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Estimates of mean daily gross primary production and ecosystem respiration in beaver-affected reaches along Bronson and Fanno Creeks, OR This data release contains estimates of mean daily gross primary production (GPP) and ecosystem respiration (ER) in Bronson and Fanno Creeks, Oregon during August of 2016. These estimates were part of a larger study of the water-quality effects of beaver dams and beaver activity in selected urban streams of the Tualatin River Basin in northwestern Oregon. The mean daily GPP and ER values were estimated using two approaches (both of which are publicly available and documented): 1) a USGS model developed using the R programming language and 2) a Washington Department of Ecology model that runs in Excel. Inputs for the models included hourly measurements of dissolved-oxygen concentration, water temperature, photosynthetically... Categories: Data; Tags: Oregon, Tualatin River Basin, USGS Science Data Catalog (SDC), Water Quality, aquatic biology, All tags... hydrology, Fewer tags SPARROW model inputs and simulated streamflow, nutrient and suspended-sediment loads in streams of the Pacific Region of the United States, 2012 Base Year (ver 1.1, June 2020) The U.S. Geological Survey's (USGS) SPAtially Referenced Regression On Watershed attributes (SPARROW) model was used to aid in the interpretation of monitoring data and simulate streamflow and water-quality conditions in streams across the Pacific Region of the Unites States. SPARROW is a hybrid empirical/process-based mass balance model that can be used to estimate the major sources and environmental factors that affect the long-term supply, transport, and fate of contaminants in streams. The spatially explicit model structure is defined by a river reach network coupled with contributing catchments. The model is calibrated by statistically relating watershed sources and transport-related properties to monitoring-based... Categories: Data, Data Release - Revised; Tags: California, Idaho, Montana, Nevada, Nutrient Loads, All tags... Oregon, SPAtially Referenced Regression On Watershed attributes (SPARROW), Spatial analysis, Statistical analysis, Streamflow, Surface-water quality, Suspended-sediment loads, USGS Science Data Catalog (SDC), Utah, Washington, Wyoming, Fewer tags Cyanotoxin concentrations in extracts from cyanobacteria colonies, plankton net tows, and Solid Phase Adsorption Toxin Tracking (SPATT) samplers in western rivers, lakes, and reservoirs, including drinking water sources in the Oregon Cascades: 2016-2020 This data release contains cyanotoxin concentrations for microcystins, cylindrospermopsins, anatoxins, and saxitoxins assessed using Enzyme-Linked Immunosorbent Assays (ELISA) on 363 samples collected from 82 surface-water sites located in the Cascade Range in Oregon, and eight sites located outside of the Oregon Cascade Range in Washington and California, during 2016-2020. Three sample types were assessed: 1) benthic colonies and mats of cyanobacteria (n=109), 2) plankton net tows (n=90), and 3) Solid Phase Adsorption Toxin Tracking samplers (SPATTs)(n=164). Categories: Data; Tags: Anderson Lake, Aquatic Biology, California, Clackamas River, Coast Fork Willamette River, All tags... Columbia River, Deschutes River, ELISA, McKenzie River, Middle Fork Willamette River, North Santiam River, North Umpqua River, Oregon, SPATT, Sacramento River, Solid Phase Adsorption Toxin Tracking, Tualatin River, USGS Science Data Catalog (SDC), Washington, Water Quality, Willamette River, aquatic biology, benthos, biota, cyanobacteria, cyanotoxin, environment, inlandWaters, limnology, net tow, surface water quality, water sampling, Fewer tags Input and results from boosted regression tree and artificial neural network models that predict daily maximum pH and daily minimum dissolved oxygen in Upper Klamath Lake, 2005-2019 This data release contains the model inputs, outputs, and source code (written in R) for the boosted regression tree (BRT) and artificial neural network (ANN) models developed for four sites in Upper Klamath Lake which were used to simulate daily maximum pH and daily minimum dissolved oxygen (DO) from May 18th to October 4th in 2005-12 and 2015-19 at four sites, and to evaluate variable effects and their importance. Simulations were not developed for 2013 and 2014 due to a large amount of missing meteorological data. The sites included: 1) Williamson River (WMR), which was located in the northern portion of the lake near the mouth of the Williamson River and had a depth between 0.7 and 2.9 meters; 2) Rattlesnake... Categories: Data; Tags: Oregon, USGS Science Data Catalog (SDC), Upper Klamath Lake, Water Quality, environment, All tags... hydrology, inlandWaters, surface water quality, water chemistry, Fewer tags Daily baseflow specific conductance