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Lake Erie Ecological Investigations 1980-2000: Benthic Invertebrate Community Analysis This Benthic Invertebrate Community Analysis dataset, a conceptual subgroup of the Lake Erie Ecological Investigations (LEEI) dataset, focuses on the benthic invertebrates sampled at Areas of Concern (AOCs) on Lake Erie. Per the Quality Assurance Project Plan (QAPP), the invertebrate samples were taken from sediments remaining from the sediment analysis. Identification of the invertebrates was completed by the same invertebrate taxonomist for both the 1998-2000 evaluation and 1986-87 historical evaluation (Smith et al. 1994) for increased consistency. Oligochaetes were identified to species if possible, chironomids were identified to genus, as adult specimens are needed for specific identification, and other taxa... Categories: Data; Tags: AOCs, Ameiurus nebulosus, Ashtabula, Ashtabula River, Black River, All tags... Black River, Buffalo, Buffalo River, Cleveland Harbor, Cleveland Harbor, Cuyahoga River, Cuyahoga River, Detroit, Detroit River, Detroit River, Great Lakes, Great Lakes, Great Lakes, Great Lakes Areas of Concern, Huron River, Lake Erie, Lake Erie, Lake Erie, Lake or marine sediment, Love Canal (historical), Maumee River, Michigan, Michigan, Mud Brook, Mud Brook, New York, New York, Niagara River, Niagara River, Ohio, Ohio, Old River, Old Woman Creek, Old Woman Creek, Ottawa River, PAHs, PCBs, Pennsylvania, Pennsylvania, Presque Isle Bay, Presque Isle Bay, aquatic ecosystems, benthos, benthos, biomarkers, biota, brown bullhead, contamination and pollution, datasets, ecotoxicology, environment, field sampling, fish, fish, freshwater ecosystems, heavy metal pollution, histology, industrial pollution, inlandWaters, invertebrates, invertebrates, liver tumors, metal elements, pathology, pesticide and herbicide contamination, plant and animal testing, polyaromatic hydrocarbons, polychlorinated biphenyls, population and community ecology, remediation, sediment, sediment analysis, species diversity, specimen collecting, toxic trace element contamination, water resources, Fewer tags Dataset of Lead-210 and Cesium-137 age dating This data release contains the data used to interpret the origin of the shallow lakes in the Khorezm Province, Uzbekistan, and the history of pesticide use around these lakes. The data include 1) lake sediment core data for age dating (cesium-137 and lead-210) for 12 lakes in Uzbekistan, 2) lake sediment core data for loss on ignition (LOI550)for determining organic carbon content of 12 lakes in Uzbekistan, 3) plant pollen occurrence and abundance from lake sediment cores for 6 lakes in Uzbekistan and 4) lake sediment core data for pesticide occurrence of DDT (dichlorodiphenyltrichloroethane) and its degradates and γ-HCH (gamma-hexachlorocyclohexane) for 12 lakes in Uzbekistan, The interpretation of these data will... Categories: Data; Types: Citation; Tags: Age dating (radiometric), Cesium, Cesium-137 dating, Khorezm, Lead-210 dating, All tags... Limnogeology, Loss on Ignition (LOI), Paleolimnology, Pesticide and herbicide contamination, Pollen analysis, Sediments, Urgench, Uzbekistan, Fewer tags Nutrient and pesticide data collected from the USGS National Water Quality Network and previous networks, 1950-2022 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, 36 sites from the USGS Cooperative Water Program are also included in this data release. This data release provides streamflow, nutrient, pesticide and sediment data collected and analyzed by NWQN and other historical water-quality networks from 1950-2022.... Categories: Data; Tags: United States, nutrient content, pesticide and herbicide contamination, river systems, sediment transport, All tags... streamflow, water quality, Fewer tags Datasets for determining the origin of shallow lakes in the Khorezm Province, Uzbekistan, and the history of pesticide use around these lakes This data release contains the data used to interpret the origin of the shallow lakes in the Khorezm Province, Uzbekistan, and the history of pesticide use around these lakes. The data include 1) lake sediment core data for age dating (cesium-137 and lead-210) for 12 lakes in Uzbekistan, 2) lake sediment core data for loss on ignition (LOI550)for determining