Environmental Impact Statement - Sonoma Land Trust

California Department of Fish and Game
U.S. Fish and Wildlife Service
Section 3.11. Air Quality
• Cover all trucks hauling soil, sand, and other loose materials or require all
trucks to maintain at least two feet of freeboard.
• Pave, apply water three times daily, or apply (non-toxic) soil stabilizers on
all unpaved access roads, parking areas and staging areas at construction
sites.
• Sweep daily (with water sweepers) all paved access roads, parking areas and
staging areas at construction sites.
• Sweep streets daily (with water sweepers) if visible soil material is carried
onto adjacent public streets.
• Hydroseed or apply (non-toxic) soil stabilizers to inactive construction areas
(previously graded areas inactive for ten days or more).
• Enclose, cover, water twice daily or apply (non-toxic) soil binders to exposed
stockpiles.
• Limit traffic speeds on unpaved roads to 15 mph.
• Install sandbags or other erosion control measures to prevent silt runoff to
public roadways.
• Replant vegetation in disturbed areas as quickly as possible.
• Install wheel washers for all exiting trucks, or wash off the tires or tracks of
all trucks and equipment leaving the site.
• Limit the area subject to excavation, grading and other construction activity
at any one time.
In addition, the construction contracts shall include measures to reduce
combustion pollutants to address particulate matter (PM2.5) exposure from diesel
engines consistent with the 2010 BAAQMD CEQA guidelines where feasible.
The contractor shall be required to submit an inventory of equipment to confirm
compliance with the Level 3 abatement device requirements of the CARB. In
addition mitigation may include the use of late model engines, low-emission
diesel products, alternative fuels, engine retrofit technology, after-treatment
products, reduction in idling time, add-on devices such as particulate filters,
and/or other options as they become available. The mitigated emissions shown in
Tables 3.11-5 through 3.11-7 do not reflect the further reductions in emissions
associated with these specific PM2.5 reduction measures.
Conclusion: Less than Significant with Mitigation.
Full-Tidal Alternative
Construction of the Full-Tidal Alternative would result in the temporary increase
in emissions of ROG, NO x , CO, PM10, PM2.5, and CO 2, similar to the impacts
described above under the Project. Total estimated annual unmitigated and
mitigated project emissions resulting from construction of the Full-Tidal
Alternative in 2011 through 2013 are summarized in Tables 3.11-8 through 3.11-
Sears Point Wetland and Watershed Restoration
Project Final Environmental Impact
Report/Environmental Impact Statement
3.11-21
April 2012