9624 ‎(2)‎

• UCREFRP Catalog Number: 9624
• Author: Bauch, N. J. and J. B. Bails.
• Title: Water-Quality Characteristics and Ground-Water Quantity of the Fraser River Watershed, Grand County, Colorado 1998-2001.
• USFW Year: 2004.
• USFW - Doc Type: \
• Copyright Material: NO

iv
8-13. Graphs showing:
8. (A) Specific conductance and dissolved (B) calcium, Q magnesium, (D) chloride,
and (E) sulfate concentrations overtime forwell 7 in the Fraser River watershed,
1998-2001 ............................................................................... 19
9. Dissolved sulfate and chloride concentrations and discharge atthe Fraser River
below Crooked Creek at Tabernash, Colorado, 1998-2001 ................................ 21
10. Dissolved ammonia and nitrate concentrations and discharge atthe
Fraser River below Crooked Creek atTabernash, Colorado, 1998-2001 .................. 22
11. Phosphorus concentrations and discharge atthe Fraser River below
Crooked Creek at Tabernash, Colorado, 1998-2001 ...................................... 23
12. Organic carbon concentrations and discharge atthe Fraser River below
Crooked Creek atTabernash, Colorado, 1998-2001 ....................................... 24
13. Fecal coliform bacteria concentrations and discharge atthe Fraser River below
Crooked Creek atTabernash, Colorado, 1998-2001 ....................................... 24
14. Map showing extent and depth of the alluvial aquifer in the upper Fraser River
watershed .................................................................................... 26
15. Graph showing ground-water level and temperature in the alluvial aquifer (site 9) in the
upper Fraser River watershed, 1998-2001 ...................................................... 27
Tables
1. Description of 11 ground-water wells and one surface-water sampling site in the Fraser
River watershed, August 1998-September 2001 ...................................................6
2. Statistical summary of selected ground-water data forthe Fraser Riverwatershed,
1998-2001, with U.S. Environmental Protection Agency and State of Colorado
water-quality standards and U.S. Geological Survey National Water Quality
Laboratory reporting levels ...................................................................... 10
3. Results of two-tailed Wilcoxon rank-sum tests for comparison of selected field properties
and water-quality constituents in wells by aquifer type, land use, and individual septic
disposal system (ISDS) or non-ISDS area, Fraser River watershed, 1998-2001 .................... 12
4. Statistical summary of selected field properties and water-quality constituents for surface
water atthe Fraser River below Crooked Creek atTabernash, Colorado, 1998-2001 .............. 20
APPENDIX I and II TABLES
5. Selected ground-water-quality data for wells in the Fraser River watershed, 1998-2001.......... 35
6. Comparison of laboratory results for environmental and quality-control samples for 9wells
in the Fraser River watershed, 1998-2001 ........................................................ 49
7. Summary of differences between environmental and quality-control samples for wells in
the Fraser River watershed, 1998-2001 ........................................................... 55
8. Variability and uncertainty in manganese, ammonia, nitrate, and radon-222 concentrations
as determined by replicate pairs for wells in the Fraser River watershed, 1998-2001 .............. 56
9. Concentrations of major ions, trace elements, nutrients, and dissolved organic carbon in
blank samples for wells in the Fraser River watershed, 1998-2001 ............................... 56