Environmental Engineering Reference
In-Depth Information
Michigan
River Rouge
watershed
Industrial
Residential
Commercial
N
0
4.5
9
18
27
36
45
km
FIGURE 9.1
Land use sampling sites within the Rouge River watershed. (From Murray, K. et al., J. Environ. Qual. , 33, 163,
2004. With permission, American Society of Agronomy.)
TABLE 9.1
Site and Sample Location by Land Use Category and Geologic Unit
Number of
Sites
Percentage of
Sites
Number of
Samples
Percentage of
Samples
Land use category
Residential
28
16.4
847
22.3
Commercial
95
55.5
1634
43.2
Industrial
48
28.1
1305
34.5
Total
171
100.0
3786
100.0
Soil units
Moraine
9
3.8
74
3.9
Outwash
6
2.6
66
3.5
Sandy silty clay
64
27.5
620
32.0
Sand
56
24.0
387
19.8
Silty clay
18
7.7
135
7.0
Upper clay
21
9.0
230
11.8
Lower clay
59
25.4
428
22.1
Total
233
100.0
1940
100.0
 
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