Mid-Atlantic Power Pathway Chalk Point Substation to Indian River ...

Mid-Atlantic Power Pathway Environmental Review Document
Chalk Point Substation to Indian River Substation Volume II – Environmental Analysis of
April 13, 2011 Chalk Point Substation to MD/DE State Line
1.1.2.1.3 Geologic Hazards
Geologic hazards can present some risk to the integrity of electrical transmission lines. For the Project,
geologic hazards (i.e., seismicity and faults, soil liquefaction, slope failures and landslides, and ground
subsidence) are not expected to pose significant risks. Potential impacts to the Project from these risks
would be minimized or avoided. The aerial transmission lines would be designed and constructed in
accordance with the applicable industry, federal and state regulations, which take into account these
potential geologic hazards.
1.1.2.2 Chestnut Converter
Construction and operation of the proposed Chestnut Converter would be completed on land adjacent to
the existing Project right-of-way as described in Volume I, Section 2.0.
1.1.2.2.1 Mineral Resources
No sand and gravel mines were identified within 0.25 miles of the Project site. Additionally, no oil,
natural gas, or coal fields or extraction sites were identified within 0.25 mile of the Project site, based on
review of aerial photographs, USGS topographic maps, and state and federal online resources. Therefore,
the Project is not expected to have any impact on exploitable mineral resources including fossil fuel
resources or future field development.
1.1.2.2.2 Paleontological Resources
As discussed previously, there are no known sensitive paleontological resource areas within the Project
area. Construction of the converter station and switching station could possibly encounter paleontological
resources. Should paleontological resources be encountered during construction, a paleontologist would
be consulted to determine the nature and significance of the resources, and if warranted, to make
recommendations for mitigation.
1.1.2.2.3 Geologic Hazards
The new converter station and switching station would be designed and constructed in accordance with
the applicable industry, federal and state regulations. Under these regulations, the structure’s foundation
would be designed and constructed to provide adequate protection from washouts, floods, unstable soils,
landslides, or other geologic hazards that may cause structure foundations to move or to sustain abnormal
loads.
1.1.2.3 Chestnut Converter to Western Shore Landing
Construction and operation of this Project component would be completed on land and installed
underground as described in Volume I, Section 2.0.
1.1.2.3.1 Mineral Resources
As discussed previously, there are no sand or gravel mines; or oil, natural gas, or coal fields or extraction
sites within 0.25 miles of the Project area. Impacts to mineral resources from the construction of the
underground components would not be expected.
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