cruz Basin, Arizona, 1998
- Ground-water quality in the carbonate-rock aquifer of the Great Basin, Nevada and Utah, 2003
- Ground-water quality in the central High Plains Aquifer, Colorado, Kansas, New Mexico, Oklahoma, and Texas, 1999
- Ground-water quality in the southeastern Sacramento Valley aquifer, California, 1996
- Ground-water quality in the southeastern Sacramento Valley aquifer, California, 1996
- Ground-water quality in the west Salt River Valley, Arizona, 1996-98 : relations to hydrogeology, water use, and land use
- Ground-water quality in three urban areas in the Coastal Plain of the southeastern United States, 1995
- Ground-water quality in three urban areas in the Coastal Plain of the southeastern United States, 1995
- Ground-water quality of the northern High Plains aquifer, 1997, 2002-4
- Groundwater age and susceptibility of South Atlantic and Gulf Coast principal aquifers of the contiguous United States
- Groundwater quality in the Biscayne Aquifer, Florida
- Groundwater quality in the Columbia Plateau and Snake River Plain basin-fill and basaltic-rock aquifers and the Hawaiian volcanic-rock aquifers, Washington, Idaho, and Hawaii, 1993-2005
- Groundwater quality in the Columbia Plateau basaltic-rock aquifers, northwestern United States
- Groundwater quality in the High Plains Aquifer
- Groundwater quality in the Ozark Plateaus aquifer system, Central United States
- Groundwater-quality and select quality-control data from the National Water-Quality Assessment Project, January 2017 through December 2019
- Historical water-quality data for the High Plains Regional Ground-Water Study Area in Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1930-98
- Historical water-quality data for the High Plains Regional Ground-Water Study Area in Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1930-98
- Hydrogeologic interpretations of natural-gamma logs for 31 shallow wells in the Memphis, Tennessee, area
- Hydrogeologic settings and ground-water flow simulations for regional studies of the transport of anthropogenic and natural contaminants to public-supply wells--studies begun in 2001
- Hydrogeology and water quality of a surficial aquifer underlying an urban area, Manchester, Connecticut
- Hydrogeology, chemical characteristics, and transport processes in the zone of contribution of a public-supply well in York, Nebraska
- Hydrogeology, chemical characteristics, and water sources and pathways in the zone of contribution of a public-supply well in San Antonio, Texas
- Hydrogeology, water chemistry, and transport processes in the zone of contribution of a public-supply well in Albuquerque, New Mexico, 2007-9
- Hydrology and water quality of an urban stream reach in the Great Basin : Little Cottonwood Creek near Salt Lake City, Utah, water years 1999-2000
- Hypothetical modeling of redox conditions within a complex ground-water flow field in a glacial setting
- Identification of water-quality trends using sediment cores from Dillon Reservoir, Summit County, Colorado
- Identifying hydrologic processes in agricultural watersheds using precipitation-runoff models
- Improvements to the DRASTIC ground-water vulnerability mapping method
- Influence of local riparian cover and watershed runoff potential on invertebrate communities in agricultural streams in the Minnesota River Basin
- LakeVOC, a computer model to estimate the concentration of volatile organic compounds in lakes and reservoirs
- Land use on the Island of Oahu, Hawaii, 1998
- Limnology of Blue Mesa, Morrow Point, and Crystal Reservoirs, Curecanti National Recreation area, during 1999, and a 25-year retrospective of nutrient conditions in Blue Mesa Reservoir, Colorado
- Lithogeochemical character of the near-surface bedrock in the Connecticut, Housatonic, and Thames River Basins
- Lithogeochemical character of the near-surface bedrock in the Connecticut, Housatonic, and Thames River Basins
- Low-flow water-quality characterization of the Gore Creek watershed, upper Colorado River basin, Colorado, August 1996
- Low-level volatile organic compounds in active public supply wells as ground-water tracers in the Los Angeles physiographic basin, California, 2000
- Low-level volatile organic compounds in active public supply wells as ground-water tracers in the Los Angeles physiographic basin, California, 2000
- Lower Merced River and Mustang Creek watersheds selected for a national water-quality study
- MTBE and other volatile organic compounds : new findings and implications on the quality of source waters used for drinking-water supplies
- MTBE and other volatile organic compounds : new findings and implications on the quality of source waters used for drinking-water supplies
