AREA A/B ENGINEERING REPORT - Waste Management

Geosyntec Consultants
waste constituents to the environment. The preventive maintenance program includes the
following:
• Inspection and repair/replacement of vehicular and heavy equipment that is used to
manage waste or perform routine operational functions at the facility;
• General site maintenance, such as collection and disposal of litter, maintenance of access
control systems (e.g., fences, signs, and gates), and upkeep of site infrastructure (e.g.,
roads and buildings);
• Inspection and maintenance of the leachate management system, including:
o Periodic cleanout of LMS collection pipes, leachate recirculation piping (if present),
and underground transmission lines and sumps;
o Inspecting for corrosion and repairing aboveground pipes and leachate storage
tanks;
o Checking pumps, valves, and seals for proper operating characteristics; and
o Maintaining the leachate treatment system (if present);
• Inspection and maintenance of the gas management system, including:
o Performance inspection, maintenance, and monitoring of the well-field, transmission
piping network, valves, and fittings;
o Inspecting condensate management systems and measuring liquid levels in LFG
extraction wells;
o Checking for proper operating characteristics at the flare station (blowers, flare,
flame arrestors, and control systems); and
o Monitoring and maintaining the operation and performance of LFG treatment,
utilization, or energy recovery equipment;
• Maintaining the cover system, including cover vegetation and repairing effects of erosion
or subsidence;
• Maintaining the stormwater management system (i.e., cover drainage features, sediment
trapping devices, stormwater retention/sediment control ponds, diversion channels, silt
fences and other sediment control devices, and vegetation); and
• Inspecting environmental monitoring systems, repairing defective monitoring wells and
probes as necessary, and clearing surface water sampling locations.
Ongoing construction (e.g., expansion and/or realignment) and maintenance of SWMS features,
intermediate cover, and other landfill infrastructure such as roads and access ramps is essential
due to the dynamic nature of landfill operations in which the size and shape of the landfill, and
the location of the active working face, continually changes. Regular re-grading and grassing of
the cover is necessary to minimize erosion at areas lacking vegetative cover. Similarly, during
MD10186.doc 66 29 March 2009