Analysis of phosphorus trends and evaluation of sampling designs in the Quinebaug River Basin, Connecticut

Trench, Elaine C. Todd

doi:10.3133/sir20045094

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…The QWTREND model also is useful for evaluating trends at a group of sites where sampling frequencies have been highly variable from year to year. Other studies in Connecticut (Trench and Vecchia, 2002;Trench, 2004), North Dakota (Vecchia, 2000(Vecchia, , 2003, and South Dakota (Sando and Neitzert, 2003) have applied the QWTREND model to examine trends in water quality.…”

Section: Trends From 19 To 2003mentioning

confidence: 99%

Nutrient and Suspended-Sediment Trends in the Missouri River Basin, 1993-2003

Sprague¹,

Clark²,

Rus³

et al. 2007

Scientific Investigations Report

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The U.S. Geological Survey (USGS) is committed to providing the Nation with credible scientific information that helps to enhance and protect the overall quality of life and that facilitates effective management of water, biological, energy, and mineral resources (http://www.usgs.gov/). Information on the Nation's water resources is critical to ensuring long-term availability of water that is safe for drinking and recreation and is suitable for industry, irrigation, and fish and wildlife. Population growth and increasing demands for water make the availability of that water, now measured in terms of quantity and quality, even more essential to the long-term sustainability of our communities and ecosystems. The USGS implemented the National Water-Quality Assessment (NAWQA) Program in 1991 to support national, regional, State, and local information needs and decisions related to water-quality management and policy (http://water.usgs.gov/nawqa). The NAWQA Program is designed to answer: What is the condition of our Nation's streams and ground water? How are conditions changing over time? How do natural features and human activities affect the quality of streams and ground water, and where are those effects most pronounced? By combining information on water chemistry, physical characteristics, stream habitat, and aquatic life, the NAWQA Program aims to provide science-based insights for current and emerging water issues and priorities. From 1991-2001, the NAWQA Program completed interdisciplinary assessments and established a baseline understanding of water-quality conditions in 51 of the Nation's river basins and aquifers, referred to as Study Units (http://water.usgs.gov/nawqa/ studyu.html). In the second decade of the Program (2001-2012), a major focus is on regional assessments of water-quality conditions and trends. These regional assessments are based on major river basins and principal aquifers, which encompass larger regions of the country than the Study Units. Regional assessments extend the findings in the Study Units by filling critical gaps in characterizing the quality of surface water and ground water, and by determining status and trends at sites that have been consistently monitored for more than a decade. In addition, the regional assessments continue to build an understanding of how natural features and human activities affect water quality. Many of the regional assessments employ modeling and other scientific tools, developed on the basis of data collected at individual sites, to help extend knowledge of water quality to unmonitored, yet comparable areas within the regions. The models thereby enhance the value of our existing data and our understanding of the hydrologic system. In addition, the models are useful in evaluating various resource-management scenarios and in predicting how our actions, such as reducing or managing nonpoint and point sources of contamination, land conversion, and altering flow and (or) pumping regimes, are likely to affect water conditions within a region. Other activitie...

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Section: Trends From 19 To 2003mentioning

confidence: 99%

Nutrient and Suspended-Sediment Trends in the Missouri River Basin, 1993-2003

Sprague¹,

Clark²,

Rus³

et al. 2007

Scientific Investigations Report

View full text Add to dashboard Cite

show abstract

“…The report resulting from this study (Trench, 2004) presents an analysis of trends in total phosphorus concentrations, and an evaluation of sampling schedules for monitoring future trends in phosphorus, for two stations on the Quinebaug River for selected periods of record during 1971-2001. Although long-term decreases in total phosphorus concentrations have taken place in the Quinebaug River, recent concentration increases were detected at both stations.…”

Section: Management Of Nutrient-related Water-quality Problems Requirmentioning

confidence: 99%

The Thames science plan: suggested hydrologic investigations to support nutrient-related water-quality improvements in the Thames River basin, Connecticut

Trench¹,

C²

2005

Open-File Report

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Analysis of phosphorus trends and evaluation of sampling designs in the Quinebaug River Basin, Connecticut

Cited by 2 publications

References 13 publications

Nutrient and Suspended-Sediment Trends in the Missouri River Basin, 1993-2003

Nutrient and Suspended-Sediment Trends in the Missouri River Basin, 1993-2003

The Thames science plan: suggested hydrologic investigations to support nutrient-related water-quality improvements in the Thames River basin, Connecticut

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