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Baseline groundwater-quality data from a densely developed coastal neighborhood, Falmouth, Massachusetts (2016 - 2021) (ver. 4.0, February 2022) This data release provides a comprehensive dataset of sampling-site characteristics and baseline groundwater-quality data collected from a network of multilevel sampling wells installed in a densely developed coastal neighborhood undergoing a conversion from onsite septic systems to municipal sewering. Groundwater samples were collected during multiple events from a total of 227 well screens at 15 locations using a peristaltic pump between June 2016 and September 2021. Samples were collected and preserved following methods documented in the U.S. Geological Survey National Field Manual (variously dated) and Savoie and others (2012). This dataset provides well construction information, groundwater levels, water-quality... Categories: Data, Data Release - Revised; Tags: Falmouth, Mara Vista, Massachusetts, USGS Science Data Catalog (SDC), groundwater, All tags... groundwater quality, nutrient content, water-quality data, Fewer tags Regression tree datasets used to identify trophic states in Tennessee reservoirs This dataset was developed in partnership with the Tennessee Department of Environmental Conservation to determine the susceptibility of selected Tennessee reservoirs to eutrophication and potential harmful algal blooms. A R script, based on recursive partitioning and the model-based boosting routine, was used to generate regression trees that grouped Tennessee reservoirs into five endpoints along individual low-to-high gradients of Secchi depth and chlorophyll a concentrations (Green, et al, 2021; Heal and Green, 2021). Input data for these reservoirs were obtained from SPAtially Referenced Regression On Watershed (SPARROW) attributes models that estimate total phosphorus and total nitrogen loads in Tennessee water... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geomorphology, Lakes/Reservoirs, SPARROW, USGS Science Data Catalog (SDC), Water Quality, All tags... Water Resources, agal blooms, eutrophication, nitrogen eutrophication, nutrient content, nutrient loading, Fewer tags Data and Regression Model for Suspended Sediment for Iroquois River near Foresman, Indiana, March 20, 2015 to July 19, 2018 The primary data set consists of continuous water-quality data (temperature, specific conductance, pH, dissolved oxygen, turbidity, nitrate plus nitrite, and streamflow) from in-situ equipment, and discrete water-quality samples (total nitrogen, total phosphorus, suspended sediment concentration, and suspended sediment sieve diameter) collected during site visits at the USGS streamgage Iroquois River near Foresman, Indiana, April 7, 2015 to July 19, 2018. These continuous and discrete measurements were used to develop a regression model which may be used to compute concentrations and loads of suspended sediment. The secondary data set consists of daily streamflow and daily turbidity values collected continuously... Categories: Data; Tags: Indiana, Midwest, USGS Science Data Catalog (SDC), Water Quality, environment, All tags... nutrient content, nutrient pollution, sediment transport, statistical modeling, surface water quality, water quality, Fewer tags Nutrient and pesticide data collected from the USGS National Water Quality Network and previous networks, 1963-2018 The National Water Quality Network (NWQN) for Rivers and Streams includes 110 surface-water river and stream sites monitored by the U.S. Geological Survey (USGS) National Water Quality Program, National Water-Quality Assessment (NAWQA) Project. The NWQN includes 20 large river coastal sites, 41 large river inland sites, 30 wadeable stream reference sites, 10 wadeable stream urban sites, and 9 wadeable stream agricultural sites. In addition to the 110 NWQN sites, 3 large inland river monitoring sites from the USGS Cooperative Water Program are also included in this annual water-quality reporting Web site to be consistent with previous USGS studies of nutrient transport in the Mississippi-Atchafalaya River Basin.... Categories: Data; Tags: USGS Science Data Catalog (SDC), United States, Water Quality, nutrient content, pesticide and herbicide contamination, All tags... river systems, sediment transport, streamflow, water quality, Fewer tags Discharge, nutrient, and suspended sediment data for selected streams in the Lake Tahoe watershed A time series of nutrient and mean daily discharge data were used to create models of daily concentration and loads for selected streams of the Lake Tahoe watershed. A total of 15 sites have records ranging from as early as 1972 to 2017. Nutrients in the data set include nitrate, ammonium, Kjeldahl Nitrogen, orthophosphate, and total phosphorus. Total suspended sediment concentrations are also included. Discharge data are included as mean daily values in cubic meters per second. The data were used to produce daily and annual models of concentrations and loads and associated daily and annual loads of these constituents. Trends in these constituents were also calculated. The U.S. Geological Survey model, Weighted... Tags: Lake Tahoe, California and Nevada, USA, USGS Science Data Catalog (SDC), Water Resources, nutrient content, stream water, All tags... water quality, Fewer tags Point-Source Nutrient Loads to Streams of the Conterminous United States, 2012 The U.S. Geological Survey (USGS) developed a spatial water-quality model called SPAtially Referenced Regressions On Watershed attributes (SPARROW) to estimate the major sources and environmental factors that affect the long-term supply, transport, and fate of contaminants in the Nation’s streams. The SPARROW model relates in-stream water-quality data to spatially referenced characteristics of watersheds, including contaminant sources and factors influencing terrestrial and aquatic transport. Based on SPARROW modeling, one of the main nutrient sources to streams is point-source facilities such as municipal waste-water treatment plants that discharge directly to streams. This dataset was developed to assist with... Categories: Data; Tags: Alabama, Arizona, Arkansas, California, Colorado, All tags... Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, National Hydrography Dataset, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, SPAtially Referenced Regressions On Watershed attributes (SPARROW), South Carolina, South Dakota, Tennessee, Texas, USGS Science Data Catalog (SDC), Utah, Vermont, Virginia, Washington, Water Quality, West Virginia, Wisconsin, Wyoming, aquaculture, contamination and pollution, environment, improvement of scientific data usability, nutrient content, utilitiesCommunication, waste treatment and disposal, wastewater discharge, Fewer tags Nutrient and pesticide data collected from the USGS National Water Quality Network and previous networks, 1963-2016 The National Water Quality Network (NWQN) for Rivers and Streams includes 113 surface-water river and stream sites monitored by the U.S. Geological Survey (USGS) National Water Quality Program, National Water-Quality Assessment (NAWQA) Project. The NWQN includes 19 large river coastal sites, 44 large river inland sites, 30 wadeable stream reference sites, 10 wadeable stream urban sites, and 10 wadeable stream agricultural sites. In addition to the 113 NWQN sites, 3 large inland river monitoring sites from the USGS Cooperative Water Program are also included in this annual water-quality reporting Web site to be consistent with previous USGS studies of nutrient transport in the Mississippi-Atchafalaya River Basin.... Categories: Data; Types: Citation; Tags: National Water Quality Program, USGS Science Data Catalog (SDC), United States, Water Quality, nutrient content, All tags... pesticide and herbicide contamination, river systems, sediment transport, streamflow, water quality, Fewer tags Precipitation and Precipitation Chemistry in Robinson Forest, Breathitt County, Kentucky (1971-2018) Robinson Forest, in eastern Kentucky, is a research forest owned and operated by the University of Kentucky (UK) since the 1920s. The UK Department of Forestry and Natural Resources began collecting precipitation and precipitation chemistry data in the forest starting with one weather station at the Robinson Forest Camp in 1971, and followed by several additional stations in the mid-1990s. This digital dataset includes information about the weather stations where these data were collected, and how these data were processed. These data include precipitation and precipitation chemistry (chloride, nitrates, sulfates, ammonium, pH, alkalinity, calcium, magnesium, potassium, sodium, conductivity, total organic carbon,... Categories: Data; Tags: Appalachia, Breathitt County, Cumberland, Kentucky, Knott County, All tags... North Fork Kentucky, Perry County, Robinson Forest, nutrient content, precipitation measurement, Fewer tags Nutrient and pesticide data collected from the USGS National Water Quality Network and previous networks, 1963-2017 The National Water Quality Network (NWQN) for Rivers and Streams includes 111 surface-water river and stream sites monitored by the U.S. Geological Survey (USGS) National Water Quality Program, National Water-Quality Assessment (NAWQA) Project. The NWQN includes 20 large river coastal sites, 41 large river inland sites, 30 wadeable stream reference sites, 10 wadeable stream urban sites, and 10 wadeable stream agricultural sites. In addition to the 111 NWQN sites, 3 large inland river monitoring sites from the USGS Cooperative Water Program are also included in this annual water-quality reporting Web site to be consistent with previous USGS studies of nutrient transport in the Mississippi-Atchafalaya River Basin.... Categories: Data; Tags: Aquatic Biology, Ecology, National Water Quality Program, USGS Science Data Catalog (SDC), United States, All tags... Water Quality, Water Resources, nutrient content, pesticide and herbicide contamination, river systems, sediment transport, streamflow, water quality, Fewer tags Data and Regression Models for Total Nitrogen and Total Phosphorus for the Iroquois River near Foresman, Indiana, March 20, 2015 to July 19, 2018 The primary data set consists of continuous water-quality data (temperature, specific conductance, pH, dissolved oxygen, turbidity, nitrate plus nitrite, and streamflow) from in-situ equipment, and discrete water-quality samples (total nitrogen, total phosphorus, suspended sediment concentration, and suspended sediment sieve diameter) collected during site visits at the USGS streamgage Iroquois River near Foresman, Indiana, April 7, 2015 to July 19, 2018. These continuous and discrete measurements were used to develop regression models which may be used to compute concentrations and loads of total nitrogen and total phosphorus. The secondary data set consists of daily streamflow, daily nitrate, daily turbidity and... Categories: Data; Tags: Indiana, Midwest, USGS Science Data Catalog (SDC), Water Quality, environment, All tags... nutrient content, nutrient pollution, sediment transport, statistical modeling, surface water quality, water quality, Fewer tags Data and Regression Models for Suspended Sediment, Total Nitrogen, and Total Phosphorus for School Branch at CR750N at Brownsburg, Indiana, June 23, 2015 to February 6, 2019 The primary data sets consist of continuous water-quality data (temperature, specific conductance, pH, dissolved oxygen, turbidity, nitrate plus nitrite, and streamflow) from in-situ equipment, and discrete water-quality samples (total nitrogen, total phosphorus, suspended sediment concentration, and suspended sediment sieve diameter) collected during site visits at the USGS streamgage School Branch at CR750N at Brownsburg, Indiana, November 17, 2015 to February 6, 2019. The continuous and discrete measurements were used to develop regression models which may be used to compute concentrations and loads of suspended sediment, total nitrogen, and total phosphorus. The secondary data sets consist of daily streamflow,... