The concept phase of project review and approval requires mapping
of natural resources, vegetative buffer strips, highly erodible soils,
and slopes 15% and steeper. These mapped areas should be protected
from erosion using additional measures or, wherever possible, designated
to remain undisturbed. This data serves as the foundation for developing
both the erosion and sediment control and stormwater management facets
of the site development plan. Field verification is necessary to verify
topographic maps, soil maps, and other materials.
The site development plan provides a more detailed design of
the project. Included in this step is a narrative describing how erosion
and sediment control will be integrated into the stormwater management
strategy using ESD in accordance with the Design Manual. An overlay
plan showing stormwater and erosion and sediment control practices
is also required as part of the site development submittal. After
approval from the approving agencies, the applicant will proceed with
final plan preparation.