- Machine-learning predictions of redox conditions in groundwater in the Mississippi River Valley alluvial and claiborne aquifers, south-central United States
- Man-made organic compounds in source water of nine community water systems that withdraw from streams, 2002-05
- Maple Creek Watershed selected for a national water-quality study
- Maps and grids of hydrogeologic information created from standardized water-well drillers' records of the glaciated United States
- Maps of estimated nitrate and arsenic concentrations for basin-fill aquifers of the Southwestern United States
- Mercury bioaccumulation studies in the National Water-Quality Assessment Program : biological data from New York and South Carolina, 2005-2009
- Mercury in fish, bed sediment, and water from streams across the United States, 1998-2005
- Metal loading in Soda Butte Creek upstream of Yellowstone National Park, Montana and Wyoming : a retrospective analysis of previous research; and quantification of metal loading, August 1999
- Method for estimating annual atrazine use for counties in the conterminous United States, 1992-2007
- Methods and sources of data used to develop selected water-quality indicators for streams and ground water for the 2007 edition of the State of the Nation's Ecosystems Report with comparisons to the 2002 edition
- Methods for sampling fish communities as part of the National Water-Quality Assessment Program
- Microbial quality of the nation's ground-water resources, 1993-2004
- Morgan Creek Watershed selected for a national water-quality study
- Multi-regional synthesis of temporal trends in biotic assemblages in streams and rivers of the continental United States
- Multilevel hierarchical modeling of benthic macroinvertebrate responses to urbanization in nine metropolitan regions across the conterminous United States
- NHDPlus High Resolution (NHDPlus HR) : a hydrography framework for the nation
- National Water-Quality Assessment of the Lake Erie-Lake St. Clair Basin, Michigan, Indiana, Ohio, Pennsylvania, and New York : environmental and hydrologic setting
- Natural and human factors affecting shallow water quality in surficial aquifers in the Connecticut, Housatonic, and Thames River basins
- Naturally occurring contaminants in the Piedmont and Blue Ridge cystalline-rock aquifers and Piedmont Early Mesozoic basin siliciclastic-rock aquifers, eastern United States, 1994-2008
- Nitrate and pesticides in ground water of the eastern San Joaquin Valley, California : occurrence and trends
- Nitrate in ground water : using a model to simulate the probability of nitrate contamination of shallow ground water in the conterminous United States
- Nitrate in ground water and stream base flow in the Lower Susquehanna River Basin, Pennsylvania and Maryland
- Nitrate in ground water and stream base flow in the Lower Susquehanna River Basin, Pennsylvania and Maryland
- Nitrate in the ground waters of the United States : assessing the risk
- Nitrate loads and concentrations in surface-water base flow and shallow groundwater for selected basins in the United States, water years 1990-2006
- Nitrate, volatile organic compounds, and pesticides in ground water--a summary of selected studies from New Jersey and Long Island, New York
- Nitrogen and pesticide concentrations in an agricultural basin in north-central Connecticut
- Nitrogen and phosphorus concentrations and fluxes of streams in the Mississippi Embayment Study Unit, 1996-98
- Nitrogen and phosphorus in streams of the Great Miami River Basin, Ohio, 1998-2000
- Number and size of black bass reflect water quality in the lower Mississippi River Delta
- Nutrient and chlorophyll relations in selected streams of the New England Coastal Basins in Massachusetts and New Hampshire, June-September 2001
- Nutrient and suspended-sediment transport and trends in the Columbia River and Puget Sound Basins, 1993-2003
- Nutrient concentrations and loads in the northeastern United States : status and trends, 1975-2003
- Nutrient dynamics in five off-stream reservoirs in the lower South Platte River basin, March-September 1995
- Nutrient trends in streams and rivers of the United States, 1993-2003
- Nutrients and pesticides in ground water of the Ozark Plateaus in Arkansas, Kansas, Missouri, and Oklahoma
- Nutrients and suspended sediment in snowmelt runoff from part of the upper Mississippi River basin, Minnesota and Wisconsin, 1997
- Nutrients and suspended solids in surface waters of the upper Illinois River basin in Illinois, Indiana, and Wisconsin, 1978-97
- Nutrients in shallow ground waters beneath relatively undeveloped areas in the conterminous United States
- Nutrients in streams and rivers across the nation -- 1992-2001
- Nutrients in the nation's streams and groundwater, 1992-2004
- Nutrients in the nation's waters : too much of a good thing?
