A 2-year study of streamflow and water-quality characteristics in Wind Cave National Park was performed by the U.S. Geological Survey in cooperation with the National Park Service. During this study, streamflow and water-quality data were collected for three of the park's perennial streams (Cold Spring, Beaver, and Highland Creeks) from January 2002 through November 2003. The potential influence of parking lot runoff on cave drip within Wind Cave also was investigated by collecting and analyzing several time-dependent samples from a drainage culvert downstream from the parking lot and from Upper Minnehaha Falls inside the cave following a series of simulated runoff events. The primary focus of the report is on data collected during the 2-year study from January 2002 to November 2003; however, data collected previously also are summarized.
Losing reaches occur on both Beaver and Highland Creeks as these streams flow across outcrops of bedrock aquifers within the park. No streamflow losses occur along Cold Spring Creek because its confluence with Beaver Creek is located upstream from the outcrop of the Madison aquifer, where most streamflow losses occur.
Physical properties, major ions, trace elements, nutrients, bacteria, benthic macroinvertebrates, organic (wastewater) compounds, bottom sediment, and suspended sediment are summarized for samples collected from 2 sites on Cold Spring Creek, 2 sites on Beaver Creek, and 1 site on Highland Creek. None of the constituent concentrations for any of the samples collected during 2002-03 exceeded any of the U.S. Environmental Protection Agency drinking-water standards, with the exception of the Secondary Maximum Contaminant Level for pH, which was exceeded in numerous samples from Beaver Creek and Highland Creek. Additionally, the pH values in several of these same samples also exceeded beneficial-use criteria for coldwater permanent fisheries and coldwater marginal fisheries. Water temperature exceeded the coldwater permanent fisheries criterion in numerous samples from all three streams. Two samples from Highland Creek also exceeded the coldwater marginal fisheries criterion for water temperature.
Mean concentrations of ammonia, orthophosphate, and phosphorous were higher for the upstream site on Beaver Creek than for other water-quality sampling sites. Concentrations of E. coli, fecal coliform, and total coliform bacteria also were higher at the upstream site on Beaver Creek than for any other site.
Samples for the analysis of benthic macroinvertebrates were collected from one site on each of the three streams during July 2002 and May 2003. The benthic macroinvertebrate data showed that Beaver Creek had lower species diversity and a higher percentage of tolerant species than the other two streams during 2002, but just the opposite was found during 2003. However, examination of the complete data set indicates that the quality of water at the upstream site was generally poorer than the quality of water at the downstream site. Furthermore, the quality of water at the upstream site on Beaver Creek is somewhat degraded when compared to the quality of water from Highland and Cold Spring Creeks, indicating that anthropogenic activities outside the park probably are affecting the quality of water in Beaver Creek.
Samples for the analysis of wastewater compounds were collected at least twice from four of the five water-quality sampling sites. Bromoform, phenol, caffeine, and cholesterol were detected in samples from Cold Spring Creek, but only phenol was detected at concentrations greater than the minimum reporting level. Concentrations of several wastewater compounds were estimated in samples collected from sites on Beaver Creek, including phenol, para-cresol, and para-nonylphenol-total. Phenol was detected at both sites on Beaver Creek at concentrations greater than the minimum reporting level. Bromoform; para-cresol; ethanol,2-butoxy-phosphate; and cholesterol were detected at Highland Creek; however, none of these concentrations were greater than the minimum reporting level.
The geochemical composition of bottom sediments was analyzed in one composite sample from each of the three streams. Arsenic concentrations of 9.5 micrograms per gram in the sample from Cold Spring Creek and of 9.4 micrograms per gram in the sample from Beaver Creek exceeded the U.S. Environmental Protection Agency's threshold effects guidelines for sediment, the NOAA effects range low value, and the National Irrigation Water Quality Program level of concern. The bottom-sediment sample from Highland Creek had the lowest percentage of organic, organic plus inorganic, and inorganic carbon of any site sampled during this study.
Samples for the analysis of suspended-sediment concentration were collected from each of the five water-quality sampling sites. Of the five sampling sites, mean concentrations of suspended sediment were highest in samples from the upstream site on Cold Spring Creek.
Analyses of water samples collected from the parking lot at the drainage culvert on September 4, 2002, following a simulated runoff event showed that toluene, benzene, meta- and para-xylene, chloroform, methyl isobutyl ketone, and acetone were present in the runoff. Analysis of a background sample collected from Upper Minnehaha Falls prior to the initiation of the simulated runoff event showed that only very low levels of toluene were present and at concentrations less than the minimum reporting level. Traces of acetone, total benzene, ethyl benzene, meta- and para-xylene, ortho-xylene, and styrene were present in the sequential cave-drip samples collected following the simulated runoff event, but at much lower levels than reported by a previous study.
Purpose and Scope
Description of the Study Area
Data-Collection Sites and Methods
Methods for Determining Streamflow Losses
Sampling and Analytical Methods
Instream Water Quality
Physical Properties and Major Ions
Bacteria and Benthic Macroinvertebrates
Organic (Wastewater) Compounds
Runoff from Parking Lot
Summary and Conclusions
Heakin, A.J., 2004, Streamflow and water-quality characteristics for Wind Cave National Park, South Dakota, 2002-03: U.S. Geological Survey Scientific Investigations Report 2004-5071, 68 p.
This report is available online in Portable Document Format (PDF). If you do not have the Adobe Acrobat PDF Reader, it is available for free download from Adobe Systems Incorporated.
Download the Report (PDF, 3.1MB) except table 16.
Download table 16.xls (XLS, 291kb) as an Excel file or download table 16.txt (TXT, 73kb) as an ASCII text file.
Document Accessibility: Adobe Systems Incorporated has information about PDFs and the visually impaired. This information provides tools to help make PDF files accessible. These tools convert Adobe PDF documents into HTML or ASCII text, which then can be read by a number of common screen-reading programs that synthesize text as audible speech. In addition, an accessible version of Acrobat Reader 5.0 for Windows (English only), which contains support for screen readers, is available. These tools and the accessible reader may be obtained free from Adobe at Adobe Access.
Send questions or comments about this report to the author, A.J. Heakin (605) 355-4560 ext. 216.
For more information about USGS activities in South Dakota, visit the USGS South Dakota District home page.
|AccessibilityFOIAPrivacyPolicies and Notices|
|U.S. Department of the Interior, U.S. Geological Survey
Page Contact Information: Contact USGS
Last modified: Thursday, December 01 2016, 08:04:13 PM