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Scientific Investigations Report 2013–5074

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Prepared in cooperation with the Metro Wastewater Reclamation District

Water Quality at a Biosolids-Application Area near Deer Trail, Colorado, 1993–1999

By Tracy J.B. Yager

Thumbnail of and link to report PDF (25.7 MB)Abstract

The Metro Wastewater Reclamation District (Metro District) in Denver, Colo., applied biosolids resulting from municipal sewage treatment to farmland in eastern Colorado beginning in December 1993. In mid-1993, the U.S. Geological Survey in cooperation with the Metro District began monitoring water quality at the biosolids-application area about 10 miles east of Deer Trail, Colo., to evaluate baseline water quality and the combined effects of natural processes, land uses, and biosolids applications on water quality of the biosolids application area. Water quality was characterized by baseline and post-biosolids-application sampling for selected inorganic and bacteriological constituents during 1993 through 1998, with some additional specialized sampling in 1999. The study included limited sampling of surface water and the unsaturated zone, but primarily focused on groundwater. See report for complete abstract.

First posted June 20, 2014

    For additional information contact:
    Director, Colorado Water Science Center
    U.S. Geological Survey
    Box 25046, Mail Stop 415
    Denver, CO 80225
    http://co.water.usgs.gov

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Suggested citation:

Yager, T.J.B., 2014, Water quality at a biosolids-application area near Deer Trail, Colorado, 1993–1999: U.S. Geological Survey Scientific Investigations Report 2013–5074, 125 p., http://dx.doi.org/10.3133/sir20135074.

ISSN 2328-0328 (online)


Contents

Abstract

Introduction

Approach

Water Quality

Summary

Acknowledgments

References Cited

Appendix 1. Information for U.S. Geological Survey monitoring wells near Deer Trail, Colorado, 1993 through 1998

Appendix 2. Chemical symbols and abbreviations used in reporting chemical data in the appendixes

Appendix 3. Physical properties and major-ion data for replicate water-quality samples collected near Deer Trail, Colorado, 1993 through 1998

Appendix 4. Nutrient data for replicate water-quality samples collected near Deer Trail, Colorado, 1993 through 1998

Appendix 5. Trace-element data for replicate water-quality samples collected near Deer Trail, Colorado, 1993 through 1998

Appendix 6. Codes used in reporting information and chemical data (appendix 7) for blank water-quality samples collected near Deer Trail, Colorado, 1993 through 1999

Appendix 7. Information and chemical data for blank water-quality samples collected near Deer Trail, Colorado, 1993 through 1999

Appendix 8. Performance-evaluation data from the U.S. Geological Survey Standard Reference Program for the Metro Wastewater Reclamation District Laboratory (1993–1998) and the U.S. Geological Survey National Water Quality Laboratory (1993–1999)

Appendix 9. Geochemical modeling results for well D6 using NETPATH for groundwater samples collected near Deer Trail, Colorado, 1993 to 1999


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