1-3. Maps showing:
1. Catawba and Wateree River Basins, North and South Carolina
2. Locations of data-collection sites and point-source discharges in the Catawba River Basin,
North and South Carolina
3. Locations of U.S. Geological Survey streamgaging stations and the subbasins used
for inflow estimates to the Catawba River, S.C.
4. Graphs showing estimated and measured streamflows for Lake Wylie to Sugar Creek subbasin,
and the Sugar Creek, Twelvemile Creek, and Waxhaw Creek subbasins for (A) August 23-27, 1996,
and (B) July 11-15, 1997
5. Map showing locations of dye releases and sampling sites for the time-of-travel studies
on the Catawba River, S.C., August 1996 and July 1997
6-12. Graphs showing:
6. (A) Measured dye concentrations from the left-, center-, and right-channel flow tubes, and
(B) the composite dye concentration at river mile 134.6 on the Catawba River, S.C., August 1996
7. Measured concentrations for (A) instantaneous dye releases in the upper and (B) continuous
dye releases in the lower points on the Catawba River, S.C., August 24-25, 1996
8. Measured concentrations for (A) instantaneous dye releases in the upper and (B) continuous dye
releases in the lower points on the Catawba River, S.C., July 12-13, 1997
9. Summary of water-quality data collected at eight stations on the Catawba River, S.C.,
August 23-27, 1996
10. Summary of water-quality data collected at eight stations on the Catawba River, S.C.,
July 11-15, 1997
11. Summary of water-quality data collected at three tributaries to the Catawba River, S.C.,
August 23 27, 1996
12. Summary of water-quality data collected at three tributaries to the Catawba River, S.C.,
July 11-15, 1997
13. Cross sections of the Catawba River, S.C., at (A) pools and riffles (river mile [RM] 128.0),
(B) rapids (RM 116.8), and (C) the headwaters of Fishing Creek Reservoir (RM 110.3)
14. Longitudinal profile of the thalweg elevations of the Catawba River, S.C.
15. Major constituent interactions in the QUAL2E subroutine of the Branched Lagrangian Transport Model
16. Idealized BRANCH model schematization
17. Schematization of the Branched Lagrangian Transport Model cross sections in the study reach
of the Catawba River, S.C.
18-48. Graphs showing:
18. Example of spline smoothing of water levels measured at U.S. Geological Survey streamgaging
station 02147259 (river mile 110.3) on the Catawba River at Fort Lawn, S.C.
19. Measured and simulated water levels used in the calibration of the BRANCH model for
U.S. Geological Survey streamgaging stations (A) 02146000, Catawba River near Rock Hill, S.C.
(river mile 137.6); (B) 02147020 Catawba River below Catawba, S.C. (river mile 122.0); and
(C) 02147187, Catawba River near Landsford, S.C. (river mile 115.5), during August 24-29, 1996
20. Measured and simulated streamflows used in the calibration of the BRANCH model for
U.S. Geological Survey streamgaging stations (A) 02146000, Catawba River near Rock Hill, S.C.
(river mile 137.6) and (B) 02147020, Catawba River below Catawba, S.C. (river mile 122.0),
during August 24-29, 1996
21. Measured and simulated water levels used in the validation of the BRANCH model for
U.S. Geological Survey streamgaging stations (A) 02146000, Catawba River near Rock Hill, S.C.
(river mile 137.6); (B) 02147020 Catawba River below Catawba, S.C. (river mile 122.0); and
(C) 02147187, Catawba River near Landsford, S.C. (river mile 115.5), during July 11-15, 1997
22. Measured and simulated streamflows used in the validation of the BRANCH model for
U.S. Geological Survey streamgaging stations (A) 02146000, Catawba River near Rock Hill, S.C.