organic carbon content of 12 lakes in Uzbekistan, 3) plant pollen occurrence and abundance from lake sediment cores for 6 lakes in Uzbekistan and 4) lake sediment core data for pesticide occurrence of DDT (dichlorodiphenyltrichloroethane) and its degradates and γ-HCH (gamma-hexachlorocyclohexane) for 12 lakes in Uzbekistan, The interpretation of these data will... Types: Citation; Tags: Age dating (radiometric), Cesium, Cesium-137 dating, Khorezm, Lead-210 dating, All tags... Limnogeology, Loss on Ignition (LOI), Paleolimnology, Pesticide and herbicide contamination, Pollen analysis, Sediments, USGS Science Data Catalog (SDC), Urgench, Uzbekistan, Water Resources, Fewer tags Lake Erie Ecological Investigations 1980-2000: Sediment Analysis This Sediment Analysis dataset, a conceptual subgroup of the Lake Erie Ecological Investigations (LEEI) dataset, focuses on the sediments sampled at Areas of Concern (AOCs) on Lake Erie. Per the Quality Assurance Project Plan (QAPP), sediment collections were a composite of at least five randomly selected samples collected from each site. Per an internal summary report, sediment samples were collected using a stainless steel Eckman dredge. Analytical methods and QA/QC were directed by the Patuxent Analytical Control Facility (PACF) of the US Fish and Wildlife Service. Per Dora Passino-Reader, the Geochemical & Environmental Research Group at Texas A&M University, College Station performed the analytical chemistry... Categories: Data; Tags: AOCs, Ameiurus nebulosus, Ashtabula, Ashtabula River, Black River, All tags... Black River, Buffalo, Buffalo River, Cleveland Harbor, Cleveland Harbor, Cuyahoga River, Cuyahoga River, Detroit, Detroit River, Detroit River, Great Lakes, Great Lakes, Great Lakes, Great Lakes Areas of Concern, Huron River, Lake Erie, Lake Erie, Lake Erie, Lake or marine sediment, Love Canal (historical), Maumee River, Michigan, Michigan, Mud Brook, Mud Brook, New York, New York, Niagara River, Niagara River, Ohio, Ohio, Old River, Old Woman Creek, Old Woman Creek, Ottawa River, PAHs, PCBs, Pennsylvania, Pennsylvania, Presque Isle Bay, Presque Isle Bay, aquatic ecosystems, benthos, benthos, biomarkers, biota, brown bullhead, contamination and pollution, datasets, ecotoxicology, environment, field sampling, fish, fish, freshwater ecosystems, heavy metal pollution, histology, industrial pollution, inlandWaters, invertebrates, invertebrates, liver tumors, metal elements, pathology, pesticide and herbicide contamination, plant and animal testing, polyaromatic hydrocarbons, polychlorinated biphenyls, population and community ecology, remediation, sediment, sediment analysis, species diversity, specimen collecting, toxic trace element contamination, water resources, 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 Surface water and bottom sediment chemical data and landscape variable input datasets for predicting the occurrence of chemicals of emerging concern in 25 U.S. river basins in the Great Lakes basin This data release includes concentrations of contaminants of emerging concern (CEC), by chemical class, for sites sampled within 25 river basins in the U.S. portion of the Great Lakes basin and associated watershed characteristics. The CEC data include concentrations in surface water and sediment samples that were collected during 2010-2014. During the first 3 years, sample sites near mostly urban areas were chosen. The last two years of study focused on other point sources and few nominal reference sites. Water and sediment samples were analyzed for a diverse suite of CECs including, but not limited to, pharmaceuticals, industrial chemicals, flame retardants, pesticides, fragrances, and plasticizers. Statistical... Tags: Environmental Health, Great Lakes, Illinois, Michigan, Minnesota, All tags... Model Archive, NewYork, Ohio, USGS Science Data Catalog (SDC), Water Quality, Water Resources, Wisconsin, boosted regression tree, freshwater, non-point source pollution, pesticide and herbicide contamination, pharmaceutical contamination, sediment, surface water, water resources, Fewer tags Data and citations describing the connections between agriculture and water quality in the United States This U.S. Geological Survey data release provides the data and citations for selected tables and figures in “Agriculture-A