This asset provides data on the acid-base status of lakes and streams. Key chemical indicators measured include: sulfate, nitrate, ammonium, chloride, Acid Neutralizing Capacity (ANC), pH, base cations, dissolved organic carbon (DOC), total aluminum. TIME and LTM are part of EPA's Environmental Monitoring and Assessment Program (EMAP). Long-term monitoring of the acid-base status (pH, ANC, SO4, NO3, NH4, DOC, base cations, Al) in lakes and streams. Monitoring is conducted in acid sensitive regions of the Eastern U.S.

This dataset compiles surface water chemistry data from 1980 to 2020 and will be updated annually with an approximate lag time of one year. Data are collected in four regions in the eastern United States (Virginia streams, New York lakes and streams, Maine and New Hampshire lakes, and Vermont lakes). These data are used to calculate trends in surface water chemistry to assess aquatic ecosystem response to changes in sulfur and nitrogen deposition. Water chemistry in this data can be influenced by the ambient flow conditions. To be included in the dataset, sites needed to have regular sampling (at least once per year for 20 years). Citation information for this dataset can be found in Data.gov's References section.

This dataset compiles surface water chemistry data from 1980 to 2020 and will be updated annually with an approximate lag time of one year. Data are collected in four regions in the eastern United States (Virginia streams, New York lakes and streams, Maine and New Hampshire lakes, and Vermont lakes). These data are used to calculate trends in surface water chemistry to assess aquatic ecosystem response to changes in sulfur and nitrogen deposition. Water chemistry in this data can be influenced by the ambient flow conditions. To be included in the dataset, sites needed to have regular sampling (at least once per year for 20 years). Citation information for this dataset can be found in Data.gov's References section.

The purpose of this data release is to provide water quality data that were collected during a raft sampling campaign near USGS streamgage 372728107475701 (Animas River at Bakers Bridge north of Durango, CO) to USGS streamgage 09364500 (Animas River at Farmington, NM) between the dates 06/06/2022 and 06/10/2022. Chemical and physical parameters were collected at 1-minute intervals with two In-Situ Aqua TROLL 600s. The parameters of water temperature, specific conductivity, salinity, total dissolved solids, resistivity, density, dissolved oxygen concentration, dissolved oxygen saturation, pH, oxidation-reduction potential, turbidity, barometric pressure, and Oxygen Partial Pressure are contained in file continuous_sonde464818_data.csv. The parameters of water temperature, chlorophyll-a florescence, and chloride concentration are contained in the file continuous_sonde855445_data.csv.

This data set includes information on water quality of lakes and streams across Ontario since 1976. It includes: * major anions and cations * nutrients * chlorophyll * metals Data were collected as part of routine monitoring of water quality of inland waters and for scientific and research purposes.

Long-term freshwater quality monitoring data for sites in the Maritime Coastal basin for the past 15 years or longer for nutrients, metals, major ions, and other physical-chemical variables are included in this dataset. Monitoring is conducted by Environment and Climate Change Canada (ECCC) and Parks Canada as well as through the Canada-New Brunswick Water Quality Monitoring Agreement, the Canada-PEI Water Annex, and through collaborative work with the province of Nova Scotia to assess water quality status and long-term trends, detect emerging issues, establish water quality guidelines and track the effectiveness of remedial measures and regulatory decisions.

This data package was created 2024-10-17 12:33:28 by NPSTORET and includes selected project, location, and result data. Data contained in the Mid-Atlantic Network NPSTORET back-end file (COMBINED_MIDN_20240208_1236.ACCDB) were filtered to include: Project: - MIDN_APCO_WQ: Appomattox Court House National Historical Park Vital Signs Water Quality Monitoring - MIDN_BOWA_WQ: Booker T. Washington National Monument Vital Signs Water Quality Monitoring - MIDN_FRSP_WQ: Fredericksburg and Spotsylvania County Battlefields Memorial National Military Park Vital Signs Water Quality Monitoring - MIDN_GETT_WQ: Gettysburg National Military Park and Eisenhower National Historic Site Vital Signs Water Quality Monitoring - MIDN_HOFU_WQ: Hopewell Furnace National Historic Site Vital Signs Water Quality Monitoring - MIDN_PETE_WQ: Petersburg National Battlefield Vital Signs Water Quality Monitoring - MIDN_RICH_WQ: Richmond National Battlefield Park Vital Signs Water Quality Monitoring Station: - Include Trip QC And All Station Visit Results Value Status: - Accepted or Certified (exported as Final) or Final The data package is organized into five data tables: - Projects.csv - describes the purpose and background of the monitoring efforts - Locations.csv - documents the attributes of the monitoring locations/stations - Results.csv - contains the field measurements, observations, and/or lab analyses for each sample/event/data grouping - HUC.csv - enumerates the domain of allowed values for 8-digit and 12-digit hydrologic unit codes utilized by the Locations data table - Characteristics.csv - enumerates the domain of characteristics available in NPSTORET to identify what was sampled, measured or observed in Results Period of record for filtered data is 2008-10-01 to 2023-09-27. This data package is a snapshot in time of multiple National Park Service projects. The most current data for these projects, which may be more or less extensive than that in this data package, can be found on the Water Quality Portal at: https://www.waterqualitydata.us/data/Result/search?project=MIDN_APCO_WQ&mimeType=csv&zip=yes&dataProfile=resultPhysChem&providers=STORET https://www.waterqualitydata.us/data/Result/search?project=MIDN_BOWA_WQ&mimeType=csv&zip=yes&dataProfile=resultPhysChem&providers=STORET https://www.waterqualitydata.us/data/Result/search?project=MIDN_FRSP_WQ&mimeType=csv&zip=yes&dataProfile=resultPhysChem&providers=STORET https://www.waterqualitydata.us/data/Result/search?project=MIDN_GETT_WQ&mimeType=csv&zip=yes&dataProfile=resultPhysChem&providers=STORET https://www.waterqualitydata.us/data/Result/search?project=MIDN_HOFU_WQ&mimeType=csv&zip=yes&dataProfile=resultPhysChem&providers=STORET https://www.waterqualitydata.us/data/Result/search?project=MIDN_PETE_WQ&mimeType=csv&zip=yes&dataProfile=resultPhysChem&providers=STORET https://www.waterqualitydata.us/data/Result/search?project=MIDN_RICH_WQ&mimeType=csv&zip=yes&dataProfile=resultPhysChem&providers=STORET