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Federal
11: Streamwater sample constituent concentration outliers from 15 watersheds in Gwinnett County, Georgia for water years 2003-2020
Department of the Interior —
This dataset contains a list of outlier sample concentrations identified for 17 water quality constituents from streamwater sample collected at 15 study watersheds in... -
Federal
09: Streamwater quality assurance sample results for 19 water-quality constituents in 15 watersheds in Gwinnett County, Georgia for years 2000-2020
Department of the Interior —
This dataset contains quality assurance sample concentrations for 19 constituents for the 15 monitored watersheds in Gwinnett County, Georgia, from 2000 to 2020.... -
Federal
Radioisotopic data from USGS laboratory in St. Petersburg, Florida
Department of the Interior —
Specific activities of cesium-137 (half life = 30.17 years), lead-210 (half life = 22.3 years), radium-226 (half life = 1,600 years), thorium-234 (half life = 24.1... -
Federal
08: Daily average stream base flow at 14 watersheds in Gwinnett County, Georgia for water years 2002-2020
Department of the Interior —
This dataset contains the daily average base flow, as determined by hydrograph separation, for 14 watersheds in Gwinnett County, Georgia for October 2001 through... -
Federal
15: Streamwater load and yield estimates for 12 constituents in 13 watersheds in Gwinnett County, Georgia for water years 2003-2020
Department of the Interior —
The dataset contains annual and model calibration period streamwater constituent load and yield estimates for 13 watersheds in Gwinnett County, Georgia for the water... -
Federal
04: National Land Cover Database land cover at 15 watersheds in Gwinnett County, Georgia from 2001 to 2019
Department of the Interior —
This dataset contains the percentage of 14 National Land Cover Database (NLCD) land cover classes within the drainage areas of 15 watersheds in Gwinnett County,... -
Federal
14: LOADEST estimation dataset used to estimate streamwater loads for 12 constituents in 13 watersheds in Gwinnett County, Georgia for water years 2003-2020
Department of the Interior —
This dataset contains the estimation data that was used in combination with the regression models to estimate streamwater constituent loads for 12 water-quality... -
Federal
Concentration of chemical constituents in lake sediments from selected coring locations on Lake Lanier, Georgia, May 2018 (ver. 2.0, June 2021)
Department of the Interior —
The data herein were collected in support of a larger study in Gwinnett County, Georgia, on the potential impacts of on-site waste water treatment (septic systems) on... -
Federal
05: Impervious areas within 15 watersheds in Gwinnett County, Georgia from 2000 to 2020
Department of the Interior —
This dataset contains the percentages of impervious areas within the drainage areas of 15 watersheds in Gwinnett County, Georgia from 2000 to 2020. The dataset... -
Federal
12: Model calibration data for fitting regression models used to estimate streamwater loads for 12 constituents in 13 watersheds in Gwinnett County, Georgia for water years 2003-2020
Department of the Interior —
The dataset contains the sample constituent concentrations and explanatory variable values used for fitting the load regression models that were then used to estimate... -
Federal
Lake Lanier Biogenic silica
Department of the Interior —
Biogenic silica concentration profiles (in weight percent) for 10 bed sediment cores are shown. Precision and bias were determined by analyses of replicates and... -
Federal
Flood-inundation area for the Yellow River in Gwinnett County, Georgia from Stone Mountain Highway to Centerville Highway
Department of the Interior —
The digital flood-inundation maps included in this data release were developed for a 16.4-mile reach of the Yellow River from 0.5-mile upstream of River Drive to... -
Federal
06: Property parcel building construction dates and densities in 15 watersheds in Gwinnett County, Georgia in 2021
Department of the Interior —
This dataset contains the number of buildings and their construction dates within the 15 study watersheds in Gwinnett County, Georgia. Dataset reflects existing... -
Federal
13: Models coefficients and statistics for regression models used to estimate streamwater loads for 12 water-quality constituents in 13 watersheds in Gwinnett County, Georgia for water years 2003-2020
Department of the Interior —
The dataset contains model coefficients and statistics for the 488 regression models used to estimate streamwater constituent loads for 13 watersheds in Gwinnett... -
Federal
03: 200-foot stream buffers shapefile for 15 watersheds in Gwinnett County, Georgia
Department of the Interior —
This Geographic Information System dataset contains shapefiles of 200-foot stream buffers for the 15 study watersheds in Gwinnett County, Georgia. The stream buffers... -
Federal
07: Population density in 15 watersheds in Gwinnett County, Georgia from 2000 to 2020
Department of the Interior —
This dataset contains population densities of 15 study watersheds in Gwinnett County, Georgia from 2000 to 2020. Population densities were determined for 2000, 2010,... -
Federal
02: Stormwater drainage areas shapefile for the 15 study watersheds in Gwinnett County, Georgia, August 2021
Department of the Interior —
This Geographic Information System dataset contains a shapefile of the stormwater drainage area boundaries for the 15 study watersheds in Gwinnett County, Georgia.... -
Federal
10: Laboratory standard reference samples for the Gwinnett County, Georgia study for years 2014-2020
Department of the Interior —
This dataset contains laboratory standard reference sample concentrations analyzed by RTI Laboratories, the analytical laboratory used by the Gwinnett County, Georgia... -
Federal
Watershed characteristics and streamwater constituent load data, models, and estimates for 15 watersheds in Gwinnett County, Georgia, 2000-2021
Department of the Interior —
This data release contains 15 datasets and associated metadata of watershed characteristics and data related to stream water quality and constituent load estimation... -
Federal
01: Watersheds shapefile for the 15 study watersheds in Gwinnett County, Georgia
Department of the Interior —
This Geographic Information System dataset contains a shapefile of the watershed drainage area boundaries for the 15 watersheds which were used in the study in...