Field guide for collecting and processing stream-water samples for the National Water-Quality Assessment Program

Shelton, L.R.

doi:10.3133/ofr94455

Cited by 396 publications

(408 citation statements)

References 15 publications

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“…Quality-control samples were collected throughout the study following NAWQA protocols (Shelton, 1994). Field blanks were collected using water certified to contain undetectable concentrations of constituents to be analyzed.…”

Section: Quality-control Methods and Resultsmentioning

confidence: 99%

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Spatial and seasonal variability of nutrients, pesticides, bacteria, and suspended sediment in the Santee River basin and coastal drainages, North and South Carolina, 1995-97

Maluk¹

2000

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Section: Quality-control Methods and Resultsmentioning

confidence: 99%

“…Surfacewater samples were collected and processed according to the guidelines specified by Shelton (1994 ). Multiple depth-integrated samples were collected across the width of each stream.…”

Section: Methodsmentioning

confidence: 99%

Spatial and seasonal variability of nutrients, pesticides, bacteria, and suspended sediment in the Santee River basin and coastal drainages, North and South Carolina, 1995-97

Maluk¹

2000

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“…Sampling methods for field-measured constituents and properties, major ions, nutrients, dissolved and suspended organic carbon, and suspended sediment conformed to guidelines specified for the NAWQA Program as documented by Shelton (1994). The methodology called for the use of Teflon sampling bottles and splitting equipment to minimize errors from contamination or other sampling artifacts.…”

Section: Sampling Methodsmentioning

confidence: 99%

Water-quality assessment of the Sacramento River Basin, California — Water quality of fixed sites, 1996-1998

Domagalski¹,

Dileanis²

2000

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FOREWORDThe mission of the U.S. Geological Survey (USGS) is to assess the quantity and quality of the earth resources of the Nation and to provide information that will assist resource managers and policymakers at Federal, State, and local levels in making sound decisions. Assessment of water-quality conditions and trends is an important part of this overall mission.One of the greatest challenges faced by waterresources scientists is acquiring reliable information that will guide the use and protection of the Nation's water resources. That challenge is being addressed by Federal, State, interstate, and local water-resource agencies and by many academic institutions. These organizations are collecting water-quality data for a host of purposes that include: compliance with permits and water-supply standards; development of remediation plans for specific contamination problems; operational decisions on industrial, wastewater, or watersupply facilities; and research on factors that affect water quality. An additional need for water-quality information is to provide a basis on which regionaland national-level policy decisions can be based. Wise decisions must be based on sound information. As a society we need to know whether certain types of water-quality problems are isolated or ubiquitous, whether there are significant differences in conditions among regions, whether the conditions are changing over time, and why these conditions change from place to place and over time. The information can be used to help determine the efficacy of existing waterquality policies and to help analysts determine the need for and likely consequences of new policies.To address these needs, the U.S. Congress appropriated funds in 1986 for the USGS to begin a pilot program in seven project areas to develop and refine the National Water-Quality Assessment (NAWQA) Program. In 1991, the USGS began full implementation of the program. The NAWQA Program builds upon an existing base of water-quality studies of the USGS, as well as those of other Federal, State, and local agencies. The objectives of the NAWQA Program are to:Describe current water-quality conditions for a large part of the Nation's freshwater streams, rivers, and aquifers. Describe how water quality is changing over time.Improve understanding of the primary natural and human factors that affect water-quality conditions. This information will help support the development and evaluation of management, regulatory, and monitoring decisions by other Federal, State, and local agencies to protect, use, and enhance water resources.The goals of the NAWQA Program are being achieved through ongoing and proposed investigations of 59 of the Nation's most important river basins and aquifer systems, which are referred to as study units. These study units are distributed throughout the Nation and cover a diversity of hydrogeologic settings. More than two-thirds of the Nation's freshwater use occurs within the 59 study units and more than twothirds of the people served by public water-supply syst...

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“…All samples were filtered using precombusted glass-fiber filters with a nominal 0.7-µ m pore diameter to remove suspended particulate matter. Complete collection and processing methods are described by Shelton (1994).…”

Section: Methods For Sample Collection and Analysismentioning

confidence: 99%

“…All samples were depth-and width-integrated using standard USGS methods (Shelton, 1994). All equipment used for collecting and processing water samples was constructed of Teflon, glass, aluminum, or stainless steel and was cleaned and rinsed with residuegrade methanol.…”

Section: Methods For Sample Collection and Analysismentioning

confidence: 99%

Pesticides in streams of the United States : initial results from the National Water-Quality Assessment Program

Larson¹,

Gilliom²,

Capel³

1999

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FOREWORDThe mission of the U.S. Geological Survey (USGS) is to assess the quantity and quality of the earth resources of the Nation and to provide information that will assist resource managers and policymakers at Federal, State, and local levels in making sound decisions. Assessment of water-quality conditions and trends is an important part of this overall mission.One of the greatest challenges faced by waterresources scientists is acquiring reliable information that will guide the use and protection of the Nation's water resources. That challenge is being addressed by Federal, State, interstate, and local water-resource agencies and by many academic institutions. These organizations are collecting water-quality data for a host of purposes that include: compliance with permits and water-supply standards; development of remediation plans for specific contamination problems; operational decisions on industrial, wastewater, or watersupply facilities; and research on factors that affect water quality. An additional need for water-quality information is to provide a basis on which regionaland national-level policy decisions can be based. Wise decisions must be based on sound information. As a society we need to know whether certain types of water-quality problems are isolated or ubiquitous, whether there are significant differences in conditions among regions, whether the conditions are changing over time, and why these conditions change from place to place and over time. The information can be used to help determine the efficacy of existing waterquality policies and to help analysts determine the need for and likely consequences of new policies.To address these needs, the U.S. Congress appropriated funds in 1986 for the USGS to begin a pilot program in seven project areas to develop and refine the National Water-Quality Assessment (NAWQA) Program. In 1991, the USGS began full implementation of the program. The NAWQA Program builds upon an existing base of water-quality studies of the USGS, as well as those of other Federal, State, and local agencies. The objectives of the NAWQA Program are to:• Describe current water-quality conditions for a large part of the Nation's freshwater streams, rivers, and aquifers. • Describe how water quality is changing over time.• Improve understanding of the primary natural and human factors that affect water-quality conditions. This information will help support the development and evaluation of management, regulatory, and monitoring decisions by other Federal, State, and local agencies to protect, use, and enhance water resources.The goals of the NAWQA Program are being achieved through ongoing and proposed investigations of 60 of the Nation's most important river basins and aquifer systems, which are referred to as study units. These study units are distributed throughout the Nation and cover a diversity of hydrogeologic settings. More than two-thirds of the Nation's freshwater use occurs within the 59 study units and more than twothirds of the people served by public water-suppl...

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Field guide for collecting and processing stream-water samples for the National Water-Quality Assessment Program

Cited by 396 publications

References 15 publications

Spatial and seasonal variability of nutrients, pesticides, bacteria, and suspended sediment in the Santee River basin and coastal drainages, North and South Carolina, 1995-97

Spatial and seasonal variability of nutrients, pesticides, bacteria, and suspended sediment in the Santee River basin and coastal drainages, North and South Carolina, 1995-97

Water-quality assessment of the Sacramento River Basin, California — Water quality of fixed sites, 1996-1998

Pesticides in streams of the United States : initial results from the National Water-Quality Assessment Program

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