- Nutrients in waters of the Santee River Basin and coastal drainages, North and South Carolina, 1973-93
- Nutrients, suspended sediment, and pesticides in streams in the Red River of the North basin, Minnesota, North Dakota, and South Dakota, 1993-95
- Occurrence and distribution of dissolved pesticides in the San Joaquin River Basin, California
- Occurrence and distribution of dissolved trace elements in the surface waters of the Yakima River Basin, Washington
- Occurrence and distribution of nutrients, suspended sediment, and pesticides in the Mobile River basin, Alabama, Georgia, Mississippi, and Tennessee, 1999-2001
- Occurrence and distribution of organochlorine compounds in biological tissue and bed sediment from streams in the Trinity River basin, Texas, 1992-93
- Occurrence and distribution of organochlorine pesticides, polychlorinated biphenyls, and trace elements in fish tissue in the lower Tennessee River Basin, 1980-98
- Occurrence and distribution of pesticide compounds in surface water of the Santa Ana Basin, California, 1998-2001
- Occurrence and distribution of volatile organic compounds and pesticides in ground water in relation to hydrogeologic characteristics and land use in the Santa Ana Basin, Southern California
- Occurrence and seasonal variability of volatile organic compounds in seven New Jersey streams
- Occurrence and transport of agricultural chemicals in Leary Weber Ditch Basin, Hancock County, Indiana, 2003-04
- Occurrence and transport of cadmium, lead, and zinc in the Spokane River basin, Idaho and Washington, water years 1999-2001
- Occurrence of agricultural chemicals in shallow ground water and the unsaturated zone, northeast Nebraska glacial till, 2002-04
- Occurrence of nitrate and pesticides in ground water beneath three agricultural land-use settings in the eastern San Joaquin Valley, California, 1993-1995
- Occurrence of the gasoline additive MTBE in shallow ground water in urban and agricultural areas
- Occurrence of uranium and 222radon in glacial and bedrock aquifers in the northern United States, 1993-2003
- Occurrence of volatile organic compounds in selected urban streams in the United States, 1995-2003
- Occurrence, distribution, and loads of selected pesticides in streams in the Lake Erie-Lake St. Clair Basin, 1996-98
- Occurrence, distribution, and loads of selected pesticides in streams in the Lake Erie-Lake St. Clair Basin, 1996-98
- Optimal hydrograph separation using a recusive digital filter constrained by chemical mass balance, with application to selected Chesapeake Bay watersheds
- Organic compounds and trace elements in fish tissue and bed sediment from streams in the Yellowstone River basin, Montana and Wyoming, 1998
- Organic compounds and trace elements in fish tissue and bed sediment from streams in the Yellowstone River basin, Montana and Wyoming, 1998
- Organic compounds and trace elements in freshwater streambed sediment and fish from the Puget Sound Basin
- Organic compounds assessed in Chattahoochee River water used for public supply near Atlanta, Georgia, 2004-05
- Organic compounds in Clackamas River Water used for public supply near Portland, Oregon, 2003-05
- Organic compounds in Potomac River water used for public supply near Washington, D.C., 2003-05
- Organic compounds in Running Gutter Brook water used for public supply near Hatfield, Massachusetts, 2003-05
- Organic compounds in Truckee River water used for public supply near Reno, Nevada, 2002-05
- Organic compounds in White River water used for public supply near Indianapolis, Indiana, 2002-05
- Organochlorine compounds and trace elements in fish tissue and streambed sediment in the Mobile River Basin, Alabama, Mississippi, and Georgia, 1998
- Organochlorine compounds in streambed sediment and in biological tissue from streams and their relations to land use, central Arizona
- Organochlorine compounds in streambed sediment and in biological tissue from streams and their relations to land use, central Arizona
- Organochlorine pesticides and PCBs in southern Florida fishes, then and now
- PCBs in tissue of fish from the Spokane River, Washington, 1999
- Periphyton communities in streams of the Ozarks plateaus and their relations to selected environmental factors
- Pesticide compounds in streamwater in the Delaware River basin, December 1998-August 2001
- Pesticide occurrence and distribution in the lower Clackamas River basin, Oregon, 2000-2005
