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Water-Quality Assessment of the Eastern Iowa Basins: Data, September 1995 through September 1996

Open-File Report 99-66

By KIMBERLEE K. B. AKERS, DOUGLAS J. SCHNOEBELEN, MARK E. SAVOCA, LINDA R. ROBERTS, and KENT D. BECHER

U.S. Geological Survey, Iowa City, IA

Abstract

The full report is available in pdf.  Links to the pdf.

The U.S. Geological Survey began data-collection activities in the Eastern Iowa Basins study unit of the National Water-Quality Assessment Program in September 1995 with the purpose of determining the status and trends in water quality. Surface-water data were collected, beginning in March 1996, on a monthly basis with occasional extra high- and low-flow samples. Data collected from 12 sites on rivers and streams in the study unit included determinations of the physical properties and concentrations of nutrients, major ions, organic carbon, trace elements, suspended sediment, and dissolved pesticides. Data collected at four additional sites included physical parameters and determination of the concentration of dissolved pesticides. In addition, bed-sediment and fish-tissue samples were collected at 16 sites and analyzed for trace elements and hydrophobic pesticides. There were two ground-water studies conducted in June and July 1996. The first looked at the quality of ground water in the Silurian-Devonian and Upper Carbonate aquifers and sampled 33 wells once, and the second examined the effects of agriculture on shallow ground water of the Iowa River alluvial aquifer and sampled 23 wells once. Ground-water samples were analyzed for physical properties, nutrients, major ions, organic carbon, trace elements, dissolved pesticides, and volatile organic compounds.

CONTENTS

Abstract.

Introduction.

Purpose and Scope 

Description of the Eastern Iowa Basins 

Implementation of Water-Quality Studies;

Surface-Water-Quality Data Collection;

Sampling Sites;

Surface-Water Sample;

Biologic Sample Collection;

Analytical Procedures;

Ground-Water-Quality Data;

Geohydrology;

Site Selection

Ground-Water Sample;

Analytical Procedures;

Water-Quality Analysis and Quality Control

Surface Water.

Biology

Ground Water

Acknowledgments.

Selected References;

Hydrologic and Biologic Data;


AVAILABILITY

Download the PDF version of the report for high-resolution, printable pages (8.3MB).

1. Surface-water sampling sites in the Eastern Iowa Basins study unit

2. Wells sampled in the Silurian-Devonian and Upper Carbonate aquifers

3. Wells sampled in the Iowa River alluvial aquifer

4. Minimum reporting limits and analytical techniques for nutrients, major ions, suspended sediment, and

radiochemical and stable isotopes analyzed in water samples, September 1995 through September 1996

5. Minimum reporting limits and analytical techniques for selected pesticides analyzed in water samples,

September 1995 through September 1996

6. Minimum reporting limits and analytical techniques for volatile organic compounds analyzed in water

samples, September 1995 through September 1996

7. Minimum reporting limits and analytical techniques for trace elements analyzed in fish-tissue samples,

September 1995 through September 1996

8. Minimum reporting limits and analytical techniques for organochlorine pesticides and total polychlorinated biphenyls analyzed in fish-tissue samples, September 1995 through September 1996

9. Minimum reporting limits and analytical techniques for trace elements and carbon analyzed in

bed-sediment samples, September 1995 through September

10. Minimum reporting limits and analytical techniques for chlorinated pesticides and semivolatile

organic compounds analyzed in bottom-sediment samples, September 1995 through September 1996

11. Physical properties determined onsite at selected surface-water sites, 1996

12. Miscellaneous onsite determinations at selected surface-water sites, 1996

13. Nutrient and sediment concentrations in samples from selected surface-water sites, 1996

14. Major ion concentrations in samples from selected surface-water sites, 1996

15. Selected dissolved pesticide concentrations in samples from selected surface-water sites, 1996

16. Concentrations of selected metals in fish-tissue samples, 199596

17. Concentrations of organochlorine compounds in fish-tissue samples, 199596

18. Concentrations of selected metals in bed-sediment samples, 199596

19. Concentrations of selected organochlorine compounds in bed-sediment samples, 199596

20. Miscellaneous onsite determinations in samples from wells completed in the Silurian-Devonian and

Upper Carbonate aquifers, 1996

21. Nutrient concentrations in samples from wells completed in the Silurian-Devonian and Upper Carbonate aquifers, 1996

22. Major ion concentrations in samples from wells completed in the Silurian-Devonian and Upper Carbonate aquifers, 1996

23. Concentrations of radiochemicals and stable isotopes in samples from wells completed in the Silurian-

Devonian and Upper Carbonate aquifers, 1996

24. Selected dissolved pesticide concentrations in samples from wells completed in the Silurian-Devonian and Upper Carbonate aquifers, 1996

25. Concentrations of selected dissolved pesticide surrogates in samples from wells completed in the Silurian-Devonian and Upper Carbonate aquifers, 1996

26. Concentrations of volatile organic compounds in samples from wells completed in the Silurian-Devonian andUpper Carbonate aquifers, 1996

27. Miscellaneous onsite determinations in samples from wells in the Iowa River alluvial aquifer, 1996

28. Nutrient concentrations in samples from wells in the Iowa River alluvial aquifer, 1996

29. Major ion concentrations in samples from wells in the Iowa River alluvial aquifer, 1996

30. Concentrations of radiochemicals and stable isotopes in samples from wells in the Iowa River alluvial aquifer, 1996

31. Selected dissolved pesticide concentrations in samples from wells in the Iowa River alluvial aquifer, 1996

32. Concentrations of selected dissolved pesticide surrogates in samples from wells in the Iowa River alluvial aquifer, 1996

33. Concentrations of volatile organic compounds in samples from wells in the Iowa River alluvial aquifer, 1996

 

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