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Tantalus Creek, site number 06036940

Metadata Updated: October 28, 2023

Sample and Specific Conductance Monitoring Site Near the USGS stream gage 06036940 (Latitude N 44°43'57.81", Longitude W 110°42'47.71", NAD83). Methods
Specific Conductance Data An In-Situ Aqua Troll 100 Data Logger was used to measure and store specific conductance measurements. Specific conductance measurements were made every 15 minutes. The specific conductance monitoring data were periodically checked against discrete measurements. The hand-held field meter used for discrete measurements and the continuous specific conductance probe were calibrated using NIST traceable standards and measurements were made following the procedure described in the USGS National Field Manual (USGS, 2015). Water Quality Data Samples were collected near the specific conductance monitoring sites. At the time of collection, all waters samples were filtered through a syringe filter (0.45-micrometer). Two splits of the filtered water were retained for chemical analyses, including an unacidified (FU) sample for determination of anion concentrations and a nitric acid preserved (FA; 1% volume-to-volume concentrated trace-metal grade nitric acid) sample for cation and trace metal analyses. During sample collection, the water temperature, specific conductance, and pH were measured. Concentrations of chloride, fluoride, bromide, and sulfate were determined with an ion chromatograph (Dionex DX600). Analytical errors for these constituents were typically less than 2%. Total alkalinity as bicarbonate was determined by titration with sulfuric acid to the bicarbonate end-point. The analytical error in alkalinity concentrations was approximately ± 3%. Concentrations of cations and trace metals were determined with an inductively coupled plasma-optical emission spectroscopy (Perkin Elmer Optima 7300 DV) following the methods described in Ball and others (2010). Arsenic concentrations for selected samples was determined by graphite furnace atomic absorption spectroscopy (Perkin Elmer PinAAcle 900T). Quality Control (QC) analyses included standard reference water samples, sample replicates, and blanks. The accuracy of the water chemistry data was checked by calculating charge and specific conductance balance using PHREEQCI (McCleskey, 2018; McCleskey and others, 2012). Results Specific Conductance Data The file TantalusSC.csv contains the date and time of each measurement and the specific conductance in units of microSiemens per centimeter. The entries in the data file appear in the following columns: A. Date and Time (format: MM/DD/YYYY HH:MM; MDT, mountain daylight time) B. Specific conductance (µS/cm, microSiemens per centimeter) C. Temperature (degree Celsius) Water Quality Data The file TantalusWQ.csv contains sample collection date and time, pH, specific conductance, solute concentrations, and calculated charge and specific conductance balance. The entries in the water quality data file appear in the following columns: A. Sample location B. Collection Date C. Collection Time D. pH (standard units) E. Specific conductance (microSiemens per centimeter) F. Calcium concentration (milligrams per liter) G. Magnesium concentration (milligrams per liter) H. Sodium concentration (milligrams per liter) I. Potassium concentration (milligrams per liter) J. Chloride concentration (milligrams per liter) K. Sulfate concentration (milligrams per liter) L. Alkalinity (milligrams per liter as bicarbonate) M. Iron concentration (milligrams per liter) N. Silica concentration (milligrams per liter) O. Boron concentration (milligrams per liter) P. Aluminum concentration (milligrams per liter) Q. Fluoride concentration (milligrams per liter) R. Lithium concentration (milligrams per liter) S. Strontium concentration (milligrams per liter) T. Barium concentration (milligrams per liter) U. Rubidium concentration (milligrams per liter) V. Bromide concentration (milligrams per liter) W. Manganese concentration (milligrams per liter) X. Copper concentration (milligrams per liter) Y. Zinc concentration (milligrams per liter) Z. Cadmium concentration (milligrams per liter) AA. Chromium concentration (milligrams per liter) AB. Cobalt concentration (milligrams per liter) AC. Lead concentration (milligrams per liter) AD. Nickel concentration (milligrams per liter) AE. Vanadium concentration (milligrams per liter) AF. Arsenic concentration (milligrams per liter) AG. Antimony concentration (milligrams per liter) AH. Charge Balance (percent) AI. Specific Conductance Imbalance (percent) References Ball, J.W., McCleskey, R.B., and Nordstrom, D.K., 2010, Water-chemistry data for selected springs, geysers, and streams in Yellowstone National Park, Wyoming, 2006-2008: U.S. Geological Survey Open-File Report 2010-1192, 109 p. McCleskey, R.B., 2018, Calculated specific conductance using PHREEQCI: U.S. Geological Survey software release, https://doi.org/10.5066/F7M907VD. McCleskey, R.B., Nordstrom, D.K., Ryan, J.N., and Ball, J.W., 2012, A New Method of Calculating Electrical Conductivity With Applications to Natural Waters: Geochimica et Cosmochimica Acta, v. 77, p. 369-382. [http://www.sciencedirect.com/science/article/pii/S0016703711006181] USGS, 2015. A.6 Field Measurements. 6.3 Specific Electrical Conductance, National field manual for the collection of water-quality data: U.S. Geological Survey Techniques of Water-Resources Investigations, book 9, chaps. A1-A9, available online at https://water.usgs.gov/owq/FieldManual/compiled/NFM_complete.pdf.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date June 1, 2023
Metadata Updated Date October 28, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date October 28, 2023
Publisher U.S. Geological Survey
Maintainer
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Identifier USGS:5e8be65b82cee42d13444356
Data Last Modified 20200820
Category geospatial
Public Access Level public
Bureau Code 010:12
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Metadata Catalog ID https://datainventory.doi.gov/data.json
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Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -110.7152,44.731187,-110.711417,44.73451
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
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