- Pesticide toxicity index for freshwater aquatic organisms
- Pesticides and bacteria in an urban stream -- Gills Creek, Columbia, South Carolina
- Pesticides and nitrates in surficial sand and gravel aquifers as related to modeled contamination susceptibility in part of the Upper Mississippi River Basin
- Pesticides in air and rainwater in the midcontinental United States, 1995 : methods and data
- Pesticides in public supply wells of Washington state
- Pesticides in public supply wells of the Central Columbia Plateau
- Pesticides in selected small streams in the Puget Sound Basin, 1987-1995
- Pesticides in storm runoff from agricultural and urban areas in the Tuolumne River Basin in the vicinity of Modesto, California
- Pesticides in streams in the Tar-Pamlico drainage basin, North Carolina, 1992-94
- Pesticides in surface water from three agricultural basins in south-central Georgia, 1993-95
- Pesticides in surface water measured at select sites in the Sacramento River basin, California, 1996-1998
- Pesticides in surface water of the Yakima River basin, Washington, 1999-2000 : their occurrence and an assessment of factors affecting concentrations and loads
- Pesticides in surface waters of the upper Colorado River basin, Colorado, 1996-98
- Pesticides in the nation's streams and ground water, 1992-2001 : the quality of our nation's waters
- Point-source nutrient loads to streams of the conterminous United States, 2012
- Predicting ground-water vulnerability to nitrate in the Puget Sound Basin
- Preliminary estimates of annual agricultural pesticide use for counties of the conterminous United States, 2013
- Prioritization of constituents for national- and regional-scale ambient monitoring of water and sediment in the United States
- Priority-pollutant trace elements in streambed sediments of the Cook Inlet basin, Alaska, 1998-2000
- Procedures for collecting and processing streambed sediment and pore water for analysis of mercury as part of the National Water-Quality Assessment Program
- Quality and sources of ground water used for public supply in Salt Lake Valley, Salt Lake County, Utah, 2001
- Quality and sources of shallow ground water in areas of recent residential development in Salt Lake Valley, Salt Lake County, Utah
- Quality of data from the U.S. Geological Survey National Water Quality Network for water years 2013-17
- Quality of major ion and total dissolved solids data from groundwater sampled by the National Water-Quality Assessment Program, 1992-2010
- Quality of nutrient data from streams and ground water sampled during water years 1992-2001
- Quality of pesticide data for groundwater analyzed for the National Water-Quality Assessment Project, 2013-18
- Quality of shallow ground water in alluvial aquifers of the Willamette Basin, Oregon, 1993-95
- Quality of shallow ground water in areas of recent residential and commercial development, Wichita, Kansas, 2000
- Quality of shallow ground water in recently developed residential and commercial areas, Memphis vicinity, Tennessee, 1997
- Quality of shallow ground water in three areas of unsewered low-density development in Wyoming and Montana, 2001
- Quality of shallow groundwater and drinking water in the Mississippi Embayment-Texas Coastal Uplands Aquifer System and the Mississippi River Valley Alluvial Aquifer, south-central United States, 1994-2004
- Quality of source water from public-supply wells in the United States, 1993-2007
- Quality of water from crystalline rock aquifers in New England, New Jersey, and New York, 1995-2007
- Quality of water from domestic wells in principal aquifers of the United States, 1991-2004
- Quality of water from domestic wells in principal aquifers of the United States, 1991-2004 : overview of major findings
- Quality of water from public-supply wells in the United States, 1993-2007 : overview of major findings
- Quality of water from shallow wells in the rice-growing area in southwestern Louisiana, 1999 through 2001
- Quality of water in domestic wells in the Chicot and Chicot equivalent aquifer systems, southern Louisiana and southwestern Mississippi, 2000-2001
- Quality of water in the Trinity and Edwards aquifers, south-central Texas, 1996-98
- Quality-control results for ground-water and surface-water data, Sacramento River basin, California, National-Water Quality Assessment, 1996-1998
- Redox conditions in selected principal aquifers of the United States
