Title

Streamwater pH, Sulfate, Copper, and Zinc Concentration Data Collected from 1980 to 2021 in Mineralized Watersheds Throughout the Colorado Rocky Mountains, USA

Authors

Tanya N. Petach: Civil, Environmental, and Architectural Engineering Dept., University of Colorado, Boulder, CO, USA
Andrew H. Manning: U.S. Geological Survey, Denver, CO, USA
Robert L. Runkel: U.S. Geological Survey, Denver, CO, USA
Diane M. McKnight: Civil, Environmental, and Architectural Engineering Dept., University of Colorado, Boulder, CO, USA

General Information Regarding this Database

This database was collated from publicly available sources to support the study presented in Manning et al. (in press). The purpose of the study was to evaluate temporal trends in the chemistry of headwater streams in Colorado, USA, draining mineralized (hydrothermally altered) areas affected by acid-rock drainage. The database contains pH and sulfate, zinc, and copper concentration data for streamwater samples collected from 1980 to 2021 during late summer and fall (July 15 through November 30) at 22 different sites. Additional details regarding data aggregation provided in Manning et al. (in press).

Definition of Column Headers and Abbreviations

Site_ID = Site name
Source = Data source. Referenced sources are listed below in ?References? 
Org = Organization responsible for collection of data obtained from the Water Quality Portal
EPA = U.S. Environmental Protection Agency
USGS = U.S. Geological Survey 
CDPHE = Colorado Department of Public Health and Environment
CRW = Colorado River Watch
Org_Site = Sampling site identifier listed in the data source, if available
Stream = Name of stream where sample site is located
Date = Date of sample collection in the format YYYY-MM-DD
Latitude and Longitude = Latitude and longitude of sampling location in digital degrees
Analyte = Analyte measured
Result = Reported concentration of analyte
Unit = Unit of concentration
mg/L = milligrams per liter
ug/L = micrograms per liter
Flag = Code indicating special case applying to sample, including:
1 = Sample is unfiltered such that the total constituent concentration was measured rather than the dissolved constituent concentration (see Manning et al., in press, for details on specific conditions under which unfiltered samples were included)
2 = Sampling location >200 m (but <600 m) from the site location listed in Table S1 in Manning et al. (in press)

References

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Boyer, E.W., McKnight, D.M., Bencala, K.E., Brooks, P.D., Anthony, M.W., Zellweger, G.W., Harnish, R.E., 1999. Streamflow and Water Quality Characteristics for the Upper Snake River and Deer Creek Catchments in Summit County, Colorado: Water Years 1980 to 1999.  University of Colorado Institute of Arctic and Alpine Research Occasional Paper 53, 81 p. https://www.colorado.edu/instaar/research/publications/instaar-occasional-papers

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CDPHE, 2021. Personal communication with Mark Rudolph of the Colorado Department of Public Health and Environment, June, 2021, Denver, Colorado (mark.rudolph@state.co.us).

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Morrison, J.M., Manning, A.H., Wanty, R.B., 2019. Geochemistry and environmental tracer data for groundwater, stream water, and ferricrete samples from Handcart Gulch, Colorado. U.S. Geological Survey data release, https://doi.org/10.5066/P9C8COCU.

Morrison, J.M., Manning, A.H., Runkel, R.L., Walton-Day, K., Wanty, R.B., 2022. Geochemistry and environmental tracer data for groundwater, stream water, and soil and sediment from North Quartz Creek, Colorado. U.S. Geological Survey data release, https://doi.org/10.5066/P9V0J8FS.

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Petach, T.N., 2022. Remediation of acid rock drainage in a changing climate: assessment of bulkhead closures and long-term water quality trends in the Colorado Mineral Belt. Ph.D. Thesis, University of Colorado Boulder. https://scholar.colorado.edu/concern/graduate_thesis_or_dissertations/5d86p1522

Petach, T.N., Manning, A.H., Wanty, R.B., Runkel, R.L., McGee, B.N., 2023. Chemistry and flow data from headwater streams draining hydrothermally altered areas in Colorado, USA: U.S. Geological Survey data release, https://doi.org/10.5066/P99UJDPC.

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