and daily baseflow discharge at selected sites within the Colorado River Basin for water years 1980-2022 This data release contains two sets of estimated values at selected sites within the Colorado River Basin: 1) daily specific conductance at 143 sites in the Upper Basin and 3 sites in the Lower Basin (WY 1980-2022); and 2) daily baseflow discharge at 100 sites in the Upper Basin and 3 sites in the Lower Basin (WY 1980-2022). The estimates of daily baseflow discharge will be used as input to an application of the USGS GSFLOW model, which is a coupled groundwater and surface-water flow model based on the integration of the USGS Precipitation-Runoff Modeling System (PRMS-V) and the USGS Modular Groundwater Flow Model (MODFLOW). Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arizona, Colorado, Hydrology, New Mexico, USGS Science Data Catalog (SDC), All tags... Utah, Water Quality, Water Resources, Wyoming, environment, hydrology, inlandWaters, salinity, surface water quality, water chemistry, Fewer tags Photosynthetically Active Radiation Measurements Collected at Malheur Lake, OR, 2017-2018 The USGS measured photosynthetically active radiation (PAR, wavelength between 400 and 700 nanometers) at Malheur Lake, Oregon, as vertical profiles and as continuous measurements at a fixed depth, in 2017 and 2018. Malheur Lake is a large, shallow, turbid lake located in southeastern Oregon that fluctuates widely in surface area in response to yearly precipitation and climatic cycles. High suspended-sediment concentrations likely are negatively affecting the survival of aquatic plants. The PAR measurements in this data release were collected to assess PAR attenuation in the lake, and to quantify attenuation as a function of water quality (primarily turbidity). The continuous PAR measurements were collected at 10-minute... Categories: Data; Tags: Malheur Lake, Oregon, USGS Science Data Catalog (SDC), Water Quality, environment, All tags... inlandWaters, limnology, surface water quality, Fewer tags Input and output data for the Precipitation-Runoff Modeling System (PRMS) used to predict seasonal water availability during 2000-2015 in the Upper Klamath River Basin, Oregon and California This data release contains the model input and output data, and supporting files, from hydrologic simulations of streamflow conditions in the upper Klamath River Basin using the Precipitation-Runoff Modeling System (PRMS). The model was calibrated for the portion of the basin draining into Upper Klamath Lake. It simulates daily streamflow, snow, solar radiation, evapotranspiration, surface-water, and groundwater processes within the basin. The model calibration period spanned water years 2000 through 2015, and the model validation period spanned water years 1984 through 1999. The model was calibrated and validated using measured streamflow, snowpack, evapotranspiration, and solar radiation data sets. Categories: Data; Tags: California, Hydrology, Oregon, USGS Science Data Catalog (SDC), Upper Klamath, All tags... Water Resources, environment, inlandWaters, modeling, streamflow, water resources, Fewer tags Mean concentrations of silicate solutes at selected fixed water-quality stations in western Oregon and northwestern California (1951-2016) This data set contains the mean concentrations of silicate solutes at fixed water-quality stations in western Oregon and northwestern California between 1951 and 2016. Categories: Data 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 Absorbance and fluorescence measurements and concentrations of disinfection by-products in source water and finished water in the McKenzie River Basin, Oregon: 2012-2014 This data release contains the results from a study that characterized the concentration and quality of dissolved organic carbon (DOC) in the McKenzie River, a relatively pristine watershed in western Oregon, and its link to forming disinfection by-products (DBPs) in treated drinking water. The study aimed to identify the primary source(s) of DOC in source water for the Eugene Water and Electric Board’s (EWEB) conventional treatment plant on the McKenzie River near river mile 11, upstream of Hayden Bridge. The two classes of regulated compounds examined—trihalomethanes (THMs) and haloacetic acids (HAAs)—form when organic carbon in raw source water reacts with chlorine and (or) bromine during water treatment. The... Categories: Data; Tags: McKenzie River, Oregon, USGS Science Data Catalog (SDC), Water Quality, Water Resources, All tags... disinfection by-products, dissolved organic carbon, environment, inlandWaters, optical properties of water, raw absorbance, river systems, surface water quality, Fewer tags Dissolved Gas Modeling Results for Groundwater Samples Collected in the Western Lake Michigan Drainages and Eastern Iowa Basins Study Areas of the United States: 2007, 2017 This data