river runs through it-The connections between agriculture and water quality”. This Circular is based on the National Water-Quality Assessment Project’s study of Agricultural Chemicals: Sources, Behavior, and Transport. This study focused on the connections between agriculture and water quality by examining multiple components of the hydrological system within agricultural areas to improve the understanding of how agricultural chemicals are transported into and through streams and groundwater. These data support the following publication: Capel, P.D., McCarthy, K.A., Coupe, R.H., Grey, K.M.,... Types: Citation; Tags: California, Georgia, Illinois, Indiana, Iowa, All tags... Kansas, Maryland, Minnesota, Mississippi, Missouri, National Water Quality Program, Nebraska, North Dakota, Ohio, Oregon, Pennsylvania, USGS Science Data Catalog (SDC), United States, Washington, Wisconsin, agriculture, evaporation, evapotranspiration, fungicide, herbicide, insecticide, pesticide, pesticide and herbicide contamination, photosynthesis, transformation product, transpiration, water quality, water table, Fewer tags Lake Erie Ecological Investigations 1980-2000 The Lake Erie Ecological Investigations (LEEI) dataset, housed at the Great Lakes Science Center (GLSC) was developed during a reevaluation of Lake Erie Areas of Concern (AOCs) from 1998-2000. These AOCs were recognized as such by the International Joint Commission (IJC) of the United States and Canada due to their severe water pollution problems. The dataset includes data from both the 1998-2000 reevaluation as well as data from other historical evaluations from the 1980’s to mid-1990’s for comparison where available. Data Description: Rivers and harbors of the Great Lakes have been impacted for decades by heavy industrialization, densely populated areas, and agriculture resulting in contamination, eutrophication,... Tags: AOCs, Ameiurus nebulosus, Aquatic Biology, Areas of Concern, Ashtabula, All tags... Ashtabula River, Black River, Black River, Buffalo, Buffalo River, Cleveland Harbor, Cleveland Harbor, Cuyahoga River, Cuyahoga River, Detroit, Detroit River, Detroit River, Ecology, Great Lakes, Great Lakes, Great Lakes, Huron River, Lake Erie, Lake Erie, Lake Erie, Lake or marine sediment, Love Canal (historical), Maumee River, Michigan, Michigan, Mud Brook, Mud Brook, New York, New York, Niagara River, Niagara River, Ohio, Ohio, Old River, Old Woman Creek, Old Woman Creek, Ottawa River, PAHs, PCBs, Pennsylvania, Pennsylvania, Presque Isle Bay, Presque Isle Bay, USGS Science Data Catalog (SDC), Water Quality, aquatic ecosystems, benthos, benthos, biomarkers, biota, brown bullhead, contamination and pollution, datasets, ecotoxicology, environment, field sampling, fish, fish, freshwater ecosystems, heavy metal pollution, histology, industrial pollution, inlandWaters, invertebrates, invertebrates, liver tumors, metal elements, pathology, pesticide and herbicide contamination, plant and animal testing, polyaromatic hydrocarbons, polychlorinated biphenyls, population and community ecology, remediation, sediment, sediment analysis, species diversity, specimen collecting, toxic trace element contamination, water resources, 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 Potential contaminant sources and other landscape variables summarized for NHDPlus Version 2.1 catchments within the Chesapeake Bay Watershed (ver. 2.0, June 2021) This dataset consists of 262 variables which describe various known and suspected point and non-point sources of contaminants and endocrine disrupting compounds (EDCs) throughout the Chesapeake Bay Watershed. Contaminant data was summarized to the NHDPlus Version 2.1 catchment level (1:100K). Contaminant data summarized span a time range of 2001 to 2016 and include regulated facilities, pesticides, manure and biosolids application data, mercury deposition, animal feeding applications, septic systems, landfills, and land use and land cover. These data are presented in a comma separated file, which includes all variables summarized and the NHDPlus Version 2.1 FEATUREID field (also known as COMID). The FEATUREID field... Categories: Data, Data Release - Revised; Types: Citation; Tags: Aquatic Biology, Chesapeake Bay, Chesapeake Bay Basin, Delaware, Discharge Monitoring Report (DMR), All