7.4.12 Fencing. Access to landfills should be limited to one or two
entrances that have gates that can be locked when the site is unattended.
Depending on the topography and vegetation on the site and adjoining area
entrance gates may suffice to prevent unauthorized vehicular access. At
some sites it is desirable to construct periphery fences to keep out any
trespassers and animals.
Fencing requirements will be greatly influenced by the relative
isolation of the site. Sites close to housing developments may require
fencing to keep out children and to provide a visual screen for the
landfill. Landfills that are in relatively isolated areas or a shore
installation may require a less expensive fence or only fencing at the
entrance and other places to keep out unauthorized vehicles.
If vandalism and trespassing are to be discouraged, a 6-foot
(1.8- meter) high chain link fence is desirable (although expensive). A
wood fence or a hedge may be used to screen the operation from view. A
4-foot (1.2-meter) high barbed wire fence will keep cattle or sheep off t
Portable fencing at the working face will help contain wind-blown
litter. For trench operations, a 4-foot (1.2-meter) fence will usually b
adequate, but 6 to 10 feet (1.8 to 3 meters) or higher litter fences may
necessary in area operations. Specially designed portable litter fences
available that are easily moved across the working face.
should be provided at the operating area. Alternatively, lights may be
affixed to haul vehicles and onsite equipment. These lights should be
situated to provide illumination to areas not covered by the regular
headlights of the vehicle.
If the landfill has structures (employee facilities, administrative
offices, equipment repair or storage sheds, etc.), or if there is an acce
road in continuous use, permanent security lighting might be desirable.
7.4.14 Wash Rack. To prevent trucks from carrying litter and mud on
surrounding roadways, the design plans should include a washrack. This i
particularly true in large sites, in wet climates where the soil is heavy
and for sites near residential or commercial areas.
7.4.15 Landscaping. Landscaping for the site should be selected based o
the following criteria:
a) Proposed interim and end uses.
b) Degree of tolerance to adverse soil conditions (e.g.,
concentrations of landfill gas in the soil interstices).
c) Depth of root zone.
d) Amount of water required to sustain growth.
e) Final landfill configuration.
f) Ability to control erosion.
Table 24 lists several trees and grasses that have proven to be
tolerant to conditions at sanitary landfills.