{"title":"Source and Movement of Ground Water in the Western Part of the Mojave Desert, Southern California, USA","authors":"J. Izbicki","doi":"10.3133/WRI034313","DOIUrl":"https://doi.org/10.3133/WRI034313","url":null,"abstract":"...............................................................................................................................................................","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74826248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Streamflow of the St. Croix River has been monitored on a long-term basis by the U.S. Geological Survey (USGS) at streamflow-gaging stations on the St. Croix River at Wisconsin State Highway 35 near Danbury, Wisconsin and below the dam at St. Croix Falls, Wisconsin. Trend analysis indicates that annual streamflow peaks, annual mean flows, and annual 7-day low flows have remained relatively stable at the Danbury (upstream) station from 1914 to 2001 but have increased by 0.45 to 0.55 percent per year at the St. Croix Falls (downstream) station from 1902 to 2001. Water-quality sampling conducted by the USGS at two associated water-quality monitoring sites from 1964 to 2001 have included analysis for nutrients, suspended sediments, metals, bacteria, and pesticides. The water-quality data at the two sites had considerable temporal variation and was often limited in extent by the data-collection needs of previous projects. The absence of consistent long-term water-quality data made detection of statistically significant trends in the water-quality data difficult. Nutrient, suspended-sediment, and major ion concentrations and field parameters were generally higher and more variable at the St. Croix Falls site than at the Danbury site. However, disparate sampling periods and strategies could cause possible biases in the comparison of water quality between sites. Introduction The U.S. Geological Survey (USGS) has performed long-term continuous streamflow measurements of the St. Croix River at two streamflow-gaging stations: at Wisconsin State Highway 35 near Danbury, Wisconsin and below the dam at St. Croix Falls, Wisconsin (fig. 1). Water-quality measurements of a variety of constituents such as nutrients, suspended sediments, metals, bacteria, and pesticides have been collected at two water-quality monitoring sites associated with these streamflow-gaging stations. This report will refer to both the streamflow-gaging stations and associated water-quality monitoring sites as sites. This study, which was initiated in 2001, was a cooperative effort between the USGS, National Park Service (NPS), and the Joint Water Quality Commission of Danbury and St. Croix Chippewa Indians of Wisconsin to analyze the long-term USGS flow data for temporal trends and provide summaries and analysis of the USGS water-quality data collected at these sites. This report presents trends in flow and differences in water quality among sites, studies, and over time. Streamflow data from 1902 to 2001 and water-quality data from 1964 to 2001 are included in this study. Differences between the long-term data sets can be used to determine the part of the St. Croix River Basin where change has occurred. Trends at the Danbury site reflect changes in the upper basin (1,580 square miles), trends in the difference between the St. Croix Falls and Danbury sites reflect changes that occurred in the part of the drainage basin between those two sites (4,660 square miles), and trends at the St. Cro
{"title":"Analysis of streamflow and water-quality data at two long-term monitoring sites on the St. Croix River, Wisconsin and Minnesota","authors":"Bernard N. Lenz","doi":"10.3133/WRI034334","DOIUrl":"https://doi.org/10.3133/WRI034334","url":null,"abstract":"Streamflow of the St. Croix River has been monitored on a long-term basis by the U.S. Geological Survey (USGS) at streamflow-gaging stations on the St. Croix River at Wisconsin State Highway 35 near Danbury, Wisconsin and below the dam at St. Croix Falls, Wisconsin. Trend analysis indicates that annual streamflow peaks, annual mean flows, and annual 7-day low flows have remained relatively stable at the Danbury (upstream) station from 1914 to 2001 but have increased by 0.45 to 0.55 percent per year at the St. Croix Falls (downstream) station from 1902 to 2001. Water-quality sampling conducted by the USGS at two associated water-quality monitoring sites from 1964 to 2001 have included analysis for nutrients, suspended sediments, metals, bacteria, and pesticides. The water-quality data at the two sites had considerable temporal variation and was often limited in extent by the data-collection needs of previous projects. The absence of consistent long-term water-quality data made detection of statistically significant trends in the water-quality data difficult. Nutrient, suspended-sediment, and major ion concentrations and field parameters were generally higher and more variable at the St. Croix Falls site than at the Danbury site. However, disparate sampling periods and strategies could cause possible biases in the comparison of water quality between sites. Introduction The U.S. Geological Survey (USGS) has performed long-term continuous streamflow measurements of the St. Croix River at two streamflow-gaging stations: at Wisconsin State Highway 35 near Danbury, Wisconsin and below the dam at St. Croix Falls, Wisconsin (fig. 1). Water-quality measurements of a variety of constituents such as nutrients, suspended sediments, metals, bacteria, and pesticides have been collected at two water-quality monitoring sites associated with these streamflow-gaging stations. This report will refer to both the streamflow-gaging stations and associated water-quality monitoring sites as sites. This study, which was initiated in 2001, was a cooperative effort between the USGS, National Park Service (NPS), and the Joint Water Quality Commission of Danbury and St. Croix Chippewa Indians of Wisconsin to analyze the long-term USGS flow data for temporal trends and provide summaries and analysis of the USGS water-quality data collected at these sites. This report presents trends in flow and differences in water quality among sites, studies, and over time. Streamflow data from 1902 to 2001 and water-quality data from 1964 to 2001 are included in this study. Differences between the long-term