- Regression model for explaining and predicting concentrations of dieldrin in whole fish from United States streams
- Relation of arsenic, iron, and manganese in ground water to aquifer type, bedrock lithogeochemistry, and land use in the New England coastal basins
- Relation of arsenic, iron, and manganese in ground water to aquifer type, bedrock lithogeochemistry, and land use in the New England coastal basins
- Relation of nitrogen and phosphorus in ground water to land use in four subunits of the Potomac River Basin
- Relation of shallow water quality in the central Oklahoma aquifer to geology, soils, and land use
- Relation of urbanization to stream habitat and geomorphic characteristics in nine metropolitan areas of the United States
- 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
- Relations of changes in wastewater-treatment practices to changes in stream-water quality during 1978-88 in the Chicago area, Illinois, and implications for regional and national water-quality assessments
- Relations that affect the probability and prediction of nitrate concentration in private wells in the glacial aquifer system in the United States
- Response of fish communities to cropland density and natural environmental setting in the Eastern Highland Rim Ecoregion of the lower Tennessee River basin, Alabama and Tennessee, 1999
- Response of stream chemistry during base flow to gradients of urbanization in selected locations across the conterminous United States, 2002-04
- Results of quality-control sampling of water, bed sediment, and tissue in the Western Lake Michigan Drainages study unit of the National Water-Quality Assessment Program
- SWB version 2.0--a Soil-Water-Balance code for estimating net infiltration and other water-budget components
- Sampling design for assessing water quality of the Red River of the North Basin, Minnesota, North Dakota, and South Dakota, 1993-1995
- Seasonal and spatial variability of nutrients and pesticides in streams of the Willamette Basin, Oregon, 1993-95
- Seasonal and spatial variability of pesticides in streams of the upper Tennessee River basin, 1996-99
- SeawaveQ--an R package providing a model and utilities for analyzing trends in chemical concentrations in streams with a seasonal wave (seawave) and adjustment for streamflow (Q) and other ancillary variables, version 2.0.0
- Selected aquatic biological investigations in the Great Salt Lake basins, 1875-1998 : National Water-Quality Assessment Program
- Selected historic agricultural data important to environmental quality in the United States
- Selected physical, chemical, and biological data for 30 urbanizing streams in the North Carolina Piedmont ecoregion, 2002-2003
- Selected trace-element and synthetic-organic compound data for streambed sediment from the Clark Fork-Pend Oreille and Spokane River basins, Montana, Idaho, and Washington, 1998
- Shallow ground-water quality adjacent to burley tobacco fields in northeastern Tennessee and southwestern Virginia, Spring 1997
- Shallow ground-water quality adjacent to burley tobacco fields in northeastern Tennessee and southwestern Virginia, spring 1997
- Shallow ground-water quality beneath cropland in the Red River of the North Basin, Minnesota and North Dakota, 1993-95
- Shallow ground-water quality beneath rice areas in the Sacramento Valley, California, 1997
- Shallow ground-water quality in agricultural areas of northern Alabama and Middle Tennessee, 2000-2001
- Shallow ground-water quality in selected agricultural areas of south-central Georgia, 1994
- Shallow ground-water quality in the Boston, Massachusetts metropolitan area
- Shallow ground-water quality in the Boston, Massachusetts metropolitan area
- Shallow ground-water quality in the coastal plain of Columbia, South Carolina, 1996 : National Water-Quality Assessment Program
- Simulation of groundwater flow in the regional aquifer system on Long Island, New York, for pumping and recharge conditions in 2005-15
- Simulations of ground-water flow and particle pathline analysis in the zone of contribution of a public-supply well in Modesto, eastern San Joaquin Valley, California
- Simulations of ground-water flow and residence time near Woodbury, Connecticut
- Simulations of groundwater flow and particle tracking analysis in the area contributing recharge to a public-supply well near Tampa, Florida, 2002-05
- Simulations of groundwater flow and particle-tracking analysis in the zone of contribution to a public-supply well in San Antonio, Texas
