Water & Wastewater

Water distribution, wastewater collection, combined sewer tunnels and storage and water, wastewater, combined sewer overflow treatment and pumping facilities, and storm water management.

Water Treatment and Distribution System Design

Sigma provides water treatment and distribution expertise for the analysis and design of new pipelines, storage, pumping systems, and facilities including the rehabilitation and upgrade of existing systems.

Sigma possesses extensive knowledge of the requirements of regulatory agencies (local, state, and federal) and successfully works closely with these entities on behalf of our clients.

Sigma’s representative expertise includes:

  • System-wide master planning
  • Individual site or facility plans
  • Feasibility studies
  • Hydraulic distribution analysis and modeling
  • Corrosion control studies
  • Conceptual and detailed designs
  • Construction administration and management
  • Operations and maintenance development and training
  • Startup assistance

Wastewater Treatment and Collection System Design

Sigma provides wastewater expertise in combined and sanitary sewer overflows and control facilities (CSO/SSO), collection, treatment, pumping, and stormwater reduction, storage, and conveyance systems.

Our extensive knowledge of the requirements of regulatory agencies (local, state, and federal) ensures our ability to successfully interface on behalf of our clients for the mitigation of CSO and SSO issues. Sigma has assisted with feasibility studies and negotiations for NPDES permits and state revolving loan funding, as well as Capacity, Management, Operations and Maintenance Analysis (CMOM).

Sigma’s representative expertise includes:

  • Program management
  • Master and site/facility plans
  • Flow monitoring
  • Feasibility studies
  • Design
  • Construction management
  • Performance testing and certification
  • Operations and maintenance manuals and training
  • Processes and equipment

Need an expert?

With resources throughout the United States and our offices in the Midwest and Mid-Atlantic, we possess the capabilities to mobilize quickly to service our clients' needs.

Contact Us

Our Services

Sigma utilizes a diverse, multi-disciplinary workforce, who effectively address client issues and deliver results which enhance reliability and performance.

View Services

Experience. Accountability. Quality.

Delivering engineering support throughout all phases of a project from concept, planning and design, through integration, construction, startup, training, and on-call maintenance.

See how we do it