Draft EIS/EIR for the San Luis Reservoir SRA Resource ...

5. Environmental Analysis
Table 5-1
Future Criteria Pollutant Emissions from Plan Area Visitation (2040)
Type CO VOC NO x PM 10 PM 2.5 SO 2
Vehicle Emission Factors
(lb/mi)
Vehicle Emissions
(tons/yr)
Boat Emission Factors
(ton/boat)
Evap Boat Factors
(tons/boat)
0.0135 0.0013 0.0012 8.42252E-05 5.23E-05 9.00E-06
12.744 1.248 1.158 0.079 0.049 0.008
0.00037 1.97E-04 1.80E-05 2.59E-05 2.59E-05 4.48E-08
2.71E-05
Boat Emissions (tons/day) 0.01922 0.01171 0.00094 0.00135 0.00135 0.00000
Boat Emissions
(tons/year)
Total Emissions
(tons/year)
7.02 4.28 0.34 0.49 0.49 0.00
19.764 5.524 1.500 0.574 0.544 0.009
SJVAPCD Thresholds
(tons/year) NA 10 10 15 15 NA
GCR De Minimis Levels
(tons/yr) Attainment 10 10 100 100 Attainment
As shown in Table 5-1, future total emissions from the Plan Area would remain
well below the SJVAPCD thresholds (where thresholds exist) and GCR de
minimis levels. No exceedances would occur if Plan Area motor vehicle and
vessel use doubled. Motor vehicle and vessel use would have to quadruple before
a single threshold (for VOC) would be exceeded; all other criteria emissions
would remain below SJVAPCD thresholds and GCR de minimis levels. Although
automotive and boat traffic would likely vary among the four alternatives, a
quadrupling in future motor vehicle and vessel use in the Plan Area is unlikely to
occur. None of the alternatives would result in levels of park visitation high
enough to create heavy and sustained traffic patterns that would produce major air
quality issues. The indirect effects of increasing vehicle traffic in the region from
Plan implementation would result in only a minor increase in total vehicular
emissions in the area.
In addition, new regulations are expected to reduce air emissions as motorized
vehicle and vessel manufacturers improve their technology to meet emission
standards. As described in Section 2.5, all marine outboard and personal
watercraft engines manufactured in 2008 or later are required to comply with
California Air Resources Board (CARB) 2008 exhaust emission standards for
hydrocarbons and NO x . All marine outboard and personal watercraft engines
manufactured in 2010 or later will be required to comply with USEPA 2008
emission standards (USEPA 2008a), and spark-ignition marine vessel engines
from 2012 and later will be required to comply with CARB and USEPA standards
for evaporative emissions (CARB 2010c). Regulations regarding GHG emissions
from motor vehicles (see below under “Greenhouse Gas Emissions”) would also
reduce criteria pollutant emissions.
San Luis Reservoir SRA 5-19
Draft RMP/GP and Draft EIS/EIR