tags... District of Columbia, Environmental Health, Facility Registry Service (FRS), Geography, Land Use Change, Maryland, New York, Pennsylvania, Remote Sensing, Toxic Release Inventory (TRI), USGS Science Data Catalog (SDC), Virginia, Water Quality, Water Resources, West Virginia, Wildlife Biology, Wildlife Disease, biosolids application, concentrated animal feeding operations (CAFOs), contamination and pollution, geographic information systems, geography, health and disease, human impacts, industrial pollution, land use and land cover, landfills, manure nitrogen and phosphorus, mercury deposition, natural resources, nonpoint-source pollution, pesticide and herbicide contamination, pharmaceutical contamination, phytoestrogens, septic facilities, water quality, water resources, Fewer tags Nutrient and pesticide data collected from the USGS National Water Quality Network and previous networks, 1950-2021 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, 36 sites from the USGS Cooperative Water Program are also included in this data release. This data release provides streamflow, nutrient, pesticide and sediment data collected and analyzed by NWQN and other historical water-quality networks from 1950-2021.... Categories: Data; Tags: United States, nutrient content, pesticide and herbicide contamination, river systems, sediment transport, All tags... streamflow, water quality, 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 Lake Erie Ecological Investigations 1980-2000: Fish Community Analysis This Fish Community Analysis dataset, a conceptual subgroup of the Lake Erie Ecological Investigations (LEEI) dataset, focuses on the fish communities sampled at Areas of Concern (AOCs) on Lake Erie. Per the Quality Assurance Project Plan (QAPP), fish were sampled for identification and measurement of length and weight. Identification of fish were done by the same biologists for both the 1998-2000 data and the 1986-87 historical data (Smith et al. 1994). Any fish difficult to identify were preserved in buffered formalin for later identification. If large numbers of a particular species were collected the first thirty fish were measured and weighed; remaining fish were individually measured and group weighed. All... Categories: Data; Tags: AOCs, Ameiurus nebulosus, Ashtabula, Ashtabula River, Black River, All tags... Black River, Buffalo, Buffalo River, Cleveland Harbor, Cleveland Harbor, Cuyahoga River, Cuyahoga River, Detroit, Detroit River, Detroit River, Great Lakes, Great Lakes, Great Lakes, Great Lakes Areas of Concern, Huron River, Lake Erie, Lake Erie, Lake Erie, Lake or marine sediment, Love Canal (historical), Maumee River, Michigan, Michigan, Mud Brook, Mud Brook, New York, New York, Niagara River, Niagara River, Ohio, Ohio, Old River, Old Woman Creek, Old Woman Creek, Ottawa River, PAHs, PCBs, Pennsylvania, Pennsylvania, Presque Isle Bay, Presque Isle Bay, aquatic ecosystems, benthos, benthos, biomarkers, biota, brown bullhead, contamination and pollution, datasets, ecotoxicology, environment, field sampling, fish, fish, freshwater ecosystems, heavy metal pollution, histology, industrial pollution, inlandWaters, invertebrates, invertebrates, liver tumors, metal elements, pathology, pesticide and herbicide contamination, plant and animal testing, polyaromatic hydrocarbons, polychlorinated biphenyls, population and community ecology, remediation, sediment, sediment analysis, species diversity, specimen collecting, toxic trace element contamination, water resources, Fewer tags Nutrient and pesticide data collected from the USGS National Water Quality Network and previous networks, 1963-2019 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, 2 large inland river monitoring sites from the USGS Cooperative Water Program are also included in this data release. This data release provides streamflow, nutrient, pesticide and sediment data collected and analyzed by NWQN and other historical water-quality... Categories: Data; Tags: United States, nutrient content, pesticide and herbicide contamination, river systems, sediment transport, All tags... streamflow, water quality, Fewer tags Data Files to Support SEAWAVE-QEX Model for Simulating Concentrations of Selected Pesticides in the Continental United States, 1992-2012 Reported atrazine, carbaryl, chlorpyrifos, and