Landfill Gas Services

WCG is recognized as a leader in the landfill gas (LFG) field, having provided LFG services at over 100 sites in the United States.  WCG has proven experience providing practical solutions to a wide variety of LFG and air quality issues.
WCG offers complete turnkey LFG services from project conception through construction and operation and maintenance.  We also provide individual project components (e.g., feasibility studies, air permitting, design, construction, O&M, equipment, monitoring, and related services).

WCG has extensive project experience in LFG collection and control system planning and development, including field services.
Through its hands-on experience and knowledge of industry standards, WCG has gained the reputation as an industry leader due to its ability to recognize efficient and effective solutions to LFG management problems.  This has enabled WCG to make accurate decisions that affect design, coordination, and site evaluation activities.

Our involvement in a wide variety of LFG-related projects has allowed the firm to become proficient in all phases of LFG technology and management expertise.  Our capabilities are outlined below in the key service areas of:

  • LFG Engineering Control System
  • LFG-to-energy (LFGTE) Project Feasibility
  • LFGTE Project Development
  • LFG Field Services

An overview of our key LFG services follows.

LFG Engineering Control System

WCG routinely designs LFG emissions and migration control systems consistent with regulatory requirements, site conditions, economic constraints, and environmental considerations.
Key LFG control service includes:

  • Developing LFG monitoring, design, and management plans for migration and emission controls
  • Developing and conducting LFG field assessments to evaluate site compliance with LFG control performance standards and to identify any LFG-related hazards
  • Developing, designing, permitting, constructing, and operating LFG control programs; ranging from small, passive LFG barrier and venting systems to comprehensive active LFG collection and control systems (GCCS).
  • Evaluation of control alternatives
  • NSPS/EG compliance
  • Control and flaring system design, construction and operation

LFGTE Project Feasibility

WCG’s full-service approach to developing an LFGTE project can guide a client through the entire process, including preliminary feasibility, engineering design and permitting, construction support, and startup assistance for successful project development.
WCG routinely assists with the following components of a project feasibility analysis:

  • LFG generation rate modeling
  • End user marketing analyses
  • Technical and economic feasibility studies
  • Coordination with public awareness and communication programs

Our project feasibility determinations can assess potential end users and markets for the LFG, develop financial estimates and projections to focus on the most feasible alternative, and help landfill owners decide whether to develop the project independently or to lease LFG rights to an outside developer in return for a royalty.  We can also assist with efforts to promote public awareness through communications with the local community in an effort to gain public support for these beneficial use projects.

LFGTE Project Development

Once project feasibility has been determined and a conceptual collection system has been designed, WCG assists each client in developing an economically viable LFG recovery project.  In most of the projects, LFG (approximately 50 percent methane, with a heating value 1/2 that of natural gas) is used either directly as a medium-BTU fuel or processed to a higher BTU value.  The industry’s most common uses for LFG have included:

Medium-BTU Gas

  • Industrial/boiler fuel
  • Engine-generator sets
  • Internal combustion
  • Gas turbine generator sets

High-BTU Gas

  • Pipeline quality gas
  • CNG/LNG vehicle fuel

WCG routinely assists with the following components of the project development process:

  • Equipment vendor negotiation and selection
  • Contract negotiations with the LFG user or developer
  • Full project engineering and design
  • Air and solid waste permitting assistance
  • Construction management and quality assurance/quality control programs
  • Collection, energy conversion, and initial installation
  • Equipment and LFG field maintenance and operation

WCG has been involved in the development of numerous LFG recovery projects which include:

  • Design of energy-recovery LFG collection systems
  • Design of LFG-to-electrical generation facilities
  • Design of LFG-to-ethanol production facilities
  • Construction of the LFG collection and energy recovery systems
  • Operation, monitoring and maintenance of the LFG collection and energy recovery systems

LFG Field Services

As a full-service environmental engineering consulting firm, WCG also provides comprehensive field services to complement our in-house engineering capabilities.  For LFG projects, these services include the following:

  • Construction of LFG collection and control systems
  • Construction management
  • Construction quality control and assurance inspections
  • Initial LFG control system startup and balancing
  • Training of client personnel in system operation, monitoring, and maintenance
  • Assistance in the selection, operation, and maintenance of recommended LFG monitoring instrumentation

WCG maintains a staff of experienced field technicians for operation, monitoring, and maintenance of LFG monitoring, collection, and flaring systems.  Whether responding to a client’s request for one-time field sampling and analysis or providing long-term LFG system operation and maintenance (O&M) services, our field personnel remain current with state-of-the-art field procedures.

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