Odor Control Updates
Sunny Farms Landfill remains committed to implementing more of the best odor control measures in the industry over the balance of the summer and in the fall.
One important measure is expansion of the landfill gas collection system. As we have reported to local public officials and the media, Sunny Farms is currently undergoing its second gas collection system expansion of 2019.
In addition to the 21 new landfill gas extraction wells that were completed in April, we will install 11 new wells in August and September. A specialty landfill gas contractor is assisting with this new phase, which includes expansion of the landfill gas collection piping and extraction well system. It is scheduled for completion in four to five weeks.
We continue to monitor for potential odors during this installation. In addition, we are proactively employing interim measures to minimize the risk of odor generation during this construction activity.
Meanwhile, it’s important to note that the environmental protection systems we’ve already installed continue to be effective. For example:
- There have only been two hydrogen sulfide action level detections since April.
- Perimeter Jerome meter levels in August have been below the action level over 99.8% of the time.
- Our extensive surface emission scanning program indicates that our landfill gas collection system is functioning well and is collecting landfill gas; we have not exceeded the strict action level since April.
These systems are working, and we are rapidly expanding coverage across the landfill footprint. Simply put, installation of the gas collection system expansion is our highest priority, and we will take every precaution to capture and control landfill odors during this construction project.
Landfill Gas Collection System Expansion – Starting 8/19/2019
Sunny Farms recently requested and obtained approval from the Ohio EPA to expand the landfill gas collection system. This project includes installation of nine new landfill gas collection wells. These wells are constructed with special plastic piping and will be installed horizontally in shallow gravel-lined trenches in the active area of the landfill. The project includes over 1 mile of new piping, including nearly 4,000-ft of active collection piping.
This specialized construction technique will allow Sunny Farms to proactively extract landfill gas prior to completely filling active areas of the landfill and thereby minimize potential for offsite odors. During construction, the new wells will be collected to the active vacuum system as they are installed to provide immediate landfill gas control.
We will continue to provide community alerts throughout the 4 to 5-week project if the potential for off-site odor exists.
Compliance with the July 2019 Consent Order
The recently executed consent order between Sunny Farms and the State of Ohio contains many provisions. Sunny Farms has implemented a comprehensive tracking system to maintain compliance with the consent order. In fact, Sunny Farms has already met the following deadline:
On August 1, 2019, Sunny Farms provided a data link for the Ohio EPA and Seneca County General Health Department to access real-time and historic Jerome Meter data for hydrogen sulfide that is measured by Sunny Farms dedicated permanent monitoring network. This was required to be completed by September 1.
Check back for updates as other compliance milestones are achieved.
STATEMENT FROM SENIOR VICE PRESIDENT MATTHEW NEELY CONCERNING SULFUR DIOXIDE LEVELS AT SUNNY FARMS LANDFILL
Sunny Farms has completed extensive and sophisticated chemical, operational, meteorological and air dispersion analysis and modeling of sulfur dioxide emissions from the landfill. The modeling methodology used is widely recognized as state-of-the-art by the scientific and environmental regulatory communities and is approved by both the US EPA and Ohio EPA. Based on this analysis, Sunny Farms meets US EPA’s most stringent sulfur dioxide National Ambient Air Quality Standard, under present and prospective operating scenarios. Compliance with the air quality standard is highly protective of the most sensitive individuals.
In the meantime, it’s important to note that Sunny Farms continues to make substantial investments in new technology and processes, which have essentially eliminated any odor action level exceedances over the past two and a half months. Further, recent independent testing of soil and water confirmed that surface water quality meets or exceeds local, state and federal drinking water standards. Sunny Farms will continue to operate in a manner that protects residents and the environment.
A spare blower is being added to the flare this morning as a precautionary measure and it requires that the landfill gas flare be shut down during the installation. It is anticipated to be completed by noon. An update will be sent when the flare is returned to service. in addition, trenching into the landfill’s soil cover and waste to install additional horizontal gas collectors has resumed. It is anticipated that the work will be performed for the remainder of this week, with each day’s work re-covered with soil by 6:00 p.m.
The last of the four caisson-type gas collection wells planned for this round of vertical well extensions was successfully raised today and the current round of well extensions has been completed. Sunny Farms intends to continue next week with gas collector trench installation.
Three of the four caisson-type gas collection wells planned for this round of extensions have been successfully raised yesterday and today. One well remains to be raised tomorrow. An update will be sent when it is completed.
Work is being performed to raise previously installed caisson-type gas collection wells to accommodate additional waste fill in the vicinity of the wells. It is anticipated that the work will be performed for the remainder of this week. Each well that is raised will be completed that day so that the potential for the release of odor overnight is minimized. An update will be sent each day this week.
UPDATE, October 31, 2019 at 7PM: Work to install additional horizontal gas collection piping in Cells 9 and 10 as described in the earlier alert on 10/31 has been completed.
Work is being performed to install additional horizontal gas collection piping in shallow trenches on the west side of the landfill in Cells 9 and 10. It is anticipated that the work will be completed by the end of the day, October 31, 2019.