fipronil concentrations for selected U.S. Geological Survey pesticide sampling sites were downloaded from the U.S. Geological Survey National Water Information System (NWIS) and modified for input into the SEAWAVE-QEX model. Modifications included identification of appropriate censoring limits to use for samples in which the pesticides were not detected, rounding reported concentrations to a consistent level of precision, and adjusting reported concentrations to correct for temporal trends in laboratory recovery rates. Tags: National Water Quality Program, USGS Science Data Catalog (SDC), United States, pesticide and herbicide contamination, water quality Rosen et al JoPL Pesticide Dataset This data release contains the data used to interpret the origin of the shallow lakes in the Khorezm Province, Uzbekistan, and the history of pesticide use around these lakes. The data include 1) lake sediment core data for age dating (cesium-137 and lead-210) for 12 lakes in Uzbekistan, 2) lake sediment core data for loss on ignition (LOI550)for determining organic carbon content of 12 lakes in Uzbekistan, 3) plant pollen occurrence and abundance from lake sediment cores for 6 lakes in Uzbekistan and 4) lake sediment core data for pesticide occurrence of DDT (dichlorodiphenyltrichloroethane) and its degradates and γ-HCH (gamma-hexachlorocyclohexane) for 12 lakes in Uzbekistan, The interpretation of these data will... Categories: Data; Types: Citation; Tags: Khorezm, Lake sediments, Limnogeology, Paleolimnology, Pesticide and herbicide contamination, All tags... Urgench, Uzbekistan, sediments, 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 Lake Erie Ecological Investigations 1980-2000: Reference Tables The Lake Erie Ecological Investigations (LEEI) dataset contains data collected on contaminants in sediments, benthic invertebrate populations, fish populations and abnormalities, and fish health of primarily brown bullhead in Areas of Concerns (AOCs) on Lake Erie. A subset of the larger dataset, this section specifically handles reference tables, used in database design in order to standardize often used values and to make the data file efficient, for the main tables of the LEEI dataset. The reference tables include: site.csv, site_date.csv, and species.csv. Categories: Data; Tags: AOCs, Ameiurus nebulosus, Ameiurus nebulosus, Ashtabula, Ashtabula River, All tags... Black River, Black River, Buffalo, Buffalo River, Cleveland Harbor, Cleveland Harbor, Cuyahoga River, Cuyahoga River, Detroit, Detroit River, Detroit River, Great Lakes, Great Lakes, Great Lakes, Great Lakes Areas of Concern, Great Lakes Areas of Concern (AOCs), Huron River, Lake Erie, Lake Erie, Lake Erie, Lake or marine sediment, Love Canal (historical), Maumee River, Michigan, Michigan, Mud Brook, Mud Brook, New York, New York, Niagara River, Niagara River, Ohio, Ohio, Old River, Old Woman Creek, Old Woman Creek, Ottawa River, PAHs, PCBs, Pennsylvania, Pennsylvania, Presque Isle Bay, Presque Isle Bay, aquatic ecosystems, benthos, benthos, biomarkers, biomarkers, biota, brown bullhead, contamination and pollution, datasets, ecotoxicology, environment, field sampling, fish, fish, freshwater ecosystems, heavy metal pollution, histology, industrial pollution, inlandWaters, invertebrates, invertebrates, liver tumors, metal elements, pathology, pesticide and herbicide contamination, plant and animal testing, polyaromatic hydrocarbons, polyaromatic hydrocarbons (PAHs), polychlorinated biphenyls, polychlorinated biphenyls (PCBs), population and community ecology, remediation, sediment, sediment analysis, species diversity, specimen collecting, toxic trace element contamination, water resources, Fewer tags Nutrient and pesticide data collected from the USGS National Water Quality Network and previous networks, 1950-2020 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, 35 sites from the USGS Cooperative Water Program are also included in this data release. This data release provides streamflow, nutrient, pesticide and sediment data collected and analyzed by NWQN and other historical water-quality networks from 1950-2020.... Categories: Data; Tags: United States, nutrient content, pesticide and herbicide contamination, river systems, sediment transport, All tags... streamflow, water quality, Fewer tags 1 2 »