- Simulations of groundwater flow, transport, and age in Albuquerque, New Mexico, for a Study of Transport of Anthropogenic and Natural Contaminants (TANC) to public-supply wells
- Software for analysis of chemical mixtures : composition, occurrence, distribution, and possible toxicity
- Sources and loads of nutrients in the South Platte River, Colorado and Nebraska, 1994-95
- Sources and preparation of data for assessing trends in concentrations of pesticides in streams of the United States
- Sources and preparation of data for assessing trends in concentrations of pesticides in streams of the United States, 1992-2006
- Sources, instream transport, and trends of nitrogen, phosphorus, and sediment in the lower Tennessee River basin, 1980-96
- Southwest principal aquifers regional ground-water quality assessment
- Spatial and temporal variations in streamflow, dissolved solids, nutrients, and suspended sediment in the Rio Grande Valley study unit, Colorado, New Mexico, and Texas, 1993-95
- Stable isotopes and volatile organic compounds along seven ground-water flow paths in divergent and convergent flow systems, Southern California, 2000
- Strategies for managing the effects of urban development on streams
- Stream ecosystems change with urban development
- Stream habitat characteristics at selected sites in the Georgia-Florida coastal plain
- Stream habitat characteristics at selected sites in the Georgia-Florida coastal plain
- Streamflow and nutrient data for the Yazoo River below Steele Bayou near Long Lake, Mississippi, 1996-2000
- Streamflow characterization and summary of water-quality data collection during the Mississippi River flood, April through July 2011
- Study design and analytical results used to evaluate carry-over contamination by volatile organic compounds in surface- and ground-water sampling procedures
- Sugar Creek Watershed selected for a national water-quality study
- Summary of biological investigations relating to water quality in the western Lake Michigan drainages, Wisconsin and Michigan
- Summary of data for quality assessment materials analyzed from January 1994 through November 1998 using the NAWQA Program bed-sediment analytical protocol
- Summary of information on aquatic biota and their habitats in the Willamette Basin, Oregon, through 1995
- Summary of surface-water-quality data collected for the Northern Rockies Intermontane Basins National Water-Quality Assessment Program in the Clark Fork-Pend Oreille and Spokane River basins, Montana, Idaho, and Washington, water years 1999-2001
- Surface-water quality of the Skokomish, Nooksack, and Green-Duwamish rivers and Thornton Creek, Puget Sound basin, Washington, 1995-98
- Surface-water-quality assessment of the lower Kansas River Basin, Kansas and Nebraska : selected metals, arsenic, and phosphorus in streambed sediments of first-and second-order streams, 1987
- Surface-water-quality assessment of the upper Illinois River Basin in Illinois, Indiana, and Wisconsin : results of investigations through April 1992
- Surface-water-quality assessment of the upper Illinois River basin in Illinois, Indiana, and Wisconsin : spatial distribution of geochemicals in the fine fraction of streambed sediment, 1987
- Surface-water/ground-water interaction of the Spokane River and the Spokane Valley/Rathdrum Prairie aquifer, Idaho and Washington
- TOPMODEL simulations of streamflow and depth to water table in Fishing Brook Watershed, New York, 2007-09
- The California stream quality assessment
- The Southeast Stream Quality Assessment
- The association of arsenic with redox conditions, depth, and ground-water age in the glacial aquifer system of the northern United States
- The effects of urbanization on the biological, physical, and chemical characteristics of coastal New England streams
- The occurrence of trace elements in bed sediment collected from areas of varying land use and potential effects on stream macroinvertebrates in the conterminous western United States, Alaska, and Hawaii, 1992-2000
- The quality of our nation's waters : factors affecting public-supply-well vulnerability to contamination : understanding observed water quality and anticipating future water quality
- The quality of our nation's waters : nutrients and pesticides
- The south Florida environment : a region under stress
- The south Florida environment : a region under stress
