Primary Risk Associated with traditional MSE Systems—Control of Water

The Encapsulated Mechanically Stabilized Earthen (eMSE) Berms in Landfill Expansions

Proactive Control of Moisture: In an eMSE system application, the geomembrane liner system fully encapsulates the system, including the fill material, preventing the migration of stormwater run-on or run-off into the fill material. In addition to the encapsulation system, a toe drain collector at the bottom of the eMSE system collects water that enters the fill during construction.

See Article
By Design: Safer
A geomembrane as primary and secondary containment
Toe Drain System to collect, transport, and dispose of the moisture collected


Efficient Use of Space

The use of an eMSE berm can also provide a more efficient use of valuable landfill airspace. Materials used as eMSE berm fill material can be material that would typically be managed as capacity-depleting municipal solid waste, such as low-impacted soils, certain processed construction demolition debris, or captive industrial landfill materials provided the materials satisfy project specifications. By using materials that typically consume airspace as berm fill material the landfill’s airspace is used more efficiently.

  • Creates additional disposal capacity over top of an existing landfill footprint
  • Uses existing facility operations infrastructure
  • Incorporates existing environmental management controls
  • Lessens irretrievable commitment of resources compared with the land commitment that would be associated with a lateral expansion
  • Avoids a potentially long and costly facility siting process
  • Increases capacity without increasing closure cost and with negligible impact on post-closure costs
By Design: Preserving the Environment


Reuse of Non-Traditional Materials to Reduce Construction Costs

A traditional MSE berm is inherently expensive particularly if the expanding facility must pay to source natural soil fill material for construction. This may represent the single-greatest economic challenge for the justification of a traditional MSE berm for landfill expansion. Material markets that could not be previously pursued (in both cases representing non-capacity diminishing revenue) can become a new source benefiting the owner. While there are multiple factors that come into play on a site-specific basis, a technical and economic evaluation can help determine where an eMSE berm application is appropriate. The availability of beneficial use material that satisfies the specific project requirements may tilt the economic justification of landfill expansion away from the implementation of a traditional MSE berm towards that of an eMSE berm.

  • Reuse of non-traditional construction materials avoids costly procurement of natural resources

  • Reduces/Eliminates purchase of acreage for waste containment footprint (lateral expansion)

  • Leverages existing facility permit

  • Negligible impact on post-closure costs in comparison (lateral expansion)

  • Can provide land reuse infrastructure; reducing future conversion costs

By Design: Cheaper
Construction Material: CCR
Construction Material: Impacted Soils
Construction Material: Incinerator Ash
Construction Material: Non-Recyclable Materials
Construction Material: Dredge Spoils

In this economy, EnCAP-IT’s technology has proven to be a “breath of fresh air” in Waste Industry’s struggle to provide solutions increasing value, sustainability, and profitability while maintaining the highest environmental stewardship for the communities in which we operate and serve.

Chief Financial Officer, Waste Industry

The simple idea of full encapsulation within the MSE berm is tremendously advantageous to the customers by reducing the financial burden of this type of capital expenditure. This provides “smaller” landfill operators (private or public) the ability to initiate this type of project.

Industry Manager, Waste Containment Market