COMANCO Installs Another Methane Gas Management System Supporting Land Repurposing Efforts
Repurposing former landfill property comes with unique engineering and construction challenges. One of the most important considerations is managing methane gas movement beneath new structures. Without proper gas management systems, methane accumulation can create safety risks, operational concerns, and long-term maintenance issues for facility owners.
Methane gas management systems play a critical role in safely redeveloping previously unusable land. These systems help control subsurface gas migration while supporting safe construction practices and long-term site performance.
COMANCO is currently supporting the installation of a Methane Gas Management System (MGMS) for a multi-building development project built on a former landfill site. The project includes geosynthetic liner installation and vent riser installation beneath multiple structures as crews work through changing site conditions and evolving project requirements.
Managing Methane Beneath Redeveloped Sites
Building on former landfill property requires careful planning and coordination between engineers, contractors, and project owners. Subsurface conditions can vary significantly across a site, especially on older landfill areas where settlement and buried materials may affect construction activities.
Methane gas generated from decomposing waste does not simply disappear over time. Gas movement beneath buildings must be properly managed to reduce the risk of accumulation beneath slabs or within structures.
That challenge becomes even more important on projects involving multiple buildings and phased construction schedules. Design modifications, schedule changes, and unforeseen field conditions often require contractors to adjust installation methods while maintaining compliance with project specifications.
On this project, crews have continued adapting to changing site conditions while keeping work progressing safely and efficiently. Strong communication between all parties has helped maintain workable solutions throughout construction.
Installing the Methane Gas Management System
COMANCO’s scope includes installing 60 mil HDPE smooth liner supplied by SKAPS along with vent riser systems beneath five separate buildings.
Three of the five buildings are currently near scope completion, bringing the overall project to roughly 60 percent complete.
Completed and active installation areas include:
- Building 1: 131,216 SF of liner supplied and installed
- Building 2: 149,833 SF of liner supplied and installed
- Building 5: 126,284 SF of liner supplied and installed
Upcoming installation areas include:
- Building 3: 151,560 SF scheduled for installation
- Building 4: 133,508 SF scheduled for installation
The project also includes installing vent risers using SCH80 PVC and HDPE pipe systems. Traditionally, SCH80 PVC outlet piping has been used on projects like this. However, this project marks the first two buildings using HDPE outlet pipe in place of SCH80 PVC.
That adjustment required additional coordination during construction due to the modified design approach and changing field conditions.
Adapting to Unique Site and Design Conditions
Every landfill redevelopment project presents different challenges. This project includes several unique construction details that required careful coordination in the field.
One notable feature involves outlet pipes passing directly through the building footer without the use of a traditional header pipe system. That configuration required precise installation sequencing and coordination among trades throughout construction.
Crews also had to manage evolving site conditions caused by project delays and ongoing design modifications. Maintaining progress under those conditions requires experienced field supervision and consistent communication between all parties involved.
Foreman Martin Calderon Jr. and Superintendent Juan Ayala have continued coordinating installation activities while adjusting to changing project needs across multiple work areas.
Supporting Long-Term Land Repurposing
Former landfill properties can provide valuable redevelopment opportunities when environmental systems are installed correctly. Methane gas management systems help make those projects possible by supporting safe construction practices and protecting long-term building performance.
Proper liner installation and gas management infrastructure also help reduce future maintenance concerns and operational risks for owners.
As work continues across the remaining buildings, COMANCO crews remain focused on safe installation practices, quality control, and maintaining progress despite changing field conditions.
Projects like this demonstrate how experienced environmental contractors help transform previously unusable land into productive sites while managing the environmental challenges that come with redevelopment.
SAFETY ★ QUALITY ★ SERVICE
COMANCO is an environmental, commercial, and civil construction company specializing in constructing containment facilities.
Methane gas management systems play a critical role in safely redeveloping former landfill properties. Projects like this require experienced installation crews, strong coordination, and the ability to adapt to changing site conditions throughout construction. From geomembrane liner installation to vent riser systems, every component contributes to long-term environmental protection and safe site development.
To learn more about COMANCO’s experience with methane gas management systems and environmental construction services, contact COMANCO.
📍 4301 Sterling Commerce Dr, Plant City, FL 33566
📞 (813) 988-8829
🌐 www.comanco.com