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Indiana, Midwest, Sedimentology, USGS Science Data Catalog (SDC), Water Quality, All tags... environment, nutrient content, nutrient pollution, sediment transport, statistical modeling, surface water quality, water quality, Fewer tags Surrogate regression model data for estimating nitrate concentrations at six springs in Gooding County, south-central Idaho Endangered Banbury Springs limpet and threatened Bliss Rapids snail populations in springs along the Snake River in southern Gooding County, south-central Idaho, are declining. To protect these species, the U.S. Fish and Wildlife Service (USFWS) needs to understand what affects the species' habitat such as aquatic vegetation, associated with elevated nitrate concentrations in the springs. In cooperation with the USFWS, the U.S. Geological Survey developed surrogate regression models to estimate nitrate concentration using specific conductance, day of the year, and streamflow as potential explanatory variables. These surrogate models provide a cheaper alternative than measuring nitrate concentrations directly, through... Tags: Aquatic Biology, Box Canyon Spring, Briggs Spring, Gooding, Hatchery Springs, All tags... Hydrology, Idaho, Mid-Snake, Niagara Springs, Snake River, Snake River Plain basaltic-rock aquifers, USGS Science Data Catalog (SDC), Water Quality, Water Resources, environmental surrogates, field monitoring stations, groundwater, hydrology, nutrient content, regression analysis, surface water, water quality, Fewer tags Nutrient and pesticide data collected from the USGS National Water Quality Network and previous networks, 1980-2015 The National Water Quality Network (NWQN) for Rivers and Streams includes 113 surface-water river and stream sites monitored by the U.S. Geological Survey (USGS) National Water Quality Program, National Water-Quality Assessment (NAWQA) Project. The NWQN includes 19 large river coastal sites, 44 large river inland sites, 30 wadeable stream reference sites, 10 wadeable stream urban sites, and 10 wadeable stream agricultural sites. In addition to the 113 NWQN sites, 3 large inland river monitoring sites from the USGS Cooperative Water Program are also included in this annual water-quality reporting Web site to be consistent with previous USGS studies of nutrient transport in the Mississippi-Atchafalaya River Basin.... Categories: Data; Types: Citation; Tags: National Water Quality Program, USGS Science Data Catalog (SDC), United States, nutrient content, pesticide and herbicide contamination, All tags... river systems, sediment transport, streamflow, water quality, Fewer tags Methane and nitrous oxide temporal and spatial concentrations in the Iroquois River and Sugar Creek in Northwestern Indiana and Northeastern Illinois, 1999-2003 (ver. 2.0, November 2020) A comprehensive study of water quality in two streams was conducted in the Midwestern United States in 1999 to 2003. The Iroquois River and Sugar Creek, located in northwestern Indiana and northeastern Illinois have been heavily impacted by agricultural land use and contain relatively high concentrations of inorganic nitrogen, primarily as nitrate. As part of that study, samples were collected and analyzed for dissolved methane and nitrous oxide concentrations to determine greenhouse gas (GHG) concentrations in the streams and the relation of GHG concentrations to concentrations of other inorganic nitrogen species in the water. These data are the results of that study. The data include GHG and nutrient samples collected... Categories: Data, Data Release - Revised; Tags: Kentland, IN, USGS Science Data Catalog (SDC), biogeochemical processes, greenhouse gas, nutrient content, All tags... river reach, surface water, water quality, Fewer tags Data used to evaluate the effects of field-level management practices on edge-of-field phosphorus loading in Minnesota and Wisconsin, 2004-17 This dataset is a compilation of 125 site years of data collected between 2004-2017 from 26 agricultural fields (2-17 ha) in Minnesota and Wisconsin, representing 13 environmental and seven management factors. Each field was continually monitored for snowmelt and storm event surface runoff volume and phosphorus (P) concentrations. Event data were compiled to calculate both P loads and flow-weighted mean P concentrations during frozen and non-frozen conditions each year. This dataset consists of qualitative information (such as agricultural landuse types, crop rotation information, and soil classifications) and quantitative information (measurements of precipitation and runoff, calculation of P yield). Categories: Data; Tags: Blue Earth County, Chisago County, Dodge County, Goodhue County, Iowa County, All tags... Kewaunee County, LaFayette County, Manitowoc County, Minnesota, Rock County, St. Croix County, Stearns County, USGS Science Data Catalog (SDC), Vernon County, Water Quality, Water Resources, Waukesha County, Wisconsin, Wright County, agriculture, hydrology, nutrient content, phosphorus, precipitation, regression analysis, runoff, soil chemistry, surface water quality, water chemistry, Fewer tags