Interested in learning more about our Water & Environment expertise?


In the face of escalating challenges posed by aging yet vital water, wastewater, and stormwater infrastructure across the country, choosing the right water and environment consultant has never been more important. Gresham Smith has been an industry leader for more than four decades, serving water, wastewater and stormwater clients. Our team of project management, technical, and construction services professionals bring their extensive knowledge and expertise to a diverse range of project types. These encompass comprehensive solutions for wastewater treatment and collection, water treatment and distribution, stormwater collection and treatment, industrial water and wastewater management, as well as construction-phase services, including construction management, engineering, startup and commissioning services.

We also specialize in working with our clients to find the most cost-effective and efficient approaches to delivering their projects. This includes methods such as design-bid-build, design-build, construction management at risk, progressive design build, and other strategies for efficient and collaborative project delivery. As a trusted advisor and owner’s engineer, Gresham Smith also assists our clients in identifying best practices and approaches for cost-effective solutions in water, wastewater and stormwater projects, including innovative capital infrastructure funding approaches, such as Energy Service Company (ESCO) collaborations.

At the heart of our approach is a deep understanding of the diverse challenges our clients face, spanning areas like evolving regulations, public perception, risk and resiliency considerations, capacity, reliability and O&M challenges, future cost containment and upstream/downstream impacts. We firmly reject one-size-fits-all solutions, recognizing the unique needs of each client. Through the development of customized, collaborative projects, we not only empower but also propel our clients to effectively fulfill their public health and environmental protection missions and honor their commitments to ratepayers and stakeholders.

Wastewater Collection, Treatment and Reuse
Stormwater Management
Water Treatment and Distribution
Industrial Water and Wastewater Management
Construction Services


  • Asset Management
  • Collaborative Project Delivery
  • Design and Bidding Services
  • Engineering
  • Hydraulic Modeling
  • Instrumentation and Controls/Smart Water Design
  • Operations Consulting
  • Owner’s Representative Services
  • Permitting
  • Sanitary Sewer Evaluation Surveys
  • Wastewater Process Modeling


All Types
All Types
Construction Services
Industrial Water and Wastwater Management
Stormwater Management
Wastewater Collection, Treatment and Reuse
Water Treatment and Distribution
F. Wayne Hill WRC On-Call Program
City of Ennis Downtown Master Plan Implementation Phase I
The Water Tower Global Innovation Hub
Cumberland City Low Transmission Water Main
Blue Bell Creameries Broken Arrow Wastewater Pretreatment Facility
City of Memphis Sewer Assessment and Rehabilitation Program (SARP 10) Program Management
Piedmont Atlanta Hospital Water Reclamation and Reuse System
FC Cincinnati Water Main Replacement

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