The trenching into waste and soil cover to install gas collection piping is continuing today and will continue through Friday of this week, weather permitting. An update will be provided Friday, September 20, that work has been completed for the week, or sooner if that occurs.
UPDATE, September 6, 2019: The well drilling portion of the work described below has been completed. Gas extraction wells GW-251 and GW-252 have been installed in active Cell 10 of the landfill. The trenching into waste and soil cover to install gas collection piping is continuing today and following today, is scheduled to resume Monday, September 9.
Sunny Farms Landfill has begun drilling into waste this afternoon to install additional gas extraction wells in Cell 10 to enhance gas collection. The drilling is expected to continue for approximately two to three days. The trenching into waste and soil cover to install gas collection piping as described on August 6 and 26, 2019, is also continuing. Updates will be provided periodically during the work.
Work will be performed intermittently as weather permits during the next few days to begin installation of additional horizontal trench gas collectors to maximize coverage of the existing landfill gas collection system. The work will involve trenching into soil cover and waste to install collection piping. Updates regarding the work will be posted periodically.
Work will be performed intermittently as weather permits during the next few days to begin installation of additional horizontal trench gas collectors to maximize coverage of the existing landfill gas collection system. The work will involve trenching into soil cover and waste to install collection piping.
The following event will occur that could potentially cause the migration of odors beyond the landfill property line: Caisson-type gas extraction wells in active Cell 10 are being raised today and tomorrow to accommodate waste filling. If the work will extend beyond tomorrow, another notification will be sent.
The following event will occur that could potentially cause the migration of odors beyond the landfill property line: Work is being performed on the piping to two of the gas treatment boxes, which may cause intermittent interruptions in the operation of one of the landfill flares (Flare 1).
The following event will occur that could potentially cause the migration of odors beyond the landfill property line: Two caisson-type gas extraction wells in active Cell 10 are being raised today to accommodate waste filling. The work will be completed today barring unforeseen circumstances. Another notification will be sent if it is not.
The following event will occur that could potentially cause the migration of odors beyond the landfill property line: Two caisson-type gas extraction wells in active Cell 10 are being raised today to accommodate waste filling. The work is a continuation of the work begun yesterday.
UPDATE: The work described below has been completed for the day.
Three caisson-type gas extraction wells in active Cell 10 are being raised today to accommodate waste filling. Another notification will be sent when the work has been completed.
The work regarding the dripleg for the Cell 10 gas system was completed at approximately 8 p.m. Tuesday.
The final dripleg for the Cell 10 gas system will be installed today, requiring excavation into the soil cover and waste. The system has been in operation with the use of a temporary dripleg. The work will be performed as weather allows during the day and another notification will be sent when it has been completed.
Beginning now, piping upgrades are being made to the air compressor that serves the two landfill flares that will require the flares to be turned off for approximately one hour. If any difficulties are encountered that will require the work to extend beyond the hour, another notification will be sent with an update.
The drilling of landfill gas wells has resumed this afternoon to complete the wells for Cell Gas System installation. Three wells remain to be drilled and the drilling is anticipated to be completed Thursday. The previously utilized vacuum box will be utilized at each drilling location to minimize odors. Another notification will be sent when drilling is complete.
Additional landfill gas extraction well installation is planned for the next 2 to 3 days. We will provide additional updates as the project progresses. Some odors may be generated during the construction project as previously placed waste is disturbed to install three (3) new wells. A gas collection device is used during the drilling process, but some odor may escape the vacuum system. This possible short-term inconvenience will result in long term improvements for Sunny Farms.
This is to notify the public that the excavation of the anchor trench described in an earlier alert today was minimal and has been completed for the day.
During the course of the next few days, an odor control blanket (OCB) is being installed on the west and north slopes of the active landfill area south of Township Road 108, requiring the excavation of a shallow anchor trench to secure the OCB at its perimeter. The excavation into the soil cover may encounter landfill gas in some areas. Sunny Farms Landfill and its contractors will strive to minimize any excavation that may cause a release of odors and will update you periodically as the work progresses.
This alert is no longer active. The dripleg installation described below was completed on April 3, 2019, in the late afternoon and the soil cover was restored in the work area.
A condensate dripleg will be installed today for the Cell 10 gas collection system that is currently under construction and in partial operation. The dripleg installation will require the excavation of cover and waste in a relatively small area. The installation is anticipated to last most of the workday and another notification will be sent when it is complete and the area is re-covered.
This alert is no longer active. The temporary shutdown of the landfill flares described below ended at 10:15 a.m. today and that both flares were returned to full operation.
The following event is occurring that could potentially cause the migration of odors beyond the landfill property line:
Both landfill gas flares will be shut down temporarily to connect a transfer switch to allow connection of a backup power supply per Order #19 of the same DFFO’s. The shutdown is anticipated to last for approximately two hours and another notification will be sent when the flares have been returned to operation.
The temporary shutdown of the landfill flares described below ended at 10:15 a.m. today and that both flares were returned to full operation.