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  3. Watershed characteristics and streamwater constituent load data, models, and estimates for 15 watersheds in Gwinnett County, Georgia, 2000-2021
  4. 11: Streamwater sample constituent concentration outliers from 15 watersheds in Gwinnett County, Georgia for water years 2003-2020

11: Streamwater sample constituent concentration outliers from 15 watersheds in Gwinnett County, Georgia for water years 2003-2020

Dates

Publication Date
Start Date
2002-10-10
End Date
2020-09-29

Citation

Aulenbach, B.T., Henley, J.C., and Hopkins, K.G., 2023, Watershed characteristics and streamwater constituent load data, models, and estimates for 15 watersheds in Gwinnett County, Georgia, 2000-2021: U.S. Geological Survey data release, https://doi.org/10.5066/P9G8HZTY.

Summary

This dataset contains a list of outlier sample concentrations identified for 17 water quality constituents from streamwater sample collected at 15 study watersheds in Gwinnett County, Georgia for water years 2003 to 2020. The 17 water quality constituents are: biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), suspended sediment concentration (SSC), total nitrogen (TN), total nitrate plus nitrite (NO3NO2), total ammonia plus organic nitrogen (TKN), dissolved ammonia (NH3), total phosphorus (TP), dissolved phosphorus (DP), total organic carbon (TOC), total calcium (Ca), total magnesium (Mg), total copper (TCu), total lead (TPb), total zinc (TZn), and total dissolved solids (TDS). 885 outlier [...]

Contacts

Point of Contact :
Brent T Aulenbach
Originator :
Brent T Aulenbach, Joshua C Henley, Kristina G Hopkins
Metadata Contact :
Brent T Aulenbach
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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11_GwinnettCoGa_WaterQualityOutliers.xml
“Gwinnett County water quality outliers metadata”
Original FGDC Metadata
View 		26.92 KB application/fgdc+xml
11_GwinnettCoGa_WaterQualityOutliers.csv
“Gwinnett County water quality outliers data” 		67.54 KB text/csv

Purpose

The purpose of this dataset is to document streamwater sample constituent concentration outliers that were identified. These outlier concentrations were excluded from comparisons of base-flow and stormflow concentrations, from model calibration datasets used to estimate streamwater constituent loads, and from load calculations using the Beale ratio estimator--in support of the U.S. Geological Survey (USGS) Scientific Investigations Report "Hydrology, water-quality, and watershed characteristics in 15 watersheds in Gwinnett County, Georgia, 2002-20". This study is part of a long-term program to monitor and analyze the hydrologic and water-quality conditions of 15 watersheds in Gwinnett County, Georgia by the USGS in cooperation with Gwinnett County Department of Water Resources.

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