Alternative Energy Draft EA - NASA Visitor Center at Wallops Flight ...
Alternative Energy Draft EA - NASA Visitor Center at Wallops Flight ... Alternative Energy Draft EA - NASA Visitor Center at Wallops Flight ...
4.3.5 Threatened and Endangered Species No Action Alternative Environmental Consequences Under the No Action Alternative, implementation of the Alternative Energy Project would not occur; therefore, no impacts on State or federally listed threatened or endangered species or federally designated critical habitat would occur. Proposed Action and Alternatives Based on the proposed location of the wind turbines and the likelihood that Wallops Island may provide suitable habitat for listed avian species, the flight path of birds may be affected by the wind turbines. Because the proposed solar panel installation lies within a highly developed area of the Main Base, installation and operation of the solar panels would not disturb or affect State or federally listed species or their habitat. Table 25 lists the federally endangered, threatened, and candidate species of concern within the vicinity of WFF that may be affected by the Proposed Action, and lists NASA’s determination of effects under Section 7 of the ESA. The area of effect for the construction of the wind turbines includes the footprint, access road infrastructure, work space for construction and staging areas (Figure 6). The operational area of effect of the wind turbines would include the overall height of the tower and top of the blades, the diameter of the blades, and the rotational area of the blades. Effects to State-listed species are discussed in the text below. Birds Table 25: Determination of Effects on Federally Listed Threatened and Endangered Species Scientific Name Common Name Determination of Effect Charadrius melodus Piping Plover May affect, likely to adversely affect Calidris canutus Red Knot May affect, likely to adversely affect Mammals Sciurus niger cinereus Delmarva fox squirrel No effect Reptiles Dermochelys coriaces leatherback sea turtle No effect Eretmochelys imbricate hawksbill sea turtle No effect Lepidechelys kempi Kemp’s ridley sea turtle No effect Caretta caretta loggerhead sea turtle No effect Chelonia mydas green sea turtle No effect Invertebrates Cicindela dorsalis dorsalis northeast beach tiger beetle No effect Plants Amaranthus pumilus seabeach amaranth No effect 122
Environmental Consequences While a collision with a turbine by a State or federally listed species could occur since these birds exist in the area, the potential impact should be much lower and not substantial in comparison to more common and abundant species. Listed species were infrequently observed during the surveys but no carcasses were recovered during the fatality study. The lack of observations of Piping Plover, Wilson’s Plover, and Upland Sandpiper during the 12-month survey combined with the lack of viable habitat in the proposed wind turbine area for these species indicates the risk should be very low. Only Peregrine Falcon might nest on the marshes near the proposed turbine sites; however, whether the individuals observed nest in the area or are part of a migratory population is unknown. Bald Eagle, Gull-billed Tern, and Red Knot would not likely nest in the vicinity of the turbines because there is little or no suitable habitat. These birds will forage in the general vicinity, but not likely in large numbers. Henslow’s Sparrow The utility-scale wind turbines and access roads would be constructed within potentially suitable habitat for this species. Avian mortality has been documented as an adverse effect of birds colliding with the rotating blades of wind turbines. To reduce the effects to Henslow’s Sparrow resulting from habitat disturbance, NASA has proposed the minimum necessary width for the access roads to the utility-scale wind turbines. The Proposed Action may result in minor adverse impacts on the Henslow’s Sparrow. Upland Sandpiper The utility-scale wind turbines and access roads would be constructed in wetlands that are not the preferred habitat of the Upland Sandpiper (open grassy areas), presenting a reduced risk of avian mortality associated with wind turbine collision. Noise from the construction activities would be of short duration and would likely present minor, if any, startle reactions for birds that were close to the proposed wind turbine sites. The Proposed Action may result in minor adverse impacts on the Upland Sandpiper. Piping Plover The utility-scale wind turbines and access roads would be constructed on the opposite side of Wallops Island from preferred habitat and historical nesting sites of the Piping Plover, presenting a reduced risk of avian mortality associated with wind turbine collision. Residential-scale wind turbines would not be constructed on Wallops Island. No construction is planned for areas within known Piping Plover nesting habitat. Noise from construction activities would be of short duration and would likely present minor, if any, startle reactions. WFF has developed a protected species monitoring plan, which includes the Piping Plover, in cooperation with USFWS (NASA, 2010c). NASA would continue to coordinate with CNWR and USDA personnel in monitoring the Wallops Island beach for Piping Plover activity. These personnel routinely monitor Assateague, Wallops Island, Assawoman, and Metompkin Island beaches for Piping Plovers during nesting season. Any nests discovered would be appropriately marked using a Global Positioning System (GPS) unit, identified with signage, and closed to personnel or visitor access. Additionally, educational signs would be posted at all beach access points to raise awareness of the species and to provide contact information. Basic species identification would be included in the natural resources training module of the WFF EMS, a requirement for all new employees at the facility. WFF would continue to distribute its annual 123
