Prefeasibility Access Road Design-Revised
32
The unpaved portion of the Warren Peak Route for the initial build has an area
of 702,024 yd2. An application rate of 0.3 gallons/yd2 every three months
results in chloride use of approximately 280,000 gallons per year.
After the final aggregate coverage, the entire Warren Peak Route has an area of
1,194,024 yd2. An application rate of 0.3 gallon/yd2 every three months results
in chloride use of approximately 477,600 gallons per year.
PAVED PORTION
Paving of a road is treated as a preventive measure when compared to unpaved
roads. When emissions from the unpaved portion of the road are compared to
the paved road emissions on the same route, emissions for the paved roads are
approximately 93% lower than the unpaved roads emissions of PM10 (0.09
lb/vmt compared to 1.38 lb/vmt). Therefore, no additional control may be
necessary to minimize visible emissions for the paved portion of the Warren
Creek Route. Minimal visible emissions would be expected from the paved road.
Emissions from the paved portion are included in Table 4, Warren Creek Route.
Emissions may mitigated for paved roads through a combination of sweeping,
vacuuming, and/or water flushing; however emissions are expected to be
sufficiently low in this instance that emissions and control techniques are not
described here.
SUMMARY
The Miller Creek Route would use an annual weighted daily average of
approximately 64,376 gallons of water per day to achieve 75% control of PM10
emissions. Emissions from the Miller Creek Route would be approximately 17.7
tpy at this 75% control.
The Warren Peak Route would use an annual weighted daily average of
approximately 35,137 gallons of water per day to control emissions from the
initial unpaved portion, and 59,762 gallons per day for the final aggregate
coverage to achieve 75% control of PM10 emissions. Emissions from the Warren
Peak Route for the initial build for both the controlled unpaved portion and the
paved portion would be 11.5 tons per year, and 16.6 tons per year after final
aggregate coverage.
Chloride suppression is only applicable to unpaved portions of the routes. The
Miller Creek Route would require 514,500 gallons per year of chloride solution.
The initial build of the Warren Peak Route would require 280,000 gallons per
year of chloride solution. After final aggregate coverage, the Warren Peak Route
would require 477,600 gallons per year of chloride solution.
