Week ending February 25, 2006
The landfill gas collection and treatment system is nearing
completion with final installation of the gas piping system. The blower
that will collect the landfill gas is on-site and installation will
begin next week. JCED is working with APAC-Reno to construct a housing
unit around the blower to reduce noise.
The contact water collection and treatment continues with the west
and south seeps flowing into the lower east pond at 15 gpm each.
Treatment in of the lower east pond continues with sodium hydroxide and
hydrogen peroxide. Hydrogen peroxide addition has been modified for
direct mixing with the contact water at the source in the 6" collection
line rather than adding to lower pond to allow for more efficient mixing
of the chemical with the contact water. This has lowered hydrogen
peroxide addition. More ideas are still being discussed to improve
treatment efficiency. Sulfide concentration levels in west seep continue
to decrease.
The air monitoring program is working well with weekly downloads of
the landfill perimeter H2S meters by the JCED. Detection levels have
been very low with a few readings at or below 40 ppb (parts per
billion). The three source monitors inside the landfill are operational
and are expected to receive the telemetry software program next week to
begin the automatic alarm system.
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