Table 4.--Nitrogen and sediment loads during baseflow, a typical summer storm, and the storms of August 26-28, 1995, and July 22-24, 1997, at nine sites in Mecklenburg County with various land uses
[lb/acre/day, pound per acre per day; na, not applicable; ns, no sample collected]
|
| Site no. (fig. 1) |
Stream |
Drainage area (acres) |
Land use |
Instantaneous total nitrogen load |
Instantaneous suspended sediment |
| Baseflow |
Summer 1996 |
August 1995 |
July 1997 |
Baseflow |
Summer 1996 |
August 1995 |
July 1997 |
| 59 |
Tributary to Little Sugar Creek |
78.7 |
Residential |
0.0043 |
8.47 |
13.6 |
29.5 |
0.055 |
1,470 |
4,460 |
6,800 |
| 60 |
Tributary to Edwards Branch |
14.7 |
Residential |
na |
.13 |
11.6 |
15.5 |
na |
6.34 |
4,060 |
9,460 |
| 61 |
Tributary to McMullen Creek |
80.6 |
Residential/institutional |
.0012 |
3.26 |
28.1 |
29.3 |
.031 |
1,470 |
10,000 |
16,500 |
| 62 |
Tributary to Irwin Creek |
14.1 |
Heavy industrial |
.0050 |
8.33 |
ns |
6.04 |
.121 |
1,040 |
ns |
1,270 |
| 28 |
Tributary to Sugar Creek |
40.3 |
Light industrial |
.0005 |
.15 |
ns |
.76 |
.036 |
9.17 |
ns |
45 |
| 63 |
Tributary to Fourmile Creek |
170 |
Residential/commercial |
.0016 |
4.80 |
6.99 |
3.74 |
.258 |
11,800 |
8,610 |
12,900 |
| 25 |
Gar Creek |
1,710 |
Mixed |
.0041 |
2.19 |
ns |
3.63 |
.182 |
112,000 |
ns |
140,000 |
| 24 |
McDowell Creek (Westmoreland Road) |
1,500 |
Mixed |
.0073 |
2.41 |
ns |
3.43 |
.293 |
1,410 |
ns |
14,100 |
| 41 |
McDowell Creek (Beatties Ford Road) |
16,800 |
Mixed |
.0047 |
ns |
ns |
.44 |
.189 |
ns |
ns |
82 |
Return to Effects of August 1995 and July 1997 Storms in the City of Charlotte and Mecklenburg County, North Carolina.