Refer to Polrep #1
From August 20 through August 30, 2005, U.S. EPA and its Emergency Rapid Response Services (ERRS) and Superfund Technical Assessment and Response Team (START) contractors continued actions to reduce releases of hydrogen sulfide from the landfill and eliminate high level exposure to nearby receptors.
Routine actions include on-site and off-site monitoring for hydrogen sulfide and particulate matter, site security, dust control, and general site maintenance. Specific response actions are detailed below.
SITE ACTIVITIES TO DATE:
- Construction of the treatment system continued. The final lengths of HDPE pipe were welded together and the leachate transfer lines were pressure tested. Construction of a pole barn to house the treatment system was initiated. A tank to hold the treatment chemical was placed inside the pole barn. Sand was procured and delivered to site to bury the leachate treatment lines. Trenches for the pipe were excavated and the piping material was placed in the trenches and buried with sand. Conduit pipes were constructed and laid in place for electrical services to the pumps.
- Capping of the Phase II Summit area continued. To date, approximately 50 percent of the Phase II Summit area has been capped. Compaction testing (utilizing a troxler gauge) continued, in order to confirm capping meets proper compaction specification.
- Construction of a storm water ditch continued. Approximately 300 feet of culvert pipe was installed at the east end of the ditch. Rip-Rap was procured and delivered to site for the construction of check dams along the storm water ditch. Unused electric poles in the pathway of the storm water ditch were removed by the local electric company.
- Perimeter air monitoring was conducted during all site activities. No readings exceeding the site’s action level were obtained.
· Install a temporary, high capacity leachate treatment system.
· Per the design plans, install a surface water / storm water management system which includes capping of the "phase 2 summit" location.
· Design and install a permanent leachate management system.
· If necessary, design and install a soil vapor extraction and treatment system.
· Continue implementation of the surface water management system.
· Continue placing a compacted cap over the "summit" location of the Phase 2 landfill.
· The site is non-operational from August 31 - September 6, 2005, due to Hurricane Katarina (heavy rains at site) and the Labor Day holiday.
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