release contains the results from a study of the transport and transformation of nitrate in groundwater and streams across diverse glacial terranes within the Western Lake Michigan (WMIC) Drainages and Eastern Iowa (EIWA) Basins of the United States. The primary focus of the study was on how varying redox conditions influence the timing and delivery of nitrate to streams in agricultural watersheds. The data represents dissolved gas modeling results that were obtained from the Dissolved Gas Modeling and Environmental Tracer Analysis (DGMETA) software program. DGMETA was used to produce calibrated dissolved gas models that provide optimal recharge temperature, excess air, and excess nitrogen gas concentrations... Categories: Data; Tags: Hydrology, Iowa, Michigan, Minnesota, USGS Science Data Catalog (SDC), All tags... Water Quality, environment, groundwater quality, inlandWaters, nutrient content (water), surface water quality, Fewer tags Water quality measurements in off-channel water bodies of the Willamette River near Albany and Keizer, OR (2017 and 2019) The tabular data sets and associated maps in this data release represent water-quality data that were collected between April and November of 2017 and between July and November of 2019 to describe baseline conditions prior to or sometimes following treatments using herbicides or other methods to reduce the biomass of non-native water primrose (Ludwigia) within off-channel water bodies of the Willamette River near Albany and Keizer, Oregon. The water-quality parameters measured in this study included water temperature, specific conductance, pH, dissolved oxygen, turbidity, total chlorophyll, phycocyanin (blue-green algae pigment), and fluorescing dissolved organic matter in surface water. Categories: Data; Tags: Albany, Benton County, Keizer, Linn County, USGS Science Data Catalog (SDC), All tags... Water Quality, Western Oregon, Willamette Mission State Park, Willamette River, algae, environment, inlandWaters, oxygen content (water), water pH, water quality, water temperature, Fewer tags County-level livestock data for the Pacific drainages of the United States, 2012 The U.S. Geological Survey (USGS) is developing SPARROW models (SPAtially Related Regressions On Watershed Attributes) to assess the transport of contaminants (e.g., nutrients) through the Pacific drainages of the United States (the Columbia River basin; the coastal drainages of Washington, Oregon, and California; the Klamath River basin; the Central Valley of California, and the west slopes of the Sierra Nevada Mountains). SPARROW relates instream water quality measurements to spatially referenced characteristics of watersheds, including contaminant sources and the factors influencing terrestrial and aquatic transport. The population of livestock within a watershed is a potential factor affecting nutrient delivery... Categories: Data; Tags: Geography, USGS Science Data Catalog (SDC), Water Quality, Western United States, environment, All tags... farming, inland waters, Fewer tags Daily baseflow specific conductance, daily baseflow discharge, and seasonal baseflow discharge and baseflow dissolved solids loads at selected sites within the Colorado River Basin for water years 1980 – 2022 This data release contains three sets of estimated values at selected sites within the Colorado River Basin: 1) daily specific conductance at 143 sites in the Upper Basin and 3 sites in the Lower Basin (WY 1980-2022); 2) daily baseflow discharge at 100 sites in the Upper Basin and 3 sites in the Lower Basin (WY 1980-2022); and 3) seasonal baseflow discharge and baseflow dissolved solids load at 143 sites in the Upper Basin (WY 1986-2020). The estimates of daily baseflow discharge will be used as input to an application of the USGS GSFLOW model, which is a coupled groundwater and surface-water flow model based on the integration of the USGS Precipitation-Runoff Modeling System (PRMS-V) and the USGS Modular Groundwater... Categories: Data; Tags: Arizona, Colorado, Hydrology, New Mexico, USGS Science Data Catalog (SDC), All tags... Utah, Water Quality, Water Resources, Wyoming, environment, hydrology, inlandWaters, salinity, surface water quality, water chemistry, Fewer tags Mean annual loads of suspended sediment, total suspended solids, and silicate solutes at selected fixed water-quality stations in western Oregon and northwestern California (1951-2016) This data set contains estimated mean annual loads of suspended sediment, total suspended solids, and silicate soutes for selected watersheds of western Oregon and northwestern California between water years 1951 and 2016. The loads were estimated using the USGS Fluxmaster program with no detrending, which is equivalent to the loads estimated using the USGS LOADEST program. Categories: Data Input and results from a boosted regression tree (BRT) model