- The use of process models to inform and improve statistical models of nitrate occurrence, Great Miami River basin, southwestern Ohio
- Tillage practices in the conterminous United States, 1989-2004--datasets aggregated by watershed
- Trace elements and organic chemicals in stream-bottom sediments and fish tissues, Red River of the North Basin, Minnesota, North Dakota, and South Dakota, 1992-95
- Trace elements and organic compounds in bed sediment from selected streams in southern Louisiana, 1998
- Trace elements and organic compounds in sediment and fish tissue from the Great Salt Lakes Basins, Utah, Idaho, and Wyoming, 1998-99
- Trace elements and organic compounds in streambed sediment and fish tissue of coastal New England streams, 1998-99
- Trace elements and synthetic organic compounds in streambed sediment and fish tissue in the Great and Little Miami River Basins, Ohio and Indiana, 1990-98
- Trace elements in streambed sediment and fish liver at selected sites in the Upper Colorado River Basin, Colorado 1995-96
- Trace-metal concentrations in sediment and water and health of aquatic macroinvertebrate communities of streams near Park City, Summit County, Utah
- Traveltime characteristics of Gore Creek and Black Gore Creek, upper Colorado River basin, Colorado
- Trends in nutrient and sediment concentrations and loads In major river basins of the south-central United States, 1993-2004
- Trends in nutrient concentrations, loads, and yields in streams in the Sacramento, San Joaquin, and Santa Ana Basins, California, 1975-2004
- Trends in streamflow and nutrient and suspended-sediment concentrations and loads in the upper Mississippi, Ohio, Red, and Great Lakes river basins, 1975-2004
- Trends in suspended-sediment loads and concentrations in the Mississippi River Basin, 1950-2009
- Tritium deposition in precipitation in the continental United States,1953-2012
- UFINCH--a method for stimulating unit and daily flows in networks of channels described by NHDPlus using continuous flow data at USGS streamgages
- Understanding the influence of nutrients on stream ecosystems in agricultural landscapes
- Uranium and radon in ground water in the lower Illinois River basin
- User's manual for the National Water-Quality Assessment Program Invertebrate Data Analysis System (IDAS) software, version 3
- Using regional watershed data to assess water-quality impairment in the Pacific drainages of the United States
- Variability in lotic communities in three contrasting stream environments in the Santa Ana River Basin, California, 1999-2001
- Variability in stream chemistry in relation to urban development and biological condition in seven metropolitan areas of the United States, 1999-2004
- Variability of nutrients in streams in part of the Upper Mississippi River Basin, Minnesota and Wisconsin
- Variability of pesticide detections and concentrations in field replicate water samples collected for the National Water-Quality Assessment Program, 1992-97
- Vertical gradients in water chemistry and age in the northern High Plains Aquifer, Nebraska, 2003
- Vertical gradients in water chemistry and age in the southern High Plains aquifer, Texas, 2002
- Vertical gradients in water chemistry in the central High Plains aquifer, southwestern Kansas and Oklahoma panhandle, 1999
- Vertical gradients in water chemistry in the central High Plains aquifer, southwestern Kansas and Oklahoma panhandle, 1999
- Viability of male gametes in Common Carp (Cyprinus carpio) along the lower Colorado River from the Cibola National Wildlife Refuge (NWR), Havasu NWR, and Lake Mohave of Lake Mead National Recreation area
- Volatile organic compound matrix spike recoveries for ground- and surface-water samples, 1997-2001
- Volatile organic compounds in Lake Tahoe, Nevada and California, July-September 1997
- Water Quality in the Apalachicola-Chattahoochee-Flint River Basin, Georgia, Alabama, and Florida, 1992-95
- Water movement through thick unsaturated zones overlying the central High Plains aquifer, southwestern Kansas, 2000-2001
- Water quality assessment of the Upper Mississippi River Basin, Minnesota and Wisconsin-polychlorinated biphenyls in common carp and walleye fillets, 1975-95
- Water quality assessment of the Upper Mississippi River Basin, Minnesota and Wisconsin-polychlorinated biphenyls in common carp and walleye fillets, 1975-95
- Water quality at basic fixed sites in the Upper Colorado River Basin National Water-Quality Assessment study unit, October 1995-September 1998