(river mile 137.6) and (B) 02147020, Catawba River below Catawba, S.C. (river mile 122.0),
during July 11-15, 1997
23. Measured and simulated dye concentrations used in the calibration of the Branched Lagrangian
Transport Model for the Catawba River, S.C., at (A) river mile 131.1 and (B) river mile 111.4,
resulting from the dye release in the upper reach, August 24-26, 1996
24. Measured and simulated dye concentrations used in the calibration of the Branched Lagrangian
Transport Model for the Catawba River, S.C., at (A) river mile 118.5; (B) river mile 114.3; and
(C) river mile 111.4, resulting from the dye release in the lower reach, August 24-26, 1996
25. Measured and simulated dye concentrations used in the validation of the Branched Lagrangian
Transport Model for the Catawba River, S.C., at (A) river mile 118.5; (B) river mile 114.3; and
(C) river mile 111.4, resulting from the dye release in the lower reach, July 12-13, 1997
26. Measured and simulated water temperatures used in the Branched Lagrangian Transport Model
calibration for eight locations on the Catawba River, S.C., August 23-27, 1996
27. Measured and simulated water temperatures used in the Branched Lagrangian Transport Model
validation for eight locations on the Catawba River, S.C., July 11 15, 1997
28. Measured and simulated organic nitrogen concentrations used in the Branched Lagrangian
Transport Model calibration for eight locations on the Catawba River, S.C., August 23-27, 1996
29. Measured and simulated organic nitrogen concentrations used in the Branched Lagrangian
Transport Model validation for eight locations on the Catawba River, S.C., July 11-15, 1997
30. Measured and simulated ammonia nitrogen concentrations used in the Branched Lagrangian
Transport Model calibration for eight locations on the Catawba River, S.C., August 23-27, 1996
31. Measured and simulated ammonia nitrogen concentrations used in the Branched Lagrangian
Transport Model validation for eight locations on the Catawba River, S.C., July 11-15, 1997
32. Measured and simulated nitrate nitrogen concentrations used in the Branched Lagrangian
Transport Model calibration for eight locations on the Catawba River, S.C., August 23-27, 1996
33. Measured and simulated nitrate nitrogen concentrations used in the Branched Lagrangian
Transport Model validation for eight locations on the Catawba River, S.C., July 11-15, 1997
34. Measured and simulated algal biomass concentrations used in the Branched Lagrangian
Transport Model calibration for eight locations on the Catawba River, S.C., August 23-27, 1996
35. Measured and simulated algal biomass concentrations used in the Branched Lagrangian
Transport Model calibration for eight locations on the Catawba River, S.C., July 11-15, 1997
36. Measured and simulated organic phosphorus concentrations used in the Branched Lagrangian
Transport Model calibration for eight locations on the Catawba River, S.C., August 23-27, 1996
37. Measured and simulated organic phosphorus concentrations used in the Branched Lagrangian
Transport Model validation for eight locations on the Catawba River, S.C., July 11-15, 1997
38. Measured and simulated orthophosphate concentrations used in the Branched Lagrangian
Transport Model calibration for eight locations on the Catawba River, S.C., August 23-27, 1996
39. Measured and simulated orthophosphate concentrations used in the Branched Lagrangian
Transport Model validation for eight locations on the Catawba River, S.C., July 11-15, 1997
40. Measured and simulated ultimate carbonaceous biochemical oxygen demand concentrations
used in the Branched Lagrangian Transport Model calibration for eight locations on the
Catawba River, S.C., August 23-27, 1996
41. Measured and simulated ultimate carbonaceous biochemical oxygen demand concentrations used
in the Branched Lagrangian Transport Model validation for eight locations on the Catawba River,
S.C., July 11-15, 1997
42. Measured and simulated dissolved-oxygen concentrations used in the Branched Lagrangian
Transport Model calibration for eight locations on the Catawba River, S.C., August 23-27, 1996
43. Measured and simulated dissolved-oxygen concentrations used in the Branched Lagrangian
Transport Model validation for eight locations on the Catawba River, S.C., July 11-15, 1997
44. Sensitivity of simulated streamflow at river mile 122.0 on the Catawba River, S.C., to changes
in (A) cross-sectional area, (B) flow-resistance coefficient, (C) inflows from Lake Wylie Dam,
and (D) inflows from tributary streams, August 23-28, 1996
45. Sensitivity of the Branched Lagrangian Transport Model at river mile 122.0 on the Catawba
River, S.C., to changes in (A) dispersion coefficient, and (B) storage values, August 23-27, 1996
46. Longitudinal profiles of simulated 24-hour mean and minimum dissolved-oxygen concentrations
for the no-load condition and two point-source loading conditions at 21 locations on the
Catawba River, S.C., August 24, 1996
47. Longitudinal profiles for 24-hour (A) mean and (B) minimum dissolved-oxygen concentrations
for August 24, 1996, from the addition of an effluent load near river miles 122.3 and RM 119.2
