Week ending February 4, 2006
The pipe construction for the APAC-Reno landfill gas collection
system is underway with installation of the 6" main trunk line that
connects all the smaller 3" lateral lines used to collect gas from each
of the 25 landfill gas wells. A condensate knock out tank is also being
installed and this tank is used to remove condensate liquid that gets
into the pipelines. A 6" header pipe that connects all the piping and
delivers the landfill gas to the asphalt plant is planned to be
installed next week followed by connection of the 3" laterals. The
installation of the landfill gas collection system requires excavation
of 2-3' of soil cover to bury the gas lines and has resulted in some
landfill odors. Lime dust is being added to the trenched lines to reduce
odors as well as filling in the trenched lines as soon as the pipelines
are completed.
APAC continues to treat contact water in the lower east pond with
caustic and hydrogen peroxide.
All eight H2S air monitors are in place and functioning. Three of
these monitors are next to the lower east pond and will be part of an
alarm telemetry programming system which is expected to be functioning
in a few weeks.
All intermediate cover of compacted clay material with proper slopes
that cover the south area of the landfill is completed.
The hydrogeologic study continues with monitoring of water levels in
the landfill wells.
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