Designing framework for long-term success.

As demographic, climatic, and regulatory changes exert increasing pressure on water supplies, RESPEC’s water and wastewater infrastructure team provides a wide range of consulting and engineering services to help clients develop, install, use, and manage critical water and wastewater infrastructure with total quality assurance.  Through collaboration with our clients, we develop complete solutions—from concept through construction phases—that give our clients confidence in water and wastewater solutions.

Founded in 1969, RESPEC delivers comprehensive, professional, engineering services for private and municipal wastewater systems.  RESPEC’s experience in wastewater systems includes capital-improvement planning, feasibility studies, inflow and infiltration studies, permitting and funding assistance, collection systems design, construction administration and observations, and stakeholder involvement.

RESPEC’s professionals also assist communities in locating, supplying, treating, storing, and distributing water to serve industrial, commercial, and residential communities.  RESPEC’s experience in water supply includes capital-improvement plans, assistance with utility rate studies, water supply and water quality studies, distribution system modeling, permitting and funding assistance, regional studies, well-source development, distribution systems design, pumping systems, storage tanks,  modeling, security, wellhead protection, and construction observation services.

Our professionals have extensive experience in evaluating water rights, developing water augmentation plans, and determining consumptive use from different water uses. We have completed over 100 water-rights engineering projects for both public and private clients.

Water & Sewer Infrastructure Flyer


    • Water and Wastewater System Modeling and Planning
    • Water Distribution and Transmission Mains Design
    • Wastewater Interceptor and Collection System Design
    • Booster Pump and Sewage Lift Station Design
    • Raw and Treated Water Storage Facility Design
    • Reuse Supply Planning
    • Service Plan Design for Special Districts
    • Water Supply Studies
    • Economic Feasibility Studies
    • On-Call Authority/District Engineering Service

Water & Sewer Infrastructure projects

Learn more about related projects where RESPEC has proven our expertise in this area.

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Aspen Rio Grande Park Stormwater Improvements

Engineering a water quality treatment facility at Rio Grande Park while ensuring that the park provides an aesthetic environment for visitors.

Belle Fourche Irrigation District Siphon Replacements

Providing design and construction administration services for replacing an inverted siphon pipe.

City of Brighton Utility Project

Providing water and wastewater services to extend city development.

High Line Canal

Developing practical solutions for repurposing the High Line Canal for collecting and treating stormwater runoff.

SWMM/EPANET User Interface Reengineering

Updating software user interface that is designed to manage input data, drive specialized simulations, and analyze output data that are user-friendly.

US Highway 24 Fountain Creek and Waldo Canyon

Evaluating damage and mitigation options after devastating fires and severe flooding in Colorado.
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Water & Sewer Infrastructure products

RESPEC’s product line is geared towards making businesses and organizations better, faster, smarter, and safer. Our products benefit clients in need of greater efficiency, accuracy, and cost savings.

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Storm Water Management Model (SWMM)

RESPEC reengineered the user-interface architecture for the Environmental Protection Agency's Storm Water Management Model (SWMM) and EPANET.
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Walt Pennington
Principal Consultant


Alan Leak, PE
Program Manager, Water Rights & Infrastructure