Environmental Impact Statement - Sonoma Land Trust

California Department of Fish and Game
U.S. Fish and Wildlife Service
Section 3.11. Air Quality
Impact AQ-2: Generation of Criteria Pollutant Emissions
in Excess of Federal de minimis Thresholds
Proposed Project
Yearly emissions associated with the Project are presented in Tables 3.11-5
through 3.11-7. These tables indicate that implementation of the Project would
not result in the generation of emissions in excess of de minimis thresholds.
Consequently, implementation of the Project is found to be a conforming project
and potential effects are considered less than significant. No mitigation is
required.
Conclusion: Less than Significant.
Full-Tidal Alternative
Yearly emissions associated with the Full-Tidal Alternative are presented in
Tables 3.11-8 through 3.11-10. Similar to the Project, these tables indicate that
implementation of the Full-Tidal Alternative would not result in the generation of
emissions in excess of de minimis thresholds. Consequently, implementation of
the Full-Tidal Alternative is found to be a conforming project and potential
effects are considered less than significant. No mitigation is required.
Conclusion: Less than Significant.
Impact AQ-3: Exposure of Sensitive Receptors to
Substantial Pollution Concentrations or Objectionable
Odors
Proposed Project
Construction activities such as dredging soil from the marshland could generate
objectionable odors. Newly disturbed peat piles could release sulfide gas for
several minutes, after which the emissions would dissipate. As stated above,
sensitive receptors near the project area include adjacent Bay Trail users and
three adjacent residences. Post-construction odors would be similar to existing
conditions and are therefore not anticipated to result in an impact. However,
during construction, short-term odors would likely result from excavation of
marsh soils. Odor impacts, if they occur at all, would be localized. Such odor
emissions would be temporary, limited to a short duration during and after
excavation. Therefore, this impact is considered less than significant, and no
mitigation is required.
Conclusion: Less than Significant.
Sears Point Wetland and Watershed Restoration
Project Final Environmental Impact
Report/Environmental Impact Statement
3.11-24
April 2012