- Water quality at fixed sites in the Great Salt Lake basins, Utah, Idaho, and Wyoming, water years 1999-2000
- Water quality in South Central Texas, Texas, 1996-98
- Water quality in basin-fill aquifers of the southwestern United States : Arizona, California, Colorado, Nevada, New Mexico, and Utah, 1993-2009
- Water quality in the Central Columbia plateau, Washington, and Idaho, 1992-95
- Water quality in the Central Columbia plateau, Washington, and Idaho, 1992-95
- Water quality in the Connecticut, Housatonic, and Thames River basins, Connecticut, Massachusetts, New Hampshire, New York, and Vermont, 1992-95
- Water quality in the Cook Inlet basin, Alaska, 1998-2001
- Water quality in the Denver Basin aquifer system, Colorado, 2003-05
- Water quality in the Georgia-Florida coastal plain, Georgia and Florida, 1992-96
- Water quality in the High Plains Aquifer, Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1999-2004
- Water quality in the Hudson River Basin, New York and adjacent states, 1992-95
- Water quality in the Kanawha-New River Basin : West Virginia, Virginia, and North Carolina, 1996-98
- Water quality in the Lake Erie-Lake Saint Clair drainages : Michigan, Ohio, Indiana, New York, and Pennsylvania, 1996-98
- Water quality in the Las Vegas Valley area and the Carson and Truckee River basins, Nevada and California, 1992-96
- Water quality in the Long Island-New Jersey coastal drainages, New York and New Jersey, 1996-98
- Water quality in the Mississippi Embayment : Texas coastal uplands aquifer system and Mississippi River Valley alluvial aquifer, south-central United States, 1994-2008
- Water quality in the Mississippi Embayment, Mississippi, Louisiana, Arkansas, Missouri, Tennessee, and Kentucky, 1995-98
- Water quality in the Northern Atlantic coastal plain surficial aquifer system, Delaware, Maryland, New Jersey, New York, North Carolina, and Virginia, 1988-2009
- Water quality in the South Platte River basin, Colorado, Nebraska, and Wyoming, 1992-95
- Water quality in the Upper Mississippi River Basin, Minnesota, Wisconsin, South Dakota, Iowa, and North Dakota, 1995-98
- Water quality in the Upper Snake River Basin, Idaho and Wyoming, 1992-95
- Water quality in the Upper Tennessee River Basin, Tennessee, North Carolina, Virginia, and Georgia, 1994-98
- Water quality in the White River Basin, Indiana, 1992-96
- Water quality in the Willamette Basin, Oregon, 1991-95
- Water quality in the central Arizona basins, 1995-98
- Water quality in the central Nebraska basins, Nebraska, 1992-95
- Water quality in the glacial aquifer system, northern United States, 1993-2009
- Water quality in the lower Illinois River Basin, Illinois, 1995-98
- Water quality in the principal aquifers of the Piedmont, Blue Ridge, and Valley and Ridge regions, eastern United States, 1993-2009
- Water quality in the southern Everglades and Big Cypress Swamp in the vicinity of the Tamiami Trail, 1996-97
- Water quality in the upper Floridan aquifer and overlying surficial aquifers, Southeastern United States, 1993-2010
- Water quality in the western Lake Michigan drainages, Wisconsin and Michigan, 1992-95
- Water quality of groundwater used for public supply in principal aquifers of the western United States
- Water quality of selected effluent-dependent stream reaches in southern Arizona as indicated by concentrations of periphytic chlorophyll a and aquatic-invertebrate communities
- Water quality of selected rivers in the New England Coastal Basins in Maine, Massachusetts, New Hampshire, and Rhode Island, 1998-2000
- Water quality of springs in the Valley and Ridge Physiographic Province in the upper Tennessee River basin, 1997
- Water quality of the Albemarle-Pamlico drainage basin, North Carolina, and Virginia, 1992-95
- Water quality of the Flint River Basin, Alabama and Tennessee, 1999-2000
- Water quality, physical habitat, and fish-community composition in streams in the Twin Cities metropolitan area, Minnesota, 1997-98
- Water temperature of streams in the Cook Inlet basin, Alaska, and implications of climate change
- Water-quality assessment of part of the Upper Mississippi River Basin, Minnesota and Wisconsin : environmental setting and study design
- Water-quality assessment of part of the upper Mississippi River Basin, Minnesota and Wisconsin : ground-water quality in the Prairie du Chien-Jordan Aquifer, 1996