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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. 10: Laboratory standard reference samples for the Gwinnett County, Georgia study for years 2014-2020

10: Laboratory standard reference samples for the Gwinnett County, Georgia study for years 2014-2020

Dates

Publication Date
Start Date
2014-10-01
End Date
2020-10-01

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 laboratory standard reference sample concentrations analyzed by RTI Laboratories, the analytical laboratory used by the Gwinnett County, Georgia study. These water-quality-control samples are part of the U.S. Geological Survey (USGS) Standard Reference Samples (SRS) Project inter-laboratory comparison study. RTI Laboratories sample concentrations along with the included inter-laboratory result statistics (for most probable value and standard error) can be used to assess the laboratory’s analytical precision and bias. Sample concentrations are reported for 12 constituents for 13 round-robin sample rounds, in which prepared samples are sent to participating laboratories twice per year, and were conducted between [...]

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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10_GwinnettCoGa_WaterQualityReferenceStandards.xml
“Gwinnett County water quality reference samples metadata”
Original FGDC Metadata
View 		22.5 KB application/fgdc+xml
10_GwinnettCoGa_WaterQualityReferenceStandards.csv
“Gwinnett County water quality reference samples data” 		9.14 KB text/csv

Purpose

The purpose of this dataset is to document the U.S. Geological Survey Standard Reference Samples (SRS) Project water-quality-control samples that were analyzed to evaluate laboratory analytical precision and bias of RTI Laboratories, used by the Gwinnett County, Georgia study. Summaries of laboratory precision from these water-quality control samples are contained in Appendix 1, “Quality assurance, quality control, and quality assessment summary” of the 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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