48. Loadings of (A) organic phosphorus and (B) orthophosphate at river mile 111.4 (S.C.
Highway 9) for four loading conditions on the Catawba River, S.C., August 25-27, 1996
TABLES
1. Maximum and mean streamflow, period of record, and drainage area for selected U.S. Geological Survey
streamflow gaging stations in the Catawba-Wateree Basin, North and South Carolina
2. Drainage areas at selected locations in the Catawba River Basin, S.C.
3. National Pollutant Discharge Elimination System permit limits for wastewater-treatment facilities on the
Catawba River, S.C.
4. Summary of data collected for use in calibrating and validating the Catawba River, S.C.,
water-quality model
5. Period of record for continuous water level, water temperature, and dissolved-oxygen concentration
monitoring sites on the Catawba River, S.C.
6. Summary of water level, water temperature, and dissolved-oxygen data at five sites
on the Catawba River, S.C.
7. Summary of streamflow data collected at four tributaries to the Catawba River, S.C.,
during August 23-27, 1996, and July 11-15, 1997
8. Dominant factors influencing subbasin flow along with the drainage areas used in the subbasin flow
estimates to the Catawba River, S.C.
9. Drainage area of U.S. Geological Survey stations used to estimate subbasin inflows
for the Catawba River, S.C.
10. Maximum, mean, and minimum streamflows for August 23-27, 1996, and July 11-15, 1997,
at selected sites in the Catawba River Basin, S.C.
11. Time-of-travel data collected on the Catawba River, S.C., for August 24-25, 1996,
and July 12-13, 1997
12. Measured and calculated reaeration rate coefficients, reach length, and travel times for the lower
Catawba River, S.C., August 24-25, 1996, and July 12-13, 1997
13. Mean and median concentrations of selected constituents in main-stem sites on and tributary sites
to the Catawba River, S.C., for August 23-27, 1996, and July 11-15, 1997
14. Mean concentrations of 5-day biochemical oxygen demand, total phosphorus, and total Kjeldahl nitrogen
collected by the South Carolina Department of Health and Environmental Control during 1958-97
and by the U.S. Geological Survey during this study at three locations on the Catawba River, S.C.
15. Community production and respiration, water-column respiration, and substrate- and sediment-oxygen
demand for selected locations on the Catawba River, S.C., August 24-25, 1996, and July 12-13, 1997
16. Wastewater-effluent data from water samples collected by six major dischargers
on the Catawba River, S.C., during August 23-27, 1996, and July 11-55, 1997
17. Meteorological data for August 23-28, 1996, and July 11-16, 1997, and 1961-90 average daily high
and low air temperatures in the Catawba River Basin, S.C.
18. Daily rainfall at selected sites in the Catawba River Basin, August 24-28, 1996
19. Summary water-level and streamflow statistics for BRANCH model calibration and validation
20. Measured and simulated time of travel of a conservative dye tracer during August 24-26, 1996,
and July 12-13, 1997, on the Catawba River, S.C.
21. Summary statistics for measured and simulated water temperatures on the Catawba River, S.C.,
during August 23-27, 1996, and July 11-15, 1997
22. Rate coefficients, recommended values, and values used in the Catawba River water-quality model
23. Summary statistics for the measured and simulated water-quality concentrations for seven sites
on the Catawba River, S.C., August 23-27, 1996
24. Summary statistics for the measured and simulated water-quality concentrations for seven sites
on the Catawba River, S.C., July 11-15, 1997
25. Sensitivity indices for the Branched Lagrangian Transport Model inputs for river mile 122.0
on the Catawba River, S.C., August 24, 1996
26. Comparison of the ultimate oxygen demand from wastewater effluent discharges on the Catawba River,
S.C., for August 24, 1996, with the National Pollution Discharge Elimination System permit levels
27. Simulated 24-hour mean and minimum dissolved-oxygen concentrations for three point-source loading
conditions at 21 locations on the Catawba River, S.C.
28. Simulated 24-hour mean and minimum dissolved-oxygen concentrations for three point-source loading
conditions at 21 locations on the Catawba River, S.C.
