Concrete drainage sewer, gutters pipes for industrial building construction.

Water & Wastewater

Sewall engineering professionals provide public (municipalities, water utilities, state agencies) and private clients with a broad range of water, wastewater, and stormwater planning and engineering services, including permitting, modeling, design, construction administration, and inspection. We also provide utility GIS asset management and develop custom applications. 

Water Supply, Distribution, and Storage

Sewall provides comprehensive water supply and distribution engineering services to meet the needs of industrial, municipal, and residential users. Our previous project experience includes upgrades to transmission and distribution systems, including:

  • System improvement and acquisition studies 
  • Permit and grant funding applications 
  • Design, construction administration, and inspection 

Wastewater, Collection, Treatment, and Disposal

For over a century, Sewall has designed systems that safely transport and treat waste, including hundreds of miles of gravity pipelines, numerous pump stations, force mains, and auxiliary power systems. Our services include: 

  • Permit and grant funding applications 
  • Design, construction administration, and inspection 
  • Combined sewer overflow (CSO) remediation systems 

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