To compensate for wetland conversion
that resulted from the expansion of the Cedar Creek Substation in Delaware’s New
Castle County, Delmarva Power worked with the Army Corps of Engineers under
Nationwide Permit 27 (aquatic habitat restoration, establishment and
enhancement activities) to mitigate for impacts associated with the expansion
occurring within wetlands in the substation. The construction work required
discharging fill material into .216 acres of non-tidal wetlands in order to
expand electrical equipment and restore 0.226 acres of emergent wetlands on the
site within the substation to compensate for the wetland loss.
The goal of the wetland restoration
proposal was to compensate for the ecological function and values of the
permitted wetland loss. Cedar Creek Substation is located between tributaries
to Sawmill Branch on the west and Cedar Swamp to the east; both tributaries
lead to the Delaware River. Soil erosion and sediment controls, including
perimeter controls and the implementation of environmental protection measures,
were installed and maintained throughout the life of the project. An
environmental monitor was on site to oversee construction and wetland
Restoration was completed in spring
2013, and monitoring continued throughout the year to ensure the enhancement of
the functional value of the wetlands.
These wetland restoration projects are
examples of how we maintain and upgrade facilities in ways that promote
environmental stewardship and conservation.