Ontario Co. Landfill
We are continuing to expand the landfill gas collection system including the replacement of gas wells that were abandoned as part of the recent final cover removal project (both approved by the NYSDEC). Pending additional approval from the DEC, we are proposing to install eight (8) new vertical wells along the upper north secton of the landfill. In addition to these upgrades, we are also planning to relocate the main gas header lines coming into the landfill gas to energy plants which is needed as part of the upcoming landfill expansion construction efforts. We will also be installing two (2) new gas flares in the coming weeks as provided in the new air permit for the facility.
The new vertical gas wells are now installed; 12 wells were installed even though 11 were anticipated. The DEC granted permission for the installation of the additional well. Three of the 12 wells have been connected to the gas collection system and are now conveying gas to the power plants. The remaining wells will be connected to the collection system over the next week as the new laterals are constructed.
The DEC recently provided approval for installation of ~5 acres of temporary cover along a portion of the western landfill slope. Construction of the temporary cap was commensed last week to allow preparation of the slope and installation of the geomembrane anchor trenches. Our geomembrane contactor will be on site later this week to begin deployment of the temporary cap. Weather permitting we anticipate completion of this project later next week.
The DEC also recently issued the new Part 360 operating permit for the landfill. As outlined in the new permit we will be opening the gates at 7 am rather than 6 am going forward.
Despite having just added a new main gas header line, we are once again planning to undertake an additional expansion of the landfill gas collection system beginning in mid November (which has been approved by the NYSDEC). We are planning to add 11 new vertical gas wells which will be tied into the existing gas collection system and should be on line by mid December.
The north and a portion of the western side slopes have recently been seeded as we prepare for winter and we are continuing to clean out the two main stormwater retention ponds.
A majority of the final cover system has now been removed.
We have been filling the lower northern slope for the past few weeks where the final cover system was recently removed. As part of this effort we will be installing horizontal gas collectors as the waste progression proceeds in this general area over the next several weeks. In addition, we are awaiting NYDEC approval for the installation of a new 10" landfill gas header line along the upper back portion of the landfill to provide additional vacuum to gas wells that were installed earlier this year. We are also looking into the installation of 10 - 12 new vertical gas wells which pending NYSDEC approval we hope to install this Fall. Lastly, we are planning (also pending DEC approval) to install ~ 5 acres of temporary exposed geomembrane along a portion of the the back western side of the facility (expanding the existing geomembrane cap).
We are continuing to successfully remove the final cover components along the eastern, northern and western edges of the first cells within the Phase III landfill. As part of this effort we are also continuing to relocate amd expand the landfill gas collection lines and/or we have temporarily shut off some gas wells (as allowed under the air permit). Vacuum will be safely restored to these wells following landfilling activities within these areas.
In addition to the cover removal activities we are also in the process of installing a new haul road along the back eastern slope.
Lastly, starting early next week we will be having a contractor continue with electric utility line relocation along the frontage of the facility near gas to energy facilities.