Table 4
Natural Resource Protection Standards
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---|---|---|---|---|---|---|---|
Natural Resource Feature
|
Zoning District Type
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Agricultural
|
Residential
|
Nonresidential
| |||||
Protection Standard
|
Mitigation Permitted
|
Protection Standard
|
Mitigation Permitted
|
Protection Standard
|
Mitigation Permitted
| ||
Steep slopes:
| |||||||
10% to 19%
|
0%
|
N/A
|
60%
|
No
|
40%
|
No
| |
20% to 30%
|
65%
|
No
|
75%
|
No
|
70%
|
No
| |
+30%
|
90%
|
No
|
85%
|
No
|
80%
|
No
| |
Woodlands and forests(a):
| |||||||
Mature
|
70%
|
No
|
70%
|
No
|
70%
|
Yes
| |
Young
|
50%
|
No
|
50%
|
Yes
|
50%
|
Yes
| |
Lakes and ponds
|
100%
|
Yes
|
100%
|
Yes
|
100%
|
Yes
| |
Streams
|
100%
|
No
|
100%
|
Yes
|
100%
|
Yes
| |
Shore buffer(a)
|
100%(a)
|
No
|
100%(a)
|
No
|
100%(a)
|
No
| |
Floodplains/ floodlands(b)
|
100%
|
No
|
100%
|
No
|
100%
|
Yes
| |
Drainageways
|
30%
|
Yes
|
30%
|
Yes
|
30%
|
Yes
| |
Wetlands and shoreland wetlands(a)
|
100%
|
No
|
100%
|
No
|
100%
|
Yes
|
15 canopy trees, minimum 3.5-inch caliper*
| |
12 canopy trees, minimum 2-inch caliper*
| |
250 canopy trees, minimum 4-foot-high whips
| |
50 understory trees, minimum 5-foot-high whips
| |
25 shrubs, minimum 12 inches high
|
*NOTE: Each 3.5-inch-caliper canopy tree may be
substituted with two 1.5-inch-caliper canopy trees.
|
12 canopy trees, minimum 3.5-inch caliper*
| |
10 canopy trees, minimum 2-inch caliper*
| |
200 canopy trees, minimum 4-foot-high whips
| |
40 understory trees, minimum 5-foot-high whips
| |
20 shrubs, minimum 12 inches high
|
*NOTE: Each 3.5-inch-caliper canopy tree may be
substituted with two 1.5-inch-caliper canopy trees.
|
Table 5
Tree Species for Woodland and Forest Mitigation
| ||
---|---|---|
Species Common Name
|
Species Scientific Name
| |
Sugar maple
|
Acer saccharum
| |
Bitternut hickory
|
Carya cordiformis
| |
Hackberry (sugarberry)
|
Celtis occidentalis
| |
Butternut
|
Juglans cinerea
| |
Black walnut
|
Juglans nigra
| |
Eastern hophornbeam
|
Ostrya virginiana
| |
Black cherry
|
Prunus serotina
| |
White oak
|
Quercus alba
| |
Red oak
|
Quercus borealis
| |
American basswood
|
Tilia americana
| |
American elm
|
Ulmus americana
| |
Slippery elm
|
Ulmus rubra
|