data sets can be used to determine the part of the St. Croix River Basin where change has occurred. Trends at the Danbury site reflect changes in the upper basin (1,580 square miles), trends in the difference between the St. Croix Falls and Danbury sites reflect changes that occurred in the part of the drainage basin between those two sites (4,660 square miles), and trends at the St. Cro","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"208 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73774993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Status of ground-water levels and storage volume in the Equus Beds aquifer near Wichita, Kansas, January 2000-January 2003","authors":"C. Hansen, W. Aucott","doi":"10.3133/WRI034298","DOIUrl":"https://doi.org/10.3133/WRI034298","url":null,"abstract":"","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84967588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of water-column pH on sediment-phosphorus release rates in Upper Klamath Lake, Oregon, 2001","authors":"L. H. Fisher, T. Wood","doi":"10.3133/WRI034271","DOIUrl":"https://doi.org/10.3133/WRI034271","url":null,"abstract":"","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79720487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Chemical and Biological Quality of Surface Water at the U.S. Army Atterbury Reserve Forces Training Area near Edinburgh, Indiana, September 2000 through July 2001","authors":"M. Risch","doi":"10.3133/WRI034149","DOIUrl":"https://doi.org/10.3133/WRI034149","url":null,"abstract":"","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"14 1","pages":"1-87"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82393336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract. A critical issue surrounding biomonitoring in large rivers (fifth- through seventh-order) is the minimum sampling-reach distance required to collect an adequate number of fish to represent the fish assemblage within a reach. Excessive sampling effort (excessive reach length) is costly in terms of work hours, reduces the number of sites that can be visited, can compromise field-crew safety, can be logistically unfeasible, and can cause unnecessary injury to captured fish. On the other hand, inadequate sampling effort can produce consider-able variability in multiple samples collected at a site and may underrepresent the species or river condition present. During the summer of 2002, the U.S. Geological Survey, in cooperation with the Idaho Department of Environmental Quality, determined the minimum sampling effort required to characterize fish assemblages at 17 large-river sites in southern Idaho. The study was done as part of the U.S. Environmental Protection Agency’s Environmental Monitoring and Assessment Program. Electrofishing methods and multiple gear types were used to collect sample populations of fish in river reach lengths representing 40 and 100 times the wetted channel width. Minimum sampling effort was assessed by comparing the relation between reach length and the number of species collected, total individuals collected, and final Index of Biotic Integrity (IBI) scores. developed specifically for large Idaho rivers, received scores of less than 50, indicating poor biotic integrity.
{"title":"Assessment of fish assemblages and minimum sampling effort required to determine botic integrity of large rivers in southern Idaho, 2002","authors":"T. R. Maret, D. S. Ott","doi":"10.3133/WRI034274","DOIUrl":"https://doi.org/10.3133/WRI034274","url":null,"abstract":"Abstract. A critical issue surrounding biomonitoring in large rivers (fifth- through seventh-order) is the minimum sampling-reach distance required to collect an adequate number of fish to represent the fish assemblage within a reach. Excessive sampling effort (excessive reach length) is costly in terms of work hours, reduces the number of sites that can be visited, can compromise field-crew safety, can be logistically unfeasible, and can cause unnecessary injury to captured fish. On the other hand, inadequate sampling effort can produce consider-able variability in multiple samples collected at a site and may underrepresent the species or river condition present. During the summer of 2002, the U.S. Geological Survey, in cooperation with the Idaho Department of Environmental Quality, determined the minimum sampling effort required to characterize fish assemblages at 17 large-river sites in southern Idaho. The study was done as part of the U.S. Environmental Protection Agency’s Environmental Monitoring and Assessment Program. Electrofishing methods and multiple gear types were used to collect sample populations of fish in river reach lengths representing 40 and 100 times the wetted channel width. Minimum sampling effort was assessed by comparing the relation between reach length and the number of species collected, total individuals collected, and final Index of Biotic Integrity (IBI) scores. developed specifically for large Idaho rivers, received scores of less than 50, indicating poor biotic integrity.","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"811 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82642185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hydrogeologic framework of the North Fork and surrounding areas, Long Island, New York","authors":"C. Schubert, R. Bova, P. Misut","doi":"10.3133/WRI024284","DOIUrl":"https://doi.org/10.3133/WRI024284","url":null,"abstract":".................................................................................................................................................................................","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78790569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Concentrations of dissolved solids and nutrients in water sources and selected streams of the Santa Ana Basin, California, Octoger 1998 - September 2001","authors":"R. Kent, K. Belitz","doi":"10.3133/WRI034326","DOIUrl":"https://doi.org/10.3133/WRI034326","url":null,"abstract":"...............................................................................................................................................................","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86670883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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