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Environmental Consequences<br />
While a collision with a turbine by a St<strong>at</strong>e or federally listed species could occur since these<br />
birds exist in the area, the potential impact should be much lower and not substantial in<br />
comparison to more common and abundant species. Listed species were infrequently observed<br />
during the surveys but no carcasses were recovered during the f<strong>at</strong>ality study. The lack of<br />
observ<strong>at</strong>ions of Piping Plover, Wilson’s Plover, and Upland Sandpiper during the 12-month<br />
survey combined with the lack of viable habit<strong>at</strong> in the proposed wind turbine area for these<br />
species indic<strong>at</strong>es the risk should be very low. Only Peregrine Falcon might nest on the marshes<br />
near the proposed turbine sites; however, whether the individuals observed nest in the area or are<br />
part of a migr<strong>at</strong>ory popul<strong>at</strong>ion is unknown. Bald Eagle, Gull-billed Tern, and Red Knot would<br />
not likely nest in the vicinity of the turbines because there is little or no suitable habit<strong>at</strong>. These<br />
birds will forage in the general vicinity, but not likely in large numbers.<br />
Henslow’s Sparrow<br />
The utility-scale wind turbines and access roads would be constructed within potentially suitable<br />
habit<strong>at</strong> for this species. Avian mortality has been documented as an adverse effect of birds<br />
colliding with the rot<strong>at</strong>ing blades of wind turbines. To reduce the effects to Henslow’s Sparrow<br />
resulting from habit<strong>at</strong> disturbance, <strong>NASA</strong> has proposed the minimum necessary width for the<br />
access roads to the utility-scale wind turbines. The Proposed Action may result in minor adverse<br />
impacts on the Henslow’s Sparrow.<br />
Upland Sandpiper<br />
The utility-scale wind turbines and access roads would be constructed in wetlands th<strong>at</strong> are not<br />
the preferred habit<strong>at</strong> of the Upland Sandpiper (open grassy areas), presenting a reduced risk of<br />
avian mortality associ<strong>at</strong>ed with wind turbine collision. Noise from the construction activities<br />
would be of short dur<strong>at</strong>ion and would likely present minor, if any, startle reactions for birds th<strong>at</strong><br />
were close to the proposed wind turbine sites. The Proposed Action may result in minor adverse<br />
impacts on the Upland Sandpiper.<br />
Piping Plover<br />
The utility-scale wind turbines and access roads would be constructed on the opposite side of<br />
<strong>Wallops</strong> Island from preferred habit<strong>at</strong> and historical nesting sites of the Piping Plover, presenting<br />
a reduced risk of avian mortality associ<strong>at</strong>ed with wind turbine collision. Residential-scale wind<br />
turbines would not be constructed on <strong>Wallops</strong> Island. No construction is planned for areas within<br />
known Piping Plover nesting habit<strong>at</strong>. Noise from construction activities would be of short<br />
dur<strong>at</strong>ion and would likely present minor, if any, startle reactions.<br />
WFF has developed a protected species monitoring plan, which includes the Piping Plover, in<br />
cooper<strong>at</strong>ion with USFWS (<strong>NASA</strong>, 2010c). <strong>NASA</strong> would continue to coordin<strong>at</strong>e with CNWR<br />
and USDA personnel in monitoring the <strong>Wallops</strong> Island beach for Piping Plover activity. These<br />
personnel routinely monitor Ass<strong>at</strong>eague, <strong>Wallops</strong> Island, Assawoman, and Metompkin Island<br />
beaches for Piping Plovers during nesting season. Any nests discovered would be appropri<strong>at</strong>ely<br />
marked using a Global Positioning System (GPS) unit, identified with signage, and closed to<br />
personnel or visitor access. Additionally, educ<strong>at</strong>ional signs would be posted <strong>at</strong> all beach access<br />
points to raise awareness of the species and to provide contact inform<strong>at</strong>ion. Basic species<br />
identific<strong>at</strong>ion would be included in the n<strong>at</strong>ural resources training module of the WFF EMS, a<br />
requirement for all new employees <strong>at</strong> the facility. WFF would continue to distribute its annual<br />
123