relating base flow nitrate concentrations in the Chesapeake Bay watershed to catchment characteristics (1970-2013) This data release contains a boosted regression tree (BRT) model (written in the R programming language), and the input and output data from that model that were used to relate base flow nitrate concentrations in the Chesapeake Bay watershed to catchment characteristics. The input data consists of two types of information: 1) surface water nitrate concentrations collected by the USGS and partnering agencies in the Chesapeake Bay watershed between 1970 and 2013 and 2) potential predictor variables that included nitrogen sources, catchment characteristics, soil and groundwater chemistry, soil drainage and composition, and aquifer geology. The results from the BRT model were used to identify ten significant predictors... Categories: Data; Tags: Chesapeake Bay Basin, USGS Science Data Catalog (SDC), nutrient content (water), surface water quality Compilation of total dissolved solids concentrations and specific conductance measurements in the Upper Colorado River Basin, 1894 – 2022 This data release contains total dissolved solids (TDS) concentrations and specific conductance (SC) measurements collected at surface-water monitoring locations and groundwater monitoring wells within the Upper Colorado River Basin (UCRB) between 1894 and 2022. Discrete TDS and SC results were obtained from the Water Quality Portal (WQP). Continuous SC monitoring results were obtained from the USGS National Water Information System (NWIS). The data set includes 127,294 TDS results that were collected at 12,339 sites between 1900 and 2022, and 705,918 SC results that were collected at 19,630 sites between 1894 and 2022. The SC results represented 244,784 discrete measurements at 19,625 sites and 461,134 mean daily... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arizona, Colorado, Hydrology, New Mexico, USGS Science Data Catalog (SDC), All tags... Upper Colorado River Basin, Utah, Water Quality, Water Resources, Wyoming, environment, groundwater quality, hydrology, inlandWaters, salinity, surface water quality, water chemistry, Fewer tags Water-quality conditions related to bedload, suspended sediment, and silicate solutes in watersheds of western Oregon and northwestern California This data release includes three categories of data that were compiled as part of a study of sediment and solute transport and landscape denudation in watersheds of western Oregon and northwestern California: 1) mean annual loads of suspended sediment, total suspended solids, and silicate solutes at fixed water-quality stations; 2) fluvial transport of bedload, suspended sediment, and silicate solutes; and 3) mean concentrations of silicate solutes at fixed water-quality stations. Categories: Data; Tags: Geomorphology, Northwest California, USGS Science Data Catalog (SDC), Western Oregon, river systems, All tags... sediment transport, surface water quality, Fewer tags Surface-water transfers and removals in the Pacific drainages of the United States This data release contains a comprehensive, spatially referenced database of surface-water transfer and removal events in the Pacific drainages of the United States, which include the Columbia River basin, the Puget Sound basin, the coastal drainages of Washington, Oregon, and California, and the Central Valley of California. The database also includes mean annual estimates of the water diverted at each event. These estimates were mostly based on information available from the U.S. Geological Survey and the U.S. Bureau of Reclamation but also, for some events, from state and local water management agencies. While these estimates generally represent conditions between 1974 and 2014, the database includes information... Categories: Data; Tags: California, Hydrology, Idaho, Montana, Oregon, All tags... USGS Science Data Catalog (SDC), Washington, environment, inlandWaters, irrigation, power generation, public supply water use, utilitiesCommunication, water use, Fewer tags Reach-scale estimates of nutrient, water use, dissolved oxygen, and pH conditions in the Pacific drainages of the United States This data release contains data sets that describe reach-scale water-quality conditions for the Pacific drainages of the United States. The nutrient and water use conditions represent the predictions from recent USGS SPARROW (Spatially Related Regression on Watershed Attributes) modeling as well as other watershed attributes. The SPARROW predictions and other watershed attributes were also used as predictors of dissolved oxygen and pH conditions in multiple linear regression models. Categories: Data; Tags: California, Idaho, Montana, Oregon, USGS Science Data Catalog (SDC), All tags... Washington, Water Quality, Wyoming, nutrient content (water), oxygen content (water), water pH, Fewer tags