Our Services

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Regulation and Requirements

The Sigma Group helps the regulated community deal with requirements of the Resource Conservation and Recovery Act (RCRA) and the Comprehensive Environmental Response Clean-up and Liability Act (CERCLA). We understand the regulations and have abundant experience with their interpretation and application.

Sigma provides a variety of specialized hazardous waste services. Our staff is knowledgeable and experienced in permitting and regulatory issues, including management and program planning, waste identification and characterization, packaging and labeling, transportation and disposal, training and record-keeping, and facility cleanup and closure.

Cleanup and Closure

Sigma’s field, engineering, and geoscience expertise are ideally suited to investigating, remediating and securing closure at hazardous waste facilities. We realize that remediation has both client-specific and site-specific needs, so we design each project appropriately. Site remediation is often completed in situ and closure achieved via performance standards. In other cases, cleanup is integrated into beneficial reuse strategies where waste materials are recycled eliminating disposal costs. As a result of experience and common sense approaches, Sigma has an exceptional record for obtaining cost-effective closure.

Compliance Assistance

The regulations affecting waste generators are extensive and govern everything from identifying and classifying hazardous waste to storage, inspection, documentation, and training. Sigma can evaluate your operations, determine which and/or how the regulations apply and assess your program. We can assist with developing, implementing and monitoring comprehensive waste management strategies.

Waste Minimization

Minimization is clearly the best strategy for reducing costs and eliminating regulatory burden. Reducing the quantity and/or the toxicity of wastes can often be accomplished without significant changes to the manufacturing process. Sigma’s familiarity with most industrial processes has produced a proud record of identifying waste minimization and cost-saving opportunities.

Waste Disposal

Sigma assists generators with routine and unanticipated waste disposal. Our field technicians provide assistance with waste sampling and packaging. Our staff can help generators characterize wastes, arrange for laboratory analysis and secure necessary disposal permits. Working with a number of disposal facilities and transporters, Sigma can coordinate all disposal activities from start to finish.

How Sigma Can Help

Closure and Cleanup

  • Closure plan development
  • Corrective action
  • Decommissioning / decontamination
  • Long-term monitoring
  • Recordkeeping / reporting

Compliance Assistance

  • Permit assistance
  • Plan development
  • Recordkeeping / reporting
  • Training
  • TSDF auditing

Disposal Assistance

  • Disposal facility coordination
  • Evaluation of disposal options
  • Labpack disposal
  • Manifest preparation
  • Sampling, packaging, labeling
  • Waste identification / characterization

Waste Management

  • Feasibility studies
  • Treatability studies
  • Toxic reduction plans
  • Waste reduction plans

Featured Projects

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