MARIANA ISLANDS RANGE COMPLEX ... - Guam Legislature

MARIANA ISLANDS RANGE COMPLEX FEIS/OEIS MAY 2010
Table ES-3: Summary of Environmental Impacts (Continued)
Resource
Category
Alternative
National Environmental Policy Act
(Land and Territorial Waters,
12 nm)
Section 3.6
Marine
Communities
No Action
Alternative,
Alternative 1,
or
Alternative 2
Under the No Action Alternative there
may be localized disturbance, injury, and
mortality. No long-term population or
community-level effects.
Protective measures include continued
compliance with Service SOPs and
BMPs for ashore management, storage,
and discharge of hazardous materials
and wastes, and other pollution
protection measures.
Impacts would be similar to those
described for the No Action
Alternative, Alternative 1, and
Alternative 2 for territorial waters.
No significant harm to marine
communities.
Under Alternative 1 and Alternative 2
impacts and protective measures would
be similar to those described under the
No Action Alternative.
No significant impact to marine
communities.
Section 3.7
Marine Mammals
No Action
Alternative,
Alternative 1,
or
Alternative 2
Vessel Movements
Under the No Action Alternative,
Alternative 1, and Alternative 2: shortterm
behavioral responses would result
from general vessel disturbance. The
potential exists for injury or mortality
from vessel collisions. No long-term
population or community-level effects
would be expected.
Vessel Movements
Impacts would be similar to those
described for the No Action
Alternative, Alternative 1, and
Alternative 2 for territorial waters.
Aircraft Overflights
Aircraft Overflights
Under the No Action Alternative,
Alternative 1, and Alternative 2: potential
exposure to aircraft noise inducing shortterm
behavioral changes exists. No longterm
population or community-level
effects would be expected.
Impacts would be similar to those
described for the No Action
Alternative, Alternative 1, and
Alternative 2 for territorial waters.
Weapons Firing/Non-Explosive
Ordnance Use
Weapons Firing/Non-Explosive
Ordnance Use
Under the No Action Alternative,
Alternative 1, and Alternative 2 direct
strike of marine mammals unlikely due to
wide dispersal of training events and
marine mammals, as well as protective
measures. Potential for short-term
behavioral responses due to sonic
booms from large shells (e.g. 5 inch
shells).
Impacts would be similar to those
described for the No Action
Alternative, Alternative 1, and
Alternative 2 for territorial waters.
EXECUTIVE SUMMARY
ES-18