Bringing Quality and Sustainability to Our Communities

A Texas-based water resources and environmental engineering firm.

A Legacy
of Success

With a reputation built by our founder, Rich Oller, on water and wastewater operations and management, our purpose is to provide a “boots-on-the-ground” approach to solving our clients’ problems. At OEI, we have, and continue to, place the utmost importance on our client relationships and assuring solutions that bring concepts to fruition.

Services

Water & Wastewater

Environmental

Stormwater & Drainage Management

Land Development & Site Improvements

Transportation

Water & Wastewater

Environmental

Stormwater & Drainage Management

Land Development & Site Improvements

Transportation

Our Trusted Clients

Beyond Engineering

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