Our broad knowledge base and state-of-the-art technologies assist our clients in providing clean, safe, and innovative water and wastewater solutions for the communities they serve.


Water is one of our most precious resources. Every day we are reminded that we live in a world of shrinking water supplies, increasing competition for resources, and more stringent regulations. At EST, we understand the challenges faced by water and wastewater utilities, including aging infrastructure, systems operating beyond their design capacity, growing populations, increasing regulations, public perceptions, and high costs

Our staff has extensive experience with planning, design, and construction of complex water and wastewater systems to serve areas varying in size from small rural communities to large metropolitan areas. EST will apply a broad base of knowledge and incorporate state-of-the-art technologies to assist our clients in providing clean, safe, and innovative water and wastewater solutions for the communities they serve.

Key Services

Comprehensive Water and Sewer System Planning

Water Transmission, Treatment, Storage, and Distribution System Design

Sewage Collection, Treatment, and Disposal System Design

Regulatory Review, Permitting, and Compliance Assistance

Computer Modeling and System Analyses

Construction Management

Water System Facility Design and Rehabilitation

  • Water Supply Facilities
  • Water Treatment Facilities
  • Intake Structures
  • Process Design and Optimization
  • Transmission and Distribution Pipelines
  • Pump Stations
  • Water Storage Facilities

Wastewater System Facility Design and Rehabilitation

  • Interceptor/Collection Systems
  • Lift Stations
  • Wastewater Treatment Facilities
  • Process Design and Optimization
  • Odor Control
  • Beneficial Reuse and Landfills

Contact Us

Corporate Headquarters

615 N Hudson Avenue, Suite 300 Oklahoma City, OK 73102

(405) 815-3600

(405) 815-4080